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Add OpenMP support

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Justine Tunney 2024-01-28 21:57:40 -08:00
parent c1e18e7903
commit 5f8e9f14c1
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742 changed files with 94643 additions and 1279 deletions
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47
libc/calls/sched_getcpu.c Normal file
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@ -0,0 +1,47 @@
/*-*- mode:c;indent-tabs-mode:nil;c-basic-offset:2;tab-width:8;coding:utf-8 -*-│
│ vi: set et ft=c ts=2 sts=2 sw=2 fenc=utf-8 :vi │
╞══════════════════════════════════════════════════════════════════════════════╡
│ Copyright 2024 Justine Alexandra Roberts Tunney │
│ │
│ Permission to use, copy, modify, and/or distribute this software for │
│ any purpose with or without fee is hereby granted, provided that the │
│ above copyright notice and this permission notice appear in all copies. │
│ │
│ THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL │
│ WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED │
│ WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE │
│ AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL │
│ DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR │
│ PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER │
│ TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR │
│ PERFORMANCE OF THIS SOFTWARE. │
╚─────────────────────────────────────────────────────────────────────────────*/
#include "libc/calls/calls.h"
#include "libc/calls/struct/cpuset.h"
#include "libc/dce.h"
#include "libc/nexgen32e/rdtscp.h"
#include "libc/nexgen32e/x86feature.h"
#include "libc/nt/struct/processornumber.h"
#include "libc/nt/synchronization.h"
int sys_getcpu(unsigned *opt_cpu, unsigned *opt_node, void *tcache);
/**
* Returns ID of CPU on which thread is currently scheduled.
*/
int sched_getcpu(void) {
if (X86_HAVE(RDTSCP)) {
unsigned tsc_aux;
rdtscp(&tsc_aux);
return TSC_AUX_CORE(tsc_aux);
} else if (IsWindows()) {
struct NtProcessorNumber pn;
GetCurrentProcessorNumberEx(&pn);
return 64 * pn.Group + pn.Number;
} else {
unsigned cpu = 0;
int rc = sys_getcpu(&cpu, 0, 0);
if (rc == -1) return -1;
return cpu;
}
}

2
libc/calls/struct/cpuset.h
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@ -53,5 +53,7 @@ int CPU_COUNT_S(size_t, const cpu_set_t *) libcesque;
#define CPU_CLR_S(i, size, set) _CPU_S(i, size, set, &= ~)
#define CPU_ISSET_S(i, size, set) _CPU_S(i, size, set, &)
typedef cpu_set_t cpuset_t; /* for freebsd compatibility */
COSMOPOLITAN_C_END_
#endif /* COSMOPOLITAN_LIBC_CALLS_STRUCT_CPUSET_H_ */