mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-12 06:10:10 +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
113 lines
3.1 KiB
ArmAsm
113 lines
3.1 KiB
ArmAsm
/* Copyright (C) 1995-2019 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/>. */
|
|
|
|
#include <sysdep.h>
|
|
|
|
/* This is the canonical entry point, usually the first thing in the text
|
|
segment.
|
|
|
|
Note that the code in the .init section has already been run.
|
|
This includes _init and _libc_init
|
|
|
|
|
|
At this entry point, most registers' values are unspecified, except:
|
|
|
|
x0/w0 Contains a function pointer to be registered with `atexit'.
|
|
This is how the dynamic linker arranges to have DT_FINI
|
|
functions called for shared libraries that have been loaded
|
|
before this code runs.
|
|
|
|
sp The stack contains the arguments and environment:
|
|
0(sp) argc
|
|
8(sp) argv[0]
|
|
...
|
|
(8*argc)(sp) NULL
|
|
(8*(argc+1))(sp) envp[0]
|
|
...
|
|
NULL
|
|
*/
|
|
|
|
.text
|
|
.globl _start
|
|
.type _start,#function
|
|
_start:
|
|
/* Create an initial frame with 0 LR and FP */
|
|
mov x29, #0
|
|
mov x30, #0
|
|
|
|
/* Setup rtld_fini in argument register */
|
|
mov x5, x0
|
|
|
|
/* Load argc and a pointer to argv */
|
|
ldr PTR_REG (1), [sp, #0]
|
|
add x2, sp, #PTR_SIZE
|
|
|
|
/* Setup stack limit in argument register */
|
|
mov x6, sp
|
|
|
|
#ifdef PIC
|
|
# ifdef SHARED
|
|
adrp x0, :got:main
|
|
ldr PTR_REG (0), [x0, #:got_lo12:main]
|
|
|
|
adrp x3, :got:__libc_csu_init
|
|
ldr PTR_REG (3), [x3, #:got_lo12:__libc_csu_init]
|
|
|
|
adrp x4, :got:__libc_csu_fini
|
|
ldr PTR_REG (4), [x4, #:got_lo12:__libc_csu_fini]
|
|
# else
|
|
adrp x0, __wrap_main
|
|
add x0, x0, :lo12:__wrap_main
|
|
adrp x3, __libc_csu_init
|
|
add x3, x3, :lo12:__libc_csu_init
|
|
adrp x4, __libc_csu_fini
|
|
add x4, x4, :lo12:__libc_csu_fini
|
|
# endif
|
|
#else
|
|
/* Set up the other arguments in registers */
|
|
MOVL (0, main)
|
|
MOVL (3, __libc_csu_init)
|
|
MOVL (4, __libc_csu_fini)
|
|
#endif
|
|
|
|
/* __libc_start_main (main, argc, argv, init, fini, rtld_fini,
|
|
stack_end) */
|
|
|
|
/* Let the libc call main and exit with its return code. */
|
|
bl __libc_start_main
|
|
|
|
/* should never get here....*/
|
|
bl abort
|
|
|
|
#if defined PIC && !defined SHARED
|
|
/* When main is not defined in the executable but in a shared library
|
|
then a wrapper is needed in crt1.o of the static-pie enabled libc,
|
|
because crt1.o and rcrt1.o share code and the later must avoid the
|
|
use of GOT relocations before __libc_start_main is called. */
|
|
__wrap_main:
|
|
b main
|
|
#endif
|
|
|
|
/* Define a symbol for the first piece of initialized data. */
|
|
.data
|
|
.globl __data_start
|
|
__data_start:
|
|
.long 0
|
|
.weak data_start
|
|
data_start = __data_start
|