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From: "howarth at nitro dot med.uc.edu" <gcc-bugzilla@gcc.gnu.org> To: gcc-bugs@gcc.gnu.org Subject: [Bug bootstrap/55289] darwin bootstrap fails due to missing libsanitizer/interception/mach_override directory and files Date: Wed, 14 Nov 2012 16:06:00 -0000 [thread overview] Message-ID: <bug-55289-4-Uw6MYiqpyl@http.gcc.gnu.org/bugzilla/> (raw) In-Reply-To: <bug-55289-4@http.gcc.gnu.org/bugzilla/> http://gcc.gnu.org/bugzilla/show_bug.cgi?id=55289 --- Comment #27 from Jack Howarth <howarth at nitro dot med.uc.edu> 2012-11-14 16:06:10 UTC --- The error in mach_override.c occurs for the use-after-free.c test case at... Replacing function at 0x1119ef630 First 16 bytes of the function: 48 8d 5 11 4f b 0 53 48 8d 5f e0 48 89 77 90 To disassemble, save the following function as disas.c and run: gcc -c disas.c && gobjdump -d disas.o The first 16 bytes of the original function will start after four nop instructions. void foo() { asm volatile("nop;nop;nop;nop;"); asm volatile(".byte 0x48, 0x8d, 0x5, 0x11, 0x4f, 0xb, 0x0, 0x53;"); asm volatile(".byte 0x48, 0x8d, 0x5f, 0xe0, 0x48, 0x89, 0x77, 0x90;"); } Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 8d FAIL Matching: 48 8d FAIL Matching: 48 8d FAIL Matching: 48 8d FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 8d FAIL Matching: 48 8d FAIL Matching: 48 FAIL Matching: 48 8d FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 FAIL Matching: 48 8d FAIL mach_override: some instructions unknown! Need to update mach_override.c overridePossible = false @299 err = f8000001 ../../../../gcc-4.8-20121114/libsanitizer/interception/mach_override/mach_override.c:308 err = f8000001 ../../../../gcc-4.8-20121114/libsanitizer/interception/mach_override/mach_override.c:321 err = f8000001 ../../../../gcc-4.8-20121114/libsanitizer/interception/mach_override/mach_override.c:327 err = f8000001 ../../../../gcc-4.8-20121114/libsanitizer/interception/mach_override/mach_override.c:340 err = f8000001 ../../../../gcc-4.8-20121114/libsanitizer/interception/mach_override/mach_override.c:345 First 16 bytes of the function after slicing: 48 8d 5 11 4f b 0 53 48 8d 5f e0 48 89 77 90
next prev parent reply other threads:[~2012-11-14 16:06 UTC|newest] Thread overview: 52+ messages / expand[flat|nested] mbox.gz Atom feed top 2012-11-12 19:32 [Bug bootstrap/55289] New: " howarth at nitro dot med.uc.edu 2012-11-12 19:32 ` [Bug bootstrap/55289] " howarth at nitro dot med.uc.edu 2012-11-12 20:53 ` dominiq at lps dot ens.fr 2012-11-13 0:47 ` howarth at nitro dot med.uc.edu 2012-11-13 13:24 ` dominiq at lps dot ens.fr 2012-11-13 13:55 ` iains at gcc dot gnu.org 2012-11-13 14:07 ` howarth at nitro dot med.uc.edu 2012-11-13 14:11 ` dominiq at lps dot ens.fr 2012-11-13 14:30 ` howarth at nitro dot med.uc.edu 2012-11-13 14:39 ` howarth at nitro dot med.uc.edu 2012-11-13 19:50 ` howarth at nitro dot med.uc.edu 2012-11-13 19:52 ` howarth at nitro dot med.uc.edu 2012-11-13 20:13 ` howarth at nitro dot med.uc.edu 2012-11-13 20:21 ` howarth at nitro dot med.uc.edu 2012-11-13 20:26 ` howarth at nitro dot med.uc.edu 2012-11-13 20:50 ` howarth at nitro dot med.uc.edu 2012-11-13 21:27 ` konstantin.s.serebryany at gmail dot com 2012-11-13 21:55 ` howarth at nitro dot med.uc.edu 2012-11-13 22:14 ` howarth at nitro dot med.uc.edu 2012-11-13 23:21 ` dominiq at lps dot ens.fr 2012-11-14 1:29 ` howarth at nitro dot med.uc.edu 2012-11-14 1:30 ` howarth at nitro dot med.uc.edu 2012-11-14 14:24 ` howarth at nitro dot med.uc.edu 2012-11-14 14:46 ` howarth at nitro dot med.uc.edu 2012-11-14 15:52 ` howarth at nitro dot med.uc.edu 2012-11-14 16:00 ` howarth at nitro dot med.uc.edu 2012-11-14 16:02 ` howarth at nitro dot med.uc.edu 2012-11-14 16:03 ` howarth at nitro dot med.uc.edu 2012-11-14 16:06 ` howarth at nitro dot med.uc.edu [this message] 2012-11-14 16:14 ` glider at google dot com 2012-11-14 16:41 ` glider at google dot com 2012-11-14 16:54 ` howarth at nitro dot med.uc.edu 2012-11-14 19:10 ` howarth at nitro dot med.uc.edu 2012-11-14 20:21 ` konstantin.s.serebryany at gmail dot com 2012-11-14 20:57 ` howarth at nitro dot med.uc.edu 2012-11-14 22:09 ` howarth at nitro dot med.uc.edu 2012-11-14 23:10 ` konstantin.s.serebryany at gmail dot com 2012-11-14 23:49 ` dominiq at lps dot ens.fr 2012-11-15 2:07 ` howarth at nitro dot med.uc.edu 2012-11-15 2:10 ` howarth at nitro dot med.uc.edu 2012-11-15 8:18 ` glider at google dot com 2012-11-15 13:46 ` howarth at nitro dot med.uc.edu 2012-11-15 13:51 ` howarth at nitro dot med.uc.edu 2012-11-15 15:04 ` dominiq at lps dot ens.fr 2012-11-15 15:13 ` howarth at nitro dot med.uc.edu 2012-11-15 17:54 ` howarth at nitro dot med.uc.edu 2012-11-15 17:58 ` iains at gcc dot gnu.org 2012-11-15 18:29 ` howarth at nitro dot med.uc.edu 2012-11-15 19:09 ` howarth at nitro dot med.uc.edu 2012-11-15 19:19 ` howarth at nitro dot med.uc.edu 2012-11-22 10:43 ` [Bug sanitizer/55289] " glider at google dot com 2012-11-24 22:37 ` howarth at nitro dot med.uc.edu
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