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Re: [PATCH, BINUTILS, AARCH64] Add SSBB and PSSBB
- From: Sudakshina Das <Sudi dot Das at arm dot com>
- To: "binutils at sourceware dot org" <binutils at sourceware dot org>
- Cc: nd <nd at arm dot com>, Richard Earnshaw <Richard dot Earnshaw at arm dot com>, Marcus Shawcroft <Marcus dot Shawcroft at arm dot com>
- Date: Thu, 12 Jul 2018 10:00:51 +0000
- Subject: Re: [PATCH, BINUTILS, AARCH64] Add SSBB and PSSBB
- References: <HE1PR0801MB17223C4CA1A927A11A8D3986985A0@HE1PR0801MB1722.eurprd08.prod.outlook.com>
Hi
Also if it is ok, can I also ask for a backport to 2.31?
It applies cleanly and does not show any regressions.
Thanks
Sudi
From: Sudakshina Das
Sent: Wednesday, July 11, 2018 3:39 PM
To: binutils@sourceware.org
Cc: nd; Richard Earnshaw; Marcus Shawcroft
Subject: [PATCH, BINUTILS, AARCH64] Add SSBB and PSSBB
Hi
This patch adds the following speculation barrier instructions
to the AArch64 assembler and disassembler as given in:
https://static.docs.arm.com/ddi0596/a/DDI_0596_ARM_a64_instruction_set_architecture.pdf
SSBB
PSSBB
These are added retrospectively to all older architectures,
and thus have been added as CORE_INSN.
Testing done: Builds and reg tests all pass on aarch64-none-linux-gnu.
Updated test to check.
Is this ok for trunk? I do not have commit rights. If this seems ok
can someone commit it on my behalf.
Thanks
Sudi
*** opcodes/ChangeLog ***
2018-xx-xx Sudakshina Das <sudi.das@arm.com>
* aarch64-tbl.h (aarch64_opcode_table): Add entry for
ssbb and pssbb and update dsb flags to F_HAS_ALIAS.
* aarch64-asm-2.c: Regenerate.
* aarch64-dis-2.c: Regenerate.
* aarch64-opc-2.c: Regenerate.
*** gas/ChangeLog ***
2018-xx-xx Sudakshina Das <sudi.das@arm.com>
* testsuite/gas/aarch64/system.s: Add test for ssbb
and pssbb.
* testsuite/gas/aarch64/system.d: Update accordingly
and remove explicit addresses.