Status: New
Owner: ----
Labels: Type-Defect Priority-Medium
New issue 272 by [email protected]: Attempting double-free on IOS with
SDL
http://code.google.com/p/address-sanitizer/issues/detail?id=272
Hi ,
I am not sure if this issue is with the address-sanitizer or with the SDL
lib itself. But I would appreciate any help.
I have compiled latest llvm and clang from the svn repository under OSX
10.9 .
All the address-sanitizer tests ran correctly. I tried the sanitizer with
an IOS app that I am making. It is IOS 7.0 with SDL lib.
I have compiled the app with -fsanitize=address for the simulator
architecture x86 .
When I do the asan_symbolize.py / < log | c++filt
I got this:
=================================================================
==11907==ERROR: AddressSanitizer: attempting double-free on 0x0ab7aef0 in
thread T0:
#0 0x11e035 in wrap_free _asan_rtl_
#1 0x5f764 in SDL_DestroySemaphore SDL_syssem.c:119
#2 0x5f1a0 in SDL_CreateThread SDL_thread.c:382
#3 0x5fd62 in SDL_TimerInit SDL_timer.c:233
#4 0xef2e in SDL_InitSubSystem SDL.c:158
#5 0x2d2f in Game::init Game.cpp:15
#6 0x5a9d in SDL_main main.cpp:26
#7 0x95e80 in -[SDLUIKitDelegate postFinishLaunch]
SDL_uikitappdelegate.m:189
#8 0xa3512b in __NSFireDelayedPerform (in Foundation) + 371
#9 0x29dcbd5 in
__CFRUNLOOP_IS_CALLING_OUT_TO_A_TIMER_CALLBACK_FUNCTION__ (in
CoreFoundation) + 21
#10 0x29dc5bc in __CFRunLoopDoTimer (in CoreFoundation) + 1180
#11 0x29c4627 in __CFRunLoopRun (in CoreFoundation) + 1815
#12 0x29c3ac2 in CFRunLoopRunSpecific (in CoreFoundation) + 466
#13 0x29c38da in CFRunLoopRunInMode (in CoreFoundation) + 122
#14 0x45d19e1 in GSEventRunModal (in GraphicsServices) + 191
#15 0x45d1808 in GSEventRun (in GraphicsServices) + 103
#16 0xe0fd3a in UIApplicationMain (in UIKit) + 1224
#17 0x959aa in main SDL_uikitappdelegate.m:59
#18 0x2fa770c in start (in libdyld.dylib) + 0
#19 0x0 in 0x0
0x0ab7aef0 is located 0 bytes inside of 28-byte region
[0x0ab7aef0,0x0ab7af0c)
freed by thread T0 here:
==11907==AddressSanitizer CHECK failed:
/Users/sabotage3d/DEV/libs/llvm/projects/compiler-unsigned short
restrict/lib/asan/asan_allocator2.cc:237 "((id)) != (0)" (0x0, 0x0)
#0 0x126de7 in __asan::AsanCheckFailed _asan_rtl_
#1 0x12ac21 in __sanitizer::CheckFailed sanitizer_common.cc:76
Any ideas ?
Thanks in advance,
Alex
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