diff options
| -rw-r--r-- | include/hexdump.h | 4 | ||||
| -rw-r--r-- | lib/hexdump.c | 12 | ||||
| -rw-r--r-- | test/print_ut.c | 23 |
3 files changed, 31 insertions, 8 deletions
diff --git a/include/hexdump.h b/include/hexdump.h index 62fce7ae7b..b75e26025a 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 a76ea707b6..a56e108164 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 b9c4b1142c..86b1a5477e 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); |