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[AArch64] Add ARMv8.3 pointer authentication key registers

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Add support for system registers introduced in ARMv8.3
for pointer authentication.

opcodes/
2016-11-11  Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* aarch64-opc.c (aarch64_sys_regs): Add apiakeylo_el1, apiakeyhi_el1,
	apibkeylo_el1, apibkeyhi_el1, apdakeylo_el1, apdakeyhi_el1,
	apdbkeylo_el1, apdbkeyhi_el1, apgakeylo_el1 and apgakeyhi_el1.
	(aarch64_sys_reg_supported_p): Add feature test for new registers.

gas/
2016-11-11  Szabolcs Nagy  <szabolcs.nagy@arm.com>

	* testsuite/gas/aarch64/sysreg-3.s: New.
	* testsuite/gas/aarch64/sysreg-3.d: New.
	* testsuite/gas/aarch64/illegal-sysreg-3.l: New.
	* testsuite/gas/aarch64/illegal-sysreg-3.d: New.
This commit is contained in:
Szabolcs Nagy 2016-11-11 10:33:30 +00:00
parent 8787d804e1
commit b0bfa7b5b8
7 changed files with 111 additions and 0 deletions
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7
gas/ChangeLog
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@ -1,3 +1,10 @@
2016-11-11 Szabolcs Nagy <szabolcs.nagy@arm.com>
* testsuite/gas/aarch64/sysreg-3.s: New.
* testsuite/gas/aarch64/sysreg-3.d: New.
* testsuite/gas/aarch64/illegal-sysreg-3.l: New.
* testsuite/gas/aarch64/illegal-sysreg-3.d: New.
2016-11-11 Szabolcs Nagy <szabolcs.nagy@arm.com>
* testsuite/gas/aarch64/system-3.s: New.

3
gas/testsuite/gas/aarch64/illegal-sysreg-3.d Normal file
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@ -0,0 +1,3 @@
#as: -march=armv8-a
#source: sysreg-3.s
#error-output: illegal-sysreg-3.l

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gas/testsuite/gas/aarch64/illegal-sysreg-3.l Normal file
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@ -0,0 +1,21 @@
[^:]*: Assembler messages:
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apiakeylo_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apiakeylo_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apiakeyhi_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apiakeyhi_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apibkeylo_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apibkeylo_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apibkeyhi_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apibkeyhi_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apdakeylo_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apdakeylo_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apdakeyhi_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apdakeyhi_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apdbkeylo_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apdbkeylo_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apdbkeyhi_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apdbkeyhi_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apgakeylo_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apgakeylo_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apgakeyhi_el1'
[^:]*:[0-9]+: Error: selected processor does not support system register name 'apgakeyhi_el1'

28
gas/testsuite/gas/aarch64/sysreg-3.d Normal file
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#objdump: -dr
#as: -march=armv8.3-a
.*: file .*
Disassembly of section \.text:
0000000000000000 <.*>:
0: d5182100 msr apiakeylo_el1, x0
4: d5382100 mrs x0, apiakeylo_el1
8: d5182121 msr apiakeyhi_el1, x1
c: d5382121 mrs x1, apiakeyhi_el1
10: d5182142 msr apibkeylo_el1, x2
14: d5382142 mrs x2, apibkeylo_el1
18: d5182163 msr apibkeyhi_el1, x3
1c: d5382163 mrs x3, apibkeyhi_el1
20: d5182204 msr apdakeylo_el1, x4
24: d5382204 mrs x4, apdakeylo_el1
28: d5182225 msr apdakeyhi_el1, x5
2c: d5382225 mrs x5, apdakeyhi_el1
30: d5182246 msr apdbkeylo_el1, x6
34: d5382246 mrs x6, apdbkeylo_el1
38: d5182267 msr apdbkeyhi_el1, x7
3c: d5382267 mrs x7, apdbkeyhi_el1
40: d5182308 msr apgakeylo_el1, x8
44: d5382308 mrs x8, apgakeylo_el1
48: d5182329 msr apgakeyhi_el1, x9
4c: d5382329 mrs x9, apgakeyhi_el1

21
gas/testsuite/gas/aarch64/sysreg-3.s Normal file
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/* sysreg-3.s Test file for ARMv8.3 system registers. */
.macro test sys_reg xreg
msr \sys_reg, \xreg
mrs \xreg, \sys_reg
.endm
.text
test sys_reg=apiakeylo_el1 xreg=x0
test sys_reg=apiakeyhi_el1 xreg=x1
test sys_reg=apibkeylo_el1 xreg=x2
test sys_reg=apibkeyhi_el1 xreg=x3
test sys_reg=apdakeylo_el1 xreg=x4
test sys_reg=apdakeyhi_el1 xreg=x5
test sys_reg=apdbkeylo_el1 xreg=x6
test sys_reg=apdbkeyhi_el1 xreg=x7
test sys_reg=apgakeylo_el1 xreg=x8
test sys_reg=apgakeyhi_el1 xreg=x9

7
opcodes/ChangeLog
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@ -1,3 +1,10 @@
2016-11-11 Szabolcs Nagy <szabolcs.nagy@arm.com>
* aarch64-opc.c (aarch64_sys_regs): Add apiakeylo_el1, apiakeyhi_el1,
apibkeylo_el1, apibkeyhi_el1, apdakeylo_el1, apdakeyhi_el1,
apdbkeylo_el1, apdbkeyhi_el1, apgakeylo_el1 and apgakeyhi_el1.
(aarch64_sys_reg_supported_p): Add feature test for new registers.
2016-11-11 Szabolcs Nagy <szabolcs.nagy@arm.com>
* aarch64-tbl.h (aarch64_feature_v8_3, ARMV8_3, V8_3_INSN): New.

24
opcodes/aarch64-opc.c
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@ -3650,6 +3650,16 @@ const aarch64_sys_reg aarch64_sys_regs [] =
{ "tcr_el3", CPENC(3,6,C2,C0,2), 0 },
{ "tcr_el12", CPENC (3, 5, C2, C0, 2), F_ARCHEXT },
{ "vtcr_el2", CPENC(3,4,C2,C1,2), 0 },
{ "apiakeylo_el1", CPENC (3, 0, C2, C1, 0), F_ARCHEXT },
{ "apiakeyhi_el1", CPENC (3, 0, C2, C1, 1), F_ARCHEXT },
{ "apibkeylo_el1", CPENC (3, 0, C2, C1, 2), F_ARCHEXT },
{ "apibkeyhi_el1", CPENC (3, 0, C2, C1, 3), F_ARCHEXT },
{ "apdakeylo_el1", CPENC (3, 0, C2, C2, 0), F_ARCHEXT },
{ "apdakeyhi_el1", CPENC (3, 0, C2, C2, 1), F_ARCHEXT },
{ "apdbkeylo_el1", CPENC (3, 0, C2, C2, 2), F_ARCHEXT },
{ "apdbkeyhi_el1", CPENC (3, 0, C2, C2, 3), F_ARCHEXT },
{ "apgakeylo_el1", CPENC (3, 0, C2, C3, 0), F_ARCHEXT },
{ "apgakeyhi_el1", CPENC (3, 0, C2, C3, 1), F_ARCHEXT },
{ "afsr0_el1", CPENC(3,0,C5,C1,0), 0 },
{ "afsr1_el1", CPENC(3,0,C5,C1,1), 0 },
{ "afsr0_el2", CPENC(3,4,C5,C1,0), 0 },
@ -4026,6 +4036,20 @@ aarch64_sys_reg_supported_p (const aarch64_feature_set features,
&& !AARCH64_CPU_HAS_FEATURE (features, AARCH64_FEATURE_PROFILE))
return FALSE;
/* ARMv8.3 Pointer authentication keys. */
if ((reg->value == CPENC (3, 0, C2, C1, 0)
|| reg->value == CPENC (3, 0, C2, C1, 1)
|| reg->value == CPENC (3, 0, C2, C1, 2)
|| reg->value == CPENC (3, 0, C2, C1, 3)
|| reg->value == CPENC (3, 0, C2, C2, 0)
|| reg->value == CPENC (3, 0, C2, C2, 1)
|| reg->value == CPENC (3, 0, C2, C2, 2)
|| reg->value == CPENC (3, 0, C2, C2, 3)
|| reg->value == CPENC (3, 0, C2, C3, 0)
|| reg->value == CPENC (3, 0, C2, C3, 1))
&& !AARCH64_CPU_HAS_FEATURE (features, AARCH64_FEATURE_V8_3))
return FALSE;
return TRUE;
}