/* 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 */