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authorMasami Hiramatsu <mhiramat@kernel.org>2016-08-18 17:57:50 +0900
committerArnaldo Carvalho de Melo <acme@redhat.com>2016-08-23 15:38:09 -0300
commit17ce3dc7e5a0e4796cc7838d1f7b2531d0bca130 (patch)
treeabffd9fcf8dda031e3b024e452cb5de8671321e1 /kernel/trace/trace_probe.c
parent6637e6f1ac62e62a353612844db21cff9a17758b (diff)
downloadop-kernel-dev-17ce3dc7e5a0e4796cc7838d1f7b2531d0bca130.zip
op-kernel-dev-17ce3dc7e5a0e4796cc7838d1f7b2531d0bca130.tar.gz
ftrace: kprobe: uprobe: Add x8/x16/x32/x64 for hexadecimal types
Add x8/x16/x32/x64 for hexadecimal type casting to kprobe/uprobe event tracer. These type casts can be used for integer arguments for explicitly showing them in hexadecimal digits in formatted text. Signed-off-by: Masami Hiramatsu <mhiramat@kernel.org> Acked-by: Steven Rostedt <rostedt@goodmis.org> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Hemant Kumar <hemant@linux.vnet.ibm.com> Cc: Naohiro Aota <naohiro.aota@hgst.com> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Wang Nan <wangnan0@huawei.com> Link: http://lkml.kernel.org/r/147151067029.12957.11591314629326414783.stgit@devbox Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'kernel/trace/trace_probe.c')
-rw-r--r--kernel/trace/trace_probe.c30
1 files changed, 17 insertions, 13 deletions
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 74e80a5..725af9d 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -36,24 +36,28 @@ const char *reserved_field_names[] = {
};
/* Printing in basic type function template */
-#define DEFINE_BASIC_PRINT_TYPE_FUNC(type, fmt) \
-int PRINT_TYPE_FUNC_NAME(type)(struct trace_seq *s, const char *name, \
+#define DEFINE_BASIC_PRINT_TYPE_FUNC(tname, type, fmt) \
+int PRINT_TYPE_FUNC_NAME(tname)(struct trace_seq *s, const char *name, \
void *data, void *ent) \
{ \
trace_seq_printf(s, " %s=" fmt, name, *(type *)data); \
return !trace_seq_has_overflowed(s); \
} \
-const char PRINT_TYPE_FMT_NAME(type)[] = fmt; \
-NOKPROBE_SYMBOL(PRINT_TYPE_FUNC_NAME(type));
-
-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")
+const char PRINT_TYPE_FMT_NAME(tname)[] = fmt; \
+NOKPROBE_SYMBOL(PRINT_TYPE_FUNC_NAME(tname));
+
+DEFINE_BASIC_PRINT_TYPE_FUNC(u8, u8, "0x%x")
+DEFINE_BASIC_PRINT_TYPE_FUNC(u16, u16, "0x%x")
+DEFINE_BASIC_PRINT_TYPE_FUNC(u32, u32, "0x%x")
+DEFINE_BASIC_PRINT_TYPE_FUNC(u64, u64, "0x%Lx")
+DEFINE_BASIC_PRINT_TYPE_FUNC(s8, s8, "%d")
+DEFINE_BASIC_PRINT_TYPE_FUNC(s16, s16, "%d")
+DEFINE_BASIC_PRINT_TYPE_FUNC(s32, s32, "%d")
+DEFINE_BASIC_PRINT_TYPE_FUNC(s64, s64, "%Ld")
+DEFINE_BASIC_PRINT_TYPE_FUNC(x8, u8, "0x%x")
+DEFINE_BASIC_PRINT_TYPE_FUNC(x16, u16, "0x%x")
+DEFINE_BASIC_PRINT_TYPE_FUNC(x32, u32, "0x%x")
+DEFINE_BASIC_PRINT_TYPE_FUNC(x64, u64, "0x%Lx")
/* Print type function for string type */
int PRINT_TYPE_FUNC_NAME(string)(struct trace_seq *s, const char *name,
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