diff options
Diffstat (limited to 'runtime/probes/where_func')
| -rw-r--r-- | runtime/probes/where_func/Makefile | 2 | ||||
| -rw-r--r-- | runtime/probes/where_func/kprobe_where_funct.c | 27 | ||||
| -rwxr-xr-x | runtime/probes/where_func/stp | 39 |
3 files changed, 58 insertions, 10 deletions
diff --git a/runtime/probes/where_func/Makefile b/runtime/probes/where_func/Makefile index 1e6b9d2e..431ddc4f 100644 --- a/runtime/probes/where_func/Makefile +++ b/runtime/probes/where_func/Makefile @@ -3,7 +3,7 @@ # # make -C path/to/kernel/src M=`pwd` modules STP_RUNTIME=path_to_systemtap_rt -CFLAGS += -I $(STP_RUNTIME) -D KALLSYMS_LOOKUP_NAME=$(KALLSYMS_LOOKUP_NAME) \ +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 diff --git a/runtime/probes/where_func/kprobe_where_funct.c b/runtime/probes/where_func/kprobe_where_funct.c index e527fa03..027a40de 100644 --- a/runtime/probes/where_func/kprobe_where_funct.c +++ b/runtime/probes/where_func/kprobe_where_funct.c @@ -6,9 +6,10 @@ #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" -#include "io.c" #include "map.c" #include "probes.c" #include "current.c" @@ -47,7 +48,10 @@ static struct kprobe kp[] = { int init_module(void) { int ret; - + + if (_stp_netlink_open() < 0) + return -1; + funct_locations = _stp_map_new(1000, INT64); if (funct_name) @@ -58,23 +62,28 @@ int init_module(void) return ret; } -void cleanup_module(void) +static void probe_exit (void) { struct map_node_int64 *ptr; _stp_unregister_kprobes (kp, MAX_KPROBES); - dlog("%s() called %d times.\n", funct_name, count_funct); - dlog("NUM\tCaller Addr\tCaller Name\n", funct_name); + _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_scbuf_clear(); - _stp_symbol_sprint (key1int(ptr)); - dlog("%lld\t0x%p\t(%s)\n", ptr->val, key1int(ptr), _stp_scbuf); + _stp_printf("%lld\t", ptr->val); + _stp_symbol_print (key1int(ptr)); + _stp_print_flush(); } - + _stp_map_del(funct_locations); } +void cleanup_module(void) +{ + _stp_netlink_close(); +} + MODULE_LICENSE("GPL"); diff --git a/runtime/probes/where_func/stp b/runtime/probes/where_func/stp new file mode 100755 index 00000000..d10fcaab --- /dev/null +++ b/runtime/probes/where_func/stp @@ -0,0 +1,39 @@ +#!/bin/bash +if [ -n "$1" ] +then + modulename=$1 +else + echo "Usage: stp modulename" + exit +fi + +RELAYFS=`lsmod | grep relayfs |awk '{print $1}'` +if [ "$RELAYFS" != "relayfs" ] +then + /sbin/insmod ../../relayfs/relayfs.ko +fi + +if [ ! -d "/mnt/relay" ] +then + mkdir /mnt/relay +fi + +MOUNT=`mount | grep relayfs |awk '{print $1}'` +if [ "$MOUNT" != "relayfs" ] +then + mount -t relayfs relayfs /mnt/relay +fi + +/sbin/insmod $modulename + +# print to screen only, 4 8K buffers +#../../stpd/stpd -p -b 8192 -n 4 + +# print to screen and log to files, 4 8K buffers +../../stpd/stpd -b 8192 -n 4 + +# no screen or log +#../../stpd/stpd -q -b 8192 -n 4 + +# stpd will remove module when it exits +#/sbin/rmmod $modulename |