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args.h
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#ifndef ARGS_H
#define ARGS_H
#include "compiler.h"
#include "util.h"
#include <stdbool.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
enum arg_ty {
// e.g `-O3`
ARG_TY_BOOL,
// e.g `-arch x86_64`
ARG_TY_OPTION,
// e.g `-Lall`
ARG_TY_FLAGS,
// e.g `-o foo`
ARG_TY_STRING,
// e.g `-I foo -I ../bar`
ARG_TY_STRING_LIST,
};
struct arg_string_list {
size_t num_values;
char **values;
};
typedef bool (*try_parse_arg)(const char *, int *);
typedef const char *(*string_arg)(int);
typedef void (*values_arg)(const char ***, size_t *);
struct arg {
enum arg_ty ty;
const char *name;
const char *description;
const char *short_name;
const char *long_name;
try_parse_arg try_parse;
string_arg string;
values_arg values;
union {
bool *arg_bool;
int *arg_option;
int *arg_flags;
const char **arg_string;
struct arg_string_list *arg_string_list;
};
};
#define CODEGEN_FLAG_ENUM_LIST \
ENUM_FN(CODEGEN_FLAG_NONE, "none") \
ENUM_FN(CODEGEN_FLAG_MNEMONICS, "mnemonics")
#define OPTS_ENUM_LIST \
ENUM_FN(COMPILE_OPTS_LEVEL_0, "0") \
ENUM_FN(COMPILE_OPTS_LEVEL_1, "1") \
ENUM_FN(COMPILE_OPTS_LEVEL_2, "2") \
ENUM_FN(COMPILE_OPTS_LEVEL_3, "3")
#define LOG_ENUM_LIST \
ENUM_FN(COMPILE_LOG_FLAGS_NONE, "none") \
ENUM_FN(COMPILE_LOG_FLAGS_ARGS, "args") \
ENUM_FN(COMPILE_LOG_FLAGS_PREPROC, "preproc") \
ENUM_FN(COMPILE_LOG_FLAGS_PARSE, "parse") \
ENUM_FN(COMPILE_LOG_FLAGS_TYPECHK, "typechk") \
ENUM_FN(COMPILE_LOG_FLAGS_IR, "ir") \
ENUM_FN(COMPILE_LOG_FLAGS_INLINE, "inline") \
ENUM_FN(COMPILE_LOG_FLAGS_LOWER_ABI, "lower_abi") \
ENUM_FN(COMPILE_LOG_FLAGS_OPTS, "opts") \
ENUM_FN(COMPILE_LOG_FLAGS_LOWER, "lower") \
ENUM_FN(COMPILE_LOG_FLAGS_REGALLOC, "regalloc") \
ENUM_FN(COMPILE_LOG_FLAGS_ELIM_PHI, "elim_phi") \
ENUM_FN(COMPILE_LOG_FLAGS_CODEGEN_PREPARE, "codegen_prepare") \
ENUM_FN(COMPILE_LOG_FLAGS_CODEGEN, "codegen") \
ENUM_FN(COMPILE_LOG_FLAGS_EMIT, "emit") \
ENUM_FN(COMPILE_LOG_FLAGS_BUILD_OBJECT, "build_object") \
ENUM_FN(COMPILE_LOG_FLAGS_ALL, "all")
#define ARCH_ENUM_LIST \
ENUM_FN(COMPILE_ARCH_X86_64, "x86_64") \
ENUM_FN(COMPILE_ARCH_ARM64, "arm64") \
ENUM_FN(COMPILE_ARCH_RV32I, "rv32i") \
ENUM_FN(COMPILE_ARCH_EEP, "eep")
#define TARGET_ENUM_LIST \
ENUM_FN(COMPILE_TARGET_MACOS_ARM64, "aarch64-apple-darwin") \
ENUM_FN(COMPILE_TARGET_MACOS_X86_64, "x86_64-apple-darwin") \
ENUM_FN(COMPILE_TARGET_LINUX_ARM64, "aarch64-linux-gnu") \
ENUM_FN(COMPILE_TARGET_LINUX_X86_64, "x86_64-linux-gnu") \
ENUM_FN(COMPILE_TARGET_EEP, "eep-unknown-unknown") \
ENUM_FN(COMPILE_TARGET_LINUX_RV32I, "rv32i-unknown-elf")
#define C_STANDARD_ENUM_LIST \
ENUM_FN(COMPILE_C_STANDARD_C11, "c11") \
ENUM_FN(COMPILE_C_STANDARD_C17, "c17") \
ENUM_FN(COMPILE_C_STANDARD_C23, "c23") \
ENUM_FN(COMPILE_C_STANDARD_C2Y, "c2y")
#define LANGUAGE_ENUM_LIST \
ENUM_FN(COMPILE_LANGUAGE_C, "c") \
ENUM_FN(COMPILE_LANGUAGE_C_HEADER, "c-header") \
ENUM_FN(COMPILE_LANGUAGE_CPP_OUTPUT, "cpp-output") \
ENUM_FN(COMPILE_LANGUAGE_OBJECT, "object")
#define ENUM_FN(enum_value, str_value) \
if (strcmp(str, str_value) == 0) { \
*value = enum_value; \
return true; \
}
#define PARSE_FN(name, enum_name) \
inline static bool parse_##name(const char *str, int *value) { \
enum_name##_ENUM_LIST; \
return false; \
}
#define STRING_FN(name, enum_name, default) \
inline static const char *string_##name(int value) { \
enum_name##_ENUM_LIST; \
return default; \
}
#define VALUES_FN(name, enum_name) \
inline static void values_##name(const char ***values, size_t *num_values) { \
static const char *enum_values[] = {enum_name##_ENUM_LIST}; \
\
*values = enum_values; \
*num_values = ARR_LENGTH(enum_values); \
}
inline static bool parse_log_level(const char *str, int *value) {
LOG_ENUM_LIST;
if (strcmp(str, "ir.all") == 0) {
*value =
COMPILE_LOG_FLAGS_IR | COMPILE_LOG_FLAGS_INLINE |
COMPILE_LOG_FLAGS_LOWER_ABI | COMPILE_LOG_FLAGS_OPTS |
COMPILE_LOG_FLAGS_LOWER /* temp disable regalloc bc it doesn't respect
--log-sym | COMPILE_LOG_FLAGS_REGALLOC */
| COMPILE_LOG_FLAGS_ELIM_PHI | COMPILE_LOG_FLAGS_CODEGEN_PREPARE;
return true;
}
return false;
}
PARSE_FN(codegen_flags, CODEGEN_FLAG)
PARSE_FN(opts_level, OPTS)
PARSE_FN(arch, ARCH)
PARSE_FN(target, TARGET)
inline static bool parse_c_standard(const char *str, int *value) {
C_STANDARD_ENUM_LIST;
if (strcmp(str, "c2x") == 0) {
*value = COMPILE_C_STANDARD_C23;
return true;
};
return false;
}
PARSE_FN(language, LANGUAGE)
#undef ENUM_FN
#define ENUM_FN(enum_value, str_value) \
if (value == enum_value) { \
return str_value; \
}
STRING_FN(codegen_flags, CODEGEN_FLAG, "all")
STRING_FN(opts_level, OPTS, "(invalid)")
STRING_FN(arch, ARCH, "(invalid)")
STRING_FN(target, TARGET, "(invalid)")
STRING_FN(c_standard, C_STANDARD, "(invalid)")
STRING_FN(language, LANGUAGE, "(invalid)")
STRING_FN(log_level, LOG, "all")
#undef ENUM_FN
#define ENUM_FN(enum_value, str_value) str_value,
inline static void values_log_level(const char ***values, size_t *num_values) {
static const char *enum_values[] = {LOG_ENUM_LIST "ir.all"};
*values = enum_values;
*num_values = ARR_LENGTH(enum_values);
}
VALUES_FN(codegen_flags, CODEGEN_FLAG)
VALUES_FN(opts_level, OPTS)
VALUES_FN(arch, ARCH)
VALUES_FN(target, TARGET)
VALUES_FN(c_standard, C_STANDARD)
VALUES_FN(language, LANGUAGE)
#undef ENUM_FN
#define ARG_BOOL(name, sh, lo, desc) \
ARG_OPT(BOOL, bool, name, sh, lo, desc, NULL, NULL, NULL)
#define ARG_OPTION(ty, name, sh, lo, fn, desc) \
ARG_OPT(OPTION, ty, name, sh, lo, desc, parse_##fn, string_##fn, values_##fn)
#define ARG_FLAGS(ty, name, sh, lo, fn, desc) \
ARG_OPT(FLAGS, ty, name, sh, lo, desc, parse_##fn, string_##fn, values_##fn)
#define ARG_STRING(name, sh, lo, desc) \
ARG_OPT(STRING, const char *, name, sh, lo, desc, NULL, NULL, NULL)
#define ARG_STRING_LIST(name, sh, lo, desc) \
ARG_OPT(STRING_LIST, struct arg_string_list, name, sh, lo, desc, NULL, NULL, \
NULL)
/* ------------------------- Preprocessor options ------------------------- */
#define PREPROC_OPT_LIST \
ARG_BOOL(preprocess, "-E", "--preprocess", \
"Only run the preprocessor. If '-o' is not provided, this will " \
"output to stdout") \
\
ARG_BOOL(no_line_commands, "-P", "--no-line-commands", \
"Disable line markers in -E/--preprocess") \
\
ARG_STRING_LIST(define_macros, "-D", "--define-macro", \
"Define `arg` as 1, or `arg=value` as `value`") \
\
ARG_STRING(isys_root, "", "-isysroot", \
"Root directory for `#include <header>` directives") \
\
ARG_STRING_LIST(sys_include_paths, "", "-isystem", \
"Directories to search for `#include <header>` directives") \
\
ARG_STRING_LIST( \
include_paths, "-I", "", \
"Directories to search for `#include \" header\"` directives")
/* ------------------------- Debug-only options ------------------------- */
#define DEBUG_OPT_LIST \
ARG_FLAGS(enum compile_log_flags, log_level, "-L", "--log", log_level, \
"[DEBUG] Log level flags") \
\
ARG_STRING_LIST(log_symbols, "", "--log-sym", \
"[DEBUG] Symbols to log (default: all)") \
\
ARG_STRING(timestamp, "", "-tm", \
"[DEBUG] Fixed timestamp to use for __DATE__ and __TIME__")
/* ------------------------- Output options ------------------------- */
#define OUTPUT_OPT_LIST \
ARG_BOOL( \
assembly, "-S", "--assemble", \
"Only run preprocessor and compiler; output assembly without linking") \
\
ARG_BOOL(object, "-c", "--compile", \
"Only run preprocessor and compiler; output object file without " \
"linking") \
\
ARG_STRING(output, "-o", "", "Output file")
#define INPUT_OPT_LIST \
ARG_OPTION(enum compile_c_standard, c_standard, "", "-std", c_standard, \
"C standard to use") \
\
ARG_OPTION(enum compile_language, language, "-x", "", language, "The ")
/* ------------------------- Target options ------------------------- */
#define TARGET_OPT_LIST \
ARG_OPTION(enum compile_arch, arch, "", "-arch", arch, \
"Architecture to build for") \
\
ARG_OPTION(enum compile_target, target, "", "-target", target, \
"Target triple (arch-vendor-os)")
/* ------------------------- Codegen options ------------------------- */
#define CODEGEN_OPT_LIST \
ARG_OPTION(enum compile_opts_level, opts, "-O", "--opts", opts_level, \
"Optimisation level 0..3") \
\
ARG_FLAGS(enum codegen_flags, codegen_flags, "-C", "--codegen", \
codegen_flags, "Codegen flags") \
\
ARG_BOOL(use_graphcol_regalloc, "", "--use-graphcol", \
"[EXPERIMENTAL] Use " \
"graph-colouring " \
"based regalloc") \
\
/* FIXME: ignored */ \
ARG_BOOL(debug, "-g", "", "Debug info (currently does nothing)")
/* ------------------------- Feature options ------------------------- */
#define FEATURE_OPT_LIST \
ARG_BOOL(lex_only, "", "-flex-only", \
"Only run preprocessor and lexer stages") \
\
ARG_BOOL(parse_only, "", "-fparse-only", \
"Only run preprocessor and syntax stages") \
\
ARG_BOOL(syntax_only, "", "-fsyntax-only", \
"Only run preprocessor, syntax, and typechecking stages") \
\
ARG_STRING(diagnostics_sink, "", "-fdiagnostics-sink", \
"File to output diagnostics too")
/* ------------------------- Warning options ------------------------- */
#define WARNING_OPT_LIST \
/* FIXME: Not used */ \
ARG_BOOL(warnings_as_error, "", "-Werror", "Error on warnings") \
ARG_STRING_LIST(warnings, "-W", "", "Warning settings") \
\
ARG_BOOL(no_warnings, "-w", "--no-warnings", "Disable all warnings")
/* ------------------------- Link options ------------------------- */
#define LINK_OPT_LIST \
/* FIXME: these are currently ignored */ \
ARG_STRING_LIST(linker_args, "", "-Wl,", "Arguments to pass to the linker") \
\
ARG_STRING_LIST(link_libraries, "-l", "", "Libraries to link against")
#define ARG_OPT_LIST \
PREPROC_OPT_LIST \
\
INPUT_OPT_LIST \
\
WARNING_OPT_LIST \
\
FEATURE_OPT_LIST \
\
TARGET_OPT_LIST \
\
CODEGEN_OPT_LIST \
\
LINK_OPT_LIST \
\
OUTPUT_OPT_LIST \
\
ARG_BOOL(verbose, "-v", "--verbose", "Show all commands executed") \
\
ARG_BOOL(version, "-V", "--version", "Print version") \
\
ARG_BOOL(profile, "", "--profile", "Run profiler") \
\
ARG_STRING(profile_json, "", "--profile-json", \
"Run profiler and output JSON to file") \
\
DEBUG_OPT_LIST
struct parsed_args {
int argc;
char **argv;
char *jcc;
enum jcc_driver driver;
#define ARG_OPT(_0, field_ty, name, ...) field_ty name;
ARG_OPT_LIST
#undef ARG_OPT
size_t num_values;
const char **values;
};
void debug_print_parsed_args(FILE *file, const struct parsed_args *args);
enum parse_args_result {
PARSE_ARGS_RESULT_SUCCESS,
PARSE_ARGS_RESULT_HELP,
PARSE_ARGS_RESULT_FAIL,
};
enum parse_args_result parse_args(int argc, char **argv,
struct parsed_args *parsed);
void free_args(struct parsed_args *args);
#endif