lldb/packages/Python/lldbsuite/test/make/test_common.h

   1 // This header is included in all the test programs (C and C++) and provides a
   2 // hook for dealing with platform-specifics.
   3
   4 #if defined(_WIN32) || defined(_WIN64)
   5 #define LLDB_DYLIB_EXPORT __declspec(dllexport)
   6 #define LLDB_DYLIB_IMPORT __declspec(dllimport)
   7 #else
   8 #define LLDB_DYLIB_EXPORT
   9 #define LLDB_DYLIB_IMPORT
  10 #endif
  11
  12 #ifdef COMPILING_LLDB_TEST_DLL
  13 #define LLDB_TEST_API LLDB_DYLIB_EXPORT
  14 #else
  15 #define LLDB_TEST_API LLDB_DYLIB_IMPORT
  16 #endif
  17
  18 #if defined(_WIN32)
  19 #define LLVM_PRETTY_FUNCTION __FUNCSIG__
  20 #else
  21 #define LLVM_PRETTY_FUNCTION LLVM_PRETTY_FUNCTION
  22 #endif
  23
  24
  25 // On some systems (e.g., some versions of linux) it is not possible to attach to a process
  26 // without it giving us special permissions. This defines the lldb_enable_attach macro, which
  27 // should perform any such actions, if needed by the platform. This is a macro instead of a
  28 // function to avoid the need for complex linking of the test programs.
  29 #if defined(__linux__)
  30 #include <sys/prctl.h>
  31
  32 // Android API <= 16 does not have these defined.
  33 #ifndef PR_SET_PTRACER
  34 #define PR_SET_PTRACER 0x59616d61
  35 #endif
  36 #ifndef PR_SET_PTRACER_ANY
  37 #define PR_SET_PTRACER_ANY ((unsigned long)-1)
  38 #endif
  39
  40 // For now we execute on best effort basis.  If this fails for some reason, so be it.
  41 #define lldb_enable_attach()                                                          \
  42     do                                                                                \
  43     {                                                                                 \
  44         const int prctl_result = prctl(PR_SET_PTRACER, PR_SET_PTRACER_ANY, 0, 0, 0);  \
  45         (void)prctl_result;                                                           \
  46     } while (0)
  47
  48 #else // not linux
  49
  50 #define lldb_enable_attach()
  51
  52 #endif