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-rw-r--r--include/linux/ftrace_event.h10
-rw-r--r--include/linux/kvm_host.h1
-rw-r--r--include/linux/marker.h221
-rw-r--r--include/linux/module.h11
-rw-r--r--include/linux/syscalls.h24
5 files changed, 16 insertions, 251 deletions
diff --git a/include/linux/ftrace_event.h b/include/linux/ftrace_event.h
index bd099ba82cc..4ec5e67e18c 100644
--- a/include/linux/ftrace_event.h
+++ b/include/linux/ftrace_event.h
@@ -4,6 +4,7 @@
#include <linux/ring_buffer.h>
#include <linux/trace_seq.h>
#include <linux/percpu.h>
+#include <linux/hardirq.h>
struct trace_array;
struct tracer;
@@ -130,10 +131,15 @@ struct ftrace_event_call {
void *data;
atomic_t profile_count;
- int (*profile_enable)(struct ftrace_event_call *);
- void (*profile_disable)(struct ftrace_event_call *);
+ int (*profile_enable)(void);
+ void (*profile_disable)(void);
};
+#define FTRACE_MAX_PROFILE_SIZE 2048
+
+extern char *trace_profile_buf;
+extern char *trace_profile_buf_nmi;
+
#define MAX_FILTER_PRED 32
#define MAX_FILTER_STR_VAL 256 /* Should handle KSYM_SYMBOL_LEN */
diff --git a/include/linux/kvm_host.h b/include/linux/kvm_host.h
index 4af56036a6b..b7bbb5ddd7a 100644
--- a/include/linux/kvm_host.h
+++ b/include/linux/kvm_host.h
@@ -15,7 +15,6 @@
#include <linux/sched.h>
#include <linux/mm.h>
#include <linux/preempt.h>
-#include <linux/marker.h>
#include <linux/msi.h>
#include <asm/signal.h>
diff --git a/include/linux/marker.h b/include/linux/marker.h
deleted file mode 100644
index b85e74ca782..00000000000
--- a/include/linux/marker.h
+++ /dev/null
@@ -1,221 +0,0 @@
-#ifndef _LINUX_MARKER_H
-#define _LINUX_MARKER_H
-
-/*
- * Code markup for dynamic and static tracing.
- *
- * See Documentation/marker.txt.
- *
- * (C) Copyright 2006 Mathieu Desnoyers <mathieu.desnoyers@polymtl.ca>
- *
- * This file is released under the GPLv2.
- * See the file COPYING for more details.
- */
-
-#include <stdarg.h>
-#include <linux/types.h>
-
-struct module;
-struct marker;
-
-/**
- * marker_probe_func - Type of a marker probe function
- * @probe_private: probe private data
- * @call_private: call site private data
- * @fmt: format string
- * @args: variable argument list pointer. Use a pointer to overcome C's
- * inability to pass this around as a pointer in a portable manner in
- * the callee otherwise.
- *
- * Type of marker probe functions. They receive the mdata and need to parse the
- * format string to recover the variable argument list.
- */
-typedef void marker_probe_func(void *probe_private, void *call_private,
- const char *fmt, va_list *args);
-
-struct marker_probe_closure {
- marker_probe_func *func; /* Callback */
- void *probe_private; /* Private probe data */
-};
-
-struct marker {
- const char *name; /* Marker name */
- const char *format; /* Marker format string, describing the
- * variable argument list.
- */
- char state; /* Marker state. */
- char ptype; /* probe type : 0 : single, 1 : multi */
- /* Probe wrapper */
- void (*call)(const struct marker *mdata, void *call_private, ...);
- struct marker_probe_closure single;
- struct marker_probe_closure *multi;
- const char *tp_name; /* Optional tracepoint name */
- void *tp_cb; /* Optional tracepoint callback */
-} __attribute__((aligned(8)));
-
-#ifdef CONFIG_MARKERS
-
-#define _DEFINE_MARKER(name, tp_name_str, tp_cb, format) \
- static const char __mstrtab_##name[] \
- __attribute__((section("__markers_strings"))) \
- = #name "\0" format; \
- static struct marker __mark_##name \
- __attribute__((section("__markers"), aligned(8))) = \
- { __mstrtab_##name, &__mstrtab_##name[sizeof(#name)], \
- 0, 0, marker_probe_cb, { __mark_empty_function, NULL},\
- NULL, tp_name_str, tp_cb }
-
-#define DEFINE_MARKER(name, format) \
- _DEFINE_MARKER(name, NULL, NULL, format)
-
-#define DEFINE_MARKER_TP(name, tp_name, tp_cb, format) \
- _DEFINE_MARKER(name, #tp_name, tp_cb, format)
-
-/*
- * Note : the empty asm volatile with read constraint is used here instead of a
- * "used" attribute to fix a gcc 4.1.x bug.
- * Make sure the alignment of the structure in the __markers section will
- * not add unwanted padding between the beginning of the section and the
- * structure. Force alignment to the same alignment as the section start.
- *
- * The "generic" argument controls which marker enabling mechanism must be used.
- * If generic is true, a variable read is used.
- * If generic is false, immediate values are used.
- */
-#define __trace_mark(generic, name, call_private, format, args...) \
- do { \
- DEFINE_MARKER(name, format); \
- __mark_check_format(format, ## args); \
- if (unlikely(__mark_##name.state)) { \
- (*__mark_##name.call) \
- (&__mark_##name, call_private, ## args);\
- } \
- } while (0)
-
-#define __trace_mark_tp(name, call_private, tp_name, tp_cb, format, args...) \
- do { \
- void __check_tp_type(void) \
- { \
- register_trace_##tp_name(tp_cb); \
- } \
- DEFINE_MARKER_TP(name, tp_name, tp_cb, format); \
- __mark_check_format(format, ## args); \
- (*__mark_##name.call)(&__mark_##name, call_private, \
- ## args); \
- } while (0)
-
-extern void marker_update_probe_range(struct marker *begin,
- struct marker *end);
-
-#define GET_MARKER(name) (__mark_##name)
-
-#else /* !CONFIG_MARKERS */
-#define DEFINE_MARKER(name, tp_name, tp_cb, format)
-#define __trace_mark(generic, name, call_private, format, args...) \
- __mark_check_format(format, ## args)
-#define __trace_mark_tp(name, call_private, tp_name, tp_cb, format, args...) \
- do { \
- void __check_tp_type(void) \
- { \
- register_trace_##tp_name(tp_cb); \
- } \
- __mark_check_format(format, ## args); \
- } while (0)
-static inline void marker_update_probe_range(struct marker *begin,
- struct marker *end)
-{ }
-#define GET_MARKER(name)
-#endif /* CONFIG_MARKERS */
-
-/**
- * trace_mark - Marker using code patching
- * @name: marker name, not quoted.
- * @format: format string
- * @args...: variable argument list
- *
- * Places a marker using optimized code patching technique (imv_read())
- * to be enabled when immediate values are present.
- */
-#define trace_mark(name, format, args...) \
- __trace_mark(0, name, NULL, format, ## args)
-
-/**
- * _trace_mark - Marker using variable read
- * @name: marker name, not quoted.
- * @format: format string
- * @args...: variable argument list
- *
- * Places a marker using a standard memory read (_imv_read()) to be
- * enabled. Should be used for markers in code paths where instruction
- * modification based enabling is not welcome. (__init and __exit functions,
- * lockdep, some traps, printk).
- */
-#define _trace_mark(name, format, args...) \
- __trace_mark(1, name, NULL, format, ## args)
-
-/**
- * trace_mark_tp - Marker in a tracepoint callback
- * @name: marker name, not quoted.
- * @tp_name: tracepoint name, not quoted.
- * @tp_cb: tracepoint callback. Should have an associated global symbol so it
- * is not optimized away by the compiler (should not be static).
- * @format: format string
- * @args...: variable argument list
- *
- * Places a marker in a tracepoint callback.
- */
-#define trace_mark_tp(name, tp_name, tp_cb, format, args...) \
- __trace_mark_tp(name, NULL, tp_name, tp_cb, format, ## args)
-
-/**
- * MARK_NOARGS - Format string for a marker with no argument.
- */
-#define MARK_NOARGS " "
-
-/* To be used for string format validity checking with gcc */
-static inline void __printf(1, 2) ___mark_check_format(const char *fmt, ...)
-{
-}
-
-#define __mark_check_format(format, args...) \
- do { \
- if (0) \
- ___mark_check_format(format, ## args); \
- } while (0)
-
-extern marker_probe_func __mark_empty_function;
-
-extern void marker_probe_cb(const struct marker *mdata,
- void *call_private, ...);
-
-/*
- * Connect a probe to a marker.
- * private data pointer must be a valid allocated memory address, or NULL.
- */
-extern int marker_probe_register(const char *name, const char *format,
- marker_probe_func *probe, void *probe_private);
-
-/*
- * Returns the private data given to marker_probe_register.
- */
-extern int marker_probe_unregister(const char *name,
- marker_probe_func *probe, void *probe_private);
-/*
- * Unregister a marker by providing the registered private data.
- */
-extern int marker_probe_unregister_private_data(marker_probe_func *probe,
- void *probe_private);
-
-extern void *marker_get_private_data(const char *name, marker_probe_func *probe,
- int num);
-
-/*
- * marker_synchronize_unregister must be called between the last marker probe
- * unregistration and the first one of
- * - the end of module exit function
- * - the free of any resource used by the probes
- * to ensure the code and data are valid for any possibly running probes.
- */
-#define marker_synchronize_unregister() synchronize_sched()
-
-#endif
diff --git a/include/linux/module.h b/include/linux/module.h
index f8f92d015ef..1c755b2f937 100644
--- a/include/linux/module.h
+++ b/include/linux/module.h
@@ -15,7 +15,6 @@
#include <linux/stringify.h>
#include <linux/kobject.h>
#include <linux/moduleparam.h>
-#include <linux/marker.h>
#include <linux/tracepoint.h>
#include <asm/local.h>
@@ -327,10 +326,6 @@ struct module
/* The command line arguments (may be mangled). People like
keeping pointers to this stuff */
char *args;
-#ifdef CONFIG_MARKERS
- struct marker *markers;
- unsigned int num_markers;
-#endif
#ifdef CONFIG_TRACEPOINTS
struct tracepoint *tracepoints;
unsigned int num_tracepoints;
@@ -535,8 +530,6 @@ int unregister_module_notifier(struct notifier_block * nb);
extern void print_modules(void);
-extern void module_update_markers(void);
-
extern void module_update_tracepoints(void);
extern int module_get_iter_tracepoints(struct tracepoint_iter *iter);
@@ -651,10 +644,6 @@ static inline void print_modules(void)
{
}
-static inline void module_update_markers(void)
-{
-}
-
static inline void module_update_tracepoints(void)
{
}
diff --git a/include/linux/syscalls.h b/include/linux/syscalls.h
index a8e37821cc6..7d9803cbb20 100644
--- a/include/linux/syscalls.h
+++ b/include/linux/syscalls.h
@@ -100,33 +100,25 @@ struct perf_counter_attr;
#ifdef CONFIG_EVENT_PROFILE
#define TRACE_SYS_ENTER_PROFILE(sname) \
-static int prof_sysenter_enable_##sname(struct ftrace_event_call *event_call) \
+static int prof_sysenter_enable_##sname(void) \
{ \
- int ret = 0; \
- if (!atomic_inc_return(&event_enter_##sname.profile_count)) \
- ret = reg_prof_syscall_enter("sys"#sname); \
- return ret; \
+ return reg_prof_syscall_enter("sys"#sname); \
} \
\
-static void prof_sysenter_disable_##sname(struct ftrace_event_call *event_call)\
+static void prof_sysenter_disable_##sname(void) \
{ \
- if (atomic_add_negative(-1, &event_enter_##sname.profile_count)) \
- unreg_prof_syscall_enter("sys"#sname); \
+ unreg_prof_syscall_enter("sys"#sname); \
}
#define TRACE_SYS_EXIT_PROFILE(sname) \
-static int prof_sysexit_enable_##sname(struct ftrace_event_call *event_call) \
+static int prof_sysexit_enable_##sname(void) \
{ \
- int ret = 0; \
- if (!atomic_inc_return(&event_exit_##sname.profile_count)) \
- ret = reg_prof_syscall_exit("sys"#sname); \
- return ret; \
+ return reg_prof_syscall_exit("sys"#sname); \
} \
\
-static void prof_sysexit_disable_##sname(struct ftrace_event_call *event_call) \
+static void prof_sysexit_disable_##sname(void) \
{ \
- if (atomic_add_negative(-1, &event_exit_##sname.profile_count)) \
- unreg_prof_syscall_exit("sys"#sname); \
+ unreg_prof_syscall_exit("sys"#sname); \
}
#define TRACE_SYS_ENTER_PROFILE_INIT(sname) \
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-27 09:50:51 +0000