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Mitch Phillips e78b64df98 [Scudo] Use GWP-ASan's aligned allocations and fixup postalloc hooks. 
This patch does a few cleanup things:
 1. The non-standalone scudo has a problem where GWP-ASan allocations
 may not meet alignment requirements where Scudo was requested to have
 alignment >= 16. Use the new GWP-ASan API to fix this.
 2. The standalone variant loses some debugging information inside of
 GWP-ASan because we ask GWP-ASan to allocate an aligned size in the
 frontend. This means reports end up with 'UaF on a 16-byte allocation'
 for a 1-byte allocation with 16-byte alignment. Also use the new API to
 fix this.
 3. Add post-alloc hooks for GWP-ASan intercepted allocations, and add
 stats tracking for GWP-ASan allocations.
 4. Add a small test that checks the alignment of the frontend
 allocator, so that it can be used under GWP-ASan torture mode.
 5. Add GWP-ASan torture mode as a testing configuration to catch these
 regressions.

Depends on D94830, D95889.

Reviewed By: cryptoad

Differential Revision: https://reviews.llvm.org/D95884
 		2021-05-10 12:56:18 -07:00
..
standalone [Scudo] Use GWP-ASan's aligned allocations and fixup postalloc hooks. 2021-05-10 12:56:18 -07:00
CMakeLists.txt [GWP-ASan] Crash Handler API. 2020-02-05 15:39:17 -08:00
scudo_allocator.cpp [Scudo] Use GWP-ASan's aligned allocations and fixup postalloc hooks. 2021-05-10 12:56:18 -07:00
scudo_allocator.h [scudo][NFC] Remove unneeded template from scudo::CombinedAllocator 2019-05-01 19:36:26 +00:00
scudo_allocator_combined.h [scudo][NFC] Remove unneeded template from scudo::CombinedAllocator 2019-05-01 19:36:26 +00:00
scudo_allocator_secondary.h Update compiler-rt cpplint.py 2019-09-11 21:33:06 +00:00
scudo_crc32.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_crc32.h [compiler-rt] Replace INLINE with inline 2020-09-17 16:24:20 +02:00
scudo_errors.cpp Remove NOLINTs from compiler-rt 2019-09-11 23:19:48 +00:00
scudo_errors.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_flags.cpp Improve error message when '=' is missing in {ASAN,...}_OPTIONS. 2019-06-15 01:37:14 +00:00
scudo_flags.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_flags.inc [scudo] Tuning changes based on feedback from current use 2019-01-24 15:56:54 +00:00
scudo_interface_internal.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_malloc.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_new_delete.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_platform.h [scudo] Tuning changes based on feedback from current use 2019-01-24 15:56:54 +00:00
scudo_termination.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_tsd.h [compiler-rt] Replace INLINE with inline 2020-09-17 16:24:20 +02:00
scudo_tsd_exclusive.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_tsd_exclusive.inc Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_tsd_shared.cpp [scudo] Correct a behavior on the shared TSD registry 2019-06-25 19:58:11 +00:00
scudo_tsd_shared.inc Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_utils.cpp [compiler-rt] Replace INLINE with inline 2020-09-17 16:24:20 +02:00
scudo_utils.h [compiler-rt] Replace INLINE with inline 2020-09-17 16:24:20 +02:00