Summary:
We have a way to keep track of allocated DTLS segments: let's use it
in LSan. Although this code is fragile and relies on glibc
implementation details, in some cases it proves to be better than
existing way of tracking DTLS in LSan: marking as "reachable" all
memory chunks allocated directly by "ld".
The plan is to eventually get rid of the latter, once we are sure
it's safe to remove.
Reviewers: kcc
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D16164
llvm-svn: 257785
This patch add support for leak sanitizer for aarch64. Similar to
MIPS it uses a SizeClassAllocator32 due VMA constraints (aarch64
currently supports 39 and 42-bit VMA).
It also fixes the android build issue.
llvm-svn: 250898
This patch add support for leak sanitizer for aarch64. Similar to
MIPS it uses a SizeClassAllocator32 due VMA constraints (aarch64
currently supports 39 and 42-bit VMA).
llvm-svn: 249337
Wrap the StopTheWorld call in a dl_iterate_phdr() callback. This ensures that no
other threads are holding the libdl lock, and we can safely reenter it in the
tracer thread.
llvm-svn: 230631
Summary:
LSan can be combined with a parent tool (for now it's only ASan).
Also, we allow LSAN_OPTIONS to override certain common flags. It means
we have to parse LSAN_OPTIONS early enough, before the rest of the
parent tool (including chunks of sanitizer_common) is initialized.
In future, we can use the same approach for UBSan, after we embed it
into ASan runtime in a similar way.
Test Plan: regression test suite
Reviewers: earthdok, eugenis
Subscribers: llvm-commits
Differential Revision: http://reviews.llvm.org/D7577
llvm-svn: 229519
The new parser is a lot stricter about syntax, reports unrecognized
flags, and will make it easier to implemented some of the planned features.
llvm-svn: 226169
This mirrors r225239 to all the rest sanitizers:
ASan, DFSan, LSan, MSan, TSan, UBSan.
Now the runtime flag type, name, default value and
description is located in the single place in the
.inc file.
llvm-svn: 225327
another sanitizer.
A user may run both LSan and LSan+ASan. It is weird to pass path to leak
suppression file (or other common sanitizer flags, like "verbosity") in
"LSAN_OPTIONS" in the first case and in "ASAN_OPTIONS" in the second case.
llvm-svn: 215949
Print the list of leaked objects after each leak report. Previously we
printed only a joint list of all leaked objects. As a bonus, suppressed objects
are no longer reported.
llvm-svn: 197977
It conflicted with the verbosity flag we had in common flags. We don't need an
LSan-specific flag anyway.
Also, shift some logging levels and remove some unnecessary code.
llvm-svn: 197512
Introduce a flag to either always or never print matched suppressions.
Previously, matched suppressions were printed unconditionally if there were
unsuppressed leaks. Also, verbosity=1 no longer has the semantics of "always
print suppressions and summary".
llvm-svn: 197510
Add an interface for telling LSan that a region of memory is to be treated as a
source of live pointers. Useful for code which stores pointers in mapped memory.
llvm-svn: 197489
Summary:
No more (potenital) false negatives due to red zones or fake stack
frames.
Reviewers: kcc, samsonov
Reviewed By: samsonov
CC: llvm-commits, samsonov
Differential Revision: http://llvm-reviews.chandlerc.com/D2359
llvm-svn: 196778
Update the main thread's os_id on every pthread_create, and before
initiating leak checking. This ensures that we have the correct os_id even if we
have forked after Init().
llvm-svn: 185815
Alexey Samsonov