2018-12-21 01:48:04 +00:00
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/* Implementation of profiling support. C-SKY ABIV2 version.
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2021-01-02 19:32:25 +00:00
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Copyright (C) 2018-2021 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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/* Use an assembly stub with a special ABI. The calling lr has been
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pushed to the stack (which will be misaligned). We should preserve
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all registers except ip and pop a word off the stack.
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NOTE: This assumes mcount_internal does not clobber any non-core
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(coprocessor) registers. Currently this is true, but may require
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additional attention in the future.
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The calling sequence looks something like:
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func:
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push lr
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jbsr _mount
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<function body>
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*/
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/* Don't call mcount when calling mcount... */
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#undef PROF
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ENTRY (_mcount)
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subi sp, 20
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stw a0, (sp, 0)
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stw a1, (sp, 4)
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stw a2, (sp, 8)
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stw a3, (sp, 12)
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stw lr, (sp, 16)
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mov a1, lr
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ldw a0, (sp, 20)
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#ifdef __PIC__
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grs t1, .Lgetpc
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.Lgetpc:
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lrw t0, .Lgetpc@GOTPC
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addu t1, t0
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lrw t0, __mcount_internal@PLT
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ldr.w t0, (t1, t0 << 0)
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jsr t0
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#else
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jsri __mcount_internal
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#endif /* !__PIC__ */
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ldw a0, (sp, 0)
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ldw a1, (sp, 4)
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ldw a2, (sp, 8)
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ldw a3, (sp, 12)
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ldw t1, (sp, 16)
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ldw lr, (sp, 20)
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addi sp, 24
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jmp t1
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END (_mcount)
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