Commit Graph

37 Commits

Author SHA1 Message Date
Chandler Carruth 2946cd7010 Update the file headers across all of the LLVM projects in the monorepo
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
2019-01-19 08:50:56 +00:00
Francis Visoiu Mistrih 1197f01bb9 [sanitizer] Guard call to internal_lseek when SANITIZER_MAC is true
r334881 breaks macOS bots because internal_lseek is not defined (neither
used on macOS):
http://green.lab.llvm.org/green/job/clang-stage1-configure-RA/46240/consoleFull.

See discussion from r334881: https://reviews.llvm.org/rL334881

llvm-svn: 334944
2018-06-18 13:53:51 +00:00
Fangrui Song 87bcd4abef [sanitizer_common] Fix windows build caused by r334881
llvm-svn: 334884
2018-06-16 05:05:19 +00:00
Fangrui Song d40fc6019b [sanitizer_common] Use O_TRUNC for WrOnly access mode.
Summary: Otherwise if the file existed and was larger than the write size before the OpenFile call, the file will not be truncated and contain garbage in trailing bytes.

Reviewers: glider, kcc, vitalybuka

Subscribers: kubamracek, delcypher, llvm-commits, #sanitizers

Differential Revision: https://reviews.llvm.org/D48250

llvm-svn: 334881
2018-06-16 03:32:59 +00:00
Vitaly Buka 661d81ef61 [sanitizer] Don't use internal_unlink on Windows
llvm-svn: 334152
2018-06-07 00:26:06 +00:00
Vitaly Buka 72fd23c9c5 [sanitizer] Replace deprecated mktemp with mkstemp
llvm-svn: 334138
2018-06-06 22:05:48 +00:00
Vitaly Buka 4ef9117b49 [sanitizer] Cleanup ReadFileToVector and ReadFileToBuffer
Summary:
Added unit-test.
Fixed behavior of max_len argument.
Call read syscall with all available buffer, not just a page.

Reviewers: eugenis

Subscribers: kubamracek, mgorny, llvm-commits

Differential Revision: https://reviews.llvm.org/D46618

llvm-svn: 334130
2018-06-06 20:53:43 +00:00
Vitaly Buka d4abe9e7d3 [sanitizer_common] Move filesystem-related code out of sanitizer_common.cc
Summary:
This is a pure refactoring change.  It just moves code that is
related to filesystem operations from sanitizer_common.{cc,h} to
sanitizer_file.{cc,h}.  This makes it cleaner to disable the
filesystem-related code for a new port that doesn't want it.

Submitted on behalf of Roland McGrath.

Reviewers: kcc, eugenis, alekseyshl

Reviewed By: alekseyshl

Subscribers: vitalybuka, llvm-commits, kubamracek, mgorny, phosek

Tags: #sanitizers

Differential Revision: https://reviews.llvm.org/D35591

llvm-svn: 308819
2017-07-22 01:46:40 +00:00
Vitaly Buka 094684c155 Revert "[sanitizer_common] Move filesystem-related code out of sanitizer_common.cc"
Breaks Windows build.

This reverts commit r308640.

llvm-svn: 308648
2017-07-20 18:24:45 +00:00
Alex Shlyapnikov 89e85d1717 [sanitizer_common] Move filesystem-related code out of sanitizer_common.cc
This is a pure refactoring change. It just moves code that is
related to filesystem operations from sanitizer_common.{cc,h} to
sanitizer_file.{cc,h}. This makes it cleaner to disable the
filesystem-related code for a new port that doesn't want it.

Commiting for mcgrathr.

Reviewers: alekseyshl

Subscribers: llvm-commits

Differential Revision: https://reviews.llvm.org/D35591

llvm-svn: 308640
2017-07-20 17:48:42 +00:00
Anna Zaks 691644f3ca [compiler-rt] Do not introduce __sanitizer namespace globally
The definitions in sanitizer_common may conflict with definitions from system headers because:

The runtime includes the system headers after the project headers (as per LLVM coding guidelines).
lib/sanitizer_common/sanitizer_internal_defs.h pollutes the namespace of everything defined after it, which is all/most of the sanitizer .h and .cc files and the included system headers with: using namespace __sanitizer; // NOLINT
This patch solves the problem by introducing the namespace only within the sanitizer namespaces as proposed by Dmitry.

Differential Revision: https://reviews.llvm.org/D21947

llvm-svn: 281657
2016-09-15 21:02:18 +00:00
Anna Zaks a44def276c [compiler-rt] Do not pull in min and max macros from windows.h
This should fix Windows buildbot breakage triggered by r253690.

llvm-svn: 253701
2015-11-20 20:18:06 +00:00
Anna Zaks c54cf07fd7 [compiler-rt] Add internal implementations for strlcat and strlcpy
The compiler-rt should make use of strlcpy() rather than strncpy(). Using internal_strncpy() may be fine with appropriate bounds checking or enforcement of nul-termination elsewhere, but it's just good practice these days to avoid using strncpy() in new code.

A patch by Jeremy Sequoia!

Differential Revision: http://reviews.llvm.org/D14714

llvm-svn: 253690
2015-11-20 18:42:05 +00:00
Reid Kleckner e96833e648 [Windows] Implement FileExists, ReadFromFile, and FindPathToBinary
Summary: These are needed to talk to llvm-symbolizer on Windows.

Reviewers: samsonov

Subscribers: llvm-commits

Differential Revision: http://reviews.llvm.org/D11920

llvm-svn: 244533
2015-08-10 23:40:27 +00:00
Alexey Samsonov 1e156011d1 [Sanitizer] Try to fix sanitizer_libc_test on FreeBSD.
llvm-svn: 243797
2015-07-31 23:02:51 +00:00
Timur Iskhodzhanov 5df4d0471f Move more POSIX-specific functions to sanitizer_posix.h
llvm-svn: 234482
2015-04-09 12:54:06 +00:00
Timur Iskhodzhanov 864308a78d Introduce CloseFile to be used instead of internal_close on non-POSIX
llvm-svn: 234481
2015-04-09 12:37:05 +00:00
Timur Iskhodzhanov 3745303c5b Move some POSIX-specific functions from sanitizer_libc.h to a new sanitizer_posix.h
llvm-svn: 234418
2015-04-08 17:08:24 +00:00
Timur Iskhodzhanov daa9e2d4e8 [Sanitizers] Make OpenFile more portable
llvm-svn: 234410
2015-04-08 16:03:22 +00:00
Alexander Potapenko f0581dda03 [sanitizer] Fix file access modes in SanitizerCommon.InternalMmapWithOffset and SanitizerCommon.FileOps
llvm-svn: 232972
2015-03-23 17:55:19 +00:00
Alexander Potapenko 141e420a81 [ASan] Distinguish between read, write and read-write file access modes in OpenFile.
This is to fix mapping coverage files into memory on OSX.

llvm-svn: 232936
2015-03-23 10:10:46 +00:00
Viktor Kutuzov e01a595dad [Sanitizers] Fix internal_lseek() to work on FreeBSD
Differential Revision: http://reviews.llvm.org/D6825

llvm-svn: 225443
2015-01-08 13:28:22 +00:00
Evgeniy Stepanov 5a09b2cdeb [sanitizer] Disable InternalMmapWithOffset test on OSX.
llvm-svn: 224822
2014-12-24 13:59:35 +00:00
Evgeniy Stepanov 40b16f4037 [sanitizer] Disable InternalMmapWithOffset test on Windows.
llvm-svn: 224820
2014-12-24 13:05:21 +00:00
Evgeniy Stepanov 98211121ab [sanitizer] mmap2 syscall works with 4096-byte units instead of bytes.
Ouch.

llvm-svn: 224819
2014-12-24 12:58:09 +00:00
Timur Iskhodzhanov 5812350591 [Sanitizer tests] Exclude three tests that fail on Windows
llvm-svn: 208698
2014-05-13 13:34:00 +00:00
Alexey Samsonov 249c7fb10e Add internal_strchrnul function
llvm-svn: 189797
2013-09-03 13:09:28 +00:00
Sergey Matveev 14b56186ab [sanitizer] Minor fixes in sanitizer_common tests.
llvm-svn: 181786
2013-05-14 13:19:33 +00:00
Kostya Serebryany 9d987e34f7 [tsan] fix gcc build with -Wall
llvm-svn: 181763
2013-05-14 08:26:55 +00:00
Peter Collingbourne 6f4be19b57 [nolibc] Change internal syscall API to remove reliance on libc's errno.
This change moves to a model where the error value of a system call is
potentially contained in the return value itself rather than being
implicit in errno.  The helper function internal_iserror can be used
to extract the error value from a return value.  On platforms other
than Linux/x86_64 this still uses errno, but other platforms are free
to port their error handling to this new model.

Differential Revision: http://llvm-reviews.chandlerc.com/D756

llvm-svn: 181436
2013-05-08 14:43:49 +00:00
Evgeniy Stepanov 517118e6b4 [sanitizer] Sanitizer __internal_*stat interface.
With this change, __internal_*stat always expect a "struct stat *" argument.
This avoids stat/stat64 caller-side confusion (sanitizer_common tests already
made this mistake), and allows the use of __internal_fstat() as a drop-in
replacement for libc's fstat().

llvm-svn: 181311
2013-05-07 12:47:04 +00:00
Evgeniy Stepanov 2e50efd484 [sanitizer] Fix FileOps test on Android.
llvm-svn: 175515
2013-02-19 15:01:05 +00:00
Kostya Serebryany 9f298da9bd [asan] instrument memory accesses with unusual sizes
This patch makes asan instrument memory accesses with unusual sizes (e.g. 5 bytes or 10 bytes), e.g. long double or
packed structures.
Instrumentation is done with two 1-byte checks
(first and last bytes) and if the error is found
__asan_report_load_n(addr, real_size) or
__asan_report_store_n(addr, real_size)
is called.

asan-rt part

Also fix lint.

llvm-svn: 175508
2013-02-19 11:30:25 +00:00
Alexey Samsonov 9211bd33ec [Sanitizer] Make temporary filename depend on user ID
llvm-svn: 175424
2013-02-18 07:17:12 +00:00
Alexey Samsonov 2c5cbd2b38 [Sanitizer] extend internal libc with stat/fstat/lstat functions
llvm-svn: 174316
2013-02-04 10:16:50 +00:00
Kostya Serebryany cb510e50e2 [asan] implement more strict checking for memset/etc parameters. Instead of checking the first and the last byte, we check the entire shadow region. This costs ~10 slowdown for the instrumented functions. Motivated by a nasty memset-buffer-overflow-by-140-bytes in chrome which was reported as a use-after-free or not at all
llvm-svn: 171198
2012-12-28 15:24:16 +00:00
Alexander Potapenko 2a1925852d Fix the internal_memmove() implementation that used to skip src[0] if dst < src.
llvm-svn: 166774
2012-10-26 13:24:20 +00:00