7700825281
* Makefile.def (target_modules): Add libssp. * configure.in (target_libraries): Add target-libssp. * configure: Rebuilt. * Makefile.in: Rebuilt. gcc/ * gcc.c (LINK_SSP_SPEC): Define. (link_ssp_spec): New variable. (LINK_COMMAND_SPEC): Add %(link_ssp). (static_specs): Add link_ssp_spec. * configure.ac (TARGET_LIBC_PROVIDES_SSP): New test. * configure: Rebuilt. * config.in: Rebuilt. * config/rs6000/linux.h (TARGET_THREAD_SSP_OFFSET): Define. * config/rs6000/linux64.h (TARGET_THREAD_SSP_OFFSET): Likewise. * config/i386/linux.h (TARGET_THREAD_SSP_OFFSET): Likewise. * config/i386/linux64.h (TARGET_THREAD_SSP_OFFSET): Likewise. * config/rs6000/rs6000.md (stack_protect_set, stack_protect_test): If TARGET_THREAD_SSP_OFFSET is defined, use -0x7010(13) resp. -0x7008(2) instead of reading __stack_chk_guard variable. * config/i386/i386.md (UNSPEC_SP_SET, UNSPEC_SP_TEST): Change number. (UNSPEC_SP_TLS_SET, UNSPEC_SP_TLS_TEST): New constants. (stack_protect_set, stack_protect_test): Use *_tls* patterns if TARGET_THREAD_SSP_OFFSET is defined. (stack_tls_protect_set_si, stack_tls_protect_set_di, stack_tls_protect_test_si, stack_tls_protect_test_di): New insns. Revert: 2005-06-27 Richard Henderson <rth@redhat.com> * libgcc-std.ver (GCC_4.1.0): New. * libgcc.h (__stack_chk_guard): Declare. (__stack_chk_fail, __stack_chk_fail_local): Declare. * libgcc2.c (L_stack_chk, L_stack_chk_local): New. * mklibgcc.in (lib2funcs): Add them. From-SVN: r101531
69 lines
2.2 KiB
C
69 lines
2.2 KiB
C
/* Checking sprintf.
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Copyright (C) 2005 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 2, or (at your option) any later
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version.
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In addition to the permissions in the GNU General Public License, the
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Free Software Foundation gives you unlimited permission to link the
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compiled version of this file into combinations with other programs,
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and to distribute those combinations without any restriction coming
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from the use of this file. (The General Public License restrictions
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do apply in other respects; for example, they cover modification of
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the file, and distribution when not linked into a combine
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executable.)
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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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You should have received a copy of the GNU General Public License
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along with GCC; see the file COPYING. If not, write to the Free
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Software Foundation, 59 Temple Place - Suite 330, Boston, MA
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02111-1307, USA. */
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/* As a special exception, if you link this library with files compiled with
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GCC to produce an executable, this does not cause the resulting executable
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to be covered by the GNU General Public License. This exception does not
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however invalidate any other reasons why the executable file might be
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covered by the GNU General Public License. */
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#include "config.h"
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#include <ssp/ssp.h>
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#include <stdarg.h>
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#ifdef HAVE_LIMITS_H
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# include <limits.h>
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#endif
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#ifdef HAVE_STDIO_H
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# include <stdio.h>
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#endif
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extern void __chk_fail (void) __attribute__((__noreturn__));
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#ifdef HAVE_USABLE_VSNPRINTF
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int
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__sprintf_chk (char *s, int flags __attribute__((unused)),
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size_t slen, const char *format, ...)
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{
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va_list arg;
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int done;
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va_start (arg, format);
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if (slen > (size_t) INT_MAX)
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done = vsprintf (s, format, arg);
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else
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{
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done = vsnprintf (s, slen, format, arg);
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if (done >= 0 && (size_t) done >= slen)
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__chk_fail ();
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}
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va_end (arg);
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return done;
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}
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#endif
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