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[libcpu.aarch64] add rt_backtrace function. (#6982) 

* [libcpu.aarch64] add rt_backtrace function.
This commit is contained in:
Bernard Xiong 2023-02-27 10:04:10 +08:00 committed by GitHub
parent ab7ab19be5
commit f295d3df78
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2 changed files with 12 additions and 0 deletions
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11
libcpu/aarch64/common/backtrace.c
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@ -55,3 +55,14 @@ void backtrace(unsigned long pc, unsigned long lr, unsigned long fp)
walk_unwind(lr, fp);
rt_kprintf("\n");
}
int rt_backtrace(void)
{
unsigned long pc = (unsigned long)backtrace;
unsigned long ra = (unsigned long)__builtin_return_address(0U);
unsigned long fr = (unsigned long)__builtin_frame_address(0U);
backtrace(pc, ra, fr);
return 0;
}
MSH_CMD_EXPORT_ALIAS(rt_backtrace, bt_test, backtrace test);

1
libcpu/aarch64/common/backtrace.h
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@ -18,5 +18,6 @@ struct bt_frame
};
void backtrace(unsigned long pc, unsigned long lr, unsigned long fp);
int rt_backtrace(void);
#endif /*__BACKTRACE_H__*/