forked from mirrors/linux
de20e3200c
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: Arnaldo Carvalho de Melo <acme@redhat.com>
50 lines
1.7 KiB
C
50 lines
1.7 KiB
C
// SPDX-License-Identifier: LGPL-2.1
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// Definitions taken from glibc for use with older systems, same licensing.
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#ifndef _CPU_SET_SCHED_PERF_H
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#define _CPU_SET_SCHED_PERF_H
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#include <features.h>
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#include <sched.h>
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#ifndef CPU_EQUAL
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#ifndef __CPU_EQUAL_S
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#if __GNUC_PREREQ (2, 91)
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# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
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(__builtin_memcmp (cpusetp1, cpusetp2, setsize) == 0)
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#else
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# define __CPU_EQUAL_S(setsize, cpusetp1, cpusetp2) \
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(__extension__ \
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({ const __cpu_mask *__arr1 = (cpusetp1)->__bits; \
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const __cpu_mask *__arr2 = (cpusetp2)->__bits; \
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size_t __imax = (setsize) / sizeof (__cpu_mask); \
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size_t __i; \
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for (__i = 0; __i < __imax; ++__i) \
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if (__arr1[__i] != __arr2[__i]) \
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break; \
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__i == __imax; }))
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#endif
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#endif // __CPU_EQUAL_S
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#define CPU_EQUAL(cpusetp1, cpusetp2) \
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__CPU_EQUAL_S (sizeof (cpu_set_t), cpusetp1, cpusetp2)
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#endif // CPU_EQUAL
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#ifndef CPU_OR
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#ifndef __CPU_OP_S
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#define __CPU_OP_S(setsize, destset, srcset1, srcset2, op) \
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(__extension__ \
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({ cpu_set_t *__dest = (destset); \
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const __cpu_mask *__arr1 = (srcset1)->__bits; \
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const __cpu_mask *__arr2 = (srcset2)->__bits; \
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size_t __imax = (setsize) / sizeof (__cpu_mask); \
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size_t __i; \
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for (__i = 0; __i < __imax; ++__i) \
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((__cpu_mask *) __dest->__bits)[__i] = __arr1[__i] op __arr2[__i]; \
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__dest; }))
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#endif // __CPU_OP_S
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#define CPU_OR(destset, srcset1, srcset2) \
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__CPU_OP_S (sizeof (cpu_set_t), destset, srcset1, srcset2, |)
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#endif // CPU_OR
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#endif // _CPU_SET_SCHED_PERF_H
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