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| author | Martin Liska <mliska@suse.cz> | 2016-05-12 14:36:16 +0200 |
|---|---|---|
| committer | Martin Liska <marxin@gcc.gnu.org> | 2016-05-12 12:36:16 +0000 |
| commit | cf48d8c4dc0556d165cd369eb5fa4d77fe823e59 (patch) | |
| tree | 6cdd0bbe62e077989cfb11fa18bd72acaac6ae6f /gcc/doc | |
| parent | c4ec12434da32096a04651ccb4afabe0297ac939 (diff) | |
| download | gcc-cf48d8c4dc0556d165cd369eb5fa4d77fe823e59.zip gcc-cf48d8c4dc0556d165cd369eb5fa4d77fe823e59.tar.gz gcc-cf48d8c4dc0556d165cd369eb5fa4d77fe823e59.tar.bz2 | |
Document ASAN_OPTIONS="halt_on_error" env variable.
* doc/invoke.texi: Explain connection between -fsanitize-recover=address
and ASAN_OPTIONS="halt_on_error=1".
From-SVN: r236172
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index c72ec5b..1176d12 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -10007,6 +10007,14 @@ for which this feature is experimental. accepted, the former enables recovery for all sanitizers that support it, the latter disables recovery for all sanitizers that support it. +Even if a recovery mode is turned on the compiler side, it needs to be also +enabled on the runtime library side, otherwise the failures are still fatal. +The runtime library defaults to @code{halt_on_error=0} for +ThreadSanitizer and UndefinedBehaviorSanitizer, while default value for +AddressSanitizer is @code{halt_on_error=1}. This can overridden through +the following environment variables: @env{ASAN_OPTIONS}, @env{TSAN_OPTIONS}, +@env{UBSAN_OPTIONS}. + Syntax without explicit @var{opts} parameter is deprecated. It is equivalent to @smallexample -fsanitize-recover=undefined,float-cast-overflow,float-divide-by-zero |