mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 07:10:06 +00:00
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
63 lines
2.0 KiB
C
63 lines
2.0 KiB
C
/* Copyright (C) 1991-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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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 <errno.h>
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#include <stdint.h>
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#include <unistd.h>
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#include <libc-internal.h>
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/* Defined in brk.c. */
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extern void *__curbrk;
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extern int __brk (void *addr);
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/* Extend the process's data space by INCREMENT.
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If INCREMENT is negative, shrink data space by - INCREMENT.
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Return start of new space allocated, or -1 for errors. */
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void *
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__sbrk (intptr_t increment)
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{
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void *oldbrk;
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/* If this is not part of the dynamic library or the library is used
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via dynamic loading in a statically linked program update
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__curbrk from the kernel's brk value. That way two separate
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instances of __brk and __sbrk can share the heap, returning
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interleaved pieces of it. */
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if (__curbrk == NULL || __libc_multiple_libcs)
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if (__brk (0) < 0) /* Initialize the break. */
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return (void *) -1;
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if (increment == 0)
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return __curbrk;
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oldbrk = __curbrk;
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if (increment > 0
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? ((uintptr_t) oldbrk + (uintptr_t) increment < (uintptr_t) oldbrk)
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: ((uintptr_t) oldbrk < (uintptr_t) -increment))
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{
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__set_errno (ENOMEM);
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return (void *) -1;
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}
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if (__brk (oldbrk + increment) < 0)
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return (void *) -1;
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return oldbrk;
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}
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libc_hidden_def (__sbrk)
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weak_alias (__sbrk, sbrk)
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