[PATCH 1/2] perf tests: Factor out fake_setup_machine()
From: Namhyung Kim
Date: Thu Apr 24 2014 - 23:28:40 EST
The fake_setup_machine() is for setting up a environment for testing
various hists operations. As it'll be used for other test cases it'd
better factoring it out.
Signed-off-by: Namhyung Kim <namhyung@xxxxxxxxxx>
---
tools/perf/Makefile.perf | 1 +
tools/perf/tests/hists_common.c | 148 ++++++++++++++++++++++++++++++++++++++++
tools/perf/tests/hists_common.h | 44 ++++++++++++
tools/perf/tests/hists_link.c | 141 +-------------------------------------
4 files changed, 195 insertions(+), 139 deletions(-)
create mode 100644 tools/perf/tests/hists_common.c
create mode 100644 tools/perf/tests/hists_common.h
diff --git a/tools/perf/Makefile.perf b/tools/perf/Makefile.perf
index eb57e2cf1b4c..1490afeb7252 100644
--- a/tools/perf/Makefile.perf
+++ b/tools/perf/Makefile.perf
@@ -396,6 +396,7 @@ LIB_OBJS += $(OUTPUT)tests/rdpmc.o
LIB_OBJS += $(OUTPUT)tests/evsel-roundtrip-name.o
LIB_OBJS += $(OUTPUT)tests/evsel-tp-sched.o
LIB_OBJS += $(OUTPUT)tests/pmu.o
+LIB_OBJS += $(OUTPUT)tests/hists_common.o
LIB_OBJS += $(OUTPUT)tests/hists_link.o
LIB_OBJS += $(OUTPUT)tests/python-use.o
LIB_OBJS += $(OUTPUT)tests/bp_signal.o
diff --git a/tools/perf/tests/hists_common.c b/tools/perf/tests/hists_common.c
new file mode 100644
index 000000000000..44655b395bb9
--- /dev/null
+++ b/tools/perf/tests/hists_common.c
@@ -0,0 +1,148 @@
+#include "perf.h"
+#include "util/debug.h"
+#include "util/symbol.h"
+#include "util/sort.h"
+#include "util/evsel.h"
+#include "util/evlist.h"
+#include "util/machine.h"
+#include "util/thread.h"
+#include "tests/hists_common.h"
+
+static struct {
+ u32 pid;
+ const char *comm;
+} fake_threads[] = {
+ { 100, "perf" },
+ { 200, "perf" },
+ { 300, "bash" },
+};
+
+static struct {
+ u32 pid;
+ u64 start;
+ const char *filename;
+} fake_mmap_info[] = {
+ { 100, 0x40000, "perf" },
+ { 100, 0x50000, "libc" },
+ { 100, 0xf0000, "[kernel]" },
+ { 200, 0x40000, "perf" },
+ { 200, 0x50000, "libc" },
+ { 200, 0xf0000, "[kernel]" },
+ { 300, 0x40000, "bash" },
+ { 300, 0x50000, "libc" },
+ { 300, 0xf0000, "[kernel]" },
+};
+
+struct fake_sym {
+ u64 start;
+ u64 length;
+ const char *name;
+};
+
+static struct fake_sym perf_syms[] = {
+ { 700, 100, "main" },
+ { 800, 100, "run_command" },
+ { 900, 100, "cmd_record" },
+};
+
+static struct fake_sym bash_syms[] = {
+ { 700, 100, "main" },
+ { 800, 100, "xmalloc" },
+ { 900, 100, "xfree" },
+};
+
+static struct fake_sym libc_syms[] = {
+ { 700, 100, "malloc" },
+ { 800, 100, "free" },
+ { 900, 100, "realloc" },
+};
+
+static struct fake_sym kernel_syms[] = {
+ { 700, 100, "schedule" },
+ { 800, 100, "page_fault" },
+ { 900, 100, "sys_perf_event_open" },
+};
+
+static struct {
+ const char *dso_name;
+ struct fake_sym *syms;
+ size_t nr_syms;
+} fake_symbols[] = {
+ { "perf", perf_syms, ARRAY_SIZE(perf_syms) },
+ { "bash", bash_syms, ARRAY_SIZE(bash_syms) },
+ { "libc", libc_syms, ARRAY_SIZE(libc_syms) },
+ { "[kernel]", kernel_syms, ARRAY_SIZE(kernel_syms) },
+};
+
+struct machine *setup_fake_machine(struct machines *machines)
+{
+ struct machine *machine = machines__find(machines, HOST_KERNEL_ID);
+ size_t i;
+
+ if (machine == NULL) {
+ pr_debug("Not enough memory for machine setup\n");
+ return NULL;
+ }
+
+ for (i = 0; i < ARRAY_SIZE(fake_threads); i++) {
+ struct thread *thread;
+
+ thread = machine__findnew_thread(machine, fake_threads[i].pid,
+ fake_threads[i].pid);
+ if (thread == NULL)
+ goto out;
+
+ thread__set_comm(thread, fake_threads[i].comm, 0);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(fake_mmap_info); i++) {
+ union perf_event fake_mmap_event = {
+ .mmap = {
+ .header = { .misc = PERF_RECORD_MISC_USER, },
+ .pid = fake_mmap_info[i].pid,
+ .tid = fake_mmap_info[i].pid,
+ .start = fake_mmap_info[i].start,
+ .len = 0x1000ULL,
+ .pgoff = 0ULL,
+ },
+ };
+
+ strcpy(fake_mmap_event.mmap.filename,
+ fake_mmap_info[i].filename);
+
+ machine__process_mmap_event(machine, &fake_mmap_event, NULL);
+ }
+
+ for (i = 0; i < ARRAY_SIZE(fake_symbols); i++) {
+ size_t k;
+ struct dso *dso;
+
+ dso = __dsos__findnew(&machine->user_dsos,
+ fake_symbols[i].dso_name);
+ if (dso == NULL)
+ goto out;
+
+ /* emulate dso__load() */
+ dso__set_loaded(dso, MAP__FUNCTION);
+
+ for (k = 0; k < fake_symbols[i].nr_syms; k++) {
+ struct symbol *sym;
+ struct fake_sym *fsym = &fake_symbols[i].syms[k];
+
+ sym = symbol__new(fsym->start, fsym->length,
+ STB_GLOBAL, fsym->name);
+ if (sym == NULL)
+ goto out;
+
+ symbols__insert(&dso->symbols[MAP__FUNCTION], sym);
+ }
+ }
+
+ return machine;
+
+out:
+ pr_debug("Not enough memory for machine setup\n");
+ machine__delete_threads(machine);
+ machine__delete(machine);
+ return NULL;
+}
diff --git a/tools/perf/tests/hists_common.h b/tools/perf/tests/hists_common.h
new file mode 100644
index 000000000000..2528b8fc105a
--- /dev/null
+++ b/tools/perf/tests/hists_common.h
@@ -0,0 +1,44 @@
+#ifndef __PERF_TESTS__HISTS_COMMON_H__
+#define __PERF_TESTS__HISTS_COMMON_H__
+
+struct machine;
+struct machines;
+
+/*
+ * The setup_fake_machine() provides a test environment which consists
+ * of 3 processes that have 3 mappings and in turn, have 3 symbols
+ * respectively. See below table:
+ *
+ * Command: Pid Shared Object Symbol
+ * ............. ............. ...................
+ * perf: 100 perf main
+ * perf: 100 perf run_command
+ * perf: 100 perf comd_record
+ * perf: 100 libc malloc
+ * perf: 100 libc free
+ * perf: 100 libc realloc
+ * perf: 100 [kernel] schedule
+ * perf: 100 [kernel] page_fault
+ * perf: 100 [kernel] sys_perf_event_open
+ * perf: 200 perf main
+ * perf: 200 perf run_command
+ * perf: 200 perf comd_record
+ * perf: 200 libc malloc
+ * perf: 200 libc free
+ * perf: 200 libc realloc
+ * perf: 200 [kernel] schedule
+ * perf: 200 [kernel] page_fault
+ * perf: 200 [kernel] sys_perf_event_open
+ * bash: 300 bash main
+ * bash: 300 bash xmalloc
+ * bash: 300 bash xfree
+ * bash: 300 libc malloc
+ * bash: 300 libc free
+ * bash: 300 libc realloc
+ * bash: 300 [kernel] schedule
+ * bash: 300 [kernel] page_fault
+ * bash: 300 [kernel] sys_perf_event_open
+ */
+struct machine *setup_fake_machine(struct machines *machines);
+
+#endif /* __PERF_TESTS__HISTS_COMMON_H__ */
diff --git a/tools/perf/tests/hists_link.c b/tools/perf/tests/hists_link.c
index 7ccbc7b6ae77..e42d6790811a 100644
--- a/tools/perf/tests/hists_link.c
+++ b/tools/perf/tests/hists_link.c
@@ -8,145 +8,7 @@
#include "machine.h"
#include "thread.h"
#include "parse-events.h"
-
-static struct {
- u32 pid;
- const char *comm;
-} fake_threads[] = {
- { 100, "perf" },
- { 200, "perf" },
- { 300, "bash" },
-};
-
-static struct {
- u32 pid;
- u64 start;
- const char *filename;
-} fake_mmap_info[] = {
- { 100, 0x40000, "perf" },
- { 100, 0x50000, "libc" },
- { 100, 0xf0000, "[kernel]" },
- { 200, 0x40000, "perf" },
- { 200, 0x50000, "libc" },
- { 200, 0xf0000, "[kernel]" },
- { 300, 0x40000, "bash" },
- { 300, 0x50000, "libc" },
- { 300, 0xf0000, "[kernel]" },
-};
-
-struct fake_sym {
- u64 start;
- u64 length;
- const char *name;
-};
-
-static struct fake_sym perf_syms[] = {
- { 700, 100, "main" },
- { 800, 100, "run_command" },
- { 900, 100, "cmd_record" },
-};
-
-static struct fake_sym bash_syms[] = {
- { 700, 100, "main" },
- { 800, 100, "xmalloc" },
- { 900, 100, "xfree" },
-};
-
-static struct fake_sym libc_syms[] = {
- { 700, 100, "malloc" },
- { 800, 100, "free" },
- { 900, 100, "realloc" },
-};
-
-static struct fake_sym kernel_syms[] = {
- { 700, 100, "schedule" },
- { 800, 100, "page_fault" },
- { 900, 100, "sys_perf_event_open" },
-};
-
-static struct {
- const char *dso_name;
- struct fake_sym *syms;
- size_t nr_syms;
-} fake_symbols[] = {
- { "perf", perf_syms, ARRAY_SIZE(perf_syms) },
- { "bash", bash_syms, ARRAY_SIZE(bash_syms) },
- { "libc", libc_syms, ARRAY_SIZE(libc_syms) },
- { "[kernel]", kernel_syms, ARRAY_SIZE(kernel_syms) },
-};
-
-static struct machine *setup_fake_machine(struct machines *machines)
-{
- struct machine *machine = machines__find(machines, HOST_KERNEL_ID);
- size_t i;
-
- if (machine == NULL) {
- pr_debug("Not enough memory for machine setup\n");
- return NULL;
- }
-
- for (i = 0; i < ARRAY_SIZE(fake_threads); i++) {
- struct thread *thread;
-
- thread = machine__findnew_thread(machine, fake_threads[i].pid,
- fake_threads[i].pid);
- if (thread == NULL)
- goto out;
-
- thread__set_comm(thread, fake_threads[i].comm, 0);
- }
-
- for (i = 0; i < ARRAY_SIZE(fake_mmap_info); i++) {
- union perf_event fake_mmap_event = {
- .mmap = {
- .header = { .misc = PERF_RECORD_MISC_USER, },
- .pid = fake_mmap_info[i].pid,
- .tid = fake_mmap_info[i].pid,
- .start = fake_mmap_info[i].start,
- .len = 0x1000ULL,
- .pgoff = 0ULL,
- },
- };
-
- strcpy(fake_mmap_event.mmap.filename,
- fake_mmap_info[i].filename);
-
- machine__process_mmap_event(machine, &fake_mmap_event, NULL);
- }
-
- for (i = 0; i < ARRAY_SIZE(fake_symbols); i++) {
- size_t k;
- struct dso *dso;
-
- dso = __dsos__findnew(&machine->user_dsos,
- fake_symbols[i].dso_name);
- if (dso == NULL)
- goto out;
-
- /* emulate dso__load() */
- dso__set_loaded(dso, MAP__FUNCTION);
-
- for (k = 0; k < fake_symbols[i].nr_syms; k++) {
- struct symbol *sym;
- struct fake_sym *fsym = &fake_symbols[i].syms[k];
-
- sym = symbol__new(fsym->start, fsym->length,
- STB_GLOBAL, fsym->name);
- if (sym == NULL)
- goto out;
-
- symbols__insert(&dso->symbols[MAP__FUNCTION], sym);
- }
- }
-
- return machine;
-
-out:
- pr_debug("Not enough memory for machine setup\n");
- machine__delete_threads(machine);
- machine__delete(machine);
- return NULL;
-}
+#include "hists_common.h"
struct sample {
u32 pid;
@@ -156,6 +18,7 @@ struct sample {
struct symbol *sym;
};
+/* For the numbers, see hists_common.c */
static struct sample fake_common_samples[] = {
/* perf [kernel] schedule() */
{ .pid = 100, .ip = 0xf0000 + 700, },
--
1.9.2
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