diff options
author | YamaArashi <shadow962@live.com> | 2016-01-06 01:47:28 -0800 |
---|---|---|
committer | YamaArashi <shadow962@live.com> | 2016-01-06 01:47:28 -0800 |
commit | be8b04496302184c6e8f04d6179f9c3afc50aeb6 (patch) | |
tree | 726e2468c0c07add773c0dbd86ab6386844259ae /gcc/config/arm/telf-oabi.h |
initial commit
Diffstat (limited to 'gcc/config/arm/telf-oabi.h')
-rwxr-xr-x | gcc/config/arm/telf-oabi.h | 244 |
1 files changed, 244 insertions, 0 deletions
diff --git a/gcc/config/arm/telf-oabi.h b/gcc/config/arm/telf-oabi.h new file mode 100755 index 0000000..17e85e2 --- /dev/null +++ b/gcc/config/arm/telf-oabi.h @@ -0,0 +1,244 @@ +/* CYGNUS LOCAL (entire file) clm/arm-elf */ +/* Definitions of target machine for GNU compiler, + for Thumb with ELF obj format. + Copyright (C) 1995, 1996, 1997, 1998, 1999 Free Software Foundation, Inc. + +This file is part of GNU CC. + +GNU CC 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) +any later version. + +GNU CC 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. */ + +#define OBJECT_FORMAT_ELF + +#define CPP_PREDEFINES "-Darm_oabi -Dthumb -Dthumbelf -D__thumb -Acpu(arm) -Amachine(arm)" + +#define ASM_SPEC "-moabi -marm7tdmi %{mthumb-interwork:-mthumb-interwork} %{mbig-endian:-EB}" + +#include "arm/thumb.h" + +/* Run-time Target Specification. */ +#undef TARGET_VERSION +#define TARGET_VERSION fputs (" (Thumb/elf)", stderr) + +#define MULTILIB_DEFAULTS { "mlittle-endian" } + +/* Setting this to 32 produces more efficient code, but the value set in previous + versions of this toolchain was 8, which produces more compact structures. The + command line option -mstructure_size_boundary=<n> can be used to change this + value. */ +#undef STRUCTURE_SIZE_BOUNDARY +#define STRUCTURE_SIZE_BOUNDARY arm_structure_size_boundary + +extern int arm_structure_size_boundary; + +/* Debug */ +#define DWARF_DEBUGGING_INFO +#define DWARF2_DEBUGGING_INFO +#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG + + +/* Note - it is important that these definitions match those in semi.h for the ARM port. */ +#undef LOCAL_LABEL_PREFIX +#define LOCAL_LABEL_PREFIX "." + + +/* A C statement to output assembler commands which will identify the + object file as having been compiled with GNU CC (or another GNU + compiler). */ +#define ASM_IDENTIFY_GCC(STREAM) \ + fprintf (STREAM, "%sgcc2_compiled.:\n", LOCAL_LABEL_PREFIX ) + +#undef ASM_FILE_START +#define ASM_FILE_START(STREAM) \ +do { \ + extern char *version_string; \ + fprintf ((STREAM), "%s Generated by gcc %s for Thumb/elf\n", \ + ASM_COMMENT_START, version_string); \ + fprintf ((STREAM), ASM_APP_OFF); \ +} while (0) + +/* A C statement to output something to the assembler file to switch to section + NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or + NULL_TREE. Some target formats do not support arbitrary sections. Do not + define this macro in such cases. */ +#define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME, RELOC) \ +do { \ + if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \ + fprintf (STREAM, "\t.section %s,\"ax\",@progbits\n", (NAME)); \ + else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \ + fprintf (STREAM, "\t.section %s,\"a\"\n", (NAME)); \ + else \ + fprintf (STREAM, "\t.section %s,\"aw\"\n", (NAME)); \ +} while (0) + +/* Support the ctors/dtors and other sections. */ + +#undef INIT_SECTION_ASM_OP + +/* Define this macro if jump tables (for `tablejump' insns) should be + output in the text section, along with the assembler instructions. + Otherwise, the readonly data section is used. */ +#define JUMP_TABLES_IN_TEXT_SECTION 1 + +#undef READONLY_DATA_SECTION +#define READONLY_DATA_SECTION rdata_section +#undef RDATA_SECTION_ASM_OP +#define RDATA_SECTION_ASM_OP "\t.section .rodata" + +#undef CTORS_SECTION_ASM_OP +#define CTORS_SECTION_ASM_OP "\t.section .ctors,\"aw\"" +#undef DTORS_SECTION_ASM_OP +#define DTORS_SECTION_ASM_OP "\t.section .dtors,\"aw\"" + +#define USER_LABEL_PREFIX "" + +/* Don't know how to order these. UNALIGNED_WORD_ASM_OP is in + dwarf2.out. */ +#define UNALIGNED_WORD_ASM_OP ".4byte" + +#define ASM_OUTPUT_DWARF2_ADDR_CONST(FILE,ADDR) \ + if (((ADDR)[0] == '.') && ((ADDR)[1] == 'L')) \ + fprintf ((FILE), "\t%s\t%s", UNALIGNED_WORD_ASM_OP, (ADDR)); \ + else \ + fprintf ((FILE), "\t%s\t%s", \ + UNALIGNED_WORD_ASM_OP, (ADDR)) + +#define ASM_OUTPUT_DWARF_ADDR_CONST(FILE,RTX) \ +do { \ + fprintf ((FILE), "\t%s\t", UNALIGNED_WORD_ASM_OP); \ + output_addr_const ((FILE), (RTX)); \ + fputc ('\n', (FILE)); \ +} 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 list of other sections which the compiler might be "in" at any + given time. */ +#undef EXTRA_SECTIONS +#define EXTRA_SECTIONS SUBTARGET_EXTRA_SECTIONS in_rdata, in_ctors, in_dtors + +#define SUBTARGET_EXTRA_SECTIONS + +/* A list of extra section function definitions. */ + +#undef EXTRA_SECTION_FUNCTIONS +#define EXTRA_SECTION_FUNCTIONS \ + RDATA_SECTION_FUNCTION \ + CTORS_SECTION_FUNCTION \ + DTORS_SECTION_FUNCTION \ + SUBTARGET_EXTRA_SECTION_FUNCTIONS + +#define SUBTARGET_EXTRA_SECTION_FUNCTIONS + +#define RDATA_SECTION_FUNCTION \ +void \ +rdata_section () \ +{ \ + if (in_section != in_rdata) \ + { \ + fprintf (asm_out_file, "%s\n", RDATA_SECTION_ASM_OP); \ + in_section = in_rdata; \ + } \ +} + +#define CTOR_LIST_BEGIN \ +asm (CTORS_SECTION_ASM_OP); \ +func_ptr __CTOR_LIST__[1] = { (func_ptr) (-1) } + +#define CTOR_LIST_END \ +asm (CTORS_SECTION_ASM_OP); \ +func_ptr __CTOR_END__[1] = { (func_ptr) 0 }; + +#define DTOR_LIST_BEGIN \ +asm (DTORS_SECTION_ASM_OP); \ +func_ptr __DTOR_LIST__[1] = { (func_ptr) (-1) } + +#define DTOR_LIST_END \ +asm (DTORS_SECTION_ASM_OP); \ +func_ptr __DTOR_END__[1] = { (func_ptr) 0 }; + +#define CTORS_SECTION_FUNCTION \ +void \ +ctors_section () \ +{ \ + if (in_section != in_ctors) \ + { \ + fprintf (asm_out_file, "%s\n", CTORS_SECTION_ASM_OP); \ + in_section = in_ctors; \ + } \ +} + +#define DTORS_SECTION_FUNCTION \ +void \ +dtors_section () \ +{ \ + if (in_section != in_dtors) \ + { \ + fprintf (asm_out_file, "%s\n", DTORS_SECTION_ASM_OP); \ + in_section = in_dtors; \ + } \ +} + +/* Support the ctors/dtors sections for g++. */ + +#define INT_ASM_OP ".word" + +#define INVOKE__main + +#undef STARTFILE_SPEC +#define STARTFILE_SPEC "crtbegin%O%s crt0%O%s" + +#undef ENDFILE_SPEC +#define ENDFILE_SPEC "crtend%O%s" + +/* A C statement (sans semicolon) to output an element in the table of + global constructors. */ +#undef ASM_OUTPUT_CONSTRUCTOR +#define ASM_OUTPUT_CONSTRUCTOR(STREAM,NAME) \ +do { \ + ctors_section (); \ + fprintf (STREAM, "\t%s\t ", INT_ASM_OP); \ + assemble_name (STREAM, NAME); \ + fprintf (STREAM, "\n"); \ +} while (0) + +/* A C statement (sans semicolon) to output an element in the table of + global destructors. */ +#undef ASM_OUTPUT_DESTRUCTOR +#define ASM_OUTPUT_DESTRUCTOR(STREAM,NAME) \ +do { \ + dtors_section (); \ + fprintf (STREAM, "\t%s\t ", INT_ASM_OP); \ + assemble_name (STREAM, NAME); \ + fprintf (STREAM, "\n"); \ +} while (0) + +/* The ARM development system has atexit and doesn't have _exit, + so define this for now. */ +#define HAVE_ATEXIT + +/* The ARM development system defines __main. */ +#define NAME__MAIN "__gccmain" +#define SYMBOL__MAIN __gccmain |