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Add .register directives for gcc3.

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Adapt to jmpbuf no longer being a ucontext_t.
Call abort if longjmperror returns.
This commit is contained in:
Jake Burkholder 2001-12-29 06:37:33 +00:00
parent cafb96f2df
commit 5b3fb165d9
1 changed files with 11 additions and 6 deletions
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17
lib/libc/sparc64/gen/_setjmp.S
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@ -54,6 +54,9 @@
#include "assym.s"
.register %g2,#ignore
.register %g3,#ignore
/*
* C library -- _setjmp, _longjmp
*
@ -66,9 +69,9 @@
*/
ENTRY(_setjmp)
stx %sp, [%o0 + UC_MC + MC_O6]
stx %o7, [%o0 + UC_MC + MC_O7]
stx %fp, [%o0 + UC_MC + MC_G1]
stx %sp, [%o0 + _JB_SP]
stx %o7, [%o0 + _JB_PC]
stx %fp, [%o0 + _JB_FP]
retl
clr %o0
END(_setjmp)
@ -77,16 +80,18 @@ ENTRY(_longjmp)
mov 1, %g1
movrnz %o1, %o1, %g1 ! compute v ? v : 1
mov %o0, %g2
ldx [%g2 + UC_MC + MC_G1], %g3 ! fetch callers frame
ldx [%g2 + _JB_FP], %g3 ! fetch callers frame
1: cmp %fp, %g3 ! compare against desired frame
bl,a 1b ! if below,
restore ! pop frame and loop
be,a 2f ! if there,
ldx [%g2 + UC_MC + MC_O6], %o0 ! fetch return %sp
ldx [%g2 + _JB_SP], %o0 ! fetch return %sp
.Lbotch:
call CNAME(longjmperror)
nop
call CNAME(abort)
nop
illtrap
2: cmp %o0, %sp ! %sp must not decrease
@ -94,7 +99,7 @@ ENTRY(_longjmp)
mov %o0, %sp ! it is OK, put it in place
b,a .Lbotch
nop
3: ldx [%g2 + UC_MC + MC_O7], %o7 ! fetch return address
3: ldx [%g2 + _JB_PC], %o7 ! fetch return address
retl
mov %g1, %o0 ! return v ? v : 1;
END(_longjmp)