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perf annotate-data: Extract invalidate_reg_state() as a common helper

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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@linux.alibaba.com>
Reviewed-by: Ian Rogers <irogers@google.com>
Reviewed-by: Namhyung Kim <namhyung@kernel.org>
Signed-off-by: Tengda Wu <wutengda@huaweicloud.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
This commit is contained in:
Tengda Wu 2026-10-20 13:44:57 +00:00 committed by Arnaldo Carvalho de Melo
parent 6bfe62df93
commit edc11f5794
3 changed files with 10 additions and 9 deletions
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9
tools/perf/util/annotate-arch/annotate-x86.c
View File

@ -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)

9
tools/perf/util/annotate-data.c
View File

@ -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;

1
tools/perf/util/annotate-data.h
View File

@ -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);