mirror of
https://github.com/gperftools/gperftools
synced 2024-12-19 14:00:02 +00:00
2748dd5680
We used msync to verify that address is readable. But msync gives false positives for PROT_NONE mappings. And we recently got bug report from user hitting this exact condition. For correct access check, we steal idea from Abseil and do sigprocmask with address used as new signal mask and with invalid HOW argument. This works in today's Linux kernels and is among fastest methods available. But is brittle w.r.t. possible kernel changes. So we supply fallback method that does 2 syscalls. For non-Linux systems we implement usual "write to pipe" trick. Which also has decent performance, but requires occasional pipe draining and uses fds which could occasionally be damaged by some forking codes. We also finally cover all new code with unit test. Fixes github issue #1426
154 lines
3.0 KiB
Plaintext
154 lines
3.0 KiB
Plaintext
*.[oa]
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*.la
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*.lo
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*~
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/*.log
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/*.trs
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/.deps
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/.libs
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/GPATH
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/GRTAGS
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/GSYMS
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/GTAGS
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/ID
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/Makefile
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/Makefile.in
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/aclocal.m4
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/addressmap_unittest
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/addressmap_unittest.exe
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/autom4te.cache/
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/benchmark/.deps
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/benchmark/.dirstamp
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/binary_trees
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/binary_trees.exe
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/binary_trees_shared
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/binary_trees_shared.exe
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/check_address_unittest
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/compile
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/config.guess
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/config.log
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/config.status
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/config.sub
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/configure
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/current_allocated_bytes_test
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/current_allocated_bytes_test.exe
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/debugallocation_test
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/debugallocation_test.sh
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/depcomp
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/frag_unittest
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/frag_unittest.exe
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/getpc_test
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/gperftools-*.tar.gz
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/gperftools-*.zip
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/heap-checker-death_unittest.sh
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/heap-checker_debug_unittest
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/heap-checker_debug_unittest.sh
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/heap-checker_unittest
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/heap-checker_unittest.sh
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/heap-profiler_debug_unittest
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/heap-profiler_debug_unittest.sh
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/heap-profiler_unittest
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/heap-profiler_unittest.sh
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/install-sh
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/libprofiler.pc
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/libtcmalloc.pc
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/libtcmalloc_debug.pc
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/libtcmalloc_minimal.pc
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/libtcmalloc_minimal_debug.pc
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/libtool
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/low_level_alloc_unittest
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/low_level_alloc_unittest.exe
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/ltmain.sh
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/m4/libtool.m4
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/m4/ltoptions.m4
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/m4/ltsugar.m4
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/m4/ltversion.m4
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/m4/lt~obsolete.m4
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/malloc_bench
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/malloc_bench.exe
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/malloc_bench_shared
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/malloc_bench_shared.exe
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/malloc_bench_shared_full
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/malloc_bench_shared_full.exe
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/malloc_extension_c_test
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/malloc_extension_debug_test
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/malloc_extension_test
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/malloc_extension_test.exe
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/malloc_hook_test
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/malloc_hook_test.exe
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/markidle_unittest
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/markidle_unittest.exe
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/memalign_debug_unittest
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/memalign_unittest
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/missing
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/mmap_hook_test
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/packed_cache_test
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/packed_cache_test.exe
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/page_heap_test
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/page_heap_test.exe
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/pagemap_unittest
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/pagemap_unittest.exe
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/pprof-symbolize
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/profile_handler_unittest
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/profiledata_unittest
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/profiler1_unittest
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/profiler3_unittest
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/profiler_unittest.sh
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/raw_printer_test
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/realloc_debug_unittest
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/realloc_unittest
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/realloc_unittest.exe
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/safe_strerror_test
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/safe_strerror_test.exe
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/sampler_debug_test
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/sampler_test
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/sampling_debug_test
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/sampling_debug_test.sh
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/sampling_test
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/sampling_test.sh
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/simple_compat_test
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/src/.deps
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/src/.dirstamp
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/src/config.h.in
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/src/gperftools/tcmalloc.h
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/src/tests/.deps
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/src/windows/.dirstamp
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/stack_trace_table_test
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/stack_trace_table_test.exe
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/stacktrace_unittest
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/system_alloc_unittest
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/tcm_asserts_unittest
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/tcm_asserts_unittest.exe
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/tcm_min_asserts_unittest
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/tcmalloc_and_profiler_unittest
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/tcmalloc_both_unittest
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/tcmalloc_debug_unittest
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/tcmalloc_large_unittest
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/tcmalloc_minimal_large_unittest
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/tcmalloc_minimal_unittest
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/tcmalloc_unittest
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/tcmalloc_unittest.sh
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/test-driver
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/thread_dealloc_unittest
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/thread_dealloc_unittest.exe
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/unique_path_unittest
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/unwind_bench
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