perf tests: Factor out fake_setup_machine()
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@kernel.org> Link: http://lkml.kernel.org/r/1398396494-12811-1-git-send-email-namhyung@kernel.org Signed-off-by: Jiri Olsa <jolsa@kernel.org>hifive-unleashed-5.1
Namhyung Kim
Jiri Olsa
parent
2933d7813d
commit
6e344a952d
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@ -397,6 +397,7 @@ LIB_OBJS += $(OUTPUT)tests/rdpmc.o
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LIB_OBJS += $(OUTPUT)tests/evsel-roundtrip-name.o
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LIB_OBJS += $(OUTPUT)tests/evsel-tp-sched.o
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LIB_OBJS += $(OUTPUT)tests/pmu.o
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LIB_OBJS += $(OUTPUT)tests/hists_common.o
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LIB_OBJS += $(OUTPUT)tests/hists_link.o
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LIB_OBJS += $(OUTPUT)tests/python-use.o
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LIB_OBJS += $(OUTPUT)tests/bp_signal.o
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@ -0,0 +1,148 @@
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#include "perf.h"
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#include "util/debug.h"
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#include "util/symbol.h"
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#include "util/sort.h"
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#include "util/evsel.h"
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#include "util/evlist.h"
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#include "util/machine.h"
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#include "util/thread.h"
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#include "tests/hists_common.h"
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static struct {
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u32 pid;
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const char *comm;
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} fake_threads[] = {
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{ 100, "perf" },
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{ 200, "perf" },
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{ 300, "bash" },
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};
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static struct {
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u32 pid;
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u64 start;
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const char *filename;
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} fake_mmap_info[] = {
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{ 100, 0x40000, "perf" },
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{ 100, 0x50000, "libc" },
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{ 100, 0xf0000, "[kernel]" },
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{ 200, 0x40000, "perf" },
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{ 200, 0x50000, "libc" },
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{ 200, 0xf0000, "[kernel]" },
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{ 300, 0x40000, "bash" },
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{ 300, 0x50000, "libc" },
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{ 300, 0xf0000, "[kernel]" },
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};
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struct fake_sym {
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u64 start;
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u64 length;
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const char *name;
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};
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static struct fake_sym perf_syms[] = {
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{ 700, 100, "main" },
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{ 800, 100, "run_command" },
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{ 900, 100, "cmd_record" },
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};
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static struct fake_sym bash_syms[] = {
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{ 700, 100, "main" },
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{ 800, 100, "xmalloc" },
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{ 900, 100, "xfree" },
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};
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static struct fake_sym libc_syms[] = {
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{ 700, 100, "malloc" },
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{ 800, 100, "free" },
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{ 900, 100, "realloc" },
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};
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static struct fake_sym kernel_syms[] = {
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{ 700, 100, "schedule" },
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{ 800, 100, "page_fault" },
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{ 900, 100, "sys_perf_event_open" },
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};
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static struct {
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const char *dso_name;
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struct fake_sym *syms;
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size_t nr_syms;
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} fake_symbols[] = {
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{ "perf", perf_syms, ARRAY_SIZE(perf_syms) },
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{ "bash", bash_syms, ARRAY_SIZE(bash_syms) },
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{ "libc", libc_syms, ARRAY_SIZE(libc_syms) },
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{ "[kernel]", kernel_syms, ARRAY_SIZE(kernel_syms) },
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};
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struct machine *setup_fake_machine(struct machines *machines)
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{
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struct machine *machine = machines__find(machines, HOST_KERNEL_ID);
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size_t i;
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if (machine == NULL) {
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pr_debug("Not enough memory for machine setup\n");
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return NULL;
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}
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for (i = 0; i < ARRAY_SIZE(fake_threads); i++) {
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struct thread *thread;
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thread = machine__findnew_thread(machine, fake_threads[i].pid,
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fake_threads[i].pid);
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if (thread == NULL)
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goto out;
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thread__set_comm(thread, fake_threads[i].comm, 0);
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}
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for (i = 0; i < ARRAY_SIZE(fake_mmap_info); i++) {
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union perf_event fake_mmap_event = {
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.mmap = {
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.header = { .misc = PERF_RECORD_MISC_USER, },
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.pid = fake_mmap_info[i].pid,
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.tid = fake_mmap_info[i].pid,
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.start = fake_mmap_info[i].start,
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.len = 0x1000ULL,
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.pgoff = 0ULL,
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},
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};
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strcpy(fake_mmap_event.mmap.filename,
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fake_mmap_info[i].filename);
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machine__process_mmap_event(machine, &fake_mmap_event, NULL);
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}
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for (i = 0; i < ARRAY_SIZE(fake_symbols); i++) {
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size_t k;
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struct dso *dso;
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dso = __dsos__findnew(&machine->user_dsos,
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fake_symbols[i].dso_name);
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if (dso == NULL)
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goto out;
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/* emulate dso__load() */
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dso__set_loaded(dso, MAP__FUNCTION);
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for (k = 0; k < fake_symbols[i].nr_syms; k++) {
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struct symbol *sym;
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struct fake_sym *fsym = &fake_symbols[i].syms[k];
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sym = symbol__new(fsym->start, fsym->length,
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STB_GLOBAL, fsym->name);
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if (sym == NULL)
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goto out;
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symbols__insert(&dso->symbols[MAP__FUNCTION], sym);
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}
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}
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return machine;
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out:
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pr_debug("Not enough memory for machine setup\n");
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machine__delete_threads(machine);
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machine__delete(machine);
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return NULL;
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}
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@ -0,0 +1,44 @@
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#ifndef __PERF_TESTS__HISTS_COMMON_H__
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#define __PERF_TESTS__HISTS_COMMON_H__
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struct machine;
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struct machines;
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/*
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* The setup_fake_machine() provides a test environment which consists
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* of 3 processes that have 3 mappings and in turn, have 3 symbols
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* respectively. See below table:
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*
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* Command: Pid Shared Object Symbol
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* ............. ............. ...................
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* perf: 100 perf main
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* perf: 100 perf run_command
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* perf: 100 perf comd_record
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* perf: 100 libc malloc
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* perf: 100 libc free
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* perf: 100 libc realloc
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* perf: 100 [kernel] schedule
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* perf: 100 [kernel] page_fault
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* perf: 100 [kernel] sys_perf_event_open
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* perf: 200 perf main
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* perf: 200 perf run_command
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* perf: 200 perf comd_record
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* perf: 200 libc malloc
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* perf: 200 libc free
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* perf: 200 libc realloc
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* perf: 200 [kernel] schedule
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* perf: 200 [kernel] page_fault
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* perf: 200 [kernel] sys_perf_event_open
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* bash: 300 bash main
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* bash: 300 bash xmalloc
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* bash: 300 bash xfree
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* bash: 300 libc malloc
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* bash: 300 libc free
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* bash: 300 libc realloc
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* bash: 300 [kernel] schedule
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* bash: 300 [kernel] page_fault
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* bash: 300 [kernel] sys_perf_event_open
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*/
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struct machine *setup_fake_machine(struct machines *machines);
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#endif /* __PERF_TESTS__HISTS_COMMON_H__ */
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@ -8,145 +8,7 @@
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#include "machine.h"
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#include "thread.h"
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#include "parse-events.h"
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static struct {
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u32 pid;
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const char *comm;
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} fake_threads[] = {
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{ 100, "perf" },
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{ 200, "perf" },
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{ 300, "bash" },
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};
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static struct {
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u32 pid;
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u64 start;
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const char *filename;
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} fake_mmap_info[] = {
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{ 100, 0x40000, "perf" },
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{ 100, 0x50000, "libc" },
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{ 100, 0xf0000, "[kernel]" },
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{ 200, 0x40000, "perf" },
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{ 200, 0x50000, "libc" },
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{ 200, 0xf0000, "[kernel]" },
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{ 300, 0x40000, "bash" },
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{ 300, 0x50000, "libc" },
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{ 300, 0xf0000, "[kernel]" },
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};
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struct fake_sym {
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u64 start;
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u64 length;
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const char *name;
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};
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static struct fake_sym perf_syms[] = {
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{ 700, 100, "main" },
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{ 800, 100, "run_command" },
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{ 900, 100, "cmd_record" },
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};
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static struct fake_sym bash_syms[] = {
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{ 700, 100, "main" },
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{ 800, 100, "xmalloc" },
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{ 900, 100, "xfree" },
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};
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static struct fake_sym libc_syms[] = {
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{ 700, 100, "malloc" },
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{ 800, 100, "free" },
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{ 900, 100, "realloc" },
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};
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static struct fake_sym kernel_syms[] = {
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{ 700, 100, "schedule" },
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{ 800, 100, "page_fault" },
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{ 900, 100, "sys_perf_event_open" },
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};
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static struct {
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const char *dso_name;
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struct fake_sym *syms;
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size_t nr_syms;
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} fake_symbols[] = {
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{ "perf", perf_syms, ARRAY_SIZE(perf_syms) },
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{ "bash", bash_syms, ARRAY_SIZE(bash_syms) },
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{ "libc", libc_syms, ARRAY_SIZE(libc_syms) },
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{ "[kernel]", kernel_syms, ARRAY_SIZE(kernel_syms) },
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};
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static struct machine *setup_fake_machine(struct machines *machines)
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{
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struct machine *machine = machines__find(machines, HOST_KERNEL_ID);
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size_t i;
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if (machine == NULL) {
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pr_debug("Not enough memory for machine setup\n");
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return NULL;
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}
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for (i = 0; i < ARRAY_SIZE(fake_threads); i++) {
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struct thread *thread;
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thread = machine__findnew_thread(machine, fake_threads[i].pid,
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fake_threads[i].pid);
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if (thread == NULL)
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goto out;
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thread__set_comm(thread, fake_threads[i].comm, 0);
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}
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for (i = 0; i < ARRAY_SIZE(fake_mmap_info); i++) {
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union perf_event fake_mmap_event = {
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.mmap = {
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.header = { .misc = PERF_RECORD_MISC_USER, },
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.pid = fake_mmap_info[i].pid,
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.tid = fake_mmap_info[i].pid,
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.start = fake_mmap_info[i].start,
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.len = 0x1000ULL,
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.pgoff = 0ULL,
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},
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};
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strcpy(fake_mmap_event.mmap.filename,
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fake_mmap_info[i].filename);
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machine__process_mmap_event(machine, &fake_mmap_event, NULL);
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}
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for (i = 0; i < ARRAY_SIZE(fake_symbols); i++) {
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size_t k;
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struct dso *dso;
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dso = __dsos__findnew(&machine->user_dsos,
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fake_symbols[i].dso_name);
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if (dso == NULL)
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goto out;
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/* emulate dso__load() */
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dso__set_loaded(dso, MAP__FUNCTION);
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for (k = 0; k < fake_symbols[i].nr_syms; k++) {
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struct symbol *sym;
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struct fake_sym *fsym = &fake_symbols[i].syms[k];
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sym = symbol__new(fsym->start, fsym->length,
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STB_GLOBAL, fsym->name);
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if (sym == NULL)
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goto out;
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symbols__insert(&dso->symbols[MAP__FUNCTION], sym);
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}
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}
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return machine;
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out:
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pr_debug("Not enough memory for machine setup\n");
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machine__delete_threads(machine);
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machine__delete(machine);
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return NULL;
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}
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#include "hists_common.h"
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struct sample {
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u32 pid;
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@ -156,6 +18,7 @@ struct sample {
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struct symbol *sym;
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};
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/* For the numbers, see hists_common.c */
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static struct sample fake_common_samples[] = {
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/* perf [kernel] schedule() */
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{ .pid = 100, .ip = 0xf0000 + 700, },
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