diff options
Diffstat (limited to 'ports/sysdeps/unix/sysv/linux/aarch64/setcontext.S')
| -rw-r--r-- | ports/sysdeps/unix/sysv/linux/aarch64/setcontext.S | 89 |
1 files changed, 0 insertions, 89 deletions
diff --git a/ports/sysdeps/unix/sysv/linux/aarch64/setcontext.S b/ports/sysdeps/unix/sysv/linux/aarch64/setcontext.S deleted file mode 100644 index d220c41f67..0000000000 --- a/ports/sysdeps/unix/sysv/linux/aarch64/setcontext.S +++ /dev/null @@ -1,89 +0,0 @@ -/* Set current context. - - Copyright (C) 2009-2014 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> -#include "ucontext_i.h" -#include "ucontext-internal.h" - -/* int setcontext (const ucontext_t *ucp) */ - - .text - -ENTRY(__setcontext) - - /* Create a signal frame on the stack: - - fp - lr - ... - sp-> rt_sigframe - */ - - stp x29, x30, [sp, -16]! - cfi_adjust_cfa_offset (16) - cfi_rel_offset (x29, 0) - cfi_rel_offset (x30, 8) - - mov x29, sp - cfi_def_cfa_register (x29) - - /* Allocate space for the sigcontext. */ - mov w3, #((RT_SIGFRAME_SIZE + SP_ALIGN_SIZE) & SP_ALIGN_MASK) - sub sp, sp, x3 - - /* Compute the base address of the ucontext structure. */ - add x1, sp, #RT_SIGFRAME_UCONTEXT - - /* Only ucontext is required in the frame, *copy* it in. */ - -#if UCONTEXT_SIZE % 16 -#error The implementation of setcontext.S assumes sizeof(ucontext_t) % 16 == 0 -#endif - - mov x2, #UCONTEXT_SIZE / 16 -0: - ldp x3, x4, [x0], #16 - stp x3, x4, [x1], #16 - sub x2, x2, 1 - cbnz x2, 0b - - /* rt_sigreturn () -- no arguments, sp points to struct rt_sigframe. */ - mov x8, SYS_ify (rt_sigreturn) - svc 0 - - /* Ooops we failed. Recover the stack */ - - mov sp, x29 - cfi_def_cfa_register (sp) - - ldp x29, x30, [sp], 16 - cfi_adjust_cfa_offset (16) - cfi_restore (x29) - cfi_restore (x30) - b C_SYMBOL_NAME(__syscall_error) - -PSEUDO_END (__setcontext) -weak_alias (__setcontext, setcontext) - -ENTRY(__startcontext) - mov x0, x19 - cbnz x0, __setcontext -1: b HIDDEN_JUMPTARGET(_exit) -END(__startcontext) |