2018-12-21 01:48:04 +00:00
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/* Set saved user context to current context. C-SKY ABIV2 version.
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2024-01-01 18:12:26 +00:00
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Copyright (C) 2018-2024 Free Software Foundation, Inc.
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2018-12-21 01:48:04 +00:00
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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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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 05:40:42 +00:00
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<https://www.gnu.org/licenses/>. */
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2018-12-21 01:48:04 +00:00
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#include <sysdep.h>
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#include "ucontext_i.h"
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/* int setcontext (const ucontext_t *ucp) */
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ENTRY (__setcontext)
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mov t0, a0
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subi sp, 8
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stw a0, (sp, 0)
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/* Set sigmask. */
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movi a0, SIG_SETMASK
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addi a1, t0, UCONTEXT_SIGMASK
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movi a2, 0
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/* Do sigprocmask syscall. */
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#ifdef __PIC__
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subi sp, 8
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stw gb, (sp, 0)
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grs gb, .Lgetpc1
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.Lgetpc1:
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lrw a3, .Lgetpc1@GOTPC
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addu gb, gb, a3
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lrw a3, __sigprocmask@PLT
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ldr.w a3, (gb, a3 << 0)
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jsr a3
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ldw gb, (sp, 0)
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addi sp, 8
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#else
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jsri __sigprocmask
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#endif /* __PIC__ */
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ldw t0, (sp, 0)
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addi sp, 8
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/* Set r0-r11. Load a0-a3, for makecontext requires. */
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addi t1, t0, MCONTEXT_CSKY_A0
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ldm r0-r11, (t1)
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ldw sp, (t0, MCONTEXT_CSKY_SP) /* Load sp. */
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ldw r15, (t0, MCONTEXT_CSKY_LR) /* Load lr. */
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ldw t0, (t0, MCONTEXT_CSKY_PC) /* Load start addr. */
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jmp t0
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END (setcontext)
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weak_alias (__setcontext, setcontext)
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ENTRY (__startcontext)
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2019-03-11 01:51:14 +00:00
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.cfi_label .Ldummy
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cfi_undefined (lr)
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2018-12-21 01:48:04 +00:00
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mov a0, r9
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cmpnei r9, 0 /* r9 was set in makecontext. */
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bf 1f /* null, then exit. */
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/* Call setcontext. */
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#ifdef __PIC__
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grs t1, .Lgetpc2
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.Lgetpc2:
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lrw t0, .Lgetpc2@GOTPC
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addu t1, t1, t0
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lrw t0, __setcontext@GOT
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ldr.w t0, (t1, t0 << 0)
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#else
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lrw t0, __setcontext
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#endif
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jsr t0
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1:
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/* Call _exit. */
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#ifdef __PIC__
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grs t1, .Lgetpc3
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.Lgetpc3:
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lrw t0, .Lgetpc3@GOTPC
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addu t1, t1, t0
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lrw t0, _exit@GOT
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ldr.w t0, (t1, t0 << 0)
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#else
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lrw t0, _exit
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#endif
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jsr t0
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END (__startcontext)
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