diff options
| author | Wei Mi <wmi@google.com> | 2012-11-12 15:51:13 +0000 |
|---|---|---|
| committer | Dodji Seketeli <dodji@gcc.gnu.org> | 2012-11-12 16:51:13 +0100 |
| commit | 37d6f666cae62d9d44c5aef4b2185e43635d5091 (patch) | |
| tree | b87fd787f6078b7ba49ca0fefd8a3b30b94d2db9 /gcc/doc | |
| parent | abfc73778e24d6e8c407150d8071bc7fed755965 (diff) | |
| download | gcc-37d6f666cae62d9d44c5aef4b2185e43635d5091.zip gcc-37d6f666cae62d9d44c5aef4b2185e43635d5091.tar.gz gcc-37d6f666cae62d9d44c5aef4b2185e43635d5091.tar.bz2 | |
Initial import of asan from the Google branch
This patch imports the initial state of asan as it was in the
Google branch.
It provides basic infrastructure for asan to instrument memory
accesses on the heap, at -O3. Note that it supports neither stack nor
global variable protection.
The rest of the patches of the set is intended to further improve this
base.
gcc/ChangeLog
* Makefile.in: Add asan.c and its dependencies.
* common.opt: Add -faddress-sanitizer option.
* invoke.texi: Document the new flag.
* passes.c: Add the asan pass.
* toplev.c (compile_file): Call asan_finish_file.
* asan.c: New file.
* asan.h: New file.
* tree-pass.h: Declare pass_asan.
Co-Authored-By: Diego Novillo <dnovillo@google.com>
Co-Authored-By: Dodji Seketeli <dodji@redhat.com>
From-SVN: r193432
Diffstat (limited to 'gcc/doc')
| -rw-r--r-- | gcc/doc/invoke.texi | 13 |
1 files changed, 10 insertions, 3 deletions
diff --git a/gcc/doc/invoke.texi b/gcc/doc/invoke.texi index 9477ffc..ef2e69a 100644 --- a/gcc/doc/invoke.texi +++ b/gcc/doc/invoke.texi @@ -354,9 +354,10 @@ Objective-C and Objective-C++ Dialects}. @item Optimization Options @xref{Optimize Options,,Options that Control Optimization}. @gccoptlist{-falign-functions[=@var{n}] -falign-jumps[=@var{n}] @gol --falign-labels[=@var{n}] -falign-loops[=@var{n}] -fassociative-math @gol --fauto-inc-dec -fbranch-probabilities -fbranch-target-load-optimize @gol --fbranch-target-load-optimize2 -fbtr-bb-exclusive -fcaller-saves @gol +-falign-labels[=@var{n}] -falign-loops[=@var{n}] -faddress-sanitizer @gol +--fassociative-math fauto-inc-dec -fbranch-probabilities @gol +--fbranch-target-load-optimize fbranch-target-load-optimize2 @gol +--fbtr-bb-exclusive -fcaller-saves @gol -fcheck-data-deps -fcombine-stack-adjustments -fconserve-stack @gol -fcompare-elim -fcprop-registers -fcrossjumping @gol -fcse-follow-jumps -fcse-skip-blocks -fcx-fortran-rules @gol @@ -6848,6 +6849,12 @@ assumptions based on that. The default is @option{-fzero-initialized-in-bss}. +@item -faddress-sanitizer +Enable AddressSanitizer, a fast memory error detector. +Memory access instructions will be instrumented to detect +out-of-bounds and use-after-free bugs. So far only heap bugs will be detected. +See @uref{http://code.google.com/p/address-sanitizer/} for more details. + @item -fmudflap -fmudflapth -fmudflapir @opindex fmudflap @opindex fmudflapth |