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From e13184e7cb12538ea6197bcde52a59e80fc41332 Mon Sep 17 00:00:00 2001
From: Justus Winter <4winter@informatik.uni-hamburg.de>
Date: Fri, 12 Sep 2014 20:52:30 +0200
Subject: [PATCH] trans/crash: add --verbose
Verbosely log application crashes to stderr.
* trans/crash.c (verbose): New variable.
(S_crash_dump_task): Verbosely log application crashes to stderr.
(options): Add --verbose.
(parse_opt): Parse --verbose.
---
trans/crash.c | 24 ++++++++++++++++++++++++
1 file changed, 24 insertions(+)
diff --git a/trans/crash.c b/trans/crash.c
index 4a59d45..1778f08 100644
--- a/trans/crash.c
+++ b/trans/crash.c
@@ -70,6 +70,7 @@ enum crash_action
#define CRASH_ORPHANS_DEFAULT crash_corefile
static enum crash_action crash_how, crash_orphans_how;
+static int verbose;
/* This is defined in ../exec/elfcore.c, or we could have
@@ -175,6 +176,24 @@ S_crash_dump_task (mach_port_t port,
}
}
+ if (verbose)
+ {
+ pid_t pid;
+ char *args;
+ size_t args_len;
+ err = proc_task2pid (procserver, task, &pid);
+
+ if (! err)
+ err = proc_getprocargs (procserver, pid, &args, &args_len);
+
+ if (! err)
+ {
+ error (0, 0, "%s(%d) received signal %d: %s",
+ args, pid, signo, strsignal (signo));
+ vm_deallocate (mach_task_self (), (vm_address_t) args, args_len);
+ }
+ }
+
switch (how)
{
default: /* NOTREACHED */
@@ -439,6 +458,7 @@ static const struct argp_option options[] =
{0,0,0,0,"These options specify the disposition of a crashing process:", 1},
{"action", 'a', "ACTION", 0, "Action taken on crashing processes", 1},
{"orphan-action", 'O', "ACTION", 0, "Action taken on crashing orphans", 1},
+ {"verbose", 'v', NULL, 0, "Log crashes to stderr", 1},
{0,0,0,0,"These options are synonyms for --action=OPTION:", 2},
{"suspend", 's', 0, 0, "Suspend the process", 2},
@@ -489,6 +509,7 @@ parse_opt (int opt, char *arg, struct argp_state *state)
case 's': crash_how = crash_suspend; break;
case 'k': crash_how = crash_kill; break;
case 'c': crash_how = crash_corefile; break;
+ case 'v': verbose = 1; break;
case ARGP_KEY_SUCCESS:
if (crash_orphans_how == crash_unspecified)
@@ -531,6 +552,9 @@ trivfs_append_args (struct trivfs_control *fsys,
err = argz_add (argz, argz_len, opt);
}
+ if (!err && verbose)
+ err = argz_add (argz, argz_len, "--verbose");
+
return err;
}
--
2.1.0
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