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u-boot/test/cmd/mem_search.c
Simon Glass bdded2015c cmd: Add a memory-search command 
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>
2020-07-08 17:21:46 -04:00

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