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	It is useful to be able to find hex values and strings in a memory range. Add a command to support this. cmd: Fix 'md' and add a memory-search command At present 'md.q' is broken. This series provides a fix for this. It also implements a new memory-search command called 'ms'. It allows searching memory for hex and string data. END Signed-off-by: Simon Glass <sjg@chromium.org>
		
			
				
	
	
		
			276 lines
		
	
	
		
			7.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
			
		
		
	
	
			276 lines
		
	
	
		
			7.7 KiB
		
	
	
	
		
			C
		
	
	
	
	
	
// SPDX-License-Identifier: GPL-2.0+
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/*
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 * Tests for memory commands
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 *
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 * Copyright 2020 Google LLC
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 * Written by Simon Glass <sjg@chromium.org>
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 */
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#include <common.h>
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#include <console.h>
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#include <mapmem.h>
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#include <dm/test.h>
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#include <test/ut.h>
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#define BUF_SIZE	0x100
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/* Test 'ms' command with bytes */
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static int dm_test_ms_b(struct unit_test_state *uts)
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{
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	u8 *buf;
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	buf = map_sysmem(0, BUF_SIZE + 1);
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	memset(buf, '\0', BUF_SIZE);
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	buf[0x0] = 0x12;
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	buf[0x31] = 0x12;
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	buf[0xff] = 0x12;
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	buf[0x100] = 0x12;
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	console_record_reset();
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	run_command("ms.b 1 ff 12", 0);
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	ut_assert_nextline("00000030: 00 12 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................");
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	ut_assert_nextline("--");
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	ut_assert_nextline("000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 12    ................");
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	ut_assert_nextline("2 matches");
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	ut_assert_console_end();
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	ut_asserteq(2, env_get_hex("memmatches", 0));
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	ut_asserteq(0xff, env_get_hex("memaddr", 0));
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	ut_asserteq(0xfe, env_get_hex("mempos", 0));
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	unmap_sysmem(buf);
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	return 0;
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}
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DM_TEST(dm_test_ms_b, 0);
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/* Test 'ms' command with 16-bit values */
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static int dm_test_ms_w(struct unit_test_state *uts)
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{
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	u16 *buf;
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	buf = map_sysmem(0, BUF_SIZE + 2);
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	memset(buf, '\0', BUF_SIZE);
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	buf[0x34 / 2] = 0x1234;
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	buf[BUF_SIZE / 2] = 0x1234;
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	console_record_reset();
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	run_command("ms.w 0 80 1234", 0);
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	ut_assert_nextline("00000030: 0000 0000 1234 0000 0000 0000 0000 0000    ....4...........");
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	ut_assert_nextline("1 match");
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	ut_assert_console_end();
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	ut_asserteq(1, env_get_hex("memmatches", 0));
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	ut_asserteq(0x34, env_get_hex("memaddr", 0));
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	ut_asserteq(0x34 / 2, env_get_hex("mempos", 0));
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	unmap_sysmem(buf);
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	return 0;
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}
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DM_TEST(dm_test_ms_w, 0);
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/* Test 'ms' command with 32-bit values */
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static int dm_test_ms_l(struct unit_test_state *uts)
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{
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	u32 *buf;
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	buf = map_sysmem(0, BUF_SIZE + 4);
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	memset(buf, '\0', BUF_SIZE);
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	buf[0x38 / 4] = 0x12345678;
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	buf[BUF_SIZE / 4] = 0x12345678;
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	console_record_reset();
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	run_command("ms 0 40 12345678", 0);
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	ut_assert_nextline("00000030: 00000000 00000000 12345678 00000000    ........xV4.....");
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	ut_assert_nextline("1 match");
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	ut_assert_console_end();
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	ut_asserteq(1, env_get_hex("memmatches", 0));
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	ut_asserteq(0x38, env_get_hex("memaddr", 0));
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	ut_asserteq(0x38 / 4, env_get_hex("mempos", 0));
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	console_record_reset();
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	run_command("ms 0 80 12345679", 0);
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	ut_assert_nextline("0 matches");
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	ut_assert_console_end();
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	ut_asserteq(0, env_get_hex("memmatches", 0));
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	ut_asserteq(0, env_get_hex("memaddr", 0));
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	ut_asserteq(0 / 4, env_get_hex("mempos", 0));
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	unmap_sysmem(buf);
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	return 0;
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}
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DM_TEST(dm_test_ms_l, 0);
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/* Test 'ms' command with continuation */
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static int dm_test_ms_cont(struct unit_test_state *uts)
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{
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	char *const args[] = {"ms.b", "0", "100", "34"};
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	int repeatable;
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	u8 *buf;
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	int i;
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	buf = map_sysmem(0, BUF_SIZE);
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	memset(buf, '\0', BUF_SIZE);
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	for (i = 5; i < 0x33; i += 3)
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		buf[i] = 0x34;
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	console_record_reset();
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	run_command("ms.b 0 100 34", 0);
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	ut_assert_nextlinen("00000000: 00 00 00 00 00 34 00 00 34 00 00 34 00 00 34 00");
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	ut_assert_nextline("--");
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	ut_assert_nextlinen("00000010: 00 34 00 00 34 00 00 34 00 00 34 00 00 34 00 00");
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	ut_assert_nextline("--");
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	ut_assert_nextlinen("00000020: 34 00 00 34 00 00 34 00 00 34 00 00 34 00 00 34");
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	ut_assert_nextlinen("10 matches (repeat command to check for more)");
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	ut_assert_console_end();
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	ut_asserteq(10, env_get_hex("memmatches", 0));
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	ut_asserteq(0x20, env_get_hex("memaddr", 0));
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	ut_asserteq(0x20, env_get_hex("mempos", 0));
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	/*
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	 * run_command() ignoes the repeatable flag when using hush, so call
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	 * cmd_process() directly
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	 */
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	console_record_reset();
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	cmd_process(CMD_FLAG_REPEAT, 4, args, &repeatable, NULL);
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	ut_assert_nextlinen("00000020: 34 00 00 34 00 00 34 00 00 34 00 00 34 00 00 34");
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	ut_assert_nextline("--");
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	ut_assert_nextlinen("00000030: 00 00 34 00 00 00 00 00");
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	ut_assert_nextlinen("6 matches");
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	ut_assert_console_end();
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	ut_asserteq(6, env_get_hex("memmatches", 0));
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	ut_asserteq(0x32, env_get_hex("memaddr", 0));
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	/* 0x32 less 0x21, where the second search started */
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	ut_asserteq(0x11, env_get_hex("mempos", 0));
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	unmap_sysmem(buf);
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	return 0;
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}
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DM_TEST(dm_test_ms_cont, 0);
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/* Test 'ms' command with multiple values */
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static int dm_test_ms_mult(struct unit_test_state *uts)
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{
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	static const char str[] = "hello";
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	char *buf;
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	buf = map_sysmem(0, BUF_SIZE + 5);
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	memset(buf, '\0', BUF_SIZE);
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	strcpy(buf + 0x1e, str);
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	strcpy(buf + 0x63, str);
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	strcpy(buf + BUF_SIZE - strlen(str) + 1, str);
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	console_record_reset();
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	run_command("ms.b 0 100 68 65 6c 6c 6f", 0);
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	ut_assert_nextline("00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 68 65    ..............he");
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	ut_assert_nextline("00000020: 6c 6c 6f 00 00 00 00 00 00 00 00 00 00 00 00 00    llo.............");
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	ut_assert_nextline("--");
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	ut_assert_nextline("00000060: 00 00 00 68 65 6c 6c 6f 00 00 00 00 00 00 00 00    ...hello........");
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	ut_assert_nextline("2 matches");
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	ut_assert_console_end();
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	unmap_sysmem(buf);
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	ut_asserteq(2, env_get_hex("memmatches", 0));
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	ut_asserteq(0x63, env_get_hex("memaddr", 0));
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	ut_asserteq(0x63, env_get_hex("mempos", 0));
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	return 0;
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}
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DM_TEST(dm_test_ms_mult, 0);
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/* Test 'ms' command with string */
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static int dm_test_ms_s(struct unit_test_state *uts)
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{
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	static const char str[] = "hello";
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	static const char str2[] = "hellothere";
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	char *buf;
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	buf = map_sysmem(0, BUF_SIZE);
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	memset(buf, '\0', BUF_SIZE);
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	strcpy(buf + 0x1e, str);
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	strcpy(buf + 0x63, str);
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	strcpy(buf + 0xa1, str2);
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	console_record_reset();
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	run_command("ms.s 0 100 hello", 0);
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	ut_assert_nextline("00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 68 65    ..............he");
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	ut_assert_nextline("00000020: 6c 6c 6f 00 00 00 00 00 00 00 00 00 00 00 00 00    llo.............");
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	ut_assert_nextline("--");
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	ut_assert_nextline("00000060: 00 00 00 68 65 6c 6c 6f 00 00 00 00 00 00 00 00    ...hello........");
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	ut_assert_nextline("--");
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	ut_assert_nextline("000000a0: 00 68 65 6c 6c 6f 74 68 65 72 65 00 00 00 00 00    .hellothere.....");
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	ut_assert_nextline("3 matches");
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	ut_assert_console_end();
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	ut_asserteq(3, env_get_hex("memmatches", 0));
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	ut_asserteq(0xa1, env_get_hex("memaddr", 0));
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	ut_asserteq(0xa1, env_get_hex("mempos", 0));
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	console_record_reset();
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	run_command("ms.s 0 100 hello there", 0);
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	ut_assert_nextline("000000a0: 00 68 65 6c 6c 6f 74 68 65 72 65 00 00 00 00 00    .hellothere.....");
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	ut_assert_nextline("1 match");
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	ut_assert_console_end();
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	ut_asserteq(1, env_get_hex("memmatches", 0));
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	ut_asserteq(0xa1, env_get_hex("memaddr", 0));
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	ut_asserteq(0xa1, env_get_hex("mempos", 0));
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	unmap_sysmem(buf);
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	return 0;
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}
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DM_TEST(dm_test_ms_s, 0);
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/* Test 'ms' command with limit */
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static int dm_test_ms_limit(struct unit_test_state *uts)
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{
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	u8 *buf;
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	buf = map_sysmem(0, BUF_SIZE + 1);
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	memset(buf, '\0', BUF_SIZE);
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	buf[0x0] = 0x12;
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	buf[0x31] = 0x12;
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	buf[0x62] = 0x12;
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	buf[0x76] = 0x12;
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	console_record_reset();
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	run_command("ms.b -l2 1 ff 12", 0);
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	ut_assert_nextline("00000030: 00 12 00 00 00 00 00 00 00 00 00 00 00 00 00 00    ................");
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	ut_assert_nextline("--");
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	ut_assert_nextlinen("00000060: 00 00 12 00 00 00 00 00 00 00 00 00 00 00 00 00");
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	ut_assert_nextline("2 matches (repeat command to check for more)");
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	ut_assert_console_end();
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	ut_asserteq(2, env_get_hex("memmatches", 0));
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	ut_asserteq(0x62, env_get_hex("memaddr", 0));
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	ut_asserteq(0x61, env_get_hex("mempos", 0));
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	unmap_sysmem(buf);
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	return 0;
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}
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DM_TEST(dm_test_ms_limit, 0);
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/* Test 'ms' command in quiet mode */
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static int dm_test_ms_quiet(struct unit_test_state *uts)
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{
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	u8 *buf;
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	buf = map_sysmem(0, BUF_SIZE + 1);
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	memset(buf, '\0', BUF_SIZE);
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	buf[0x0] = 0x12;
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	buf[0x31] = 0x12;
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	buf[0x62] = 0x12;
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	buf[0x76] = 0x12;
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	console_record_reset();
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	run_command("ms.b -l2 1 ff 12", 0);
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	ut_assert_console_end();
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	unmap_sysmem(buf);
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	return 0;
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}
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DM_TEST(dm_test_ms_quiet, 0);
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