diff options
35 files changed, 1595 insertions, 959 deletions
diff --git a/arch/mips/include/asm/jump_label.h b/arch/mips/include/asm/jump_label.h index 7622ccf75076..1881b316ca45 100644 --- a/arch/mips/include/asm/jump_label.h +++ b/arch/mips/include/asm/jump_label.h @@ -20,16 +20,18 @@ #define WORD_INSN ".word" #endif -#define JUMP_LABEL(key, label) \ - do { \ - asm goto("1:\tnop\n\t" \ - "nop\n\t" \ - ".pushsection __jump_table, \"a\"\n\t" \ - WORD_INSN " 1b, %l[" #label "], %0\n\t" \ - ".popsection\n\t" \ - : : "i" (key) : : label); \ - } while (0) - +static __always_inline bool arch_static_branch(struct jump_label_key *key) +{ + asm goto("1:\tnop\n\t" + "nop\n\t" + ".pushsection __jump_table, \"aw\"\n\t" + WORD_INSN " 1b, %l[l_yes], %0\n\t" + ".popsection\n\t" + : : "i" (key) : : l_yes); + return false; +l_yes: + return true; +} #endif /* __KERNEL__ */ diff --git a/arch/s390/Kconfig b/arch/s390/Kconfig index 2508a6f31588..4a7f14079e03 100644 --- a/arch/s390/Kconfig +++ b/arch/s390/Kconfig @@ -88,6 +88,7 @@ config S390 select HAVE_KERNEL_XZ select HAVE_GET_USER_PAGES_FAST select HAVE_ARCH_MUTEX_CPU_RELAX + select HAVE_ARCH_JUMP_LABEL if !MARCH_G5 select ARCH_INLINE_SPIN_TRYLOCK select ARCH_INLINE_SPIN_TRYLOCK_BH select ARCH_INLINE_SPIN_LOCK diff --git a/arch/s390/include/asm/jump_label.h b/arch/s390/include/asm/jump_label.h new file mode 100644 index 000000000000..95a6cf2b5b67 --- /dev/null +++ b/arch/s390/include/asm/jump_label.h @@ -0,0 +1,37 @@ +#ifndef _ASM_S390_JUMP_LABEL_H +#define _ASM_S390_JUMP_LABEL_H + +#include <linux/types.h> + +#define JUMP_LABEL_NOP_SIZE 6 + +#ifdef CONFIG_64BIT +#define ASM_PTR ".quad" +#define ASM_ALIGN ".balign 8" +#else +#define ASM_PTR ".long" +#define ASM_ALIGN ".balign 4" +#endif + +static __always_inline bool arch_static_branch(struct jump_label_key *key) +{ + asm goto("0: brcl 0,0\n" + ".pushsection __jump_table, \"aw\"\n" + ASM_ALIGN "\n" + ASM_PTR " 0b, %l[label], %0\n" + ".popsection\n" + : : "X" (key) : : label); + return false; +label: + return true; +} + +typedef unsigned long jump_label_t; + +struct jump_entry { + jump_label_t code; + jump_label_t target; + jump_label_t key; +}; + +#endif diff --git a/arch/s390/kernel/Makefile b/arch/s390/kernel/Makefile index 64230bc392fa..5ff15dacb571 100644 --- a/arch/s390/kernel/Makefile +++ b/arch/s390/kernel/Makefile @@ -23,7 +23,7 @@ CFLAGS_sysinfo.o += -Iinclude/math-emu -Iarch/s390/math-emu -w obj-y := bitmap.o traps.o time.o process.o base.o early.o setup.o \ processor.o sys_s390.o ptrace.o signal.o cpcmd.o ebcdic.o \ s390_ext.o debug.o irq.o ipl.o dis.o diag.o mem_detect.o \ - vdso.o vtime.o sysinfo.o nmi.o sclp.o + vdso.o vtime.o sysinfo.o nmi.o sclp.o jump_label.o obj-y += $(if $(CONFIG_64BIT),entry64.o,entry.o) obj-y += $(if $(CONFIG_64BIT),reipl64.o,reipl.o) diff --git a/arch/s390/kernel/jump_label.c b/arch/s390/kernel/jump_label.c new file mode 100644 index 000000000000..44cc06bedf77 --- /dev/null +++ b/arch/s390/kernel/jump_label.c @@ -0,0 +1,59 @@ +/* + * Jump label s390 support + * + * Copyright IBM Corp. 2011 + * Author(s): Jan Glauber <jang@linux.vnet.ibm.com> + */ +#include <linux/module.h> +#include <linux/uaccess.h> +#include <linux/stop_machine.h> +#include <linux/jump_label.h> +#include <asm/ipl.h> + +#ifdef HAVE_JUMP_LABEL + +struct insn { + u16 opcode; + s32 offset; +} __packed; + +struct insn_args { + unsigned long *target; + struct insn *insn; + ssize_t size; +}; + +static int __arch_jump_label_transform(void *data) +{ + struct insn_args *args = data; + int rc; + + rc = probe_kernel_write(args->target, args->insn, args->size); + WARN_ON_ONCE(rc < 0); + return 0; +} + +void arch_jump_label_transform(struct jump_entry *entry, + enum jump_label_type type) +{ + struct insn_args args; + struct insn insn; + + if (type == JUMP_LABEL_ENABLE) { + /* brcl 15,offset */ + insn.opcode = 0xc0f4; + insn.offset = (entry->target - entry->code) >> 1; + } else { + /* brcl 0,0 */ + insn.opcode = 0xc004; + insn.offset = 0; + } + + args.target = (void *) entry->code; + args.insn = &insn; + args.size = JUMP_LABEL_NOP_SIZE; + + stop_machine(__arch_jump_label_transform, &args, NULL); +} + +#endif diff --git a/arch/sparc/include/asm/jump_label.h b/arch/sparc/include/asm/jump_label.h index 427d4684e0d2..fc73a82366f8 100644 --- a/arch/sparc/include/asm/jump_label.h +++ b/arch/sparc/include/asm/jump_label.h @@ -7,17 +7,20 @@ #define JUMP_LABEL_NOP_SIZE 4 -#define JUMP_LABEL(key, label) \ - do { \ - asm goto("1:\n\t" \ - "nop\n\t" \ - "nop\n\t" \ - ".pushsection __jump_table, \"a\"\n\t"\ - ".align 4\n\t" \ - ".word 1b, %l[" #label "], %c0\n\t" \ - ".popsection \n\t" \ - : : "i" (key) : : label);\ - } while (0) +static __always_inline bool arch_static_branch(struct jump_label_key *key) +{ + asm goto("1:\n\t" + "nop\n\t" + "nop\n\t" + ".pushsection __jump_table, \"aw\"\n\t" + ".align 4\n\t" + ".word 1b, %l[l_yes], %c0\n\t" + ".popsection \n\t" + : : "i" (key) : : l_yes); + return false; +l_yes: + return true; +} #endif /* __KERNEL__ */ diff --git a/arch/x86/include/asm/alternative.h b/arch/x86/include/asm/alternative.h index 13009d1af99a..8cdd1e247975 100644 --- a/arch/x86/include/asm/alternative.h +++ b/arch/x86/include/asm/alternative.h @@ -4,7 +4,6 @@ #include <linux/types.h> #include <linux/stddef.h> #include <linux/stringify.h> -#include <linux/jump_label.h> #include <asm/asm.h> /* @@ -191,7 +190,7 @@ extern void *text_poke(void *addr, const void *opcode, size_t len); extern void *text_poke_smp(void *addr, const void *opcode, size_t len); extern void text_poke_smp_batch(struct text_poke_param *params, int n); -#if defined(CONFIG_DYNAMIC_FTRACE) || defined(HAVE_JUMP_LABEL) +#if defined(CONFIG_DYNAMIC_FTRACE) || defined(CONFIG_JUMP_LABEL) #define IDEAL_NOP_SIZE_5 5 extern unsigned char ideal_nop5[IDEAL_NOP_SIZE_5]; extern void arch_init_ideal_nop5(void); diff --git a/arch/x86/include/asm/jump_label.h b/arch/x86/include/asm/jump_label.h index 574dbc22893a..a32b18ce6ead 100644 --- a/arch/x86/include/asm/jump_label.h +++ b/arch/x86/include/asm/jump_label.h @@ -5,20 +5,25 @@ #include <linux/types.h> #include <asm/nops.h> +#include <asm/asm.h> #define JUMP_LABEL_NOP_SIZE 5 -# define JUMP_LABEL_INITIAL_NOP ".byte 0xe9 \n\t .long 0\n\t" - -# define JUMP_LABEL(key, label) \ - do { \ - asm goto("1:" \ - JUMP_LABEL_INITIAL_NOP \ - ".pushsection __jump_table, \"aw\" \n\t"\ - _ASM_PTR "1b, %l[" #label "], %c0 \n\t" \ - ".popsection \n\t" \ - : : "i" (key) : : label); \ - } while (0) +#define JUMP_LABEL_INITIAL_NOP ".byte 0xe9 \n\t .long 0\n\t" + +static __always_inline bool arch_static_branch(struct jump_label_key *key) +{ + asm goto("1:" + JUMP_LABEL_INITIAL_NOP + ".pushsection __jump_table, \"aw\" \n\t" + _ASM_ALIGN "\n\t" + _ASM_PTR "1b, %l[l_yes], %c0 \n\t" + ".popsection \n\t" + : : "i" (key) : : l_yes); + return false; +l_yes: + return true; +} #endif /* __KERNEL__ */ diff --git a/arch/x86/kernel/alternative.c b/arch/x86/kernel/alternative.c index 4a234677e213..651454b0c811 100644 --- a/arch/x86/kernel/alternative.c +++ b/arch/x86/kernel/alternative.c @@ -679,7 +679,7 @@ void __kprobes text_poke_smp_batch(struct text_poke_param *params, int n) __stop_machine(stop_machine_text_poke, (void *)&tpp, NULL); } -#if defined(CONFIG_DYNAMIC_FTRACE) || defined(HAVE_JUMP_LABEL) +#if defined(CONFIG_DYNAMIC_FTRACE) || defined(CONFIG_JUMP_LABEL) #ifdef CONFIG_X86_64 unsigned char ideal_nop5[5] = { 0x66, 0x66, 0x66, 0x66, 0x90 }; diff --git a/arch/x86/kernel/cpu/perf_event.c b/arch/x86/kernel/cpu/perf_event.c index e638689279d3..0de6b2b31f61 100644 --- a/arch/x86/kernel/cpu/perf_event.c +++ b/arch/x86/kernel/cpu/perf_event.c @@ -31,6 +31,7 @@ #include <asm/nmi.h> #include <asm/compat.h> #include <asm/smp.h> +#include <asm/alternative.h> #if 0 #undef wrmsrl @@ -363,12 +364,18 @@ again: return new_raw_count; } -/* using X86_FEATURE_PERFCTR_CORE to later implement ALTERNATIVE() here */ static inline int x86_pmu_addr_offset(int index) { - if (boot_cpu_has(X86_FEATURE_PERFCTR_CORE)) - return index << 1; - return index; + int offset; + + /* offset = X86_FEATURE_PERFCTR_CORE ? index << 1 : index */ + alternative_io(ASM_NOP2, + "shll $1, %%eax", + X86_FEATURE_PERFCTR_CORE, + "=a" (offset), + "a" (index)); + + return offset; } static inline unsigned int x86_pmu_config_addr(int index) diff --git a/arch/x86/kernel/cpu/perf_event_p4.c b/arch/x86/kernel/cpu/perf_event_p4.c index e93fcd55fae1..ead584fb6a7d 100644 --- a/arch/x86/kernel/cpu/perf_event_p4.c +++ b/arch/x86/kernel/cpu/perf_event_p4.c @@ -468,7 +468,7 @@ static struct p4_event_bind p4_event_bind_map[] = { .opcode = P4_OPCODE(P4_EVENT_MISPRED_BRANCH_RETIRED), .escr_msr = { MSR_P4_CRU_ESCR0, MSR_P4_CRU_ESCR1 }, .escr_emask = - P4_ESCR_EMASK_BIT(P4_EVENT_MISPRED_BRANCH_RETIRED, NBOGUS), + P4_ESCR_EMASK_BIT(P4_EVENT_MISPRED_BRANCH_RETIRED, NBOGUS), .cntr = { {12, 13, 16}, {14, 15, 17} }, }, [P4_EVENT_X87_ASSIST] = { @@ -912,8 +912,7 @@ static int p4_pmu_handle_irq(struct pt_regs *regs) int idx, handled = 0; u64 val; - data.addr = 0; - data.raw = NULL; + perf_sample_data_init(&data, 0); cpuc = &__get_cpu_var(cpu_hw_events); @@ -1197,7 +1196,7 @@ static __init int p4_pmu_init(void) { unsigned int low, high; - /* If we get stripped -- indexig fails */ + /* If we get stripped -- indexing fails */ BUILD_BUG_ON(ARCH_P4_MAX_CCCR > X86_PMC_MAX_GENERIC); rdmsr(MSR_IA32_MISC_ENABLE, low, high); diff --git a/arch/x86/kernel/module.c b/arch/x86/kernel/module.c index ab23f1ad4bf1..52f256f2cc81 100644 --- a/arch/x86/kernel/module.c +++ b/arch/x86/kernel/module.c @@ -24,6 +24,7 @@ #include <linux/bug.h> #include <linux/mm.h> #include <linux/gfp.h> +#include <linux/jump_label.h> #include <asm/system.h> #include <asm/page.h> diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index bd297a20ab98..75a8692d144f 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -170,6 +170,10 @@ STRUCT_ALIGN(); \ *(__tracepoints) \ /* implement dynamic printk debug */ \ + . = ALIGN(8); \ + VMLINUX_SYMBOL(__start___jump_table) = .; \ + *(__jump_table) \ + VMLINUX_SYMBOL(__stop___jump_table) = .; \ . = ALIGN(8); \ VMLINUX_SYMBOL(__start___verbose) = .; \ *(__verbose) \ @@ -228,8 +232,6 @@ \ BUG_TABLE \ \ - JUMP_TABLE \ - \ /* PCI quirks */ \ .pci_fixup : AT(ADDR(.pci_fixup) - LOAD_OFFSET) { \ VMLINUX_SYMBOL(__start_pci_fixups_early) = .; \ @@ -589,14 +591,6 @@ #define BUG_TABLE #endif -#define JUMP_TABLE \ - . = ALIGN(8); \ - __jump_table : AT(ADDR(__jump_table) - LOAD_OFFSET) { \ - VMLINUX_SYMBOL(__start___jump_table) = .; \ - *(__jump_table) \ - VMLINUX_SYMBOL(__stop___jump_table) = .; \ - } - #ifdef CONFIG_PM_TRACE #define TRACEDATA \ . = ALIGN(4); \ diff --git a/include/linux/dynamic_debug.h b/include/linux/dynamic_debug.h index 0c9653f11c18..e747ecd48e1c 100644 --- a/include/linux/dynamic_debug.h +++ b/include/linux/dynamic_debug.h @@ -1,8 +1,6 @@ #ifndef _DYNAMIC_DEBUG_H #define _DYNAMIC_DEBUG_H -#include <linux/jump_label.h> - /* dynamic_printk_enabled, and dynamic_printk_enabled2 are bitmasks in which * bit n is set to 1 if any modname hashes into the bucket n, 0 otherwise. They * use independent hash functions, to reduce the chance of false positives. diff --git a/include/linux/jump_label.h b/include/linux/jump_label.h index 7880f18e4b86..83e745f3ead7 100644 --- a/include/linux/jump_label.h +++ b/include/linux/jump_label.h @@ -1,20 +1,43 @@ #ifndef _LINUX_JUMP_LABEL_H #define _LINUX_JUMP_LABEL_H +#include <linux/types.h> +#include <linux/compiler.h> + #if defined(CC_HAVE_ASM_GOTO) && defined(CONFIG_JUMP_LABEL) + +struct jump_label_key { + atomic_t enabled; + struct jump_entry *entries; +#ifdef CONFIG_MODULES + struct jump_label_mod *next; +#endif +}; + # include <asm/jump_label.h> # define HAVE_JUMP_LABEL #endif enum jump_label_type { + JUMP_LABEL_DISABLE = 0, JUMP_LABEL_ENABLE, - JUMP_LABEL_DISABLE }; struct module; #ifdef HAVE_JUMP_LABEL +#ifdef CONFIG_MODULES +#define JUMP_LABEL_INIT {{ 0 }, NULL, NULL} +#else +#define JUMP_LABEL_INIT {{ 0 }, NULL} +#endif + +static __always_inline bool static_branch(struct jump_label_key *key) +{ + return arch_static_branch(key); +} + extern struct jump_entry __start___jump_table[]; extern struct jump_entry __stop___jump_table[]; @@ -23,37 +46,37 @@ extern void jump_label_unlock(void); extern void arch_jump_label_transform(struct jump_entry *entry, enum jump_label_type type); extern void arch_jump_label_text_poke_early(jump_label_t addr); -extern void jump_label_update(unsigned long key, enum jump_label_type type); -extern void jump_label_apply_nops(struct module *mod); extern int jump_label_text_reserved(void *start, void *end); +extern void jump_label_inc(struct jump_label_key *key); +extern void jump_label_dec(struct jump_label_key *key); +extern bool jump_label_enabled(struct jump_label_key *key); +extern void jump_label_apply_nops(struct module *mod); -#define jump_label_enable(key) \ - jump_label_update((unsigned long)key, JUMP_LABEL_ENABLE); +#else -#define jump_label_disable(key) \ - jump_label_update((unsigned long)key, JUMP_LABEL_DISABLE); +#include <asm/atomic.h> -#else +#define JUMP_LABEL_INIT {ATOMIC_INIT(0)} -#define JUMP_LABEL(key, label) \ -do { \ - if (unlikely(*key)) \ - goto label; \ -} while (0) +struct jump_label_key { + atomic_t enabled; +}; -#define jump_label_enable(cond_var) \ -do { \ - *(cond_var) = 1; \ -} while (0) +static __always_inline bool static_branch(struct jump_label_key *key) +{ + if (unlikely(atomic_read(&key->enabled))) + return true; + return false; +} -#define jump_label_disable(cond_var) \ -do { \ - *(cond_var) = 0; \ -} while (0) +static inline void jump_label_inc(struct jump_label_key *key) +{ + atomic_inc(&key->enabled); +} -static inline int jump_label_apply_nops(struct module *mod) +static inline void jump_label_dec(struct jump_label_key *key) { - return 0; + atomic_dec(&key->enabled); } static inline int jump_label_text_reserved(void *start, void *end) @@ -64,16 +87,16 @@ static inline int jump_label_text_reserved(void *start, void *end) static inline void jump_label_lock(void) {} static inline void jump_label_unlock(void) {} -#endif +static inline bool jump_label_enabled(struct jump_label_key *key) +{ + return !!atomic_read(&key->enabled); +} -#define COND_STMT(key, stmt) \ -do { \ - __label__ jl_enabled; \ - JUMP_LABEL(key, jl_enabled); \ - if (0) { \ -jl_enabled: \ - stmt; \ - } \ -} while (0) +static inline int jump_label_apply_nops(struct module *mod) +{ + return 0; +} + +#endif #endif diff --git a/include/linux/jump_label_ref.h b/include/linux/jump_label_ref.h deleted file mode 100644 index e5d012ad92c6..000000000000 --- a/include/linux/jump_label_ref.h +++ /dev/null @@ -1,44 +0,0 @@ -#ifndef _LINUX_JUMP_LABEL_REF_H -#define _LINUX_JUMP_LABEL_REF_H - -#include <linux/jump_label.h> -#include <asm/atomic.h> - -#ifdef HAVE_JUMP_LABEL - -static inline void jump_label_inc(atomic_t *key) -{ - if (atomic_add_return(1, key) == 1) - jump_label_enable(key); -} - -static inline void jump_label_dec(atomic_t *key) -{ - if (atomic_dec_and_test(key)) - jump_label_disable(key); -} - -#else /* !HAVE_JUMP_LABEL */ - -static inline void jump_label_inc(atomic_t *key) -{ - atomic_inc(key); -} - -static inline void jump_label_dec(atomic_t *key) -{ - atomic_dec(key); -} - -#undef JUMP_LABEL -#define JUMP_LABEL(key, label) \ -do { \ - if (unlikely(__builtin_choose_expr( \ - __builtin_types_compatible_p(typeof(key), atomic_t *), \ - atomic_read((atomic_t *)(key)), *(key)))) \ - goto label; \ -} while (0) - -#endif /* HAVE_JUMP_LABEL */ - -#endif /* _LINUX_JUMP_LABEL_REF_H */ diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index ee9f1e782800..9eec53d97370 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -505,7 +505,7 @@ struct perf_guest_info_callbacks { #include <linux/ftrace.h> #include <linux/cpu.h> #include <linux/irq_work.h> -#include <linux/jump_label_ref.h> +#include <linux/jump_label.h> #include <asm/atomic.h> #include <asm/local.h> @@ -1034,7 +1034,7 @@ static inline int is_software_event(struct perf_event *event) return event->pmu->task_ctx_nr == perf_sw_context; } -extern atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX]; +extern struct jump_label_key perf_swevent_enabled[PERF_COUNT_SW_MAX]; extern void __perf_sw_event(u32, u64, int, struct pt_regs *, u64); @@ -1063,22 +1063,21 @@ perf_sw_event(u32 event_id, u64 nr, int nmi, struct pt_regs *regs, u64 addr) { struct pt_regs hot_regs; - JUMP_LABEL(&perf_swevent_enabled[event_id], have_event); - return; - -have_event: - if (!regs) { - perf_fetch_caller_regs(&hot_regs); - regs = &hot_regs; + if (static_branch(&perf_swevent_enabled[event_id])) { + if (!regs) { + perf_fetch_caller_regs(&hot_regs); + regs = &hot_regs; + } + __perf_sw_event(event_id, nr, nmi, regs, addr); } - __perf_sw_event(event_id, nr, nmi, regs, addr); } -extern atomic_t perf_sched_events; +extern struct jump_label_key perf_sched_events; static inline void perf_event_task_sched_in(struct task_struct *task) { - COND_STMT(&perf_sched_events, __perf_event_task_sched_in(task)); + if (static_branch(&perf_sched_events)) + __perf_event_task_sched_in(task); } static inline diff --git a/include/linux/tracepoint.h b/include/linux/tracepoint.h index 97c84a58efb8..d530a4460a0b 100644 --- a/include/linux/tracepoint.h +++ b/include/linux/tracepoint.h @@ -29,7 +29,7 @@ struct tracepoint_func { struct tracepoint { const char *name; /* Tracepoint name */ - int state; /* State. */ + struct jump_label_key key; void (*regfunc)(void); void (*unregfunc)(void); struct tracepoint_func __rcu *funcs; @@ -146,9 +146,7 @@ void tracepoint_update_probe_range(struct tracepoint * const *begin, extern struct tracepoint __tracepoint_##name; \ static inline void trace_##name(proto) \ { \ - JUMP_LABEL(&__tracepoint_##name.state, do_trace); \ - return; \ -do_trace: \ + if (static_branch(&__tracepoint_##name.key)) \ __DO_TRACE(&__tracepoint_##name, \ TP_PROTO(data_proto), \ TP_ARGS(data_args), \ @@ -176,14 +174,14 @@ do_trace: \ * structures, so we create an array of pointers that will be used for iteration * on the tracepoints. */ -#define DEFINE_TRACE_FN(name, reg, unreg) \ - static const char __tpstrtab_##name[] \ - __attribute__((section("__tracepoints_strings"))) = #name; \ - struct tracepoint __tracepoint_##name \ - __attribute__((section("__tracepoints"))) = \ - { __tpstrtab_##name, 0, reg, unreg, NULL }; \ - static struct tracepoint * const __tracepoint_ptr_##name __used \ - __attribute__((section("__tracepoints_ptrs"))) = \ +#define DEFINE_TRACE_FN(name, reg, unreg) \ + static const char __tpstrtab_##name[] \ + __attribute__((section("__tracepoints_strings"))) = #name; \ + struct tracepoint __tracepoint_##name \ + __attribute__((section("__tracepoints"))) = \ + { __tpstrtab_##name, JUMP_LABEL_INIT, reg, unreg, NULL };\ + static struct tracepoint * const __tracepoint_ptr_##name __used \ + __attribute__((section("__tracepoints_ptrs"))) = \ &__tracepoint_##name; #define DEFINE_TRACE(name) \ diff --git a/kernel/jump_label.c b/kernel/jump_label.c index 3b79bd938330..74d1c099fbd1 100644 --- a/kernel/jump_label.c +++ b/kernel/jump_label.c @@ -2,43 +2,23 @@ * jump label support * * Copyright (C) 2009 Jason Baron <jbaron@redhat.com> + * Copyright (C) 2011 Peter Zijlstra <pzijlstr@redhat.com> * */ -#include <linux/jump_label.h> #include <linux/memory.h> #include <linux/uaccess.h> #include <linux/module.h> #include <linux/list.h> -#include <linux/jhash.h> #include <linux/slab.h> #include <linux/sort.h> #include <linux/err.h> +#include <linux/jump_label.h> #ifdef HAVE_JUMP_LABEL -#define JUMP_LABEL_HASH_BITS 6 -#define JUMP_LABEL_TABLE_SIZE (1 << JUMP_LABEL_HASH_BITS) -static struct hlist_head jump_label_table[JUMP_LABEL_TABLE_SIZE]; - /* mutex to protect coming/going of the the jump_label table */ static DEFINE_MUTEX(jump_label_mutex); -struct jump_label_entry { - struct hlist_node hlist; - struct jump_entry *table; - int nr_entries; - /* hang modules off here */ - struct hlist_head modules; - unsigned long key; -}; - -struct jump_label_module_entry { - struct hlist_node hlist; - struct jump_entry *table; - int nr_entries; - struct module *mod; -}; - void jump_label_lock(void) { mutex_lock(&jump_label_mutex); @@ -49,6 +29,11 @@ void jump_label_unlock(void) mutex_unlock(&jump_label_mutex); } +bool jump_label_enabled(struct jump_label_key *key) +{ + return !!atomic_read(&key->enabled); +} + static int jump_label_cmp(const void *a, const void *b) { const struct jump_entry *jea = a; @@ -64,7 +49,7 @@ static int jump_label_cmp(const void *a, const void *b) } static void -sort_jump_label_entries(struct jump_entry *start, struct jump_entry *stop) +jump_label_sort_entries(struct jump_entry *start, struct jump_entry *stop) { unsigned long size; @@ -73,118 +58,25 @@ sort_jump_label_entries(struct jump_entry *start, struct jump_entry *stop) sort(start, size, sizeof(struct jump_entry), jump_label_cmp, NULL); } -static struct jump_label_entry *get_jump_label_entry(jump_label_t key) -{ - struct hlist_head *head; - struct hlist_node *node; - struct jump_label_entry *e; - u32 hash = jhash((void *)&key, sizeof(jump_label_t), 0); - - head = &jump_label_table[hash & (JUMP_LABEL_TABLE_SIZE - 1)]; - hlist_for_each_entry(e, node, head, hlist) { - if (key == e->key) - return e; - } - return NULL; -} +static void jump_label_update(struct jump_label_key *key, int enable); -static struct jump_label_entry * -add_jump_label_entry(jump_label_t key, int nr_entries, struct jump_entry *table) +void jump_label_inc(struct jump_label_key *key) { - struct hlist_head *head; - struct jump_label_entry *e; - u32 hash; - - e = get_jump_label_entry(key); - if (e) - return ERR_PTR(-EEXIST); - - e = kmalloc(sizeof(struct jump_label_entry), GFP_KERNEL); - if (!e) - return ERR_PTR(-ENOMEM); - - hash = jhash((void *)&key, sizeof(jump_label_t), 0); - head = &jump_label_table[hash & (JUMP_LABEL_TABLE_SIZE - 1)]; - e->key = key; - e->table = table; - e->nr_entries = nr_entries; - INIT_HLIST_HEAD(&(e->modules)); - hlist_add_head(&e->hlist, head); - return e; -} + if (atomic_inc_not_zero(&key->enabled)) + return; -static int -build_jump_label_hashtable(struct jump_entry *start, struct jump_entry *stop) -{ - struct jump_entry *iter, *iter_begin; - struct jump_label_entry *entry; - int count; - - sort_jump_label_entries(start, stop); - iter = start; - while (iter < stop) { - entry = get_jump_label_entry(iter->key); - if (!entry) { - iter_begin = iter; - count = 0; - while ((iter < stop) && - (iter->key == iter_begin->key)) { - iter++; - count++; - } - entry = add_jump_label_entry(iter_begin->key, - count, iter_begin); - if (IS_ERR(entry)) - return PTR_ERR(entry); - } else { - WARN_ONCE(1, KERN_ERR "build_jump_hashtable: unexpected entry!\n"); - return -1; - } - } - return 0; + jump_label_lock(); + if (atomic_add_return(1, &key->enabled) == 1) + jump_label_update(key, JUMP_LABEL_ENABLE); + jump_label_unlock(); } -/*** - * jump_label_update - update jump label text - * @key - key value associated with a a jump label - * @type - enum set to JUMP_LABEL_ENABLE or JUMP_LABEL_DISABLE - * - * Will enable/disable the jump for jump label @key, depending on the - * value of @type. - * - */ - -void jump_label_update(unsigned long key, enum jump_label_type type) +void jump_label_dec(struct jump_label_key *key) { - struct jump_entry *iter; - struct jump_label_entry *entry; - struct hlist_node *module_node; - struct jump_label_module_entry *e_module; - int count; + if (!atomic_dec_and_mutex_lock(&key->enabled, &jump_label_mutex)) + return; - jump_label_lock(); - entry = get_jump_label_entry((jump_label_t)key); - if (entry) { - count = entry->nr_entries; - iter = entry->table; - while (count--) { - if (kernel_text_address(iter->code)) - arch_jump_label_transform(iter, type); - iter++; - } - /* eanble/disable jump labels in modules */ - hlist_for_each_entry(e_module, module_node, &(entry->modules), - hlist) { - count = e_module->nr_entries; - iter = e_module->table; - while (count--) { - if (iter->key && - kernel_text_address(iter->code)) - arch_jump_label_transform(iter, type); - iter++; - } - } - } + jump_label_update(key, JUMP_LABEL_DISABLE); jump_label_unlock(); } @@ -197,77 +89,33 @@ static int addr_conflict(struct jump_entry *entry, void *start, void *end) return 0; } -#ifdef CONFIG_MODULES - -static int module_conflict(void *start, void *end) +static int __jump_label_text_reserved(struct jump_entry *iter_start, + struct jump_entry *iter_stop, void *start, void *end) { - struct hlist_head *head; - struct hlist_node *node, *node_next, *module_node, *module_node_next; - struct jump_label_entry *e; - struct jump_label_module_entry *e_module; struct jump_entry *iter; - int i, count; - int conflict = 0; - - for (i = 0; i < JUMP_LABEL_TABLE_SIZE; i++) { - head = &jump_label_table[i]; - hlist_for_each_entry_safe(e, node, node_next, head, hlist) { - hlist_for_each_entry_safe(e_module, module_node, - module_node_next, - &(e->modules), hlist) { - count = e_module->nr_entries; - iter = e_module->table; - while (count--) { - if (addr_conflict(iter, start, end)) { - conflict = 1; - goto out; - } - iter++; - } - } - } - } -out: - return conflict; -} - -#endif - -/*** - * jump_label_text_reserved - check if addr range is reserved - * @start: start text addr - * @end: end text addr - * - * checks if the text addr located between @start and @end - * overlaps with any of the jump label patch addresses. Code - * that wants to modify kernel text should first verify that - * it does not overlap with any of the jump label addresses. - * Caller must hold jump_label_mutex. - * - * returns 1 if there is an overlap, 0 otherwise - */ -int jump_label_text_reserved(void *start, void *end) -{ - struct jump_entry *iter; - struct jump_entry *iter_start = __start___jump_table; - struct jump_entry *iter_stop = __start___jump_table; - int conflict = 0; iter = iter_start; while (iter < iter_stop) { - if (addr_conflict(iter, start, end)) { - conflict = 1; - goto out; - } + if (addr_conflict(iter, start, end)) + return 1; iter++; } - /* now check modules */ -#ifdef CONFIG_MODULES - conflict = module_conflict(start, end); -#endif -out: - return conflict; + return 0; +} + +static void __jump_label_update(struct jump_label_key *key, + struct jump_entry *entry, int enable) +{ + for (; entry->key == (jump_label_t)(unsigned long)key; entry++) { + /* + * entry->code set to 0 invalidates module init text sections + * kernel_text_address() verifies we are not in core kernel + * init code, see jump_label_invalidate_module_init(). + */ + if (entry->code && kernel_text_address(entry->code)) + arch_jump_label_transform(entry, enable); + } } /* @@ -277,142 +125,173 @@ void __weak arch_jump_label_text_poke_early(jump_label_t addr) { } -static __init int init_jump_label(void) +static __init int jump_label_init(void) { - int ret; struct jump_entry *iter_start = __start___jump_table; struct jump_entry *iter_stop = __stop___jump_table; + struct jump_label_key *key = NULL; struct jump_entry *iter; jump_label_lock(); - ret = build_jump_label_hashtable(__start___jump_table, - __stop___jump_table); - iter = iter_start; - while (iter < iter_stop) { + jump_label_sort_entries(iter_start, iter_stop); + + for (iter = iter_start; iter < iter_stop; iter++) { arch_jump_label_text_poke_early(iter->code); - iter++; + if (iter->key == (jump_label_t)(unsigned long)key) + continue; + + key = (struct jump_label_key *)(unsigned long)iter->key; + atomic_set(&key->enabled, 0); + key->entries = iter; +#ifdef CONFIG_MODULES + key->next = NULL; +#endif } jump_label_unlock(); - return ret; + + return 0; } -early_initcall(init_jump_label); +early_initcall(jump_label_init); #ifdef CONFIG_MODULES -static struct jump_label_module_entry * -add_jump_label_module_entry(struct jump_label_entry *entry, - struct jump_entry *iter_begin, - int count, struct module *mod) +struct jump_label_mod { + struct jump_label_mod *next; + struct jump_entry *entries; + struct module *mod; +}; + +static int __jump_label_mod_text_reserved(void *start, void *end) +{ + struct module *mod; + + mod = __module_text_address((unsigned long)start); + if (!mod) + return 0; + + WARN_ON_ONCE(__module_text_address((unsigned long)end) != mod); + + return __jump_label_text_reserved(mod->jump_entries, + mod->jump_entries + mod->num_jump_entries, + start, end); +} + +static void __jump_label_mod_update(struct jump_label_key *key, int enable) +{ + struct jump_label_mod *mod = key->next; + + while (mod) { + __jump_label_update(key, mod->entries, enable); + mod = mod->next; + } +} + +/*** + * apply_jump_label_nops - patch module jump labels with arch_get_jump_label_nop() + * @mod: module to patch + * + * Allow for run-time selection of the optimal nops. Before the module + * loads patch these with arch_get_jump_label_nop(), which is specified by + * the arch specific jump label code. + */ +void jump_label_apply_nops(struct module *mod) { - struct jump_label_module_entry *e; - - e = kmalloc(sizeof(struct jump_label_module_entry), GFP_KERNEL); - if (!e) - return ERR_PTR(-ENOMEM); - e->mod = mod; - e->nr_entries = count; - e->table = iter_begin; - hlist_add_head(&e->hlist, &entry->modules); - return e; + struct jump_entry *iter_start = mod->jump_entries; + struct jump_entry *iter_stop = iter_start + mod->num_jump_entries; + struct jump_entry *iter; + + /* if the module doesn't have jump label entries, just return */ + if (iter_start == iter_stop) + return; + + for (iter = iter_start; iter < iter_stop; iter++) + arch_jump_label_text_poke_early(iter->code); } -static int add_jump_label_module(struct module *mod) +static int jump_label_add_module(struct module *mod) { - struct jump_entry *iter, *iter_begin; - struct jump_label_entry *entry; - struct jump_label_module_entry *module_entry; - int count; + struct jump_entry *iter_start = mod->jump_entries; + struct jump_entry *iter_stop = iter_start + mod->num_jump_entries; + struct jump_entry *iter; + struct jump_label_key *key = NULL; + struct jump_label_mod *jlm; /* if the module doesn't have jump label entries, just return */ - if (!mod->num_jump_entries) + if (iter_start == iter_stop) return 0; - sort_jump_label_entries(mod->jump_entries, - mod->jump_entries + mod->num_jump_entries); - iter = mod->jump_entries; - while (iter < mod->jump_entries + mod->num_jump_entries) { - entry = get_jump_label_entry(iter->key); - iter_begin = iter; - count = 0; - while ((iter < mod->jump_entries + mod->num_jump_entries) && - (iter->key == iter_begin->key)) { - iter++; - count++; - } - if (!entry) { - entry = add_jump_label_entry(iter_begin->key, 0, NULL); - if (IS_ERR(entry)) - return PTR_ERR(entry); + jump_label_sort_entries(iter_start, iter_stop); + + for (iter = iter_start; iter < iter_stop; iter++) { + if (iter->key == (jump_label_t)(unsigned long)key) + continue; + + key = (struct jump_label_key *)(unsigned long)iter->key; + + if (__module_address(iter->key) == mod) { + atomic_set(&key->enabled, 0); + key->entries = iter; + key->next = NULL; + continue; } - module_entry = add_jump_label_module_entry(entry, iter_begin, - count, mod); - if (IS_ERR(module_entry)) - return PTR_ERR(module_entry); + + jlm = kzalloc(sizeof(struct jump_label_mod), GFP_KERNEL); + if (!jlm) + return -ENOMEM; + + jlm->mod = mod; + jlm->entries = iter; + jlm->next = key->next; + key->next = jlm; + + if (jump_label_enabled(key)) + __jump_label_update(key, iter, JUMP_LABEL_ENABLE); } + return 0; } -static void remove_jump_label_module(struct module *mod) +static void jump_label_del_module(struct module *mod) { - struct hlist_head *head; - struct hlist_node *node, *node_next, *module_node, *module_node_next; - struct jump_label_entry *e; - struct jump_label_module_entry *e_module; - int i; + struct jump_entry *iter_start = mod->jump_entries; + struct jump_entry *iter_stop = iter_start + mod->num_jump_entries; + struct jump_entry *iter; + struct jump_label_key *key = NULL; + struct jump_label_mod *jlm, **prev; - /* if the module doesn't have jump label entries, just return */ - if (!mod->num_jump_entries) - return; + for (iter = iter_start; iter < iter_stop; iter++) { + if (iter->key == (jump_label_t)(unsigned long)key) + continue; + + key = (struct jump_label_key *)(unsigned long)iter->key; + + if (__module_address(iter->key) == mod) + continue; + + prev = &key->next; + jlm = key->next; - for (i = 0; i < JUMP_LABEL_TABLE_SIZE; i++) { - head = &jump_label_table[i]; - hlist_for_each_entry_safe(e, node, node_next, head, hlist) { - hlist_for_each_entry_safe(e_module, module_node, - module_node_next, - &(e->modules), hlist) { - if (e_module->mod == mod) { - hlist_del(&e_module->hlist); - kfree(e_module); - } - } - if (hlist_empty(&e->modules) && (e->nr_entries == 0)) { - hlist_del(&e->hlist); - kfree(e); - } + while (jlm && jlm->mod != mod) { + prev = &jlm->next; + jlm = jlm->next; + } + + if (jlm) { + *prev = jlm->next; + kfree(jlm); } } } -static void remove_jump_label_module_init(struct module *mod) +static void jump_label_invalidate_module_init(struct module *mod) { - struct hlist_head *head; - struct hlist_node *node, *node_next, *module_node, *module_node_next; - struct jump_label_entry *e; - struct jump_label_module_entry *e_module; + struct jump_entry *iter_start = mod->jump_entries; + struct jump_entry *iter_stop = iter_start + mod->num_jump_entries; struct jump_entry *iter; - int i, count; - - /* if the module doesn't have jump label entries, just return */ - if (!mod->num_jump_entries) - return; - for (i = 0; i < JUMP_LABEL_TABLE_SIZE; i++) { - head = &jump_label_table[i]; - hlist_for_each_entry_safe(e, node, node_next, head, hlist) { - hlist_for_each_entry_safe(e_module, module_node, - module_node_next, - &(e->modules), hlist) { - if (e_module->mod != mod) - continue; - count = e_module->nr_entries; - iter = e_module->table; - while (count--) { - if (within_module_init(iter->code, mod)) - iter->key = 0; - iter++; - } - } - } + for (iter = iter_start; iter < iter_stop; iter++) { + if (within_module_init(iter->code, mod)) + iter->code = 0; } } @@ -426,59 +305,77 @@ jump_label_module_notify(struct notifier_block *self, unsigned long val, switch (val) { case MODULE_STATE_COMING: jump_label_lock(); - ret = add_jump_label_module(mod); + ret = jump_label_add_module(mod); if (ret) - remove_jump_label_module(mod); + jump_label_del_module(mod); jump_label_unlock(); break; case MODULE_STATE_GOING: jump_label_lock(); - remove_jump_label_module(mod); + jump_label_del_module(mod); jump_label_unlock(); break; case MODULE_STATE_LIVE: jump_label_lock(); - remove_jump_label_module_init(mod); + jump_label_invalidate_module_init(mod); jump_label_unlock(); break; } - return ret; -} -/*** - * apply_jump_label_nops - patch module jump labels with arch_get_jump_label_nop() - * @mod: module to patch - * - * Allow for run-time selection of the optimal nops. Before the module - * loads patch these with arch_get_jump_label_nop(), which is specified by - * the arch specific jump label code. - */ -void jump_label_apply_nops(struct module *mod) -{ - struct jump_entry *iter; - - /* if the module doesn't have jump label entries, just return */ - if (!mod->num_jump_entries) - return; - - iter = mod->jump_entries; - while (iter < mod->jump_entries + mod->num_jump_entries) { - arch_jump_label_text_poke_early(iter->code); - iter++; - } + return notifier_from_errno(ret); } struct notifier_block jump_label_module_nb = { .notifier_call = jump_label_module_notify, - .priority = 0, + .priority = 1, /* higher than tracepoints */ }; -static __init int init_jump_label_module(void) +static __init int jump_label_init_module(void) { return register_module_notifier(&jump_label_module_nb); } -early_initcall(init_jump_label_module); +early_initcall(jump_label_init_module); #endif /* CONFIG_MODULES */ +/*** + * jump_label_text_reserved - check if addr range is reserved + * @start: start text addr + * @end: end text addr + * + * checks if the text addr located between @start and @end + * overlaps with any of the jump label patch addresses. Code + * that wants to modify kernel text should first verify that + * it does not overlap with any of the jump label addresses. + * Caller must hold jump_label_mutex. + * + * returns 1 if there is an overlap, 0 otherwise + */ +int jump_label_text_reserved(void *start, void *end) +{ + int ret = __jump_label_text_reserved(__start___jump_table, + __stop___jump_table, start, end); + + if (ret) + return ret; + +#ifdef CONFIG_MODULES + ret = __jump_label_mod_text_reserved(start, end); +#endif + return ret; +} + +static void jump_label_update(struct jump_label_key *key, int enable) +{ + struct jump_entry *entry = key->entries; + + /* if there are no users, entry can be NULL */ + if (entry) + __jump_label_update(key, entry, enable); + +#ifdef CONFIG_MODULES + __jump_label_mod_update(key, enable); +#endif +} + #endif diff --git a/kernel/perf_event.c b/kernel/perf_event.c index 8e81a9860a0d..440bc485bbff 100644 --- a/kernel/perf_event.c +++ b/kernel/perf_event.c @@ -125,7 +125,7 @@ enum event_type_t { * perf_sched_events : >0 events exist * perf_cgroup_events: >0 per-cpu cgroup events exist on this cpu */ -atomic_t perf_sched_events __read_mostly; +struct jump_label_key perf_sched_events __read_mostly; static DEFINE_PER_CPU(atomic_t, perf_cgroup_events); static atomic_t nr_mmap_events __read_mostly; @@ -5429,7 +5429,7 @@ fail: return err; } -atomic_t perf_swevent_enabled[PERF_COUNT_SW_MAX]; +struct jump_label_key perf_swevent_enabled[PERF_COUNT_SW_MAX]; static void sw_perf_event_destroy(struct perf_event *event) { diff --git a/kernel/trace/trace.c b/kernel/trace/trace.c index d38c16a06a6f..e0e14ce0caab 100644 --- a/kernel/trace/trace.c +++ b/kernel/trace/trace.c @@ -2013,9 +2013,10 @@ enum print_line_t print_trace_line(struct trace_iterator *iter) { enum print_line_t ret; - if (iter->lost_events) - trace_seq_printf(&iter->seq, "CPU:%d [LOST %lu EVENTS]\n", - iter->cpu, iter->lost_events); + if (iter->lost_events && + !trace_seq_printf(&iter->seq, "CPU:%d [LOST %lu EVENTS]\n", + iter->cpu, iter->lost_events)) + return TRACE_TYPE_PARTIAL_LINE; if (iter->trace && iter->trace->print_line) { ret = iter->trace->print_line(iter); @@ -3229,6 +3230,14 @@ waitagain: if (iter->seq.len >= cnt) break; + + /* + * Setting the full flag means we reached the trace_seq buffer + * size and we should leave by partial output condition above. + * One of the trace_seq_* functions is not used properly. + */ + WARN_ONCE(iter->seq.full, "full flag set for trace type %d", + iter->ent->type); } trace_access_unlock(iter->cpu_file); trace_event_read_unlock(); diff --git a/kernel/trace/trace_output.c b/kernel/trace/trace_output.c index 456be9063c2d..cf535ccedc86 100644 --- a/kernel/trace/trace_output.c +++ b/kernel/trace/trace_output.c @@ -830,6 +830,9 @@ EXPORT_SYMBOL_GPL(unregister_ftrace_event); enum print_line_t trace_nop_print(struct trace_iterator *iter, int flags, struct trace_event *event) { + if (!trace_seq_printf(&iter->seq, "type: %d\n", iter->ent->type)) + return TRACE_TYPE_PARTIAL_LINE; + return TRACE_TYPE_HANDLED; } diff --git a/kernel/trace/trace_printk.c b/kernel/trace/trace_printk.c index 2547d8813cf0..dff763b7baf1 100644 --- a/kernel/trace/trace_printk.c +++ b/kernel/trace/trace_printk.c @@ -32,7 +32,7 @@ static DEFINE_MUTEX(btrace_mutex); struct trace_bprintk_fmt { struct list_head list; - char fmt[0]; + const char *fmt; }; static inline struct trace_bprintk_fmt *lookup_format(const char *fmt) @@ -49,6 +49,7 @@ static void hold_module_trace_bprintk_format(const char **start, const char **end) { const char **iter; + char *fmt; mutex_lock(&btrace_mutex); for (iter = start; iter < end; iter++) { @@ -58,14 +59,18 @@ void hold_module_trace_bprintk_format(const char **start, const char **end) continue; } - tb_fmt = kmalloc(offsetof(struct trace_bprintk_fmt, fmt) - + strlen(*iter) + 1, GFP_KERNEL); - if (tb_fmt) { + tb_fmt = kmalloc(sizeof(*tb_fmt), GFP_KERNEL); + if (tb_fmt) + fmt = kmalloc(strlen(*iter) + 1, GFP_KERNEL); + if (tb_fmt && fmt) { list_add_tail(&tb_fmt->list, &trace_bprintk_fmt_list); - strcpy(tb_fmt->fmt, *iter); + strcpy(fmt, *iter); + tb_fmt->fmt = fmt; *iter = tb_fmt->fmt; - } else + } else { + kfree(tb_fmt); *iter = NULL; + } } mutex_unlock(&btrace_mutex); } @@ -84,6 +89,76 @@ static int module_trace_bprintk_format_notify(struct notifier_block *self, return 0; } +/* + * The debugfs/tracing/printk_formats file maps the addresses with + * the ASCII formats that are used in the bprintk events in the + * buffer. For userspace tools to be able to decode the events from + * the buffer, they need to be able to map the address with the format. + * + * The addresses of the bprintk formats are in their own section + * __trace_printk_fmt. But for modules we copy them into a link list. + * The code to print the formats and their addresses passes around the + * address of the fmt string. If the fmt address passed into the seq + * functions is within the kernel core __trace_printk_fmt section, then + * it simply uses the next pointer in the list. + * + * When the fmt pointer is outside the kernel core __trace_printk_fmt + * section, then we need to read the link list pointers. The trick is + * we pass the address of the string to the seq function just like + * we do for the kernel core formats. To get back the structure that + * holds the format, we simply use containerof() and then go to the + * next format in the list. + */ +static const char ** +find_next_mod_format(int start_index, void *v, const char **fmt, loff_t *pos) +{ + struct trace_bprintk_fmt *mod_fmt; + + if (list_empty(&trace_bprintk_fmt_list)) + return NULL; + + /* + * v will point to the address of the fmt record from t_next + * v will be NULL from t_start. + * If this is the first pointer or called from start + * then we need to walk the list. + */ + if (!v || start_index == *pos) { + struct trace_bprintk_fmt *p; + + /* search the module list */ + list_for_each_entry(p, &trace_bprintk_fmt_list, list) { + if (start_index == *pos) + return &p->fmt; + start_index++; + } + /* pos > index */ + return NULL; + } + + /* + * v points to the address of the fmt field in the mod list + * structure that holds the module print format. + */ + mod_fmt = container_of(v, typeof(*mod_fmt), fmt); + if (mod_fmt->list.next == &trace_bprintk_fmt_list) + return NULL; + + mod_fmt = container_of(mod_fmt->list.next, typeof(*mod_fmt), list); + + return &mod_fmt->fmt; +} + +static void format_mod_start(void) +{ + mutex_lock(&btrace_mutex); +} + +static void format_mod_stop(void) +{ + mutex_unlock(&btrace_mutex); +} + #else /* !CONFIG_MODULES */ __init static int module_trace_bprintk_format_notify(struct notifier_block *self, @@ -91,6 +166,13 @@ module_trace_bprintk_format_notify(struct notifier_block *self, { return 0; } +static inline const char ** +find_next_mod_format(int start_index, void *v, const char **fmt, loff_t *pos) +{ + return NULL; +} +static inline void format_mod_start(void) { } +static inline void format_mod_stop(void) { } #endif /* CONFIG_MODULES */ @@ -153,20 +235,33 @@ int __ftrace_vprintk(unsigned long ip, const char *fmt, va_list ap) } EXPORT_SYMBOL_GPL(__ftrace_vprintk); +static const char **find_next(void *v, loff_t *pos) +{ + const char **fmt = v; + int start_index; + + if (!fmt) + fmt = __start___trace_bprintk_fmt + *pos; + + start_index = __stop___trace_bprintk_fmt - __start___trace_bprintk_fmt; + + if (*pos < start_index) + return fmt; + + return find_next_mod_format(start_index, v, fmt, pos); +} + static void * t_start(struct seq_file *m, loff_t *pos) { - const char **fmt = __start___trace_bprintk_fmt + *pos; - - if ((unsigned long)fmt >= (unsigned long)__stop___trace_bprintk_fmt) - return NULL; - return fmt; + format_mod_start(); + return find_next(NULL, pos); } static void *t_next(struct seq_file *m, void * v, loff_t *pos) { (*pos)++; - return t_start(m, pos); + return find_next(v, pos); } static int t_show(struct seq_file *m, void *v) @@ -205,6 +300,7 @@ static int t_show(struct seq_file *m, void *v) static void t_stop(struct seq_file *m, void *p) { + format_mod_stop(); } static const struct seq_operations show_format_seq_ops = { diff --git a/kernel/tracepoint.c b/kernel/tracepoint.c index 68187af4889e..b219f1449c54 100644 --- a/kernel/tracepoint.c +++ b/kernel/tracepoint.c @@ -251,9 +251,9 @@ static void set_tracepoint(struct tracepoint_entry **entry, { WARN_ON(strcmp((*entry)->name, elem->name) != 0); - if (elem->regfunc && !elem->state && active) + if (elem->regfunc && !jump_label_enabled(&elem->key) && active) elem->regfunc(); - else if (elem->unregfunc && elem->state && !active) + else if (elem->unregfunc && jump_label_enabled(&elem->key) && !active) elem->unregfunc(); /* @@ -264,13 +264,10 @@ static void set_tracepoint(struct tracepoint_entry **entry, * is used. */ rcu_assign_pointer(elem->funcs, (*entry)->funcs); - if (!elem->state && active) { - jump_label_enable(&elem->state); - elem->state = active; - } else if (elem->state && !active) { - jump_label_disable(&elem->state); - elem->state = active; - } + if (active && !jump_label_enabled(&elem->key)) + jump_label_inc(&elem->key); + else if (!active && jump_label_enabled(&elem->key)) + jump_label_dec(&elem->key); } /* @@ -281,13 +278,11 @@ static void set_tracepoint(struct tracepoint_entry **entry, */ static void disable_tracepoint(struct tracepoint *elem) { - if (elem->unregfunc && elem->state) + if (elem->unregfunc && jump_label_enabled(&elem->key)) elem->unregfunc(); - if (elem->state) { - jump_label_disable(&elem->state); - elem->state = 0; - } + if (jump_label_enabled(&elem->key)) + jump_label_dec(&elem->key); rcu_assign_pointer(elem->funcs, NULL); } diff --git a/tools/perf/Documentation/perf-script.txt b/tools/perf/Documentation/perf-script.txt index 66f040b30729..86c87e214b11 100644 --- a/tools/perf/Documentation/perf-script.txt +++ b/tools/perf/Documentation/perf-script.txt @@ -113,13 +113,61 @@ OPTIONS Do various checks like samples ordering and lost events. -f:: ---fields +--fields:: Comma separated list of fields to print. Options are: comm, tid, pid, time, cpu, event, trace, sym. Field - list must be prepended with the type, trace, sw or hw, + list can be prepended with the type, trace, sw or hw, to indicate to which event type the field list applies. e.g., -f sw:comm,tid,time,sym and -f trace:time,cpu,trace + perf script -f <fields> + + is equivalent to: + + perf script -f trace:<fields> -f sw:<fields> -f hw:<fields> + + i.e., the specified fields apply to all event types if the type string + is not given. + + The arguments are processed in the order received. A later usage can + reset a prior request. e.g.: + + -f trace: -f comm,tid,time,sym + + The first -f suppresses trace events (field list is ""), but then the + second invocation sets the fields to comm,tid,time,sym. In this case a + warning is given to the user: + + "Overriding previous field request for all events." + + Alternativey, consider the order: + + -f comm,tid,time,sym -f trace: + + The first -f sets the fields for all events and the second -f + suppresses trace events. The user is given a warning message about + the override, and the result of the above is that only S/W and H/W + events are displayed with the given fields. + + For the 'wildcard' option if a user selected field is invalid for an + event type, a message is displayed to the user that the option is + ignored for that type. For example: + + $ perf script -f comm,tid,trace + 'trace' not valid for hardware events. Ignoring. + 'trace' not valid for software events. Ignoring. + + Alternatively, if the type is given an invalid field is specified it + is an error. For example: + + perf script -v -f sw:comm,tid,trace + 'trace' not valid for software events. + + At this point usage is displayed, and perf-script exits. + + Finally, a user may not set fields to none for all event types. + i.e., -f "" is not allowed. + -k:: --vmlinux=<file>:: vmlinux pathname diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 207dee5c5b16..91ad5cc95d85 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -5,6 +5,8 @@ endif # The default target of this Makefile is... all: +include config/utilities.mak + ifneq ($(OUTPUT),) # check that the output directory actually exists OUTDIR := $(shell cd $(OUTPUT) && /bin/pwd) @@ -13,6 +15,12 @@ endif # Define V to have a more verbose compile. # +# Define PYTHON to point to the python binary if the default +# `python' is not correct; for example: PYTHON=python2 +# +# Define PYTHON_CONFIG to point to the python-config binary if +# the default `$(PYTHON)-config' is not correct. +# # Define ASCIIDOC8 if you want to format documentation with AsciiDoc 8 # # Define DOCBOOK_XSL_172 if you want to format man pages with DocBook XSL v1.72. @@ -130,7 +138,7 @@ INSTALL = install # explicitly what architecture to check for. Fix this up for yours.. SPARSE_FLAGS = -D__BIG_ENDIAN__ -D__powerpc__ --include feature-tests.mak +-include config/feature-tests.mak ifeq ($(call try-cc,$(SOURCE_HELLO),-Werror -fstack-protector-all),y) CFLAGS := $(CFLAGS) -fstack-protector-all @@ -165,12 +173,10 @@ grep-libs = $(filter -l%,$(1)) strip-libs = $(filter-out -l%,$(1)) $(OUTPUT)python/perf.so: $(PYRF_OBJS) - $(QUIET_GEN)( \ - export CFLAGS="$(BASIC_CFLAGS)"; \ - python util/setup.py --quiet build_ext --build-lib='$(OUTPUT)python' \ - --build-temp='$(OUTPUT)python/temp' \ - ) - + $(QUIET_GEN)CFLAGS='$(BASIC_CFLAGS)' $(PYTHON_WORD) util/setup.py \ + --quiet build_ext \ + --build-lib='$(OUTPUT)python' \ + --build-temp='$(OUTPUT)python/temp' # # No Perl scripts right now: # @@ -475,24 +481,74 @@ else endif endif -ifdef NO_LIBPYTHON - BASIC_CFLAGS += -DNO_LIBPYTHON +disable-python = $(eval $(disable-python_code)) +define disable-python_code + BASIC_CFLAGS += -DNO_LIBPYTHON + $(if $(1),$(warning No $(1) was found)) + $(warning Python support won't be built) +endef + +override PYTHON := \ + $(call get-executable-or-default,PYTHON,python) + +ifndef PYTHON + $(call disable-python,python interpreter) + python-clean := else - PYTHON_EMBED_LDOPTS = $(shell python-config --ldflags 2>/dev/null) - PYTHON_EMBED_LDFLAGS = $(call strip-libs,$(PYTHON_EMBED_LDOPTS)) - PYTHON_EMBED_LIBADD = $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) - PYTHON_EMBED_CCOPTS = `python-config --cflags 2>/dev/null` - FLAGS_PYTHON_EMBED=$(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS) - ifneq ($(call try-cc,$(SOURCE_PYTHON_EMBED),$(FLAGS_PYTHON_EMBED)),y) - msg := $(warning No Python.h found, install python-dev[el] to have python support in 'perf script' and to build the python bindings) - BASIC_CFLAGS += -DNO_LIBPYTHON - else - ALL_LDFLAGS += $(PYTHON_EMBED_LDFLAGS) - EXTLIBS += $(PYTHON_EMBED_LIBADD) - LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o - LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o - LANG_BINDINGS += $(OUTPUT)python/perf.so - endif + + PYTHON_WORD := $(call shell-wordify,$(PYTHON)) + + python-clean := $(PYTHON_WORD) util/setup.py clean \ + --build-lib='$(OUTPUT)python' \ + --build-temp='$(OUTPUT)python/temp' + + ifdef NO_LIBPYTHON + $(call disable-python) + else + + override PYTHON_CONFIG := \ + $(call get-executable-or-default,PYTHON_CONFIG,$(PYTHON)-config) + + ifndef PYTHON_CONFIG + $(call disable-python,python-config tool) + else + + PYTHON_CONFIG_SQ := $(call shell-sq,$(PYTHON_CONFIG)) + + PYTHON_EMBED_LDOPTS := $(shell $(PYTHON_CONFIG_SQ) --ldflags 2>/dev/null) + PYTHON_EMBED_LDFLAGS := $(call strip-libs,$(PYTHON_EMBED_LDOPTS)) + PYTHON_EMBED_LIBADD := $(call grep-libs,$(PYTHON_EMBED_LDOPTS)) + PYTHON_EMBED_CCOPTS := $(shell $(PYTHON_CONFIG_SQ) --cflags 2>/dev/null) + FLAGS_PYTHON_EMBED := $(PYTHON_EMBED_CCOPTS) $(PYTHON_EMBED_LDOPTS) + + ifneq ($(call try-cc,$(SOURCE_PYTHON_EMBED),$(FLAGS_PYTHON_EMBED)),y) + $(call disable-python,Python.h (for Python 2.x)) + else + + ifneq ($(call try-cc,$(SOURCE_PYTHON_VERSION),$(FLAGS_PYTHON_EMBED)),y) + $(warning Python 3 is not yet supported; please set) + $(warning PYTHON and/or PYTHON_CONFIG appropriately.) + $(warning If you also have Python 2 installed, then) + $(warning try something like:) + $(warning $(and ,)) + $(warning $(and ,) make PYTHON=python2) + $(warning $(and ,)) + $(warning Otherwise, disable Python support entirely:) + $(warning $(and ,)) + $(warning $(and ,) make NO_LIBPYTHON=1) + $(warning $(and ,)) + $(error $(and ,)) + else + ALL_LDFLAGS += $(PYTHON_EMBED_LDFLAGS) + EXTLIBS += $(PYTHON_EMBED_LIBADD) + LIB_OBJS += $(OUTPUT)util/scripting-engines/trace-event-python.o + LIB_OBJS += $(OUTPUT)scripts/python/Perf-Trace-Util/Context.o + LANG_BINDINGS += $(OUTPUT)python/perf.so + endif + + endif + endif + endif endif ifdef NO_DEMANGLE @@ -833,8 +889,7 @@ clean: $(RM) *.spec *.pyc *.pyo */*.pyc */*.pyo $(OUTPUT)common-cmds.h TAGS tags cscope* $(MAKE) -C Documentation/ clean $(RM) $(OUTPUT)PERF-VERSION-FILE $(OUTPUT)PERF-CFLAGS - @python util/setup.py clean --build-lib='$(OUTPUT)python' \ - --build-temp='$(OUTPUT)python/temp' + $(python-clean) .PHONY: all install clean strip .PHONY: shell_compatibility_test please_set_SHELL_PATH_to_a_more_modern_shell diff --git a/tools/perf/builtin-script.c b/tools/perf/builtin-script.c index ac574ea23917..974f6d3f4e53 100644 --- a/tools/perf/builtin-script.c +++ b/tools/perf/builtin-script.c @@ -49,57 +49,169 @@ struct output_option { }; /* default set to maintain compatibility with current format */ -static u64 output_fields[PERF_TYPE_MAX] = { - [PERF_TYPE_HARDWARE] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \ - PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \ - PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, - - [PERF_TYPE_SOFTWARE] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \ - PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \ - PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, - - [PERF_TYPE_TRACEPOINT] = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | \ - PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | \ - PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE, +static struct { + bool user_set; + bool wildcard_set; + u64 fields; + u64 invalid_fields; +} output[PERF_TYPE_MAX] = { + + [PERF_TYPE_HARDWARE] = { + .user_set = false, + + .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | + PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, + + .invalid_fields = PERF_OUTPUT_TRACE, + }, + + [PERF_TYPE_SOFTWARE] = { + .user_set = false, + + .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | + PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, + + .invalid_fields = PERF_OUTPUT_TRACE, + }, + + [PERF_TYPE_TRACEPOINT] = { + .user_set = false, + + .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | + PERF_OUTPUT_EVNAME | PERF_OUTPUT_TRACE, + }, + + [PERF_TYPE_RAW] = { + .user_set = false, + + .fields = PERF_OUTPUT_COMM | PERF_OUTPUT_TID | + PERF_OUTPUT_CPU | PERF_OUTPUT_TIME | + PERF_OUTPUT_EVNAME | PERF_OUTPUT_SYM, + + .invalid_fields = PERF_OUTPUT_TRACE, + }, }; -static bool output_set_by_user; +static bool output_set_by_user(void) +{ + int j; + for (j = 0; j < PERF_TYPE_MAX; ++j) { + if (output[j].user_set) + return true; + } + return false; +} + +static const char *output_field2str(enum perf_output_field field) +{ + int i, imax = ARRAY_SIZE(all_output_options); + const char *str = ""; + + for (i = 0; i < imax; ++i) { + if (all_output_options[i].field == field) { + str = all_output_options[i].str; + break; + } + } + return str; +} -#define PRINT_FIELD(x) (output_fields[attr->type] & PERF_OUTPUT_##x) +#define PRINT_FIELD(x) (output[attr->type].fields & PERF_OUTPUT_##x) -static int perf_session__check_attr(struct perf_session *session, - struct perf_event_attr *attr) +static int perf_event_attr__check_stype(struct perf_event_attr *attr, + u64 sample_type, const char *sample_msg, + enum perf_output_field field) { + int type = attr->type; + const char *evname; + + if (attr->sample_type & sample_type) + return 0; + + if (output[type].user_set) { + evname = __event_name(attr->type, attr->config); + pr_err("Samples for '%s' event do not have %s attribute set. " + "Cannot print '%s' field.\n", + evname, sample_msg, output_field2str(field)); + return -1; + } + + /* user did not ask for it explicitly so remove from the default list */ + output[type].fields &= ~field; + evname = __event_name(attr->type, attr->config); + pr_debug("Samples for '%s' event do not have %s attribute set. " + "Skipping '%s' field.\n", + evname, sample_msg, output_field2str(field)); + + return 0; +} + +static int perf_evsel__check_attr(struct perf_evsel *evsel, + struct perf_session *session) +{ + struct perf_event_attr *attr = &evsel->attr; + if (PRINT_FIELD(TRACE) && !perf_session__has_traces(session, "record -R")) return -EINVAL; if (PRINT_FIELD(SYM)) { - if (!(session->sample_type & PERF_SAMPLE_IP)) { - pr_err("Samples do not contain IP data.\n"); + if (perf_event_attr__check_stype(attr, PERF_SAMPLE_IP, "IP", + PERF_OUTPUT_SYM)) return -EINVAL; - } + if (!no_callchain && - !(session->sample_type & PERF_SAMPLE_CALLCHAIN)) + !(attr->sample_type & PERF_SAMPLE_CALLCHAIN)) symbol_conf.use_callchain = false; } if ((PRINT_FIELD(PID) || PRINT_FIELD(TID)) && - !(session->sample_type & PERF_SAMPLE_TID)) { - pr_err("Samples do not contain TID/PID data.\n"); + perf_event_attr__check_stype(attr, PERF_SAMPLE_TID, "TID", + PERF_OUTPUT_TID|PERF_OUTPUT_PID)) return -EINVAL; - } if (PRINT_FIELD(TIME) && - !(session->sample_type & PERF_SAMPLE_TIME)) { - pr_err("Samples do not contain timestamps.\n"); + perf_event_attr__check_stype(attr, PERF_SAMPLE_TIME, "TIME", + PERF_OUTPUT_TIME)) return -EINVAL; - } if (PRINT_FIELD(CPU) && - !(session->sample_type & PERF_SAMPLE_CPU)) { - pr_err("Samples do not contain cpu.\n"); + perf_event_attr__check_stype(attr, PERF_SAMPLE_CPU, "CPU", + PERF_OUTPUT_CPU)) return -EINVAL; + + return 0; +} + +/* + * verify all user requested events exist and the samples + * have the expected data + */ +static int perf_session__check_output_opt(struct perf_session *session) +{ + int j; + struct perf_evsel *evsel; + + for (j = 0; j < PERF_TYPE_MAX; ++j) { + evsel = perf_session__find_first_evtype(session, j); + + /* + * even if fields is set to 0 (ie., show nothing) event must + * exist if user explicitly includes it on the command line + */ + if (!evsel && output[j].user_set && !output[j].wildcard_set) { + pr_err("%s events do not exist. " + "Remove corresponding -f option to proceed.\n", + event_type(j)); + return -1; + } + + if (evsel && output[j].fields && + perf_evsel__check_attr(evsel, session)) + return -1; } return 0; @@ -168,10 +280,7 @@ static void process_event(union perf_event *event __unused, { struct perf_event_attr *attr = &evsel->attr; - if (output_fields[attr->type] == 0) - return; - - if (perf_session__check_attr(session, attr) < 0) + if (output[attr->type].fields == 0) return; print_sample_start(sample, thread, attr); @@ -451,6 +560,7 @@ static int parse_output_fields(const struct option *opt __used, { char *tok; int i, imax = sizeof(all_output_options) / sizeof(struct output_option); + int j; int rc = 0; char *str = strdup(arg); int type = -1; @@ -458,52 +568,99 @@ static int parse_output_fields(const struct option *opt __used, if (!str) return -ENOMEM; - tok = strtok(str, ":"); - if (!tok) { - fprintf(stderr, - "Invalid field string - not prepended with type."); - return -EINVAL; - } - - /* first word should state which event type user - * is specifying the fields + /* first word can state for which event type the user is specifying + * the fields. If no type exists, the specified fields apply to all + * event types found in the file minus the invalid fields for a type. */ - if (!strcmp(tok, "hw")) - type = PERF_TYPE_HARDWARE; - else if (!strcmp(tok, "sw")) - type = PERF_TYPE_SOFTWARE; - else if (!strcmp(tok, "trace")) - type = PERF_TYPE_TRACEPOINT; - else { - fprintf(stderr, "Invalid event type in field string."); - return -EINVAL; + tok = strchr(str, ':'); + if (tok) { + *tok = '\0'; + tok++; + if (!strcmp(str, "hw")) + type = PERF_TYPE_HARDWARE; + else if (!strcmp(str, "sw")) + type = PERF_TYPE_SOFTWARE; + else if (!strcmp(str, "trace")) + type = PERF_TYPE_TRACEPOINT; + else if (!strcmp(str, "raw")) + type = PERF_TYPE_RAW; + else { + fprintf(stderr, "Invalid event type in field string.\n"); + return -EINVAL; + } + + if (output[type].user_set) + pr_warning("Overriding previous field request for %s events.\n", + event_type(type)); + + output[type].fields = 0; + output[type].user_set = true; + output[type].wildcard_set = false; + + } else { + tok = str; + if (strlen(str) == 0) { + fprintf(stderr, + "Cannot set fields to 'none' for all event types.\n"); + rc = -EINVAL; + goto out; + } + + if (output_set_by_user()) + pr_warning("Overriding previous field request for all events.\n"); + + for (j = 0; j < PERF_TYPE_MAX; ++j) { + output[j].fields = 0; + output[j].user_set = true; + output[j].wildcard_set = true; + } } - output_fields[type] = 0; - while (1) { - tok = strtok(NULL, ","); - if (!tok) - break; + tok = strtok(tok, ","); + while (tok) { for (i = 0; i < imax; ++i) { - if (strcmp(tok, all_output_options[i].str) == 0) { - output_fields[type] |= all_output_options[i].field; + if (strcmp(tok, all_output_options[i].str) == 0) break; - } } if (i == imax) { - fprintf(stderr, "Invalid field requested."); + fprintf(stderr, "Invalid field requested.\n"); rc = -EINVAL; - break; + goto out; } - } - if (output_fields[type] == 0) { - pr_debug("No fields requested for %s type. " - "Events will not be displayed\n", event_type(type)); + if (type == -1) { + /* add user option to all events types for + * which it is valid + */ + for (j = 0; j < PERF_TYPE_MAX; ++j) { + if (output[j].invalid_fields & all_output_options[i].field) { + pr_warning("\'%s\' not valid for %s events. Ignoring.\n", + all_output_options[i].str, event_type(j)); + } else + output[j].fields |= all_output_options[i].field; + } + } else { + if (output[type].invalid_fields & all_output_options[i].field) { + fprintf(stderr, "\'%s\' not valid for %s events.\n", + all_output_options[i].str, event_type(type)); + + rc = -EINVAL; + goto out; + } + output[type].fields |= all_output_options[i].field; + } + + tok = strtok(NULL, ","); } - output_set_by_user = true; + if (type >= 0) { + if (output[type].fields == 0) { + pr_debug("No fields requested for %s type. " + "Events will not be displayed.\n", event_type(type)); + } + } +out: free(str); return rc; } @@ -829,7 +986,7 @@ static const struct option options[] = { OPT_STRING(0, "symfs", &symbol_conf.symfs, "directory", "Look for files with symbols relative to this directory"), OPT_CALLBACK('f', "fields", NULL, "str", - "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace. Fields: comm,tid,pid,time,cpu,event,trace,sym", + "comma separated output fields prepend with 'type:'. Valid types: hw,sw,trace,raw. Fields: comm,tid,pid,time,cpu,event,trace,sym", parse_output_fields), OPT_END() @@ -1020,7 +1177,7 @@ int cmd_script(int argc, const char **argv, const char *prefix __used) struct stat perf_stat; int input; - if (output_set_by_user) { + if (output_set_by_user()) { fprintf(stderr, "custom fields not supported for generated scripts"); return -1; @@ -1060,6 +1217,11 @@ int cmd_script(int argc, const char **argv, const char *prefix __used) pr_debug("perf script started with script %s\n\n", script_name); } + + err = perf_session__check_output_opt(session); + if (err < 0) + goto out; + err = __cmd_script(session); perf_session__delete(session); diff --git a/tools/perf/feature-tests.mak b/tools/perf/config/feature-tests.mak index b041ca67a2cb..6170fd2531b5 100644 --- a/tools/perf/feature-tests.mak +++ b/tools/perf/config/feature-tests.mak @@ -79,9 +79,15 @@ endef endif ifndef NO_LIBPYTHON +define SOURCE_PYTHON_VERSION +#include <Python.h> +#if PY_VERSION_HEX >= 0x03000000 + #error +#endif +int main(void){} +endef define SOURCE_PYTHON_EMBED #include <Python.h> - int main(void) { Py_Initialize(); @@ -120,11 +126,3 @@ int main(void) return 0; } endef - -# try-cc -# Usage: option = $(call try-cc, source-to-build, cc-options) -try-cc = $(shell sh -c \ - 'TMP="$(OUTPUT)$(TMPOUT).$$$$"; \ - echo "$(1)" | \ - $(CC) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y; \ - rm -f "$$TMP"') diff --git a/tools/perf/config/utilities.mak b/tools/perf/config/utilities.mak new file mode 100644 index 000000000000..8046182a19eb --- /dev/null +++ b/tools/perf/config/utilities.mak @@ -0,0 +1,188 @@ +# This allows us to work with the newline character: +define newline + + +endef +newline := $(newline) + +# nl-escape +# +# Usage: escape = $(call nl-escape[,escape]) +# +# This is used as the common way to specify +# what should replace a newline when escaping +# newlines; the default is a bizarre string. +# +nl-escape = $(or $(1),m822df3020w6a44id34bt574ctac44eb9f4n) + +# escape-nl +# +# Usage: escaped-text = $(call escape-nl,text[,escape]) +# +# GNU make's $(shell ...) function converts to a +# single space each newline character in the output +# produced during the expansion; this may not be +# desirable. +# +# The only solution is to change each newline into +# something that won't be converted, so that the +# information can be recovered later with +# $(call unescape-nl...) +# +escape-nl = $(subst $(newline),$(call nl-escape,$(2)),$(1)) + +# unescape-nl +# +# Usage: text = $(call unescape-nl,escaped-text[,escape]) +# +# See escape-nl. +# +unescape-nl = $(subst $(call nl-escape,$(2)),$(newline),$(1)) + +# shell-escape-nl +# +# Usage: $(shell some-command | $(call shell-escape-nl[,escape])) +# +# Use this to escape newlines from within a shell call; +# the default escape is a bizarre string. +# +# NOTE: The escape is used directly as a string constant +# in an `awk' program that is delimited by shell +# single-quotes, so be wary of the characters +# that are chosen. +# +define shell-escape-nl +awk 'NR==1 {t=$$0} NR>1 {t=t "$(nl-escape)" $$0} END {printf t}' +endef + +# shell-unescape-nl +# +# Usage: $(shell some-command | $(call shell-unescape-nl[,escape])) +# +# Use this to unescape newlines from within a shell call; +# the default escape is a bizarre string. +# +# NOTE: The escape is used directly as an extended regular +# expression constant in an `awk' program that is +# delimited by shell single-quotes, so be wary +# of the characters that are chosen. +# +# (The bash shell has a bug where `{gsub(...),...}' is +# misinterpreted as a brace expansion; this can be +# overcome by putting a space between `{' and `gsub'). +# +define shell-unescape-nl +awk 'NR==1 {t=$$0} NR>1 {t=t "\n" $$0} END { gsub(/$(nl-escape)/,"\n",t); printf t }' +endef + +# escape-for-shell-sq +# +# Usage: embeddable-text = $(call escape-for-shell-sq,text) +# +# This function produces text that is suitable for +# embedding in a shell string that is delimited by +# single-quotes. +# +escape-for-shell-sq = $(subst ','\'',$(1)) + +# shell-sq +# +# Usage: single-quoted-and-escaped-text = $(call shell-sq,text) +# +shell-sq = '$(escape-for-shell-sq)' + +# shell-wordify +# +# Usage: wordified-text = $(call shell-wordify,text) +# +# For instance: +# +# |define text +# |hello +# |world +# |endef +# | +# |target: +# | echo $(call shell-wordify,$(text)) +# +# At least GNU make gets confused by expanding a newline +# within the context of a command line of a makefile rule +# (this is in constrast to a `$(shell ...)' function call, +# which can handle it just fine). +# +# This function avoids the problem by producing a string +# that works as a shell word, regardless of whether or +# not it contains a newline. +# +# If the text to be wordified contains a newline, then +# an intrictate shell command substitution is constructed +# to render the text as a single line; when the shell +# processes the resulting escaped text, it transforms +# it into the original unescaped text. +# +# If the text does not contain a newline, then this function +# produces the same results as the `$(shell-sq)' function. +# +shell-wordify = $(if $(findstring $(newline),$(1)),$(_sw-esc-nl),$(shell-sq)) +define _sw-esc-nl +"$$(echo $(call escape-nl,$(shell-sq),$(2)) | $(call shell-unescape-nl,$(2)))" +endef + +# is-absolute +# +# Usage: bool-value = $(call is-absolute,path) +# +is-absolute = $(shell echo $(shell-sq) | grep ^/ -q && echo y) + +# lookup +# +# Usage: absolute-executable-path-or-empty = $(call lookup,path) +# +# (It's necessary to use `sh -c' because GNU make messes up by +# trying too hard and getting things wrong). +# +lookup = $(call unescape-nl,$(shell sh -c $(_l-sh))) +_l-sh = $(call shell-sq,command -v $(shell-sq) | $(call shell-escape-nl,)) + +# is-executable +# +# Usage: bool-value = $(call is-executable,path) +# +# (It's necessary to use `sh -c' because GNU make messes up by +# trying too hard and getting things wrong). +# +is-executable = $(call _is-executable-helper,$(shell-sq)) +_is-executable-helper = $(shell sh -c $(_is-executable-sh)) +_is-executable-sh = $(call shell-sq,test -f $(1) -a -x $(1) && echo y) + +# get-executable +# +# Usage: absolute-executable-path-or-empty = $(call get-executable,path) +# +# The goal is to get an absolute path for an executable; +# the `command -v' is defined by POSIX, but it's not +# necessarily very portable, so it's only used if +# relative path resolution is requested, as determined +# by the presence of a leading `/'. +# +get-executable = $(if $(1),$(if $(is-absolute),$(_ge-abspath),$(lookup))) +_ge-abspath = $(if $(is-executable),$(1)) + +# get-supplied-or-default-executable +# +# Usage: absolute-executable-path-or-empty = $(call get-executable-or-default,variable,default) +# +define get-executable-or-default +$(if $($(1)),$(call _ge_attempt,$($(1)),$(1)),$(call _ge_attempt,$(2))) +endef +_ge_attempt = $(or $(get-executable),$(_gea_warn),$(call _gea_err,$(2))) +_gea_warn = $(warning The path '$(1)' is not executable.) +_gea_err = $(if $(1),$(error Please set '$(1)' appropriately)) + +# try-cc +# Usage: option = $(call try-cc, source-to-build, cc-options) +try-cc = $(shell sh -c \ + 'TMP="$(OUTPUT)$(TMPOUT).$$$$"; \ + echo "$(1)" | \ + $(CC) -x c - $(2) -o "$$TMP" > /dev/null 2>&1 && echo y; \ + rm -f "$$TMP"') diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c index b7c85ce466a1..a7c7145a8d4f 100644 --- a/tools/perf/util/probe-finder.c +++ b/tools/perf/util/probe-finder.c @@ -1471,6 +1471,38 @@ static int find_probe_point_by_func(struct probe_finder *pf) return _param.retval; } +struct pubname_callback_param { + char *function; + char *file; + Dwarf_Die *cu_die; + Dwarf_Die *sp_die; + int found; +}; + +static int pubname_search_cb(Dwarf *dbg, Dwarf_Global *gl, void *data) +{ + struct pubname_callback_param *param = data; + + if (dwarf_offdie(dbg, gl->die_offset, param->sp_die)) { + if (dwarf_tag(param->sp_die) != DW_TAG_subprogram) + return DWARF_CB_OK; + + if (die_compare_name(param->sp_die, param->function)) { + if (!dwarf_offdie(dbg, gl->cu_offset, param->cu_die)) + return DWARF_CB_OK; + + if (param->file && + strtailcmp(param->file, dwarf_decl_file(param->sp_die))) + return DWARF_CB_OK; + + param->found = 1; + return DWARF_CB_ABORT; + } + } + + return DWARF_CB_OK; +} + /* Find probe points from debuginfo */ static int find_probes(int fd, struct probe_finder *pf) { @@ -1498,6 +1530,27 @@ static int find_probes(int fd, struct probe_finder *pf) off = 0; line_list__init(&pf->lcache); + + /* Fastpath: lookup by function name from .debug_pubnames section */ + if (pp->function) { + struct pubname_callback_param pubname_param = { + .function = pp->function, + .file = pp->file, + .cu_die = &pf->cu_die, + .sp_die = &pf->sp_die, + }; + struct dwarf_callback_param probe_param = { + .data = pf, + }; + + dwarf_getpubnames(dbg, pubname_search_cb, &pubname_param, 0); + if (pubname_param.found) { + ret = probe_point_search_cb(&pf->sp_die, &probe_param); + if (ret) + goto found; + } + } + /* Loop on CUs (Compilation Unit) */ while (!dwarf_nextcu(dbg, off, &noff, &cuhl, NULL, NULL, NULL)) { /* Get the DIE(Debugging Information Entry) of this CU */ @@ -1525,6 +1578,8 @@ static int find_probes(int fd, struct probe_finder *pf) } off = noff; } + +found: line_list__free(&pf->lcache); if (dwfl) dwfl_end(dwfl); @@ -1946,6 +2001,22 @@ int find_line_range(int fd, struct line_range *lr) return -EBADF; } + /* Fastpath: lookup by function name from .debug_pubnames section */ + if (lr->function) { + struct pubname_callback_param pubname_param = { + .function = lr->function, .file = lr->file, + .cu_die = &lf.cu_die, .sp_die = &lf.sp_die, .found = 0}; + struct dwarf_callback_param line_range_param = { + .data = (void *)&lf, .retval = 0}; + + dwarf_getpubnames(dbg, pubname_search_cb, &pubname_param, 0); + if (pubname_param.found) { + line_range_search_cb(&lf.sp_die, &line_range_param); + if (lf.found) + goto found; + } + } + /* Loop on CUs (Compilation Unit) */ while (!lf.found && ret >= 0) { if (dwarf_nextcu(dbg, off, &noff, &cuhl, NULL, NULL, NULL) != 0) @@ -1974,6 +2045,7 @@ int find_line_range(int fd, struct line_range *lr) off = noff; } +found: /* Store comp_dir */ if (lf.found) { comp_dir = cu_get_comp_dir(&lf.cu_die); diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h index beaefc3c1223..605730a366db 100644 --- a/tools/perf/util/probe-finder.h +++ b/tools/perf/util/probe-finder.h @@ -49,6 +49,7 @@ struct probe_finder { Dwarf_Addr addr; /* Address */ const char *fname; /* Real file name */ Dwarf_Die cu_die; /* Current CU */ + Dwarf_Die sp_die; struct list_head lcache; /* Line cache for lazy match */ /* For variable searching */ @@ -83,6 +84,7 @@ struct line_finder { int lno_s; /* Start line number */ int lno_e; /* End line number */ Dwarf_Die cu_die; /* Current CU */ + Dwarf_Die sp_die; int found; }; diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c index caa224522fea..fff66741f18d 100644 --- a/tools/perf/util/session.c +++ b/tools/perf/util/session.c @@ -1156,6 +1156,18 @@ size_t perf_session__fprintf_nr_events(struct perf_session *session, FILE *fp) return ret; } +struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, + unsigned int type) +{ + struct perf_evsel *pos; + + list_for_each_entry(pos, &session->evlist->entries, node) { + if (pos->attr.type == type) + return pos; + } + return NULL; +} + void perf_session__print_symbols(union perf_event *event, struct perf_sample *sample, struct perf_session *session) diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h index 1ac481fc1100..8daaa2d15396 100644 --- a/tools/perf/util/session.h +++ b/tools/perf/util/session.h @@ -162,6 +162,9 @@ static inline int perf_session__parse_sample(struct perf_session *session, session->sample_id_all, sample); } +struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session, + unsigned int type); + void perf_session__print_symbols(union perf_event *event, struct perf_sample *sample, struct perf_session *session); diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index f06c10f092ba..516876dfbe52 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -31,13 +31,13 @@ #define NT_GNU_BUILD_ID 3 #endif -static bool dso__build_id_equal(const struct dso *self, u8 *build_id); +static bool dso__build_id_equal(const struct dso *dso, u8 *build_id); static int elf_read_build_id(Elf *elf, void *bf, size_t size); static void dsos__add(struct list_head *head, struct dso *dso); static struct map *map__new2(u64 start, struct dso *dso, enum map_type type); -static int dso__load_kernel_sym(struct dso *self, struct map *map, +static int dso__load_kernel_sym(struct dso *dso, struct map *map, symbol_filter_t filter); -static int dso__load_guest_kernel_sym(struct dso *self, struct map *map, +static int dso__load_guest_kernel_sym(struct dso *dso, struct map *map, symbol_filter_t filter); static int vmlinux_path__nr_entries; static char **vmlinux_path; @@ -49,27 +49,27 @@ struct symbol_conf symbol_conf = { .symfs = "", }; -int dso__name_len(const struct dso *self) +int dso__name_len(const struct dso *dso) { if (verbose) - return self->long_name_len; + return dso->long_name_len; - return self->short_name_len; + return dso->short_name_len; } -bool dso__loaded(const struct dso *self, enum map_type type) +bool dso__loaded(const struct dso *dso, enum map_type type) { - return self->loaded & (1 << type); + return dso->loaded & (1 << type); } -bool dso__sorted_by_name(const struct dso *self, enum map_type type) +bool dso__sorted_by_name(const struct dso *dso, enum map_type type) { - return self->sorted_by_name & (1 << type); + return dso->sorted_by_name & (1 << type); } -static void dso__set_sorted_by_name(struct dso *self, enum map_type type) +static void dso__set_sorted_by_name(struct dso *dso, enum map_type type) { - self->sorted_by_name |= (1 << type); + dso->sorted_by_name |= (1 << type); } bool symbol_type__is_a(char symbol_type, enum map_type map_type) @@ -84,9 +84,9 @@ bool symbol_type__is_a(char symbol_type, enum map_type map_type) } } -static void symbols__fixup_end(struct rb_root *self) +static void symbols__fixup_end(struct rb_root *symbols) { - struct rb_node *nd, *prevnd = rb_first(self); + struct rb_node *nd, *prevnd = rb_first(symbols); struct symbol *curr, *prev; if (prevnd == NULL) @@ -107,10 +107,10 @@ static void symbols__fixup_end(struct rb_root *self) curr->end = roundup(curr->start, 4096); } -static void __map_groups__fixup_end(struct map_groups *self, enum map_type type) +static void __map_groups__fixup_end(struct map_groups *mg, enum map_type type) { struct map *prev, *curr; - struct rb_node *nd, *prevnd = rb_first(&self->maps[type]); + struct rb_node *nd, *prevnd = rb_first(&mg->maps[type]); if (prevnd == NULL) return; @@ -130,128 +130,128 @@ static void __map_groups__fixup_end(struct map_groups *self, enum map_type type) curr->end = ~0ULL; } -static void map_groups__fixup_end(struct map_groups *self) +static void map_groups__fixup_end(struct map_groups *mg) { int i; for (i = 0; i < MAP__NR_TYPES; ++i) - __map_groups__fixup_end(self, i); + __map_groups__fixup_end(mg, i); } static struct symbol *symbol__new(u64 start, u64 len, u8 binding, const char *name) { size_t namelen = strlen(name) + 1; - struct symbol *self = calloc(1, (symbol_conf.priv_size + - sizeof(*self) + namelen)); - if (self == NULL) + struct symbol *sym = calloc(1, (symbol_conf.priv_size + + sizeof(*sym) + namelen)); + if (sym == NULL) return NULL; if (symbol_conf.priv_size) - self = ((void *)self) + symbol_conf.priv_size; - - self->start = start; - self->end = len ? start + len - 1 : start; - self->binding = binding; - self->namelen = namelen - 1; + sym = ((void *)sym) + symbol_conf.priv_size; - pr_debug4("%s: %s %#" PRIx64 "-%#" PRIx64 "\n", __func__, name, start, self->end); + sym->start = start; + sym->end = len ? start + len - 1 : start; + sym->binding = binding; + sym->namelen = namelen - 1; - memcpy(self->name, name, namelen); + pr_debug4("%s: %s %#" PRIx64 "-%#" PRIx64 "\n", + __func__, name, start, sym->end); + memcpy(sym->name, name, namelen); - return self; + return sym; } -void symbol__delete(struct symbol *self) +void symbol__delete(struct symbol *sym) { - free(((void *)self) - symbol_conf.priv_size); + free(((void *)sym) - symbol_conf.priv_size); } -static size_t symbol__fprintf(struct symbol *self, FILE *fp) +static size_t symbol__fprintf(struct symbol *sym, FILE *fp) { return fprintf(fp, " %" PRIx64 "-%" PRIx64 " %c %s\n", - self->start, self->end, - self->binding == STB_GLOBAL ? 'g' : - self->binding == STB_LOCAL ? 'l' : 'w', - self->name); + sym->start, sym->end, + sym->binding == STB_GLOBAL ? 'g' : + sym->binding == STB_LOCAL ? 'l' : 'w', + sym->name); } -void dso__set_long_name(struct dso *self, char *name) +void dso__set_long_name(struct dso *dso, char *name) { if (name == NULL) return; - self->long_name = name; - self->long_name_len = strlen(name); + dso->long_name = name; + dso->long_name_len = strlen(name); } -static void dso__set_short_name(struct dso *self, const char *name) +static void dso__set_short_name(struct dso *dso, const char *name) { if (name == NULL) return; - self->short_name = name; - self->short_name_len = strlen(name); + dso->short_name = name; + dso->short_name_len = strlen(name); } -static void dso__set_basename(struct dso *self) +static void dso__set_basename(struct dso *dso) { - dso__set_short_name(self, basename(self->long_name)); + dso__set_short_name(dso, basename(dso->long_name)); } struct dso *dso__new(const char *name) { - struct dso *self = calloc(1, sizeof(*self) + strlen(name) + 1); + struct dso *dso = calloc(1, sizeof(*dso) + strlen(name) + 1); - if (self != NULL) { + if (dso != NULL) { int i; - strcpy(self->name, name); - dso__set_long_name(self, self->name); - dso__set_short_name(self, self->name); + strcpy(dso->name, name); + dso__set_long_name(dso, dso->name); + dso__set_short_name(dso, dso->name); for (i = 0; i < MAP__NR_TYPES; ++i) - self->symbols[i] = self->symbol_names[i] = RB_ROOT; - self->symtab_type = SYMTAB__NOT_FOUND; - self->loaded = 0; - self->sorted_by_name = 0; - self->has_build_id = 0; - self->kernel = DSO_TYPE_USER; - INIT_LIST_HEAD(&self->node); + dso->symbols[i] = dso->symbol_names[i] = RB_ROOT; + dso->symtab_type = SYMTAB__NOT_FOUND; + dso->loaded = 0; + dso->sorted_by_name = 0; + dso->has_build_id = 0; + dso->kernel = DSO_TYPE_USER; + INIT_LIST_HEAD(&dso->node); } - return self; + return dso; } -static void symbols__delete(struct rb_root *self) +static void symbols__delete(struct rb_root *symbols) { struct symbol *pos; - struct rb_node *next = rb_first(self); + struct rb_node *next = rb_first(symbols); while (next) { pos = rb_entry(next, struct symbol, rb_node); next = rb_next(&pos->rb_node); - rb_erase(&pos->rb_node, self); + rb_erase(&pos->rb_node, symbols); symbol__delete(pos); } } -void dso__delete(struct dso *self) +void dso__delete(struct dso *dso) { int i; for (i = 0; i < MAP__NR_TYPES; ++i) - symbols__delete(&self->symbols[i]); - if (self->sname_alloc) - free((char *)self->short_name); - if (self->lname_alloc) - free(self->long_name); - free(self); + symbols__delete(&dso->symbols[i]); + if (dso->sname_alloc) + free((char *)dso->short_name); + if (dso->lname_alloc) + free(dso->long_name); + free(dso); } -void dso__set_build_id(struct dso *self, void *build_id) +void dso__set_build_id(struct dso *dso, void *build_id) { - memcpy(self->build_id, build_id, sizeof(self->build_id)); - self->has_build_id = 1; + memcpy(dso->build_id, build_id, sizeof(dso->build_id)); + dso->has_build_id = 1; } -static void symbols__insert(struct rb_root *self, struct symbol *sym) +static void symbols__insert(struct rb_root *symbols, struct symbol *sym) { - struct rb_node **p = &self->rb_node; + struct rb_node **p = &symbols->rb_node; struct rb_node *parent = NULL; const u64 ip = sym->start; struct symbol *s; @@ -265,17 +265,17 @@ static void symbols__insert(struct rb_root *self, struct symbol *sym) p = &(*p)->rb_right; } rb_link_node(&sym->rb_node, parent, p); - rb_insert_color(&sym->rb_node, self); + rb_insert_color(&sym->rb_node, symbols); } -static struct symbol *symbols__find(struct rb_root *self, u64 ip) +static struct symbol *symbols__find(struct rb_root *symbols, u64 ip) { struct rb_node *n; - if (self == NULL) + if (symbols == NULL) return NULL; - n = self->rb_node; + n = symbols->rb_node; while (n) { struct symbol *s = rb_entry(n, struct symbol, rb_node); @@ -296,9 +296,9 @@ struct symbol_name_rb_node { struct symbol sym; }; -static void symbols__insert_by_name(struct rb_root *self, struct symbol *sym) +static void symbols__insert_by_name(struct rb_root *symbols, struct symbol *sym) { - struct rb_node **p = &self->rb_node; + struct rb_node **p = &symbols->rb_node; struct rb_node *parent = NULL; struct symbol_name_rb_node *symn, *s; @@ -313,27 +313,29 @@ static void symbols__insert_by_name(struct rb_root *self, struct symbol *sym) p = &(*p)->rb_right; } rb_link_node(&symn->rb_node, parent, p); - rb_insert_color(&symn->rb_node, self); + rb_insert_color(&symn->rb_node, symbols); } -static void symbols__sort_by_name(struct rb_root *self, struct rb_root *source) +static void symbols__sort_by_name(struct rb_root *symbols, + struct rb_root *source) { struct rb_node *nd; for (nd = rb_first(source); nd; nd = rb_next(nd)) { struct symbol *pos = rb_entry(nd, struct symbol, rb_node); - symbols__insert_by_name(self, pos); + symbols__insert_by_name(symbols, pos); } } -static struct symbol *symbols__find_by_name(struct rb_root *self, const char *name) +static struct symbol *symbols__find_by_name(struct rb_root *symbols, + const char *name) { struct rb_node *n; - if (self == NULL) + if (symbols == NULL) return NULL; - n = self->rb_node; + n = symbols->rb_node; while (n) { struct symbol_name_rb_node *s; @@ -353,29 +355,29 @@ static struct symbol *symbols__find_by_name(struct rb_root *self, const char *na return NULL; } -struct symbol *dso__find_symbol(struct dso *self, +struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, u64 addr) { - return symbols__find(&self->symbols[type], addr); + return symbols__find(&dso->symbols[type], addr); } -struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type, +struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, const char *name) { - return symbols__find_by_name(&self->symbol_names[type], name); + return symbols__find_by_name(&dso->symbol_names[type], name); } -void dso__sort_by_name(struct dso *self, enum map_type type) +void dso__sort_by_name(struct dso *dso, enum map_type type) { - dso__set_sorted_by_name(self, type); - return symbols__sort_by_name(&self->symbol_names[type], - &self->symbols[type]); + dso__set_sorted_by_name(dso, type); + return symbols__sort_by_name(&dso->symbol_names[type], + &dso->symbols[type]); } -int build_id__sprintf(const u8 *self, int len, char *bf) +int build_id__sprintf(const u8 *build_id, int len, char *bf) { char *bid = bf; - const u8 *raw = self; + const u8 *raw = build_id; int i; for (i = 0; i < len; ++i) { @@ -384,24 +386,25 @@ int build_id__sprintf(const u8 *self, int len, char *bf) bid += 2; } - return raw - self; + return raw - build_id; } -size_t dso__fprintf_buildid(struct dso *self, FILE *fp) +size_t dso__fprintf_buildid(struct dso *dso, FILE *fp) { char sbuild_id[BUILD_ID_SIZE * 2 + 1]; - build_id__sprintf(self->build_id, sizeof(self->build_id), sbuild_id); + build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id); return fprintf(fp, "%s", sbuild_id); } -size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE *fp) +size_t dso__fprintf_symbols_by_name(struct dso *dso, + enum map_type type, FILE *fp) { size_t ret = 0; struct rb_node *nd; struct symbol_name_rb_node *pos; - for (nd = rb_first(&self->symbol_names[type]); nd; nd = rb_next(nd)) { + for (nd = rb_first(&dso->symbol_names[type]); nd; nd = rb_next(nd)) { pos = rb_entry(nd, struct symbol_name_rb_node, rb_node); fprintf(fp, "%s\n", pos->sym.name); } @@ -409,18 +412,18 @@ size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE * return ret; } -size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp) +size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp) { struct rb_node *nd; - size_t ret = fprintf(fp, "dso: %s (", self->short_name); + size_t ret = fprintf(fp, "dso: %s (", dso->short_name); - if (self->short_name != self->long_name) - ret += fprintf(fp, "%s, ", self->long_name); + if (dso->short_name != dso->long_name) + ret += fprintf(fp, "%s, ", dso->long_name); ret += fprintf(fp, "%s, %sloaded, ", map_type__name[type], - self->loaded ? "" : "NOT "); - ret += dso__fprintf_buildid(self, fp); + dso->loaded ? "" : "NOT "); + ret += dso__fprintf_buildid(dso, fp); ret += fprintf(fp, ")\n"); - for (nd = rb_first(&self->symbols[type]); nd; nd = rb_next(nd)) { + for (nd = rb_first(&dso->symbols[type]); nd; nd = rb_next(nd)) { struct symbol *pos = rb_entry(nd, struct symbol, rb_node); ret += symbol__fprintf(pos, fp); } @@ -543,10 +546,10 @@ static int map__process_kallsym_symbol(void *arg, const char *name, * so that we can in the next step set the symbol ->end address and then * call kernel_maps__split_kallsyms. */ -static int dso__load_all_kallsyms(struct dso *self, const char *filename, +static int dso__load_all_kallsyms(struct dso *dso, const char *filename, struct map *map) { - struct process_kallsyms_args args = { .map = map, .dso = self, }; + struct process_kallsyms_args args = { .map = map, .dso = dso, }; return kallsyms__parse(filename, &args, map__process_kallsym_symbol); } @@ -555,7 +558,7 @@ static int dso__load_all_kallsyms(struct dso *self, const char *filename, * kernel range is broken in several maps, named [kernel].N, as we don't have * the original ELF section names vmlinux have. */ -static int dso__split_kallsyms(struct dso *self, struct map *map, +static int dso__split_kallsyms(struct dso *dso, struct map *map, symbol_filter_t filter) { struct map_groups *kmaps = map__kmap(map)->kmaps; @@ -563,7 +566,7 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, struct map *curr_map = map; struct symbol *pos; int count = 0, moved = 0; - struct rb_root *root = &self->symbols[map->type]; + struct rb_root *root = &dso->symbols[map->type]; struct rb_node *next = rb_first(root); int kernel_range = 0; @@ -582,7 +585,7 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, if (strcmp(curr_map->dso->short_name, module)) { if (curr_map != map && - self->kernel == DSO_TYPE_GUEST_KERNEL && + dso->kernel == DSO_TYPE_GUEST_KERNEL && machine__is_default_guest(machine)) { /* * We assume all symbols of a module are @@ -618,14 +621,14 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, pos->end = curr_map->map_ip(curr_map, pos->end); } else if (curr_map != map) { char dso_name[PATH_MAX]; - struct dso *dso; + struct dso *ndso; if (count == 0) { curr_map = map; goto filter_symbol; } - if (self->kernel == DSO_TYPE_GUEST_KERNEL) + if (dso->kernel == DSO_TYPE_GUEST_KERNEL) snprintf(dso_name, sizeof(dso_name), "[guest.kernel].%d", kernel_range++); @@ -634,15 +637,15 @@ static int dso__split_kallsyms(struct dso *self, struct map *map, "[kernel].%d", kernel_range++); - dso = dso__new(dso_name); - if (dso == NULL) + ndso = dso__new(dso_name); + if (ndso == NULL) return -1; - dso->kernel = self->kernel; + ndso->kernel = dso->kernel; - curr_map = map__new2(pos->start, dso, map->type); + curr_map = map__new2(pos->start, ndso, map->type); if (curr_map == NULL) { - dso__delete(dso); + dso__delete(ndso); return -1; } @@ -665,7 +668,7 @@ discard_symbol: rb_erase(&pos->rb_node, root); } if (curr_map != map && - self->kernel == DSO_TYPE_GUEST_KERNEL && + dso->kernel == DSO_TYPE_GUEST_KERNEL && machine__is_default_guest(kmaps->machine)) { dso__set_loaded(curr_map->dso, curr_map->type); } @@ -673,21 +676,21 @@ discard_symbol: rb_erase(&pos->rb_node, root); return count + moved; } -int dso__load_kallsyms(struct dso *self, const char *filename, +int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map, symbol_filter_t filter) { - if (dso__load_all_kallsyms(self, filename, map) < 0) + if (dso__load_all_kallsyms(dso, filename, map) < 0) return -1; - if (self->kernel == DSO_TYPE_GUEST_KERNEL) - self->symtab_type = SYMTAB__GUEST_KALLSYMS; + if (dso->kernel == DSO_TYPE_GUEST_KERNEL) + dso->symtab_type = SYMTAB__GUEST_KALLSYMS; else - self->symtab_type = SYMTAB__KALLSYMS; + dso->symtab_type = SYMTAB__KALLSYMS; - return dso__split_kallsyms(self, map, filter); + return dso__split_kallsyms(dso, map, filter); } -static int dso__load_perf_map(struct dso *self, struct map *map, +static int dso__load_perf_map(struct dso *dso, struct map *map, symbol_filter_t filter) { char *line = NULL; @@ -695,7 +698,7 @@ static int dso__load_perf_map(struct dso *self, struct map *map, FILE *file; int nr_syms = 0; - file = fopen(self->long_name, "r"); + file = fopen(dso->long_name, "r"); if (file == NULL) goto out_failure; @@ -733,7 +736,7 @@ static int dso__load_perf_map(struct dso *self, struct map *map, if (filter && filter(map, sym)) symbol__delete(sym); else { - symbols__insert(&self->symbols[map->type], sym); + symbols__insert(&dso->symbols[map->type], sym); nr_syms++; } } @@ -752,7 +755,7 @@ out_failure: /** * elf_symtab__for_each_symbol - iterate thru all the symbols * - * @self: struct elf_symtab instance to iterate + * @syms: struct elf_symtab instance to iterate * @idx: uint32_t idx * @sym: GElf_Sym iterator */ @@ -852,7 +855,7 @@ static Elf_Scn *elf_section_by_name(Elf *elf, GElf_Ehdr *ep, * And always look at the original dso, not at debuginfo packages, that * have the PLT data stripped out (shdr_rel_plt.sh_type == SHT_NOBITS). */ -static int dso__synthesize_plt_symbols(struct dso *self, struct map *map, +static int dso__synthesize_plt_symbols(struct dso *dso, struct map *map, symbol_filter_t filter) { uint32_t nr_rel_entries, idx; @@ -871,7 +874,7 @@ static int dso__synthesize_plt_symbols(struct dso *self, struct map *map, char name[PATH_MAX]; snprintf(name, sizeof(name), "%s%s", - symbol_conf.symfs, self->long_name); + symbol_conf.symfs, dso->long_name); fd = open(name, O_RDONLY); if (fd < 0) goto out; @@ -947,7 +950,7 @@ static int dso__synthesize_plt_symbols(struct dso *self, struct map *map, if (filter && filter(map, f)) symbol__delete(f); else { - symbols__insert(&self->symbols[map->type], f); + symbols__insert(&dso->symbols[map->type], f); ++nr; } } @@ -969,7 +972,7 @@ static int dso__synthesize_plt_symbols(struct dso *self, struct map *map, if (filter && filter(map, f)) symbol__delete(f); else { - symbols__insert(&self->symbols[map->type], f); + symbols__insert(&dso->symbols[map->type], f); ++nr; } } @@ -985,29 +988,30 @@ out_close: return nr; out: pr_debug("%s: problems reading %s PLT info.\n", - __func__, self->long_name); + __func__, dso->long_name); return 0; } -static bool elf_sym__is_a(GElf_Sym *self, enum map_type type) +static bool elf_sym__is_a(GElf_Sym *sym, enum map_type type) { switch (type) { case MAP__FUNCTION: - return elf_sym__is_function(self); + return elf_sym__is_function(sym); case MAP__VARIABLE: - return elf_sym__is_object(self); + return elf_sym__is_object(sym); default: return false; } } -static bool elf_sec__is_a(GElf_Shdr *self, Elf_Data *secstrs, enum map_type type) +static bool elf_sec__is_a(GElf_Shdr *shdr, Elf_Data *secstrs, + enum map_type type) { switch (type) { case MAP__FUNCTION: - return elf_sec__is_text(self, secstrs); + return elf_sec__is_text(shdr, secstrs); case MAP__VARIABLE: - return elf_sec__is_data(self, secstrs); + return elf_sec__is_data(shdr, secstrs); default: return false; } @@ -1032,13 +1036,13 @@ static size_t elf_addr_to_index(Elf *elf, GElf_Addr addr) return -1; } -static int dso__load_sym(struct dso *self, struct map *map, const char *name, +static int dso__load_sym(struct dso *dso, struct map *map, const char *name, int fd, symbol_filter_t filter, int kmodule, int want_symtab) { - struct kmap *kmap = self->kernel ? map__kmap(map) : NULL; + struct kmap *kmap = dso->kernel ? map__kmap(map) : NULL; struct map *curr_map = map; - struct dso *curr_dso = self; + struct dso *curr_dso = dso; Elf_Data *symstrs, *secstrs; uint32_t nr_syms; int err = -1; @@ -1064,14 +1068,14 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, } /* Always reject images with a mismatched build-id: */ - if (self->has_build_id) { + if (dso->has_build_id) { u8 build_id[BUILD_ID_SIZE]; if (elf_read_build_id(elf, build_id, BUILD_ID_SIZE) != BUILD_ID_SIZE) goto out_elf_end; - if (!dso__build_id_equal(self, build_id)) + if (!dso__build_id_equal(dso, build_id)) goto out_elf_end; } @@ -1112,13 +1116,14 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, nr_syms = shdr.sh_size / shdr.sh_entsize; memset(&sym, 0, sizeof(sym)); - if (self->kernel == DSO_TYPE_USER) { - self->adjust_symbols = (ehdr.e_type == ET_EXEC || + if (dso->kernel == DSO_TYPE_USER) { + dso->adjust_symbols = (ehdr.e_type == ET_EXEC || elf_section_by_name(elf, &ehdr, &shdr, ".gnu.prelink_undo", NULL) != NULL); - } else self->adjust_symbols = 0; - + } else { + dso->adjust_symbols = 0; + } elf_symtab__for_each_symbol(syms, nr_syms, idx, sym) { struct symbol *f; const char *elf_name = elf_sym__name(&sym, symstrs); @@ -1168,22 +1173,22 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, (sym.st_value & 1)) --sym.st_value; - if (self->kernel != DSO_TYPE_USER || kmodule) { + if (dso->kernel != DSO_TYPE_USER || kmodule) { char dso_name[PATH_MAX]; if (strcmp(section_name, (curr_dso->short_name + - self->short_name_len)) == 0) + dso->short_name_len)) == 0) goto new_symbol; if (strcmp(section_name, ".text") == 0) { curr_map = map; - curr_dso = self; + curr_dso = dso; goto new_symbol; } snprintf(dso_name, sizeof(dso_name), - "%s%s", self->short_name, section_name); + "%s%s", dso->short_name, section_name); curr_map = map_groups__find_by_name(kmap->kmaps, map->type, dso_name); if (curr_map == NULL) { @@ -1195,9 +1200,9 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, curr_dso = dso__new(dso_name); if (curr_dso == NULL) goto out_elf_end; - curr_dso->kernel = self->kernel; - curr_dso->long_name = self->long_name; - curr_dso->long_name_len = self->long_name_len; + curr_dso->kernel = dso->kernel; + curr_dso->long_name = dso->long_name; + curr_dso->long_name_len = dso->long_name_len; curr_map = map__new2(start, curr_dso, map->type); if (curr_map == NULL) { @@ -1206,9 +1211,9 @@ static int dso__load_sym(struct dso *self, struct map *map, const char *name, } curr_map->map_ip = identity__map_ip; curr_map->unmap_ip = identity__map_ip; - curr_dso->symtab_type = self->symtab_type; + curr_dso->symtab_type = dso->symtab_type; map_groups__insert(kmap->kmaps, curr_map); - dsos__add(&self->node, curr_dso); + dsos__add(&dso->node, curr_dso); dso__set_loaded(curr_dso, map->type); } else curr_dso = curr_map->dso; @@ -1250,7 +1255,7 @@ new_symbol: * For misannotated, zeroed, ASM function sizes. */ if (nr > 0) { - symbols__fixup_end(&self->symbols[map->type]); + symbols__fixup_end(&dso->symbols[map->type]); if (kmap) { /* * We need to fixup this here too because we create new @@ -1266,9 +1271,9 @@ out_close: return err; } -static bool dso__build_id_equal(const struct dso *self, u8 *build_id) +static bool dso__build_id_equal(const struct dso *dso, u8 *build_id) { - return memcmp(self->build_id, build_id, sizeof(self->build_id)) == 0; + return memcmp(dso->build_id, build_id, sizeof(dso->build_id)) == 0; } bool __dsos__read_build_ids(struct list_head *head, bool with_hits) @@ -1429,7 +1434,7 @@ out: return err; } -char dso__symtab_origin(const struct dso *self) +char dso__symtab_origin(const struct dso *dso) { static const char origin[] = { [SYMTAB__KALLSYMS] = 'k', @@ -1444,12 +1449,12 @@ char dso__symtab_origin(const struct dso *self) [SYMTAB__GUEST_KMODULE] = 'G', }; - if (self == NULL || self->symtab_type == SYMTAB__NOT_FOUND) + if (dso == NULL || dso->symtab_type == SYMTAB__NOT_FOUND) return '!'; - return origin[self->symtab_type]; + return origin[dso->symtab_type]; } -int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) +int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter) { int size = PATH_MAX; char *name; @@ -1459,12 +1464,12 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) const char *root_dir; int want_symtab; - dso__set_loaded(self, map->type); + dso__set_loaded(dso, map->type); - if (self->kernel == DSO_TYPE_KERNEL) - return dso__load_kernel_sym(self, map, filter); - else if (self->kernel == DSO_TYPE_GUEST_KERNEL) - return dso__load_guest_kernel_sym(self, map, filter); + if (dso->kernel == DSO_TYPE_KERNEL) + return dso__load_kernel_sym(dso, map, filter); + else if (dso->kernel == DSO_TYPE_GUEST_KERNEL) + return dso__load_guest_kernel_sym(dso, map, filter); if (map->groups && map->groups->machine) machine = map->groups->machine; @@ -1475,11 +1480,11 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) if (!name) return -1; - self->adjust_symbols = 0; + dso->adjust_symbols = 0; - if (strncmp(self->name, "/tmp/perf-", 10) == 0) { - ret = dso__load_perf_map(self, map, filter); - self->symtab_type = ret > 0 ? SYMTAB__JAVA_JIT : + if (strncmp(dso->name, "/tmp/perf-", 10) == 0) { + ret = dso__load_perf_map(dso, map, filter); + dso->symtab_type = ret > 0 ? SYMTAB__JAVA_JIT : SYMTAB__NOT_FOUND; return ret; } @@ -1490,33 +1495,33 @@ int dso__load(struct dso *self, struct map *map, symbol_filter_t filter) */ want_symtab = 1; restart: - for (self->symtab_type = SYMTAB__BUILD_ID_CACHE; - self->symtab_type != SYMTAB__NOT_FOUND; - self->symtab_type++) { - switch (self->symtab_type) { + for (dso->symtab_type = SYMTAB__BUILD_ID_CACHE; + dso->symtab_type != SYMTAB__NOT_FOUND; + dso->symtab_type++) { + switch (dso->symtab_type) { case SYMTAB__BUILD_ID_CACHE: /* skip the locally configured cache if a symfs is given */ if (symbol_conf.symfs[0] || - (dso__build_id_filename(self, name, size) == NULL)) { + (dso__build_id_filename(dso, name, size) == NULL)) { continue; } break; case SYMTAB__FEDORA_DEBUGINFO: snprintf(name, size, "%s/usr/lib/debug%s.debug", - symbol_conf.symfs, self->long_name); + symbol_conf.symfs, dso->long_name); break; case SYMTAB__UBUNTU_DEBUGINFO: snprintf(name, size, "%s/usr/lib/debug%s", - symbol_conf.symfs, self->long_name); + symbol_conf.symfs, dso->long_name); break; case SYMTAB__BUILDID_DEBUGINFO: { char build_id_hex[BUILD_ID_SIZE * 2 + 1]; - if (!self->has_build_id) + if (!dso->has_build_id) continue; - build_id__sprintf(self->build_id, - sizeof(self->build_id), + build_id__sprintf(dso->build_id, + sizeof(dso->build_id), build_id_hex); snprintf(name, size, "%s/usr/lib/debug/.build-id/%.2s/%s.debug", @@ -1525,7 +1530,7 @@ restart: break; case SYMTAB__SYSTEM_PATH_DSO: snprintf(name, size, "%s%s", - symbol_conf.symfs, self->long_name); + symbol_conf.symfs, dso->long_name); break; case SYMTAB__GUEST_KMODULE: if (map->groups && machine) @@ -1533,12 +1538,12 @@ restart: else root_dir = ""; snprintf(name, size, "%s%s%s", symbol_conf.symfs, - root_dir, self->long_name); + root_dir, dso->long_name); break; case SYMTAB__SYSTEM_PATH_KMODULE: snprintf(name, size, "%s%s", symbol_conf.symfs, - self->long_name); + dso->long_name); break; default:; } @@ -1548,7 +1553,7 @@ restart: if (fd < 0) continue; - ret = dso__load_sym(self, map, name, fd, filter, 0, + ret = dso__load_sym(dso, map, name, fd, filter, 0, want_symtab); close(fd); @@ -1560,7 +1565,8 @@ restart: continue; if (ret > 0) { - int nr_plt = dso__synthesize_plt_symbols(self, map, filter); + int nr_plt = dso__synthesize_plt_symbols(dso, map, + filter); if (nr_plt > 0) ret += nr_plt; break; @@ -1577,17 +1583,17 @@ restart: } free(name); - if (ret < 0 && strstr(self->name, " (deleted)") != NULL) + if (ret < 0 && strstr(dso->name, " (deleted)") != NULL) return 0; return ret; } -struct map *map_groups__find_by_name(struct map_groups *self, +struct map *map_groups__find_by_name(struct map_groups *mg, enum map_type type, const char *name) { struct rb_node *nd; - for (nd = rb_first(&self->maps[type]); nd; nd = rb_next(nd)) { + for (nd = rb_first(&mg->maps[type]); nd; nd = rb_next(nd)) { struct map *map = rb_entry(nd, struct map, rb_node); if (map->dso && strcmp(map->dso->short_name, name) == 0) @@ -1597,28 +1603,28 @@ struct map *map_groups__find_by_name(struct map_groups *self, return NULL; } -static int dso__kernel_module_get_build_id(struct dso *self, - const char *root_dir) +static int dso__kernel_module_get_build_id(struct dso *dso, + const char *root_dir) { char filename[PATH_MAX]; /* * kernel module short names are of the form "[module]" and * we need just "module" here. */ - const char *name = self->short_name + 1; + const char *name = dso->short_name + 1; snprintf(filename, sizeof(filename), "%s/sys/module/%.*s/notes/.note.gnu.build-id", root_dir, (int)strlen(name) - 1, name); - if (sysfs__read_build_id(filename, self->build_id, - sizeof(self->build_id)) == 0) - self->has_build_id = true; + if (sysfs__read_build_id(filename, dso->build_id, + sizeof(dso->build_id)) == 0) + dso->has_build_id = true; return 0; } -static int map_groups__set_modules_path_dir(struct map_groups *self, +static int map_groups__set_modules_path_dir(struct map_groups *mg, const char *dir_name) { struct dirent *dent; @@ -1646,7 +1652,7 @@ static int map_groups__set_modules_path_dir(struct map_groups *self, snprintf(path, sizeof(path), "%s/%s", dir_name, dent->d_name); - ret = map_groups__set_modules_path_dir(self, path); + ret = map_groups__set_modules_path_dir(mg, path); if (ret < 0) goto out; } else { @@ -1661,7 +1667,8 @@ static int map_groups__set_modules_path_dir(struct map_groups *self, (int)(dot - dent->d_name), dent->d_name); strxfrchar(dso_name, '-', '_'); - map = map_groups__find_by_name(self, MAP__FUNCTION, dso_name); + map = map_groups__find_by_name(mg, MAP__FUNCTION, + dso_name); if (map == NULL) continue; @@ -1711,20 +1718,20 @@ static char *get_kernel_version(const char *root_dir) return strdup(name); } -static int machine__set_modules_path(struct machine *self) +static int machine__set_modules_path(struct machine *machine) { char *version; char modules_path[PATH_MAX]; - version = get_kernel_version(self->root_dir); + version = get_kernel_version(machine->root_dir); if (!version) return -1; snprintf(modules_path, sizeof(modules_path), "%s/lib/modules/%s/kernel", - self->root_dir, version); + machine->root_dir, version); free(version); - return map_groups__set_modules_path_dir(&self->kmaps, modules_path); + return map_groups__set_modules_path_dir(&machine->kmaps, modules_path); } /* @@ -1734,23 +1741,23 @@ static int machine__set_modules_path(struct machine *self) */ static struct map *map__new2(u64 start, struct dso *dso, enum map_type type) { - struct map *self = calloc(1, (sizeof(*self) + - (dso->kernel ? sizeof(struct kmap) : 0))); - if (self != NULL) { + struct map *map = calloc(1, (sizeof(*map) + + (dso->kernel ? sizeof(struct kmap) : 0))); + if (map != NULL) { /* * ->end will be filled after we load all the symbols */ - map__init(self, type, start, 0, 0, dso); + map__init(map, type, start, 0, 0, dso); } - return self; + return map; } -struct map *machine__new_module(struct machine *self, u64 start, +struct map *machine__new_module(struct machine *machine, u64 start, const char *filename) { struct map *map; - struct dso *dso = __dsos__findnew(&self->kernel_dsos, filename); + struct dso *dso = __dsos__findnew(&machine->kernel_dsos, filename); if (dso == NULL) return NULL; @@ -1759,15 +1766,15 @@ struct map *machine__new_module(struct machine *self, u64 start, if (map == NULL) return NULL; - if (machine__is_host(self)) + if (machine__is_host(machine)) dso->symtab_type = SYMTAB__SYSTEM_PATH_KMODULE; else dso->symtab_type = SYMTAB__GUEST_KMODULE; - map_groups__insert(&self->kmaps, map); + map_groups__insert(&machine->kmaps, map); return map; } -static int machine__create_modules(struct machine *self) +static int machine__create_modules(struct machine *machine) { char *line = NULL; size_t n; @@ -1776,10 +1783,10 @@ static int machine__create_modules(struct machine *self) const char *modules; char path[PATH_MAX]; - if (machine__is_default_guest(self)) + if (machine__is_default_guest(machine)) modules = symbol_conf.default_guest_modules; else { - sprintf(path, "%s/proc/modules", self->root_dir); + sprintf(path, "%s/proc/modules", machine->root_dir); modules = path; } @@ -1815,16 +1822,16 @@ static int machine__create_modules(struct machine *self) *sep = '\0'; snprintf(name, sizeof(name), "[%s]", line); - map = machine__new_module(self, start, name); + map = machine__new_module(machine, start, name); if (map == NULL) goto out_delete_line; - dso__kernel_module_get_build_id(map->dso, self->root_dir); + dso__kernel_module_get_build_id(map->dso, machine->root_dir); } free(line); fclose(file); - return machine__set_modules_path(self); + return machine__set_modules_path(machine); out_delete_line: free(line); @@ -1832,7 +1839,7 @@ out_failure: return -1; } -int dso__load_vmlinux(struct dso *self, struct map *map, +int dso__load_vmlinux(struct dso *dso, struct map *map, const char *vmlinux, symbol_filter_t filter) { int err = -1, fd; @@ -1844,9 +1851,9 @@ int dso__load_vmlinux(struct dso *self, struct map *map, if (fd < 0) return -1; - dso__set_long_name(self, (char *)vmlinux); - dso__set_loaded(self, map->type); - err = dso__load_sym(self, map, symfs_vmlinux, fd, filter, 0, 0); + dso__set_long_name(dso, (char *)vmlinux); + dso__set_loaded(dso, map->type); + err = dso__load_sym(dso, map, symfs_vmlinux, fd, filter, 0, 0); close(fd); if (err > 0) @@ -1855,7 +1862,7 @@ int dso__load_vmlinux(struct dso *self, struct map *map, return err; } -int dso__load_vmlinux_path(struct dso *self, struct map *map, +int dso__load_vmlinux_path(struct dso *dso, struct map *map, symbol_filter_t filter) { int i, err = 0; @@ -1864,20 +1871,20 @@ int dso__load_vmlinux_path(struct dso *self, struct map *map, pr_debug("Looking at the vmlinux_path (%d entries long)\n", vmlinux_path__nr_entries + 1); - filename = dso__build_id_filename(self, NULL, 0); + filename = dso__build_id_filename(dso, NULL, 0); if (filename != NULL) { - err = dso__load_vmlinux(self, map, filename, filter); + err = dso__load_vmlinux(dso, map, filename, filter); if (err > 0) { - dso__set_long_name(self, filename); + dso__set_long_name(dso, filename); goto out; } free(filename); } for (i = 0; i < vmlinux_path__nr_entries; ++i) { - err = dso__load_vmlinux(self, map, vmlinux_path[i], filter); + err = dso__load_vmlinux(dso, map, vmlinux_path[i], filter); if (err > 0) { - dso__set_long_name(self, strdup(vmlinux_path[i])); + dso__set_long_name(dso, strdup(vmlinux_path[i])); break; } } @@ -1885,7 +1892,7 @@ out: return err; } -static int dso__load_kernel_sym(struct dso *self, struct map *map, +static int dso__load_kernel_sym(struct dso *dso, struct map *map, symbol_filter_t filter) { int err; @@ -1912,10 +1919,10 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map, } if (symbol_conf.vmlinux_name != NULL) { - err = dso__load_vmlinux(self, map, + err = dso__load_vmlinux(dso, map, symbol_conf.vmlinux_name, filter); if (err > 0) { - dso__set_long_name(self, + dso__set_long_name(dso, strdup(symbol_conf.vmlinux_name)); goto out_fixup; } @@ -1923,7 +1930,7 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map, } if (vmlinux_path != NULL) { - err = dso__load_vmlinux_path(self, map, filter); + err = dso__load_vmlinux_path(dso, map, filter); if (err > 0) goto out_fixup; } @@ -1937,13 +1944,13 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map, * we have a build-id, so check if it is the same as the running kernel, * using it if it is. */ - if (self->has_build_id) { + if (dso->has_build_id) { u8 kallsyms_build_id[BUILD_ID_SIZE]; char sbuild_id[BUILD_ID_SIZE * 2 + 1]; if (sysfs__read_build_id("/sys/kernel/notes", kallsyms_build_id, sizeof(kallsyms_build_id)) == 0) { - if (dso__build_id_equal(self, kallsyms_build_id)) { + if (dso__build_id_equal(dso, kallsyms_build_id)) { kallsyms_filename = "/proc/kallsyms"; goto do_kallsyms; } @@ -1952,7 +1959,7 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map, * Now look if we have it on the build-id cache in * $HOME/.debug/[kernel.kallsyms]. */ - build_id__sprintf(self->build_id, sizeof(self->build_id), + build_id__sprintf(dso->build_id, sizeof(dso->build_id), sbuild_id); if (asprintf(&kallsyms_allocated_filename, @@ -1979,7 +1986,7 @@ static int dso__load_kernel_sym(struct dso *self, struct map *map, } do_kallsyms: - err = dso__load_kallsyms(self, kallsyms_filename, map, filter); + err = dso__load_kallsyms(dso, kallsyms_filename, map, filter); if (err > 0) pr_debug("Using %s for symbols\n", kallsyms_filename); free(kallsyms_allocated_filename); @@ -1987,7 +1994,7 @@ do_kallsyms: if (err > 0) { out_fixup: if (kallsyms_filename != NULL) - dso__set_long_name(self, strdup("[kernel.kallsyms]")); + dso__set_long_name(dso, strdup("[kernel.kallsyms]")); map__fixup_start(map); map__fixup_end(map); } @@ -1995,8 +2002,8 @@ out_fixup: return err; } -static int dso__load_guest_kernel_sym(struct dso *self, struct map *map, - symbol_filter_t filter) +static int dso__load_guest_kernel_sym(struct dso *dso, struct map *map, + symbol_filter_t filter) { int err; const char *kallsyms_filename = NULL; @@ -2016,7 +2023,7 @@ static int dso__load_guest_kernel_sym(struct dso *self, struct map *map, * Or use file guest_kallsyms inputted by user on commandline */ if (symbol_conf.default_guest_vmlinux_name != NULL) { - err = dso__load_vmlinux(self, map, + err = dso__load_vmlinux(dso, map, symbol_conf.default_guest_vmlinux_name, filter); goto out_try_fixup; } @@ -2029,7 +2036,7 @@ static int dso__load_guest_kernel_sym(struct dso *self, struct map *map, kallsyms_filename = path; } - err = dso__load_kallsyms(self, kallsyms_filename, map, filter); + err = dso__load_kallsyms(dso, kallsyms_filename, map, filter); if (err > 0) pr_debug("Using %s for symbols\n", kallsyms_filename); @@ -2037,7 +2044,7 @@ out_try_fixup: if (err > 0) { if (kallsyms_filename != NULL) { machine__mmap_name(machine, path, sizeof(path)); - dso__set_long_name(self, strdup(path)); + dso__set_long_name(dso, strdup(path)); } map__fixup_start(map); map__fixup_end(map); @@ -2090,12 +2097,12 @@ size_t __dsos__fprintf(struct list_head *head, FILE *fp) return ret; } -size_t machines__fprintf_dsos(struct rb_root *self, FILE *fp) +size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp) { struct rb_node *nd; size_t ret = 0; - for (nd = rb_first(self); nd; nd = rb_next(nd)) { + for (nd = rb_first(machines); nd; nd = rb_next(nd)) { struct machine *pos = rb_entry(nd, struct machine, rb_node); ret += __dsos__fprintf(&pos->kernel_dsos, fp); ret += __dsos__fprintf(&pos->user_dsos, fp); @@ -2119,18 +2126,20 @@ static size_t __dsos__fprintf_buildid(struct list_head *head, FILE *fp, return ret; } -size_t machine__fprintf_dsos_buildid(struct machine *self, FILE *fp, bool with_hits) +size_t machine__fprintf_dsos_buildid(struct machine *machine, FILE *fp, + bool with_hits) { - return __dsos__fprintf_buildid(&self->kernel_dsos, fp, with_hits) + - __dsos__fprintf_buildid(&self->user_dsos, fp, with_hits); + return __dsos__fprintf_buildid(&machine->kernel_dsos, fp, with_hits) + + __dsos__fprintf_buildid(&machine->user_dsos, fp, with_hits); } -size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits) +size_t machines__fprintf_dsos_buildid(struct rb_root *machines, + FILE *fp, bool with_hits) { struct rb_node *nd; size_t ret = 0; - for (nd = rb_first(self); nd; nd = rb_next(nd)) { + for (nd = rb_first(machines); nd; nd = rb_next(nd)) { struct machine *pos = rb_entry(nd, struct machine, rb_node); ret += machine__fprintf_dsos_buildid(pos, fp, with_hits); } @@ -2139,59 +2148,59 @@ size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_ struct dso *dso__new_kernel(const char *name) { - struct dso *self = dso__new(name ?: "[kernel.kallsyms]"); + struct dso *dso = dso__new(name ?: "[kernel.kallsyms]"); - if (self != NULL) { - dso__set_short_name(self, "[kernel]"); - self->kernel = DSO_TYPE_KERNEL; + if (dso != NULL) { + dso__set_short_name(dso, "[kernel]"); + dso->kernel = DSO_TYPE_KERNEL; } - return self; + return dso; } static struct dso *dso__new_guest_kernel(struct machine *machine, const char *name) { char bf[PATH_MAX]; - struct dso *self = dso__new(name ?: machine__mmap_name(machine, bf, sizeof(bf))); - - if (self != NULL) { - dso__set_short_name(self, "[guest.kernel]"); - self->kernel = DSO_TYPE_GUEST_KERNEL; + struct dso *dso = dso__new(name ?: machine__mmap_name(machine, bf, + sizeof(bf))); + if (dso != NULL) { + dso__set_short_name(dso, "[guest.kernel]"); + dso->kernel = DSO_TYPE_GUEST_KERNEL; } - return self; + return dso; } -void dso__read_running_kernel_build_id(struct dso *self, struct machine *machine) +void dso__read_running_kernel_build_id(struct dso *dso, struct machine *machine) { char path[PATH_MAX]; if (machine__is_default_guest(machine)) return; sprintf(path, "%s/sys/kernel/notes", machine->root_dir); - if (sysfs__read_build_id(path, self->build_id, - sizeof(self->build_id)) == 0) - self->has_build_id = true; + if (sysfs__read_build_id(path, dso->build_id, + sizeof(dso->build_id)) == 0) + dso->has_build_id = true; } -static struct dso *machine__create_kernel(struct machine *self) +static struct dso *machine__create_kernel(struct machine *machine) { const char *vmlinux_name = NULL; struct dso *kernel; - if (machine__is_host(self)) { + if (machine__is_host(machine)) { vmlinux_name = symbol_conf.vmlinux_name; kernel = dso__new_kernel(vmlinux_name); } else { - if (machine__is_default_guest(self)) + if (machine__is_default_guest(machine)) vmlinux_name = symbol_conf.default_guest_vmlinux_name; - kernel = dso__new_guest_kernel(self, vmlinux_name); + kernel = dso__new_guest_kernel(machine, vmlinux_name); } if (kernel != NULL) { - dso__read_running_kernel_build_id(kernel, self); - dsos__add(&self->kernel_dsos, kernel); + dso__read_running_kernel_build_id(kernel, machine); + dsos__add(&machine->kernel_dsos, kernel); } return kernel; } @@ -2236,41 +2245,43 @@ static u64 machine__get_kernel_start_addr(struct machine *machine) return args.start; } -int __machine__create_kernel_maps(struct machine *self, struct dso *kernel) +int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel) { enum map_type type; - u64 start = machine__get_kernel_start_addr(self); + u64 start = machine__get_kernel_start_addr(machine); for (type = 0; type < MAP__NR_TYPES; ++type) { struct kmap *kmap; - self->vmlinux_maps[type] = map__new2(start, kernel, type); - if (self->vmlinux_maps[type] == NULL) + machine->vmlinux_maps[type] = map__new2(start, kernel, type); + if (machine->vmlinux_maps[type] == NULL) return -1; - self->vmlinux_maps[type]->map_ip = - self->vmlinux_maps[type]->unmap_ip = identity__map_ip; - - kmap = map__kmap(self->vmlinux_maps[type]); - kmap->kmaps = &self->kmaps; - map_groups__insert(&self->kmaps, self->vmlinux_maps[type]); + machine->vmlinux_maps[type]->map_ip = + machine->vmlinux_maps[type]->unmap_ip = + identity__map_ip; + kmap = map__kmap(machine->vmlinux_maps[type]); + kmap->kmaps = &machine->kmaps; + map_groups__insert(&machine->kmaps, + machine->vmlinux_maps[type]); } return 0; } -void machine__destroy_kernel_maps(struct machine *self) +void machine__destroy_kernel_maps(struct machine *machine) { enum map_type type; for (type = 0; type < MAP__NR_TYPES; ++type) { struct kmap *kmap; - if (self->vmlinux_maps[type] == NULL) + if (machine->vmlinux_maps[type] == NULL) continue; - kmap = map__kmap(self->vmlinux_maps[type]); - map_groups__remove(&self->kmaps, self->vmlinux_maps[type]); + kmap = map__kmap(machine->vmlinux_maps[type]); + map_groups__remove(&machine->kmaps, + machine->vmlinux_maps[type]); if (kmap->ref_reloc_sym) { /* * ref_reloc_sym is shared among all maps, so free just @@ -2284,25 +2295,25 @@ void machine__destroy_kernel_maps(struct machine *self) kmap->ref_reloc_sym = NULL; } - map__delete(self->vmlinux_maps[type]); - self->vmlinux_maps[type] = NULL; + map__delete(machine->vmlinux_maps[type]); + machine->vmlinux_maps[type] = NULL; } } -int machine__create_kernel_maps(struct machine *self) +int machine__create_kernel_maps(struct machine *machine) { - struct dso *kernel = machine__create_kernel(self); + struct dso *kernel = machine__create_kernel(machine); if (kernel == NULL || - __machine__create_kernel_maps(self, kernel) < 0) + __machine__create_kernel_maps(machine, kernel) < 0) return -1; - if (symbol_conf.use_modules && machine__create_modules(self) < 0) + if (symbol_conf.use_modules && machine__create_modules(machine) < 0) pr_debug("Problems creating module maps, continuing anyway...\n"); /* * Now that we have all the maps created, just set the ->end of them: */ - map_groups__fixup_end(&self->kmaps); + map_groups__fixup_end(&machine->kmaps); return 0; } @@ -2366,11 +2377,11 @@ out_fail: return -1; } -size_t machine__fprintf_vmlinux_path(struct machine *self, FILE *fp) +size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp) { int i; size_t printed = 0; - struct dso *kdso = self->vmlinux_maps[MAP__FUNCTION]->dso; + struct dso *kdso = machine->vmlinux_maps[MAP__FUNCTION]->dso; if (kdso->has_build_id) { char filename[PATH_MAX]; @@ -2467,9 +2478,9 @@ void symbol__exit(void) symbol_conf.initialized = false; } -int machines__create_kernel_maps(struct rb_root *self, pid_t pid) +int machines__create_kernel_maps(struct rb_root *machines, pid_t pid) { - struct machine *machine = machines__findnew(self, pid); + struct machine *machine = machines__findnew(machines, pid); if (machine == NULL) return -1; @@ -2520,7 +2531,7 @@ char *strxfrchar(char *s, char from, char to) return s; } -int machines__create_guest_kernel_maps(struct rb_root *self) +int machines__create_guest_kernel_maps(struct rb_root *machines) { int ret = 0; struct dirent **namelist = NULL; @@ -2531,7 +2542,7 @@ int machines__create_guest_kernel_maps(struct rb_root *self) if (symbol_conf.default_guest_vmlinux_name || symbol_conf.default_guest_modules || symbol_conf.default_guest_kallsyms) { - machines__create_kernel_maps(self, DEFAULT_GUEST_KERNEL_ID); + machines__create_kernel_maps(machines, DEFAULT_GUEST_KERNEL_ID); } if (symbol_conf.guestmount) { @@ -2552,7 +2563,7 @@ int machines__create_guest_kernel_maps(struct rb_root *self) pr_debug("Can't access file %s\n", path); goto failure; } - machines__create_kernel_maps(self, pid); + machines__create_kernel_maps(machines, pid); } failure: free(namelist); @@ -2561,23 +2572,23 @@ failure: return ret; } -void machines__destroy_guest_kernel_maps(struct rb_root *self) +void machines__destroy_guest_kernel_maps(struct rb_root *machines) { - struct rb_node *next = rb_first(self); + struct rb_node *next = rb_first(machines); while (next) { struct machine *pos = rb_entry(next, struct machine, rb_node); next = rb_next(&pos->rb_node); - rb_erase(&pos->rb_node, self); + rb_erase(&pos->rb_node, machines); machine__delete(pos); } } -int machine__load_kallsyms(struct machine *self, const char *filename, +int machine__load_kallsyms(struct machine *machine, const char *filename, enum map_type type, symbol_filter_t filter) { - struct map *map = self->vmlinux_maps[type]; + struct map *map = machine->vmlinux_maps[type]; int ret = dso__load_kallsyms(map->dso, filename, map, filter); if (ret > 0) { @@ -2587,16 +2598,16 @@ int machine__load_kallsyms(struct machine *self, const char *filename, * kernel, with modules between them, fixup the end of all * sections. */ - __map_groups__fixup_end(&self->kmaps, type); + __map_groups__fixup_end(&machine->kmaps, type); } return ret; } -int machine__load_vmlinux_path(struct machine *self, enum map_type type, +int machine__load_vmlinux_path(struct machine *machine, enum map_type type, symbol_filter_t filter) { - struct map *map = self->vmlinux_maps[type]; + struct map *map = machine->vmlinux_maps[type]; int ret = dso__load_vmlinux_path(map->dso, map, filter); if (ret > 0) { diff --git a/tools/perf/util/symbol.h b/tools/perf/util/symbol.h index 713b0b40cc4a..242de0101a86 100644 --- a/tools/perf/util/symbol.h +++ b/tools/perf/util/symbol.h @@ -62,7 +62,7 @@ struct symbol { char name[0]; }; -void symbol__delete(struct symbol *self); +void symbol__delete(struct symbol *sym); struct strlist; @@ -96,9 +96,9 @@ struct symbol_conf { extern struct symbol_conf symbol_conf; -static inline void *symbol__priv(struct symbol *self) +static inline void *symbol__priv(struct symbol *sym) { - return ((void *)self) - symbol_conf.priv_size; + return ((void *)sym) - symbol_conf.priv_size; } struct ref_reloc_sym { @@ -155,43 +155,45 @@ struct dso { struct dso *dso__new(const char *name); struct dso *dso__new_kernel(const char *name); -void dso__delete(struct dso *self); +void dso__delete(struct dso *dso); -int dso__name_len(const struct dso *self); +int dso__name_len(const struct dso *dso); -bool dso__loaded(const struct dso *self, enum map_type type); -bool dso__sorted_by_name(const struct dso *self, enum map_type type); +bool dso__loaded(const struct dso *dso, enum map_type type); +bool dso__sorted_by_name(const struct dso *dso, enum map_type type); -static inline void dso__set_loaded(struct dso *self, enum map_type type) +static inline void dso__set_loaded(struct dso *dso, enum map_type type) { - self->loaded |= (1 << type); + dso->loaded |= (1 << type); } -void dso__sort_by_name(struct dso *self, enum map_type type); +void dso__sort_by_name(struct dso *dso, enum map_type type); struct dso *__dsos__findnew(struct list_head *head, const char *name); -int dso__load(struct dso *self, struct map *map, symbol_filter_t filter); -int dso__load_vmlinux(struct dso *self, struct map *map, +int dso__load(struct dso *dso, struct map *map, symbol_filter_t filter); +int dso__load_vmlinux(struct dso *dso, struct map *map, const char *vmlinux, symbol_filter_t filter); -int dso__load_vmlinux_path(struct dso *self, struct map *map, +int dso__load_vmlinux_path(struct dso *dso, struct map *map, symbol_filter_t filter); -int dso__load_kallsyms(struct dso *self, const char *filename, struct map *map, +int dso__load_kallsyms(struct dso *dso, const char *filename, struct map *map, symbol_filter_t filter); -int machine__load_kallsyms(struct machine *self, const char *filename, +int machine__load_kallsyms(struct machine *machine, const char *filename, enum map_type type, symbol_filter_t filter); -int machine__load_vmlinux_path(struct machine *self, enum map_type type, +int machine__load_vmlinux_path(struct machine *machine, enum map_type type, symbol_filter_t filter); size_t __dsos__fprintf(struct list_head *head, FILE *fp); -size_t machine__fprintf_dsos_buildid(struct machine *self, FILE *fp, bool with_hits); -size_t machines__fprintf_dsos(struct rb_root *self, FILE *fp); -size_t machines__fprintf_dsos_buildid(struct rb_root *self, FILE *fp, bool with_hits); - -size_t dso__fprintf_buildid(struct dso *self, FILE *fp); -size_t dso__fprintf_symbols_by_name(struct dso *self, enum map_type type, FILE *fp); -size_t dso__fprintf(struct dso *self, enum map_type type, FILE *fp); +size_t machine__fprintf_dsos_buildid(struct machine *machine, + FILE *fp, bool with_hits); +size_t machines__fprintf_dsos(struct rb_root *machines, FILE *fp); +size_t machines__fprintf_dsos_buildid(struct rb_root *machines, + FILE *fp, bool with_hits); +size_t dso__fprintf_buildid(struct dso *dso, FILE *fp); +size_t dso__fprintf_symbols_by_name(struct dso *dso, + enum map_type type, FILE *fp); +size_t dso__fprintf(struct dso *dso, enum map_type type, FILE *fp); enum symtab_type { SYMTAB__KALLSYMS = 0, @@ -207,34 +209,36 @@ enum symtab_type { SYMTAB__NOT_FOUND, }; -char dso__symtab_origin(const struct dso *self); -void dso__set_long_name(struct dso *self, char *name); -void dso__set_build_id(struct dso *self, void *build_id); -void dso__read_running_kernel_build_id(struct dso *self, struct machine *machine); -struct symbol *dso__find_symbol(struct dso *self, enum map_type type, u64 addr); -struct symbol *dso__find_symbol_by_name(struct dso *self, enum map_type type, +char dso__symtab_origin(const struct dso *dso); +void dso__set_long_name(struct dso *dso, char *name); +void dso__set_build_id(struct dso *dso, void *build_id); +void dso__read_running_kernel_build_id(struct dso *dso, + struct machine *machine); +struct symbol *dso__find_symbol(struct dso *dso, enum map_type type, + u64 addr); +struct symbol *dso__find_symbol_by_name(struct dso *dso, enum map_type type, const char *name); int filename__read_build_id(const char *filename, void *bf, size_t size); int sysfs__read_build_id(const char *filename, void *bf, size_t size); bool __dsos__read_build_ids(struct list_head *head, bool with_hits); -int build_id__sprintf(const u8 *self, int len, char *bf); +int build_id__sprintf(const u8 *build_id, int len, char *bf); int kallsyms__parse(const char *filename, void *arg, int (*process_symbol)(void *arg, const char *name, char type, u64 start, u64 end)); -void machine__destroy_kernel_maps(struct machine *self); -int __machine__create_kernel_maps(struct machine *self, struct dso *kernel); -int machine__create_kernel_maps(struct machine *self); +void machine__destroy_kernel_maps(struct machine *machine); +int __machine__create_kernel_maps(struct machine *machine, struct dso *kernel); +int machine__create_kernel_maps(struct machine *machine); -int machines__create_kernel_maps(struct rb_root *self, pid_t pid); -int machines__create_guest_kernel_maps(struct rb_root *self); -void machines__destroy_guest_kernel_maps(struct rb_root *self); +int machines__create_kernel_maps(struct rb_root *machines, pid_t pid); +int machines__create_guest_kernel_maps(struct rb_root *machines); +void machines__destroy_guest_kernel_maps(struct rb_root *machines); int symbol__init(void); void symbol__exit(void); bool symbol_type__is_a(char symbol_type, enum map_type map_type); -size_t machine__fprintf_vmlinux_path(struct machine *self, FILE *fp); +size_t machine__fprintf_vmlinux_path(struct machine *machine, FILE *fp); #endif /* __PERF_SYMBOL */ |