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From: =?unknown-8bit?Q?Gy=F6rgy?= 'nog' Jeney<nog@s...>
Date: Tue Jul 5 17:52:46 CEST 2005
Subject: [openrisc] [or1ksim #137] Decode location of crash
Hi,

ChangeLog:
* Try to find a symbolic name of the location where we crashed.

nog.
-------------- next part --------------
diff -upr --unidirectional-new-file ./cpu/or32/dyn_rec.c /home/nog/or1ksim-ac/cpu/or32/dyn_rec.c
--- ./cpu/or32/dyn_rec.c 2005-07-05 10:27:03.000000000 +0200
+++ /home/nog/or1ksim-ac/cpu/or32/dyn_rec.c 2005-07-05 10:19:24.000000000 +0200
@@ -293,9 +293,10 @@ void dyn_sigsegv_debug(int u, siginfo_t
char filen[18]; /* 18 == strlen("or_page.%08x") + 1 */
void *stack;
int i, j;
- void *trace[10];
+ void *trace[11];
int num_trace;
char **trace_names;
+ struct sigcontext *sigc = dat;

if(!sigsegv_state) {
sigsegv_addr = siginf->si_addr;
@@ -308,8 +309,8 @@ void dyn_sigsegv_debug(int u, siginfo_t
switch(sigsegv_state) {
case 0:
fflush(stderr);
- fprintf(stderr, "Segmentation fault on acces to %p (or address: 0x%"PRIxADDR")\n\n",
- sigsegv_addr, get_pc());
+ fprintf(stderr, "Segmentation fault on acces to %p at 0x%08lx, (or address: 0x%"PRIxADDR")\n\n",
+ sigsegv_addr, sigc->eip, get_pc());
sigsegv_state++;
case 1:
/* Run through the recompiled pages, dumping them to disk as we go */
@@ -339,6 +343,7 @@ void dyn_sigsegv_debug(int u, siginfo_t

num_trace = backtrace(trace, 10);

+ trace[num_trace++] = (void *)sigc->eip;
trace_names = backtrace_symbols(trace, num_trace);

stack = get_sp();
@@ -354,6 +359,8 @@ void dyn_sigsegv_debug(int u, siginfo_t
fprintf(stderr, "\n");
fflush(stderr);
}
+ fprintf(stderr, "Fault at: 0x%08lx <%s>\n", sigc->eip,
+ trace_names[num_trace - 1]);
sigsegv_state++;
case 3:
sim_done();