From 30add090cbcbb6367c06c8bcc3c270e60c2f928e Mon Sep 17 00:00:00 2001
From: hunt <hunt>
Date: Tue, 17 May 2005 07:30:19 +0000
Subject: [PATCH] Updated for latest runtime.

---
 runtime/probes/where_func/Makefile            | 18 +++++-
 runtime/probes/where_func/build               | 16 ------
 .../probes/where_func/kprobe_where_funct.c    | 57 ++++++-------------
 3 files changed, 31 insertions(+), 60 deletions(-)
 delete mode 100755 runtime/probes/where_func/build

diff --git a/runtime/probes/where_func/Makefile b/runtime/probes/where_func/Makefile
index 431ddc4fa..30a3a41fb 100644
--- a/runtime/probes/where_func/Makefile
+++ b/runtime/probes/where_func/Makefile
@@ -1,11 +1,23 @@
 # Makefile
-#
-#
-# make -C path/to/kernel/src M=`pwd` modules STP_RUNTIME=path_to_systemtap_rt
+
+PWD     := $(shell pwd)
+KVERSION	:= $(shell uname -r)
+KDIR	:= /lib/modules/$(KVERSION)/build include
+
+KALLSYMS_LOOKUP_NAME	:= $(firstword $(shell grep " kallsyms_lookup_name" /boot/System.map-$(KVERSION)))
+KALLSYMS_LOOKUP	:= $(firstword $(shell grep " kallsyms_lookup$$" /boot/System.map-$(KVERSION)))
+KTA	:= $(firstword $(shell grep "__kernel_text_address" /boot/System.map-$(KVERSION)))
 
 CFLAGS += -I $(STP_RUNTIME) -I $(STP_RUNTIME)/relayfs -D KALLSYMS_LOOKUP_NAME=$(KALLSYMS_LOOKUP_NAME) \
 	-D KALLSYMS_LOOKUP=$(KALLSYMS_LOOKUP)
+
 obj-m := kprobe_where_funct.o
 
+default:
+	$(MAKE) -C $(KDIR) SUBDIRS=$(PWD) modules \
+	KALLSYMS_LOOKUP_NAME=0x$(KALLSYMS_LOOKUP_NAME) \
+	KALLSYMS_LOOKUP=0x$(KALLSYMS_LOOKUP)  KTA=0x$(KTA)\
+	STP_RUNTIME=$(PWD)/../..
+
 clean:
 	/bin/rm -rf *.o *.ko *~ *.mod.c .*.cmd .tmp_versions
diff --git a/runtime/probes/where_func/build b/runtime/probes/where_func/build
deleted file mode 100755
index 3713f08a9..000000000
--- a/runtime/probes/where_func/build
+++ /dev/null
@@ -1,16 +0,0 @@
-#!/bin/bash
-
-KVERSION=`uname -r`
-echo $KVERSION
-KALLSYMS_LOOKUP_NAME=`grep " kallsyms_lookup_name" /boot/System.map-$KVERSION |awk '{print $1}'`
-KALLSYMS_LOOKUP=`grep " kallsyms_lookup$" /boot/System.map-$KVERSION |awk '{print $1}'`
-
-make V=1 -C /lib/modules/`uname -r`/build M=`pwd` modules \
-	KALLSYMS_LOOKUP_NAME=0x$KALLSYMS_LOOKUP_NAME \
-	KALLSYMS_LOOKUP=0x$KALLSYMS_LOOKUP \
-	STP_RUNTIME=`pwd`/../..
-
-
-
-
-
diff --git a/runtime/probes/where_func/kprobe_where_funct.c b/runtime/probes/where_func/kprobe_where_funct.c
index 960f2290e..d75d70f90 100644
--- a/runtime/probes/where_func/kprobe_where_funct.c
+++ b/runtime/probes/where_func/kprobe_where_funct.c
@@ -1,19 +1,23 @@
 /* kprobe_where_funct.c
-   this is a simple module to get information about calls to a function that is passed as a module option
+   this is a simple module to get information about calls to a function 
+   that is passed as a module option
    Will Cohen
 */
 
-#define HASH_TABLE_BITS 8
-#define HASH_TABLE_SIZE (1<<HASH_TABLE_BITS)
-#define BUCKETS 16		/* largest histogram width */
 #define STP_NETLINK_ONLY
 #define STP_NUM_STRINGS 1
-
 #include "runtime.h"
+
+#define KEY1_TYPE INT64
+#include "map-keys.c"
+
+#define VALUE_TYPE INT64
+#include "map-values.c"
+
 #include "map.c"
 #include "probes.c"
-#include "current.c"
 #include "sym.c"
+#include "current.c"
 
 MODULE_DESCRIPTION("SystemTap probe: where_func");
 MODULE_AUTHOR("Will Cohen and Martin Hunt");
@@ -23,17 +27,14 @@ static char *funct_name = default_name;
 module_param(funct_name, charp, 0);
 MODULE_PARM_DESC(funct_name, "function entry name.\n");
 
-static int count_funct = 0;
-
 MAP funct_locations;
 
 static int inst_funct(struct kprobe *p, struct pt_regs *regs)
 {
-	long ret_addr = _stp_ret_addr(regs);
-	++count_funct;
-	_stp_map_key_long(funct_locations, ret_addr);
-	_stp_map_add_int64(funct_locations, 1);
-	return 0;
+  long ret_addr = _stp_ret_addr(regs);
+  _stp_map_key_int64(funct_locations, ret_addr);
+  _stp_map_add_int64(funct_locations, 1);
+  return 0;
 }
 
 /*For each probe you need to allocate a kprobe structure*/
@@ -45,13 +46,6 @@ static struct kprobe kp[] = {
 };
 #define MAX_KPROBES (sizeof(kp)/sizeof(struct kprobe))
 
-static unsigned n_subbufs = 4;
-module_param(n_subbufs, uint, 0);
-MODULE_PARM_DESC(n_subbufs, "number of sub-buffers per per-cpu buffer");
-
-static unsigned subbuf_size = 65536;
-module_param(subbuf_size, uint, 0);
-MODULE_PARM_DESC(subbuf_size, "size of each per-cpu sub-buffers");
 
 static int pid;
 module_param(pid, int, 0);
@@ -71,7 +65,7 @@ int init_module(void)
 		return -1;
 	}
   
-	funct_locations = _stp_map_new(1000, INT64);
+	funct_locations = _stp_map_new_int64 (1000, INT64);
 
 	if (funct_name)
 		kp[0].addr = funct_name;
@@ -81,35 +75,16 @@ int init_module(void)
 	return ret;
 }
 
-static int exited; /* FIXME: this is a stopgap - if we don't do this
-		    * and are manually removed, bad things happen */
-
 static void probe_exit (void)
 {
-	struct map_node_int64 *ptr;
-
-	exited = 1;
-	
 	_stp_unregister_kprobes (kp, MAX_KPROBES);
 
-	_stp_printf("%s() called %d times.\n", funct_name, count_funct);
-	_stp_printf("NUM\tCaller\n", funct_name);
-
-	/* now walk the hash table and print out all the information */
-	foreach(funct_locations, ptr) {
-		_stp_printf("%lld\t", ptr->val);
-		_stp_symbol_print (key1int(ptr));
-		_stp_print_flush();
-	}
-	
+	_stp_map_print (funct_locations, "locations");
 	_stp_map_del(funct_locations);
 }
 
 void cleanup_module(void)
 {
-	if (!exited)
-		probe_exit();
-	
 	_stp_transport_close();
 }
 
-- 
2.43.5