feat: basic support for compiling source to object files

added cwalk to handle paths cross-platform

exposed TCC function to compile to file

.gitignore

@@ -1,4 +1,11 @@
 cjit
 *.o
-src/embed*
+src/assets.*
+src/embed_*
 .build_done*
+dl
+cjit.res
+cjit.rc
+cjit_source
+pristine
+cjit-demo*

REUSE.toml

@@ -9,6 +9,18 @@ precedence = "aggregate"
 SPDX-FileCopyrightText = "2024 Dyne.org foundation"
 SPDX-License-Identifier = "GPL-3.0-or-later"
 
+[[annotations]]
+path = "src/cwalk.*"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2024 Leonard Iklé"
+SPDX-License-Identifier = "MIT"
+
+[[annotations]]
+path = "src/array.*"
+precedence = "aggregate"
+SPDX-FileCopyrightText = "2015-2020 Sun Dro (s.kalatoz@gmail.com)"
+SPDX-License-Identifier = "MIT"
+
 [[annotations]]
 path = [".*", ".github/**"]
 precedence = "aggregate"
@@ -30,25 +42,25 @@ SPDX-License-Identifier = "MIT"
 [[annotations]]
 path = "examples/tinyc.games/res/PixelatedEleganceRegular.ttf"
 precedence = "aggregate"
-SPDX-FileCopyrightText = " 2024 GGBotNet"
+SPDX-FileCopyrightText = "2024 GGBotNet"
 SPDX-License-Identifier = "MIT-0"
 
 [[annotations]]
 path = "test/dmon.h"
 precedence = "aggregate"
-SPDX-FileCopyrightText = " 2019-2023 Sepehr Taghdisian"
+SPDX-FileCopyrightText = "2019-2023 Sepehr Taghdisian"
 SPDX-License-Identifier = "BSD-2-Clause"
 
 [[annotations]]
 path = "assets/stb/**"
 precedence = "aggregate"
-SPDX-FileCopyrightText = " 2009-2021 Sean Barrett"
+SPDX-FileCopyrightText = "2009-2021 Sean Barrett"
 SPDX-License-Identifier = "MIT-0"
 
 [[annotations]]
 path = "assets/win32ports/**"
 precedence = "aggregate"
-SPDX-FileCopyrightText = " 2019 win32ports"
+SPDX-FileCopyrightText = "2019 win32ports"
 SPDX-License-Identifier = "MIT-0"
 
 [[annotations]]

build/init.mk

@@ -17,7 +17,7 @@ cflags := ${CFLAGS} ${cflags_includes}
 
 SOURCES := src/file.o src/cjit.o \
            src/main.o src/assets.o \
-           src/repl.o \
+           src/cwalk.o src/repl.o \
            src/muntar.o src/tinflate.o src/tinfgzip.o \
            src/embed_libtcc1.a.o src/embed_include.o
 #src/embed_source.o

src/cjit.c

@@ -18,18 +18,16 @@
  */
 
 #include <cjit.h>
+#include <libtcc.h>
+#include <cwalk.h>
 
 #include <stdlib.h>
 #include <stdio.h>
 #include <stdarg.h>
 #include <string.h>
 #include <stdbool.h>
 #include <errno.h>
-#include <ctype.h>
-#include <unistd.h>
 
-#include <ketopt.h>
-#include <muntar.h>
 
 #define MAX_PATH 260 // rather short paths
 #define MAX_STRING 20480 // max 20KiB strings
@@ -130,8 +128,16 @@ CJITState* cjit_new() {
 	}
 	// error handler callback for TCC
 	tcc_set_error_func(cjit->TCC, stderr, cjit_tcc_handle_error);
+	return(cjit);
+}
+
+bool cjit_setup(CJITState *cjit) {
 	// set output in memory for just in time execution
-	tcc_set_output_type(cjit->TCC, TCC_OUTPUT_MEMORY);
+
+	tcc_set_output_type(cjit->TCC,
+			    cjit->tcc_output?
+			    cjit->tcc_output:
+			    TCC_OUTPUT_MEMORY);
 #if defined(LIBC_MUSL)
 	tcc_add_libc_symbols(cjit->TCC);
 #endif
@@ -184,8 +190,33 @@ CJITState* cjit_new() {
 		free(sdkpath);
 	}
 #endif
+	return(true);
+}
 
-	return(cjit);
+int cjit_compile_obj(CJITState *cjit, const char *_path) {
+	char *restrict tmp;
+	const char *basename;
+	char *ext;
+	size_t len;
+	cwk_path_get_basename((char*)_path, &basename, &len);
+	tmp = malloc(len+2);
+	strncpy(tmp,basename,len+1);
+	// _err("basename: %s",tmp);
+	if( !cwk_path_get_extension(tmp,(const char**)&ext,&len) ) {
+		_err("Filename has no extension: %s",basename);
+		return 1;
+	}
+	// _err("extension: %s",ext);
+	if( *(ext+1) != 'c' ) {
+		_err("Filename has wrong extension: %s",ext);
+		return 1;
+	}
+	strcpy(ext,".o");
+	tcc_add_file(cjit->TCC, _path);
+	_err("Compiling: %s -> %s",_path,tmp);
+	tcc_output_file(cjit->TCC,tmp);
+	free(tmp);
+	return 0;
 }
 
 int cjit_exec(CJITState *cjit, int argc, char **argv) {
@@ -263,6 +294,7 @@ void cjit_free(CJITState *cjit) {
 	if(cjit->tmpdir) free(cjit->tmpdir);
 	if(cjit->write_pid) free(cjit->write_pid);
 	if(cjit->entry) free(cjit->entry);
+	if(cjit->output_filename) free(cjit->output_filename);
 	if(cjit->TCC) tcc_delete(cjit->TCC);
 	free(cjit);
 }

src/cjit.h

@@ -33,11 +33,21 @@ struct CJITState {
 	bool live; // live coding mode
 	bool quiet; // print less to stderr
 	bool fresh; // tempdir is freshly created and needs to be populated
+	int tcc_output; //
+	// #define TCC_OUTPUT_MEMORY   1 /* output will be run in memory */
+	// #define TCC_OUTPUT_EXE      2 /* executable file */
+	// #define TCC_OUTPUT_DLL      4 /* dynamic library */
+	// #define TCC_OUTPUT_OBJ      3 /* object file */
+	// #define TCC_OUTPUT_PREPROCESS 5 /* only preprocess */
+	char *output_filename; // output in case of compilation mode
+
 };
 typedef struct CJITState CJITState;
 
 extern CJITState* cjit_new();
 
+int cjit_compile_obj(CJITState *cjit, const char *_path);
+
 extern int cjit_exec(CJITState *cjit, int argc, char **argv);
 
 extern void cjit_free(CJITState *CJIT);