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19 Commits

Author SHA1 Message Date
Matt Morehouse 3bea25e554 [SanitizerCoverage] Create comdat for global arrays. 
Summary:
Place global arrays in comdat sections with their associated functions.
This makes sure they are stripped along with the functions they
reference, even on the BFD linker.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: eraman, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51902

llvm-svn: 342186
 2018-09-13 21:45:55 +00:00
Matt Morehouse f0d7daa972 Revert "[SanitizerCoverage] Create comdat for global arrays." 
This reverts r341987 since it will cause trouble when there's a module
ID collision.

llvm-svn: 341995
 2018-09-11 21:15:41 +00:00
Matt Morehouse 7ce6032432 [SanitizerCoverage] Create comdat for global arrays. 
Summary:
Place global arrays in comdat sections with their associated functions.
This makes sure they are stripped along with the functions they
reference, even on the BFD linker.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: eraman, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51902

llvm-svn: 341987
 2018-09-11 20:10:40 +00:00
Matt Morehouse 40fbdd0c4f Revert "[SanitizerCoverage] Create comdat for global arrays." 
This reverts r341951 due to bot breakage.

llvm-svn: 341965
 2018-09-11 17:20:14 +00:00
Matt Morehouse eac270caf4 [SanitizerCoverage] Create comdat for global arrays. 
Summary:
Place global arrays in comdat sections with their associated functions.
This makes sure they are stripped along with the functions they
reference, even on the BFD linker.

Reviewers: eugenis

Reviewed By: eugenis

Subscribers: eraman, hiraditya, llvm-commits

Differential Revision: https://reviews.llvm.org/D51902

llvm-svn: 341951
 2018-09-11 15:23:14 +00:00
Kostya Serebryany bfc83fa8d7 [sanitizer-coverage] don't instrument available_externally functions 
llvm-svn: 309611
 2017-07-31 20:00:22 +00:00
Kostya Serebryany bb6f079a45 [sanitizer-coverage] ensure minimal alignment for coverage counters and guards 
llvm-svn: 309610
 2017-07-31 19:49:45 +00:00
George Karpenkov a793cfb441 Revert "Fixes for tests for r303698" 
This reverts commit 69bfaf72e7502eb08bbca88a57925fa31c6295c6.

llvm-svn: 303709
 2017-05-24 00:29:08 +00:00
George Karpenkov 65ab07b1f1 Fixes for tests for r303698 
llvm-svn: 303701
 2017-05-23 22:42:34 +00:00
Kostya Serebryany be87d480ff [sanitizer-coverage] remove stale code 
llvm-svn: 300769
 2017-04-19 21:48:09 +00:00
Justin Bogner 41e632bf6b SanitizerCoverage: Support sanitizer guard section on darwin 
MachO's sections need a segment as well as a section name, and the
section start and end symbols are spelled differently than on ELF.

llvm-svn: 293733
 2017-02-01 02:38:39 +00:00
Kostya Serebryany a9b0dd0e51 [sanitizer-coverage/libFuzzer] make the guards for trace-pc 32-bit; create one array of guards per function, instead of one guard per BB. reorganize the code so that trace-pc-guard does not create unneeded globals 
llvm-svn: 282735
 2016-09-29 17:43:24 +00:00
Kostya Serebryany 8ad4155745 [sanitizer-coverage] change trace-pc to use 8-byte guards 
llvm-svn: 281809
 2016-09-17 05:03:05 +00:00
Kostya Serebryany da718e55cf [sanitizer-coverage] add yet another flavour of coverage instrumentation: trace-pc-guard. The intent is to eventually replace all of {bool coverage, 8bit-counters, trace-pc} with just this one. LLVM part 
llvm-svn: 281431
 2016-09-14 01:39:35 +00:00
Mike Aizatsky 70ea45306a [sancov] enabling coverage edge pruning by default. 
Differential Revision: http://reviews.llvm.org/D18844

llvm-svn: 265615
 2016-04-06 23:24:37 +00:00
Kostya Serebryany 3c767db3c5 [libFuzzer] don't emit callbacks to sanitizer run-time in -fsanitize-coverage=trace-pc mode; update libFuzzer doc for previous commit 
llvm-svn: 262110
 2016-02-27 05:45:12 +00:00
Kostya Serebryany d4590c7304 [sanitizer-coverage] implement -fsanitize-coverage=trace-pc. This is similar to trace-bb, but has a different API. We already use the equivalent flag in GCC for Linux kernel fuzzing. We may be able to use this flag with AFL too 
llvm-svn: 261159
 2016-02-17 21:34:43 +00:00
Kostya Serebryany d421db05bb [asan] simplify the tracing code, make it use the same guard variables as coverage 
llvm-svn: 225103
 2015-01-03 00:54:43 +00:00
Kostya Serebryany cb45b126fb [asan] add experimental basic-block tracing to asan-coverage; also fix -fsanitize-coverage=3 which was broken by r221718 
llvm-svn: 222290
 2014-11-19 00:22:58 +00:00