X-Git-Url: https://git.saurik.com/apple/system_cmds.git/blobdiff_plain/1a7e3f61d38d679bba59130891c2031b5a0092b6..bd6521f0fc816ab056bc71376f9706a69b3b52c1:/KDBG/Kernel.cpp

diff --git a/KDBG/Kernel.cpp b/KDBG/Kernel.cpp
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--- /dev/null
+++ b/KDBG/Kernel.cpp
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+//
+//  Kernel.cpp
+//  KDBG
+//
+//  Created by James McIlree on 4/17/13.
+//  Copyright (c) 2014 Apple. All rights reserved.
+//
+
+#include "KDebug.h"
+
+using namespace util;
+
+bool Kernel::is_64_bit()
+{
+	int mib[4];
+	size_t len;
+	struct kinfo_proc kp;
+
+	/* Now determine if the kernel is running in 64-bit mode */
+	mib[0] = CTL_KERN;
+	mib[1] = KERN_PROC;
+	mib[2] = KERN_PROC_PID;
+	mib[3] = 0; /* kernproc, pid 0 */
+	len = sizeof(kp);
+	if (sysctl(mib, sizeof(mib)/sizeof(mib[0]), &kp, &len, NULL, 0) == -1) {
+		THROW("sysctl to get kernel size failed");
+	}
+
+	if (kp.kp_proc.p_flag & P_LP64)
+		return true;
+
+	return false;
+}
+
+uint32_t Kernel::active_cpu_count()
+{
+	int mib[4];
+	size_t len;
+	int	num_cpus;
+
+	/*
+	 * grab the number of cpus and scale the buffer size
+	 */
+	mib[0] = CTL_HW;
+	mib[1] = HW_NCPU;
+	mib[2] = 0;
+	len = sizeof(num_cpus);
+
+	sysctl(mib, 2, &num_cpus, &len, NULL, 0);
+
+	return num_cpus;
+}