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Future change will introduce GetMaxVirtualAddress that will not take
the kernel area into account.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@317638 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Since D37924 and D37925 were merged, it's now possible to specify
individual sanitizers or CFI modes in sanitizer blacklists. Update the
CFI blacklist entries to only apply to cfi-unrelated-cast checks.
Reviewers: eugenis, pcc
Reviewed By: eugenis
Subscribers: kcc
Differential Revision: https://reviews.llvm.org/D38385
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@315216 91177308-0d34-0410-b5e6-96231b3b80d8
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On non-Linux targets it just installs the blacklist.
Differential Revision: https://reviews.llvm.org/D38661
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@315215 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
The regular expression to match STL allocators can't easily account for
C++ mangling compression and fails to match some valid instances of STL
allocators. Perform this logic in clang instead.
Motivated by crbug.com/751385.
Reviewers: pcc, kcc, llvm-commits
Reviewed By: pcc
Differential Revision: https://reviews.llvm.org/D36291
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@310109 91177308-0d34-0410-b5e6-96231b3b80d8
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Patch by Vlad Tsyrklevich!
Differential Revision: https://reviews.llvm.org/D35855
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@309617 91177308-0d34-0410-b5e6-96231b3b80d8
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std::_Sp_counted_ptr_inplace::_Sp_counted_ptr_inplace().
This ctor is used by std::make_shared and needs to cast to uninitialized T*
in order to call std::allocator_traits<T>::construct.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@302272 91177308-0d34-0410-b5e6-96231b3b80d8
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https://reviews.llvm.org/D31796 results in LLD emitting __cfi_check
as a weak symbol, while Gold keeps it strong. Accept both.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@299804 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@299604 91177308-0d34-0410-b5e6-96231b3b80d8
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This reverts commit https://reviews.llvm.org/rL291734
Reason: mac breakage
http://lab.llvm.org:8080/green//job/clang-stage1-configure-RA_build/28798/consoleFull#1657087648e9a0fee5-ebcc-4238-a641-c5aa112c323e
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@291736 91177308-0d34-0410-b5e6-96231b3b80d8
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Subscribers: kubabrecka, mgorny
Differential Revision: https://reviews.llvm.org/D28541
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@291734 91177308-0d34-0410-b5e6-96231b3b80d8
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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
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@281657 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch builds on LLVM r279776.
In this patch I've done some cleanup and abstracted three common steps runtime components have in their CMakeLists files, and added a fourth.
The three steps I abstract are:
(1) Add a top-level target (i.e asan, msan, ...)
(2) Set the target properties for sorting files in IDE generators
(3) Make the compiler-rt target depend on the top-level target
The new step is to check if a command named "runtime_register_component" is defined, and to call it with the component name.
The runtime_register_component command is defined in llvm/runtimes/CMakeLists.txt, and presently just adds the component to a list of sub-components, which later gets used to generate target mappings.
With this patch a new workflow for runtimes builds is supported. The new workflow when building runtimes from the LLVM runtimes directory is:
> cmake [...]
> ninja runtimes-configure
> ninja asan
The "runtimes-configure" target builds all the dependencies for configuring the runtimes projects, and runs CMake on the runtimes projects. Running the runtimes CMake generates a list of targets to bind into the top-level CMake so subsequent build invocations will have access to some of Compiler-RT's targets through the top-level build.
Note: This patch does exclude some top-level targets from compiler-rt libraries because they either don't install files (sanitizer_common), or don't have a cooresponding `check` target (stats).
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@279863 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
This patch is a refactoring of the way cmake 'targets' are grouped.
It won't affect non-UI cmake-generators.
Clang/LLVM are using a structured way to group targets which ease
navigation through Visual Studio UI. The Compiler-RT projects
differ from the way Clang/LLVM are grouping targets.
This patch doesn't contain behavior changes.
Reviewers: kubabrecka, rnk
Subscribers: wang0109, llvm-commits, kubabrecka, chrisha
Differential Revision: http://reviews.llvm.org/D21952
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@275111 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Introducing InitializeCommonFlags accross all sanitizers to simplify
common flags management.
Setting coverage=1 when html_cov_report is requested.
Differential Revision: http://reviews.llvm.org/D18273
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@263820 91177308-0d34-0410-b5e6-96231b3b80d8
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This makes it so that component-based installations will include resource files (i.e. blacklists). My next patch will add support for component-based installations.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@261699 91177308-0d34-0410-b5e6-96231b3b80d8
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Avoid crashing when printing diagnostics for vtable-related CFI
errors. In diagnostic mode, the frontend does an additional check of
the vtable pointer against the set of all known vtable addresses and
lets the runtime handler know if it is safe to inspect the vtable.
http://reviews.llvm.org/D16824
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@259717 91177308-0d34-0410-b5e6-96231b3b80d8
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Summary:
Since the prototype of mremap is
```
void *mremap(void *old_address, size_t old_size, size_t new_size,
int flags, ... /* void *new_address*/);
```
we need to cast new_address to void * when calling mremap. Otherwise,
the wrong value will be passed to mremap on x32.
Patch by H.J Lu!
Reviewers: kcc, eugenis, samsonov
Subscribers: samsonov, llvm-commits
Differential Revision: http://reviews.llvm.org/D16805
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@259540 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@259085 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@259007 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@258977 91177308-0d34-0410-b5e6-96231b3b80d8
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Calls to __cfi_slowpath_diag are only emitted when building with
diagnostics, and linking the diag rtl.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@258881 91177308-0d34-0410-b5e6-96231b3b80d8
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This change enables diagnostics when the target address for a CFI
check is out of bounds of any known library, or even not in the
limits of the address space. This happens when casting pointers to
uninitialized memory.
Ubsan code does not yet handle some of these situations correctly,
so it is still possible to see a segmentation fault instead of a
proper diagnostic message once in a while.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@258879 91177308-0d34-0410-b5e6-96231b3b80d8
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Move all internal stuff into namespace __cfi.
Remove the double underscore prefix from anything that's now inside
the namespace.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@258859 91177308-0d34-0410-b5e6-96231b3b80d8
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Add dlopen/dlclose interceptors to update CFI shadow for loaded/unloaded libraries.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@258857 91177308-0d34-0410-b5e6-96231b3b80d8
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* add __cfi_slowpath_diag with a 3rd parameter which is a pointer to
the diagnostic info for the ubsan handlers.
*__cfi_check gets a 3rd parameter as well.
* unify vcall/cast/etc and icall diagnostic info format, and merge
the handlers to have a single entry point (actually two points due
to abort/noabort variants).
* tests
Note that this comes with a tiny overhead in the non-diag mode:
cfi_slowpath must pass 0 as the 3rd argument to cfi_check.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@258744 91177308-0d34-0410-b5e6-96231b3b80d8
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The first argument is uint64_t, not uintptr_t.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@257233 91177308-0d34-0410-b5e6-96231b3b80d8
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CFI shadow for non-CFI libraries should be "unchecked", not "invalid".
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@256285 91177308-0d34-0410-b5e6-96231b3b80d8
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Split the CFI runtime in two: cfi and cfi_diag. The latter includes
UBSan runtime to allow printing diagnostics.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@255735 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@255733 91177308-0d34-0410-b5e6-96231b3b80d8
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The current check may break if the starting address in fill_shadow is
not page-aligned.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@255725 91177308-0d34-0410-b5e6-96231b3b80d8
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This is an initial version of the runtime cross-DSO CFI support
library.
It contains a number of FIXMEs, ex. it does not support the
diagnostic mode nor dlopen/dlclose, but it works and can be tested.
Diagnostic mode, in particular, would require some refactoring (we'd
like to gather all CFI hooks in the UBSan library into one function
so that we could easier pass the diagnostic information down to
__cfi_check). It will be implemented later.
Once the diagnostic mode is in, I plan to create a second test
configuration to run all existing tests in both modes. For now, this
patch includes only a few new cross-DSO tests.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@255695 91177308-0d34-0410-b5e6-96231b3b80d8
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This causes the blacklist to be copied into place as a default build step.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@246617 91177308-0d34-0410-b5e6-96231b3b80d8
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git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@246602 91177308-0d34-0410-b5e6-96231b3b80d8
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Differential Revision: http://reviews.llvm.org/D11095
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@242287 91177308-0d34-0410-b5e6-96231b3b80d8
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