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
85 lines
3.4 KiB
ArmAsm
85 lines
3.4 KiB
ArmAsm
/* Assembly code template for system call stubs.
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Copyright (C) 2009-2019 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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/* The real guts of this work are in the macros defined in the
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machine- and kernel-specific sysdep.h header file. Cancellable syscalls
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should be implemented using C implementation with SYSCALL_CANCEL macro.
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Each system call's object is built by a rule in sysd-syscalls
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generated by make-syscalls.sh that #include's this file after
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defining a few macros:
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SYSCALL_NAME syscall name
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SYSCALL_NARGS number of arguments this call takes
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SYSCALL_SYMBOL primary symbol name
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SYSCALL_NOERRNO 1 to define a no-errno version (see below)
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SYSCALL_ERRVAL 1 to define an error-value version (see below)
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We used to simply pipe the correct three lines below through cpp into
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the assembler. The main reason to have this file instead is so that
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stub objects can be assembled with -g and get source line information
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that leads a user back to a source file and these fine comments. The
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average user otherwise has a hard time knowing which "syscall-like"
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functions in libc are plain stubs and which have nontrivial C wrappers.
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Some versions of the "plain" stub generation macros are more than a few
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instructions long and the untrained eye might not distinguish them from
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some compiled code that inexplicably lacks source line information. */
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#include <sysdep.h>
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/* This indirection is needed so that SYMBOL gets macro-expanded. */
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#define syscall_hidden_def(SYMBOL) hidden_def (SYMBOL)
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#define T_PSEUDO(SYMBOL, NAME, N) PSEUDO (SYMBOL, NAME, N)
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#define T_PSEUDO_NOERRNO(SYMBOL, NAME, N) PSEUDO_NOERRNO (SYMBOL, NAME, N)
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#define T_PSEUDO_ERRVAL(SYMBOL, NAME, N) PSEUDO_ERRVAL (SYMBOL, NAME, N)
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#define T_PSEUDO_END(SYMBOL) PSEUDO_END (SYMBOL)
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#define T_PSEUDO_END_NOERRNO(SYMBOL) PSEUDO_END_NOERRNO (SYMBOL)
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#define T_PSEUDO_END_ERRVAL(SYMBOL) PSEUDO_END_ERRVAL (SYMBOL)
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#if SYSCALL_NOERRNO
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/* This kind of system call stub never returns an error.
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We return the return value register to the caller unexamined. */
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T_PSEUDO_NOERRNO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
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ret_NOERRNO
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T_PSEUDO_END_NOERRNO (SYSCALL_SYMBOL)
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#elif SYSCALL_ERRVAL
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/* This kind of system call stub returns the errno code as its return
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value, or zero for success. We may massage the kernel's return value
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to meet that ABI, but we never set errno here. */
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T_PSEUDO_ERRVAL (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
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ret_ERRVAL
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T_PSEUDO_END_ERRVAL (SYSCALL_SYMBOL)
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#else
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/* This is a "normal" system call stub: if there is an error,
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it returns -1 and sets errno. */
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T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
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ret
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T_PSEUDO_END (SYSCALL_SYMBOL)
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#endif
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syscall_hidden_def (SYSCALL_SYMBOL)
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