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Diffstat (limited to 'gcc-4.9/gcc/config/sparc/sysv4.h')
| -rw-r--r-- | gcc-4.9/gcc/config/sparc/sysv4.h | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/gcc-4.9/gcc/config/sparc/sysv4.h b/gcc-4.9/gcc/config/sparc/sysv4.h new file mode 100644 index 000000000..413d1fc15 --- /dev/null +++ b/gcc-4.9/gcc/config/sparc/sysv4.h @@ -0,0 +1,119 @@ +/* Target definitions for GNU compiler for SPARC running System V.4 + Copyright (C) 1991-2014 Free Software Foundation, Inc. + Contributed by Ron Guilmette (rfg@monkeys.com). + +This file is part of GCC. + +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 3, or (at your option) +any later version. + +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 GCC; see the file COPYING3. If not see +<http://www.gnu.org/licenses/>. */ + +#undef SIZE_TYPE +#define SIZE_TYPE (TARGET_ARCH64 ? "long unsigned int" : "unsigned int") + +#undef PTRDIFF_TYPE +#define PTRDIFF_TYPE (TARGET_ARCH64 ? "long int" : "int") + +/* Undefined some symbols which are appropriate only for typical svr4 + systems, but not for the specific case of svr4 running on a + SPARC. */ + +#undef INIT_SECTION_ASM_OP +#undef FINI_SECTION_ASM_OP +#undef READONLY_DATA_SECTION_ASM_OP +#undef TYPE_OPERAND_FMT +#undef STRING_ASM_OP +#undef COMMON_ASM_OP +#undef SKIP_ASM_OP +#undef SET_ASM_OP /* Has no equivalent. See ASM_OUTPUT_DEF below. */ + +/* Pass -K to the assembler when PIC. */ +#undef ASM_SPEC +#define ASM_SPEC \ + "%{v:-V} %{Qy:} %{!Qn:-Qy} %{Ym,*} \ + %{fpic|fPIC|fpie|fPIE:-K PIC} %(asm_cpu)" + +/* Define the names of various pseudo-op used by the SPARC/svr4 assembler. + Note that many of these are different from the typical pseudo-ops used + by most svr4 assemblers. That is probably due to a (misguided?) attempt + to keep the SPARC/svr4 assembler somewhat compatible with the SPARC/SunOS + assembler. */ + +#define STRING_ASM_OP "\t.asciz\t" +#define COMMON_ASM_OP "\t.common\t" +#define SKIP_ASM_OP "\t.skip\t" + +/* This is the format used to print the second operand of a .type pseudo-op + for the SPARC/svr4 assembler. */ + +#define TYPE_OPERAND_FMT "#%s" + +#undef ASM_OUTPUT_CASE_LABEL +#define ASM_OUTPUT_CASE_LABEL(FILE, PREFIX, NUM, JUMPTABLE) \ +do { ASM_OUTPUT_ALIGN ((FILE), Pmode == SImode ? 2 : 3); \ + (*targetm.asm_out.internal_label) ((FILE), PREFIX, NUM); \ + } while (0) + +/* This is how to equate one symbol to another symbol. The syntax used is + `SYM1=SYM2'. Note that this is different from the way equates are done + with most svr4 assemblers, where the syntax is `.set SYM1,SYM2'. */ + +#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \ + do { fprintf ((FILE), "\t"); \ + assemble_name (FILE, LABEL1); \ + fprintf (FILE, " = "); \ + assemble_name (FILE, LABEL2); \ + fprintf (FILE, "\n"); \ + } while (0) + +/* A set of symbol definitions for assembly pseudo-ops which will + get us switched to various sections of interest. These are used + in all places where we simply want to switch to a section, and + *not* to push the previous section name onto the assembler's + section names stack (as we do often in dwarfout.c). */ + +#define TEXT_SECTION_ASM_OP "\t.section\t\".text\"" +#define DATA_SECTION_ASM_OP "\t.section\t\".data\"" +#define BSS_SECTION_ASM_OP "\t.section\t\".bss\"" +#define READONLY_DATA_SECTION_ASM_OP "\t.section\t\".rodata\"" +#define INIT_SECTION_ASM_OP "\t.section\t\".init\"" +#define FINI_SECTION_ASM_OP "\t.section\t\".fini\"" + +/* Define the pseudo-ops used to switch to the .ctors and .dtors sections. + + Note that we want to give these sections the SHF_WRITE attribute + because these sections will actually contain data (i.e. tables of + addresses of functions in the current root executable or shared library + file) and, in the case of a shared library, the relocatable addresses + will have to be properly resolved/relocated (and then written into) by + the dynamic linker when it actually attaches the given shared library + to the executing process. (Note that on SVR4, you may wish to use the + `-z text' option to the ELF linker, when building a shared library, as + an additional check that you are doing everything right. But if you do + use the `-z text' option when building a shared library, you will get + errors unless the .ctors and .dtors sections are marked as writable + via the SHF_WRITE attribute.) */ + +#undef CTORS_SECTION_ASM_OP +#define CTORS_SECTION_ASM_OP "\t.section\t\".ctors\",#alloc,#write" +#undef DTORS_SECTION_ASM_OP +#define DTORS_SECTION_ASM_OP "\t.section\t\".dtors\",#alloc,#write" + +#undef ASM_OUTPUT_ALIGNED_BSS +#define ASM_OUTPUT_ALIGNED_BSS(FILE, DECL, NAME, SIZE, ALIGN) \ + asm_output_aligned_bss (FILE, DECL, NAME, SIZE, ALIGN) + +/* Override the name of the mcount profiling function. */ + +#undef MCOUNT_FUNCTION +#define MCOUNT_FUNCTION "*_mcount" |