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f343968f5d
It's always hard to remember when to include this file, and when you do include it it's hard to remember what preprocessor check it needs to be behind, and then you further have to remember whether it's windows.h or win32.h which you need to include. This patch changes the name to PosixApi.h, which is more appropriately named, and makes it independent of any preprocessor setting. There's still the issue of people not knowing when to include this, because there's not a well-defined set of things it exposes other than "whatever is missing on Windows", but at least this should make it less painful to fix when problems arise. This patch depends on LLVM revision r278170. llvm-svn: 278177
87 lines
3.2 KiB
C++
87 lines
3.2 KiB
C++
// This header is included in all the test programs (C and C++) and provides a
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// hook for dealing with platform-specifics.
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#if defined(_WIN32) || defined(_WIN64)
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#ifdef COMPILING_LLDB_TEST_DLL
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#define LLDB_TEST_API __declspec(dllexport)
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#else
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#define LLDB_TEST_API __declspec(dllimport)
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#endif
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#else
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#define LLDB_TEST_API
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#endif
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#if defined(__cplusplus) && defined(_MSC_VER) && (_HAS_EXCEPTIONS == 0)
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// Compiling MSVC libraries with _HAS_EXCEPTIONS=0, eliminates most but not all
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// calls to __uncaught_exception. Unfortunately, it does seem to eliminate
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// the delcaration of __uncaught_excpeiton. Including <eh.h> ensures that it is
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// declared. This may not be necessary after MSVC 12.
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#include <eh.h>
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#endif
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#if defined(_WIN32)
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#define LLVM_PRETTY_FUNCTION __FUNCSIG__
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#else
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#define LLVM_PRETTY_FUNCTION LLVM_PRETTY_FUNCTION
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#endif
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// On some systems (e.g., some versions of linux) it is not possible to attach to a process
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// without it giving us special permissions. This defines the lldb_enable_attach macro, which
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// should perform any such actions, if needed by the platform. This is a macro instead of a
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// function to avoid the need for complex linking of the test programs.
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#if defined(__linux__)
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#include <sys/prctl.h>
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// Android API <= 16 does not have these defined.
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#ifndef PR_SET_PTRACER
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#define PR_SET_PTRACER 0x59616d61
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#endif
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#ifndef PR_SET_PTRACER_ANY
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#define PR_SET_PTRACER_ANY ((unsigned long)-1)
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#endif
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// For now we execute on best effort basis. If this fails for some reason, so be it.
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#define lldb_enable_attach() \
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do \
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{ \
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const int prctl_result = prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0); \
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(void)prctl_result; \
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} while (0)
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#else // not linux
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#define lldb_enable_attach()
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#endif
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#if defined(__APPLE__) && defined(LLDB_USING_LIBSTDCPP)
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// on Darwin, libstdc++ is missing <atomic>, so this would cause any test to fail building
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// since this header file is being included in every C-family test case, we need to not include it
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// on Darwin, most tests use libc++ by default, so this will only affect tests that explicitly require libstdc++
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#else
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#ifdef __cplusplus
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#include <atomic>
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// Note that although hogging the CPU while waiting for a variable to change
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// would be terrible in production code, it's great for testing since it
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// avoids a lot of messy context switching to get multiple threads synchronized.
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typedef std::atomic<int> pseudo_barrier_t;
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#define pseudo_barrier_wait(barrier) \
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do \
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{ \
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--(barrier); \
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while ((barrier).load() > 0) \
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; \
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} while (0)
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#define pseudo_barrier_init(barrier, count) \
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do \
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{ \
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(barrier) = (count); \
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} while (0)
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#endif // __cplusplus
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#endif // defined(__APPLE__) && defined(LLDB_USING_LIBSTDCPP)
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