| /* |
| * Copyright (C) 2009 John Kacur <jkacur@redhat.com> |
| */ |
| #include "rt-get_cpu.h" |
| #ifdef __NR_getcpu |
| #elif defined(__GLIBC__) && defined(__GLIBC_MINOR__) \ |
| && __GLIBC__>=2 && __GLIBC_MINOR__>=6 |
| #else |
| int (*get_cpu)(void); |
| int (*get_cpu_vdsop)(unsigned int *, unsigned int *, void *); |
| |
| int get_cpu_setup(void) |
| { |
| void *handle = dlopen("linux-vdso.so.1", RTLD_LAZY); |
| get_cpu_vdsop = NULL; |
| if (handle) { |
| get_cpu_vdsop = dlsym(handle, "getcpu"); |
| dlclose(handle); |
| if (get_cpu_vdsop) { |
| get_cpu = getcpu_vdso; |
| return 0; |
| } |
| } |
| return -1; |
| } |
| |
| #endif |
