| 1234567891011121314151617181920212223242526272829303132333435363738394041424344454647 |
- #include <features.h>
- /*
- * longjmp.S atp sept 2001
- * Jan-Benedict Glaw <jbglaw@lug-owl.de> 2006
- *
- * Restore regs and info and jmp back to a previous setjmp
- */
- .globl __longjmp
- .align 4
- __longjmp:
- .word 0x0040 /* This matches setjmp and PLT */
- movl 0x4(%ap), %r0 /* Our scratch reg */
- /* movl $0, %r0 */
- /* movl (%r0), %r0 */
- /* We are going to modify our stack frame */
- /* to the same as that of the setjmp we called earlier */
- movl (%r0), (%fp) /* cond handler */
- movl 0x4(%r0), 0x4(%fp) /* psw */
- movl 0x8(%r0), 0x8(%fp) /* ap */
- movl 0xc(%r0), 0xc(%fp) /* fp */
- movl 0x10(%r0), 0x10(%fp) /* pc */
- /* Restore the regs */
- movl 0x14(%r0), %r1
- movl 0x18(%r0), %r2
- movl 0x1c(%r0), %r3
- movl 0x20(%r0), %r4
- movl 0x24(%r0), %r5
- movl 0x28(%r0), %r6
- movl 0x2c(%r0), %r7
- movl 0x30(%r0), %r8
- movl 0x34(%r0), %r9
- movl 0x38(%r0), %r10
- movl 0x3c(%r0), %r11
- /* Check val and set to 1 if set to zero */
- movl 0x8(%ap), %r0
- tstl %r0
- bneq exit_ok
- movl $0x1, %r0
- exit_ok:
- ret
- .size __longjmp,.-__longjmp
- libc_hidden_def(__longjmp)
|
