1                 : /*
       2                 :  * Copyright (c) 2012 The Native Client Authors. All rights reserved.
       3                 :  * Use of this source code is governed by a BSD-style license that can be
       4                 :  * found in the LICENSE file.
       5                 :  */
       6                 : 
       7                 : #include <stdio.h>
       8                 : 
       9                 : #include "native_client/src/include/nacl_macros.h"
      10                 : #include "native_client/src/shared/platform/nacl_exit.h"
      11                 : #include "native_client/src/shared/platform/nacl_log.h"
      12                 : #include "native_client/src/trusted/service_runtime/nacl_error_log_hook.h"
      13                 : #include "native_client/src/trusted/service_runtime/nacl_error_gio.h"
      14                 : 
      15                 : struct NaClApp;
      16                 : 
      17                 : static struct NaClErrorGio g_NaCl_log_gio;
      18                 : static void (*g_NaCl_log_abort_fn)(void *state,
      19                 :                                    char *buf, size_t buf_bytes) = NULL;
      20                 : static void *g_NaCl_log_abort_state = NULL;
      21                 : 
      22                 : static void NaClReportLogMessages(void) {
      23               5 :   char log_data[NACL_ERROR_GIO_MAX_BYTES];
      24               5 :   size_t log_data_bytes;
      25                 : 
      26               5 :   if (NULL != g_NaCl_log_abort_fn) {
      27                 :     /*
      28                 :      * Copy the last NACL_ERROR_GIO_MAX_BYTES of log output to the
      29                 :      * calling thread's stack, so that breakpad will pick it up.
      30                 :      */
      31               5 :     log_data_bytes = NaClErrorGioGetOutput(&g_NaCl_log_gio,
      32                 :                                            log_data,
      33                 :                                            NACL_ARRAY_SIZE(log_data));
      34               5 :     (*g_NaCl_log_abort_fn)(g_NaCl_log_abort_state,
      35                 :                            log_data, log_data_bytes);
      36               5 :   }
      37               5 :   NaClAbort();
      38               5 : }
      39                 : 
      40             266 : void NaClErrorLogHookInit(void (*hook)(void *state,
      41                 :                                        char *buf,
      42                 :                                        size_t buf_bytes),
      43             266 :                           void *state) {
      44             266 :   NaClLog(2, "NaClErrorLogHookInit: entered\n");
      45             266 :   if (!NaClErrorGioCtor(&g_NaCl_log_gio, NaClLogGetGio())) {
      46               0 :     fprintf(stderr, "sel_main_chrome: log reporting setup failed\n");
      47               0 :     NaClAbort();
      48               0 :   }
      49                 : 
      50             266 :   g_NaCl_log_abort_fn = hook;
      51             266 :   g_NaCl_log_abort_state = state;
      52                 : 
      53             266 :   NaClLogSetGio((struct Gio *) &g_NaCl_log_gio);
      54                 : 
      55             266 :   NaClLogSetAbortBehavior(NaClReportLogMessages);
      56             266 : }