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A new panic that makes processes exit with PM knowing about it, instead

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of sys_exit, so that PM functions (e.g. findproc) keep working properly,
and RS finds out about process deaths.
This commit is contained in:
Ben Gras 2005-10-17 13:19:22 +00:00
parent 683322d997
commit c79574aba4
1 changed files with 14 additions and 3 deletions
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17
lib/sysutil/panic.c
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@ -1,3 +1,5 @@
#include <stdlib.h>
#include "sysutil.h" #include "sysutil.h"
/*===========================================================================* /*===========================================================================*
@ -13,6 +15,7 @@ int num; /* number to go with format string */
* value of a defined constant. * value of a defined constant.
*/ */
message m; message m;
void (*suicide)(void);
if (NULL != who && NULL != mess) { if (NULL != who && NULL != mess) {
if (num != NO_NUM) { if (num != NO_NUM) {
printf("Panic in %s: %s: %d\n", who, mess, num); printf("Panic in %s: %s: %d\n", who, mess, num);
@ -21,8 +24,16 @@ int num; /* number to go with format string */
} }
} }
m.PR_PROC_NR = SELF; /* Exit nicely through PM. */
_taskcall(SYSTASK, SYS_EXIT, &m); exit(1);
/* never reached */
/* If exiting nicely through PM fails for some reason, try to
* commit suicide. E.g., message to PM might fail due to deadlock.
*/
suicide = (void (*)(void)) -1;
suicide();
/* If committing suicide fails for some reason, hang. */
for(;;) { }
} }