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Diffstat (limited to 'gcc-4.2.1-5666.3/gcc/config/svr3.h')
| -rw-r--r-- | gcc-4.2.1-5666.3/gcc/config/svr3.h | 161 |
1 files changed, 161 insertions, 0 deletions
diff --git a/gcc-4.2.1-5666.3/gcc/config/svr3.h b/gcc-4.2.1-5666.3/gcc/config/svr3.h new file mode 100644 index 000000000..283ebf0cd --- /dev/null +++ b/gcc-4.2.1-5666.3/gcc/config/svr3.h @@ -0,0 +1,161 @@ +/* Operating system specific defines to be used when targeting GCC for + generic System V Release 3 system. + Copyright (C) 1991, 1996, 2000, 2002, 2004 Free Software Foundation, Inc. + Contributed by Ron Guilmette (rfg@monkeys.com). + +This file is part of GCC. + +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) +any later version. + +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 GCC; see the file COPYING. If not, write to +the Free Software Foundation, 51 Franklin Street, Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* 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 + +/* Assembler, linker, library, and startfile spec's. */ + +/* The .file command should always begin the output. */ +#define TARGET_ASM_FILE_START_FILE_DIRECTIVE true + +/* This says how to output an assembler line + to define a global common symbol. */ +/* We don't use ROUNDED because the standard compiler doesn't, + and the linker gives error messages if a common symbol + has more than one length value. */ + +#undef ASM_OUTPUT_COMMON +#define ASM_OUTPUT_COMMON(FILE, NAME, SIZE, ROUNDED) \ +( fputs (".comm ", (FILE)), \ + assemble_name ((FILE), (NAME)), \ + fprintf ((FILE), ",%lu\n", (unsigned long)(SIZE))) + +/* This says how to output an assembler line + to define a local common symbol. */ + +/* Note that using bss_section here caused errors + in building shared libraries on system V.3. */ +#undef ASM_OUTPUT_LOCAL +#define ASM_OUTPUT_LOCAL(FILE, NAME, SIZE, ROUNDED) \ + do { \ + int align = exact_log2 (ROUNDED); \ + if (align > 2) align = 2; \ + switch_to_section (data_section); \ + ASM_OUTPUT_ALIGN ((FILE), align == -1 ? 2 : align); \ + ASM_OUTPUT_LABEL ((FILE), (NAME)); \ + fprintf ((FILE), "\t.set .,.+%u\n", (int)(ROUNDED)); \ + } while (0) + +/* Output #ident as a .ident. */ + +#undef ASM_OUTPUT_IDENT +#define ASM_OUTPUT_IDENT(FILE, NAME) \ + fprintf (FILE, "\t.ident \"%s\"\n", NAME); + +/* Use periods rather than dollar signs in special g++ assembler names. */ + +#define NO_DOLLAR_IN_LABEL + +/* System V Release 3 uses COFF debugging info. */ + +#define SDB_DEBUGGING_INFO 1 + +/* We don't want to output DBX debugging information. */ + +#undef DBX_DEBUGGING_INFO + +/* 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 + +/* 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 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 + PREFIX is the class of label and NUM is the number within the class. + This is suitable for output with `assemble_name'. + + 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_GENERATE_INTERNAL_LABEL +#define ASM_GENERATE_INTERNAL_LABEL(LABEL,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++. */ + +/* 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 TARGET_ASM_CONSTRUCTOR to push the address of the constructor. */ + +#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. */ + +#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. */ +#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 */ |