From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754861AbaAWUHv (ORCPT ); Thu, 23 Jan 2014 15:07:51 -0500 Received: from mail-qa0-f45.google.com ([209.85.216.45]:35006 "EHLO mail-qa0-f45.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S932095AbaAWUGU (ORCPT ); Thu, 23 Jan 2014 15:06:20 -0500 From: David Long To: linux-arm-kernel@lists.infradead.org, Russell King Cc: Rabin Vincent , "Jon Medhurst (Tixy)" , Oleg Nesterov , Srikar Dronamraju , Ingo Molnar , Masami Hiramatsu , Ananth N Mavinakayanahalli , Anil S Keshavamurthy , , Peter Zijlstra , Paul Mackerras , Arnaldo Carvalho de Melo , linux-kernel@vger.kernel.org Subject: [PATCH v5 12/16] ARM: Change the remaining shared kprobes/uprobes symbols to something generic Date: Thu, 23 Jan 2014 15:05:55 -0500 Message-Id: <1390507559-4697-13-git-send-email-dave.long@linaro.org> X-Mailer: git-send-email 1.8.1.2 In-Reply-To: <1390507559-4697-1-git-send-email-dave.long@linaro.org> References: <1390507559-4697-1-git-send-email-dave.long@linaro.org> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org From: "David A. Long" 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 --- arch/arm/include/asm/probes.h | 13 ++++++------- arch/arm/kernel/kprobes-common.c | 2 +- arch/arm/kernel/kprobes-test.c | 8 +++++--- arch/arm/kernel/kprobes.c | 10 ++++++---- arch/arm/kernel/kprobes.h | 21 ++++++++------------ arch/arm/kernel/probes-arm.c | 8 ++++---- arch/arm/kernel/probes-arm.h | 6 ++++++ arch/arm/kernel/probes-thumb.c | 18 ++++++++--------- arch/arm/kernel/probes-thumb.h | 10 ++++++++++ arch/arm/kernel/probes.c | 4 ++-- arch/arm/kernel/probes.h | 42 ++++++++++++---------------------------- 11 files changed, 69 insertions(+), 73 deletions(-) diff --git a/arch/arm/include/asm/probes.h b/arch/arm/include/asm/probes.h index c4acf6c..c37252c 100644 --- a/arch/arm/include/asm/probes.h +++ b/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 diff --git a/arch/arm/kernel/kprobes-common.c b/arch/arm/kernel/kprobes-common.c index dc3af4c..ea2838b 100644 --- a/arch/arm/kernel/kprobes-common.c +++ b/arch/arm/kernel/kprobes-common.c @@ -128,7 +128,7 @@ enum probes_insn __kprobes kprobe_decode_ldmstm(probes_opcode_t insn, struct arch_specific_insn *asi, 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; diff --git a/arch/arm/kernel/kprobes-test.c b/arch/arm/kernel/kprobes-test.c index 65230b2..a1f155c 100644 --- a/arch/arm/kernel/kprobes-test.c +++ b/arch/arm/kernel/kprobes-test.c @@ -205,6 +205,8 @@ #include #include "kprobes.h" +#include "probes-arm.h" +#include "probes-thumb.h" #include "kprobes-test.h" @@ -1616,7 +1618,7 @@ 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; @@ -1639,13 +1641,13 @@ 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 diff --git a/arch/arm/kernel/kprobes.c b/arch/arm/kernel/kprobes.c index 3e3a3e0..db040ad 100644 --- a/arch/arm/kernel/kprobes.c +++ b/arch/arm/kernel/kprobes.c @@ -29,6 +29,8 @@ #include #include "kprobes.h" +#include "probes-arm.h" +#include "probes-thumb.h" #include "patch.h" #define MIN_STACK_SIZE(addr) \ @@ -67,10 +69,10 @@ 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 */ @@ -78,7 +80,7 @@ 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 @@ -97,7 +99,7 @@ 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; diff --git a/arch/arm/kernel/kprobes.h b/arch/arm/kernel/kprobes.h index 3684fc9..f612e8e 100644 --- a/arch/arm/kernel/kprobes.h +++ b/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, + 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 */ diff --git a/arch/arm/kernel/probes-arm.c b/arch/arm/kernel/probes-arm.c index d377cc4..0faa4b2 100644 --- a/arch/arm/kernel/probes-arm.c +++ b/arch/arm/kernel/probes-arm.c @@ -608,7 +608,7 @@ 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 @@ -699,7 +699,7 @@ 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, @@ -722,11 +722,11 @@ 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); } diff --git a/arch/arm/kernel/probes-arm.h b/arch/arm/kernel/probes-arm.h index 9a9d379d..7a5cce4 100644 --- a/arch/arm/kernel/probes-arm.h +++ b/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 diff --git a/arch/arm/kernel/probes-thumb.c b/arch/arm/kernel/probes-thumb.c index 9b04aeb..69d4de5 100644 --- a/arch/arm/kernel/probes-thumb.c +++ b/arch/arm/kernel/probes-thumb.c @@ -1,5 +1,5 @@ /* - * arch/arm/kernel/kprobes-thumb.c + * arch/arm/kernel/probes-thumb.c * * Copyright (C) 2011 Jon Medhurst . * @@ -551,7 +551,7 @@ 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 @@ -640,7 +640,7 @@ 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[] = { @@ -695,7 +695,7 @@ 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 @@ -832,7 +832,7 @@ 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) @@ -861,21 +861,21 @@ 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); } diff --git a/arch/arm/kernel/probes-thumb.h b/arch/arm/kernel/probes-thumb.h index 4589072..b26411e 100644 --- a/arch/arm/kernel/probes-thumb.h +++ b/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 diff --git a/arch/arm/kernel/probes.c b/arch/arm/kernel/probes.c index 2f6629f..492c5fd 100644 --- a/arch/arm/kernel/probes.c +++ b/arch/arm/kernel/probes.c @@ -336,7 +336,7 @@ 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 @@ -379,7 +379,7 @@ 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) { diff --git a/arch/arm/kernel/probes.h b/arch/arm/kernel/probes.h index f990b05..785fcc1 100644 --- a/arch/arm/kernel/probes.h +++ b/arch/arm/kernel/probes.h @@ -19,11 +19,12 @@ #ifndef _ARM_KERNEL_PROBES_H #define _ARM_KERNEL_PROBES_H -#include -#include "kprobes.h" +#include 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 */ @@ -38,7 +39,6 @@ void __init find_str_pc_offset(void); #endif -struct decode_header; /* * Update ITSTATE after normal execution of an IT block instruction. @@ -131,15 +131,6 @@ 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, - struct decode_header *h); - /* * Test if load/store instructions writeback the address register. * if P (bit 24) == 0 or W (bit 21) == 1 @@ -148,7 +139,7 @@ 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 @@ -311,12 +302,13 @@ union decode_item { int action; }; +struct decode_header; typedef enum probes_insn (probes_custom_decode_t)(probes_opcode_t, struct arch_specific_insn *, struct decode_header *); union decode_action { - kprobe_insn_handler_t *handler; + probes_insn_handler_t *handler; probes_custom_decode_t *decoder; }; @@ -402,22 +394,12 @@ 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 -- 1.8.1.2