Hello everyone, I am pretty new to both Valgrind and Android -- recently I am working on using Valgrind to check the running of some Android apps. I have successfully built Valgrind as instructed in the README and pushed it into my emulator. I used "android setprop wrap...." to redirect the app to be launched through Valgrind, however, I am getting the following error for all the apps launched by Valgrind:
================from the logcat ================================= I/val.sh ( 1259): disInstr(thumb): unhandled instruction: 0xEEBA 0x7BEF I/val.sh ( 1259): ==1260== valgrind: Unrecognised instruction at address 0xcab86ad. I/val.sh ( 1259): ==1260== at 0xCAB86AC: ??? (in /system/lib/libjavacore.so) I/val.sh ( 1259): ==1260== Your program just tried to execute an instruction that Valgrind I/val.sh ( 1259): ==1260== 1. Your program has a bug and erroneously jumped to a non-code I/val.sh ( 1259): ==1260== location. If you are running Memcheck and you just saw a I/val.sh ( 1259): ==1260== warning about a bad jump, it's probably your program's fault. I/val.sh ( 1259): ==1260== 2. The instruction is legitimate but Valgrind doesn't handle it, I/val.sh ( 1259): ==1260== i.e. it's Valgrind's fault. If you think this is the case or I/val.sh ( 1259): ==1260== you are not sure, please let us know and we'll try to fix it. I/val.sh ( 1259): ==1260== Either way, Valgrind will now raise a SIGILL signal which will I/val.sh ( 1259): ==1260== probably kill your program. I/val.sh ( 1259): ==1260== Conditional jump or move depends on uninitialised value(s) I/val.sh ( 1259): ==1260== at 0x4005224: ??? (in /system/bin/linker) I/val.sh ( 1259): ==1260== F/libc ( 1260): Fatal signal 4 (SIGILL) at 0x0cadd8f0 (code=1), thread 1260 (m.gstar.wponlyn) I/val.sh ( 1259): disInstr(thumb): unhandled instruction: 0xEEBA 0x7BEF I/val.sh ( 1259): ==1260== valgrind: Unrecognised instruction at address 0xcab86ad. I/val.sh ( 1259): ==1260== valgrind: Unrecognised instruction at address 0xcab86ad. I/val.sh ( 1259): ==1260== at 0xCAB86AC: ??? (in /system/lib/libjavacore.so) I/val.sh ( 1259): ==1260== Your program just tried to execute an instruction that Valgrind I/val.sh ( 1259): ==1260== did not recognise. There are two possible reasons for this. I/val.sh ( 1259): ==1260== 1. Your program has a bug and erroneously jumped to a non-code I/val.sh ( 1259): ==1260== location. If you are running Memcheck and you just saw a I/val.sh ( 1259): ==1260== warning about a bad jump, it's probably your program's fault. I/val.sh ( 1259): ==1260== 2. The instruction is legitimate but Valgrind doesn't handle it, I/val.sh ( 1259): ==1260== i.e. it's Valgrind's fault. If you think this is the case or I/val.sh ( 1259): ==1260== you are not sure, please let us know and we'll try to fix it. I/val.sh ( 1259): ==1260== Either way, Valgrind will now raise a SIGILL signal which will I/val.sh ( 1259): ==1260== probably kill your program. I/val.sh ( 1259): ==1260== I/val.sh ( 1259): ==1260== Process terminating with default action of signal 4 (SIGILL) I/val.sh ( 1259): ==1260== Illegal opcode at address 0xCAB86AD I/val.sh ( 1259): ==1260== Process terminating with default action of signal 4 (SIGILL) I/val.sh ( 1259): ==1260== Illegal opcode at address 0xCAB86AD I/val.sh ( 1259): ==1260== at 0xCAB86AC: ??? (in /system/lib/libjavacore.so) I/val.sh ( 1259): ==1260== I/val.sh ( 1259): ==1260== HEAP SUMMARY: I/val.sh ( 1259): ==1260== in use at exit: 344,162 bytes in 842 blocks I/val.sh ( 1259): ==1260== total heap usage: 3,895 allocs, 3,053 frees, 2,512,927 bytes allocated I/val.sh ( 1259): ==1260== D/dalvikvm( 1210): GC_FOR_ALLOC freed 422K, 8% free 5276K/5724K, paused 591ms, total 802ms I/val.sh ( 1259): ==1260== LEAK SUMMARY: I/val.sh ( 1259): ==1260== definitely lost: 2,618 bytes in 66 blocks I/val.sh ( 1259): ==1260== indirectly lost: 26,528 bytes in 66 blocks I/val.sh ( 1259): ==1260== possibly lost: 7,526 bytes in 180 blocks I/val.sh ( 1259): ==1260== still reachable: 307,490 bytes in 530 blocks I/val.sh ( 1259): ==1260== suppressed: 0 bytes in 0 blocks I/val.sh ( 1259): ==1260== Rerun with --leak-check=full to see details of leaked memory I/val.sh ( 1259): ==1260== I/val.sh ( 1259): ==1260== Use --track-origins=yes to see where uninitialised values come from I/val.sh ( 1259): ==1260== ERROR SUMMARY: 9 errors from 3 contexts (suppressed: 0 from 0) ============================================================ after this point, the app is killed.... val.sh is the script that setprop used to launch app from valgrind. Can anyone help me out with this weird behavior? Thanks! ------------------------------------------------------------------------------ Android is increasing in popularity, but the open development platform that developers love is also attractive to malware creators. Download this white paper to learn more about secure code signing practices that can help keep Android apps secure. http://pubads.g.doubleclick.net/gampad/clk?id=65839951&iu=/4140/ostg.clktrk _______________________________________________ Valgrind-users mailing list Valgrind-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/valgrind-users
