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more nearly correct interface code for signals on linux 

SVN=124021
This commit is contained in:
Rob Pike 2008-06-21 17:28:37 -07:00
parent aeb43984ec
commit 12c2864e4f
1 changed files with 4 additions and 5 deletions
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9
src/runtime/rt1_amd64_linux.c
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@ -29,8 +29,9 @@ typedef struct sigaction {
void (*sa_handler)(int32);
void (*sa_sigaction)(int32, siginfo *, void *);
} u; /* signal handler */
uint8 sa_mask[128]; /* signal mask to apply. 128? are they MORONS? */
int32 sa_flags; /* see signal options below */
uint8 sa_mask[2]; /* signal mask to apply. BUG: 2 is a guess */
void (*sa_restorer) (void); /* unused here; needed to return from trap? */
} sigaction;
void
@ -62,12 +63,10 @@ initsig(void)
{
int32 i;
a.u.sa_sigaction = (void*)sigtramp;
a.sa_flags = 1|2|4|0x10000000|0x20000000|0x40000000|0x80000000;
//a.sa_flags |= SA_SIGINFO;
a.sa_flags = ~0; /* BUG: why is this needed? */
a.sa_flags |= 0x04; /* SA_SIGINFO */
for(i=0; i<sizeof(a.sa_mask); i++)
a.sa_mask[i] = 0xFF;
//a.sa_mask[1] = (1 << (11-1));
for(i = 0; i <NSIG; i++)
if(sigtab[i].catch){
sys_rt_sigaction(i, &a, (void*)0, 8);