source/debug/debugapi.cpp

   1 #ifndef _WIN32
   2 #include <signal.h>
   3 #endif
   4 #include <msp/fs/utils.h>
   5 #include <msp/io/file.h>
   6 #include <msp/strings/format.h>
   7 #include <msp/strings/utils.h>
   8 #include "debugapi.h"
   9
  10 using namespace std;
  11
  12 namespace Msp {
  13 namespace Debug {
  14
  15 DebuggerType check_debugger(bool force_recheck)
  16 {
  17         static DebuggerType debugger = NONE;
  18         static bool checked = false;
  19
  20         if(!checked || force_recheck)
  21         {
  22                 checked = true;
  23
  24 #ifndef _WIN32
  25                 unsigned tracer_pid = 0;
  26                 IO::BufferedFile status("/proc/self/status");
  27                 string line;
  28                 while(status.getline(line))
  29                         if(!line.compare(0, 10, "TracerPid:"))
  30                         {
  31                                 tracer_pid = lexical_cast<unsigned>(strip(line.substr(10)));
  32                                 break;
  33                         }
  34
  35                 if(tracer_pid)
  36                 {
  37                         FS::Path tracer_cmd = FS::readlink(format("/proc/%d/exe", tracer_pid));
  38                         if(FS::basename(tracer_cmd)=="gdb")
  39                                 debugger = GDB;
  40                         else
  41                                 debugger = UNKNOWN;
  42                 }
  43 #endif
  44         }
  45
  46         return debugger;
  47 }
  48
  49 void debug_break()
  50 {
  51 #ifdef _WIN32
  52         __debugbreak();
  53 #else
  54         raise(SIGTRAP);
  55 #endif
  56 }
  57
  58 } // namespace Debug
  59 } // namespace Msp