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

Mark Salyzyn salyzyn at android.com
Fri Oct 13 11:13:00 PDT 2017


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.'



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