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Added SIGSEGV diagnostics with 3m

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svn: r12806
This commit is contained in:
Kevin Tew 2008-12-12 19:35:29 +00:00
parent 1af924d8de
commit 653db9dcbe
1 changed files with 14 additions and 1 deletions
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15
src/mzscheme/gc2/sighand.c
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@ -17,8 +17,21 @@
# include <signal.h> # include <signal.h>
void fault_handler(int sn, struct siginfo *si, void *ctx) void fault_handler(int sn, struct siginfo *si, void *ctx)
{ {
if (!designate_modified(si->si_addr)) void *p = si->si_addr;
if (si->si_code != SEGV_ACCERR) { /*SEGV_MAPERR*/
printf("SIGSEGV fault on %p\n", p);
abort(); abort();
}
if (!designate_modified(p)) {
if (si->si_code == SEGV_ACCERR) {
printf("mprotect fault on %p\n", p);
}
else {
printf("?? %i fault on %p\n", si->si_code, p);
}
abort();
}
# define NEED_SIGACTION # define NEED_SIGACTION
# define USE_SIGACTON_SIGNAL_KIND SIGSEGV # define USE_SIGACTON_SIGNAL_KIND SIGSEGV
} }