ARM: Change the remaining shared kprobes/uprobes symbols to something generic

Any more ARM kprobes/uprobes symbols which have "kprobe" in the name must be
changed to the more generic "probes" or other non-kprobes specific symbol.
Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Jon Medhurst <tixy@linaro.org>

arch/arm/include/asm/probes.h

@@ -19,26 +19,25 @@
 #ifndef _ASM_PROBES_H
 #define _ASM_PROBES_H
 
-struct kprobe;
 typedef u32 probes_opcode_t;
 
 struct arch_specific_insn;
-typedef void (kprobe_insn_handler_t)(probes_opcode_t,
+typedef void (probes_insn_handler_t)(probes_opcode_t,
 				     struct arch_specific_insn *,
 				     struct pt_regs *);
 typedef unsigned long (probes_check_cc)(unsigned long);
-typedef void (kprobe_insn_singlestep_t)(probes_opcode_t,
+typedef void (probes_insn_singlestep_t)(probes_opcode_t,
 					struct arch_specific_insn *,
 					struct pt_regs *);
-typedef void (kprobe_insn_fn_t)(void);
+typedef void (probes_insn_fn_t)(void);
 
 /* Architecture specific copy of original instruction. */
 struct arch_specific_insn {
 	probes_opcode_t			*insn;
-	kprobe_insn_handler_t		*insn_handler;
+	probes_insn_handler_t		*insn_handler;
 	probes_check_cc			*insn_check_cc;
-	kprobe_insn_singlestep_t	*insn_singlestep;
-	kprobe_insn_fn_t		*insn_fn;
+	probes_insn_singlestep_t	*insn_singlestep;
+	probes_insn_fn_t		*insn_fn;
 };
 
 #endif

arch/arm/kernel/kprobes-common.c

@@ -127,7 +127,7 @@ enum probes_insn __kprobes
 kprobe_decode_ldmstm(probes_opcode_t insn, struct arch_specific_insn *asi,
 		const struct decode_header *h)
 {
-	kprobe_insn_handler_t *handler = 0;
+	probes_insn_handler_t *handler = 0;
 	unsigned reglist = insn & 0xffff;
 	int is_ldm = insn & 0x100000;
 	int rn = (insn >> 16) & 0xf;

arch/arm/kernel/kprobes-test.c

@@ -207,6 +207,8 @@
 #include <asm/opcodes.h>
 
 #include "kprobes.h"
+#include "probes-arm.h"
+#include "probes-thumb.h"
 #include "kprobes-test.h"
 
 
@@ -1610,7 +1612,7 @@ static int __init run_all_tests(void)
 		goto out;
 
 	pr_info("ARM instruction simulation\n");
-	ret = run_test_cases(kprobe_arm_test_cases, kprobe_decode_arm_table);
+	ret = run_test_cases(kprobe_arm_test_cases, probes_decode_arm_table);
 	if (ret)
 		goto out;
 
@@ -1633,13 +1635,13 @@ static int __init run_all_tests(void)
 
 	pr_info("16-bit Thumb instruction simulation\n");
 	ret = run_test_cases(kprobe_thumb16_test_cases,
-				kprobe_decode_thumb16_table);
+				probes_decode_thumb16_table);
 	if (ret)
 		goto out;
 
 	pr_info("32-bit Thumb instruction simulation\n");
 	ret = run_test_cases(kprobe_thumb32_test_cases,
-				kprobe_decode_thumb32_table);
+				probes_decode_thumb32_table);
 	if (ret)
 		goto out;
 #endif

arch/arm/kernel/kprobes.c

@@ -31,6 +31,8 @@
 #include <linux/bug.h>
 
 #include "kprobes.h"
+#include "probes-arm.h"
+#include "probes-thumb.h"
 #include "patch.h"
 
 #define MIN_STACK_SIZE(addr) 				\
@@ -69,10 +71,10 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 	if (is_wide_instruction(insn)) {
 		insn <<= 16;
 		insn |= ((u16 *)addr)[1];
-		decode_insn = thumb32_kprobe_decode_insn;
+		decode_insn = thumb32_probes_decode_insn;
 		actions = kprobes_t32_actions;
 	} else {
-		decode_insn = thumb16_kprobe_decode_insn;
+		decode_insn = thumb16_probes_decode_insn;
 		actions = kprobes_t16_actions;
 	}
 #else /* !CONFIG_THUMB2_KERNEL */
@@ -80,7 +82,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 	if (addr & 0x3)
 		return -EINVAL;
 	insn = *p->addr;
-	decode_insn = arm_kprobe_decode_insn;
+	decode_insn = arm_probes_decode_insn;
 	actions = kprobes_arm_actions;
 #endif
 
@@ -99,7 +101,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
 			p->ainsn.insn[is] = tmp_insn[is];
 		flush_insns(p->ainsn.insn,
 				sizeof(p->ainsn.insn[0]) * MAX_INSN_SIZE);
-		p->ainsn.insn_fn = (kprobe_insn_fn_t *)
+		p->ainsn.insn_fn = (probes_insn_fn_t *)
 					((uintptr_t)p->ainsn.insn | thumb);
 		break;
 

arch/arm/kernel/kprobes.h

@@ -19,6 +19,8 @@
 #ifndef _ARM_KERNEL_KPROBES_H
 #define _ARM_KERNEL_KPROBES_H
 
+#include "probes.h"
+
 /*
  * These undefined instructions must be unique and
  * reserved solely for kprobes' use.
@@ -27,8 +29,9 @@
 #define KPROBE_THUMB16_BREAKPOINT_INSTRUCTION	0xde18
 #define KPROBE_THUMB32_BREAKPOINT_INSTRUCTION	0xf7f0a018
 
-struct decode_header;
-union decode_action;
+enum probes_insn __kprobes
+kprobe_decode_ldmstm(kprobe_opcode_t insn, struct arch_specific_insn *asi,
+		const struct decode_header *h);
 
 typedef enum probes_insn (kprobe_decode_insn_t)(probes_opcode_t,
 						struct arch_specific_insn *,
@@ -36,21 +39,13 @@ typedef enum probes_insn (kprobe_decode_insn_t)(probes_opcode_t,
 
 #ifdef CONFIG_THUMB2_KERNEL
 
-enum probes_insn thumb16_kprobe_decode_insn(probes_opcode_t,
-					    struct arch_specific_insn *,
-					    const union decode_action *);
-enum probes_insn thumb32_kprobe_decode_insn(probes_opcode_t,
-					    struct arch_specific_insn *,
-					    const union decode_action *);
+extern const union decode_action kprobes_t32_actions[];
+extern const union decode_action kprobes_t16_actions[];
 
 #else /* !CONFIG_THUMB2_KERNEL */
 
-enum probes_insn arm_kprobe_decode_insn(probes_opcode_t,
-					struct arch_specific_insn *,
-					const union decode_action *);
+extern const union decode_action kprobes_arm_actions[];
 
 #endif
 
-#include "probes.h"
-
 #endif /* _ARM_KERNEL_KPROBES_H */

arch/arm/kernel/probes-arm.c

@@ -610,7 +610,7 @@ static const union decode_item arm_cccc_100x_table[] = {
 	DECODE_END
 };
 
-const union decode_item kprobe_decode_arm_table[] = {
+const union decode_item probes_decode_arm_table[] = {
 	/*
 	 * Unconditional instructions
 	 *			1111 xxxx xxxx xxxx xxxx xxxx xxxx xxxx
@@ -701,7 +701,7 @@ const union decode_item kprobe_decode_arm_table[] = {
 	DECODE_END
 };
 #ifdef CONFIG_ARM_KPROBES_TEST_MODULE
-EXPORT_SYMBOL_GPL(kprobe_decode_arm_table);
+EXPORT_SYMBOL_GPL(probes_decode_arm_table);
 #endif
 
 static void __kprobes arm_singlestep(probes_opcode_t insn,
@@ -724,11 +724,11 @@ static void __kprobes arm_singlestep(probes_opcode_t insn,
  *   should also be very rare.
  */
 enum probes_insn __kprobes
-arm_kprobe_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
+arm_probes_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
 		       const union decode_action *actions)
 {
 	asi->insn_singlestep = arm_singlestep;
 	asi->insn_check_cc = probes_condition_checks[insn>>28];
-	return kprobe_decode_insn(insn, asi, kprobe_decode_arm_table, false,
+	return probes_decode_insn(insn, asi, probes_decode_arm_table, false,
 				  actions);
 }

arch/arm/kernel/probes-arm.h

@@ -64,4 +64,10 @@ void __kprobes simulate_mrs(probes_opcode_t opcode,
 void __kprobes simulate_mov_ipsp(probes_opcode_t opcode,
 	struct arch_specific_insn *asi, struct pt_regs *regs);
 
+extern const union decode_item probes_decode_arm_table[];
+
+enum probes_insn arm_probes_decode_insn(probes_opcode_t,
+		struct arch_specific_insn *,
+		const union decode_action *actions);
+
 #endif

arch/arm/kernel/probes-thumb.c

 /*
- * arch/arm/kernel/kprobes-thumb.c
+ * arch/arm/kernel/probes-thumb.c
  *
  * Copyright (C) 2011 Jon Medhurst <tixy@yxit.co.uk>.
  *
@@ -552,7 +552,7 @@ static const union decode_item t32_table_1111_1011_1[] = {
 	DECODE_END
 };
 
-const union decode_item kprobe_decode_thumb32_table[] = {
+const union decode_item probes_decode_thumb32_table[] = {
 
 	/*
 	 * Load/store multiple instructions
@@ -641,7 +641,7 @@ const union decode_item kprobe_decode_thumb32_table[] = {
 	DECODE_END
 };
 #ifdef CONFIG_ARM_KPROBES_TEST_MODULE
-EXPORT_SYMBOL_GPL(kprobe_decode_thumb32_table);
+EXPORT_SYMBOL_GPL(probes_decode_thumb32_table);
 #endif
 
 static const union decode_item t16_table_1011[] = {
@@ -696,7 +696,7 @@ static const union decode_item t16_table_1011[] = {
 	DECODE_END
 };
 
-const union decode_item kprobe_decode_thumb16_table[] = {
+const union decode_item probes_decode_thumb16_table[] = {
 
 	/*
 	 * Shift (immediate), add, subtract, move, and compare
@@ -833,7 +833,7 @@ const union decode_item kprobe_decode_thumb16_table[] = {
 	DECODE_END
 };
 #ifdef CONFIG_ARM_KPROBES_TEST_MODULE
-EXPORT_SYMBOL_GPL(kprobe_decode_thumb16_table);
+EXPORT_SYMBOL_GPL(probes_decode_thumb16_table);
 #endif
 
 static unsigned long __kprobes thumb_check_cc(unsigned long cpsr)
@@ -862,21 +862,21 @@ static void __kprobes thumb32_singlestep(probes_opcode_t opcode,
 }
 
 enum probes_insn __kprobes
-thumb16_kprobe_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
+thumb16_probes_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
 			   const union decode_action *actions)
 {
 	asi->insn_singlestep = thumb16_singlestep;
 	asi->insn_check_cc = thumb_check_cc;
-	return kprobe_decode_insn(insn, asi, kprobe_decode_thumb16_table, true,
+	return probes_decode_insn(insn, asi, probes_decode_thumb16_table, true,
 				  actions);
 }
 
 enum probes_insn __kprobes
-thumb32_kprobe_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
+thumb32_probes_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
 			   const union decode_action *actions)
 {
 	asi->insn_singlestep = thumb32_singlestep;
 	asi->insn_check_cc = thumb_check_cc;
-	return kprobe_decode_insn(insn, asi, kprobe_decode_thumb32_table, true,
+	return probes_decode_insn(insn, asi, probes_decode_thumb32_table, true,
 				  actions);
 }

arch/arm/kernel/probes-thumb.h

@@ -84,4 +84,14 @@ enum probes_t16_action {
 	NUM_PROBES_T16_ACTIONS
 };
 
+extern const union decode_item probes_decode_thumb32_table[];
+extern const union decode_item probes_decode_thumb16_table[];
+
+enum probes_insn __kprobes
+thumb16_probes_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
+		const union decode_action *actions);
+enum probes_insn __kprobes
+thumb32_probes_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
+		const union decode_action *actions);
+
 #endif

arch/arm/kernel/probes.c

@@ -340,7 +340,7 @@ static const int decode_struct_sizes[NUM_DECODE_TYPES] = {
 };
 
 /*
- * kprobe_decode_insn operates on data tables in order to decode an ARM
+ * probes_decode_insn operates on data tables in order to decode an ARM
  * architecture instruction onto which a kprobe has been placed.
  *
  * These instruction decoding tables are a concatenation of entries each
@@ -383,7 +383,7 @@ static const int decode_struct_sizes[NUM_DECODE_TYPES] = {
  *
  */
 int __kprobes
-kprobe_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
+probes_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
 		   const union decode_item *table, bool thumb,
 		   const union decode_action *actions)
 {

arch/arm/kernel/probes.h

@@ -21,11 +21,12 @@
 
 #include <linux/types.h>
 #include <linux/stddef.h>
-#include <linux/kprobes.h>
-#include "kprobes.h"
+#include <asm/probes.h>
 
 void __init arm_probes_decode_init(void);
 
+extern probes_check_cc * const probes_condition_checks[16];
+
 #if __LINUX_ARM_ARCH__ >= 7
 
 /* str_pc_offset is architecturally defined from ARMv7 onwards */
@@ -40,7 +41,6 @@ void __init find_str_pc_offset(void);
 
 #endif
 
-struct decode_header;
 
 /*
  * Update ITSTATE after normal execution of an IT block instruction.
@@ -133,15 +133,6 @@ static inline void __kprobes alu_write_pc(long pcv, struct pt_regs *regs)
 }
 
 
-void __kprobes probes_simulate_nop(probes_opcode_t, struct arch_specific_insn *,
-		struct pt_regs *regs);
-void __kprobes probes_emulate_none(probes_opcode_t, struct arch_specific_insn *,
-		struct pt_regs *regs);
-
-enum probes_insn __kprobes
-kprobe_decode_ldmstm(probes_opcode_t insn, struct arch_specific_insn *asi,
-		const struct decode_header *h);
-
 /*
  * Test if load/store instructions writeback the address register.
  * if P (bit 24) == 0 or W (bit 21) == 1
@@ -150,7 +141,7 @@ kprobe_decode_ldmstm(probes_opcode_t insn, struct arch_specific_insn *asi,
 
 /*
  * The following definitions and macros are used to build instruction
- * decoding tables for use by kprobe_decode_insn.
+ * decoding tables for use by probes_decode_insn.
  *
  * These tables are a concatenation of entries each of which consist of one of
  * the decode_* structs. All of the fields in every type of decode structure
@@ -313,12 +304,13 @@ union decode_item {
 	int			action;
 };
 
+struct decode_header;
 typedef enum probes_insn (probes_custom_decode_t)(probes_opcode_t,
 						  struct arch_specific_insn *,
 						  const struct decode_header *);
 
 union decode_action {
-	kprobe_insn_handler_t	*handler;
+	probes_insn_handler_t	*handler;
 	probes_custom_decode_t	*decoder;
 };
 
@@ -404,22 +396,12 @@ struct decode_reject {
 #define DECODE_REJECT(_mask, _value)				\
 	DECODE_HEADER(DECODE_TYPE_REJECT, _mask, _value, 0)
 
+probes_insn_handler_t probes_simulate_nop;
+probes_insn_handler_t probes_emulate_none;
 
-#ifdef CONFIG_THUMB2_KERNEL
-extern const union decode_item kprobe_decode_thumb16_table[];
-extern const union decode_item kprobe_decode_thumb32_table[];
-extern const union decode_action kprobes_t32_actions[];
-extern const union decode_action kprobes_t16_actions[];
-#else
-extern const union decode_item kprobe_decode_arm_table[];
-extern const union decode_action kprobes_arm_actions[];
-#endif
-
-extern probes_check_cc * const probes_condition_checks[16];
-
-
-int kprobe_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
-		       const union decode_item *table, bool thumb16,
-		       const union decode_action *actions);
+int __kprobes
+probes_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
+		const union decode_item *table, bool thumb,
+		const union decode_action *actions);
 
 #endif