1 /* tc-hppa.c -- Assemble for the PA
2 Copyright 1989, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001,
3 2002, 2003, 2004, 2005, 2006 Free Software Foundation, Inc.
5 This file is part of GAS, the GNU Assembler.
7 GAS is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2, or (at your option)
12 GAS is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with GAS; see the file COPYING. If not, write to the Free
19 Software Foundation, 51 Franklin Street - Fifth Floor, Boston, MA
22 /* HP PA-RISC support was contributed by the Center for Software Science
23 at the University of Utah. */
28 #include "safe-ctype.h"
31 #include "bfd/libhppa.h"
33 /* Be careful, this file includes data *declarations*. */
34 #include "opcode/hppa.h"
36 #if defined (OBJ_ELF) && defined (OBJ_SOM)
37 error only one of OBJ_ELF
and OBJ_SOM can be defined
40 /* If we are using ELF, then we probably can support dwarf2 debug
41 records. Furthermore, if we are supporting dwarf2 debug records,
42 then we want to use the assembler support for compact line numbers. */
44 #include "dwarf2dbg.h"
46 /* A "convenient" place to put object file dependencies which do
47 not need to be seen outside of tc-hppa.c. */
49 /* Object file formats specify relocation types. */
50 typedef enum elf_hppa_reloc_type reloc_type
;
52 /* Object file formats specify BFD symbol types. */
53 typedef elf_symbol_type obj_symbol_type
;
54 #define symbol_arg_reloc_info(sym)\
55 (((obj_symbol_type *) symbol_get_bfdsym (sym))->tc_data.hppa_arg_reloc)
57 #if TARGET_ARCH_SIZE == 64
58 /* How to generate a relocation. */
59 #define hppa_gen_reloc_type _bfd_elf64_hppa_gen_reloc_type
60 #define elf_hppa_reloc_final_type elf64_hppa_reloc_final_type
62 #define hppa_gen_reloc_type _bfd_elf32_hppa_gen_reloc_type
63 #define elf_hppa_reloc_final_type elf32_hppa_reloc_final_type
66 /* ELF objects can have versions, but apparently do not have anywhere
67 to store a copyright string. */
68 #define obj_version obj_elf_version
69 #define obj_copyright obj_elf_version
71 #define UNWIND_SECTION_NAME ".PARISC.unwind"
75 /* Names of various debugging spaces/subspaces. */
76 #define GDB_DEBUG_SPACE_NAME "$GDB_DEBUG$"
77 #define GDB_STRINGS_SUBSPACE_NAME "$GDB_STRINGS$"
78 #define GDB_SYMBOLS_SUBSPACE_NAME "$GDB_SYMBOLS$"
79 #define UNWIND_SECTION_NAME "$UNWIND$"
81 /* Object file formats specify relocation types. */
82 typedef int reloc_type
;
84 /* SOM objects can have both a version string and a copyright string. */
85 #define obj_version obj_som_version
86 #define obj_copyright obj_som_copyright
88 /* How to generate a relocation. */
89 #define hppa_gen_reloc_type hppa_som_gen_reloc_type
91 /* Object file formats specify BFD symbol types. */
92 typedef som_symbol_type obj_symbol_type
;
93 #define symbol_arg_reloc_info(sym)\
94 (((obj_symbol_type *) symbol_get_bfdsym (sym))->tc_data.ap.hppa_arg_reloc)
96 /* This apparently isn't in older versions of hpux reloc.h. */
98 #define R_DLT_REL 0x78
110 #if TARGET_ARCH_SIZE == 64
111 #define DEFAULT_LEVEL 25
113 #define DEFAULT_LEVEL 10
116 /* Various structures and types used internally in tc-hppa.c. */
118 /* Unwind table and descriptor. FIXME: Sync this with GDB version. */
122 unsigned int cannot_unwind
:1;
123 unsigned int millicode
:1;
124 unsigned int millicode_save_rest
:1;
125 unsigned int region_desc
:2;
126 unsigned int save_sr
:2;
127 unsigned int entry_fr
:4;
128 unsigned int entry_gr
:5;
129 unsigned int args_stored
:1;
130 unsigned int call_fr
:5;
131 unsigned int call_gr
:5;
132 unsigned int save_sp
:1;
133 unsigned int save_rp
:1;
134 unsigned int save_rp_in_frame
:1;
135 unsigned int extn_ptr_defined
:1;
136 unsigned int cleanup_defined
:1;
138 unsigned int hpe_interrupt_marker
:1;
139 unsigned int hpux_interrupt_marker
:1;
140 unsigned int reserved
:3;
141 unsigned int frame_size
:27;
144 /* We can't rely on compilers placing bitfields in any particular
145 place, so use these macros when dumping unwind descriptors to
147 #define UNWIND_LOW32(U) \
148 (((U)->cannot_unwind << 31) \
149 | ((U)->millicode << 30) \
150 | ((U)->millicode_save_rest << 29) \
151 | ((U)->region_desc << 27) \
152 | ((U)->save_sr << 25) \
153 | ((U)->entry_fr << 21) \
154 | ((U)->entry_gr << 16) \
155 | ((U)->args_stored << 15) \
156 | ((U)->call_fr << 10) \
157 | ((U)->call_gr << 5) \
158 | ((U)->save_sp << 4) \
159 | ((U)->save_rp << 3) \
160 | ((U)->save_rp_in_frame << 2) \
161 | ((U)->extn_ptr_defined << 1) \
162 | ((U)->cleanup_defined << 0))
164 #define UNWIND_HIGH32(U) \
165 (((U)->hpe_interrupt_marker << 31) \
166 | ((U)->hpux_interrupt_marker << 30) \
167 | ((U)->frame_size << 0))
171 /* Starting and ending offsets of the region described by
173 unsigned int start_offset
;
174 unsigned int end_offset
;
175 struct unwind_desc descriptor
;
178 /* This structure is used by the .callinfo, .enter, .leave pseudo-ops to
179 control the entry and exit code they generate. It is also used in
180 creation of the correct stack unwind descriptors.
182 NOTE: GAS does not support .enter and .leave for the generation of
183 prologues and epilogues. FIXME.
185 The fields in structure roughly correspond to the arguments available on the
186 .callinfo pseudo-op. */
190 /* The unwind descriptor being built. */
191 struct unwind_table ci_unwind
;
193 /* Name of this function. */
194 symbolS
*start_symbol
;
196 /* (temporary) symbol used to mark the end of this function. */
199 /* Next entry in the chain. */
200 struct call_info
*ci_next
;
203 /* Operand formats for FP instructions. Note not all FP instructions
204 allow all four formats to be used (for example fmpysub only allows
208 SGL
, DBL
, ILLEGAL_FMT
, QUAD
, W
, UW
, DW
, UDW
, QW
, UQW
212 /* This fully describes the symbol types which may be attached to
213 an EXPORT or IMPORT directive. Only SOM uses this formation
214 (ELF has no need for it). */
218 SYMBOL_TYPE_ABSOLUTE
,
222 SYMBOL_TYPE_MILLICODE
,
224 SYMBOL_TYPE_PRI_PROG
,
225 SYMBOL_TYPE_SEC_PROG
,
229 /* This structure contains information needed to assemble
230 individual instructions. */
233 /* Holds the opcode after parsing by pa_ip. */
234 unsigned long opcode
;
236 /* Holds an expression associated with the current instruction. */
239 /* Does this instruction use PC-relative addressing. */
242 /* Floating point formats for operand1 and operand2. */
243 fp_operand_format fpof1
;
244 fp_operand_format fpof2
;
246 /* Whether or not we saw a truncation request on an fcnv insn. */
249 /* Holds the field selector for this instruction
250 (for example L%, LR%, etc). */
253 /* Holds any argument relocation bits associated with this
254 instruction. (instruction should be some sort of call). */
255 unsigned int arg_reloc
;
257 /* The format specification for this instruction. */
260 /* The relocation (if any) associated with this instruction. */
264 /* PA-89 floating point registers are arranged like this:
266 +--------------+--------------+
267 | 0 or 16L | 16 or 16R |
268 +--------------+--------------+
269 | 1 or 17L | 17 or 17R |
270 +--------------+--------------+
278 +--------------+--------------+
279 | 14 or 30L | 30 or 30R |
280 +--------------+--------------+
281 | 15 or 31L | 31 or 31R |
282 +--------------+--------------+ */
284 /* Additional information needed to build argument relocation stubs. */
287 /* The argument relocation specification. */
288 unsigned int arg_reloc
;
290 /* Number of arguments. */
291 unsigned int arg_count
;
295 /* This structure defines an entry in the subspace dictionary
298 struct subspace_dictionary_chain
300 /* Nonzero if this space has been defined by the user code. */
301 unsigned int ssd_defined
;
303 /* Name of this subspace. */
306 /* GAS segment and subsegment associated with this subspace. */
310 /* Next space in the subspace dictionary chain. */
311 struct subspace_dictionary_chain
*ssd_next
;
314 typedef struct subspace_dictionary_chain ssd_chain_struct
;
316 /* This structure defines an entry in the subspace dictionary
319 struct space_dictionary_chain
321 /* Nonzero if this space has been defined by the user code or
322 as a default space. */
323 unsigned int sd_defined
;
325 /* Nonzero if this spaces has been defined by the user code. */
326 unsigned int sd_user_defined
;
328 /* The space number (or index). */
329 unsigned int sd_spnum
;
331 /* The name of this subspace. */
334 /* GAS segment to which this subspace corresponds. */
337 /* Current subsegment number being used. */
340 /* The chain of subspaces contained within this space. */
341 ssd_chain_struct
*sd_subspaces
;
343 /* The next entry in the space dictionary chain. */
344 struct space_dictionary_chain
*sd_next
;
347 typedef struct space_dictionary_chain sd_chain_struct
;
349 /* This structure defines attributes of the default subspace
350 dictionary entries. */
352 struct default_subspace_dict
354 /* Name of the subspace. */
357 /* FIXME. Is this still needed? */
360 /* Nonzero if this subspace is loadable. */
363 /* Nonzero if this subspace contains only code. */
366 /* Nonzero if this is a comdat subspace. */
369 /* Nonzero if this is a common subspace. */
372 /* Nonzero if this is a common subspace which allows symbols
373 to be multiply defined. */
376 /* Nonzero if this subspace should be zero filled. */
379 /* Sort key for this subspace. */
382 /* Access control bits for this subspace. Can represent RWX access
383 as well as privilege level changes for gateways. */
386 /* Index of containing space. */
389 /* Alignment (in bytes) of this subspace. */
392 /* Quadrant within space where this subspace should be loaded. */
395 /* An index into the default spaces array. */
398 /* Subsegment associated with this subspace. */
402 /* This structure defines attributes of the default space
403 dictionary entries. */
405 struct default_space_dict
407 /* Name of the space. */
410 /* Space number. It is possible to identify spaces within
411 assembly code numerically! */
414 /* Nonzero if this space is loadable. */
417 /* Nonzero if this space is "defined". FIXME is still needed */
420 /* Nonzero if this space can not be shared. */
423 /* Sort key for this space. */
426 /* Segment associated with this space. */
431 /* Structure for previous label tracking. Needed so that alignments,
432 callinfo declarations, etc can be easily attached to a particular
434 typedef struct label_symbol_struct
436 struct symbol
*lss_label
;
438 sd_chain_struct
*lss_space
;
443 struct label_symbol_struct
*lss_next
;
447 /* Extra information needed to perform fixups (relocations) on the PA. */
448 struct hppa_fix_struct
450 /* The field selector. */
451 enum hppa_reloc_field_selector_type_alt fx_r_field
;
456 /* Format of fixup. */
459 /* Argument relocation bits. */
460 unsigned int fx_arg_reloc
;
462 /* The segment this fixup appears in. */
466 /* Structure to hold information about predefined registers. */
474 /* This structure defines the mapping from a FP condition string
475 to a condition number which can be recorded in an instruction. */
482 /* This structure defines a mapping from a field selector
483 string to a field selector type. */
484 struct selector_entry
490 /* Prototypes for functions local to tc-hppa.c. */
493 static void pa_check_current_space_and_subspace (void);
496 #if !(defined (OBJ_ELF) && (defined (TE_LINUX) || defined (TE_NetBSD)))
497 static void pa_text (int);
498 static void pa_data (int);
499 static void pa_comm (int);
502 static int exact_log2 (int);
503 static void pa_compiler (int);
504 static void pa_align (int);
505 static void pa_space (int);
506 static void pa_spnum (int);
507 static void pa_subspace (int);
508 static sd_chain_struct
*create_new_space (char *, int, int,
511 static ssd_chain_struct
*create_new_subspace (sd_chain_struct
*,
516 static ssd_chain_struct
*update_subspace (sd_chain_struct
*,
517 char *, int, int, int,
521 static sd_chain_struct
*is_defined_space (char *);
522 static ssd_chain_struct
*is_defined_subspace (char *);
523 static sd_chain_struct
*pa_segment_to_space (asection
*);
524 static ssd_chain_struct
*pa_subsegment_to_subspace (asection
*,
526 static sd_chain_struct
*pa_find_space_by_number (int);
527 static unsigned int pa_subspace_start (sd_chain_struct
*, int);
528 static sd_chain_struct
*pa_parse_space_stmt (char *, int);
531 /* File and globally scoped variable declarations. */
534 /* Root and final entry in the space chain. */
535 static sd_chain_struct
*space_dict_root
;
536 static sd_chain_struct
*space_dict_last
;
538 /* The current space and subspace. */
539 static sd_chain_struct
*current_space
;
540 static ssd_chain_struct
*current_subspace
;
543 /* Root of the call_info chain. */
544 static struct call_info
*call_info_root
;
546 /* The last call_info (for functions) structure
547 seen so it can be associated with fixups and
549 static struct call_info
*last_call_info
;
551 /* The last call description (for actual calls). */
552 static struct call_desc last_call_desc
;
554 /* handle of the OPCODE hash table */
555 static struct hash_control
*op_hash
= NULL
;
557 /* These characters can be suffixes of opcode names and they may be
558 followed by meaningful whitespace. We don't include `,' and `!'
559 as they never appear followed by meaningful whitespace. */
560 const char hppa_symbol_chars
[] = "*?=<>";
562 /* This array holds the chars that only start a comment at the beginning of
563 a line. If the line seems to have the form '# 123 filename'
564 .line and .file directives will appear in the pre-processed output.
566 Note that input_file.c hand checks for '#' at the beginning of the
567 first line of the input file. This is because the compiler outputs
568 #NO_APP at the beginning of its output.
570 Also note that C style comments will always work. */
571 const char line_comment_chars
[] = "#";
573 /* This array holds the chars that always start a comment. If the
574 pre-processor is disabled, these aren't very useful. */
575 const char comment_chars
[] = ";";
577 /* This array holds the characters which act as line separators. */
578 const char line_separator_chars
[] = "!";
580 /* Chars that can be used to separate mant from exp in floating point nums. */
581 const char EXP_CHARS
[] = "eE";
583 /* Chars that mean this number is a floating point constant.
584 As in 0f12.456 or 0d1.2345e12.
586 Be aware that MAXIMUM_NUMBER_OF_CHARS_FOR_FLOAT may have to be
587 changed in read.c. Ideally it shouldn't hae to know abou it at
588 all, but nothing is ideal around here. */
589 const char FLT_CHARS
[] = "rRsSfFdDxXpP";
591 static struct pa_it the_insn
;
593 /* Points to the end of an expression just parsed by get_expression
594 and friends. FIXME. This shouldn't be handled with a file-global
596 static char *expr_end
;
598 /* Nonzero if a .callinfo appeared within the current procedure. */
599 static int callinfo_found
;
601 /* Nonzero if the assembler is currently within a .entry/.exit pair. */
602 static int within_entry_exit
;
604 /* Nonzero if the assembler is currently within a procedure definition. */
605 static int within_procedure
;
607 /* Handle on structure which keep track of the last symbol
608 seen in each subspace. */
609 static label_symbol_struct
*label_symbols_rootp
= NULL
;
611 /* Holds the last field selector. */
612 static int hppa_field_selector
;
614 /* Nonzero when strict matching is enabled. Zero otherwise.
616 Each opcode in the table has a flag which indicates whether or
617 not strict matching should be enabled for that instruction.
619 Mainly, strict causes errors to be ignored when a match failure
620 occurs. However, it also affects the parsing of register fields
621 by pa_parse_number. */
624 /* pa_parse_number returns values in `pa_number'. Mostly
625 pa_parse_number is used to return a register number, with floating
626 point registers being numbered from FP_REG_BASE upwards.
627 The bit specified with FP_REG_RSEL is set if the floating point
628 register has a `r' suffix. */
629 #define FP_REG_BASE 64
630 #define FP_REG_RSEL 128
631 static int pa_number
;
634 /* A dummy bfd symbol so that all relocations have symbols of some kind. */
635 static symbolS
*dummy_symbol
;
638 /* Nonzero if errors are to be printed. */
639 static int print_errors
= 1;
641 /* List of registers that are pre-defined:
643 Each general register has one predefined name of the form
644 %r<REGNUM> which has the value <REGNUM>.
646 Space and control registers are handled in a similar manner,
647 but use %sr<REGNUM> and %cr<REGNUM> as their predefined names.
649 Likewise for the floating point registers, but of the form
650 %fr<REGNUM>. Floating point registers have additional predefined
651 names with 'L' and 'R' suffixes (e.g. %fr19L, %fr19R) which
652 again have the value <REGNUM>.
654 Many registers also have synonyms:
656 %r26 - %r23 have %arg0 - %arg3 as synonyms
657 %r28 - %r29 have %ret0 - %ret1 as synonyms
658 %fr4 - %fr7 have %farg0 - %farg3 as synonyms
659 %r30 has %sp as a synonym
660 %r27 has %dp as a synonym
661 %r2 has %rp as a synonym
663 Almost every control register has a synonym; they are not listed
666 The table is sorted. Suitable for searching by a binary search. */
668 static const struct pd_reg pre_defined_registers
[] =
702 {"%farg0", 4 + FP_REG_BASE
},
703 {"%farg1", 5 + FP_REG_BASE
},
704 {"%farg2", 6 + FP_REG_BASE
},
705 {"%farg3", 7 + FP_REG_BASE
},
706 {"%fr0", 0 + FP_REG_BASE
},
707 {"%fr0l", 0 + FP_REG_BASE
},
708 {"%fr0r", 0 + FP_REG_BASE
+ FP_REG_RSEL
},
709 {"%fr1", 1 + FP_REG_BASE
},
710 {"%fr10", 10 + FP_REG_BASE
},
711 {"%fr10l", 10 + FP_REG_BASE
},
712 {"%fr10r", 10 + FP_REG_BASE
+ FP_REG_RSEL
},
713 {"%fr11", 11 + FP_REG_BASE
},
714 {"%fr11l", 11 + FP_REG_BASE
},
715 {"%fr11r", 11 + FP_REG_BASE
+ FP_REG_RSEL
},
716 {"%fr12", 12 + FP_REG_BASE
},
717 {"%fr12l", 12 + FP_REG_BASE
},
718 {"%fr12r", 12 + FP_REG_BASE
+ FP_REG_RSEL
},
719 {"%fr13", 13 + FP_REG_BASE
},
720 {"%fr13l", 13 + FP_REG_BASE
},
721 {"%fr13r", 13 + FP_REG_BASE
+ FP_REG_RSEL
},
722 {"%fr14", 14 + FP_REG_BASE
},
723 {"%fr14l", 14 + FP_REG_BASE
},
724 {"%fr14r", 14 + FP_REG_BASE
+ FP_REG_RSEL
},
725 {"%fr15", 15 + FP_REG_BASE
},
726 {"%fr15l", 15 + FP_REG_BASE
},
727 {"%fr15r", 15 + FP_REG_BASE
+ FP_REG_RSEL
},
728 {"%fr16", 16 + FP_REG_BASE
},
729 {"%fr16l", 16 + FP_REG_BASE
},
730 {"%fr16r", 16 + FP_REG_BASE
+ FP_REG_RSEL
},
731 {"%fr17", 17 + FP_REG_BASE
},
732 {"%fr17l", 17 + FP_REG_BASE
},
733 {"%fr17r", 17 + FP_REG_BASE
+ FP_REG_RSEL
},
734 {"%fr18", 18 + FP_REG_BASE
},
735 {"%fr18l", 18 + FP_REG_BASE
},
736 {"%fr18r", 18 + FP_REG_BASE
+ FP_REG_RSEL
},
737 {"%fr19", 19 + FP_REG_BASE
},
738 {"%fr19l", 19 + FP_REG_BASE
},
739 {"%fr19r", 19 + FP_REG_BASE
+ FP_REG_RSEL
},
740 {"%fr1l", 1 + FP_REG_BASE
},
741 {"%fr1r", 1 + FP_REG_BASE
+ FP_REG_RSEL
},
742 {"%fr2", 2 + FP_REG_BASE
},
743 {"%fr20", 20 + FP_REG_BASE
},
744 {"%fr20l", 20 + FP_REG_BASE
},
745 {"%fr20r", 20 + FP_REG_BASE
+ FP_REG_RSEL
},
746 {"%fr21", 21 + FP_REG_BASE
},
747 {"%fr21l", 21 + FP_REG_BASE
},
748 {"%fr21r", 21 + FP_REG_BASE
+ FP_REG_RSEL
},
749 {"%fr22", 22 + FP_REG_BASE
},
750 {"%fr22l", 22 + FP_REG_BASE
},
751 {"%fr22r", 22 + FP_REG_BASE
+ FP_REG_RSEL
},
752 {"%fr23", 23 + FP_REG_BASE
},
753 {"%fr23l", 23 + FP_REG_BASE
},
754 {"%fr23r", 23 + FP_REG_BASE
+ FP_REG_RSEL
},
755 {"%fr24", 24 + FP_REG_BASE
},
756 {"%fr24l", 24 + FP_REG_BASE
},
757 {"%fr24r", 24 + FP_REG_BASE
+ FP_REG_RSEL
},
758 {"%fr25", 25 + FP_REG_BASE
},
759 {"%fr25l", 25 + FP_REG_BASE
},
760 {"%fr25r", 25 + FP_REG_BASE
+ FP_REG_RSEL
},
761 {"%fr26", 26 + FP_REG_BASE
},
762 {"%fr26l", 26 + FP_REG_BASE
},
763 {"%fr26r", 26 + FP_REG_BASE
+ FP_REG_RSEL
},
764 {"%fr27", 27 + FP_REG_BASE
},
765 {"%fr27l", 27 + FP_REG_BASE
},
766 {"%fr27r", 27 + FP_REG_BASE
+ FP_REG_RSEL
},
767 {"%fr28", 28 + FP_REG_BASE
},
768 {"%fr28l", 28 + FP_REG_BASE
},
769 {"%fr28r", 28 + FP_REG_BASE
+ FP_REG_RSEL
},
770 {"%fr29", 29 + FP_REG_BASE
},
771 {"%fr29l", 29 + FP_REG_BASE
},
772 {"%fr29r", 29 + FP_REG_BASE
+ FP_REG_RSEL
},
773 {"%fr2l", 2 + FP_REG_BASE
},
774 {"%fr2r", 2 + FP_REG_BASE
+ FP_REG_RSEL
},
775 {"%fr3", 3 + FP_REG_BASE
},
776 {"%fr30", 30 + FP_REG_BASE
},
777 {"%fr30l", 30 + FP_REG_BASE
},
778 {"%fr30r", 30 + FP_REG_BASE
+ FP_REG_RSEL
},
779 {"%fr31", 31 + FP_REG_BASE
},
780 {"%fr31l", 31 + FP_REG_BASE
},
781 {"%fr31r", 31 + FP_REG_BASE
+ FP_REG_RSEL
},
782 {"%fr3l", 3 + FP_REG_BASE
},
783 {"%fr3r", 3 + FP_REG_BASE
+ FP_REG_RSEL
},
784 {"%fr4", 4 + FP_REG_BASE
},
785 {"%fr4l", 4 + FP_REG_BASE
},
786 {"%fr4r", 4 + FP_REG_BASE
+ FP_REG_RSEL
},
787 {"%fr5", 5 + FP_REG_BASE
},
788 {"%fr5l", 5 + FP_REG_BASE
},
789 {"%fr5r", 5 + FP_REG_BASE
+ FP_REG_RSEL
},
790 {"%fr6", 6 + FP_REG_BASE
},
791 {"%fr6l", 6 + FP_REG_BASE
},
792 {"%fr6r", 6 + FP_REG_BASE
+ FP_REG_RSEL
},
793 {"%fr7", 7 + FP_REG_BASE
},
794 {"%fr7l", 7 + FP_REG_BASE
},
795 {"%fr7r", 7 + FP_REG_BASE
+ FP_REG_RSEL
},
796 {"%fr8", 8 + FP_REG_BASE
},
797 {"%fr8l", 8 + FP_REG_BASE
},
798 {"%fr8r", 8 + FP_REG_BASE
+ FP_REG_RSEL
},
799 {"%fr9", 9 + FP_REG_BASE
},
800 {"%fr9l", 9 + FP_REG_BASE
},
801 {"%fr9r", 9 + FP_REG_BASE
+ FP_REG_RSEL
},
810 #if TARGET_ARCH_SIZE == 64
886 /* This table is sorted by order of the length of the string. This is
887 so we check for <> before we check for <. If we had a <> and checked
888 for < first, we would get a false match. */
889 static const struct fp_cond_map fp_cond_map
[] =
925 static const struct selector_entry selector_table
[] =
950 /* default space and subspace dictionaries */
952 #define GDB_SYMBOLS GDB_SYMBOLS_SUBSPACE_NAME
953 #define GDB_STRINGS GDB_STRINGS_SUBSPACE_NAME
955 /* pre-defined subsegments (subspaces) for the HPPA. */
956 #define SUBSEG_CODE 0
958 #define SUBSEG_MILLI 2
959 #define SUBSEG_DATA 0
961 #define SUBSEG_UNWIND 3
962 #define SUBSEG_GDB_STRINGS 0
963 #define SUBSEG_GDB_SYMBOLS 1
965 static struct default_subspace_dict pa_def_subspaces
[] =
967 {"$CODE$", 1, 1, 1, 0, 0, 0, 0, 24, 0x2c, 0, 8, 0, 0, SUBSEG_CODE
},
968 {"$DATA$", 1, 1, 0, 0, 0, 0, 0, 24, 0x1f, 1, 8, 1, 1, SUBSEG_DATA
},
969 {"$LIT$", 1, 1, 0, 0, 0, 0, 0, 16, 0x2c, 0, 8, 0, 0, SUBSEG_LIT
},
970 {"$MILLICODE$", 1, 1, 0, 0, 0, 0, 0, 8, 0x2c, 0, 8, 0, 0, SUBSEG_MILLI
},
971 {"$BSS$", 1, 1, 0, 0, 0, 0, 1, 80, 0x1f, 1, 8, 1, 1, SUBSEG_BSS
},
972 {NULL
, 0, 1, 0, 0, 0, 0, 0, 255, 0x1f, 0, 4, 0, 0, 0}
975 static struct default_space_dict pa_def_spaces
[] =
977 {"$TEXT$", 0, 1, 1, 0, 8, ASEC_NULL
},
978 {"$PRIVATE$", 1, 1, 1, 1, 16, ASEC_NULL
},
979 {NULL
, 0, 0, 0, 0, 0, ASEC_NULL
}
982 /* Misc local definitions used by the assembler. */
984 /* These macros are used to maintain spaces/subspaces. */
985 #define SPACE_DEFINED(space_chain) (space_chain)->sd_defined
986 #define SPACE_USER_DEFINED(space_chain) (space_chain)->sd_user_defined
987 #define SPACE_SPNUM(space_chain) (space_chain)->sd_spnum
988 #define SPACE_NAME(space_chain) (space_chain)->sd_name
990 #define SUBSPACE_DEFINED(ss_chain) (ss_chain)->ssd_defined
991 #define SUBSPACE_NAME(ss_chain) (ss_chain)->ssd_name
994 /* Return nonzero if the string pointed to by S potentially represents
995 a right or left half of a FP register */
996 #define IS_R_SELECT(S) (*(S) == 'R' || *(S) == 'r')
997 #define IS_L_SELECT(S) (*(S) == 'L' || *(S) == 'l')
999 /* Insert FIELD into OPCODE starting at bit START. Continue pa_ip
1000 main loop after insertion. */
1002 #define INSERT_FIELD_AND_CONTINUE(OPCODE, FIELD, START) \
1004 ((OPCODE) |= (FIELD) << (START)); \
1008 /* Simple range checking for FIELD against HIGH and LOW bounds.
1009 IGNORE is used to suppress the error message. */
1011 #define CHECK_FIELD(FIELD, HIGH, LOW, IGNORE) \
1013 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1016 as_bad (_("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1022 /* Variant of CHECK_FIELD for use in md_apply_fix and other places where
1023 the current file and line number are not valid. */
1025 #define CHECK_FIELD_WHERE(FIELD, HIGH, LOW, FILENAME, LINE) \
1027 if ((FIELD) > (HIGH) || (FIELD) < (LOW)) \
1029 as_bad_where ((FILENAME), (LINE), \
1030 _("Field out of range [%d..%d] (%d)."), (LOW), (HIGH), \
1036 /* Simple alignment checking for FIELD against ALIGN (a power of two).
1037 IGNORE is used to suppress the error message. */
1039 #define CHECK_ALIGN(FIELD, ALIGN, IGNORE) \
1041 if ((FIELD) & ((ALIGN) - 1)) \
1044 as_bad (_("Field not properly aligned [%d] (%d)."), (ALIGN), \
1050 #define is_DP_relative(exp) \
1051 ((exp).X_op == O_subtract \
1052 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$global$") == 0)
1054 #define is_PC_relative(exp) \
1055 ((exp).X_op == O_subtract \
1056 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$PIC_pcrel$0") == 0)
1058 #define is_tls_gdidx(exp) \
1059 ((exp).X_op == O_subtract \
1060 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_gdidx$") == 0)
1062 #define is_tls_ldidx(exp) \
1063 ((exp).X_op == O_subtract \
1064 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_ldidx$") == 0)
1066 #define is_tls_dtpoff(exp) \
1067 ((exp).X_op == O_subtract \
1068 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_dtpoff$") == 0)
1070 #define is_tls_ieoff(exp) \
1071 ((exp).X_op == O_subtract \
1072 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_ieoff$") == 0)
1074 #define is_tls_leoff(exp) \
1075 ((exp).X_op == O_subtract \
1076 && strcmp (S_GET_NAME ((exp).X_op_symbol), "$tls_leoff$") == 0)
1078 /* We need some complex handling for stabs (sym1 - sym2). Luckily, we'll
1079 always be able to reduce the expression to a constant, so we don't
1080 need real complex handling yet. */
1081 #define is_complex(exp) \
1082 ((exp).X_op != O_constant && (exp).X_op != O_symbol)
1084 /* Actual functions to implement the PA specific code for the assembler. */
1086 /* Called before writing the object file. Make sure entry/exit and
1087 proc/procend pairs match. */
1092 if (within_entry_exit
)
1093 as_fatal (_("Missing .exit\n"));
1095 if (within_procedure
)
1096 as_fatal (_("Missing .procend\n"));
1099 /* Returns a pointer to the label_symbol_struct for the current space.
1100 or NULL if no label_symbol_struct exists for the current space. */
1102 static label_symbol_struct
*
1105 label_symbol_struct
*label_chain
;
1107 for (label_chain
= label_symbols_rootp
;
1109 label_chain
= label_chain
->lss_next
)
1112 if (current_space
== label_chain
->lss_space
&& label_chain
->lss_label
)
1116 if (now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
)
1124 /* Defines a label for the current space. If one is already defined,
1125 this function will replace it with the new label. */
1128 pa_define_label (symbolS
*symbol
)
1130 label_symbol_struct
*label_chain
= pa_get_label ();
1133 label_chain
->lss_label
= symbol
;
1136 /* Create a new label entry and add it to the head of the chain. */
1137 label_chain
= xmalloc (sizeof (label_symbol_struct
));
1138 label_chain
->lss_label
= symbol
;
1140 label_chain
->lss_space
= current_space
;
1143 label_chain
->lss_segment
= now_seg
;
1145 label_chain
->lss_next
= NULL
;
1147 if (label_symbols_rootp
)
1148 label_chain
->lss_next
= label_symbols_rootp
;
1150 label_symbols_rootp
= label_chain
;
1154 dwarf2_emit_label (symbol
);
1158 /* Removes a label definition for the current space.
1159 If there is no label_symbol_struct entry, then no action is taken. */
1162 pa_undefine_label (void)
1164 label_symbol_struct
*label_chain
;
1165 label_symbol_struct
*prev_label_chain
= NULL
;
1167 for (label_chain
= label_symbols_rootp
;
1169 label_chain
= label_chain
->lss_next
)
1173 && current_space
== label_chain
->lss_space
&& label_chain
->lss_label
1176 && now_seg
== label_chain
->lss_segment
&& label_chain
->lss_label
1180 /* Remove the label from the chain and free its memory. */
1181 if (prev_label_chain
)
1182 prev_label_chain
->lss_next
= label_chain
->lss_next
;
1184 label_symbols_rootp
= label_chain
->lss_next
;
1189 prev_label_chain
= label_chain
;
1193 /* An HPPA-specific version of fix_new. This is required because the HPPA
1194 code needs to keep track of some extra stuff. Each call to fix_new_hppa
1195 results in the creation of an instance of an hppa_fix_struct. An
1196 hppa_fix_struct stores the extra information along with a pointer to the
1197 original fixS. This is attached to the original fixup via the
1198 tc_fix_data field. */
1201 fix_new_hppa (fragS
*frag
,
1204 symbolS
*add_symbol
,
1208 bfd_reloc_code_real_type r_type
,
1209 enum hppa_reloc_field_selector_type_alt r_field
,
1211 unsigned int arg_reloc
,
1212 int unwind_bits ATTRIBUTE_UNUSED
)
1215 struct hppa_fix_struct
*hppa_fix
= obstack_alloc (¬es
, sizeof (struct hppa_fix_struct
));
1218 new_fix
= fix_new_exp (frag
, where
, size
, exp
, pcrel
, r_type
);
1220 new_fix
= fix_new (frag
, where
, size
, add_symbol
, offset
, pcrel
, r_type
);
1221 new_fix
->tc_fix_data
= (void *) hppa_fix
;
1222 hppa_fix
->fx_r_type
= r_type
;
1223 hppa_fix
->fx_r_field
= r_field
;
1224 hppa_fix
->fx_r_format
= r_format
;
1225 hppa_fix
->fx_arg_reloc
= arg_reloc
;
1226 hppa_fix
->segment
= now_seg
;
1228 if (r_type
== R_ENTRY
|| r_type
== R_EXIT
)
1229 new_fix
->fx_offset
= unwind_bits
;
1232 /* foo-$global$ is used to access non-automatic storage. $global$
1233 is really just a marker and has served its purpose, so eliminate
1234 it now so as not to confuse write.c. Ditto for $PIC_pcrel$0. */
1235 if (new_fix
->fx_subsy
1236 && (strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$global$") == 0
1237 || strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$PIC_pcrel$0") == 0
1238 || strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$tls_gdidx$") == 0
1239 || strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$tls_ldidx$") == 0
1240 || strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$tls_dtpoff$") == 0
1241 || strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$tls_ieoff$") == 0
1242 || strcmp (S_GET_NAME (new_fix
->fx_subsy
), "$tls_leoff$") == 0))
1243 new_fix
->fx_subsy
= NULL
;
1246 /* This fix_new is called by cons via TC_CONS_FIX_NEW.
1247 hppa_field_selector is set by the parse_cons_expression_hppa. */
1250 cons_fix_new_hppa (fragS
*frag
, int where
, int size
, expressionS
*exp
)
1252 unsigned int rel_type
;
1254 /* Get a base relocation type. */
1255 if (is_DP_relative (*exp
))
1256 rel_type
= R_HPPA_GOTOFF
;
1257 else if (is_PC_relative (*exp
))
1258 rel_type
= R_HPPA_PCREL_CALL
;
1260 else if (is_tls_gdidx (*exp
))
1261 rel_type
= R_PARISC_TLS_GD21L
;
1262 else if (is_tls_ldidx (*exp
))
1263 rel_type
= R_PARISC_TLS_LDM21L
;
1264 else if (is_tls_dtpoff (*exp
))
1265 rel_type
= R_PARISC_TLS_LDO21L
;
1266 else if (is_tls_ieoff (*exp
))
1267 rel_type
= R_PARISC_TLS_IE21L
;
1268 else if (is_tls_leoff (*exp
))
1269 rel_type
= R_PARISC_TLS_LE21L
;
1271 else if (is_complex (*exp
))
1272 rel_type
= R_HPPA_COMPLEX
;
1276 if (hppa_field_selector
!= e_psel
&& hppa_field_selector
!= e_fsel
)
1278 as_warn (_("Invalid field selector. Assuming F%%."));
1279 hppa_field_selector
= e_fsel
;
1282 fix_new_hppa (frag
, where
, size
,
1283 (symbolS
*) NULL
, (offsetT
) 0, exp
, 0, rel_type
,
1284 hppa_field_selector
, size
* 8, 0, 0);
1286 /* Reset field selector to its default state. */
1287 hppa_field_selector
= 0;
1290 /* Mark (via expr_end) the end of an expression (I think). FIXME. */
1293 get_expression (char *str
)
1298 save_in
= input_line_pointer
;
1299 input_line_pointer
= str
;
1300 seg
= expression (&the_insn
.exp
);
1301 if (!(seg
== absolute_section
1302 || seg
== undefined_section
1303 || SEG_NORMAL (seg
)))
1305 as_warn (_("Bad segment in expression."));
1306 expr_end
= input_line_pointer
;
1307 input_line_pointer
= save_in
;
1310 expr_end
= input_line_pointer
;
1311 input_line_pointer
= save_in
;
1314 /* Parse a PA nullification completer (,n). Return nonzero if the
1315 completer was found; return zero if no completer was found. */
1318 pa_parse_nullif (char **s
)
1326 if (strncasecmp (*s
, "n", 1) == 0)
1330 as_bad (_("Invalid Nullification: (%c)"), **s
);
1339 /* Turn a string in input_line_pointer into a floating point constant of type
1340 type, and store the appropriate bytes in *litP. The number of LITTLENUMS
1341 emitted is stored in *sizeP . An error message or NULL is returned. */
1343 #define MAX_LITTLENUMS 6
1346 md_atof (int type
, char *litP
, int *sizeP
)
1349 LITTLENUM_TYPE words
[MAX_LITTLENUMS
];
1350 LITTLENUM_TYPE
*wordP
;
1382 return _("Bad call to MD_ATOF()");
1384 t
= atof_ieee (input_line_pointer
, type
, words
);
1386 input_line_pointer
= t
;
1387 *sizeP
= prec
* sizeof (LITTLENUM_TYPE
);
1388 for (wordP
= words
; prec
--;)
1390 md_number_to_chars (litP
, (valueT
) (*wordP
++), sizeof (LITTLENUM_TYPE
));
1391 litP
+= sizeof (LITTLENUM_TYPE
);
1396 /* Write out big-endian. */
1399 md_number_to_chars (char *buf
, valueT val
, int n
)
1401 number_to_chars_bigendian (buf
, val
, n
);
1404 /* Translate internal representation of relocation info to BFD target
1408 tc_gen_reloc (asection
*section
, fixS
*fixp
)
1411 struct hppa_fix_struct
*hppa_fixp
;
1412 static arelent
*no_relocs
= NULL
;
1419 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
1420 if (fixp
->fx_addsy
== 0)
1423 assert (hppa_fixp
!= 0);
1424 assert (section
!= 0);
1426 reloc
= xmalloc (sizeof (arelent
));
1428 reloc
->sym_ptr_ptr
= xmalloc (sizeof (asymbol
*));
1429 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
1430 codes
= hppa_gen_reloc_type (stdoutput
,
1432 hppa_fixp
->fx_r_format
,
1433 hppa_fixp
->fx_r_field
,
1434 fixp
->fx_subsy
!= NULL
,
1435 symbol_get_bfdsym (fixp
->fx_addsy
));
1439 as_bad_where (fixp
->fx_file
, fixp
->fx_line
, _("Cannot handle fixup"));
1443 for (n_relocs
= 0; codes
[n_relocs
]; n_relocs
++)
1446 relocs
= xmalloc (sizeof (arelent
*) * n_relocs
+ 1);
1447 reloc
= xmalloc (sizeof (arelent
) * n_relocs
);
1448 for (i
= 0; i
< n_relocs
; i
++)
1449 relocs
[i
] = &reloc
[i
];
1451 relocs
[n_relocs
] = NULL
;
1454 switch (fixp
->fx_r_type
)
1457 assert (n_relocs
== 1);
1461 /* Now, do any processing that is dependent on the relocation type. */
1464 case R_PARISC_DLTREL21L
:
1465 case R_PARISC_DLTREL14R
:
1466 case R_PARISC_DLTREL14F
:
1467 case R_PARISC_PLABEL32
:
1468 case R_PARISC_PLABEL21L
:
1469 case R_PARISC_PLABEL14R
:
1470 /* For plabel relocations, the addend of the
1471 relocation should be either 0 (no static link) or 2
1472 (static link required). This adjustment is done in
1473 bfd/elf32-hppa.c:elf32_hppa_relocate_section.
1475 We also slam a zero addend into the DLT relative relocs;
1476 it doesn't make a lot of sense to use any addend since
1477 it gets you a different (eg unknown) DLT entry. */
1481 #ifdef ELF_ARG_RELOC
1482 case R_PARISC_PCREL17R
:
1483 case R_PARISC_PCREL17F
:
1484 case R_PARISC_PCREL17C
:
1485 case R_PARISC_DIR17R
:
1486 case R_PARISC_DIR17F
:
1487 case R_PARISC_PCREL21L
:
1488 case R_PARISC_DIR21L
:
1489 reloc
->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
,
1494 case R_PARISC_DIR32
:
1495 /* Facilitate hand-crafted unwind info. */
1496 if (strcmp (section
->name
, UNWIND_SECTION_NAME
) == 0)
1497 code
= R_PARISC_SEGREL32
;
1501 reloc
->addend
= fixp
->fx_offset
;
1505 reloc
->sym_ptr_ptr
= xmalloc (sizeof (asymbol
*));
1506 *reloc
->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
1507 reloc
->howto
= bfd_reloc_type_lookup (stdoutput
,
1508 (bfd_reloc_code_real_type
) code
);
1509 reloc
->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
1511 assert (reloc
->howto
&& (unsigned int) code
== reloc
->howto
->type
);
1516 /* Walk over reach relocation returned by the BFD backend. */
1517 for (i
= 0; i
< n_relocs
; i
++)
1521 relocs
[i
]->sym_ptr_ptr
= xmalloc (sizeof (asymbol
*));
1522 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
1524 bfd_reloc_type_lookup (stdoutput
,
1525 (bfd_reloc_code_real_type
) code
);
1526 relocs
[i
]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
1531 /* The only time we ever use a R_COMP2 fixup is for the difference
1532 of two symbols. With that in mind we fill in all four
1533 relocs now and break out of the loop. */
1535 relocs
[0]->sym_ptr_ptr
1536 = (asymbol
**) bfd_abs_section_ptr
->symbol_ptr_ptr
;
1538 = bfd_reloc_type_lookup (stdoutput
,
1539 (bfd_reloc_code_real_type
) *codes
[0]);
1540 relocs
[0]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
1541 relocs
[0]->addend
= 0;
1542 relocs
[1]->sym_ptr_ptr
= xmalloc (sizeof (asymbol
*));
1543 *relocs
[1]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_addsy
);
1545 = bfd_reloc_type_lookup (stdoutput
,
1546 (bfd_reloc_code_real_type
) *codes
[1]);
1547 relocs
[1]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
1548 relocs
[1]->addend
= 0;
1549 relocs
[2]->sym_ptr_ptr
= xmalloc (sizeof (asymbol
*));
1550 *relocs
[2]->sym_ptr_ptr
= symbol_get_bfdsym (fixp
->fx_subsy
);
1552 = bfd_reloc_type_lookup (stdoutput
,
1553 (bfd_reloc_code_real_type
) *codes
[2]);
1554 relocs
[2]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
1555 relocs
[2]->addend
= 0;
1556 relocs
[3]->sym_ptr_ptr
1557 = (asymbol
**) bfd_abs_section_ptr
->symbol_ptr_ptr
;
1559 = bfd_reloc_type_lookup (stdoutput
,
1560 (bfd_reloc_code_real_type
) *codes
[3]);
1561 relocs
[3]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
1562 relocs
[3]->addend
= 0;
1563 relocs
[4]->sym_ptr_ptr
1564 = (asymbol
**) bfd_abs_section_ptr
->symbol_ptr_ptr
;
1566 = bfd_reloc_type_lookup (stdoutput
,
1567 (bfd_reloc_code_real_type
) *codes
[4]);
1568 relocs
[4]->address
= fixp
->fx_frag
->fr_address
+ fixp
->fx_where
;
1569 relocs
[4]->addend
= 0;
1573 relocs
[i
]->addend
= HPPA_R_ADDEND (hppa_fixp
->fx_arg_reloc
, 0);
1579 /* For plabel relocations, the addend of the
1580 relocation should be either 0 (no static link) or 2
1581 (static link required).
1583 FIXME: We always assume no static link!
1585 We also slam a zero addend into the DLT relative relocs;
1586 it doesn't make a lot of sense to use any addend since
1587 it gets you a different (eg unknown) DLT entry. */
1588 relocs
[i
]->addend
= 0;
1603 /* There is no symbol or addend associated with these fixups. */
1604 relocs
[i
]->sym_ptr_ptr
= xmalloc (sizeof (asymbol
*));
1605 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
1606 relocs
[i
]->addend
= 0;
1612 /* There is no symbol associated with these fixups. */
1613 relocs
[i
]->sym_ptr_ptr
= xmalloc (sizeof (asymbol
*));
1614 *relocs
[i
]->sym_ptr_ptr
= symbol_get_bfdsym (dummy_symbol
);
1615 relocs
[i
]->addend
= fixp
->fx_offset
;
1619 relocs
[i
]->addend
= fixp
->fx_offset
;
1629 /* Process any machine dependent frag types. */
1632 md_convert_frag (bfd
*abfd ATTRIBUTE_UNUSED
,
1633 asection
*sec ATTRIBUTE_UNUSED
,
1636 unsigned int address
;
1638 if (fragP
->fr_type
== rs_machine_dependent
)
1640 switch ((int) fragP
->fr_subtype
)
1643 fragP
->fr_type
= rs_fill
;
1644 know (fragP
->fr_var
== 1);
1645 know (fragP
->fr_next
);
1646 address
= fragP
->fr_address
+ fragP
->fr_fix
;
1647 if (address
% fragP
->fr_offset
)
1650 fragP
->fr_next
->fr_address
1655 fragP
->fr_offset
= 0;
1661 /* Round up a section size to the appropriate boundary. */
1664 md_section_align (asection
*segment
, valueT size
)
1666 int align
= bfd_get_section_alignment (stdoutput
, segment
);
1667 int align2
= (1 << align
) - 1;
1669 return (size
+ align2
) & ~align2
;
1672 /* Return the approximate size of a frag before relaxation has occurred. */
1675 md_estimate_size_before_relax (fragS
*fragP
, asection
*segment ATTRIBUTE_UNUSED
)
1681 while ((fragP
->fr_fix
+ size
) % fragP
->fr_offset
)
1688 # ifdef WARN_COMMENTS
1689 const char *md_shortopts
= "Vc";
1691 const char *md_shortopts
= "V";
1694 # ifdef WARN_COMMENTS
1695 const char *md_shortopts
= "c";
1697 const char *md_shortopts
= "";
1701 struct option md_longopts
[] =
1703 #ifdef WARN_COMMENTS
1704 {"warn-comment", no_argument
, NULL
, 'c'},
1706 {NULL
, no_argument
, NULL
, 0}
1708 size_t md_longopts_size
= sizeof (md_longopts
);
1711 md_parse_option (int c
, char *arg ATTRIBUTE_UNUSED
)
1720 print_version_id ();
1723 #ifdef WARN_COMMENTS
1734 md_show_usage (FILE *stream ATTRIBUTE_UNUSED
)
1737 fprintf (stream
, _("\
1740 #ifdef WARN_COMMENTS
1741 fprintf (stream
, _("\
1742 -c print a warning if a comment is found\n"));
1746 /* We have no need to default values of symbols. */
1749 md_undefined_symbol (char *name ATTRIBUTE_UNUSED
)
1754 #if defined (OBJ_SOM) || defined (ELF_ARG_RELOC)
1755 #define nonzero_dibits(x) \
1756 ((x) | (((x) & 0x55555555) << 1) | (((x) & 0xAAAAAAAA) >> 1))
1757 #define arg_reloc_stub_needed(CALLER, CALLEE) \
1758 (((CALLER) ^ (CALLEE)) & nonzero_dibits (CALLER) & nonzero_dibits (CALLEE))
1760 #define arg_reloc_stub_needed(CALLER, CALLEE) 0
1763 /* Apply a fixup to an instruction. */
1766 md_apply_fix (fixS
*fixP
, valueT
*valP
, segT seg ATTRIBUTE_UNUSED
)
1769 struct hppa_fix_struct
*hppa_fixP
;
1773 /* SOM uses R_HPPA_ENTRY and R_HPPA_EXIT relocations which can
1774 never be "applied" (they are just markers). Likewise for
1775 R_HPPA_BEGIN_BRTAB and R_HPPA_END_BRTAB. */
1777 if (fixP
->fx_r_type
== R_HPPA_ENTRY
1778 || fixP
->fx_r_type
== R_HPPA_EXIT
1779 || fixP
->fx_r_type
== R_HPPA_BEGIN_BRTAB
1780 || fixP
->fx_r_type
== R_HPPA_END_BRTAB
1781 || fixP
->fx_r_type
== R_HPPA_BEGIN_TRY
)
1784 /* Disgusting. We must set fx_offset ourselves -- R_HPPA_END_TRY
1785 fixups are considered not adjustable, which in turn causes
1786 adjust_reloc_syms to not set fx_offset. Ugh. */
1787 if (fixP
->fx_r_type
== R_HPPA_END_TRY
)
1789 fixP
->fx_offset
= * valP
;
1794 if (fixP
->fx_r_type
== (int) R_PARISC_GNU_VTENTRY
1795 || fixP
->fx_r_type
== (int) R_PARISC_GNU_VTINHERIT
)
1799 if (fixP
->fx_addsy
== NULL
&& fixP
->fx_pcrel
== 0)
1802 /* There should be a HPPA specific fixup associated with the GAS fixup. */
1803 hppa_fixP
= (struct hppa_fix_struct
*) fixP
->tc_fix_data
;
1804 if (hppa_fixP
== NULL
)
1806 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
1807 _("no hppa_fixup entry for fixup type 0x%x"),
1812 fixpos
= fixP
->fx_frag
->fr_literal
+ fixP
->fx_where
;
1814 if (fixP
->fx_size
!= 4 || hppa_fixP
->fx_r_format
== 32)
1816 /* Handle constant output. */
1817 number_to_chars_bigendian (fixpos
, *valP
, fixP
->fx_size
);
1821 insn
= bfd_get_32 (stdoutput
, fixpos
);
1822 fmt
= bfd_hppa_insn2fmt (stdoutput
, insn
);
1824 /* If there is a symbol associated with this fixup, then it's something
1825 which will need a SOM relocation (except for some PC-relative relocs).
1826 In such cases we should treat the "val" or "addend" as zero since it
1827 will be added in as needed from fx_offset in tc_gen_reloc. */
1828 if ((fixP
->fx_addsy
!= NULL
1829 || fixP
->fx_r_type
== (int) R_HPPA_NONE
)
1834 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
1836 /* These field selectors imply that we do not want an addend. */
1837 else if (hppa_fixP
->fx_r_field
== e_psel
1838 || hppa_fixP
->fx_r_field
== e_rpsel
1839 || hppa_fixP
->fx_r_field
== e_lpsel
1840 || hppa_fixP
->fx_r_field
== e_tsel
1841 || hppa_fixP
->fx_r_field
== e_rtsel
1842 || hppa_fixP
->fx_r_field
== e_ltsel
)
1843 new_val
= ((fmt
== 12 || fmt
== 17 || fmt
== 22) ? 8 : 0);
1846 new_val
= hppa_field_adjust (* valP
, 0, hppa_fixP
->fx_r_field
);
1848 /* Handle pc-relative exceptions from above. */
1849 if ((fmt
== 12 || fmt
== 17 || fmt
== 22)
1852 && !arg_reloc_stub_needed (symbol_arg_reloc_info (fixP
->fx_addsy
),
1853 hppa_fixP
->fx_arg_reloc
)
1855 && (* valP
- 8 + 8192 < 16384
1856 || (fmt
== 17 && * valP
- 8 + 262144 < 524288)
1857 || (fmt
== 22 && * valP
- 8 + 8388608 < 16777216))
1860 && (* valP
- 8 + 262144 < 524288
1861 || (fmt
== 22 && * valP
- 8 + 8388608 < 16777216))
1863 && !S_IS_EXTERNAL (fixP
->fx_addsy
)
1864 && !S_IS_WEAK (fixP
->fx_addsy
)
1865 && S_GET_SEGMENT (fixP
->fx_addsy
) == hppa_fixP
->segment
1867 && S_GET_SEGMENT (fixP
->fx_subsy
) != hppa_fixP
->segment
))
1869 new_val
= hppa_field_adjust (* valP
, 0, hppa_fixP
->fx_r_field
);
1875 CHECK_FIELD_WHERE (new_val
, 8191, -8192,
1876 fixP
->fx_file
, fixP
->fx_line
);
1879 insn
= (insn
& ~ 0x3ff1) | (((val
& 0x1ff8) << 1)
1880 | ((val
& 0x2000) >> 13));
1883 CHECK_FIELD_WHERE (new_val
, 8191, -8192,
1884 fixP
->fx_file
, fixP
->fx_line
);
1887 insn
= (insn
& ~ 0x3ff9) | (((val
& 0x1ffc) << 1)
1888 | ((val
& 0x2000) >> 13));
1890 /* Handle all opcodes with the 'j' operand type. */
1892 CHECK_FIELD_WHERE (new_val
, 8191, -8192,
1893 fixP
->fx_file
, fixP
->fx_line
);
1896 insn
= ((insn
& ~ 0x3fff) | low_sign_unext (val
, 14));
1899 /* Handle all opcodes with the 'k' operand type. */
1901 CHECK_FIELD_WHERE (new_val
, 1048575, -1048576,
1902 fixP
->fx_file
, fixP
->fx_line
);
1905 insn
= (insn
& ~ 0x1fffff) | re_assemble_21 (val
);
1908 /* Handle all the opcodes with the 'i' operand type. */
1910 CHECK_FIELD_WHERE (new_val
, 1023, -1024,
1911 fixP
->fx_file
, fixP
->fx_line
);
1914 insn
= (insn
& ~ 0x7ff) | low_sign_unext (val
, 11);
1917 /* Handle all the opcodes with the 'w' operand type. */
1919 CHECK_FIELD_WHERE (new_val
- 8, 8191, -8192,
1920 fixP
->fx_file
, fixP
->fx_line
);
1923 insn
= (insn
& ~ 0x1ffd) | re_assemble_12 (val
>> 2);
1926 /* Handle some of the opcodes with the 'W' operand type. */
1929 offsetT distance
= * valP
;
1931 /* If this is an absolute branch (ie no link) with an out of
1932 range target, then we want to complain. */
1933 if (fixP
->fx_r_type
== (int) R_HPPA_PCREL_CALL
1934 && (insn
& 0xffe00000) == 0xe8000000)
1935 CHECK_FIELD_WHERE (distance
- 8, 262143, -262144,
1936 fixP
->fx_file
, fixP
->fx_line
);
1938 CHECK_FIELD_WHERE (new_val
- 8, 262143, -262144,
1939 fixP
->fx_file
, fixP
->fx_line
);
1942 insn
= (insn
& ~ 0x1f1ffd) | re_assemble_17 (val
>> 2);
1948 offsetT distance
= * valP
;
1950 /* If this is an absolute branch (ie no link) with an out of
1951 range target, then we want to complain. */
1952 if (fixP
->fx_r_type
== (int) R_HPPA_PCREL_CALL
1953 && (insn
& 0xffe00000) == 0xe8000000)
1954 CHECK_FIELD_WHERE (distance
- 8, 8388607, -8388608,
1955 fixP
->fx_file
, fixP
->fx_line
);
1957 CHECK_FIELD_WHERE (new_val
- 8, 8388607, -8388608,
1958 fixP
->fx_file
, fixP
->fx_line
);
1961 insn
= (insn
& ~ 0x3ff1ffd) | re_assemble_22 (val
>> 2);
1967 insn
= (insn
& ~ 0xfff1) | re_assemble_16 (val
& -8);
1972 insn
= (insn
& ~ 0xfff9) | re_assemble_16 (val
& -4);
1977 insn
= (insn
& ~ 0xffff) | re_assemble_16 (val
);
1985 as_bad_where (fixP
->fx_file
, fixP
->fx_line
,
1986 _("Unknown relocation encountered in md_apply_fix."));
1991 switch (fixP
->fx_r_type
)
1993 case R_PARISC_TLS_GD21L
:
1994 case R_PARISC_TLS_GD14R
:
1995 case R_PARISC_TLS_LDM21L
:
1996 case R_PARISC_TLS_LDM14R
:
1997 case R_PARISC_TLS_LE21L
:
1998 case R_PARISC_TLS_LE14R
:
1999 case R_PARISC_TLS_IE21L
:
2000 case R_PARISC_TLS_IE14R
:
2002 S_SET_THREAD_LOCAL (fixP
->fx_addsy
);
2009 /* Insert the relocation. */
2010 bfd_put_32 (stdoutput
, insn
, fixpos
);
2013 /* Exactly what point is a PC-relative offset relative TO?
2014 On the PA, they're relative to the address of the offset. */
2017 md_pcrel_from (fixS
*fixP
)
2019 return fixP
->fx_where
+ fixP
->fx_frag
->fr_address
;
2022 /* Return nonzero if the input line pointer is at the end of
2026 is_end_of_statement (void)
2028 return ((*input_line_pointer
== '\n')
2029 || (*input_line_pointer
== ';')
2030 || (*input_line_pointer
== '!'));
2033 #define REG_NAME_CNT (sizeof (pre_defined_registers) / sizeof (struct pd_reg))
2035 /* Given NAME, find the register number associated with that name, return
2036 the integer value associated with the given name or -1 on failure. */
2039 reg_name_search (char *name
)
2041 int middle
, low
, high
;
2045 high
= REG_NAME_CNT
- 1;
2049 middle
= (low
+ high
) / 2;
2050 cmp
= strcasecmp (name
, pre_defined_registers
[middle
].name
);
2056 return pre_defined_registers
[middle
].value
;
2058 while (low
<= high
);
2063 /* Read a number from S. The number might come in one of many forms,
2064 the most common will be a hex or decimal constant, but it could be
2065 a pre-defined register (Yuk!), or an absolute symbol.
2067 Return 1 on success or 0 on failure. If STRICT, then a missing
2068 register prefix will cause a failure. The number itself is
2069 returned in `pa_number'.
2071 IS_FLOAT indicates that a PA-89 FP register number should be
2072 parsed; A `l' or `r' suffix is checked for if but 2 of IS_FLOAT is
2075 pa_parse_number can not handle negative constants and will fail
2076 horribly if it is passed such a constant. */
2079 pa_parse_number (char **s
, int is_float
)
2087 bfd_boolean have_prefix
;
2089 /* Skip whitespace before the number. */
2090 while (*p
== ' ' || *p
== '\t')
2096 if (!strict
&& ISDIGIT (*p
))
2098 /* Looks like a number. */
2100 if (*p
== '0' && (*(p
+ 1) == 'x' || *(p
+ 1) == 'X'))
2102 /* The number is specified in hex. */
2104 while (ISDIGIT (*p
) || ((*p
>= 'a') && (*p
<= 'f'))
2105 || ((*p
>= 'A') && (*p
<= 'F')))
2108 num
= num
* 16 + *p
- '0';
2109 else if (*p
>= 'a' && *p
<= 'f')
2110 num
= num
* 16 + *p
- 'a' + 10;
2112 num
= num
* 16 + *p
- 'A' + 10;
2118 /* The number is specified in decimal. */
2119 while (ISDIGIT (*p
))
2121 num
= num
* 10 + *p
- '0';
2128 /* Check for a `l' or `r' suffix. */
2131 pa_number
+= FP_REG_BASE
;
2132 if (! (is_float
& 2))
2134 if (IS_R_SELECT (p
))
2136 pa_number
+= FP_REG_RSEL
;
2139 else if (IS_L_SELECT (p
))
2148 /* The number might be a predefined register. */
2153 /* Tege hack: Special case for general registers as the general
2154 code makes a binary search with case translation, and is VERY
2159 if (*p
== 'e' && *(p
+ 1) == 't'
2160 && (*(p
+ 2) == '0' || *(p
+ 2) == '1'))
2163 num
= *p
- '0' + 28;
2171 else if (!ISDIGIT (*p
))
2174 as_bad (_("Undefined register: '%s'."), name
);
2180 num
= num
* 10 + *p
++ - '0';
2181 while (ISDIGIT (*p
));
2186 /* Do a normal register search. */
2187 while (is_part_of_name (c
))
2193 status
= reg_name_search (name
);
2199 as_bad (_("Undefined register: '%s'."), name
);
2209 /* And finally, it could be a symbol in the absolute section which
2210 is effectively a constant, or a register alias symbol. */
2213 while (is_part_of_name (c
))
2219 if ((sym
= symbol_find (name
)) != NULL
)
2221 if (S_GET_SEGMENT (sym
) == reg_section
)
2223 num
= S_GET_VALUE (sym
);
2224 /* Well, we don't really have one, but we do have a
2228 else if (S_GET_SEGMENT (sym
) == &bfd_abs_section
)
2229 num
= S_GET_VALUE (sym
);
2233 as_bad (_("Non-absolute symbol: '%s'."), name
);
2239 /* There is where we'd come for an undefined symbol
2240 or for an empty string. For an empty string we
2241 will return zero. That's a concession made for
2242 compatibility with the braindamaged HP assemblers. */
2248 as_bad (_("Undefined absolute constant: '%s'."), name
);
2257 if (!strict
|| have_prefix
)
2265 /* Return nonzero if the given INSN and L/R information will require
2266 a new PA-1.1 opcode. */
2269 need_pa11_opcode (void)
2271 if ((pa_number
& FP_REG_RSEL
) != 0
2272 && !(the_insn
.fpof1
== DBL
&& the_insn
.fpof2
== DBL
))
2274 /* If this instruction is specific to a particular architecture,
2275 then set a new architecture. */
2276 if (bfd_get_mach (stdoutput
) < pa11
)
2278 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, pa11
))
2279 as_warn (_("could not update architecture and machine"));
2287 /* Parse a condition for a fcmp instruction. Return the numerical
2288 code associated with the condition. */
2291 pa_parse_fp_cmp_cond (char **s
)
2297 for (i
= 0; i
< 32; i
++)
2299 if (strncasecmp (*s
, fp_cond_map
[i
].string
,
2300 strlen (fp_cond_map
[i
].string
)) == 0)
2302 cond
= fp_cond_map
[i
].cond
;
2303 *s
+= strlen (fp_cond_map
[i
].string
);
2304 /* If not a complete match, back up the input string and
2306 if (**s
!= ' ' && **s
!= '\t')
2308 *s
-= strlen (fp_cond_map
[i
].string
);
2311 while (**s
== ' ' || **s
== '\t')
2317 as_bad (_("Invalid FP Compare Condition: %s"), *s
);
2319 /* Advance over the bogus completer. */
2320 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
2326 /* Parse a graphics test complete for ftest. */
2329 pa_parse_ftest_gfx_completer (char **s
)
2334 if (strncasecmp (*s
, "acc8", 4) == 0)
2339 else if (strncasecmp (*s
, "acc6", 4) == 0)
2344 else if (strncasecmp (*s
, "acc4", 4) == 0)
2349 else if (strncasecmp (*s
, "acc2", 4) == 0)
2354 else if (strncasecmp (*s
, "acc", 3) == 0)
2359 else if (strncasecmp (*s
, "rej8", 4) == 0)
2364 else if (strncasecmp (*s
, "rej", 3) == 0)
2372 as_bad (_("Invalid FTEST completer: %s"), *s
);
2378 /* Parse an FP operand format completer returning the completer
2381 static fp_operand_format
2382 pa_parse_fp_cnv_format (char **s
)
2390 if (strncasecmp (*s
, "sgl", 3) == 0)
2395 else if (strncasecmp (*s
, "dbl", 3) == 0)
2400 else if (strncasecmp (*s
, "quad", 4) == 0)
2405 else if (strncasecmp (*s
, "w", 1) == 0)
2410 else if (strncasecmp (*s
, "uw", 2) == 0)
2415 else if (strncasecmp (*s
, "dw", 2) == 0)
2420 else if (strncasecmp (*s
, "udw", 3) == 0)
2425 else if (strncasecmp (*s
, "qw", 2) == 0)
2430 else if (strncasecmp (*s
, "uqw", 3) == 0)
2437 format
= ILLEGAL_FMT
;
2438 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
2445 /* Parse an FP operand format completer returning the completer
2448 static fp_operand_format
2449 pa_parse_fp_format (char **s
)
2457 if (strncasecmp (*s
, "sgl", 3) == 0)
2462 else if (strncasecmp (*s
, "dbl", 3) == 0)
2467 else if (strncasecmp (*s
, "quad", 4) == 0)
2474 format
= ILLEGAL_FMT
;
2475 as_bad (_("Invalid FP Operand Format: %3s"), *s
);
2482 /* Convert from a selector string into a selector type. */
2485 pa_chk_field_selector (char **str
)
2487 int middle
, low
, high
;
2491 /* Read past any whitespace. */
2492 /* FIXME: should we read past newlines and formfeeds??? */
2493 while (**str
== ' ' || **str
== '\t' || **str
== '\n' || **str
== '\f')
2496 if ((*str
)[1] == '\'' || (*str
)[1] == '%')
2497 name
[0] = TOLOWER ((*str
)[0]),
2499 else if ((*str
)[2] == '\'' || (*str
)[2] == '%')
2500 name
[0] = TOLOWER ((*str
)[0]),
2501 name
[1] = TOLOWER ((*str
)[1]),
2503 else if ((*str
)[3] == '\'' || (*str
)[3] == '%')
2504 name
[0] = TOLOWER ((*str
)[0]),
2505 name
[1] = TOLOWER ((*str
)[1]),
2506 name
[2] = TOLOWER ((*str
)[2]),
2512 high
= sizeof (selector_table
) / sizeof (struct selector_entry
) - 1;
2516 middle
= (low
+ high
) / 2;
2517 cmp
= strcmp (name
, selector_table
[middle
].prefix
);
2524 *str
+= strlen (name
) + 1;
2526 if (selector_table
[middle
].field_selector
== e_nsel
)
2529 return selector_table
[middle
].field_selector
;
2532 while (low
<= high
);
2537 /* Parse a .byte, .word, .long expression for the HPPA. Called by
2538 cons via the TC_PARSE_CONS_EXPRESSION macro. */
2541 parse_cons_expression_hppa (expressionS
*exp
)
2543 hppa_field_selector
= pa_chk_field_selector (&input_line_pointer
);
2547 /* Evaluate an absolute expression EXP which may be modified by
2548 the selector FIELD_SELECTOR. Return the value of the expression. */
2550 evaluate_absolute (struct pa_it
*insn
)
2554 int field_selector
= insn
->field_selector
;
2557 value
= exp
.X_add_number
;
2559 return hppa_field_adjust (0, value
, field_selector
);
2562 /* Mark (via expr_end) the end of an absolute expression. FIXME. */
2565 pa_get_absolute_expression (struct pa_it
*insn
, char **strp
)
2569 insn
->field_selector
= pa_chk_field_selector (strp
);
2570 save_in
= input_line_pointer
;
2571 input_line_pointer
= *strp
;
2572 expression (&insn
->exp
);
2573 /* This is not perfect, but is a huge improvement over doing nothing.
2575 The PA assembly syntax is ambiguous in a variety of ways. Consider
2576 this string "4 %r5" Is that the number 4 followed by the register
2577 r5, or is that 4 MOD r5?
2579 If we get a modulo expression when looking for an absolute, we try
2580 again cutting off the input string at the first whitespace character. */
2581 if (insn
->exp
.X_op
== O_modulus
)
2586 input_line_pointer
= *strp
;
2588 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
2594 retval
= pa_get_absolute_expression (insn
, strp
);
2596 input_line_pointer
= save_in
;
2598 return evaluate_absolute (insn
);
2600 /* When in strict mode we have a non-match, fix up the pointers
2601 and return to our caller. */
2602 if (insn
->exp
.X_op
!= O_constant
&& strict
)
2604 expr_end
= input_line_pointer
;
2605 input_line_pointer
= save_in
;
2608 if (insn
->exp
.X_op
!= O_constant
)
2610 as_bad (_("Bad segment (should be absolute)."));
2611 expr_end
= input_line_pointer
;
2612 input_line_pointer
= save_in
;
2615 expr_end
= input_line_pointer
;
2616 input_line_pointer
= save_in
;
2617 return evaluate_absolute (insn
);
2620 /* Given an argument location specification return the associated
2621 argument location number. */
2624 pa_build_arg_reloc (char *type_name
)
2627 if (strncasecmp (type_name
, "no", 2) == 0)
2629 if (strncasecmp (type_name
, "gr", 2) == 0)
2631 else if (strncasecmp (type_name
, "fr", 2) == 0)
2633 else if (strncasecmp (type_name
, "fu", 2) == 0)
2636 as_bad (_("Invalid argument location: %s\n"), type_name
);
2641 /* Encode and return an argument relocation specification for
2642 the given register in the location specified by arg_reloc. */
2645 pa_align_arg_reloc (unsigned int reg
, unsigned int arg_reloc
)
2647 unsigned int new_reloc
;
2649 new_reloc
= arg_reloc
;
2665 as_bad (_("Invalid argument description: %d"), reg
);
2671 /* Parse a non-negated compare/subtract completer returning the
2672 number (for encoding in instructions) of the given completer. */
2675 pa_parse_nonneg_cmpsub_cmpltr (char **s
)
2678 char *name
= *s
+ 1;
2687 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
2692 if (strcmp (name
, "=") == 0)
2696 else if (strcmp (name
, "<") == 0)
2700 else if (strcmp (name
, "<=") == 0)
2704 else if (strcmp (name
, "<<") == 0)
2708 else if (strcmp (name
, "<<=") == 0)
2712 else if (strcasecmp (name
, "sv") == 0)
2716 else if (strcasecmp (name
, "od") == 0)
2720 /* If we have something like addb,n then there is no condition
2722 else if (strcasecmp (name
, "n") == 0)
2734 /* Reset pointers if this was really a ,n for a branch instruction. */
2741 /* Parse a negated compare/subtract completer returning the
2742 number (for encoding in instructions) of the given completer. */
2745 pa_parse_neg_cmpsub_cmpltr (char **s
)
2748 char *name
= *s
+ 1;
2757 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
2762 if (strcasecmp (name
, "tr") == 0)
2766 else if (strcmp (name
, "<>") == 0)
2770 else if (strcmp (name
, ">=") == 0)
2774 else if (strcmp (name
, ">") == 0)
2778 else if (strcmp (name
, ">>=") == 0)
2782 else if (strcmp (name
, ">>") == 0)
2786 else if (strcasecmp (name
, "nsv") == 0)
2790 else if (strcasecmp (name
, "ev") == 0)
2794 /* If we have something like addb,n then there is no condition
2796 else if (strcasecmp (name
, "n") == 0)
2808 /* Reset pointers if this was really a ,n for a branch instruction. */
2815 /* Parse a 64 bit compare and branch completer returning the number (for
2816 encoding in instructions) of the given completer.
2818 Nonnegated comparisons are returned as 0-7, negated comparisons are
2819 returned as 8-15. */
2822 pa_parse_cmpb_64_cmpltr (char **s
)
2825 char *name
= *s
+ 1;
2832 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
2837 if (strcmp (name
, "*") == 0)
2841 else if (strcmp (name
, "*=") == 0)
2845 else if (strcmp (name
, "*<") == 0)
2849 else if (strcmp (name
, "*<=") == 0)
2853 else if (strcmp (name
, "*<<") == 0)
2857 else if (strcmp (name
, "*<<=") == 0)
2861 else if (strcasecmp (name
, "*sv") == 0)
2865 else if (strcasecmp (name
, "*od") == 0)
2869 else if (strcasecmp (name
, "*tr") == 0)
2873 else if (strcmp (name
, "*<>") == 0)
2877 else if (strcmp (name
, "*>=") == 0)
2881 else if (strcmp (name
, "*>") == 0)
2885 else if (strcmp (name
, "*>>=") == 0)
2889 else if (strcmp (name
, "*>>") == 0)
2893 else if (strcasecmp (name
, "*nsv") == 0)
2897 else if (strcasecmp (name
, "*ev") == 0)
2911 /* Parse a 64 bit compare immediate and branch completer returning the number
2912 (for encoding in instructions) of the given completer. */
2915 pa_parse_cmpib_64_cmpltr (char **s
)
2918 char *name
= *s
+ 1;
2925 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
2930 if (strcmp (name
, "*<<") == 0)
2934 else if (strcmp (name
, "*=") == 0)
2938 else if (strcmp (name
, "*<") == 0)
2942 else if (strcmp (name
, "*<=") == 0)
2946 else if (strcmp (name
, "*>>=") == 0)
2950 else if (strcmp (name
, "*<>") == 0)
2954 else if (strcasecmp (name
, "*>=") == 0)
2958 else if (strcasecmp (name
, "*>") == 0)
2972 /* Parse a non-negated addition completer returning the number
2973 (for encoding in instructions) of the given completer. */
2976 pa_parse_nonneg_add_cmpltr (char **s
)
2979 char *name
= *s
+ 1;
2988 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
2992 if (strcmp (name
, "=") == 0)
2996 else if (strcmp (name
, "<") == 0)
3000 else if (strcmp (name
, "<=") == 0)
3004 else if (strcasecmp (name
, "nuv") == 0)
3008 else if (strcasecmp (name
, "znv") == 0)
3012 else if (strcasecmp (name
, "sv") == 0)
3016 else if (strcasecmp (name
, "od") == 0)
3020 /* If we have something like addb,n then there is no condition
3022 else if (strcasecmp (name
, "n") == 0)
3034 /* Reset pointers if this was really a ,n for a branch instruction. */
3041 /* Parse a negated addition completer returning the number
3042 (for encoding in instructions) of the given completer. */
3045 pa_parse_neg_add_cmpltr (char **s
)
3048 char *name
= *s
+ 1;
3057 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3061 if (strcasecmp (name
, "tr") == 0)
3065 else if (strcmp (name
, "<>") == 0)
3069 else if (strcmp (name
, ">=") == 0)
3073 else if (strcmp (name
, ">") == 0)
3077 else if (strcasecmp (name
, "uv") == 0)
3081 else if (strcasecmp (name
, "vnz") == 0)
3085 else if (strcasecmp (name
, "nsv") == 0)
3089 else if (strcasecmp (name
, "ev") == 0)
3093 /* If we have something like addb,n then there is no condition
3095 else if (strcasecmp (name
, "n") == 0)
3107 /* Reset pointers if this was really a ,n for a branch instruction. */
3114 /* Parse a 64 bit wide mode add and branch completer returning the number (for
3115 encoding in instructions) of the given completer. */
3118 pa_parse_addb_64_cmpltr (char **s
)
3121 char *name
= *s
+ 1;
3130 while (**s
!= ',' && **s
!= ' ' && **s
!= '\t')
3134 if (strcmp (name
, "=") == 0)
3138 else if (strcmp (name
, "<") == 0)
3142 else if (strcmp (name
, "<=") == 0)
3146 else if (strcasecmp (name
, "nuv") == 0)
3150 else if (strcasecmp (name
, "*=") == 0)
3154 else if (strcasecmp (name
, "*<") == 0)
3158 else if (strcasecmp (name
, "*<=") == 0)
3162 else if (strcmp (name
, "tr") == 0)
3166 else if (strcmp (name
, "<>") == 0)
3170 else if (strcmp (name
, ">=") == 0)
3174 else if (strcmp (name
, ">") == 0)
3178 else if (strcasecmp (name
, "uv") == 0)
3182 else if (strcasecmp (name
, "*<>") == 0)
3186 else if (strcasecmp (name
, "*>=") == 0)
3190 else if (strcasecmp (name
, "*>") == 0)
3194 /* If we have something like addb,n then there is no condition
3196 else if (strcasecmp (name
, "n") == 0)
3208 /* Reset pointers if this was really a ,n for a branch instruction. */
3215 /* Do the real work for assembling a single instruction. Store results
3216 into the global "the_insn" variable. */
3221 char *error_message
= "";
3222 char *s
, c
, *argstart
, *name
, *save_s
;
3226 int cmpltr
, nullif
, flag
, cond
, num
;
3227 unsigned long opcode
;
3228 struct pa_opcode
*insn
;
3231 /* We must have a valid space and subspace. */
3232 pa_check_current_space_and_subspace ();
3235 /* Convert everything up to the first whitespace character into lower
3237 for (s
= str
; *s
!= ' ' && *s
!= '\t' && *s
!= '\n' && *s
!= '\0'; s
++)
3240 /* Skip to something interesting. */
3242 ISUPPER (*s
) || ISLOWER (*s
) || (*s
>= '0' && *s
<= '3');
3262 as_bad (_("Unknown opcode: `%s'"), str
);
3266 /* Look up the opcode in the has table. */
3267 if ((insn
= (struct pa_opcode
*) hash_find (op_hash
, str
)) == NULL
)
3269 as_bad ("Unknown opcode: `%s'", str
);
3276 /* Mark the location where arguments for the instruction start, then
3277 start processing them. */
3281 /* Do some initialization. */
3282 opcode
= insn
->match
;
3283 strict
= (insn
->flags
& FLAG_STRICT
);
3284 memset (&the_insn
, 0, sizeof (the_insn
));
3286 the_insn
.reloc
= R_HPPA_NONE
;
3288 if (insn
->arch
>= pa20
3289 && bfd_get_mach (stdoutput
) < insn
->arch
)
3292 /* Build the opcode, checking as we go to make
3293 sure that the operands match. */
3294 for (args
= insn
->args
;; ++args
)
3296 /* Absorb white space in instruction. */
3297 while (*s
== ' ' || *s
== '\t')
3302 /* End of arguments. */
3318 /* These must match exactly. */
3327 /* Handle a 5 bit register or control register field at 10. */
3330 if (!pa_parse_number (&s
, 0))
3333 CHECK_FIELD (num
, 31, 0, 0);
3334 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
3336 /* Handle %sar or %cr11. No bits get set, we just verify that it
3339 /* Skip whitespace before register. */
3340 while (*s
== ' ' || *s
== '\t')
3343 if (!strncasecmp (s
, "%sar", 4))
3348 else if (!strncasecmp (s
, "%cr11", 5))
3355 /* Handle a 5 bit register field at 15. */
3357 if (!pa_parse_number (&s
, 0))
3360 CHECK_FIELD (num
, 31, 0, 0);
3361 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
3363 /* Handle a 5 bit register field at 31. */
3365 if (!pa_parse_number (&s
, 0))
3368 CHECK_FIELD (num
, 31, 0, 0);
3369 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3371 /* Handle a 5 bit register field at 10 and 15. */
3373 if (!pa_parse_number (&s
, 0))
3376 CHECK_FIELD (num
, 31, 0, 0);
3377 opcode
|= num
<< 16;
3378 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
3380 /* Handle a 5 bit field length at 31. */
3382 num
= pa_get_absolute_expression (&the_insn
, &s
);
3383 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3386 CHECK_FIELD (num
, 32, 1, 0);
3387 INSERT_FIELD_AND_CONTINUE (opcode
, 32 - num
, 0);
3389 /* Handle a 5 bit immediate at 15. */
3391 num
= pa_get_absolute_expression (&the_insn
, &s
);
3392 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3395 /* When in strict mode, we want to just reject this
3396 match instead of giving an out of range error. */
3397 CHECK_FIELD (num
, 15, -16, strict
);
3398 num
= low_sign_unext (num
, 5);
3399 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
3401 /* Handle a 5 bit immediate at 31. */
3403 num
= pa_get_absolute_expression (&the_insn
, &s
);
3404 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3407 /* When in strict mode, we want to just reject this
3408 match instead of giving an out of range error. */
3409 CHECK_FIELD (num
, 15, -16, strict
);
3410 num
= low_sign_unext (num
, 5);
3411 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3413 /* Handle an unsigned 5 bit immediate at 31. */
3415 num
= pa_get_absolute_expression (&the_insn
, &s
);
3416 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3419 CHECK_FIELD (num
, 31, 0, strict
);
3420 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
3422 /* Handle an unsigned 5 bit immediate at 15. */
3424 num
= pa_get_absolute_expression (&the_insn
, &s
);
3425 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3428 CHECK_FIELD (num
, 31, 0, strict
);
3429 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
3431 /* Handle an unsigned 10 bit immediate at 15. */
3433 num
= pa_get_absolute_expression (&the_insn
, &s
);
3434 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
3437 CHECK_FIELD (num
, 1023, 0, strict
);
3438 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
3440 /* Handle a 2 bit space identifier at 17. */
3442 if (!pa_parse_number (&s
, 0))
3445 CHECK_FIELD (num
, 3, 0, 1);
3446 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 14);
3448 /* Handle a 3 bit space identifier at 18. */
3450 if (!pa_parse_number (&s
, 0))
3453 CHECK_FIELD (num
, 7, 0, 1);
3454 opcode
|= re_assemble_3 (num
);
3457 /* Handle all completers. */
3462 /* Handle a completer for an indexing load or store. */
3469 while (*s
== ',' && i
< 2)
3472 if (strncasecmp (s
, "sm", 2) == 0)
3479 else if (strncasecmp (s
, "m", 1) == 0)
3481 else if ((strncasecmp (s
, "s ", 2) == 0)
3482 || (strncasecmp (s
, "s,", 2) == 0))
3486 /* This is a match failure. */
3491 as_bad (_("Invalid Indexed Load Completer."));
3496 as_bad (_("Invalid Indexed Load Completer Syntax."));
3498 INSERT_FIELD_AND_CONTINUE (opcode
, uu
, 13);
3501 /* Handle a short load/store completer. */
3513 if (strncasecmp (s
, "ma", 2) == 0)
3519 else if (strncasecmp (s
, "mb", 2) == 0)
3526 /* This is a match failure. */
3530 as_bad (_("Invalid Short Load/Store Completer."));
3534 /* If we did not get a ma/mb completer, then we do not
3535 consider this a positive match for 'ce'. */
3536 else if (*args
== 'e')
3539 /* 'J', 'm', 'M' and 'q' are the same, except for where they
3540 encode the before/after field. */
3541 if (*args
== 'm' || *args
== 'M')
3544 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
3546 else if (*args
== 'q')
3549 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 2);
3551 else if (*args
== 'J')
3553 /* M bit is explicit in the major opcode. */
3554 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 2);
3556 else if (*args
== 'e')
3558 /* Stash the ma/mb flag temporarily in the
3559 instruction. We will use (and remove it)
3560 later when handling 'J', 'K', '<' & '>'. */
3566 /* Handle a stbys completer. */
3573 while (*s
== ',' && i
< 2)
3576 if (strncasecmp (s
, "m", 1) == 0)
3578 else if ((strncasecmp (s
, "b ", 2) == 0)
3579 || (strncasecmp (s
, "b,", 2) == 0))
3581 else if (strncasecmp (s
, "e", 1) == 0)
3583 /* In strict mode, this is a match failure. */
3590 as_bad (_("Invalid Store Bytes Short Completer"));
3595 as_bad (_("Invalid Store Bytes Short Completer"));
3597 INSERT_FIELD_AND_CONTINUE (opcode
, a
, 13);
3600 /* Handle load cache hint completer. */
3603 if (!strncmp (s
, ",sl", 3))
3608 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 10);
3610 /* Handle store cache hint completer. */
3613 if (!strncmp (s
, ",sl", 3))
3618 else if (!strncmp (s
, ",bc", 3))
3623 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 10);
3625 /* Handle load and clear cache hint completer. */
3628 if (!strncmp (s
, ",co", 3))
3633 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 10);
3635 /* Handle load ordering completer. */
3637 if (strncmp (s
, ",o", 2) != 0)
3642 /* Handle a branch gate completer. */
3644 if (strncasecmp (s
, ",gate", 5) != 0)
3649 /* Handle a branch link and push completer. */
3651 if (strncasecmp (s
, ",l,push", 7) != 0)
3656 /* Handle a branch link completer. */
3658 if (strncasecmp (s
, ",l", 2) != 0)
3663 /* Handle a branch pop completer. */
3665 if (strncasecmp (s
, ",pop", 4) != 0)
3670 /* Handle a local processor completer. */
3672 if (strncasecmp (s
, ",l", 2) != 0)
3677 /* Handle a PROBE read/write completer. */
3680 if (!strncasecmp (s
, ",w", 2))
3685 else if (!strncasecmp (s
, ",r", 2))
3691 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
3693 /* Handle MFCTL wide completer. */
3695 if (strncasecmp (s
, ",w", 2) != 0)
3700 /* Handle an RFI restore completer. */
3703 if (!strncasecmp (s
, ",r", 2))
3709 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
3711 /* Handle a system control completer. */
3713 if (*s
== ',' && (*(s
+ 1) == 'm' || *(s
+ 1) == 'M'))
3721 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 5);
3723 /* Handle intermediate/final completer for DCOR. */
3726 if (!strncasecmp (s
, ",i", 2))
3732 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
3734 /* Handle zero/sign extension completer. */
3737 if (!strncasecmp (s
, ",z", 2))
3743 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
3745 /* Handle add completer. */
3748 if (!strncasecmp (s
, ",l", 2))
3753 else if (!strncasecmp (s
, ",tsv", 4))
3759 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 10);
3761 /* Handle 64 bit carry for ADD. */
3764 if (!strncasecmp (s
, ",dc,tsv", 7) ||
3765 !strncasecmp (s
, ",tsv,dc", 7))
3770 else if (!strncasecmp (s
, ",dc", 3))
3778 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
3780 /* Handle 32 bit carry for ADD. */
3783 if (!strncasecmp (s
, ",c,tsv", 6) ||
3784 !strncasecmp (s
, ",tsv,c", 6))
3789 else if (!strncasecmp (s
, ",c", 2))
3797 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
3799 /* Handle trap on signed overflow. */
3802 if (!strncasecmp (s
, ",tsv", 4))
3808 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
3810 /* Handle trap on condition and overflow. */
3813 if (!strncasecmp (s
, ",tc,tsv", 7) ||
3814 !strncasecmp (s
, ",tsv,tc", 7))
3819 else if (!strncasecmp (s
, ",tc", 3))
3827 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
3829 /* Handle 64 bit borrow for SUB. */
3832 if (!strncasecmp (s
, ",db,tsv", 7) ||
3833 !strncasecmp (s
, ",tsv,db", 7))
3838 else if (!strncasecmp (s
, ",db", 3))
3846 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
3848 /* Handle 32 bit borrow for SUB. */
3851 if (!strncasecmp (s
, ",b,tsv", 6) ||
3852 !strncasecmp (s
, ",tsv,b", 6))
3857 else if (!strncasecmp (s
, ",b", 2))
3865 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
3867 /* Handle trap condition completer for UADDCM. */
3870 if (!strncasecmp (s
, ",tc", 3))
3876 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 6);
3878 /* Handle signed/unsigned at 21. */
3882 if (strncasecmp (s
, ",s", 2) == 0)
3887 else if (strncasecmp (s
, ",u", 2) == 0)
3893 INSERT_FIELD_AND_CONTINUE (opcode
, sign
, 10);
3896 /* Handle left/right combination at 17:18. */
3906 as_bad (_("Invalid left/right combination completer"));
3909 INSERT_FIELD_AND_CONTINUE (opcode
, lr
, 13);
3912 as_bad (_("Invalid left/right combination completer"));
3915 /* Handle saturation at 24:25. */
3919 if (strncasecmp (s
, ",ss", 3) == 0)
3924 else if (strncasecmp (s
, ",us", 3) == 0)
3930 INSERT_FIELD_AND_CONTINUE (opcode
, sat
, 6);
3933 /* Handle permutation completer. */
3961 as_bad (_("Invalid permutation completer"));
3963 opcode
|= perm
<< permloc
[i
];
3968 as_bad (_("Invalid permutation completer"));
3976 /* Handle all conditions. */
3982 /* Handle FP compare conditions. */
3984 cond
= pa_parse_fp_cmp_cond (&s
);
3985 INSERT_FIELD_AND_CONTINUE (opcode
, cond
, 0);
3987 /* Handle an add condition. */
3996 /* 64 bit conditions. */
4008 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
4012 if (strcmp (name
, "=") == 0)
4014 else if (strcmp (name
, "<") == 0)
4016 else if (strcmp (name
, "<=") == 0)
4018 else if (strcasecmp (name
, "nuv") == 0)
4020 else if (strcasecmp (name
, "znv") == 0)
4022 else if (strcasecmp (name
, "sv") == 0)
4024 else if (strcasecmp (name
, "od") == 0)
4026 else if (strcasecmp (name
, "tr") == 0)
4031 else if (strcmp (name
, "<>") == 0)
4036 else if (strcmp (name
, ">=") == 0)
4041 else if (strcmp (name
, ">") == 0)
4046 else if (strcasecmp (name
, "uv") == 0)
4051 else if (strcasecmp (name
, "vnz") == 0)
4056 else if (strcasecmp (name
, "nsv") == 0)
4061 else if (strcasecmp (name
, "ev") == 0)
4066 /* ",*" is a valid condition. */
4067 else if (*args
== 'a' || *name
)
4068 as_bad (_("Invalid Add Condition: %s"), name
);
4071 opcode
|= cmpltr
<< 13;
4072 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
4074 /* Handle non-negated add and branch condition. */
4076 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
);
4079 as_bad (_("Invalid Add and Branch Condition"));
4082 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
4084 /* Handle 64 bit wide-mode add and branch condition. */
4086 cmpltr
= pa_parse_addb_64_cmpltr (&s
);
4089 as_bad (_("Invalid Add and Branch Condition"));
4094 /* Negated condition requires an opcode change. */
4095 opcode
|= (cmpltr
& 8) << 24;
4097 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
& 7, 13);
4099 /* Handle a negated or non-negated add and branch
4103 cmpltr
= pa_parse_nonneg_add_cmpltr (&s
);
4107 cmpltr
= pa_parse_neg_add_cmpltr (&s
);
4110 as_bad (_("Invalid Compare/Subtract Condition"));
4115 /* Negated condition requires an opcode change. */
4119 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
4121 /* Handle branch on bit conditions. */
4139 if (strncmp (s
, "<", 1) == 0)
4144 else if (strncmp (s
, ">=", 2) == 0)
4150 as_bad (_("Invalid Bit Branch Condition: %c"), *s
);
4152 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 15);
4154 /* Handle a compare/subtract condition. */
4163 /* 64 bit conditions. */
4175 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
4179 if (strcmp (name
, "=") == 0)
4181 else if (strcmp (name
, "<") == 0)
4183 else if (strcmp (name
, "<=") == 0)
4185 else if (strcasecmp (name
, "<<") == 0)
4187 else if (strcasecmp (name
, "<<=") == 0)
4189 else if (strcasecmp (name
, "sv") == 0)
4191 else if (strcasecmp (name
, "od") == 0)
4193 else if (strcasecmp (name
, "tr") == 0)
4198 else if (strcmp (name
, "<>") == 0)
4203 else if (strcmp (name
, ">=") == 0)
4208 else if (strcmp (name
, ">") == 0)
4213 else if (strcasecmp (name
, ">>=") == 0)
4218 else if (strcasecmp (name
, ">>") == 0)
4223 else if (strcasecmp (name
, "nsv") == 0)
4228 else if (strcasecmp (name
, "ev") == 0)
4233 /* ",*" is a valid condition. */
4234 else if (*args
!= 'S' || *name
)
4235 as_bad (_("Invalid Compare/Subtract Condition: %s"),
4239 opcode
|= cmpltr
<< 13;
4240 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
4242 /* Handle a non-negated compare condition. */
4244 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
);
4247 as_bad (_("Invalid Compare/Subtract Condition"));
4250 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
4252 /* Handle a 32 bit compare and branch condition. */
4255 cmpltr
= pa_parse_nonneg_cmpsub_cmpltr (&s
);
4259 cmpltr
= pa_parse_neg_cmpsub_cmpltr (&s
);
4262 as_bad (_("Invalid Compare and Branch Condition"));
4267 /* Negated condition requires an opcode change. */
4272 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
4274 /* Handle a 64 bit compare and branch condition. */
4276 cmpltr
= pa_parse_cmpb_64_cmpltr (&s
);
4279 /* Negated condition requires an opcode change. */
4280 opcode
|= (cmpltr
& 8) << 26;
4283 /* Not a 64 bit cond. Give 32 bit a chance. */
4286 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
& 7, 13);
4288 /* Handle a 64 bit cmpib condition. */
4290 cmpltr
= pa_parse_cmpib_64_cmpltr (&s
);
4292 /* Not a 64 bit cond. Give 32 bit a chance. */
4295 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
4297 /* Handle a logical instruction condition. */
4306 /* 64 bit conditions. */
4318 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
4323 if (strcmp (name
, "=") == 0)
4325 else if (strcmp (name
, "<") == 0)
4327 else if (strcmp (name
, "<=") == 0)
4329 else if (strcasecmp (name
, "od") == 0)
4331 else if (strcasecmp (name
, "tr") == 0)
4336 else if (strcmp (name
, "<>") == 0)
4341 else if (strcmp (name
, ">=") == 0)
4346 else if (strcmp (name
, ">") == 0)
4351 else if (strcasecmp (name
, "ev") == 0)
4356 /* ",*" is a valid condition. */
4357 else if (*args
!= 'L' || *name
)
4358 as_bad (_("Invalid Logical Instruction Condition."));
4361 opcode
|= cmpltr
<< 13;
4362 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
4364 /* Handle a shift/extract/deposit condition. */
4373 /* 64 bit conditions. */
4385 while (*s
!= ',' && *s
!= ' ' && *s
!= '\t')
4389 if (strcmp (name
, "=") == 0)
4391 else if (strcmp (name
, "<") == 0)
4393 else if (strcasecmp (name
, "od") == 0)
4395 else if (strcasecmp (name
, "tr") == 0)
4397 else if (strcmp (name
, "<>") == 0)
4399 else if (strcmp (name
, ">=") == 0)
4401 else if (strcasecmp (name
, "ev") == 0)
4403 /* Handle movb,n. Put things back the way they were.
4404 This includes moving s back to where it started. */
4405 else if (strcasecmp (name
, "n") == 0 && *args
== 'y')
4411 /* ",*" is a valid condition. */
4412 else if (*args
!= 'X' || *name
)
4413 as_bad (_("Invalid Shift/Extract/Deposit Condition."));
4416 INSERT_FIELD_AND_CONTINUE (opcode
, cmpltr
, 13);
4418 /* Handle a unit instruction condition. */
4427 /* 64 bit conditions. */
4438 if (strncasecmp (s
, "sbz", 3) == 0)
4443 else if (strncasecmp (s
, "shz", 3) == 0)
4448 else if (strncasecmp (s
, "sdc", 3) == 0)
4453 else if (strncasecmp (s
, "sbc", 3) == 0)
4458 else if (strncasecmp (s
, "shc", 3) == 0)
4463 else if (strncasecmp (s
, "tr", 2) == 0)
4469 else if (strncasecmp (s
, "nbz", 3) == 0)
4475 else if (strncasecmp (s
, "nhz", 3) == 0)
4481 else if (strncasecmp (s
, "ndc", 3) == 0)
4487 else if (strncasecmp (s
, "nbc", 3) == 0)
4493 else if (strncasecmp (s
, "nhc", 3) == 0)
4499 else if (strncasecmp (s
, "swz", 3) == 0)
4505 else if (strncasecmp (s
, "swc", 3) == 0)
4511 else if (strncasecmp (s
, "nwz", 3) == 0)
4517 else if (strncasecmp (s
, "nwc", 3) == 0)
4523 /* ",*" is a valid condition. */
4524 else if (*args
!= 'U' || (*s
!= ' ' && *s
!= '\t'))
4525 as_bad (_("Invalid Unit Instruction Condition."));
4527 opcode
|= cmpltr
<< 13;
4528 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 12);
4536 /* Handle a nullification completer for branch instructions. */
4538 nullif
= pa_parse_nullif (&s
);
4539 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 1);
4541 /* Handle a nullification completer for copr and spop insns. */
4543 nullif
= pa_parse_nullif (&s
);
4544 INSERT_FIELD_AND_CONTINUE (opcode
, nullif
, 5);
4546 /* Handle ,%r2 completer for new syntax branches. */
4548 if (*s
== ',' && strncasecmp (s
+ 1, "%r2", 3) == 0)
4550 else if (*s
== ',' && strncasecmp (s
+ 1, "%rp", 3) == 0)
4556 /* Handle 3 bit entry into the fp compare array. Valid values
4557 are 0..6 inclusive. */
4561 if (the_insn
.exp
.X_op
== O_constant
)
4563 num
= evaluate_absolute (&the_insn
);
4564 CHECK_FIELD (num
, 6, 0, 0);
4566 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
4571 /* Handle 3 bit entry into the fp compare array. Valid values
4572 are 0..6 inclusive. */
4575 if (the_insn
.exp
.X_op
== O_constant
)
4578 num
= evaluate_absolute (&the_insn
);
4579 CHECK_FIELD (num
, 6, 0, 0);
4580 num
= (num
+ 1) ^ 1;
4581 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
4586 /* Handle graphics test completers for ftest */
4589 num
= pa_parse_ftest_gfx_completer (&s
);
4590 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
4593 /* Handle a 11 bit immediate at 31. */
4595 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4598 if (the_insn
.exp
.X_op
== O_constant
)
4600 num
= evaluate_absolute (&the_insn
);
4601 CHECK_FIELD (num
, 1023, -1024, 0);
4602 num
= low_sign_unext (num
, 11);
4603 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
4607 if (is_DP_relative (the_insn
.exp
))
4608 the_insn
.reloc
= R_HPPA_GOTOFF
;
4609 else if (is_PC_relative (the_insn
.exp
))
4610 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
4612 else if (is_tls_gdidx (the_insn
.exp
))
4613 the_insn
.reloc
= R_PARISC_TLS_GD21L
;
4614 else if (is_tls_ldidx (the_insn
.exp
))
4615 the_insn
.reloc
= R_PARISC_TLS_LDM21L
;
4616 else if (is_tls_dtpoff (the_insn
.exp
))
4617 the_insn
.reloc
= R_PARISC_TLS_LDO21L
;
4618 else if (is_tls_ieoff (the_insn
.exp
))
4619 the_insn
.reloc
= R_PARISC_TLS_IE21L
;
4620 else if (is_tls_leoff (the_insn
.exp
))
4621 the_insn
.reloc
= R_PARISC_TLS_LE21L
;
4624 the_insn
.reloc
= R_HPPA
;
4625 the_insn
.format
= 11;
4629 /* Handle a 14 bit immediate at 31. */
4631 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4634 if (the_insn
.exp
.X_op
== O_constant
)
4638 /* XXX the completer stored away tidbits of information
4639 for us to extract. We need a cleaner way to do this.
4640 Now that we have lots of letters again, it would be
4641 good to rethink this. */
4644 num
= evaluate_absolute (&the_insn
);
4645 if (mb
!= (num
< 0))
4647 CHECK_FIELD (num
, 8191, -8192, 0);
4648 num
= low_sign_unext (num
, 14);
4649 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
4653 /* Handle a 14 bit immediate at 31. */
4655 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4658 if (the_insn
.exp
.X_op
== O_constant
)
4664 num
= evaluate_absolute (&the_insn
);
4665 if (mb
== (num
< 0))
4669 CHECK_FIELD (num
, 8191, -8192, 0);
4670 num
= low_sign_unext (num
, 14);
4671 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
4675 /* Handle a 16 bit immediate at 31. */
4677 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4680 if (the_insn
.exp
.X_op
== O_constant
)
4686 num
= evaluate_absolute (&the_insn
);
4687 if (mb
!= (num
< 0))
4689 CHECK_FIELD (num
, 32767, -32768, 0);
4690 num
= re_assemble_16 (num
);
4691 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
4695 /* Handle a 16 bit immediate at 31. */
4697 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4700 if (the_insn
.exp
.X_op
== O_constant
)
4706 num
= evaluate_absolute (&the_insn
);
4707 if (mb
== (num
< 0))
4711 CHECK_FIELD (num
, 32767, -32768, 0);
4712 num
= re_assemble_16 (num
);
4713 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
4717 /* Handle 14 bit immediate, shifted left three times. */
4719 if (bfd_get_mach (stdoutput
) != pa20
)
4721 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4724 if (the_insn
.exp
.X_op
== O_constant
)
4726 num
= evaluate_absolute (&the_insn
);
4729 CHECK_FIELD (num
, 8191, -8192, 0);
4734 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 4);
4738 if (is_DP_relative (the_insn
.exp
))
4739 the_insn
.reloc
= R_HPPA_GOTOFF
;
4740 else if (is_PC_relative (the_insn
.exp
))
4741 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
4743 else if (is_tls_gdidx (the_insn
.exp
))
4744 the_insn
.reloc
= R_PARISC_TLS_GD21L
;
4745 else if (is_tls_ldidx (the_insn
.exp
))
4746 the_insn
.reloc
= R_PARISC_TLS_LDM21L
;
4747 else if (is_tls_dtpoff (the_insn
.exp
))
4748 the_insn
.reloc
= R_PARISC_TLS_LDO21L
;
4749 else if (is_tls_ieoff (the_insn
.exp
))
4750 the_insn
.reloc
= R_PARISC_TLS_IE21L
;
4751 else if (is_tls_leoff (the_insn
.exp
))
4752 the_insn
.reloc
= R_PARISC_TLS_LE21L
;
4755 the_insn
.reloc
= R_HPPA
;
4756 the_insn
.format
= 14;
4761 /* Handle 14 bit immediate, shifted left twice. */
4763 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4766 if (the_insn
.exp
.X_op
== O_constant
)
4768 num
= evaluate_absolute (&the_insn
);
4771 CHECK_FIELD (num
, 8191, -8192, 0);
4776 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 3);
4780 if (is_DP_relative (the_insn
.exp
))
4781 the_insn
.reloc
= R_HPPA_GOTOFF
;
4782 else if (is_PC_relative (the_insn
.exp
))
4783 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
4785 else if (is_tls_gdidx (the_insn
.exp
))
4786 the_insn
.reloc
= R_PARISC_TLS_GD21L
;
4787 else if (is_tls_ldidx (the_insn
.exp
))
4788 the_insn
.reloc
= R_PARISC_TLS_LDM21L
;
4789 else if (is_tls_dtpoff (the_insn
.exp
))
4790 the_insn
.reloc
= R_PARISC_TLS_LDO21L
;
4791 else if (is_tls_ieoff (the_insn
.exp
))
4792 the_insn
.reloc
= R_PARISC_TLS_IE21L
;
4793 else if (is_tls_leoff (the_insn
.exp
))
4794 the_insn
.reloc
= R_PARISC_TLS_LE21L
;
4797 the_insn
.reloc
= R_HPPA
;
4798 the_insn
.format
= 14;
4802 /* Handle a 14 bit immediate at 31. */
4804 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4807 if (the_insn
.exp
.X_op
== O_constant
)
4809 num
= evaluate_absolute (&the_insn
);
4810 CHECK_FIELD (num
, 8191, -8192, 0);
4811 num
= low_sign_unext (num
, 14);
4812 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
4816 if (is_DP_relative (the_insn
.exp
))
4817 the_insn
.reloc
= R_HPPA_GOTOFF
;
4818 else if (is_PC_relative (the_insn
.exp
))
4819 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
4821 else if (is_tls_gdidx (the_insn
.exp
))
4822 the_insn
.reloc
= R_PARISC_TLS_GD21L
;
4823 else if (is_tls_ldidx (the_insn
.exp
))
4824 the_insn
.reloc
= R_PARISC_TLS_LDM21L
;
4825 else if (is_tls_dtpoff (the_insn
.exp
))
4826 the_insn
.reloc
= R_PARISC_TLS_LDO21L
;
4827 else if (is_tls_ieoff (the_insn
.exp
))
4828 the_insn
.reloc
= R_PARISC_TLS_IE21L
;
4829 else if (is_tls_leoff (the_insn
.exp
))
4830 the_insn
.reloc
= R_PARISC_TLS_LE21L
;
4833 the_insn
.reloc
= R_HPPA
;
4834 the_insn
.format
= 14;
4838 /* Handle a 21 bit immediate at 31. */
4840 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4843 if (the_insn
.exp
.X_op
== O_constant
)
4845 num
= evaluate_absolute (&the_insn
);
4846 CHECK_FIELD (num
>> 11, 1048575, -1048576, 0);
4847 opcode
|= re_assemble_21 (num
);
4852 if (is_DP_relative (the_insn
.exp
))
4853 the_insn
.reloc
= R_HPPA_GOTOFF
;
4854 else if (is_PC_relative (the_insn
.exp
))
4855 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
4857 else if (is_tls_gdidx (the_insn
.exp
))
4858 the_insn
.reloc
= R_PARISC_TLS_GD21L
;
4859 else if (is_tls_ldidx (the_insn
.exp
))
4860 the_insn
.reloc
= R_PARISC_TLS_LDM21L
;
4861 else if (is_tls_dtpoff (the_insn
.exp
))
4862 the_insn
.reloc
= R_PARISC_TLS_LDO21L
;
4863 else if (is_tls_ieoff (the_insn
.exp
))
4864 the_insn
.reloc
= R_PARISC_TLS_IE21L
;
4865 else if (is_tls_leoff (the_insn
.exp
))
4866 the_insn
.reloc
= R_PARISC_TLS_LE21L
;
4869 the_insn
.reloc
= R_HPPA
;
4870 the_insn
.format
= 21;
4874 /* Handle a 16 bit immediate at 31 (PA 2.0 wide mode only). */
4876 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4879 if (the_insn
.exp
.X_op
== O_constant
)
4881 num
= evaluate_absolute (&the_insn
);
4882 CHECK_FIELD (num
, 32767, -32768, 0);
4883 opcode
|= re_assemble_16 (num
);
4888 /* ??? Is this valid for wide mode? */
4889 if (is_DP_relative (the_insn
.exp
))
4890 the_insn
.reloc
= R_HPPA_GOTOFF
;
4891 else if (is_PC_relative (the_insn
.exp
))
4892 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
4894 else if (is_tls_gdidx (the_insn
.exp
))
4895 the_insn
.reloc
= R_PARISC_TLS_GD21L
;
4896 else if (is_tls_ldidx (the_insn
.exp
))
4897 the_insn
.reloc
= R_PARISC_TLS_LDM21L
;
4898 else if (is_tls_dtpoff (the_insn
.exp
))
4899 the_insn
.reloc
= R_PARISC_TLS_LDO21L
;
4900 else if (is_tls_ieoff (the_insn
.exp
))
4901 the_insn
.reloc
= R_PARISC_TLS_IE21L
;
4902 else if (is_tls_leoff (the_insn
.exp
))
4903 the_insn
.reloc
= R_PARISC_TLS_LE21L
;
4906 the_insn
.reloc
= R_HPPA
;
4907 the_insn
.format
= 14;
4911 /* Handle a word-aligned 16-bit imm. at 31 (PA2.0 wide). */
4913 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4916 if (the_insn
.exp
.X_op
== O_constant
)
4918 num
= evaluate_absolute (&the_insn
);
4919 CHECK_FIELD (num
, 32767, -32768, 0);
4920 CHECK_ALIGN (num
, 4, 0);
4921 opcode
|= re_assemble_16 (num
);
4926 /* ??? Is this valid for wide mode? */
4927 if (is_DP_relative (the_insn
.exp
))
4928 the_insn
.reloc
= R_HPPA_GOTOFF
;
4929 else if (is_PC_relative (the_insn
.exp
))
4930 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
4932 else if (is_tls_gdidx (the_insn
.exp
))
4933 the_insn
.reloc
= R_PARISC_TLS_GD21L
;
4934 else if (is_tls_ldidx (the_insn
.exp
))
4935 the_insn
.reloc
= R_PARISC_TLS_LDM21L
;
4936 else if (is_tls_dtpoff (the_insn
.exp
))
4937 the_insn
.reloc
= R_PARISC_TLS_LDO21L
;
4938 else if (is_tls_ieoff (the_insn
.exp
))
4939 the_insn
.reloc
= R_PARISC_TLS_IE21L
;
4940 else if (is_tls_leoff (the_insn
.exp
))
4941 the_insn
.reloc
= R_PARISC_TLS_LE21L
;
4944 the_insn
.reloc
= R_HPPA
;
4945 the_insn
.format
= 14;
4949 /* Handle a dword-aligned 16-bit imm. at 31 (PA2.0 wide). */
4951 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4954 if (the_insn
.exp
.X_op
== O_constant
)
4956 num
= evaluate_absolute (&the_insn
);
4957 CHECK_FIELD (num
, 32767, -32768, 0);
4958 CHECK_ALIGN (num
, 8, 0);
4959 opcode
|= re_assemble_16 (num
);
4964 /* ??? Is this valid for wide mode? */
4965 if (is_DP_relative (the_insn
.exp
))
4966 the_insn
.reloc
= R_HPPA_GOTOFF
;
4967 else if (is_PC_relative (the_insn
.exp
))
4968 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
4970 else if (is_tls_gdidx (the_insn
.exp
))
4971 the_insn
.reloc
= R_PARISC_TLS_GD21L
;
4972 else if (is_tls_ldidx (the_insn
.exp
))
4973 the_insn
.reloc
= R_PARISC_TLS_LDM21L
;
4974 else if (is_tls_dtpoff (the_insn
.exp
))
4975 the_insn
.reloc
= R_PARISC_TLS_LDO21L
;
4976 else if (is_tls_ieoff (the_insn
.exp
))
4977 the_insn
.reloc
= R_PARISC_TLS_IE21L
;
4978 else if (is_tls_leoff (the_insn
.exp
))
4979 the_insn
.reloc
= R_PARISC_TLS_LE21L
;
4982 the_insn
.reloc
= R_HPPA
;
4983 the_insn
.format
= 14;
4987 /* Handle a 12 bit branch displacement. */
4989 the_insn
.field_selector
= pa_chk_field_selector (&s
);
4993 if (!the_insn
.exp
.X_add_symbol
4994 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
4997 num
= evaluate_absolute (&the_insn
);
5000 as_bad (_("Branch to unaligned address"));
5003 if (the_insn
.exp
.X_add_symbol
)
5005 CHECK_FIELD (num
, 8191, -8192, 0);
5006 opcode
|= re_assemble_12 (num
>> 2);
5011 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
5012 the_insn
.format
= 12;
5013 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
5014 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
5019 /* Handle a 17 bit branch displacement. */
5021 the_insn
.field_selector
= pa_chk_field_selector (&s
);
5025 if (!the_insn
.exp
.X_add_symbol
5026 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
5029 num
= evaluate_absolute (&the_insn
);
5032 as_bad (_("Branch to unaligned address"));
5035 if (the_insn
.exp
.X_add_symbol
)
5037 CHECK_FIELD (num
, 262143, -262144, 0);
5038 opcode
|= re_assemble_17 (num
>> 2);
5043 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
5044 the_insn
.format
= 17;
5045 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
5046 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
5050 /* Handle a 22 bit branch displacement. */
5052 the_insn
.field_selector
= pa_chk_field_selector (&s
);
5056 if (!the_insn
.exp
.X_add_symbol
5057 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
5060 num
= evaluate_absolute (&the_insn
);
5063 as_bad (_("Branch to unaligned address"));
5066 if (the_insn
.exp
.X_add_symbol
)
5068 CHECK_FIELD (num
, 8388607, -8388608, 0);
5069 opcode
|= re_assemble_22 (num
>> 2);
5073 the_insn
.reloc
= R_HPPA_PCREL_CALL
;
5074 the_insn
.format
= 22;
5075 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
5076 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
5080 /* Handle an absolute 17 bit branch target. */
5082 the_insn
.field_selector
= pa_chk_field_selector (&s
);
5086 if (!the_insn
.exp
.X_add_symbol
5087 || !strcmp (S_GET_NAME (the_insn
.exp
.X_add_symbol
),
5090 num
= evaluate_absolute (&the_insn
);
5093 as_bad (_("Branch to unaligned address"));
5096 if (the_insn
.exp
.X_add_symbol
)
5098 CHECK_FIELD (num
, 262143, -262144, 0);
5099 opcode
|= re_assemble_17 (num
>> 2);
5104 the_insn
.reloc
= R_HPPA_ABS_CALL
;
5105 the_insn
.format
= 17;
5106 the_insn
.arg_reloc
= last_call_desc
.arg_reloc
;
5107 memset (&last_call_desc
, 0, sizeof (struct call_desc
));
5111 /* Handle '%r1' implicit operand of addil instruction. */
5113 if (*s
== ',' && *(s
+ 1) == '%' && *(s
+ 3) == '1'
5114 && (*(s
+ 2) == 'r' || *(s
+ 2) == 'R'))
5122 /* Handle '%sr0,%r31' implicit operand of be,l instruction. */
5124 if (strncasecmp (s
, "%sr0,%r31", 9) != 0)
5129 /* Handle immediate value of 0 for ordered load/store instructions. */
5136 /* Handle a 2 bit shift count at 25. */
5138 num
= pa_get_absolute_expression (&the_insn
, &s
);
5139 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5142 CHECK_FIELD (num
, 3, 1, strict
);
5143 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
5145 /* Handle a 4 bit shift count at 25. */
5147 num
= pa_get_absolute_expression (&the_insn
, &s
);
5148 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5151 CHECK_FIELD (num
, 15, 0, strict
);
5152 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
5154 /* Handle a 5 bit shift count at 26. */
5156 num
= pa_get_absolute_expression (&the_insn
, &s
);
5157 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5160 CHECK_FIELD (num
, 31, 0, strict
);
5161 INSERT_FIELD_AND_CONTINUE (opcode
, 31 - num
, 5);
5163 /* Handle a 6 bit shift count at 20,22:26. */
5165 num
= pa_get_absolute_expression (&the_insn
, &s
);
5166 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5169 CHECK_FIELD (num
, 63, 0, strict
);
5171 opcode
|= (num
& 0x20) << 6;
5172 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
5174 /* Handle a 6 bit field length at 23,27:31. */
5177 num
= pa_get_absolute_expression (&the_insn
, &s
);
5178 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5181 CHECK_FIELD (num
, 64, 1, strict
);
5183 opcode
|= (num
& 0x20) << 3;
5184 num
= 31 - (num
& 0x1f);
5185 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
5187 /* Handle a 6 bit field length at 19,27:31. */
5189 num
= pa_get_absolute_expression (&the_insn
, &s
);
5190 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5193 CHECK_FIELD (num
, 64, 1, strict
);
5195 opcode
|= (num
& 0x20) << 7;
5196 num
= 31 - (num
& 0x1f);
5197 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
5199 /* Handle a 5 bit bit position at 26. */
5201 num
= pa_get_absolute_expression (&the_insn
, &s
);
5202 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5205 CHECK_FIELD (num
, 31, 0, strict
);
5206 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 5);
5208 /* Handle a 6 bit bit position at 20,22:26. */
5210 num
= pa_get_absolute_expression (&the_insn
, &s
);
5211 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5214 CHECK_FIELD (num
, 63, 0, strict
);
5215 opcode
|= (num
& 0x20) << 6;
5216 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 5);
5218 /* Handle a 5 bit immediate at 10 with 'd' as the complement
5219 of the high bit of the immediate. */
5221 num
= pa_get_absolute_expression (&the_insn
, &s
);
5222 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5225 CHECK_FIELD (num
, 63, 0, strict
);
5229 opcode
|= (1 << 13);
5230 INSERT_FIELD_AND_CONTINUE (opcode
, num
& 0x1f, 21);
5232 /* Handle a 5 bit immediate at 10. */
5234 num
= pa_get_absolute_expression (&the_insn
, &s
);
5235 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5238 CHECK_FIELD (num
, 31, 0, strict
);
5239 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
5241 /* Handle a 9 bit immediate at 28. */
5243 num
= pa_get_absolute_expression (&the_insn
, &s
);
5244 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5247 CHECK_FIELD (num
, 511, 1, strict
);
5248 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 3);
5250 /* Handle a 13 bit immediate at 18. */
5252 num
= pa_get_absolute_expression (&the_insn
, &s
);
5253 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5256 CHECK_FIELD (num
, 8191, 0, strict
);
5257 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 13);
5259 /* Handle a 26 bit immediate at 31. */
5261 num
= pa_get_absolute_expression (&the_insn
, &s
);
5262 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5265 CHECK_FIELD (num
, 67108863, 0, strict
);
5266 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
5268 /* Handle a 3 bit SFU identifier at 25. */
5271 as_bad (_("Invalid SFU identifier"));
5272 num
= pa_get_absolute_expression (&the_insn
, &s
);
5273 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5276 CHECK_FIELD (num
, 7, 0, strict
);
5277 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
5279 /* Handle a 20 bit SOP field for spop0. */
5281 num
= pa_get_absolute_expression (&the_insn
, &s
);
5282 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5285 CHECK_FIELD (num
, 1048575, 0, strict
);
5286 num
= (num
& 0x1f) | ((num
& 0x000fffe0) << 6);
5287 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
5289 /* Handle a 15bit SOP field for spop1. */
5291 num
= pa_get_absolute_expression (&the_insn
, &s
);
5292 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5295 CHECK_FIELD (num
, 32767, 0, strict
);
5296 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
5298 /* Handle a 10bit SOP field for spop3. */
5300 num
= pa_get_absolute_expression (&the_insn
, &s
);
5301 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5304 CHECK_FIELD (num
, 1023, 0, strict
);
5305 num
= (num
& 0x1f) | ((num
& 0x000003e0) << 6);
5306 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
5308 /* Handle a 15 bit SOP field for spop2. */
5310 num
= pa_get_absolute_expression (&the_insn
, &s
);
5311 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5314 CHECK_FIELD (num
, 32767, 0, strict
);
5315 num
= (num
& 0x1f) | ((num
& 0x00007fe0) << 6);
5316 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
5318 /* Handle a 3-bit co-processor ID field. */
5321 as_bad (_("Invalid COPR identifier"));
5322 num
= pa_get_absolute_expression (&the_insn
, &s
);
5323 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5326 CHECK_FIELD (num
, 7, 0, strict
);
5327 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
5329 /* Handle a 22bit SOP field for copr. */
5331 num
= pa_get_absolute_expression (&the_insn
, &s
);
5332 if (strict
&& the_insn
.exp
.X_op
!= O_constant
)
5335 CHECK_FIELD (num
, 4194303, 0, strict
);
5336 num
= (num
& 0x1f) | ((num
& 0x003fffe0) << 4);
5337 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
5339 /* Handle a source FP operand format completer. */
5341 if (*s
== ',' && *(s
+1) == 't')
5348 flag
= pa_parse_fp_cnv_format (&s
);
5349 the_insn
.fpof1
= flag
;
5350 if (flag
== W
|| flag
== UW
)
5352 if (flag
== DW
|| flag
== UDW
)
5354 if (flag
== QW
|| flag
== UQW
)
5356 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
5358 /* Handle a destination FP operand format completer. */
5360 /* pa_parse_format needs the ',' prefix. */
5362 flag
= pa_parse_fp_cnv_format (&s
);
5363 the_insn
.fpof2
= flag
;
5364 if (flag
== W
|| flag
== UW
)
5366 if (flag
== DW
|| flag
== UDW
)
5368 if (flag
== QW
|| flag
== UQW
)
5370 opcode
|= flag
<< 13;
5371 if (the_insn
.fpof1
== SGL
5372 || the_insn
.fpof1
== DBL
5373 || the_insn
.fpof1
== QUAD
)
5375 if (the_insn
.fpof2
== SGL
5376 || the_insn
.fpof2
== DBL
5377 || the_insn
.fpof2
== QUAD
)
5379 else if (the_insn
.fpof2
== W
5380 || the_insn
.fpof2
== DW
5381 || the_insn
.fpof2
== QW
)
5383 else if (the_insn
.fpof2
== UW
5384 || the_insn
.fpof2
== UDW
5385 || the_insn
.fpof2
== UQW
)
5390 else if (the_insn
.fpof1
== W
5391 || the_insn
.fpof1
== DW
5392 || the_insn
.fpof1
== QW
)
5394 if (the_insn
.fpof2
== SGL
5395 || the_insn
.fpof2
== DBL
5396 || the_insn
.fpof2
== QUAD
)
5401 else if (the_insn
.fpof1
== UW
5402 || the_insn
.fpof1
== UDW
5403 || the_insn
.fpof1
== UQW
)
5405 if (the_insn
.fpof2
== SGL
5406 || the_insn
.fpof2
== DBL
5407 || the_insn
.fpof2
== QUAD
)
5412 flag
|= the_insn
.trunc
;
5413 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 15);
5415 /* Handle a source FP operand format completer. */
5417 flag
= pa_parse_fp_format (&s
);
5418 the_insn
.fpof1
= flag
;
5419 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
5421 /* Handle a destination FP operand format completer. */
5423 /* pa_parse_format needs the ',' prefix. */
5425 flag
= pa_parse_fp_format (&s
);
5426 the_insn
.fpof2
= flag
;
5427 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 13);
5429 /* Handle a source FP operand format completer at 20. */
5431 flag
= pa_parse_fp_format (&s
);
5432 the_insn
.fpof1
= flag
;
5433 INSERT_FIELD_AND_CONTINUE (opcode
, flag
, 11);
5435 /* Handle a floating point operand format at 26.
5436 Only allows single and double precision. */
5438 flag
= pa_parse_fp_format (&s
);
5444 the_insn
.fpof1
= flag
;
5450 as_bad (_("Invalid Floating Point Operand Format."));
5454 /* Handle all floating point registers. */
5458 /* Float target register. */
5460 if (!pa_parse_number (&s
, 3))
5462 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5463 CHECK_FIELD (num
, 31, 0, 0);
5464 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
5466 /* Float target register with L/R selection. */
5469 if (!pa_parse_number (&s
, 1))
5471 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5472 CHECK_FIELD (num
, 31, 0, 0);
5475 /* 0x30 opcodes are FP arithmetic operation opcodes
5476 and need to be turned into 0x38 opcodes. This
5477 is not necessary for loads/stores. */
5478 if (need_pa11_opcode ()
5479 && ((opcode
& 0xfc000000) == 0x30000000))
5482 opcode
|= (pa_number
& FP_REG_RSEL
? 1 << 6 : 0);
5486 /* Float operand 1. */
5489 if (!pa_parse_number (&s
, 1))
5491 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5492 CHECK_FIELD (num
, 31, 0, 0);
5493 opcode
|= num
<< 21;
5494 if (need_pa11_opcode ())
5496 opcode
|= (pa_number
& FP_REG_RSEL
? 1 << 7 : 0);
5502 /* Float operand 1 with L/R selection. */
5506 if (!pa_parse_number (&s
, 1))
5508 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5509 CHECK_FIELD (num
, 31, 0, 0);
5510 opcode
|= num
<< 21;
5511 opcode
|= (pa_number
& FP_REG_RSEL
? 1 << 7 : 0);
5515 /* Float operand 2. */
5518 if (!pa_parse_number (&s
, 1))
5520 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5521 CHECK_FIELD (num
, 31, 0, 0);
5522 opcode
|= num
<< 16;
5523 if (need_pa11_opcode ())
5525 opcode
|= (pa_number
& FP_REG_RSEL
? 1 << 12 : 0);
5531 /* Float operand 2 with L/R selection. */
5534 if (!pa_parse_number (&s
, 1))
5536 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5537 CHECK_FIELD (num
, 31, 0, 0);
5538 opcode
|= num
<< 16;
5539 opcode
|= (pa_number
& FP_REG_RSEL
? 1 << 12 : 0);
5543 /* Float operand 3 for fmpyfadd, fmpynfadd. */
5546 if (!pa_parse_number (&s
, 1))
5548 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5549 CHECK_FIELD (num
, 31, 0, 0);
5550 opcode
|= (num
& 0x1c) << 11;
5551 opcode
|= (num
& 0x03) << 9;
5552 opcode
|= (pa_number
& FP_REG_RSEL
? 1 << 8 : 0);
5556 /* Float mult operand 1 for fmpyadd, fmpysub */
5559 if (!pa_parse_number (&s
, 1))
5561 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5562 CHECK_FIELD (num
, 31, 0, 0);
5563 if (the_insn
.fpof1
== SGL
)
5567 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
5571 num
|= (pa_number
& FP_REG_RSEL
? 1 << 4 : 0);
5573 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 21);
5576 /* Float mult operand 2 for fmpyadd, fmpysub */
5579 if (!pa_parse_number (&s
, 1))
5581 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5582 CHECK_FIELD (num
, 31, 0, 0);
5583 if (the_insn
.fpof1
== SGL
)
5587 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
5591 num
|= (pa_number
& FP_REG_RSEL
? 1 << 4 : 0);
5593 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
5596 /* Float mult target for fmpyadd, fmpysub */
5599 if (!pa_parse_number (&s
, 1))
5601 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5602 CHECK_FIELD (num
, 31, 0, 0);
5603 if (the_insn
.fpof1
== SGL
)
5607 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
5611 num
|= (pa_number
& FP_REG_RSEL
? 1 << 4 : 0);
5613 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 0);
5616 /* Float add operand 1 for fmpyadd, fmpysub */
5619 if (!pa_parse_number (&s
, 1))
5621 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5622 CHECK_FIELD (num
, 31, 0, 0);
5623 if (the_insn
.fpof1
== SGL
)
5627 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
5631 num
|= (pa_number
& FP_REG_RSEL
? 1 << 4 : 0);
5633 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 6);
5636 /* Float add target for fmpyadd, fmpysub */
5639 if (!pa_parse_number (&s
, 1))
5641 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5642 CHECK_FIELD (num
, 31, 0, 0);
5643 if (the_insn
.fpof1
== SGL
)
5647 as_bad (_("Invalid register for single precision fmpyadd or fmpysub"));
5651 num
|= (pa_number
& FP_REG_RSEL
? 1 << 4 : 0);
5653 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 11);
5656 /* Handle L/R register halves like 'x'. */
5660 if (!pa_parse_number (&s
, 1))
5662 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5663 CHECK_FIELD (num
, 31, 0, 0);
5664 opcode
|= num
<< 16;
5665 if (need_pa11_opcode ())
5667 opcode
|= (pa_number
& FP_REG_RSEL
? 1 << 1 : 0);
5672 /* Float target register (PA 2.0 wide). */
5674 if (!pa_parse_number (&s
, 3))
5676 num
= (pa_number
& ~FP_REG_RSEL
) - FP_REG_BASE
;
5677 CHECK_FIELD (num
, 31, 0, 0);
5678 INSERT_FIELD_AND_CONTINUE (opcode
, num
, 16);
5691 /* If this instruction is specific to a particular architecture,
5692 then set a new architecture. This automatic promotion crud is
5693 for compatibility with HP's old assemblers only. */
5695 && bfd_get_mach (stdoutput
) < insn
->arch
5696 && !bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, insn
->arch
))
5698 as_warn (_("could not update architecture and machine"));
5703 /* Check if the args matched. */
5706 if (&insn
[1] - pa_opcodes
< (int) NUMOPCODES
5707 && !strcmp (insn
->name
, insn
[1].name
))
5715 as_bad (_("Invalid operands %s"), error_message
);
5722 the_insn
.opcode
= opcode
;
5725 /* Assemble a single instruction storing it into a frag. */
5728 md_assemble (char *str
)
5732 /* The had better be something to assemble. */
5735 /* If we are within a procedure definition, make sure we've
5736 defined a label for the procedure; handle case where the
5737 label was defined after the .PROC directive.
5739 Note there's not need to diddle with the segment or fragment
5740 for the label symbol in this case. We have already switched
5741 into the new $CODE$ subspace at this point. */
5742 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
5744 label_symbol_struct
*label_symbol
= pa_get_label ();
5748 if (label_symbol
->lss_label
)
5750 last_call_info
->start_symbol
= label_symbol
->lss_label
;
5751 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
5754 /* Also handle allocation of a fixup to hold the unwind
5755 information when the label appears after the proc/procend. */
5756 if (within_entry_exit
)
5761 where
= frag_more (0);
5762 u
= UNWIND_LOW32 (&last_call_info
->ci_unwind
.descriptor
);
5763 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5764 NULL
, (offsetT
) 0, NULL
,
5765 0, R_HPPA_ENTRY
, e_fsel
, 0, 0, u
);
5770 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
5773 as_bad (_("Missing function name for .PROC"));
5776 /* Assemble the instruction. Results are saved into "the_insn". */
5779 /* Get somewhere to put the assembled instruction. */
5782 /* Output the opcode. */
5783 md_number_to_chars (to
, the_insn
.opcode
, 4);
5785 /* If necessary output more stuff. */
5786 if (the_insn
.reloc
!= R_HPPA_NONE
)
5787 fix_new_hppa (frag_now
, (to
- frag_now
->fr_literal
), 4, NULL
,
5788 (offsetT
) 0, &the_insn
.exp
, the_insn
.pcrel
,
5789 the_insn
.reloc
, the_insn
.field_selector
,
5790 the_insn
.format
, the_insn
.arg_reloc
, 0);
5793 dwarf2_emit_insn (4);
5798 /* Handle an alignment directive. Special so that we can update the
5799 alignment of the subspace if necessary. */
5801 pa_align (int bytes
)
5803 /* We must have a valid space and subspace. */
5804 pa_check_current_space_and_subspace ();
5806 /* Let the generic gas code do most of the work. */
5807 s_align_bytes (bytes
);
5809 /* If bytes is a power of 2, then update the current subspace's
5810 alignment if necessary. */
5811 if (exact_log2 (bytes
) != -1)
5812 record_alignment (current_subspace
->ssd_seg
, exact_log2 (bytes
));
5816 /* Handle a .BLOCK type pseudo-op. */
5819 pa_block (int z ATTRIBUTE_UNUSED
)
5821 unsigned int temp_size
;
5824 /* We must have a valid space and subspace. */
5825 pa_check_current_space_and_subspace ();
5828 temp_size
= get_absolute_expression ();
5830 if (temp_size
> 0x3FFFFFFF)
5832 as_bad (_("Argument to .BLOCK/.BLOCKZ must be between 0 and 0x3fffffff"));
5837 /* Always fill with zeros, that's what the HP assembler does. */
5838 char *p
= frag_var (rs_fill
, 1, 1, 0, NULL
, temp_size
, NULL
);
5842 pa_undefine_label ();
5843 demand_empty_rest_of_line ();
5846 /* Handle a .begin_brtab and .end_brtab pseudo-op. */
5849 pa_brtab (int begin ATTRIBUTE_UNUSED
)
5853 /* The BRTAB relocations are only available in SOM (to denote
5854 the beginning and end of branch tables). */
5855 char *where
= frag_more (0);
5857 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5858 NULL
, (offsetT
) 0, NULL
,
5859 0, begin
? R_HPPA_BEGIN_BRTAB
: R_HPPA_END_BRTAB
,
5863 demand_empty_rest_of_line ();
5866 /* Handle a .begin_try and .end_try pseudo-op. */
5869 pa_try (int begin ATTRIBUTE_UNUSED
)
5873 char *where
= frag_more (0);
5878 /* The TRY relocations are only available in SOM (to denote
5879 the beginning and end of exception handling regions). */
5881 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
5882 NULL
, (offsetT
) 0, begin
? NULL
: &exp
,
5883 0, begin
? R_HPPA_BEGIN_TRY
: R_HPPA_END_TRY
,
5887 demand_empty_rest_of_line ();
5890 /* Do the dirty work of building a call descriptor which describes
5891 where the caller placed arguments to a function call. */
5894 pa_call_args (struct call_desc
*call_desc
)
5897 unsigned int temp
, arg_reloc
;
5899 while (!is_end_of_statement ())
5901 name
= input_line_pointer
;
5902 c
= get_symbol_end ();
5903 /* Process a source argument. */
5904 if ((strncasecmp (name
, "argw", 4) == 0))
5906 temp
= atoi (name
+ 4);
5907 p
= input_line_pointer
;
5909 input_line_pointer
++;
5910 name
= input_line_pointer
;
5911 c
= get_symbol_end ();
5912 arg_reloc
= pa_build_arg_reloc (name
);
5913 call_desc
->arg_reloc
|= pa_align_arg_reloc (temp
, arg_reloc
);
5915 /* Process a return value. */
5916 else if ((strncasecmp (name
, "rtnval", 6) == 0))
5918 p
= input_line_pointer
;
5920 input_line_pointer
++;
5921 name
= input_line_pointer
;
5922 c
= get_symbol_end ();
5923 arg_reloc
= pa_build_arg_reloc (name
);
5924 call_desc
->arg_reloc
|= (arg_reloc
& 0x3);
5928 as_bad (_("Invalid .CALL argument: %s"), name
);
5930 p
= input_line_pointer
;
5932 if (!is_end_of_statement ())
5933 input_line_pointer
++;
5937 /* Handle a .CALL pseudo-op. This involves storing away information
5938 about where arguments are to be found so the linker can detect
5939 (and correct) argument location mismatches between caller and callee. */
5942 pa_call (int unused ATTRIBUTE_UNUSED
)
5945 /* We must have a valid space and subspace. */
5946 pa_check_current_space_and_subspace ();
5949 pa_call_args (&last_call_desc
);
5950 demand_empty_rest_of_line ();
5953 /* Return TRUE if FRAG1 and FRAG2 are the same. */
5956 is_same_frag (fragS
*frag1
, fragS
*frag2
)
5961 else if (frag2
== NULL
)
5963 else if (frag1
== frag2
)
5965 else if (frag2
->fr_type
== rs_fill
&& frag2
->fr_fix
== 0)
5966 return (is_same_frag (frag1
, frag2
->fr_next
));
5972 /* Build an entry in the UNWIND subspace from the given function
5973 attributes in CALL_INFO. This is not needed for SOM as using
5974 R_ENTRY and R_EXIT relocations allow the linker to handle building
5975 of the unwind spaces. */
5978 pa_build_unwind_subspace (struct call_info
*call_info
)
5980 asection
*seg
, *save_seg
;
5981 subsegT save_subseg
;
5982 unsigned int unwind
;
5986 if ((bfd_get_section_flags (stdoutput
, now_seg
)
5987 & (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
))
5988 != (SEC_ALLOC
| SEC_LOAD
| SEC_READONLY
))
5991 reloc
= R_PARISC_SEGREL32
;
5993 save_subseg
= now_subseg
;
5994 /* Get into the right seg/subseg. This may involve creating
5995 the seg the first time through. Make sure to have the
5996 old seg/subseg so that we can reset things when we are done. */
5997 seg
= bfd_get_section_by_name (stdoutput
, UNWIND_SECTION_NAME
);
5998 if (seg
== ASEC_NULL
)
6000 seg
= subseg_new (UNWIND_SECTION_NAME
, 0);
6001 bfd_set_section_flags (stdoutput
, seg
,
6002 SEC_READONLY
| SEC_HAS_CONTENTS
6003 | SEC_LOAD
| SEC_RELOC
| SEC_ALLOC
| SEC_DATA
);
6004 bfd_set_section_alignment (stdoutput
, seg
, 2);
6007 subseg_set (seg
, 0);
6009 /* Get some space to hold relocation information for the unwind
6013 /* Relocation info. for start offset of the function. */
6014 md_number_to_chars (p
, 0, 4);
6015 fix_new_hppa (frag_now
, p
- frag_now
->fr_literal
, 4,
6016 call_info
->start_symbol
, (offsetT
) 0,
6017 (expressionS
*) NULL
, 0, reloc
,
6020 /* Relocation info. for end offset of the function.
6022 Because we allow reductions of 32bit relocations for ELF, this will be
6023 reduced to section_sym + offset which avoids putting the temporary
6024 symbol into the symbol table. It (should) end up giving the same
6025 value as call_info->start_symbol + function size once the linker is
6026 finished with its work. */
6027 md_number_to_chars (p
+ 4, 0, 4);
6028 fix_new_hppa (frag_now
, p
+ 4 - frag_now
->fr_literal
, 4,
6029 call_info
->end_symbol
, (offsetT
) 0,
6030 (expressionS
*) NULL
, 0, reloc
,
6033 /* Dump the descriptor. */
6034 unwind
= UNWIND_LOW32 (&call_info
->ci_unwind
.descriptor
);
6035 md_number_to_chars (p
+ 8, unwind
, 4);
6037 unwind
= UNWIND_HIGH32 (&call_info
->ci_unwind
.descriptor
);
6038 md_number_to_chars (p
+ 12, unwind
, 4);
6040 /* Return back to the original segment/subsegment. */
6041 subseg_set (save_seg
, save_subseg
);
6045 /* Process a .CALLINFO pseudo-op. This information is used later
6046 to build unwind descriptors and maybe one day to support
6047 .ENTER and .LEAVE. */
6050 pa_callinfo (int unused ATTRIBUTE_UNUSED
)
6056 /* We must have a valid space and subspace. */
6057 pa_check_current_space_and_subspace ();
6060 /* .CALLINFO must appear within a procedure definition. */
6061 if (!within_procedure
)
6062 as_bad (_(".callinfo is not within a procedure definition"));
6064 /* Mark the fact that we found the .CALLINFO for the
6065 current procedure. */
6066 callinfo_found
= TRUE
;
6068 /* Iterate over the .CALLINFO arguments. */
6069 while (!is_end_of_statement ())
6071 name
= input_line_pointer
;
6072 c
= get_symbol_end ();
6073 /* Frame size specification. */
6074 if ((strncasecmp (name
, "frame", 5) == 0))
6076 p
= input_line_pointer
;
6078 input_line_pointer
++;
6079 temp
= get_absolute_expression ();
6080 if ((temp
& 0x3) != 0)
6082 as_bad (_("FRAME parameter must be a multiple of 8: %d\n"), temp
);
6086 /* callinfo is in bytes and unwind_desc is in 8 byte units. */
6087 last_call_info
->ci_unwind
.descriptor
.frame_size
= temp
/ 8;
6090 /* Entry register (GR, GR and SR) specifications. */
6091 else if ((strncasecmp (name
, "entry_gr", 8) == 0))
6093 p
= input_line_pointer
;
6095 input_line_pointer
++;
6096 temp
= get_absolute_expression ();
6097 /* The HP assembler accepts 19 as the high bound for ENTRY_GR
6098 even though %r19 is caller saved. I think this is a bug in
6099 the HP assembler, and we are not going to emulate it. */
6100 if (temp
< 3 || temp
> 18)
6101 as_bad (_("Value for ENTRY_GR must be in the range 3..18\n"));
6102 last_call_info
->ci_unwind
.descriptor
.entry_gr
= temp
- 2;
6104 else if ((strncasecmp (name
, "entry_fr", 8) == 0))
6106 p
= input_line_pointer
;
6108 input_line_pointer
++;
6109 temp
= get_absolute_expression ();
6110 /* Similarly the HP assembler takes 31 as the high bound even
6111 though %fr21 is the last callee saved floating point register. */
6112 if (temp
< 12 || temp
> 21)
6113 as_bad (_("Value for ENTRY_FR must be in the range 12..21\n"));
6114 last_call_info
->ci_unwind
.descriptor
.entry_fr
= temp
- 11;
6116 else if ((strncasecmp (name
, "entry_sr", 8) == 0))
6118 p
= input_line_pointer
;
6120 input_line_pointer
++;
6121 temp
= get_absolute_expression ();
6123 as_bad (_("Value for ENTRY_SR must be 3\n"));
6125 /* Note whether or not this function performs any calls. */
6126 else if ((strncasecmp (name
, "calls", 5) == 0) ||
6127 (strncasecmp (name
, "caller", 6) == 0))
6129 p
= input_line_pointer
;
6132 else if ((strncasecmp (name
, "no_calls", 8) == 0))
6134 p
= input_line_pointer
;
6137 /* Should RP be saved into the stack. */
6138 else if ((strncasecmp (name
, "save_rp", 7) == 0))
6140 p
= input_line_pointer
;
6142 last_call_info
->ci_unwind
.descriptor
.save_rp
= 1;
6144 /* Likewise for SP. */
6145 else if ((strncasecmp (name
, "save_sp", 7) == 0))
6147 p
= input_line_pointer
;
6149 last_call_info
->ci_unwind
.descriptor
.save_sp
= 1;
6151 /* Is this an unwindable procedure. If so mark it so
6152 in the unwind descriptor. */
6153 else if ((strncasecmp (name
, "no_unwind", 9) == 0))
6155 p
= input_line_pointer
;
6157 last_call_info
->ci_unwind
.descriptor
.cannot_unwind
= 1;
6159 /* Is this an interrupt routine. If so mark it in the
6160 unwind descriptor. */
6161 else if ((strncasecmp (name
, "hpux_int", 7) == 0))
6163 p
= input_line_pointer
;
6165 last_call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 1;
6167 /* Is this a millicode routine. "millicode" isn't in my
6168 assembler manual, but my copy is old. The HP assembler
6169 accepts it, and there's a place in the unwind descriptor
6170 to drop the information, so we'll accept it too. */
6171 else if ((strncasecmp (name
, "millicode", 9) == 0))
6173 p
= input_line_pointer
;
6175 last_call_info
->ci_unwind
.descriptor
.millicode
= 1;
6179 as_bad (_("Invalid .CALLINFO argument: %s"), name
);
6180 *input_line_pointer
= c
;
6182 if (!is_end_of_statement ())
6183 input_line_pointer
++;
6186 demand_empty_rest_of_line ();
6189 #if !(defined (OBJ_ELF) && (defined (TE_LINUX) || defined (TE_NetBSD)))
6190 /* Switch to the text space. Like s_text, but delete our
6191 label when finished. */
6194 pa_text (int unused ATTRIBUTE_UNUSED
)
6197 current_space
= is_defined_space ("$TEXT$");
6199 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6203 pa_undefine_label ();
6206 /* Switch to the data space. As usual delete our label. */
6209 pa_data (int unused ATTRIBUTE_UNUSED
)
6212 current_space
= is_defined_space ("$PRIVATE$");
6214 = pa_subsegment_to_subspace (current_space
->sd_seg
, 0);
6217 pa_undefine_label ();
6220 /* This is different than the standard GAS s_comm(). On HP9000/800 machines,
6221 the .comm pseudo-op has the following symtax:
6223 <label> .comm <length>
6225 where <label> is optional and is a symbol whose address will be the start of
6226 a block of memory <length> bytes long. <length> must be an absolute
6227 expression. <length> bytes will be allocated in the current space
6230 Also note the label may not even be on the same line as the .comm.
6232 This difference in syntax means the colon function will be called
6233 on the symbol before we arrive in pa_comm. colon will set a number
6234 of attributes of the symbol that need to be fixed here. In particular
6235 the value, section pointer, fragment pointer, flags, etc. What
6238 This also makes error detection all but impossible. */
6241 pa_comm (int unused ATTRIBUTE_UNUSED
)
6245 label_symbol_struct
*label_symbol
= pa_get_label ();
6248 symbol
= label_symbol
->lss_label
;
6253 size
= get_absolute_expression ();
6257 symbol_get_bfdsym (symbol
)->flags
|= BSF_OBJECT
;
6258 S_SET_VALUE (symbol
, size
);
6259 S_SET_SEGMENT (symbol
, bfd_com_section_ptr
);
6260 S_SET_EXTERNAL (symbol
);
6262 /* colon() has already set the frag to the current location in the
6263 current subspace; we need to reset the fragment to the zero address
6264 fragment. We also need to reset the segment pointer. */
6265 symbol_set_frag (symbol
, &zero_address_frag
);
6267 demand_empty_rest_of_line ();
6269 #endif /* !(defined (OBJ_ELF) && (defined (TE_LINUX) || defined (TE_NetBSD))) */
6271 /* Process a .END pseudo-op. */
6274 pa_end (int unused ATTRIBUTE_UNUSED
)
6276 demand_empty_rest_of_line ();
6279 /* Process a .ENTER pseudo-op. This is not supported. */
6282 pa_enter (int unused ATTRIBUTE_UNUSED
)
6285 /* We must have a valid space and subspace. */
6286 pa_check_current_space_and_subspace ();
6289 as_bad (_("The .ENTER pseudo-op is not supported"));
6290 demand_empty_rest_of_line ();
6293 /* Process a .ENTRY pseudo-op. .ENTRY marks the beginning of the
6297 pa_entry (int unused ATTRIBUTE_UNUSED
)
6300 /* We must have a valid space and subspace. */
6301 pa_check_current_space_and_subspace ();
6304 if (!within_procedure
)
6305 as_bad (_("Misplaced .entry. Ignored."));
6308 if (!callinfo_found
)
6309 as_bad (_("Missing .callinfo."));
6311 demand_empty_rest_of_line ();
6312 within_entry_exit
= TRUE
;
6315 /* SOM defers building of unwind descriptors until the link phase.
6316 The assembler is responsible for creating an R_ENTRY relocation
6317 to mark the beginning of a region and hold the unwind bits, and
6318 for creating an R_EXIT relocation to mark the end of the region.
6320 FIXME. ELF should be using the same conventions! The problem
6321 is an unwind requires too much relocation space. Hmmm. Maybe
6322 if we split the unwind bits up between the relocations which
6323 denote the entry and exit points. */
6324 if (last_call_info
->start_symbol
!= NULL
)
6329 where
= frag_more (0);
6330 u
= UNWIND_LOW32 (&last_call_info
->ci_unwind
.descriptor
);
6331 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
6332 NULL
, (offsetT
) 0, NULL
,
6333 0, R_HPPA_ENTRY
, e_fsel
, 0, 0, u
);
6338 /* Silly nonsense for pa_equ. The only half-sensible use for this is
6339 being able to subtract two register symbols that specify a range of
6340 registers, to get the size of the range. */
6341 static int fudge_reg_expressions
;
6344 hppa_force_reg_syms_absolute (expressionS
*resultP
,
6345 operatorT op ATTRIBUTE_UNUSED
,
6346 expressionS
*rightP
)
6348 if (fudge_reg_expressions
6349 && rightP
->X_op
== O_register
6350 && resultP
->X_op
== O_register
)
6352 rightP
->X_op
= O_constant
;
6353 resultP
->X_op
= O_constant
;
6355 return 0; /* Continue normal expr handling. */
6358 /* Handle a .EQU pseudo-op. */
6363 label_symbol_struct
*label_symbol
= pa_get_label ();
6368 symbol
= label_symbol
->lss_label
;
6372 if (!pa_parse_number (&input_line_pointer
, 0))
6373 as_bad (_(".REG expression must be a register"));
6374 S_SET_VALUE (symbol
, pa_number
);
6375 S_SET_SEGMENT (symbol
, reg_section
);
6382 fudge_reg_expressions
= 1;
6383 seg
= expression (&exp
);
6384 fudge_reg_expressions
= 0;
6385 if (exp
.X_op
!= O_constant
6386 && exp
.X_op
!= O_register
)
6388 if (exp
.X_op
!= O_absent
)
6389 as_bad (_("bad or irreducible absolute expression; zero assumed"));
6390 exp
.X_add_number
= 0;
6391 seg
= absolute_section
;
6393 S_SET_VALUE (symbol
, (unsigned int) exp
.X_add_number
);
6394 S_SET_SEGMENT (symbol
, seg
);
6400 as_bad (_(".REG must use a label"));
6402 as_bad (_(".EQU must use a label"));
6405 pa_undefine_label ();
6406 demand_empty_rest_of_line ();
6410 /* Mark the end of a function so that it's possible to compute
6411 the size of the function in elf_hppa_final_processing. */
6414 hppa_elf_mark_end_of_function (void)
6416 /* ELF does not have EXIT relocations. All we do is create a
6417 temporary symbol marking the end of the function. */
6420 if (last_call_info
== NULL
|| last_call_info
->start_symbol
== NULL
)
6422 /* We have already warned about a missing label,
6423 or other problems. */
6427 name
= xmalloc (strlen ("L$\001end_")
6428 + strlen (S_GET_NAME (last_call_info
->start_symbol
))
6434 strcpy (name
, "L$\001end_");
6435 strcat (name
, S_GET_NAME (last_call_info
->start_symbol
));
6437 /* If we have a .exit followed by a .procend, then the
6438 symbol will have already been defined. */
6439 symbolP
= symbol_find (name
);
6442 /* The symbol has already been defined! This can
6443 happen if we have a .exit followed by a .procend.
6445 This is *not* an error. All we want to do is free
6446 the memory we just allocated for the name and continue. */
6451 /* symbol value should be the offset of the
6452 last instruction of the function */
6453 symbolP
= symbol_new (name
, now_seg
, (valueT
) (frag_now_fix () - 4),
6457 S_CLEAR_EXTERNAL (symbolP
);
6458 symbol_table_insert (symbolP
);
6462 last_call_info
->end_symbol
= symbolP
;
6464 as_bad (_("Symbol '%s' could not be created."), name
);
6468 as_bad (_("No memory for symbol name."));
6472 /* Helper function. Does processing for the end of a function. This
6473 usually involves creating some relocations or building special
6474 symbols to mark the end of the function. */
6481 where
= frag_more (0);
6484 /* Mark the end of the function, stuff away the location of the frag
6485 for the end of the function, and finally call pa_build_unwind_subspace
6486 to add an entry in the unwind table. */
6487 hppa_elf_mark_end_of_function ();
6488 pa_build_unwind_subspace (last_call_info
);
6490 /* SOM defers building of unwind descriptors until the link phase.
6491 The assembler is responsible for creating an R_ENTRY relocation
6492 to mark the beginning of a region and hold the unwind bits, and
6493 for creating an R_EXIT relocation to mark the end of the region.
6495 FIXME. ELF should be using the same conventions! The problem
6496 is an unwind requires too much relocation space. Hmmm. Maybe
6497 if we split the unwind bits up between the relocations which
6498 denote the entry and exit points. */
6499 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
6501 NULL
, 0, R_HPPA_EXIT
, e_fsel
, 0, 0,
6502 UNWIND_HIGH32 (&last_call_info
->ci_unwind
.descriptor
));
6506 /* Process a .EXIT pseudo-op. */
6509 pa_exit (int unused ATTRIBUTE_UNUSED
)
6512 /* We must have a valid space and subspace. */
6513 pa_check_current_space_and_subspace ();
6516 if (!within_procedure
)
6517 as_bad (_(".EXIT must appear within a procedure"));
6520 if (!callinfo_found
)
6521 as_bad (_("Missing .callinfo"));
6524 if (!within_entry_exit
)
6525 as_bad (_("No .ENTRY for this .EXIT"));
6528 within_entry_exit
= FALSE
;
6533 demand_empty_rest_of_line ();
6536 /* Helper function to process arguments to a .EXPORT pseudo-op. */
6539 pa_type_args (symbolS
*symbolP
, int is_export
)
6542 unsigned int temp
, arg_reloc
;
6543 pa_symbol_type type
= SYMBOL_TYPE_UNKNOWN
;
6544 asymbol
*bfdsym
= symbol_get_bfdsym (symbolP
);
6546 if (strncasecmp (input_line_pointer
, "absolute", 8) == 0)
6548 input_line_pointer
+= 8;
6549 bfdsym
->flags
&= ~BSF_FUNCTION
;
6550 S_SET_SEGMENT (symbolP
, bfd_abs_section_ptr
);
6551 type
= SYMBOL_TYPE_ABSOLUTE
;
6553 else if (strncasecmp (input_line_pointer
, "code", 4) == 0)
6555 input_line_pointer
+= 4;
6556 /* IMPORTing/EXPORTing CODE types for functions is meaningless for SOM,
6557 instead one should be IMPORTing/EXPORTing ENTRY types.
6559 Complain if one tries to EXPORT a CODE type since that's never
6560 done. Both GCC and HP C still try to IMPORT CODE types, so
6561 silently fix them to be ENTRY types. */
6562 if (S_IS_FUNCTION (symbolP
))
6565 as_tsktsk (_("Using ENTRY rather than CODE in export directive for %s"),
6566 S_GET_NAME (symbolP
));
6568 bfdsym
->flags
|= BSF_FUNCTION
;
6569 type
= SYMBOL_TYPE_ENTRY
;
6573 bfdsym
->flags
&= ~BSF_FUNCTION
;
6574 type
= SYMBOL_TYPE_CODE
;
6577 else if (strncasecmp (input_line_pointer
, "data", 4) == 0)
6579 input_line_pointer
+= 4;
6580 bfdsym
->flags
&= ~BSF_FUNCTION
;
6581 bfdsym
->flags
|= BSF_OBJECT
;
6582 type
= SYMBOL_TYPE_DATA
;
6584 else if ((strncasecmp (input_line_pointer
, "entry", 5) == 0))
6586 input_line_pointer
+= 5;
6587 bfdsym
->flags
|= BSF_FUNCTION
;
6588 type
= SYMBOL_TYPE_ENTRY
;
6590 else if (strncasecmp (input_line_pointer
, "millicode", 9) == 0)
6592 input_line_pointer
+= 9;
6593 bfdsym
->flags
|= BSF_FUNCTION
;
6596 elf_symbol_type
*elfsym
= (elf_symbol_type
*) bfdsym
;
6597 elfsym
->internal_elf_sym
.st_info
=
6598 ELF_ST_INFO (ELF_ST_BIND (elfsym
->internal_elf_sym
.st_info
),
6602 type
= SYMBOL_TYPE_MILLICODE
;
6604 else if (strncasecmp (input_line_pointer
, "plabel", 6) == 0)
6606 input_line_pointer
+= 6;
6607 bfdsym
->flags
&= ~BSF_FUNCTION
;
6608 type
= SYMBOL_TYPE_PLABEL
;
6610 else if (strncasecmp (input_line_pointer
, "pri_prog", 8) == 0)
6612 input_line_pointer
+= 8;
6613 bfdsym
->flags
|= BSF_FUNCTION
;
6614 type
= SYMBOL_TYPE_PRI_PROG
;
6616 else if (strncasecmp (input_line_pointer
, "sec_prog", 8) == 0)
6618 input_line_pointer
+= 8;
6619 bfdsym
->flags
|= BSF_FUNCTION
;
6620 type
= SYMBOL_TYPE_SEC_PROG
;
6623 /* SOM requires much more information about symbol types
6624 than BFD understands. This is how we get this information
6625 to the SOM BFD backend. */
6626 #ifdef obj_set_symbol_type
6627 obj_set_symbol_type (bfdsym
, (int) type
);
6630 /* Now that the type of the exported symbol has been handled,
6631 handle any argument relocation information. */
6632 while (!is_end_of_statement ())
6634 if (*input_line_pointer
== ',')
6635 input_line_pointer
++;
6636 name
= input_line_pointer
;
6637 c
= get_symbol_end ();
6638 /* Argument sources. */
6639 if ((strncasecmp (name
, "argw", 4) == 0))
6641 p
= input_line_pointer
;
6643 input_line_pointer
++;
6644 temp
= atoi (name
+ 4);
6645 name
= input_line_pointer
;
6646 c
= get_symbol_end ();
6647 arg_reloc
= pa_align_arg_reloc (temp
, pa_build_arg_reloc (name
));
6648 #if defined (OBJ_SOM) || defined (ELF_ARG_RELOC)
6649 symbol_arg_reloc_info (symbolP
) |= arg_reloc
;
6651 *input_line_pointer
= c
;
6653 /* The return value. */
6654 else if ((strncasecmp (name
, "rtnval", 6)) == 0)
6656 p
= input_line_pointer
;
6658 input_line_pointer
++;
6659 name
= input_line_pointer
;
6660 c
= get_symbol_end ();
6661 arg_reloc
= pa_build_arg_reloc (name
);
6662 #if defined (OBJ_SOM) || defined (ELF_ARG_RELOC)
6663 symbol_arg_reloc_info (symbolP
) |= arg_reloc
;
6665 *input_line_pointer
= c
;
6667 /* Privilege level. */
6668 else if ((strncasecmp (name
, "priv_lev", 8)) == 0)
6670 p
= input_line_pointer
;
6672 input_line_pointer
++;
6673 temp
= atoi (input_line_pointer
);
6675 ((obj_symbol_type
*) bfdsym
)->tc_data
.ap
.hppa_priv_level
= temp
;
6677 c
= get_symbol_end ();
6678 *input_line_pointer
= c
;
6682 as_bad (_("Undefined .EXPORT/.IMPORT argument (ignored): %s"), name
);
6683 p
= input_line_pointer
;
6686 if (!is_end_of_statement ())
6687 input_line_pointer
++;
6691 /* Process a .EXPORT directive. This makes functions external
6692 and provides information such as argument relocation entries
6696 pa_export (int unused ATTRIBUTE_UNUSED
)
6701 name
= input_line_pointer
;
6702 c
= get_symbol_end ();
6703 /* Make sure the given symbol exists. */
6704 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
6706 as_bad (_("Cannot define export symbol: %s\n"), name
);
6707 p
= input_line_pointer
;
6709 input_line_pointer
++;
6713 /* OK. Set the external bits and process argument relocations.
6714 For the HP, weak and global are not mutually exclusive.
6715 S_SET_EXTERNAL will not set BSF_GLOBAL if WEAK is set.
6716 Call S_SET_EXTERNAL to get the other processing. Manually
6717 set BSF_GLOBAL when we get back. */
6718 S_SET_EXTERNAL (symbol
);
6719 symbol_get_bfdsym (symbol
)->flags
|= BSF_GLOBAL
;
6720 p
= input_line_pointer
;
6722 if (!is_end_of_statement ())
6724 input_line_pointer
++;
6725 pa_type_args (symbol
, 1);
6729 demand_empty_rest_of_line ();
6732 /* Handle an .IMPORT pseudo-op. Any symbol referenced in a given
6733 assembly file must either be defined in the assembly file, or
6734 explicitly IMPORTED from another. */
6737 pa_import (int unused ATTRIBUTE_UNUSED
)
6742 name
= input_line_pointer
;
6743 c
= get_symbol_end ();
6745 symbol
= symbol_find (name
);
6746 /* Ugh. We might be importing a symbol defined earlier in the file,
6747 in which case all the code below will really screw things up
6748 (set the wrong segment, symbol flags & type, etc). */
6749 if (symbol
== NULL
|| !S_IS_DEFINED (symbol
))
6751 symbol
= symbol_find_or_make (name
);
6752 p
= input_line_pointer
;
6755 if (!is_end_of_statement ())
6757 input_line_pointer
++;
6758 pa_type_args (symbol
, 0);
6762 /* Sigh. To be compatible with the HP assembler and to help
6763 poorly written assembly code, we assign a type based on
6764 the current segment. Note only BSF_FUNCTION really
6765 matters, we do not need to set the full SYMBOL_TYPE_* info. */
6766 if (now_seg
== text_section
)
6767 symbol_get_bfdsym (symbol
)->flags
|= BSF_FUNCTION
;
6769 /* If the section is undefined, then the symbol is undefined
6770 Since this is an import, leave the section undefined. */
6771 S_SET_SEGMENT (symbol
, bfd_und_section_ptr
);
6776 /* The symbol was already defined. Just eat everything up to
6777 the end of the current statement. */
6778 while (!is_end_of_statement ())
6779 input_line_pointer
++;
6782 demand_empty_rest_of_line ();
6785 /* Handle a .LABEL pseudo-op. */
6788 pa_label (int unused ATTRIBUTE_UNUSED
)
6792 name
= input_line_pointer
;
6793 c
= get_symbol_end ();
6795 if (strlen (name
) > 0)
6798 p
= input_line_pointer
;
6803 as_warn (_("Missing label name on .LABEL"));
6806 if (!is_end_of_statement ())
6808 as_warn (_("extra .LABEL arguments ignored."));
6809 ignore_rest_of_line ();
6811 demand_empty_rest_of_line ();
6814 /* Handle a .LEAVE pseudo-op. This is not supported yet. */
6817 pa_leave (int unused ATTRIBUTE_UNUSED
)
6820 /* We must have a valid space and subspace. */
6821 pa_check_current_space_and_subspace ();
6824 as_bad (_("The .LEAVE pseudo-op is not supported"));
6825 demand_empty_rest_of_line ();
6828 /* Handle a .LEVEL pseudo-op. */
6831 pa_level (int unused ATTRIBUTE_UNUSED
)
6835 level
= input_line_pointer
;
6836 if (strncmp (level
, "1.0", 3) == 0)
6838 input_line_pointer
+= 3;
6839 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 10))
6840 as_warn (_("could not set architecture and machine"));
6842 else if (strncmp (level
, "1.1", 3) == 0)
6844 input_line_pointer
+= 3;
6845 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 11))
6846 as_warn (_("could not set architecture and machine"));
6848 else if (strncmp (level
, "2.0w", 4) == 0)
6850 input_line_pointer
+= 4;
6851 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 25))
6852 as_warn (_("could not set architecture and machine"));
6854 else if (strncmp (level
, "2.0", 3) == 0)
6856 input_line_pointer
+= 3;
6857 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, 20))
6858 as_warn (_("could not set architecture and machine"));
6862 as_bad (_("Unrecognized .LEVEL argument\n"));
6863 ignore_rest_of_line ();
6865 demand_empty_rest_of_line ();
6868 /* Handle a .ORIGIN pseudo-op. */
6871 pa_origin (int unused ATTRIBUTE_UNUSED
)
6874 /* We must have a valid space and subspace. */
6875 pa_check_current_space_and_subspace ();
6879 pa_undefine_label ();
6882 /* Handle a .PARAM pseudo-op. This is much like a .EXPORT, except it
6883 is for static functions. FIXME. Should share more code with .EXPORT. */
6886 pa_param (int unused ATTRIBUTE_UNUSED
)
6891 name
= input_line_pointer
;
6892 c
= get_symbol_end ();
6894 if ((symbol
= symbol_find_or_make (name
)) == NULL
)
6896 as_bad (_("Cannot define static symbol: %s\n"), name
);
6897 p
= input_line_pointer
;
6899 input_line_pointer
++;
6903 S_CLEAR_EXTERNAL (symbol
);
6904 p
= input_line_pointer
;
6906 if (!is_end_of_statement ())
6908 input_line_pointer
++;
6909 pa_type_args (symbol
, 0);
6913 demand_empty_rest_of_line ();
6916 /* Handle a .PROC pseudo-op. It is used to mark the beginning
6917 of a procedure from a syntactical point of view. */
6920 pa_proc (int unused ATTRIBUTE_UNUSED
)
6922 struct call_info
*call_info
;
6925 /* We must have a valid space and subspace. */
6926 pa_check_current_space_and_subspace ();
6929 if (within_procedure
)
6930 as_fatal (_("Nested procedures"));
6932 /* Reset global variables for new procedure. */
6933 callinfo_found
= FALSE
;
6934 within_procedure
= TRUE
;
6936 /* Create another call_info structure. */
6937 call_info
= xmalloc (sizeof (struct call_info
));
6940 as_fatal (_("Cannot allocate unwind descriptor\n"));
6942 memset (call_info
, 0, sizeof (struct call_info
));
6944 call_info
->ci_next
= NULL
;
6946 if (call_info_root
== NULL
)
6948 call_info_root
= call_info
;
6949 last_call_info
= call_info
;
6953 last_call_info
->ci_next
= call_info
;
6954 last_call_info
= call_info
;
6957 /* set up defaults on call_info structure */
6959 call_info
->ci_unwind
.descriptor
.cannot_unwind
= 0;
6960 call_info
->ci_unwind
.descriptor
.region_desc
= 1;
6961 call_info
->ci_unwind
.descriptor
.hpux_interrupt_marker
= 0;
6963 /* If we got a .PROC pseudo-op, we know that the function is defined
6964 locally. Make sure it gets into the symbol table. */
6966 label_symbol_struct
*label_symbol
= pa_get_label ();
6970 if (label_symbol
->lss_label
)
6972 last_call_info
->start_symbol
= label_symbol
->lss_label
;
6973 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
|= BSF_FUNCTION
;
6976 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
6979 last_call_info
->start_symbol
= NULL
;
6982 demand_empty_rest_of_line ();
6985 /* Process the syntactical end of a procedure. Make sure all the
6986 appropriate pseudo-ops were found within the procedure. */
6989 pa_procend (int unused ATTRIBUTE_UNUSED
)
6992 /* We must have a valid space and subspace. */
6993 pa_check_current_space_and_subspace ();
6996 /* If we are within a procedure definition, make sure we've
6997 defined a label for the procedure; handle case where the
6998 label was defined after the .PROC directive.
7000 Note there's not need to diddle with the segment or fragment
7001 for the label symbol in this case. We have already switched
7002 into the new $CODE$ subspace at this point. */
7003 if (within_procedure
&& last_call_info
->start_symbol
== NULL
)
7005 label_symbol_struct
*label_symbol
= pa_get_label ();
7009 if (label_symbol
->lss_label
)
7011 last_call_info
->start_symbol
= label_symbol
->lss_label
;
7012 symbol_get_bfdsym (label_symbol
->lss_label
)->flags
7015 /* Also handle allocation of a fixup to hold the unwind
7016 information when the label appears after the proc/procend. */
7017 if (within_entry_exit
)
7022 where
= frag_more (0);
7023 u
= UNWIND_LOW32 (&last_call_info
->ci_unwind
.descriptor
);
7024 fix_new_hppa (frag_now
, where
- frag_now
->fr_literal
, 0,
7025 NULL
, (offsetT
) 0, NULL
,
7026 0, R_HPPA_ENTRY
, e_fsel
, 0, 0, u
);
7031 as_bad (_("Missing function name for .PROC (corrupted label chain)"));
7034 as_bad (_("Missing function name for .PROC"));
7037 if (!within_procedure
)
7038 as_bad (_("misplaced .procend"));
7040 if (!callinfo_found
)
7041 as_bad (_("Missing .callinfo for this procedure"));
7043 if (within_entry_exit
)
7044 as_bad (_("Missing .EXIT for a .ENTRY"));
7047 /* ELF needs to mark the end of each function so that it can compute
7048 the size of the function (apparently its needed in the symbol table). */
7049 hppa_elf_mark_end_of_function ();
7052 within_procedure
= FALSE
;
7053 demand_empty_rest_of_line ();
7054 pa_undefine_label ();
7058 /* If VALUE is an exact power of two between zero and 2^31, then
7059 return log2 (VALUE). Else return -1. */
7062 exact_log2 (int value
)
7066 while ((1 << shift
) != value
&& shift
< 32)
7075 /* Check to make sure we have a valid space and subspace. */
7078 pa_check_current_space_and_subspace (void)
7080 if (current_space
== NULL
)
7081 as_fatal (_("Not in a space.\n"));
7083 if (current_subspace
== NULL
)
7084 as_fatal (_("Not in a subspace.\n"));
7087 /* Parse the parameters to a .SPACE directive; if CREATE_FLAG is nonzero,
7088 then create a new space entry to hold the information specified
7089 by the parameters to the .SPACE directive. */
7091 static sd_chain_struct
*
7092 pa_parse_space_stmt (char *space_name
, int create_flag
)
7094 char *name
, *ptemp
, c
;
7095 char loadable
, defined
, private, sort
;
7097 asection
*seg
= NULL
;
7098 sd_chain_struct
*space
;
7100 /* Load default values. */
7106 if (strcmp (space_name
, "$TEXT$") == 0)
7108 seg
= pa_def_spaces
[0].segment
;
7109 defined
= pa_def_spaces
[0].defined
;
7110 private = pa_def_spaces
[0].private;
7111 sort
= pa_def_spaces
[0].sort
;
7112 spnum
= pa_def_spaces
[0].spnum
;
7114 else if (strcmp (space_name
, "$PRIVATE$") == 0)
7116 seg
= pa_def_spaces
[1].segment
;
7117 defined
= pa_def_spaces
[1].defined
;
7118 private = pa_def_spaces
[1].private;
7119 sort
= pa_def_spaces
[1].sort
;
7120 spnum
= pa_def_spaces
[1].spnum
;
7123 if (!is_end_of_statement ())
7125 print_errors
= FALSE
;
7126 ptemp
= input_line_pointer
+ 1;
7127 /* First see if the space was specified as a number rather than
7128 as a name. According to the PA assembly manual the rest of
7129 the line should be ignored. */
7131 pa_parse_number (&ptemp
, 0);
7135 input_line_pointer
= ptemp
;
7139 while (!is_end_of_statement ())
7141 input_line_pointer
++;
7142 name
= input_line_pointer
;
7143 c
= get_symbol_end ();
7144 if ((strncasecmp (name
, "spnum", 5) == 0))
7146 *input_line_pointer
= c
;
7147 input_line_pointer
++;
7148 spnum
= get_absolute_expression ();
7150 else if ((strncasecmp (name
, "sort", 4) == 0))
7152 *input_line_pointer
= c
;
7153 input_line_pointer
++;
7154 sort
= get_absolute_expression ();
7156 else if ((strncasecmp (name
, "unloadable", 10) == 0))
7158 *input_line_pointer
= c
;
7161 else if ((strncasecmp (name
, "notdefined", 10) == 0))
7163 *input_line_pointer
= c
;
7166 else if ((strncasecmp (name
, "private", 7) == 0))
7168 *input_line_pointer
= c
;
7173 as_bad (_("Invalid .SPACE argument"));
7174 *input_line_pointer
= c
;
7175 if (!is_end_of_statement ())
7176 input_line_pointer
++;
7180 print_errors
= TRUE
;
7183 if (create_flag
&& seg
== NULL
)
7184 seg
= subseg_new (space_name
, 0);
7186 /* If create_flag is nonzero, then create the new space with
7187 the attributes computed above. Else set the values in
7188 an already existing space -- this can only happen for
7189 the first occurrence of a built-in space. */
7191 space
= create_new_space (space_name
, spnum
, loadable
, defined
,
7192 private, sort
, seg
, 1);
7195 space
= is_defined_space (space_name
);
7196 SPACE_SPNUM (space
) = spnum
;
7197 SPACE_DEFINED (space
) = defined
& 1;
7198 SPACE_USER_DEFINED (space
) = 1;
7201 #ifdef obj_set_section_attributes
7202 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
7208 /* Handle a .SPACE pseudo-op; this switches the current space to the
7209 given space, creating the new space if necessary. */
7212 pa_space (int unused ATTRIBUTE_UNUSED
)
7214 char *name
, c
, *space_name
, *save_s
;
7215 sd_chain_struct
*sd_chain
;
7217 if (within_procedure
)
7219 as_bad (_("Can\'t change spaces within a procedure definition. Ignored"));
7220 ignore_rest_of_line ();
7224 /* Check for some of the predefined spaces. FIXME: most of the code
7225 below is repeated several times, can we extract the common parts
7226 and place them into a subroutine or something similar? */
7227 /* FIXME Is this (and the next IF stmt) really right?
7228 What if INPUT_LINE_POINTER points to "$TEXT$FOO"? */
7229 if (strncmp (input_line_pointer
, "$TEXT$", 6) == 0)
7231 input_line_pointer
+= 6;
7232 sd_chain
= is_defined_space ("$TEXT$");
7233 if (sd_chain
== NULL
)
7234 sd_chain
= pa_parse_space_stmt ("$TEXT$", 1);
7235 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
7236 sd_chain
= pa_parse_space_stmt ("$TEXT$", 0);
7238 current_space
= sd_chain
;
7239 subseg_set (text_section
, sd_chain
->sd_last_subseg
);
7241 = pa_subsegment_to_subspace (text_section
,
7242 sd_chain
->sd_last_subseg
);
7243 demand_empty_rest_of_line ();
7246 if (strncmp (input_line_pointer
, "$PRIVATE$", 9) == 0)
7248 input_line_pointer
+= 9;
7249 sd_chain
= is_defined_space ("$PRIVATE$");
7250 if (sd_chain
== NULL
)
7251 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 1);
7252 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
7253 sd_chain
= pa_parse_space_stmt ("$PRIVATE$", 0);
7255 current_space
= sd_chain
;
7256 subseg_set (data_section
, sd_chain
->sd_last_subseg
);
7258 = pa_subsegment_to_subspace (data_section
,
7259 sd_chain
->sd_last_subseg
);
7260 demand_empty_rest_of_line ();
7263 if (!strncasecmp (input_line_pointer
,
7264 GDB_DEBUG_SPACE_NAME
,
7265 strlen (GDB_DEBUG_SPACE_NAME
)))
7267 input_line_pointer
+= strlen (GDB_DEBUG_SPACE_NAME
);
7268 sd_chain
= is_defined_space (GDB_DEBUG_SPACE_NAME
);
7269 if (sd_chain
== NULL
)
7270 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 1);
7271 else if (SPACE_USER_DEFINED (sd_chain
) == 0)
7272 sd_chain
= pa_parse_space_stmt (GDB_DEBUG_SPACE_NAME
, 0);
7274 current_space
= sd_chain
;
7277 asection
*gdb_section
7278 = bfd_make_section_old_way (stdoutput
, GDB_DEBUG_SPACE_NAME
);
7280 subseg_set (gdb_section
, sd_chain
->sd_last_subseg
);
7282 = pa_subsegment_to_subspace (gdb_section
,
7283 sd_chain
->sd_last_subseg
);
7285 demand_empty_rest_of_line ();
7289 /* It could be a space specified by number. */
7291 save_s
= input_line_pointer
;
7293 pa_parse_number (&input_line_pointer
, 0);
7296 if ((sd_chain
= pa_find_space_by_number (pa_number
)))
7298 current_space
= sd_chain
;
7300 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
7302 = pa_subsegment_to_subspace (sd_chain
->sd_seg
,
7303 sd_chain
->sd_last_subseg
);
7304 demand_empty_rest_of_line ();
7309 /* Not a number, attempt to create a new space. */
7311 input_line_pointer
= save_s
;
7312 name
= input_line_pointer
;
7313 c
= get_symbol_end ();
7314 space_name
= xmalloc (strlen (name
) + 1);
7315 strcpy (space_name
, name
);
7316 *input_line_pointer
= c
;
7318 sd_chain
= pa_parse_space_stmt (space_name
, 1);
7319 current_space
= sd_chain
;
7321 subseg_set (sd_chain
->sd_seg
, sd_chain
->sd_last_subseg
);
7322 current_subspace
= pa_subsegment_to_subspace (sd_chain
->sd_seg
,
7323 sd_chain
->sd_last_subseg
);
7324 demand_empty_rest_of_line ();
7328 /* Switch to a new space. (I think). FIXME. */
7331 pa_spnum (int unused ATTRIBUTE_UNUSED
)
7336 sd_chain_struct
*space
;
7338 name
= input_line_pointer
;
7339 c
= get_symbol_end ();
7340 space
= is_defined_space (name
);
7344 md_number_to_chars (p
, SPACE_SPNUM (space
), 4);
7347 as_warn (_("Undefined space: '%s' Assuming space number = 0."), name
);
7349 *input_line_pointer
= c
;
7350 demand_empty_rest_of_line ();
7353 /* Handle a .SUBSPACE pseudo-op; this switches the current subspace to the
7354 given subspace, creating the new subspace if necessary.
7356 FIXME. Should mirror pa_space more closely, in particular how
7357 they're broken up into subroutines. */
7360 pa_subspace (int create_new
)
7362 char *name
, *ss_name
, c
;
7363 char loadable
, code_only
, comdat
, common
, dup_common
, zero
, sort
;
7364 int i
, access
, space_index
, alignment
, quadrant
, applicable
, flags
;
7365 sd_chain_struct
*space
;
7366 ssd_chain_struct
*ssd
;
7369 if (current_space
== NULL
)
7370 as_fatal (_("Must be in a space before changing or declaring subspaces.\n"));
7372 if (within_procedure
)
7374 as_bad (_("Can\'t change subspaces within a procedure definition. Ignored"));
7375 ignore_rest_of_line ();
7379 name
= input_line_pointer
;
7380 c
= get_symbol_end ();
7381 ss_name
= xmalloc (strlen (name
) + 1);
7382 strcpy (ss_name
, name
);
7383 *input_line_pointer
= c
;
7385 /* Load default values. */
7398 space
= current_space
;
7402 ssd
= is_defined_subspace (ss_name
);
7403 /* Allow user to override the builtin attributes of subspaces. But
7404 only allow the attributes to be changed once! */
7405 if (ssd
&& SUBSPACE_DEFINED (ssd
))
7407 subseg_set (ssd
->ssd_seg
, ssd
->ssd_subseg
);
7408 current_subspace
= ssd
;
7409 if (!is_end_of_statement ())
7410 as_warn (_("Parameters of an existing subspace can\'t be modified"));
7411 demand_empty_rest_of_line ();
7416 /* A new subspace. Load default values if it matches one of
7417 the builtin subspaces. */
7419 while (pa_def_subspaces
[i
].name
)
7421 if (strcasecmp (pa_def_subspaces
[i
].name
, ss_name
) == 0)
7423 loadable
= pa_def_subspaces
[i
].loadable
;
7424 comdat
= pa_def_subspaces
[i
].comdat
;
7425 common
= pa_def_subspaces
[i
].common
;
7426 dup_common
= pa_def_subspaces
[i
].dup_common
;
7427 code_only
= pa_def_subspaces
[i
].code_only
;
7428 zero
= pa_def_subspaces
[i
].zero
;
7429 space_index
= pa_def_subspaces
[i
].space_index
;
7430 alignment
= pa_def_subspaces
[i
].alignment
;
7431 quadrant
= pa_def_subspaces
[i
].quadrant
;
7432 access
= pa_def_subspaces
[i
].access
;
7433 sort
= pa_def_subspaces
[i
].sort
;
7440 /* We should be working with a new subspace now. Fill in
7441 any information as specified by the user. */
7442 if (!is_end_of_statement ())
7444 input_line_pointer
++;
7445 while (!is_end_of_statement ())
7447 name
= input_line_pointer
;
7448 c
= get_symbol_end ();
7449 if ((strncasecmp (name
, "quad", 4) == 0))
7451 *input_line_pointer
= c
;
7452 input_line_pointer
++;
7453 quadrant
= get_absolute_expression ();
7455 else if ((strncasecmp (name
, "align", 5) == 0))
7457 *input_line_pointer
= c
;
7458 input_line_pointer
++;
7459 alignment
= get_absolute_expression ();
7460 if (exact_log2 (alignment
) == -1)
7462 as_bad (_("Alignment must be a power of 2"));
7466 else if ((strncasecmp (name
, "access", 6) == 0))
7468 *input_line_pointer
= c
;
7469 input_line_pointer
++;
7470 access
= get_absolute_expression ();
7472 else if ((strncasecmp (name
, "sort", 4) == 0))
7474 *input_line_pointer
= c
;
7475 input_line_pointer
++;
7476 sort
= get_absolute_expression ();
7478 else if ((strncasecmp (name
, "code_only", 9) == 0))
7480 *input_line_pointer
= c
;
7483 else if ((strncasecmp (name
, "unloadable", 10) == 0))
7485 *input_line_pointer
= c
;
7488 else if ((strncasecmp (name
, "comdat", 6) == 0))
7490 *input_line_pointer
= c
;
7493 else if ((strncasecmp (name
, "common", 6) == 0))
7495 *input_line_pointer
= c
;
7498 else if ((strncasecmp (name
, "dup_comm", 8) == 0))
7500 *input_line_pointer
= c
;
7503 else if ((strncasecmp (name
, "zero", 4) == 0))
7505 *input_line_pointer
= c
;
7508 else if ((strncasecmp (name
, "first", 5) == 0))
7509 as_bad (_("FIRST not supported as a .SUBSPACE argument"));
7511 as_bad (_("Invalid .SUBSPACE argument"));
7512 if (!is_end_of_statement ())
7513 input_line_pointer
++;
7517 /* Compute a reasonable set of BFD flags based on the information
7518 in the .subspace directive. */
7519 applicable
= bfd_applicable_section_flags (stdoutput
);
7522 flags
|= (SEC_ALLOC
| SEC_LOAD
);
7526 /* These flags are used to implement various flavors of initialized
7527 common. The SOM linker discards duplicate subspaces when they
7528 have the same "key" symbol name. This support is more like
7529 GNU linkonce than BFD common. Further, pc-relative relocations
7530 are converted to section relative relocations in BFD common
7531 sections. This complicates the handling of relocations in
7532 common sections containing text and isn't currently supported
7533 correctly in the SOM BFD backend. */
7534 if (comdat
|| common
|| dup_common
)
7535 flags
|= SEC_LINK_ONCE
;
7537 flags
|= SEC_RELOC
| SEC_HAS_CONTENTS
;
7539 /* This is a zero-filled subspace (eg BSS). */
7541 flags
&= ~(SEC_LOAD
| SEC_HAS_CONTENTS
);
7543 applicable
&= flags
;
7545 /* If this is an existing subspace, then we want to use the
7546 segment already associated with the subspace.
7548 FIXME NOW! ELF BFD doesn't appear to be ready to deal with
7549 lots of sections. It might be a problem in the PA ELF
7550 code, I do not know yet. For now avoid creating anything
7551 but the "standard" sections for ELF. */
7553 section
= subseg_force_new (ss_name
, 0);
7555 section
= ssd
->ssd_seg
;
7557 section
= subseg_new (ss_name
, 0);
7560 seg_info (section
)->bss
= 1;
7562 /* Now set the flags. */
7563 bfd_set_section_flags (stdoutput
, section
, applicable
);
7565 /* Record any alignment request for this section. */
7566 record_alignment (section
, exact_log2 (alignment
));
7568 /* Set the starting offset for this section. */
7569 bfd_set_section_vma (stdoutput
, section
,
7570 pa_subspace_start (space
, quadrant
));
7572 /* Now that all the flags are set, update an existing subspace,
7573 or create a new one. */
7576 current_subspace
= update_subspace (space
, ss_name
, loadable
,
7577 code_only
, comdat
, common
,
7578 dup_common
, sort
, zero
, access
,
7579 space_index
, alignment
, quadrant
,
7582 current_subspace
= create_new_subspace (space
, ss_name
, loadable
,
7583 code_only
, comdat
, common
,
7584 dup_common
, zero
, sort
,
7585 access
, space_index
,
7586 alignment
, quadrant
, section
);
7588 demand_empty_rest_of_line ();
7589 current_subspace
->ssd_seg
= section
;
7590 subseg_set (current_subspace
->ssd_seg
, current_subspace
->ssd_subseg
);
7592 SUBSPACE_DEFINED (current_subspace
) = 1;
7595 /* Create default space and subspace dictionaries. */
7598 pa_spaces_begin (void)
7602 space_dict_root
= NULL
;
7603 space_dict_last
= NULL
;
7606 while (pa_def_spaces
[i
].name
)
7610 /* Pick the right name to use for the new section. */
7611 name
= pa_def_spaces
[i
].name
;
7613 pa_def_spaces
[i
].segment
= subseg_new (name
, 0);
7614 create_new_space (pa_def_spaces
[i
].name
, pa_def_spaces
[i
].spnum
,
7615 pa_def_spaces
[i
].loadable
, pa_def_spaces
[i
].defined
,
7616 pa_def_spaces
[i
].private, pa_def_spaces
[i
].sort
,
7617 pa_def_spaces
[i
].segment
, 0);
7622 while (pa_def_subspaces
[i
].name
)
7625 int applicable
, subsegment
;
7626 asection
*segment
= NULL
;
7627 sd_chain_struct
*space
;
7629 /* Pick the right name for the new section and pick the right
7630 subsegment number. */
7631 name
= pa_def_subspaces
[i
].name
;
7634 /* Create the new section. */
7635 segment
= subseg_new (name
, subsegment
);
7637 /* For SOM we want to replace the standard .text, .data, and .bss
7638 sections with our own. We also want to set BFD flags for
7639 all the built-in subspaces. */
7640 if (!strcmp (pa_def_subspaces
[i
].name
, "$CODE$"))
7642 text_section
= segment
;
7643 applicable
= bfd_applicable_section_flags (stdoutput
);
7644 bfd_set_section_flags (stdoutput
, segment
,
7645 applicable
& (SEC_ALLOC
| SEC_LOAD
7646 | SEC_RELOC
| SEC_CODE
7648 | SEC_HAS_CONTENTS
));
7650 else if (!strcmp (pa_def_subspaces
[i
].name
, "$DATA$"))
7652 data_section
= segment
;
7653 applicable
= bfd_applicable_section_flags (stdoutput
);
7654 bfd_set_section_flags (stdoutput
, segment
,
7655 applicable
& (SEC_ALLOC
| SEC_LOAD
7657 | SEC_HAS_CONTENTS
));
7660 else if (!strcmp (pa_def_subspaces
[i
].name
, "$BSS$"))
7662 bss_section
= segment
;
7663 applicable
= bfd_applicable_section_flags (stdoutput
);
7664 bfd_set_section_flags (stdoutput
, segment
,
7665 applicable
& SEC_ALLOC
);
7667 else if (!strcmp (pa_def_subspaces
[i
].name
, "$LIT$"))
7669 applicable
= bfd_applicable_section_flags (stdoutput
);
7670 bfd_set_section_flags (stdoutput
, segment
,
7671 applicable
& (SEC_ALLOC
| SEC_LOAD
7674 | SEC_HAS_CONTENTS
));
7676 else if (!strcmp (pa_def_subspaces
[i
].name
, "$MILLICODE$"))
7678 applicable
= bfd_applicable_section_flags (stdoutput
);
7679 bfd_set_section_flags (stdoutput
, segment
,
7680 applicable
& (SEC_ALLOC
| SEC_LOAD
7683 | SEC_HAS_CONTENTS
));
7685 else if (!strcmp (pa_def_subspaces
[i
].name
, "$UNWIND$"))
7687 applicable
= bfd_applicable_section_flags (stdoutput
);
7688 bfd_set_section_flags (stdoutput
, segment
,
7689 applicable
& (SEC_ALLOC
| SEC_LOAD
7692 | SEC_HAS_CONTENTS
));
7695 /* Find the space associated with this subspace. */
7696 space
= pa_segment_to_space (pa_def_spaces
[pa_def_subspaces
[i
].
7697 def_space_index
].segment
);
7700 as_fatal (_("Internal error: Unable to find containing space for %s."),
7701 pa_def_subspaces
[i
].name
);
7704 create_new_subspace (space
, name
,
7705 pa_def_subspaces
[i
].loadable
,
7706 pa_def_subspaces
[i
].code_only
,
7707 pa_def_subspaces
[i
].comdat
,
7708 pa_def_subspaces
[i
].common
,
7709 pa_def_subspaces
[i
].dup_common
,
7710 pa_def_subspaces
[i
].zero
,
7711 pa_def_subspaces
[i
].sort
,
7712 pa_def_subspaces
[i
].access
,
7713 pa_def_subspaces
[i
].space_index
,
7714 pa_def_subspaces
[i
].alignment
,
7715 pa_def_subspaces
[i
].quadrant
,
7721 /* Create a new space NAME, with the appropriate flags as defined
7722 by the given parameters. */
7724 static sd_chain_struct
*
7725 create_new_space (char *name
,
7727 int loadable ATTRIBUTE_UNUSED
,
7734 sd_chain_struct
*chain_entry
;
7736 chain_entry
= xmalloc (sizeof (sd_chain_struct
));
7738 as_fatal (_("Out of memory: could not allocate new space chain entry: %s\n"),
7741 SPACE_NAME (chain_entry
) = xmalloc (strlen (name
) + 1);
7742 strcpy (SPACE_NAME (chain_entry
), name
);
7743 SPACE_DEFINED (chain_entry
) = defined
;
7744 SPACE_USER_DEFINED (chain_entry
) = user_defined
;
7745 SPACE_SPNUM (chain_entry
) = spnum
;
7747 chain_entry
->sd_seg
= seg
;
7748 chain_entry
->sd_last_subseg
= -1;
7749 chain_entry
->sd_subspaces
= NULL
;
7750 chain_entry
->sd_next
= NULL
;
7752 /* Find spot for the new space based on its sort key. */
7753 if (!space_dict_last
)
7754 space_dict_last
= chain_entry
;
7756 if (space_dict_root
== NULL
)
7757 space_dict_root
= chain_entry
;
7760 sd_chain_struct
*chain_pointer
;
7761 sd_chain_struct
*prev_chain_pointer
;
7763 chain_pointer
= space_dict_root
;
7764 prev_chain_pointer
= NULL
;
7766 while (chain_pointer
)
7768 prev_chain_pointer
= chain_pointer
;
7769 chain_pointer
= chain_pointer
->sd_next
;
7772 /* At this point we've found the correct place to add the new
7773 entry. So add it and update the linked lists as appropriate. */
7774 if (prev_chain_pointer
)
7776 chain_entry
->sd_next
= chain_pointer
;
7777 prev_chain_pointer
->sd_next
= chain_entry
;
7781 space_dict_root
= chain_entry
;
7782 chain_entry
->sd_next
= chain_pointer
;
7785 if (chain_entry
->sd_next
== NULL
)
7786 space_dict_last
= chain_entry
;
7789 /* This is here to catch predefined spaces which do not get
7790 modified by the user's input. Another call is found at
7791 the bottom of pa_parse_space_stmt to handle cases where
7792 the user modifies a predefined space. */
7793 #ifdef obj_set_section_attributes
7794 obj_set_section_attributes (seg
, defined
, private, sort
, spnum
);
7800 /* Create a new subspace NAME, with the appropriate flags as defined
7801 by the given parameters.
7803 Add the new subspace to the subspace dictionary chain in numerical
7804 order as defined by the SORT entries. */
7806 static ssd_chain_struct
*
7807 create_new_subspace (sd_chain_struct
*space
,
7809 int loadable ATTRIBUTE_UNUSED
,
7810 int code_only ATTRIBUTE_UNUSED
,
7814 int is_zero ATTRIBUTE_UNUSED
,
7817 int space_index ATTRIBUTE_UNUSED
,
7818 int alignment ATTRIBUTE_UNUSED
,
7822 ssd_chain_struct
*chain_entry
;
7824 chain_entry
= xmalloc (sizeof (ssd_chain_struct
));
7826 as_fatal (_("Out of memory: could not allocate new subspace chain entry: %s\n"), name
);
7828 SUBSPACE_NAME (chain_entry
) = xmalloc (strlen (name
) + 1);
7829 strcpy (SUBSPACE_NAME (chain_entry
), name
);
7831 /* Initialize subspace_defined. When we hit a .subspace directive
7832 we'll set it to 1 which "locks-in" the subspace attributes. */
7833 SUBSPACE_DEFINED (chain_entry
) = 0;
7835 chain_entry
->ssd_subseg
= 0;
7836 chain_entry
->ssd_seg
= seg
;
7837 chain_entry
->ssd_next
= NULL
;
7839 /* Find spot for the new subspace based on its sort key. */
7840 if (space
->sd_subspaces
== NULL
)
7841 space
->sd_subspaces
= chain_entry
;
7844 ssd_chain_struct
*chain_pointer
;
7845 ssd_chain_struct
*prev_chain_pointer
;
7847 chain_pointer
= space
->sd_subspaces
;
7848 prev_chain_pointer
= NULL
;
7850 while (chain_pointer
)
7852 prev_chain_pointer
= chain_pointer
;
7853 chain_pointer
= chain_pointer
->ssd_next
;
7856 /* Now we have somewhere to put the new entry. Insert it and update
7858 if (prev_chain_pointer
)
7860 chain_entry
->ssd_next
= chain_pointer
;
7861 prev_chain_pointer
->ssd_next
= chain_entry
;
7865 space
->sd_subspaces
= chain_entry
;
7866 chain_entry
->ssd_next
= chain_pointer
;
7870 #ifdef obj_set_subsection_attributes
7871 obj_set_subsection_attributes (seg
, space
->sd_seg
, access
, sort
,
7872 quadrant
, comdat
, common
, dup_common
);
7878 /* Update the information for the given subspace based upon the
7879 various arguments. Return the modified subspace chain entry. */
7881 static ssd_chain_struct
*
7882 update_subspace (sd_chain_struct
*space
,
7884 int loadable ATTRIBUTE_UNUSED
,
7885 int code_only ATTRIBUTE_UNUSED
,
7890 int zero ATTRIBUTE_UNUSED
,
7892 int space_index ATTRIBUTE_UNUSED
,
7893 int alignment ATTRIBUTE_UNUSED
,
7897 ssd_chain_struct
*chain_entry
;
7899 chain_entry
= is_defined_subspace (name
);
7901 #ifdef obj_set_subsection_attributes
7902 obj_set_subsection_attributes (section
, space
->sd_seg
, access
, sort
,
7903 quadrant
, comdat
, common
, dup_common
);
7909 /* Return the space chain entry for the space with the name NAME or
7910 NULL if no such space exists. */
7912 static sd_chain_struct
*
7913 is_defined_space (char *name
)
7915 sd_chain_struct
*chain_pointer
;
7917 for (chain_pointer
= space_dict_root
;
7919 chain_pointer
= chain_pointer
->sd_next
)
7920 if (strcmp (SPACE_NAME (chain_pointer
), name
) == 0)
7921 return chain_pointer
;
7923 /* No mapping from segment to space was found. Return NULL. */
7927 /* Find and return the space associated with the given seg. If no mapping
7928 from the given seg to a space is found, then return NULL.
7930 Unlike subspaces, the number of spaces is not expected to grow much,
7931 so a linear exhaustive search is OK here. */
7933 static sd_chain_struct
*
7934 pa_segment_to_space (asection
*seg
)
7936 sd_chain_struct
*space_chain
;
7938 /* Walk through each space looking for the correct mapping. */
7939 for (space_chain
= space_dict_root
;
7941 space_chain
= space_chain
->sd_next
)
7942 if (space_chain
->sd_seg
== seg
)
7945 /* Mapping was not found. Return NULL. */
7949 /* Return the first space chain entry for the subspace with the name
7950 NAME or NULL if no such subspace exists.
7952 When there are multiple subspaces with the same name, switching to
7953 the first (i.e., default) subspace is preferable in most situations.
7954 For example, it wouldn't be desirable to merge COMDAT data with non
7957 Uses a linear search through all the spaces and subspaces, this may
7958 not be appropriate if we ever being placing each function in its
7961 static ssd_chain_struct
*
7962 is_defined_subspace (char *name
)
7964 sd_chain_struct
*space_chain
;
7965 ssd_chain_struct
*subspace_chain
;
7967 /* Walk through each space. */
7968 for (space_chain
= space_dict_root
;
7970 space_chain
= space_chain
->sd_next
)
7972 /* Walk through each subspace looking for a name which matches. */
7973 for (subspace_chain
= space_chain
->sd_subspaces
;
7975 subspace_chain
= subspace_chain
->ssd_next
)
7976 if (strcmp (SUBSPACE_NAME (subspace_chain
), name
) == 0)
7977 return subspace_chain
;
7980 /* Subspace wasn't found. Return NULL. */
7984 /* Find and return the subspace associated with the given seg. If no
7985 mapping from the given seg to a subspace is found, then return NULL.
7987 If we ever put each procedure/function within its own subspace
7988 (to make life easier on the compiler and linker), then this will have
7989 to become more efficient. */
7991 static ssd_chain_struct
*
7992 pa_subsegment_to_subspace (asection
*seg
, subsegT subseg
)
7994 sd_chain_struct
*space_chain
;
7995 ssd_chain_struct
*subspace_chain
;
7997 /* Walk through each space. */
7998 for (space_chain
= space_dict_root
;
8000 space_chain
= space_chain
->sd_next
)
8002 if (space_chain
->sd_seg
== seg
)
8004 /* Walk through each subspace within each space looking for
8005 the correct mapping. */
8006 for (subspace_chain
= space_chain
->sd_subspaces
;
8008 subspace_chain
= subspace_chain
->ssd_next
)
8009 if (subspace_chain
->ssd_subseg
== (int) subseg
)
8010 return subspace_chain
;
8014 /* No mapping from subsegment to subspace found. Return NULL. */
8018 /* Given a number, try and find a space with the name number.
8020 Return a pointer to a space dictionary chain entry for the space
8021 that was found or NULL on failure. */
8023 static sd_chain_struct
*
8024 pa_find_space_by_number (int number
)
8026 sd_chain_struct
*space_chain
;
8028 for (space_chain
= space_dict_root
;
8030 space_chain
= space_chain
->sd_next
)
8032 if (SPACE_SPNUM (space_chain
) == (unsigned int) number
)
8036 /* No appropriate space found. Return NULL. */
8040 /* Return the starting address for the given subspace. If the starting
8041 address is unknown then return zero. */
8044 pa_subspace_start (sd_chain_struct
*space
, int quadrant
)
8046 /* FIXME. Assumes everyone puts read/write data at 0x4000000, this
8047 is not correct for the PA OSF1 port. */
8048 if ((strcmp (SPACE_NAME (space
), "$PRIVATE$") == 0) && quadrant
== 1)
8050 else if (space
->sd_seg
== data_section
&& quadrant
== 1)
8058 /* Helper function for pa_stringer. Used to find the end of
8062 pa_stringer_aux (char *s
)
8064 unsigned int c
= *s
& CHAR_MASK
;
8077 /* Handle a .STRING type pseudo-op. */
8080 pa_stringer (int append_zero
)
8082 char *s
, num_buf
[4];
8086 /* Preprocess the string to handle PA-specific escape sequences.
8087 For example, \xDD where DD is a hexadecimal number should be
8088 changed to \OOO where OOO is an octal number. */
8091 /* We must have a valid space and subspace. */
8092 pa_check_current_space_and_subspace ();
8095 /* Skip the opening quote. */
8096 s
= input_line_pointer
+ 1;
8098 while (is_a_char (c
= pa_stringer_aux (s
++)))
8105 /* Handle \x<num>. */
8108 unsigned int number
;
8113 /* Get past the 'x'. */
8115 for (num_digit
= 0, number
= 0, dg
= *s
;
8117 && (ISDIGIT (dg
) || (dg
>= 'a' && dg
<= 'f')
8118 || (dg
>= 'A' && dg
<= 'F'));
8122 number
= number
* 16 + dg
- '0';
8123 else if (dg
>= 'a' && dg
<= 'f')
8124 number
= number
* 16 + dg
- 'a' + 10;
8126 number
= number
* 16 + dg
- 'A' + 10;
8136 sprintf (num_buf
, "%02o", number
);
8139 sprintf (num_buf
, "%03o", number
);
8142 for (i
= 0; i
<= num_digit
; i
++)
8143 s_start
[i
] = num_buf
[i
];
8147 /* This might be a "\"", skip over the escaped char. */
8154 stringer (append_zero
);
8155 pa_undefine_label ();
8158 /* Handle a .VERSION pseudo-op. */
8161 pa_version (int unused ATTRIBUTE_UNUSED
)
8164 pa_undefine_label ();
8169 /* Handle a .COMPILER pseudo-op. */
8172 pa_compiler (int unused ATTRIBUTE_UNUSED
)
8174 obj_som_compiler (0);
8175 pa_undefine_label ();
8180 /* Handle a .COPYRIGHT pseudo-op. */
8183 pa_copyright (int unused ATTRIBUTE_UNUSED
)
8186 pa_undefine_label ();
8189 /* Just like a normal cons, but when finished we have to undefine
8190 the latest space label. */
8193 pa_cons (int nbytes
)
8196 pa_undefine_label ();
8199 /* Like float_cons, but we need to undefine our label. */
8202 pa_float_cons (int float_type
)
8204 float_cons (float_type
);
8205 pa_undefine_label ();
8208 /* Like s_fill, but delete our label when finished. */
8211 pa_fill (int unused ATTRIBUTE_UNUSED
)
8214 /* We must have a valid space and subspace. */
8215 pa_check_current_space_and_subspace ();
8219 pa_undefine_label ();
8222 /* Like lcomm, but delete our label when finished. */
8225 pa_lcomm (int needs_align
)
8228 /* We must have a valid space and subspace. */
8229 pa_check_current_space_and_subspace ();
8232 s_lcomm (needs_align
);
8233 pa_undefine_label ();
8236 /* Like lsym, but delete our label when finished. */
8239 pa_lsym (int unused ATTRIBUTE_UNUSED
)
8242 /* We must have a valid space and subspace. */
8243 pa_check_current_space_and_subspace ();
8247 pa_undefine_label ();
8250 /* This function is called once, at assembler startup time. It should
8251 set up all the tables, etc. that the MD part of the assembler will need. */
8256 const char *retval
= NULL
;
8260 last_call_info
= NULL
;
8261 call_info_root
= NULL
;
8263 /* Set the default machine type. */
8264 if (!bfd_set_arch_mach (stdoutput
, bfd_arch_hppa
, DEFAULT_LEVEL
))
8265 as_warn (_("could not set architecture and machine"));
8267 /* Folding of text and data segments fails miserably on the PA.
8268 Warn user and disable "-R" option. */
8269 if (flag_readonly_data_in_text
)
8271 as_warn (_("-R option not supported on this target."));
8272 flag_readonly_data_in_text
= 0;
8279 op_hash
= hash_new ();
8281 while (i
< NUMOPCODES
)
8283 const char *name
= pa_opcodes
[i
].name
;
8285 retval
= hash_insert (op_hash
, name
, (struct pa_opcode
*) &pa_opcodes
[i
]);
8286 if (retval
!= NULL
&& *retval
!= '\0')
8288 as_fatal (_("Internal error: can't hash `%s': %s\n"), name
, retval
);
8294 if ((pa_opcodes
[i
].match
& pa_opcodes
[i
].mask
)
8295 != pa_opcodes
[i
].match
)
8297 fprintf (stderr
, _("internal error: losing opcode: `%s' \"%s\"\n"),
8298 pa_opcodes
[i
].name
, pa_opcodes
[i
].args
);
8303 while (i
< NUMOPCODES
&& !strcmp (pa_opcodes
[i
].name
, name
));
8307 as_fatal (_("Broken assembler. No assembly attempted."));
8310 /* SOM will change text_section. To make sure we never put
8311 anything into the old one switch to the new one now. */
8312 subseg_set (text_section
, 0);
8316 dummy_symbol
= symbol_find_or_make ("L$dummy");
8317 S_SET_SEGMENT (dummy_symbol
, text_section
);
8318 /* Force the symbol to be converted to a real symbol. */
8319 (void) symbol_get_bfdsym (dummy_symbol
);
8323 /* On the PA relocations which involve function symbols must not be
8324 adjusted. This so that the linker can know when/how to create argument
8325 relocation stubs for indirect calls and calls to static functions.
8327 "T" field selectors create DLT relative fixups for accessing
8328 globals and statics in PIC code; each DLT relative fixup creates
8329 an entry in the DLT table. The entries contain the address of
8330 the final target (eg accessing "foo" would create a DLT entry
8331 with the address of "foo").
8333 Unfortunately, the HP linker doesn't take into account any addend
8334 when generating the DLT; so accessing $LIT$+8 puts the address of
8335 $LIT$ into the DLT rather than the address of $LIT$+8.
8337 The end result is we can't perform relocation symbol reductions for
8338 any fixup which creates entries in the DLT (eg they use "T" field
8341 ??? Reject reductions involving symbols with external scope; such
8342 reductions make life a living hell for object file editors. */
8345 hppa_fix_adjustable (fixS
*fixp
)
8350 struct hppa_fix_struct
*hppa_fix
;
8352 hppa_fix
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
8355 /* LR/RR selectors are implicitly used for a number of different relocation
8356 types. We must ensure that none of these types are adjusted (see below)
8357 even if they occur with a different selector. */
8358 code
= elf_hppa_reloc_final_type (stdoutput
, fixp
->fx_r_type
,
8359 hppa_fix
->fx_r_format
,
8360 hppa_fix
->fx_r_field
);
8364 /* Relocation types which use e_lrsel. */
8365 case R_PARISC_DIR21L
:
8366 case R_PARISC_DLTREL21L
:
8367 case R_PARISC_DPREL21L
:
8368 case R_PARISC_PLTOFF21L
:
8370 /* Relocation types which use e_rrsel. */
8371 case R_PARISC_DIR14R
:
8372 case R_PARISC_DIR14DR
:
8373 case R_PARISC_DIR14WR
:
8374 case R_PARISC_DIR17R
:
8375 case R_PARISC_DLTREL14R
:
8376 case R_PARISC_DLTREL14DR
:
8377 case R_PARISC_DLTREL14WR
:
8378 case R_PARISC_DPREL14R
:
8379 case R_PARISC_DPREL14DR
:
8380 case R_PARISC_DPREL14WR
:
8381 case R_PARISC_PLTOFF14R
:
8382 case R_PARISC_PLTOFF14DR
:
8383 case R_PARISC_PLTOFF14WR
:
8385 /* Other types that we reject for reduction. */
8386 case R_PARISC_GNU_VTENTRY
:
8387 case R_PARISC_GNU_VTINHERIT
:
8394 /* Reject reductions of symbols in sym1-sym2 expressions when
8395 the fixup will occur in a CODE subspace.
8397 XXX FIXME: Long term we probably want to reject all of these;
8398 for example reducing in the debug section would lose if we ever
8399 supported using the optimizing hp linker. */
8402 && (hppa_fix
->segment
->flags
& SEC_CODE
))
8405 /* We can't adjust any relocs that use LR% and RR% field selectors.
8407 If a symbol is reduced to a section symbol, the assembler will
8408 adjust the addend unless the symbol happens to reside right at
8409 the start of the section. Additionally, the linker has no choice
8410 but to manipulate the addends when coalescing input sections for
8411 "ld -r". Since an LR% field selector is defined to round the
8412 addend, we can't change the addend without risking that a LR% and
8413 it's corresponding (possible multiple) RR% field will no longer
8414 sum to the right value.
8417 . ldil LR%foo+0,%r21
8418 . ldw RR%foo+0(%r21),%r26
8419 . ldw RR%foo+4(%r21),%r25
8421 If foo is at address 4092 (decimal) in section `sect', then after
8422 reducing to the section symbol we get
8423 . LR%sect+4092 == (L%sect)+0
8424 . RR%sect+4092 == (R%sect)+4092
8425 . RR%sect+4096 == (R%sect)-4096
8426 and the last address loses because rounding the addend to 8k
8427 multiples takes us up to 8192 with an offset of -4096.
8429 In cases where the LR% expression is identical to the RR% one we
8430 will never have a problem, but is so happens that gcc rounds
8431 addends involved in LR% field selectors to work around a HP
8432 linker bug. ie. We often have addresses like the last case
8433 above where the LR% expression is offset from the RR% one. */
8435 if (hppa_fix
->fx_r_field
== e_lrsel
8436 || hppa_fix
->fx_r_field
== e_rrsel
8437 || hppa_fix
->fx_r_field
== e_nlrsel
)
8440 /* Reject reductions of symbols in DLT relative relocs,
8441 relocations with plabels. */
8442 if (hppa_fix
->fx_r_field
== e_tsel
8443 || hppa_fix
->fx_r_field
== e_ltsel
8444 || hppa_fix
->fx_r_field
== e_rtsel
8445 || hppa_fix
->fx_r_field
== e_psel
8446 || hppa_fix
->fx_r_field
== e_rpsel
8447 || hppa_fix
->fx_r_field
== e_lpsel
)
8450 /* Reject absolute calls (jumps). */
8451 if (hppa_fix
->fx_r_type
== R_HPPA_ABS_CALL
)
8454 /* Reject reductions of function symbols. */
8455 if (fixp
->fx_addsy
!= 0 && S_IS_FUNCTION (fixp
->fx_addsy
))
8461 /* Return nonzero if the fixup in FIXP will require a relocation,
8462 even it if appears that the fixup could be completely handled
8466 hppa_force_relocation (struct fix
*fixp
)
8468 struct hppa_fix_struct
*hppa_fixp
;
8470 hppa_fixp
= (struct hppa_fix_struct
*) fixp
->tc_fix_data
;
8472 if (fixp
->fx_r_type
== (int) R_HPPA_ENTRY
8473 || fixp
->fx_r_type
== (int) R_HPPA_EXIT
8474 || fixp
->fx_r_type
== (int) R_HPPA_BEGIN_BRTAB
8475 || fixp
->fx_r_type
== (int) R_HPPA_END_BRTAB
8476 || fixp
->fx_r_type
== (int) R_HPPA_BEGIN_TRY
8477 || fixp
->fx_r_type
== (int) R_HPPA_END_TRY
8478 || (fixp
->fx_addsy
!= NULL
&& fixp
->fx_subsy
!= NULL
8479 && (hppa_fixp
->segment
->flags
& SEC_CODE
) != 0))
8483 if (fixp
->fx_r_type
== (int) R_PARISC_GNU_VTINHERIT
8484 || fixp
->fx_r_type
== (int) R_PARISC_GNU_VTENTRY
)
8488 assert (fixp
->fx_addsy
!= NULL
);
8490 /* Ensure we emit a relocation for global symbols so that dynamic
8492 if (S_FORCE_RELOC (fixp
->fx_addsy
, 1))
8495 /* It is necessary to force PC-relative calls/jumps to have a relocation
8496 entry if they're going to need either an argument relocation or long
8499 && arg_reloc_stub_needed (symbol_arg_reloc_info (fixp
->fx_addsy
),
8500 hppa_fixp
->fx_arg_reloc
))
8503 /* Now check to see if we're going to need a long-branch stub. */
8504 if (fixp
->fx_r_type
== (int) R_HPPA_PCREL_CALL
)
8506 long pc
= md_pcrel_from (fixp
);
8507 valueT distance
, min_stub_distance
;
8509 distance
= fixp
->fx_offset
+ S_GET_VALUE (fixp
->fx_addsy
) - pc
- 8;
8511 /* Distance to the closest possible stub. This will detect most
8512 but not all circumstances where a stub will not work. */
8513 min_stub_distance
= pc
+ 16;
8515 if (last_call_info
!= NULL
)
8516 min_stub_distance
-= S_GET_VALUE (last_call_info
->start_symbol
);
8519 if ((distance
+ 8388608 >= 16777216
8520 && min_stub_distance
<= 8388608)
8521 || (hppa_fixp
->fx_r_format
== 17
8522 && distance
+ 262144 >= 524288
8523 && min_stub_distance
<= 262144)
8524 || (hppa_fixp
->fx_r_format
== 12
8525 && distance
+ 8192 >= 16384
8526 && min_stub_distance
<= 8192)
8531 if (fixp
->fx_r_type
== (int) R_HPPA_ABS_CALL
)
8534 /* No need (yet) to force another relocations to be emitted. */
8538 /* Now for some ELF specific code. FIXME. */
8540 /* For ELF, this function serves one purpose: to setup the st_size
8541 field of STT_FUNC symbols. To do this, we need to scan the
8542 call_info structure list, determining st_size in by taking the
8543 difference in the address of the beginning/end marker symbols. */
8546 elf_hppa_final_processing (void)
8548 struct call_info
*call_info_pointer
;
8550 for (call_info_pointer
= call_info_root
;
8552 call_info_pointer
= call_info_pointer
->ci_next
)
8554 elf_symbol_type
*esym
8555 = ((elf_symbol_type
*)
8556 symbol_get_bfdsym (call_info_pointer
->start_symbol
));
8557 esym
->internal_elf_sym
.st_size
=
8558 S_GET_VALUE (call_info_pointer
->end_symbol
)
8559 - S_GET_VALUE (call_info_pointer
->start_symbol
) + 4;
8564 pa_vtable_entry (int ignore ATTRIBUTE_UNUSED
)
8566 struct fix
*new_fix
;
8568 new_fix
= obj_elf_vtable_entry (0);
8572 struct hppa_fix_struct
* hppa_fix
= obstack_alloc (¬es
, sizeof (struct hppa_fix_struct
));
8574 hppa_fix
->fx_r_type
= R_HPPA
;
8575 hppa_fix
->fx_r_field
= e_fsel
;
8576 hppa_fix
->fx_r_format
= 32;
8577 hppa_fix
->fx_arg_reloc
= 0;
8578 hppa_fix
->segment
= now_seg
;
8579 new_fix
->tc_fix_data
= (void *) hppa_fix
;
8580 new_fix
->fx_r_type
= (int) R_PARISC_GNU_VTENTRY
;
8585 pa_vtable_inherit (int ignore ATTRIBUTE_UNUSED
)
8587 struct fix
*new_fix
;
8589 new_fix
= obj_elf_vtable_inherit (0);
8593 struct hppa_fix_struct
* hppa_fix
= obstack_alloc (¬es
, sizeof (struct hppa_fix_struct
));
8595 hppa_fix
->fx_r_type
= R_HPPA
;
8596 hppa_fix
->fx_r_field
= e_fsel
;
8597 hppa_fix
->fx_r_format
= 32;
8598 hppa_fix
->fx_arg_reloc
= 0;
8599 hppa_fix
->segment
= now_seg
;
8600 new_fix
->tc_fix_data
= (void *) hppa_fix
;
8601 new_fix
->fx_r_type
= (int) R_PARISC_GNU_VTINHERIT
;
8606 /* Table of pseudo ops for the PA. FIXME -- how many of these
8607 are now redundant with the overall GAS and the object file
8608 dependent tables? */
8609 const pseudo_typeS md_pseudo_table
[] =
8611 /* align pseudo-ops on the PA specify the actual alignment requested,
8612 not the log2 of the requested alignment. */
8614 {"align", pa_align
, 8},
8617 {"align", s_align_bytes
, 8},
8619 {"begin_brtab", pa_brtab
, 1},
8620 {"begin_try", pa_try
, 1},
8621 {"block", pa_block
, 1},
8622 {"blockz", pa_block
, 0},
8623 {"byte", pa_cons
, 1},
8624 {"call", pa_call
, 0},
8625 {"callinfo", pa_callinfo
, 0},
8626 #if defined (OBJ_ELF) && (defined (TE_LINUX) || defined (TE_NetBSD))
8627 {"code", obj_elf_text
, 0},
8629 {"code", pa_text
, 0},
8630 {"comm", pa_comm
, 0},
8633 {"compiler", pa_compiler
, 0},
8635 {"copyright", pa_copyright
, 0},
8636 #if !(defined (OBJ_ELF) && (defined (TE_LINUX) || defined (TE_NetBSD)))
8637 {"data", pa_data
, 0},
8639 {"double", pa_float_cons
, 'd'},
8640 {"dword", pa_cons
, 8},
8642 {"end_brtab", pa_brtab
, 0},
8643 #if !(defined (OBJ_ELF) && (defined (TE_LINUX) || defined (TE_NetBSD)))
8644 {"end_try", pa_try
, 0},
8646 {"enter", pa_enter
, 0},
8647 {"entry", pa_entry
, 0},
8649 {"exit", pa_exit
, 0},
8650 {"export", pa_export
, 0},
8651 {"fill", pa_fill
, 0},
8652 {"float", pa_float_cons
, 'f'},
8653 {"half", pa_cons
, 2},
8654 {"import", pa_import
, 0},
8655 {"int", pa_cons
, 4},
8656 {"label", pa_label
, 0},
8657 {"lcomm", pa_lcomm
, 0},
8658 {"leave", pa_leave
, 0},
8659 {"level", pa_level
, 0},
8660 {"long", pa_cons
, 4},
8661 {"lsym", pa_lsym
, 0},
8663 {"nsubspa", pa_subspace
, 1},
8665 {"octa", pa_cons
, 16},
8666 {"org", pa_origin
, 0},
8667 {"origin", pa_origin
, 0},
8668 {"param", pa_param
, 0},
8669 {"proc", pa_proc
, 0},
8670 {"procend", pa_procend
, 0},
8671 {"quad", pa_cons
, 8},
8673 {"short", pa_cons
, 2},
8674 {"single", pa_float_cons
, 'f'},
8676 {"space", pa_space
, 0},
8677 {"spnum", pa_spnum
, 0},
8679 {"string", pa_stringer
, 0},
8680 {"stringz", pa_stringer
, 1},
8682 {"subspa", pa_subspace
, 0},
8684 #if !(defined (OBJ_ELF) && (defined (TE_LINUX) || defined (TE_NetBSD)))
8685 {"text", pa_text
, 0},
8687 {"version", pa_version
, 0},
8689 {"vtable_entry", pa_vtable_entry
, 0},
8690 {"vtable_inherit", pa_vtable_inherit
, 0},
8692 {"word", pa_cons
, 4},