Saran Tunyasuvunakool
df25d7d602
Current users only get a cryptic "Illegal instruction" crash. Context: https://github.com/deepmind/mujoco/issues/611 PiperOrigin-RevId: 491705647 Change-Id: I1285897a36e858300ee3d125957e90754be9a7f7
40 lines
1.3 KiB
C
40 lines
1.3 KiB
C
// Copyright 2022 DeepMind Technologies Limited
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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#if defined(__APPLE__) && defined(__AVX__)
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#include <stdio.h>
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#include <string.h>
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#include <sys/sysctl.h>
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__attribute__((weak, visibility("default"))) void _mj_rosettaError(const char* msg) {
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fprintf(stderr, "%s\n", msg);
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__asm__ __volatile__ ("ud2"); // raises SIGILL but leave this function at the top of the stack
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}
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__attribute__((constructor(10000), target("no-avx"))) static void _mj_checkRosetta() {
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int is_translated = 0;
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{
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size_t len = sizeof(is_translated);
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if (sysctlbyname("sysctl.proc_translated", &is_translated, &len, NULL, 0)) {
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is_translated = 0;
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}
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}
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if (is_translated) {
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_mj_rosettaError("MuJoCo cannot be run under Rosetta 2 on an Apple Silicon machine.");
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}
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}
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#endif // defined(__APPLE__) && defined(__AVX__)
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