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sched/backtrace: Dump the complete stack regardless the depth

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Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao
2021-12-24 15:38:14 +08:00
committed by archer
parent 9eecd4c5e2
commit dd942f0b04
12 changed files with 162 additions and 104 deletions
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libs/libc/sched/sched_dumpstack.c
+32 -28
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@@ -29,7 +29,6 @@
#include <stdio.h>
#include <syslog.h>
#include <execinfo.h>
/****************************************************************************
* Pre-processor Definitions
@@ -54,38 +53,43 @@
void sched_dumpstack(pid_t tid)
{
FAR void *address[DUMP_DEPTH];
int size = DUMP_DEPTH;
int skip;
for (skip = 0; size == DUMP_DEPTH; skip += size)
{
FAR void *address[DUMP_DEPTH];
#ifndef CONFIG_ALLSYMS
const char *format = " %0*p";
char line[DUMP_LINESZ + 1];
int ret = 0;
const char *format = " %0*p";
char line[DUMP_LINESZ + 1];
int ret = 0;
#endif
int size;
int i;
int i;
size = sched_backtrace(tid, address, DUMP_DEPTH);
if (size <= 0)
{
return;
}
#ifndef CONFIG_ALLSYMS
for (i = 0; i < size; i++)
{
ret += snprintf(line + ret, sizeof(line) - ret,
format, DUMP_WIDTH, address[i]);
if (i == size - 1 || ret % DUMP_LINESZ == 0)
size = sched_backtrace(tid, address, DUMP_DEPTH, skip);
if (size <= 0)
{
syslog(LOG_EMERG, "backtrace|%2d:%s\n", tid, line);
ret = 0;
break;
}
#ifndef CONFIG_ALLSYMS
for (i = 0; i < size; i++)
{
ret += snprintf(line + ret, sizeof(line) - ret,
format, DUMP_WIDTH, address[i]);
if (i == size - 1 || ret % DUMP_LINESZ == 0)
{
syslog(LOG_EMERG, "backtrace|%2d:%s\n", tid, line);
ret = 0;
}
}
}
#else
syslog(LOG_EMERG, "backtrace:\n");
for (i = 0; i < size; i++)
{
syslog(LOG_EMERG, "[%2d] [<%p>] %pS\n",
tid, address[i], address[i]);
}
syslog(LOG_EMERG, "backtrace:\n");
for (i = 0; i < size; i++)
{
syslog(LOG_EMERG, "[%2d] [<%p>] %pS\n",
tid, address[i], address[i]);
}
#endif
}
}