libobs: Implement logging processor model on bsd

Implement the log_processor_info function on bsd and add ifdefs to only
build the implementation specific to the platform.
Also add an ifdef around the call to that function to make sure it will
only be called on platforms where it is actually implemented.

libobs/obs-nix.c

@@ -23,6 +23,9 @@
 #include <stdlib.h>
 #include <stdio.h>
 #include <unistd.h>
+#if defined(__FreeBSD__)
+#include <sys/sysctl.h>
+#endif
 #include <sys/sysinfo.h>
 #include <sys/utsname.h>
 #include <inttypes.h>
@@ -87,6 +90,7 @@ static void log_processor_cores(void)
 	     sysconf(_SC_NPROCESSORS_ONLN));
 }
 
+#if defined(__linux__)
 static void log_processor_info(void)
 {
 	FILE *fp;
@@ -129,6 +133,27 @@ static void log_processor_info(void)
 	dstr_free(&processor);
 	free(line);
 }
+#elif defined(__FreeBSD__)
+static void log_processor_info(void)
+{
+	int mib[2];
+	size_t len;
+	char *proc;
+
+	mib[0] = CTL_HW;
+	mib[1] = HW_MODEL;
+
+	sysctl(mib, 2, NULL, &len, NULL, 0);
+	proc = bmalloc(len);
+	if (!proc)
+		return;
+
+	sysctl(mib, 2, proc, &len, NULL, 0);
+	blog(LOG_INFO, "Processor: %s", proc);
+
+	bfree(proc);
+}
+#endif
 
 static void log_memory_info(void)
 {
@@ -195,7 +220,9 @@ static void log_distribution_info(void)
 void log_system_info(void)
 {
 	log_processor_cores();
+#if defined(__linux__) || defined(__FreeBSD__)
 	log_processor_info();
+#endif
 	log_memory_info();
 	log_kernel_version();
 	log_distribution_info();