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sonynwzlinux: print debug info to log on crash

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Print the crash info and dump the memory map from /proc/self/maps

Change-Id: I99de32e5e6cca3bf1aca4fa253834ca4ad599fbe
This commit is contained in:
Amaury Pouly 2017-10-01 17:28:42 +02:00
parent a82ebac53a
commit 679ae2d21c
1 changed files with 30 additions and 0 deletions
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30
firmware/target/hosted/sonynwz/system-nwz.c
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@ -90,6 +90,28 @@ static void print_kern_mod_list(void)
uintptr_t *stackbegin;
uintptr_t *stackend;
static void dump_proc_map(void)
{
const char *file = "/proc/self/maps";
printf("Dumping %s...\n", file);
FILE *f = fopen(file, "r");
if(f == NULL)
{
perror("Cannot open file");
return;
}
while(true)
{
char *line = NULL;
size_t n;
if(getline(&line, &n, f) < 0)
break;
printf("> %s", line);
free(line);
}
fclose(f);
}
static void nwz_sig_handler(int sig, siginfo_t *siginfo, void *context)
{
/* safe guard variable - we call backtrace() only on first
@ -98,6 +120,10 @@ static void nwz_sig_handler(int sig, siginfo_t *siginfo, void *context)
*/
static bool triggered = false;
/* dump process maps to log file to ease debugging
* will also print crash info to the log */
dump_proc_map();
lcd_set_backdrop(NULL);
lcd_set_drawmode(DRMODE_SOLID);
lcd_set_foreground(LCD_BLACK);
@ -113,10 +139,14 @@ static void nwz_sig_handler(int sig, siginfo_t *siginfo, void *context)
unsigned long pc = uc->uc_mcontext.arm_pc;
unsigned long sp = uc->uc_mcontext.arm_sp;
printf("%s at %08x\n", strsignal(sig), (unsigned int)pc);
lcd_putsf(0, line++, "%s at %08x", strsignal(sig), pc);
if(sig == SIGILL || sig == SIGFPE || sig == SIGSEGV || sig == SIGBUS || sig == SIGTRAP)
{
printf("address 0x%08x\n", (unsigned int)siginfo->si_addr);
lcd_putsf(0, line++, "address 0x%08x", siginfo->si_addr);
}
if(!triggered)
{