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PATCH [6/10] arm: Add -march=armv8.1-m.main+pacbti flag

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gas/
2021-06-11  Andrea Corallo  <andrea.corallo@arm.com>

	* config/tc-arm.c (pacbti_ext): Define.
	(BAD_PACBTI): New macro.
	(armv8_1m_main_ext_table): Add 'pacbti' extension.

include/
2021-06-11  Andrea Corallo  <andrea.corallo@arm.com>

	* opcode/arm.h (ARM_EXT3_PACBTI, ARM_AEXT3_V8_1M_MAIN_PACBTI): New
	macro.
This commit is contained in:
Andrea Corallo 2021-06-04 10:17:17 +02:00
parent 2c6ccfcfdd
commit 5a0c7a819f
2 changed files with 11 additions and 0 deletions
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4
gas/config/tc-arm.c
View File

@ -365,6 +365,8 @@ static const arm_feature_set fpu_neon_ext_v8_1 =
ARM_FEATURE_COPROC (FPU_NEON_EXT_RDMA);
static const arm_feature_set fpu_neon_ext_dotprod =
ARM_FEATURE_COPROC (FPU_NEON_EXT_DOTPROD);
static const arm_feature_set pacbti_ext =
ARM_FEATURE_CORE_HIGH_HIGH (ARM_EXT3_PACBTI);
static int mfloat_abi_opt = -1;
/* Architecture feature bits selected by the last -mcpu/-march or .cpu/.arch
@ -945,6 +947,7 @@ struct asm_opcode
"and source operands makes instruction UNPREDICTABLE")
#define BAD_EL_TYPE _("bad element type for instruction")
#define MVE_BAD_QREG _("MVE vector register Q[0..7] expected")
#define BAD_PACBTI _("selected processor does not support PACBTI extention")
static htab_t arm_ops_hsh;
static htab_t arm_cond_hsh;
@ -31934,6 +31937,7 @@ static const struct arm_ext_table armv8_1m_main_ext_table[] =
ARM_EXT2_FP16_INST | ARM_EXT2_MVE | ARM_EXT2_MVE_FP,
FPU_VFP_V5_SP_D16 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)),
CDE_EXTENSIONS,
ARM_ADD ("pacbti", ARM_FEATURE_CORE_HIGH_HIGH (ARM_AEXT3_V8_1M_MAIN_PACBTI)),
{ NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
};

7
include/opcode/arm.h
View File

@ -90,6 +90,11 @@
#define ARM_EXT2_CDE7 0x40000000 /* Using CDE coproc 7. */
#define ARM_EXT2_V8R 0x80000000 /* Arm V8R. */
#define ARM_EXT3_PACBTI 0x00000001 /* Arm v8-M Mainline Pointer
Authentication and Branch
Target Identification
Extension. */
/* Co-processor space extensions. */
#define ARM_CEXT_XSCALE 0x00000001 /* Allow MIA etc. */
#define ARM_CEXT_MAVERICK 0x00000002 /* Use Cirrus/DSP coprocessor. */
@ -197,6 +202,8 @@
#define ARM_AEXT2_V8_1M_MAIN (ARM_AEXT2_V8M_MAIN | ARM_EXT2_V8_1M_MAIN \
| ARM_EXT2_FP16_INST)
#define ARM_AEXT3_V8_1M_MAIN_PACBTI (ARM_AEXT2_V8M_MAIN | ARM_EXT3_PACBTI)
/* Processors with specific extensions in the co-processor space. */
#define ARM_ARCH_XSCALE ARM_FEATURE_LOW (ARM_AEXT_V5TE, ARM_CEXT_XSCALE)
#define ARM_ARCH_IWMMXT \