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sched/backtrace: There is a bug in sched_backtrace().

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The return value of sched_backtrace is not saved.

Signed-off-by: wangzhi16 <wangzhi16@xiaomi.com>
This commit is contained in:
wangzhi16
2024-12-03 20:58:01 +08:00
committed by GUIDINGLI
parent d5ed98c11f
commit 635f5bf9ef
1 changed files with 8 additions and 2 deletions
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sched/sched/sched_backtrace.c
+8 -2
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@@ -44,6 +44,10 @@ struct backtrace_arg_s
int size;
int skip;
bool need_restore;
/* The return value of up_backtrace() */
int stacksize;
};
/****************************************************************************
@@ -76,7 +80,9 @@ static int sched_backtrace_handler(FAR void *cookie)
leave_critical_section(flags);
return up_backtrace(tcb, arg->buffer, arg->size, arg->skip);
arg->stacksize = up_backtrace(tcb, arg->buffer, arg->size, arg->skip);
return OK;
}
#endif
@@ -133,7 +139,7 @@ int sched_backtrace(pid_t tid, FAR void **buffer, int size, int skip)
arg.skip = skip;
ret = nxsched_smp_call_single(tcb->cpu,
sched_backtrace_handler,
&arg);
&arg) < 0 ? 0 : arg.stacksize;
}
else
#endif