debug/release mode

README.md

@@ -40,7 +40,6 @@ readable, safe, optimal, and concise code to solve any computing problem.
 
 ## Roadmap
 
- * Debug/Release mode.
  * don't hardcode the link against libc
  * C style comments.
  * Unit tests.

src/codegen.cpp

@@ -60,6 +60,8 @@ struct CodeGen {
     LLVMTargetDataRef target_data_ref;
     unsigned pointer_size_bytes;
     bool is_static;
+    bool strip_debug_symbols;
+    CodeGenBuildType build_type;
     LLVMTargetMachineRef target_machine;
     Buf in_file;
     Buf in_dir;
@@ -77,19 +79,33 @@ struct CodeGenNode {
     } data;
 };
 
-CodeGen *create_codegen(AstNode *root, bool is_static, Buf *in_full_path) {
+CodeGen *create_codegen(AstNode *root, Buf *in_full_path) {
     CodeGen *g = allocate<CodeGen>(1);
     g->root = root;
     g->fn_defs.init(32);
     g->fn_table.init(32);
     g->str_table.init(32);
     g->type_table.init(32);
-    g->is_static = is_static;
+    g->is_static = false;
+    g->build_type = CodeGenBuildTypeDebug;
+    g->strip_debug_symbols = false;
 
     os_path_split(in_full_path, &g->in_dir, &g->in_file);
     return g;
 }
 
+void codegen_set_build_type(CodeGen *g, CodeGenBuildType build_type) {
+    g->build_type = build_type;
+}
+
+void codegen_set_is_static(CodeGen *g, bool is_static) {
+    g->is_static = is_static;
+}
+
+void codegen_set_strip(CodeGen *g, bool strip) {
+    g->strip_debug_symbols = strip;
+}
+
 static void add_node_error(CodeGen *g, AstNode *node, Buf *msg) {
     g->errors.add_one();
     ErrorMsg *last_msg = &g->errors.last();
@@ -352,7 +368,8 @@ void semantic_analyze(CodeGen *g) {
     char *native_cpu = LLVMZigGetHostCPUName();
     char *native_features = LLVMZigGetNativeFeatures();
 
-    LLVMCodeGenOptLevel opt_level = LLVMCodeGenLevelNone;
+    LLVMCodeGenOptLevel opt_level = (g->build_type == CodeGenBuildTypeDebug) ?
+        LLVMCodeGenLevelNone : LLVMCodeGenLevelAggressive;
 
     LLVMRelocMode reloc_mode = g->is_static ? LLVMRelocStatic : LLVMRelocPIC;
 
@@ -522,12 +539,13 @@ static llvm::DISubroutineType *create_di_function_type(CodeGen *g, AstNodeFnProt
 
 void code_gen(CodeGen *g) {
     Buf *producer = buf_sprintf("zig %s", ZIG_VERSION_STRING);
-    bool is_optimized = false;
+    bool is_optimized = g->build_type == CodeGenBuildTypeRelease;
     const char *flags = "";
     unsigned runtime_version = 0;
     g->compile_unit = g->dbuilder->createCompileUnit(llvm::dwarf::DW_LANG_C99,
             buf_ptr(&g->in_file), buf_ptr(&g->in_dir),
-            buf_ptr(producer), is_optimized, flags, runtime_version);
+            buf_ptr(producer), is_optimized, flags, runtime_version,
+            "", llvm::DIBuilder::FullDebug, 0, !g->strip_debug_symbols);
 
     g->block_scopes.append(g->compile_unit);
 
@@ -615,6 +633,9 @@ void code_gen_link(CodeGen *g, const char *out_file) {
     }
 
     ZigList<const char *> args = {0};
+    if (g->is_static) {
+        args.append("-static");
+    }
     args.append("-o");
     args.append(out_file);
     args.append((const char *)buf_ptr(&out_file_o));

src/codegen.hpp

@@ -21,7 +21,15 @@ struct ErrorMsg {
 };
 
 
-CodeGen *create_codegen(AstNode *root, bool is_static, Buf *in_file);
+CodeGen *create_codegen(AstNode *root, Buf *in_file);
+
+enum CodeGenBuildType {
+    CodeGenBuildTypeDebug,
+    CodeGenBuildTypeRelease,
+};
+void codegen_set_build_type(CodeGen *codegen, CodeGenBuildType build_type);
+void codegen_set_is_static(CodeGen *codegen, bool is_static);
+void codegen_set_strip(CodeGen *codegen, bool strip);
 
 void semantic_analyze(CodeGen *g);
 

src/main.cpp

@@ -33,6 +33,9 @@ static int usage(const char *arg0) {
         "  --output       output file\n"
         "  --version      print version number and exit\n"
         "  -Ipath         add path to header include path\n"
+        "  --release      build with optimizations on\n"
+        "  --strip        exclude debug symbols\n"
+        "  --static       build a static executable\n"
     , arg0);
     return EXIT_FAILURE;
 }
@@ -55,7 +58,9 @@ static Buf *fetch_file(FILE *f) {
     return buf;
 }
 
-static int build(const char *arg0, const char *in_file, const char *out_file, ZigList<char *> *include_paths) {
+static int build(const char *arg0, const char *in_file, const char *out_file,
+        ZigList<char *> *include_paths, bool release, bool strip, bool is_static)
+{
     static char cur_dir[1024];
 
     if (!in_file || !out_file)
@@ -91,7 +96,10 @@ static int build(const char *arg0, const char *in_file, const char *out_file, Zi
 
     fprintf(stderr, "\nSemantic Analysis:\n");
     fprintf(stderr, "--------------------\n");
-    CodeGen *codegen = create_codegen(root, false, buf_create_from_str(in_file));
+    CodeGen *codegen = create_codegen(root, buf_create_from_str(in_file));
+    codegen_set_build_type(codegen, release ? CodeGenBuildTypeRelease : CodeGenBuildTypeDebug);
+    codegen_set_strip(codegen, strip);
+    codegen_set_is_static(codegen, is_static);
     semantic_analyze(codegen);
     ZigList<ErrorMsg> *errors = codegen_error_messages(codegen);
     if (errors->length == 0) {
@@ -128,6 +136,9 @@ int main(int argc, char **argv) {
     char *in_file = NULL;
     char *out_file = NULL;
     ZigList<char *> include_paths = {0};
+    bool release = false;
+    bool strip = false;
+    bool is_static = false;
 
     Cmd cmd = CmdNone;
     for (int i = 1; i < argc; i += 1) {
@@ -136,6 +147,12 @@ int main(int argc, char **argv) {
             if (strcmp(arg, "--version") == 0) {
                 printf("%s\n", ZIG_VERSION_STRING);
                 return EXIT_SUCCESS;
+            } else if (strcmp(arg, "--release") == 0) {
+                release = true;
+            } else if (strcmp(arg, "--strip") == 0) {
+                strip = true;
+            } else if (strcmp(arg, "--static") == 0) {
+                is_static = true;
             } else if (i + 1 >= argc) {
                 return usage(arg0);
             } else {
@@ -174,7 +191,7 @@ int main(int argc, char **argv) {
         case CmdNone:
             return usage(arg0);
         case CmdBuild:
-            return build(arg0, in_file, out_file, &include_paths);
+            return build(arg0, in_file, out_file, &include_paths, release, strip, is_static);
     }
 
     zig_unreachable();