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| author | Sudakshina Das <sudi.das@arm.com> | 2018-10-05 10:51:22 +0100 |
|---|---|---|
| committer | Richard Earnshaw <Richard.Earnshaw@arm.com> | 2018-10-05 11:31:21 +0100 |
| commit | dad0c3bfb5e32ff3f2a03830dc189fe207c7ae00 (patch) | |
| tree | fde5239ba63c1a055cc6a99b0a65d1a411d72ebf /gas/doc | |
| parent | 7fadb25d6faf2665305016ceb4aeaeeb86015569 (diff) | |
| download | gdb-dad0c3bfb5e32ff3f2a03830dc189fe207c7ae00.zip gdb-dad0c3bfb5e32ff3f2a03830dc189fe207c7ae00.tar.gz gdb-dad0c3bfb5e32ff3f2a03830dc189fe207c7ae00.tar.bz2 | |
[Arm, 3/3] Add Execution and Data Prediction instructions for AArch32
This patch is part of the patch series to add support for ARMv8.5-A
extensions.
(https://developer.arm.com/products/architecture/cpu-architecture/a-profile/exploration-tools)
This patch adds the Execution and Data Prediction Restriction
instructions (that is, cfprctx, dvprxtc, cpprctx). These are all
aliases to MCR and are disassembled as such.
This instruction is retrospectively made optional for all versions of
the architecture from ARMv8.0 to ARMv8.4 and is mandatory from
ARMv8.5. Hence adding a new +predres for older versions of the
architecture.
*** include/ChangeLog ***
2018-10-05 Sudakshina Das <sudi.das@arm.com>
* opcode/arm.h (ARM_EXT2_PREDRES): New.
(ARM_ARCH_V8_5A): Add ARM_EXT2_PREDRES by default.
*** gas/ChangeLog ***
2018-10-05 Sudakshina Das <sudi.das@arm.com>
* config/tc-arm.c (arm_ext_predres): New.
(insns): Add new cfprctx, dvprctx and cpprctx instructions.
(arm_extensions): Add "predres".
* doc/c-arm.texi: Document the above.
* testsuite/gas/arm/predres-bad.d: New test.
* testsuite/gas/arm/predres-bad.l: New test.
* testsuite/gas/arm/predres.s: New test.
* testsuite/gas/arm/predres1.d: New test.
* testsuite/gas/arm/predres2.d: New test.
Diffstat (limited to 'gas/doc')
| -rw-r--r-- | gas/doc/c-arm.texi | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/gas/doc/c-arm.texi b/gas/doc/c-arm.texi index 18008c4..835777a 100644 --- a/gas/doc/c-arm.texi +++ b/gas/doc/c-arm.texi @@ -189,6 +189,8 @@ The following extensions are currently supported: @code{mp} (Multiprocessing Extensions for v7-A and v7-R architectures), @code{os} (Operating System for v6M architecture), +@code{predres} (Execution and Data Prediction Restriction Instruction for +v8-A architectures, added by default from v8.5-A), @code{sb} (Speculation Barrier Instruction for v8-A architectures, added by default from v8.5-A), @code{sec} (Security Extensions for v6K and v7-A architectures), |