mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-04 19:00:09 +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
88 lines
2.1 KiB
ArmAsm
88 lines
2.1 KiB
ArmAsm
/* Copyright (C) 1999-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
The GNU C Library is free software; you can redistribute it and/or
|
|
modify it under the terms of the GNU Lesser General Public
|
|
License as published by the Free Software Foundation; either
|
|
version 2.1 of the License, or (at your option) any later version.
|
|
|
|
The GNU C Library is distributed in the hope that it will be useful,
|
|
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
|
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
|
|
Lesser General Public License for more details.
|
|
|
|
You should have received a copy of the GNU Lesser General Public
|
|
License along with the GNU C Library; if not, see
|
|
<https://www.gnu.org/licenses/>. */
|
|
|
|
/* clone() is even more special than fork() as it mucks with stacks
|
|
and invokes a function in the right context after its all over. */
|
|
|
|
#include <sysdep.h>
|
|
#define _ERRNO_H 1
|
|
#include <bits/errno.h>
|
|
#include <tcb-offsets.h>
|
|
|
|
/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
|
|
pid_t *ptid, void *tls, pid_t *ctid); */
|
|
|
|
.text
|
|
ENTRY(__clone)
|
|
/* sanity check arguments. */
|
|
tst r4, r4
|
|
bt/s 0f
|
|
tst r5, r5
|
|
bf 1f
|
|
0:
|
|
bra .Lsyscall_error
|
|
mov #-EINVAL,r0
|
|
1:
|
|
/* insert the args onto the new stack */
|
|
mov.l r7, @-r5
|
|
/* save the function pointer as the 0th element */
|
|
mov.l r4, @-r5
|
|
|
|
/* do the system call */
|
|
mov r6, r4
|
|
mov.l @r15, r6
|
|
mov.l @(8,r15), r7
|
|
mov.l @(4,r15), r0
|
|
mov #+SYS_ify(clone), r3
|
|
trapa #0x15
|
|
mov r0, r1
|
|
mov #-12, r2
|
|
shad r2, r1
|
|
not r1, r1 // r1=0 means r0 = -1 to -4095
|
|
tst r1, r1 // i.e. error in linux
|
|
bf .Lclone_end
|
|
.Lsyscall_error:
|
|
SYSCALL_ERROR_HANDLER
|
|
.Lclone_end:
|
|
tst r0, r0
|
|
bt 2f
|
|
.Lpseudo_end:
|
|
rts
|
|
nop
|
|
2:
|
|
/* terminate the stack frame */
|
|
mov #0, r14
|
|
|
|
/* thread starts */
|
|
mov.l @r15, r1
|
|
jsr @r1
|
|
mov.l @(4,r15), r4
|
|
|
|
/* we are done, passing the return value through r0 */
|
|
mov r0, r4
|
|
mov #+SYS_ify(exit), r3
|
|
trapa #0x15
|
|
.align 2
|
|
.LG:
|
|
.long _GLOBAL_OFFSET_TABLE_
|
|
.L3:
|
|
.long PLTJMP(C_SYMBOL_NAME(_exit))
|
|
PSEUDO_END (__clone)
|
|
|
|
libc_hidden_def (__clone)
|
|
weak_alias (__clone, clone)
|