glibc/sysdeps/s390/s390-64/__longjmp.c
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

90 lines
2.6 KiB
C

/* Copyright (C) 2001-2019 Free Software Foundation, Inc.
This file is part of the GNU C Library.
Contributed by Martin Schwidefsky (schwidefsky@de.ibm.com).
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/>. */
#include <errno.h>
#include <sysdep.h>
#include <setjmp.h>
#include <bits/setjmp.h>
#include <stdlib.h>
#include <unistd.h>
#include <stap-probe.h>
/* Jump to the position specified by ENV, causing the
setjmp call there to return VAL, or 1 if VAL is 0. */
void
__longjmp (__jmp_buf env, int val)
{
#ifdef PTR_DEMANGLE
uintptr_t guard = THREAD_GET_POINTER_GUARD ();
# ifdef CHECK_SP
CHECK_SP (env, guard);
# endif
#elif defined CHECK_SP
CHECK_SP (env, 0);
#endif
register long int r2 __asm__ ("%r2") = val == 0 ? 1 : val;
#ifdef PTR_DEMANGLE
register uintptr_t r3 __asm__ ("%r3") = guard;
register void *r1 __asm__ ("%r1") = (void *) env;
#endif
/* Restore registers and jump back. */
__asm__ __volatile__ (
/* longjmp probe expects longjmp first argument, second
argument and target address. */
#ifdef PTR_DEMANGLE
"lmg %%r4,%%r5,64(%1)\n\t"
"xgr %%r4,%2\n\t"
"xgr %%r5,%2\n\t"
LIBC_PROBE_ASM (longjmp, 8@%1 -4@%0 8@%%r4)
#else
LIBC_PROBE_ASM (longjmp, 8@%1 -4@%0 8@%%r14)
#endif
/* restore fpregs */
"ld %%f8,80(%1)\n\t"
"ld %%f9,88(%1)\n\t"
"ld %%f10,96(%1)\n\t"
"ld %%f11,104(%1)\n\t"
"ld %%f12,112(%1)\n\t"
"ld %%f13,120(%1)\n\t"
"ld %%f14,128(%1)\n\t"
"ld %%f15,136(%1)\n\t"
/* restore gregs and return to jmp_buf target */
#ifdef PTR_DEMANGLE
"lmg %%r6,%%r13,0(%1)\n\t"
"lgr %%r15,%%r5\n\t"
LIBC_PROBE_ASM (longjmp_target, 8@%1 -4@%0 8@%%r4)
"br %%r4"
#else
"lmg %%r6,%%r15,0(%1)\n\t"
LIBC_PROBE_ASM (longjmp_target, 8@%1 -4@%0 8@%%r14)
"br %%r14"
#endif
: : "r" (r2),
#ifdef PTR_DEMANGLE
"r" (r1), "r" (r3)
#else
"a" (env)
#endif
);
/* Avoid `volatile function does return' warnings. */
for (;;);
}