diff options
Diffstat (limited to 'libc/sysdeps/linux/vax/__longjmp.S')
| -rw-r--r-- | libc/sysdeps/linux/vax/__longjmp.S | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/vax/__longjmp.S b/libc/sysdeps/linux/vax/__longjmp.S new file mode 100644 index 000000000..61b37a3b9 --- /dev/null +++ b/libc/sysdeps/linux/vax/__longjmp.S @@ -0,0 +1,47 @@ +#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) + |