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 /drivers/mtd/ubi/io.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 'drivers/mtd/ubi/io.c')
| -rw-r--r-- | drivers/mtd/ubi/io.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/drivers/mtd/ubi/io.c b/drivers/mtd/ubi/io.c index fc0a61fa79d..8ef7823b37c 100644 --- a/drivers/mtd/ubi/io.c +++ b/drivers/mtd/ubi/io.c @@ -78,6 +78,7 @@ #include <linux/err.h> #include <linux/slab.h> #else +#include <hexdump.h> #include <ubi_uboot.h> #endif @@ -1353,11 +1354,11 @@ static int self_check_write(struct ubi_device *ubi, const void *buf, int pnum, ubi_msg(ubi, "data differ at position %d", i); ubi_msg(ubi, "hex dump of the original buffer from %d to %d", i, i + dump_len); - print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, + print_hex_dump("", DUMP_PREFIX_OFFSET, 32, 1, buf + i, dump_len, 1); ubi_msg(ubi, "hex dump of the read buffer from %d to %d", i, i + dump_len); - print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, + print_hex_dump("", DUMP_PREFIX_OFFSET, 32, 1, buf1 + i, dump_len, 1); dump_stack(); err = -EINVAL; @@ -1419,7 +1420,7 @@ int ubi_self_check_all_ff(struct ubi_device *ubi, int pnum, int offset, int len) fail: ubi_err(ubi, "self-check failed for PEB %d", pnum); ubi_msg(ubi, "hex dump of the %d-%d region", offset, offset + len); - print_hex_dump(KERN_DEBUG, "", DUMP_PREFIX_OFFSET, 32, 1, buf, len, 1); + print_hex_dump("", DUMP_PREFIX_OFFSET, 32, 1, buf, len, 1); err = -EINVAL; error: dump_stack(); |