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82c3facb6538b3dba274057c40c3b4c29916a732
c3c/src/build/build_options.c
Christoffer Lerno 82c3facb65 --obj, --emit-stdlib, --strip-unused
2023-06-09 09:37:07 +02:00

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// Copyright (c) 2019 Christoffer Lerno. All rights reserved.
// Use of this source code is governed by the GNU LGPLv3.0 license
// a copy of which can be found in the LICENSE file.
#include "build_options.h"
#include <stdio.h>
#include <stdlib.h>
#include <assert.h>
#ifndef _MSC_VER
#include <unistd.h>
#endif
#include <stdbool.h>
#include <string.h>
#include <utils/lib.h>
#include "../utils/whereami.h"
extern int llvm_version_major;
static int arg_index;
static int arg_count;
static const char** args;
static const char* current_arg;
extern const char* llvm_version;
extern const char* llvm_target;
char *arch_os_target[ARCH_OS_TARGET_LAST + 1] = {
[ELF_AARCH64] = "elf-aarch64",
[ELF_RISCV32] = "elf-riscv32",
[ELF_RISCV64] = "elf-riscv64",
[ELF_X86] = "elf-x86",
[ELF_X64] = "elf-x64",
[FREEBSD_X86] = "freebsd-x86",
[FREEBSD_X64] = "freebsd-x64",
[LINUX_AARCH64] = "linux-aarch64",
[LINUX_RISCV32] = "linux-riscv32",
[LINUX_RISCV64] = "linux-riscv64",
[LINUX_X86] = "linux-x86",
[LINUX_X64] = "linux-x64",
[MACOS_AARCH64] = "macos-aarch64",
[MACOS_X64] = "macos-x64",
[MCU_X86] = "mcu-x86",
[MINGW_X64] = "mingw-x64",
[NETBSD_X86] = "netbsd-x86",
[NETBSD_X64] = "netbsd-x64",
[OPENBSD_X86] = "openbsd-x86",
[OPENBSD_X64] = "openbsd-x64",
[WASM32] = "wasm32",
[WASM64] = "wasm64",
[WINDOWS_AARCH64] = "windows-aarch64",
[WINDOWS_X64] = "windows-x64",
};
#define EOUTPUT(string, ...) fprintf(stderr, string "\n", ##__VA_ARGS__)
#define OUTPUT(string, ...) fprintf(stdout, string "\n", ##__VA_ARGS__)
#define FAIL_WITH_ERR(string, ...) do { fprintf(stderr, "Error: " string "\n\n", ##__VA_ARGS__); usage(); exit_compiler(EXIT_FAILURE); } while (0)
static void usage(void)
{
OUTPUT("Usage: %s [<options>] <command> [<args>]", args[0]);
OUTPUT("");
OUTPUT("Commands:");
OUTPUT("");
OUTPUT(" compile <file1> [<file2> ...] Compile files without a project into an executable.");
OUTPUT(" init <project name> Initialize a new project structure.");
OUTPUT(" build [<target>] Build the target in the current project.");
OUTPUT(" test Run the unit tests in the current project.");
OUTPUT(" clean Clean all build files.");
OUTPUT(" run [<target>] Run (and build if needed) the target in the current project.");
OUTPUT(" dist [<target>] Clean and build a target for distribution.");
OUTPUT(" directives [<target>] Generate documentation for the target.");
OUTPUT(" bench [<target>] Benchmark a target.");
OUTPUT(" clean-run [<target>] Clean, then run the target.");
OUTPUT(" compile-run <file1> [<file2> ...] Compile files then immediately run the result.");
OUTPUT(" compile-only <file1> [<file2> ...] Compile files but do not perform linking.");
OUTPUT(" compile-test <file1> [<file2> ...] Compile files into an executable and run unit tests.");
OUTPUT(" static-lib <file1> [<file2> ...] Compile files without a project into a static library.");
OUTPUT(" dynamic-lib <file1> [<file2> ...] Compile files without a project into a dynamic library.");
OUTPUT(" headers <file1> [<file2> ...] Analyse files and generate C headers for public methods.");
OUTPUT(" vendor-fetch <library> ... Fetches one or more libraries from the vendor collection.");
OUTPUT("");
OUTPUT("Options:");
OUTPUT(" --tb - Use Tilde Backend for compilation.");
OUTPUT(" --stdlib <dir> - Use this directory as the C3 standard library path.");
OUTPUT(" --nostdlib - Do not include the standard library.");
OUTPUT(" --nolibc - Do not implicitly link libc nor any associated files.");
OUTPUT(" --no-entry - Do not generate (or require) a main function.");
OUTPUT(" --libdir <dir> - Add this directory to the C3 library search paths.");
OUTPUT(" --lib <name> - Add this library to the compilation.");
OUTPUT(" --path <dir> - Use this as the base directory for the current command.");
OUTPUT(" --template <template> - Select template for 'init': \"exe\", \"static-lib\", \"dynamic-lib\" or a path.");
OUTPUT(" --about - Prints a short description of C3.");
OUTPUT(" --symtab <value> - Sets the preferred symtab size.");
OUTPUT(" -V --version - Print version information.");
OUTPUT(" -E - Lex only.");
OUTPUT(" -P - Only parse and output the AST as S-expressions.");
OUTPUT(" -C - Only lex, parse and check.");
OUTPUT(" - - Read code from standard in.");
OUTPUT(" -o <file> - Write output to <file>.");
OUTPUT(" -O0 - Optimizations off.");
OUTPUT(" -O1 - Simple optimizations only.");
OUTPUT(" -O2 - Default optimization level.");
OUTPUT(" -O3 - Aggressive optimization.");
OUTPUT(" -Os - Optimize for size.");
OUTPUT(" -Oz - Optimize for tiny size.");
OUTPUT(" -O0+ - No optimization, single module.");
OUTPUT(" -O1+ - Simple optimizations, single module.");
OUTPUT(" -O2+ - Default optimization level, single module");
OUTPUT(" -O3+ - Aggressive optimization, single module.");
OUTPUT(" -Os+ - Optimize for size, single module.");
OUTPUT(" -Oz+ - Optimize for tiny size, single module.");
OUTPUT(" --build-dir <dir> - Override build output directory.");
OUTPUT(" --obj-out <dir> - Override object file output directory.");
OUTPUT(" --llvm-out <dir> - Override llvm output directory for '--emit-llvm'.");
OUTPUT(" --emit-llvm - Emit LLVM IR as a .ll file per module.");
OUTPUT(" --asm-out <dir> - Override asm output directory for '--emit-asm'.");
OUTPUT(" --emit-asm - Emit asm as a .s file per module.");
OUTPUT(" --obj - Emit object files. (Enabled by default)");
OUTPUT(" --no-obj - Do not output object files, this is only valid for `compile-only`.");
OUTPUT(" --emit-stdlib - Output files for the standard library. (Enabled by default)");
OUTPUT(" --no-emit-stdlib - Do not output object files (nor asm or ir) for the standard library.");
OUTPUT(" --target <target> - Compile for a particular architecture + OS target.");
OUTPUT(" --threads <number> - Set the number of threads to use for compilation.");
OUTPUT(" --safe - Set mode to 'safe', generating runtime traps on overflows and contract violations.");
OUTPUT(" --fast - Set mode to 'fast', removes runtime traps.");
OUTPUT("");
OUTPUT(" -g - Emit full debug info.");
OUTPUT(" -g0 - Emit no debug info.");
OUTPUT(" -gline-tables-only - Only emit line tables for debugging.");
OUTPUT("");
OUTPUT("");
OUTPUT(" -l <library> - Link with the library provided.");
OUTPUT(" -L <library dir> - Append the directory to the linker search paths.");
OUTPUT(" -z <argument> - Send the <argument> as a parameter to the linker.");
OUTPUT(" --forcelinker - Force built in linker usage when doing non-cross linking.");
OUTPUT("");
OUTPUT(" --reloc=<option> - Relocation model: none, pic, PIC, pie, PIE.");
OUTPUT(" --x86cpu=<option> - Set general level of x64 cpu: baseline, ssse3, sse4, avx1, avx2-v1, avx2-v2 (Skylake/Zen1+), avx512 (Icelake/Zen4+), native.");
OUTPUT(" --x86vec=<option> - Set max type of vector use: none, mmx, sse, avx, avx512, native.");
OUTPUT(" --riscvfloat=<option> - Set type of RISC-V float support: none, float, double");
OUTPUT(" --memory-env=<option> - Set the memory environment: normal, small, tiny, none.");
OUTPUT(" --strip-unused - Strip unused code and globals from the output. (Enabled by default)");
OUTPUT(" --no-strip-unused - Do not strip unused code and globals from the output.");
OUTPUT("");
OUTPUT(" --debug-stats - Print debug statistics.");
#ifndef NDEBUG
OUTPUT(" --debug-log - Print debug logging to stdout.");
#endif
OUTPUT("");
OUTPUT(" --benchmarking - Run builtin benchmarks.");
OUTPUT(" --testing - Run built-in tests.");
OUTPUT("");
OUTPUT(" --list-attributes - List all attributes.");
OUTPUT(" --list-builtins - List all builtins.");
OUTPUT(" --list-keywords - List all keywords.");
OUTPUT(" --list-operators - List all operators.");
OUTPUT(" --list-precedence - List operator precedence order.");
OUTPUT(" --list-project-properties - List all available keys used in project.json files.");
OUTPUT(" --list-targets - List all architectures the compiler supports.");
OUTPUT(" --list-type-properties - List all type properties.");
OUTPUT("");
OUTPUT(" --print-output - Print the object files created to stdout.");
OUTPUT("");
OUTPUT(" --winsdk <dir> - Set the directory for Windows system library files for cross compilation.");
OUTPUT(" --wincrt=<option> - Windows CRT linking: none, static, dynamic (default).");
OUTPUT("");
OUTPUT(" --macossdk <dir> - Set the directory for the MacOS SDK for cross compilation.");
OUTPUT(" --macos-min-version <ver> - Set the minimum MacOS version to compile for.");
OUTPUT(" --macos-sdk-version <ver> - Set the MacOS SDK compiled for.");
OUTPUT("");
OUTPUT(" --linux-crt <dir> - Set the directory to use for finding crt1.o and related files.");
OUTPUT(" --linux-crtbegin <dir> - Set the directory to use for finding crtbegin.o and related files.");
}
static const char* check_dir(const char *path)
{
static char *original_path = NULL;
if (!original_path)
{
original_path = getcwd(NULL, 0);
}
if (!dir_change(path)) error_exit("The path \"%s\" does not point to a valid directory.", path);
if (!dir_change(original_path)) FAIL_WITH_ERR("Failed to change path to %s.", original_path);
return path;
}
static inline bool at_end()
{
return arg_index == arg_count - 1;
}
static inline const char* next_arg()
{
assert(!at_end());
current_arg = args[++arg_index];
return current_arg;
}
static inline bool next_is_opt()
{
return args[arg_index + 1][0] == '-';
}
static inline bool match_longopt(const char* name)
{
return strcmp(&current_arg[2], name) == 0;
}
static inline const char *match_argopt(const char* name)
{
size_t len = strlen(name);
if (memcmp(&current_arg[2], name, len) != 0) return false;
if (current_arg[2 + len] != '=') return false;
return &current_arg[2 + len + 1];
}
static inline bool match_shortopt(const char* name)
{
return strcmp(&current_arg[1], name) == 0;
}
void append_file(BuildOptions *build_options)
{
if (vec_size(build_options->files) == MAX_FILES)
{
fprintf(stderr, "Max %d files may be specified\n", MAX_FILES);
exit_compiler(EXIT_FAILURE);
}
vec_add(build_options->files, current_arg);
}
static bool arg_match(const char *candidate)
{
return strcmp(current_arg, candidate) == 0;
}
static void parse_optional_target(BuildOptions *options)
{
if (at_end() || next_is_opt())
{
options->target_select = NULL;
}
else
{
options->target_select = next_arg();
}
}
static void parse_command(BuildOptions *options)
{
if (arg_match("init"))
{
options->command = COMMAND_INIT;
if (at_end() || next_is_opt()) error_exit("Expected a project name after init");
options->project_name = next_arg();
return;
}
if (arg_match("utest"))
{
options->command = COMMAND_UNIT_TEST;
return;
}
if (arg_match("compile-test"))
{
options->command = COMMAND_COMPILE_TEST;
options->testing = true;
return;
}
if (arg_match("compile"))
{
options->command = COMMAND_COMPILE;
return;
}
if (arg_match("compile-only"))
{
options->command = COMMAND_COMPILE_ONLY;
return;
}
if (arg_match("headers"))
{
options->command = COMMAND_GENERATE_HEADERS;
return;
}
if (arg_match("static-lib"))
{
options->command = COMMAND_STATIC_LIB;
return;
}
if (arg_match("vendor-fetch"))
{
options->command = COMMAND_VENDOR_FETCH;
if (at_end() || next_is_opt()) error_exit("error: vendor-fetch needs at least one library.");
while (!at_end() && !next_is_opt())
{
const char *lib = next_arg();
vec_add(options->libraries_to_fetch, lib);
}
return;
}
if (arg_match("dynamic-lib"))
{
options->command = COMMAND_DYNAMIC_LIB;
return;
}
if (arg_match("build"))
{
options->command = COMMAND_BUILD;
parse_optional_target(options);
return;
}
if (arg_match("test"))
{
options->command = COMMAND_TEST;
options->testing = true;
return;
}
if (arg_match("run"))
{
options->command = COMMAND_RUN;
parse_optional_target(options);
return;
}
if (arg_match("compile-run"))
{
options->command = COMMAND_COMPILE_RUN;
return;
}
if (arg_match("clean-run"))
{
options->command = COMMAND_CLEAN_RUN;
parse_optional_target(options);
return;
}
if (arg_match("clean"))
{
options->command = COMMAND_CLEAN;
return;
}
if (arg_match("dist"))
{
options->command = COMMAND_CLEAN_RUN;
parse_optional_target(options);
return;
}
if (arg_match("directives"))
{
options->command = COMMAND_DOCS;
parse_optional_target(options);
return;
}
if (arg_match("bench"))
{
options->command = COMMAND_BENCH;
parse_optional_target(options);
return;
}
FAIL_WITH_ERR("Cannot process the unknown command \"%s\".", current_arg);
}
static void print_all_targets(void)
{
OUTPUT("Available targets:");
for (unsigned i = 1; i <= ARCH_OS_TARGET_LAST; i++)
{
OUTPUT(" %s", arch_os_target[i]);
}
}
static void print_version(void)
{
OUTPUT("C3 Compiler Version (pre-alpha): %s", COMPILER_VERSION);
OUTPUT("Installed directory: %s", find_executable_path());
OUTPUT("LLVM version: %s", llvm_version);
OUTPUT("LLVM default target: %s", llvm_target);
}
static void add_linker_arg(BuildOptions *options, const char *arg)
{
if (options->linker_arg_count == MAX_LIB_DIRS)
{
error_exit("Too many linker arguments are given, more than %d\n", MAX_LIB_DIRS);
}
options->linker_args[options->linker_arg_count++] = arg;
}
static int parse_multi_option(const char *start, unsigned count, const char** elements)
{
const char *arg = current_arg;
int select = str_findlist(start, count, elements);
if (select < 0) error_exit("error: %.*s invalid option '%s' given.", (int)(start - arg), start, arg);
return select;
}
static void parse_option(BuildOptions *options)
{
const char *argopt;
switch (current_arg[1])
{
case '\0':
options->read_stdin = true;
return;
case '?':
if (match_shortopt("?"))
{
usage();
exit_compiler(COMPILER_SUCCESS_EXIT);
}
break;
case 'V':
if (match_shortopt("V"))
{
print_version();
exit_compiler(-1000);
}
break;
case 'g':
if (match_shortopt("gline-tables-only"))
{
options->debug_info_override = DEBUG_INFO_LINE_TABLES;
FATAL_ERROR("Line tables only are currently not available");
}
if (match_shortopt("g") || match_shortopt("g1"))
{
options->debug_info_override = DEBUG_INFO_FULL;
return;
}
if (match_shortopt("g0"))
{
options->debug_info_override = DEBUG_INFO_NONE;
return;
}
FAIL_WITH_ERR("Unknown debug argument -%s.", &current_arg[1]);
case 'h':
break;
case 'z':
if (at_end()) error_exit("error: -z needs a value");
add_linker_arg(options, next_arg());
return;
case 'o':
if (at_end()) error_exit("error: -o needs a name");
options->output_name = next_arg();
return;
case 'O':
if (options->optimization_setting_override != OPT_SETTING_NOT_SET)
{
FAIL_WITH_ERR("Multiple optimization levels were set.");
}
if (match_shortopt("O0+"))
{
options->optimization_setting_override = OPT_SETTING_O0_PLUS;
}
else if (match_shortopt("O0"))
{
options->optimization_setting_override = OPT_SETTING_O0;
}
else if (match_shortopt("O1+"))
{
options->optimization_setting_override = OPT_SETTING_O1_PLUS;
}
else if (match_shortopt("O1"))
{
options->optimization_setting_override = OPT_SETTING_O1;
}
else if (match_shortopt("O2+"))
{
options->optimization_setting_override = OPT_SETTING_O2_PLUS;
}
else if (match_shortopt("O2"))
{
options->optimization_setting_override = OPT_SETTING_O2;
}
else if (match_shortopt("O3+"))
{
options->optimization_setting_override = OPT_SETTING_O3_PLUS;
}
else if (match_shortopt("O3"))
{
options->optimization_setting_override = OPT_SETTING_O3;
}
else if (match_shortopt("Os+"))
{
options->optimization_setting_override = OPT_SETTING_OSMALL_PLUS;
}
else if (match_shortopt("Os"))
{
options->optimization_setting_override = OPT_SETTING_OSMALL;
}
else if (match_shortopt("Oz+"))
{
options->optimization_setting_override = OPT_SETTING_OTINY_PLUS;
}
else if (match_shortopt("Oz"))
{
options->optimization_setting_override = OPT_SETTING_OTINY;
}
else
{
FAIL_WITH_ERR("Invalid optimization level.");
}
return;
case 'E':
if (options->compile_option != COMPILE_NORMAL)
{
FAIL_WITH_ERR("Illegal combination of compile options.");
}
options->compile_option = COMPILE_LEX_ONLY;
return;
case 'L':
if (at_end() || next_is_opt()) error_exit("error: -L needs a directory.");
options->linker_lib_dir[options->linker_lib_dir_count++] = check_dir(next_arg());
return;
case 'l':
if (at_end() || next_is_opt()) error_exit("error: -l needs a library name.");
options->linker_libs[options->linker_lib_count++] = next_arg();
return;
case 'P':
if (options->compile_option != COMPILE_NORMAL)
{
FAIL_WITH_ERR("Illegal combination of compile options.");
}
options->compile_option = COMPILE_LEX_PARSE_ONLY;
return;
case 'C':
if (options->compile_option != COMPILE_NORMAL)
{
FAIL_WITH_ERR("Illegal combination of compile options.");
}
options->compile_option = COMPILE_LEX_PARSE_CHECK_ONLY;
return;
case '-':
if (match_longopt("tb"))
{
options->backend = BACKEND_TB;
return;
}
if (match_longopt("symtab"))
{
if (at_end() || next_is_opt()) error_exit("error: --symtab needs a valid integer.");
const char *symtab_string = next_arg();
int symtab = atoi(symtab_string);
if (symtab < 1024) OUTPUT("Expected a valid positive integer >= 1024.");
options->symtab_size = next_highest_power_of_2(symtab);
return;
}
if (match_longopt("forcelinker"))
{
options->force_linker = true;
return;
}
if (match_longopt("version"))
{
print_version();
exit_compiler(COMPILER_SUCCESS_EXIT);
}
if (match_longopt("no-strip-unused"))
{
options->no_strip_unused = true;
return;
}
if (match_longopt("strip-unused"))
{
options->no_strip_unused = false;
return;
}
if ((argopt = match_argopt("x86vec")))
{
options->x86_vector_capability = (X86VectorCapability)parse_multi_option(argopt, 6, x86_vector_capability);
return;
}
if ((argopt = match_argopt("x86cpu")))
{
options->x86_cpu_set = (X86CpuSet)parse_multi_option(argopt, 8, x86_cpu_set);
return;
}
if ((argopt = match_argopt("riscvfloat")))
{
options->riscv_float_capability = (RiscvFloatCapability)parse_multi_option(argopt, 3, riscv_capability);
return;
}
if ((argopt = match_argopt("memory-env")))
{
options->memory_environment = (MemoryEnvironment )parse_multi_option(argopt, 4, memory_environment);
return;
}
if ((argopt = match_argopt("reloc")))
{
options->reloc_model = (RelocModel)parse_multi_option(argopt, 5, reloc_models);
return;
}
if (match_longopt("about"))
{
OUTPUT("The C3 Compiler");
OUTPUT("C3 is low level programming language based on C.");
exit_compiler(COMPILER_SUCCESS_EXIT);
}
if (match_longopt("no-obj"))
{
options->no_obj = true;
return;
}
if (match_longopt("obj"))
{
options->no_obj = false;
return;
}
if (match_longopt("no-emit-stdlib"))
{
options->no_emit_stdlib = true;
return;
}
if (match_longopt("emit-stdlib"))
{
options->no_emit_stdlib = false;
return;
}
if (match_longopt("debug-log"))
{
debug_log = true;
debug_stats = true;
return;
}
if (match_longopt("debug-stats"))
{
debug_stats = true;
return;
}
if (match_longopt("list-keywords"))
{
options->print_keywords = true;
options->command = COMMAND_PRINT_SYNTAX;
return;
}
if (match_longopt("list-attributes"))
{
options->print_attributes = true;
options->command = COMMAND_PRINT_SYNTAX;
return;
}
if (match_longopt("list-builtins"))
{
options->print_builtins = true;
options->command = COMMAND_PRINT_SYNTAX;
return;
}
if (match_longopt("list-type-properties"))
{
options->print_type_properties = true;
options->command = COMMAND_PRINT_SYNTAX;
return;
}
if (match_longopt("list-project-properties"))
{
options->print_project_properties = true;
options->command = COMMAND_PRINT_SYNTAX;
return;
}
if (match_longopt("list-operators"))
{
options->print_operators = true;
options->command = COMMAND_PRINT_SYNTAX;
return;
}
if (match_longopt("list-precedence"))
{
options->print_precedence = true;
options->command = COMMAND_PRINT_SYNTAX;
return;
}
if (match_longopt("threads"))
{
if (at_end() || next_is_opt()) error_exit("error: --threads needs a valid integer 1 or higher.");
const char *thread_string = next_arg();
int threads = atoi(thread_string);
if (threads < 1) OUTPUT("Expected a valid integer 1 or higher.");
if (threads > MAX_THREADS) OUTPUT("Cannot exceed %d threads.", MAX_THREADS);
options->build_threads = threads;
return;
}
if (match_longopt("target"))
{
if (at_end() || next_is_opt()) error_exit("error: --target needs a arch+os definition.");
const char *target = next_arg();
ArchOsTarget target_arch_os = arch_os_target_from_string(target);
if (target_arch_os != ARCH_OS_TARGET_DEFAULT)
{
options->arch_os_target_override = target_arch_os;
return;
}
OUTPUT("Available targets:");
EOUTPUT("Invalid target %s.", target);
EOUTPUT("These targets are supported:");
for (unsigned i = 1; i <= ARCH_OS_TARGET_LAST; i++)
{
EOUTPUT(" %s", arch_os_target[i]);
}
exit_compiler(EXIT_FAILURE);
}
if (match_longopt("list-targets"))
{
print_all_targets();
exit_compiler(COMPILER_SUCCESS_EXIT);
}
if (match_longopt("emit-llvm"))
{
options->emit_llvm = true;
return;
}
if (match_longopt("emit-asm"))
{
options->emit_asm = true;
return;
}
if (match_longopt("print-output"))
{
options->print_output = true;
return;
}
if (match_longopt("no-entry"))
{
options->no_entry = true;
return;
}
if (match_longopt("cc"))
{
if (at_end() || next_is_opt()) error_exit("error: --cc needs a compiler name.");
options->cc = next_arg();
return;
}
if (match_longopt("stdlib"))
{
if (at_end() || next_is_opt()) error_exit("error: --stdlib needs a directory.");
options->std_lib_dir = check_dir(next_arg());
options->no_stdlib = false;
return;
}
if (match_longopt("nostdlib"))
{
options->no_stdlib = true;
return;
}
if (match_longopt("nolibc"))
{
options->no_libc = true;
return;
}
if (match_longopt("panicfn"))
{
if (at_end() || next_is_opt()) error_exit("error: --panicfn needs a function name.");
options->panicfn = next_arg();
return;
}
if (match_longopt("macossdk"))
{
if (at_end() || next_is_opt()) error_exit("error: --macossdk needs a directory.");
options->macos.sdk = check_dir(next_arg());
return;
}
if (match_longopt("winsdk"))
{
if (at_end() || next_is_opt()) error_exit("error: --winsdk needs a directory.");
options->win.sdk = check_dir(next_arg());
return;
}
if ((argopt = match_argopt("wincrt")))
{
options->win.crt_linking = (WinCrtLinking)parse_multi_option(argopt, 3, wincrt_linking);
return;
}
if (match_longopt("macos-sdk-version"))
{
if (at_end() || next_is_opt()) error_exit("error: --macos-sdk-version needs a version.");
options->macos.sdk_version = next_arg();
return;
}
if (match_longopt("macos-min-version"))
{
if (at_end() || next_is_opt()) error_exit("error: --macos-min-version needs a version.");
options->macos.min_version = next_arg();
return;
}
if (match_longopt("build-dir"))
{
if (at_end() || next_is_opt()) error_exit("error: --build-dir needs a directory.");
options->build_dir = next_arg();
return;
}
if (match_longopt("obj-out"))
{
if (at_end() || next_is_opt()) error_exit("error: --obj-out needs a directory.");
options->obj_out = next_arg();
return;
}
if (match_longopt("llvm-out"))
{
if (at_end() || next_is_opt()) error_exit("error: --llvm-out needs a directory.");
options->llvm_out = next_arg();
return;
}
if (match_longopt("asm-out"))
{
if (at_end() || next_is_opt()) error_exit("error: --asm-out needs a directory.");
options->asm_out = next_arg();
return;
}
if (match_longopt("lib"))
{
if (at_end() || next_is_opt()) error_exit("error: --lib needs a name.");
const char *name = next_arg();
if (!str_is_valid_lowercase_name(name))
{
char *name_copy = strdup(name);
str_ellide_in_place(name_copy, 32);
error_exit("Invalid library name '%s', it should be something like 'foo_lib'.", name_copy);
}
options->libs[options->lib_count++] = name;
return;
}
if (match_longopt("libdir"))
{
if (at_end() || next_is_opt()) error_exit("error: --libdir needs a directory.");
if (options->lib_dir_count == MAX_LIB_DIRS) error_exit("Max %d library directories may be specified.", MAX_LIB_DIRS);
options->lib_dir[options->lib_dir_count++] = check_dir(next_arg());
return;
}
if (match_longopt("test"))
{
options->test_mode = true;
return;
}
if (match_longopt("template"))
{
if (at_end() || next_is_opt()) error_exit("error: --template needs an argument.");
options->template = next_arg();
return;
}
if (match_longopt("path"))
{
if (at_end() || next_is_opt()) error_exit("error: --path needs a directory.");
options->path = check_dir(next_arg());
return;
}
if (match_longopt("linux-crt"))
{
if (at_end() || next_is_opt()) error_exit("error: --linux-crt needs a directory.");
options->linuxpaths.crt = check_dir(next_arg());
return;
}
if (match_longopt("linux-crtbegin"))
{
if (at_end() || next_is_opt()) error_exit("error: --linux-crtbegin needs a directory.");
options->linuxpaths.crtbegin = check_dir(next_arg());
return;
}
if (match_longopt("safe"))
{
options->safe_mode = 1;
return;
}
if (match_longopt("fast"))
{
options->safe_mode = 0;
return;
}
if (match_longopt("benchmarking"))
{
options->benchmarking = true;
return;
}
if (match_longopt("testing"))
{
options->testing = true;
return;
}
if (match_longopt("help"))
{
usage();
exit_compiler(COMPILER_SUCCESS_EXIT);
}
break;
default:
break;
}
FAIL_WITH_ERR("Cannot process the unknown option \"%s\".", current_arg);
}
BuildOptions parse_arguments(int argc, const char *argv[])
{
arg_count = argc;
args = argv;
if (argc < 2)
{
usage();
exit_compiler(COMPILER_SUCCESS_EXIT);
}
BuildOptions build_options = {
.path = ".",
.emit_llvm = false,
.optimization_setting_override = OPT_SETTING_NOT_SET,
.debug_info_override = DEBUG_INFO_NOT_SET,
.safe_mode = -1,
.build_threads = cpus(),
.command = COMMAND_MISSING,
.reloc_model = RELOC_DEFAULT,
.backend = BACKEND_LLVM,
.x86_vector_capability = X86VECTOR_DEFAULT,
.x86_cpu_set = X86CPU_DEFAULT,
.riscv_float_capability = RISCVFLOAT_DEFAULT,
.memory_environment = MEMORY_ENV_NOT_SET,
.win.crt_linking = WIN_CRT_DEFAULT,
.files = NULL,
.build_dir = NULL,
};
for (int i = DIAG_NONE; i < DIAG_WARNING_TYPE; i++)
{
build_options.severity[i] = DIAG_IGNORE;
}
for (int i = DIAG_WARNING_TYPE; i < DIAG_ERROR_TYPE; i++)
{
build_options.severity[i] = DIAG_WARN;
}
for (int i = DIAG_ERROR_TYPE; i < DIAG_END_SENTINEL; i++)
{
build_options.severity[i] = DIAG_ERROR;
}
for (arg_index = 1; arg_index < arg_count; arg_index++)
{
current_arg = args[arg_index];
if (current_arg[0] == '-')
{
parse_option(&build_options);
continue;
}
if (build_options.command == COMMAND_MISSING)
{
parse_command(&build_options);
continue;
}
if (command_is_projectless(build_options.command) || build_options.command == COMMAND_GENERATE_HEADERS)
{
append_file(&build_options);
continue;
}
FAIL_WITH_ERR("Found the unexpected argument \"%s\".", current_arg);
}
if (build_options.command == COMMAND_MISSING)
{
FAIL_WITH_ERR("Missing a compiler command such as 'compile' or 'build'.");
}
return build_options;
}
ArchOsTarget arch_os_target_from_string(const char *target)
{
for (unsigned i = 1; i <= ARCH_OS_TARGET_LAST; i++)
{
if (strcmp(arch_os_target[i], target) == 0)
{
return (ArchOsTarget)i;
}
}
return ARCH_OS_TARGET_DEFAULT;
}
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