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authorMark Brown <broonie@kernel.org>2014-11-21 18:53:19 +0000
committerMark Brown <broonie@kernel.org>2014-11-21 18:53:19 +0000
commit09cc926e9a6002790e69ed213217ef9874888624 (patch)
treed97960db291ce620a9ee216b4d3cafd6f38ee2d3 /arch/arm/kernel/kprobes-common.c
parentd18b9ba808322f843375c262a7df889ff406a71c (diff)
parent252f23ea5987a4730e3399ef1ad5d78efcc786c9 (diff)
Merge tag 'v3.10.61' into linux-linaro-lsk
This is the 3.10.61 stable release
Diffstat (limited to 'arch/arm/kernel/kprobes-common.c')
-rw-r--r--arch/arm/kernel/kprobes-common.c19
1 files changed, 11 insertions, 8 deletions
diff --git a/arch/arm/kernel/kprobes-common.c b/arch/arm/kernel/kprobes-common.c
index 18a76282970e..380c20fb9c85 100644
--- a/arch/arm/kernel/kprobes-common.c
+++ b/arch/arm/kernel/kprobes-common.c
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/kprobes.h>
#include <asm/system_info.h>
+#include <asm/opcodes.h>
#include "kprobes.h"
@@ -305,7 +306,8 @@ kprobe_decode_ldmstm(kprobe_opcode_t insn, struct arch_specific_insn *asi)
if (handler) {
/* We can emulate the instruction in (possibly) modified form */
- asi->insn[0] = (insn & 0xfff00000) | (rn << 16) | reglist;
+ asi->insn[0] = __opcode_to_mem_arm((insn & 0xfff00000) |
+ (rn << 16) | reglist);
asi->insn_handler = handler;
return INSN_GOOD;
}
@@ -334,13 +336,14 @@ prepare_emulated_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi,
#ifdef CONFIG_THUMB2_KERNEL
if (thumb) {
u16 *thumb_insn = (u16 *)asi->insn;
- thumb_insn[1] = 0x4770; /* Thumb bx lr */
- thumb_insn[2] = 0x4770; /* Thumb bx lr */
+ /* Thumb bx lr */
+ thumb_insn[1] = __opcode_to_mem_thumb16(0x4770);
+ thumb_insn[2] = __opcode_to_mem_thumb16(0x4770);
return insn;
}
- asi->insn[1] = 0xe12fff1e; /* ARM bx lr */
+ asi->insn[1] = __opcode_to_mem_arm(0xe12fff1e); /* ARM bx lr */
#else
- asi->insn[1] = 0xe1a0f00e; /* mov pc, lr */
+ asi->insn[1] = __opcode_to_mem_arm(0xe1a0f00e); /* mov pc, lr */
#endif
/* Make an ARM instruction unconditional */
if (insn < 0xe0000000)
@@ -360,12 +363,12 @@ set_emulated_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi,
if (thumb) {
u16 *ip = (u16 *)asi->insn;
if (is_wide_instruction(insn))
- *ip++ = insn >> 16;
- *ip++ = insn;
+ *ip++ = __opcode_to_mem_thumb16(insn >> 16);
+ *ip++ = __opcode_to_mem_thumb16(insn);
return;
}
#endif
- asi->insn[0] = insn;
+ asi->insn[0] = __opcode_to_mem_arm(insn);
}
/*