[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

1 files changed, 2 insertions, 0 deletions

diff --git a/gas/doc/c-aarch64.texi b/gas/doc/c-aarch64.texi
index 363366a..cba768d 100644
--- a/gas/doc/c-aarch64.texi
+++ b/gas/doc/c-aarch64.texi
@@ -145,6 +145,8 @@ automatically cause those extensions to be disabled.
 @item @code{fp16} @tab ARMv8.2-A @tab ARMv8.2-A or later
  @tab Enable ARMv8.2 16-bit floating-point support.  This implies
  @code{fp}.
+@item @code{profile} @tab ARMv8.2-A @tab No
+ @tab Enable statistical profiling extensions.
 @end multitable
 
 @node AArch64 Syntax