X-Git-Url: http://git.sourceforge.jp/view?a=blobdiff_plain;f=gcc%2Fconfig%2Fsvr3.h;h=b3b64a066c90d7256725e5400f84671b79719a50;hb=d5b52ebcb904321cccc7b7f63d61c584b046ce3e;hp=bc648caa4d8fe1ed63219bf2e52bb0339e67e6c4;hpb=58c17fd202ff23e0f93987b05ec8478ce4d3ead3;p=pf3gnuchains%2Fgcc-fork.git diff --git a/gcc/config/svr3.h b/gcc/config/svr3.h index bc648caa4d8..b3b64a066c9 100644 --- a/gcc/config/svr3.h +++ b/gcc/config/svr3.h @@ -1,69 +1,35 @@ -/* svr3.h -- operating system specific defines to be used when - targeting GCC for some generic System V Release 3 system. - Copyright (C) 1991 Free Software Foundation, Inc. +/* Operating system specific defines to be used when targeting GCC for + generic System V Release 3 system. + Copyright (C) 1991, 1996, 2000, 2002, 2004, 2007 Free Software Foundation, Inc. + Contributed by Ron Guilmette (rfg@monkeys.com). - Written by Ron Guilmette (rfg@ncd.com). +This file is part of GCC. -This file is part of GNU CC. - -GNU CC is free software; you can redistribute it and/or modify +GCC 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) +the Free Software Foundation; either version 3, or (at your option) any later version. -GNU CC is distributed in the hope that it will be useful, +GCC 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, 675 Mass Ave, Cambridge, MA 02139, USA. - - To use this file, make up a file with a name like: - - ?????svr3.h - - where ????? is replaced by the name of the basic hardware that you - are targeting for. Then, in the file ?????svr3.h, put something - like: +along with GCC; see the file COPYING3. If not see +. */ - #include "?????.h" - #include "svr3.h" - - followed by any really system-specific defines (or overrides of - defines) which you find that you need. For example, CPP_PREDEFINES - is defined here with only the defined -Dunix and -DSVR3. You should - probably override that in your target-specific ?????svr3.h file - with a set of defines that includes these, but also contains an - appropriate define for the type of hardware that you are targeting. -*/ +/* Define a symbol indicating that we are using svr3.h. */ +#define USING_SVR3_H /* Define a symbol so that libgcc* can know what sort of operating environment and assembler syntax we are targeting for. */ #define SVR3_target -/* Cpp, assembler, linker, library, and startfile spec's. */ - -/* You should redefine CPP_PREDEFINES in any file which includes this one. - The definition should be appropriate for the type of target system - involved, and it should include any -A (assertion) options which are - appropriate for the given target system. */ +/* Assembler, linker, library, and startfile spec's. */ -#undef CPP_PREDEFINES - -/* Output at beginning of assembler file. */ /* The .file command should always begin the output. */ - -#undef ASM_FILE_START -#define ASM_FILE_START(FILE) \ - do { output_file_directive ((FILE), main_input_filename); \ - if (optimize) ASM_FILE_START_1 (FILE); \ - } while (0) - -/* By default, do nothing: a few machines support .optim, but not most. */ -#undef ASM_FILE_START_1 -#define ASM_FILE_START_1(FILE) +#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true /* This says how to output an assembler line to define a global common symbol. */ @@ -75,7 +41,7 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. #define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ ( fputs (".comm ", (FILE)), \ assemble_name ((FILE), (NAME)), \ - fprintf ((FILE), ",%u\n", (SIZE))) + fprintf ((FILE), ",%lu\n", (unsigned long)(SIZE))) /* This says how to output an assembler line to define a local common symbol. */ @@ -87,31 +53,15 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. do { \ int align = exact_log2 (ROUNDED); \ if (align > 2) align = 2; \ - data_section (); \ + switch_to_section (data_section); \ ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align); \ ASM_OUTPUT_LABEL ((FILE), (NAME)); \ - fprintf ((FILE), "\t.set .,.+%u\n", (ROUNDED)); \ + fprintf ((FILE), "\t.set .,.+%u\n", (int)(ROUNDED)); \ } while (0) -#if 0 /* For now, let's leave these machine-specific. */ -/* Use crt1.o as a startup file and crtn.o as a closing file. */ - -#define STARTFILE_SPEC \ - "%{pg:gcrt1.o%s}%{!pg:%{p:mcrt1.o%s}%{!p:crt1.o%s}}" - -#define LIB_SPEC "%{p:-L/usr/lib/libp}%{pg:-L/usr/lib/libp} -lc crtn.o%s" - -/* Special flags for the linker. I don't know what they do. */ - -#define LINK_SPEC "%{T*} %{z:-lm}" -#endif - -/* Allow #sccs in preprocessor. */ - -#define SCCS_DIRECTIVE - /* Output #ident as a .ident. */ +#undef ASM_OUTPUT_IDENT #define ASM_OUTPUT_IDENT(FILE, NAME) \ fprintf (FILE, "\t.ident \"%s\"\n", NAME); @@ -119,13 +69,9 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. #define NO_DOLLAR_IN_LABEL -/* Implicit library calls should use memcpy, not bcopy, etc. */ - -#define TARGET_MEM_FUNCTIONS - /* System V Release 3 uses COFF debugging info. */ -#define SDB_DEBUGGING_INFO +#define SDB_DEBUGGING_INFO 1 /* We don't want to output DBX debugging information. */ @@ -146,30 +92,13 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. #undef WCHAR_TYPE_SIZE #define WCHAR_TYPE_SIZE BITS_PER_WORD -/* Assembler pseudos to introduce constants of various size. These - definitions hsould work for most svr3 systems. */ - -#undef ASM_BYTE_OP -#define ASM_BYTE_OP "\t.byte" - -/* This is how to output a reference to a user-level label named NAME. - `assemble_name' uses this. +/* The prefix to add to user-visible assembler symbols. For System V Release 3 the convention is to prepend a leading underscore onto user-level symbol names. */ -#undef ASM_OUTPUT_LABELREF -#define ASM_OUTPUT_LABELREF(FILE,NAME) fprintf (FILE, "_%s", NAME) - -/* This is how to output an internal numbered label where - PREFIX is the class of label and NUM is the number within the class. - - For most svr3 systems, the convention is that any symbol which begins - with a period is not put into the linker symbol table by the assembler. */ - -#undef ASM_OUTPUT_INTERNAL_LABEL -#define ASM_OUTPUT_INTERNAL_LABEL(FILE,PREFIX,NUM) \ - asm_fprintf (FILE, "%0L%s%d:\n", PREFIX, NUM) +#undef USER_LABEL_PREFIX +#define USER_LABEL_PREFIX "_" /* This is how to store into the string LABEL the symbol_ref name of an internal numbered label where @@ -181,22 +110,13 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. #undef ASM_GENERATE_INTERNAL_LABEL #define ASM_GENERATE_INTERNAL_LABEL(LABEL,PREFIX,NUM) \ - sprintf (LABEL, "*%s%s%d", LOCAL_LABEL_PREFIX, PREFIX, NUM) + sprintf (LABEL, "*%s%s%ld", LOCAL_LABEL_PREFIX, PREFIX, (long)(NUM)) /* We want local labels to start with period if made with asm_fprintf. */ #undef LOCAL_LABEL_PREFIX #define LOCAL_LABEL_PREFIX "." -/* 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. */ +/* Support const sections and the ctors and dtors sections for g++. */ /* Define a few machine-specific details of the implementation of constructors. @@ -205,20 +125,16 @@ the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. 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 TARGET_ASM_CONSTRUCTOR to push the address of the constructor. */ -#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 INIT_SECTION_ASM_OP "\t.section\t.init" +#define FINI_SECTION_ASM_OP "\t.section .fini,\"x\"" #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 +#ifndef 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. */ @@ -242,137 +158,3 @@ do { \ } while (0) #endif /* STACK_GROWS_DOWNWARD */ - -/* Add extra sections .init and .fini, in addition to .bss from att386.h. */ - -#undef EXTRA_SECTIONS -#define EXTRA_SECTIONS in_const, in_bss, in_init, in_fini - -#undef EXTRA_SECTION_FUNCTIONS -#define EXTRA_SECTION_FUNCTIONS \ - CONST_SECTION_FUNCTION \ - BSS_SECTION_FUNCTION \ - INIT_SECTION_FUNCTION \ - FINI_SECTION_FUNCTION - -#define BSS_SECTION_FUNCTION \ -void \ -bss_section () \ -{ \ - if (in_section != in_bss) \ - { \ - fprintf (asm_out_file, "\t%s\n", BSS_SECTION_ASM_OP); \ - in_section = in_bss; \ - } \ -} - -#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)) \ - 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()