code.vuplus.com Git - vuplus_dvbapp/blob - main/bsod.cpp

   1 #include <string.h>
   2 #include <signal.h>
   3 #include <asm/ptrace.h>
   4
   5 #include <lib/base/eerror.h>
   6 #include <lib/base/smartptr.h>
   7 #include <lib/gdi/grc.h>
   8 #include <lib/gdi/gfbdc.h>
   9 #ifdef WITH_SDL
  10 #include <lib/gdi/sdl.h>
  11 #endif
  12
  13 #include "version.h"
  14
  15 /************************************************/
  16
  17 #define CRASH_EMAILADDR "crashlog@dream-multimedia-tv.de"
  18
  19 #define RINGBUFFER_SIZE 16384
  20 static char ringbuffer[RINGBUFFER_SIZE];
  21 static int ringbuffer_head;
  22
  23 static void addToLogbuffer(const char *data, int len)
  24 {
  25         while (len)
  26         {
  27                 int remaining = RINGBUFFER_SIZE - ringbuffer_head;
  28
  29                 if (remaining > len)
  30                         remaining = len;
  31
  32                 memcpy(ringbuffer + ringbuffer_head, data, remaining);
  33                 len -= remaining;
  34                 data += remaining;
  35                 ringbuffer_head += remaining;
  36                 if (ringbuffer_head >= RINGBUFFER_SIZE)
  37                         ringbuffer_head = 0;
  38         }
  39 }
  40
  41 static std::string getLogBuffer()
  42 {
  43         int begin = ringbuffer_head;
  44         while (ringbuffer[begin] == 0)
  45         {
  46                 ++begin;
  47                 if (begin == RINGBUFFER_SIZE)
  48                         begin = 0;
  49                 if (begin == ringbuffer_head)
  50                         return "";
  51         }
  52         if (begin < ringbuffer_head)
  53                 return std::string(ringbuffer + begin, ringbuffer_head - begin);
  54         else
  55         {
  56                 return std::string(ringbuffer + begin, RINGBUFFER_SIZE - begin) + std::string(ringbuffer, ringbuffer_head);
  57         }
  58 }
  59
  60 static void addToLogbuffer(int level, const std::string &log)
  61 {
  62         addToLogbuffer(log.c_str(), log.size());
  63 }
  64
  65
  66 extern std::string getLogBuffer();
  67
  68 #define INFOFILE "/maintainer.info"
  69
  70 void bsodFatal(const char *component)
  71 {
  72         char logfile[128];
  73         sprintf(logfile, "/media/hdd/enigma2_crash_%u.log", (unsigned int)time(0));
  74         FILE *f = fopen(logfile, "wb");
  75
  76         std::string lines = getLogBuffer();
  77
  78                 /* find python-tracebacks, and extract "  File "-strings */
  79         size_t start = 0;
  80
  81         char crash_emailaddr[256] = CRASH_EMAILADDR;
  82         char crash_component[256] = "enigma2";
  83
  84         if (component)
  85                 snprintf(crash_component, 256, component);
  86         else
  87         {
  88                 while ((start = lines.find("\n  File \"", start)) != std::string::npos)
  89                 {
  90                         start += 9;
  91                         size_t end = lines.find("\"", start);
  92                         if (end == std::string::npos)
  93                                 break;
  94                         end = lines.rfind("/", end);
  95                         if (end == std::string::npos)
  96                                 break;
  97                         if (end - start >= (256 - strlen(INFOFILE)))
  98                                 continue;
  99                         char filename[256];
 100                         snprintf(filename, 256, "%s%s", lines.substr(start, end - start).c_str(), INFOFILE);
 101                         FILE *cf = fopen(filename, "r");
 102                         if (cf)
 103                         {
 104                                 fgets(crash_emailaddr, sizeof crash_emailaddr, cf);
 105                                 if (*crash_emailaddr && crash_emailaddr[strlen(crash_emailaddr)-1] == '\n')
 106                                         crash_emailaddr[strlen(crash_emailaddr)-1] = 0;
 107
 108                                 fgets(crash_component, sizeof crash_component, cf);
 109                                 if (*crash_component && crash_component[strlen(crash_component)-1] == '\n')
 110                                         crash_component[strlen(crash_component)-1] = 0;
 111                                 fclose(cf);
 112                         }
 113                 }
 114         }
 115
 116         if (f)
 117         {
 118                 time_t t = time(0);
 119                 fprintf(f, "enigma2 crashed on %s", ctime(&t));
 120 #ifdef ENIGMA2_CHECKOUT_TAG
 121                 fprintf(f, "enigma2 CVS TAG: " ENIGMA2_CHECKOUT_TAG "\n");
 122 #else
 123                 fprintf(f, "enigma2 compiled on " __DATE__ "\n");
 124 #endif
 125 #ifdef ENIGMA2_CHECKOUT_ROOT
 126                 fprintf(f, "enigma2 checked out from " ENIGMA2_CHECKOUT_ROOT "\n");
 127 #endif
 128                 fprintf(f, "please email this file to %s\n", crash_emailaddr);
 129                 std::string buffer = getLogBuffer();
 130                 fwrite(buffer.c_str(), buffer.size(), 1, f);
 131                 fclose(f);
 132
 133                 char cmd[256];
 134                 sprintf(cmd, "find /usr/lib/enigma2/python/ -name \"*.py\" | xargs md5sum >> %s", logfile);
 135                 system(cmd);
 136         }
 137
 138 #ifdef WITH_SDL
 139         ePtr<gSDLDC> my_dc;
 140         gSDLDC::getInstance(my_dc);
 141 #else
 142         ePtr<gFBDC> my_dc;
 143         gFBDC::getInstance(my_dc);
 144 #endif
 145
 146         {
 147                 gPainter p(my_dc);
 148                 p.resetOffset();
 149                 p.resetClip(eRect(ePoint(0, 0), my_dc->size()));
 150 #ifdef ENIGMA2_CHECKOUT_TAG
 151                 if (ENIGMA2_CHECKOUT_TAG[0] == 'T') /* tagged checkout (release) */
 152                         p.setBackgroundColor(gRGB(0x0000C0));
 153                 else if (ENIGMA2_CHECKOUT_TAG[0] == 'D') /* dated checkout (daily experimental build) */
 154                 {
 155                         srand(time(0));
 156                         int r = rand();
 157                         unsigned int col = 0;
 158                         if (r & 1)
 159                                 col |= 0x800000;
 160                         if (r & 2)
 161                                 col |= 0x008000;
 162                         if (r & 4)
 163                                 col |= 0x0000c0;
 164                         p.setBackgroundColor(gRGB(col));
 165                 }
 166 #else
 167                         p.setBackgroundColor(gRGB(0x008000));
 168 #endif
 169
 170                 p.setForegroundColor(gRGB(0xFFFFFF));
 171
 172                 ePtr<gFont> font = new gFont("Regular", 20);
 173                 p.setFont(font);
 174                 p.clear();
 175
 176                 eRect usable_area = eRect(100, 70, my_dc->size().width() - 150, 100);
 177
 178                 char text[512];
 179                 snprintf(text, 512, "We are really sorry. Your Dreambox encountered "
 180                         "a software problem, and needs to be restarted. "
 181                         "Please send the logfile created in /hdd/ to %s.\n"
 182                         "Your Dreambox restarts in 10 seconds!\n"
 183                         "Component: %s",
 184                         crash_emailaddr, crash_component);
 185
 186                 p.renderText(usable_area, text, gPainter::RT_WRAP|gPainter::RT_HALIGN_LEFT);
 187
 188                 usable_area = eRect(100, 170, my_dc->size().width() - 180, my_dc->size().height() - 20);
 189
 190                 int i;
 191
 192                 size_t start = std::string::npos + 1;
 193                 for (i=0; i<20; ++i)
 194                 {
 195                         start = lines.rfind('\n', start - 1);
 196                         if (start == std::string::npos)
 197                         {
 198                                 start = 0;
 199                                 break;
 200                         }
 201                 }
 202
 203                 font = new gFont("Regular", 14);
 204                 p.setFont(font);
 205
 206                 p.renderText(usable_area,
 207                         lines.substr(start), gPainter::RT_HALIGN_LEFT);
 208                 sleep(10);
 209         }
 210
 211         raise(SIGKILL);
 212 }
 213
 214 #if defined(__MIPSEL__)
 215 void oops(const mcontext_t &context, int dumpcode)
 216 {
 217         eDebug("PC: %08lx", (unsigned long)context.pc);
 218         int i;
 219         for (i=0; i<32; ++i)
 220         {
 221                 eDebugNoNewLine(" %08x", (int)context.gregs[i]);
 222                 if ((i&3) == 3)
 223                         eDebug("");
 224         }
 225                 /* this is temporary debug stuff. */
 226         if (dumpcode && ((unsigned long)context.pc) > 0x10000) /* not a zero pointer */
 227         {
 228                 eDebug("As a final action, i will try to dump a bit of code.");
 229                 eDebug("I just hope that this won't crash.");
 230                 int i;
 231                 eDebugNoNewLine("%08lx:", (unsigned long)context.pc);
 232                 for (i=0; i<0x20; ++i)
 233                         eDebugNoNewLine(" %02x", ((unsigned char*)context.pc)[i]);
 234                 eDebug(" (end)");
 235         }
 236 }
 237 #else
 238 #warning "no oops support!"
 239 #define NO_OOPS_SUPPORT
 240 #endif
 241
 242 void handleFatalSignal(int signum, siginfo_t *si, void *ctx)
 243 {
 244         ucontext_t *uc = (ucontext_t*)ctx;
 245         eDebug("KILLED BY signal %d", signum);
 246 #ifndef NO_OOPS_SUPPORT
 247         oops(uc->uc_mcontext, signum == SIGSEGV || signum == SIGABRT);
 248 #endif
 249         eDebug("-------");
 250         bsodFatal("enigma2, signal");
 251 }
 252
 253 void bsodCatchSignals()
 254 {
 255         struct sigaction act;
 256         act.sa_handler = SIG_DFL;
 257         act.sa_sigaction = handleFatalSignal;
 258         act.sa_flags = SA_RESTART | SA_SIGINFO;
 259         if (sigemptyset(&act.sa_mask) == -1)
 260                 perror("sigemptyset");
 261
 262                 /* start handling segfaults etc. */
 263         sigaction(SIGSEGV, &act, 0);
 264         sigaction(SIGILL, &act, 0);
 265         sigaction(SIGBUS, &act, 0);
 266         sigaction(SIGABRT, &act, 0);
 267 }
 268
 269 void bsodLogInit()
 270 {
 271         logOutput.connect(addToLogbuffer);
 272 }