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Re: [PATCH] x86/asm: add commas to BUILD_BUG_ON
- To: Jan Beulich <jbeulich@xxxxxxxx>, "xen-devel@xxxxxxxxxxxxxxxxxxxx" <xen-devel@xxxxxxxxxxxxxxxxxxxx>
- From: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
- Date: Wed, 6 Mar 2024 10:26:49 +0000
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- Cc: Wei Liu <wl@xxxxxxx>, Roger Pau Monné <roger.pau@xxxxxxxxxx>
- Delivery-date: Wed, 06 Mar 2024 10:26:54 +0000
- List-id: Xen developer discussion <xen-devel.lists.xenproject.org>
On 06/03/2024 7:34 am, Jan Beulich wrote:
> In light of recent observations with how macros are handled by gas,
> let's play by what we informally set for ourselves as a guideline: Use
> commas to separate parameters/arguments.
>
> Signed-off-by: Jan Beulich <jbeulich@xxxxxxxx>
Acked-by: Andrew Cooper <andrew.cooper3@xxxxxxxxxx>
However, there are some other examples wanting the same treatment.
alternative-asm.h:14:.macro altinstruction_entry orig repl feature
orig_len repl_len pad_len
asm-defns.h:32:.macro INDIRECT_BRANCH insn:req arg:req
asm_defns.h:284:.macro RESTORE_ALL adj=0 compat=0
spec_ctrl_asm.h:107:.macro DO_OVERWRITE_RSB tmp=rax xu
Preferably, fix all of these in one go.
As for observations about the other architectures, PPC uses commas
everywhere. RISC-V has no .macro's. ARM looks to be a 50/50 mix.
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