alexeikh / android-ndk-backtrace-test Goto Github PK

I use both LIBUNWIND_WITH_REGISTERS_METHOD & UNWIND_BACKTRACE_WITH_REGISTERS_METHOD to get backtrace, but the pc addr is a little difference with tombstone file, the offset is typically 4 or 2 before I reset the Thumb bit.

I guess there is some difference between libunwind.so & libunwind_llvm.so, do you know why?

Here is mine:
backtrace:
06-17 14:31:39.584 9852 9784 D NativeCrashHandler: #00 pc 0001761c /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (+-487340516)
06-17 14:31:39.584 9852 9784 D NativeCrashHandler: #1 pc 00017610 /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (crash5()+7)
06-17 14:31:39.584 9852 9784 D NativeCrashHandler: #02 pc 0001762a /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (crash4()+7)
06-17 14:31:39.584 9852 9784 D NativeCrashHandler: #03 pc 00017634 /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (crash3()+7)
06-17 14:31:39.584 9852 9784 D NativeCrashHandler: #04 pc 0001763e /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (crash2()+7)
06-17 14:31:39.584 9852 9784 D NativeCrashHandler: #05 pc 00017650 /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (crash1(void*)+15)
06-17 14:31:39.584 9852 9784 D NativeCrashHandler: #06 pc 00047094 /system/lib/libc.so (+-334712684)
06-17 14:31:39.584 9852 9784 D NativeCrashHandler: #07 pc 00019bde /system/lib/libc.so (+-334898210)

Android tombstone:
backtrace:
06-17 14:31:54.809 10389 10389 F DEBUG : #00 pc 0001761c /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so
06-17 14:31:54.809 10389 10389 F DEBUG : #1 pc 0001760d /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (_Z6crash5v+4)
06-17 14:31:54.809 10389 10389 F DEBUG : #02 pc 00017627 /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (_Z6crash4v+4)
06-17 14:31:54.809 10389 10389 F DEBUG : #03 pc 00017631 /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (_Z6crash3v+4)
06-17 14:31:54.809 10389 10389 F DEBUG : #04 pc 0001763b /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (_Z6crash2v+4)
06-17 14:31:54.809 10389 10389 F DEBUG : #05 pc 0001764d /data/app/com.smile.gifmaker-1/lib/arm/libnative-crash-handler.so (_Z6crash1Pv+12)
06-17 14:31:54.809 10389 10389 F DEBUG : #06 pc 00047093 /system/lib/libc.so (_ZL15__pthread_startPv+22)
06-17 14:31:54.809 10389 10389 F DEBUG : #07 pc 00019bdd /system/lib/libc.so (__start_thread+6)

Thank you very much!