ARM: kprobes: Use new versions of emulate_ldr() and emulate_str()

Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>

diff --git a/arch/arm/kernel/kprobes-arm.c b/arch/arm/kernel/kprobes-arm.c
index d252e78..1ee38ad 100644 (file)
--- a/arch/arm/kernel/kprobes-arm.c
+++ b/arch/arm/kernel/kprobes-arm.c
@@ -1275,19 +1275,25 @@ static const union decode_item arm_cccc_000x_____1xx1_table[] = {
        DECODE_EMULATEX (0x0e5000d0, 0x004000d0, emulate_ldrdstrd,
                                                 REGS(NOPCWB, NOPCX, 0, 0, 0)),
 
-       /* Reject Rd is PC */
-       /* TODO: fold this into next entry when it is made a DECODE_EMULATE */
-       DECODE_REJECT   (0x0000f000, 0x0000f000),
-
        /* STRH (register)      cccc 000x x0x0 xxxx xxxx xxxx 1011 xxxx */
+       DECODE_EMULATEX (0x0e5000f0, 0x000000b0, emulate_str,
+                                                REGS(NOPCWB, NOPC, 0, 0, NOPC)),
+
        /* LDRH (register)      cccc 000x x0x1 xxxx xxxx xxxx 1011 xxxx */
        /* LDRSB (register)     cccc 000x x0x1 xxxx xxxx xxxx 1101 xxxx */
        /* LDRSH (register)     cccc 000x x0x1 xxxx xxxx xxxx 1111 xxxx */
+       DECODE_EMULATEX (0x0e500090, 0x00100090, emulate_ldr,
+                                                REGS(NOPCWB, NOPC, 0, 0, NOPC)),
+
        /* STRH (immediate)     cccc 000x x1x0 xxxx xxxx xxxx 1011 xxxx */
+       DECODE_EMULATEX (0x0e5000f0, 0x004000b0, emulate_str,
+                                                REGS(NOPCWB, NOPC, 0, 0, 0)),
+
        /* LDRH (immediate)     cccc 000x x1x1 xxxx xxxx xxxx 1011 xxxx */
        /* LDRSB (immediate)    cccc 000x x1x1 xxxx xxxx xxxx 1101 xxxx */
        /* LDRSH (immediate)    cccc 000x x1x1 xxxx xxxx xxxx 1111 xxxx */
-       DECODE_CUSTOM   (0x0e000090, 0x00000090, prep_emulate_ldr_str),
+       DECODE_EMULATEX (0x0e500090, 0x00500090, emulate_ldr,
+                                                REGS(NOPCWB, NOPC, 0, 0, 0)),
 
        DECODE_END
 };
@@ -1558,15 +1564,25 @@ static const union decode_item arm_cccc_01xx_table[] = {
        /* LDRB/STRB pc,[...]   cccc 01xx x0xx xxxx xxxx xxxx xxxx xxxx */
        DECODE_REJECT   (0x0c40f000, 0x0440f000),
 
-       /* LDR                  cccc 01xx x0x1 xxxx xxxx xxxx xxxx xxxx */
-       /* LDRB                 cccc 01xx x1x1 xxxx xxxx xxxx xxxx xxxx */
-       /* LDRBT                cccc 01x0 x111 xxxx xxxx xxxx xxxx xxxx */
-       /* LDRT                 cccc 01x0 x011 xxxx xxxx xxxx xxxx xxxx */
-       /* STR                  cccc 01xx x0x0 xxxx xxxx xxxx xxxx xxxx */
-       /* STRB                 cccc 01xx x1x0 xxxx xxxx xxxx xxxx xxxx */
-       /* STRBT                cccc 01x0 x110 xxxx xxxx xxxx xxxx xxxx */
-       /* STRT                 cccc 01x0 x010 xxxx xxxx xxxx xxxx xxxx */
-       DECODE_CUSTOM   (0x0c000000, 0x04000000, prep_emulate_ldr_str),
+       /* STR (immediate)      cccc 010x x0x0 xxxx xxxx xxxx xxxx xxxx */
+       /* STRB (immediate)     cccc 010x x1x0 xxxx xxxx xxxx xxxx xxxx */
+       DECODE_EMULATEX (0x0e100000, 0x04000000, emulate_str,
+                                                REGS(NOPCWB, ANY, 0, 0, 0)),
+
+       /* LDR (immediate)      cccc 010x x0x1 xxxx xxxx xxxx xxxx xxxx */
+       /* LDRB (immediate)     cccc 010x x1x1 xxxx xxxx xxxx xxxx xxxx */
+       DECODE_EMULATEX (0x0e100000, 0x04100000, emulate_ldr,
+                                                REGS(NOPCWB, ANY, 0, 0, 0)),
+
+       /* STR (register)       cccc 011x x0x0 xxxx xxxx xxxx xxxx xxxx */
+       /* STRB (register)      cccc 011x x1x0 xxxx xxxx xxxx xxxx xxxx */
+       DECODE_EMULATEX (0x0e100000, 0x06000000, emulate_str,
+                                                REGS(NOPCWB, ANY, 0, 0, NOPC)),
+
+       /* LDR (register)       cccc 011x x0x1 xxxx xxxx xxxx xxxx xxxx */
+       /* LDRB (register)      cccc 011x x1x1 xxxx xxxx xxxx xxxx xxxx */
+       DECODE_EMULATEX (0x0e100000, 0x06100000, emulate_ldr,
+                                                REGS(NOPCWB, ANY, 0, 0, NOPC)),
 
        DECODE_END
 };