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Re: [PATCH 01/10] Initial import of asan from the Google branch into trunk

Jakub Jelinek wrote:
On Fri, Nov 09, 2012 at 02:14:04PM +0100, Tobias Burnus wrote:
I tried the 01/10 to 10/10 patch series but it doesn't trigger for
the following test case:
Can't reproduce that (admittedly with asan SVN branch rather than the patchset):

I can reproduce both; comparing the asan0 dumps and the two asan.c files, I came up with the following patch. If I apply it on top of Dodji's branch, it now also aborts.

--- a/gcc/asan.c +++ b/gcc/asan.c @@ -1536,10 +1536,10 @@ static void asan_init_shadow_ptr_types (void) { asan_shadow_set = new_alias_set (); - shadow_ptr_types[0] = build_distinct_type_copy (unsigned_char_type_node); + shadow_ptr_types[0] = build_distinct_type_copy (signed_char_type_node); TYPE_ALIAS_SET (shadow_ptr_types[0]) = asan_shadow_set; shadow_ptr_types[0] = build_pointer_type (shadow_ptr_types[0]); - shadow_ptr_types[1] = build_distinct_type_copy (short_unsigned_type_node); + shadow_ptr_types[1] = build_distinct_type_copy (short_integer_type_node); TYPE_ALIAS_SET (shadow_ptr_types[1]) = asan_shadow_set; shadow_ptr_types[1] = build_pointer_type (shadow_ptr_types[1]); }

Other remarks:

* libsanitizer: It currently installs under "lib" even under a x86-64-gnu-linux system where it should be "lib64"; that's probably automatically fix by enabling the multilib support. Maybe, removing the "#" before "#AM_ENABLE_MULTILIB" in libsanitizer/ is sufficient

* invoke.texi: The fbranch-target-load-optimize2 and fauto-inc-dec lost the "-", additionally, there are several "--f…" items.


PS: Has someone an idea why I cannot run the -faddress-sanitizer executable on gcc20 of the GCC compile farm? Fails with the following message, but "ulimit -v" is set to "unlimited".

==4784== ReserveShadowMemoryRange failed while trying to map 0x20000001000 bytes. Perhaps you're using ulimit -v

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