to reflect the new license.
We understand that people may be surprised that we're moving the header
entirely to discuss the new license. We checked this carefully with the
Foundation's lawyer and we believe this is the correct approach.
Essentially, all code in the project is now made available by the LLVM
project under our new license, so you will see that the license headers
include that license only. Some of our contributors have contributed
code under our old license, and accordingly, we have retained a copy of
our old license notice in the top-level files in each project and
repository.
llvm-svn: 351636
Summary:
- use proper Error() decorator for error messages
- refactor ASan thread id and name reporting
Reviewers: eugenis
Subscribers: kubamracek, delcypher, #sanitizers, llvm-commits
Differential Revision: https://reviews.llvm.org/D49044
llvm-svn: 336573
Following patch adds support of all memory origins in
CheckForInvalidPointerPair function. For small difference of pointers,
it's directly done in shadow memory (the limit was set to 2048B).
Then we search for origin of first pointer and verify that the second
one has the same origin. If so, we verify that it points either to a same
variable (in case of stack memory or a global variable), or to a same
heap segment.
Committing on behanf of marxin and jakubjelinek.
Reviewers: alekseyshl, kcc
Subscribers: llvm-commits
Differential revision: https://reviews.llvm.org/D40600
llvm-svn: 319668
ASan allocator stores the requested alignment for new and new[] calls
and on delete and delete[] verifies that alignments do match.
The representable alignments are: default alignment, 8, 16, 32, 64, 128,
256 and 512 bytes. Alignments > 512 are stored as 512, hence two
different alignments > 512 will pass the check (possibly masking the bug),
but limited memory requirements deemed to be a resonable tradeoff for
relaxed conditions.
The feature is controlled by new_delete_type_mismatch flag, the same one
protecting new/delete matching size check.
Differential revision: https://reviews.llvm.org/D38574
Issue: https://github.com/google/sanitizers/issues/799
llvm-svn: 316595
When -fsanitize-address-use-after-scope is used, the instrumentation produces line numbers in stack frame descriptions. This patch make sure the ASan runtime supports this format (ParseFrameDescription needs to be able to parse "varname:line") and prepares lit tests to allow line numbers in ASan report output.
Differential Revision: https://reviews.llvm.org/D31484
llvm-svn: 299043
Summary:
This is important information when we want to describe errors, and should be
part of these descriptions. Otherwise, we need to know the access size when
printing/emitting the description.
Reviewers: kcc, eugenis, vitalybuka
Subscribers: llvm-commits, kubabrecka
Differential Revision: https://reviews.llvm.org/D24387
llvm-svn: 281093
Summary:
This is useful for inclusion in the Error* structures, to describe an
arbitrary address.
Remove the old struct since it's used only once. This removes one level of
indirection, and moves all *AddressDescription to be one of the recently
introduced structures.
This merges differential revisions: D24131 and D24132
Reviewers: kcc, eugenis, vitalybuka
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D24131
llvm-svn: 281090
Summary:
The Print() members might take optional access_size and bug_type
parameters to still be able to provide the same information
Reviewers: kcc, samsonov
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D23658
llvm-svn: 279237
Summary:
Replacement for part of D23518
This deals with global variable addresses.
(This commit is written on top of D23605, but can be applied by itself)
Reviewers: kcc, samsonov
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D23607
llvm-svn: 278959
Summary:
Replacement for part of D23518
This deals with stack addresses.
Reviewers: kcc, samsonov
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D23605
llvm-svn: 278958
Summary:
Replacement for part of D23518
This deals with heap addresses, and renames DescribeHeapAddress.
Requires D23520, which moves code around to make it accessible in asan_describers.cc (and still accessible in asan_report.cc if needed).
Reviewers: kcc, samsonov
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D23569
llvm-svn: 278917
Summary:
Replacement for part of D23518
Code refactoring to allow us to move some more DescribeAddressIf* functions to work by getting the structured information, and then printing it.
Reviewers: kcc, samsonov
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D23520
llvm-svn: 278820
Summary:
Replacement for part of D23518
This is the first patch to start reifying information about errors. It deals only with reifying shadow address-related information.
It will allow us to generate structures with all the relevant information for a given error so a debugger can get to them or they can be included in a core dump.
Reviewers: kcc, samsonov
Subscribers: kubabrecka, llvm-commits
Differential Revision: https://reviews.llvm.org/D23519
llvm-svn: 278718
Chandler Carruth