Log stack even if tombstone cannot be created.

Bug: 14498701
Change-Id: I62c271bef2f73166eeb91d3fa3ce1e1b724a081f

1 files changed, 17 insertions, 10 deletions

diff --git a/debuggerd/tombstone.cpp b/debuggerd/tombstone.cpp
index f95e572ef..d0cefc78b 100755
--- a/debuggerd/tombstone.cpp
+++ b/debuggerd/tombstone.cpp
@@ -736,33 +736,40 @@ char* engrave_tombstone(pid_t pid, pid_t tid, int signal, int original_si_code,
                         uintptr_t abort_msg_address, bool dump_sibling_threads, bool quiet,
                         bool* detach_failed, int* total_sleep_time_usec) {
   if ((mkdir(TOMBSTONE_DIR, 0755) == -1) && (errno != EEXIST)) {
-      LOG("failed to create %s: %s\n", TOMBSTONE_DIR, strerror(errno));
+    LOG("failed to create %s: %s\n", TOMBSTONE_DIR, strerror(errno));
   }
 
   if (chown(TOMBSTONE_DIR, AID_SYSTEM, AID_SYSTEM) == -1) {
-      LOG("failed to change ownership of %s: %s\n", TOMBSTONE_DIR, strerror(errno));
+    LOG("failed to change ownership of %s: %s\n", TOMBSTONE_DIR, strerror(errno));
   }
 
-  if (selinux_android_restorecon(TOMBSTONE_DIR, 0) == -1) {
-    *detach_failed = false;
-    return NULL;
+  int fd = -1;
+  char* path = NULL;
+  if (selinux_android_restorecon(TOMBSTONE_DIR, 0) == 0) {
+    path = find_and_open_tombstone(&fd);
+  } else {
+    LOG("Failed to restore security context, not writing tombstone.\n");
   }
 
-  int fd;
-  char* path = find_and_open_tombstone(&fd);
-  if (!path) {
+  if (fd < 0 && quiet) {
+    LOG("Skipping tombstone write, nothing to do.\n");
     *detach_failed = false;
     return NULL;
   }
 
   log_t log;
   log.tfd = fd;
-  log.amfd = activity_manager_connect();
+  // Preserve amfd since it can be modified through the calls below without
+  // being closed.
+  int amfd = activity_manager_connect();
+  log.amfd = amfd;
   log.quiet = quiet;
   *detach_failed = dump_crash(&log, pid, tid, signal, original_si_code, abort_msg_address,
                               dump_sibling_threads, total_sleep_time_usec);
 
-  close(log.amfd);
+  // Either of these file descriptors can be -1, any error is ignored.
+  close(amfd);
   close(fd);
+
   return path;
 }