#include "util.h" #include <stdlib.h>#include <sys/types.h>#include <sys/stat.h>#include <fcntl.h>#include <string.h> #include "machine.h"#include "symbol.h"#include "tests.h" static char *test_file(int size){	static char buf_templ[] = "/tmp/test-XXXXXX";	char *templ = buf_templ;	int fd, i;	unsigned char *buf; 	fd = mkstemp(templ);	if (fd < 0) {		perror("mkstemp failed");		return NULL;	} 	buf = malloc(size);	if (!buf) {		close(fd);		return NULL;	} 	for (i = 0; i < size; i++)		buf[i] = (unsigned char) ((int) i % 10); 	if (size != write(fd, buf, size))		templ = NULL; 	free(buf);	close(fd);	return templ;} #define TEST_FILE_SIZE (DSO__DATA_CACHE_SIZE * 20) struct test_data_offset {	off_t offset;	u8 data[10];	int size;}; struct test_data_offset offsets[] = {	/* Fill first cache page. */	{		.offset = 10,		.data   = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },		.size   = 10,	},	/* Read first cache page. */	{		.offset = 10,		.data   = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },		.size   = 10,	},	/* Fill cache boundary pages. */	{		.offset = DSO__DATA_CACHE_SIZE - DSO__DATA_CACHE_SIZE % 10,		.data   = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },		.size   = 10,	},	/* Read cache boundary pages. */	{		.offset = DSO__DATA_CACHE_SIZE - DSO__DATA_CACHE_SIZE % 10,		.data   = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },		.size   = 10,	},	/* Fill final cache page. */	{		.offset = TEST_FILE_SIZE - 10,		.data   = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },		.size   = 10,	},	/* Read final cache page. */	{		.offset = TEST_FILE_SIZE - 10,		.data   = { 0, 1, 2, 3, 4, 5, 6, 7, 8, 9 },		.size   = 10,	},	/* Read final cache page. */	{		.offset = TEST_FILE_SIZE - 3,		.data   = { 7, 8, 9, 0, 0, 0, 0, 0, 0, 0 },		.size   = 3,	},}; int test__dso_data(void){	struct machine machine;	struct dso *dso;	char *file = test_file(TEST_FILE_SIZE);	size_t i; 	TEST_ASSERT_VAL("No test file", file); 	memset(&machine, 0, sizeof(machine)); 	dso = dso__new((const char *)file); 	/* Basic 10 bytes tests. */	for (i = 0; i < ARRAY_SIZE(offsets); i++) {		struct test_data_offset *data = &offsets[i];		ssize_t size;		u8 buf[10]; 		memset(buf, 0, 10);		size = dso__data_read_offset(dso, &machine, data->offset,				     buf, 10); 		TEST_ASSERT_VAL("Wrong size", size == data->size);		TEST_ASSERT_VAL("Wrong data", !memcmp(buf, data->data, 10));	} 	/* Read cross multiple cache pages. */	{		ssize_t size;		int c;		u8 *buf; 		buf = malloc(TEST_FILE_SIZE);		TEST_ASSERT_VAL("ENOMEM\n", buf); 		/* First iteration to fill caches, second one to read them. */		for (c = 0; c < 2; c++) {			memset(buf, 0, TEST_FILE_SIZE);			size = dso__data_read_offset(dso, &machine, 10,						     buf, TEST_FILE_SIZE); 			TEST_ASSERT_VAL("Wrong size",				size == (TEST_FILE_SIZE - 10)); 			for (i = 0; i < (size_t)size; i++)				TEST_ASSERT_VAL("Wrong data",					buf[i] == (i % 10));		} 		free(buf);	} 	dso__delete(dso);	unlink(file);	return 0;}