| Summary: | amd_x86 support : unhandled instruction bytes 0x8C 0xE0 0x89 0x45 0xFC 0x8B | ||
|---|---|---|---|
| Product: | [Developer tools] valgrind | Reporter: | jakob <kroeker> |
| Component: | general | Assignee: | Julian Seward <jseward> |
| Status: | REPORTED --- | ||
| Severity: | normal | ||
| Priority: | NOR | ||
| Version: | 3.4.1 | ||
| Target Milestone: | --- | ||
| Platform: | Gentoo Packages | ||
| OS: | Linux | ||
| Latest Commit: | Version Fixed In: | ||
| Bug Depends on: | |||
| Bug Blocks: | 253451 | ||
The assembler code is: 8c e0 mov %fs,%eax 89 45 fc mov %eax,-0x4(%rbp) Jack I don't think the 64-bit x86 instruction set simulator handles %fs or %gs. (Would need to check to be sure). |
Version: 3.4.1 (using KDE 1.2) OS: Linux Hi, I get unhandled instruction bytes error (0x8C 0xE0 0x89 0x45 0xFC 0x8B) from following asm code ( belongs to DMTCP checkpointing library ): asm volatile ("movl %%fs,%0" : "=q" (tlssegreg)); 'fs' and 'tlssegreg' are unsigned ints. Any suggestions? Jack P.S. valgrind is a must-have tool for ordinary developers like me...you did a good job! Reproducible: Always