SystemTap: SystemTap Runtime Library

00001 /* -*- linux-c -*- */
-00002 
+Main Page | Data Structures | Directories | File List | Data Fields | Globals | Related Pages
+probes.c
00001 /* -*- linux-c -*- */
+00002 
+00003 /** Create a new map.
+00004  * Maps must be created at module initialization time.
+00005  * @param max_entries The maximum number of entries allowed. Currently that 
+00006  * will be allocated dynamically.
+00007  * @param type Type of values stored in this map. 
+00008  * @return A MAP on success or NULL on failure.
+00009  */
+00010 
+00011 
 00012 static unsigned long (*_stp_lookup_name)(char *name)=(void *)KALLSYMS_LOOKUP_NAME;
 00013 
-00014 void _stp_unregister_jprobes (struct jprobe *probes, int num_probes)
+00014 void _stp_unregister_jprobes (struct jprobe *probes, int num_probes)
 00015 {
 00016         int i;
 00017         for (i = 0; i < num_probes; i++)
 00018                 unregister_jprobe(&probes[i]);
-00019         dlog ("All jprobes removed\n");
+00019         dlog ("All jprobes removed\n");
 00020 }
 00021 
-00022 int _stp_register_jprobes (struct jprobe *probes, int num_probes)
+00022 int _stp_register_jprobes (struct jprobe *probes, int num_probes)
 00023 {
 00024         int i, ret ;
 00025         unsigned long addr;
@@ -26,33 +34,33 @@
 00027         for (i = 0; i < num_probes; i++) {
 00028                 addr =_stp_lookup_name((char *)probes[i].kp.addr);
 00029                 if (addr == 0) {
-00030                         dlog ("ERROR: function %s not found!\n", 
+00030                         dlog ("ERROR: function %s not found!\n", 
 00031                               (char *)probes[i].kp.addr);
 00032                         ret = -1; /* FIXME */
 00033                         goto out;
 00034                 }
-00035                 dlog("inserting jprobe at %s (%p)\n", probes[i].kp.addr, addr);
+00035                 dlog("inserting jprobe at %s (%p)\n", probes[i].kp.addr, addr);
 00036                 probes[i].kp.addr = (kprobe_opcode_t *)addr;
 00037                 ret = register_jprobe(&probes[i]);
 00038                 if (ret)
-00039                         goto out;
+00039                         goto out;
 00040         }
-00041         return 0;
+00041         return 0;
 00042 out:
-00043         dlog ("probe module initialization failed.  Exiting...\n");
-00044         _stp_unregister_jprobes(probes, i);
-00045         return ret;
+00043         dlog ("probe module initialization failed.  Exiting...\n");
+00044         _stp_unregister_jprobes(probes, i);
+00045         return ret;
 00046 }
 00047 
-00048 void _stp_unregister_kprobes (struct kprobe *probes, int num_probes)
+00048 void _stp_unregister_kprobes (struct kprobe *probes, int num_probes)
 00049 {
 00050         int i;
 00051         for (i = 0; i < num_probes; i++)
 00052                 unregister_kprobe(&probes[i]);
-00053         dlog ("All kprobes removed\n");
+00053         dlog ("All kprobes removed\n");
 00054 }
 00055 
-00056 int _stp_register_kprobes (struct kprobe *probes, int num_probes)
+00056 int _stp_register_kprobes (struct kprobe *probes, int num_probes)
 00057 {
 00058         int i, ret ;
 00059         unsigned long addr;
@@ -60,26 +68,24 @@
 00061         for (i = 0; i < num_probes; i++) {
 00062                 addr =_stp_lookup_name((char *)probes[i].addr);
 00063                 if (addr == 0) {
-00064                         dlog ("ERROR: function %s not found!\n", 
+00064                         dlog ("ERROR: function %s not found!\n", 
 00065                               (char *)probes[i].addr);
 00066                         ret = -1; /* FIXME */
 00067                         goto out;
 00068                 }
-00069                 dlog("inserting kprobe at %s (%p)\n", probes[i].addr, addr);
+00069                 dlog("inserting kprobe at %s (%p)\n", probes[i].addr, addr);
 00070                 probes[i].addr = (kprobe_opcode_t *)addr;
 00071                 ret = register_kprobe(&probes[i]);
 00072                 if (ret)
-00073                         goto out;
+00073                         goto out;
 00074         }
-00075         return 0;
+00075         return 0;
 00076 out:
-00077         dlog ("probe module initialization failed.  Exiting...\n");
-00078         _stp_unregister_kprobes(probes, i);
-00079         return ret;
+00077         dlog ("probe module initialization failed.  Exiting...\n");
+00078         _stp_unregister_kprobes(probes, i);
+00079         return ret;
 00080 }
 00081 
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