2005-01-07 23:14:21 +00:00
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/* PLT trampolines. PPC32 version.
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2020-01-01 00:14:33 +00:00
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Copyright (C) 2005-2020 Free Software Foundation, Inc.
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2005-01-07 23:14:21 +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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2012-02-09 23:18:22 +00:00
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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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2005-01-07 23:14:21 +00:00
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#include <sysdep.h>
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.section ".text"
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.align 2
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.globl _dl_runtime_resolve
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.type _dl_runtime_resolve,@function
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_dl_runtime_resolve:
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2006-01-07 03:58:05 +00:00
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cfi_startproc
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2005-01-07 23:14:21 +00:00
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# We need to save the registers used to pass parameters, and register 0,
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# which is used by _mcount; the registers are saved in a stack frame.
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2005-01-08 05:41:58 +00:00
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stwu r1,-64(r1)
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2006-01-07 03:58:05 +00:00
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cfi_adjust_cfa_offset (64)
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2005-01-08 05:41:58 +00:00
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stw r0,12(r1)
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stw r3,16(r1)
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stw r4,20(r1)
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2005-01-07 23:14:21 +00:00
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# The code that calls this has put parameters for `fixup' in r12 and r11.
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2005-01-08 05:41:58 +00:00
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mr r3,r12
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stw r5,24(r1)
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mr r4,r11
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stw r6,28(r1)
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mflr r0
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2005-01-07 23:14:21 +00:00
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# We also need to save some of the condition register fields
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2005-01-08 05:41:58 +00:00
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stw r7,32(r1)
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2006-08-14 23:11:18 +00:00
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# Don't clobber the caller's LRSAVE, it is needed by _mcount.
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stw r0,48(r1)
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cfi_offset (lr, -16)
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2005-01-08 05:41:58 +00:00
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stw r8,36(r1)
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mfcr r0
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stw r9,40(r1)
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stw r10,44(r1)
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stw r0,8(r1)
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2005-01-07 23:14:21 +00:00
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bl _dl_fixup@local
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# 'fixup' returns the address we want to branch to.
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2005-01-08 05:41:58 +00:00
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mtctr r3
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2005-01-07 23:14:21 +00:00
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# Put the registers back...
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2006-08-14 23:11:18 +00:00
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lwz r0,48(r1)
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2005-01-08 05:41:58 +00:00
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lwz r10,44(r1)
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lwz r9,40(r1)
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mtlr r0
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lwz r8,36(r1)
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lwz r0,8(r1)
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lwz r7,32(r1)
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lwz r6,28(r1)
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mtcrf 0xFF,r0
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lwz r5,24(r1)
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lwz r4,20(r1)
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lwz r3,16(r1)
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lwz r0,12(r1)
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2005-01-07 23:14:21 +00:00
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# ...unwind the stack frame, and jump to the PLT entry we updated.
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2005-01-08 05:41:58 +00:00
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addi r1,r1,64
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2005-01-07 23:14:21 +00:00
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bctr
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2006-01-07 03:58:05 +00:00
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cfi_endproc
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2005-01-07 23:14:21 +00:00
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.size _dl_runtime_resolve,.-_dl_runtime_resolve
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2005-07-07 02:39:45 +00:00
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#ifndef PROF
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2005-01-07 23:14:21 +00:00
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.align 2
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.globl _dl_prof_resolve
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.type _dl_prof_resolve,@function
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_dl_prof_resolve:
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2006-01-07 03:58:05 +00:00
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cfi_startproc
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2005-01-07 23:14:21 +00:00
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# We need to save the registers used to pass parameters, and register 0,
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# which is used by _mcount; the registers are saved in a stack frame.
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2005-01-08 05:41:58 +00:00
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stwu r1,-320(r1)
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2006-01-07 03:58:05 +00:00
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cfi_adjust_cfa_offset (320)
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2005-01-08 05:41:58 +00:00
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/* Stack layout:
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+312 stackframe
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+308 lr
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+304 r1
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+288 v12
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+272 v11
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+256 v10
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+240 v9
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+224 v8
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+208 v7
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+192 v6
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+176 v5
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+160 v4
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+144 v3
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+128 v2
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+112 v1
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+104 fp8
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+96 fp7
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+88 fp6
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+80 fp5
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+72 fp4
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+64 fp3
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+56 fp2
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+48 fp1
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+44 r10
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+40 r9
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+36 r8
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+32 r7
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+28 r6
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+24 r5
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+20 r4
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+16 r3
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+12 r0
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+8 cr
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r1 link
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*/
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stw r0,12(r1)
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stw r3,16(r1)
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stw r4,20(r1)
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2005-01-07 23:14:21 +00:00
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# The code that calls this has put parameters for `fixup' in r12 and r11.
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2005-01-08 05:41:58 +00:00
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mr r3,r12
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stw r5,24(r1)
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mr r4,r11
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stw r6,28(r1)
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mflr r5
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2005-01-07 23:14:21 +00:00
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# We also need to save some of the condition register fields.
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2005-01-08 05:41:58 +00:00
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stw r7,32(r1)
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2006-08-14 23:11:18 +00:00
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# Don't clobber the caller's LRSAVE, it is needed by _mcount.
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stw r5,308(r1)
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cfi_offset (lr, -12)
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2005-01-08 05:41:58 +00:00
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stw r8,36(r1)
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mfcr r0
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stw r9,40(r1)
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stw r10,44(r1)
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stw r0,8(r1)
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2012-11-01 21:48:47 +00:00
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#ifndef __NO_FPRS__
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2005-01-08 05:41:58 +00:00
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# Save the floating point registers
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stfd fp1,48(r1)
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stfd fp2,56(r1)
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stfd fp3,64(r1)
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stfd fp4,72(r1)
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stfd fp5,80(r1)
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stfd fp6,88(r1)
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stfd fp7,96(r1)
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stfd fp8,104(r1)
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2012-11-01 21:48:47 +00:00
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#endif
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2005-01-08 05:41:58 +00:00
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# XXX TODO: store vmx registers
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# Load the extra parameters.
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addi r6,r1,16
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addi r7,r1,312
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li r0,-1
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stw r0,0(r7)
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2005-01-07 23:14:21 +00:00
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bl _dl_profile_fixup@local
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# 'fixup' returns the address we want to branch to.
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2005-01-08 05:41:58 +00:00
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mtctr r3
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2005-01-07 23:14:21 +00:00
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# Put the registers back...
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2006-08-14 23:11:18 +00:00
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lwz r0,308(r1)
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2005-01-08 05:41:58 +00:00
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lwz r10,44(r1)
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lwz r9,40(r1)
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mtlr r0
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lwz r8,36(r1)
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lwz r0,8(r1)
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lwz r7,32(r1)
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lwz r6,28(r1)
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mtcrf 0xFF,r0
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lwz r5,24(r1)
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lwz r4,20(r1)
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lwz r3,16(r1)
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lwz r0,12(r1)
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2012-11-01 21:48:47 +00:00
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#ifndef __NO_FPRS__
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2005-01-08 05:41:58 +00:00
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# Load the floating point registers.
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lfd fp1,48(r1)
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lfd fp2,56(r1)
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lfd fp3,64(r1)
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lfd fp4,72(r1)
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lfd fp5,80(r1)
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lfd fp6,88(r1)
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lfd fp7,96(r1)
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lfd fp8,104(r1)
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2012-11-01 21:48:47 +00:00
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#endif
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2005-01-07 23:14:21 +00:00
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# ...unwind the stack frame, and jump to the PLT entry we updated.
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2005-01-08 05:41:58 +00:00
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addi r1,r1,320
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2005-01-07 23:14:21 +00:00
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bctr
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2006-01-07 03:58:05 +00:00
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cfi_endproc
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2005-01-07 23:14:21 +00:00
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.size _dl_prof_resolve,.-_dl_prof_resolve
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2005-07-07 02:39:45 +00:00
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#endif
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