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Summary:
Created unstable_handle flag that takes 1 or 2, depending on the handling type.
Modified RunOne to accommodate the following heuristic:
Use the first CollectFeatures to count how many features there are.
If no new features, CollectFeatures like before.
If there is new feature, we run CB 2 more times,
Check which edges are unstable per input and we store the least amount of hit counts for each edge.
Apply these hit counts back to inline8bitcounters so that CollectFeatures can work as intended.
Modified UnstableCounters to 8int_t and created a bitset UnstableSet to tell which edges are unstable.
Patch by Kyungtak Woo (@kevinwkt).
Reviewers: Dor1s, metzman, morehouse
Reviewed By: Dor1s, morehouse
Subscribers: delcypher, #sanitizers, llvm-commits, kcc
Differential Revision: https://reviews.llvm.org/D49525
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337696 91177308-0d34-0410-b5e6-96231b3b80d8
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Previously, check-all failed many tests for me. It was running the
X86_64DefaultLinuxConfig, X86_64LibcxxLinuxConfig, and
X86_64StaticLibcxxLinuxConfig configs out of
llvm-build/projects/compiler-rt/test/fuzzer. Now, it runs them out of
separate subdirectories there, and most tests pass.
Reviewed By: morehouse, george.karpenkov
Differential Revision: https://reviews.llvm.org/D49249
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337521 91177308-0d34-0410-b5e6-96231b3b80d8
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seeds that hit every given function)
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337501 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337436 91177308-0d34-0410-b5e6-96231b3b80d8
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(DFT=data-flow-trace)
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337434 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Code now exists to track number of mutations that are used in fuzzing in total
and ones that produce new coverage. The stats are currently being dumped to the
command line.
Patch by Kodé Williams (@kodewilliams).
Reviewers: metzman, Dor1s, morehouse, kcc
Reviewed By: Dor1s, morehouse, kcc
Subscribers: delcypher, kubamracek, kcc, morehouse, llvm-commits, #sanitizers, mgorny
Differential Revision: https://reviews.llvm.org/D48054
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337324 91177308-0d34-0410-b5e6-96231b3b80d8
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This is a fix for bug 37047.
https://bugs.llvm.org/show_bug.cgi?id=37047
Implemented by basically reversing the logic. Previously all strings
were considered, with some operations excluded. Now strings are excluded
by default, and only strings during the CB considered.
Patch By: pdknsk
Differential Revision: https://reviews.llvm.org/D48800
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337296 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
STL can cause MSan false positives if lib[std]c++ isn't instrumented
with MSan.
Reviewers: kcc
Reviewed By: kcc
Subscribers: Dor1s, llvm-commits
Differential Revision: https://reviews.llvm.org/D49404
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337224 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337206 91177308-0d34-0410-b5e6-96231b3b80d8
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to test deps for libfuzzer when they're not supported by the platform
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337203 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Code now exists to track number of mutations that are used in fuzzing in total
and ones that produce new coverage. The stats are currently being dumped to the
command line.
Patch by Kodé Williams (@kodewilliams).
Reviewers: metzman, Dor1s, morehouse, kcc
Reviewed By: Dor1s, morehouse, kcc
Subscribers: delcypher, kubamracek, kcc, morehouse, llvm-commits, #sanitizers, mgorny
Differential Revision: https://reviews.llvm.org/D48054
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337194 91177308-0d34-0410-b5e6-96231b3b80d8
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Required now that we have tests using MSan and DFSan.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337193 91177308-0d34-0410-b5e6-96231b3b80d8
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unstable edges.
Summary:
Created a -print_unstable_stats flag.
When -print_unstable_stats=1, we run it 2 more times on interesting inputs poisoning unstable edges in an array.
On program termination, we run PrintUnstableStats() which will print a line with a stability percentage like AFL does.
Patch by Kyungtak Woo (@kevinwkt).
Reviewers: metzman, Dor1s, kcc, morehouse
Reviewed By: metzman, Dor1s, morehouse
Subscribers: delcypher, llvm-commits, #sanitizers, kcc, morehouse, Dor1s
Differential Revision: https://reviews.llvm.org/D49212
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337187 91177308-0d34-0410-b5e6-96231b3b80d8
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changes.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337180 91177308-0d34-0410-b5e6-96231b3b80d8
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unstable edges.
Summary:
Created a -print_unstable_stats flag.
When -print_unstable_stats=1, we run it 2 more times on interesting inputs poisoning unstable edges in an array.
On program termination, we run PrintUnstableStats() which will print a line with a stability percentage like AFL does.
Patch by Kyungtak Woo (@kevinwkt).
Reviewers: metzman, Dor1s, kcc, morehouse
Reviewed By: metzman, Dor1s, morehouse
Subscribers: delcypher, llvm-commits, #sanitizers, kcc, morehouse, Dor1s
Differential Revision: https://reviews.llvm.org/D49212
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@337175 91177308-0d34-0410-b5e6-96231b3b80d8
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The test is flaky otherwise on some of our macOS machines in the test fleet.
Differential Revision: https://reviews.llvm.org/D49277
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336966 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This allows counters associated with unused functions to be
dead-stripped along with their functions. This approach is the same one
we used for PC tables.
Fixes an issue where LLD removes an unused PC table but leaves the 8-bit
counter.
Reviewers: eugenis
Reviewed By: eugenis
Subscribers: llvm-commits, hiraditya, kcc
Differential Revision: https://reviews.llvm.org/D49264
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336941 91177308-0d34-0410-b5e6-96231b3b80d8
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Since we now have a test that requires LLD, make sure it is built before
that test runs.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336932 91177308-0d34-0410-b5e6-96231b3b80d8
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The lld feature is never available for libFuzzer tests, so
gc-sections.test never actually runs.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336926 91177308-0d34-0410-b5e6-96231b3b80d8
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See https://reviews.llvm.org/D47106 for details.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336859 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
After my recent change to allow MSan + libFuzzer, the
ExplodeDFSanLabelsTest.cpp test started to overflow the stack with
recursive function SetBytesForLabel() on an AArch64 bot. Perhaps that
bot has a smaller stack size, or maybe AArch64 has larger stack frames
for this particular function.
Reviewers: kcc, javed.absar
Reviewed By: kcc
Subscribers: kristof.beyls, llvm-commits
Differential Revision: https://reviews.llvm.org/D49150
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336725 91177308-0d34-0410-b5e6-96231b3b80d8
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This reverts rL334510 due to breakage of afl_driver's command line
interface.
Patch By: Jonathan Metzman
Differential Revision: https://reviews.llvm.org/D49141
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336719 91177308-0d34-0410-b5e6-96231b3b80d8
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MemorySanitizer is
not supported on Darwin currently and so Clang refuses to compile with
`-fsanitize=memory`.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336669 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch allows libFuzzer to fuzz applications instrumented with MSan
without recompiling libFuzzer with MSan instrumentation.
Fixes https://github.com/google/sanitizers/issues/958.
Differential Revision: https://reviews.llvm.org/D48891
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336619 91177308-0d34-0410-b5e6-96231b3b80d8
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This reverts r336597 due to bot breakage.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336616 91177308-0d34-0410-b5e6-96231b3b80d8
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Code now exists to track number of mutations that are used in fuzzing in
total and ones that produce new coverage. The stats are currently being
dumped to the command line.
Patch By: Kode Williams
Differntial Revision: https://reviews.llvm.org/D48054
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336597 91177308-0d34-0410-b5e6-96231b3b80d8
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Since problematic tests on AArch64 were disabled at r336446.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336449 91177308-0d34-0410-b5e6-96231b3b80d8
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Disable problematic tests which broke AArch64 bots.
Details available in Bugzilla: https://bugs.llvm.org/show_bug.cgi?id=38034
Differential Revision: https://reviews.llvm.org/D49011
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336446 91177308-0d34-0410-b5e6-96231b3b80d8
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Revert due to AArch64 bots breakage, upstream PR raised to track the
issue: https://bugs.llvm.org/show_bug.cgi?id=38034
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336234 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@336229 91177308-0d34-0410-b5e6-96231b3b80d8
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This change adds a support for multiarch style runtimes layout, so in
addition to the existing layout where runtimes get installed to:
lib/clang/$version/lib/$os
Clang now allows runtimes to be installed to:
lib/clang/$version/$target/lib
This also includes libc++, libc++abi and libunwind; today those are
assumed to be in Clang library directory built for host, with the
new layout it is possible to install libc++, libc++abi and libunwind
into the runtime directory built for different targets.
The use of new layout is enabled by setting the
LLVM_ENABLE_RUNTIME_TARGET_DIR CMake variable and is supported by both
projects and runtimes layouts. The runtimes CMake build has been further
modified to use the new layout when building runtimes for multiple
targets.
Differential Revision: https://reviews.llvm.org/D45604
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@335809 91177308-0d34-0410-b5e6-96231b3b80d8
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Differential Revision: https://reviews.llvm.org/D48686
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@335802 91177308-0d34-0410-b5e6-96231b3b80d8
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Under load, these tests tend to fail sporadically on our bots.
In my understanding, the signal handling is not guaranteed to happen
within 2 seconds, and the test is inherently flaky.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@335792 91177308-0d34-0410-b5e6-96231b3b80d8
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Now that check-fuzzer runs as part of check-all, some aarch64 bots had
tests failing.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@335639 91177308-0d34-0410-b5e6-96231b3b80d8
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Reviewers: kcc
Reviewed By: kcc
Subscribers: llvm-commits, mgorny
Differential Revision: https://reviews.llvm.org/D48200
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@335519 91177308-0d34-0410-b5e6-96231b3b80d8
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This is done in all other sanitizers, and was missing on libFuzzer.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@335290 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@335289 91177308-0d34-0410-b5e6-96231b3b80d8
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There's more platforms than just "ios" and "iossim" that we should support, and adding more lit config variables for each platform isn't great. Let's generalize and have a single value that determines what the platform under test is.
Differential Revision: https://reviews.llvm.org/D48309
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@335123 91177308-0d34-0410-b5e6-96231b3b80d8
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The bot doesn't recognize lld as a linker even though it has the
property lld-available.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334864 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Using associated metadata rather than llvm.used allows linkers to
perform dead stripping with -fsanitize-coverage=pc-table. Unfortunately
in my local tests, LLD was the only linker that made use of this metadata.
Partially addresses https://bugs.llvm.org/show_bug.cgi?id=34636 and fixes
https://github.com/google/sanitizers/issues/971.
Reviewers: eugenis
Reviewed By: eugenis
Subscribers: Dor1s, hiraditya, llvm-commits, kcc
Differential Revision: https://reviews.llvm.org/D48203
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334858 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334775 91177308-0d34-0410-b5e6-96231b3b80d8
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XFAIL's and adding %run commands.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334774 91177308-0d34-0410-b5e6-96231b3b80d8
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Differential Revision: https://reviews.llvm.org/D47296
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Differential Revision: https://reviews.llvm.org/D47292
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334766 91177308-0d34-0410-b5e6-96231b3b80d8
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For paths without "%t" inside uniqueness is not guaranteed, and
potential collisions might be present.
Differential Revision: https://reviews.llvm.org/D47288
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334546 91177308-0d34-0410-b5e6-96231b3b80d8
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Use config.clang as a more general option than config.c_compiler.
Differential Revision: https://reviews.llvm.org/D47295
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334545 91177308-0d34-0410-b5e6-96231b3b80d8
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Handling differently the iterations with the type limit and eventually an error message.
Reviewers: morehouse, kcc
Reviewed By: morehouse
Differential Revision: https://reviews.llvm.org/D47880
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334158 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@334156 91177308-0d34-0410-b5e6-96231b3b80d8
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