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Kostya Kortchinsky 1f066a717c [scudo][standalone] Implement checksumming functions 
Summary:
This CL implements the checksumming functions. This departs from the
current Scudo code in one aspect: the software version is no longer
CRC32 but a BSD checksum. This is because the software CRC32 was too
impactful in terms of performances, the BSD checksum has no array
lookup which is better (and saves 1KB of data).

As with the current version, we only flip the CRC compiler flag for
a single compilation unit by default, to allow for a library compiled
with HW CRC32 to work on a system without HW CRC32.

There is some platform & hardware specific code in those files, but
since departs from a mere platform split, it felt right to me to have
it that way.

Reviewers: morehouse, eugenis, vitalybuka, hctim, mcgrathr

Reviewed By: morehouse

Subscribers: mgorny, delcypher, jfb, jdoerfert, #sanitizers, llvm-commits

Tags: #llvm, #sanitizers

Differential Revision: https://reviews.llvm.org/D59116

llvm-svn: 355923
 		2019-03-12 14:46:31 +00:00
..
standalone [scudo][standalone] Implement checksumming functions 2019-03-12 14:46:31 +00:00
CMakeLists.txt [compiler-rt] Cleanup usage of C++ ABI library 2019-02-16 08:34:26 +00:00
scudo_allocator.cpp [scudo] Tuning changes based on feedback from current use 2019-01-24 15:56:54 +00:00
scudo_allocator.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_allocator_combined.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_allocator_secondary.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +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 Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_errors.cpp Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +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 Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +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 Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
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 Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +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 Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00
scudo_utils.h Update the file headers across all of the LLVM projects in the monorepo 2019-01-19 08:50:56 +00:00