diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-22 18:18:55 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2012-05-22 18:18:55 -0700 |
commit | 2ff2b289a695807e291e1ed9f639d8a3ba5f4254 (patch) | |
tree | e4b7f44e5cc1582ba2be8aeba221f4841f4c86a6 /include | |
parent | 88d6ae8dc33af12fe1c7941b1fae2767374046fd (diff) | |
parent | 73787190d04a34e6da745da893b3ae8bedde418f (diff) |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf changes from Ingo Molnar:
"Lots of changes:
- (much) improved assembly annotation support in perf report, with
jump visualization, searching, navigation, visual output
improvements and more.
- kernel support for AMD IBS PMU hardware features. Notably 'perf
record -e cycles:p' and 'perf top -e cycles:p' should work without
skid now, like PEBS does on the Intel side, because it takes
advantage of IBS transparently.
- the libtracevents library: it is the first step towards unifying
tracing tooling and perf, and it also gives a tracing library for
external tools like powertop to rely on.
- infrastructure: various improvements and refactoring of the UI
modules and related code
- infrastructure: cleanup and simplification of the profiling
targets code (--uid, --pid, --tid, --cpu, --all-cpus, etc.)
- tons of robustness fixes all around
- various ftrace updates: speedups, cleanups, robustness
improvements.
- typing 'make' in tools/ will now give you a menu of projects to
build and a short help text to explain what each does.
- ... and lots of other changes I forgot to list.
The perf record make bzImage + perf report regression you reported
should be fixed."
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (166 commits)
tracing: Remove kernel_lock annotations
tracing: Fix initial buffer_size_kb state
ring-buffer: Merge separate resize loops
perf evsel: Create events initially disabled -- again
perf tools: Split term type into value type and term type
perf hists: Fix callchain ip printf format
perf target: Add uses_mmap field
ftrace: Remove selecting FRAME_POINTER with FUNCTION_TRACER
ftrace/x86: Have x86 ftrace use the ftrace_modify_all_code()
ftrace: Make ftrace_modify_all_code() global for archs to use
ftrace: Return record ip addr for ftrace_location()
ftrace: Consolidate ftrace_location() and ftrace_text_reserved()
ftrace: Speed up search by skipping pages by address
ftrace: Remove extra helper functions
ftrace: Sort all function addresses, not just per page
tracing: change CPU ring buffer state from tracing_cpumask
tracing: Check return value of tracing_dentry_percpu()
ring-buffer: Reset head page before running self test
ring-buffer: Add integrity check at end of iter read
ring-buffer: Make addition of pages in ring buffer atomic
...
Diffstat (limited to 'include')
-rw-r--r-- | include/asm-generic/vmlinux.lds.h | 2 | ||||
-rw-r--r-- | include/linux/ftrace.h | 19 | ||||
-rw-r--r-- | include/linux/kernel.h | 13 | ||||
-rw-r--r-- | include/linux/perf_event.h | 29 | ||||
-rw-r--r-- | include/linux/ring_buffer.h | 6 |
5 files changed, 38 insertions, 31 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index 8aeadf6b553a..4e2e1cc505ab 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -486,8 +486,8 @@ CPU_DISCARD(init.data) \ MEM_DISCARD(init.data) \ KERNEL_CTORS() \ - *(.init.rodata) \ MCOUNT_REC() \ + *(.init.rodata) \ FTRACE_EVENTS() \ TRACE_SYSCALLS() \ DEV_DISCARD(init.rodata) \ diff --git a/include/linux/ftrace.h b/include/linux/ftrace.h index 72a6cabb4d5b..55e6d63d46d0 100644 --- a/include/linux/ftrace.h +++ b/include/linux/ftrace.h @@ -286,10 +286,16 @@ struct ftrace_rec_iter *ftrace_rec_iter_start(void); struct ftrace_rec_iter *ftrace_rec_iter_next(struct ftrace_rec_iter *iter); struct dyn_ftrace *ftrace_rec_iter_record(struct ftrace_rec_iter *iter); +#define for_ftrace_rec_iter(iter) \ + for (iter = ftrace_rec_iter_start(); \ + iter; \ + iter = ftrace_rec_iter_next(iter)) + + int ftrace_update_record(struct dyn_ftrace *rec, int enable); int ftrace_test_record(struct dyn_ftrace *rec, int enable); void ftrace_run_stop_machine(int command); -int ftrace_location(unsigned long ip); +unsigned long ftrace_location(unsigned long ip); extern ftrace_func_t ftrace_trace_function; @@ -308,11 +314,14 @@ ftrace_set_early_filter(struct ftrace_ops *ops, char *buf, int enable); /* defined in arch */ extern int ftrace_ip_converted(unsigned long ip); extern int ftrace_dyn_arch_init(void *data); +extern void ftrace_replace_code(int enable); extern int ftrace_update_ftrace_func(ftrace_func_t func); extern void ftrace_caller(void); extern void ftrace_call(void); extern void mcount_call(void); +void ftrace_modify_all_code(int command); + #ifndef FTRACE_ADDR #define FTRACE_ADDR ((unsigned long)ftrace_caller) #endif @@ -485,8 +494,12 @@ static inline void __ftrace_enabled_restore(int enabled) extern void trace_preempt_on(unsigned long a0, unsigned long a1); extern void trace_preempt_off(unsigned long a0, unsigned long a1); #else - static inline void trace_preempt_on(unsigned long a0, unsigned long a1) { } - static inline void trace_preempt_off(unsigned long a0, unsigned long a1) { } +/* + * Use defines instead of static inlines because some arches will make code out + * of the CALLER_ADDR, when we really want these to be a real nop. + */ +# define trace_preempt_on(a0, a1) do { } while (0) +# define trace_preempt_off(a0, a1) do { } while (0) #endif #ifdef CONFIG_FTRACE_MCOUNT_RECORD diff --git a/include/linux/kernel.h b/include/linux/kernel.h index 645231c373c8..c0d34420a913 100644 --- a/include/linux/kernel.h +++ b/include/linux/kernel.h @@ -480,15 +480,16 @@ do { \ #define trace_printk(fmt, args...) \ do { \ + static const char *trace_printk_fmt \ + __attribute__((section("__trace_printk_fmt"))) = \ + __builtin_constant_p(fmt) ? fmt : NULL; \ + \ __trace_printk_check_format(fmt, ##args); \ - if (__builtin_constant_p(fmt)) { \ - static const char *trace_printk_fmt \ - __attribute__((section("__trace_printk_fmt"))) = \ - __builtin_constant_p(fmt) ? fmt : NULL; \ \ + if (__builtin_constant_p(fmt)) \ __trace_bprintk(_THIS_IP_, trace_printk_fmt, ##args); \ - } else \ - __trace_printk(_THIS_IP_, fmt, ##args); \ + else \ + __trace_printk(_THIS_IP_, fmt, ##args); \ } while (0) extern __printf(2, 3) diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index ddbb6a901f65..8adf70e9e3cc 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -1084,10 +1084,8 @@ extern void perf_pmu_unregister(struct pmu *pmu); extern int perf_num_counters(void); extern const char *perf_pmu_name(void); -extern void __perf_event_task_sched_in(struct task_struct *prev, - struct task_struct *task); -extern void __perf_event_task_sched_out(struct task_struct *prev, - struct task_struct *next); +extern void __perf_event_task_sched(struct task_struct *prev, + struct task_struct *next); extern int perf_event_init_task(struct task_struct *child); extern void perf_event_exit_task(struct task_struct *child); extern void perf_event_free_task(struct task_struct *task); @@ -1132,11 +1130,14 @@ struct perf_sample_data { struct perf_branch_stack *br_stack; }; -static inline void perf_sample_data_init(struct perf_sample_data *data, u64 addr) +static inline void perf_sample_data_init(struct perf_sample_data *data, + u64 addr, u64 period) { + /* remaining struct members initialized in perf_prepare_sample() */ data->addr = addr; data->raw = NULL; data->br_stack = NULL; + data->period = period; } extern void perf_output_sample(struct perf_output_handle *handle, @@ -1204,20 +1205,13 @@ perf_sw_event(u32 event_id, u64 nr, struct pt_regs *regs, u64 addr) extern struct static_key_deferred perf_sched_events; -static inline void perf_event_task_sched_in(struct task_struct *prev, +static inline void perf_event_task_sched(struct task_struct *prev, struct task_struct *task) { - if (static_key_false(&perf_sched_events.key)) - __perf_event_task_sched_in(prev, task); -} - -static inline void perf_event_task_sched_out(struct task_struct *prev, - struct task_struct *next) -{ perf_sw_event(PERF_COUNT_SW_CONTEXT_SWITCHES, 1, NULL, 0); if (static_key_false(&perf_sched_events.key)) - __perf_event_task_sched_out(prev, next); + __perf_event_task_sched(prev, task); } extern void perf_event_mmap(struct vm_area_struct *vma); @@ -1292,11 +1286,8 @@ extern void perf_event_disable(struct perf_event *event); extern void perf_event_task_tick(void); #else static inline void -perf_event_task_sched_in(struct task_struct *prev, - struct task_struct *task) { } -static inline void -perf_event_task_sched_out(struct task_struct *prev, - struct task_struct *next) { } +perf_event_task_sched(struct task_struct *prev, + struct task_struct *task) { } static inline int perf_event_init_task(struct task_struct *child) { return 0; } static inline void perf_event_exit_task(struct task_struct *child) { } static inline void perf_event_free_task(struct task_struct *task) { } diff --git a/include/linux/ring_buffer.h b/include/linux/ring_buffer.h index 7be2e88f23fd..6c8835f74f79 100644 --- a/include/linux/ring_buffer.h +++ b/include/linux/ring_buffer.h @@ -96,9 +96,11 @@ __ring_buffer_alloc(unsigned long size, unsigned flags, struct lock_class_key *k __ring_buffer_alloc((size), (flags), &__key); \ }) +#define RING_BUFFER_ALL_CPUS -1 + void ring_buffer_free(struct ring_buffer *buffer); -int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size); +int ring_buffer_resize(struct ring_buffer *buffer, unsigned long size, int cpu); void ring_buffer_change_overwrite(struct ring_buffer *buffer, int val); @@ -129,7 +131,7 @@ ring_buffer_read(struct ring_buffer_iter *iter, u64 *ts); void ring_buffer_iter_reset(struct ring_buffer_iter *iter); int ring_buffer_iter_empty(struct ring_buffer_iter *iter); -unsigned long ring_buffer_size(struct ring_buffer *buffer); +unsigned long ring_buffer_size(struct ring_buffer *buffer, int cpu); void ring_buffer_reset_cpu(struct ring_buffer *buffer, int cpu); void ring_buffer_reset(struct ring_buffer *buffer); |