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Merge tag 'for_russell/arm-be-probes' of git://git.linaro.org/people/taras.kondratiuk/linux into devel-stable

Browse Source 
It is reworked initial Ben's series for big endian support [1].
Dropped patches that are not directly related to probes and rebased
series on top of Dave Long's ARM uprobes series. Current set of
patches is enough to have functional BE kprobes and uprobes.

One ARM kprobe test fails on Cortex-A15 boards (TC2 and Keystone2 EVM),
while it passes on Pandaboard. The issue is not related to this series
and already present since v3.13-rc7.

v1..v2: Rebased series on top of Dave Long's ARM uprobes series.
        Now this series fixes both BE kprobes and BE uprobes.

Tested on Pandaboard ES and TI Keystone2 EVM.

pull req v1: http://www.spinics.net/lists/arm-kernel/msg300227.html
[1] http://www.spinics.net/lists/arm-kernel/msg285210.html
This commit is contained in:
Russell King 2014-04-01 23:30:12 +01:00
commit 98775936d3
8 changed files with 555 additions and 544 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

4
arch/arm/kernel/kprobes-common.c
View File

@ -13,6 +13,7 @@
#include <linux/kernel.h>
#include <linux/kprobes.h>
#include <asm/opcodes.h>
#include "kprobes.h"
@ -153,7 +154,8 @@ kprobe_decode_ldmstm(probes_opcode_t insn, struct arch_probes_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;
}

601
arch/arm/kernel/kprobes-test-arm.c
View File

File diff suppressed because it is too large Load Diff

435
arch/arm/kernel/kprobes-test-thumb.c
View File

@ -10,6 +10,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <asm/opcodes.h>
#include "kprobes-test.h"
@ -119,7 +120,7 @@ void kprobe_thumb16_test_cases(void)
TEST_R( "add sp" ", r",8,-8, "")
TEST_R( "add r",14,VAL1,", pc")
TEST_BF_R("add pc" ", r",0,2f-1f-8,"")
TEST_UNSUPPORTED(".short 0x44ff @ add pc, pc")
TEST_UNSUPPORTED(__inst_thumb16(0x44ff) " @ add pc, pc")
TEST_RR( "cmp r",3,VAL1,", r",8,VAL2,"")
TEST_RR( "cmp r",8,VAL2,", r",0,VAL1,"")
@ -150,7 +151,7 @@ void kprobe_thumb16_test_cases(void)
TEST_BF_R("blx r",0, 2f+1,"")
TEST_BB_R("blx r",14,2f+1,"")
TEST_UNSUPPORTED(".short 0x47f8 @ blx pc")
TEST_UNSUPPORTED(__inst_thumb16(0x47f8) " @ blx pc")
TEST_GROUP("Load from Literal Pool")
@ -237,8 +238,8 @@ DONT_TEST_IN_ITBLOCK(
TEST_R("rev r7, r",0, VAL2,"")
TEST_R("rev16 r0, r",7, VAL1,"")
TEST_R("rev16 r7, r",0, VAL2,"")
TEST_UNSUPPORTED(".short 0xba80")
TEST_UNSUPPORTED(".short 0xbabf")
TEST_UNSUPPORTED(__inst_thumb16(0xba80) "")
TEST_UNSUPPORTED(__inst_thumb16(0xbabf) "")
TEST_R("revsh r0, r",7, VAL1,"")
TEST_R("revsh r7, r",0, VAL2,"")
@ -272,8 +273,8 @@ DONT_TEST_IN_ITBLOCK(
TEST("nop")
TEST("wfi")
TEST_SUPPORTED("wfe")
TEST_UNSUPPORTED(".short 0xbf50") /* Unassigned hints */
TEST_UNSUPPORTED(".short 0xbff0") /* Unassigned hints */
TEST_UNSUPPORTED(__inst_thumb16(0xbf50) "") /* Unassigned hints */
TEST_UNSUPPORTED(__inst_thumb16(0xbff0) "") /* Unassigned hints */
#define TEST_IT(code, code2) \
TESTCASE_START(code) \
@ -310,8 +311,8 @@ CONDITION_INSTRUCTIONS(8,
TEST_BF("bgt 2f")
TEST_BB("blt 2b")
)
TEST_UNSUPPORTED(".short 0xde00")
TEST_UNSUPPORTED(".short 0xdeff")
TEST_UNSUPPORTED(__inst_thumb16(0xde00) "")
TEST_UNSUPPORTED(__inst_thumb16(0xdeff) "")
TEST_UNSUPPORTED("svc #0x00")
TEST_UNSUPPORTED("svc #0xff")
@ -380,13 +381,13 @@ void kprobe_thumb32_test_cases(void)
TEST_THUMB_TO_ARM_INTERWORK_P("ldmia r",0,14*4,", {r12,pc}")
TEST_THUMB_TO_ARM_INTERWORK_P("ldmia r",13,2*4,", {r0-r12,pc}")
TEST_UNSUPPORTED(".short 0xe88f,0x0101 @ stmia pc, {r0,r8}")
TEST_UNSUPPORTED(".short 0xe92f,0x5f00 @ stmdb pc!, {r8-r12,r14}")
TEST_UNSUPPORTED(".short 0xe8bd,0xc000 @ ldmia r13!, {r14,pc}")
TEST_UNSUPPORTED(".short 0xe93e,0xc000 @ ldmdb r14!, {r14,pc}")
TEST_UNSUPPORTED(".short 0xe8a7,0x3f00 @ stmia r7!, {r8-r12,sp}")
TEST_UNSUPPORTED(".short 0xe8a7,0x9f00 @ stmia r7!, {r8-r12,pc}")
TEST_UNSUPPORTED(".short 0xe93e,0x2010 @ ldmdb r14!, {r4,sp}")
TEST_UNSUPPORTED(__inst_thumb32(0xe88f0101) " @ stmia pc, {r0,r8}")
TEST_UNSUPPORTED(__inst_thumb32(0xe92f5f00) " @ stmdb pc!, {r8-r12,r14}")
TEST_UNSUPPORTED(__inst_thumb32(0xe8bdc000) " @ ldmia r13!, {r14,pc}")
TEST_UNSUPPORTED(__inst_thumb32(0xe93ec000) " @ ldmdb r14!, {r14,pc}")
TEST_UNSUPPORTED(__inst_thumb32(0xe8a73f00) " @ stmia r7!, {r8-r12,sp}")
TEST_UNSUPPORTED(__inst_thumb32(0xe8a79f00) " @ stmia r7!, {r8-r12,pc}")
TEST_UNSUPPORTED(__inst_thumb32(0xe93e2010) " @ ldmdb r14!, {r4,sp}")
TEST_GROUP("Load/store double or exclusive, table branch")
@ -402,12 +403,12 @@ void kprobe_thumb32_test_cases(void)
"3: .word "__stringify(VAL1)" \n\t"
" .word "__stringify(VAL2))
TEST_UNSUPPORTED(".short 0xe9ff,0xec04 @ ldrd r14, r12, [pc, #16]!")
TEST_UNSUPPORTED(".short 0xe8ff,0xec04 @ ldrd r14, r12, [pc], #16")
TEST_UNSUPPORTED(".short 0xe9d4,0xd800 @ ldrd sp, r8, [r4]")
TEST_UNSUPPORTED(".short 0xe9d4,0xf800 @ ldrd pc, r8, [r4]")
TEST_UNSUPPORTED(".short 0xe9d4,0x7d00 @ ldrd r7, sp, [r4]")
TEST_UNSUPPORTED(".short 0xe9d4,0x7f00 @ ldrd r7, pc, [r4]")
TEST_UNSUPPORTED(__inst_thumb32(0xe9ffec04) " @ ldrd r14, r12, [pc, #16]!")
TEST_UNSUPPORTED(__inst_thumb32(0xe8ffec04) " @ ldrd r14, r12, [pc], #16")
TEST_UNSUPPORTED(__inst_thumb32(0xe9d4d800) " @ ldrd sp, r8, [r4]")
TEST_UNSUPPORTED(__inst_thumb32(0xe9d4f800) " @ ldrd pc, r8, [r4]")
TEST_UNSUPPORTED(__inst_thumb32(0xe9d47d00) " @ ldrd r7, sp, [r4]")
TEST_UNSUPPORTED(__inst_thumb32(0xe9d47f00) " @ ldrd r7, pc, [r4]")
TEST_RRP("strd r",0, VAL1,", r",1, VAL2,", [r",1, 24,", #-16]")
TEST_RR( "strd r",12,VAL2,", r",14,VAL1,", [sp, #16]")
@ -415,8 +416,8 @@ void kprobe_thumb32_test_cases(void)
TEST_RR( "strd r",14,VAL2,", r",12,VAL1,", [sp, #16]!")
TEST_RRP("strd r",1, VAL1,", r",0, VAL2,", [r",7, 24,"], #16")
TEST_RR( "strd r",7, VAL2,", r",8, VAL1,", [sp], #-16")
TEST_UNSUPPORTED(".short 0xe9ef,0xec04 @ strd r14, r12, [pc, #16]!")
TEST_UNSUPPORTED(".short 0xe8ef,0xec04 @ strd r14, r12, [pc], #16")
TEST_UNSUPPORTED(__inst_thumb32(0xe9efec04) " @ strd r14, r12, [pc, #16]!")
TEST_UNSUPPORTED(__inst_thumb32(0xe8efec04) " @ strd r14, r12, [pc], #16")
TEST_RX("tbb [pc, r",0, (9f-(1f+4)),"]",
"9: \n\t"
@ -460,9 +461,9 @@ void kprobe_thumb32_test_cases(void)
"3: mvn r0, r0 \n\t"
"2: nop \n\t")
TEST_UNSUPPORTED(".short 0xe8d1,0xf01f @ tbh [r1, pc]")
TEST_UNSUPPORTED(".short 0xe8d1,0xf01d @ tbh [r1, sp]")
TEST_UNSUPPORTED(".short 0xe8dd,0xf012 @ tbh [sp, r2]")
TEST_UNSUPPORTED(__inst_thumb32(0xe8d1f01f) " @ tbh [r1, pc]")
TEST_UNSUPPORTED(__inst_thumb32(0xe8d1f01d) " @ tbh [r1, sp]")
TEST_UNSUPPORTED(__inst_thumb32(0xe8ddf012) " @ tbh [sp, r2]")
TEST_UNSUPPORTED("strexb r0, r1, [r2]")
TEST_UNSUPPORTED("strexh r0, r1, [r2]")
@ -540,40 +541,40 @@ void kprobe_thumb32_test_cases(void)
TEST_RR("pkhtb r0, r",0, HH1,", r",1, HH2,"")
TEST_RR("pkhtb r14,r",12, HH1,", r",10,HH2,", asr #2")
TEST_UNSUPPORTED(".short 0xea17,0x0f0d @ tst.w r7, sp")
TEST_UNSUPPORTED(".short 0xea17,0x0f0f @ tst.w r7, pc")
TEST_UNSUPPORTED(".short 0xea1d,0x0f07 @ tst.w sp, r7")
TEST_UNSUPPORTED(".short 0xea1f,0x0f07 @ tst.w pc, r7")
TEST_UNSUPPORTED(".short 0xf01d,0x1f08 @ tst sp, #0x00080008")
TEST_UNSUPPORTED(".short 0xf01f,0x1f08 @ tst pc, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xea170f0d) " @ tst.w r7, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xea170f0f) " @ tst.w r7, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xea1d0f07) " @ tst.w sp, r7")
TEST_UNSUPPORTED(__inst_thumb32(0xea1f0f07) " @ tst.w pc, r7")
TEST_UNSUPPORTED(__inst_thumb32(0xf01d1f08) " @ tst sp, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf01f1f08) " @ tst pc, #0x00080008")
TEST_UNSUPPORTED(".short 0xea97,0x0f0d @ teq.w r7, sp")
TEST_UNSUPPORTED(".short 0xea97,0x0f0f @ teq.w r7, pc")
TEST_UNSUPPORTED(".short 0xea9d,0x0f07 @ teq.w sp, r7")
TEST_UNSUPPORTED(".short 0xea9f,0x0f07 @ teq.w pc, r7")
TEST_UNSUPPORTED(".short 0xf09d,0x1f08 @ tst sp, #0x00080008")
TEST_UNSUPPORTED(".short 0xf09f,0x1f08 @ tst pc, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xea970f0d) " @ teq.w r7, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xea970f0f) " @ teq.w r7, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xea9d0f07) " @ teq.w sp, r7")
TEST_UNSUPPORTED(__inst_thumb32(0xea9f0f07) " @ teq.w pc, r7")
TEST_UNSUPPORTED(__inst_thumb32(0xf09d1f08) " @ tst sp, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf09f1f08) " @ tst pc, #0x00080008")
TEST_UNSUPPORTED(".short 0xeb17,0x0f0d @ cmn.w r7, sp")
TEST_UNSUPPORTED(".short 0xeb17,0x0f0f @ cmn.w r7, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xeb170f0d) " @ cmn.w r7, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xeb170f0f) " @ cmn.w r7, pc")
TEST_P("cmn.w sp, r",7,0,"")
TEST_UNSUPPORTED(".short 0xeb1f,0x0f07 @ cmn.w pc, r7")
TEST_UNSUPPORTED(__inst_thumb32(0xeb1f0f07) " @ cmn.w pc, r7")
TEST( "cmn sp, #0x00080008")
TEST_UNSUPPORTED(".short 0xf11f,0x1f08 @ cmn pc, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf11f1f08) " @ cmn pc, #0x00080008")
TEST_UNSUPPORTED(".short 0xebb7,0x0f0d @ cmp.w r7, sp")
TEST_UNSUPPORTED(".short 0xebb7,0x0f0f @ cmp.w r7, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xebb70f0d) " @ cmp.w r7, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xebb70f0f) " @ cmp.w r7, pc")
TEST_P("cmp.w sp, r",7,0,"")
TEST_UNSUPPORTED(".short 0xebbf,0x0f07 @ cmp.w pc, r7")
TEST_UNSUPPORTED(__inst_thumb32(0xebbf0f07) " @ cmp.w pc, r7")
TEST( "cmp sp, #0x00080008")
TEST_UNSUPPORTED(".short 0xf1bf,0x1f08 @ cmp pc, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf1bf1f08) " @ cmp pc, #0x00080008")
TEST_UNSUPPORTED(".short 0xea5f,0x070d @ movs.w r7, sp")
TEST_UNSUPPORTED(".short 0xea5f,0x070f @ movs.w r7, pc")
TEST_UNSUPPORTED(".short 0xea5f,0x0d07 @ movs.w sp, r7")
TEST_UNSUPPORTED(".short 0xea4f,0x0f07 @ mov.w pc, r7")
TEST_UNSUPPORTED(".short 0xf04f,0x1d08 @ mov sp, #0x00080008")
TEST_UNSUPPORTED(".short 0xf04f,0x1f08 @ mov pc, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xea5f070d) " @ movs.w r7, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xea5f070f) " @ movs.w r7, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xea5f0d07) " @ movs.w sp, r7")
TEST_UNSUPPORTED(__inst_thumb32(0xea4f0f07) " @ mov.w pc, r7")
TEST_UNSUPPORTED(__inst_thumb32(0xf04f1d08) " @ mov sp, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf04f1f08) " @ mov pc, #0x00080008")
TEST_R("add.w r0, sp, r",1, 4,"")
TEST_R("adds r0, sp, r",1, 4,", asl #3")
@ -581,15 +582,15 @@ void kprobe_thumb32_test_cases(void)
TEST_R("add r0, sp, r",1, 16,", ror #1")
TEST_R("add.w sp, sp, r",1, 4,"")
TEST_R("add sp, sp, r",1, 4,", asl #3")
TEST_UNSUPPORTED(".short 0xeb0d,0x1d01 @ add sp, sp, r1, asl #4")
TEST_UNSUPPORTED(".short 0xeb0d,0x0d71 @ add sp, sp, r1, ror #1")
TEST_UNSUPPORTED(__inst_thumb32(0xeb0d1d01) " @ add sp, sp, r1, asl #4")
TEST_UNSUPPORTED(__inst_thumb32(0xeb0d0d71) " @ add sp, sp, r1, ror #1")
TEST( "add.w r0, sp, #24")
TEST( "add.w sp, sp, #24")
TEST_UNSUPPORTED(".short 0xeb0d,0x0f01 @ add pc, sp, r1")
TEST_UNSUPPORTED(".short 0xeb0d,0x000f @ add r0, sp, pc")
TEST_UNSUPPORTED(".short 0xeb0d,0x000d @ add r0, sp, sp")
TEST_UNSUPPORTED(".short 0xeb0d,0x0d0f @ add sp, sp, pc")
TEST_UNSUPPORTED(".short 0xeb0d,0x0d0d @ add sp, sp, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xeb0d0f01) " @ add pc, sp, r1")
TEST_UNSUPPORTED(__inst_thumb32(0xeb0d000f) " @ add r0, sp, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xeb0d000d) " @ add r0, sp, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xeb0d0d0f) " @ add sp, sp, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xeb0d0d0d) " @ add sp, sp, sp")
TEST_R("sub.w r0, sp, r",1, 4,"")
TEST_R("subs r0, sp, r",1, 4,", asl #3")
@ -597,54 +598,54 @@ void kprobe_thumb32_test_cases(void)
TEST_R("sub r0, sp, r",1, 16,", ror #1")
TEST_R("sub.w sp, sp, r",1, 4,"")
TEST_R("sub sp, sp, r",1, 4,", asl #3")
TEST_UNSUPPORTED(".short 0xebad,0x1d01 @ sub sp, sp, r1, asl #4")
TEST_UNSUPPORTED(".short 0xebad,0x0d71 @ sub sp, sp, r1, ror #1")
TEST_UNSUPPORTED(".short 0xebad,0x0f01 @ sub pc, sp, r1")
TEST_UNSUPPORTED(__inst_thumb32(0xebad1d01) " @ sub sp, sp, r1, asl #4")
TEST_UNSUPPORTED(__inst_thumb32(0xebad0d71) " @ sub sp, sp, r1, ror #1")
TEST_UNSUPPORTED(__inst_thumb32(0xebad0f01) " @ sub pc, sp, r1")
TEST( "sub.w r0, sp, #24")
TEST( "sub.w sp, sp, #24")
TEST_UNSUPPORTED(".short 0xea02,0x010f @ and r1, r2, pc")
TEST_UNSUPPORTED(".short 0xea0f,0x0103 @ and r1, pc, r3")
TEST_UNSUPPORTED(".short 0xea02,0x0f03 @ and pc, r2, r3")
TEST_UNSUPPORTED(".short 0xea02,0x010d @ and r1, r2, sp")
TEST_UNSUPPORTED(".short 0xea0d,0x0103 @ and r1, sp, r3")
TEST_UNSUPPORTED(".short 0xea02,0x0d03 @ and sp, r2, r3")
TEST_UNSUPPORTED(".short 0xf00d,0x1108 @ and r1, sp, #0x00080008")
TEST_UNSUPPORTED(".short 0xf00f,0x1108 @ and r1, pc, #0x00080008")
TEST_UNSUPPORTED(".short 0xf002,0x1d08 @ and sp, r8, #0x00080008")
TEST_UNSUPPORTED(".short 0xf002,0x1f08 @ and pc, r8, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xea02010f) " @ and r1, r2, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xea0f0103) " @ and r1, pc, r3")
TEST_UNSUPPORTED(__inst_thumb32(0xea020f03) " @ and pc, r2, r3")
TEST_UNSUPPORTED(__inst_thumb32(0xea02010d) " @ and r1, r2, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xea0d0103) " @ and r1, sp, r3")
TEST_UNSUPPORTED(__inst_thumb32(0xea020d03) " @ and sp, r2, r3")
TEST_UNSUPPORTED(__inst_thumb32(0xf00d1108) " @ and r1, sp, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf00f1108) " @ and r1, pc, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf0021d08) " @ and sp, r8, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf0021f08) " @ and pc, r8, #0x00080008")
TEST_UNSUPPORTED(".short 0xeb02,0x010f @ add r1, r2, pc")
TEST_UNSUPPORTED(".short 0xeb0f,0x0103 @ add r1, pc, r3")
TEST_UNSUPPORTED(".short 0xeb02,0x0f03 @ add pc, r2, r3")
TEST_UNSUPPORTED(".short 0xeb02,0x010d @ add r1, r2, sp")
TEST_SUPPORTED( ".short 0xeb0d,0x0103 @ add r1, sp, r3")
TEST_UNSUPPORTED(".short 0xeb02,0x0d03 @ add sp, r2, r3")
TEST_SUPPORTED( ".short 0xf10d,0x1108 @ add r1, sp, #0x00080008")
TEST_UNSUPPORTED(".short 0xf10d,0x1f08 @ add pc, sp, #0x00080008")
TEST_UNSUPPORTED(".short 0xf10f,0x1108 @ add r1, pc, #0x00080008")
TEST_UNSUPPORTED(".short 0xf102,0x1d08 @ add sp, r8, #0x00080008")
TEST_UNSUPPORTED(".short 0xf102,0x1f08 @ add pc, r8, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xeb02010f) " @ add r1, r2, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xeb0f0103) " @ add r1, pc, r3")
TEST_UNSUPPORTED(__inst_thumb32(0xeb020f03) " @ add pc, r2, r3")
TEST_UNSUPPORTED(__inst_thumb32(0xeb02010d) " @ add r1, r2, sp")
TEST_SUPPORTED( __inst_thumb32(0xeb0d0103) " @ add r1, sp, r3")
TEST_UNSUPPORTED(__inst_thumb32(0xeb020d03) " @ add sp, r2, r3")
TEST_SUPPORTED( __inst_thumb32(0xf10d1108) " @ add r1, sp, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf10d1f08) " @ add pc, sp, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf10f1108) " @ add r1, pc, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf1021d08) " @ add sp, r8, #0x00080008")
TEST_UNSUPPORTED(__inst_thumb32(0xf1021f08) " @ add pc, r8, #0x00080008")
TEST_UNSUPPORTED(".short 0xeaa0,0x0000")
TEST_UNSUPPORTED(".short 0xeaf0,0x0000")
TEST_UNSUPPORTED(".short 0xeb20,0x0000")
TEST_UNSUPPORTED(".short 0xeb80,0x0000")
TEST_UNSUPPORTED(".short 0xebe0,0x0000")
TEST_UNSUPPORTED(__inst_thumb32(0xeaa00000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xeaf00000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xeb200000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xeb800000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xebe00000) "")
TEST_UNSUPPORTED(".short 0xf0a0,0x0000")
TEST_UNSUPPORTED(".short 0xf0c0,0x0000")
TEST_UNSUPPORTED(".short 0xf0f0,0x0000")
TEST_UNSUPPORTED(".short 0xf120,0x0000")
TEST_UNSUPPORTED(".short 0xf180,0x0000")
TEST_UNSUPPORTED(".short 0xf1e0,0x0000")
TEST_UNSUPPORTED(__inst_thumb32(0xf0a00000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xf0c00000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xf0f00000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xf1200000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xf1800000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xf1e00000) "")
TEST_GROUP("Coprocessor instructions")
TEST_UNSUPPORTED(".short 0xec00,0x0000")
TEST_UNSUPPORTED(".short 0xeff0,0x0000")
TEST_UNSUPPORTED(".short 0xfc00,0x0000")
TEST_UNSUPPORTED(".short 0xfff0,0x0000")
TEST_UNSUPPORTED(__inst_thumb32(0xec000000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xeff00000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xfc000000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xfff00000) "")
TEST_GROUP("Data-processing (plain binary immediate)")
@ -652,92 +653,92 @@ void kprobe_thumb32_test_cases(void)
TEST( "addw r14, sp, #0xf5a")
TEST( "addw sp, sp, #0x20")
TEST( "addw r7, pc, #0x888")
TEST_UNSUPPORTED(".short 0xf20f,0x1f20 @ addw pc, pc, #0x120")
TEST_UNSUPPORTED(".short 0xf20d,0x1f20 @ addw pc, sp, #0x120")
TEST_UNSUPPORTED(".short 0xf20f,0x1d20 @ addw sp, pc, #0x120")
TEST_UNSUPPORTED(".short 0xf200,0x1d20 @ addw sp, r0, #0x120")
TEST_UNSUPPORTED(__inst_thumb32(0xf20f1f20) " @ addw pc, pc, #0x120")
TEST_UNSUPPORTED(__inst_thumb32(0xf20d1f20) " @ addw pc, sp, #0x120")
TEST_UNSUPPORTED(__inst_thumb32(0xf20f1d20) " @ addw sp, pc, #0x120")
TEST_UNSUPPORTED(__inst_thumb32(0xf2001d20) " @ addw sp, r0, #0x120")
TEST_R("subw r0, r",1, VAL1,", #0x123")
TEST( "subw r14, sp, #0xf5a")
TEST( "subw sp, sp, #0x20")
TEST( "subw r7, pc, #0x888")
TEST_UNSUPPORTED(".short 0xf2af,0x1f20 @ subw pc, pc, #0x120")
TEST_UNSUPPORTED(".short 0xf2ad,0x1f20 @ subw pc, sp, #0x120")
TEST_UNSUPPORTED(".short 0xf2af,0x1d20 @ subw sp, pc, #0x120")
TEST_UNSUPPORTED(".short 0xf2a0,0x1d20 @ subw sp, r0, #0x120")
TEST_UNSUPPORTED(__inst_thumb32(0xf2af1f20) " @ subw pc, pc, #0x120")
TEST_UNSUPPORTED(__inst_thumb32(0xf2ad1f20) " @ subw pc, sp, #0x120")
TEST_UNSUPPORTED(__inst_thumb32(0xf2af1d20) " @ subw sp, pc, #0x120")
TEST_UNSUPPORTED(__inst_thumb32(0xf2a01d20) " @ subw sp, r0, #0x120")
TEST("movw r0, #0")
TEST("movw r0, #0xffff")
TEST("movw lr, #0xffff")
TEST_UNSUPPORTED(".short 0xf240,0x0d00 @ movw sp, #0")
TEST_UNSUPPORTED(".short 0xf240,0x0f00 @ movw pc, #0")
TEST_UNSUPPORTED(__inst_thumb32(0xf2400d00) " @ movw sp, #0")
TEST_UNSUPPORTED(__inst_thumb32(0xf2400f00) " @ movw pc, #0")
TEST_R("movt r",0, VAL1,", #0")
TEST_R("movt r",0, VAL2,", #0xffff")
TEST_R("movt r",14,VAL1,", #0xffff")
TEST_UNSUPPORTED(".short 0xf2c0,0x0d00 @ movt sp, #0")
TEST_UNSUPPORTED(".short 0xf2c0,0x0f00 @ movt pc, #0")
TEST_UNSUPPORTED(__inst_thumb32(0xf2c00d00) " @ movt sp, #0")
TEST_UNSUPPORTED(__inst_thumb32(0xf2c00f00) " @ movt pc, #0")
TEST_R( "ssat r0, #24, r",0, VAL1,"")
TEST_R( "ssat r14, #24, r",12, VAL2,"")
TEST_R( "ssat r0, #24, r",0, VAL1,", lsl #8")
TEST_R( "ssat r14, #24, r",12, VAL2,", asr #8")
TEST_UNSUPPORTED(".short 0xf30c,0x0d17 @ ssat sp, #24, r12")
TEST_UNSUPPORTED(".short 0xf30c,0x0f17 @ ssat pc, #24, r12")
TEST_UNSUPPORTED(".short 0xf30d,0x0c17 @ ssat r12, #24, sp")
TEST_UNSUPPORTED(".short 0xf30f,0x0c17 @ ssat r12, #24, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xf30c0d17) " @ ssat sp, #24, r12")
TEST_UNSUPPORTED(__inst_thumb32(0xf30c0f17) " @ ssat pc, #24, r12")
TEST_UNSUPPORTED(__inst_thumb32(0xf30d0c17) " @ ssat r12, #24, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xf30f0c17) " @ ssat r12, #24, pc")
TEST_R( "usat r0, #24, r",0, VAL1,"")
TEST_R( "usat r14, #24, r",12, VAL2,"")
TEST_R( "usat r0, #24, r",0, VAL1,", lsl #8")
TEST_R( "usat r14, #24, r",12, VAL2,", asr #8")
TEST_UNSUPPORTED(".short 0xf38c,0x0d17 @ usat sp, #24, r12")
TEST_UNSUPPORTED(".short 0xf38c,0x0f17 @ usat pc, #24, r12")
TEST_UNSUPPORTED(".short 0xf38d,0x0c17 @ usat r12, #24, sp")
TEST_UNSUPPORTED(".short 0xf38f,0x0c17 @ usat r12, #24, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xf38c0d17) " @ usat sp, #24, r12")
TEST_UNSUPPORTED(__inst_thumb32(0xf38c0f17) " @ usat pc, #24, r12")
TEST_UNSUPPORTED(__inst_thumb32(0xf38d0c17) " @ usat r12, #24, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xf38f0c17) " @ usat r12, #24, pc")
TEST_R( "ssat16 r0, #12, r",0, HH1,"")
TEST_R( "ssat16 r14, #12, r",12, HH2,"")
TEST_UNSUPPORTED(".short 0xf32c,0x0d0b @ ssat16 sp, #12, r12")
TEST_UNSUPPORTED(".short 0xf32c,0x0f0b @ ssat16 pc, #12, r12")
TEST_UNSUPPORTED(".short 0xf32d,0x0c0b @ ssat16 r12, #12, sp")
TEST_UNSUPPORTED(".short 0xf32f,0x0c0b @ ssat16 r12, #12, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xf32c0d0b) " @ ssat16 sp, #12, r12")
TEST_UNSUPPORTED(__inst_thumb32(0xf32c0f0b) " @ ssat16 pc, #12, r12")
TEST_UNSUPPORTED(__inst_thumb32(0xf32d0c0b) " @ ssat16 r12, #12, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xf32f0c0b) " @ ssat16 r12, #12, pc")
TEST_R( "usat16 r0, #12, r",0, HH1,"")
TEST_R( "usat16 r14, #12, r",12, HH2,"")
TEST_UNSUPPORTED(".short 0xf3ac,0x0d0b @ usat16 sp, #12, r12")
TEST_UNSUPPORTED(".short 0xf3ac,0x0f0b @ usat16 pc, #12, r12")
TEST_UNSUPPORTED(".short 0xf3ad,0x0c0b @ usat16 r12, #12, sp")
TEST_UNSUPPORTED(".short 0xf3af,0x0c0b @ usat16 r12, #12, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xf3ac0d0b) " @ usat16 sp, #12, r12")
TEST_UNSUPPORTED(__inst_thumb32(0xf3ac0f0b) " @ usat16 pc, #12, r12")
TEST_UNSUPPORTED(__inst_thumb32(0xf3ad0c0b) " @ usat16 r12, #12, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xf3af0c0b) " @ usat16 r12, #12, pc")
TEST_R( "sbfx r0, r",0 , VAL1,", #0, #31")
TEST_R( "sbfx r14, r",12, VAL2,", #8, #16")
TEST_R( "sbfx r4, r",10, VAL1,", #16, #15")
TEST_UNSUPPORTED(".short 0xf34c,0x2d0f @ sbfx sp, r12, #8, #16")
TEST_UNSUPPORTED(".short 0xf34c,0x2f0f @ sbfx pc, r12, #8, #16")
TEST_UNSUPPORTED(".short 0xf34d,0x2c0f @ sbfx r12, sp, #8, #16")
TEST_UNSUPPORTED(".short 0xf34f,0x2c0f @ sbfx r12, pc, #8, #16")
TEST_UNSUPPORTED(__inst_thumb32(0xf34c2d0f) " @ sbfx sp, r12, #8, #16")
TEST_UNSUPPORTED(__inst_thumb32(0xf34c2f0f) " @ sbfx pc, r12, #8, #16")
TEST_UNSUPPORTED(__inst_thumb32(0xf34d2c0f) " @ sbfx r12, sp, #8, #16")
TEST_UNSUPPORTED(__inst_thumb32(0xf34f2c0f) " @ sbfx r12, pc, #8, #16")
TEST_R( "ubfx r0, r",0 , VAL1,", #0, #31")
TEST_R( "ubfx r14, r",12, VAL2,", #8, #16")
TEST_R( "ubfx r4, r",10, VAL1,", #16, #15")
TEST_UNSUPPORTED(".short 0xf3cc,0x2d0f @ ubfx sp, r12, #8, #16")
TEST_UNSUPPORTED(".short 0xf3cc,0x2f0f @ ubfx pc, r12, #8, #16")
TEST_UNSUPPORTED(".short 0xf3cd,0x2c0f @ ubfx r12, sp, #8, #16")
TEST_UNSUPPORTED(".short 0xf3cf,0x2c0f @ ubfx r12, pc, #8, #16")
TEST_UNSUPPORTED(__inst_thumb32(0xf3cc2d0f) " @ ubfx sp, r12, #8, #16")
TEST_UNSUPPORTED(__inst_thumb32(0xf3cc2f0f) " @ ubfx pc, r12, #8, #16")
TEST_UNSUPPORTED(__inst_thumb32(0xf3cd2c0f) " @ ubfx r12, sp, #8, #16")
TEST_UNSUPPORTED(__inst_thumb32(0xf3cf2c0f) " @ ubfx r12, pc, #8, #16")
TEST_R( "bfc r",0, VAL1,", #4, #20")
TEST_R( "bfc r",14,VAL2,", #4, #20")
TEST_R( "bfc r",7, VAL1,", #0, #31")
TEST_R( "bfc r",8, VAL2,", #0, #31")
TEST_UNSUPPORTED(".short 0xf36f,0x0d1e @ bfc sp, #0, #31")
TEST_UNSUPPORTED(".short 0xf36f,0x0f1e @ bfc pc, #0, #31")
TEST_UNSUPPORTED(__inst_thumb32(0xf36f0d1e) " @ bfc sp, #0, #31")
TEST_UNSUPPORTED(__inst_thumb32(0xf36f0f1e) " @ bfc pc, #0, #31")
TEST_RR( "bfi r",0, VAL1,", r",0 , VAL2,", #0, #31")
TEST_RR( "bfi r",12,VAL1,", r",14 , VAL2,", #4, #20")
TEST_UNSUPPORTED(".short 0xf36e,0x1d17 @ bfi sp, r14, #4, #20")
TEST_UNSUPPORTED(".short 0xf36e,0x1f17 @ bfi pc, r14, #4, #20")
TEST_UNSUPPORTED(".short 0xf36d,0x1e17 @ bfi r14, sp, #4, #20")
TEST_UNSUPPORTED(__inst_thumb32(0xf36e1d17) " @ bfi sp, r14, #4, #20")
TEST_UNSUPPORTED(__inst_thumb32(0xf36e1f17) " @ bfi pc, r14, #4, #20")
TEST_UNSUPPORTED(__inst_thumb32(0xf36d1e17) " @ bfi r14, sp, #4, #20")
TEST_GROUP("Branches and miscellaneous control")
@ -775,14 +776,14 @@ CONDITION_INSTRUCTIONS(22,
TEST("mrs r0, cpsr")
TEST("mrs r14, cpsr")
TEST_UNSUPPORTED(".short 0xf3ef,0x8d00 @ mrs sp, spsr")
TEST_UNSUPPORTED(".short 0xf3ef,0x8f00 @ mrs pc, spsr")
TEST_UNSUPPORTED(__inst_thumb32(0xf3ef8d00) " @ mrs sp, spsr")
TEST_UNSUPPORTED(__inst_thumb32(0xf3ef8f00) " @ mrs pc, spsr")
TEST_UNSUPPORTED("mrs r0, spsr")
TEST_UNSUPPORTED("mrs lr, spsr")
TEST_UNSUPPORTED(".short 0xf7f0,0x8000 @ smc #0")
TEST_UNSUPPORTED(__inst_thumb32(0xf7f08000) " @ smc #0")
TEST_UNSUPPORTED(".short 0xf7f0,0xa000 @ undefeined")
TEST_UNSUPPORTED(__inst_thumb32(0xf7f0a000) " @ undefeined")
TEST_BF( "b.w 2f")
TEST_BB( "b.w 2b")
@ -829,15 +830,15 @@ CONDITION_INSTRUCTIONS(22,
SINGLE_STORE("")
TEST("str sp, [sp]")
TEST_UNSUPPORTED(".short 0xf8cf,0xe000 @ str r14, [pc]")
TEST_UNSUPPORTED(".short 0xf8ce,0xf000 @ str pc, [r14]")
TEST_UNSUPPORTED(__inst_thumb32(0xf8cfe000) " @ str r14, [pc]")
TEST_UNSUPPORTED(__inst_thumb32(0xf8cef000) " @ str pc, [r14]")
TEST_GROUP("Advanced SIMD element or structure load/store instructions")
TEST_UNSUPPORTED(".short 0xf900,0x0000")
TEST_UNSUPPORTED(".short 0xf92f,0xffff")
TEST_UNSUPPORTED(".short 0xf980,0x0000")
TEST_UNSUPPORTED(".short 0xf9ef,0xffff")
TEST_UNSUPPORTED(__inst_thumb32(0xf9000000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xf92fffff) "")
TEST_UNSUPPORTED(__inst_thumb32(0xf9800000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xf9efffff) "")
TEST_GROUP("Load single data item and memory hints")
@ -881,20 +882,20 @@ CONDITION_INSTRUCTIONS(22,
TEST_SUPPORTED("ldr sp, 99f")
TEST_SUPPORTED("ldr pc, 99f")
TEST_UNSUPPORTED(".short 0xf854,0x700d @ ldr r7, [r4, sp]")
TEST_UNSUPPORTED(".short 0xf854,0x700f @ ldr r7, [r4, pc]")
TEST_UNSUPPORTED(".short 0xf814,0x700d @ ldrb r7, [r4, sp]")
TEST_UNSUPPORTED(".short 0xf814,0x700f @ ldrb r7, [r4, pc]")
TEST_UNSUPPORTED(".short 0xf89f,0xd004 @ ldrb sp, 99f")
TEST_UNSUPPORTED(".short 0xf814,0xd008 @ ldrb sp, [r4, r8]")
TEST_UNSUPPORTED(".short 0xf894,0xd000 @ ldrb sp, [r4]")
TEST_UNSUPPORTED(__inst_thumb32(0xf854700d) " @ ldr r7, [r4, sp]")
TEST_UNSUPPORTED(__inst_thumb32(0xf854700f) " @ ldr r7, [r4, pc]")
TEST_UNSUPPORTED(__inst_thumb32(0xf814700d) " @ ldrb r7, [r4, sp]")
TEST_UNSUPPORTED(__inst_thumb32(0xf814700f) " @ ldrb r7, [r4, pc]")
TEST_UNSUPPORTED(__inst_thumb32(0xf89fd004) " @ ldrb sp, 99f")
TEST_UNSUPPORTED(__inst_thumb32(0xf814d008) " @ ldrb sp, [r4, r8]")
TEST_UNSUPPORTED(__inst_thumb32(0xf894d000) " @ ldrb sp, [r4]")
TEST_UNSUPPORTED(".short 0xf860,0x0000") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xf9ff,0xffff") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xf950,0x0000") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xf95f,0xffff") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xf800,0x0800") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xf97f,0xfaff") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xf8600000) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xf9ffffff) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xf9500000) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xf95fffff) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xf8000800) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xf97ffaff) "") /* Unallocated space */
TEST( "pli [pc, #4]")
TEST( "pli [pc, #-4]")
@ -902,22 +903,22 @@ CONDITION_INSTRUCTIONS(22,
TEST( "pld [pc, #-4]")
TEST_P( "pld [r",0,-1024,", #1024]")
TEST( ".short 0xf8b0,0xf400 @ pldw [r0, #1024]")
TEST( __inst_thumb32(0xf8b0f400) " @ pldw [r0, #1024]")
TEST_P( "pli [r",4, 0b,", #1024]")
TEST_P( "pld [r",7, 120,", #-120]")
TEST( ".short 0xf837,0xfc78 @ pldw [r7, #-120]")
TEST( __inst_thumb32(0xf837fc78) " @ pldw [r7, #-120]")
TEST_P( "pli [r",11,120,", #-120]")
TEST( "pld [sp, #0]")
TEST_PR("pld [r",7, 24, ", r",0, 16,"]")
TEST_PR("pld [r",8, 24, ", r",12,16,", lsl #3]")
TEST_SUPPORTED(".short 0xf837,0xf000 @ pldw [r7, r0]")
TEST_SUPPORTED(".short 0xf838,0xf03c @ pldw [r8, r12, lsl #3]");
TEST_SUPPORTED(__inst_thumb32(0xf837f000) " @ pldw [r7, r0]")
TEST_SUPPORTED(__inst_thumb32(0xf838f03c) " @ pldw [r8, r12, lsl #3]");
TEST_RR("pli [r",12,0b,", r",0, 16,"]")
TEST_RR("pli [r",0, 0b,", r",12,16,", lsl #3]")
TEST_R( "pld [sp, r",1, 16,"]")
TEST_UNSUPPORTED(".short 0xf817,0xf00d @pld [r7, sp]")
TEST_UNSUPPORTED(".short 0xf817,0xf00f @pld [r7, pc]")
TEST_UNSUPPORTED(__inst_thumb32(0xf817f00d) " @pld [r7, sp]")
TEST_UNSUPPORTED(__inst_thumb32(0xf817f00f) " @pld [r7, pc]")
TEST_GROUP("Data-processing (register)")
@ -934,21 +935,21 @@ CONDITION_INSTRUCTIONS(22,
SHIFTS32("ror")
SHIFTS32("rors")
TEST_UNSUPPORTED(".short 0xfa01,0xff02 @ lsl pc, r1, r2")
TEST_UNSUPPORTED(".short 0xfa01,0xfd02 @ lsl sp, r1, r2")
TEST_UNSUPPORTED(".short 0xfa0f,0xf002 @ lsl r0, pc, r2")
TEST_UNSUPPORTED(".short 0xfa0d,0xf002 @ lsl r0, sp, r2")
TEST_UNSUPPORTED(".short 0xfa01,0xf00f @ lsl r0, r1, pc")
TEST_UNSUPPORTED(".short 0xfa01,0xf00d @ lsl r0, r1, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xfa01ff02) " @ lsl pc, r1, r2")
TEST_UNSUPPORTED(__inst_thumb32(0xfa01fd02) " @ lsl sp, r1, r2")
TEST_UNSUPPORTED(__inst_thumb32(0xfa0ff002) " @ lsl r0, pc, r2")
TEST_UNSUPPORTED(__inst_thumb32(0xfa0df002) " @ lsl r0, sp, r2")
TEST_UNSUPPORTED(__inst_thumb32(0xfa01f00f) " @ lsl r0, r1, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xfa01f00d) " @ lsl r0, r1, sp")
TEST_RR( "sxtah r0, r",0, HH1,", r",1, HH2,"")
TEST_RR( "sxtah r14,r",12, HH2,", r",10,HH1,", ror #8")
TEST_R( "sxth r8, r",7, HH1,"")
TEST_UNSUPPORTED(".short 0xfa0f,0xff87 @ sxth pc, r7");
TEST_UNSUPPORTED(".short 0xfa0f,0xfd87 @ sxth sp, r7");
TEST_UNSUPPORTED(".short 0xfa0f,0xf88f @ sxth r8, pc");
TEST_UNSUPPORTED(".short 0xfa0f,0xf88d @ sxth r8, sp");
TEST_UNSUPPORTED(__inst_thumb32(0xfa0fff87) " @ sxth pc, r7");
TEST_UNSUPPORTED(__inst_thumb32(0xfa0ffd87) " @ sxth sp, r7");
TEST_UNSUPPORTED(__inst_thumb32(0xfa0ff88f) " @ sxth r8, pc");
TEST_UNSUPPORTED(__inst_thumb32(0xfa0ff88d) " @ sxth r8, sp");
TEST_RR( "uxtah r0, r",0, HH1,", r",1, HH2,"")
TEST_RR( "uxtah r14,r",12, HH2,", r",10,HH1,", ror #8")
@ -970,8 +971,8 @@ CONDITION_INSTRUCTIONS(22,
TEST_RR( "uxtab r14,r",12, HH2,", r",10,HH1,", ror #8")
TEST_R( "uxtb r8, r",7, HH1,"")
TEST_UNSUPPORTED(".short 0xfa60,0x00f0")
TEST_UNSUPPORTED(".short 0xfa7f,0xffff")
TEST_UNSUPPORTED(__inst_thumb32(0xfa6000f0) "")
TEST_UNSUPPORTED(__inst_thumb32(0xfa7fffff) "")
#define PARALLEL_ADD_SUB(op) \
TEST_RR( op"add16 r0, r",0, HH1,", r",1, HH2,"") \
@ -1019,10 +1020,10 @@ CONDITION_INSTRUCTIONS(22,
TEST_R("revsh.w r0, r",0, VAL1,"")
TEST_R("revsh r14, r",12, VAL2,"")
TEST_UNSUPPORTED(".short 0xfa9c,0xff8c @ rev pc, r12");
TEST_UNSUPPORTED(".short 0xfa9c,0xfd8c @ rev sp, r12");
TEST_UNSUPPORTED(".short 0xfa9f,0xfe8f @ rev r14, pc");
TEST_UNSUPPORTED(".short 0xfa9d,0xfe8d @ rev r14, sp");
TEST_UNSUPPORTED(__inst_thumb32(0xfa9cff8c) " @ rev pc, r12");
TEST_UNSUPPORTED(__inst_thumb32(0xfa9cfd8c) " @ rev sp, r12");
TEST_UNSUPPORTED(__inst_thumb32(0xfa9ffe8f) " @ rev r14, pc");
TEST_UNSUPPORTED(__inst_thumb32(0xfa9dfe8d) " @ rev r14, sp");
TEST_RR("sel r0, r",0, VAL1,", r",1, VAL2,"")
TEST_RR("sel r14, r",12,VAL1,", r",10, VAL2,"")
@ -1031,31 +1032,31 @@ CONDITION_INSTRUCTIONS(22,
TEST_R("clz r7, r",14,0x1,"")
TEST_R("clz lr, r",7, 0xffffffff,"")
TEST_UNSUPPORTED(".short 0xfa80,0xf030") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xfaff,0xff7f") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xfab0,0xf000") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xfaff,0xff7f") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xfa80f030) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xfaffff7f) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xfab0f000) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xfaffff7f) "") /* Unallocated space */
TEST_GROUP("Multiply, multiply accumulate, and absolute difference operations")
TEST_RR( "mul r0, r",1, VAL1,", r",2, VAL2,"")
TEST_RR( "mul r7, r",8, VAL2,", r",9, VAL2,"")
TEST_UNSUPPORTED(".short 0xfb08,0xff09 @ mul pc, r8, r9")
TEST_UNSUPPORTED(".short 0xfb08,0xfd09 @ mul sp, r8, r9")
TEST_UNSUPPORTED(".short 0xfb0f,0xf709 @ mul r7, pc, r9")
TEST_UNSUPPORTED(".short 0xfb0d,0xf709 @ mul r7, sp, r9")
TEST_UNSUPPORTED(".short 0xfb08,0xf70f @ mul r7, r8, pc")
TEST_UNSUPPORTED(".short 0xfb08,0xf70d @ mul r7, r8, sp")
TEST_UNSUPPORTED(__inst_thumb32(0xfb08ff09) " @ mul pc, r8, r9")
TEST_UNSUPPORTED(__inst_thumb32(0xfb08fd09) " @ mul sp, r8, r9")
TEST_UNSUPPORTED(__inst_thumb32(0xfb0ff709) " @ mul r7, pc, r9")
TEST_UNSUPPORTED(__inst_thumb32(0xfb0df709) " @ mul r7, sp, r9")
TEST_UNSUPPORTED(__inst_thumb32(0xfb08f70f) " @ mul r7, r8, pc")
TEST_UNSUPPORTED(__inst_thumb32(0xfb08f70d) " @ mul r7, r8, sp")
TEST_RRR( "mla r0, r",1, VAL1,", r",2, VAL2,", r",3, VAL3,"")
TEST_RRR( "mla r7, r",8, VAL3,", r",9, VAL1,", r",10, VAL2,"")
TEST_UNSUPPORTED(".short 0xfb08,0xaf09 @ mla pc, r8, r9, r10");
TEST_UNSUPPORTED(".short 0xfb08,0xad09 @ mla sp, r8, r9, r10");
TEST_UNSUPPORTED(".short 0xfb0f,0xa709 @ mla r7, pc, r9, r10");
TEST_UNSUPPORTED(".short 0xfb0d,0xa709 @ mla r7, sp, r9, r10");
TEST_UNSUPPORTED(".short 0xfb08,0xa70f @ mla r7, r8, pc, r10");
TEST_UNSUPPORTED(".short 0xfb08,0xa70d @ mla r7, r8, sp, r10");
TEST_UNSUPPORTED(".short 0xfb08,0xd709 @ mla r7, r8, r9, sp");
TEST_UNSUPPORTED(__inst_thumb32(0xfb08af09) " @ mla pc, r8, r9, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb08ad09) " @ mla sp, r8, r9, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb0fa709) " @ mla r7, pc, r9, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb0da709) " @ mla r7, sp, r9, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb08a70f) " @ mla r7, r8, pc, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb08a70d) " @ mla r7, r8, sp, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb08d709) " @ mla r7, r8, r9, sp");
TEST_RRR( "mls r0, r",1, VAL1,", r",2, VAL2,", r",3, VAL3,"")
TEST_RRR( "mls r7, r",8, VAL3,", r",9, VAL1,", r",10, VAL2,"")
@ -1123,25 +1124,25 @@ CONDITION_INSTRUCTIONS(22,
TEST_RR( "usad8 r0, r",0, VAL1,", r",1, VAL2,"")
TEST_RR( "usad8 r14, r",12,VAL2,", r",10,VAL1,"")
TEST_UNSUPPORTED(".short 0xfb00,0xf010") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xfb0f,0xff1f") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xfb70,0xf010") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xfb7f,0xff1f") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xfb70,0x0010") /* Unallocated space */
TEST_UNSUPPORTED(".short 0xfb7f,0xff1f") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xfb00f010) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xfb0fff1f) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xfb70f010) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xfb7fff1f) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xfb700010) "") /* Unallocated space */
TEST_UNSUPPORTED(__inst_thumb32(0xfb7fff1f) "") /* Unallocated space */
TEST_GROUP("Long multiply, long multiply accumulate, and divide")
TEST_RR( "smull r0, r1, r",2, VAL1,", r",3, VAL2,"")
TEST_RR( "smull r7, r8, r",9, VAL2,", r",10, VAL1,"")
TEST_UNSUPPORTED(".short 0xfb89,0xf80a @ smull pc, r8, r9, r10");
TEST_UNSUPPORTED(".short 0xfb89,0xd80a @ smull sp, r8, r9, r10");
TEST_UNSUPPORTED(".short 0xfb89,0x7f0a @ smull r7, pc, r9, r10");
TEST_UNSUPPORTED(".short 0xfb89,0x7d0a @ smull r7, sp, r9, r10");
TEST_UNSUPPORTED(".short 0xfb8f,0x780a @ smull r7, r8, pc, r10");
TEST_UNSUPPORTED(".short 0xfb8d,0x780a @ smull r7, r8, sp, r10");
TEST_UNSUPPORTED(".short 0xfb89,0x780f @ smull r7, r8, r9, pc");
TEST_UNSUPPORTED(".short 0xfb89,0x780d @ smull r7, r8, r9, sp");
TEST_UNSUPPORTED(__inst_thumb32(0xfb89f80a) " @ smull pc, r8, r9, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb89d80a) " @ smull sp, r8, r9, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb897f0a) " @ smull r7, pc, r9, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb897d0a) " @ smull r7, sp, r9, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb8f780a) " @ smull r7, r8, pc, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb8d780a) " @ smull r7, r8, sp, r10");
TEST_UNSUPPORTED(__inst_thumb32(0xfb89780f) " @ smull r7, r8, r9, pc");
TEST_UNSUPPORTED(__inst_thumb32(0xfb89780d) " @ smull r7, r8, r9, sp");
TEST_RR( "umull r0, r1, r",2, VAL1,", r",3, VAL2,"")
TEST_RR( "umull r7, r8, r",9, VAL2,", r",10, VAL1,"")
@ -1175,8 +1176,8 @@ CONDITION_INSTRUCTIONS(22,
TEST_GROUP("Coprocessor instructions")
TEST_UNSUPPORTED(".short 0xfc00,0x0000")
TEST_UNSUPPORTED(".short 0xffff,0xffff")
TEST_UNSUPPORTED(__inst_thumb32(0xfc000000) "")
TEST_UNSUPPORTED(__inst_thumb32(0xffffffff) "")
TEST_GROUP("Testing instructions in IT blocks")

13
arch/arm/kernel/kprobes-test.c
View File

@ -113,7 +113,7 @@
* @ start of inline data...
* .ascii "mov r0, r7" @ text title for test case
* .byte 0
* .align 2
* .align 2, 0
*
* @ TEST_ARG_REG
* .byte ARG_TYPE_REG
@ -1333,7 +1333,8 @@ static void test_case_failed(const char *message)
static unsigned long next_instruction(unsigned long pc)
{
#ifdef CONFIG_THUMB2_KERNEL
if ((pc & 1) && !is_wide_instruction(*(u16 *)(pc - 1)))
if ((pc & 1) &&
!is_wide_instruction(__mem_to_opcode_thumb16(*(u16 *)(pc - 1))))
return pc + 2;
else
#endif
@ -1378,13 +1379,13 @@ static uintptr_t __used kprobes_test_case_start(const char *title, void *stack)
if (test_case_is_thumb) {
u16 *p = (u16 *)(test_code & ~1);
current_instruction = p[0];
current_instruction = __mem_to_opcode_thumb16(p[0]);
if (is_wide_instruction(current_instruction)) {
current_instruction <<= 16;
current_instruction |= p[1];
u16 instr2 = __mem_to_opcode_thumb16(p[1]);
current_instruction = __opcode_thumb32_compose(current_instruction, instr2);
}
} else {
current_instruction = *(u32 *)test_code;
current_instruction = __mem_to_opcode_arm(*(u32 *)test_code);
}
if (current_title[0] == '.')

2
arch/arm/kernel/kprobes-test.h
View File

@ -115,7 +115,7 @@ struct test_arg_end {
/* multiple strings to be concatenated. */ \
".ascii "#title" \n\t" \
".byte 0 \n\t" \
".align 2 \n\t"
".align 2, 0 \n\t"
#define TEST_ARG_REG(reg, val) \
".byte "__stringify(ARG_TYPE_REG)" \n\t" \

20
arch/arm/kernel/kprobes-thumb.c
View File

@ -149,9 +149,9 @@ t32_decode_ldmstm(probes_opcode_t insn, struct arch_probes_insn *asi,
enum probes_insn ret = kprobe_decode_ldmstm(insn, asi, d);
/* Fixup modified instruction to have halfwords in correct order...*/
insn = asi->insn[0];
((u16 *)asi->insn)[0] = insn >> 16;
((u16 *)asi->insn)[1] = insn & 0xffff;
insn = __mem_to_opcode_arm(asi->insn[0]);
((u16 *)asi->insn)[0] = __opcode_to_mem_thumb16(insn >> 16);
((u16 *)asi->insn)[1] = __opcode_to_mem_thumb16(insn & 0xffff);
return ret;
}
@ -516,7 +516,7 @@ t16_decode_hiregs(probes_opcode_t insn, struct arch_probes_insn *asi,
{
insn &= ~0x00ff;
insn |= 0x001; /* Set Rdn = R1 and Rm = R0 */
((u16 *)asi->insn)[0] = insn;
((u16 *)asi->insn)[0] = __opcode_to_mem_thumb16(insn);
asi->insn_handler = t16_emulate_hiregs;
return INSN_GOOD;
}
@ -547,8 +547,10 @@ t16_decode_push(probes_opcode_t insn, struct arch_probes_insn *asi,
* and call it with R9=SP and LR in the register list represented
* by R8.
*/
((u16 *)asi->insn)[0] = 0xe929; /* 1st half STMDB R9!,{} */
((u16 *)asi->insn)[1] = insn & 0x1ff; /* 2nd half (register list) */
/* 1st half STMDB R9!,{} */
((u16 *)asi->insn)[0] = __opcode_to_mem_thumb16(0xe929);
/* 2nd half (register list) */
((u16 *)asi->insn)[1] = __opcode_to_mem_thumb16(insn & 0x1ff);
asi->insn_handler = t16_emulate_push;
return INSN_GOOD;
}
@ -600,8 +602,10 @@ t16_decode_pop(probes_opcode_t insn, struct arch_probes_insn *asi,
* and call it with R9=SP and PC in the register list represented
* by R8.
*/
((u16 *)asi->insn)[0] = 0xe8b9; /* 1st half LDMIA R9!,{} */
((u16 *)asi->insn)[1] = insn & 0x1ff; /* 2nd half (register list) */
/* 1st half LDMIA R9!,{} */
((u16 *)asi->insn)[0] = __opcode_to_mem_thumb16(0xe8b9);
/* 2nd half (register list) */
((u16 *)asi->insn)[1] = __opcode_to_mem_thumb16(insn & 0x1ff);
asi->insn_handler = insn & 0x100 ? t16_emulate_pop_pc
: t16_emulate_pop_nopc;
return INSN_GOOD;

9
arch/arm/kernel/kprobes.c
View File

@ -26,6 +26,7 @@
#include <linux/stop_machine.h>
#include <linux/stringify.h>
#include <asm/traps.h>
#include <asm/opcodes.h>
#include <asm/cacheflush.h>
#include <linux/percpu.h>
#include <linux/bug.h>
@ -67,10 +68,10 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
#ifdef CONFIG_THUMB2_KERNEL
thumb = true;
addr &= ~1; /* Bit 0 would normally be set to indicate Thumb code */
insn = ((u16 *)addr)[0];
insn = __mem_to_opcode_thumb16(((u16 *)addr)[0]);
if (is_wide_instruction(insn)) {
insn <<= 16;
insn |= ((u16 *)addr)[1];
u16 inst2 = __mem_to_opcode_thumb16(((u16 *)addr)[1]);
insn = __opcode_thumb32_compose(insn, inst2);
decode_insn = thumb32_probes_decode_insn;
actions = kprobes_t32_actions;
} else {
@ -81,7 +82,7 @@ int __kprobes arch_prepare_kprobe(struct kprobe *p)
thumb = false;
if (addr & 0x3)
return -EINVAL;
insn = *p->addr;
insn = __mem_to_opcode_arm(*p->addr);
decode_insn = arm_probes_decode_insn;
actions = kprobes_arm_actions;
#endif

15
arch/arm/kernel/probes.c
View File

@ -202,13 +202,14 @@ prepare_emulated_insn(probes_opcode_t insn, struct arch_probes_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)
@ -228,12 +229,12 @@ set_emulated_insn(probes_opcode_t insn, struct arch_probes_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);
}
/*