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Diffstat (limited to 'gcc/config/arm/tcoff.h')
| -rw-r--r-- | gcc/config/arm/tcoff.h | 192 |
1 files changed, 192 insertions, 0 deletions
diff --git a/gcc/config/arm/tcoff.h b/gcc/config/arm/tcoff.h new file mode 100644 index 0000000..5fabe5d --- /dev/null +++ b/gcc/config/arm/tcoff.h @@ -0,0 +1,192 @@ +/* Definitions of target machine for GNU compiler, + for Thumb with COFF obj format. + Copyright (C) 1995, 1996 Free Software Foundation, Inc. + Derived from arm/coff.h originally by Doug Evans (dje@cygnus.com). + +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. */ + +#include "arm/thumb.h" + +/* Run-time Target Specification. */ +#undef TARGET_VERSION +#define TARGET_VERSION fputs (" (Thumb/coff)", 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; + +/* This is COFF, but prefer stabs. */ +#define SDB_DEBUGGING_INFO + +#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG + +#include "dbxcoff.h" + +/* Note - it is important that these definitions match those in semi.h for the ARM port. */ +#undef LOCAL_LABEL_PREFIX +#define LOCAL_LABEL_PREFIX "." + +#undef USER_LABEL_PREFIX +#define USER_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/coff\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,\"x\"\n", (NAME)); \ + else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \ + fprintf (STREAM, "\t.section %s,\"\"\n", (NAME)); \ + else \ + fprintf (STREAM, "\t.section %s,\"w\"\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 + +#undef READONLY_DATA_SECTION +#define READONLY_DATA_SECTION rdata_section +#undef RDATA_SECTION_ASM_OP +#define RDATA_SECTION_ASM_OP "\t.section .rdata" + +#undef CTORS_SECTION_ASM_OP +#define CTORS_SECTION_ASM_OP "\t.section .ctors,\"x\"" +#undef DTORS_SECTION_ASM_OP +#define DTORS_SECTION_ASM_OP "\t.section .dtors,\"x\"" + +/* 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 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" + +/* 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) + +/* __CTOR_LIST__ and __DTOR_LIST__ must be defined by the linker script. */ +#define CTOR_LISTS_DEFINED_EXTERNALLY + +#undef DO_GLOBAL_CTORS_BODY +#undef DO_GLOBAL_DTORS_BODY + +/* 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 |