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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
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This should fix following buildbot errors:
http://lab.llvm.org:8011/builders/clang-ppc64le-linux/builds/20371
llvm-svn: 343031
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when in MinGW mode
In MinGW mode, the /export: directives in object files are interpreted
differently; the symbols are not assumed to be decorated.
Since the GNU linker doesn't support the /alternatename and /include
directives, there's no such distinction for them in lld. This assumes
that the resulting sanitizer libraries will be linked by lld.
Differential Revision: https://reviews.llvm.org/D51882
llvm-svn: 343015
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specific details
The MinGW headers do define _M_IX86 (contrary to clang-cl and
MSVC where it is a compiler predefined macro), but the headers that
define it aren't included here.
Also check these defines for setting the symbol prefix, instead of
inconsistently using _WIN64 for that.
Differential Revision: https://reviews.llvm.org/D51883
llvm-svn: 343013
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Summary: lib/sanitizer_common/sanitizer_win_defs.h defineds WINAPI, which is also defined by standard Windows headers. Redefining it causes warnings during compilation. This change causes us to only define WINAPI if it is not already defined, which avoids the warnings.
Reviewers: rnk, zturner, mpividori
Reviewed By: rnk, mpividori
Subscribers: kubamracek
Differential Revision: https://reviews.llvm.org/D29683
llvm-svn: 294497
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When the sanitizer is implemented as a static library and is included in the
main executable, we need an auxiliary static library dll_thunk that will be
linked to the dlls that have instrumentation, so they can refer to the runtime
in the main executable. Basically, it uses interception to get a pointer the
function in the main executable and override its function with that pointer.
Before this diff, all of the implementation for dll_thunks was included in asan.
In this diff I split it into different sanitizers, so we can use other
sanitizers regardless of whether we include asan or not.
All the sanitizers include a file sanitizer_win_dll_thunk.cc that register
functions to be intercepted in the binary section: DLLTH
When the dll including dll_thunk is initialized, it will execute
__dll_thunk_init() implemented in: sanitizer_common/sanitizer_win_dll_thunk.cc,
which will consider all the CB registered in the section DLLTH. So, all the
functions registered will be intercepted, and redirected to the implementation
in the main executable.
All the files "sanitizer_win_dll_thunk.cc" are independent, so we don't need to
include a specific list of sanitizers. Now, we compile: asan_win_dll_thunk.cc
ubsan_win_dll_thunk.cc, sanitizer_coverage_win_dll_thunk.cc and
sanitizer_win_dll_thunk.cc, to generate asan_dll_thunk, because we include asan,
ubsan and sanitizer coverage in the address sanitizer library.
Differential Revision: https://reviews.llvm.org/D29154
llvm-svn: 293951
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Add auxiliary macro to ensure parameters are expanded before stringifying.
Differential Revision: https://reviews.llvm.org/D29312
llvm-svn: 293671
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In this diff, I define a general macro for defining weak functions
with a default implementation: "SANITIZER_INTERFACE_WEAK_DEF()".
This way, we simplify the implementation for different platforms.
For example, we cannot define weak functions on Windows, but we can
use linker pragmas to create an alias to a default implementation.
All of these implementation details are hidden in the new macro.
Also, as I modify the name for exported weak symbols on Windows, I
needed to temporarily disable "dll_host" test for asan, which checks
the list of functions included in asan_win_dll_thunk.
Differential Revision: https://reviews.llvm.org/D28596
llvm-svn: 293419
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This patch adds some useful macros for dealing with pragma directives on
Windows. Also, I add appropriate documentation for future users.
Differential Revision: https://reviews.llvm.org/D28525
llvm-svn: 292650
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