mirror of
git://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
72 lines
2.1 KiB
C
72 lines
2.1 KiB
C
/* Make sure dlopen/dlclose are not marked as leaf functions.
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Copyright (C) 2013-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Mike Frysinger <vapier@gentoo.org>
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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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/* The bug-dl-leaf.c file will call our lib_main directly. We do this to
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keep things simple -- no need to use --export-dynamic with the linker
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or build the main ELF as a PIE.
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The lib_main func will modify some of its state while dlopening and
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dlclosing the bug-dl-leaf-lib-cb.so library. The constructors and
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destructors in that library will call back into this library to also
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muck with state (the check_val_xxx funcs).
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If dlclose/dlopen are marked as "leaf" functions, then with newer
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versions of gcc, the state modification won't work correctly. */
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#include <assert.h>
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#include <dlfcn.h>
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static int val = 1;
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static int called = 0;
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void check_val_init (void)
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{
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called = 1;
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assert (val == 2);
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}
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void check_val_fini (void)
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{
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called = 2;
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assert (val == 4);
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}
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int lib_main (void)
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{
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int ret __attribute__ ((unused));
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void *hdl;
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/* Make sure the constructor sees the updated val. */
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val = 2;
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hdl = dlopen ("bug-dl-leaf-lib-cb.so", RTLD_GLOBAL | RTLD_LAZY);
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val = 3;
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assert (hdl);
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assert (called == 1);
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/* Make sure the destructor sees the updated val. */
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val = 4;
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ret = dlclose (hdl);
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val = 5;
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assert (ret == 0);
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assert (called == 2);
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return !val;
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}
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