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Compensate for the way that _setjmp aligns the start of jmp_buf.

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This commit is contained in:
Doug Rabson 2001-10-26 08:26:45 +00:00
parent 3f2d9117d4
commit fc5ccf726e
2 changed files with 23 additions and 5 deletions
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14
lib/libc/ia64/gen/setjmp.S
View File

@ -46,10 +46,14 @@
ENTRY(setjmp, 1) ENTRY(setjmp, 1)
alloc loc0=ar.pfs,1,2,3,0 alloc loc0=ar.pfs,1,2,3,0
mov loc1=rp mov loc1=rp
//
// Compensate for the pointer twiddling that setjmp does.
//
dep r14=r0,r32,0,4
;; ;;
mov out0=1 // how = SIG_BLOCK mov out0=1 // how = SIG_BLOCK
mov out1=0 // set = NULL mov out1=0 // set = NULL
add out2=J_SIG0,in0 // oset = &jb[J_SIG0] add out2=J_SIG0+0x10,r14 // oset = &jb[J_SIG0]
br.call.sptk.few rp=__sys_sigprocmask br.call.sptk.few rp=__sys_sigprocmask
;; ;;
mov rp=loc1 mov rp=loc1
@ -65,9 +69,13 @@ END(setjmp)
ENTRY(__longjmp, 2) ENTRY(__longjmp, 2)
alloc loc0=ar.pfs,2,2,3,0 alloc loc0=ar.pfs,2,2,3,0
mov loc1=rp mov loc1=rp
;; //
// Compensate for the pointer twiddling that setjmp does.
//
dep r14=r0,r32,0,4
;;
mov out0=3 // how = SIG_SETMASK mov out0=3 // how = SIG_SETMASK
add out1=J_SIG0,in0 // set = &jb[J_SIG0] add out1=J_SIG0+0x10,r14 // set = &jb[J_SIG0]
mov out2=0 // oset = NULL mov out2=0 // oset = NULL
br.call.sptk.few rp=__sys_sigprocmask br.call.sptk.few rp=__sys_sigprocmask
;; ;;

14
lib/libc/ia64/gen/sigsetjmp.S
View File

@ -45,7 +45,12 @@
*/ */
ENTRY(sigsetjmp, 2) ENTRY(sigsetjmp, 2)
add r14=J_SIGMASK,in0 // place to save mask //
// Compensate for the pointer twiddling that setjmp does.
//
dep r14=r0,r32,0,4
;;
add r14=J_SIGMASK+0x10,r14 // place to save mask
;; ;;
st8 [r14]=in1 // save mask value st8 [r14]=in1 // save mask value
cmp.ne p6,p7=0,in1 // save signal state? cmp.ne p6,p7=0,in1 // save signal state?
@ -55,7 +60,12 @@ END(sigsetjmp)
WEAK_ALIAS(siglongjmp,__siglongjmp) WEAK_ALIAS(siglongjmp,__siglongjmp)
ENTRY(__siglongjmp, 2) ENTRY(__siglongjmp, 2)
add r14=J_SIGMASK,in0 // address of mask value //
// Compensate for the pointer twiddling that setjmp does.
//
dep r14=r0,r32,0,4
;;
add r14=J_SIGMASK+0x10,r14 // address of mask value
;; ;;
ld8 r14=[r14] ld8 r14=[r14]
;; ;;