Use the platform linker by default, which will just be a call to "cc" (the Win solution will be done later)

src/build/build_options.h

@@ -230,4 +230,4 @@ typedef struct
 
 
 BuildOptions parse_arguments(int argc, const char *argv[]);
-ArchOsTarget arch_os_target_from_string(const char *target);
+ArchOsTarget arch_os_target_from_string(const char *target);

src/build/project_creation.h

@@ -5,4 +5,4 @@
 // a copy of which can be found in the LICENSE file.
 
 struct BuildOptions_;
-void create_project(struct BuildOptions_ *build_options);
+void create_project(struct BuildOptions_ *build_options);

src/compiler/compiler.c

@@ -182,9 +182,20 @@ void compiler_compile(BuildTarget *target)
 		vec_add(obj_files, file_name);
 	}
 
-	if (create_exe && obj_format_linking_supported(platform_target.object_format))
+	if (create_exe)
 	{
-		linker(target->name, obj_files, source_count);
+		if (target->arch_os_target == ARCH_OS_TARGET_DEFAULT)
+		{
+			platform_linker(target->name, obj_files, source_count);
+		}
+		else
+		{
+			if (!obj_format_linking_supported(platform_target.object_format) || !linker(target->name, obj_files, source_count))
+			{
+				printf("No linking is performed due to missing linker support.");
+				target->run_after_compile = false;
+			}
+		}
 		if (target->run_after_compile)
 		{
 			system(strformat("./%s", target->name));

src/compiler/compiler_internal.h

@@ -1412,13 +1412,13 @@ extern const char *kw___trunc;
 #define AST_NEW_TOKEN(_kind, _token) new_ast(_kind, source_span_from_token_id(_token.id))
 #define AST_NEW(_kind, _loc) new_ast(_kind, _loc)
 
-ARENA_DEF(ast, Ast);
-ARENA_DEF(expr, Expr);
-ARENA_DEF(sourceloc, SourceLocation);
-ARENA_DEF(toktype, char);
-ARENA_DEF(tokdata, TokenData);
-ARENA_DEF(decl, Decl);
-ARENA_DEF(type_info, TypeInfo);
+ARENA_DEF(ast, Ast)
+ARENA_DEF(expr, Expr)
+ARENA_DEF(sourceloc, SourceLocation)
+ARENA_DEF(toktype, char)
+ARENA_DEF(tokdata, TokenData)
+ARENA_DEF(decl, Decl)
+ARENA_DEF(type_info, TypeInfo)
 
 static inline bool ast_ok(Ast *ast) { return ast == NULL || ast->ast_kind != AST_POISONED; }
 static inline bool ast_poison(Ast *ast) { ast->ast_kind = AST_POISONED; return false; }
@@ -1998,8 +1998,8 @@ static inline size_t type_min_alignment(size_t a, size_t b)
 }
 
 bool obj_format_linking_supported(ObjectFormatType format_type);
-void linker(const char *output_file, const char **files, unsigned file_count);
-
+bool linker(const char *output_file, const char **files, unsigned file_count);
+void platform_linker(const char *output_file, const char **files, unsigned file_count);
 
 #define TRY_AST_OR(_ast_stmt, _res) ({ Ast* _ast = (_ast_stmt); if (!ast_ok(_ast)) return _res; _ast; })
 #define TRY_EXPR_OR(_expr_stmt, _res) ({ Expr* _expr = (_expr_stmt); if (!expr_ok(_expr)) return _res; _expr; })

src/compiler/linker.c

@@ -14,7 +14,7 @@ static void add_files(const char ***args, const char **files_to_link, unsigned f
 	}
 }
 
-static void link_exe(const char *output_file, const char **files_to_link, unsigned file_count)
+static bool link_exe(const char *output_file, const char **files_to_link, unsigned file_count)
 {
 	const char **args = NULL;
 	vec_add(args, "-o");
@@ -24,7 +24,7 @@ static void link_exe(const char *output_file, const char **files_to_link, unsign
 	switch (platform_target.os)
 	{
 		case OS_TYPE_WIN32:
-			break;
+			return false;
 		case OS_TYPE_MACOSX:
 			add_files(&args, files_to_link, file_count);
 			vec_add(args, "-lSystem");
@@ -44,14 +44,13 @@ static void link_exe(const char *output_file, const char **files_to_link, unsign
 			break;
 		case OS_TYPE_WATCHOS:
 		case OS_TYPE_IOS:
-			TODO
+			return false;
 		case OS_TYPE_WASI:
-			break;
+			return false;
 		case OS_TYPE_OPENBSD:
 		case OS_TYPE_NETBSD:
 		case OS_TYPE_FREE_BSD:
-			TODO
-			break;
+			return false;
 		case OS_TYPE_LINUX:
 			vec_add(args, "-m");
 			switch (platform_target.arch)
@@ -84,21 +83,17 @@ static void link_exe(const char *output_file, const char **files_to_link, unsign
 					vec_add(args, "--dynamic-linker=/lib64/ld-linux-x86-64.so.2");
 					break;
 				case ARCH_TYPE_X86:
-					TODO
-					vec_add(args, "elf_i386");
-					break;
+//					vec_add(args, "elf_i386");
+					return false;
 				case ARCH_TYPE_AARCH64:
-					TODO
 					vec_add(args, "aarch64elf");
-					break;
+					return false;
 				case ARCH_TYPE_RISCV32:
-					TODO
 					vec_add(args, "elf32lriscv");
-					break;
+					return false;
 				case ARCH_TYPE_RISCV64:
 					vec_add(args, "elf64lriscv");
-					TODO
-					break;
+					return false;
 				default:
 					UNREACHABLE
 			}
@@ -108,7 +103,7 @@ static void link_exe(const char *output_file, const char **files_to_link, unsign
 		default:
 			add_files(&args, files_to_link, file_count);
 			vec_add(args, platform_target.pie ? "-pie" : "-no_pie");
-			break;
+			return false;
 	}
 
 	bool success;
@@ -133,6 +128,7 @@ static void link_exe(const char *output_file, const char **files_to_link, unsign
 	{
 		error_exit("Failed to create an executable: %s", error);
 	}
+	return true;
 }
 
 bool obj_format_linking_supported(ObjectFormatType format_type)
@@ -153,9 +149,47 @@ bool obj_format_linking_supported(ObjectFormatType format_type)
 	UNREACHABLE
 
 }
-void linker(const char *output_file, const char **files, unsigned file_count)
+
+const char *concat_string_parts(const char **args)
 {
-	link_exe(output_file, files, file_count);
+	unsigned size_needed = 0;
+	VECEACH(args, i)
+	{
+		size_needed += strlen(args[i]) + 1;
+	}
+	char *output = malloc_arena(size_needed);
+	char *ptr = output;
+	VECEACH(args, i)
+	{
+		unsigned len = strlen(args[i]);
+		memcpy(ptr, args[i], len);
+		ptr += len;
+		*(ptr++) = ' ';
+	}
+	ptr[-1] = '\0';
+	return output;
+}
+
+void platform_linker(const char *output_file, const char **files, unsigned file_count)
+{
+	const char **parts = NULL;
+	vec_add(parts, "cc");
+	vec_add(parts, "-o");
+	vec_add(parts, output_file);
+	for (unsigned i = 0; i < file_count; i++)
+	{
+		vec_add(parts, files[i]);
+	}
+	const char *output = concat_string_parts(parts);
+	if (system(output) != 0)
+	{
+		error_exit("Failed to link executable '%s' using command '%s'.\n", output_file, output);
+	}
+	printf("Program linked to executable '%s'.\n", output_file);
+}
+bool linker(const char *output_file, const char **files, unsigned file_count)
+{
+	return link_exe(output_file, files, file_count);
 }
 
 /**

src/compiler/llvm_codegen.c

@@ -10,22 +10,25 @@ static void diagnostics_handler(LLVMDiagnosticInfoRef ref, void *context)
 {
 	char *message = LLVMGetDiagInfoDescription(ref);
 	LLVMDiagnosticSeverity severity = LLVMGetDiagInfoSeverity(ref);
-	const char *severerity_name = "unknown";
+	const char *severity_name;
 	switch (severity)
 	{
 		case LLVMDSError:
 			error_exit("LLVM error generating code for %s: %s", ((GenContext *)context)->ast_context->module->name, message);
 		case LLVMDSWarning:
-			severerity_name = "warning";
+			severity_name = "warning";
 			break;
 		case LLVMDSRemark:
-			severerity_name = "remark";
+			severity_name = "remark";
 			break;
 		case LLVMDSNote:
-			severerity_name = "note";
+			severity_name = "note";
+			break;
+		default:
+			severity_name = "message";
 			break;
 	}
-	DEBUG_LOG("LLVM message [%s]: %s ", severerity_name, message);
+	DEBUG_LOG("LLVM %s: %s ", severity_name, message);
 	LLVMDisposeMessage(message);
 }
 

src/compiler/target.h

@@ -367,4 +367,4 @@ typedef struct
 } PlatformTarget;
 
 
-extern PlatformTarget platform_target;
+extern PlatformTarget platform_target;

src/compiler_tests/benchmark.c

@@ -9,9 +9,9 @@ static int begin = 0;
 
 void bench_begin(void)
 {
-	begin = clock();
+	begin = (int)clock();
 }
 double bench_mark(void)
 {
 	return (double)(clock() - begin) / (double)CLOCKS_PER_SEC;
-}
+}

src/compiler_tests/benchmark.h

@@ -6,4 +6,4 @@
 
 
 void bench_begin(void);
-double bench_mark(void);
+double bench_mark(void);

src/compiler_tests/tests.h

@@ -5,4 +5,4 @@
 // a copy of which can be found in the LICENSE file.
 
 
-void compiler_tests(void);
+void compiler_tests(void);

src/main.c

@@ -21,7 +21,7 @@ int main(int argc, const char *argv[])
 	// Parse arguments.
 	BuildOptions build_options = parse_arguments(argc, argv);
 
-	BuildTarget build_target = {};
+	BuildTarget build_target = { .name = NULL };
 
 	switch (build_options.command)
 	{

src/utils/common.h

@@ -26,4 +26,4 @@
 #else
 #define PLATFORM_WINDOWS 0
 #define PLATFORM_POSIX 1
-#endif
+#endif

src/utils/whereami.h

@@ -4,4 +4,4 @@
 // Use of this source code is governed by a LGPLv3.0
 // a copy of which can be found in the LICENSE file.
 
-const char *find_executable_path(void);
+const char *find_executable_path(void);