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List: kde-bugs-dist
Subject: [Bug 310845] Application being checked generates illegal instruction
From: <tim.gallagher () gatech ! edu>
Date: 2012-11-29 0:10:18
Message-ID: bug-310845-17878-GHzU5A3VtX () http ! bugs ! kde ! org/
[Download RAW message or body]
https://bugs.kde.org/show_bug.cgi?id=310845
--- Comment #5 from tim.gallagher@gatech.edu ---
I've never disassembled anything before, so I'm sorry if this isn't what you
needed (let me know and I'll adjust it):
> objdump -t /opt/intel/2011.sp1.1/composer_xe_2011_sp1.7.256/compiler/lib/intel64/libirc.so \
> | grep intel_sse4_strrchr
0000000000018d30 g F .text 0000000000000040
__intel_sse4_strrchr
> objdump -d -f --start-address=0x0000000000018d30 --stop-address=0x0000000000018d70 \
> /opt/intel/2011.sp1.1/composer_xe_2011_sp1.7.256/compiler/lib/intel64/libirc.so
/opt/intel/2011.sp1.1/composer_xe_2011_sp1.7.256/compiler/lib/intel64/libirc.so:
file format elf64-x86-64
architecture: i386:x86-64, flags 0x00000150:
HAS_SYMS, DYNAMIC, D_PAGED
start address 0x0000000000007040
Disassembly of section .text:
0000000000018d30 <__intel_sse4_strrchr>:
18d30: 56 push %rsi
18d31: 66 0f 38 17 c9 ptest %xmm1,%xmm1
18d36: 74 21 je 18d59 <__intel_sse4_strrchr+0x29>
18d38: 48 83 c2 10 add $0x10,%rdx
18d3c: 66 0f 3a 63 0a 42 pcmpistri $0x42,(%rdx),%xmm1
18d42: 74 09 je 18d4d <__intel_sse4_strrchr+0x1d>
18d44: 73 f2 jae 18d38 <__intel_sse4_strrchr+0x8>
18d46: 89 c8 mov %ecx,%eax
18d48: 48 03 c2 add %rdx,%rax
18d4b: eb eb jmp 18d38 <__intel_sse4_strrchr+0x8>
18d4d: 73 05 jae 18d54 <__intel_sse4_strrchr+0x24>
18d4f: 89 c8 mov %ecx,%eax
18d51: 48 03 c2 add %rdx,%rax
18d54: 48 83 c4 08 add $0x8,%rsp
18d58: c3 retq
18d59: 48 89 d0 mov %rdx,%rax
18d5c: e8 67 db fe ff callq 68c8 <__intel_sse4_strend@plt>
18d61: 48 83 c4 08 add $0x8,%rsp
18d65: c3 retq
18d66: 48 89 f6 mov %rsi,%rsi
18d69: 48 8d bf 00 00 00 00 lea 0x0(%rdi),%rdi
--
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