Re: [PATCH v4 09/18] x86/static_call: Add out-of-line static call implementation

[Peter Zijlstra]

On Fri, May 01, 2020 at 10:28:58PM +0200, Peter Zijlstra wrote:

> +#define ARCH_DEFINE_STATIC_CALL_TRAMP(name, func)			\
> +	asm(".pushsection .text, \"ax\"				\n"	\
> +	    ".align 4						\n"	\
> +	    ".globl " STATIC_CALL_TRAMP_STR(name) "		\n"	\
> +	    STATIC_CALL_TRAMP_STR(name) ":			\n"	\
> +	    "	jmp.d32 " #func "				\n"	\

I remembered Nick asked this to be .byte 0xe9; .long #func - (.+4); last
time, now done.

> +	    ".type " STATIC_CALL_TRAMP_STR(name) ", @function	\n"	\
> +	    ".size " STATIC_CALL_TRAMP_STR(name) ", . - " STATIC_CALL_TRAMP_STR(name) " \n" \
> +	    ".popsection					\n")