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authorIngo Molnar <mingo@elte.hu>2010-06-09 18:55:20 +0200
committerIngo Molnar <mingo@elte.hu>2010-06-09 18:55:57 +0200
commitc726b61c6a5acc54c55ed7a0e7638cc4c5a100a8 (patch)
tree3f44aa013d31d34951e9610e79ff14c1148ad6ac /kernel/trace
parent7be7923633a142402266d642ccebf74f556a649b (diff)
parent018378c55b03f88ff513aba4e0e93b8d4a9cf241 (diff)
downloadlinux-c726b61c6a5acc54c55ed7a0e7638cc4c5a100a8.tar.bz2
Merge branch 'perf/core' of git://git.kernel.org/pub/scm/linux/kernel/git/frederic/random-tracing into perf/core
Diffstat (limited to 'kernel/trace')
-rw-r--r--kernel/trace/Kconfig37
-rw-r--r--kernel/trace/Makefile2
-rw-r--r--kernel/trace/kmemtrace.c529
-rw-r--r--kernel/trace/trace.c3
-rw-r--r--kernel/trace/trace.h20
-rw-r--r--kernel/trace/trace_boot.c185
-rw-r--r--kernel/trace/trace_entries.h62
-rw-r--r--kernel/trace/trace_event_perf.c2
-rw-r--r--kernel/trace/trace_sysprof.c7
9 files changed, 4 insertions, 843 deletions
diff --git a/kernel/trace/Kconfig b/kernel/trace/Kconfig
index 8b1797c4545b..f669092fdead 100644
--- a/kernel/trace/Kconfig
+++ b/kernel/trace/Kconfig
@@ -229,23 +229,6 @@ config FTRACE_SYSCALLS
help
Basic tracer to catch the syscall entry and exit events.
-config BOOT_TRACER
- bool "Trace boot initcalls"
- select GENERIC_TRACER
- select CONTEXT_SWITCH_TRACER
- help
- This tracer helps developers to optimize boot times: it records
- the timings of the initcalls and traces key events and the identity
- of tasks that can cause boot delays, such as context-switches.
-
- Its aim is to be parsed by the scripts/bootgraph.pl tool to
- produce pretty graphics about boot inefficiencies, giving a visual
- representation of the delays during initcalls - but the raw
- /debug/tracing/trace text output is readable too.
-
- You must pass in initcall_debug and ftrace=initcall to the kernel
- command line to enable this on bootup.
-
config TRACE_BRANCH_PROFILING
bool
select GENERIC_TRACER
@@ -371,26 +354,6 @@ config STACK_TRACER
Say N if unsure.
-config KMEMTRACE
- bool "Trace SLAB allocations"
- select GENERIC_TRACER
- help
- kmemtrace provides tracing for slab allocator functions, such as
- kmalloc, kfree, kmem_cache_alloc, kmem_cache_free, etc. Collected
- data is then fed to the userspace application in order to analyse
- allocation hotspots, internal fragmentation and so on, making it
- possible to see how well an allocator performs, as well as debug
- and profile kernel code.
-
- This requires an userspace application to use. See
- Documentation/trace/kmemtrace.txt for more information.
-
- Saying Y will make the kernel somewhat larger and slower. However,
- if you disable kmemtrace at run-time or boot-time, the performance
- impact is minimal (depending on the arch the kernel is built for).
-
- If unsure, say N.
-
config WORKQUEUE_TRACER
bool "Trace workqueues"
select GENERIC_TRACER
diff --git a/kernel/trace/Makefile b/kernel/trace/Makefile
index ffb1a5b0550e..469a1c7555a5 100644
--- a/kernel/trace/Makefile
+++ b/kernel/trace/Makefile
@@ -38,10 +38,8 @@ obj-$(CONFIG_SCHED_TRACER) += trace_sched_wakeup.o
obj-$(CONFIG_NOP_TRACER) += trace_nop.o
obj-$(CONFIG_STACK_TRACER) += trace_stack.o
obj-$(CONFIG_MMIOTRACE) += trace_mmiotrace.o
-obj-$(CONFIG_BOOT_TRACER) += trace_boot.o
obj-$(CONFIG_FUNCTION_GRAPH_TRACER) += trace_functions_graph.o
obj-$(CONFIG_TRACE_BRANCH_PROFILING) += trace_branch.o
-obj-$(CONFIG_KMEMTRACE) += kmemtrace.o
obj-$(CONFIG_WORKQUEUE_TRACER) += trace_workqueue.o
obj-$(CONFIG_BLK_DEV_IO_TRACE) += blktrace.o
ifeq ($(CONFIG_BLOCK),y)
diff --git a/kernel/trace/kmemtrace.c b/kernel/trace/kmemtrace.c
deleted file mode 100644
index bbfc1bb1660b..000000000000
--- a/kernel/trace/kmemtrace.c
+++ /dev/null
@@ -1,529 +0,0 @@
-/*
- * Memory allocator tracing
- *
- * Copyright (C) 2008 Eduard - Gabriel Munteanu
- * Copyright (C) 2008 Pekka Enberg <penberg@cs.helsinki.fi>
- * Copyright (C) 2008 Frederic Weisbecker <fweisbec@gmail.com>
- */
-
-#include <linux/tracepoint.h>
-#include <linux/seq_file.h>
-#include <linux/debugfs.h>
-#include <linux/dcache.h>
-#include <linux/fs.h>
-
-#include <linux/kmemtrace.h>
-
-#include "trace_output.h"
-#include "trace.h"
-
-/* Select an alternative, minimalistic output than the original one */
-#define TRACE_KMEM_OPT_MINIMAL 0x1
-
-static struct tracer_opt kmem_opts[] = {
- /* Default disable the minimalistic output */
- { TRACER_OPT(kmem_minimalistic, TRACE_KMEM_OPT_MINIMAL) },
- { }
-};
-
-static struct tracer_flags kmem_tracer_flags = {
- .val = 0,
- .opts = kmem_opts
-};
-
-static struct trace_array *kmemtrace_array;
-
-/* Trace allocations */
-static inline void kmemtrace_alloc(enum kmemtrace_type_id type_id,
- unsigned long call_site,
- const void *ptr,
- size_t bytes_req,
- size_t bytes_alloc,
- gfp_t gfp_flags,
- int node)
-{
- struct ftrace_event_call *call = &event_kmem_alloc;
- struct trace_array *tr = kmemtrace_array;
- struct kmemtrace_alloc_entry *entry;
- struct ring_buffer_event *event;
-
- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
- if (!event)
- return;
-
- entry = ring_buffer_event_data(event);
- tracing_generic_entry_update(&entry->ent, 0, 0);
-
- entry->ent.type = TRACE_KMEM_ALLOC;
- entry->type_id = type_id;
- entry->call_site = call_site;
- entry->ptr = ptr;
- entry->bytes_req = bytes_req;
- entry->bytes_alloc = bytes_alloc;
- entry->gfp_flags = gfp_flags;
- entry->node = node;
-
- if (!filter_check_discard(call, entry, tr->buffer, event))
- ring_buffer_unlock_commit(tr->buffer, event);
-
- trace_wake_up();
-}
-
-static inline void kmemtrace_free(enum kmemtrace_type_id type_id,
- unsigned long call_site,
- const void *ptr)
-{
- struct ftrace_event_call *call = &event_kmem_free;
- struct trace_array *tr = kmemtrace_array;
- struct kmemtrace_free_entry *entry;
- struct ring_buffer_event *event;
-
- event = ring_buffer_lock_reserve(tr->buffer, sizeof(*entry));
- if (!event)
- return;
- entry = ring_buffer_event_data(event);
- tracing_generic_entry_update(&entry->ent, 0, 0);
-
- entry->ent.type = TRACE_KMEM_FREE;
- entry->type_id = type_id;
- entry->call_site = call_site;
- entry->ptr = ptr;
-
- if (!filter_check_discard(call, entry, tr->buffer, event))
- ring_buffer_unlock_commit(tr->buffer, event);
-
- trace_wake_up();
-}
-
-static void kmemtrace_kmalloc(void *ignore,
- unsigned long call_site,
- const void *ptr,
- size_t bytes_req,
- size_t bytes_alloc,
- gfp_t gfp_flags)
-{
- kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC, call_site, ptr,
- bytes_req, bytes_alloc, gfp_flags, -1);
-}
-
-static void kmemtrace_kmem_cache_alloc(void *ignore,
- unsigned long call_site,
- const void *ptr,
- size_t bytes_req,
- size_t bytes_alloc,
- gfp_t gfp_flags)
-{
- kmemtrace_alloc(KMEMTRACE_TYPE_CACHE, call_site, ptr,
- bytes_req, bytes_alloc, gfp_flags, -1);
-}
-
-static void kmemtrace_kmalloc_node(void *ignore,
- unsigned long call_site,
- const void *ptr,
- size_t bytes_req,
- size_t bytes_alloc,
- gfp_t gfp_flags,
- int node)
-{
- kmemtrace_alloc(KMEMTRACE_TYPE_KMALLOC, call_site, ptr,
- bytes_req, bytes_alloc, gfp_flags, node);
-}
-
-static void kmemtrace_kmem_cache_alloc_node(void *ignore,
- unsigned long call_site,
- const void *ptr,
- size_t bytes_req,
- size_t bytes_alloc,
- gfp_t gfp_flags,
- int node)
-{
- kmemtrace_alloc(KMEMTRACE_TYPE_CACHE, call_site, ptr,
- bytes_req, bytes_alloc, gfp_flags, node);
-}
-
-static void
-kmemtrace_kfree(void *ignore, unsigned long call_site, const void *ptr)
-{
- kmemtrace_free(KMEMTRACE_TYPE_KMALLOC, call_site, ptr);
-}
-
-static void kmemtrace_kmem_cache_free(void *ignore,
- unsigned long call_site, const void *ptr)
-{
- kmemtrace_free(KMEMTRACE_TYPE_CACHE, call_site, ptr);
-}
-
-static int kmemtrace_start_probes(void)
-{
- int err;
-
- err = register_trace_kmalloc(kmemtrace_kmalloc, NULL);
- if (err)
- return err;
- err = register_trace_kmem_cache_alloc(kmemtrace_kmem_cache_alloc, NULL);
- if (err)
- return err;
- err = register_trace_kmalloc_node(kmemtrace_kmalloc_node, NULL);
- if (err)
- return err;
- err = register_trace_kmem_cache_alloc_node(kmemtrace_kmem_cache_alloc_node, NULL);
- if (err)
- return err;
- err = register_trace_kfree(kmemtrace_kfree, NULL);
- if (err)
- return err;
- err = register_trace_kmem_cache_free(kmemtrace_kmem_cache_free, NULL);
-
- return err;
-}
-
-static void kmemtrace_stop_probes(void)
-{
- unregister_trace_kmalloc(kmemtrace_kmalloc, NULL);
- unregister_trace_kmem_cache_alloc(kmemtrace_kmem_cache_alloc, NULL);
- unregister_trace_kmalloc_node(kmemtrace_kmalloc_node, NULL);
- unregister_trace_kmem_cache_alloc_node(kmemtrace_kmem_cache_alloc_node, NULL);
- unregister_trace_kfree(kmemtrace_kfree, NULL);
- unregister_trace_kmem_cache_free(kmemtrace_kmem_cache_free, NULL);
-}
-
-static int kmem_trace_init(struct trace_array *tr)
-{
- kmemtrace_array = tr;
-
- tracing_reset_online_cpus(tr);
-
- kmemtrace_start_probes();
-
- return 0;
-}
-
-static void kmem_trace_reset(struct trace_array *tr)
-{
- kmemtrace_stop_probes();
-}
-
-static void kmemtrace_headers(struct seq_file *s)
-{
- /* Don't need headers for the original kmemtrace output */
- if (!(kmem_tracer_flags.val & TRACE_KMEM_OPT_MINIMAL))
- return;
-
- seq_printf(s, "#\n");
- seq_printf(s, "# ALLOC TYPE REQ GIVEN FLAGS "
- " POINTER NODE CALLER\n");
- seq_printf(s, "# FREE | | | | "
- " | | | |\n");
- seq_printf(s, "# |\n\n");
-}
-
-/*
- * The following functions give the original output from kmemtrace,
- * plus the origin CPU, since reordering occurs in-kernel now.
- */
-
-#define KMEMTRACE_USER_ALLOC 0
-#define KMEMTRACE_USER_FREE 1
-
-struct kmemtrace_user_event {
- u8 event_id;
- u8 type_id;
- u16 event_size;
- u32 cpu;
- u64 timestamp;
- unsigned long call_site;
- unsigned long ptr;
-};
-
-struct kmemtrace_user_event_alloc {
- size_t bytes_req;
- size_t bytes_alloc;
- unsigned gfp_flags;
- int node;
-};
-
-static enum print_line_t
-kmemtrace_print_alloc(struct trace_iterator *iter, int flags,
- struct trace_event *event)
-{
- struct trace_seq *s = &iter->seq;
- struct kmemtrace_alloc_entry *entry;
- int ret;
-
- trace_assign_type(entry, iter->ent);
-
- ret = trace_seq_printf(s, "type_id %d call_site %pF ptr %lu "
- "bytes_req %lu bytes_alloc %lu gfp_flags %lu node %d\n",
- entry->type_id, (void *)entry->call_site, (unsigned long)entry->ptr,
- (unsigned long)entry->bytes_req, (unsigned long)entry->bytes_alloc,
- (unsigned long)entry->gfp_flags, entry->node);
-
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
- return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t
-kmemtrace_print_free(struct trace_iterator *iter, int flags,
- struct trace_event *event)
-{
- struct trace_seq *s = &iter->seq;
- struct kmemtrace_free_entry *entry;
- int ret;
-
- trace_assign_type(entry, iter->ent);
-
- ret = trace_seq_printf(s, "type_id %d call_site %pF ptr %lu\n",
- entry->type_id, (void *)entry->call_site,
- (unsigned long)entry->ptr);
-
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
- return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t
-kmemtrace_print_alloc_user(struct trace_iterator *iter, int flags,
- struct trace_event *event)
-{
- struct trace_seq *s = &iter->seq;
- struct kmemtrace_alloc_entry *entry;
- struct kmemtrace_user_event *ev;
- struct kmemtrace_user_event_alloc *ev_alloc;
-
- trace_assign_type(entry, iter->ent);
-
- ev = trace_seq_reserve(s, sizeof(*ev));
- if (!ev)
- return TRACE_TYPE_PARTIAL_LINE;
-
- ev->event_id = KMEMTRACE_USER_ALLOC;
- ev->type_id = entry->type_id;
- ev->event_size = sizeof(*ev) + sizeof(*ev_alloc);
- ev->cpu = iter->cpu;
- ev->timestamp = iter->ts;
- ev->call_site = entry->call_site;
- ev->ptr = (unsigned long)entry->ptr;
-
- ev_alloc = trace_seq_reserve(s, sizeof(*ev_alloc));
- if (!ev_alloc)
- return TRACE_TYPE_PARTIAL_LINE;
-
- ev_alloc->bytes_req = entry->bytes_req;
- ev_alloc->bytes_alloc = entry->bytes_alloc;
- ev_alloc->gfp_flags = entry->gfp_flags;
- ev_alloc->node = entry->node;
-
- return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t
-kmemtrace_print_free_user(struct trace_iterator *iter, int flags,
- struct trace_event *event)
-{
- struct trace_seq *s = &iter->seq;
- struct kmemtrace_free_entry *entry;
- struct kmemtrace_user_event *ev;
-
- trace_assign_type(entry, iter->ent);
-
- ev = trace_seq_reserve(s, sizeof(*ev));
- if (!ev)
- return TRACE_TYPE_PARTIAL_LINE;
-
- ev->event_id = KMEMTRACE_USER_FREE;
- ev->type_id = entry->type_id;
- ev->event_size = sizeof(*ev);
- ev->cpu = iter->cpu;
- ev->timestamp = iter->ts;
- ev->call_site = entry->call_site;
- ev->ptr = (unsigned long)entry->ptr;
-
- return TRACE_TYPE_HANDLED;
-}
-
-/* The two other following provide a more minimalistic output */
-static enum print_line_t
-kmemtrace_print_alloc_compress(struct trace_iterator *iter)
-{
- struct kmemtrace_alloc_entry *entry;
- struct trace_seq *s = &iter->seq;
- int ret;
-
- trace_assign_type(entry, iter->ent);
-
- /* Alloc entry */
- ret = trace_seq_printf(s, " + ");
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- /* Type */
- switch (entry->type_id) {
- case KMEMTRACE_TYPE_KMALLOC:
- ret = trace_seq_printf(s, "K ");
- break;
- case KMEMTRACE_TYPE_CACHE:
- ret = trace_seq_printf(s, "C ");
- break;
- case KMEMTRACE_TYPE_PAGES:
- ret = trace_seq_printf(s, "P ");
- break;
- default:
- ret = trace_seq_printf(s, "? ");
- }
-
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- /* Requested */
- ret = trace_seq_printf(s, "%4zu ", entry->bytes_req);
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- /* Allocated */
- ret = trace_seq_printf(s, "%4zu ", entry->bytes_alloc);
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- /* Flags
- * TODO: would be better to see the name of the GFP flag names
- */
- ret = trace_seq_printf(s, "%08x ", entry->gfp_flags);
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- /* Pointer to allocated */
- ret = trace_seq_printf(s, "0x%tx ", (ptrdiff_t)entry->ptr);
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- /* Node and call site*/
- ret = trace_seq_printf(s, "%4d %pf\n", entry->node,
- (void *)entry->call_site);
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t
-kmemtrace_print_free_compress(struct trace_iterator *iter)
-{
- struct kmemtrace_free_entry *entry;
- struct trace_seq *s = &iter->seq;
- int ret;
-
- trace_assign_type(entry, iter->ent);
-
- /* Free entry */
- ret = trace_seq_printf(s, " - ");
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- /* Type */
- switch (entry->type_id) {
- case KMEMTRACE_TYPE_KMALLOC:
- ret = trace_seq_printf(s, "K ");
- break;
- case KMEMTRACE_TYPE_CACHE:
- ret = trace_seq_printf(s, "C ");
- break;
- case KMEMTRACE_TYPE_PAGES:
- ret = trace_seq_printf(s, "P ");
- break;
- default:
- ret = trace_seq_printf(s, "? ");
- }
-
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- /* Skip requested/allocated/flags */
- ret = trace_seq_printf(s, " ");
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- /* Pointer to allocated */
- ret = trace_seq_printf(s, "0x%tx ", (ptrdiff_t)entry->ptr);
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- /* Skip node and print call site*/
- ret = trace_seq_printf(s, " %pf\n", (void *)entry->call_site);
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
-
- return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t kmemtrace_print_line(struct trace_iterator *iter)
-{
- struct trace_entry *entry = iter->ent;
-
- if (!(kmem_tracer_flags.val & TRACE_KMEM_OPT_MINIMAL))
- return TRACE_TYPE_UNHANDLED;
-
- switch (entry->type) {
- case TRACE_KMEM_ALLOC:
- return kmemtrace_print_alloc_compress(iter);
- case TRACE_KMEM_FREE:
- return kmemtrace_print_free_compress(iter);
- default:
- return TRACE_TYPE_UNHANDLED;
- }
-}
-
-static struct trace_event_functions kmem_trace_alloc_funcs = {
- .trace = kmemtrace_print_alloc,
- .binary = kmemtrace_print_alloc_user,
-};
-
-static struct trace_event kmem_trace_alloc = {
- .type = TRACE_KMEM_ALLOC,
- .funcs = &kmem_trace_alloc_funcs,
-};
-
-static struct trace_event_functions kmem_trace_free_funcs = {
- .trace = kmemtrace_print_free,
- .binary = kmemtrace_print_free_user,
-};
-
-static struct trace_event kmem_trace_free = {
- .type = TRACE_KMEM_FREE,
- .funcs = &kmem_trace_free_funcs,
-};
-
-static struct tracer kmem_tracer __read_mostly = {
- .name = "kmemtrace",
- .init = kmem_trace_init,
- .reset = kmem_trace_reset,
- .print_line = kmemtrace_print_line,
- .print_header = kmemtrace_headers,
- .flags = &kmem_tracer_flags
-};
-
-void kmemtrace_init(void)
-{
- /* earliest opportunity to start kmem tracing */
-}
-
-static int __init init_kmem_tracer(void)
-{
- if (!register_ftrace_event(&kmem_trace_alloc)) {
- pr_warning("Warning: could not register kmem events\n");
- return 1;
- }
-
- if (!register_ftrace_event(&kmem_trace_free)) {
- pr_warning("Warning: could not register kmem events\n");
- return 1;
- }
-
- if (register_tracer(&kmem_tracer) != 0) {
- pr_warning("Warning: could not register the kmem tracer\n");
- return 1;
- }
-
- return 0;
-}
-device_initcall(init_kmem_tracer);
diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c
index 644ab744e759..8683dec6946b 100644
--- a/kernel/trace/trace.c
+++ b/kernel/trace/trace.c
@@ -4596,9 +4596,6 @@ __init static int tracer_alloc_buffers(void)
register_tracer(&nop_trace);
current_trace = &nop_trace;
-#ifdef CONFIG_BOOT_TRACER
- register_tracer(&boot_tracer);
-#endif
/* All seems OK, enable tracing */
tracing_disabled = 0;
diff --git a/kernel/trace/trace.h b/kernel/trace/trace.h
index 6c45e55097ce..01ce088c1cdf 100644
--- a/kernel/trace/trace.h
+++ b/kernel/trace/trace.h
@@ -9,10 +9,7 @@
#include <linux/mmiotrace.h>
#include <linux/tracepoint.h>
#include <linux/ftrace.h>
-#include <trace/boot.h>
-#include <linux/kmemtrace.h>
#include <linux/hw_breakpoint.h>
-
#include <linux/trace_seq.h>
#include <linux/ftrace_event.h>
@@ -29,26 +26,15 @@ enum trace_type {
TRACE_MMIO_RW,
TRACE_MMIO_MAP,
TRACE_BRANCH,
- TRACE_BOOT_CALL,
- TRACE_BOOT_RET,
TRACE_GRAPH_RET,
TRACE_GRAPH_ENT,
TRACE_USER_STACK,
- TRACE_KMEM_ALLOC,
- TRACE_KMEM_FREE,
TRACE_BLK,
TRACE_KSYM,
__TRACE_LAST_TYPE,
};
-enum kmemtrace_type_id {
- KMEMTRACE_TYPE_KMALLOC = 0, /* kmalloc() or kfree(). */
- KMEMTRACE_TYPE_CACHE, /* kmem_cache_*(). */
- KMEMTRACE_TYPE_PAGES, /* __get_free_pages() and friends. */
-};
-
-extern struct tracer boot_tracer;
#undef __field
#define __field(type, item) type item;
@@ -209,17 +195,11 @@ extern void __ftrace_bad_type(void);
TRACE_MMIO_RW); \
IF_ASSIGN(var, ent, struct trace_mmiotrace_map, \
TRACE_MMIO_MAP); \
- IF_ASSIGN(var, ent, struct trace_boot_call, TRACE_BOOT_CALL);\
- IF_ASSIGN(var, ent, struct trace_boot_ret, TRACE_BOOT_RET);\
IF_ASSIGN(var, ent, struct trace_branch, TRACE_BRANCH); \
IF_ASSIGN(var, ent, struct ftrace_graph_ent_entry, \
TRACE_GRAPH_ENT); \
IF_ASSIGN(var, ent, struct ftrace_graph_ret_entry, \
TRACE_GRAPH_RET); \
- IF_ASSIGN(var, ent, struct kmemtrace_alloc_entry, \
- TRACE_KMEM_ALLOC); \
- IF_ASSIGN(var, ent, struct kmemtrace_free_entry, \
- TRACE_KMEM_FREE); \
IF_ASSIGN(var, ent, struct ksym_trace_entry, TRACE_KSYM);\
__ftrace_bad_type(); \
} while (0)
diff --git a/kernel/trace/trace_boot.c b/kernel/trace/trace_boot.c
deleted file mode 100644
index c21d5f3956ad..000000000000
--- a/kernel/trace/trace_boot.c
+++ /dev/null
@@ -1,185 +0,0 @@
-/*
- * ring buffer based initcalls tracer
- *
- * Copyright (C) 2008 Frederic Weisbecker <fweisbec@gmail.com>
- *
- */
-
-#include <linux/init.h>
-#include <linux/debugfs.h>
-#include <linux/ftrace.h>
-#include <linux/kallsyms.h>
-#include <linux/time.h>
-
-#include "trace.h"
-#include "trace_output.h"
-
-static struct trace_array *boot_trace;
-static bool pre_initcalls_finished;
-
-/* Tells the boot tracer that the pre_smp_initcalls are finished.
- * So we are ready .
- * It doesn't enable sched events tracing however.
- * You have to call enable_boot_trace to do so.
- */
-void start_boot_trace(void)
-{
- pre_initcalls_finished = true;
-}
-
-void enable_boot_trace(void)
-{
- if (boot_trace && pre_initcalls_finished)
- tracing_start_sched_switch_record();
-}
-
-void disable_boot_trace(void)
-{
- if (boot_trace && pre_initcalls_finished)
- tracing_stop_sched_switch_record();
-}
-
-static int boot_trace_init(struct trace_array *tr)
-{
- boot_trace = tr;
-
- if (!tr)
- return 0;
-
- tracing_reset_online_cpus(tr);
-
- tracing_sched_switch_assign_trace(tr);
- return 0;
-}
-
-static enum print_line_t
-initcall_call_print_line(struct trace_iterator *iter)
-{
- struct trace_entry *entry = iter->ent;
- struct trace_seq *s = &iter->seq;
- struct trace_boot_call *field;
- struct boot_trace_call *call;
- u64 ts;
- unsigned long nsec_rem;
- int ret;
-
- trace_assign_type(field, entry);
- call = &field->boot_call;
- ts = iter->ts;
- nsec_rem = do_div(ts, NSEC_PER_SEC);
-
- ret = trace_seq_printf(s, "[%5ld.%09ld] calling %s @ %i\n",
- (unsigned long)ts, nsec_rem, call->func, call->caller);
-
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
- else
- return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t
-initcall_ret_print_line(struct trace_iterator *iter)
-{
- struct trace_entry *entry = iter->ent;
- struct trace_seq *s = &iter->seq;
- struct trace_boot_ret *field;
- struct boot_trace_ret *init_ret;
- u64 ts;
- unsigned long nsec_rem;
- int ret;
-
- trace_assign_type(field, entry);
- init_ret = &field->boot_ret;
- ts = iter->ts;
- nsec_rem = do_div(ts, NSEC_PER_SEC);
-
- ret = trace_seq_printf(s, "[%5ld.%09ld] initcall %s "
- "returned %d after %llu msecs\n",
- (unsigned long) ts,
- nsec_rem,
- init_ret->func, init_ret->result, init_ret->duration);
-
- if (!ret)
- return TRACE_TYPE_PARTIAL_LINE;
- else
- return TRACE_TYPE_HANDLED;
-}
-
-static enum print_line_t initcall_print_line(struct trace_iterator *iter)
-{
- struct trace_entry *entry = iter->ent;
-
- switch (entry->type) {
- case TRACE_BOOT_CALL:
- return initcall_call_print_line(iter);
- case TRACE_BOOT_RET:
- return initcall_ret_print_line(iter);
- default:
- return TRACE_TYPE_UNHANDLED;
- }
-}
-
-struct tracer boot_tracer __read_mostly =
-{
- .name = "initcall",
- .init = boot_trace_init,
- .reset = tracing_reset_online_cpus,
- .print_line = initcall_print_line,
-};
-
-void trace_boot_call(struct boot_trace_call *bt, initcall_t fn)
-{
- struct ftrace_event_call *call = &event_boot_call;
- struct ring_buffer_event *event;
- struct ring_buffer *buffer;
- struct trace_boot_call *entry;
- struct trace_array *tr = boot_trace;
-
- if (!tr || !pre_initcalls_finished)
- return;
-
- /* Get its name now since this function could
- * disappear because it is in the .init section.
- */
- sprint_symbol(bt->func, (unsigned long)fn);
- preempt_disable();
-
- buffer = tr->buffer;
- event = trace_buffer_lock_reserve(buffer, TRACE_BOOT_CALL,
- sizeof(*entry), 0, 0);
- if (!event)
- goto out;
- entry = ring_buffer_event_data(event);
- entry->boot_call = *bt;
- if (!filter_check_discard(call, entry, buffer, event))
- trace_buffer_unlock_commit(buffer, event, 0, 0);
- out:
- preempt_enable();
-}
-
-void trace_boot_ret(struct boot_trace_ret *bt, initcall_t fn)
-{
- struct ftrace_event_call *call = &event_boot_ret;
- struct ring_buffer_event *event;
- struct ring_buffer *buffer;
- struct trace_boot_ret *entry;
- struct trace_array *tr = boot_trace;
-
- if (!tr || !pre_initcalls_finished)
- return;
-
- sprint_symbol(bt->func, (unsigned long)fn);
- preempt_disable();
-
- buffer = tr->buffer;
- event = trace_buffer_lock_reserve(buffer, TRACE_BOOT_RET,
- sizeof(*entry), 0, 0);
- if (!event)
- goto out;
- entry = ring_buffer_event_data(event);
- entry->boot_ret = *bt;
- if (!filter_check_discard(call, entry, buffer, event))
- trace_buffer_unlock_commit(buffer, event, 0, 0);
- out:
- preempt_enable();
-}
diff --git a/kernel/trace/trace_entries.h b/kernel/trace/trace_entries.h
index dc008c1240da..13abc157dbaf 100644
--- a/kernel/trace/trace_entries.h
+++ b/kernel/trace/trace_entries.h
@@ -271,33 +271,6 @@ FTRACE_ENTRY(mmiotrace_map, trace_mmiotrace_map,
__entry->map_id, __entry->opcode)
);
-FTRACE_ENTRY(boot_call, trace_boot_call,
-
- TRACE_BOOT_CALL,
-
- F_STRUCT(
- __field_struct( struct boot_trace_call, boot_call )
- __field_desc( pid_t, boot_call, caller )
- __array_desc( char, boot_call, func, KSYM_SYMBOL_LEN)
- ),
-
- F_printk("%d %s", __entry->caller, __entry->func)
-);
-
-FTRACE_ENTRY(boot_ret, trace_boot_ret,
-
- TRACE_BOOT_RET,
-
- F_STRUCT(
- __field_struct( struct boot_trace_ret, boot_ret )
- __array_desc( char, boot_ret, func, KSYM_SYMBOL_LEN)
- __field_desc( int, boot_ret, result )
- __field_desc( unsigned long, boot_ret, duration )
- ),
-
- F_printk("%s %d %lx",
- __entry->func, __entry->result, __entry->duration)
-);
#define TRACE_FUNC_SIZE 30
#define TRACE_FILE_SIZE 20
@@ -318,41 +291,6 @@ FTRACE_ENTRY(branch, trace_branch,
__entry->func, __entry->file, __entry->correct)
);
-FTRACE_ENTRY(kmem_alloc, kmemtrace_alloc_entry,
-
- TRACE_KMEM_ALLOC,
-
- F_STRUCT(
- __field( enum kmemtrace_type_id, type_id )
- __field( unsigned long, call_site )
- __field( const void *, ptr )
- __field( size_t, bytes_req )
- __field( size_t, bytes_alloc )
- __field( gfp_t, gfp_flags )
- __field( int, node )
- ),
-
- F_printk("type:%u call_site:%lx ptr:%p req:%zi alloc:%zi"
- " flags:%x node:%d",
- __entry->type_id, __entry->call_site, __entry->ptr,
- __entry->bytes_req, __entry->bytes_alloc,
- __entry->gfp_flags, __entry->node)
-);
-
-FTRACE_ENTRY(kmem_free, kmemtrace_free_entry,
-
- TRACE_KMEM_FREE,
-
- F_STRUCT(
- __field( enum kmemtrace_type_id, type_id )
- __field( unsigned long, call_site )
- __field( const void *, ptr )
- ),
-
- F_printk("type:%u call_site:%lx ptr:%p",
- __entry->type_id, __entry->call_site, __entry->ptr)
-);
-
FTRACE_ENTRY(ksym_trace, ksym_trace_entry,
TRACE_KSYM,
diff --git a/kernel/trace/trace_event_perf.c b/kernel/trace/trace_event_perf.c
index e6f65887842c..4799d7047eb0 100644
--- a/kernel/trace/trace_event_perf.c
+++ b/kernel/trace/trace_event_perf.c
@@ -9,8 +9,6 @@
#include <linux/kprobes.h>
#include "trace.h"
-EXPORT_SYMBOL_GPL(perf_arch_fetch_caller_regs);
-
static char *perf_trace_buf[4];
/*
diff --git a/kernel/trace/trace_sysprof.c b/kernel/trace/trace_sysprof.c
index a7974a552ca9..c080956f4d8e 100644
--- a/kernel/trace/trace_sysprof.c
+++ b/kernel/trace/trace_sysprof.c
@@ -33,12 +33,13 @@ static DEFINE_MUTEX(sample_timer_lock);
*/
static DEFINE_PER_CPU(struct hrtimer, stack_trace_hrtimer);
-struct stack_frame {
+struct stack_frame_user {
const void __user *next_fp;
unsigned long return_address;
};
-static int copy_stack_frame(const void __user *fp, struct stack_frame *frame)
+static int
+copy_stack_frame(const void __user *fp, struct stack_frame_user *frame)
{
int ret;
@@ -125,7 +126,7 @@ trace_kernel(struct pt_regs *regs, struct trace_array *tr,
static void timer_notify(struct pt_regs *regs, int cpu)
{
struct trace_array_cpu *data;
- struct stack_frame frame;
+ struct stack_frame_user frame;
struct trace_array *tr;
const void __user *fp;
int is_user;