diff options
| author | Alexey Brodkin <Alexey.Brodkin@synopsys.com> | 2018-06-05 17:17:57 +0300 |
|---|---|---|
| committer | Tom Rini <trini@konsulko.com> | 2018-06-13 07:49:12 -0400 |
| commit | f8c987f8f127f867d96ca74bcd1fcb11d8265b67 (patch) | |
| tree | 78cf80cee4114c84cad20892e8894f17f6f56d74 /lib/vsprintf.c | |
| parent | f559180176a8650a78edb5be73935f51cd6a0064 (diff) | |
lib: Add hexdump
Often during debugging session it's very interesting to see
what data we were dealing with. For example what we write or read
to/from memory or peripherals.
This change introduces functions that allow to dump binary
data with one simple function invocation like:
------------------->8----------------
print_hex_dump_bytes("", DUMP_PREFIX_OFFSET, buf, len);
------------------->8----------------
which gives us the following:
------------------->8----------------
00000000: f2 b7 c9 88 62 61 75 64 72 61 74 65 3d 31 31 35 ....baudrate=115
00000010: 32 30 30 00 62 6f 6f 74 61 72 67 73 3d 63 6f 6e 200.bootargs=con
00000020: 73 6f 6c 65 3d 74 74 79 53 33 2c 31 31 35 32 30 sole=ttyS3,11520
00000030: 30 6e 38 00 62 6f 6f 74 64 65 6c 61 79 3d 33 00 0n8.bootdelay=3.
00000040: 62 6f 6f 74 66 69 6c 65 3d 75 49 6d 61 67 65 00 bootfile=uImage.
00000050: 66 64 74 63 6f 6e 74 72 6f 6c 61 64 64 72 3d 39 fdtcontroladdr=9
00000060: 66 66 62 31 62 61 30 00 6c 6f 61 64 61 64 64 72 ffb1ba0.loadaddr
00000070: 3d 30 78 38 32 30 30 30 30 30 30 00 73 74 64 65 =0x82000000.stde
00000080: 72 72 3d 73 65 72 69 61 6c 30 40 65 30 30 32 32 rr=serial0@e0022
00000090: 30 30 30 00 73 74 64 69 6e 3d 73 65 72 69 61 6c 000.stdin=serial
000000a0: 30 40 65 30 30 32 32 30 30 30 00 73 74 64 6f 75 0@e0022000.stdou
000000b0: 74 3d 73 65 72 69 61 6c 30 40 65 30 30 32 32 30 t=serial0@e00220
000000c0: 30 30 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00..............
...
------------------->8----------------
Source of hexdump.c was copied from Linux kernel v4.7-rc2.
Signed-off-by: Alexey Brodkin <abrodkin@synopsys.com>
Cc: Anatolij Gustschin <agust@denx.de>
Cc: Mario Six <mario.six@gdsys.cc>
Cc: Simon Glass <sjg@chromium.org>
Cc: Tom Rini <trini@konsulko.com>
Cc: Stefan Roese <sr@denx.de>
Diffstat (limited to 'lib/vsprintf.c')
| -rw-r--r-- | lib/vsprintf.c | 18 |
1 files changed, 4 insertions, 14 deletions
diff --git a/lib/vsprintf.c b/lib/vsprintf.c index 8514f50498..8b1b29fb5a 100644 --- a/lib/vsprintf.c +++ b/lib/vsprintf.c @@ -15,6 +15,7 @@ #include <charset.h> #include <efi_loader.h> #include <div64.h> +#include <hexdump.h> #include <uuid.h> #include <stdarg.h> #include <linux/ctype.h> @@ -315,17 +316,6 @@ static char *device_path_string(char *buf, char *end, void *dp, int field_width, #endif #ifdef CONFIG_CMD_NET -static const char hex_asc[] = "0123456789abcdef"; -#define hex_asc_lo(x) hex_asc[((x) & 0x0f)] -#define hex_asc_hi(x) hex_asc[((x) & 0xf0) >> 4] - -static inline char *pack_hex_byte(char *buf, u8 byte) -{ - *buf++ = hex_asc_hi(byte); - *buf++ = hex_asc_lo(byte); - return buf; -} - static char *mac_address_string(char *buf, char *end, u8 *addr, int field_width, int precision, int flags) { @@ -335,7 +325,7 @@ static char *mac_address_string(char *buf, char *end, u8 *addr, int field_width, int i; for (i = 0; i < 6; i++) { - p = pack_hex_byte(p, addr[i]); + p = hex_byte_pack(p, addr[i]); if (!(flags & SPECIAL) && i != 5) *p++ = ':'; } @@ -354,8 +344,8 @@ static char *ip6_addr_string(char *buf, char *end, u8 *addr, int field_width, int i; for (i = 0; i < 8; i++) { - p = pack_hex_byte(p, addr[2 * i]); - p = pack_hex_byte(p, addr[2 * i + 1]); + p = hex_byte_pack(p, addr[2 * i]); + p = hex_byte_pack(p, addr[2 * i + 1]); if (!(flags & SPECIAL) && i != 7) *p++ = ':'; } |