diff options
Diffstat (limited to 'include')
| -rw-r--r-- | include/asm-generic/vmlinux.lds.h | 10 | ||||
| -rw-r--r-- | include/linux/compiler.h | 2 | ||||
| -rw-r--r-- | include/linux/kprobes.h | 21 | ||||
| -rw-r--r-- | include/linux/perf_event.h | 18 | ||||
| -rw-r--r-- | include/linux/sched.h | 6 | ||||
| -rw-r--r-- | include/linux/uprobes.h | 4 | ||||
| -rw-r--r-- | include/uapi/linux/perf_event.h | 12 |
7 files changed, 63 insertions, 10 deletions
diff --git a/include/asm-generic/vmlinux.lds.h b/include/asm-generic/vmlinux.lds.h index d647637cd699..471ba48c7ae4 100644 --- a/include/asm-generic/vmlinux.lds.h +++ b/include/asm-generic/vmlinux.lds.h @@ -109,6 +109,15 @@ #define BRANCH_PROFILE() #endif +#ifdef CONFIG_KPROBES +#define KPROBE_BLACKLIST() . = ALIGN(8); \ + VMLINUX_SYMBOL(__start_kprobe_blacklist) = .; \ + *(_kprobe_blacklist) \ + VMLINUX_SYMBOL(__stop_kprobe_blacklist) = .; +#else +#define KPROBE_BLACKLIST() +#endif + #ifdef CONFIG_EVENT_TRACING #define FTRACE_EVENTS() . = ALIGN(8); \ VMLINUX_SYMBOL(__start_ftrace_events) = .; \ @@ -478,6 +487,7 @@ *(.init.rodata) \ FTRACE_EVENTS() \ TRACE_SYSCALLS() \ + KPROBE_BLACKLIST() \ MEM_DISCARD(init.rodata) \ CLK_OF_TABLES() \ RESERVEDMEM_OF_TABLES() \ diff --git a/include/linux/compiler.h b/include/linux/compiler.h index 64fdfe1cfcf0..d5ad7b1118fc 100644 --- a/include/linux/compiler.h +++ b/include/linux/compiler.h @@ -383,7 +383,9 @@ void ftrace_likely_update(struct ftrace_branch_data *f, int val, int expect); /* Ignore/forbid kprobes attach on very low level functions marked by this attribute: */ #ifdef CONFIG_KPROBES # define __kprobes __attribute__((__section__(".kprobes.text"))) +# define nokprobe_inline __always_inline #else # define __kprobes +# define nokprobe_inline inline #endif #endif /* __LINUX_COMPILER_H */ diff --git a/include/linux/kprobes.h b/include/linux/kprobes.h index 7bd2ad01e39c..f7296e57d614 100644 --- a/include/linux/kprobes.h +++ b/include/linux/kprobes.h @@ -205,10 +205,10 @@ struct kretprobe_blackpoint { void *addr; }; -struct kprobe_blackpoint { - const char *name; +struct kprobe_blacklist_entry { + struct list_head list; unsigned long start_addr; - unsigned long range; + unsigned long end_addr; }; #ifdef CONFIG_KPROBES @@ -265,6 +265,7 @@ extern void arch_disarm_kprobe(struct kprobe *p); extern int arch_init_kprobes(void); extern void show_registers(struct pt_regs *regs); extern void kprobes_inc_nmissed_count(struct kprobe *p); +extern bool arch_within_kprobe_blacklist(unsigned long addr); struct kprobe_insn_cache { struct mutex mutex; @@ -476,4 +477,18 @@ static inline int enable_jprobe(struct jprobe *jp) return enable_kprobe(&jp->kp); } +#ifdef CONFIG_KPROBES +/* + * Blacklist ganerating macro. Specify functions which is not probed + * by using this macro. + */ +#define __NOKPROBE_SYMBOL(fname) \ +static unsigned long __used \ + __attribute__((section("_kprobe_blacklist"))) \ + _kbl_addr_##fname = (unsigned long)fname; +#define NOKPROBE_SYMBOL(fname) __NOKPROBE_SYMBOL(fname) +#else +#define NOKPROBE_SYMBOL(fname) +#endif + #endif /* _LINUX_KPROBES_H */ diff --git a/include/linux/perf_event.h b/include/linux/perf_event.h index a9209118d80f..707617a8c0f6 100644 --- a/include/linux/perf_event.h +++ b/include/linux/perf_event.h @@ -167,6 +167,11 @@ struct perf_event; #define PERF_EVENT_TXN 0x1 /** + * pmu::capabilities flags + */ +#define PERF_PMU_CAP_NO_INTERRUPT 0x01 + +/** * struct pmu - generic performance monitoring unit */ struct pmu { @@ -178,6 +183,11 @@ struct pmu { const char *name; int type; + /* + * various common per-pmu feature flags + */ + int capabilities; + int * __percpu pmu_disable_count; struct perf_cpu_context * __percpu pmu_cpu_context; int task_ctx_nr; @@ -696,7 +706,8 @@ extern struct perf_guest_info_callbacks *perf_guest_cbs; extern int perf_register_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks); extern int perf_unregister_guest_info_callbacks(struct perf_guest_info_callbacks *callbacks); -extern void perf_event_comm(struct task_struct *tsk); +extern void perf_event_exec(void); +extern void perf_event_comm(struct task_struct *tsk, bool exec); extern void perf_event_fork(struct task_struct *tsk); /* Callchains */ @@ -773,7 +784,7 @@ extern void perf_event_enable(struct perf_event *event); extern void perf_event_disable(struct perf_event *event); extern int __perf_event_disable(void *info); extern void perf_event_task_tick(void); -#else +#else /* !CONFIG_PERF_EVENTS: */ static inline void perf_event_task_sched_in(struct task_struct *prev, struct task_struct *task) { } @@ -803,7 +814,8 @@ static inline int perf_unregister_guest_info_callbacks (struct perf_guest_info_callbacks *callbacks) { return 0; } static inline void perf_event_mmap(struct vm_area_struct *vma) { } -static inline void perf_event_comm(struct task_struct *tsk) { } +static inline void perf_event_exec(void) { } +static inline void perf_event_comm(struct task_struct *tsk, bool exec) { } static inline void perf_event_fork(struct task_struct *tsk) { } static inline void perf_event_init(void) { } static inline int perf_swevent_get_recursion_context(void) { return -1; } diff --git a/include/linux/sched.h b/include/linux/sched.h index ea74596014a2..b8a98427f964 100644 --- a/include/linux/sched.h +++ b/include/linux/sched.h @@ -2421,7 +2421,11 @@ extern long do_fork(unsigned long, unsigned long, unsigned long, int __user *, i struct task_struct *fork_idle(int); extern pid_t kernel_thread(int (*fn)(void *), void *arg, unsigned long flags); -extern void set_task_comm(struct task_struct *tsk, const char *from); +extern void __set_task_comm(struct task_struct *tsk, const char *from, bool exec); +static inline void set_task_comm(struct task_struct *tsk, const char *from) +{ + __set_task_comm(tsk, from, false); +} extern char *get_task_comm(char *to, struct task_struct *tsk); #ifdef CONFIG_SMP diff --git a/include/linux/uprobes.h b/include/linux/uprobes.h index c52f827ba6ce..4f844c6b03ee 100644 --- a/include/linux/uprobes.h +++ b/include/linux/uprobes.h @@ -103,6 +103,7 @@ extern int __weak set_orig_insn(struct arch_uprobe *aup, struct mm_struct *mm, u extern bool __weak is_swbp_insn(uprobe_opcode_t *insn); extern bool __weak is_trap_insn(uprobe_opcode_t *insn); extern unsigned long __weak uprobe_get_swbp_addr(struct pt_regs *regs); +extern unsigned long uprobe_get_trap_addr(struct pt_regs *regs); extern int uprobe_write_opcode(struct mm_struct *mm, unsigned long vaddr, uprobe_opcode_t); extern int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *uc); extern int uprobe_apply(struct inode *inode, loff_t offset, struct uprobe_consumer *uc, bool); @@ -133,6 +134,9 @@ extern void __weak arch_uprobe_copy_ixol(struct page *page, unsigned long vaddr, #else /* !CONFIG_UPROBES */ struct uprobes_state { }; + +#define uprobe_get_trap_addr(regs) instruction_pointer(regs) + static inline int uprobe_register(struct inode *inode, loff_t offset, struct uprobe_consumer *uc) { diff --git a/include/uapi/linux/perf_event.h b/include/uapi/linux/perf_event.h index e3fc8f09d110..5312fae47218 100644 --- a/include/uapi/linux/perf_event.h +++ b/include/uapi/linux/perf_event.h @@ -163,8 +163,9 @@ enum perf_branch_sample_type { PERF_SAMPLE_BRANCH_ABORT_TX = 1U << 7, /* transaction aborts */ PERF_SAMPLE_BRANCH_IN_TX = 1U << 8, /* in transaction */ PERF_SAMPLE_BRANCH_NO_TX = 1U << 9, /* not in transaction */ + PERF_SAMPLE_BRANCH_COND = 1U << 10, /* conditional branches */ - PERF_SAMPLE_BRANCH_MAX = 1U << 10, /* non-ABI */ + PERF_SAMPLE_BRANCH_MAX = 1U << 11, /* non-ABI */ }; #define PERF_SAMPLE_BRANCH_PLM_ALL \ @@ -301,8 +302,8 @@ struct perf_event_attr { exclude_callchain_kernel : 1, /* exclude kernel callchains */ exclude_callchain_user : 1, /* exclude user callchains */ mmap2 : 1, /* include mmap with inode data */ - - __reserved_1 : 40; + comm_exec : 1, /* flag comm events that are due to an exec */ + __reserved_1 : 39; union { __u32 wakeup_events; /* wakeup every n events */ @@ -501,7 +502,12 @@ struct perf_event_mmap_page { #define PERF_RECORD_MISC_GUEST_KERNEL (4 << 0) #define PERF_RECORD_MISC_GUEST_USER (5 << 0) +/* + * PERF_RECORD_MISC_MMAP_DATA and PERF_RECORD_MISC_COMM_EXEC are used on + * different events so can reuse the same bit position. + */ #define PERF_RECORD_MISC_MMAP_DATA (1 << 13) +#define PERF_RECORD_MISC_COMM_EXEC (1 << 13) /* * Indicates that the content of PERF_SAMPLE_IP points to * the actual instruction that triggered the event. See also |