diff options
Diffstat (limited to 'externals/breakpad/src/common/mac/arch_utilities.cc')
-rw-r--r-- | externals/breakpad/src/common/mac/arch_utilities.cc | 160 |
1 files changed, 160 insertions, 0 deletions
diff --git a/externals/breakpad/src/common/mac/arch_utilities.cc b/externals/breakpad/src/common/mac/arch_utilities.cc new file mode 100644 index 0000000000..af6c36356c --- /dev/null +++ b/externals/breakpad/src/common/mac/arch_utilities.cc @@ -0,0 +1,160 @@ +// Copyright 2012 Google LLC +// +// Redistribution and use in source and binary forms, with or without +// modification, are permitted provided that the following conditions are +// met: +// +// * Redistributions of source code must retain the above copyright +// notice, this list of conditions and the following disclaimer. +// * Redistributions in binary form must reproduce the above +// copyright notice, this list of conditions and the following disclaimer +// in the documentation and/or other materials provided with the +// distribution. +// * Neither the name of Google LLC nor the names of its +// contributors may be used to endorse or promote products derived from +// this software without specific prior written permission. +// +// THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS +// "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT +// LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR +// A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT +// OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, +// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT +// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, +// DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY +// THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT +// (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE +// OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. + +#ifdef HAVE_CONFIG_H +#include <config.h> // Must come first +#endif + +#include "common/mac/arch_utilities.h" + +#include <mach/machine.h> +#include <mach-o/arch.h> +#include <mach-o/fat.h> +#include <stdio.h> +#include <string.h> + +#ifdef __APPLE__ +#include <mach-o/utils.h> +#endif + +namespace { + +enum Architecture { + kArch_i386 = 0, + kArch_x86_64, + kArch_x86_64h, + kArch_arm, + kArch_arm64, + kArch_arm64e, + kArch_ppc, + // This must be last. + kNumArchitectures +}; + +struct NamedArchInfo { + const char* name; + ArchInfo info; +}; + +// enum Architecture above and kKnownArchitectures below +// must be kept in sync. +constexpr NamedArchInfo kKnownArchitectures[] = { + {"i386", {CPU_TYPE_I386, CPU_SUBTYPE_I386_ALL}}, + {"x86_64", {CPU_TYPE_X86_64, CPU_SUBTYPE_X86_64_ALL}}, + {"x86_64h", {CPU_TYPE_X86_64, CPU_SUBTYPE_X86_64_H}}, + {"arm", {CPU_TYPE_ARM, CPU_SUBTYPE_ARM_ALL}}, + {"arm64", {CPU_TYPE_ARM64, CPU_SUBTYPE_ARM64_ALL}}, + {"arm64e", {CPU_TYPE_ARM64, CPU_SUBTYPE_ARM64E}}, + {"ppc", {CPU_TYPE_POWERPC, CPU_SUBTYPE_POWERPC_ALL}}}; + +} // namespace + +ArchInfo GetLocalArchInfo(void) { + Architecture arch; +#if defined(__i386__) + arch = kArch_i386; +#elif defined(__x86_64__) + arch = kArch_x86_64; +#elif defined(__arm64__) || defined(__aarch64__) + arch = kArch_arm64; +#elif defined(__arm__) + arch = kArch_arm; +#elif defined(__powerpc__) + arch = kArch_ppc; +#else + #error "Unsupported CPU architecture" +#endif + return kKnownArchitectures[arch].info; +} + +#ifdef __APPLE__ + +std::optional<ArchInfo> GetArchInfoFromName(const char* arch_name) { + if (__builtin_available(macOS 13.0, iOS 16.0, tvOS 16.0, *)) { + cpu_type_t type; + cpu_subtype_t subtype; + if (macho_cpu_type_for_arch_name(arch_name, &type, &subtype)) { + return ArchInfo{type, subtype}; + } + } else { +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wdeprecated-declarations" + const NXArchInfo* info = NXGetArchInfoFromName(arch_name); +#pragma clang diagnostic pop + if (info) { + return ArchInfo{info->cputype, info->cpusubtype}; + } + } + return std::nullopt; +} + +const char* GetNameFromCPUType(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype) { + if (__builtin_available(macOS 13.0, iOS 16.0, tvOS 16.0, *)) { + const char* name = macho_arch_name_for_cpu_type(cpu_type, cpu_subtype); + if (name) { + return name; + } + } else { +#pragma clang diagnostic push +#pragma clang diagnostic ignored "-Wdeprecated-declarations" + const NXArchInfo* info = NXGetArchInfoFromCpuType(cpu_type, cpu_subtype); +#pragma clang diagnostic pop + if (info) { + return info->name; + } + } + + return kUnknownArchName; +} + +#else + +std::optional<ArchInfo> GetArchInfoFromName(const char* arch_name) { + for (int arch = 0; arch < kNumArchitectures; ++arch) { + if (!strcmp(arch_name, kKnownArchitectures[arch].name)) { + return kKnownArchitectures[arch].info; + } + } + return std::nullopt; +} + +const char* GetNameFromCPUType(cpu_type_t cpu_type, cpu_subtype_t cpu_subtype) { + const char* candidate = kUnknownArchName; + for (int arch = 0; arch < kNumArchitectures; ++arch) { + if (kKnownArchitectures[arch].info.cputype == cpu_type) { + if (kKnownArchitectures[arch].info.cpusubtype == cpu_subtype) { + return kKnownArchitectures[arch].name; + } + if (!strcmp(candidate, kUnknownArchName)) { + candidate = kKnownArchitectures[arch].name; + } + } + } + return candidate; +} +#endif // __APPLE__ |