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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
70 lines
2.4 KiB
C
70 lines
2.4 KiB
C
/* mmap - map files or devices into memory. Linux version.
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Copyright (C) 1999-2019 Free Software Foundation, Inc.
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This file is part of the GNU C Library.
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Contributed by Jakub Jelinek <jakub@redhat.com>, 1999.
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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 <unistd.h>
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#include <sys/mman.h>
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#include <sysdep.h>
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#include <mmap_internal.h>
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#ifdef __NR_mmap2
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/* To avoid silent truncation of offset when using mmap2, do not accept
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offset larger than 1 << (page_shift + off_t bits). For archictures with
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32 bits off_t and page size of 4096 it would be 1^44. */
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# define MMAP_OFF_HIGH_MASK \
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((-(MMAP2_PAGE_UNIT << 1) << (8 * sizeof (off_t) - 1)))
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#else
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/* Some ABIs might use __NR_mmap while having sizeof (off_t) smaller than
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sizeof (off64_t) (currently only MIPS64n32). For this case just set
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zero the higher bits so mmap with large offset does not fail. */
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# define MMAP_OFF_HIGH_MASK 0x0
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#endif
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#define MMAP_OFF_MASK (MMAP_OFF_HIGH_MASK | MMAP_OFF_LOW_MASK)
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/* An architecture may override this. */
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#ifndef MMAP_PREPARE
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# define MMAP_PREPARE(addr, len, prot, flags, fd, offset)
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#endif
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void *
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__mmap64 (void *addr, size_t len, int prot, int flags, int fd, off64_t offset)
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{
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MMAP_CHECK_PAGE_UNIT ();
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if (offset & MMAP_OFF_MASK)
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return (void *) INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
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MMAP_PREPARE (addr, len, prot, flags, fd, offset);
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#ifdef __NR_mmap2
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return (void *) MMAP_CALL (mmap2, addr, len, prot, flags, fd,
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(off_t) (offset / MMAP2_PAGE_UNIT));
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#else
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return (void *) MMAP_CALL (mmap, addr, len, prot, flags, fd, offset);
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#endif
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}
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weak_alias (__mmap64, mmap64)
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libc_hidden_def (__mmap64)
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#ifdef __OFF_T_MATCHES_OFF64_T
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weak_alias (__mmap64, mmap)
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weak_alias (__mmap64, __mmap)
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libc_hidden_def (__mmap)
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#endif
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