1 /* Definitions of target machine for GNU compiler,
2 for 64 bit PowerPC linux.
3 Copyright (C) 2000, 2001, 2002, 2003, 2004
4 Free Software Foundation, Inc.
6 This file is part of GCC.
8 GCC is free software; you can redistribute it and/or modify it
9 under the terms of the GNU General Public License as published
10 by the Free Software Foundation; either version 2, or (at your
11 option) any later version.
13 GCC is distributed in the hope that it will be useful, but WITHOUT
14 ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
15 or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public
16 License for more details.
18 You should have received a copy of the GNU General Public License
19 along with GCC; see the file COPYING. If not, write to the
20 Free Software Foundation, 59 Temple Place - Suite 330, Boston,
21 MA 02111-1307, USA. */
23 #ifndef RS6000_BI_ARCH
26 #define DEFAULT_ABI ABI_AIX
29 #define TARGET_64BIT 1
31 #define DEFAULT_ARCH64_P 1
32 #define RS6000_BI_ARCH_P 0
36 #define DEFAULT_ARCH64_P (TARGET_DEFAULT & MASK_64BIT)
37 #define RS6000_BI_ARCH_P 1
44 #define TARGET_64BIT 1
46 #define TARGET_64BIT 0
51 #define TARGET_AIX TARGET_64BIT
53 #undef PROCESSOR_DEFAULT64
54 #define PROCESSOR_DEFAULT64 PROCESSOR_PPC630
56 #undef TARGET_RELOCATABLE
57 #define TARGET_RELOCATABLE (!TARGET_64BIT && (target_flags & MASK_RELOCATABLE))
59 #undef RS6000_ABI_NAME
60 #define RS6000_ABI_NAME (TARGET_64BIT ? "aixdesc" : "sysv")
62 #define INVALID_64BIT "-m%s not supported in this configuration"
63 #define INVALID_32BIT INVALID_64BIT
65 #undef SUBSUBTARGET_OVERRIDE_OPTIONS
66 #define SUBSUBTARGET_OVERRIDE_OPTIONS \
69 if (rs6000_alignment_string == 0) \
70 rs6000_alignment_flags = MASK_ALIGN_NATURAL; \
73 if (DEFAULT_ABI != ABI_AIX) \
75 rs6000_current_abi = ABI_AIX; \
76 error (INVALID_64BIT, "call"); \
78 if (target_flags & MASK_RELOCATABLE) \
80 target_flags &= ~MASK_RELOCATABLE; \
81 error (INVALID_64BIT, "relocatable"); \
83 if (target_flags & MASK_EABI) \
85 target_flags &= ~MASK_EABI; \
86 error (INVALID_64BIT, "eabi"); \
88 if (target_flags & MASK_PROTOTYPE) \
90 target_flags &= ~MASK_PROTOTYPE; \
91 error (INVALID_64BIT, "prototype"); \
93 if ((target_flags & MASK_POWERPC64) == 0) \
95 target_flags |= MASK_POWERPC64; \
96 error ("-m64 requires a PowerPC64 cpu"); \
101 if (!RS6000_BI_ARCH_P) \
102 error (INVALID_32BIT, "32"); \
103 if (TARGET_PROFILE_KERNEL) \
105 target_flags &= ~MASK_PROFILE_KERNEL; \
106 error (INVALID_32BIT, "profile-kernel"); \
112 #ifdef RS6000_BI_ARCH
114 #undef OVERRIDE_OPTIONS
115 #define OVERRIDE_OPTIONS \
116 rs6000_override_options (((TARGET_DEFAULT ^ target_flags) & MASK_64BIT) \
117 ? (char *) 0 : TARGET_CPU_DEFAULT)
121 #undef ASM_DEFAULT_SPEC
123 #undef LINK_OS_LINUX_SPEC
125 #ifndef RS6000_BI_ARCH
126 #define ASM_DEFAULT_SPEC "-mppc64"
127 #define ASM_SPEC "%(asm_spec64) %(asm_spec_common)"
128 #define LINK_OS_LINUX_SPEC "%(link_os_linux_spec64)"
131 #define ASM_DEFAULT_SPEC "-mppc%{!m32:64}"
132 #define ASM_SPEC "%{m32:%(asm_spec32)}%{!m32:%(asm_spec64)} %(asm_spec_common)"
133 #define LINK_OS_LINUX_SPEC "%{m32:%(link_os_linux_spec32)}%{!m32:%(link_os_linux_spec64)}"
135 #define ASM_DEFAULT_SPEC "-mppc%{m64:64}"
136 #define ASM_SPEC "%{!m64:%(asm_spec32)}%{m64:%(asm_spec64)} %(asm_spec_common)"
137 #define LINK_OS_LINUX_SPEC "%{!m64:%(link_os_linux_spec32)}%{m64:%(link_os_linux_spec64)}"
141 #define ASM_SPEC32 "-a32 %{n} %{T} %{Ym,*} %{Yd,*} \
142 %{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \
143 %{memb} %{!memb: %{msdata: -memb} %{msdata=eabi: -memb}} \
144 %{!mlittle: %{!mlittle-endian: %{!mbig: %{!mbig-endian: \
145 %{mcall-freebsd: -mbig} \
146 %{mcall-i960-old: -mlittle} \
147 %{mcall-linux: -mbig} \
148 %{mcall-gnu: -mbig} \
149 %{mcall-netbsd: -mbig} \
152 #define ASM_SPEC64 "-a64"
154 #define ASM_SPEC_COMMON "%(asm_cpu) \
155 %{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
156 %{v:-V} %{Qy:} %{!Qn:-Qy} %{Wa,*:%*} \
157 %{mlittle} %{mlittle-endian} %{mbig} %{mbig-endian}"
159 #undef SUBSUBTARGET_EXTRA_SPECS
160 #define SUBSUBTARGET_EXTRA_SPECS \
161 { "asm_spec_common", ASM_SPEC_COMMON }, \
162 { "asm_spec32", ASM_SPEC32 }, \
163 { "asm_spec64", ASM_SPEC64 }, \
164 { "link_os_linux_spec32", LINK_OS_LINUX_SPEC32 }, \
165 { "link_os_linux_spec64", LINK_OS_LINUX_SPEC64 },
167 #undef MULTILIB_DEFAULTS
169 #define MULTILIB_DEFAULTS { "m64" }
171 #define MULTILIB_DEFAULTS { "m32" }
174 #ifndef RS6000_BI_ARCH
176 /* 64-bit PowerPC Linux is always big-endian. */
177 #undef TARGET_LITTLE_ENDIAN
178 #define TARGET_LITTLE_ENDIAN 0
180 /* 64-bit PowerPC Linux always has a TOC. */
184 /* Some things from sysv4.h we don't do when 64 bit. */
185 #undef TARGET_RELOCATABLE
186 #define TARGET_RELOCATABLE 0
188 #define TARGET_EABI 0
189 #undef TARGET_PROTOTYPE
190 #define TARGET_PROTOTYPE 0
194 #define MASK_PROFILE_KERNEL 0x00100000
196 /* Non-standard profiling for kernels, which just saves LR then calls
197 _mcount without worrying about arg saves. The idea is to change
198 the function prologue as little as possible as it isn't easy to
199 account for arg save/restore code added just for _mcount. */
200 #define TARGET_PROFILE_KERNEL (target_flags & MASK_PROFILE_KERNEL)
202 /* Override sysv4.h. */
203 #undef EXTRA_SUBTARGET_SWITCHES
204 #define EXTRA_SUBTARGET_SWITCHES \
205 {"profile-kernel", MASK_PROFILE_KERNEL, \
206 N_("Call mcount for profiling before a function prologue") }, \
207 {"no-profile-kernel", -MASK_PROFILE_KERNEL, \
208 N_("Call mcount for profiling after a function prologue") },
210 /* We use glibc _mcount for profiling. */
211 #define NO_PROFILE_COUNTERS TARGET_64BIT
212 #define PROFILE_HOOK(LABEL) \
213 do { if (TARGET_64BIT) output_profile_hook (LABEL); } while (0)
215 /* We don't need to generate entries in .fixup. */
216 #undef RELOCATABLE_NEEDS_FIXUP
218 /* PowerPC64 Linux word-aligns FP doubles when -malign-power is given. */
219 #undef ADJUST_FIELD_ALIGN
220 #define ADJUST_FIELD_ALIGN(FIELD, COMPUTED) \
221 ((TARGET_ALTIVEC && TREE_CODE (TREE_TYPE (FIELD)) == VECTOR_TYPE) \
224 && TARGET_ALIGN_NATURAL == 0 \
225 && TYPE_MODE (TREE_CODE (TREE_TYPE (FIELD)) == ARRAY_TYPE \
226 ? get_inner_array_type (FIELD) \
227 : TREE_TYPE (FIELD)) == DFmode) \
228 ? MIN ((COMPUTED), 32) \
231 /* PowerPC64 Linux increases natural record alignment to doubleword if
232 the first field is an FP double, only if in power alignment mode. */
233 #undef ROUND_TYPE_ALIGN
234 #define ROUND_TYPE_ALIGN(STRUCT, COMPUTED, SPECIFIED) \
235 ((TARGET_ALTIVEC && TREE_CODE (STRUCT) == VECTOR_TYPE) \
236 ? MAX (MAX ((COMPUTED), (SPECIFIED)), 128) \
238 && (TREE_CODE (STRUCT) == RECORD_TYPE \
239 || TREE_CODE (STRUCT) == UNION_TYPE \
240 || TREE_CODE (STRUCT) == QUAL_UNION_TYPE) \
241 && TARGET_ALIGN_NATURAL == 0) \
242 ? rs6000_special_round_type_align (STRUCT, COMPUTED, SPECIFIED) \
243 : MAX ((COMPUTED), (SPECIFIED)))
245 /* Indicate that jump tables go in the text section. */
246 #undef JUMP_TABLES_IN_TEXT_SECTION
247 #define JUMP_TABLES_IN_TEXT_SECTION TARGET_64BIT
249 /* The linux ppc64 ABI isn't explicit on whether aggregates smaller
250 than a doubleword should be padded upward or downward. You could
251 reasonably assume that they follow the normal rules for structure
252 layout treating the parameter area as any other block of memory,
253 then map the reg param area to registers. ie. pad updard.
254 Setting both of the following defines results in this behavior.
255 Setting just the first one will result in aggregates that fit in a
256 doubleword being padded downward, and others being padded upward.
257 Not a bad idea as this results in struct { int x; } being passed
258 the same way as an int. */
259 #define AGGREGATE_PADDING_FIXED TARGET_64BIT
260 #define AGGREGATES_PAD_UPWARD_ALWAYS 0
262 /* We don't want anything in the reg parm area being passed on the
264 #define MUST_PASS_IN_STACK(MODE, TYPE) \
267 && (TREE_CODE (TYPE_SIZE (TYPE)) != INTEGER_CST \
268 || TREE_ADDRESSABLE (TYPE))) \
270 && default_must_pass_in_stack ((MODE), (TYPE))))
272 /* Specify padding for the last element of a block move between
273 registers and memory. FIRST is nonzero if this is the only
275 #define BLOCK_REG_PADDING(MODE, TYPE, FIRST) \
276 (!(FIRST) ? upward : FUNCTION_ARG_PADDING (MODE, TYPE))
278 /* __throw will restore its own return address to be the same as the
279 return address of the function that the throw is being made to.
280 This is unfortunate, because we want to check the original
281 return address to see if we need to restore the TOC.
282 So we have to squirrel it away with this. */
283 #define SETUP_FRAME_ADDRESSES() \
284 do { if (TARGET_64BIT) rs6000_aix_emit_builtin_unwind_init (); } while (0)
286 /* Override svr4.h */
287 #undef MD_EXEC_PREFIX
288 #undef MD_STARTFILE_PREFIX
290 #undef TARGET_OS_CPP_BUILTINS
291 #define TARGET_OS_CPP_BUILTINS() \
296 builtin_define ("__PPC__"); \
297 builtin_define ("__PPC64__"); \
298 builtin_define ("__powerpc__"); \
299 builtin_define ("__powerpc64__"); \
300 builtin_define ("__PIC__"); \
301 builtin_assert ("cpu=powerpc64"); \
302 builtin_assert ("machine=powerpc64"); \
306 builtin_define_std ("PPC"); \
307 builtin_define_std ("powerpc"); \
308 builtin_assert ("cpu=powerpc"); \
309 builtin_assert ("machine=powerpc"); \
310 TARGET_OS_SYSV_CPP_BUILTINS (); \
315 #undef CPP_OS_DEFAULT_SPEC
316 #define CPP_OS_DEFAULT_SPEC "%(cpp_os_linux)"
318 /* The GNU C++ standard library currently requires _GNU_SOURCE being
319 defined on glibc-based systems. This temporary hack accomplishes this,
320 it should go away as soon as libstdc++-v3 has a real fix. */
321 #undef CPLUSPLUS_CPP_SPEC
322 #define CPLUSPLUS_CPP_SPEC "-D_GNU_SOURCE %(cpp)"
324 #undef LINK_SHLIB_SPEC
325 #define LINK_SHLIB_SPEC "%{shared:-shared} %{!shared: %{static:-static}}"
327 #undef LIB_DEFAULT_SPEC
328 #define LIB_DEFAULT_SPEC "%(lib_linux)"
330 #undef STARTFILE_DEFAULT_SPEC
331 #define STARTFILE_DEFAULT_SPEC "%(startfile_linux)"
333 #undef ENDFILE_DEFAULT_SPEC
334 #define ENDFILE_DEFAULT_SPEC "%(endfile_linux)"
336 #undef LINK_START_DEFAULT_SPEC
337 #define LINK_START_DEFAULT_SPEC "%(link_start_linux)"
339 #undef LINK_OS_DEFAULT_SPEC
340 #define LINK_OS_DEFAULT_SPEC "%(link_os_linux)"
342 #define LINK_OS_LINUX_SPEC32 "-m elf32ppclinux %{!shared: %{!static: \
343 %{rdynamic:-export-dynamic} \
344 %{!dynamic-linker:-dynamic-linker /lib/ld.so.1}}}"
346 #define LINK_OS_LINUX_SPEC64 "-m elf64ppc %{!shared: %{!static: \
347 %{rdynamic:-export-dynamic} \
348 %{!dynamic-linker:-dynamic-linker /lib64/ld64.so.1}}}"
350 #undef TOC_SECTION_ASM_OP
351 #define TOC_SECTION_ASM_OP \
353 ? "\t.section\t\".toc\",\"aw\"" \
354 : "\t.section\t\".got\",\"aw\"")
356 #undef MINIMAL_TOC_SECTION_ASM_OP
357 #define MINIMAL_TOC_SECTION_ASM_OP \
359 ? "\t.section\t\".toc1\",\"aw\"" \
360 : ((TARGET_RELOCATABLE || flag_pic) \
361 ? "\t.section\t\".got2\",\"aw\"" \
362 : "\t.section\t\".got1\",\"aw\""))
364 #undef TARGET_VERSION
365 #define TARGET_VERSION fprintf (stderr, " (PowerPC64 GNU/Linux)");
367 /* Must be at least as big as our pointer type. */
369 #define SIZE_TYPE (TARGET_64BIT ? "long unsigned int" : "unsigned int")
372 #define PTRDIFF_TYPE (TARGET_64BIT ? "long int" : "int")
375 #define WCHAR_TYPE (TARGET_64BIT ? "int" : "long int")
376 #undef WCHAR_TYPE_SIZE
377 #define WCHAR_TYPE_SIZE 32
379 /* Override rs6000.h definition. */
381 #define ASM_APP_ON "#APP\n"
383 /* Override rs6000.h definition. */
385 #define ASM_APP_OFF "#NO_APP\n"
387 /* PowerPC no-op instruction. */
388 #undef RS6000_CALL_GLUE
389 #define RS6000_CALL_GLUE (TARGET_64BIT ? "nop" : "cror 31,31,31")
392 #define RS6000_MCOUNT "_mcount"
395 /* _init and _fini functions are built from bits spread across many
396 object files, each potentially with a different TOC pointer. For
397 that reason, place a nop after the call so that the linker can
398 restore the TOC pointer if a TOC adjusting call stub is needed. */
399 #define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
400 asm (SECTION_OP "\n" \
406 /* FP save and restore routines. */
407 #undef SAVE_FP_PREFIX
408 #define SAVE_FP_PREFIX (TARGET_64BIT ? "._savef" : "_savefpr_")
409 #undef SAVE_FP_SUFFIX
410 #define SAVE_FP_SUFFIX (TARGET_64BIT ? "" : "_l")
411 #undef RESTORE_FP_PREFIX
412 #define RESTORE_FP_PREFIX (TARGET_64BIT ? "._restf" : "_restfpr_")
413 #undef RESTORE_FP_SUFFIX
414 #define RESTORE_FP_SUFFIX (TARGET_64BIT ? "" : "_l")
416 /* Dwarf2 debugging. */
417 #undef PREFERRED_DEBUGGING_TYPE
418 #define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
420 /* This is how to declare the size of a function. */
421 #undef ASM_DECLARE_FUNCTION_SIZE
422 #define ASM_DECLARE_FUNCTION_SIZE(FILE, FNAME, DECL) \
425 if (!flag_inhibit_size_directive) \
427 fputs ("\t.size\t", (FILE)); \
429 putc ('.', (FILE)); \
430 assemble_name ((FILE), (FNAME)); \
431 fputs (",.-", (FILE)); \
433 putc ('.', (FILE)); \
434 assemble_name ((FILE), (FNAME)); \
435 putc ('\n', (FILE)); \
440 /* Return nonzero if this entry is to be written into the constant
441 pool in a special way. We do so if this is a SYMBOL_REF, LABEL_REF
442 or a CONST containing one of them. If -mfp-in-toc (the default),
443 we also do this for floating-point constants. We actually can only
444 do this if the FP formats of the target and host machines are the
445 same, but we can't check that since not every file that uses
446 GO_IF_LEGITIMATE_ADDRESS_P includes real.h. We also do this when
447 we can write the entry into the TOC and the entry is not larger
450 #undef ASM_OUTPUT_SPECIAL_POOL_ENTRY_P
451 #define ASM_OUTPUT_SPECIAL_POOL_ENTRY_P(X, MODE) \
453 && (GET_CODE (X) == SYMBOL_REF \
454 || (GET_CODE (X) == CONST && GET_CODE (XEXP (X, 0)) == PLUS \
455 && GET_CODE (XEXP (XEXP (X, 0), 0)) == SYMBOL_REF) \
456 || GET_CODE (X) == LABEL_REF \
457 || (GET_CODE (X) == CONST_INT \
458 && GET_MODE_BITSIZE (MODE) <= GET_MODE_BITSIZE (Pmode)) \
459 || (GET_CODE (X) == CONST_DOUBLE \
461 && (TARGET_POWERPC64 \
462 || TARGET_MINIMAL_TOC \
463 || (GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
464 && ! TARGET_NO_FP_IN_TOC))) \
466 && !TARGET_NO_FP_IN_TOC \
467 && !TARGET_RELOCATABLE \
468 && GET_MODE_CLASS (GET_MODE (X)) == MODE_FLOAT \
469 && BITS_PER_WORD == HOST_BITS_PER_INT)))))
471 /* This is the same as the dbxelf.h version, except that we need to
472 use the function code label, not the function descriptor. */
473 #undef ASM_OUTPUT_SOURCE_LINE
474 #define ASM_OUTPUT_SOURCE_LINE(FILE, LINE, COUNTER) \
478 ASM_GENERATE_INTERNAL_LABEL (temp, "LM", COUNTER); \
479 fprintf (FILE, "\t.stabn 68,0,%d,", LINE); \
480 assemble_name (FILE, temp); \
484 assemble_name (FILE, \
485 XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0));\
487 (*targetm.asm_out.internal_label) (FILE, "LM", COUNTER); \
491 /* Similarly, we want the function code label here. */
492 #define DBX_OUTPUT_BRAC(FILE, NAME, BRAC) \
496 fprintf (FILE, "%s%d,0,0,", ASM_STABN_OP, BRAC); \
497 assemble_name (FILE, NAME); \
499 if (current_function_func_begin_label != NULL_TREE) \
500 flab = IDENTIFIER_POINTER (current_function_func_begin_label); \
505 flab = XSTR (XEXP (DECL_RTL (current_function_decl), 0), 0); \
507 assemble_name (FILE, flab); \
512 #define DBX_OUTPUT_LBRAC(FILE, NAME) DBX_OUTPUT_BRAC (FILE, NAME, N_LBRAC)
513 #define DBX_OUTPUT_RBRAC(FILE, NAME) DBX_OUTPUT_BRAC (FILE, NAME, N_RBRAC)
515 /* Another case where we want the dot name. */
516 #define DBX_OUTPUT_NFUN(FILE, LSCOPE, DECL) \
519 fprintf (FILE, "%s\"\",%d,0,0,", ASM_STABS_OP, N_FUN); \
520 assemble_name (FILE, LSCOPE); \
524 assemble_name (FILE, XSTR (XEXP (DECL_RTL (DECL), 0), 0)); \
529 /* Select a format to encode pointers in exception handling data. CODE
530 is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
531 true if the symbol may be affected by dynamic relocations. */
532 #undef ASM_PREFERRED_EH_DATA_FORMAT
533 #define ASM_PREFERRED_EH_DATA_FORMAT(CODE, GLOBAL) \
534 ((TARGET_64BIT || flag_pic || TARGET_RELOCATABLE) \
535 ? (((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel \
536 | (TARGET_64BIT ? DW_EH_PE_udata8 : DW_EH_PE_sdata4)) \
539 /* For backward compatibility, we must continue to use the AIX
540 structure return convention. */
541 #undef DRAFT_V4_STRUCT_RET
542 #define DRAFT_V4_STRUCT_RET (!TARGET_64BIT)
544 #define TARGET_ASM_FILE_END file_end_indicate_exec_stack
546 #define TARGET_HAS_F_SETLKW
548 #define LINK_GCC_C_SEQUENCE_SPEC \
549 "%{static:--start-group} %G %L %{static:--end-group}%{!static:%G}"
551 /* Use --as-needed -lgcc_s for eh support. */
552 #ifdef HAVE_LD_AS_NEEDED
553 #define USE_LD_AS_NEEDED 1
556 /* Do code reading to identify a signal frame, and set the frame
557 state data appropriately. See unwind-dw2.c for the structs. */
562 #include <sys/ucontext.h>
564 enum { SIGNAL_FRAMESIZE
= 128 };
568 /* During the 2.5 kernel series the kernel ucontext was changed, but
569 the new layout is compatible with the old one, so we just define
570 and use the old one here for simplicity and compatibility. */
572 struct kernel_old_ucontext
{
573 unsigned long uc_flags
;
574 struct ucontext
*uc_link
;
576 struct sigcontext_struct uc_mcontext
;
579 enum { SIGNAL_FRAMESIZE
= 64 };
586 /* If the current unwind info (FS) does not contain explicit info
587 saving R2, then we have to do a minor amount of code reading to
588 figure out if it was saved. The big problem here is that the
589 code that does the save/restore is generated by the linker, so
590 we have no good way to determine at compile time what to do. */
592 #define MD_FROB_UPDATE_CONTEXT(CTX, FS) \
594 if ((FS)->regs.reg[2].how == REG_UNSAVED) \
598 _Unwind_GetGR ((CTX), LINK_REGISTER_REGNUM); \
599 if (*insn == 0xE8410028) \
600 _Unwind_SetGRPtr ((CTX), 2, (CTX)->cfa + 40); \
604 #define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
606 unsigned char *pc_ = (CONTEXT)->ra; \
607 struct sigcontext *sc_; \
611 /* addi r1, r1, 128; li r0, 0x0077; sc (sigreturn) */ \
612 /* addi r1, r1, 128; li r0, 0x00AC; sc (rt_sigreturn) */ \
613 if (*(unsigned int *) (pc_+0) != 0x38210000 + SIGNAL_FRAMESIZE \
614 || *(unsigned int *) (pc_+8) != 0x44000002) \
616 if (*(unsigned int *) (pc_+4) == 0x38000077) \
619 char gap[SIGNAL_FRAMESIZE]; \
620 struct sigcontext sigctx; \
621 } *rt_ = (CONTEXT)->cfa; \
622 sc_ = &rt_->sigctx; \
624 else if (*(unsigned int *) (pc_+4) == 0x380000AC) \
626 struct rt_sigframe { \
628 struct siginfo *pinfo; \
629 struct ucontext *puc; \
630 } *rt_ = (struct rt_sigframe *) pc_; \
631 sc_ = &rt_->puc->uc_mcontext; \
636 new_cfa_ = sc_->regs->gpr[STACK_POINTER_REGNUM]; \
637 (FS)->cfa_how = CFA_REG_OFFSET; \
638 (FS)->cfa_reg = STACK_POINTER_REGNUM; \
639 (FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \
641 for (i_ = 0; i_ < 32; i_++) \
642 if (i_ != STACK_POINTER_REGNUM) \
644 (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
645 (FS)->regs.reg[i_].loc.offset \
646 = (long)&(sc_->regs->gpr[i_]) - new_cfa_; \
649 (FS)->regs.reg[LINK_REGISTER_REGNUM].how = REG_SAVED_OFFSET; \
650 (FS)->regs.reg[LINK_REGISTER_REGNUM].loc.offset \
651 = (long)&(sc_->regs->link) - new_cfa_; \
653 (FS)->regs.reg[ARG_POINTER_REGNUM].how = REG_SAVED_OFFSET; \
654 (FS)->regs.reg[ARG_POINTER_REGNUM].loc.offset \
655 = (long)&(sc_->regs->nip) - new_cfa_; \
656 (FS)->retaddr_column = ARG_POINTER_REGNUM; \
662 #define MD_FALLBACK_FRAME_STATE_FOR(CONTEXT, FS, SUCCESS) \
664 unsigned char *pc_ = (CONTEXT)->ra; \
665 struct sigcontext *sc_; \
669 /* li r0, 0x7777; sc (sigreturn old) */ \
670 /* li r0, 0x0077; sc (sigreturn new) */ \
671 /* li r0, 0x6666; sc (rt_sigreturn old) */ \
672 /* li r0, 0x00AC; sc (rt_sigreturn new) */ \
673 if (*(unsigned int *) (pc_+4) != 0x44000002) \
675 if (*(unsigned int *) (pc_+0) == 0x38007777 \
676 || *(unsigned int *) (pc_+0) == 0x38000077) \
679 char gap[SIGNAL_FRAMESIZE]; \
680 struct sigcontext sigctx; \
681 } *rt_ = (CONTEXT)->cfa; \
682 sc_ = &rt_->sigctx; \
684 else if (*(unsigned int *) (pc_+0) == 0x38006666 \
685 || *(unsigned int *) (pc_+0) == 0x380000AC) \
687 struct rt_sigframe { \
688 char gap[SIGNAL_FRAMESIZE]; \
689 unsigned long _unused[2]; \
690 struct siginfo *pinfo; \
692 struct siginfo info; \
693 struct kernel_old_ucontext uc; \
694 } *rt_ = (CONTEXT)->cfa; \
695 sc_ = &rt_->uc.uc_mcontext; \
700 new_cfa_ = sc_->regs->gpr[STACK_POINTER_REGNUM]; \
701 (FS)->cfa_how = CFA_REG_OFFSET; \
702 (FS)->cfa_reg = STACK_POINTER_REGNUM; \
703 (FS)->cfa_offset = new_cfa_ - (long) (CONTEXT)->cfa; \
705 for (i_ = 0; i_ < 32; i_++) \
706 if (i_ != STACK_POINTER_REGNUM) \
708 (FS)->regs.reg[i_].how = REG_SAVED_OFFSET; \
709 (FS)->regs.reg[i_].loc.offset \
710 = (long)&(sc_->regs->gpr[i_]) - new_cfa_; \
713 (FS)->regs.reg[LINK_REGISTER_REGNUM].how = REG_SAVED_OFFSET; \
714 (FS)->regs.reg[LINK_REGISTER_REGNUM].loc.offset \
715 = (long)&(sc_->regs->link) - new_cfa_; \
717 (FS)->regs.reg[CR0_REGNO].how = REG_SAVED_OFFSET; \
718 (FS)->regs.reg[CR0_REGNO].loc.offset \
719 = (long)&(sc_->regs->nip) - new_cfa_; \
720 (FS)->retaddr_column = CR0_REGNO; \
727 #define OS_MISSING_POWERPC64 !TARGET_64BIT