At present print_hex_dump() only supports either 16- or 32-byte lines.
With U-Boot we want to support any line length up to a maximum of 64.
Update the function to support this, with 0 defaulting to 16, as with
print_buffer().
Signed-off-by: Simon Glass <s...@chromium.org>
---
(no changes since v1)
include/hexdump.h | 4 ++--
lib/hexdump.c | 12 +++++++++---
test/print_ut.c | 23 ++++++++++++++++++++---
3 files changed, 31 insertions(+), 8 deletions(-)
diff --git a/include/hexdump.h b/include/hexdump.h
index 62fce7ae7b4..b75e26025a4 100644
--- a/include/hexdump.h
+++ b/include/hexdump.h
@@ -85,7 +85,7 @@ static inline char *bin2hex(char *dst, const void *src,
size_t count)
* hex_dump_to_buffer - convert a blob of data to "hex ASCII" in memory
* @buf: data blob to dump
* @len: number of bytes in the @buf
- * @rowsize: number of bytes to print per line; must be 16 or 32
+ * @rowsize: number of bytes to print per line; max 64
* @groupsize: number of bytes to print at a time (1, 2, 4, 8; default = 1)
* @linebuf: where to put the converted data
* @linebuflen: total size of @linebuf, including space for terminating NUL
@@ -120,7 +120,7 @@ int hex_dump_to_buffer(const void *buf, size_t len, int
rowsize, int groupsize,
* caller supplies trailing spaces for alignment if desired
* @prefix_type: controls whether prefix of an offset, address, or none
* is printed (see enum dump_prefix_t)
- * @rowsize: number of bytes to print per line; must be 16 or 32
+ * @rowsize: number of bytes to print per line; max 64
* @groupsize: number of bytes to print at a time (1, 2, 4, 8; default = 1)
* @buf: data blob to dump
* @len: number of bytes in the @buf
diff --git a/lib/hexdump.c b/lib/hexdump.c
index a76ea707b69..a56e108164d 100644
--- a/lib/hexdump.c
+++ b/lib/hexdump.c
@@ -16,6 +16,8 @@
#include <linux/log2.h>
#include <asm/unaligned.h>
+#define MAX_LINE_LENGTH_BYTES 64
+
const char hex_asc[] = "0123456789abcdef";
const char hex_asc_upper[] = "0123456789ABCDEF";
@@ -30,8 +32,10 @@ int hex_dump_to_buffer(const void *buf, size_t len, int
rowsize, int groupsize,
int ascii_column;
int ret;
- if (rowsize != 16 && rowsize != 32)
+ if (!rowsize)
rowsize = 16;
+ else
+ rowsize = min(rowsize, MAX_LINE_LENGTH_BYTES);
if (len > rowsize) /* limit to one line at a time */
len = rowsize;
@@ -126,10 +130,12 @@ void print_hex_dump(const char *prefix_str, int
prefix_type, int rowsize,
{
const u8 *ptr = buf;
int i, linelen, remaining = len;
- char linebuf[32 * 3 + 2 + 32 + 1];
+ char linebuf[MAX_LINE_LENGTH_BYTES * 3 + 2 + MAX_LINE_LENGTH_BYTES + 1];
- if (rowsize != 16 && rowsize != 32)
+ if (!rowsize)
rowsize = 16;
+ else
+ rowsize = min(rowsize, MAX_LINE_LENGTH_BYTES);
for (i = 0; i < len; i += rowsize) {
linelen = min(remaining, rowsize);
diff --git a/test/print_ut.c b/test/print_ut.c
index b9c4b1142c2..86b1a5477e8 100644
--- a/test/print_ut.c
+++ b/test/print_ut.c
@@ -244,9 +244,26 @@ static int print_do_hex_dump(struct unit_test_state *uts)
ut_assert_nextline("00000010: 10 00
..");
ut_assert_console_end();
+ /* line length */
+ console_record_reset();
+ print_hex_dump("", DUMP_PREFIX_ADDRESS, 8, 1, buf, 0x12, true);
+ ut_assert_nextline("00000000: 00 11 22 33 44 55 66 77 ..\"3DUfw");
+ ut_assert_nextline("00000008: 88 99 aa bb cc dd ee ff ........");
+ ut_assert_nextline("00000010: 10 00 ..");
+ ut_assert_console_end();
+ unmap_sysmem(buf);
+
+ /* long line */
+ console_record_reset();
+ buf[0x41] = 0x41;
+ print_hex_dump("", DUMP_PREFIX_ADDRESS, 0x40, 1, buf, 0x42, true);
+ ut_assert_nextline("00000000: 00 11 22 33 44 55 66 77 88 99 aa bb cc dd
ee ff 10 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00
..\"3DUfw........................................................");
+ ut_assert_nextline("00000040: 00 41
.A");
+ ut_assert_console_end();
+
/* 16-bit */
console_record_reset();
- print_hex_dump("", DUMP_PREFIX_ADDRESS, 16, 2, buf, 0x12, true);
+ print_hex_dump("", DUMP_PREFIX_ADDRESS, 0, 2, buf, 0x12, true);
ut_assert_nextline("00000000: 1100 3322 5544 7766 9988 bbaa ddcc ffee
..\"3DUfw........");
ut_assert_nextline("00000010: 0010
..");
ut_assert_console_end();
@@ -254,7 +271,7 @@ static int print_do_hex_dump(struct unit_test_state *uts)
/* 32-bit */
console_record_reset();
- print_hex_dump("", DUMP_PREFIX_ADDRESS, 16, 4, buf, 0x14, true);
+ print_hex_dump("", DUMP_PREFIX_ADDRESS, 0, 4, buf, 0x14, true);
ut_assert_nextline("00000000: 33221100 77665544 bbaa9988 ffeeddcc
..\"3DUfw........");
ut_assert_nextline("00000010: 00000010
....");
ut_assert_console_end();
@@ -276,7 +293,7 @@ static int print_do_hex_dump(struct unit_test_state *uts)
for (i = 0; i < 4; i++)
buf[4 + i] = 126 + i;
buf[8] = 255;
- print_hex_dump("", DUMP_PREFIX_ADDRESS, 16, 1, buf, 10, true);
+ print_hex_dump("", DUMP_PREFIX_ADDRESS, 0, 1, buf, 10, true);
ut_assert_nextline("00000000: 00 1f 20 21 7e 7f 80 81 ff 99
.. !~.....");
ut_assert_console_end();
unmap_sysmem(buf);
--
2.31.1.607.g51e8a6a459-goog
