Initial commit of NetBSD port

src/build_settings.cpp

@@ -18,6 +18,7 @@ enum TargetOsKind : u16 {
 	TargetOs_essence,
 	TargetOs_freebsd,
 	TargetOs_openbsd,
+	TargetOs_netbsd,
 	TargetOs_haiku,
 	
 	TargetOs_wasi,
@@ -79,6 +80,7 @@ gb_global String target_os_names[TargetOs_COUNT] = {
 	str_lit("essence"),
 	str_lit("freebsd"),
 	str_lit("openbsd"),
+	str_lit("netbsd"),
 	str_lit("haiku"),
 	
 	str_lit("wasi"),
@@ -549,6 +551,14 @@ gb_global TargetMetrics target_openbsd_amd64 = {
 	str_lit("e-m:e-p270:32:32-p271:32:32-p272:64:64-i64:64-f80:128-n8:16:32:64-S128"),
 };
 
+gb_global TargetMetrics target_netbsd_amd64 = {
+	TargetOs_netbsd,
+	TargetArch_amd64,
+	8, 8, 8, 16,
+	str_lit("x86_64-unknown-netbsd-elf"),
+	str_lit("e-m:w-i64:64-f80:128-n8:16:32:64-S128"),
+};
+
 gb_global TargetMetrics target_haiku_amd64 = {
 	TargetOs_haiku,
 	TargetArch_amd64,
@@ -655,6 +665,7 @@ gb_global NamedTargetMetrics named_targets[] = {
 	{ str_lit("freebsd_amd64"),       &target_freebsd_amd64  },
 
 	{ str_lit("openbsd_amd64"),       &target_openbsd_amd64  },
+	{ str_lit("netbsd_amd64"),        &target_netbsd_amd64   },
 	{ str_lit("haiku_amd64"),         &target_haiku_amd64    },
 
 	{ str_lit("freestanding_wasm32"), &target_freestanding_wasm32 },
@@ -1410,6 +1421,8 @@ gb_internal void init_build_context(TargetMetrics *cross_target, Subtarget subta
 			metrics = &target_freebsd_amd64;
 		#elif defined(GB_SYSTEM_OPENBSD)
 			metrics = &target_openbsd_amd64;
+		#elif defined(GB_SYSTEM_NETBSD)
+			metrics = &target_netbsd_amd64;
 		#elif defined(GB_SYSTEM_HAIKU)
 			metrics = &target_haiku_amd64;
 		#elif defined(GB_CPU_ARM)
@@ -1523,6 +1536,9 @@ gb_internal void init_build_context(TargetMetrics *cross_target, Subtarget subta
 		case TargetOs_openbsd:
 			bc->link_flags = str_lit("-arch x86-64 ");
 			break;
+		case TargetOs_netbsd:
+			bc->link_flags = str_lit("-arch x86-64 ");
+			break;
 		case TargetOs_haiku:
 			bc->link_flags = str_lit("-arch x86-64 ");
 			break;
@@ -2002,6 +2018,7 @@ gb_internal bool init_build_paths(String init_filename) {
 		case TargetOs_essence:
 		case TargetOs_freebsd:
 		case TargetOs_openbsd:
+		case TargetOs_netbsd:
 		case TargetOs_haiku:
 			gb_printf_err("-no-crt on unix systems requires either -default-to-nil-allocator or -default-to-panic-allocator to also be present because the default allocator requires crt\n");
 			return false;