qemu-sweb/qemu-debug-info-0xe9.patch

   1 *** qemu-0.12.5/vl.c    2010-07-22 14:39:04.000000000 +0200
   2 --- qemu-0.12.5-patched/vl.c    2010-11-12 13:14:42.000000000 +0100
   3 ***************
   4 *** 228,233 ****
   5 --- 228,234 ----
   6   unsigned int nb_prom_envs = 0;
   7   const char *prom_envs[MAX_PROM_ENVS];
   8   int boot_menu;
   9 + static void e9write(void *opaque, uint32_t address, uint32_t value);
  10
  11   typedef struct FWBootEntry FWBootEntry;
  12
  13 ***************
  14 *** 1453,1458 ****
  15 --- 1454,1460 ----
  16       }
  17       bdrv_close_all();
  18       pause_all_vcpus();
  19 +     e9write(0, 0, '\n');
  20   }
  21
  22   static void version(void)
  23 *************** static int virtcon_parse(const char *dev
  24 *** 4848,4853 ****
  25 --- 4848,4891 ----
  26       return 0;
  27   }
  28
  29 + static void e9write(void *opaque, uint32_t address, uint32_t value)
  30 + {
  31 +   static uint32_t last = -1;
  32 +   static size_t pos = 0;
  33 +   static char buffer[256];
  34 +   if (last == -1)
  35 +     buffer[0] = 0;
  36 +   if (value == '\r')
  37 +   {
  38 +     printf("%s\n", buffer);
  39 +     fflush(stdout);
  40 +     pos = 0;
  41 +     buffer[0] = 0;
  42 +   }
  43 +   else if (value == '\n')
  44 +   {
  45 +     if (last != '\r')
  46 +     {
  47 +       printf("%s\n", buffer);
  48 +       fflush(stdout);
  49 +       pos = 0;
  50 +       buffer[0] = 0;
  51 +     }
  52 +   }
  53 +   else
  54 +   {
  55 +     buffer[pos++] = (char) value;
  56 +     buffer[pos] = 0;
  57 +     if (pos+2 >= sizeof(buffer))
  58 +     {
  59 +       printf("%s", buffer);
  60 +       pos = 0;
  61 +       buffer[0] = 0;
  62 +     }
  63 +   }
  64 +   last = value;
  65 + }
  66 +
  67   int main(int argc, char **argv, char **envp)
  68   {
  69       const char *gdbstub_dev = NULL;
  70 *************** int main(int argc, char **argv, char **e
  71 *** 6136,6141 ****
  72 --- 6174,6182 ----
  73       }
  74   #endif
  75
  76 +     /* register the 0xe9 port to the e9write function */
  77 +     register_ioport_write(0xe9, 1, 1, e9write, NULL);
  78 +
  79       main_loop();
  80       quit_timers();
  81       net_cleanup();