Added DMI reader for macOS.

src/Summary.cpp

@@ -147,13 +147,13 @@ static void print_memory()
             continue;
         }
 
-        if (!memory.size()) {
+        if (memory.size()) {
+            Log::print(WHITE_BOLD("   %-13s") "%s: " CYAN_BOLD("%" PRIu64) CYAN(" GB ") WHITE_BOLD("%s @ %" PRIu64 " MHz ") BLACK_BOLD("%s"),
+                       "", memory.slot().data(), memory.size() / oneGiB, memory.type(), memory.speed() / 1000000ULL, memory.product().data());
+        }
+        else if (!Cpu::info()->isVM()) {
             Log::print(WHITE_BOLD("   %-13s") "%s: " BLACK_BOLD("<empty>"), "", memory.slot().data());
-            continue;
         }
-
-        Log::print(WHITE_BOLD("   %-13s") "%s: " CYAN_BOLD("%" PRIu64) CYAN(" GB ") WHITE_BOLD("%s @ %" PRIu64 " MHz ") BLACK_BOLD("%s"),
-                   "", memory.slot().data(), memory.size() / oneGiB, memory.type(), memory.speed() / 1000000ULL, memory.product().data());
     }
 
     if (reader.board().isValid()) {

src/hw/dmi/DmiReader.cpp

@@ -70,6 +70,10 @@ bool xmrig::DmiReader::decode(uint8_t *buf)
         while (static_cast<uint32_t>(next - buf + 1) < m_size && (next[0] != 0 || next[1] != 0)) {
             next++;
         }
+
+#       ifdef XMRIG_OS_APPLE
+        while ((unsigned long)(next - buf + 1) < m_size && (next[0] == 0 && next[1] == 0))
+#       endif
         next += 2;
 
         if (static_cast<uint32_t>(next - buf) > m_size) {

src/hw/dmi/DmiReader_mac.cpp

@@ -0,0 +1,108 @@
+/* XMRig
+ * Copyright (c) 2002-2006 Hugo Weber  <address@hidden>
+ * Copyright (c) 2018-2021 SChernykh   <https://github.com/SChernykh>
+ * Copyright (c) 2016-2021 XMRig       <https://github.com/xmrig>, <support@xmrig.com>
+ *
+ *   This program is free software: you can redistribute it and/or modify
+ *   it under the terms of the GNU General Public License as published by
+ *   the Free Software Foundation, either version 3 of the License, or
+ *   (at your option) any later version.
+ *
+ *   This program is distributed in the hope that it will be useful,
+ *   but WITHOUT ANY WARRANTY; without even the implied warranty of
+ *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ *   GNU General Public License for more details.
+ *
+ *   You should have received a copy of the GNU General Public License
+ *   along with this program. If not, see <http://www.gnu.org/licenses/>.
+ */
+
+
+#include "hw/dmi/DmiReader.h"
+#include "hw/dmi/DmiTools.h"
+
+
+#include <Carbon/Carbon.h>
+
+
+namespace xmrig {
+
+
+static int checksum(const uint8_t *buf, size_t len)
+{
+    uint8_t sum = 0;
+
+    for (size_t a = 0; a < len; a++) {
+        sum += buf[a];
+    }
+
+    return (sum == 0);
+}
+
+
+static uint8_t *dmi_table(uint32_t base, uint32_t &len, io_service_t service)
+{
+    CFMutableDictionaryRef properties = nullptr;
+    if (IORegistryEntryCreateCFProperties(service, &properties, kCFAllocatorDefault, kNilOptions) != kIOReturnSuccess) {
+        return nullptr;
+    }
+
+    CFDataRef data;
+    uint8_t *buf = nullptr;
+
+    if (CFDictionaryGetValueIfPresent(properties, CFSTR("SMBIOS"), (const void **)&data)) {
+        assert(len == CFDataGetLength(data));
+
+        len = CFDataGetLength(data);
+        buf = reinterpret_cast<uint8_t *>(malloc(len));
+
+        CFDataGetBytes(data, CFRangeMake(0, len), buf);
+    }
+
+    CFRelease(properties);
+
+    return buf;
+}
+
+
+static uint8_t *smbios_decode(uint8_t *buf, uint32_t &size, uint32_t &version, io_service_t service)
+{
+    if (buf[0x05] > 0x20 || !checksum(buf, buf[0x05]) || memcmp(buf + 0x10, "_DMI_", 5) != 0 || !checksum(buf + 0x10, 0x0F))  {
+        return nullptr;
+    }
+
+    version = ((buf[0x06] << 8) + buf[0x07]) << 8;
+    size    = dmi_get<uint16_t>(buf + 0x16);
+
+    return dmi_table(dmi_get<uint32_t>(buf + 0x18), size, service);
+}
+
+} // namespace xmrig
+
+
+bool xmrig::DmiReader::read()
+{
+    mach_port_t port;
+    IOMasterPort(MACH_PORT_NULL, &port);
+
+    io_service_t service = IOServiceGetMatchingService(port, IOServiceMatching("AppleSMBIOS"));
+    if (service == MACH_PORT_NULL) {
+        return false;
+    }
+
+    CFDataRef data = reinterpret_cast<CFDataRef>(IORegistryEntryCreateCFProperty(service, CFSTR("SMBIOS-EPS"), kCFAllocatorDefault, kNilOptions));
+    if (!data) {
+        return false;
+    }
+
+    uint8_t buf[0x20]{};
+    CFDataGetBytes(data, CFRangeMake(0, sizeof(buf)), buf);
+    CFRelease(data);
+
+    auto smb      = smbios_decode(buf, m_size, m_version, service);
+    const bool rc = smb ? decode(smb) : false;
+
+    IOObjectRelease(service);
+
+    return rc;
+}

src/hw/dmi/dmi.cmake

@@ -19,6 +19,10 @@ if (WITH_DMI)
         list(APPEND SOURCES src/hw/dmi/DmiReader_win.cpp)
     elseif(XMRIG_OS_LINUX OR XMRIG_OS_FREEBSD)
         list(APPEND SOURCES src/hw/dmi/DmiReader_unix.cpp)
+    elseif(XMRIG_OS_MACOS)
+        list(APPEND SOURCES src/hw/dmi/DmiReader_mac.cpp)
+        find_library(CORESERVICES_LIBRARY CoreServices)
+        list(APPEND EXTRA_LIBS ${CORESERVICES_LIBRARY})
     endif()
 else()
     remove_definitions(/DXMRIG_FEATURE_DMI)