[PATCH v5] Enable -fsanitize-recover for KASan

[Yury Gribov]

On 10/28/2014 12:26 PM, Jakub Jelinek wrote:
> On Tue, Oct 28, 2014 at 11:46:31AM +0300, Yury Gribov wrote:
>> 2014-10-23  Yury Gribov  <y.gribov@samsung.com>
>>
>> gcc/
>> 	* asan.c (report_error_func): Add noabort path.
>> 	(check_func): Ditto.  Formatting.
>> 	(asan_expand_check_ifn): Handle noabort path.
>> 	* common.opt (flag_sanitize_recover): Add SANITIZE_KERNEL_ADDRESS
>> 	to default value.
>> 	* doc/invoke.texi (-fsanitize-recover=): Mention KASan.
>> 	* opts.c (finish_options): Reword comment.
>> 	* sanitizer.def: Add noabort ASan builtins.
>>
>> gcc/testsuite/
>> 	* c-c++-common/asan/kasan-recover-1.c: New test.
>> 	* c-c++-common/asan/kasan-recover-2.c: New test.
>
> Are the __asan_{load,store,report}*_noabort entrypoints going to be added
> into libasan too?

Probably not, ASan team has declined recovery mode in userspace ASan 
since the beginning of days.  It's even mentioned in their FAQ at 
https://code.google.com/p/address-sanitizer/wiki/AddressSanitizer

-Y