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[binutils-gdb] [PATCH 1/57][Arm][GAS]: Add support for +mve and +mve.fp
- From: Andre Simoes Dias Vieira <avieira at sourceware dot org>
- To: bfd-cvs at sourceware dot org
- Date: 16 May 2019 15:38:16 -0000
- Subject: [binutils-gdb] [PATCH 1/57][Arm][GAS]: Add support for +mve and +mve.fp
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a7ad558c377fd5f5cc7bc77837c532f907f2c53b
commit a7ad558c377fd5f5cc7bc77837c532f907f2c53b
Author: Andre Vieira <andre.simoesdiasvieira@arm.com>
Date: Wed May 15 16:44:57 2019 +0100
[PATCH 1/57][Arm][GAS]: Add support for +mve and +mve.fp
bfd/ChangeLog:
2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
* elf32-arm.c (elf32_arm_merge_eabi_attributes): Add case for Tag_MVE_arch.
binutils/ChangeLog:
2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
* readelf.c (arm_attr_tag_MVE_arch): New array for Tag_MVE_arch values.
(arm_attr_public_tag arm_attr_public_tags): Add case for Tag_MVE_arch.
elfcpp/ChangeLog:
2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
* arm.h (Tag_MVE_arch): Define new enum value.
gas/ChangeLog:
2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
* config/tc-arm.c (mve_ext, mve_fp_ext): New features.
(armv8_1m_main_ext_table): Add new extensions.
(aeabi_set_public_attributes): Translate new features to new build attributes.
(arm_convert_symbolic_attribute): Add Tag_MVE_arch.
* doc/c-arm.texi: Document new extensions and new build attribute.
include/ChangeLog:
2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
* elf/arm.h (Tag_MVE_arch): Define new enum value.
* opcode/arm.h (FPU_MVE, FPU_MVE_FP): New MACROs for new features.
Diff:
---
bfd/ChangeLog | 4 ++++
bfd/elf32-arm.c | 1 +
binutils/ChangeLog | 5 +++++
binutils/readelf.c | 4 ++++
elfcpp/ChangeLog | 4 ++++
elfcpp/arm.h | 1 +
gas/ChangeLog | 8 ++++++++
gas/config/tc-arm.c | 16 ++++++++++++++++
gas/doc/c-arm.texi | 7 ++++++-
include/ChangeLog | 5 +++++
include/elf/arm.h | 1 +
include/opcode/arm.h | 2 ++
12 files changed, 57 insertions(+), 1 deletion(-)
diff --git a/bfd/ChangeLog b/bfd/ChangeLog
index e3729bb..9b33ac5 100644
--- a/bfd/ChangeLog
+++ b/bfd/ChangeLog
@@ -1,3 +1,7 @@
+2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
+
+ * elf32-arm.c (elf32_arm_merge_eabi_attributes): Add case for Tag_MVE_arch.
+
2019-05-16 Alan Modra <amodra@gmail.com>
* elf32-arm.c (elf32_arm_write_section): Revert last change.
diff --git a/bfd/elf32-arm.c b/bfd/elf32-arm.c
index 337961d..418458c 100644
--- a/bfd/elf32-arm.c
+++ b/bfd/elf32-arm.c
@@ -14713,6 +14713,7 @@ elf32_arm_merge_eabi_attributes (bfd *ibfd, struct bfd_link_info *info)
case Tag_CPU_unaligned_access:
case Tag_T2EE_use:
case Tag_MPextension_use:
+ case Tag_MVE_arch:
/* Use the largest value specified. */
if (in_attr[i].i > out_attr[i].i)
out_attr[i].i = in_attr[i].i;
diff --git a/binutils/ChangeLog b/binutils/ChangeLog
index 2783e58..dd5066b 100644
--- a/binutils/ChangeLog
+++ b/binutils/ChangeLog
@@ -1,3 +1,8 @@
+2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
+
+ * readelf.c (arm_attr_tag_MVE_arch): New array for Tag_MVE_arch values.
+ (arm_attr_public_tag arm_attr_public_tags): Add case for Tag_MVE_arch.
+
2019-05-14 Jamey Hicks <jamey.hicks@gmail.com>
PR 19921
diff --git a/binutils/readelf.c b/binutils/readelf.c
index 1ea4cef..c31a5c1 100644
--- a/binutils/readelf.c
+++ b/binutils/readelf.c
@@ -14434,6 +14434,9 @@ static const char * arm_attr_tag_Virtualization_use[] =
static const char * arm_attr_tag_MPextension_use_legacy[] =
{"Not Allowed", "Allowed"};
+static const char * arm_attr_tag_MVE_arch[] =
+ {"No MVE", "MVE Integer only", "MVE Integer and FP"};
+
#define LOOKUP(id, name) \
{id, #name, 0x80 | ARRAY_SIZE(arm_attr_tag_##name), arm_attr_tag_##name}
static arm_attr_public_tag arm_attr_public_tags[] =
@@ -14473,6 +14476,7 @@ static arm_attr_public_tag arm_attr_public_tags[] =
LOOKUP(42, MPextension_use),
LOOKUP(44, DIV_use),
LOOKUP(46, DSP_extension),
+ LOOKUP(48, MVE_arch),
{64, "nodefaults", 0, NULL},
{65, "also_compatible_with", 0, NULL},
LOOKUP(66, T2EE_use),
diff --git a/elfcpp/ChangeLog b/elfcpp/ChangeLog
index aa8aa74..fbb045b 100644
--- a/elfcpp/ChangeLog
+++ b/elfcpp/ChangeLog
@@ -1,3 +1,7 @@
+2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
+
+ * arm.h (Tag_MVE_arch): Define new enum value.
+
2019-04-15 Sudakshina Das <sudi.das@arm.com>
* arm.h (R_ARM_THM_BF12): New relocation code.
diff --git a/elfcpp/arm.h b/elfcpp/arm.h
index 1904865..aa57344 100644
--- a/elfcpp/arm.h
+++ b/elfcpp/arm.h
@@ -305,6 +305,7 @@ enum
Tag_MPextension_use = 42,
Tag_undefined43 = 43,
Tag_DIV_use = 44,
+ Tag_MVE_arch = 48,
Tag_nodefaults = 64,
Tag_also_compatible_with = 65,
Tag_T2EE_use = 66,
diff --git a/gas/ChangeLog b/gas/ChangeLog
index 8744014..853d46f 100644
--- a/gas/ChangeLog
+++ b/gas/ChangeLog
@@ -1,3 +1,11 @@
+2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
+
+ * config/tc-arm.c (mve_ext, mve_fp_ext): New features.
+ (armv8_1m_main_ext_table): Add new extensions.
+ (aeabi_set_public_attributes): Translate new features to new build attributes.
+ (arm_convert_symbolic_attribute): Add Tag_MVE_arch.
+ * doc/c-arm.texi: Document new extensions and new build attribute.
+
2019-05-15 John Darrington <john@darrington.wattle.id.au>
* config/tc-s12z.c (register_prefix): New variable. (md_show_usage,
diff --git a/gas/config/tc-arm.c b/gas/config/tc-arm.c
index 2ec3ea0..d68e3e0 100644
--- a/gas/config/tc-arm.c
+++ b/gas/config/tc-arm.c
@@ -302,6 +302,10 @@ static const arm_feature_set fpu_neon_ext_v1 =
ARM_FEATURE_COPROC (FPU_NEON_EXT_V1);
static const arm_feature_set fpu_vfp_v3_or_neon_ext =
ARM_FEATURE_COPROC (FPU_NEON_EXT_V1 | FPU_VFP_EXT_V3);
+static const arm_feature_set mve_ext =
+ ARM_FEATURE_COPROC (FPU_MVE);
+static const arm_feature_set mve_fp_ext =
+ ARM_FEATURE_COPROC (FPU_MVE_FP);
#ifdef OBJ_ELF
static const arm_feature_set fpu_vfp_fp16 =
ARM_FEATURE_COPROC (FPU_VFP_EXT_FP16);
@@ -27248,6 +27252,12 @@ static const struct arm_ext_table armv8_1m_main_ext_table[] =
ARM_ADD ("fp.dp",
ARM_FEATURE (0, ARM_EXT2_FP16_INST,
FPU_VFP_V5D16 | FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)),
+ ARM_EXT ("mve", ARM_FEATURE_COPROC (FPU_MVE),
+ ARM_FEATURE_COPROC (FPU_MVE | FPU_MVE_FP)),
+ ARM_ADD ("mve.fp",
+ ARM_FEATURE (0, ARM_EXT2_FP16_INST,
+ FPU_MVE | FPU_MVE_FP | FPU_VFP_V5_SP_D16 |
+ FPU_VFP_EXT_FP16 | FPU_VFP_EXT_FMA)),
{ NULL, 0, ARM_ARCH_NONE, ARM_ARCH_NONE }
};
@@ -28425,6 +28435,11 @@ aeabi_set_public_attributes (void)
}
}
+ if (ARM_CPU_HAS_FEATURE (flags, mve_fp_ext))
+ aeabi_set_attribute_int (Tag_MVE_arch, 2);
+ else if (ARM_CPU_HAS_FEATURE (flags, mve_ext))
+ aeabi_set_attribute_int (Tag_MVE_arch, 1);
+
/* Tag_VFP_HP_extension (formerly Tag_NEON_FP16_arch). */
if (ARM_CPU_HAS_FEATURE (flags, fpu_vfp_fp16) && fp16_optional)
aeabi_set_attribute_int (Tag_VFP_HP_extension, 1);
@@ -28766,6 +28781,7 @@ arm_convert_symbolic_attribute (const char *name)
T (Tag_T2EE_use),
T (Tag_Virtualization_use),
T (Tag_DSP_extension),
+ T (Tag_MVE_arch),
/* We deliberately do not include Tag_MPextension_use_legacy. */
#undef T
};
diff --git a/gas/doc/c-arm.texi b/gas/doc/c-arm.texi
index 4c595d8..d35a34d 100644
--- a/gas/doc/c-arm.texi
+++ b/gas/doc/c-arm.texi
@@ -363,8 +363,13 @@ For @code{armv8.1-m.main}:
for Armv8.1-M Mainline with 16 double-word registers.
@code{+fp.dp}: Enables double precision scalar Floating Point Extensions for
Armv8.1-M Mainline, implies @code{+fp}.
+@code{+mve}: Enables integer only M-profile Vector Extension for
+Armv8.1-M Mainline, implies @code{+dsp}.
+@code{+mve.fp}: Enables Floating Point M-profile Vector Extension for
+Armv8.1-M Mainline, implies @code{+mve} and @code{+fp}.
@code{+nofp}: Disables all FPU instructions.
@code{+nodsp}: Disables DSP Extension.
+@code{+nomve}: Disables all M-profile Vector Extensions.
For @code{armv8-a}:
@@ -891,7 +896,7 @@ The @var{tag} is either an attribute number, or one of the following:
@code{Tag_CPU_raw_name}, @code{Tag_CPU_name}, @code{Tag_CPU_arch},
@code{Tag_CPU_arch_profile}, @code{Tag_ARM_ISA_use},
@code{Tag_THUMB_ISA_use}, @code{Tag_FP_arch}, @code{Tag_WMMX_arch},
-@code{Tag_Advanced_SIMD_arch}, @code{Tag_PCS_config},
+@code{Tag_Advanced_SIMD_arch}, @code{Tag_MVE_arch}, @code{Tag_PCS_config},
@code{Tag_ABI_PCS_R9_use}, @code{Tag_ABI_PCS_RW_data},
@code{Tag_ABI_PCS_RO_data}, @code{Tag_ABI_PCS_GOT_use},
@code{Tag_ABI_PCS_wchar_t}, @code{Tag_ABI_FP_rounding},
diff --git a/include/ChangeLog b/include/ChangeLog
index be6240e..96fd266 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,8 @@
+2019-05-16 Andre Vieira <andre.simoesdiasvieira@arm.com>
+
+ * elf/arm.h (Tag_MVE_arch): Define new enum value.
+ * opcode/arm.h (FPU_MVE, FPU_MVE_FP): New MACROs for new features.
+
2019-05-09 Matthew Malcomson <matthew.malcomson@arm.com>
* opcode/aarch64.h (enum aarch64_opnd): New SVE_SHLIMM_UNPRED_22
diff --git a/include/elf/arm.h b/include/elf/arm.h
index 9f22ffe..5cb9970 100644
--- a/include/elf/arm.h
+++ b/include/elf/arm.h
@@ -326,6 +326,7 @@ enum
Tag_undefined_43,
Tag_DIV_use,
Tag_DSP_extension = 46,
+ Tag_MVE_arch = 48,
Tag_nodefaults = 64,
Tag_also_compatible_with,
Tag_T2EE_use,
diff --git a/include/opcode/arm.h b/include/opcode/arm.h
index 73fb2e3..a870905 100644
--- a/include/opcode/arm.h
+++ b/include/opcode/arm.h
@@ -103,6 +103,8 @@
#define FPU_VFP_EXT_ARMV8xD 0x00002000 /* Single-precision FP for ARMv8. */
#define FPU_NEON_EXT_RDMA 0x00001000 /* v8.1 Adv.SIMD extensions. */
#define FPU_NEON_EXT_DOTPROD 0x00000800 /* Dot Product extension. */
+#define FPU_MVE 0x00000400 /* MVE Integer extension. */
+#define FPU_MVE_FP 0x00000200 /* MVE Floating Point extension. */
/* Architectures are the sum of the base and extensions. The ARM ARM (rev E)
defines the following: ARMv3, ARMv3M, ARMv4xM, ARMv4, ARMv4TxM, ARMv4T,