https://bugs.kde.org/show_bug.cgi?id=465176
Bug ID: 465176
Summary: disInstr(thumb): unhandled instruction: 0xF2AD 0x0440
Classification: Developer tools
Product: valgrind
Version: 3.20.0
Platform: Other
OS: Other
Status: REPORTED
Severity: normal
Priority: NOR
Component: memcheck
Assignee: jsew...@acm.org
Reporter: dark_foo...@yahoo.fr
Target Milestone: ---
SUMMARY
***
disInstr(thumb): unhandled instruction: 0xF2AD 0x0440
==4476== valgrind: Unrecognised instruction at address 0xa8a2a49.
==4476== at 0xA8A2A48: ???
==4476== Your program just tried to execute an instruction that Valgrind
==4476== did not recognise. There are two possible reasons for this.
==4476== 1. Your program has a bug and erroneously jumped to a non-code
==4476== location. If you are running Memcheck and you just saw a
==4476== warning about a bad jump, it's probably your program's fault.
==4476== 2. The instruction is legitimate but Valgrind doesn't handle it,
==4476== i.e. it's Valgrind's fault. If you think this is the case or
==4476== you are not sure, please let us know and we'll try to fix it.
==4476== Either way, Valgrind will now raise a SIGILL signal which will
==4476== probably kill your program.
==4476==
==4476== Process terminating with default action of signal 4 (SIGILL)
==4476== Illegal opcode at address 0xA8A2A49
==4476== at 0xA8A2A48: ???
==4476== (action on fatal signal) vgdb me ...
***
STEPS TO REPRODUCE
Hello, I am running a webkit for wayland on architecture ARM 32 bits with
libc-2.24 / GCC 6.3
this message appears: disInstr(thumb): unhandled instruction: 0xF2AD 0x0440
and valgrind stops
Is there anything I could add to help for the issue?
If you have patches, I am ready to test.
SOFTWARE/OS VERSIONS
Linux : kernel 4.9 embedded system
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