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Diffstat (limited to 'gcc/config/mips/elf64.h')
| -rwxr-xr-x | gcc/config/mips/elf64.h | 354 |
1 files changed, 0 insertions, 354 deletions
diff --git a/gcc/config/mips/elf64.h b/gcc/config/mips/elf64.h deleted file mode 100755 index 4c72334..0000000 --- a/gcc/config/mips/elf64.h +++ /dev/null @@ -1,354 +0,0 @@ -/* Definitions of target machine for GNU compiler. MIPS R4000 version with - GOFAST floating point library. - Copyright (C) 1994, 1995, 1996, 1997, 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 - -/* Default to -mips3. */ -#define TARGET_DEFAULT MASK_FLOAT64|MASK_64BIT -#define MIPS_ISA_DEFAULT 3 - -/* Until we figure out what MIPS ELF targets normally use, just do - stabs in ELF. */ -#ifndef PREFERRED_DEBUGGING_TYPE -#define PREFERRED_DEBUGGING_TYPE DBX_DEBUG -#endif - -/* US Software GOFAST library support. */ -#include "gofast.h" -#define INIT_SUBTARGET_OPTABS INIT_GOFAST_OPTABS - -#include "mips/mips.h" - -/* This must be done after mips.h, because mips.h defines - TARGET_ENDIAN_DEFAULT. */ -#undef MULTILIB_DEFAULTS -#if TARGET_ENDIAN_DEFAULT == 0 -#define MULTILIB_DEFAULTS { "EL", "mips3" } -#else -#define MULTILIB_DEFAULTS { "EB", "mips3" } -#endif - -#undef CPP_PREDEFINES -#define CPP_PREDEFINES "-Dmips -DMIPSEB -DR4000 -D_mips -D_MIPSEB -D_R4000" - -/* I would rather put this in CPP_PREDEFINES, but the gcc driver - doesn't handle -U options in CPP_PREDEFINES. */ -#undef SUBTARGET_CPP_SPEC -#define SUBTARGET_CPP_SPEC "\ -%{!mips1:%{!mips2:-U__mips -D__mips=3 %{!mgp32: -D__mips64}}}" - -/* Use memcpy, et. al., rather than bcopy. */ -#define TARGET_MEM_FUNCTIONS - -/* Biggest alignment supported by the object file format of this - machine. Use this macro to limit the alignment which can be - specified using the `__attribute__ ((aligned (N)))' construct. If - not defined, the default value is `BIGGEST_ALIGNMENT'. */ - -#define MAX_OFILE_ALIGNMENT (32768*8) - -/* We need to use .esize and .etype instead of .size and .type to - avoid conflicting with ELF directives. */ -#undef PUT_SDB_SIZE -#define PUT_SDB_SIZE(a) \ -do { \ - extern FILE *asm_out_text_file; \ - fprintf (asm_out_text_file, "\t.esize\t%d;", (a)); \ -} while (0) - -#undef PUT_SDB_TYPE -#define PUT_SDB_TYPE(a) \ -do { \ - extern FILE *asm_out_text_file; \ - fprintf (asm_out_text_file, "\t.etype\t0x%x;", (a)); \ -} 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(F, DECL, NAME, RELOC) \ -do { \ - extern FILE *asm_out_text_file; \ - if ((DECL) && TREE_CODE (DECL) == FUNCTION_DECL) \ - fprintf (asm_out_text_file, "\t.section %s,\"ax\",@progbits\n", (NAME)); \ - else if ((DECL) && DECL_READONLY_SECTION (DECL, RELOC)) \ - fprintf (F, "\t.section %s,\"a\",@progbits\n", (NAME)); \ - else \ - fprintf (F, "\t.section %s,\"aw\",@progbits\n", (NAME)); \ -} while (0) - -/* The following macro defines the format used to output the second - operand of the .type assembler directive. Different svr4 assemblers - expect various different forms for this operand. The one given here - is just a default. You may need to override it in your machine- - specific tm.h file (depending upon the particulars of your assembler). */ - -#define TYPE_OPERAND_FMT "@%s" - -/* Define the strings used for the special svr4 .type and .size directives. - 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 - different pseudo-op names for these, they may be overridden in the - file which includes this one. */ - -#undef TYPE_ASM_OP -#undef SIZE_ASM_OP -#define TYPE_ASM_OP ".type" -#define SIZE_ASM_OP ".size" - -/* These macros generate the special .type and .size directives which - are used to set the corresponding fields of the linker symbol table - entries in an ELF object file under SVR4. These macros also output - the starting labels for the relevant functions/objects. */ - -/* Write the extra assembler code needed to declare an object properly. */ - -#undef ASM_DECLARE_OBJECT_NAME -#define ASM_DECLARE_OBJECT_NAME(FILE, NAME, DECL) \ - do { \ - fprintf (FILE, "\t%s\t ", TYPE_ASM_OP); \ - assemble_name (FILE, NAME); \ - putc (',', FILE); \ - fprintf (FILE, TYPE_OPERAND_FMT, "object"); \ - putc ('\n', FILE); \ - size_directive_output = 0; \ - if (!flag_inhibit_size_directive && DECL_SIZE (DECL)) \ - { \ - size_directive_output = 1; \ - fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \ - } \ - mips_declare_object (FILE, NAME, "", ":\n", 0); \ - } while (0) - -/* Output the size directive for a decl in rest_of_decl_compilation - 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 - size_directive_output was set - by ASM_DECLARE_OBJECT_NAME when it was run for the same decl. */ - -#undef ASM_FINISH_DECLARE_OBJECT -#define ASM_FINISH_DECLARE_OBJECT(FILE, DECL, TOP_LEVEL, AT_END) \ -do { \ - char *name = XSTR (XEXP (DECL_RTL (DECL), 0), 0); \ - if (!flag_inhibit_size_directive && DECL_SIZE (DECL) \ - && ! AT_END && TOP_LEVEL \ - && DECL_INITIAL (DECL) == error_mark_node \ - && !size_directive_output) \ - { \ - size_directive_output = 1; \ - fprintf (FILE, "\t%s\t ", SIZE_ASM_OP); \ - assemble_name (FILE, name); \ - fprintf (FILE, ",%d\n", int_size_in_bytes (TREE_TYPE (DECL))); \ - } \ - } while (0) - -#define ASM_OUTPUT_DEF(FILE,LABEL1,LABEL2) \ - do { fputc ( '\t', FILE); \ - assemble_name (FILE, LABEL1); \ - fputs ( " = ", FILE); \ - assemble_name (FILE, LABEL2); \ - fputc ( '\n', FILE); \ - } while (0) - -/* Note about .weak vs. .weakext - The mips native assemblers support .weakext, but not .weak. - mips-elf gas supports .weak, but not .weakext. - mips-elf gas has been changed to support both .weak and .weakext, - but until that support is generally available, the 'if' below - should serve. */ - -#define ASM_WEAKEN_LABEL(FILE,NAME) ASM_OUTPUT_WEAK_ALIAS(FILE,NAME,0) -#define ASM_OUTPUT_WEAK_ALIAS(FILE,NAME,VALUE) \ - do { \ - if (TARGET_GAS) \ - fputs ("\t.weak\t", FILE); \ - else \ - fputs ("\t.weakext\t", FILE); \ - assemble_name (FILE, NAME); \ - if (VALUE) \ - { \ - fputc (' ', FILE); \ - assemble_name (FILE, VALUE); \ - } \ - fputc ('\n', FILE); \ - } while (0) - -#define MAKE_DECL_ONE_ONLY(DECL) (DECL_WEAK (DECL) = 1) -#define UNIQUE_SECTION_P(DECL) (DECL_ONE_ONLY (DECL)) -#define UNIQUE_SECTION(DECL,RELOC) \ -do { \ - int len, size, sec; \ - char *name, *string, *prefix; \ - static char *prefixes[4][2] = { \ - { ".text.", ".gnu.linkonce.t." }, \ - { ".rodata.", ".gnu.linkonce.r." }, \ - { ".data.", ".gnu.linkonce.d." }, \ - { ".sdata.", ".gnu.linkonce.s." } \ - }; \ - \ - name = IDENTIFIER_POINTER (DECL_ASSEMBLER_NAME (DECL)); \ - size = int_size_in_bytes (TREE_TYPE (decl)); \ - \ - /* Determine the base section we are interested in: \ - 0=text, 1=rodata, 2=data, 3=sdata. */ \ - if (TREE_CODE (DECL) == FUNCTION_DECL) \ - sec = 0; \ - else if ((TARGET_EMBEDDED_PIC || TARGET_MIPS16) \ - && TREE_CODE (decl) == STRING_CST \ - && !flag_writable_strings) \ - { \ - /* For embedded position independent code, put constant strings \ - in the text section, because the data section is limited to \ - 64K in size. For mips16 code, put strings in the text \ - section so that a PC relative load instruction can be used to \ - get their address. */ \ - sec = 0; \ - } \ - else if (TARGET_EMBEDDED_DATA) \ - { \ - /* For embedded applications, always put an object in read-only data \ - if possible, in order to reduce RAM usage. */ \ - \ - if (DECL_READONLY_SECTION (DECL, RELOC)) \ - sec = 1; \ - else if (size > 0 && size <= mips_section_threshold) \ - sec = 3; \ - else \ - sec = 2; \ - } \ - else \ - { \ - /* For hosted applications, always put an object in small data if \ - possible, as this gives the best performance. */ \ - \ - if (size > 0 && size <= mips_section_threshold) \ - sec = 3; \ - else if (DECL_READONLY_SECTION (DECL, RELOC)) \ - sec = 1; \ - else \ - sec = 2; \ - } \ - \ - prefix = prefixes[sec][DECL_ONE_ONLY (DECL)]; \ - len = strlen (name) + strlen (prefix); \ - string = alloca (len + 1); \ - sprintf (string, "%s%s", prefix, name); \ - \ - DECL_SECTION_NAME (DECL) = build_string (len, string); \ -} while (0) - -/* Support the ctors/dtors and other sections. */ - -/* 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.) */ - -#define CTORS_SECTION_ASM_OP "\t.section\t.ctors,\"aw\"" -#define DTORS_SECTION_ASM_OP "\t.section\t.dtors,\"aw\"" - -/* A list of other sections which the compiler might be "in" at any - given time. */ -#undef EXTRA_SECTIONS -#define EXTRA_SECTIONS in_sdata, in_rdata, in_ctors, in_dtors - -#define INVOKE__main -#define NAME__MAIN "__gccmain" -#define SYMBOL__MAIN __gccmain - -#undef EXTRA_SECTION_FUNCTIONS -#define EXTRA_SECTION_FUNCTIONS \ - SECTION_FUNCTION_TEMPLATE(sdata_section, in_sdata, SDATA_SECTION_ASM_OP) \ - SECTION_FUNCTION_TEMPLATE(rdata_section, in_rdata, RDATA_SECTION_ASM_OP) \ - SECTION_FUNCTION_TEMPLATE(ctors_section, in_ctors, CTORS_SECTION_ASM_OP) \ - SECTION_FUNCTION_TEMPLATE(dtors_section, in_dtors, DTORS_SECTION_ASM_OP) - -#define SECTION_FUNCTION_TEMPLATE(FN, ENUM, OP) \ -void FN () \ -{ \ - if (in_section != ENUM) \ - { \ - fprintf (asm_out_file, "%s\n", OP); \ - in_section = ENUM; \ - } \ -} - - -/* A C statement (sans semicolon) to output an element in the table of - global constructors. */ -#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ - do { \ - ctors_section (); \ - fprintf (FILE, "\t%s\t", TARGET_LONG64 ? ".dword" : ".word"); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, "\n"); \ - } while (0) - - -/* A C statement (sans semicolon) to output an element in the table of - global destructors. */ -#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ - do { \ - dtors_section (); \ - fprintf (FILE, "\t%s\t", TARGET_LONG64 ? ".dword" : ".word"); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, "\n"); \ - } while (0) - -#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 }; - -/* Don't set the target flags, this is done by the linker script */ -#undef LIB_SPEC -#define LIB_SPEC "" - -#undef STARTFILE_SPEC -#define STARTFILE_SPEC "crtbegin%O%s crt0%O%s" - -#undef ENDFILE_SPEC -#define ENDFILE_SPEC "crtend%O%s" |