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/havana/work/llvm/projects/compiler-rt/test/asan/TestCases/Linux/swapcontext_annotation.cc:158:20: error: variable has incomplete type 'struct sigaction'
struct sigaction act = {};
^
/havana/work/llvm/projects/compiler-rt/test/asan/TestCases/Linux/swapcontext_annotation.cc:158:10: note: forward declaration of 'sigaction'
struct sigaction act = {};
^
/havana/work/llvm/projects/compiler-rt/test/asan/TestCases/Linux/swapcontext_annotation.cc:160:17: error: use of undeclared identifier 'SIGPROF'
if (sigaction(SIGPROF, &act, 0)) {
^
2 errors generated.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@319532 91177308-0d34-0410-b5e6-96231b3b80d8
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Thanks to Reid Kleckner for the suggestion.
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@299794 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch extends __sanitizer_finish_switch_fiber method to optionally return previous stack base and size.
This solves the problem of coroutines/fibers library not knowing the original stack context from which the library is used. It's incorrect to assume that such context is always the default stack of current thread (e.g. one such library may be used from a fiber/coroutine created by another library). Bulding a separate stack tracking mechanism would not only duplicate AsanThread, but also require each coroutines/fibers library to integrate with it.
Author: Andrii Grynenko (andriigrynenko)
Reviewed in: https://reviews.llvm.org/D24628
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@282582 91177308-0d34-0410-b5e6-96231b3b80d8
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This patch adds the __sanitizer_start_switch_fiber and
__sanitizer_finish_switch_fiber methods inspired from what can be found here
https://github.com/facebook/folly/commit/2ea64dd24946cbc9f3f4ac3f6c6b98a486c56e73 .
These methods are needed when the compiled software needs to implement
coroutines, fibers or the like. Without a way to annotate them, when the program
jumps to a stack that is not the thread stack, __asan_handle_no_return shows a
warning about that, and the fake stack mechanism may free fake frames that are
still in use.
Author: blastrock (Philippe Daouadi)
Reviewed in http://reviews.llvm.org/D20913
git-svn-id: https://llvm.org/svn/llvm-project/compiler-rt/trunk@273260 91177308-0d34-0410-b5e6-96231b3b80d8
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