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| author | Harvey Harrison <harvey.harrison@gmail.com> | 2008-10-09 03:51:49 +0400 |
|---|---|---|
| committer | Ingo Molnar <mingo@elte.hu> | 2008-10-14 12:39:25 +0400 |
| commit | 2fbc474901933c8f0c09b0280dfbb6780cb8bd60 (patch) | |
| tree | f73b8d74c1da044cecbba6c50e8b674ae885d425 | |
| parent | ddc7a01aad195708fc943d9446411d11e3547784 (diff) | |
| download | linux-2fbc474901933c8f0c09b0280dfbb6780cb8bd60.tar.xz | |
ftrace: fix hex output mode of ftrace
Fix the output of ftrace in hex mode as the hi/lo nibbles are output in
reverse order. Without this patch, the output of ftrace is:
raw mode : 6474 0 141531612444 0 140 + 6402 120 S
hex mode : 000091a4 00000000 000000023f1f50c1 00000000 c8 000000b2 00009120 87 ffff00c8 00000035
There is an inversion on ouput hex(6474) is 194a
[based on a patch by Philippe Reynes <tremyfr@yahoo.fr>]
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
| -rw-r--r-- | kernel/trace/trace.c | 8 |
1 files changed, 2 insertions, 6 deletions
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index 78d56614c95b..36cbb873845f 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -336,14 +336,12 @@ trace_seq_putmem(struct trace_seq *s, void *mem, size_t len) } #define HEX_CHARS 17 -static const char hex2asc[] = "0123456789abcdef"; static int trace_seq_putmem_hex(struct trace_seq *s, void *mem, size_t len) { unsigned char hex[HEX_CHARS]; unsigned char *data = mem; - unsigned char byte; int i, j; BUG_ON(len >= HEX_CHARS); @@ -353,10 +351,8 @@ trace_seq_putmem_hex(struct trace_seq *s, void *mem, size_t len) #else for (i = len-1, j = 0; i >= 0; i--) { #endif - byte = data[i]; - - hex[j++] = hex2asc[byte & 0x0f]; - hex[j++] = hex2asc[byte >> 4]; + hex[j++] = hex_asc_hi(data[i]); + hex[j++] = hex_asc_lo(data[i]); } hex[j++] = ' '; |