9e9b9afe4c
* config.gcc (*-*-linux*): Don't define HAVE_ATEXIT or BSTRING. * tm.texi (EXIT_BODY): Update documentation. * config/freebsd.h, config/netware.h, config/arm/coff.h, config/arm/conix-elf.h, config/arm/unknown-elf.h, config/d30v/d30v.h, config/mcore/mcore.h, config/pj/pj.h, sparc/sp86x-aout.h: Remove definitions of HAVE_ATEXIT (some commented out) and associated comments. f: * com.c [VMS]: Remove definition of BSTRING. From-SVN: r38370
220 lines
6.9 KiB
C
220 lines
6.9 KiB
C
/* Definitions for non-Linux based ARM systems using ELF
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Copyright (C) 1998, 1999, 2000 Free Software Foundation, Inc.
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Contributed by Catherine Moore <clm@cygnus.com>
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This file is part of GNU CC.
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GNU CC 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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the Free Software Foundation; either version 2, or (at your option)
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any later version.
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GNU CC 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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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; see the file COPYING. If not, write to
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the Free Software Foundation, 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* Run-time Target Specification. */
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#ifndef TARGET_VERSION
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#define TARGET_VERSION fputs (" (ARM/ELF non-Linux)", stderr);
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#endif
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/* Default to using APCS-32 and software floating point. */
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#ifndef TARGET_DEFAULT
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#define TARGET_DEFAULT (ARM_FLAG_SOFT_FLOAT | ARM_FLAG_APCS_32 | ARM_FLAG_APCS_FRAME)
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#endif
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/* Now we define the strings used to build the spec file. */
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#define STARTFILE_SPEC "crtbegin%O%s crt0%O%s"
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#define ENDFILE_SPEC "crtend%O%s"
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#define USER_LABEL_PREFIX ""
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#define LOCAL_LABEL_PREFIX "."
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#define TEXT_SECTION " .text"
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#define INVOKE__main
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/* Debugging */
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#define DWARF_DEBUGGING_INFO
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#define DWARF2_DEBUGGING_INFO
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#define PREFERRED_DEBUGGING_TYPE DWARF2_DEBUG
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/* Support for Constructors and Destrcutors . */
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#define READONLY_DATA_SECTION rdata_section
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/* A list of other sections which the compiler might be "in" at any
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given time. */
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#define SUBTARGET_EXTRA_SECTIONS in_rdata,
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/* A list of extra section function definitions. */
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#define SUBTARGET_EXTRA_SECTION_FUNCTIONS RDATA_SECTION_FUNCTION
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#define RDATA_SECTION_ASM_OP "\t.section .rodata"
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#define RDATA_SECTION_FUNCTION \
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void \
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rdata_section () \
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{ \
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if (in_section != in_rdata) \
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{ \
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fprintf (asm_out_file, "%s\n", RDATA_SECTION_ASM_OP); \
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in_section = in_rdata; \
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} \
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}
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#define CTOR_LIST_BEGIN \
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asm (CTORS_SECTION_ASM_OP); \
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func_ptr __CTOR_LIST__[1] = { (func_ptr) (-1) }
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#define CTOR_LIST_END \
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asm (CTORS_SECTION_ASM_OP); \
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func_ptr __CTOR_END__[1] = { (func_ptr) 0 };
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#define DTOR_LIST_BEGIN \
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asm (DTORS_SECTION_ASM_OP); \
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func_ptr __DTOR_LIST__[1] = { (func_ptr) (-1) }
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#define DTOR_LIST_END \
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asm (DTORS_SECTION_ASM_OP); \
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func_ptr __DTOR_END__[1] = { (func_ptr) 0 };
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/* A C statement to output something to the assembler file to switch to section
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NAME for object DECL which is either a FUNCTION_DECL, a VAR_DECL or
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NULL_TREE. Some target formats do not support arbitrary sections. Do not
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define this macro in such cases. */
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#define ASM_OUTPUT_SECTION_NAME(STREAM, DECL, NAME, RELOC) \
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do \
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{ \
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if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \
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fprintf (STREAM, "\t.section %s,\"ax\",@progbits\n", (NAME)); \
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else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \
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fprintf (STREAM, "\t.section %s,\"a\"\n", (NAME)); \
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else if (! strncmp (NAME, ".bss", 4)) \
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fprintf (STREAM, "\t.section %s,\"aw\",@nobits\n", (NAME)); \
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else \
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fprintf (STREAM, "\t.section %s,\"aw\"\n", (NAME)); \
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} \
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while (0)
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/* Don't know how to order these. UNALIGNED_WORD_ASM_OP is in
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dwarf2.out. */
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#define UNALIGNED_WORD_ASM_OP "\t.4byte\t"
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#define ASM_OUTPUT_DWARF2_ADDR_CONST(FILE,ADDR) \
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fprintf ((FILE), "%s%s", UNALIGNED_WORD_ASM_OP, ADDR)
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#define ASM_OUTPUT_DWARF_ADDR_CONST(FILE,RTX) \
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do \
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{ \
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fprintf ((FILE), "%s", UNALIGNED_WORD_ASM_OP); \
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output_addr_const ((FILE), (RTX)); \
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fputc ('\n', (FILE)); \
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} \
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while (0)
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/* The ARM development system defines __main. */
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#define NAME__MAIN "__gccmain"
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#define SYMBOL__MAIN __gccmain
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/* Return a non-zero value if DECL has a section attribute. */
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#define IN_NAMED_SECTION(DECL) \
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((TREE_CODE (DECL) == FUNCTION_DECL || TREE_CODE (DECL) == VAR_DECL) \
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&& DECL_SECTION_NAME (DECL) != NULL_TREE)
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#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1)
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#define UNIQUE_SECTION_P(DECL) (DECL_ONE_ONLY (DECL))
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#define UNIQUE_SECTION(DECL, RELOC) \
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do \
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{ \
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int len; \
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int sec; \
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const char * name; \
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char * string; \
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char * prefix; \
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static char * prefixes[4][2] = \
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{ \
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{ ".text.", ".gnu.linkonce.t." }, \
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{ ".rodata.", ".gnu.linkonce.r." }, \
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{ ".data.", ".gnu.linkonce.d." }, \
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{ ".bss.", ".gnu.linkonce.b." } \
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}; \
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\
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if (TREE_CODE (DECL) == FUNCTION_DECL) \
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sec = 0; \
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else if (DECL_READONLY_SECTION (DECL, RELOC)) \
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sec = 1; \
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else if (DECL_INITIAL (DECL) == NULL_TREE) \
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sec = 3; \
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else \
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sec = 2; \
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\
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prefix = prefixes[sec][DECL_ONE_ONLY(DECL)]; \
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name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \
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\
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/* Strip off any encoding in name. */ \
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STRIP_NAME_ENCODING (name, name); \
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\
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len = strlen (name) + strlen (prefix); \
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string = alloca (len + 1); \
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\
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sprintf (string, "%s%s", prefix, name); \
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\
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DECL_SECTION_NAME (DECL) = build_string (len, string); \
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} \
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while (0)
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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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do \
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{ \
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if (IN_NAMED_SECTION (DECL)) \
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named_section (DECL, NULL, 0); \
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else \
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bss_section (); \
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\
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ASM_GLOBALIZE_LABEL (FILE, NAME); \
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\
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ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \
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\
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last_assemble_variable_decl = DECL; \
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ASM_DECLARE_OBJECT_NAME (FILE, NAME, DECL); \
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ASM_OUTPUT_SKIP (FILE, SIZE ? SIZE : 1); \
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} \
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while (0)
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#undef ASM_OUTPUT_ALIGNED_DECL_LOCAL
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#define ASM_OUTPUT_ALIGNED_DECL_LOCAL(FILE, DECL, NAME, SIZE, ALIGN) \
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do \
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{ \
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if (IN_NAMED_SECTION (DECL)) \
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named_section (DECL, NULL, 0); \
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else \
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bss_section (); \
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\
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ASM_OUTPUT_ALIGN (FILE, floor_log2 (ALIGN / BITS_PER_UNIT)); \
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ASM_OUTPUT_LABEL (FILE, NAME); \
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fprintf (FILE, "\t.space\t%d\n", SIZE); \
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} \
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while (0)
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#ifndef CPP_APCS_PC_DEFAULT_SPEC
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#define CPP_APCS_PC_DEFAULT_SPEC "-D__APCS_32__"
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#endif
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#ifndef SUBTARGET_CPU_DEFAULT
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#define SUBTARGET_CPU_DEFAULT TARGET_CPU_arm7tdmi
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#endif
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/* Now get the routine arm-elf definitions. */
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#include "elf.h"
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