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[Bug sanitizer/55975] asan does not work with 46 bit address space on PowerPC64
- From: "kcc at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 23 Jan 2013 12:21:51 +0000
- Subject: [Bug sanitizer/55975] asan does not work with 46 bit address space on PowerPC64
- Auto-submitted: auto-generated
- References: <bug-55975-4@http.gcc.gnu.org/bugzilla/>
http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55975
--- Comment #25 from Kostya Serebryany <kcc at gcc dot gnu.org> 2013-01-23 12:21:51 UTC ---
So, what is our decision?
Are we just doing
- static const uptr kHighMemEnd = 0x00000fffffffffffUL;
+ static const uptr kHighMemEnd = 0x00003fffffffffffUL;
, leaving SHADOW_OFFSET=(1ULL << 41)
and using ADD instead of OR when applying SHADOW_OFFSET?
This seems to work on my ppc box (44-bit) with LLVM
(I've changed it to use ADD on PPC)