perf tools: Use common process_event functions for annotate and report

Prevent bit-rot in perf-annotate by using common functions where
possible. Here we create process_events.[ch] to hold the common
functions.

Signed-off-by: John Kacur <jkacur@redhat.com>
Cc: Frederic Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: acme@redhat.com
LKML-Reference: <1259073301-11506-3-git-send-email-jkacur@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

7 files changed, 186 insertions, 116 deletions

diff --git a/tools/perf/Makefile b/tools/perf/Makefile
index f1537a94a05f..de37d492e10f 100644
--- a/tools/perf/Makefile
+++ b/tools/perf/Makefile
@@ -369,6 +369,7 @@ LIB_H += util/sort.h
 LIB_H += util/hist.h
 LIB_H += util/thread.h
 LIB_H += util/data_map.h
+LIB_H += util/process_events.h
 
 LIB_OBJS += util/abspath.o
 LIB_OBJS += util/alias.o
@@ -411,6 +412,7 @@ LIB_OBJS += util/svghelper.o
 LIB_OBJS += util/sort.o
 LIB_OBJS += util/hist.o
 LIB_OBJS += util/data_map.o
+LIB_OBJS += util/process_events.o
 
 BUILTIN_OBJS += builtin-annotate.o
 
diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c
index 6b13a1ecf1e7..59b6123abec2 100644
--- a/tools/perf/builtin-annotate.c
+++ b/tools/perf/builtin-annotate.c
@@ -24,6 +24,7 @@
 #include "util/thread.h"
 #include "util/sort.h"
 #include "util/hist.h"
+#include "util/process_events.h"
 
 static char             const *input_name = "perf.data";
 
@@ -202,32 +203,6 @@ got_map:
 }
 
 static int
-process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
-{
-        struct map *map = map__new(&event->mmap, NULL, 0);
-        struct thread *thread = threads__findnew(event->mmap.pid);
-
-        dump_printf("%p [%p]: PERF_RECORD_MMAP %d: [%p(%p) @ %p]: %s\n",
-                (void *)(offset + head),
-                (void *)(long)(event->header.size),
-                event->mmap.pid,
-                (void *)(long)event->mmap.start,
-                (void *)(long)event->mmap.len,
-                (void *)(long)event->mmap.pgoff,
-                event->mmap.filename);
-
-        if (thread == NULL || map == NULL) {
-                dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
-                return 0;
-        }
-
-        thread__insert_map(thread, map);
-        total_mmap++;
-
-        return 0;
-}
-
-static int
 process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 {
         struct thread *thread = threads__findnew(event->comm.pid);
@@ -248,33 +223,6 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 }
 
 static int
-process_fork_event(event_t *event, unsigned long offset, unsigned long head)
-{
-        struct thread *thread = threads__findnew(event->fork.pid);
-        struct thread *parent = threads__findnew(event->fork.ppid);
-
-        dump_printf("%p [%p]: PERF_RECORD_FORK: %d:%d\n",
-                (void *)(offset + head),
-                (void *)(long)(event->header.size),
-                event->fork.pid, event->fork.ppid);
-
-        /*
-         * A thread clone will have the same PID for both
-         * parent and child.
-         */
-        if (thread == parent)
-                return 0;
-
-        if (!thread || !parent || thread__fork(thread, parent)) {
-                dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
-                return -1;
-        }
-        total_fork++;
-
-        return 0;
-}
-
-static int
 process_event(event_t *event, unsigned long offset, unsigned long head)
 {
         switch (event->header.type) {
@@ -288,7 +236,7 @@ process_event(event_t *event, unsigned long offset, unsigned long head)
                 return process_comm_event(event, offset, head);
 
         case PERF_RECORD_FORK:
-                return process_fork_event(event, offset, head);
+                return process_task_event(event, offset, head);
         /*
          * We dont process them right now but they are fine:
          */
diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c
index fe474b7f8ad0..1826be719b58 100644
--- a/tools/perf/builtin-report.c
+++ b/tools/perf/builtin-report.c
@@ -30,6 +30,7 @@
 #include "util/thread.h"
 #include "util/sort.h"
 #include "util/hist.h"
+#include "util/process_events.h"
 
 static char             const *input_name = "perf.data";
 
@@ -54,9 +55,6 @@ static int		exclude_other = 1;
 static char             callchain_default_opt[] = "fractal,0.5";
 const char              *vmlinux_name;
 
-static char             *cwd;
-static int              cwdlen;
-
 static struct perf_header *header;
 
 static u64              sample_type;
@@ -751,33 +749,6 @@ process_sample_event(event_t *event, unsigned long offset, unsigned long head)
 }
 
 static int
-process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
-{
-        struct map *map = map__new(&event->mmap, cwd, cwdlen);
-        struct thread *thread = threads__findnew(event->mmap.pid);
-
-        dump_printf("%p [%p]: PERF_RECORD_MMAP %d/%d: [%p(%p) @ %p]: %s\n",
-                (void *)(offset + head),
-                (void *)(long)(event->header.size),
-                event->mmap.pid,
-                event->mmap.tid,
-                (void *)(long)event->mmap.start,
-                (void *)(long)event->mmap.len,
-                (void *)(long)event->mmap.pgoff,
-                event->mmap.filename);
-
-        if (thread == NULL || map == NULL) {
-                dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
-                return 0;
-        }
-
-        thread__insert_map(thread, map);
-        total_mmap++;
-
-        return 0;
-}
-
-static int
 process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 {
         struct thread *thread = threads__findnew(event->comm.pid);
@@ -798,38 +769,6 @@ process_comm_event(event_t *event, unsigned long offset, unsigned long head)
 }
 
 static int
-process_task_event(event_t *event, unsigned long offset, unsigned long head)
-{
-        struct thread *thread = threads__findnew(event->fork.pid);
-        struct thread *parent = threads__findnew(event->fork.ppid);
-
-        dump_printf("%p [%p]: PERF_RECORD_%s: (%d:%d):(%d:%d)\n",
-                (void *)(offset + head),
-                (void *)(long)(event->header.size),
-                event->header.type == PERF_RECORD_FORK ? "FORK" : "EXIT",
-                event->fork.pid, event->fork.tid,
-                event->fork.ppid, event->fork.ptid);
-
-        /*
-         * A thread clone will have the same PID for both
-         * parent and child.
-         */
-        if (thread == parent)
-                return 0;
-
-        if (event->header.type == PERF_RECORD_EXIT)
-                return 0;
-
-        if (!thread || !parent || thread__fork(thread, parent)) {
-                dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
-                return -1;
-        }
-        total_fork++;
-
-        return 0;
-}
-
-static int
 process_lost_event(event_t *event, unsigned long offset, unsigned long head)
 {
         dump_printf("%p [%p]: PERF_RECORD_LOST: id:%Ld: lost:%Ld\n",
diff --git a/tools/perf/util/process_event.c b/tools/perf/util/process_event.c
new file mode 100644
index 000000000000..a970789581a2
--- /dev/null
+++ b/tools/perf/util/process_event.c
@@ -0,0 +1,53 @@
+#include "process_event.h"
+
+char    *cwd;
+int     cwdlen;
+
+int
+process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
+{
+        struct map *map = map__new(&event->mmap, cwd, cwdlen);
+        struct thread *thread = threads__findnew(event->mmap.pid);
+
+        dump_printf("%p [%p]: PERF_RECORD_MMAP %d/%d: [%p(%p) @ %p]: %s\n",
+                        (void *)(offset + head),
+                        (void *)(long)(event->header.size),
+                        event->mmap.pid,
+                        event->mmap.tid,
+                        (void *)(long)event->mmap.start,
+                        (void *)(long)event->mmap.len,
+                        (void *)(long)event->mmap.pgoff,
+                        event->mmap.filename);
+
+        if (thread == NULL || map == NULL) {
+                dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
+                return 0;
+        }
+
+        thread__insert_map(thread, map);
+        total_mmap++;
+
+        return 0;
+
+}
+
+int
+process_comm_event(event_t *event, unsigned long offset, unsigned long head)
+{
+        struct thread *thread = threads__findnew(event->comm.pid);
+
+        dump_printf("%p [%p]: PERF_RECORD_COMM: %s:%d\n",
+                (void *)(offset + head),
+                (void *)(long)(event->header.size),
+                event->comm.comm, event->comm.pid);
+
+        if (thread == NULL ||
+            thread__set_comm_adjust(thread, event->comm.comm)) {
+                dump_printf("problem processing PERF_RECORD_COMM, skipping event.\n");
+                return -1;
+        }
+        total_comm++;
+
+        return 0;
+}
+
diff --git a/tools/perf/util/process_event.h b/tools/perf/util/process_event.h
new file mode 100644
index 000000000000..6f68c69736cd
--- /dev/null
+++ b/tools/perf/util/process_event.h
@@ -0,0 +1,29 @@
+#ifndef __PROCESS_EVENT_H
+#define __PROCESS_EVENT_H
+
+#include "../builtin.h"
+#include "util.h"
+
+#include "color.h"
+#include <linux/list.h>
+#include "cache.h"
+#include <linux/rbtree.h>
+#include "symbol.h"
+#include "string.h"
+
+#include "../perf.h"
+#include "debug.h"
+
+#include "parse-options.h"
+#include "parse-events.h"
+
+#include "thread.h"
+#include "sort.h"
+#include "hist.h"
+
+extern char     *cwd;
+extern int      cwdlen;
+extern int process_mmap_event(event_t *, unsigned long, unsigned long);
+extern int process_comm_event(event_t *, unsigned long , unsigned long);
+
+#endif  /* __PROCESS_H */
diff --git a/tools/perf/util/process_events.c b/tools/perf/util/process_events.c
new file mode 100644
index 000000000000..a9204363efd8
--- /dev/null
+++ b/tools/perf/util/process_events.c
@@ -0,0 +1,64 @@
+#include "process_events.h"
+
+char    *cwd;
+int     cwdlen;
+
+int
+process_mmap_event(event_t *event, unsigned long offset, unsigned long head)
+{
+        struct map *map = map__new(&event->mmap, cwd, cwdlen);
+        struct thread *thread = threads__findnew(event->mmap.pid);
+
+        dump_printf("%p [%p]: PERF_RECORD_MMAP %d/%d: [%p(%p) @ %p]: %s\n",
+                (void *)(offset + head),
+                (void *)(long)(event->header.size),
+                event->mmap.pid,
+                event->mmap.tid,
+                (void *)(long)event->mmap.start,
+                (void *)(long)event->mmap.len,
+                (void *)(long)event->mmap.pgoff,
+                event->mmap.filename);
+
+        if (thread == NULL || map == NULL) {
+                dump_printf("problem processing PERF_RECORD_MMAP, skipping event.\n");
+                return 0;
+        }
+
+        thread__insert_map(thread, map);
+        total_mmap++;
+
+        return 0;
+}
+
+int
+process_task_event(event_t *event, unsigned long offset, unsigned long head)
+{
+        struct thread *thread = threads__findnew(event->fork.pid);
+        struct thread *parent = threads__findnew(event->fork.ppid);
+
+        dump_printf("%p [%p]: PERF_RECORD_%s: (%d:%d):(%d:%d)\n",
+                (void *)(offset + head),
+                (void *)(long)(event->header.size),
+                event->header.type == PERF_RECORD_FORK ? "FORK" : "EXIT",
+                event->fork.pid, event->fork.tid,
+                event->fork.ppid, event->fork.ptid);
+
+        /*
+         * A thread clone will have the same PID for both
+         * parent and child.
+         */
+        if (thread == parent)
+                return 0;
+
+        if (event->header.type == PERF_RECORD_EXIT)
+                return 0;
+
+        if (!thread || !parent || thread__fork(thread, parent)) {
+                dump_printf("problem processing PERF_RECORD_FORK, skipping event.\n");
+                return -1;
+        }
+        total_fork++;
+
+        return 0;
+}
+
diff --git a/tools/perf/util/process_events.h b/tools/perf/util/process_events.h
new file mode 100644
index 000000000000..73d092f83283
--- /dev/null
+++ b/tools/perf/util/process_events.h
@@ -0,0 +1,35 @@
+#ifndef __PROCESS_EVENTS_H
+#define __PROCESS_EVENTS_H
+
+#include "../builtin.h"
+
+#include "util.h"
+#include "color.h"
+#include <linux/list.h>
+#include "cache.h"
+#include <linux/rbtree.h>
+#include "symbol.h"
+#include "string.h"
+#include "callchain.h"
+#include "strlist.h"
+#include "values.h"
+
+#include "../perf.h"
+#include "debug.h"
+#include "header.h"
+
+#include "parse-options.h"
+#include "parse-events.h"
+
+#include "data_map.h"
+#include "thread.h"
+#include "sort.h"
+#include "hist.h"
+
+extern char     *cwd;
+extern int      cwdlen;
+
+extern int process_mmap_event(event_t *, unsigned long , unsigned long);
+extern int process_task_event(event_t *, unsigned long, unsigned long);
+
+#endif  /* __PROCESS_EVENTS_H */