[PATCH v7 01/15] perf annotate-data: Extract invalidate_reg_state() as a common helper

[Tengda Wu]

The invalidate_reg_state() function is currently static and only used
within the x86 data type profiling implementation. To prepare for adding
arm64 instruction tracking support, extract it as a common helper that
can be shared across architectures.

No functional change intended.

Reviewed-by: Shuai Xue <xueshuai@xxxxxxxxxxxxxxxxx>
Reviewed-by: Ian Rogers <irogers@xxxxxxxxxx>
Signed-off-by: Tengda Wu <wutengda@xxxxxxxxxxxxxxx>
---
 tools/perf/util/annotate-arch/annotate-x86.c | 9 ---------
 tools/perf/util/annotate-data.c              | 9 +++++++++
 tools/perf/util/annotate-data.h              | 1 +
 3 files changed, 10 insertions(+), 9 deletions(-)

diff --git a/tools/perf/util/annotate-arch/annotate-x86.c b/tools/perf/util/annotate-arch/annotate-x86.c
index 1acf31a2c759..aa381d25a63b 100644
--- a/tools/perf/util/annotate-arch/annotate-x86.c
+++ b/tools/perf/util/annotate-arch/annotate-x86.c
@@ -207,15 +207,6 @@ static int x86__cpuid_parse(struct arch *arch, const char *cpuid)
 }
 
 #ifdef HAVE_LIBDW_SUPPORT
-static void invalidate_reg_state(struct type_state_reg *reg)
-{
-	reg->kind = TSR_KIND_INVALID;
-	reg->ok = false;
-	reg->lifetime_active = false;
-	reg->lifetime_end = 0;
-	reg->copied_from = -1;
-}
-
 static void update_insn_state_x86(struct type_state *state,
 				  struct data_loc_info *dloc, Dwarf_Die *cu_die,
 				  struct disasm_line *dl)
diff --git a/tools/perf/util/annotate-data.c b/tools/perf/util/annotate-data.c
index 19a6ecd67f28..32af1be4e451 100644
--- a/tools/perf/util/annotate-data.c
+++ b/tools/perf/util/annotate-data.c
@@ -748,6 +748,15 @@ struct type_state_stack *findnew_stack_state(struct type_state *state,
 	return stack;
 }
 
+void invalidate_reg_state(struct type_state_reg *reg)
+{
+	reg->kind = TSR_KIND_INVALID;
+	reg->ok = false;
+	reg->lifetime_active = false;
+	reg->lifetime_end = 0;
+	reg->copied_from = -1;
+}
+
 /* Maintain a cache for quick global variable lookup */
 struct global_var_entry {
 	struct rb_node node;
diff --git a/tools/perf/util/annotate-data.h b/tools/perf/util/annotate-data.h
index bbf4fd35c1d7..d0dc056fb13a 100644
--- a/tools/perf/util/annotate-data.h
+++ b/tools/perf/util/annotate-data.h
@@ -267,6 +267,7 @@ void set_stack_state(struct type_state_stack *stack, int offset, u8 kind,
 				Dwarf_Die *type_die, int ptr_offset);
 struct type_state_stack *find_stack_state(struct type_state *state,
 						int offset);
+void invalidate_reg_state(struct type_state_reg *reg);
 bool get_global_var_type(Dwarf_Die *cu_die, struct data_loc_info *dloc,
 				u64 ip, u64 var_addr, int *var_offset,
 				Dwarf_Die *type_die);
-- 
2.34.1