DR debugging and logging - internal tool crash
Mah
<log dir=/home/ma843/janus-asan/janus/../external/DynamoRIO-Linux-7.0.0-RC1//bin64/../logs/malloc-diff.2378561.00000000>
<Starting application /auto/homes/ma843/Janus-private/tests/security/bin-clang++/malloc-diff (2378561)>
<Paste into GDB to debug DynamoRIO clients:
set confirm off
add-symbol-file '/home/ma843/janus-asan/janus/../lib/libjasan.so' 0x0000000072007890
add-symbol-file '/auto/homes/ma843/janus-asan/external/DynamoRIO-Linux-7.0.0-RC1/lib64/debug/libdynamorio.so' 0x00007f25aa4c6a68
add-symbol-file '/lib/x86_64-linux-gnu/libstdc++.so.6' 0x00007f25aa145160
add-symbol-file '/lib/x86_64-linux-gnu/libm.so.6' 0x00007f25aa3253c0
add-symbol-file '/lib/x86_64-linux-gnu/libc.so.6' 0x00007f25a9ce6630
add-symbol-file '/usr/lib64/ld-linux-x86-64.so.2' 0x00007f25aa2e8100
add-symbol-file '/lib/x86_64-linux-gnu/libgcc_s.so.1' 0x00007f25aa2ce5e0
>
<Initial options = -no_dynamic_options -loglevel 4 -checklevel 0 -client_lib '/home/ma843/janus-asan/janus/../lib/libjasan.so;0;"@/home/ma843/Janus-private/tests/security/bin-clang++/malloc-diff.jrs" "@1" "@0"' -code_api -stack_size 56K -max_elide_jmp 0 -max_elide_call 0 -early_inject -emulate_brk -no_inline_ignored_syscalls -native_exec_default_list '' -no_native_exec_managed_code -no_indcall2direct >
<spurious rep/repne prefix @0x00007f25aa469df0 (f3 0f 1e fa): >
<Invalid opcode encountered>
<(1+x) Handling our fault in a TRY at 0x00007f25aa70047c>
<Application /auto/homes/ma843/Janus-private/tests/security/bin-clang++/malloc-diff (2378561). Tool internal crash at PC 0x000000003cf44728. Please report this at your tool's issue tracker. Program aborted.
Received SIGSEGV at unknown pc 0x000000003cf44728 in thread 2378561
Base: 0x00007f25aa499000
Registers:eax=0x00000000000000ee ebx=0x00007ffcdbc76280 ecx=0x0000000000000000 edx=0x0000000000000000
esi=0x000000000000004a edi=0x00007f25aa28b030 esp=0x00007ffcdbc75878 ebp=0x00007ffcdbc762c8
r8 =0x0000000000000000 r9 =0x0000000000000000 r10=0x0000000000000008 r11=0x0000000000000246
r12=0x00007ffcdbc762c0 r13=0x00007ffcdbc76418 r14=0x00007f25aa497190 r15=0x0000000000000000
eflags=0x0000000000010246
version 7.0.0, build 1
-no_dynamic_options -loglevel 4 -checklevel 0 -client_lib '/home/ma843/janus-asan/janus/../lib/libjasan.so;0;"@/home/ma843/Janus-private/tests/security/bin-clang++/malloc-diff.jrs" "@1" "@0"' -code_api -stack_size 56K -max_elide_jmp 0 -max_elide_call 0 -early_inject -emulate_brk -no_inline_ignored_syscalls -native_exec_d
0x00007ffcdbc762c8 0x0000000000000000>
I have also attached the log file (compressed).
The <Invalid opcode encountered> error also shows when run without a client, but DR doesn't crash.
Also, what are the labels L0 and L1 in the log file. I understand that L3 is non-meta( application) instruction and m4 is meta instruction.
