[for-next][PATCH 06/17] tracing/probes: Integrate duplicate set_print_fmt()
From: Namhyung Kim
The set_print_fmt() functions are implemented almost same for
[ku]probes. Move it to a common place and get rid of the duplication.
Acked-by: Masami Hiramatsu
Acked-by: Oleg Nesterov
Cc: Srikar Dronamraju
Cc: zhangwei(Jovi)
Cc: Arnaldo Carvalho de Melo
Signed-off-by: Namhyung Kim
---
kernel/trace/trace_kprobe.c | 63 +
kernel/trace/trace_probe.c | 62
kernel/trace/trace_probe.h | 2 ++
kernel/trace/trace_uprobe.c | 55 +--
4 files changed, 66 insertions(+), 116 deletions(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index fb1a027..c9ffdaf 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -964,67 +964,6 @@ static int kretprobe_event_define_fields(struct
ftrace_event_call *event_call)
return 0;
}
-static int __set_print_fmt(struct trace_kprobe *tk, char *buf, int len)
-{
- int i;
- int pos = 0;
-
- const char *fmt, *arg;
-
- if (!trace_kprobe_is_return(tk)) {
- fmt = "(%lx)";
- arg = "REC->" FIELD_STRING_IP;
- } else {
- fmt = "(%lx <- %lx)";
- arg = "REC->" FIELD_STRING_FUNC ", REC->" FIELD_STRING_RETIP;
- }
-
- /* When len=0, we just calculate the needed length */
-#define LEN_OR_ZERO (len ? len - pos : 0)
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, "\"%s", fmt);
-
- for (i = 0; i < tk->tp.nr_args; i++) {
- pos += snprintf(buf + pos, LEN_OR_ZERO, " %s=%s",
- tk->tp.args[i].name, tk->tp.args[i].type->fmt);
- }
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, "\", %s", arg);
-
- for (i = 0; i < tk->tp.nr_args; i++) {
- if (strcmp(tk->tp.args[i].type->name, "string") == 0)
- pos += snprintf(buf + pos, LEN_OR_ZERO,
- ", __get_str(%s)",
- tk->tp.args[i].name);
- else
- pos += snprintf(buf + pos, LEN_OR_ZERO, ", REC->%s",
- tk->tp.args[i].name);
- }
-
-#undef LEN_OR_ZERO
-
- /* return the length of print_fmt */
- return pos;
-}
-
-static int set_print_fmt(struct trace_kprobe *tk)
-{
- int len;
- char *print_fmt;
-
- /* First: called with 0 length to calculate the needed length */
- len = __set_print_fmt(tk, NULL, 0);
- print_fmt = kmalloc(len + 1, GFP_KERNEL);
- if (!print_fmt)
- return -ENOMEM;
-
- /* Second: actually write the @print_fmt */
- __set_print_fmt(tk, print_fmt, len + 1);
- tk->tp.call.print_fmt = print_fmt;
-
- return 0;
-}
-
#ifdef CONFIG_PERF_EVENTS
/* Kprobe profile handler */
@@ -1175,7 +1114,7 @@ static int register_kprobe_event(struct trace_kprobe *tk)
call->event.funcs = _funcs;
call->class->define_fields = kprobe_event_define_fields;
}
- if (set_print_fmt(tk) < 0)
+ if (set_print_fmt(>tp, trace_kprobe_is_return(tk)) < 0)
return -ENOMEM;
ret = register_ftrace_event(>event);
if (!ret) {
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 430505b..d8347b0 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -837,3 +837,65 @@ out:
return ret;
}
+
+static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
+ bool is_return)
+{
+ int i;
+ int pos = 0;
+
+ const char *fmt, *arg;
+
+ if (!is_return) {
+ fmt = "(%lx)";
+ arg = "REC->" FIELD_STRING_IP;
+ } else {
+ fmt = "(%lx <- %lx)";
+ arg = "REC->" FIELD_STRING_FUNC ", REC->" FIELD_STRING_RETIP;
+ }
+
+ /* When len=0, we just calculate the needed length */
+#define LEN_OR_ZERO (len ? len - pos : 0)
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, "\"%s", fmt);
+
+ for (i = 0; i < tp->nr_args; i++) {
+ pos += snprintf(buf + pos, LEN_OR_ZERO, " %s=%s",
+ tp->args[i].name, tp->args[i].type->fmt);
+ }
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, "\", %s", arg);
+
+ for (i = 0; i < tp->nr_args; i++) {
+ if (strcmp(tp->args[i].type->name, "string") == 0)
+ pos += snprintf(buf + pos, LEN_OR_ZERO,
+ ", __get_str(%s)",
+ tp->args[i].name);
+ else
+ pos += snprintf(buf + pos, LEN_OR_ZERO, ", REC->%s",
+ tp->args[i].name);
+ }
+
+#undef LEN_OR_ZERO
+
+ /* return the length of print_fmt */
+ return pos;
+}
+
+int set_print_fmt(struct trace_probe *tp, bool
[for-next][PATCH 06/17] tracing/probes: Integrate duplicate set_print_fmt()
From: Namhyung Kim namhyung@lge.com
The set_print_fmt() functions are implemented almost same for
[ku]probes. Move it to a common place and get rid of the duplication.
Acked-by: Masami Hiramatsu masami.hiramatsu...@hitachi.com
Acked-by: Oleg Nesterov o...@redhat.com
Cc: Srikar Dronamraju sri...@linux.vnet.ibm.com
Cc: zhangwei(Jovi) jovi.zhang...@huawei.com
Cc: Arnaldo Carvalho de Melo a...@ghostprotocols.net
Signed-off-by: Namhyung Kim namhy...@kernel.org
---
kernel/trace/trace_kprobe.c | 63 +
kernel/trace/trace_probe.c | 62
kernel/trace/trace_probe.h | 2 ++
kernel/trace/trace_uprobe.c | 55 +--
4 files changed, 66 insertions(+), 116 deletions(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index fb1a027..c9ffdaf 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -964,67 +964,6 @@ static int kretprobe_event_define_fields(struct
ftrace_event_call *event_call)
return 0;
}
-static int __set_print_fmt(struct trace_kprobe *tk, char *buf, int len)
-{
- int i;
- int pos = 0;
-
- const char *fmt, *arg;
-
- if (!trace_kprobe_is_return(tk)) {
- fmt = (%lx);
- arg = REC- FIELD_STRING_IP;
- } else {
- fmt = (%lx - %lx);
- arg = REC- FIELD_STRING_FUNC , REC- FIELD_STRING_RETIP;
- }
-
- /* When len=0, we just calculate the needed length */
-#define LEN_OR_ZERO (len ? len - pos : 0)
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, \%s, fmt);
-
- for (i = 0; i tk-tp.nr_args; i++) {
- pos += snprintf(buf + pos, LEN_OR_ZERO, %s=%s,
- tk-tp.args[i].name, tk-tp.args[i].type-fmt);
- }
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, \, %s, arg);
-
- for (i = 0; i tk-tp.nr_args; i++) {
- if (strcmp(tk-tp.args[i].type-name, string) == 0)
- pos += snprintf(buf + pos, LEN_OR_ZERO,
- , __get_str(%s),
- tk-tp.args[i].name);
- else
- pos += snprintf(buf + pos, LEN_OR_ZERO, , REC-%s,
- tk-tp.args[i].name);
- }
-
-#undef LEN_OR_ZERO
-
- /* return the length of print_fmt */
- return pos;
-}
-
-static int set_print_fmt(struct trace_kprobe *tk)
-{
- int len;
- char *print_fmt;
-
- /* First: called with 0 length to calculate the needed length */
- len = __set_print_fmt(tk, NULL, 0);
- print_fmt = kmalloc(len + 1, GFP_KERNEL);
- if (!print_fmt)
- return -ENOMEM;
-
- /* Second: actually write the @print_fmt */
- __set_print_fmt(tk, print_fmt, len + 1);
- tk-tp.call.print_fmt = print_fmt;
-
- return 0;
-}
-
#ifdef CONFIG_PERF_EVENTS
/* Kprobe profile handler */
@@ -1175,7 +1114,7 @@ static int register_kprobe_event(struct trace_kprobe *tk)
call-event.funcs = kprobe_funcs;
call-class-define_fields = kprobe_event_define_fields;
}
- if (set_print_fmt(tk) 0)
+ if (set_print_fmt(tk-tp, trace_kprobe_is_return(tk)) 0)
return -ENOMEM;
ret = register_ftrace_event(call-event);
if (!ret) {
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 430505b..d8347b0 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -837,3 +837,65 @@ out:
return ret;
}
+
+static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
+ bool is_return)
+{
+ int i;
+ int pos = 0;
+
+ const char *fmt, *arg;
+
+ if (!is_return) {
+ fmt = (%lx);
+ arg = REC- FIELD_STRING_IP;
+ } else {
+ fmt = (%lx - %lx);
+ arg = REC- FIELD_STRING_FUNC , REC- FIELD_STRING_RETIP;
+ }
+
+ /* When len=0, we just calculate the needed length */
+#define LEN_OR_ZERO (len ? len - pos : 0)
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, \%s, fmt);
+
+ for (i = 0; i tp-nr_args; i++) {
+ pos += snprintf(buf + pos, LEN_OR_ZERO, %s=%s,
+ tp-args[i].name, tp-args[i].type-fmt);
+ }
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, \, %s, arg);
+
+ for (i = 0; i tp-nr_args; i++) {
+ if (strcmp(tp-args[i].type-name, string) == 0)
+ pos += snprintf(buf + pos, LEN_OR_ZERO,
+ , __get_str(%s),
+ tp-args[i].name);
+ else
+ pos += snprintf(buf + pos, LEN_OR_ZERO, , REC-%s,
+ tp-args[i].name);
+ }
+
+#undef LEN_OR_ZERO
+
+ /* return the length of
[PATCH 06/17] tracing/probes: Integrate duplicate set_print_fmt()
From: Namhyung Kim
The set_print_fmt() functions are implemented almost same for
[ku]probes. Move it to a common place and get rid of the duplication.
Acked-by: Masami Hiramatsu
Cc: Srikar Dronamraju
Cc: Oleg Nesterov
Cc: zhangwei(Jovi)
Cc: Arnaldo Carvalho de Melo
Signed-off-by: Namhyung Kim
---
kernel/trace/trace_kprobe.c | 63 +
kernel/trace/trace_probe.c | 62
kernel/trace/trace_probe.h | 2 ++
kernel/trace/trace_uprobe.c | 55 +--
4 files changed, 66 insertions(+), 116 deletions(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 0167d4b92431..62d6c961bbce 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -964,67 +964,6 @@ static int kretprobe_event_define_fields(struct
ftrace_event_call *event_call)
return 0;
}
-static int __set_print_fmt(struct trace_kprobe *tk, char *buf, int len)
-{
- int i;
- int pos = 0;
-
- const char *fmt, *arg;
-
- if (!trace_kprobe_is_return(tk)) {
- fmt = "(%lx)";
- arg = "REC->" FIELD_STRING_IP;
- } else {
- fmt = "(%lx <- %lx)";
- arg = "REC->" FIELD_STRING_FUNC ", REC->" FIELD_STRING_RETIP;
- }
-
- /* When len=0, we just calculate the needed length */
-#define LEN_OR_ZERO (len ? len - pos : 0)
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, "\"%s", fmt);
-
- for (i = 0; i < tk->tp.nr_args; i++) {
- pos += snprintf(buf + pos, LEN_OR_ZERO, " %s=%s",
- tk->tp.args[i].name, tk->tp.args[i].type->fmt);
- }
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, "\", %s", arg);
-
- for (i = 0; i < tk->tp.nr_args; i++) {
- if (strcmp(tk->tp.args[i].type->name, "string") == 0)
- pos += snprintf(buf + pos, LEN_OR_ZERO,
- ", __get_str(%s)",
- tk->tp.args[i].name);
- else
- pos += snprintf(buf + pos, LEN_OR_ZERO, ", REC->%s",
- tk->tp.args[i].name);
- }
-
-#undef LEN_OR_ZERO
-
- /* return the length of print_fmt */
- return pos;
-}
-
-static int set_print_fmt(struct trace_kprobe *tk)
-{
- int len;
- char *print_fmt;
-
- /* First: called with 0 length to calculate the needed length */
- len = __set_print_fmt(tk, NULL, 0);
- print_fmt = kmalloc(len + 1, GFP_KERNEL);
- if (!print_fmt)
- return -ENOMEM;
-
- /* Second: actually write the @print_fmt */
- __set_print_fmt(tk, print_fmt, len + 1);
- tk->tp.call.print_fmt = print_fmt;
-
- return 0;
-}
-
#ifdef CONFIG_PERF_EVENTS
/* Kprobe profile handler */
@@ -1175,7 +1114,7 @@ static int register_kprobe_event(struct trace_kprobe *tk)
call->event.funcs = _funcs;
call->class->define_fields = kprobe_event_define_fields;
}
- if (set_print_fmt(tk) < 0)
+ if (set_print_fmt(>tp, trace_kprobe_is_return(tk)) < 0)
return -ENOMEM;
ret = register_ftrace_event(>event);
if (!ret) {
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 430505b08a6f..d8347b01ce89 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -837,3 +837,65 @@ out:
return ret;
}
+
+static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
+ bool is_return)
+{
+ int i;
+ int pos = 0;
+
+ const char *fmt, *arg;
+
+ if (!is_return) {
+ fmt = "(%lx)";
+ arg = "REC->" FIELD_STRING_IP;
+ } else {
+ fmt = "(%lx <- %lx)";
+ arg = "REC->" FIELD_STRING_FUNC ", REC->" FIELD_STRING_RETIP;
+ }
+
+ /* When len=0, we just calculate the needed length */
+#define LEN_OR_ZERO (len ? len - pos : 0)
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, "\"%s", fmt);
+
+ for (i = 0; i < tp->nr_args; i++) {
+ pos += snprintf(buf + pos, LEN_OR_ZERO, " %s=%s",
+ tp->args[i].name, tp->args[i].type->fmt);
+ }
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, "\", %s", arg);
+
+ for (i = 0; i < tp->nr_args; i++) {
+ if (strcmp(tp->args[i].type->name, "string") == 0)
+ pos += snprintf(buf + pos, LEN_OR_ZERO,
+ ", __get_str(%s)",
+ tp->args[i].name);
+ else
+ pos += snprintf(buf + pos, LEN_OR_ZERO, ", REC->%s",
+ tp->args[i].name);
+ }
+
+#undef LEN_OR_ZERO
+
+ /* return the length of print_fmt */
+ return pos;
+}
+
+int set_print_fmt(struct
[PATCH 06/17] tracing/probes: Integrate duplicate set_print_fmt()
From: Namhyung Kim namhyung@lge.com
The set_print_fmt() functions are implemented almost same for
[ku]probes. Move it to a common place and get rid of the duplication.
Acked-by: Masami Hiramatsu masami.hiramatsu...@hitachi.com
Cc: Srikar Dronamraju sri...@linux.vnet.ibm.com
Cc: Oleg Nesterov o...@redhat.com
Cc: zhangwei(Jovi) jovi.zhang...@huawei.com
Cc: Arnaldo Carvalho de Melo a...@ghostprotocols.net
Signed-off-by: Namhyung Kim namhy...@kernel.org
---
kernel/trace/trace_kprobe.c | 63 +
kernel/trace/trace_probe.c | 62
kernel/trace/trace_probe.h | 2 ++
kernel/trace/trace_uprobe.c | 55 +--
4 files changed, 66 insertions(+), 116 deletions(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 0167d4b92431..62d6c961bbce 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -964,67 +964,6 @@ static int kretprobe_event_define_fields(struct
ftrace_event_call *event_call)
return 0;
}
-static int __set_print_fmt(struct trace_kprobe *tk, char *buf, int len)
-{
- int i;
- int pos = 0;
-
- const char *fmt, *arg;
-
- if (!trace_kprobe_is_return(tk)) {
- fmt = (%lx);
- arg = REC- FIELD_STRING_IP;
- } else {
- fmt = (%lx - %lx);
- arg = REC- FIELD_STRING_FUNC , REC- FIELD_STRING_RETIP;
- }
-
- /* When len=0, we just calculate the needed length */
-#define LEN_OR_ZERO (len ? len - pos : 0)
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, \%s, fmt);
-
- for (i = 0; i tk-tp.nr_args; i++) {
- pos += snprintf(buf + pos, LEN_OR_ZERO, %s=%s,
- tk-tp.args[i].name, tk-tp.args[i].type-fmt);
- }
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, \, %s, arg);
-
- for (i = 0; i tk-tp.nr_args; i++) {
- if (strcmp(tk-tp.args[i].type-name, string) == 0)
- pos += snprintf(buf + pos, LEN_OR_ZERO,
- , __get_str(%s),
- tk-tp.args[i].name);
- else
- pos += snprintf(buf + pos, LEN_OR_ZERO, , REC-%s,
- tk-tp.args[i].name);
- }
-
-#undef LEN_OR_ZERO
-
- /* return the length of print_fmt */
- return pos;
-}
-
-static int set_print_fmt(struct trace_kprobe *tk)
-{
- int len;
- char *print_fmt;
-
- /* First: called with 0 length to calculate the needed length */
- len = __set_print_fmt(tk, NULL, 0);
- print_fmt = kmalloc(len + 1, GFP_KERNEL);
- if (!print_fmt)
- return -ENOMEM;
-
- /* Second: actually write the @print_fmt */
- __set_print_fmt(tk, print_fmt, len + 1);
- tk-tp.call.print_fmt = print_fmt;
-
- return 0;
-}
-
#ifdef CONFIG_PERF_EVENTS
/* Kprobe profile handler */
@@ -1175,7 +1114,7 @@ static int register_kprobe_event(struct trace_kprobe *tk)
call-event.funcs = kprobe_funcs;
call-class-define_fields = kprobe_event_define_fields;
}
- if (set_print_fmt(tk) 0)
+ if (set_print_fmt(tk-tp, trace_kprobe_is_return(tk)) 0)
return -ENOMEM;
ret = register_ftrace_event(call-event);
if (!ret) {
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 430505b08a6f..d8347b01ce89 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -837,3 +837,65 @@ out:
return ret;
}
+
+static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
+ bool is_return)
+{
+ int i;
+ int pos = 0;
+
+ const char *fmt, *arg;
+
+ if (!is_return) {
+ fmt = (%lx);
+ arg = REC- FIELD_STRING_IP;
+ } else {
+ fmt = (%lx - %lx);
+ arg = REC- FIELD_STRING_FUNC , REC- FIELD_STRING_RETIP;
+ }
+
+ /* When len=0, we just calculate the needed length */
+#define LEN_OR_ZERO (len ? len - pos : 0)
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, \%s, fmt);
+
+ for (i = 0; i tp-nr_args; i++) {
+ pos += snprintf(buf + pos, LEN_OR_ZERO, %s=%s,
+ tp-args[i].name, tp-args[i].type-fmt);
+ }
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, \, %s, arg);
+
+ for (i = 0; i tp-nr_args; i++) {
+ if (strcmp(tp-args[i].type-name, string) == 0)
+ pos += snprintf(buf + pos, LEN_OR_ZERO,
+ , __get_str(%s),
+ tp-args[i].name);
+ else
+ pos += snprintf(buf + pos, LEN_OR_ZERO, , REC-%s,
+ tp-args[i].name);
+ }
+
+#undef LEN_OR_ZERO
+
+ /* return the
[PATCH 06/17] tracing/probes: Integrate duplicate set_print_fmt()
From: Namhyung Kim
The set_print_fmt() functions are implemented almost same for
[ku]probes. Move it to a common place and get rid of the duplication.
Acked-by: Masami Hiramatsu
Cc: Srikar Dronamraju
Cc: Oleg Nesterov
Cc: zhangwei(Jovi)
Cc: Arnaldo Carvalho de Melo
Signed-off-by: Namhyung Kim
---
kernel/trace/trace_kprobe.c | 63 +
kernel/trace/trace_probe.c | 62
kernel/trace/trace_probe.h | 2 ++
kernel/trace/trace_uprobe.c | 55 +--
4 files changed, 66 insertions(+), 116 deletions(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 0167d4b92431..62d6c961bbce 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -964,67 +964,6 @@ static int kretprobe_event_define_fields(struct
ftrace_event_call *event_call)
return 0;
}
-static int __set_print_fmt(struct trace_kprobe *tk, char *buf, int len)
-{
- int i;
- int pos = 0;
-
- const char *fmt, *arg;
-
- if (!trace_kprobe_is_return(tk)) {
- fmt = "(%lx)";
- arg = "REC->" FIELD_STRING_IP;
- } else {
- fmt = "(%lx <- %lx)";
- arg = "REC->" FIELD_STRING_FUNC ", REC->" FIELD_STRING_RETIP;
- }
-
- /* When len=0, we just calculate the needed length */
-#define LEN_OR_ZERO (len ? len - pos : 0)
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, "\"%s", fmt);
-
- for (i = 0; i < tk->tp.nr_args; i++) {
- pos += snprintf(buf + pos, LEN_OR_ZERO, " %s=%s",
- tk->tp.args[i].name, tk->tp.args[i].type->fmt);
- }
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, "\", %s", arg);
-
- for (i = 0; i < tk->tp.nr_args; i++) {
- if (strcmp(tk->tp.args[i].type->name, "string") == 0)
- pos += snprintf(buf + pos, LEN_OR_ZERO,
- ", __get_str(%s)",
- tk->tp.args[i].name);
- else
- pos += snprintf(buf + pos, LEN_OR_ZERO, ", REC->%s",
- tk->tp.args[i].name);
- }
-
-#undef LEN_OR_ZERO
-
- /* return the length of print_fmt */
- return pos;
-}
-
-static int set_print_fmt(struct trace_kprobe *tk)
-{
- int len;
- char *print_fmt;
-
- /* First: called with 0 length to calculate the needed length */
- len = __set_print_fmt(tk, NULL, 0);
- print_fmt = kmalloc(len + 1, GFP_KERNEL);
- if (!print_fmt)
- return -ENOMEM;
-
- /* Second: actually write the @print_fmt */
- __set_print_fmt(tk, print_fmt, len + 1);
- tk->tp.call.print_fmt = print_fmt;
-
- return 0;
-}
-
#ifdef CONFIG_PERF_EVENTS
/* Kprobe profile handler */
@@ -1175,7 +1114,7 @@ static int register_kprobe_event(struct trace_kprobe *tk)
call->event.funcs = _funcs;
call->class->define_fields = kprobe_event_define_fields;
}
- if (set_print_fmt(tk) < 0)
+ if (set_print_fmt(>tp, trace_kprobe_is_return(tk)) < 0)
return -ENOMEM;
ret = register_ftrace_event(>event);
if (!ret) {
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 430505b08a6f..d8347b01ce89 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -837,3 +837,65 @@ out:
return ret;
}
+
+static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
+ bool is_return)
+{
+ int i;
+ int pos = 0;
+
+ const char *fmt, *arg;
+
+ if (!is_return) {
+ fmt = "(%lx)";
+ arg = "REC->" FIELD_STRING_IP;
+ } else {
+ fmt = "(%lx <- %lx)";
+ arg = "REC->" FIELD_STRING_FUNC ", REC->" FIELD_STRING_RETIP;
+ }
+
+ /* When len=0, we just calculate the needed length */
+#define LEN_OR_ZERO (len ? len - pos : 0)
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, "\"%s", fmt);
+
+ for (i = 0; i < tp->nr_args; i++) {
+ pos += snprintf(buf + pos, LEN_OR_ZERO, " %s=%s",
+ tp->args[i].name, tp->args[i].type->fmt);
+ }
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, "\", %s", arg);
+
+ for (i = 0; i < tp->nr_args; i++) {
+ if (strcmp(tp->args[i].type->name, "string") == 0)
+ pos += snprintf(buf + pos, LEN_OR_ZERO,
+ ", __get_str(%s)",
+ tp->args[i].name);
+ else
+ pos += snprintf(buf + pos, LEN_OR_ZERO, ", REC->%s",
+ tp->args[i].name);
+ }
+
+#undef LEN_OR_ZERO
+
+ /* return the length of print_fmt */
+ return pos;
+}
+
+int set_print_fmt(struct
[PATCH 06/17] tracing/probes: Integrate duplicate set_print_fmt()
From: Namhyung Kim namhyung@lge.com
The set_print_fmt() functions are implemented almost same for
[ku]probes. Move it to a common place and get rid of the duplication.
Acked-by: Masami Hiramatsu masami.hiramatsu...@hitachi.com
Cc: Srikar Dronamraju sri...@linux.vnet.ibm.com
Cc: Oleg Nesterov o...@redhat.com
Cc: zhangwei(Jovi) jovi.zhang...@huawei.com
Cc: Arnaldo Carvalho de Melo a...@ghostprotocols.net
Signed-off-by: Namhyung Kim namhy...@kernel.org
---
kernel/trace/trace_kprobe.c | 63 +
kernel/trace/trace_probe.c | 62
kernel/trace/trace_probe.h | 2 ++
kernel/trace/trace_uprobe.c | 55 +--
4 files changed, 66 insertions(+), 116 deletions(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index 0167d4b92431..62d6c961bbce 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -964,67 +964,6 @@ static int kretprobe_event_define_fields(struct
ftrace_event_call *event_call)
return 0;
}
-static int __set_print_fmt(struct trace_kprobe *tk, char *buf, int len)
-{
- int i;
- int pos = 0;
-
- const char *fmt, *arg;
-
- if (!trace_kprobe_is_return(tk)) {
- fmt = (%lx);
- arg = REC- FIELD_STRING_IP;
- } else {
- fmt = (%lx - %lx);
- arg = REC- FIELD_STRING_FUNC , REC- FIELD_STRING_RETIP;
- }
-
- /* When len=0, we just calculate the needed length */
-#define LEN_OR_ZERO (len ? len - pos : 0)
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, \%s, fmt);
-
- for (i = 0; i tk-tp.nr_args; i++) {
- pos += snprintf(buf + pos, LEN_OR_ZERO, %s=%s,
- tk-tp.args[i].name, tk-tp.args[i].type-fmt);
- }
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, \, %s, arg);
-
- for (i = 0; i tk-tp.nr_args; i++) {
- if (strcmp(tk-tp.args[i].type-name, string) == 0)
- pos += snprintf(buf + pos, LEN_OR_ZERO,
- , __get_str(%s),
- tk-tp.args[i].name);
- else
- pos += snprintf(buf + pos, LEN_OR_ZERO, , REC-%s,
- tk-tp.args[i].name);
- }
-
-#undef LEN_OR_ZERO
-
- /* return the length of print_fmt */
- return pos;
-}
-
-static int set_print_fmt(struct trace_kprobe *tk)
-{
- int len;
- char *print_fmt;
-
- /* First: called with 0 length to calculate the needed length */
- len = __set_print_fmt(tk, NULL, 0);
- print_fmt = kmalloc(len + 1, GFP_KERNEL);
- if (!print_fmt)
- return -ENOMEM;
-
- /* Second: actually write the @print_fmt */
- __set_print_fmt(tk, print_fmt, len + 1);
- tk-tp.call.print_fmt = print_fmt;
-
- return 0;
-}
-
#ifdef CONFIG_PERF_EVENTS
/* Kprobe profile handler */
@@ -1175,7 +1114,7 @@ static int register_kprobe_event(struct trace_kprobe *tk)
call-event.funcs = kprobe_funcs;
call-class-define_fields = kprobe_event_define_fields;
}
- if (set_print_fmt(tk) 0)
+ if (set_print_fmt(tk-tp, trace_kprobe_is_return(tk)) 0)
return -ENOMEM;
ret = register_ftrace_event(call-event);
if (!ret) {
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index 430505b08a6f..d8347b01ce89 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -837,3 +837,65 @@ out:
return ret;
}
+
+static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
+ bool is_return)
+{
+ int i;
+ int pos = 0;
+
+ const char *fmt, *arg;
+
+ if (!is_return) {
+ fmt = (%lx);
+ arg = REC- FIELD_STRING_IP;
+ } else {
+ fmt = (%lx - %lx);
+ arg = REC- FIELD_STRING_FUNC , REC- FIELD_STRING_RETIP;
+ }
+
+ /* When len=0, we just calculate the needed length */
+#define LEN_OR_ZERO (len ? len - pos : 0)
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, \%s, fmt);
+
+ for (i = 0; i tp-nr_args; i++) {
+ pos += snprintf(buf + pos, LEN_OR_ZERO, %s=%s,
+ tp-args[i].name, tp-args[i].type-fmt);
+ }
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, \, %s, arg);
+
+ for (i = 0; i tp-nr_args; i++) {
+ if (strcmp(tp-args[i].type-name, string) == 0)
+ pos += snprintf(buf + pos, LEN_OR_ZERO,
+ , __get_str(%s),
+ tp-args[i].name);
+ else
+ pos += snprintf(buf + pos, LEN_OR_ZERO, , REC-%s,
+ tp-args[i].name);
+ }
+
+#undef LEN_OR_ZERO
+
+ /* return the
[PATCH 06/17] tracing/probes: Integrate duplicate set_print_fmt()
From: Namhyung Kim
The set_print_fmt() functions are implemented almost same for
[ku]probes. Move it to a common place and get rid of the duplication.
Acked-by: Masami Hiramatsu
Cc: Srikar Dronamraju
Cc: Oleg Nesterov
Cc: zhangwei(Jovi)
Cc: Arnaldo Carvalho de Melo
Signed-off-by: Namhyung Kim
---
kernel/trace/trace_kprobe.c | 63 +
kernel/trace/trace_probe.c | 62
kernel/trace/trace_probe.h | 2 ++
kernel/trace/trace_uprobe.c | 55 +--
4 files changed, 66 insertions(+), 116 deletions(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index bc85240a8e43..a8129dfa36bb 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -964,67 +964,6 @@ static int kretprobe_event_define_fields(struct
ftrace_event_call *event_call)
return 0;
}
-static int __set_print_fmt(struct trace_kprobe *tp, char *buf, int len)
-{
- int i;
- int pos = 0;
-
- const char *fmt, *arg;
-
- if (!trace_kprobe_is_return(tp)) {
- fmt = "(%lx)";
- arg = "REC->" FIELD_STRING_IP;
- } else {
- fmt = "(%lx <- %lx)";
- arg = "REC->" FIELD_STRING_FUNC ", REC->" FIELD_STRING_RETIP;
- }
-
- /* When len=0, we just calculate the needed length */
-#define LEN_OR_ZERO (len ? len - pos : 0)
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, "\"%s", fmt);
-
- for (i = 0; i < tp->p.nr_args; i++) {
- pos += snprintf(buf + pos, LEN_OR_ZERO, " %s=%s",
- tp->p.args[i].name, tp->p.args[i].type->fmt);
- }
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, "\", %s", arg);
-
- for (i = 0; i < tp->p.nr_args; i++) {
- if (strcmp(tp->p.args[i].type->name, "string") == 0)
- pos += snprintf(buf + pos, LEN_OR_ZERO,
- ", __get_str(%s)",
- tp->p.args[i].name);
- else
- pos += snprintf(buf + pos, LEN_OR_ZERO, ", REC->%s",
- tp->p.args[i].name);
- }
-
-#undef LEN_OR_ZERO
-
- /* return the length of print_fmt */
- return pos;
-}
-
-static int set_print_fmt(struct trace_kprobe *tp)
-{
- int len;
- char *print_fmt;
-
- /* First: called with 0 length to calculate the needed length */
- len = __set_print_fmt(tp, NULL, 0);
- print_fmt = kmalloc(len + 1, GFP_KERNEL);
- if (!print_fmt)
- return -ENOMEM;
-
- /* Second: actually write the @print_fmt */
- __set_print_fmt(tp, print_fmt, len + 1);
- tp->p.call.print_fmt = print_fmt;
-
- return 0;
-}
-
#ifdef CONFIG_PERF_EVENTS
/* Kprobe profile handler */
@@ -1175,7 +1114,7 @@ static int register_kprobe_event(struct trace_kprobe *tp)
call->event.funcs = _funcs;
call->class->define_fields = kprobe_event_define_fields;
}
- if (set_print_fmt(tp) < 0)
+ if (set_print_fmt(>p, trace_kprobe_is_return(tp)) < 0)
return -ENOMEM;
ret = register_ftrace_event(>event);
if (!ret) {
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index e1b975fb5d7c..7de2f58d2acb 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -837,3 +837,65 @@ out:
return ret;
}
+
+static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
+ bool is_return)
+{
+ int i;
+ int pos = 0;
+
+ const char *fmt, *arg;
+
+ if (!is_return) {
+ fmt = "(%lx)";
+ arg = "REC->" FIELD_STRING_IP;
+ } else {
+ fmt = "(%lx <- %lx)";
+ arg = "REC->" FIELD_STRING_FUNC ", REC->" FIELD_STRING_RETIP;
+ }
+
+ /* When len=0, we just calculate the needed length */
+#define LEN_OR_ZERO (len ? len - pos : 0)
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, "\"%s", fmt);
+
+ for (i = 0; i < tp->nr_args; i++) {
+ pos += snprintf(buf + pos, LEN_OR_ZERO, " %s=%s",
+ tp->args[i].name, tp->args[i].type->fmt);
+ }
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, "\", %s", arg);
+
+ for (i = 0; i < tp->nr_args; i++) {
+ if (strcmp(tp->args[i].type->name, "string") == 0)
+ pos += snprintf(buf + pos, LEN_OR_ZERO,
+ ", __get_str(%s)",
+ tp->args[i].name);
+ else
+ pos += snprintf(buf + pos, LEN_OR_ZERO, ", REC->%s",
+ tp->args[i].name);
+ }
+
+#undef LEN_OR_ZERO
+
+ /* return the length of print_fmt */
+ return pos;
+}
+
+int set_print_fmt(struct trace_probe *tp,
[PATCH 06/17] tracing/probes: Integrate duplicate set_print_fmt()
From: Namhyung Kim namhyung@lge.com
The set_print_fmt() functions are implemented almost same for
[ku]probes. Move it to a common place and get rid of the duplication.
Acked-by: Masami Hiramatsu masami.hiramatsu...@hitachi.com
Cc: Srikar Dronamraju sri...@linux.vnet.ibm.com
Cc: Oleg Nesterov o...@redhat.com
Cc: zhangwei(Jovi) jovi.zhang...@huawei.com
Cc: Arnaldo Carvalho de Melo a...@ghostprotocols.net
Signed-off-by: Namhyung Kim namhy...@kernel.org
---
kernel/trace/trace_kprobe.c | 63 +
kernel/trace/trace_probe.c | 62
kernel/trace/trace_probe.h | 2 ++
kernel/trace/trace_uprobe.c | 55 +--
4 files changed, 66 insertions(+), 116 deletions(-)
diff --git a/kernel/trace/trace_kprobe.c b/kernel/trace/trace_kprobe.c
index bc85240a8e43..a8129dfa36bb 100644
--- a/kernel/trace/trace_kprobe.c
+++ b/kernel/trace/trace_kprobe.c
@@ -964,67 +964,6 @@ static int kretprobe_event_define_fields(struct
ftrace_event_call *event_call)
return 0;
}
-static int __set_print_fmt(struct trace_kprobe *tp, char *buf, int len)
-{
- int i;
- int pos = 0;
-
- const char *fmt, *arg;
-
- if (!trace_kprobe_is_return(tp)) {
- fmt = (%lx);
- arg = REC- FIELD_STRING_IP;
- } else {
- fmt = (%lx - %lx);
- arg = REC- FIELD_STRING_FUNC , REC- FIELD_STRING_RETIP;
- }
-
- /* When len=0, we just calculate the needed length */
-#define LEN_OR_ZERO (len ? len - pos : 0)
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, \%s, fmt);
-
- for (i = 0; i tp-p.nr_args; i++) {
- pos += snprintf(buf + pos, LEN_OR_ZERO, %s=%s,
- tp-p.args[i].name, tp-p.args[i].type-fmt);
- }
-
- pos += snprintf(buf + pos, LEN_OR_ZERO, \, %s, arg);
-
- for (i = 0; i tp-p.nr_args; i++) {
- if (strcmp(tp-p.args[i].type-name, string) == 0)
- pos += snprintf(buf + pos, LEN_OR_ZERO,
- , __get_str(%s),
- tp-p.args[i].name);
- else
- pos += snprintf(buf + pos, LEN_OR_ZERO, , REC-%s,
- tp-p.args[i].name);
- }
-
-#undef LEN_OR_ZERO
-
- /* return the length of print_fmt */
- return pos;
-}
-
-static int set_print_fmt(struct trace_kprobe *tp)
-{
- int len;
- char *print_fmt;
-
- /* First: called with 0 length to calculate the needed length */
- len = __set_print_fmt(tp, NULL, 0);
- print_fmt = kmalloc(len + 1, GFP_KERNEL);
- if (!print_fmt)
- return -ENOMEM;
-
- /* Second: actually write the @print_fmt */
- __set_print_fmt(tp, print_fmt, len + 1);
- tp-p.call.print_fmt = print_fmt;
-
- return 0;
-}
-
#ifdef CONFIG_PERF_EVENTS
/* Kprobe profile handler */
@@ -1175,7 +1114,7 @@ static int register_kprobe_event(struct trace_kprobe *tp)
call-event.funcs = kprobe_funcs;
call-class-define_fields = kprobe_event_define_fields;
}
- if (set_print_fmt(tp) 0)
+ if (set_print_fmt(tp-p, trace_kprobe_is_return(tp)) 0)
return -ENOMEM;
ret = register_ftrace_event(call-event);
if (!ret) {
diff --git a/kernel/trace/trace_probe.c b/kernel/trace/trace_probe.c
index e1b975fb5d7c..7de2f58d2acb 100644
--- a/kernel/trace/trace_probe.c
+++ b/kernel/trace/trace_probe.c
@@ -837,3 +837,65 @@ out:
return ret;
}
+
+static int __set_print_fmt(struct trace_probe *tp, char *buf, int len,
+ bool is_return)
+{
+ int i;
+ int pos = 0;
+
+ const char *fmt, *arg;
+
+ if (!is_return) {
+ fmt = (%lx);
+ arg = REC- FIELD_STRING_IP;
+ } else {
+ fmt = (%lx - %lx);
+ arg = REC- FIELD_STRING_FUNC , REC- FIELD_STRING_RETIP;
+ }
+
+ /* When len=0, we just calculate the needed length */
+#define LEN_OR_ZERO (len ? len - pos : 0)
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, \%s, fmt);
+
+ for (i = 0; i tp-nr_args; i++) {
+ pos += snprintf(buf + pos, LEN_OR_ZERO, %s=%s,
+ tp-args[i].name, tp-args[i].type-fmt);
+ }
+
+ pos += snprintf(buf + pos, LEN_OR_ZERO, \, %s, arg);
+
+ for (i = 0; i tp-nr_args; i++) {
+ if (strcmp(tp-args[i].type-name, string) == 0)
+ pos += snprintf(buf + pos, LEN_OR_ZERO,
+ , __get_str(%s),
+ tp-args[i].name);
+ else
+ pos += snprintf(buf + pos, LEN_OR_ZERO, , REC-%s,
+ tp-args[i].name);
+ }
+
+#undef LEN_OR_ZERO
+
+ /* return the length of
