Commit Graph

6 Commits

Author SHA1 Message Date
Dimitry Andric
53b715b5ba Update compiler-rt to 3.9.0 release, and update the build glue for
libcompiler_rt and libclang_rt.
2016-09-03 21:41:29 +00:00
Dimitry Andric
f8ca070d3a Merge compiler-rt release_38 branch r258968.
Note that there is still a problem on amd64, causing SIGBUS in the early
startup of Address Sanitizer.  This is being investigated.
2016-02-06 13:39:20 +00:00
Dimitry Andric
85ab8f98e6 Install the public sanitizer headers. These are useful for programs
that want to directly interface with sanitizer internals.
2015-11-29 16:28:40 +00:00
Dimitry Andric
8527908747 Update compiler-rt to 3.7.0 release. This also includes the sanitizer
and profile libraries.
2015-09-10 20:35:47 +00:00
Dimitry Andric
8028b78dbf Connect libclang_rt to the build, for specific architectures. This
contains the libraries for Address Sanitizer (asan), Undefined Behavior
Sanitizer (ubsan) and Profile Guided Optimization.

ASan is a fast memory error detector. It can detect the following types
of bugs:

    Out-of-bounds accesses to heap, stack and globals
    Use-after-free
    Use-after-return (to some extent)
    Double-free, invalid free
    Memory leaks (experimental)

Typical slowdown introduced by AddressSanitizer is 2x.

UBSan is a fast and compatible undefined behavior checker. It enables a
number of undefined behavior checks that have small runtime cost and no
impact on address space layout or ABI.

PLEASE NOTE: the sanitizers still have some rough edges on FreeBSD,
particularly on i386.  These will hopefully be smoothed out in the
coming time.

Differential Revision: https://reviews.freebsd.org/D1505
2015-01-13 19:54:47 +00:00
Dimitry Andric
91d03e2e18 Now compiler-rt has been updated in r276851, bring in the various
sanitizer libraries that already work on FreeBSD:

* asan:    Address Sanitizer
* ubsan:   Undefined Behavior Sanitizer
* profile: Profile Guided Optimization support

Please note that these libraries are *experimental* at this stage, so
the main Makefile is not yet connected to the build.

Since I didn't want to needlessly edit BSD.usr.dist, you will also have
to create the install directory /usr/lib/clang/3.5.0/lib/freebsd
manually for now.
2015-01-08 22:40:56 +00:00