diff options
Diffstat (limited to 'libc/sysdeps/linux/vax/setjmp.S')
| -rw-r--r-- | libc/sysdeps/linux/vax/setjmp.S | 35 |
1 files changed, 20 insertions, 15 deletions
diff --git a/libc/sysdeps/linux/vax/setjmp.S b/libc/sysdeps/linux/vax/setjmp.S index f81be9330..bdbde4b13 100644 --- a/libc/sysdeps/linux/vax/setjmp.S +++ b/libc/sysdeps/linux/vax/setjmp.S @@ -1,14 +1,19 @@ -# setjmp.S atp. Sept. 2001 -# save regs and info needed for a longjmp + +/* + * setjmp.S atp. Sept. 2001 + * Jan-Benedict Glaw <jbglaw@lug-owl.de> 2006 + * + * Save regs and info needed for a longjmp + */ .globl __sigsetjmp .align 4 __sigsetjmp: - .word 0x0000 # we look after reg saving here - this must - # match longjmp - movl 0x4(%ap), %r0 # our scratch reg - # kenn would probably use movq here. :-) - movl %r1, 0x14(%r0) # save regs + .word 0x0000 /* We look after reg saving here - this */ + /* must match longjmp. */ + movl 0x4(%ap), %r0 /* Our scratch reg */ + /* kenn would probably use movq here. :-) */ + movl %r1, 0x14(%r0) /* save regs */ movl %r2, 0x18(%r0) movl %r3, 0x1c(%r0) movl %r4, 0x20(%r0) @@ -19,16 +24,16 @@ __sigsetjmp: movl %r9, 0x34(%r0) movl %r10, 0x38(%r0) movl %r11, 0x3c(%r0) - # now save our call frame - movl (%fp), (%r0) # condition handler (for VMS emulation) - movl 0x4(%fp), 0x4(%r0) # psw - movl 0x8(%fp), 0x8(%r0) # ap - movl 0xc(%fp), 0xc(%r0) # fp - movl 0x10(%fp), 0x10(%r0) # pc - # call the sigjmp save routine + /* Now save our call frame */ + movl (%fp), (%r0) /* Condition handler (for VMS emulation) */ + movl 0x4(%fp), 0x4(%r0) /* psw */ + movl 0x8(%fp), 0x8(%r0) /* ap */ + movl 0xc(%fp), 0xc(%r0) /* fp */ + movl 0x10(%fp), 0x10(%r0) /* pc */ + /* Call the sigjmp save routine */ pushl 8(%ap) pushl %r0 calls $2, __sigjmp_save - # done + /* Done */ ret |