Commit Graph

15 Commits

Author SHA1 Message Date
Justin Bogner c27a70d048 [libFuzzer] Allow non-fuzzer args after -ignore_remaining_args=1
With this change, libFuzzer will ignore any arguments after a sigil
argument, but it will preserve these arguments at the end of the
command line when launching subprocesses. Using this, its possible to
handle positional and single-dash arguments to the program under test
by discarding everything up to -ignore_remaining_args=1 in
LLVMFuzzerInitialize.

llvm-svn: 308069
2017-07-14 23:33:04 +00:00
Kostya Serebryany e6823ced65 [libFuzzer] fix stats during merge
llvm-svn: 308061
2017-07-14 21:48:19 +00:00
Chandler Carruth 6bda14b313 Sort the remaining #include lines in include/... and lib/....
I did this a long time ago with a janky python script, but now
clang-format has built-in support for this. I fed clang-format every
line with a #include and let it re-sort things according to the precise
LLVM rules for include ordering baked into clang-format these days.

I've reverted a number of files where the results of sorting includes
isn't healthy. Either places where we have legacy code relying on
particular include ordering (where possible, I'll fix these separately)
or where we have particular formatting around #include lines that
I didn't want to disturb in this patch.

This patch is *entirely* mechanical. If you get merge conflicts or
anything, just ignore the changes in this patch and run clang-format
over your #include lines in the files.

Sorry for any noise here, but it is important to keep these things
stable. I was seeing an increasing number of patches with irrelevant
re-ordering of #include lines because clang-format was used. This patch
at least isolates that churn, makes it easy to skip when resolving
conflicts, and gets us to a clean baseline (again).

llvm-svn: 304787
2017-06-06 11:49:48 +00:00
Kostya Serebryany 4fc6dd7f8f [libFuzzer] add two experimental flags to make corpus merging more scalable: -save_coverage_summary/-load_coverage_summary. This is still WIP, the documentation will come later if these flags survive
llvm-svn: 298548
2017-03-22 20:32:44 +00:00
Kostya Serebryany 5dfa9642a8 [libFuzzer] reduce the number of vector resizes during merge (https://github.com/google/oss-fuzz/issues/445)
llvm-svn: 297551
2017-03-11 02:50:47 +00:00
Kostya Serebryany 81d1744519 [libFuzzer] print how much memory is consumed by the outer merge process (https://github.com/google/oss-fuzz/issues/445)
llvm-svn: 297546
2017-03-11 02:26:20 +00:00
Kostya Serebryany 9d0f02af3d [libFuzzer] exit(1) on failed merge
llvm-svn: 292319
2017-01-18 00:55:29 +00:00
Kostya Serebryany 4aa0590e33 [libFuzzer] improve error handling during the merge (handle various IO failures)
llvm-svn: 291182
2017-01-05 22:05:47 +00:00
Kostya Serebryany 2648243ebd [libFuzzer] use /tmp (or $TMPDIR, if present) to store temp files during merge
llvm-svn: 291078
2017-01-05 04:32:19 +00:00
Kostya Serebryany 1e438a1dba [libFuzzer] use less memory for merge
llvm-svn: 290039
2016-12-17 08:20:24 +00:00
Kostya Serebryany 628b43aab6 [libFuzzer] enable the failure-resistant merge by default (with trace-pc-guard only)
llvm-svn: 289772
2016-12-15 06:21:21 +00:00
Marcos Pividori c21b3c949d [libFuzzer] Add missing header needed for Windows.
llvm-svn: 289564
2016-12-13 17:46:48 +00:00
Marcos Pividori 7c1defd738 [libFuzzer] Avoid name collision with Windows API.
Windows uses some macros to replace DeleteFile() by DeleteFileA() or
DeleteFileW(). This was causing an error at link time.
DeleteFile was renamed to RemoveFile().

Differential Revision: https://reviews.llvm.org/D27577

llvm-svn: 289563
2016-12-13 17:46:40 +00:00
Kostya Serebryany d4be88913e [libFuzzer] respect -max_len during merge
llvm-svn: 289467
2016-12-12 20:39:35 +00:00
Kostya Serebryany 111e1d69e3 [libFuzzer] implement crash-resistant merge (https://github.com/google/sanitizers/issues/722). This is a first experimental variant that needs some more testing, thus not yet adding a lit test (but there are unit tests).
llvm-svn: 289166
2016-12-09 01:17:24 +00:00