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probeset() was trashing its arguments; fix from Chuck Cranor.

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pk 1995-04-19 12:49:27 +00:00
parent 5bc2528656
commit bd52caa035
1 changed files with 6 additions and 6 deletions
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12
sys/arch/sparc/sparc/locore.s
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@ -3838,14 +3838,14 @@ ENTRY(probeget)
*/
ENTRY(probeset)
! %o0 = addr, %o1 = (1,2,4), %o2 = val
set KERNBASE, %o2
cmp %o0, %o2 ! if addr < KERNBASE
set KERNBASE, %o3
cmp %o0, %o3 ! if addr < KERNBASE
blu Lfsbadaddr ! go return error
EMPTY
sethi %hi(_cpcb), %o2
ld [%o2 + %lo(_cpcb)], %o2 ! cpcb->pcb_onfault = Lfserr;
sethi %hi(_cpcb), %o3
ld [%o3 + %lo(_cpcb)], %o3 ! cpcb->pcb_onfault = Lfserr;
set Lfserr, %o5
st %o5, [%o2 + PCB_ONFAULT]
st %o5, [%o3 + PCB_ONFAULT]
btst 1, %o1
bnz,a 0f ! if (len & 1)
stb %o2, [%o0] ! *(char *)addr = value;
@ -3857,7 +3857,7 @@ ENTRY(probeset)
st %o2, [%o0] ! *(int *)addr = value;
0: clr %o0 ! made it, clear onfault and return 0
retl
st %g0, [%o2 + PCB_ONFAULT]
st %g0, [%o3 + PCB_ONFAULT]
/*
* int xldcontrolb(caddr_t, pcb)