https://github.com/springmeyer/msan-blacklist-testcase
https://github.com/springmeyer/msan-blacklist-testcase
Last synced: 7 months ago
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- Host: GitHub
- URL: https://github.com/springmeyer/msan-blacklist-testcase
- Owner: springmeyer
- Created: 2016-10-20T01:45:29.000Z (over 9 years ago)
- Default Branch: master
- Last Pushed: 2016-10-20T02:01:34.000Z (over 9 years ago)
- Last Synced: 2024-12-28T18:28:20.812Z (over 1 year ago)
- Language: C++
- Size: 67.4 KB
- Stars: 0
- Watchers: 1
- Forks: 0
- Open Issues: 0
-
Metadata Files:
- Readme: README.md
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README
This testcase demonstrates a situation where the MemorySanitizer does not respect the blacklist provided.
Given the `1.blacklist` file ignoring `main` I would expect no output and a zero return code from Memory Sanitizer.
Instead an error is displayed. To replicate install clang++ and run `make`.
```
export MSAN_OPTIONS=verbosity=3
make
./a.out
==23370==MemorySanitizer: failed to intercept '__isoc99_printf'
==23370==MemorySanitizer: failed to intercept '__isoc99_sprintf'
==23370==MemorySanitizer: failed to intercept '__isoc99_snprintf'
==23370==MemorySanitizer: failed to intercept '__isoc99_fprintf'
==23370==MemorySanitizer: failed to intercept '__isoc99_vprintf'
==23370==MemorySanitizer: failed to intercept '__isoc99_vsprintf'
==23370==MemorySanitizer: failed to intercept '__isoc99_vsnprintf'
==23370==MemorySanitizer: failed to intercept '__isoc99_vfprintf'
__msan_init 0x00000043d970
app-1: 0 - ffffffffff
shadow-2: 10000000000 - fffffffffff
invalid: 100000000000 - 10ffffffffff
origin-2: 110000000000 - 1fffffffffff
shadow-3: 200000000000 - 2fffffffffff
origin-3: 300000000000 - 3fffffffffff
invalid: 400000000000 - 4fffffffffff
shadow-1: 500000000000 - 50ffffffffff
app-2: 510000000000 - 5fffffffffff
origin-1: 600000000000 - 60ffffffffff
invalid: 610000000000 - 6fffffffffff
app-3: 700000000000 - 7fffffffffff
==23370==Using llvm-symbolizer found at: /wagyu/mason_packages/linux-x86_64/llvm/3.9.0/bin//llvm-symbolizer
MemorySanitizer init done
==23370==WARNING: MemorySanitizer: use-of-uninitialized-value
#0 0x52c91e in std::_Rb_tree, std::allocator >, std::pair, std::allocator > const, Catch::Ptr >, std::_Select1st, std::allocator > const, Catch::Ptr > >, std::less, std::allocator > >, std::allocator, std::allocator > const, Catch::Ptr > > >::_M_get_insert_unique_pos(std::__cxx11::basic_string, std::allocator > const&) (/msan-blacklist-testcase/a.out+0x52c91e)
#1 0x52c407 in std::_Rb_tree, std::allocator >, std::pair, std::allocator > const, Catch::Ptr >, std::_Select1st, std::allocator > const, Catch::Ptr > >, std::less, std::allocator > >, std::allocator, std::allocator > const, Catch::Ptr > > >::_M_insert_unique(std::pair, std::allocator > const, Catch::Ptr > const&) (/msan-blacklist-testcase/a.out+0x52c407)
#2 0x52bd13 in std::map, std::allocator >, Catch::Ptr, std::less, std::allocator > >, std::allocator, std::allocator > const, Catch::Ptr > > >::insert(std::pair, std::allocator > const, Catch::Ptr > const&) (/msan-blacklist-testcase/a.out+0x52bd13)
#3 0x52b9c1 in Catch::ReporterRegistry::registerReporter(std::__cxx11::basic_string, std::allocator > const&, Catch::Ptr const&) (/msan-blacklist-testcase/a.out+0x52b9c1)
#4 0x4b6afb in Catch::(anonymous namespace)::RegistryHub::registerReporter(std::__cxx11::basic_string, std::allocator > const&, Catch::Ptr const&) (/msan-blacklist-testcase/a.out+0x4b6afb)
#5 0x4cb240 in Catch::ReporterRegistrar::ReporterRegistrar(std::__cxx11::basic_string, std::allocator > const&) (/msan-blacklist-testcase/a.out+0x4cb240)
#6 0x41e752 in __cxx_global_var_init.66 (/msan-blacklist-testcase/a.out+0x41e752)
#7 0x41ee8c in _GLOBAL__sub_I_test.cc (/msan-blacklist-testcase/a.out+0x41ee8c)
#8 0x62792c in __libc_csu_init (/msan-blacklist-testcase/a.out+0x62792c)
#9 0x7f6e516837be in __libc_start_main (/lib/x86_64-linux-gnu/libc.so.6+0x207be)
#10 0x41eec8 in _start (/msan-blacklist-testcase/a.out+0x41eec8)
SUMMARY: MemorySanitizer: use-of-uninitialized-value (/msan-blacklist-testcase/a.out+0x52c91e) in std::_Rb_tree, std::allocator >, std::pair, std::allocator > const, Catch::Ptr >, std::_Select1st, std::allocator > const, Catch::Ptr > >, std::less, std::allocator > >, std::allocator, std::allocator > const, Catch::Ptr > > >::_M_get_insert_unique_pos(std::__cxx11::basic_string, std::allocator > const&)
Exiting
```