Messages in this thread | ![/](/images/icornerl.gif) | | Date | Mon, 11 Dec 2023 12:46:56 -0300 | Subject | Re: [PATCH] x86/Kconfig: rust: Patchable function Rust compat | From | Martin Rodriguez Reboredo <> |
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On 12/11/23 12:07, Matthew Maurer wrote: > Rust doesn't yet support patchable entry, but likely will soon. Disable > function padding when Rust is used but doesn't support it, and propagate > the flag when it does. > > Signed-off-by: Matthew Maurer <mmaurer@google.com> > --- > [...] > diff --git a/arch/x86/Makefile b/arch/x86/Makefile > index 1a068de12a56..0228af62742e 100644 > --- a/arch/x86/Makefile > +++ b/arch/x86/Makefile > @@ -211,7 +211,9 @@ endif > > ifdef CONFIG_CALL_PADDING > PADDING_CFLAGS := -fpatchable-function-entry=$(CONFIG_FUNCTION_PADDING_BYTES),$(CONFIG_FUNCTION_PADDING_BYTES) > +PADDING_RUSTFLAGS := -Zpatchable-function-entry=$(CONFIG_FUNCTION_PADDING_BYTES),$(CONFIG_FUNCTION_PADDING_BYTES)
It seems that at a glance there's no discussion around this, neither an issue, branch, PR or commit. Do you happen to have a link to it?
> KBUILD_CFLAGS += $(PADDING_CFLAGS) > +KBUILD_RUSTFLAGS += $(PADDING_RUSTFLAGS) > export PADDING_CFLAGS > endif >
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