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yaml
---
r: 258383
b: refs/heads/master
c: 56d8fbd
h: refs/heads/master
i:
  258381: d1ee04b
  258379: 3a7a13a
  258375: fa7274a
  258367: cf0a58d
v: v3
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Jon Medhurst authored and Tixy committed Jul 13, 2011
1 parent c7d0058 commit 9737b9c
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2 changes: 1 addition & 1 deletion [refs]
Original file line number Diff line number Diff line change
@@ -1,2 +1,2 @@
---
refs/heads/master: ad2e81a78d016176b9f194414495a4ce166399e1
refs/heads/master: 56d8fbddc2a2be7aa81d65e5a6f0f6093ee70c48
37 changes: 19 additions & 18 deletions trunk/arch/arm/kernel/kprobes-arm.c
Original file line number Diff line number Diff line change
Expand Up @@ -1415,23 +1415,24 @@ static const union decode_item arm_cccc_0111_____xxx1_table[] = {
DECODE_END
};

static enum kprobe_insn __kprobes
space_cccc_01xx(kprobe_opcode_t insn, struct arch_specific_insn *asi)
{
/* 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 */

if ((insn & 0x00500000) == 0x00500000 && is_r15(insn, 12))
return INSN_REJECTED; /* LDRB into PC */

return prep_emulate_ldr_str(insn, asi);
}
static const union decode_item arm_cccc_01xx_table[] = {
/* Load/store word and unsigned byte */

/* 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),

DECODE_END
};

static enum kprobe_insn __kprobes
space_cccc_100x(kprobe_opcode_t insn, struct arch_specific_insn *asi)
Expand Down Expand Up @@ -1526,7 +1527,7 @@ arm_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi)

else if ((insn & 0x0c000000) == 0x04000000)

return space_cccc_01xx(insn, asi);
return kprobe_decode_insn(insn, asi, arm_cccc_01xx_table, false);

else if ((insn & 0x0e000000) == 0x08000000)

Expand Down

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