From ced40572e478927f43a849d5c39f794868da8d38 Mon Sep 17 00:00:00 2001 From: Thomas Preud'homme Date: Sat, 24 Jun 2017 10:37:47 +0100 Subject: [ARM] Add support for ARMv8-R in assembler and readelf === Context === This patch is part of a patch series to add support for ARMv8-R architecture. Its purpose is to add support for ARMv8-R in GAS: instructions, build attributes and readelf. === Patch description === Although some differences exist for system registers, from GAS point of view ARMv8-R supports the same instructions as ARMv8-A Aarch32 state and a subset of its extensions. This patch therefore introduce a new feature bit to distinguish the availability of the pan, ras and rdma extensions between ARMv8-A and ARMv8-R and allow crypto, fp and simd extensions to be used by ARMv8-R. Most of the changes are then in the testsuite to (i) rename source files and error output to be shared between ARMv8-A and ARMv8-R, (ii) rename files with expected output for ARMv8-A build attributes and (iii) add new files with expected output for ARMv8-R build attributes. 2017-06-24 Thomas Preud'homme binutils/ * readelf.c (arm_attr_tag_CPU_arch): Fill value for ARMv8-R. gas/ * NEWS: Mention support for ARMv8-R architecture. * config/tc-arm.c (arm_archs): Add entry for ARMv8-R. (arm_extensions): Restrict pan, ras and rdma extension to ARMv8-A and make crypto, fp and simd extensions available to ARMv8-R. (cpu_arch_ver): Add entry for ARMv8-R. (aeabi_set_public_attributes): Update gas_assert for Tag_DIV_use logic. * testsuite/gas/arm/armv8-a+fp.s: Rename into ... * testsuite/gas/arm/armv8-ar+fp.s: This. Remove .arch directive. * testsuite/gas/arm/armv8-a+fp.d: Specify source to assemble and architecture to assemble for. * testsuite/gas/arm/armv8-r+fp.d: New. * testsuite/gas/arm/armv8-a+simd.s: Rename into ... * testsuite/gas/arm/armv8-ar+simd.s: This. Remove .arch directive. * testsuite/gas/arm/armv8-a+simd.d: Specify source to assemble and architecture to assemble for. * testsuite/gas/arm/armv8-r+simd.d: New. * testsuite/gas/arm/armv8-a-bad.s: Rename into ... * testsuite/gas/arm/armv8-ar-bad.s: This. Remove .arch directive. * testsuite/gas/arm/armv8-a-bad.l: Rename into ... * testsuite/gas/arm/armv8-ar-bad.l: This. Decrement line number by 1. * testsuite/gas/arm/armv8-a-bad.d: Specify source to assemble, architecture to assemble for and adjust error output file. * testsuite/gas/arm/armv8-r-bad.d: New. * testsuite/gas/arm/armv8-a-barrier.s: Rename into ... * testsuite/gas/arm/armv8-ar-barrier.s: This. * testsuite/gas/arm/armv8-a-barrier-arm.d: Adjust source. * testsuite/gas/arm/armv8-a-barrier-thumb.d: Likewise. * testsuite/gas/arm/armv8-r-barrier-arm.d: New. * testsuite/gas/arm/armv8-r-barrier-thumb.d: New. * testsuite/gas/arm/armv8-a-it-bad.s: Rename into ... * testsuite/gas/arm/armv8-ar-it-bad.s: This. Remove .arch directive. * testsuite/gas/arm/armv8-a-it-bad.l: Rename into ... * testsuite/gas/arm/armv8-ar-it-bad.l: This. Decrement line number by 1. * testsuite/gas/arm/armv8-a-it-bad.d: Specify source to assemble, architecture to assemble for and adjust error output file. * testsuite/gas/arm/armv8-r-it-bad.d: New. * testsuite/gas/arm/armv8-a.s: Rename into ... * testsuite/gas/arm/armv8-ar.s: This. Remove .arch directive. * testsuite/gas/arm/armv8-a.d: Specify source to assemble and architecture to assemble for. * testsuite/gas/arm/armv8-r.d: New. * testsuite/gas/arm/attr-march-armv8-r+crypto.d: New. * testsuite/gas/arm/attr-march-armv8-r+fp.d: New. * testsuite/gas/arm/attr-march-armv8-r+simd.d: New. * testsuite/gas/arm/attr-march-armv8-r.d: New. * testsuite/gas/arm/crc32.s: Rename into ... * testsuite/gas/arm/crc32-armv8-ar.s: This. * testsuite/gas/arm/crc32.d: Rename into ... * testsuite/gas/arm/crc32-armv8-a.d: This. Specify source to assemble. * testsuite/gas/arm/crc32-armv8-r.d: New. * testsuite/gas/arm/crc32-bad.s: Rename into ... * testsuite/gas/arm/crc32-armv8-ar-bad.s: This. * testsuite/gas/arm/crc32-bad.d: Rename into ... * testsuite/gas/arm/crc32-armv8-a-bad.d: This. Specify source to assemble. * testsuite/gas/arm/crc32-armv8-r-bad.d: New. * testsuite/gas/arm/mask_1.s: Rename into ... * testsuite/gas/arm/mask_1-armv8-ar.s: This. * testsuite/gas/arm/mask_1.d: Rename into ... * testsuite/gas/arm/mask_1-armv8-a.d: This. Specify source to assemble. * testsuite/gas/arm/mask_1-armv8-r.d: new. include/ * elf/arm.h (TAG_CPU_ARCH_V8R): New macro. * opcode/arm.h (ARM_EXT2_V8A): New macro. (ARM_AEXT2_V8A): Rename into ... (ARM_AEXT2_V8AR): This. (ARM_AEXT2_V8A): New macro. (ARM_AEXT_V8R): New macro. (ARM_AEXT2_V8R): New macro. (ARM_ARCH_V8R): New macro. --- include/opcode/arm.h | 7 ++++++- 1 file changed, 6 insertions(+), 1 deletion(-) (limited to 'include/opcode') diff --git a/include/opcode/arm.h b/include/opcode/arm.h index 62683a3..e2049a0 100644 --- a/include/opcode/arm.h +++ b/include/opcode/arm.h @@ -65,6 +65,7 @@ #define ARM_EXT2_V8M_MAIN 0x00000040 /* ARMv8-M Mainline. */ #define ARM_EXT2_RAS 0x00000080 /* RAS extension. */ #define ARM_EXT2_V8_3A 0x00000100 /* ARM V8.3A. */ +#define ARM_EXT2_V8A 0x00000200 /* ARMv8-A. */ /* Co-processor space extensions. */ #define ARM_CEXT_XSCALE 0x00000001 /* Allow MIA etc. */ @@ -149,7 +150,8 @@ #define ARM_AEXT_V8A \ (ARM_AEXT_V7A | ARM_EXT_MP | ARM_EXT_SEC | ARM_EXT_DIV | ARM_EXT_ADIV \ | ARM_EXT_VIRT | ARM_EXT_V8) -#define ARM_AEXT2_V8A (ARM_EXT2_V6T2_V8M | ARM_EXT2_ATOMICS) +#define ARM_AEXT2_V8AR (ARM_EXT2_V6T2_V8M | ARM_EXT2_ATOMICS) +#define ARM_AEXT2_V8A (ARM_AEXT2_V8AR | ARM_EXT2_V8A) #define ARM_AEXT2_V8_1A (ARM_AEXT2_V8A | ARM_EXT2_PAN) #define ARM_AEXT2_V8_2A (ARM_AEXT2_V8_1A | ARM_EXT2_V8_2A | ARM_EXT2_RAS) #define ARM_AEXT2_V8_3A (ARM_AEXT2_V8_2A | ARM_EXT2_V8_3A) @@ -159,6 +161,8 @@ #define ARM_AEXT2_V8M (ARM_EXT2_V8M | ARM_EXT2_ATOMICS | ARM_EXT2_V6T2_V8M) #define ARM_AEXT2_V8M_MAIN (ARM_AEXT2_V8M | ARM_EXT2_V8M_MAIN) #define ARM_AEXT2_V8M_MAIN_DSP ARM_AEXT2_V8M_MAIN +#define ARM_AEXT_V8R ARM_AEXT_V8A +#define ARM_AEXT2_V8R ARM_AEXT2_V8AR /* Processors with specific extensions in the co-processor space. */ #define ARM_ARCH_XSCALE ARM_FEATURE_LOW (ARM_AEXT_V5TE, ARM_CEXT_XSCALE) @@ -282,6 +286,7 @@ ARM_AEXT2_V8M_MAIN) #define ARM_ARCH_V8M_MAIN_DSP ARM_FEATURE_CORE (ARM_AEXT_V8M_MAIN_DSP, \ ARM_AEXT2_V8M_MAIN_DSP) +#define ARM_ARCH_V8R ARM_FEATURE_CORE (ARM_AEXT_V8R, ARM_AEXT2_V8R) /* Some useful combinations: */ #define ARM_ARCH_NONE ARM_FEATURE_LOW (0, 0) -- cgit v1.1