Commit 9326638c authored by Masami Hiramatsu's avatar Masami Hiramatsu Committed by Ingo Molnar
Browse files

kprobes, x86: Use NOKPROBE_SYMBOL() instead of __kprobes annotation



Use NOKPROBE_SYMBOL macro for protecting functions
from kprobes instead of __kprobes annotation under
arch/x86.

This applies nokprobe_inline annotation for some cases,
because NOKPROBE_SYMBOL() will inhibit inlining by
referring the symbol address.

This just folds a bunch of previous NOKPROBE_SYMBOL()
cleanup patches for x86 to one patch.
Signed-off-by: default avatarMasami Hiramatsu <masami.hiramatsu.pt@hitachi.com>
Link: http://lkml.kernel.org/r/20140417081814.26341.51656.stgit@ltc230.yrl.intra.hitachi.co.jp


Cc: Andrew Morton <akpm@linux-foundation.org>
Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
Cc: Borislav Petkov <bp@suse.de>
Cc: Dave Hansen <dave.hansen@linux.intel.com>
Cc: Fernando Luis Vázquez Cao <fernando_b1@lab.ntt.co.jp>
Cc: Gleb Natapov <gleb@redhat.com>
Cc: Jason Wang <jasowang@redhat.com>
Cc: Jesper Nilsson <jesper.nilsson@axis.com>
Cc: Jiri Kosina <jkosina@suse.cz>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Jiri Slaby <jslaby@suse.cz>
Cc: Johannes Weiner <hannes@cmpxchg.org>
Cc: Jonathan Lebon <jlebon@redhat.com>
Cc: Kees Cook <keescook@chromium.org>
Cc: Matt Fleming <matt.fleming@intel.com>
Cc: Michel Lespinasse <walken@google.com>
Cc: Paolo Bonzini <pbonzini@redhat.com>
Cc: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
Cc: Paul Gortmaker <paul.gortmaker@windriver.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Raghavendra K T <raghavendra.kt@linux.vnet.ibm.com>
Cc: Rusty Russell <rusty@rustcorp.com.au>
Cc: Seiji Aguchi <seiji.aguchi@hds.com>
Cc: Srivatsa Vaddagiri <vatsa@linux.vnet.ibm.com>
Cc: Tejun Heo <tj@kernel.org>
Cc: Vineet Gupta <vgupta@synopsys.com>
Signed-off-by: default avatarIngo Molnar <mingo@kernel.org>
parent 9c54b616
......@@ -68,7 +68,7 @@ dotraplinkage void do_segment_not_present(struct pt_regs *, long);
dotraplinkage void do_stack_segment(struct pt_regs *, long);
#ifdef CONFIG_X86_64
dotraplinkage void do_double_fault(struct pt_regs *, long);
asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *);
asmlinkage struct pt_regs *sync_regs(struct pt_regs *);
#endif
dotraplinkage void do_general_protection(struct pt_regs *, long);
dotraplinkage void do_page_fault(struct pt_regs *, unsigned long);
......
......@@ -60,7 +60,7 @@ void arch_trigger_all_cpu_backtrace(void)
smp_mb__after_clear_bit();
}
static int __kprobes
static int
arch_trigger_all_cpu_backtrace_handler(unsigned int cmd, struct pt_regs *regs)
{
int cpu;
......@@ -80,6 +80,7 @@ arch_trigger_all_cpu_backtrace_handler(unsigned int cmd, struct pt_regs *regs)
return NMI_DONE;
}
NOKPROBE_SYMBOL(arch_trigger_all_cpu_backtrace_handler);
static int __init register_trigger_all_cpu_backtrace(void)
{
......
......@@ -1292,7 +1292,7 @@ void perf_events_lapic_init(void)
apic_write(APIC_LVTPC, APIC_DM_NMI);
}
static int __kprobes
static int
perf_event_nmi_handler(unsigned int cmd, struct pt_regs *regs)
{
u64 start_clock;
......@@ -1310,6 +1310,7 @@ perf_event_nmi_handler(unsigned int cmd, struct pt_regs *regs)
return ret;
}
NOKPROBE_SYMBOL(perf_event_nmi_handler);
struct event_constraint emptyconstraint;
struct event_constraint unconstrained;
......
......@@ -593,7 +593,7 @@ static int perf_ibs_handle_irq(struct perf_ibs *perf_ibs, struct pt_regs *iregs)
return 1;
}
static int __kprobes
static int
perf_ibs_nmi_handler(unsigned int cmd, struct pt_regs *regs)
{
int handled = 0;
......@@ -606,6 +606,7 @@ perf_ibs_nmi_handler(unsigned int cmd, struct pt_regs *regs)
return handled;
}
NOKPROBE_SYMBOL(perf_ibs_nmi_handler);
static __init int perf_ibs_pmu_init(struct perf_ibs *perf_ibs, char *name)
{
......
......@@ -200,7 +200,7 @@ static arch_spinlock_t die_lock = __ARCH_SPIN_LOCK_UNLOCKED;
static int die_owner = -1;
static unsigned int die_nest_count;
unsigned __kprobes long oops_begin(void)
unsigned long oops_begin(void)
{
int cpu;
unsigned long flags;
......@@ -223,8 +223,9 @@ unsigned __kprobes long oops_begin(void)
return flags;
}
EXPORT_SYMBOL_GPL(oops_begin);
NOKPROBE_SYMBOL(oops_begin);
void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
void oops_end(unsigned long flags, struct pt_regs *regs, int signr)
{
if (regs && kexec_should_crash(current))
crash_kexec(regs);
......@@ -247,8 +248,9 @@ void __kprobes oops_end(unsigned long flags, struct pt_regs *regs, int signr)
panic("Fatal exception");
do_exit(signr);
}
NOKPROBE_SYMBOL(oops_end);
int __kprobes __die(const char *str, struct pt_regs *regs, long err)
int __die(const char *str, struct pt_regs *regs, long err)
{
#ifdef CONFIG_X86_32
unsigned short ss;
......@@ -291,6 +293,7 @@ int __kprobes __die(const char *str, struct pt_regs *regs, long err)
#endif
return 0;
}
NOKPROBE_SYMBOL(__die);
/*
* This is gone through when something in the kernel has done something bad
......
......@@ -112,7 +112,8 @@ struct kretprobe_blackpoint kretprobe_blacklist[] = {
const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist);
static void __kprobes __synthesize_relative_insn(void *from, void *to, u8 op)
static nokprobe_inline void
__synthesize_relative_insn(void *from, void *to, u8 op)
{
struct __arch_relative_insn {
u8 op;
......@@ -125,21 +126,23 @@ static void __kprobes __synthesize_relative_insn(void *from, void *to, u8 op)
}
/* Insert a jump instruction at address 'from', which jumps to address 'to'.*/
void __kprobes synthesize_reljump(void *from, void *to)
void synthesize_reljump(void *from, void *to)
{
__synthesize_relative_insn(from, to, RELATIVEJUMP_OPCODE);
}
NOKPROBE_SYMBOL(synthesize_reljump);
/* Insert a call instruction at address 'from', which calls address 'to'.*/
void __kprobes synthesize_relcall(void *from, void *to)
void synthesize_relcall(void *from, void *to)
{
__synthesize_relative_insn(from, to, RELATIVECALL_OPCODE);
}
NOKPROBE_SYMBOL(synthesize_relcall);
/*
* Skip the prefixes of the instruction.
*/
static kprobe_opcode_t *__kprobes skip_prefixes(kprobe_opcode_t *insn)
static kprobe_opcode_t *skip_prefixes(kprobe_opcode_t *insn)
{
insn_attr_t attr;
......@@ -154,6 +157,7 @@ static kprobe_opcode_t *__kprobes skip_prefixes(kprobe_opcode_t *insn)
#endif
return insn;
}
NOKPROBE_SYMBOL(skip_prefixes);
/*
* Returns non-zero if opcode is boostable.
......@@ -425,7 +429,8 @@ void arch_remove_kprobe(struct kprobe *p)
}
}
static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
static nokprobe_inline void
save_previous_kprobe(struct kprobe_ctlblk *kcb)
{
kcb->prev_kprobe.kp = kprobe_running();
kcb->prev_kprobe.status = kcb->kprobe_status;
......@@ -433,7 +438,8 @@ static void __kprobes save_previous_kprobe(struct kprobe_ctlblk *kcb)
kcb->prev_kprobe.saved_flags = kcb->kprobe_saved_flags;
}
static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
static nokprobe_inline void
restore_previous_kprobe(struct kprobe_ctlblk *kcb)
{
__this_cpu_write(current_kprobe, kcb->prev_kprobe.kp);
kcb->kprobe_status = kcb->prev_kprobe.status;
......@@ -441,8 +447,9 @@ static void __kprobes restore_previous_kprobe(struct kprobe_ctlblk *kcb)
kcb->kprobe_saved_flags = kcb->prev_kprobe.saved_flags;
}
static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb)
static nokprobe_inline void
set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb)
{
__this_cpu_write(current_kprobe, p);
kcb->kprobe_saved_flags = kcb->kprobe_old_flags
......@@ -451,7 +458,7 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs,
kcb->kprobe_saved_flags &= ~X86_EFLAGS_IF;
}
static void __kprobes clear_btf(void)
static nokprobe_inline void clear_btf(void)
{
if (test_thread_flag(TIF_BLOCKSTEP)) {
unsigned long debugctl = get_debugctlmsr();
......@@ -461,7 +468,7 @@ static void __kprobes clear_btf(void)
}
}
static void __kprobes restore_btf(void)
static nokprobe_inline void restore_btf(void)
{
if (test_thread_flag(TIF_BLOCKSTEP)) {
unsigned long debugctl = get_debugctlmsr();
......@@ -471,8 +478,7 @@ static void __kprobes restore_btf(void)
}
}
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)
{
unsigned long *sara = stack_addr(regs);
......@@ -481,9 +487,10 @@ arch_prepare_kretprobe(struct kretprobe_instance *ri, struct pt_regs *regs)
/* Replace the return addr with trampoline addr */
*sara = (unsigned long) &kretprobe_trampoline;
}
NOKPROBE_SYMBOL(arch_prepare_kretprobe);
static void __kprobes
setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb, int reenter)
static void setup_singlestep(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb, int reenter)
{
if (setup_detour_execution(p, regs, reenter))
return;
......@@ -519,14 +526,15 @@ setup_singlestep(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k
else
regs->ip = (unsigned long)p->ainsn.insn;
}
NOKPROBE_SYMBOL(setup_singlestep);
/*
* We have reentered the kprobe_handler(), since another probe was hit while
* within the handler. We save the original kprobes variables and just single
* step on the instruction of the new probe without calling any user handlers.
*/
static int __kprobes
reenter_kprobe(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb)
static int reenter_kprobe(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb)
{
switch (kcb->kprobe_status) {
case KPROBE_HIT_SSDONE:
......@@ -554,12 +562,13 @@ reenter_kprobe(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb
return 1;
}
NOKPROBE_SYMBOL(reenter_kprobe);
/*
* Interrupts are disabled on entry as trap3 is an interrupt gate and they
* remain disabled throughout this function.
*/
int __kprobes kprobe_int3_handler(struct pt_regs *regs)
int kprobe_int3_handler(struct pt_regs *regs)
{
kprobe_opcode_t *addr;
struct kprobe *p;
......@@ -622,12 +631,13 @@ int __kprobes kprobe_int3_handler(struct pt_regs *regs)
preempt_enable_no_resched();
return 0;
}
NOKPROBE_SYMBOL(kprobe_int3_handler);
/*
* When a retprobed function returns, this code saves registers and
* calls trampoline_handler() runs, which calls the kretprobe's handler.
*/
static void __used __kprobes kretprobe_trampoline_holder(void)
static void __used kretprobe_trampoline_holder(void)
{
asm volatile (
".global kretprobe_trampoline\n"
......@@ -658,11 +668,13 @@ static void __used __kprobes kretprobe_trampoline_holder(void)
#endif
" ret\n");
}
NOKPROBE_SYMBOL(kretprobe_trampoline_holder);
NOKPROBE_SYMBOL(kretprobe_trampoline);
/*
* Called from kretprobe_trampoline
*/
__visible __used __kprobes void *trampoline_handler(struct pt_regs *regs)
__visible __used void *trampoline_handler(struct pt_regs *regs)
{
struct kretprobe_instance *ri = NULL;
struct hlist_head *head, empty_rp;
......@@ -748,6 +760,7 @@ __visible __used __kprobes void *trampoline_handler(struct pt_regs *regs)
}
return (void *)orig_ret_address;
}
NOKPROBE_SYMBOL(trampoline_handler);
/*
* Called after single-stepping. p->addr is the address of the
......@@ -776,8 +789,8 @@ __visible __used __kprobes void *trampoline_handler(struct pt_regs *regs)
* jump instruction after the copied instruction, that jumps to the next
* instruction after the probepoint.
*/
static void __kprobes
resume_execution(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *kcb)
static void resume_execution(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb)
{
unsigned long *tos = stack_addr(regs);
unsigned long copy_ip = (unsigned long)p->ainsn.insn;
......@@ -852,12 +865,13 @@ resume_execution(struct kprobe *p, struct pt_regs *regs, struct kprobe_ctlblk *k
no_change:
restore_btf();
}
NOKPROBE_SYMBOL(resume_execution);
/*
* Interrupts are disabled on entry as trap1 is an interrupt gate and they
* remain disabled throughout this function.
*/
int __kprobes kprobe_debug_handler(struct pt_regs *regs)
int kprobe_debug_handler(struct pt_regs *regs)
{
struct kprobe *cur = kprobe_running();
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
......@@ -892,8 +906,9 @@ int __kprobes kprobe_debug_handler(struct pt_regs *regs)
return 1;
}
NOKPROBE_SYMBOL(kprobe_debug_handler);
int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
int kprobe_fault_handler(struct pt_regs *regs, int trapnr)
{
struct kprobe *cur = kprobe_running();
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
......@@ -950,12 +965,13 @@ int __kprobes kprobe_fault_handler(struct pt_regs *regs, int trapnr)
return 0;
}
NOKPROBE_SYMBOL(kprobe_fault_handler);
/*
* Wrapper routine 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 = data;
int ret = NOTIFY_DONE;
......@@ -975,8 +991,9 @@ kprobe_exceptions_notify(struct notifier_block *self, unsigned long val, void *d
}
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);
unsigned long addr;
......@@ -1000,8 +1017,9 @@ int __kprobes setjmp_pre_handler(struct kprobe *p, struct pt_regs *regs)
regs->ip = (unsigned long)(jp->entry);
return 1;
}
NOKPROBE_SYMBOL(setjmp_pre_handler);
void __kprobes jprobe_return(void)
void jprobe_return(void)
{
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
......@@ -1017,8 +1035,10 @@ void __kprobes jprobe_return(void)
" nop \n"::"b"
(kcb->jprobe_saved_sp):"memory");
}
NOKPROBE_SYMBOL(jprobe_return);
NOKPROBE_SYMBOL(jprobe_return_end);
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();
u8 *addr = (u8 *) (regs->ip - 1);
......@@ -1046,6 +1066,7 @@ int __kprobes longjmp_break_handler(struct kprobe *p, struct pt_regs *regs)
}
return 0;
}
NOKPROBE_SYMBOL(longjmp_break_handler);
bool arch_within_kprobe_blacklist(unsigned long addr)
{
......
......@@ -25,8 +25,9 @@
#include "common.h"
static int __skip_singlestep(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb)
static nokprobe_inline
int __skip_singlestep(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb)
{
/*
* Emulate singlestep (and also recover regs->ip)
......@@ -41,18 +42,19 @@ static int __skip_singlestep(struct kprobe *p, struct pt_regs *regs,
return 1;
}
int __kprobes skip_singlestep(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb)
int skip_singlestep(struct kprobe *p, struct pt_regs *regs,
struct kprobe_ctlblk *kcb)
{
if (kprobe_ftrace(p))
return __skip_singlestep(p, regs, kcb);
else
return 0;
}
NOKPROBE_SYMBOL(skip_singlestep);
/* Ftrace callback handler for kprobes */
void __kprobes kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *ops, struct pt_regs *regs)
void kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
struct ftrace_ops *ops, struct pt_regs *regs)
{
struct kprobe *p;
struct kprobe_ctlblk *kcb;
......@@ -84,6 +86,7 @@ void __kprobes kprobe_ftrace_handler(unsigned long ip, unsigned long parent_ip,
end:
local_irq_restore(flags);
}
NOKPROBE_SYMBOL(kprobe_ftrace_handler);
int arch_prepare_kprobe_ftrace(struct kprobe *p)
{
......
......@@ -138,7 +138,8 @@ asm (
#define INT3_SIZE sizeof(kprobe_opcode_t)
/* Optimized kprobe call back function: called from optinsn */
static void __kprobes optimized_callback(struct optimized_kprobe *op, struct pt_regs *regs)
static void
optimized_callback(struct optimized_kprobe *op, struct pt_regs *regs)
{
struct kprobe_ctlblk *kcb = get_kprobe_ctlblk();
unsigned long flags;
......@@ -168,6 +169,7 @@ static void __kprobes optimized_callback(struct optimized_kprobe *op, struct pt_
}
local_irq_restore(flags);
}
NOKPROBE_SYMBOL(optimized_callback);
static int copy_optimized_instructions(u8 *dest, u8 *src)
{
......@@ -424,8 +426,7 @@ extern void arch_unoptimize_kprobes(struct list_head *oplist,
}
}
int __kprobes
setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter)
int setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter)
{
struct optimized_kprobe *op;
......@@ -441,3 +442,4 @@ setup_detour_execution(struct kprobe *p, struct pt_regs *regs, int reenter)
}
return 0;
}
NOKPROBE_SYMBOL(setup_detour_execution);
......@@ -251,8 +251,9 @@ u32 kvm_read_and_reset_pf_reason(void)
return reason;
}
EXPORT_SYMBOL_GPL(kvm_read_and_reset_pf_reason);
NOKPROBE_SYMBOL(kvm_read_and_reset_pf_reason);
dotraplinkage void __kprobes
dotraplinkage void
do_async_page_fault(struct pt_regs *regs, unsigned long error_code)
{
enum ctx_state prev_state;
......@@ -276,6 +277,7 @@ do_async_page_fault(struct pt_regs *regs, unsigned long error_code)
break;
}
}
NOKPROBE_SYMBOL(do_async_page_fault);
static void __init paravirt_ops_setup(void)
{
......
......@@ -110,7 +110,7 @@ static void nmi_max_handler(struct irq_work *w)
a->handler, whole_msecs, decimal_msecs);
}
static int __kprobes nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
static int nmi_handle(unsigned int type, struct pt_regs *regs, bool b2b)
{
struct nmi_desc *desc = nmi_to_desc(type);
struct nmiaction *a;
......@@ -146,6 +146,7 @@ static int __kprobes nmi_handle(unsigned int type, struct pt_regs *regs, bool b2
/* return total number of NMI events handled */
return handled;
}
NOKPROBE_SYMBOL(nmi_handle);
int __register_nmi_handler(unsigned int type, struct nmiaction *action)
{
......@@ -208,7 +209,7 @@ void unregister_nmi_handler(unsigned int type, const char *name)
}
EXPORT_SYMBOL_GPL(unregister_nmi_handler);
static __kprobes void
static void
pci_serr_error(unsigned char reason, struct pt_regs *regs)
{
/* check to see if anyone registered against these types of errors */
......@@ -238,8 +239,9 @@ pci_serr_error(unsigned char reason, struct pt_regs *regs)
reason = (reason & NMI_REASON_CLEAR_MASK) | NMI_REASON_CLEAR_SERR;
outb(reason, NMI_REASON_PORT);
}
NOKPROBE_SYMBOL(pci_serr_error);
static __kprobes void
static void
io_check_error(unsigned char reason, struct pt_regs *regs)
{
unsigned long i;
......@@ -269,8 +271,9 @@ io_check_error(unsigned char reason, struct pt_regs *regs)
reason &= ~NMI_REASON_CLEAR_IOCHK;
outb(reason, NMI_REASON_PORT);
}
NOKPROBE_SYMBOL(io_check_error);
static __kprobes void
static void
unknown_nmi_error(unsigned char reason, struct pt_regs *regs)
{
int handled;
......@@ -298,11 +301,12 @@ unknown_nmi_error(unsigned char reason, struct pt_regs *regs)
pr_emerg("Dazed and confused, but trying to continue\n");
}
NOKPROBE_SYMBOL(unknown_nmi_error);
static DEFINE_PER_CPU(bool, swallow_nmi);
static DEFINE_PER_CPU(unsigned long, last_nmi_rip);
static __kprobes void default_do_nmi(struct pt_regs *regs)
static void default_do_nmi(struct pt_regs *regs)
{
unsigned char reason = 0;
int handled;
......@@ -401,6 +405,7 @@ static __kprobes void default_do_nmi(struct pt_regs *regs)
else
unknown_nmi_error(reason, regs);
}
NOKPROBE_SYMBOL(default_do_nmi);
/*
* NMIs can hit breakpoints which will cause it to lose its
......@@ -520,7 +525,7 @@ static inline void nmi_nesting_postprocess(void)
}
#endif
dotraplinkage notrace __kprobes void
dotraplinkage notrace void
do_nmi(struct pt_regs *regs, long error_code)
{
nmi_nesting_preprocess(regs);
......@@ -537,6 +542,7 @@ do_nmi(struct pt_regs *regs, long error_code)
/* On i386, may loop back to preprocess */
nmi_nesting_postprocess();
}
NOKPROBE_SYMBOL(do_nmi);
void stop_nmi(void)
{
......
......@@ -106,7 +106,7 @@ static inline void preempt_conditional_cli(struct pt_regs *regs)
preempt_count_dec();
}
static int __kprobes
static nokprobe_inline int
do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
struct pt_regs *regs, long error_code)
{
......@@ -136,7 +136,7 @@ do_trap_no_signal(struct task_struct *tsk, int trapnr, char *str,
return -1;
}
static void __kprobes
static void
do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
long error_code, siginfo_t *info)
{
......@@ -173,6 +173,7 @@ do_trap(int trapnr, int signr, char *str, struct pt_regs *regs,
else
force_sig(signr, tsk);
}
NOKPROBE_SYMBOL(do_trap);
#define DO_ERROR(trapnr, signr, str, name) \
dotraplinkage void do_##name(struct pt_regs *regs, long error_code) \
......@@ -263,7 +264,7 @@ dotraplinkage void do_double_fault(struct pt_regs *regs, long error_code)
}
#endif
dotraplinkage void __kprobes
dotraplinkage void
do_general_protection(struct pt_regs *regs, long error_code)
{
struct task_struct *tsk;
......@@ -309,9 +310,10 @@ do_general_protection(struct pt_regs *regs, long error_code)
exit:
exception_exit(prev_state);
}
NOKPROBE_SYMBOL(do_general_protection);
/* May run on IST stack. */
dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_code)
dotraplinkage void notrace do_int3(struct pt_regs *regs, long error_code)
{
enum ctx_state prev_state;
......@@ -355,6 +357,7 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co
exit:
exception_exit(prev_state);
}
NOKPROBE_SYMBOL(do_int3);
#ifdef CONFIG_X86_64
/*
......@@ -362,7 +365,7 @@ dotraplinkage void __kprobes notrace do_int3(struct pt_regs *regs, long error_co
* for scheduling or signal handling. The actual stack switch is done in
* entry.S
*/
asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs)
asmlinkage struct pt_regs *sync_regs(struct pt_regs *eregs)
{
struct pt_regs *regs = eregs;
/* Did already sync */
......@@ -381,6 +384,7 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs)
*regs = *eregs;
return regs;
}
NOKPROBE_SYMBOL(sync_regs);
#endif
/*
......@@ -407,7 +411,7 @@ asmlinkage __kprobes struct pt_regs *sync_regs(struct pt_regs *eregs)
*
* May run on IST stack.
*/
dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
dotraplinkage void do_debug(struct pt_regs *regs, long error_code)
{
struct task_struct *tsk = current;
enum ctx_state prev_state;
......@@ -491,6 +495,7 @@ dotraplinkage void __kprobes do_debug(struct pt_regs *regs, long error_code)
exit:
exception_exit(prev_state);
}
NOKPROBE_SYMBOL(do_debug);