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tools lib traceevent: Simplify pointer print logic and fix %pF

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[ Upstream commit 38d70b7ca1769f26c0b79f3c08ff2cc949712b59 ]

When processing %pX in pretty_print(), simplify the logic slightly by
incrementing the ptr to the format string if isalnum(ptr[1]) is true.
This follows the logic a bit more closely to what is in the kernel.

Also, this fixes a small bug where %pF was not giving the offset of the
function.

Signed-off-by: Steven Rostedt <rostedt@goodmis.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: Andrew Morton <akpm@linux-foundation.org>
Link: http://lkml.kernel.org/r/20180112004822.260262257@goodmis.org
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: Sasha Levin <alexander.levin@microsoft.com>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
This commit is contained in:
Steven Rostedt (VMware) 2018-01-11 19:47:45 -05:00 committed by Greg Kroah-Hartman
parent 1c6f97db49
commit 1a08c11109
1 changed files with 9 additions and 8 deletions
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17
tools/lib/traceevent/event-parse.c
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@ -4905,21 +4905,22 @@ static void pretty_print(struct trace_seq *s, void *data, int size, struct event
else
ls = 2;
if (*(ptr+1) == 'F' || *(ptr+1) == 'f' ||
*(ptr+1) == 'S' || *(ptr+1) == 's') {
if (isalnum(ptr[1]))
ptr++;
if (*ptr == 'F' || *ptr == 'f' ||
*ptr == 'S' || *ptr == 's') {
show_func = *ptr;
} else if (*(ptr+1) == 'M' || *(ptr+1) == 'm') {
print_mac_arg(s, *(ptr+1), data, size, event, arg);
ptr++;
} else if (*ptr == 'M' || *ptr == 'm') {
print_mac_arg(s, *ptr, data, size, event, arg);
arg = arg->next;
break;
} else if (*(ptr+1) == 'I' || *(ptr+1) == 'i') {
} else if (*ptr == 'I' || *ptr == 'i') {
int n;
n = print_ip_arg(s, ptr+1, data, size, event, arg);
n = print_ip_arg(s, ptr, data, size, event, arg);
if (n > 0) {
ptr += n;
ptr += n - 1;
arg = arg->next;
break;
}