d0f89cd721
Summary: On linux we need the process to give us special permissions before we can attach to it. Previously, the code for this was copied into every file that needed it. This moves the code to a central place to reduce code duplication. Reviewers: clayborg Subscribers: lldb-commits Differential Revision: http://reviews.llvm.org/D15992 llvm-svn: 257319
45 lines
1.8 KiB
C
45 lines
1.8 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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// 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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#if defined(PR_SET_PTRACER) && defined(PR_SET_PTRACER_ANY)
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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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#endif
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#else // not linux
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#define lldb_enable_attach()
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#endif
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