diff options
Diffstat (limited to 'sysdeps/aarch64/start.S')
| -rw-r--r-- | sysdeps/aarch64/start.S | 94 |
1 files changed, 0 insertions, 94 deletions
diff --git a/sysdeps/aarch64/start.S b/sysdeps/aarch64/start.S deleted file mode 100644 index df1c642c12..0000000000 --- a/sysdeps/aarch64/start.S +++ /dev/null @@ -1,94 +0,0 @@ -/* Copyright (C) 1995-2017 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 - <http://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 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 - /* Set up the other arguments in registers */ - ldr PTR_REG (0), =main - ldr PTR_REG (3), =__libc_csu_init - ldr PTR_REG (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 - - /* 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 |