/* Definitions of target machine for GNU compiler, for DEC Alpha w/ELF.
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/* Definitions of target machine for GNU compiler, for DEC Alpha w/ELF.
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Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2007, 2008,
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Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2007, 2008,
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2009, 2010 Free Software Foundation, Inc.
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2009, 2010 Free Software Foundation, Inc.
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Contributed by Richard Henderson (rth@tamu.edu).
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Contributed by Richard Henderson (rth@tamu.edu).
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|
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This file is part of GCC.
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This file is part of GCC.
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GCC is free software; you can redistribute it and/or modify
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GCC is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3, or (at your option)
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the Free Software Foundation; either version 3, or (at your option)
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any later version.
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any later version.
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|
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GCC is distributed in the hope that it will be useful,
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GCC is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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GNU General Public License for more details.
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|
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You should have received a copy of the GNU General Public License
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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING3. If not see
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along with GCC; see the file COPYING3. If not see
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<http://www.gnu.org/licenses/>. */
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<http://www.gnu.org/licenses/>. */
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#undef OBJECT_FORMAT_COFF
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#undef OBJECT_FORMAT_COFF
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#undef EXTENDED_COFF
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#undef EXTENDED_COFF
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#define OBJECT_FORMAT_ELF
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#define OBJECT_FORMAT_ELF
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/* ??? Move all SDB stuff from alpha.h to osf.h. */
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/* ??? Move all SDB stuff from alpha.h to osf.h. */
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#undef SDB_DEBUGGING_INFO
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#undef SDB_DEBUGGING_INFO
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#undef MIPS_DEBUGGING_INFO
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#undef MIPS_DEBUGGING_INFO
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#undef DBX_DEBUGGING_INFO
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#undef DBX_DEBUGGING_INFO
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|
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#define DWARF2_DEBUGGING_INFO 1
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#define DWARF2_DEBUGGING_INFO 1
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|
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#undef PREFERRED_DEBUGGING_TYPE
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#undef PREFERRED_DEBUGGING_TYPE
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#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
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#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
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|
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#undef ASM_FINAL_SPEC
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#undef ASM_FINAL_SPEC
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|
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/* alpha/ doesn't use elfos.h for some reason. */
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/* alpha/ doesn't use elfos.h for some reason. */
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#define TARGET_OBJFMT_CPP_BUILTINS() \
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#define TARGET_OBJFMT_CPP_BUILTINS() \
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do \
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do \
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{ \
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{ \
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builtin_define ("__ELF__"); \
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builtin_define ("__ELF__"); \
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} \
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} \
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while (0)
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while (0)
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#undef CC1_SPEC
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#undef CC1_SPEC
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#define CC1_SPEC "%{G*}"
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#define CC1_SPEC "%{G*}"
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|
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#undef ASM_SPEC
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#undef ASM_SPEC
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#define ASM_SPEC "%{G*} %{relax:-relax} %{!gstabs*:-no-mdebug}%{gstabs*:-mdebug}"
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#define ASM_SPEC "%{G*} %{relax:-relax} %{!gstabs*:-no-mdebug}%{gstabs*:-mdebug}"
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|
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#undef IDENT_ASM_OP
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#undef IDENT_ASM_OP
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#define IDENT_ASM_OP "\t.ident\t"
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#define IDENT_ASM_OP "\t.ident\t"
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|
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/* Output #ident as a .ident. */
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/* Output #ident as a .ident. */
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#undef ASM_OUTPUT_IDENT
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#undef ASM_OUTPUT_IDENT
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#define ASM_OUTPUT_IDENT(FILE, NAME) \
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#define ASM_OUTPUT_IDENT(FILE, NAME) \
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fprintf (FILE, "%s\"%s\"\n", IDENT_ASM_OP, NAME);
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fprintf (FILE, "%s\"%s\"\n", IDENT_ASM_OP, NAME);
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/* This is how to allocate empty space in some section. The .zero
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/* This is how to allocate empty space in some section. The .zero
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pseudo-op is used for this on most svr4 assemblers. */
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pseudo-op is used for this on most svr4 assemblers. */
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#undef SKIP_ASM_OP
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#undef SKIP_ASM_OP
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#define SKIP_ASM_OP "\t.zero\t"
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#define SKIP_ASM_OP "\t.zero\t"
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#undef ASM_OUTPUT_SKIP
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#undef ASM_OUTPUT_SKIP
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#define ASM_OUTPUT_SKIP(FILE, SIZE) \
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#define ASM_OUTPUT_SKIP(FILE, SIZE) \
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fprintf (FILE, "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n", SKIP_ASM_OP, (SIZE))
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fprintf (FILE, "%s"HOST_WIDE_INT_PRINT_UNSIGNED"\n", SKIP_ASM_OP, (SIZE))
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/* Output the label which precedes a jumptable. Note that for all svr4
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/* Output the label which precedes a jumptable. Note that for all svr4
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systems where we actually generate jumptables (which is to say every
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systems where we actually generate jumptables (which is to say every
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svr4 target except i386, where we use casesi instead) we put the jump-
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svr4 target except i386, where we use casesi instead) we put the jump-
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tables into the .rodata section and since other stuff could have been
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tables into the .rodata section and since other stuff could have been
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put into the .rodata section prior to any given jumptable, we have to
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put into the .rodata section prior to any given jumptable, we have to
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make sure that the location counter for the .rodata section gets pro-
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make sure that the location counter for the .rodata section gets pro-
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perly re-aligned prior to the actual beginning of the jump table. */
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perly re-aligned prior to the actual beginning of the jump table. */
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#undef ALIGN_ASM_OP
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#undef ALIGN_ASM_OP
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#define ALIGN_ASM_OP "\t.align\t"
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#define ALIGN_ASM_OP "\t.align\t"
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#ifndef ASM_OUTPUT_BEFORE_CASE_LABEL
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#ifndef ASM_OUTPUT_BEFORE_CASE_LABEL
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#define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE, PREFIX, NUM, TABLE) \
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#define ASM_OUTPUT_BEFORE_CASE_LABEL(FILE, PREFIX, NUM, TABLE) \
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ASM_OUTPUT_ALIGN ((FILE), 2);
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ASM_OUTPUT_ALIGN ((FILE), 2);
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#endif
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#endif
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#undef ASM_OUTPUT_CASE_LABEL
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#undef ASM_OUTPUT_CASE_LABEL
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#define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, JUMPTABLE) \
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#define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, JUMPTABLE) \
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do { \
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do { \
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ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE) \
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ASM_OUTPUT_BEFORE_CASE_LABEL (FILE, PREFIX, NUM, JUMPTABLE) \
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(*targetm.asm_out.internal_label) (FILE, PREFIX, NUM); \
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(*targetm.asm_out.internal_label) (FILE, PREFIX, NUM); \
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} while (0)
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} while (0)
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/* The standard SVR4 assembler seems to require that certain builtin
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/* The standard SVR4 assembler seems to require that certain builtin
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library routines (e.g. .udiv) be explicitly declared as .globl
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library routines (e.g. .udiv) be explicitly declared as .globl
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in each assembly file where they are referenced. */
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in each assembly file where they are referenced. */
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#undef ASM_OUTPUT_EXTERNAL_LIBCALL
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#undef ASM_OUTPUT_EXTERNAL_LIBCALL
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#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
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#define ASM_OUTPUT_EXTERNAL_LIBCALL(FILE, FUN) \
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(*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0))
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(*targetm.asm_out.globalize_label) (FILE, XSTR (FUN, 0))
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/* This says how to output assembler code to declare an
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/* This says how to output assembler code to declare an
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uninitialized external linkage data object. Under SVR4,
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uninitialized external linkage data object. Under SVR4,
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the linker seems to want the alignment of data objects
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the linker seems to want the alignment of data objects
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to depend on their types. We do exactly that here. */
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to depend on their types. We do exactly that here. */
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#undef COMMON_ASM_OP
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#undef COMMON_ASM_OP
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#define COMMON_ASM_OP "\t.comm\t"
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#define COMMON_ASM_OP "\t.comm\t"
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#undef ASM_OUTPUT_ALIGNED_COMMON
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#undef ASM_OUTPUT_ALIGNED_COMMON
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#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
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#define ASM_OUTPUT_ALIGNED_COMMON(FILE, NAME, SIZE, ALIGN) \
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do { \
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do { \
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fprintf ((FILE), "%s", COMMON_ASM_OP); \
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fprintf ((FILE), "%s", COMMON_ASM_OP); \
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assemble_name ((FILE), (NAME)); \
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assemble_name ((FILE), (NAME)); \
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fprintf ((FILE), "," HOST_WIDE_INT_PRINT_UNSIGNED ",%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
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fprintf ((FILE), "," HOST_WIDE_INT_PRINT_UNSIGNED ",%u\n", (SIZE), (ALIGN) / BITS_PER_UNIT); \
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} while (0)
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} while (0)
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/* This says how to output assembler code to declare an
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/* This says how to output assembler code to declare an
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uninitialized internal linkage data object. Under SVR4,
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uninitialized internal linkage data object. Under SVR4,
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the linker seems to want the alignment of data objects
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the linker seems to want the alignment of data objects
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to depend on their types. We do exactly that here. */
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to depend on their types. We do exactly that here. */
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#undef ASM_OUTPUT_ALIGNED_LOCAL
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#undef ASM_OUTPUT_ALIGNED_LOCAL
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#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
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#define ASM_OUTPUT_ALIGNED_LOCAL(FILE, NAME, SIZE, ALIGN) \
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do { \
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do { \
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if ((SIZE) <= (unsigned HOST_WIDE_INT) g_switch_value) \
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if ((SIZE) <= (unsigned HOST_WIDE_INT) g_switch_value) \
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switch_to_section (sbss_section); \
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switch_to_section (sbss_section); \
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else \
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else \
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switch_to_section (bss_section); \
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switch_to_section (bss_section); \
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ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
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ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
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if (!flag_inhibit_size_directive) \
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if (!flag_inhibit_size_directive) \
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ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \
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ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, SIZE); \
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ASM_OUTPUT_ALIGN ((FILE), exact_log2((ALIGN) / BITS_PER_UNIT)); \
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ASM_OUTPUT_ALIGN ((FILE), exact_log2((ALIGN) / BITS_PER_UNIT)); \
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ASM_OUTPUT_LABEL(FILE, NAME); \
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ASM_OUTPUT_LABEL(FILE, NAME); \
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ASM_OUTPUT_SKIP((FILE), (SIZE) ? (SIZE) : 1); \
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ASM_OUTPUT_SKIP((FILE), (SIZE) ? (SIZE) : 1); \
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} while (0)
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} while (0)
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|
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/* This says how to output assembler code to declare an
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/* This says how to output assembler code to declare an
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uninitialized external linkage data object. */
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uninitialized external linkage data object. */
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#undef ASM_OUTPUT_ALIGNED_BSS
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#undef ASM_OUTPUT_ALIGNED_BSS
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#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
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#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \
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do { \
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do { \
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ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \
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ASM_OUTPUT_ALIGNED_LOCAL (FILE, NAME, SIZE, ALIGN); \
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} while (0)
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} while (0)
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/* The biggest alignment supported by ELF in bits. 32-bit ELF
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/* The biggest alignment supported by ELF in bits. 32-bit ELF
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supports section alignment up to (0x80000000 * 8), while
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supports section alignment up to (0x80000000 * 8), while
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64-bit ELF supports (0x8000000000000000 * 8). If this macro
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64-bit ELF supports (0x8000000000000000 * 8). If this macro
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is not defined, the default is the largest alignment supported
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is not defined, the default is the largest alignment supported
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by 32-bit ELF and representable on a 32-bit host. Use this
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by 32-bit ELF and representable on a 32-bit host. Use this
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macro to limit the alignment which can be specified using
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macro to limit the alignment which can be specified using
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the `__attribute__ ((aligned (N)))' construct.
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the `__attribute__ ((aligned (N)))' construct.
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|
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This value is really 2^63. Since gcc figures the alignment in bits,
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This value is really 2^63. Since gcc figures the alignment in bits,
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we could only potentially get to 2^60 on suitable hosts. Due to other
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we could only potentially get to 2^60 on suitable hosts. Due to other
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considerations in varasm, we must restrict this to what fits in an int. */
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considerations in varasm, we must restrict this to what fits in an int. */
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#undef MAX_OFILE_ALIGNMENT
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#undef MAX_OFILE_ALIGNMENT
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#define MAX_OFILE_ALIGNMENT (((unsigned int) 1 << 28) * 8)
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#define MAX_OFILE_ALIGNMENT (((unsigned int) 1 << 28) * 8)
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|
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/* This is the pseudo-op used to generate a contiguous sequence of byte
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/* This is the pseudo-op used to generate a contiguous sequence of byte
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values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
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values from a double-quoted string WITHOUT HAVING A TERMINATING NUL
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AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */
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AUTOMATICALLY APPENDED. This is the same for most svr4 assemblers. */
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#undef ASCII_DATA_ASM_OP
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#undef ASCII_DATA_ASM_OP
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#define ASCII_DATA_ASM_OP "\t.ascii\t"
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#define ASCII_DATA_ASM_OP "\t.ascii\t"
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|
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#undef READONLY_DATA_SECTION_ASM_OP
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#undef READONLY_DATA_SECTION_ASM_OP
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#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata"
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#define READONLY_DATA_SECTION_ASM_OP "\t.section\t.rodata"
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#undef BSS_SECTION_ASM_OP
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#undef BSS_SECTION_ASM_OP
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#define BSS_SECTION_ASM_OP "\t.section\t.bss"
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#define BSS_SECTION_ASM_OP "\t.section\t.bss"
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#undef SBSS_SECTION_ASM_OP
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#undef SBSS_SECTION_ASM_OP
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#define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\"aw\""
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#define SBSS_SECTION_ASM_OP "\t.section\t.sbss,\"aw\""
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#undef SDATA_SECTION_ASM_OP
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#undef SDATA_SECTION_ASM_OP
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#define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\"aw\""
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#define SDATA_SECTION_ASM_OP "\t.section\t.sdata,\"aw\""
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|
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/* On svr4, we *do* have support for the .init and .fini sections, and we
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/* 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
|
can put stuff in there to be executed before and after `main'. We let
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crtstuff.c and other files know this by defining the following symbols.
|
crtstuff.c and other files know this by defining the following symbols.
|
The definitions say how to change sections to the .init and .fini
|
The definitions say how to change sections to the .init and .fini
|
sections. This is the same for all known svr4 assemblers. */
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sections. This is the same for all known svr4 assemblers. */
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|
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#undef INIT_SECTION_ASM_OP
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#undef INIT_SECTION_ASM_OP
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#define INIT_SECTION_ASM_OP "\t.section\t.init"
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#define INIT_SECTION_ASM_OP "\t.section\t.init"
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#undef FINI_SECTION_ASM_OP
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#undef FINI_SECTION_ASM_OP
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#define FINI_SECTION_ASM_OP "\t.section\t.fini"
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#define FINI_SECTION_ASM_OP "\t.section\t.fini"
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|
|
#ifdef HAVE_GAS_SUBSECTION_ORDERING
|
#ifdef HAVE_GAS_SUBSECTION_ORDERING
|
|
|
#define ASM_SECTION_START_OP "\t.subsection\t-1"
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#define ASM_SECTION_START_OP "\t.subsection\t-1"
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|
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/* Output assembly directive to move to the beginning of current section. */
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/* Output assembly directive to move to the beginning of current section. */
|
#define ASM_OUTPUT_SECTION_START(FILE) \
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#define ASM_OUTPUT_SECTION_START(FILE) \
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fprintf ((FILE), "%s\n", ASM_SECTION_START_OP)
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fprintf ((FILE), "%s\n", ASM_SECTION_START_OP)
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|
|
#endif
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#endif
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|
|
/* Switch into a generic section. */
|
/* Switch into a generic section. */
|
#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
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#define TARGET_ASM_NAMED_SECTION default_elf_asm_named_section
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#define TARGET_ASM_SELECT_SECTION default_elf_select_section
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#define TARGET_ASM_SELECT_SECTION default_elf_select_section
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|
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#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
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#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
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|
|
/* Define the strings used for the special svr4 .type and .size directives.
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/* Define the strings used for the special svr4 .type and .size directives.
|
These strings generally do not vary from one system running svr4 to
|
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
|
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
|
different pseudo-op names for these, they may be overridden in the
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file which includes this one. */
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file which includes this one. */
|
|
|
#undef TYPE_ASM_OP
|
#undef TYPE_ASM_OP
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#define TYPE_ASM_OP "\t.type\t"
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#define TYPE_ASM_OP "\t.type\t"
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#undef SIZE_ASM_OP
|
#undef SIZE_ASM_OP
|
#define SIZE_ASM_OP "\t.size\t"
|
#define SIZE_ASM_OP "\t.size\t"
|
|
|
/* This is how we tell the assembler that a symbol is weak. */
|
/* This is how we tell the assembler that a symbol is weak. */
|
|
|
#undef ASM_WEAKEN_LABEL
|
#undef ASM_WEAKEN_LABEL
|
#define ASM_WEAKEN_LABEL(FILE, NAME) \
|
#define ASM_WEAKEN_LABEL(FILE, NAME) \
|
do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
|
do { fputs ("\t.weak\t", FILE); assemble_name (FILE, NAME); \
|
fputc ('\n', FILE); } while (0)
|
fputc ('\n', FILE); } while (0)
|
|
|
/* This is how we tell the assembler that two symbols have the same value. */
|
/* This is how we tell the assembler that two symbols have the same value. */
|
|
|
#undef ASM_OUTPUT_DEF
|
#undef ASM_OUTPUT_DEF
|
#define ASM_OUTPUT_DEF(FILE, ALIAS, NAME) \
|
#define ASM_OUTPUT_DEF(FILE, ALIAS, NAME) \
|
do { \
|
do { \
|
assemble_name(FILE, ALIAS); \
|
assemble_name(FILE, ALIAS); \
|
fputs(" = ", FILE); \
|
fputs(" = ", FILE); \
|
assemble_name(FILE, NAME); \
|
assemble_name(FILE, NAME); \
|
fputc('\n', FILE); \
|
fputc('\n', FILE); \
|
} while (0)
|
} while (0)
|
|
|
#undef ASM_OUTPUT_DEF_FROM_DECLS
|
#undef ASM_OUTPUT_DEF_FROM_DECLS
|
#define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \
|
#define ASM_OUTPUT_DEF_FROM_DECLS(FILE, DECL, TARGET) \
|
do { \
|
do { \
|
const char *alias = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
|
const char *alias = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
|
const char *name = IDENTIFIER_POINTER (TARGET); \
|
const char *name = IDENTIFIER_POINTER (TARGET); \
|
if (TREE_CODE (DECL) == FUNCTION_DECL) \
|
if (TREE_CODE (DECL) == FUNCTION_DECL) \
|
{ \
|
{ \
|
fputc ('$', FILE); \
|
fputc ('$', FILE); \
|
assemble_name (FILE, alias); \
|
assemble_name (FILE, alias); \
|
fputs ("..ng = $", FILE); \
|
fputs ("..ng = $", FILE); \
|
assemble_name (FILE, name); \
|
assemble_name (FILE, name); \
|
fputs ("..ng\n", FILE); \
|
fputs ("..ng\n", FILE); \
|
} \
|
} \
|
assemble_name(FILE, alias); \
|
assemble_name(FILE, alias); \
|
fputs(" = ", FILE); \
|
fputs(" = ", FILE); \
|
assemble_name(FILE, name); \
|
assemble_name(FILE, name); \
|
fputc('\n', FILE); \
|
fputc('\n', FILE); \
|
} while (0)
|
} while (0)
|
|
|
/* The following macro defines the format used to output the second
|
/* The following macro defines the format used to output the second
|
operand of the .type assembler directive. Different svr4 assemblers
|
operand of the .type assembler directive. Different svr4 assemblers
|
expect various different forms for this operand. The one given here
|
expect various different forms for this operand. The one given here
|
is just a default. You may need to override it in your machine-
|
is just a default. You may need to override it in your machine-
|
specific tm.h file (depending upon the particulars of your assembler). */
|
specific tm.h file (depending upon the particulars of your assembler). */
|
|
|
#undef TYPE_OPERAND_FMT
|
#undef TYPE_OPERAND_FMT
|
#define TYPE_OPERAND_FMT "@%s"
|
#define TYPE_OPERAND_FMT "@%s"
|
|
|
/* Write the extra assembler code needed to declare a function's result.
|
/* Write the extra assembler code needed to declare a function's result.
|
Most svr4 assemblers don't require any special declaration of the
|
Most svr4 assemblers don't require any special declaration of the
|
result value, but there are exceptions. */
|
result value, but there are exceptions. */
|
|
|
#ifndef ASM_DECLARE_RESULT
|
#ifndef ASM_DECLARE_RESULT
|
#define ASM_DECLARE_RESULT(FILE, RESULT)
|
#define ASM_DECLARE_RESULT(FILE, RESULT)
|
#endif
|
#endif
|
|
|
/* These macros generate the special .type and .size directives which
|
/* These macros generate the special .type and .size directives which
|
are used to set the corresponding fields of the linker symbol table
|
are used to set the corresponding fields of the linker symbol table
|
entries in an ELF object file under SVR4. These macros also output
|
entries in an ELF object file under SVR4. These macros also output
|
the starting labels for the relevant functions/objects. */
|
the starting labels for the relevant functions/objects. */
|
|
|
/* Write the extra assembler code needed to declare an object properly. */
|
/* Write the extra assembler code needed to declare an object properly. */
|
|
|
#ifdef HAVE_GAS_GNU_UNIQUE_OBJECT
|
#ifdef HAVE_GAS_GNU_UNIQUE_OBJECT
|
#define USE_GNU_UNIQUE_OBJECT 1
|
#define USE_GNU_UNIQUE_OBJECT 1
|
#else
|
#else
|
#define USE_GNU_UNIQUE_OBJECT 0
|
#define USE_GNU_UNIQUE_OBJECT 0
|
#endif
|
#endif
|
|
|
#undef ASM_DECLARE_OBJECT_NAME
|
#undef ASM_DECLARE_OBJECT_NAME
|
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
|
#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \
|
do { \
|
do { \
|
HOST_WIDE_INT size; \
|
HOST_WIDE_INT size; \
|
\
|
\
|
/* For template static data member instantiations or \
|
/* For template static data member instantiations or \
|
inline fn local statics and their guard variables, use \
|
inline fn local statics and their guard variables, use \
|
gnu_unique_object so that they will be combined even under \
|
gnu_unique_object so that they will be combined even under \
|
RTLD_LOCAL. Don't use gnu_unique_object for typeinfo, \
|
RTLD_LOCAL. Don't use gnu_unique_object for typeinfo, \
|
vtables and other read-only artificial decls. */ \
|
vtables and other read-only artificial decls. */ \
|
if (USE_GNU_UNIQUE_OBJECT && DECL_ONE_ONLY (DECL) \
|
if (USE_GNU_UNIQUE_OBJECT && DECL_ONE_ONLY (DECL) \
|
&& (!DECL_ARTIFICIAL (DECL) || !TREE_READONLY (DECL))) \
|
&& (!DECL_ARTIFICIAL (DECL) || !TREE_READONLY (DECL))) \
|
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "gnu_unique_object"); \
|
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "gnu_unique_object"); \
|
else \
|
else \
|
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
|
ASM_OUTPUT_TYPE_DIRECTIVE (FILE, NAME, "object"); \
|
\
|
\
|
size_directive_output = 0; \
|
size_directive_output = 0; \
|
if (!flag_inhibit_size_directive \
|
if (!flag_inhibit_size_directive \
|
&& (DECL) && DECL_SIZE (DECL)) \
|
&& (DECL) && DECL_SIZE (DECL)) \
|
{ \
|
{ \
|
size_directive_output = 1; \
|
size_directive_output = 1; \
|
size = int_size_in_bytes (TREE_TYPE (DECL)); \
|
size = int_size_in_bytes (TREE_TYPE (DECL)); \
|
ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \
|
ASM_OUTPUT_SIZE_DIRECTIVE (FILE, NAME, size); \
|
} \
|
} \
|
\
|
\
|
ASM_OUTPUT_LABEL (FILE, NAME); \
|
ASM_OUTPUT_LABEL (FILE, NAME); \
|
} while (0)
|
} while (0)
|
|
|
/* Output the size directive for a decl in rest_of_decl_compilation
|
/* Output the size directive for a decl in rest_of_decl_compilation
|
in the case where we did not do so before the initializer.
|
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
|
Once we find the error_mark_node, we know that the value of
|
size_directive_output was set
|
size_directive_output was set
|
by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
|
by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */
|
|
|
#undef ASM_FINISH_DECLARE_OBJECT
|
#undef ASM_FINISH_DECLARE_OBJECT
|
#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
|
#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \
|
do { \
|
do { \
|
const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
|
const char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \
|
HOST_WIDE_INT size; \
|
HOST_WIDE_INT size; \
|
if (!flag_inhibit_size_directive \
|
if (!flag_inhibit_size_directive \
|
&& DECL_SIZE (DECL) \
|
&& DECL_SIZE (DECL) \
|
&& ! AT_END && TOP_LEVEL \
|
&& ! AT_END && TOP_LEVEL \
|
&& DECL_INITIAL (DECL) == error_mark_node \
|
&& DECL_INITIAL (DECL) == error_mark_node \
|
&& !size_directive_output \
|
&& !size_directive_output \
|
&& (size = int_size_in_bytes (TREE_TYPE (DECL))) > 0) \
|
&& (size = int_size_in_bytes (TREE_TYPE (DECL))) > 0) \
|
{ \
|
{ \
|
size_directive_output = 1; \
|
size_directive_output = 1; \
|
ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \
|
ASM_OUTPUT_SIZE_DIRECTIVE (FILE, name, size); \
|
} \
|
} \
|
} while (0)
|
} while (0)
|
|
|
/* A table of bytes codes used by the ASM_OUTPUT_ASCII and
|
/* A table of bytes codes used by the ASM_OUTPUT_ASCII and
|
ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table
|
ASM_OUTPUT_LIMITED_STRING macros. Each byte in the table
|
corresponds to a particular byte value [0..255]. For any
|
corresponds to a particular byte value [0..255]. For any
|
given byte value, if the value in the corresponding table
|
given byte value, if the value in the corresponding table
|
position is zero, the given character can be output directly.
|
position is zero, the given character can be output directly.
|
If the table value is 1, the byte must be output as a \ooo
|
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
|
octal escape. If the tables value is anything else, then the
|
byte value should be output as a \ followed by the value
|
byte value should be output as a \ followed by the value
|
in the table. Note that we can use standard UN*X escape
|
in the table. Note that we can use standard UN*X escape
|
sequences for many control characters, but we don't use
|
sequences for many control characters, but we don't use
|
\a to represent BEL because some svr4 assemblers (e.g. on
|
\a to represent BEL because some svr4 assemblers (e.g. on
|
the i386) don't know about that. Also, we don't use \v
|
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. */
|
since some versions of gas, such as 2.2 did not accept it. */
|
|
|
#undef ELF_ASCII_ESCAPES
|
#undef ELF_ASCII_ESCAPES
|
#define ELF_ASCII_ESCAPES \
|
#define ELF_ASCII_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\
|
"\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\
|
\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\
|
\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\
|
\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
|
/* Some svr4 assemblers have a limit on the number of characters which
|
can appear in the operand of a .string directive. If your assembler
|
can appear in the operand of a .string directive. If your assembler
|
has such a limitation, you should define STRING_LIMIT to reflect that
|
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
|
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
|
actual number of bytes in the double-quoted string, and that they
|
count each character in an escape sequence as one byte. Thus, an
|
count each character in an escape sequence as one byte. Thus, an
|
escape sequence like \377 would count as four bytes.
|
escape sequence like \377 would count as four bytes.
|
|
|
If your target assembler doesn't support the .string directive, you
|
If your target assembler doesn't support the .string directive, you
|
should define this to zero. */
|
should define this to zero. */
|
|
|
#undef ELF_STRING_LIMIT
|
#undef ELF_STRING_LIMIT
|
#define ELF_STRING_LIMIT ((unsigned) 256)
|
#define ELF_STRING_LIMIT ((unsigned) 256)
|
|
|
#undef STRING_ASM_OP
|
#undef STRING_ASM_OP
|
#define STRING_ASM_OP "\t.string\t"
|
#define STRING_ASM_OP "\t.string\t"
|
|
|
/* GAS is the only Alpha/ELF assembler. */
|
/* GAS is the only Alpha/ELF assembler. */
|
#undef TARGET_GAS
|
#undef TARGET_GAS
|
#define TARGET_GAS (1)
|
#define TARGET_GAS (1)
|
|
|
/* Provide a STARTFILE_SPEC appropriate for ELF. Here we add the
|
/* Provide a STARTFILE_SPEC appropriate for ELF. Here we add the
|
(even more) magical crtbegin.o file which provides part of the
|
(even more) magical crtbegin.o file which provides part of the
|
support for getting C++ file-scope static object constructed
|
support for getting C++ file-scope static object constructed
|
before entering `main'. */
|
before entering `main'. */
|
|
|
#undef STARTFILE_SPEC
|
#undef STARTFILE_SPEC
|
#ifdef HAVE_LD_PIE
|
#ifdef HAVE_LD_PIE
|
#define STARTFILE_SPEC \
|
#define STARTFILE_SPEC \
|
"%{!shared: %{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}}\
|
"%{!shared: %{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}}\
|
crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
|
crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
|
#else
|
#else
|
#define STARTFILE_SPEC \
|
#define STARTFILE_SPEC \
|
"%{!shared: %{pg|p:gcrt1.o%s;:crt1.o%s}}\
|
"%{!shared: %{pg|p:gcrt1.o%s;:crt1.o%s}}\
|
crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
|
crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
|
#endif
|
#endif
|
|
|
/* Provide a ENDFILE_SPEC appropriate for ELF. Here we tack on the
|
/* Provide a ENDFILE_SPEC appropriate for ELF. Here we tack on the
|
magical crtend.o file which provides part of the support for
|
magical crtend.o file which provides part of the support for
|
getting C++ file-scope static object constructed before entering
|
getting C++ file-scope static object constructed before entering
|
`main', followed by a normal ELF "finalizer" file, `crtn.o'. */
|
`main', followed by a normal ELF "finalizer" file, `crtn.o'. */
|
|
|
#undef ENDFILE_SPEC
|
#undef ENDFILE_SPEC
|
#define ENDFILE_SPEC \
|
#define ENDFILE_SPEC \
|
"%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
|
"%{Ofast|ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
|
%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
|
%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
|
|
|
/* Select a format to encode pointers in exception handling data. CODE
|
/* 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
|
is 0 for data, 1 for code labels, 2 for function pointers. GLOBAL is
|
true if the symbol may be affected by dynamic relocations.
|
true if the symbol may be affected by dynamic relocations.
|
|
|
Since application size is already constrained to <2GB by the form of
|
Since application size is already constrained to <2GB by the form of
|
the ldgp relocation, we can use a 32-bit pc-relative relocation to
|
the ldgp relocation, we can use a 32-bit pc-relative relocation to
|
static data. Dynamic data is accessed indirectly to allow for read
|
static data. Dynamic data is accessed indirectly to allow for read
|
only EH sections. */
|
only EH sections. */
|
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
|
#define ASM_PREFERRED_EH_DATA_FORMAT(CODE,GLOBAL) \
|
(((GLOBAL) ? DW_EH_PE_indirect : 0) | DW_EH_PE_pcrel | DW_EH_PE_sdata4)
|
(((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
|
/* If defined, a C statement to be executed just prior to the output of
|
assembler code for INSN. */
|
assembler code for INSN. */
|
#define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) \
|
#define FINAL_PRESCAN_INSN(INSN, OPVEC, NOPERANDS) \
|
(alpha_this_literal_sequence_number = 0, \
|
(alpha_this_literal_sequence_number = 0, \
|
alpha_this_gpdisp_sequence_number = 0)
|
alpha_this_gpdisp_sequence_number = 0)
|
extern int alpha_this_literal_sequence_number;
|
extern int alpha_this_literal_sequence_number;
|
extern int alpha_this_gpdisp_sequence_number;
|
extern int alpha_this_gpdisp_sequence_number;
|
|
|
/* Since the bits of the _init and _fini function is spread across
|
/* Since the bits of the _init and _fini function is spread across
|
many object files, each potentially with its own GP, we must assume
|
many object files, each potentially with its own GP, we must assume
|
we need to load our GP. Further, the .init/.fini section can
|
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
|
easily be more than 4MB away from the function to call so we can't
|
use bsr. */
|
use bsr. */
|
#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
|
#define CRT_CALL_STATIC_FUNCTION(SECTION_OP, FUNC) \
|
asm (SECTION_OP "\n" \
|
asm (SECTION_OP "\n" \
|
" br $29,1f\n" \
|
" br $29,1f\n" \
|
"1: ldgp $29,0($29)\n" \
|
"1: ldgp $29,0($29)\n" \
|
" unop\n" \
|
" unop\n" \
|
" jsr $26," USER_LABEL_PREFIX #FUNC "\n" \
|
" jsr $26," USER_LABEL_PREFIX #FUNC "\n" \
|
" .align 3\n" \
|
" .align 3\n" \
|
" .previous");
|
" .previous");
|
|
|
/* If we have the capability create headers for efficient EH lookup.
|
/* 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
|
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
|
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. */
|
doesn't harm to make sure that the data exists to be used later. */
|
#if defined(HAVE_LD_EH_FRAME_HDR)
|
#if defined(HAVE_LD_EH_FRAME_HDR)
|
#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
|
#define LINK_EH_SPEC "%{!static:--eh-frame-hdr} "
|
#endif
|
#endif
|
|
|
/* A C statement (sans semicolon) to output to the stdio stream STREAM
|
/* A C statement (sans semicolon) to output to the stdio stream STREAM
|
any text necessary for declaring the name of an external symbol
|
any text necessary for declaring the name of an external symbol
|
named NAME which is referenced in this compilation but not defined.
|
named NAME which is referenced in this compilation but not defined.
|
It is needed to properly support non-default visibility. */
|
It is needed to properly support non-default visibility. */
|
|
|
#ifndef ASM_OUTPUT_EXTERNAL
|
#ifndef ASM_OUTPUT_EXTERNAL
|
#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
|
#define ASM_OUTPUT_EXTERNAL(FILE, DECL, NAME) \
|
default_elf_asm_output_external (FILE, DECL, NAME)
|
default_elf_asm_output_external (FILE, DECL, NAME)
|
#endif
|
#endif
|
|
|
