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libc: Prefix the address with 0 to the specified width in sched_dumpstack

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Signed-off-by: Xiang Xiao <xiaoxiang@xiaomi.com>
This commit is contained in:
Xiang Xiao 2021-12-26 11:40:32 +08:00 committed by archer
parent 7f2c5be07a
commit 9eecd4c5e2
1 changed files with 10 additions and 7 deletions
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15
libs/libc/sched/sched_dumpstack.c
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@ -31,12 +31,14 @@
#include <syslog.h>
#include <execinfo.h>
#define DUMP_FORMAT "%*p"
#define DUMP_WIDTH (int)(2 * sizeof(FAR void *) + 3)
/****************************************************************************
* Pre-processor Definitions
****************************************************************************/
#define DUMP_DEPTH 16
#define DUMP_NITEM 8
#define DUMP_LINESIZE (DUMP_NITEM * DUMP_WIDTH)
#define DUMP_WIDTH (int)(2 * sizeof(FAR void *) + 2)
#define DUMP_LINESZ (DUMP_NITEM * (DUMP_WIDTH + 1))
/****************************************************************************
* Public Functions
@ -54,7 +56,8 @@ void sched_dumpstack(pid_t tid)
{
FAR void *address[DUMP_DEPTH];
#ifndef CONFIG_ALLSYMS
char line[DUMP_LINESIZE + 1];
const char *format = " %0*p";
char line[DUMP_LINESZ + 1];
int ret = 0;
#endif
int size;
@ -70,8 +73,8 @@ void sched_dumpstack(pid_t tid)
for (i = 0; i < size; i++)
{
ret += snprintf(line + ret, sizeof(line) - ret,
DUMP_FORMAT, DUMP_WIDTH, address[i]);
if (i == size - 1 || ret % DUMP_LINESIZE == 0)
format, DUMP_WIDTH, address[i]);
if (i == size - 1 || ret % DUMP_LINESZ == 0)
{
syslog(LOG_EMERG, "backtrace|%2d:%s\n", tid, line);
ret = 0;