[AArch64][Patch 1/5] Support the ARMv8.2 Statistical Profiling Extension.
The Statistical Profile extension included in the ARMv8.2 architecture adds a number of system registers and a new instruction. This patch set adds support for the extension to binutils, enabled when -march=armv8.2-a+profile is given. The patches in this series: - Add the new command line option and feature flags. - Add the new system registers. - Adjust the maximum number of aliases permitted for an instruction. - Add support for HINT aliases which take operands. - Add the new instruction, an alias of the HINT instruction. This patch adds the option "profile" to the permitted architecture extensions, disabling it by default. gas/ 2015-12-11 Matthew Wahab <matthew.wahab@arm.com> * config/tc-aarch64.c (aarch64_features): Add "profile". * doc/c-aarch64.texi (AArch64 Extensions): Add "profile". include/opcode/ 2015-12-11 Matthew Wahab <matthew.wahab@arm.com> * aarch64.h (AARCH64_FEATURE_PROFILE): New. Change-Id: If9bb4a9b69a264180f96f8ffaf10b15ced273699
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@ -1,3 +1,8 @@
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2015-12-11 Matthew Wahab <matthew.wahab@arm.com>
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* config/tc-aarch64.c (aarch64_features): Add "profile".
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* doc/c-aarch64.texi (AArch64 Extensions): Add "profile".
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2015-12-10 Matthew Wahab <matthew.wahab@arm.com>
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* config/tc-aarch64.c (parse_sys_ins_reg): Add check of
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@ -7744,6 +7744,7 @@ static const struct aarch64_option_cpu_value_table aarch64_features[] = {
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| AARCH64_FEATURE_RDMA, 0)},
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{"fp16", AARCH64_FEATURE (AARCH64_FEATURE_F16
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| AARCH64_FEATURE_FP, 0)},
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{"profile", AARCH64_FEATURE (AARCH64_FEATURE_PROFILE, 0)},
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{NULL, AARCH64_ARCH_NONE}
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};
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@ -145,6 +145,8 @@ automatically cause those extensions to be disabled.
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@item @code{fp16} @tab ARMv8.2-A @tab ARMv8.2-A or later
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@tab Enable ARMv8.2 16-bit floating-point support. This implies
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@code{fp}.
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@item @code{profile} @tab ARMv8.2-A @tab No
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@tab Enable statistical profiling extensions.
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@end multitable
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@node AArch64 Syntax
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@ -1,3 +1,7 @@
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2015-12-11 Matthew Wahab <matthew.wahab@arm.com>
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* aarch64.h (AARCH64_FEATURE_PROFILE): New.
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2015-12-10 Matthew Wahab <matthew.wahab@arm.com>
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* aarch64.h (aarch64_sys_ins_reg_supported_p): Declare.
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@ -50,6 +50,7 @@ typedef uint32_t aarch64_insn;
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#define AARCH64_FEATURE_V8_1 0x01000000 /* v8.1 features. */
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#define AARCH64_FEATURE_F16 0x02000000 /* v8.2 FP16 instructions. */
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#define AARCH64_FEATURE_RAS 0x04000000 /* RAS Extensions. */
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#define AARCH64_FEATURE_PROFILE 0x08000000 /* Statistical Profiling. */
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/* Architectures are the sum of the base and extensions. */
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#define AARCH64_ARCH_V8 AARCH64_FEATURE (AARCH64_FEATURE_V8, \
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