X-Git-Url: https://www.chiark.greenend.org.uk/ucgi/~ianmdlvl/git?a=blobdiff_plain;f=src%2Fjournal%2Fcoredump.c;h=88d720f6517c8c82e4b73cecfbe4771f570bf95d;hb=455971c1493fc6dc3125d235cf4ea6102cac626d;hp=db51098d9cfbb97927d66ef46a7d2042eb4d8ff0;hpb=73f860db9893deab6aebceb53dd7d0deb662e832;p=elogind.git

diff --git a/src/journal/coredump.c b/src/journal/coredump.c
index db51098d9..88d720f65 100644
--- a/src/journal/coredump.c
+++ b/src/journal/coredump.c
@@ -26,6 +26,11 @@
 #include <sys/types.h>
 #include <sys/xattr.h>
 
+#ifdef HAVE_ELFUTILS
+#  include <dwarf.h>
+#  include <elfutils/libdwfl.h>
+#endif
+
 #include "systemd/sd-journal.h"
 #include "systemd/sd-login.h"
 
@@ -668,9 +673,9 @@ int main(int argc, char* argv[]) {
 
         /* Now, let's drop privileges to become the user who owns the
          * segfaulted process and allocate the coredump memory under
-         * his uid. This also ensures that the credentials journald
-         * will see are the ones of the coredumping user, thus making
-         * sure the user himself gets access to the core dump. */
+         * the user's uid. This also ensures that the credentials
+         * journald will see are the ones of the coredumping user,
+         * thus making sure the user gets access to the core dump. */
         if (setresgid(gid, gid, gid) < 0 ||
             setresuid(uid, uid, uid) < 0) {
                 log_error("Failed to drop privileges: %m");
@@ -686,6 +691,8 @@ int main(int argc, char* argv[]) {
                 r = coredump_make_stack_trace(coredump_fd, exe, &stacktrace);
                 if (r >= 0)
                         core_message = strjoin("MESSAGE=Process ", info[INFO_PID], " (", comm, ") of user ", info[INFO_UID], " dumped core.\n\n", stacktrace, NULL);
+                else if (r == -EINVAL)
+                        log_warning("Failed to generate stack trace: %s", dwfl_errmsg(dwfl_errno()));
                 else
                         log_warning("Failed to generate stack trace: %s", strerror(-r));
         }