mirror of
https://sourceware.org/git/glibc.git
synced 2024-11-10 15:20:10 +00:00
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
62 lines
1.8 KiB
ArmAsm
62 lines
1.8 KiB
ArmAsm
/* Stack-aligning implementation of __tls_get_addr. x86-64 version.
|
|
Copyright (C) 2017-2019 Free Software Foundation, Inc.
|
|
This file is part of the GNU C Library.
|
|
|
|
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/>. */
|
|
|
|
#ifdef SHARED
|
|
|
|
# include <sysdep.h>
|
|
# include "tlsdesc.h"
|
|
# include "rtld-offsets.h"
|
|
|
|
/* See __tls_get_addr and __tls_get_addr_slow in dl-tls.c. This function
|
|
call __tls_get_addr_slow on both slow paths. It realigns the stack
|
|
before the call to work around GCC PR58066. */
|
|
|
|
ENTRY (__tls_get_addr)
|
|
mov %fs:DTV_OFFSET, %RDX_LP
|
|
mov GL_TLS_GENERATION_OFFSET+_rtld_local(%rip), %RAX_LP
|
|
/* GL(dl_tls_generation) == dtv[0].counter */
|
|
cmp %RAX_LP, (%rdx)
|
|
jne 1f
|
|
mov TI_MODULE_OFFSET(%rdi), %RAX_LP
|
|
/* dtv[ti->ti_module] */
|
|
# ifdef __LP64__
|
|
salq $4, %rax
|
|
movq (%rdx,%rax), %rax
|
|
# else
|
|
movl (%rdx,%rax, 8), %eax
|
|
# endif
|
|
cmp $-1, %RAX_LP
|
|
je 1f
|
|
add TI_OFFSET_OFFSET(%rdi), %RAX_LP
|
|
ret
|
|
1:
|
|
/* On the slow path, align the stack. */
|
|
pushq %rbp
|
|
cfi_def_cfa_offset (16)
|
|
cfi_offset (%rbp, -16)
|
|
mov %RSP_LP, %RBP_LP
|
|
cfi_def_cfa_register (%rbp)
|
|
and $-16, %RSP_LP
|
|
call __tls_get_addr_slow
|
|
mov %RBP_LP, %RSP_LP
|
|
popq %rbp
|
|
cfi_def_cfa (%rsp, 8)
|
|
ret
|
|
END (__tls_get_addr)
|
|
#endif /* SHARED */
|