Added opt_abort_conf: abort on invalid config options.

doc/jemalloc.xml.in

@@ -874,7 +874,25 @@ mallctl("arena." STRINGIFY(MALLCTL_ARENAS_ALL) ".decay",
           <literal>r-</literal>
         </term>
         <listitem><para>Abort-on-warning enabled/disabled.  If true, most
-        warnings are fatal.  The process will call
+        warnings are fatal.  Note that runtime option warnings are not included
+        (see <link
+        linkend="opt.abort_conf"><mallctl>opt.abort_conf</mallctl></link> for
+        that). The process will call
+        <citerefentry><refentrytitle>abort</refentrytitle>
+        <manvolnum>3</manvolnum></citerefentry> in these cases.  This option is
+        disabled by default unless <option>--enable-debug</option> is
+        specified during configuration, in which case it is enabled by default.
+        </para></listitem>
+      </varlistentry>
+
+      <varlistentry id="opt.abort_conf">
+        <term>
+          <mallctl>opt.abort_conf</mallctl>
+          (<type>bool</type>)
+          <literal>r-</literal>
+        </term>
+        <listitem><para>Abort-on-invalid-configuration enabled/disabled.  If
+        true, invalid runtime options are fatal.  The process will call
         <citerefentry><refentrytitle>abort</refentrytitle>
         <manvolnum>3</manvolnum></citerefentry> in these cases.  This option is
         disabled by default unless <option>--enable-debug</option> is

include/jemalloc/internal/jemalloc_internal_externs.h

@@ -10,6 +10,7 @@ extern bool	malloc_slow;
 
 /* Run-time options. */
 extern bool opt_abort;
+extern bool opt_abort_conf;
 extern const char *opt_junk;
 extern bool opt_junk_alloc;
 extern bool opt_junk_free;

src/ctl.c

@@ -76,6 +76,7 @@ CTL_PROTO(config_stats)
 CTL_PROTO(config_utrace)
 CTL_PROTO(config_xmalloc)
 CTL_PROTO(opt_abort)
+CTL_PROTO(opt_abort_conf)
 CTL_PROTO(opt_retain)
 CTL_PROTO(opt_dss)
 CTL_PROTO(opt_narenas)
@@ -267,6 +268,7 @@ static const ctl_named_node_t	config_node[] = {
 
 static const ctl_named_node_t opt_node[] = {
 	{NAME("abort"),		CTL(opt_abort)},
+	{NAME("abort_conf"),	CTL(opt_abort_conf)},
 	{NAME("retain"),	CTL(opt_retain)},
 	{NAME("dss"),		CTL(opt_dss)},
 	{NAME("narenas"),	CTL(opt_narenas)},
@@ -1546,6 +1548,7 @@ CTL_RO_CONFIG_GEN(config_xmalloc, bool)
 /******************************************************************************/
 
 CTL_RO_NL_GEN(opt_abort, opt_abort, bool)
+CTL_RO_NL_GEN(opt_abort_conf, opt_abort_conf, bool)
 CTL_RO_NL_GEN(opt_retain, opt_retain, bool)
 CTL_RO_NL_GEN(opt_dss, opt_dss, const char *)
 CTL_RO_NL_GEN(opt_narenas, opt_narenas, unsigned)

src/jemalloc.c

@@ -23,6 +23,13 @@ const char	*je_malloc_conf
 #endif
     ;
 bool	opt_abort =
+#ifdef JEMALLOC_DEBUG
+    true
+#else
+    false
+#endif
+    ;
+bool	opt_abort_conf =
 #ifdef JEMALLOC_DEBUG
     true
 #else
@@ -274,6 +281,9 @@ typedef struct {
 #  define UTRACE(a, b, c)
 #endif
 
+/* Whether encountered any invalid config options. */
+static bool had_conf_error = false;
+
 /******************************************************************************/
 /*
  * Function prototypes for static functions that are referenced prior to
@@ -847,6 +857,10 @@ malloc_conf_error(const char *msg, const char *k, size_t klen, const char *v,
     size_t vlen) {
 	malloc_printf("<jemalloc>: %s: %.*s:%.*s\n", msg, (int)klen, k,
 	    (int)vlen, v);
+	had_conf_error = true;
+	if (opt_abort_conf) {
+		abort();
+	}
 }
 
 static void
@@ -1045,6 +1059,10 @@ malloc_conf_init(void) {
 			}
 
 			CONF_HANDLE_BOOL(opt_abort, "abort")
+			CONF_HANDLE_BOOL(opt_abort_conf, "abort_conf")
+			if (opt_abort_conf && had_conf_error) {
+				abort();
+			}
 			CONF_HANDLE_BOOL(opt_retain, "retain")
 			if (strncmp("dss", k, klen) == 0) {
 				int i;

src/stats.c

@@ -813,6 +813,7 @@ stats_general_print(void (*write_cb)(void *, const char *), void *cbopaque,
 		    "Run-time option settings:\n");
 	}
 	OPT_WRITE_BOOL(abort, ",")
+	OPT_WRITE_BOOL(abort_conf, ",")
 	OPT_WRITE_BOOL(retain, ",")
 	OPT_WRITE_CHAR_P(dss, ",")
 	OPT_WRITE_UNSIGNED(narenas, ",")