diff options
| author | Antonio Niño Díaz <antonio.ninodiaz@arm.com> | 2019-02-11 09:58:53 +0000 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-02-11 09:58:53 +0000 |
| commit | 873e394b3bf93214a441f9f98237b58fbbea55aa (patch) | |
| tree | 9502a299d22c782c284d604a5fada651c2680c91 /lib/aarch64 | |
| parent | 9beee98acc6af787b4e56a2b34a6545b0c36f829 (diff) | |
| parent | 70b0f2789e93f253bec5cbd2986d0de023c1bdf4 (diff) | |
Merge pull request #1810 from antonio-nino-diaz-arm/an/setjmp
Make setjmp/longjmp compliant with the C standard and move them to libc
Diffstat (limited to 'lib/aarch64')
| -rw-r--r-- | lib/aarch64/setjmp.S | 65 |
1 files changed, 0 insertions, 65 deletions
diff --git a/lib/aarch64/setjmp.S b/lib/aarch64/setjmp.S deleted file mode 100644 index 9060cb75..00000000 --- a/lib/aarch64/setjmp.S +++ /dev/null @@ -1,65 +0,0 @@ -/* - * Copyright (c) 2018, ARM Limited and Contributors. All rights reserved. - * - * SPDX-License-Identifier: BSD-3-Clause - */ - -#include <asm_macros.S> -#include <assert_macros.S> -#include <setjmp.h> - - .globl setjmp - .globl longjmp - -/* - * int setjmp(struct jmpbuf *buf); - * - * Sets a jump point in the buffer specified in x0. Returns 0 to the caller when - * when setting up the jump, and 1 when returning from the jump. - */ -func setjmp - mov x7, sp - - stp x19, x20, [x0, #JMP_CTX_X19] - stp x21, x22, [x0, #JMP_CTX_X21] - stp x23, x24, [x0, #JMP_CTX_X23] - stp x25, x26, [x0, #JMP_CTX_X25] - stp x27, x28, [x0, #JMP_CTX_X27] - stp x29, x30, [x0, #JMP_CTX_X29] - stp x7, xzr, [x0, #JMP_CTX_SP] - - mov x0, #0 - ret -endfunc setjmp - - -/* - * void longjmp(struct jmpbuf *buf); - * - * Return to a jump point setup by setjmp() - */ -func longjmp - ldp x7, xzr, [x0, #JMP_CTX_SP] - -#if ENABLE_ASSERTIONS - /* - * Since we're unwinding the stack, assert that the stack being reset to - * is shallower. - */ - mov x19, sp - cmp x7, x19 - ASM_ASSERT(ge) -#endif - - ldp x19, x20, [x0, #JMP_CTX_X19] - ldp x21, x22, [x0, #JMP_CTX_X21] - ldp x23, x24, [x0, #JMP_CTX_X23] - ldp x25, x26, [x0, #JMP_CTX_X25] - ldp x27, x28, [x0, #JMP_CTX_X27] - ldp x29, x30, [x0, #JMP_CTX_X29] - - mov sp, x7 - - mov x0, #1 - ret -endfunc longjmp |