glibc/sysdeps/unix/sysv/linux/m68k/clone.S
Paul Eggert 5a82c74822 Prefer https to http for gnu.org and fsf.org URLs
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
2019-09-07 02:43:31 -07:00

110 lines
2.9 KiB
ArmAsm

/* Copyright (C) 1996-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Andreas Schwab (schwab@issan.informatik.uni-dortmund.de)
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 <tls.h>
/* int clone(int (*fn)(void *arg), void *child_stack, int flags, void *arg,
void *parent_tidptr, void *tls, void *child_tidptr) */
.text
ENTRY (__clone)
/* Sanity check arguments. */
movel #-EINVAL, %d0
movel 4(%sp), %a0 /* no NULL function pointers */
tstl %a0
jeq SYSCALL_ERROR_LABEL
movel 8(%sp), %a1 /* no NULL stack pointers */
tstl %a1
jeq SYSCALL_ERROR_LABEL
/* Allocate space and copy the argument onto the new stack. */
movel 16(%sp), -(%a1)
/* Do the system call */
movel 12+0(%sp), %d1 /* get flags */
movel %d3, -(%a1) /* save %d3 and get parent_tidptr */
movel %d3, -(%sp)
cfi_adjust_cfa_offset (4)
cfi_rel_offset (%d3, 0)
movel 20+4(%sp), %d3
movel %d4, -(%a1) /* save %d4 and get child_tidptr */
movel %d4, -(%sp)
cfi_adjust_cfa_offset (4)
cfi_rel_offset (%d4, 0)
movel 28+8(%sp), %d4
movel %d5, -(%a1) /* save %d5 and get tls */
movel %d5, -(%sp)
cfi_adjust_cfa_offset (4)
cfi_rel_offset (%d5, 0)
movel 24+12(%sp), %d5
/* save %d2 and get stack pointer */
#ifdef __mcoldfire__
movel %d2, -(%a1)
movel %d2, -(%sp)
cfi_adjust_cfa_offset (4)
cfi_rel_offset (%d2, 0)
movel %a1, %d2
#else
exg %d2, %a1 /* save %d2 and get stack pointer */
cfi_register (%d2, %a1)
#endif
movel #SYS_ify (clone), %d0
/* End FDE now, because in the child the unwind info will be
wrong. */
cfi_endproc
trap #0
#ifdef __mcoldfire__
movel (%sp)+, %d2
#else
exg %d2, %a1 /* restore %d2 */
#endif
movel (%sp)+, %d5 /* restore %d5, %d4 and %d3 */
movel (%sp)+, %d4
movel (%sp)+, %d3
tstl %d0
jmi SYSCALL_ERROR_LABEL
jeq 1f
rts
1:
cfi_startproc
cfi_undefined (pc) /* Mark end of stack */
subl %fp, %fp /* terminate the stack frame */
jsr (%a0)
movel %d0, %d1
movel #SYS_ify (exit), %d0
trap #0
cfi_endproc
cfi_startproc
PSEUDO_END (__clone)
libc_hidden_def (__clone)
weak_alias (__clone, clone)