mirror of
https://sourceware.org/git/glibc.git
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5a82c74822
Also, change sources.redhat.com to sourceware.org.
This patch was automatically generated by running the following shell
script, which uses GNU sed, and which avoids modifying files imported
from upstream:
sed -ri '
s,(http|ftp)(://(.*\.)?(gnu|fsf|sourceware)\.org($|[^.]|\.[^a-z])),https\2,g
s,(http|ftp)(://(.*\.)?)sources\.redhat\.com($|[^.]|\.[^a-z]),https\2sourceware.org\4,g
' \
$(find $(git ls-files) -prune -type f \
! -name '*.po' \
! -name 'ChangeLog*' \
! -path COPYING ! -path COPYING.LIB \
! -path manual/fdl-1.3.texi ! -path manual/lgpl-2.1.texi \
! -path manual/texinfo.tex ! -path scripts/config.guess \
! -path scripts/config.sub ! -path scripts/install-sh \
! -path scripts/mkinstalldirs ! -path scripts/move-if-change \
! -path INSTALL ! -path locale/programs/charmap-kw.h \
! -path po/libc.pot ! -path sysdeps/gnu/errlist.c \
! '(' -name configure \
-execdir test -f configure.ac -o -f configure.in ';' ')' \
! '(' -name preconfigure \
-execdir test -f preconfigure.ac ';' ')' \
-print)
and then by running 'make dist-prepare' to regenerate files built
from the altered files, and then executing the following to cleanup:
chmod a+x sysdeps/unix/sysv/linux/riscv/configure
# Omit irrelevant whitespace and comment-only changes,
# perhaps from a slightly-different Autoconf version.
git checkout -f \
sysdeps/csky/configure \
sysdeps/hppa/configure \
sysdeps/riscv/configure \
sysdeps/unix/sysv/linux/csky/configure
# Omit changes that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/powerpc/powerpc64/ppc-mcount.S: trailing lines
git checkout -f \
sysdeps/powerpc/powerpc64/ppc-mcount.S \
sysdeps/unix/sysv/linux/s390/s390-64/syscall.S
# Omit change that caused a pre-commit check to fail like this:
# remote: *** error: sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S: last line does not end in newline
git checkout -f sysdeps/sparc/sparc64/multiarch/memcpy-ultra3.S
58 lines
2.0 KiB
C
58 lines
2.0 KiB
C
/* Copyright (C) 2011-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Chris Metcalf <cmetcalf@tilera.com>, 2011.
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The GNU C Library is free software; you can redistribute it and/or
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modify it under the terms of the GNU Lesser General Public
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License as published by the Free Software Foundation; either
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version 2.1 of the License, or (at your option) any later version.
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The GNU C Library is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public
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License along with the GNU C Library. If not, see
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<https://www.gnu.org/licenses/>. */
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#include <jmpbuf-offsets.h>
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#include <sysdep.h>
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#include <setjmp.h>
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#include <signal.h>
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#include <stdio.h>
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#include <stackinfo.h>
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#ifdef _STACK_GROWS_DOWN
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#define called_from(this, saved) ((this) < (saved))
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#else
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#define called_from(this, saved) ((this) > (saved))
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#endif
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extern void ____longjmp_chk (__jmp_buf __env, int __val)
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__attribute__ ((__noreturn__));
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void ____longjmp_chk (__jmp_buf env, int val)
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{
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void *this_frame = __builtin_frame_address (0);
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void *saved_frame = JB_FRAME_ADDRESS (env);
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INTERNAL_SYSCALL_DECL (err);
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stack_t ss;
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/* If "env" is from a frame that called us, we're all set. */
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if (called_from(this_frame, saved_frame))
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__longjmp (env, val);
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/* If we can't get the current stack state, give up and do the longjmp. */
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if (INTERNAL_SYSCALL (sigaltstack, err, 2, NULL, &ss) != 0)
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__longjmp (env, val);
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/* If we we are executing on the alternate stack and within the
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bounds, do the longjmp. */
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if (ss.ss_flags == SS_ONSTACK
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&& (this_frame >= ss.ss_sp && this_frame < (ss.ss_sp + ss.ss_size)))
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__longjmp (env, val);
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__fortify_fail ("longjmp causes uninitialized stack frame");
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}
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