1 FILE_LICENCE ( GPL2_OR_LATER_OR_UBDL )
6 /* Must match jmp_buf structure layout */
19 * Save stack context for non-local goto
23 /* Save return address */
25 movq %rax, env_retaddr(%rdi)
26 /* Save stack pointer */
27 movq %rsp, env_stack(%rdi)
28 /* Save other registers */
29 movq %rbx, env_rbx(%rdi)
30 movq %rbp, env_rbp(%rdi)
31 movq %r12, env_r12(%rdi)
32 movq %r13, env_r13(%rdi)
33 movq %r14, env_r14(%rdi)
34 movq %r15, env_r15(%rdi)
35 /* Return 0 when returning as setjmp() */
38 .size setjmp, . - setjmp
41 * Non-local jump to a saved stack context
45 /* Get result in %rax */
47 /* Force result to non-zero */
51 1: /* Restore stack pointer */
52 movq env_stack(%rdi), %rsp
53 /* Restore other registers */
54 movq env_rbx(%rdi), %rbx
55 movq env_rbp(%rdi), %rbp
56 movq env_r12(%rdi), %r12
57 movq env_r13(%rdi), %r13
58 movq env_r14(%rdi), %r14
59 movq env_r15(%rdi), %r15
60 /* Replace return address on the new stack */
61 popq %rcx /* discard */
62 pushq env_retaddr(%rdi)
63 /* Return to setjmp() caller */
65 .size longjmp, . - longjmp