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ARM: kprobes: Migrate ARM space_cccc_0111__1 to decoding tables

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Signed-off-by: Jon Medhurst <tixy@yxit.co.uk>
Acked-by: Nicolas Pitre <nicolas.pitre@linaro.org>
This commit is contained in:
Jon Medhurst 2011-06-08 18:09:36 +01:00 committed by Tixy
parent 2ce5d03307
commit ad2e81a78d
1 changed files with 34 additions and 44 deletions
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78
arch/arm/kernel/kprobes-arm.c
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@ -1373,57 +1373,47 @@ static const union decode_item arm_cccc_0110_____xxx1_table[] = {
DECODE_END DECODE_END
}; };
static enum kprobe_insn __kprobes static const union decode_item arm_cccc_0111_____xxx1_table[] = {
space_cccc_0111__1(kprobe_opcode_t insn, struct arch_specific_insn *asi) /* Media instructions */
{
/* Undef : cccc 0111 1111 xxxx xxxx xxxx 1111 xxxx */
if ((insn & 0x0ff000f0) == 0x03f000f0)
return INSN_REJECTED;
/* SMLALD : cccc 0111 0100 xxxx xxxx xxxx 00x1 xxxx */ /* UNDEFINED cccc 0111 1111 xxxx xxxx xxxx 1111 xxxx */
/* SMLSLD : cccc 0111 0100 xxxx xxxx xxxx 01x1 xxxx */ DECODE_REJECT (0x0ff000f0, 0x07f000f0),
if ((insn & 0x0ff00090) == 0x07400010)
return prep_emulate_rdhi16rdlo12rs8rm0_wflags(insn, asi);
/* SMLAD : cccc 0111 0000 xxxx xxxx xxxx 00x1 xxxx :Q */ /* SMLALD cccc 0111 0100 xxxx xxxx xxxx 00x1 xxxx */
/* SMUAD : cccc 0111 0000 xxxx 1111 xxxx 00x1 xxxx :Q */ /* SMLSLD cccc 0111 0100 xxxx xxxx xxxx 01x1 xxxx */
/* SMLSD : cccc 0111 0000 xxxx xxxx xxxx 01x1 xxxx :Q */ DECODE_CUSTOM (0x0ff00090, 0x07400010, prep_emulate_rdhi16rdlo12rs8rm0_wflags),
/* SMUSD : cccc 0111 0000 xxxx 1111 xxxx 01x1 xxxx : */
/* SMMLA : cccc 0111 0101 xxxx xxxx xxxx 00x1 xxxx : */
/* SMMUL : cccc 0111 0101 xxxx 1111 xxxx 00x1 xxxx : */
/* USADA8 : cccc 0111 1000 xxxx xxxx xxxx 0001 xxxx : */
/* USAD8 : cccc 0111 1000 xxxx 1111 xxxx 0001 xxxx : */
if ((insn & 0x0ff00090) == 0x07000010 ||
(insn & 0x0ff000d0) == 0x07500010 ||
(insn & 0x0ff000f0) == 0x07800010) {
if ((insn & 0x0000f000) == 0x0000f000) /* SMUAD cccc 0111 0000 xxxx 1111 xxxx 00x1 xxxx */
return prep_emulate_rd16rs8rm0_wflags(insn, asi); /* SMUSD cccc 0111 0000 xxxx 1111 xxxx 01x1 xxxx */
else DECODE_OR (0x0ff0f090, 0x0700f010),
return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi); /* SMMUL cccc 0111 0101 xxxx 1111 xxxx 00x1 xxxx */
} DECODE_OR (0x0ff0f0d0, 0x0750f010),
/* USAD8 cccc 0111 1000 xxxx 1111 xxxx 0001 xxxx */
DECODE_CUSTOM (0x0ff0f0f0, 0x0780f010, prep_emulate_rd16rs8rm0_wflags),
/* SMMLS : cccc 0111 0101 xxxx xxxx xxxx 11x1 xxxx : */ /* SMLAD cccc 0111 0000 xxxx xxxx xxxx 00x1 xxxx */
if ((insn & 0x0ff000d0) == 0x075000d0) /* SMLSD cccc 0111 0000 xxxx xxxx xxxx 01x1 xxxx */
return prep_emulate_rd16rn12rs8rm0_wflags(insn, asi); DECODE_OR (0x0ff00090, 0x07000010),
/* SMMLA cccc 0111 0101 xxxx xxxx xxxx 00x1 xxxx */
DECODE_OR (0x0ff000d0, 0x07500010),
/* USADA8 cccc 0111 1000 xxxx xxxx xxxx 0001 xxxx */
DECODE_CUSTOM (0x0ff000f0, 0x07800010, prep_emulate_rd16rn12rs8rm0_wflags),
/* SBFX : cccc 0111 101x xxxx xxxx xxxx x101 xxxx : */ /* SMMLS cccc 0111 0101 xxxx xxxx xxxx 11x1 xxxx */
/* UBFX : cccc 0111 111x xxxx xxxx xxxx x101 xxxx : */ DECODE_CUSTOM (0x0ff000d0, 0x075000d0, prep_emulate_rd16rn12rs8rm0_wflags),
if ((insn & 0x0fa00070) == 0x07a00050)
return prep_emulate_rd12rm0(insn, asi);
/* BFI : cccc 0111 110x xxxx xxxx xxxx x001 xxxx : */ /* SBFX cccc 0111 101x xxxx xxxx xxxx x101 xxxx */
/* BFC : cccc 0111 110x xxxx xxxx xxxx x001 1111 : */ /* UBFX cccc 0111 111x xxxx xxxx xxxx x101 xxxx */
if ((insn & 0x0fe00070) == 0x07c00010) { DECODE_CUSTOM (0x0fa00070, 0x07a00050, prep_emulate_rd12rm0),
if ((insn & 0x0000000f) == 0x0000000f) /* BFC cccc 0111 110x xxxx xxxx xxxx x001 1111 */
return prep_emulate_rd12_modify(insn, asi); DECODE_CUSTOM (0x0fe0007f, 0x07c0001f, prep_emulate_rd12_modify),
else
return prep_emulate_rd12rn0_modify(insn, asi);
}
return INSN_REJECTED; /* BFI cccc 0111 110x xxxx xxxx xxxx x001 xxxx */
} DECODE_CUSTOM (0x0fe00070, 0x07c00010, prep_emulate_rd12rn0_modify),
DECODE_END
};
static enum kprobe_insn __kprobes static enum kprobe_insn __kprobes
space_cccc_01xx(kprobe_opcode_t insn, struct arch_specific_insn *asi) space_cccc_01xx(kprobe_opcode_t insn, struct arch_specific_insn *asi)
@ -1532,7 +1522,7 @@ arm_kprobe_decode_insn(kprobe_opcode_t insn, struct arch_specific_insn *asi)
else if ((insn & 0x0f000010) == 0x07000010) else if ((insn & 0x0f000010) == 0x07000010)
return space_cccc_0111__1(insn, asi); return kprobe_decode_insn(insn, asi, arm_cccc_0111_____xxx1_table, false);
else if ((insn & 0x0c000000) == 0x04000000) else if ((insn & 0x0c000000) == 0x04000000)