// SPDX-License-Identifier: GPL-2.0
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#include <inttypes.h>
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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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#include <linux/kernel.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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{ FAKE_PID_PERF1, "perf" },
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{ FAKE_PID_PERF2, "perf" },
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{ FAKE_PID_BASH, "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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{ FAKE_PID_PERF1, FAKE_MAP_PERF, "perf" },
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{ FAKE_PID_PERF1, FAKE_MAP_LIBC, "libc" },
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{ FAKE_PID_PERF1, FAKE_MAP_KERNEL, "[kernel]" },
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{ FAKE_PID_PERF2, FAKE_MAP_PERF, "perf" },
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{ FAKE_PID_PERF2, FAKE_MAP_LIBC, "libc" },
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{ FAKE_PID_PERF2, FAKE_MAP_KERNEL, "[kernel]" },
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{ FAKE_PID_BASH, FAKE_MAP_BASH, "bash" },
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{ FAKE_PID_BASH, FAKE_MAP_LIBC, "libc" },
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{ FAKE_PID_BASH, FAKE_MAP_KERNEL, "[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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{ FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "main" },
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{ FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "run_command" },
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{ FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "cmd_record" },
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};
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static struct fake_sym bash_syms[] = {
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{ FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "main" },
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{ FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "xmalloc" },
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{ FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "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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{ FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "malloc" },
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{ FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "free" },
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{ FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "realloc" },
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};
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static struct fake_sym kernel_syms[] = {
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{ FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "schedule" },
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{ FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "page_fault" },
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{ FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "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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thread__put(thread);
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}
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for (i = 0; i < ARRAY_SIZE(fake_mmap_info); i++) {
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struct perf_sample sample = {
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.cpumode = PERF_RECORD_MISC_USER,
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};
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union perf_event fake_mmap_event = {
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.mmap = {
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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 = FAKE_MAP_LENGTH,
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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, &sample);
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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 = machine__findnew_dso(machine, 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);
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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, STT_FUNC, fsym->name);
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if (sym == NULL) {
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dso__put(dso);
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goto out;
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}
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symbols__insert(&dso->symbols, sym);
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}
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dso__put(dso);
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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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return NULL;
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}
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void print_hists_in(struct hists *hists)
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{
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int i = 0;
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struct rb_root *root;
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struct rb_node *node;
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if (hists__has(hists, need_collapse))
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root = &hists->entries_collapsed;
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else
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root = hists->entries_in;
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pr_info("----- %s --------\n", __func__);
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node = rb_first(root);
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while (node) {
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struct hist_entry *he;
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he = rb_entry(node, struct hist_entry, rb_node_in);
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if (!he->filtered) {
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pr_info("%2d: entry: %-8s [%-8s] %20s: period = %"PRIu64"\n",
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i, thread__comm_str(he->thread),
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he->ms.map->dso->short_name,
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he->ms.sym->name, he->stat.period);
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}
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i++;
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node = rb_next(node);
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}
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}
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void print_hists_out(struct hists *hists)
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{
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int i = 0;
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struct rb_root *root;
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struct rb_node *node;
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root = &hists->entries;
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pr_info("----- %s --------\n", __func__);
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node = rb_first(root);
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while (node) {
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struct hist_entry *he;
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he = rb_entry(node, struct hist_entry, rb_node);
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if (!he->filtered) {
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pr_info("%2d: entry: %8s:%5d [%-8s] %20s: period = %"PRIu64"/%"PRIu64"\n",
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i, thread__comm_str(he->thread), he->thread->tid,
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he->ms.map->dso->short_name,
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he->ms.sym->name, he->stat.period,
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he->stat_acc ? he->stat_acc->period : 0);
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}
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i++;
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node = rb_next(node);
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}
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}
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