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| author | Namhyung Kim <namhyung.kim@lge.com> | 2013-07-31 17:21:01 +0900 |
|---|---|---|
| committer | Steven Rostedt <rostedt@goodmis.org> | 2014-01-02 16:17:24 -0500 |
| commit | 50eb2672ce13d73e96f6cee84e78cfb52513ff48 (patch) | |
| tree | 2c1c2ab3adb533566e2181a0c4423250e0b2e0fd | |
| parent | 306cfe2025adcba10fb883ad0c540f5541d1b086 (diff) | |
| download | linux-stable-50eb2672ce13d73e96f6cee84e78cfb52513ff48.tar.gz linux-stable-50eb2672ce13d73e96f6cee84e78cfb52513ff48.tar.bz2 linux-stable-50eb2672ce13d73e96f6cee84e78cfb52513ff48.zip | |
tracing/probes: Fix basic print type functions
The print format of s32 type was "ld" and it's casted to "long". So
it turned out to print 4294967295 for "-1" on 64-bit systems. Not
sure whether it worked well on 32-bit systems.
Anyway, it doesn't need to have cast argument at all since it already
casted using type pointer - just get rid of it. Thanks to Oleg for
pointing that out.
And print 0x prefix for unsigned type as it shows hex numbers.
Suggested-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Oleg Nesterov <oleg@redhat.com>
Acked-by: Masami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Cc: Srikar Dronamraju <srikar@linux.vnet.ibm.com>
Cc: zhangwei(Jovi) <jovi.zhangwei@huawei.com>
Cc: Arnaldo Carvalho de Melo <acme@ghostprotocols.net>
Signed-off-by: Namhyung Kim <namhyung@kernel.org>
| -rw-r--r-- | kernel/trace/trace_probe.c | 22 |
1 files changed, 11 insertions, 11 deletions
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c index 412e959709b4..430505b08a6f 100644 --- a/kernel/trace/trace_probe.c +++ b/kernel/trace/trace_probe.c @@ -40,23 +40,23 @@ const char *reserved_field_names[] = { #define PRINT_TYPE_FMT_NAME(type) print_type_format_##type /* Printing in basic type function template */ -#define DEFINE_BASIC_PRINT_TYPE_FUNC(type, fmt, cast) \ +#define DEFINE_BASIC_PRINT_TYPE_FUNC(type, fmt) \ static __kprobes int PRINT_TYPE_FUNC_NAME(type)(struct trace_seq *s, \ const char *name, \ - void *data, void *ent)\ + void *data, void *ent) \ { \ - return trace_seq_printf(s, " %s=" fmt, name, (cast)*(type *)data);\ + return trace_seq_printf(s, " %s=" fmt, name, *(type *)data); \ } \ static const char PRINT_TYPE_FMT_NAME(type)[] = fmt; -DEFINE_BASIC_PRINT_TYPE_FUNC(u8, "%x", unsigned int) -DEFINE_BASIC_PRINT_TYPE_FUNC(u16, "%x", unsigned int) -DEFINE_BASIC_PRINT_TYPE_FUNC(u32, "%lx", unsigned long) -DEFINE_BASIC_PRINT_TYPE_FUNC(u64, "%llx", unsigned long long) -DEFINE_BASIC_PRINT_TYPE_FUNC(s8, "%d", int) -DEFINE_BASIC_PRINT_TYPE_FUNC(s16, "%d", int) -DEFINE_BASIC_PRINT_TYPE_FUNC(s32, "%ld", long) -DEFINE_BASIC_PRINT_TYPE_FUNC(s64, "%lld", long long) +DEFINE_BASIC_PRINT_TYPE_FUNC(u8 , "0x%x") +DEFINE_BASIC_PRINT_TYPE_FUNC(u16, "0x%x") +DEFINE_BASIC_PRINT_TYPE_FUNC(u32, "0x%x") +DEFINE_BASIC_PRINT_TYPE_FUNC(u64, "0x%Lx") +DEFINE_BASIC_PRINT_TYPE_FUNC(s8, "%d") +DEFINE_BASIC_PRINT_TYPE_FUNC(s16, "%d") +DEFINE_BASIC_PRINT_TYPE_FUNC(s32, "%d") +DEFINE_BASIC_PRINT_TYPE_FUNC(s64, "%Ld") static inline void *get_rloc_data(u32 *dl) { |