Re: [PATCH v8 05/14] x86: conditionally place regular ASM functions into separate sections

Peter Zijlstra
2021-12-03T09:44:39Z

On Thu, Dec 02, 2021 at 11:32:05PM +0100, Alexander Lobakin wrote:
> Use the newly introduces macros to create unique separate sections
> for (almost) every "regular" ASM function (i.e. for those which
> aren't explicitly put into a specific one).
> There should be no leftovers as input .text will be size-asserted
> in the LD script generated for FG-KASLR.

*groan*...

Please, can't we do something like:

#define SYM_PUSH_SECTION(name) \
.if section == .text \
.push_section .text.##name \
.else \
.push_section .text \
.endif

#define SYM_POP_SECTION() \
.pop_section

and wrap that inside the existing SYM_FUNC_START*() SYM_FUNC_END()
macros.