Re: [PATCH v2 3/10] arm: vdso: inline assembler operations to compiler.h

From: Mark Salyzyn
Date: Fri Oct 13 2017 - 14:13:09 EST


On 10/12/2017 03:59 PM, Mark Salyzyn wrote:
Move compiler-specific code to a local compiler.h file. CONFIG_AEABI
dependency check. System call fallback functions standardized into
a DEFINE_FALLBACK macro. Accept that __arch_counter_get_cntvct()
is the API for aarch64. Deal with unresolved references emitted by
GCC. Optimize handling of fallback calls. Most notably add unlikely
nullptr checking to __vdso_gettimeofday, if tv null no need to
proceed to fallback, as vdso is capable of filling in the tv values.
nit: last sentence should have read 'filling in the tz values.'