Add FreeBSD support

crypto/cryptonight_common.cpp

@@ -146,6 +146,9 @@ cryptonight_ctx* cryptonight_alloc_ctx(size_t use_fast_mem, size_t use_mlock, al
 #if defined(__APPLE__)
 	ptr->long_state  = (uint8_t*)mmap(0, MEMORY, PROT_READ | PROT_WRITE,
 		MAP_PRIVATE | MAP_ANON, VM_FLAGS_SUPERPAGE_SIZE_2MB, 0);
+#elif defined(__FreeBSD__)
+	ptr->long_state = (uint8_t*)mmap(0, MEMORY, PROT_READ | PROT_WRITE,
+		MAP_PRIVATE | MAP_ANONYMOUS | MAP_ALIGNED_SUPER | MAP_PREFAULT_READ, -1, 0);
 #else
 	ptr->long_state = (uint8_t*)mmap(0, MEMORY, PROT_READ | PROT_WRITE,
 		MAP_PRIVATE | MAP_ANONYMOUS | MAP_HUGETLB | MAP_POPULATE, 0, 0);

minethd.cpp

@@ -42,8 +42,11 @@ void thd_setaffinity(std::thread::native_handle_type h, uint64_t cpu_id)
 #include <mach/thread_policy.h>
 #include <mach/thread_act.h>
 #define SYSCTL_CORE_COUNT   "machdep.cpu.core_count"
+#elif defined(__FreeBSD__)
+#include <pthread_np.h>
 #endif
 
+
 void thd_setaffinity(std::thread::native_handle_type h, uint64_t cpu_id)
 {
 #if defined(__APPLE__)
@@ -51,6 +54,11 @@ void thd_setaffinity(std::thread::native_handle_type h, uint64_t cpu_id)
 	thread_affinity_policy_data_t policy = { cpu_id };
 	mach_thread = pthread_mach_thread_np(h);
 	thread_policy_set(mach_thread, THREAD_AFFINITY_POLICY, (thread_policy_t)&policy, 1);
+#elif defined(__FreeBSD__)
+	cpuset_t mn;
+	CPU_ZERO(&mn);
+	CPU_SET(cpu_id, &mn);
+	pthread_setaffinity_np(h, sizeof(cpuset_t), &mn);
 #else
 	cpu_set_t mn;
 	CPU_ZERO(&mn);

socks.h

@@ -60,6 +60,9 @@ inline const char* sock_gai_strerror(int err, char* buf, size_t len)
 #include <unistd.h> /* Needed for close() */
 #include <errno.h>
 #include <string.h>
+#if defined(__FreeBSD__)
+#include <netinet/in.h> /* Needed for IPPROTO_TCP */
+#endif
 
 inline void sock_init() {}
 typedef int SOCKET;
@@ -76,7 +79,7 @@ inline void sock_close(SOCKET s)
 inline const char* sock_strerror(char* buf, size_t len)
 {
 	buf[0] = '\0';
-#if defined(__APPLE__)
+#if defined(__APPLE__) || defined(__FreeBSD__)
 	strerror_r(errno, buf, len);
 	return buf;
 #else