diff options
author | Harvey Harrison <harvey.harrison@gmail.com> | 2008-01-30 07:31:43 -0500 |
---|---|---|
committer | Ingo Molnar <mingo@elte.hu> | 2008-01-30 07:31:43 -0500 |
commit | e7b5e11eaaa8ef93a34e68016de51152d0d62911 (patch) | |
tree | dba4e39c71bbdd6ad2d6fc5c4f1e5c7819b04bd5 /arch/x86/kernel/kprobes.c | |
parent | ab4a574ef23cfa801a5078f7d7c2f2b76ecd6d91 (diff) |
x86: kprobes leftover cleanups
Eliminate __always_inline, all of these static functions are
only called once. Minor whitespace cleanup. Eliminate one
supefluous return at end of void function. Change the one
#ifndef to #ifdef to match the sense of the rest of the config
tests.
Signed-off-by: Harvey Harrison <harvey.harrison@gmail.com>
Acked-by: Masami Hiramatsu <mhiramat@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>
Diffstat (limited to 'arch/x86/kernel/kprobes.c')
-rw-r--r-- | arch/x86/kernel/kprobes.c | 14 |
1 files changed, 6 insertions, 8 deletions
diff --git a/arch/x86/kernel/kprobes.c b/arch/x86/kernel/kprobes.c index 7848bf74e2ab..521a469acaad 100644 --- a/arch/x86/kernel/kprobes.c +++ b/arch/x86/kernel/kprobes.c | |||
@@ -159,7 +159,7 @@ struct kretprobe_blackpoint kretprobe_blacklist[] = { | |||
159 | const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist); | 159 | const int kretprobe_blacklist_size = ARRAY_SIZE(kretprobe_blacklist); |
160 | 160 | ||
161 | /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/ | 161 | /* Insert a jump instruction at address 'from', which jumps to address 'to'.*/ |
162 | static __always_inline void set_jmp_op(void *from, void *to) | 162 | static void __kprobes set_jmp_op(void *from, void *to) |
163 | { | 163 | { |
164 | struct __arch_jmp_op { | 164 | struct __arch_jmp_op { |
165 | char op; | 165 | char op; |
@@ -174,7 +174,7 @@ static __always_inline void set_jmp_op(void *from, void *to) | |||
174 | * Returns non-zero if opcode is boostable. | 174 | * Returns non-zero if opcode is boostable. |
175 | * RIP relative instructions are adjusted at copying time in 64 bits mode | 175 | * RIP relative instructions are adjusted at copying time in 64 bits mode |
176 | */ | 176 | */ |
177 | static __always_inline int can_boost(kprobe_opcode_t *opcodes) | 177 | static int __kprobes can_boost(kprobe_opcode_t *opcodes) |
178 | { | 178 | { |
179 | kprobe_opcode_t opcode; | 179 | kprobe_opcode_t opcode; |
180 | kprobe_opcode_t *orig_opcodes = opcodes; | 180 | kprobe_opcode_t *orig_opcodes = opcodes; |
@@ -392,13 +392,13 @@ static void __kprobes set_current_kprobe(struct kprobe *p, struct pt_regs *regs, | |||
392 | kcb->kprobe_saved_flags &= ~X86_EFLAGS_IF; | 392 | kcb->kprobe_saved_flags &= ~X86_EFLAGS_IF; |
393 | } | 393 | } |
394 | 394 | ||
395 | static __always_inline void clear_btf(void) | 395 | static void __kprobes clear_btf(void) |
396 | { | 396 | { |
397 | if (test_thread_flag(TIF_DEBUGCTLMSR)) | 397 | if (test_thread_flag(TIF_DEBUGCTLMSR)) |
398 | wrmsr(MSR_IA32_DEBUGCTLMSR, 0, 0); | 398 | wrmsr(MSR_IA32_DEBUGCTLMSR, 0, 0); |
399 | } | 399 | } |
400 | 400 | ||
401 | static __always_inline void restore_btf(void) | 401 | static void __kprobes restore_btf(void) |
402 | { | 402 | { |
403 | if (test_thread_flag(TIF_DEBUGCTLMSR)) | 403 | if (test_thread_flag(TIF_DEBUGCTLMSR)) |
404 | wrmsr(MSR_IA32_DEBUGCTLMSR, current->thread.debugctlmsr, 0); | 404 | wrmsr(MSR_IA32_DEBUGCTLMSR, current->thread.debugctlmsr, 0); |
@@ -409,7 +409,7 @@ static void __kprobes prepare_singlestep(struct kprobe *p, struct pt_regs *regs) | |||
409 | clear_btf(); | 409 | clear_btf(); |
410 | regs->flags |= X86_EFLAGS_TF; | 410 | regs->flags |= X86_EFLAGS_TF; |
411 | regs->flags &= ~X86_EFLAGS_IF; | 411 | regs->flags &= ~X86_EFLAGS_IF; |
412 | /*single step inline if the instruction is an int3*/ | 412 | /* single step inline if the instruction is an int3 */ |
413 | if (p->opcode == BREAKPOINT_INSTRUCTION) | 413 | if (p->opcode == BREAKPOINT_INSTRUCTION) |
414 | regs->ip = (unsigned long)p->addr; | 414 | regs->ip = (unsigned long)p->addr; |
415 | else | 415 | else |
@@ -767,7 +767,7 @@ static void __kprobes resume_execution(struct kprobe *p, | |||
767 | case 0xe8: /* call relative - Fix return addr */ | 767 | case 0xe8: /* call relative - Fix return addr */ |
768 | *tos = orig_ip + (*tos - copy_ip); | 768 | *tos = orig_ip + (*tos - copy_ip); |
769 | break; | 769 | break; |
770 | #ifndef CONFIG_X86_64 | 770 | #ifdef CONFIG_X86_32 |
771 | case 0x9a: /* call absolute -- same as call absolute, indirect */ | 771 | case 0x9a: /* call absolute -- same as call absolute, indirect */ |
772 | *tos = orig_ip + (*tos - copy_ip); | 772 | *tos = orig_ip + (*tos - copy_ip); |
773 | goto no_change; | 773 | goto no_change; |
@@ -813,8 +813,6 @@ static void __kprobes resume_execution(struct kprobe *p, | |||
813 | 813 | ||
814 | no_change: | 814 | no_change: |
815 | restore_btf(); | 815 | restore_btf(); |
816 | |||
817 | return; | ||
818 | } | 816 | } |
819 | 817 | ||
820 | /* | 818 | /* |