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Diffstat (limited to 'gcc/config/i386/svr3gas.h')
| -rw-r--r-- | gcc/config/i386/svr3gas.h | 293 |
1 files changed, 0 insertions, 293 deletions
diff --git a/gcc/config/i386/svr3gas.h b/gcc/config/i386/svr3gas.h deleted file mode 100644 index a288b84e524..00000000000 --- a/gcc/config/i386/svr3gas.h +++ /dev/null @@ -1,293 +0,0 @@ -/* Definitions for Intel 386 running system V, using gas. - Copyright (C) 1992, 1996 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. */ - -#include "i386/gas.h" - -/* Add stuff that normally comes from i386/sysv3.h */ - -/* longjmp may fail to restore the registers if called from the same - function that called setjmp. To compensate, the compiler avoids - putting variables in registers in functions that use both setjmp - and longjmp. */ - -#define NON_SAVING_SETJMP \ - (current_function_calls_setjmp && current_function_calls_longjmp) - -/* longjmp may fail to restore the stack pointer if the saved frame - pointer is the same as the caller's frame pointer. Requiring a frame - pointer in any function that calls setjmp or longjmp avoids this - problem, unless setjmp and longjmp are called from the same function. - Since a frame pointer will be required in such a function, it is OK - that the stack pointer is not restored. */ - -#undef FRAME_POINTER_REQUIRED -#define FRAME_POINTER_REQUIRED \ - (current_function_calls_setjmp || current_function_calls_longjmp) - -/* Modify ASM_OUTPUT_LOCAL slightly to test -msvr3-shlib, adapted to gas */ -#undef ASM_OUTPUT_LOCAL -#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ - do { \ - int align = exact_log2 (ROUNDED); \ - if (align > 2) align = 2; \ - if (TARGET_SVR3_SHLIB) \ - { \ - data_section (); \ - ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align); \ - ASM_OUTPUT_LABEL ((FILE), (NAME)); \ - fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED)); \ - } \ - else \ - { \ - fputs (".lcomm ", (FILE)); \ - assemble_name ((FILE), (NAME)); \ - fprintf ((FILE), ",%u\n", (ROUNDED)); \ - } \ - } while (0) - -/* Add stuff that normally comes from i386/sysv3.h via svr3.h */ - -/* Define the actual types of some ANSI-mandated types. These - definitions should work for most SVR3 systems. */ - -#undef SIZE_TYPE -#define SIZE_TYPE "unsigned int" - -#undef PTRDIFF_TYPE -#define PTRDIFF_TYPE "int" - -#undef WCHAR_TYPE -#define WCHAR_TYPE "long int" - -#undef WCHAR_TYPE_SIZE -#define WCHAR_TYPE_SIZE BITS_PER_WORD - -/* ??? This stuff is copied from config/svr3.h. In the future, - this file should be rewritten to include config/svr3.h - and override what isn't right. */ - -/* Support const sections and the ctors and dtors sections for g++. - Note that there appears to be two different ways to support const - sections at the moment. You can either #define the symbol - READONLY_DATA_SECTION (giving it some code which switches to the - readonly data section) or else you can #define the symbols - EXTRA_SECTIONS, EXTRA_SECTION_FUNCTIONS, SELECT_SECTION, and - SELECT_RTX_SECTION. We do both here just to be on the safe side. - However, use of the const section is turned off by default - unless the specific tm.h file turns it on by defining - USE_CONST_SECTION as 1. */ - -/* Define a few machine-specific details of the implementation of - constructors. - - The __CTORS_LIST__ goes in the .init section. Define CTOR_LIST_BEGIN - and CTOR_LIST_END to contribute to the .init section an instruction to - push a word containing 0 (or some equivalent of that). - - Define ASM_OUTPUT_CONSTRUCTOR to push the address of the constructor. */ - -#define USE_CONST_SECTION 0 - -#define INIT_SECTION_ASM_OP ".section\t.init" -#define FINI_SECTION_ASM_OP ".section .fini,\"x\"" -#define CONST_SECTION_ASM_OP ".section\t.rodata, \"x\"" -#define CTORS_SECTION_ASM_OP INIT_SECTION_ASM_OP -#define DTORS_SECTION_ASM_OP FINI_SECTION_ASM_OP - -/* CTOR_LIST_BEGIN and CTOR_LIST_END are machine-dependent - because they push on the stack. */ - -#ifdef STACK_GROWS_DOWNWARD - -/* Constructor list on stack is in reverse order. Go to the end of the - list and go backwards to call constructors in the right order. */ -#define DO_GLOBAL_CTORS_BODY \ -do { \ - func_ptr *p, *beg = alloca (0); \ - for (p = beg; *p; p++) \ - ; \ - while (p != beg) \ - (*--p) (); \ -} while (0) - -#else - -/* Constructor list on stack is in correct order. Just call them. */ -#define DO_GLOBAL_CTORS_BODY \ -do { \ - func_ptr *p, *beg = alloca (0); \ - for (p = beg; *p; ) \ - (*p++) (); \ -} while (0) - -#endif /* STACK_GROWS_DOWNWARD */ - -/* Add extra sections .rodata, .init and .fini. */ - -#undef EXTRA_SECTIONS -#define EXTRA_SECTIONS in_const, in_init, in_fini - -#undef EXTRA_SECTION_FUNCTIONS -#define EXTRA_SECTION_FUNCTIONS \ - CONST_SECTION_FUNCTION \ - INIT_SECTION_FUNCTION \ - FINI_SECTION_FUNCTION - -#define INIT_SECTION_FUNCTION \ -void \ -init_section () \ -{ \ - if (in_section != in_init) \ - { \ - fprintf (asm_out_file, "\t%s\n", INIT_SECTION_ASM_OP); \ - in_section = in_init; \ - } \ -} - -#define FINI_SECTION_FUNCTION \ -void \ -fini_section () \ -{ \ - if (in_section != in_fini) \ - { \ - fprintf (asm_out_file, "\t%s\n", FINI_SECTION_ASM_OP); \ - in_section = in_fini; \ - } \ -} - -#define READONLY_DATA_SECTION() const_section () - -#define CONST_SECTION_FUNCTION \ -void \ -const_section () \ -{ \ - extern void text_section(); \ - if (!USE_CONST_SECTION) \ - text_section(); \ - else if (in_section != in_const) \ - { \ - fprintf (asm_out_file, "%s\n", CONST_SECTION_ASM_OP); \ - in_section = in_const; \ - } \ -} - -/* The ctors and dtors sections are not normally put into use - by EXTRA_SECTIONS and EXTRA_SECTION_FUNCTIONS as defined in svr3.h, - but it can't hurt to define these macros for whatever systems use them. */ -#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; \ - } \ -} - -/* This is machine-dependent - because it needs to push something on the stack. */ -#undef ASM_OUTPUT_CONSTRUCTOR - -/* A C statement (sans semicolon) to output an element in the table of - global destructors. */ -#define ASM_OUTPUT_DESTRUCTOR(FILE,NAME) \ - do { \ - fini_section (); \ - fprintf (FILE, "%s\t ", ASM_LONG); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, "\n"); \ - } while (0) - -/* A C statement or statements to switch to the appropriate - section for output of DECL. DECL is either a `VAR_DECL' node - or a constant of some sort. RELOC indicates whether forming - the initial value of DECL requires link-time relocations. */ - -#define SELECT_SECTION(DECL,RELOC) \ -{ \ - if (TREE_CODE (DECL) == STRING_CST) \ - { \ - if (! flag_writable_strings) \ - const_section (); \ - else \ - data_section (); \ - } \ - else if (TREE_CODE (DECL) == VAR_DECL) \ - { \ - if ((0 && RELOC) /* should be (flag_pic && RELOC) */ \ - || !TREE_READONLY (DECL) || TREE_SIDE_EFFECTS (DECL) \ - || !DECL_INITIAL (DECL) \ - || (DECL_INITIAL (DECL) != error_mark_node \ - && !TREE_CONSTANT (DECL_INITIAL (DECL)))) \ - data_section (); \ - else \ - const_section (); \ - } \ - else \ - const_section (); \ -} - -/* A C statement or statements to switch to the appropriate - section for output of RTX in mode MODE. RTX is some kind - of constant in RTL. The argument MODE is redundant except - in the case of a `const_int' rtx. Currently, these always - go into the const section. */ - -#define SELECT_RTX_SECTION(MODE,RTX) const_section() - -/* This is copied from i386/sysv3.h. */ - -/* Define a few machine-specific details of the implementation of - constructors. - - The __CTORS_LIST__ goes in the .init section. Define CTOR_LIST_BEGIN - and CTOR_LIST_END to contribute to the .init section an instruction to - push a word containing 0 (or some equivalent of that). - - ASM_OUTPUT_CONSTRUCTOR should be defined to push the address of the - constructor. */ - -#undef INIT_SECTION_ASM_OP -#define INIT_SECTION_ASM_OP ".section .init,\"x\"" - -#define CTOR_LIST_BEGIN \ - asm (INIT_SECTION_ASM_OP); \ - asm ("pushl $0") -#define CTOR_LIST_END CTOR_LIST_BEGIN - -#define ASM_OUTPUT_CONSTRUCTOR(FILE,NAME) \ - do { \ - init_section (); \ - fprintf (FILE, "\tpushl $"); \ - assemble_name (FILE, NAME); \ - fprintf (FILE, "\n"); \ - } while (0) |