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/* Get common system includes and various definitions and declarations |
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based on target macros. |
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Copyright (C) 2000, 2001, 2004, 2005, 2009 Free Software Foundation, Inc. |
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This file is part of GCC. |
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GCC is free software; you can redistribute it and/or modify it under |
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the terms of the GNU General Public License as published by the Free |
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Software Foundation; either version 3, or (at your option) any later |
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version. |
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GCC is distributed in the hope that it will be useful, but WITHOUT ANY |
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WARRANTY; without even the implied warranty of MERCHANTABILITY or |
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License |
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for more details. |
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Under Section 7 of GPL version 3, you are granted additional |
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permissions described in the GCC Runtime Library Exception, version |
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3.1, as published by the Free Software Foundation. |
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You should have received a copy of the GNU General Public License and |
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a copy of the GCC Runtime Library Exception along with this program; |
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see the files COPYING3 and COPYING.RUNTIME respectively. If not, see |
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. */ |
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#ifndef GCC_TSYSTEM_H |
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#define GCC_TSYSTEM_H |
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/* System headers (e.g. stdio.h, stdlib.h, unistd.h) sometimes |
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indirectly include getopt.h. Our -I flags will cause gcc's gnu |
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getopt.h to be included, not the platform's copy. In the default |
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case, gnu getopt.h will provide us with a no-argument prototype |
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which will generate -Wstrict-prototypes warnings. None of the |
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target files actually use getopt, so it is safe to tell gnu |
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getopt.h we never need this prototype. */ |
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#ifndef HAVE_DECL_GETOPT |
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#define HAVE_DECL_GETOPT 1 |
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#endif |
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/* We want everything from the glibc headers. */ |
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#define _GNU_SOURCE 1 |
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/* GCC supplies these headers. */ |
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#include |
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#include |
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#ifdef inhibit_libc |
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#ifndef malloc |
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extern void *malloc (size_t); |
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#endif |
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#ifndef free |
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extern void free (void *); |
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#endif |
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#ifndef atexit |
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extern int atexit (void (*)(void)); |
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#endif |
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#ifndef abort |
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extern void abort (void) __attribute__ ((__noreturn__)); |
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#endif |
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#ifndef strlen |
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extern size_t strlen (const char *); |
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#endif |
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#ifndef memcpy |
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extern void *memcpy (void *, const void *, size_t); |
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#endif |
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#ifndef memset |
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extern void *memset (void *, int, size_t); |
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#endif |
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#else /* ! inhibit_libc */ |
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/* We disable this when inhibit_libc, so that gcc can still be built without |
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needing header files first. */ |
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/* ??? This is not a good solution, since prototypes may be required in |
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some cases for correct code. */ |
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/* GCC supplies this header. */ |
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#include |
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/* All systems have this header. */ |
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#include |
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/* All systems have this header. */ |
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#include |
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/* All systems have this header. */ |
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#include |
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#ifndef errno |
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extern int errno; |
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#endif |
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/* If these system headers do not exist, fixincludes must create them. */ |
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#include |
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#include |
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#include |
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/* GCC supplies this header. */ |
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#include |
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/* If these system headers do not exist, fixincludes must create them. */ |
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#include |
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#endif /* inhibit_libc */ |
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/* Define a generic NULL if one hasn't already been defined. */ |
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#ifndef NULL |
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#define NULL 0 |
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#endif |
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/* GCC always provides __builtin_alloca(x). */ |
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#undef alloca |
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#define alloca(x) __builtin_alloca(x) |
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#ifdef ENABLE_RUNTIME_CHECKING |
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#define gcc_assert(EXPR) ((void)(!(EXPR) ? abort (), 0 : 0)) |
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#else |
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/* Include EXPR, so that unused variable warnings do not occur. */ |
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#define gcc_assert(EXPR) ((void)(0 && (EXPR))) |
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#endif |
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/* Use gcc_unreachable() to mark unreachable locations (like an |
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unreachable default case of a switch. Do not use gcc_assert(0). */ |
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#define gcc_unreachable() (abort ()) |
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/* Filename handling macros. */ |
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#include "filenames.h" |
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#endif /* ! GCC_TSYSTEM_H */ |