/* Definitions of target machine for GNU compiler, for DEC Alpha w/ELF.
- Copyright (C) 1996, 1997, 1998, 1999, 2000 Free Software Foundation, Inc.
+ Copyright (C) 1996-2020 Free Software Foundation, Inc.
Contributed by Richard Henderson (rth@tamu.edu).
-This file is part of GNU CC.
+This file is part of GCC.
-GNU CC is free software; you can redistribute it and/or modify
+GCC is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
-the Free Software Foundation; either version 2, or (at your option)
+the Free Software Foundation; either version 3, or (at your option)
any later version.
-GNU CC is distributed in the hope that it will be useful,
+GCC is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GNU CC; see the file COPYING. If not, write to
-the Free Software Foundation, 59 Temple Place - Suite 330,
-Boston, MA 02111-1307, USA. */
-
-#undef OBJECT_FORMAT_COFF
-#undef EXTENDED_COFF
-#define OBJECT_FORMAT_ELF
-
-#define DBX_DEBUGGING_INFO
-#define DWARF2_DEBUGGING_INFO
-
-#undef PREFERRED_DEBUGGING_TYPE
-#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
-
-#undef ASM_FINAL_SPEC
+along with GCC; see the file COPYING3. If not see
+<http://www.gnu.org/licenses/>. */
#undef CC1_SPEC
#define CC1_SPEC "%{G*}"
#undef ASM_SPEC
-#define ASM_SPEC "%{G*} %{relax:-relax} %{!gstabs*:-no-mdebug}%{gstabs*:-mdebug}"
-
-#undef LINK_SPEC
-#define LINK_SPEC "-m elf64alpha %{G*} %{relax:-relax} \
- %{O*:-O3} %{!O*:-O1} \
- %{shared:-shared} \
- %{!shared: \
- %{!static: \
- %{rdynamic:-export-dynamic} \
- %{!dynamic-linker:-dynamic-linker %(elf_dynamic_linker)}} \
- %{static:-static}}"
-
-/* Output at beginning of assembler file. */
-#undef ASM_FILE_START
-#define ASM_FILE_START(FILE) \
-do { \
- if (write_symbols == DBX_DEBUG) \
- { \
- alpha_write_verstamp (FILE); \
- output_file_directive (FILE, main_input_filename); \
- } \
- fprintf (FILE, "\t.set noat\n"); \
- fprintf (FILE, "\t.set noreorder\n"); \
- if (TARGET_BWX | TARGET_MAX | TARGET_FIX | TARGET_CIX) \
- { \
- fprintf (FILE, "\t.arch %s\n", \
- (TARGET_CPU_EV6 ? "ev6" \
- : TARGET_MAX ? "pca56" : "ev56")); \
- } \
-} while (0)
-
-#undef IDENT_ASM_OP
-#define IDENT_ASM_OP "\t.ident\t"
-
-/* Allow #sccs in preprocessor. */
-#define SCCS_DIRECTIVE
-
-/* Output #ident as a .ident. */
-#undef ASM_OUTPUT_IDENT
-#define ASM_OUTPUT_IDENT(FILE, NAME) \
- fprintf (FILE, "%s\"%s\"\n", IDENT_ASM_OP, NAME);
-
-/* This is how to allocate empty space in some section. The .zero
- pseudo-op is used for this on most svr4 assemblers. */
+#define ASM_SPEC "%{G*} %{relax:-relax} %{!gstabs*:-no-mdebug}%{gstabs*:-mdebug} %{mcpu=*:-m%*}"
-#undef SKIP_ASM_OP
-#define SKIP_ASM_OP "\t.zero\t"
+/* Do not output a .file directive at the beginning of the input file. */
+
+#undef TARGET_ASM_FILE_START_FILE_DIRECTIVE
+#define TARGET_ASM_FILE_START_FILE_DIRECTIVE false
-#undef ASM_OUTPUT_SKIP
-#define ASM_OUTPUT_SKIP(FILE, SIZE) \
- fprintf (FILE, "%s%u\n", SKIP_ASM_OP, (SIZE))
+/* This is how to output an assembler line
+ that says to advance the location counter
+ to a multiple of 2**LOG bytes. */
-/* Output the label which precedes a jumptable. Note that for all svr4
- systems where we actually generate jumptables (which is to say every
- svr4 target except i386, where we use casesi instead) we put the jump-
- tables into the .rodata section and since other stuff could have been
- put into the .rodata section prior to any given jumptable, we have to
- make sure that the location counter for the .rodata section gets pro-
- perly re-aligned prior to the actual beginning of the jump table. */
-
-#undef ALIGN_ASM_OP
-#define ALIGN_ASM_OP "\t.align\t"
-
-#ifndef ASM_OUTPUT_BEFORE_CASE_LABEL
-#define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE, PREFIX, NUM, TABLE) \
- ASM_OUTPUT_ALIGN ((FILE), 2);
-#endif
-
-#undef ASM_OUTPUT_CASE_LABEL
-#define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, JUMPTABLE) \
- do { \
- ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE) \
- ASM_OUTPUT_INTERNAL_LABEL (FILE, PREFIX, NUM); \
- } while (0)
-
-/* The standard SVR4 assembler seems to require that certain builtin
- library routines (e.g. .udiv) be explicitly declared as .globl
- in each assembly file where they are referenced. */
-
-#undef ASM_OUTPUT_EXTERNAL_LIBCALL
-#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
- ASM_GLOBALIZE_LABEL (FILE, XSTR (FUN, 0))
-
-/* This says how to output assembler code to declare an
- uninitialized external linkage data object. Under SVR4,
- the linker seems to want the alignment of data objects
- to depend on their types. We do exactly that here. */
-
-#undef COMMON_ASM_OP
-#define COMMON_ASM_OP "\t.comm\t"
-
-#undef ASM_OUTPUT_ALIGNED_COMMON
-#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
-do { \
- fprintf ((FILE), "%s", COMMON_ASM_OP); \
- assemble_name ((FILE), (NAME)); \
- fprintf ((FILE), ",%u,%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
-} while (0)
+#define ASM_OUTPUT_ALIGN(FILE,LOG) \
+ if ((LOG) != 0) \
+ fprintf (FILE, "\t.align %d\n", LOG);
/* This says how to output assembler code to declare an
uninitialized internal linkage data object. Under SVR4,
#undef ASM_OUTPUT_ALIGNED_LOCAL
#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
do { \
- if ((SIZE) <= g_switch_value) \
- sbss_section(); \
+ if ((SIZE) <= (unsigned HOST_WIDE_INT) g_switch_value) \
+ switch_to_section (sbss_section); \
else \
- bss_section(); \
- fprintf (FILE, "%s", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- putc (',', FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
- putc ('\n', FILE); \
+ switch_to_section (bss_section); \
+ ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
if (!flag_inhibit_size_directive) \
- { \
- fprintf (FILE, "%s", SIZE_ASM_OP); \
- assemble_name (FILE, NAME); \
- fprintf (FILE, ",%d\n", (SIZE)); \
- } \
+ ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \
ASM_OUTPUT_ALIGN ((FILE), exact_log2((ALIGN) / BITS_PER_UNIT)); \
ASM_OUTPUT_LABEL(FILE, NAME); \
- ASM_OUTPUT_SKIP((FILE), (SIZE)); \
+ ASM_OUTPUT_SKIP((FILE), (SIZE) ? (SIZE) : 1); \
} while (0)
-/* This is the pseudo-op used to generate a 64-bit word of data with a
- specific value in some section. */
-
-#undef INT_ASM_OP
-#define INT_ASM_OP "\t.quad\t"
-
-/* Biggest alignment supported by the object file format of this
- machine. Use this macro to limit the alignment which can be
- specified using the `__attribute__ ((aligned (N)))' construct. If
- not defined, the default value is `BIGGEST_ALIGNMENT'.
-
- This value is really 2^63. Since gcc figures the alignment in bits,
- we could only potentially get to 2^60 on suitible hosts. Due to other
- considerations in varasm, we must restrict this to what fits in an int. */
-
-#undef MAX_OFILE_ALIGNMENT
-#define MAX_OFILE_ALIGNMENT \
- (1 << (HOST_BITS_PER_INT < 64 ? HOST_BITS_PER_INT - 2 : 62))
-
-/* This is the pseudo-op used to generate a contiguous sequence of byte
- values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
- AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */
-
-#undef ASCII_DATA_ASM_OP
-#define ASCII_DATA_ASM_OP "\t.ascii\t"
-
-/* Support const sections and the ctors and dtors sections for g++.
- Note that there appears to be two different ways to support const
- sections at the moment. You can either #define the symbol
- READONLY_DATA_SECTION (giving it some code which switches to the
- readonly data section) or else you can #define the symbols
- EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and
- SELECT_RTX_SECTION. We do both here just to be on the safe side. */
-
-#undef USE_CONST_SECTION
-#define USE_CONST_SECTION 1
+/* This says how to output assembler code to declare an
+ uninitialized external linkage data object. */
-#undef CONST_SECTION_ASM_OP
-#define CONST_SECTION_ASM_OP "\t.section\t.rodata"
+#undef ASM_OUTPUT_ALIGNED_BSS
+#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
+do { \
+ ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \
+} while (0)
#undef BSS_SECTION_ASM_OP
#define BSS_SECTION_ASM_OP "\t.section\t.bss"
#undef SDATA_SECTION_ASM_OP
#define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\"aw\""
-/* On svr4, we *do* have support for the .init and .fini sections, and we
- can put stuff in there to be executed before and after `main'. We let
- crtstuff.c and other files know this by defining the following symbols.
- The definitions say how to change sections to the .init and .fini
- sections. This is the same for all known svr4 assemblers. */
-
-#undef INIT_SECTION_ASM_OP
-#define INIT_SECTION_ASM_OP "\t.section\t.init"
-#undef FINI_SECTION_ASM_OP
-#define FINI_SECTION_ASM_OP "\t.section\t.fini"
-
-/* A default list of other sections which we might be "in" at any given
- time. For targets that use additional sections (e.g. .tdesc) you
- should override this definition in the target-specific file which
- includes this file. */
-
-#undef EXTRA_SECTIONS
-#define EXTRA_SECTIONS in_const, in_sbss, in_sdata
-
-/* A default list of extra section function definitions. For targets
- that use additional sections (e.g. .tdesc) you should override this
- definition in the target-specific file which includes this file. */
-
-#undef EXTRA_SECTION_FUNCTIONS
-#define EXTRA_SECTION_FUNCTIONS \
- CONST_SECTION_FUNCTION \
- SECTION_FUNCTION_TEMPLATE(sbss_section, in_sbss, SBSS_SECTION_ASM_OP) \
- SECTION_FUNCTION_TEMPLATE(sdata_section, in_sdata, SDATA_SECTION_ASM_OP)
-
-extern void ctors_section PARAMS ((void));
-extern void dtors_section PARAMS ((void));
-extern void sbss_section PARAMS ((void));
-extern void sdata_section PARAMS ((void));
-
-#undef READONLY_DATA_SECTION
-#define READONLY_DATA_SECTION() const_section ()
-
-#undef CONST_SECTION_FUNCTION
-#define CONST_SECTION_FUNCTION \
-void \
-const_section () \
-{ \
- if (!USE_CONST_SECTION) \
- text_section(); \
- else if (in_section != in_const) \
- { \
- fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \
- in_section = in_const; \
- } \
-}
-
-#undef SECTION_FUNCTION_TEMPLATE
-#define SECTION_FUNCTION_TEMPLATE(FN, ENUM, OP) \
-void FN () \
-{ \
- if (in_section != ENUM) \
- { \
- fprintf (asm_out_file, "%s\n", OP); \
- in_section = ENUM; \
- } \
-}
-
-/* Switch into a generic section. */
-#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
-
-/* A C statement or statements to switch to the appropriate
- section for output of DECL. DECL is either a `VAR_DECL' node
- or a constant of some sort. RELOC indicates whether forming
- the initial value of DECL requires link-time relocations.
-
- Set SECNUM to:
- 0 .text
- 1 .rodata
- 2 .data
- 3 .sdata
- 4 .bss
- 5 .sbss
-*/
-
-#define DO_SELECT_SECTION(SECNUM, DECL, RELOC) \
- do \
- { \
- SECNUM = 1; \
- if (TREE_CODE (DECL) == FUNCTION_DECL) \
- SECNUM = 0; \
- else if (TREE_CODE (DECL) == STRING_CST) \
- { \
- if (flag_writable_strings) \
- SECNUM = 2; \
- } \
- else if (TREE_CODE (DECL) == VAR_DECL) \
- { \
- if (DECL_INITIAL (DECL) == NULL \
- || DECL_INITIAL (DECL) == error_mark_node) \
- SECNUM = 4; \
- else if ((flag_pic && RELOC) \
- || ! TREE_READONLY (DECL) \
- || TREE_SIDE_EFFECTS (DECL) \
- || ! TREE_CONSTANT (DECL_INITIAL (DECL))) \
- SECNUM = 2; \
- } \
- else if (TREE_CODE (DECL) == CONSTRUCTOR) \
- { \
- if ((flag_pic && RELOC) \
- || ! TREE_READONLY (DECL) \
- || TREE_SIDE_EFFECTS (DECL) \
- || ! TREE_CONSTANT (DECL)) \
- SECNUM = 2; \
- } \
- \
- /* Select small data sections based on size. */ \
- if (SECNUM >= 2) \
- { \
- int size = int_size_in_bytes (TREE_TYPE (DECL)); \
- if (size >= 0 && size <= g_switch_value) \
- SECNUM += 1; \
- } \
- } \
- while (0)
-
-#undef SELECT_SECTION
-#define SELECT_SECTION(DECL, RELOC) \
- do \
- { \
- typedef void (*sec_fn) PARAMS ((void)); \
- static sec_fn const sec_functions[6] = \
- { \
- text_section, \
- const_section, \
- data_section, \
- sdata_section, \
- bss_section, \
- sbss_section \
- }; \
- \
- int sec; \
- \
- DO_SELECT_SECTION (sec, DECL, RELOC); \
- \
- (*sec_functions[sec]) (); \
- } \
- while (0)
-
-#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
-
-#undef UNIQUE_SECTION
-#define UNIQUE_SECTION(DECL, RELOC) \
- do \
- { \
- static const char * const prefixes[6][2] = \
- { \
- { ".text.", ".gnu.linkonce.t." }, \
- { ".rodata.", ".gnu.linkonce.r." }, \
- { ".data.", ".gnu.linkonce.d." }, \
- { ".sdata.", ".gnu.linkonce.s." }, \
- { ".bss.", ".gnu.linkonce.b." }, \
- { ".sbss.", ".gnu.linkonce.sb." } \
- }; \
- \
- int nlen, plen, sec; \
- const char *name, *prefix; \
- char *string; \
- \
- DO_SELECT_SECTION (sec, DECL, RELOC); \
- \
- name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \
- STRIP_NAME_ENCODING (name, name); \
- nlen = strlen (name); \
- \
- prefix = prefixes[sec][DECL_ONE_ONLY(DECL)]; \
- plen = strlen (prefix); \
- \
- string = alloca (nlen + plen + 1); \
- \
- memcpy (string, prefix, plen); \
- memcpy (string + plen, name, nlen + 1); \
- \
- DECL_SECTION_NAME (DECL) = build_string (nlen + plen, string); \
- } \
- while (0)
-
-/* A C statement or statements to switch to the appropriate
- section for output of RTX in mode MODE. RTX is some kind
- of constant in RTL. The argument MODE is redundant except
- in the case of a `const_int' rtx. Currently, these always
- go into the const section. */
-
-#undef SELECT_RTX_SECTION
-#define SELECT_RTX_SECTION(MODE, RTX) \
- const_section()
-
-/* Define the strings used for the special svr4 .type and .size directives.
- These strings generally do not vary from one system running svr4 to
- another, but if a given system (e.g. m88k running svr) needs to use
- different pseudo-op names for these, they may be overridden in the
- file which includes this one. */
-
-#undef TYPE_ASM_OP
-#define TYPE_ASM_OP "\t.type\t"
-#undef SIZE_ASM_OP
-#define SIZE_ASM_OP "\t.size\t"
-
-/* This is how we tell the assembler that a symbol is weak. */
-
-#undef ASM_WEAKEN_LABEL
-#define ASM_WEAKEN_LABEL(FILE, NAME) \
- do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
- fputc ('\n', FILE); } while (0)
-
/* This is how we tell the assembler that two symbols have the same value. */
#undef ASM_OUTPUT_DEF
-#define ASM_OUTPUT_DEF(FILE, NAME1, NAME2) \
- do { assemble_name(FILE, NAME1); \
- fputs(" = ", FILE); \
- assemble_name(FILE, NAME2); \
- fputc('\n', FILE); } while (0)
-
-/* The following macro defines the format used to output the second
- operand of the .type assembler directive. Different svr4 assemblers
- expect various different forms for this operand. The one given here
- is just a default. You may need to override it in your machine-
- specific tm.h file (depending upon the particulars of your assembler). */
-
-#undef TYPE_OPERAND_FMT
-#define TYPE_OPERAND_FMT "@%s"
-
-/* Write the extra assembler code needed to declare a function's result.
- Most svr4 assemblers don't require any special declaration of the
- result value, but there are exceptions. */
-
-#ifndef ASM_DECLARE_RESULT
-#define ASM_DECLARE_RESULT(FILE, RESULT)
-#endif
-
-/* These macros generate the special .type and .size directives which
- are used to set the corresponding fields of the linker symbol table
- entries in an ELF object file under SVR4. These macros also output
- the starting labels for the relevant functions/objects. */
-
-/* Write the extra assembler code needed to declare an object properly. */
+#define ASM_OUTPUT_DEF(FILE, ALIAS, NAME) \
+ do { \
+ assemble_name(FILE, ALIAS); \
+ fputs(" = ", FILE); \
+ assemble_name(FILE, NAME); \
+ fputc('\n', FILE); \
+ } while (0)
-#undef ASM_DECLARE_OBJECT_NAME
-#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
+#undef ASM_OUTPUT_DEF_FROM_DECLS
+#define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \
do { \
- HOST_WIDE_INT size; \
- fprintf (FILE, "%s", TYPE_ASM_OP); \
- assemble_name (FILE, NAME); \
- putc (',', FILE); \
- fprintf (FILE, TYPE_OPERAND_FMT, "object"); \
- putc ('\n', FILE); \
- size_directive_output = 0; \
- if (!flag_inhibit_size_directive \
- && DECL_SIZE (DECL) \
- && (size = int_size_in_bytes (TREE_TYPE (DECL))) > 0) \
+ const char *alias = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
+ const char *name = IDENTIFIER_POINTER (TARGET); \
+ if (TREE_CODE (DECL) == FUNCTION_DECL) \
{ \
- size_directive_output = 1; \
- fprintf (FILE, "%s", SIZE_ASM_OP); \
- assemble_name (FILE, NAME); \
- fputc (',', FILE); \
- fprintf (FILE, HOST_WIDE_INT_PRINT_DEC, size); \
- fputc ('\n', FILE); \
+ fputc ('$', FILE); \
+ assemble_name (FILE, alias); \
+ fputs ("..ng = $", FILE); \
+ assemble_name (FILE, name); \
+ fputs ("..ng\n", FILE); \
} \
- ASM_OUTPUT_LABEL(FILE, NAME); \
+ ASM_OUTPUT_DEF (FILE, alias, name); \
} while (0)
-/* Output the size directive for a decl in rest_of_decl_compilation
- in the case where we did not do so before the initializer.
- Once we find the error_mark_node, we know that the value of
- size_directive_output was set
- by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
-
-#undef ASM_FINISH_DECLARE_OBJECT
-#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
- do { \
- const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
- HOST_WIDE_INT size; \
- if (!flag_inhibit_size_directive \
- && DECL_SIZE (DECL) \
- && ! AT_END && TOP_LEVEL \
- && DECL_INITIAL (DECL) == error_mark_node \
- && !size_directive_output \
- && (size = int_size_in_bytes (TREE_TYPE (DECL))) > 0) \
- { \
- size_directive_output = 1; \
- fprintf (FILE, "%s", SIZE_ASM_OP); \
- assemble_name (FILE, name); \
- fputc (',', FILE); \
- fprintf (FILE, HOST_WIDE_INT_PRINT_DEC, size); \
- fputc ('\n', FILE); \
- } \
- } while (0)
-
-/* A table of bytes codes used by the ASM_OUTPUT_ASCII and
- ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table
- corresponds to a particular byte value [0..255]. For any
- given byte value, if the value in the corresponding table
- position is zero, the given character can be output directly.
- If the table value is 1, the byte must be output as a \ooo
- octal escape. If the tables value is anything else, then the
- byte value should be output as a \ followed by the value
- in the table. Note that we can use standard UN*X escape
- sequences for many control characters, but we don't use
- \a to represent BEL because some svr4 assemblers (e.g. on
- the i386) don't know about that. Also, we don't use \v
- since some versions of gas, such as 2.2 did not accept it. */
-
-#undef ESCAPES
-#define ESCAPES \
-"\1\1\1\1\1\1\1\1btn\1fr\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
-\0\0\"\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\
-\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\\\0\0\0\
-\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\1\
-\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
-\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
-\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\
-\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1\1"
-
-/* Some svr4 assemblers have a limit on the number of characters which
- can appear in the operand of a .string directive. If your assembler
- has such a limitation, you should define STRING_LIMIT to reflect that
- limit. Note that at least some svr4 assemblers have a limit on the
- actual number of bytes in the double-quoted string, and that they
- count each character in an escape sequence as one byte. Thus, an
- escape sequence like \377 would count as four bytes.
-
- If your target assembler doesn't support the .string directive, you
- should define this to zero. */
-
-#undef STRING_LIMIT
-#define STRING_LIMIT ((unsigned) 256)
-#undef STRING_ASM_OP
-#define STRING_ASM_OP "\t.string\t"
-
-/* GAS is the only Alpha/ELF assembler. */
-#undef TARGET_GAS
-#define TARGET_GAS (1)
-
-/* Provide a STARTFILE_SPEC appropriate for ELF. Here we add the
- (even more) magical crtbegin.o file which provides part of the
- support for getting C++ file-scope static object constructed
- before entering `main'.
-
- Don't bother seeing crtstuff.c -- there is absolutely no hope
- of getting that file to understand multiple GPs. We provide a
- hand-coded assembly version. */
-
-#undef STARTFILE_SPEC
-#define STARTFILE_SPEC \
- "%{!shared: \
- %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
- crti.o%s %{shared:crtbeginS.o%s}%{!shared:crtbegin.o%s}"
-
-/* Provide a ENDFILE_SPEC appropriate for ELF. Here we tack on the
- magical crtend.o file which provides part of the support for
- getting C++ file-scope static object constructed before entering
- `main', followed by a normal ELF "finalizer" file, `crtn.o'. */
-
-#undef ENDFILE_SPEC
-#define ENDFILE_SPEC \
- "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
- %{shared:crtendS.o%s}%{!shared:crtend.o%s} crtn.o%s"
-
-/* We support #pragma. */
-#define HANDLE_SYSV_PRAGMA
-
-/* Undo the auto-alignment stuff from alpha.h. ELF has unaligned data
- pseudos natively. */
-#undef UNALIGNED_SHORT_ASM_OP
-#undef UNALIGNED_INT_ASM_OP
-#undef UNALIGNED_DOUBLE_INT_ASM_OP
+/* This variable should be set to 'true' if the target ABI requires
+ unwinding tables even when exceptions are not used. */
+#define TARGET_UNWIND_TABLES_DEFAULT true
/* Select a format to encode pointers in exception handling data. CODE
is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
only EH sections. */
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
(((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4)
+
+/* If defined, a C statement to be executed just prior to the output of
+ assembler code for INSN. */
+#define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) \
+ (alpha_this_literal_sequence_number = 0, \
+ alpha_this_gpdisp_sequence_number = 0)
+extern int alpha_this_literal_sequence_number;
+extern int alpha_this_gpdisp_sequence_number;
+
+/* Since the bits of the _init and _fini function is spread across
+ many object files, each potentially with its own GP, we must assume
+ we need to load our GP. Further, the .init/.fini section can
+ easily be more than 4MB away from the function to call so we can't
+ use bsr. */
+#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
+ asm (SECTION_OP "\n" \
+" br $29,1f\n" \
+"1: ldgp $29,0($29)\n" \
+" unop\n" \
+" jsr $26," USER_LABEL_PREFIX #FUNC "\n" \
+" .align 3\n" \
+" .previous");
+
+/* If we have the capability create headers for efficient EH lookup.
+ As of Jan 2002, only glibc 2.2.4 can actually make use of this, but
+ I imagine that other systems will catch up. In the meantime, it
+ doesn't harm to make sure that the data exists to be used later. */
+#if defined(HAVE_LD_EH_FRAME_HDR)
+#define LINK_EH_SPEC "%{!static|static-pie:--eh-frame-hdr} "
+#endif