serval-dna/nacl/nacl-20110221/cpucycles/amd64cpuinfo.c
Daniel O'Connor bf9710fd5a Unpacked nacl-20110221 after processing by nacl-prepare-sources.
This only affects build_android, if nacl-gcc-prep is run then build/`uname -s` will be created.
2012-02-27 12:40:14 +10:30

17 lines
324 B
C

#include <stdio.h>
#include <sys/types.h>
#include "osfreq.c"
long long cpucycles_amd64cpuinfo(void)
{
unsigned long long result;
asm volatile(".byte 15;.byte 49;shlq $32,%%rdx;orq %%rdx,%%rax"
: "=a" (result) :: "%rdx");
return result;
}
long long cpucycles_amd64cpuinfo_persecond(void)
{
return osfreq();
}