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authorRandy Dunlap <randy.dunlap@oracle.com>2007-05-10 22:22:39 -0700
committerLinus Torvalds <torvalds@woody.linux-foundation.org>2007-05-11 08:29:34 -0700
commit99eaf3c45fe806c4a7f39b9be4a1bd0dfc617699 (patch)
tree9da206b2faaae7dc3804df2adea4cbf7f117208c /include
parent6eaeeaba39e5fa3d52a0bb8de15e995516ae251a (diff)
downloadop-kernel-dev-99eaf3c45fe806c4a7f39b9be4a1bd0dfc617699.zip
op-kernel-dev-99eaf3c45fe806c4a7f39b9be4a1bd0dfc617699.tar.gz
lib/hexdump
Based on ace_dump_mem() from Grant Likely for the Xilinx SystemACE CompactFlash interface. Add print_hex_dump() & hex_dumper() to lib/hexdump.c and linux/kernel.h. This patch adds the functions print_hex_dump() & hex_dumper(). print_hex_dump() can be used to perform a hex + ASCII dump of data to syslog, in an easily viewable format, thus providing a common text hex dump format. hex_dumper() provides a dump-to-memory function. It converts one "line" of output (16 bytes of input) at a time. Example usages: print_hex_dump(KERN_DEBUG, DUMP_PREFIX_ADDRESS, frame->data, frame->len); hex_dumper(frame->data, frame->len, linebuf, sizeof(linebuf)); Example output using %DUMP_PREFIX_OFFSET: 0009ab42: 40414243 44454647 48494a4b 4c4d4e4f-@ABCDEFG HIJKLMNO Example output using %DUMP_PREFIX_ADDRESS: ffffffff88089af0: 70717273 74757677 78797a7b 7c7d7e7f-pqrstuvw xyz{|}~. [akpm@linux-foundation.org: cleanups, add export] Signed-off-by: Randy Dunlap <randy.dunlap@oracle.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
Diffstat (limited to 'include')
-rw-r--r--include/linux/kernel.h11
1 files changed, 11 insertions, 0 deletions
diff --git a/include/linux/kernel.h b/include/linux/kernel.h
index 8645181..eec0d13 100644
--- a/include/linux/kernel.h
+++ b/include/linux/kernel.h
@@ -213,6 +213,17 @@ extern enum system_states {
extern void dump_stack(void);
+enum {
+ DUMP_PREFIX_NONE,
+ DUMP_PREFIX_ADDRESS,
+ DUMP_PREFIX_OFFSET
+};
+extern void hex_dump_to_buffer(const void *buf, size_t len, char *linebuf,
+ size_t linebuflen);
+extern void print_hex_dump(const char *level, int prefix_type,
+ void *buf, size_t len);
+#define hex_asc(x) "0123456789abcdef"[x]
+
#ifdef DEBUG
/* If you are writing a driver, please use dev_dbg instead */
#define pr_debug(fmt,arg...) \
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