diff options
| -rw-r--r-- | arch/s390/kernel/ftrace.c | 4 | ||||
| -rw-r--r-- | arch/s390/kernel/idle.c | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/kprobes.c | 88 | ||||
| -rw-r--r-- | arch/s390/kernel/process.c | 2 | ||||
| -rw-r--r-- | arch/s390/kernel/time.c | 3 | ||||
| -rw-r--r-- | arch/s390/kernel/traps.c | 14 | ||||
| -rw-r--r-- | arch/s390/mm/fault.c | 6 |
7 files changed, 74 insertions, 46 deletions
diff --git a/arch/s390/kernel/ftrace.c b/arch/s390/kernel/ftrace.c index 5744d25c1d33..708c772b086d 100644 --- a/arch/s390/kernel/ftrace.c +++ b/arch/s390/kernel/ftrace.c @@ -152,8 +152,7 @@ device_initcall(ftrace_plt_init); * Hook the return address and push it in the stack of return addresses * in current thread info. */ -unsigned long __kprobes prepare_ftrace_return(unsigned long parent, - unsigned long ip) +unsigned long prepare_ftrace_return(unsigned long parent, unsigned long ip) { struct ftrace_graph_ent trace; @@ -171,6 +170,7 @@ unsigned long __kprobes prepare_ftrace_return(unsigned long parent, out: return parent; } +NOKPROBE_SYMBOL(prepare_ftrace_return); /* * Patch the kernel code at ftrace_graph_caller location. The instruction diff --git a/arch/s390/kernel/idle.c b/arch/s390/kernel/idle.c index 7559f1beab29..05fbc2c98faf 100644 --- a/arch/s390/kernel/idle.c +++ b/arch/s390/kernel/idle.c @@ -19,7 +19,7 @@ static DEFINE_PER_CPU(struct s390_idle_data, s390_idle); -void __kprobes enabled_wait(void) +void enabled_wait(void) { struct s390_idle_data *idle = this_cpu_ptr(&s390_idle); unsigned long long idle_time; @@ -46,6 +46,7 @@ void __kprobes enabled_wait(void) smp_wmb(); idle->sequence++; } +NOKPROBE_SYMBOL(enabled_wait); static ssize_t show_idle_count(struct device *dev, struct device_attribute *attr, char *buf) diff --git a/arch/s390/kernel/kprobes.c b/arch/s390/kernel/kprobes.c index d6716c29b7f8..ee0396755430 100644 --- a/arch/s390/kernel/kprobes.c +++ b/arch/s390/kernel/kprobes.c @@ -59,7 +59,7 @@ struct kprobe_insn_cache kprobe_dmainsn_slots = { .insn_size = MAX_INSN_SIZE, }; -static void __kprobes copy_instruction(struct kprobe *p) +static void copy_instruction(struct kprobe *p) { unsigned long ip = (unsigned long) p->addr; s64 disp, new_disp; @@ -91,13 +91,14 @@ static void __kprobes copy_instruction(struct kprobe *p) new_disp = ((addr + (disp * 2)) - new_addr) / 2; *(s32 *)&p->ainsn.insn[1] = new_disp; } +NOKPROBE_SYMBOL(copy_instruction); static inline int is_kernel_addr(void *addr) { return addr < (void *)_end; } -static int __kprobes s390_get_insn_slot(struct kprobe *p) +static int s390_get_insn_slot(struct kprobe *p) { /* * Get an insn slot that is within the same 2GB area like the original @@ -111,8 +112,9 @@ static int __kprobes s390_get_insn_slot(struct kprobe *p) p->ainsn.insn = get_insn_slot(); return p->ainsn.insn ? 0 : -ENOMEM; } +NOKPROBE_SYMBOL(s390_get_insn_slot); -static void __kprobes s390_free_insn_slot(struct kprobe *p) +static void s390_free_insn_slot(struct kprobe *p) { if (!p->ainsn.insn) return; @@ -122,8 +124,9 @@ static void __kprobes s390_free_insn_slot(struct kprobe *p) free_insn_slot(p->ainsn.insn, 0); p->ainsn.insn = NULL; } +NOKPROBE_SYMBOL(s390_free_insn_slot); -int __kprobes arch_prepare_kprobe(struct kprobe *p) +int arch_prepare_kprobe(struct kprobe *p) { if ((unsigned long) p->addr & 0x01) return -EINVAL; @@ -135,6 +138,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p) copy_instruction(p); return 0; } +NOKPROBE_SYMBOL(arch_prepare_kprobe); int arch_check_ftrace_location(struct kprobe *p) { @@ -146,7 +150,7 @@ struct swap_insn_args { unsigned int arm_kprobe : 1; }; -static int __kprobes swap_instruction(void *data) +static int swap_instruction(void *data) { struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); unsigned long status = kcb->kprobe_status; @@ -177,29 +181,33 @@ skip_ftrace: kcb->kprobe_status = status; return 0; } +NOKPROBE_SYMBOL(swap_instruction); -void __kprobes arch_arm_kprobe(struct kprobe *p) +void arch_arm_kprobe(struct kprobe *p) { struct swap_insn_args args = {.p = p, .arm_kprobe = 1}; stop_machine(swap_instruction, &args, NULL); } +NOKPROBE_SYMBOL(arch_arm_kprobe); -void __kprobes arch_disarm_kprobe(struct kprobe *p) +void arch_disarm_kprobe(struct kprobe *p) { struct swap_insn_args args = {.p = p, .arm_kprobe = 0}; stop_machine(swap_instruction, &args, NULL); } +NOKPROBE_SYMBOL(arch_disarm_kprobe); -void __kprobes arch_remove_kprobe(struct kprobe *p) +void arch_remove_kprobe(struct kprobe *p) { s390_free_insn_slot(p); } +NOKPROBE_SYMBOL(arch_remove_kprobe); -static void __kprobes enable_singlestep(struct kprobe_ctlblk *kcb, - struct pt_regs *regs, - unsigned long ip) +static void enable_singlestep(struct kprobe_ctlblk *kcb, + struct pt_regs *regs, + unsigned long ip) { struct per_regs per_kprobe; @@ -219,10 +227,11 @@ static void __kprobes enable_singlestep(struct kprobe_ctlblk *kcb, regs->psw.mask &= ~(PSW_MASK_IO | PSW_MASK_EXT); regs->psw.addr = ip | PSW_ADDR_AMODE; } +NOKPROBE_SYMBOL(enable_singlestep); -static void __kprobes disable_singlestep(struct kprobe_ctlblk *kcb, - struct pt_regs *regs, - unsigned long ip) +static void disable_singlestep(struct kprobe_ctlblk *kcb, + struct pt_regs *regs, + unsigned long ip) { /* Restore control regs and psw mask, set new psw address */ __ctl_load(kcb->kprobe_saved_ctl, 9, 11); @@ -230,41 +239,43 @@ static void __kprobes disable_singlestep(struct kprobe_ctlblk *kcb, regs->psw.mask |= kcb->kprobe_saved_imask; regs->psw.addr = ip | PSW_ADDR_AMODE; } +NOKPROBE_SYMBOL(disable_singlestep); /* * Activate a kprobe by storing its pointer to current_kprobe. The * previous kprobe is stored in kcb->prev_kprobe. A stack of up to * two kprobes can be active, see KPROBE_REENTER. */ -static void __kprobes push_kprobe(struct kprobe_ctlblk *kcb, struct kprobe *p) +static void push_kprobe(struct kprobe_ctlblk *kcb, struct kprobe *p) { kcb->prev_kprobe.kp = __this_cpu_read(current_kprobe); kcb->prev_kprobe.status = kcb->kprobe_status; __this_cpu_write(current_kprobe, p); } +NOKPROBE_SYMBOL(push_kprobe); /* * Deactivate a kprobe by backing up to the previous state. If the * current state is KPROBE_REENTER prev_kprobe.kp will be non-NULL, * for any other state prev_kprobe.kp will be NULL. */ -static void __kprobes pop_kprobe(struct kprobe_ctlblk *kcb) +static void pop_kprobe(struct kprobe_ctlblk *kcb) { __this_cpu_write(current_kprobe, kcb->prev_kprobe.kp); kcb->kprobe_status = kcb->prev_kprobe.status; } +NOKPROBE_SYMBOL(pop_kprobe); -void __kprobes arch_prepare_kretprobe(struct kretprobe_instance *ri, - struct pt_regs *regs) +void arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs) { ri->ret_addr = (kprobe_opcode_t *) regs->gprs[14]; /* Replace the return addr with trampoline addr */ regs->gprs[14] = (unsigned long) &kretprobe_trampoline; } +NOKPROBE_SYMBOL(arch_prepare_kretprobe); -static void __kprobes kprobe_reenter_check(struct kprobe_ctlblk *kcb, - struct kprobe *p) +static void kprobe_reenter_check(struct kprobe_ctlblk *kcb, struct kprobe *p) { switch (kcb->kprobe_status) { case KPROBE_HIT_SSDONE: @@ -284,8 +295,9 @@ static void __kprobes kprobe_reenter_check(struct kprobe_ctlblk *kcb, BUG(); } } +NOKPROBE_SYMBOL(kprobe_reenter_check); -static int __kprobes kprobe_handler(struct pt_regs *regs) +static int kprobe_handler(struct pt_regs *regs) { struct kprobe_ctlblk *kcb; struct kprobe *p; @@ -359,6 +371,7 @@ static int __kprobes kprobe_handler(struct pt_regs *regs) preempt_enable_no_resched(); return 0; } +NOKPROBE_SYMBOL(kprobe_handler); /* * Function return probe trampoline: @@ -375,8 +388,7 @@ static void __used kretprobe_trampoline_holder(void) /* * Called when the probe at kretprobe trampoline is hit */ -static int __kprobes trampoline_probe_handler(struct kprobe *p, - struct pt_regs *regs) +static int trampoline_probe_handler(struct kprobe *p, struct pt_regs *regs) { struct kretprobe_instance *ri; struct hlist_head *head, empty_rp; @@ -464,6 +476,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p, */ return 1; } +NOKPROBE_SYMBOL(trampoline_probe_handler); /* * Called after single-stepping. p->addr is the address of the @@ -473,7 +486,7 @@ static int __kprobes trampoline_probe_handler(struct kprobe *p, * single-stepped a copy of the instruction. The address of this * copy is p->ainsn.insn. */ -static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) +static void resume_execution(struct kprobe *p, struct pt_regs *regs) { struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); unsigned long ip = regs->psw.addr & PSW_ADDR_INSN; @@ -514,8 +527,9 @@ static void __kprobes resume_execution(struct kprobe *p, struct pt_regs *regs) disable_singlestep(kcb, regs, ip); } +NOKPROBE_SYMBOL(resume_execution); -static int __kprobes post_kprobe_handler(struct pt_regs *regs) +static int post_kprobe_handler(struct pt_regs *regs) { struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); struct kprobe *p = kprobe_running(); @@ -542,8 +556,9 @@ static int __kprobes post_kprobe_handler(struct pt_regs *regs) return 1; } +NOKPROBE_SYMBOL(post_kprobe_handler); -static int __kprobes kprobe_trap_handler(struct pt_regs *regs, int trapnr) +static int kprobe_trap_handler(struct pt_regs *regs, int trapnr) { struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); struct kprobe *p = kprobe_running(); @@ -605,8 +620,9 @@ static int __kprobes kprobe_trap_handler(struct pt_regs *regs, int trapnr) } return 0; } +NOKPROBE_SYMBOL(kprobe_trap_handler); -int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) +int kprobe_fault_handler(struct pt_regs *regs, int trapnr) { int ret; @@ -617,12 +633,13 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr) local_irq_restore(regs->psw.mask & ~PSW_MASK_PER); return ret; } +NOKPROBE_SYMBOL(kprobe_fault_handler); /* * Wrapper routine to for handling exceptions. */ -int __kprobes kprobe_exceptions_notify(struct notifier_block *self, - unsigned long val, void *data) +int kprobe_exceptions_notify(struct notifier_block *self, + unsigned long val, void *data) { struct die_args *args = (struct die_args *) data; struct pt_regs *regs = args->regs; @@ -654,8 +671,9 @@ int __kprobes kprobe_exceptions_notify(struct notifier_block *self, return ret; } +NOKPROBE_SYMBOL(kprobe_exceptions_notify); -int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) +int setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) { struct jprobe *jp = container_of(p, struct jprobe, kp); struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); @@ -673,13 +691,15 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs) memcpy(kcb->jprobes_stack, (void *) stack, MIN_STACK_SIZE(stack)); return 1; } +NOKPROBE_SYMBOL(setjmp_pre_handler); -void __kprobes jprobe_return(void) +void jprobe_return(void) { asm volatile(".word 0x0002"); } +NOKPROBE_SYMBOL(jprobe_return); -int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) +int longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) { struct kprobe_ctlblk *kcb = get_kprobe_ctlblk(); unsigned long stack; @@ -693,6 +713,7 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs) preempt_enable_no_resched(); return 1; } +NOKPROBE_SYMBOL(longjmp_break_handler); static struct kprobe trampoline = { .addr = (kprobe_opcode_t *) &kretprobe_trampoline, @@ -704,7 +725,8 @@ int __init arch_init_kprobes(void) return register_kprobe(&trampoline); } -int __kprobes arch_trampoline_kprobe(struct kprobe *p) +int arch_trampoline_kprobe(struct kprobe *p) { return p->addr == (kprobe_opcode_t *) &kretprobe_trampoline; } +NOKPROBE_SYMBOL(arch_trampoline_kprobe); diff --git a/arch/s390/kernel/process.c b/arch/s390/kernel/process.c index ed84cc224899..4192dfd55ddc 100644 --- a/arch/s390/kernel/process.c +++ b/arch/s390/kernel/process.c @@ -61,7 +61,7 @@ unsigned long thread_saved_pc(struct task_struct *tsk) return sf->gprs[8]; } -extern void __kprobes kernel_thread_starter(void); +extern void kernel_thread_starter(void); /* * Free current thread data structures etc.. diff --git a/arch/s390/kernel/time.c b/arch/s390/kernel/time.c index 005d665fe4a5..20660dddb2d6 100644 --- a/arch/s390/kernel/time.c +++ b/arch/s390/kernel/time.c @@ -61,10 +61,11 @@ static DEFINE_PER_CPU(struct clock_event_device, comparators); /* * Scheduler clock - returns current time in nanosec units. */ -unsigned long long notrace __kprobes sched_clock(void) +unsigned long long notrace sched_clock(void) { return tod_to_ns(get_tod_clock_monotonic()); } +NOKPROBE_SYMBOL(sched_clock); /* * Monotonic_clock - returns # of nanoseconds passed since time_init() diff --git a/arch/s390/kernel/traps.c b/arch/s390/kernel/traps.c index 9ff5ecba26ab..1e1b866b2966 100644 --- a/arch/s390/kernel/traps.c +++ b/arch/s390/kernel/traps.c @@ -87,16 +87,16 @@ void do_report_trap(struct pt_regs *regs, int si_signo, int si_code, char *str) } } -static void __kprobes do_trap(struct pt_regs *regs, int si_signo, int si_code, - char *str) +static void do_trap(struct pt_regs *regs, int si_signo, int si_code, char *str) { if (notify_die(DIE_TRAP, str, regs, 0, regs->int_code, si_signo) == NOTIFY_STOP) return; do_report_trap(regs, si_signo, si_code, str); } +NOKPROBE_SYMBOL(do_trap); -void __kprobes do_per_trap(struct pt_regs *regs) +void do_per_trap(struct pt_regs *regs) { siginfo_t info; @@ -111,6 +111,7 @@ void __kprobes do_per_trap(struct pt_regs *regs) (void __force __user *) current->thread.per_event.address; force_sig_info(SIGTRAP, &info, current); } +NOKPROBE_SYMBOL(do_per_trap); void default_trap_handler(struct pt_regs *regs) { @@ -179,7 +180,7 @@ static inline void do_fp_trap(struct pt_regs *regs, int fpc) do_trap(regs, SIGFPE, si_code, "floating point exception"); } -void __kprobes illegal_op(struct pt_regs *regs) +void illegal_op(struct pt_regs *regs) { siginfo_t info; __u8 opcode[6]; @@ -252,7 +253,7 @@ void __kprobes illegal_op(struct pt_regs *regs) if (signal) do_trap(regs, signal, ILL_ILLOPC, "illegal operation"); } - +NOKPROBE_SYMBOL(illegal_op); #ifdef CONFIG_MATHEMU void specification_exception(struct pt_regs *regs) @@ -469,7 +470,7 @@ void space_switch_exception(struct pt_regs *regs) do_trap(regs, SIGILL, ILL_PRVOPC, "space switch event"); } -void __kprobes kernel_stack_overflow(struct pt_regs * regs) +void kernel_stack_overflow(struct pt_regs *regs) { bust_spinlocks(1); printk("Kernel stack overflow.\n"); @@ -477,6 +478,7 @@ void __kprobes kernel_stack_overflow(struct pt_regs * regs) bust_spinlocks(0); panic("Corrupt kernel stack, can't continue."); } +NOKPROBE_SYMBOL(kernel_stack_overflow); void __init trap_init(void) { diff --git a/arch/s390/mm/fault.c b/arch/s390/mm/fault.c index a2b81d6ce8a5..ca70fad2fc92 100644 --- a/arch/s390/mm/fault.c +++ b/arch/s390/mm/fault.c @@ -548,7 +548,7 @@ out: return fault; } -void __kprobes do_protection_exception(struct pt_regs *regs) +void do_protection_exception(struct pt_regs *regs) { unsigned long trans_exc_code; int fault; @@ -574,8 +574,9 @@ void __kprobes do_protection_exception(struct pt_regs *regs) if (unlikely(fault)) do_fault_error(regs, fault); } +NOKPROBE_SYMBOL(do_protection_exception); -void __kprobes do_dat_exception(struct pt_regs *regs) +void do_dat_exception(struct pt_regs *regs) { int access, fault; @@ -584,6 +585,7 @@ void __kprobes do_dat_exception(struct pt_regs *regs) if (unlikely(fault)) do_fault_error(regs, fault); } +NOKPROBE_SYMBOL(do_dat_exception); #ifdef CONFIG_PFAULT /* |