63 lines
1 KiB
C
63 lines
1 KiB
C
|
#ifndef __PERF_MUSL_COMPAT_H
|
||
|
|
#define __PERF_MUSL_COMPAT_H
|
||
|
|
|
||
|
|
#include <sys/ioctl.h>
|
||
|
|
#include <string.h>
|
||
|
|
#include <unistd.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include <syscall.h>
|
||
|
|
#include <sched.h>
|
||
|
|
|
||
|
|
#undef _IOWR
|
||
|
|
#undef _IOR
|
||
|
|
#undef _IOW
|
||
|
|
#undef _IOC
|
||
|
|
#undef _IO
|
||
|
|
|
||
|
|
/* Change XSI compliant version into GNU extension hackery */
|
||
|
|
#define strerror_r(err, buf, buflen) \
|
||
|
|
(strerror_r(err, buf, buflen) ? NULL : buf)
|
||
|
|
|
||
|
|
#define _SC_LEVEL1_DCACHE_LINESIZE -1
|
||
|
|
|
||
|
|
static inline long sysconf_wrap(int name)
|
||
|
|
{
|
||
|
|
FILE *f;
|
||
|
|
int val;
|
||
|
|
|
||
|
|
switch (name) {
|
||
|
|
case _SC_LEVEL1_DCACHE_LINESIZE:
|
||
|
|
f = fopen("/sys/devices/system/cpu/cpu0/cache/index0/coherency_line_size", "r");
|
||
|
|
if (!f)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
if (fscanf(f, "%d", &val) != 1)
|
||
|
|
return 0;
|
||
|
|
|
||
|
|
fclose(f);
|
||
|
|
return val;
|
||
|
|
default:
|
||
|
|
return sysconf(name);
|
||
|
|
}
|
||
|
|
}
|
||
|
|
|
||
|
|
#define sysconf(_n) sysconf_wrap(_n)
|
||
|
|
|
||
|
|
static inline int compat_sched_getcpu(void)
|
||
|
|
{
|
||
|
|
#ifdef __NR_getcpu
|
||
|
|
unsigned int val;
|
||
|
|
|
||
|
|
if (syscall(__NR_getcpu, &val))
|
||
|
|
return -1;
|
||
|
|
|
||
|
|
return val;
|
||
|
|
#else
|
||
|
|
return -1;
|
||
|
|
#endif
|
||
|
|
}
|
||
|
|
|
||
|
|
#define sched_getcpu compat_sched_getcpu
|
||
|
|
|
||
|
|
#endif
|