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-rw-r--r--include/trace/ftrace.h15
-rw-r--r--kernel/trace/ring_buffer.c15
-rw-r--r--kernel/trace/trace_events.c24
-rw-r--r--kernel/trace/trace_export.c25
-rw-r--r--kernel/trace/trace_syscalls.c20
-rw-r--r--tools/perf/util/trace-event-parse.c24
-rw-r--r--tools/perf/util/trace-event.h1
7 files changed, 82 insertions, 42 deletions
diff --git a/include/trace/ftrace.h b/include/trace/ftrace.h
index cc0d9667e182..c9bbcab95fbe 100644
--- a/include/trace/ftrace.h
+++ b/include/trace/ftrace.h
@@ -120,9 +120,10 @@
#undef __field
#define __field(type, item) \
ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
- "offset:%u;\tsize:%u;\n", \
+ "offset:%u;\tsize:%u;\tsigned:%u;\n", \
(unsigned int)offsetof(typeof(field), item), \
- (unsigned int)sizeof(field.item)); \
+ (unsigned int)sizeof(field.item), \
+ (unsigned int)is_signed_type(type)); \
if (!ret) \
return 0;
@@ -132,19 +133,21 @@
#undef __array
#define __array(type, item, len) \
ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
- "offset:%u;\tsize:%u;\n", \
+ "offset:%u;\tsize:%u;\tsigned:%u;\n", \
(unsigned int)offsetof(typeof(field), item), \
- (unsigned int)sizeof(field.item)); \
+ (unsigned int)sizeof(field.item), \
+ (unsigned int)is_signed_type(type)); \
if (!ret) \
return 0;
#undef __dynamic_array
#define __dynamic_array(type, item, len) \
ret = trace_seq_printf(s, "\tfield:__data_loc " #type "[] " #item ";\t"\
- "offset:%u;\tsize:%u;\n", \
+ "offset:%u;\tsize:%u;\tsigned:%u;\n", \
(unsigned int)offsetof(typeof(field), \
__data_loc_##item), \
- (unsigned int)sizeof(field.__data_loc_##item)); \
+ (unsigned int)sizeof(field.__data_loc_##item), \
+ (unsigned int)is_signed_type(type)); \
if (!ret) \
return 0;
diff --git a/kernel/trace/ring_buffer.c b/kernel/trace/ring_buffer.c
index d4ff01970547..e43c928356ee 100644
--- a/kernel/trace/ring_buffer.c
+++ b/kernel/trace/ring_buffer.c
@@ -397,18 +397,21 @@ int ring_buffer_print_page_header(struct trace_seq *s)
int ret;
ret = trace_seq_printf(s, "\tfield: u64 timestamp;\t"
- "offset:0;\tsize:%u;\n",
- (unsigned int)sizeof(field.time_stamp));
+ "offset:0;\tsize:%u;\tsigned:%u;\n",
+ (unsigned int)sizeof(field.time_stamp),
+ (unsigned int)is_signed_type(u64));
ret = trace_seq_printf(s, "\tfield: local_t commit;\t"
- "offset:%u;\tsize:%u;\n",
+ "offset:%u;\tsize:%u;\tsigned:%u;\n",
(unsigned int)offsetof(typeof(field), commit),
- (unsigned int)sizeof(field.commit));
+ (unsigned int)sizeof(field.commit),
+ (unsigned int)is_signed_type(long));
ret = trace_seq_printf(s, "\tfield: char data;\t"
- "offset:%u;\tsize:%u;\n",
+ "offset:%u;\tsize:%u;\tsigned:%u;\n",
(unsigned int)offsetof(typeof(field), data),
- (unsigned int)BUF_PAGE_SIZE);
+ (unsigned int)BUF_PAGE_SIZE,
+ (unsigned int)is_signed_type(char));
return ret;
}
diff --git a/kernel/trace/trace_events.c b/kernel/trace/trace_events.c
index d128f65778e6..cf3cabf6ce14 100644
--- a/kernel/trace/trace_events.c
+++ b/kernel/trace/trace_events.c
@@ -507,7 +507,7 @@ extern char *__bad_type_size(void);
#define FIELD(type, name) \
sizeof(type) != sizeof(field.name) ? __bad_type_size() : \
#type, "common_" #name, offsetof(typeof(field), name), \
- sizeof(field.name)
+ sizeof(field.name), is_signed_type(type)
static int trace_write_header(struct trace_seq *s)
{
@@ -515,17 +515,17 @@ static int trace_write_header(struct trace_seq *s)
/* struct trace_entry */
return trace_seq_printf(s,
- "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
- "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
- "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
- "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
- "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
- "\n",
- FIELD(unsigned short, type),
- FIELD(unsigned char, flags),
- FIELD(unsigned char, preempt_count),
- FIELD(int, pid),
- FIELD(int, lock_depth));
+ "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\tsigned:%u;\n"
+ "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\tsigned:%u;\n"
+ "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\tsigned:%u;\n"
+ "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\tsigned:%u;\n"
+ "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\tsigned:%u;\n"
+ "\n",
+ FIELD(unsigned short, type),
+ FIELD(unsigned char, flags),
+ FIELD(unsigned char, preempt_count),
+ FIELD(int, pid),
+ FIELD(int, lock_depth));
}
static ssize_t
diff --git a/kernel/trace/trace_export.c b/kernel/trace/trace_export.c
index 9753fcc61bc5..31da218ee10f 100644
--- a/kernel/trace/trace_export.c
+++ b/kernel/trace/trace_export.c
@@ -66,44 +66,47 @@ static void __used ____ftrace_check_##name(void) \
#undef __field
#define __field(type, item) \
ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
- "offset:%zu;\tsize:%zu;\n", \
+ "offset:%zu;\tsize:%zu;\tsigned:%u;\n", \
offsetof(typeof(field), item), \
- sizeof(field.item)); \
+ sizeof(field.item), is_signed_type(type)); \
if (!ret) \
return 0;
#undef __field_desc
#define __field_desc(type, container, item) \
ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
- "offset:%zu;\tsize:%zu;\n", \
+ "offset:%zu;\tsize:%zu;\tsigned:%u;\n", \
offsetof(typeof(field), container.item), \
- sizeof(field.container.item)); \
+ sizeof(field.container.item), \
+ is_signed_type(type)); \
if (!ret) \
return 0;
#undef __array
#define __array(type, item, len) \
ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
- "offset:%zu;\tsize:%zu;\n", \
- offsetof(typeof(field), item), \
- sizeof(field.item)); \
+ "offset:%zu;\tsize:%zu;\tsigned:%u;\n", \
+ offsetof(typeof(field), item), \
+ sizeof(field.item), is_signed_type(type)); \
if (!ret) \
return 0;
#undef __array_desc
#define __array_desc(type, container, item, len) \
ret = trace_seq_printf(s, "\tfield:" #type " " #item "[" #len "];\t" \
- "offset:%zu;\tsize:%zu;\n", \
+ "offset:%zu;\tsize:%zu;\tsigned:%u;\n", \
offsetof(typeof(field), container.item), \
- sizeof(field.container.item)); \
+ sizeof(field.container.item), \
+ is_signed_type(type)); \
if (!ret) \
return 0;
#undef __dynamic_array
#define __dynamic_array(type, item) \
ret = trace_seq_printf(s, "\tfield:" #type " " #item ";\t" \
- "offset:%zu;\tsize:0;\n", \
- offsetof(typeof(field), item)); \
+ "offset:%zu;\tsize:0;\tsigned:%u;\n", \
+ offsetof(typeof(field), item), \
+ is_signed_type(type)); \
if (!ret) \
return 0;
diff --git a/kernel/trace/trace_syscalls.c b/kernel/trace/trace_syscalls.c
index 527e17eae575..d99abc427c39 100644
--- a/kernel/trace/trace_syscalls.c
+++ b/kernel/trace/trace_syscalls.c
@@ -103,7 +103,8 @@ extern char *__bad_type_size(void);
#define SYSCALL_FIELD(type, name) \
sizeof(type) != sizeof(trace.name) ? \
__bad_type_size() : \
- #type, #name, offsetof(typeof(trace), name), sizeof(trace.name)
+ #type, #name, offsetof(typeof(trace), name), \
+ sizeof(trace.name), is_signed_type(type)
int syscall_enter_format(struct ftrace_event_call *call, struct trace_seq *s)
{
@@ -120,7 +121,8 @@ int syscall_enter_format(struct ftrace_event_call *call, struct trace_seq *s)
if (!entry)
return 0;
- ret = trace_seq_printf(s, "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n",
+ ret = trace_seq_printf(s, "\tfield:%s %s;\toffset:%zu;\tsize:%zu;"
+ "\tsigned:%u;\n",
SYSCALL_FIELD(int, nr));
if (!ret)
return 0;
@@ -130,8 +132,10 @@ int syscall_enter_format(struct ftrace_event_call *call, struct trace_seq *s)
entry->args[i]);
if (!ret)
return 0;
- ret = trace_seq_printf(s, "\toffset:%d;\tsize:%zu;\n", offset,
- sizeof(unsigned long));
+ ret = trace_seq_printf(s, "\toffset:%d;\tsize:%zu;"
+ "\tsigned:%u;\n", offset,
+ sizeof(unsigned long),
+ is_signed_type(unsigned long));
if (!ret)
return 0;
offset += sizeof(unsigned long);
@@ -163,8 +167,10 @@ int syscall_exit_format(struct ftrace_event_call *call, struct trace_seq *s)
struct syscall_trace_exit trace;
ret = trace_seq_printf(s,
- "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n"
- "\tfield:%s %s;\toffset:%zu;\tsize:%zu;\n",
+ "\tfield:%s %s;\toffset:%zu;\tsize:%zu;"
+ "\tsigned:%u;\n"
+ "\tfield:%s %s;\toffset:%zu;\tsize:%zu;"
+ "\tsigned:%u;\n",
SYSCALL_FIELD(int, nr),
SYSCALL_FIELD(long, ret));
if (!ret)
@@ -212,7 +218,7 @@ int syscall_exit_define_fields(struct ftrace_event_call *call)
if (ret)
return ret;
- ret = trace_define_field(call, SYSCALL_FIELD(long, ret), 0,
+ ret = trace_define_field(call, SYSCALL_FIELD(long, ret),
FILTER_OTHER);
return ret;
diff --git a/tools/perf/util/trace-event-parse.c b/tools/perf/util/trace-event-parse.c
index 55b41b9e3834..be8412d699a1 100644
--- a/tools/perf/util/trace-event-parse.c
+++ b/tools/perf/util/trace-event-parse.c
@@ -897,6 +897,21 @@ static int event_read_fields(struct event *event, struct format_field **fields)
if (read_expected(EVENT_OP, (char *)";") < 0)
goto fail_expect;
+ if (read_expected(EVENT_ITEM, (char *)"signed") < 0)
+ goto fail_expect;
+
+ if (read_expected(EVENT_OP, (char *)":") < 0)
+ goto fail_expect;
+
+ if (read_expect_type(EVENT_ITEM, &token))
+ goto fail;
+ if (strtoul(token, NULL, 0))
+ field->flags |= FIELD_IS_SIGNED;
+ free_token(token);
+
+ if (read_expected(EVENT_OP, (char *)";") < 0)
+ goto fail_expect;
+
if (read_expect_type(EVENT_NEWLINE, &token) < 0)
goto fail;
free_token(token);
@@ -2845,6 +2860,15 @@ static void parse_header_field(char *type,
free_token(token);
if (read_expected(EVENT_OP, (char *)";") < 0)
return;
+ if (read_expected(EVENT_ITEM, (char *)"signed") < 0)
+ return;
+ if (read_expected(EVENT_OP, (char *)":") < 0)
+ return;
+ if (read_expect_type(EVENT_ITEM, &token) < 0)
+ return;
+ free_token(token);
+ if (read_expected(EVENT_OP, (char *)";") < 0)
+ return;
if (read_expect_type(EVENT_NEWLINE, &token) < 0)
return;
free_token(token);
diff --git a/tools/perf/util/trace-event.h b/tools/perf/util/trace-event.h
index 162c3e6deb93..00b440df66d8 100644
--- a/tools/perf/util/trace-event.h
+++ b/tools/perf/util/trace-event.h
@@ -26,6 +26,7 @@ enum {
enum format_flags {
FIELD_IS_ARRAY = 1,
FIELD_IS_POINTER = 2,
+ FIELD_IS_SIGNED = 4,
};
struct format_field {
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-15 06:58:12 +0000