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5a82c74822
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
135 lines
3.4 KiB
ArmAsm
135 lines
3.4 KiB
ArmAsm
/* Thread-local storage handling in the ELF dynamic linker. ARM version.
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Copyright (C) 2006-2019 Free Software Foundation, Inc.
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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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<https://www.gnu.org/licenses/>. */
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#include <sysdep.h>
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#include <arm-features.h>
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#include <tls.h>
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#include "tlsdesc.h"
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.text
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@ emit debug information with cfi
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@ use arm-specific pseudos for unwinding itself
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CFI_SECTIONS
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.hidden _dl_tlsdesc_return
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.global _dl_tlsdesc_return
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.type _dl_tlsdesc_return,#function
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cfi_startproc
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eabi_fnstart
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.align 2
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_dl_tlsdesc_return:
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ldr r0, [r0]
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BX (lr)
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eabi_fnend
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cfi_endproc
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.size _dl_tlsdesc_return, .-_dl_tlsdesc_return
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.hidden _dl_tlsdesc_undefweak
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.global _dl_tlsdesc_undefweak
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.type _dl_tlsdesc_undefweak,#function
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cfi_startproc
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eabi_fnstart
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.align 2
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_dl_tlsdesc_undefweak:
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GET_TLS (r1)
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rsb r0, r0, #0
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BX (lr)
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cfi_endproc
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eabi_fnend
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.size _dl_tlsdesc_undefweak, .-_dl_tlsdesc_undefweak
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#ifdef SHARED
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.hidden _dl_tlsdesc_dynamic
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.global _dl_tlsdesc_dynamic
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.type _dl_tlsdesc_dynamic,#function
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/*
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The assembly code that follows is a rendition of the following
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C code, hand-optimized a little bit.
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ptrdiff_t
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_dl_tlsdesc_dynamic(struct tlsdesc *tdp)
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{
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struct tlsdesc_dynamic_arg *td = tdp->argument.pointer;
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dtv_t *dtv = (dtv_t *)THREAD_DTV();
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if (__builtin_expect (td->gen_count <= dtv[0].counter
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&& dtv[td->tlsinfo.ti_module].pointer.val
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!= TLS_DTV_UNALLOCATED,
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1))
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return dtv[td->tlsinfo.ti_module].pointer.val +
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td->tlsinfo.ti_offset - __builtin_thread_pointer();
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return __tls_get_addr (&td->tlsinfo) - __builtin_thread_pointer();
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}
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*/
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cfi_startproc
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eabi_fnstart
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.align 2
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_dl_tlsdesc_dynamic:
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/* Our calling convention is to clobber r0, r1 and the processor
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flags. All others that are modified must be saved */
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eabi_save ({r2,r3,r4,lr})
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push {r2,r3,r4,lr}
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cfi_adjust_cfa_offset (16)
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cfi_rel_offset (r2,0)
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cfi_rel_offset (r3,4)
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cfi_rel_offset (r4,8)
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cfi_rel_offset (lr,12)
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ldr r1, [r0] /* td */
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GET_TLS (lr)
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mov r4, r0 /* r4 = tp */
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ldr r0, [r0]
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ldr r2, [r1, #8] /* gen_count */
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ldr r3, [r0]
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cmp r2, r3
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bhi 1f
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ldr r3, [r1]
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#ifndef ARM_NO_INDEX_REGISTER
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ldr r2, [r0, r3, lsl #3]
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#else
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add lr, r0, r3, lsl #3
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ldr r2, [lr]
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#endif
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cmn r2, #1
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ittt ne
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ldrne r3, [r1, #4]
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addne r3, r2, r3
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rsbne r0, r4, r3
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bne 2f
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1: mov r0, r1
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bl __tls_get_addr
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rsb r0, r4, r0
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2:
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#if ((defined (__ARM_ARCH_4T__) && defined (__THUMB_INTERWORK__)) \
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|| defined (ARM_ALWAYS_BX))
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pop {r2,r3,r4, lr}
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cfi_adjust_cfa_offset (-16)
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cfi_restore (lr)
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cfi_restore (r4)
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cfi_restore (r3)
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cfi_restore (r2)
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bx lr
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#else
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pop {r2,r3,r4, pc}
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#endif
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eabi_fnend
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cfi_endproc
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.size _dl_tlsdesc_dynamic, .-_dl_tlsdesc_dynamic
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#endif /* SHARED */
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