151 lines
3.0 KiB
C
151 lines
3.0 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <linux/compiler.h>
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#include <linux/string.h>
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#include <sys/mman.h>
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#include <limits.h>
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#include "debug.h"
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#include "dso.h"
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#include "machine.h"
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#include "thread.h"
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#include "symbol.h"
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#include "map.h"
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#include "util.h"
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#include "tests.h"
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struct test_info {
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struct machine *machine;
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struct thread *thread;
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};
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static int init_test_info(struct test_info *ti)
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{
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ti->machine = machine__new_host();
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if (!ti->machine) {
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pr_debug("machine__new_host() failed!\n");
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return TEST_FAIL;
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}
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/* Create a dummy thread */
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ti->thread = machine__findnew_thread(ti->machine, 100, 100);
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if (!ti->thread) {
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pr_debug("machine__findnew_thread() failed!\n");
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return TEST_FAIL;
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}
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return TEST_OK;
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}
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static void exit_test_info(struct test_info *ti)
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{
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thread__put(ti->thread);
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machine__delete(ti->machine);
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}
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static void get_test_dso_filename(char *filename, size_t max_sz)
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{
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if (dso_to_test)
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strlcpy(filename, dso_to_test, max_sz);
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else
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perf_exe(filename, max_sz);
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}
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static int create_map(struct test_info *ti, char *filename, struct map **map_p)
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{
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/* Create a dummy map at 0x100000 */
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*map_p = map__new(ti->machine, 0x100000, 0xffffffff, 0, NULL,
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PROT_EXEC, 0, NULL, filename, ti->thread);
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if (!*map_p) {
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pr_debug("Failed to create map!");
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return TEST_FAIL;
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}
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return TEST_OK;
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}
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static int test_dso(struct dso *dso)
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{
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struct symbol *last_sym = NULL;
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struct rb_node *nd;
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int ret = TEST_OK;
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/* dso__fprintf() prints all the symbols */
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if (verbose > 1)
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dso__fprintf(dso, stderr);
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for (nd = rb_first_cached(&dso->symbols); nd; nd = rb_next(nd)) {
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struct symbol *sym = rb_entry(nd, struct symbol, rb_node);
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if (sym->type != STT_FUNC && sym->type != STT_GNU_IFUNC)
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continue;
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/* Check for overlapping function symbols */
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if (last_sym && sym->start < last_sym->end) {
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pr_debug("Overlapping symbols:\n");
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symbol__fprintf(last_sym, stderr);
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symbol__fprintf(sym, stderr);
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ret = TEST_FAIL;
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}
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/* Check for zero-length function symbol */
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if (sym->start == sym->end) {
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pr_debug("Zero-length symbol:\n");
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symbol__fprintf(sym, stderr);
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ret = TEST_FAIL;
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}
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last_sym = sym;
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}
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return ret;
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}
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static int test_file(struct test_info *ti, char *filename)
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{
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struct map *map = NULL;
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int ret, nr;
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pr_debug("Testing %s\n", filename);
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ret = create_map(ti, filename, &map);
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if (ret != TEST_OK)
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return ret;
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nr = dso__load(map->dso, map);
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if (nr < 0) {
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pr_debug("dso__load() failed!\n");
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ret = TEST_FAIL;
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goto out_put;
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}
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if (nr == 0) {
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pr_debug("DSO has no symbols!\n");
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ret = TEST_SKIP;
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goto out_put;
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}
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ret = test_dso(map->dso);
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out_put:
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map__put(map);
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return ret;
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}
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static int test__symbols(struct test_suite *test __maybe_unused, int subtest __maybe_unused)
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{
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char filename[PATH_MAX];
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struct test_info ti;
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int ret;
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ret = init_test_info(&ti);
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if (ret != TEST_OK)
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return ret;
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get_test_dso_filename(filename, sizeof(filename));
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ret = test_file(&ti, filename);
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exit_test_info(&ti);
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return ret;
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}
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DEFINE_SUITE("Symbols", symbols);
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