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ARM: Make the kprobes condition_check symbol names more generic

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In preparation for sharing the ARM kprobes instruction interpreting
code with uprobes, make the symbols names less kprobes-specific.

Signed-off-by: David A. Long <dave.long@linaro.org>
Acked-by: Jon Medhurst <tixy@linaro.org>
This commit is contained in:
David A. Long 2014-03-05 21:17:23 -05:00
parent 7579f4b376
commit f145d664df
10 changed files with 98 additions and 97 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

11
arch/arm/include/asm/probes.h
View File

@ -20,22 +20,23 @@
#define _ASM_PROBES_H #define _ASM_PROBES_H
struct kprobe; struct kprobe;
typedef u32 probes_opcode_t;
struct arch_specific_insn; struct arch_specific_insn;
typedef void (kprobe_insn_handler_t)(kprobe_opcode_t, typedef void (kprobe_insn_handler_t)(probes_opcode_t,
struct arch_specific_insn *, struct arch_specific_insn *,
struct pt_regs *); struct pt_regs *);
typedef unsigned long (kprobe_check_cc)(unsigned long); typedef unsigned long (probes_check_cc)(unsigned long);
typedef void (kprobe_insn_singlestep_t)(kprobe_opcode_t, typedef void (kprobe_insn_singlestep_t)(probes_opcode_t,
struct arch_specific_insn *, struct arch_specific_insn *,
struct pt_regs *); struct pt_regs *);
typedef void (kprobe_insn_fn_t)(void); typedef void (kprobe_insn_fn_t)(void);
/* Architecture specific copy of original instruction. */ /* Architecture specific copy of original instruction. */
struct arch_specific_insn { struct arch_specific_insn {
kprobe_opcode_t *insn; probes_opcode_t *insn;
kprobe_insn_handler_t *insn_handler; kprobe_insn_handler_t *insn_handler;
kprobe_check_cc *insn_check_cc; probes_check_cc *insn_check_cc;
kprobe_insn_singlestep_t *insn_singlestep; kprobe_insn_singlestep_t *insn_singlestep;
kprobe_insn_fn_t *insn_fn; kprobe_insn_fn_t *insn_fn;
}; };

16
arch/arm/kernel/kprobes-arm.c
View File

@ -73,7 +73,7 @@
#endif #endif
static void __kprobes static void __kprobes
emulate_ldrdstrd(kprobe_opcode_t insn, emulate_ldrdstrd(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc + 4; unsigned long pc = regs->ARM_pc + 4;
@ -102,7 +102,7 @@ emulate_ldrdstrd(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
emulate_ldr(kprobe_opcode_t insn, emulate_ldr(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc + 4; unsigned long pc = regs->ARM_pc + 4;
@ -132,7 +132,7 @@ emulate_ldr(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
emulate_str(kprobe_opcode_t insn, emulate_str(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long rtpc = regs->ARM_pc - 4 + str_pc_offset; unsigned long rtpc = regs->ARM_pc - 4 + str_pc_offset;
@ -159,7 +159,7 @@ emulate_str(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
emulate_rd12rn16rm0rs8_rwflags(kprobe_opcode_t insn, emulate_rd12rn16rm0rs8_rwflags(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc + 4; unsigned long pc = regs->ARM_pc + 4;
@ -194,7 +194,7 @@ emulate_rd12rn16rm0rs8_rwflags(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
emulate_rd12rn16rm0_rwflags_nopc(kprobe_opcode_t insn, emulate_rd12rn16rm0_rwflags_nopc(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
int rd = (insn >> 12) & 0xf; int rd = (insn >> 12) & 0xf;
@ -221,7 +221,7 @@ emulate_rd12rn16rm0_rwflags_nopc(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
emulate_rd16rn12rm0rs8_rwflags_nopc(kprobe_opcode_t insn, emulate_rd16rn12rm0rs8_rwflags_nopc(probes_opcode_t insn,
struct arch_specific_insn *asi, struct arch_specific_insn *asi,
struct pt_regs *regs) struct pt_regs *regs)
{ {
@ -251,7 +251,7 @@ emulate_rd16rn12rm0rs8_rwflags_nopc(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
emulate_rd12rm0_noflags_nopc(kprobe_opcode_t insn, emulate_rd12rm0_noflags_nopc(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
int rd = (insn >> 12) & 0xf; int rd = (insn >> 12) & 0xf;
@ -271,7 +271,7 @@ emulate_rd12rm0_noflags_nopc(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
emulate_rdlo12rdhi16rn0rm8_rwflags_nopc(kprobe_opcode_t insn, emulate_rdlo12rdhi16rn0rm8_rwflags_nopc(probes_opcode_t insn,
struct arch_specific_insn *asi, struct arch_specific_insn *asi,
struct pt_regs *regs) struct pt_regs *regs)
{ {

14
arch/arm/kernel/kprobes-common.c
View File

@ -17,7 +17,7 @@
#include "kprobes.h" #include "kprobes.h"
static void __kprobes simulate_ldm1stm1(kprobe_opcode_t insn, static void __kprobes simulate_ldm1stm1(probes_opcode_t insn,
struct arch_specific_insn *asi, struct arch_specific_insn *asi,
struct pt_regs *regs) struct pt_regs *regs)
{ {
@ -59,7 +59,7 @@ static void __kprobes simulate_ldm1stm1(kprobe_opcode_t insn,
} }
} }
static void __kprobes simulate_stm1_pc(kprobe_opcode_t insn, static void __kprobes simulate_stm1_pc(probes_opcode_t insn,
struct arch_specific_insn *asi, struct arch_specific_insn *asi,
struct pt_regs *regs) struct pt_regs *regs)
{ {
@ -70,7 +70,7 @@ static void __kprobes simulate_stm1_pc(kprobe_opcode_t insn,
regs->ARM_pc = (long)addr + 4; regs->ARM_pc = (long)addr + 4;
} }
static void __kprobes simulate_ldm1_pc(kprobe_opcode_t insn, static void __kprobes simulate_ldm1_pc(probes_opcode_t insn,
struct arch_specific_insn *asi, struct arch_specific_insn *asi,
struct pt_regs *regs) struct pt_regs *regs)
{ {
@ -79,7 +79,7 @@ static void __kprobes simulate_ldm1_pc(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
emulate_generic_r0_12_noflags(kprobe_opcode_t insn, emulate_generic_r0_12_noflags(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
register void *rregs asm("r1") = regs; register void *rregs asm("r1") = regs;
@ -107,7 +107,7 @@ emulate_generic_r0_12_noflags(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
emulate_generic_r2_14_noflags(kprobe_opcode_t insn, emulate_generic_r2_14_noflags(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
emulate_generic_r0_12_noflags(insn, asi, emulate_generic_r0_12_noflags(insn, asi,
@ -115,7 +115,7 @@ emulate_generic_r2_14_noflags(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
emulate_ldm_r3_15(kprobe_opcode_t insn, emulate_ldm_r3_15(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
emulate_generic_r0_12_noflags(insn, asi, emulate_generic_r0_12_noflags(insn, asi,
@ -124,7 +124,7 @@ emulate_ldm_r3_15(kprobe_opcode_t insn,
} }
enum kprobe_insn __kprobes enum kprobe_insn __kprobes
kprobe_decode_ldmstm(kprobe_opcode_t insn, struct arch_specific_insn *asi, kprobe_decode_ldmstm(probes_opcode_t insn, struct arch_specific_insn *asi,
const struct decode_header *h) const struct decode_header *h)
{ {
kprobe_insn_handler_t *handler = 0; kprobe_insn_handler_t *handler = 0;

76
arch/arm/kernel/kprobes-thumb.c
View File

@ -23,7 +23,7 @@
/* t32 thumb actions */ /* t32 thumb actions */
static void __kprobes static void __kprobes
t32_simulate_table_branch(kprobe_opcode_t insn, t32_simulate_table_branch(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc; unsigned long pc = regs->ARM_pc;
@ -43,7 +43,7 @@ t32_simulate_table_branch(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t32_simulate_mrs(kprobe_opcode_t insn, t32_simulate_mrs(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
int rd = (insn >> 8) & 0xf; int rd = (insn >> 8) & 0xf;
@ -52,7 +52,7 @@ t32_simulate_mrs(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t32_simulate_cond_branch(kprobe_opcode_t insn, t32_simulate_cond_branch(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc; unsigned long pc = regs->ARM_pc;
@ -67,17 +67,17 @@ t32_simulate_cond_branch(kprobe_opcode_t insn,
} }
static enum kprobe_insn __kprobes static enum kprobe_insn __kprobes
t32_decode_cond_branch(kprobe_opcode_t insn, struct arch_specific_insn *asi, t32_decode_cond_branch(probes_opcode_t insn, struct arch_specific_insn *asi,
const struct decode_header *d) const struct decode_header *d)
{ {
int cc = (insn >> 22) & 0xf; int cc = (insn >> 22) & 0xf;
asi->insn_check_cc = kprobe_condition_checks[cc]; asi->insn_check_cc = probes_condition_checks[cc];
asi->insn_handler = t32_simulate_cond_branch; asi->insn_handler = t32_simulate_cond_branch;
return INSN_GOOD_NO_SLOT; return INSN_GOOD_NO_SLOT;
} }
static void __kprobes static void __kprobes
t32_simulate_branch(kprobe_opcode_t insn, t32_simulate_branch(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc; unsigned long pc = regs->ARM_pc;
@ -105,7 +105,7 @@ t32_simulate_branch(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t32_simulate_ldr_literal(kprobe_opcode_t insn, t32_simulate_ldr_literal(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long addr = regs->ARM_pc & ~3; unsigned long addr = regs->ARM_pc & ~3;
@ -143,7 +143,7 @@ t32_simulate_ldr_literal(kprobe_opcode_t insn,
} }
static enum kprobe_insn __kprobes static enum kprobe_insn __kprobes
t32_decode_ldmstm(kprobe_opcode_t insn, struct arch_specific_insn *asi, t32_decode_ldmstm(probes_opcode_t insn, struct arch_specific_insn *asi,
const struct decode_header *d) const struct decode_header *d)
{ {
enum kprobe_insn ret = kprobe_decode_ldmstm(insn, asi, d); enum kprobe_insn ret = kprobe_decode_ldmstm(insn, asi, d);
@ -157,7 +157,7 @@ t32_decode_ldmstm(kprobe_opcode_t insn, struct arch_specific_insn *asi,
} }
static void __kprobes static void __kprobes
t32_emulate_ldrdstrd(kprobe_opcode_t insn, t32_emulate_ldrdstrd(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc & ~3; unsigned long pc = regs->ARM_pc & ~3;
@ -184,7 +184,7 @@ t32_emulate_ldrdstrd(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t32_emulate_ldrstr(kprobe_opcode_t insn, t32_emulate_ldrstr(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
int rt = (insn >> 12) & 0xf; int rt = (insn >> 12) & 0xf;
@ -210,7 +210,7 @@ t32_emulate_ldrstr(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t32_emulate_rd8rn16rm0_rwflags(kprobe_opcode_t insn, t32_emulate_rd8rn16rm0_rwflags(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
int rd = (insn >> 8) & 0xf; int rd = (insn >> 8) & 0xf;
@ -237,7 +237,7 @@ t32_emulate_rd8rn16rm0_rwflags(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t32_emulate_rd8pc16_noflags(kprobe_opcode_t insn, t32_emulate_rd8pc16_noflags(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc; unsigned long pc = regs->ARM_pc;
@ -257,7 +257,7 @@ t32_emulate_rd8pc16_noflags(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t32_emulate_rd8rn16_noflags(kprobe_opcode_t insn, t32_emulate_rd8rn16_noflags(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
int rd = (insn >> 8) & 0xf; int rd = (insn >> 8) & 0xf;
@ -277,7 +277,7 @@ t32_emulate_rd8rn16_noflags(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t32_emulate_rdlo12rdhi8rn16rm0_noflags(kprobe_opcode_t insn, t32_emulate_rdlo12rdhi8rn16rm0_noflags(probes_opcode_t insn,
struct arch_specific_insn *asi, struct arch_specific_insn *asi,
struct pt_regs *regs) struct pt_regs *regs)
{ {
@ -305,7 +305,7 @@ t32_emulate_rdlo12rdhi8rn16rm0_noflags(kprobe_opcode_t insn,
/* t16 thumb actions */ /* t16 thumb actions */
static void __kprobes static void __kprobes
t16_simulate_bxblx(kprobe_opcode_t insn, t16_simulate_bxblx(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc + 2; unsigned long pc = regs->ARM_pc + 2;
@ -319,7 +319,7 @@ t16_simulate_bxblx(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t16_simulate_ldr_literal(kprobe_opcode_t insn, t16_simulate_ldr_literal(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long *base = (unsigned long *)((regs->ARM_pc + 2) & ~3); unsigned long *base = (unsigned long *)((regs->ARM_pc + 2) & ~3);
@ -329,7 +329,7 @@ t16_simulate_ldr_literal(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t16_simulate_ldrstr_sp_relative(kprobe_opcode_t insn, t16_simulate_ldrstr_sp_relative(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long* base = (unsigned long *)regs->ARM_sp; unsigned long* base = (unsigned long *)regs->ARM_sp;
@ -342,7 +342,7 @@ t16_simulate_ldrstr_sp_relative(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t16_simulate_reladr(kprobe_opcode_t insn, t16_simulate_reladr(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long base = (insn & 0x800) ? regs->ARM_sp unsigned long base = (insn & 0x800) ? regs->ARM_sp
@ -353,7 +353,7 @@ t16_simulate_reladr(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t16_simulate_add_sp_imm(kprobe_opcode_t insn, t16_simulate_add_sp_imm(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
long imm = insn & 0x7f; long imm = insn & 0x7f;
@ -364,11 +364,11 @@ t16_simulate_add_sp_imm(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t16_simulate_cbz(kprobe_opcode_t insn, t16_simulate_cbz(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
int rn = insn & 0x7; int rn = insn & 0x7;
kprobe_opcode_t nonzero = regs->uregs[rn] ? insn : ~insn; probes_opcode_t nonzero = regs->uregs[rn] ? insn : ~insn;
if (nonzero & 0x800) { if (nonzero & 0x800) {
long i = insn & 0x200; long i = insn & 0x200;
long imm5 = insn & 0xf8; long imm5 = insn & 0xf8;
@ -378,7 +378,7 @@ t16_simulate_cbz(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t16_simulate_it(kprobe_opcode_t insn, t16_simulate_it(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
/* /*
@ -395,7 +395,7 @@ t16_simulate_it(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t16_singlestep_it(kprobe_opcode_t insn, t16_singlestep_it(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
regs->ARM_pc += 2; regs->ARM_pc += 2;
@ -403,7 +403,7 @@ t16_singlestep_it(kprobe_opcode_t insn,
} }
static enum kprobe_insn __kprobes static enum kprobe_insn __kprobes
t16_decode_it(kprobe_opcode_t insn, struct arch_specific_insn *asi, t16_decode_it(probes_opcode_t insn, struct arch_specific_insn *asi,
const struct decode_header *d) const struct decode_header *d)
{ {
asi->insn_singlestep = t16_singlestep_it; asi->insn_singlestep = t16_singlestep_it;
@ -411,7 +411,7 @@ t16_decode_it(kprobe_opcode_t insn, struct arch_specific_insn *asi,
} }
static void __kprobes static void __kprobes
t16_simulate_cond_branch(kprobe_opcode_t insn, t16_simulate_cond_branch(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc + 2; unsigned long pc = regs->ARM_pc + 2;
@ -421,17 +421,17 @@ t16_simulate_cond_branch(kprobe_opcode_t insn,
} }
static enum kprobe_insn __kprobes static enum kprobe_insn __kprobes
t16_decode_cond_branch(kprobe_opcode_t insn, struct arch_specific_insn *asi, t16_decode_cond_branch(probes_opcode_t insn, struct arch_specific_insn *asi,
const struct decode_header *d) const struct decode_header *d)
{ {
int cc = (insn >> 8) & 0xf; int cc = (insn >> 8) & 0xf;
asi->insn_check_cc = kprobe_condition_checks[cc]; asi->insn_check_cc = probes_condition_checks[cc];
asi->insn_handler = t16_simulate_cond_branch; asi->insn_handler = t16_simulate_cond_branch;
return INSN_GOOD_NO_SLOT; return INSN_GOOD_NO_SLOT;
} }
static void __kprobes static void __kprobes
t16_simulate_branch(kprobe_opcode_t insn, t16_simulate_branch(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc + 2; unsigned long pc = regs->ARM_pc + 2;
@ -441,7 +441,7 @@ t16_simulate_branch(kprobe_opcode_t insn,
} }
static unsigned long __kprobes static unsigned long __kprobes
t16_emulate_loregs(kprobe_opcode_t insn, t16_emulate_loregs(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long oldcpsr = regs->ARM_cpsr; unsigned long oldcpsr = regs->ARM_cpsr;
@ -464,14 +464,14 @@ t16_emulate_loregs(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t16_emulate_loregs_rwflags(kprobe_opcode_t insn, t16_emulate_loregs_rwflags(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
regs->ARM_cpsr = t16_emulate_loregs(insn, asi, regs); regs->ARM_cpsr = t16_emulate_loregs(insn, asi, regs);
} }
static void __kprobes static void __kprobes
t16_emulate_loregs_noitrwflags(kprobe_opcode_t insn, t16_emulate_loregs_noitrwflags(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long cpsr = t16_emulate_loregs(insn, asi, regs); unsigned long cpsr = t16_emulate_loregs(insn, asi, regs);
@ -480,7 +480,7 @@ t16_emulate_loregs_noitrwflags(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t16_emulate_hiregs(kprobe_opcode_t insn, t16_emulate_hiregs(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
unsigned long pc = regs->ARM_pc + 2; unsigned long pc = regs->ARM_pc + 2;
@ -511,7 +511,7 @@ t16_emulate_hiregs(kprobe_opcode_t insn,
} }
static enum kprobe_insn __kprobes static enum kprobe_insn __kprobes
t16_decode_hiregs(kprobe_opcode_t insn, struct arch_specific_insn *asi, t16_decode_hiregs(probes_opcode_t insn, struct arch_specific_insn *asi,
const struct decode_header *d) const struct decode_header *d)
{ {
insn &= ~0x00ff; insn &= ~0x00ff;
@ -522,7 +522,7 @@ t16_decode_hiregs(kprobe_opcode_t insn, struct arch_specific_insn *asi,
} }
static void __kprobes static void __kprobes
t16_emulate_push(kprobe_opcode_t insn, t16_emulate_push(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
__asm__ __volatile__ ( __asm__ __volatile__ (
@ -539,7 +539,7 @@ t16_emulate_push(kprobe_opcode_t insn,
} }
static enum kprobe_insn __kprobes static enum kprobe_insn __kprobes
t16_decode_push(kprobe_opcode_t insn, struct arch_specific_insn *asi, t16_decode_push(probes_opcode_t insn, struct arch_specific_insn *asi,
const struct decode_header *d) const struct decode_header *d)
{ {
/* /*
@ -554,7 +554,7 @@ t16_decode_push(kprobe_opcode_t insn, struct arch_specific_insn *asi,
} }
static void __kprobes static void __kprobes
t16_emulate_pop_nopc(kprobe_opcode_t insn, t16_emulate_pop_nopc(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
__asm__ __volatile__ ( __asm__ __volatile__ (
@ -571,7 +571,7 @@ t16_emulate_pop_nopc(kprobe_opcode_t insn,
} }
static void __kprobes static void __kprobes
t16_emulate_pop_pc(kprobe_opcode_t insn, t16_emulate_pop_pc(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
register unsigned long pc asm("r8"); register unsigned long pc asm("r8");
@ -592,7 +592,7 @@ t16_emulate_pop_pc(kprobe_opcode_t insn,
} }
static enum kprobe_insn __kprobes static enum kprobe_insn __kprobes
t16_decode_pop(kprobe_opcode_t insn, struct arch_specific_insn *asi, t16_decode_pop(probes_opcode_t insn, struct arch_specific_insn *asi,
const struct decode_header *d) const struct decode_header *d)
{ {
/* /*

8
arch/arm/kernel/kprobes.h
View File

@ -36,22 +36,22 @@ enum kprobe_insn {
INSN_GOOD_NO_SLOT INSN_GOOD_NO_SLOT
}; };
typedef enum kprobe_insn (kprobe_decode_insn_t)(kprobe_opcode_t, typedef enum kprobe_insn (kprobe_decode_insn_t)(probes_opcode_t,
struct arch_specific_insn *, struct arch_specific_insn *,
const union decode_action *); const union decode_action *);
#ifdef CONFIG_THUMB2_KERNEL #ifdef CONFIG_THUMB2_KERNEL
enum kprobe_insn thumb16_kprobe_decode_insn(kprobe_opcode_t, enum kprobe_insn thumb16_kprobe_decode_insn(probes_opcode_t,
struct arch_specific_insn *, struct arch_specific_insn *,
const union decode_action *); const union decode_action *);
enum kprobe_insn thumb32_kprobe_decode_insn(kprobe_opcode_t, enum kprobe_insn thumb32_kprobe_decode_insn(probes_opcode_t,
struct arch_specific_insn *, struct arch_specific_insn *,
const union decode_action *); const union decode_action *);
#else /* !CONFIG_THUMB2_KERNEL */ #else /* !CONFIG_THUMB2_KERNEL */
enum kprobe_insn arm_kprobe_decode_insn(kprobe_opcode_t, enum kprobe_insn arm_kprobe_decode_insn(probes_opcode_t,
struct arch_specific_insn *, struct arch_specific_insn *,
const union decode_action *); const union decode_action *);

16
arch/arm/kernel/probes-arm.c
View File

@ -57,7 +57,7 @@
* read and write of flags. * read and write of flags.
*/ */
void __kprobes simulate_bbl(kprobe_opcode_t insn, void __kprobes simulate_bbl(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
long iaddr = (long) regs->ARM_pc - 4; long iaddr = (long) regs->ARM_pc - 4;
@ -69,7 +69,7 @@ void __kprobes simulate_bbl(kprobe_opcode_t insn,
regs->ARM_pc = iaddr + 8 + disp; regs->ARM_pc = iaddr + 8 + disp;
} }
void __kprobes simulate_blx1(kprobe_opcode_t insn, void __kprobes simulate_blx1(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
long iaddr = (long) regs->ARM_pc - 4; long iaddr = (long) regs->ARM_pc - 4;
@ -80,7 +80,7 @@ void __kprobes simulate_blx1(kprobe_opcode_t insn,
regs->ARM_cpsr |= PSR_T_BIT; regs->ARM_cpsr |= PSR_T_BIT;
} }
void __kprobes simulate_blx2bx(kprobe_opcode_t insn, void __kprobes simulate_blx2bx(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
int rm = insn & 0xf; int rm = insn & 0xf;
@ -95,7 +95,7 @@ void __kprobes simulate_blx2bx(kprobe_opcode_t insn,
regs->ARM_cpsr |= PSR_T_BIT; regs->ARM_cpsr |= PSR_T_BIT;
} }
void __kprobes simulate_mrs(kprobe_opcode_t insn, void __kprobes simulate_mrs(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
int rd = (insn >> 12) & 0xf; int rd = (insn >> 12) & 0xf;
@ -103,7 +103,7 @@ void __kprobes simulate_mrs(kprobe_opcode_t insn,
regs->uregs[rd] = regs->ARM_cpsr & mask; regs->uregs[rd] = regs->ARM_cpsr & mask;
} }
void __kprobes simulate_mov_ipsp(kprobe_opcode_t insn, void __kprobes simulate_mov_ipsp(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
regs->uregs[12] = regs->uregs[13]; regs->uregs[12] = regs->uregs[13];
@ -704,7 +704,7 @@ const union decode_item kprobe_decode_arm_table[] = {
EXPORT_SYMBOL_GPL(kprobe_decode_arm_table); EXPORT_SYMBOL_GPL(kprobe_decode_arm_table);
#endif #endif
static void __kprobes arm_singlestep(kprobe_opcode_t insn, static void __kprobes arm_singlestep(probes_opcode_t insn,
struct arch_specific_insn *asi, struct pt_regs *regs) struct arch_specific_insn *asi, struct pt_regs *regs)
{ {
regs->ARM_pc += 4; regs->ARM_pc += 4;
@ -724,11 +724,11 @@ static void __kprobes arm_singlestep(kprobe_opcode_t insn,
* should also be very rare. * should also be very rare.
*/ */
enum kprobe_insn __kprobes enum kprobe_insn __kprobes
arm_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi, arm_kprobe_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
const union decode_action *actions) const union decode_action *actions)
{ {
asi->insn_singlestep = arm_singlestep; asi->insn_singlestep = arm_singlestep;
asi->insn_check_cc = kprobe_condition_checks[insn>>28]; asi->insn_check_cc = probes_condition_checks[insn>>28];
return kprobe_decode_insn(insn, asi, kprobe_decode_arm_table, false, return kprobe_decode_insn(insn, asi, kprobe_decode_arm_table, false,
actions); actions);
} }

10
arch/arm/kernel/probes-arm.h
View File

@ -53,15 +53,15 @@ enum probes_arm_action {
NUM_PROBES_ARM_ACTIONS NUM_PROBES_ARM_ACTIONS
}; };
void __kprobes simulate_bbl(kprobe_opcode_t opcode, void __kprobes simulate_bbl(probes_opcode_t opcode,
struct arch_specific_insn *asi, struct pt_regs *regs); struct arch_specific_insn *asi, struct pt_regs *regs);
void __kprobes simulate_blx1(kprobe_opcode_t opcode, void __kprobes simulate_blx1(probes_opcode_t opcode,
struct arch_specific_insn *asi, struct pt_regs *regs); struct arch_specific_insn *asi, struct pt_regs *regs);
void __kprobes simulate_blx2bx(kprobe_opcode_t opcode, void __kprobes simulate_blx2bx(probes_opcode_t opcode,
struct arch_specific_insn *asi, struct pt_regs *regs); struct arch_specific_insn *asi, struct pt_regs *regs);
void __kprobes simulate_mrs(kprobe_opcode_t opcode, void __kprobes simulate_mrs(probes_opcode_t opcode,
struct arch_specific_insn *asi, struct pt_regs *regs); struct arch_specific_insn *asi, struct pt_regs *regs);
void __kprobes simulate_mov_ipsp(kprobe_opcode_t opcode, void __kprobes simulate_mov_ipsp(probes_opcode_t opcode,
struct arch_specific_insn *asi, struct pt_regs *regs); struct arch_specific_insn *asi, struct pt_regs *regs);
#endif #endif

10
arch/arm/kernel/probes-thumb.c
View File

@ -839,11 +839,11 @@ EXPORT_SYMBOL_GPL(kprobe_decode_thumb16_table);
static unsigned long __kprobes thumb_check_cc(unsigned long cpsr) static unsigned long __kprobes thumb_check_cc(unsigned long cpsr)
{ {
if (unlikely(in_it_block(cpsr))) if (unlikely(in_it_block(cpsr)))
return kprobe_condition_checks[current_cond(cpsr)](cpsr); return probes_condition_checks[current_cond(cpsr)](cpsr);
return true; return true;
} }
static void __kprobes thumb16_singlestep(kprobe_opcode_t opcode, static void __kprobes thumb16_singlestep(probes_opcode_t opcode,
struct arch_specific_insn *asi, struct arch_specific_insn *asi,
struct pt_regs *regs) struct pt_regs *regs)
{ {
@ -852,7 +852,7 @@ static void __kprobes thumb16_singlestep(kprobe_opcode_t opcode,
regs->ARM_cpsr = it_advance(regs->ARM_cpsr); regs->ARM_cpsr = it_advance(regs->ARM_cpsr);
} }
static void __kprobes thumb32_singlestep(kprobe_opcode_t opcode, static void __kprobes thumb32_singlestep(probes_opcode_t opcode,
struct arch_specific_insn *asi, struct arch_specific_insn *asi,
struct pt_regs *regs) struct pt_regs *regs)
{ {
@ -862,7 +862,7 @@ static void __kprobes thumb32_singlestep(kprobe_opcode_t opcode,
} }
enum kprobe_insn __kprobes enum kprobe_insn __kprobes
thumb16_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi, thumb16_kprobe_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
const union decode_action *actions) const union decode_action *actions)
{ {
asi->insn_singlestep = thumb16_singlestep; asi->insn_singlestep = thumb16_singlestep;
@ -872,7 +872,7 @@ thumb16_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi,
} }
enum kprobe_insn __kprobes enum kprobe_insn __kprobes
thumb32_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi, thumb32_kprobe_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
const union decode_action *actions) const union decode_action *actions)
{ {
asi->insn_singlestep = thumb32_singlestep; asi->insn_singlestep = thumb32_singlestep;

22
arch/arm/kernel/probes.c
View File

@ -167,7 +167,7 @@ static unsigned long __kprobes __check_al(unsigned long cpsr)
return true; return true;
} }
kprobe_check_cc * const kprobe_condition_checks[16] = { probes_check_cc * const probes_condition_checks[16] = {
&__check_eq, &__check_ne, &__check_cs, &__check_cc, &__check_eq, &__check_ne, &__check_cs, &__check_cc,
&__check_mi, &__check_pl, &__check_vs, &__check_vc, &__check_mi, &__check_pl, &__check_vs, &__check_vc,
&__check_hi, &__check_ls, &__check_ge, &__check_lt, &__check_hi, &__check_ls, &__check_ge, &__check_lt,
@ -175,13 +175,13 @@ kprobe_check_cc * const kprobe_condition_checks[16] = {
}; };
void __kprobes kprobe_simulate_nop(kprobe_opcode_t opcode, void __kprobes kprobe_simulate_nop(probes_opcode_t opcode,
struct arch_specific_insn *asi, struct arch_specific_insn *asi,
struct pt_regs *regs) struct pt_regs *regs)
{ {
} }
void __kprobes kprobe_emulate_none(kprobe_opcode_t opcode, void __kprobes kprobe_emulate_none(probes_opcode_t opcode,
struct arch_specific_insn *asi, struct arch_specific_insn *asi,
struct pt_regs *regs) struct pt_regs *regs)
{ {
@ -195,8 +195,8 @@ void __kprobes kprobe_emulate_none(kprobe_opcode_t opcode,
* unconditional as the condition code will already be checked before any * unconditional as the condition code will already be checked before any
* emulation handler is called. * emulation handler is called.
*/ */
static kprobe_opcode_t __kprobes static probes_opcode_t __kprobes
prepare_emulated_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi, prepare_emulated_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
bool thumb) bool thumb)
{ {
#ifdef CONFIG_THUMB2_KERNEL #ifdef CONFIG_THUMB2_KERNEL
@ -221,7 +221,7 @@ prepare_emulated_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi,
* prepare_emulated_insn * prepare_emulated_insn
*/ */
static void __kprobes static void __kprobes
set_emulated_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi, set_emulated_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
bool thumb) bool thumb)
{ {
#ifdef CONFIG_THUMB2_KERNEL #ifdef CONFIG_THUMB2_KERNEL
@ -257,14 +257,14 @@ set_emulated_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi,
* non-zero value, the corresponding nibble in pinsn is validated and modified * non-zero value, the corresponding nibble in pinsn is validated and modified
* according to the type. * according to the type.
*/ */
static bool __kprobes decode_regs(kprobe_opcode_t *pinsn, u32 regs) static bool __kprobes decode_regs(probes_opcode_t *pinsn, u32 regs)
{ {
kprobe_opcode_t insn = *pinsn; probes_opcode_t insn = *pinsn;
kprobe_opcode_t mask = 0xf; /* Start at least significant nibble */ probes_opcode_t mask = 0xf; /* Start at least significant nibble */
for (; regs != 0; regs >>= 4, mask <<= 4) { for (; regs != 0; regs >>= 4, mask <<= 4) {
kprobe_opcode_t new_bits = INSN_NEW_BITS; probes_opcode_t new_bits = INSN_NEW_BITS;
switch (regs & 0xf) { switch (regs & 0xf) {
@ -383,7 +383,7 @@ static const int decode_struct_sizes[NUM_DECODE_TYPES] = {
* *
*/ */
int __kprobes int __kprobes
kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi, kprobe_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
const union decode_item *table, bool thumb, const union decode_item *table, bool thumb,
const union decode_action *actions) const union decode_action *actions)
{ {

12
arch/arm/kernel/probes.h
View File

@ -131,13 +131,13 @@ static inline void __kprobes alu_write_pc(long pcv, struct pt_regs *regs)
} }
void __kprobes kprobe_simulate_nop(kprobe_opcode_t, struct arch_specific_insn *, void __kprobes kprobe_simulate_nop(probes_opcode_t, struct arch_specific_insn *,
struct pt_regs *regs); struct pt_regs *regs);
void __kprobes kprobe_emulate_none(kprobe_opcode_t, struct arch_specific_insn *, void __kprobes kprobe_emulate_none(probes_opcode_t, struct arch_specific_insn *,
struct pt_regs *regs); struct pt_regs *regs);
enum kprobe_insn __kprobes enum kprobe_insn __kprobes
kprobe_decode_ldmstm(kprobe_opcode_t insn, struct arch_specific_insn *asi, kprobe_decode_ldmstm(probes_opcode_t insn, struct arch_specific_insn *asi,
const struct decode_header *h); const struct decode_header *h);
/* /*
@ -311,7 +311,7 @@ union decode_item {
int action; int action;
}; };
typedef enum kprobe_insn (probes_custom_decode_t)(kprobe_opcode_t, typedef enum kprobe_insn (probes_custom_decode_t)(probes_opcode_t,
struct arch_specific_insn *, struct arch_specific_insn *,
const struct decode_header *); const struct decode_header *);
@ -408,10 +408,10 @@ extern const union decode_item kprobe_decode_arm_table[];
extern const union decode_action kprobes_arm_actions[]; extern const union decode_action kprobes_arm_actions[];
#endif #endif
extern kprobe_check_cc * const kprobe_condition_checks[16]; extern probes_check_cc * const probes_condition_checks[16];
int kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi, int kprobe_decode_insn(probes_opcode_t insn, struct arch_specific_insn *asi,
const union decode_item *table, bool thumb16, const union decode_item *table, bool thumb16,
const union decode_action *actions); const union decode_action *actions);