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Commit de20e320 authored by Arnaldo Carvalho de Melo's avatar Arnaldo Carvalho de Melo
Browse files

perf tools: Add fallback versions for CPU_{OR,EQUAL}() 

From the glibc sources, so that we can keep the tooling buildable in
older systems while using recent sched.h CPU_ macros.

Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexey Budankov <alexey.budankov@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: https://lkml.kernel.org/n/tip-hvm9ysmrjip75ebdzhzoh429@git.kernel.org


Signed-off-by: default avatarArnaldo Carvalho de Melo <acme@redhat.com>
parent c44a8b44

tools/perf/util/cpu-set-sched.h

0 → 100644
+50 −0
Original line number Diff line number Diff line 
// SPDX-License-Identifier: LGPL-2.1

// Definitions taken from glibc for use with older systems, same licensing.

#ifndef _CPU_SET_SCHED_PERF_H

#define _CPU_SET_SCHED_PERF_H



#include <features.h>

#include <sched.h>



#ifndef CPU_EQUAL

#ifndef __CPU_EQUAL_S

#if __GNUC_PREREQ (2, 91)

# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \

  (__builtin_memcmp (cpusetp1, cpusetp2, setsize) == 0)

#else

# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \

  (__extension__							      \

   ({ const __cpu_mask *__arr1 = (cpusetp1)->__bits;			      \

      const __cpu_mask *__arr2 = (cpusetp2)->__bits;			      \

      size_t __imax = (setsize) / sizeof (__cpu_mask);			      \

      size_t __i;							      \

      for (__i = 0; __i < __imax; ++__i)				      \

	if (__arr1[__i] != __arr2[__i])					      \

	  break;							      \

      __i == __imax; }))

#endif

#endif // __CPU_EQUAL_S



#define CPU_EQUAL(cpusetp1, cpusetp2) \

  __CPU_EQUAL_S (sizeof (cpu_set_t), cpusetp1, cpusetp2)

#endif // CPU_EQUAL



#ifndef CPU_OR

#ifndef __CPU_OP_S

#define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \

  (__extension__							      \

   ({ cpu_set_t *__dest = (destset);					      \

      const __cpu_mask *__arr1 = (srcset1)->__bits;			      \

      const __cpu_mask *__arr2 = (srcset2)->__bits;			      \

      size_t __imax = (setsize) / sizeof (__cpu_mask);			      \

      size_t __i;							      \

      for (__i = 0; __i < __imax; ++__i)				      \

	((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i];    \

      __dest; }))

#endif // __CPU_OP_S



#define CPU_OR(destset, srcset1, srcset2) \

  __CPU_OP_S (sizeof (cpu_set_t), destset, srcset1, srcset2, |)

#endif // CPU_OR



#endif // _CPU_SET_SCHED_PERF_H