New Essence OS layer; cross-compiling improvements

1 files changed, 34 insertions, 6 deletions

diff --git a/src/build_settings.cpp b/src/build_settings.cpp
index 992443f7c..956ffe1ed 100644
--- a/src/build_settings.cpp
+++ b/src/build_settings.cpp
@@ -56,8 +56,6 @@ TargetEndianKind target_endians[TargetArch_COUNT] = {
 
 
 String const ODIN_VERSION = str_lit("0.10.1");
-String cross_compile_target = str_lit("");
-String cross_compile_lib_dir = str_lit("");
 
 
 
@@ -66,6 +64,7 @@ struct TargetMetrics {
 	TargetArchKind arch;
 	isize          word_size;
 	isize          max_align;
+	String         target_triplet;
 };
 
 
@@ -109,6 +108,7 @@ struct BuildContext {
 	bool   has_resource;
 	String opt_flags;
 	String llc_flags;
+	String target_triplet;
 	String link_flags;
 	bool   is_dll;
 	bool   generate_docs;
@@ -121,6 +121,7 @@ struct BuildContext {
 	bool   no_crt;
 	bool   use_lld;
 	bool   vet;
+	bool   cross_compiling;
 
 	QueryDataSetSettings query_data_set_settings;
 
@@ -135,18 +136,19 @@ struct BuildContext {
 gb_global BuildContext build_context = {0};
 
 
-
 gb_global TargetMetrics target_windows_386 = {
 	TargetOs_windows,
 	TargetArch_386,
 	4,
 	8,
+	str_lit("i686-pc-windows"),
 };
 gb_global TargetMetrics target_windows_amd64 = {
 	TargetOs_windows,
 	TargetArch_amd64,
 	8,
 	16,
+	str_lit("x86_64-pc-windows-gnu"),
 };
 
 gb_global TargetMetrics target_linux_386 = {
@@ -154,12 +156,14 @@ gb_global TargetMetrics target_linux_386 = {
 	TargetArch_386,
 	4,
 	8,
+	str_lit("i686-pc-linux-gnu"),
 };
 gb_global TargetMetrics target_linux_amd64 = {
 	TargetOs_linux,
 	TargetArch_amd64,
 	8,
 	16,
+	str_lit("x86_64-pc-linux-gnu"),
 };
 
 gb_global TargetMetrics target_osx_amd64 = {
@@ -167,10 +171,32 @@ gb_global TargetMetrics target_osx_amd64 = {
 	TargetArch_amd64,
 	8,
 	16,
+	str_lit("x86_64-apple-darwin"),
+};
+
+gb_global TargetMetrics target_essence_amd64 = {
+	TargetOs_essence,
+	TargetArch_amd64,
+	8,
+	16,
+	str_lit("x86_64-pc-none-elf"),
 };
 
+struct NamedTargetMetrics {
+	String name;
+	TargetMetrics *metrics;
+};
 
+gb_global NamedTargetMetrics named_targets[] = {
+	{ str_lit("essence_amd64"), &target_essence_amd64 },
+	{ str_lit("macos_amd64"),   &target_osx_amd64 },
+	{ str_lit("linux_386"),     &target_linux_386 },
+	{ str_lit("linux_amd64"),   &target_linux_amd64 },
+	{ str_lit("windows_386"),   &target_windows_386 },
+	{ str_lit("windows_amd64"), &target_windows_amd64 },
+};
 
+NamedTargetMetrics *selected_target_metrics;
 
 TargetOsKind get_target_os_from_string(String str) {
 	for (isize i = 0; i < TargetOs_COUNT; i++) {
@@ -522,7 +548,7 @@ String get_fullpath_core(gbAllocator a, String path) {
 
 
 
-void init_build_context(void) {
+void init_build_context(TargetMetrics *cross_target) {
 	BuildContext *bc = &build_context;
 
 	gb_affinity_init(&bc->affinity);
@@ -554,8 +580,9 @@ void init_build_context(void) {
 		#endif
 	#endif
 
-	if (cross_compile_target.len) {
-		bc->ODIN_OS = cross_compile_target;
+	if (cross_target) {
+		metrics = *cross_target;
+		bc->cross_compiling = true;
 	}
 
 	GB_ASSERT(metrics.os != TargetOs_Invalid);
@@ -573,6 +600,7 @@ void init_build_context(void) {
 	bc->max_align   = metrics.max_align;
 	bc->link_flags  = str_lit(" ");
 	bc->opt_flags   = str_lit(" ");
+	bc->target_triplet = metrics.target_triplet;
 
 
 	gbString llc_flags = gb_string_make_reserve(heap_allocator(), 64);