diff options
Diffstat (limited to 'libc/sysdeps/linux/vax/_setjmp.S')
| -rw-r--r-- | libc/sysdeps/linux/vax/_setjmp.S | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/libc/sysdeps/linux/vax/_setjmp.S b/libc/sysdeps/linux/vax/_setjmp.S new file mode 100644 index 000000000..17d3160d8 --- /dev/null +++ b/libc/sysdeps/linux/vax/_setjmp.S @@ -0,0 +1,54 @@ + +.globl _setjmp +.align 4 +_setjmp: + .word 0x0040 + + /* push an empty word onto the stack */ + pushl $0 + + /* now copy handler, psw, ap, fp and pc on the stack up one word */ + movl 4(%sp), (%sp) /* copy handler */ + movl 8(%sp), 4(%sp) /* psw */ + movl 12(%sp), 8(%sp) /* ap */ + movl 16(%sp), 12(%sp) /* fp */ + movl 20(%sp), 16(%sp) /* pc */ + movl 24(%sp), 20(%sp) /* r6 from register mask */ + + movl $2, 24(%sp) /* set the number of arguments to 2 */ + movl 32(%sp), 28(%sp) /* copy the jmp_buf */ + movl $1, 32(%sp) /* put the 1 on the stack */ + + addl3 $24, %sp, %ap + movl %sp, %fp + + moval __sigsetjmp, %r0 + addl2 $2, %r0 + pushl %r0 + rsb + +.globl setjmp +.align 4 +setjmp: + .word 0x0040 + pushl $0 + + /* now copy handler, psw, ap, fp and pc on the stack up one word */ + movl 4(%sp), (%sp) + movl 8(%sp), 4(%sp) + movl 12(%sp), 8(%sp) + movl 16(%sp), 12(%sp) + movl 20(%sp), 16(%sp) + movl 24(%sp), 20(%sp) /* r6 from register mask */ + + movl $2, 24(%sp) /* set the number of arguments to 2 */ + movl 32(%sp), 28(%sp) /* copy the jmp_buf */ + movl $0, 32(%sp) /* put the 0 on the stack */ + + addl3 $24, %sp, %ap + movl %sp, %fp + + moval __sigsetjmp, %r0 + addl2 $2, %r0 + pushl %r0 + rsb |