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850ec0657d
TEST=util_test R=rsesek@chromium.org Review URL: https://codereview.chromium.org/575823002
72 lines
2.5 KiB
C++
72 lines
2.5 KiB
C++
// Copyright 2014 The Crashpad Authors. All rights reserved.
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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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#include "util/mach/mach_extensions.h"
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#include <AvailabilityMacros.h>
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#include <pthread.h>
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#include "util/mac/mac_util.h"
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namespace crashpad {
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mach_port_t MachThreadSelf() {
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// The pthreads library keeps its own copy of the mach_port_t. Using it does
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// not increment its reference count.
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return pthread_mach_thread_np(pthread_self());
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}
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exception_mask_t ExcMaskAll() {
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// This is necessary because of the way that the kernel validates
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// exception_mask_t arguments to
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// {host,task,thread}_{get,set,swap}_exception_ports(). It is strict,
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// rejecting attempts to operate on any bits that it does not recognize. See
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// 10.9.4 xnu-2422.110.17/osfmk/mach/ipc_host.c and
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// xnu-2422.110.17/osfmk/mach/ipc_tt.c.
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#if MAC_OS_X_VERSION_MIN_REQUIRED < MAC_OS_X_VERSION_10_9
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int mac_os_x_minor_version = MacOSXMinorVersion();
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#endif
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// See 10.6.8 xnu-1504.15.3/osfmk/mach/exception_types.h. 10.7 uses the same
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// definition as 10.6. See 10.7.5 xnu-1699.32.7/osfmk/mach/exception_types.h
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const exception_mask_t kExcMaskAll_10_6 =
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EXC_MASK_BAD_ACCESS | EXC_MASK_BAD_INSTRUCTION | EXC_MASK_ARITHMETIC |
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EXC_MASK_EMULATION | EXC_MASK_SOFTWARE | EXC_MASK_BREAKPOINT |
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EXC_MASK_SYSCALL | EXC_MASK_MACH_SYSCALL | EXC_MASK_RPC_ALERT |
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EXC_MASK_MACHINE;
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#if MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_7
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if (mac_os_x_minor_version <= 7) {
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return kExcMaskAll_10_6;
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}
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#endif
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// 10.8 added EXC_MASK_RESOURCE. See 10.8.5
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// xnu-2050.48.11/osfmk/mach/exception_types.h.
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const exception_mask_t kExcMaskAll_10_8 =
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kExcMaskAll_10_6 | EXC_MASK_RESOURCE;
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#if MAC_OS_X_VERSION_MIN_REQUIRED <= MAC_OS_X_VERSION_10_8
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if (mac_os_x_minor_version <= 8) {
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return kExcMaskAll_10_8;
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}
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#endif
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// 10.9 added EXC_MASK_GUARD. See 10.9.4
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// xnu-2422.110.17/osfmk/mach/exception_types.h.
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const exception_mask_t kExcMaskAll_10_9 = kExcMaskAll_10_8 | EXC_MASK_GUARD;
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return kExcMaskAll_10_9;
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}
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} // namespace crashpad
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