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[Bug bootstrap/55289] darwin bootstrap fails due to missing libsanitizer/interception/mach_override directory and files
- From: "howarth at nitro dot med.uc.edu" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Tue, 13 Nov 2012 20:25:45 +0000
- Subject: [Bug bootstrap/55289] darwin bootstrap fails due to missing libsanitizer/interception/mach_override directory and files
- Auto-submitted: auto-generated
- References: <bug-55289-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55289
--- Comment #13 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-11-13 20:25:45 UTC ---
Also note the comment in mach_override.c...
#elif defined(__x86_64__)
// TODO(glider): disassembling the "0x48, 0x89" sequences is trickier than it's
done below.
// If it stops working, refer to
http://ref.x86asm.net/geek.html#modrm_byte_32_64 to do it
// more accurately.
// Note: 0x48 is in fact the REX.W prefix, but it might be wrong to treat it as
a separate
// instruction.
looks like we are bumping into this bug.