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// SPDX-License-Identifier: GPL-2.0
#include <inttypes.h>
#include "util/debug.h"
#include "util/dso.h"
#include "util/event.h" // struct perf_sample
#include "util/map.h"
#include "util/symbol.h"
#include "util/sort.h"
#include "util/evsel.h"
#include "util/machine.h"
#include "util/thread.h"
#include "tests/hists_common.h"
#include <linux/kernel.h>
#include <linux/perf_event.h>
static struct {
u32 pid;
const char *comm;
} fake_threads[] = {
{ FAKE_PID_PERF1, "perf" },
{ FAKE_PID_PERF2, "perf" },
{ FAKE_PID_BASH, "bash" },
};
static struct {
u32 pid;
u64 start;
const char *filename;
} fake_mmap_info[] = {
{ FAKE_PID_PERF1, FAKE_MAP_PERF, "perf" },
{ FAKE_PID_PERF1, FAKE_MAP_LIBC, "libc" },
{ FAKE_PID_PERF1, FAKE_MAP_KERNEL, "[kernel]" },
{ FAKE_PID_PERF2, FAKE_MAP_PERF, "perf" },
{ FAKE_PID_PERF2, FAKE_MAP_LIBC, "libc" },
{ FAKE_PID_PERF2, FAKE_MAP_KERNEL, "[kernel]" },
{ FAKE_PID_BASH, FAKE_MAP_BASH, "bash" },
{ FAKE_PID_BASH, FAKE_MAP_LIBC, "libc" },
{ FAKE_PID_BASH, FAKE_MAP_KERNEL, "[kernel]" },
};
struct fake_sym {
u64 start;
u64 length;
const char *name;
};
static struct fake_sym perf_syms[] = {
{ FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "main" },
{ FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "run_command" },
{ FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "cmd_record" },
};
static struct fake_sym bash_syms[] = {
{ FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "main" },
{ FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "xmalloc" },
{ FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "xfree" },
};
static struct fake_sym libc_syms[] = {
{ 700, 100, "malloc" },
{ 800, 100, "free" },
{ 900, 100, "realloc" },
{ FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "malloc" },
{ FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "free" },
{ FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "realloc" },
};
static struct fake_sym kernel_syms[] = {
{ FAKE_SYM_OFFSET1, FAKE_SYM_LENGTH, "schedule" },
{ FAKE_SYM_OFFSET2, FAKE_SYM_LENGTH, "page_fault" },
{ FAKE_SYM_OFFSET3, FAKE_SYM_LENGTH, "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);
thread__put(thread);
}
for (i = 0; i < ARRAY_SIZE(fake_mmap_info); i++) {
struct perf_sample sample = {
.cpumode = PERF_RECORD_MISC_USER,
};
union perf_event fake_mmap_event = {
.mmap = {
.pid = fake_mmap_info[i].pid,
.tid = fake_mmap_info[i].pid,
.start = fake_mmap_info[i].start,
.len = FAKE_MAP_LENGTH,
.pgoff = 0ULL,
},
};
strcpy(fake_mmap_event.mmap.filename,
fake_mmap_info[i].filename);
machine__process_mmap_event(machine, &fake_mmap_event, &sample);
}
for (i = 0; i < ARRAY_SIZE(fake_symbols); i++) {
size_t k;
struct dso *dso;
dso = machine__findnew_dso(machine, fake_symbols[i].dso_name);
if (dso == NULL)
goto out;
/* emulate dso__load() */
dso__set_loaded(dso);
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, STT_FUNC, fsym->name);
if (sym == NULL) {
dso__put(dso);
goto out;
}
symbols__insert(&dso->symbols, sym);
}
dso__put(dso);
}
return machine;
out:
pr_debug("Not enough memory for machine setup\n");
machine__delete_threads(machine);
return NULL;
}
void print_hists_in(struct hists *hists)
{
int i = 0;
struct rb_root_cached *root;
struct rb_node *node;
if (hists__has(hists, need_collapse))
root = &hists->entries_collapsed;
else
root = hists->entries_in;
pr_info("----- %s --------\n", __func__);
node = rb_first_cached(root);
while (node) {
struct hist_entry *he;
he = rb_entry(node, struct hist_entry, rb_node_in);
if (!he->filtered) {
pr_info("%2d: entry: %-8s [%-8s] %20s: period = %"PRIu64"\n",
i, thread__comm_str(he->thread),
he->ms.map->dso->short_name,
he->ms.sym->name, he->stat.period);
}
i++;
node = rb_next(node);
}
}
void print_hists_out(struct hists *hists)
{
int i = 0;
struct rb_root_cached *root;
struct rb_node *node;
root = &hists->entries;
pr_info("----- %s --------\n", __func__);
node = rb_first_cached(root);
while (node) {
struct hist_entry *he;
he = rb_entry(node, struct hist_entry, rb_node);
if (!he->filtered) {
pr_info("%2d: entry: %8s:%5d [%-8s] %20s: period = %"PRIu64"/%"PRIu64"\n",
i, thread__comm_str(he->thread), he->thread->tid,
he->ms.map->dso->short_name,
he->ms.sym->name, he->stat.period,
he->stat_acc ? he->stat_acc->period : 0);
}
i++;
node = rb_next(node);
}
}
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