mirror of
https://codeberg.org/ziglang/zig.git
synced 2025-12-06 05:44:20 +00:00
835 lines
36 KiB
Zig
Vendored
835 lines
36 KiB
Zig
Vendored
const std = @import("std");
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const mem = std.mem;
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const Allocator = mem.Allocator;
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const process = std.process;
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const backend = @import("../backend.zig");
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const Ir = backend.Ir;
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const Object = backend.Object;
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const Compilation = @import("Compilation.zig");
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const Diagnostics = @import("Diagnostics.zig");
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const LangOpts = @import("LangOpts.zig");
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const Preprocessor = @import("Preprocessor.zig");
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const Source = @import("Source.zig");
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const Toolchain = @import("Toolchain.zig");
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const target_util = @import("target.zig");
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const GCCVersion = @import("Driver/GCCVersion.zig");
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pub const Linker = enum {
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ld,
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bfd,
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gold,
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lld,
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mold,
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};
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const Driver = @This();
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comp: *Compilation,
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inputs: std.ArrayListUnmanaged(Source) = .{},
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link_objects: std.ArrayListUnmanaged([]const u8) = .{},
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output_name: ?[]const u8 = null,
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sysroot: ?[]const u8 = null,
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system_defines: Compilation.SystemDefinesMode = .include_system_defines,
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temp_file_count: u32 = 0,
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/// If false, do not emit line directives in -E mode
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line_commands: bool = true,
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/// If true, use `#line <num>` instead of `# <num>` for line directives
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use_line_directives: bool = false,
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only_preprocess: bool = false,
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only_syntax: bool = false,
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only_compile: bool = false,
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only_preprocess_and_compile: bool = false,
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verbose_ast: bool = false,
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verbose_pp: bool = false,
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verbose_ir: bool = false,
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verbose_linker_args: bool = false,
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color: ?bool = null,
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nobuiltininc: bool = false,
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nostdinc: bool = false,
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nostdlibinc: bool = false,
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/// Full path to the aro executable
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aro_name: []const u8 = "",
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/// Value of --triple= passed via CLI
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raw_target_triple: ?[]const u8 = null,
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// linker options
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use_linker: ?[]const u8 = null,
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linker_path: ?[]const u8 = null,
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nodefaultlibs: bool = false,
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nolibc: bool = false,
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nostartfiles: bool = false,
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nostdlib: bool = false,
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pie: ?bool = null,
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rdynamic: bool = false,
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relocatable: bool = false,
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rtlib: ?[]const u8 = null,
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shared: bool = false,
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shared_libgcc: bool = false,
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static: bool = false,
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static_libgcc: bool = false,
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static_pie: bool = false,
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strip: bool = false,
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unwindlib: ?[]const u8 = null,
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pub fn deinit(d: *Driver) void {
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for (d.link_objects.items[d.link_objects.items.len - d.temp_file_count ..]) |obj| {
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std.fs.deleteFileAbsolute(obj) catch {};
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d.comp.gpa.free(obj);
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}
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d.inputs.deinit(d.comp.gpa);
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d.link_objects.deinit(d.comp.gpa);
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d.* = undefined;
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}
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pub const usage =
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\\Usage {s}: [options] file..
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\\
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\\General options:
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\\ -h, --help Print this message.
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\\ -v, --version Print aro version.
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\\
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\\Compile options:
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\\ -c, --compile Only run preprocess, compile, and assemble steps
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\\ -D <macro>=<value> Define <macro> to <value> (defaults to 1)
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\\ -E Only run the preprocessor
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\\ -fchar8_t Enable char8_t (enabled by default in C23 and later)
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\\ -fno-char8_t Disable char8_t (disabled by default for pre-C23)
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\\ -fcolor-diagnostics Enable colors in diagnostics
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\\ -fno-color-diagnostics Disable colors in diagnostics
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\\ -fdeclspec Enable support for __declspec attributes
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\\ -fgnuc-version=<value> Controls value of __GNUC__ and related macros. Set to 0 or empty to disable them.
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\\ -fno-declspec Disable support for __declspec attributes
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\\ -ffp-eval-method=[source|double|extended]
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\\ Evaluation method to use for floating-point arithmetic
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\\ -ffreestanding Compilation in a freestanding environment
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\\ -fgnu-inline-asm Enable GNU style inline asm (default: enabled)
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\\ -fno-gnu-inline-asm Disable GNU style inline asm
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\\ -fhosted Compilation in a hosted environment
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\\ -fms-extensions Enable support for Microsoft extensions
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\\ -fno-ms-extensions Disable support for Microsoft extensions
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\\ -fdollars-in-identifiers
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\\ Allow '$' in identifiers
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\\ -fno-dollars-in-identifiers
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\\ Disallow '$' in identifiers
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\\ -fmacro-backtrace-limit=<limit>
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\\ Set limit on how many macro expansion traces are shown in errors (default 6)
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\\ -fnative-half-type Use the native half type for __fp16 instead of promoting to float
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\\ -fnative-half-arguments-and-returns
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\\ Allow half-precision function arguments and return values
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\\ -fshort-enums Use the narrowest possible integer type for enums
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\\ -fno-short-enums Use "int" as the tag type for enums
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\\ -fsigned-char "char" is signed
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\\ -fno-signed-char "char" is unsigned
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\\ -fsyntax-only Only run the preprocessor, parser, and semantic analysis stages
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\\ -funsigned-char "char" is unsigned
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\\ -fno-unsigned-char "char" is signed
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\\ -fuse-line-directives Use `#line <num>` linemarkers in preprocessed output
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\\ -fno-use-line-directives
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\\ Use `# <num>` linemarkers in preprocessed output
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\\ -I <dir> Add directory to include search path
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\\ -isystem Add directory to SYSTEM include search path
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\\ --emulate=[clang|gcc|msvc]
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\\ Select which C compiler to emulate (default clang)
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\\ -nobuiltininc Do not search the compiler's builtin directory for include files
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\\ -nostdinc, --no-standard-includes
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\\ Do not search the standard system directories or compiler builtin directories for include files.
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\\ -nostdlibinc Do not search the standard system directories for include files, but do search compiler builtin include directories
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\\ -o <file> Write output to <file>
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\\ -P, --no-line-commands Disable linemarker output in -E mode
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\\ -pedantic Warn on language extensions
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\\ --rtlib=<arg> Compiler runtime library to use (libgcc or compiler-rt)
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\\ -std=<standard> Specify language standard
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\\ -S, --assemble Only run preprocess and compilation steps
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\\ --sysroot=<dir> Use dir as the logical root directory for headers and libraries (not fully implemented)
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\\ --target=<value> Generate code for the given target
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\\ -U <macro> Undefine <macro>
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\\ -undef Do not predefine any system-specific macros. Standard predefined macros remain defined.
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\\ -Werror Treat all warnings as errors
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\\ -Werror=<warning> Treat warning as error
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\\ -W<warning> Enable the specified warning
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\\ -Wno-<warning> Disable the specified warning
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\\
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\\Link options:
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\\ -fuse-ld=[bfd|gold|lld|mold]
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\\ Use specific linker
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\\ -nodefaultlibs Do not use the standard system libraries when linking.
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\\ -nolibc Do not use the C library or system libraries tightly coupled with it when linking.
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\\ -nostdlib Do not use the standard system startup files or libraries when linking
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\\ -nostartfiles Do not use the standard system startup files when linking.
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\\ -pie Produce a dynamically linked position independent executable on targets that support it.
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\\ --ld-path=<path> Use linker specified by <path>
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\\ -r Produce a relocatable object as output.
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\\ -rdynamic Pass the flag -export-dynamic to the ELF linker, on targets that support it.
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\\ -s Remove all symbol table and relocation information from the executable.
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\\ -shared Produce a shared object which can then be linked with other objects to form an executable.
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\\ -shared-libgcc On systems that provide libgcc as a shared library, force the use of the shared version
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\\ -static On systems that support dynamic linking, this overrides -pie and prevents linking with the shared libraries.
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\\ -static-libgcc On systems that provide libgcc as a shared library, force the use of the static version
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\\ -static-pie Produce a static position independent executable on targets that support it.
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\\ --unwindlib=<arg> Unwind library to use ("none", "libgcc", or "libunwind") If not specified, will match runtime library
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\\
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\\Debug options:
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\\ --verbose-ast Dump produced AST to stdout
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\\ --verbose-pp Dump preprocessor state
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\\ --verbose-ir Dump ir to stdout
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\\ --verbose-linker-args Dump linker args to stdout
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\\
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\\
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;
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/// Process command line arguments, returns true if something was written to std_out.
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pub fn parseArgs(
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d: *Driver,
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std_out: anytype,
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macro_buf: anytype,
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args: []const []const u8,
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) !bool {
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var i: usize = 1;
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var comment_arg: []const u8 = "";
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var hosted: ?bool = null;
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var gnuc_version: []const u8 = "4.2.1"; // default value set by clang
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while (i < args.len) : (i += 1) {
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const arg = args[i];
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if (mem.startsWith(u8, arg, "-") and arg.len > 1) {
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if (mem.eql(u8, arg, "-h") or mem.eql(u8, arg, "--help")) {
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std_out.print(usage, .{args[0]}) catch |er| {
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return d.fatal("unable to print usage: {s}", .{errorDescription(er)});
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};
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return true;
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} else if (mem.eql(u8, arg, "-v") or mem.eql(u8, arg, "--version")) {
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std_out.writeAll(@import("../backend.zig").version_str ++ "\n") catch |er| {
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return d.fatal("unable to print version: {s}", .{errorDescription(er)});
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};
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return true;
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} else if (mem.startsWith(u8, arg, "-D")) {
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var macro = arg["-D".len..];
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if (macro.len == 0) {
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i += 1;
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if (i >= args.len) {
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try d.err("expected argument after -I");
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continue;
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}
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macro = args[i];
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}
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var value: []const u8 = "1";
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if (mem.indexOfScalar(u8, macro, '=')) |some| {
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value = macro[some + 1 ..];
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macro = macro[0..some];
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}
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try macro_buf.print("#define {s} {s}\n", .{ macro, value });
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} else if (mem.startsWith(u8, arg, "-U")) {
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var macro = arg["-U".len..];
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if (macro.len == 0) {
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i += 1;
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if (i >= args.len) {
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try d.err("expected argument after -I");
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continue;
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}
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macro = args[i];
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}
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try macro_buf.print("#undef {s}\n", .{macro});
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} else if (mem.eql(u8, arg, "-undef")) {
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d.system_defines = .no_system_defines;
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} else if (mem.eql(u8, arg, "-c") or mem.eql(u8, arg, "--compile")) {
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d.only_compile = true;
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} else if (mem.eql(u8, arg, "-E")) {
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d.only_preprocess = true;
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} else if (mem.eql(u8, arg, "-P") or mem.eql(u8, arg, "--no-line-commands")) {
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d.line_commands = false;
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} else if (mem.eql(u8, arg, "-fuse-line-directives")) {
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d.use_line_directives = true;
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} else if (mem.eql(u8, arg, "-fno-use-line-directives")) {
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d.use_line_directives = false;
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} else if (mem.eql(u8, arg, "-fchar8_t")) {
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d.comp.langopts.has_char8_t_override = true;
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} else if (mem.eql(u8, arg, "-fno-char8_t")) {
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d.comp.langopts.has_char8_t_override = false;
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} else if (mem.eql(u8, arg, "-fcolor-diagnostics")) {
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d.color = true;
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} else if (mem.eql(u8, arg, "-fno-color-diagnostics")) {
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d.color = false;
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} else if (mem.eql(u8, arg, "-fdollars-in-identifiers")) {
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d.comp.langopts.dollars_in_identifiers = true;
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} else if (mem.eql(u8, arg, "-fno-dollars-in-identifiers")) {
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d.comp.langopts.dollars_in_identifiers = false;
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} else if (mem.eql(u8, arg, "-fdigraphs")) {
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d.comp.langopts.digraphs = true;
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} else if (mem.eql(u8, arg, "-fgnu-inline-asm")) {
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d.comp.langopts.gnu_asm = true;
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} else if (mem.eql(u8, arg, "-fno-gnu-inline-asm")) {
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d.comp.langopts.gnu_asm = false;
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} else if (mem.eql(u8, arg, "-fno-digraphs")) {
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d.comp.langopts.digraphs = false;
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} else if (option(arg, "-fmacro-backtrace-limit=")) |limit_str| {
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var limit = std.fmt.parseInt(u32, limit_str, 10) catch {
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try d.err("-fmacro-backtrace-limit takes a number argument");
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continue;
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};
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if (limit == 0) limit = std.math.maxInt(u32);
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d.comp.diagnostics.macro_backtrace_limit = limit;
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} else if (mem.eql(u8, arg, "-fnative-half-type")) {
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d.comp.langopts.use_native_half_type = true;
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} else if (mem.eql(u8, arg, "-fnative-half-arguments-and-returns")) {
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d.comp.langopts.allow_half_args_and_returns = true;
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} else if (mem.eql(u8, arg, "-fshort-enums")) {
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d.comp.langopts.short_enums = true;
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} else if (mem.eql(u8, arg, "-fno-short-enums")) {
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d.comp.langopts.short_enums = false;
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} else if (mem.eql(u8, arg, "-fsigned-char")) {
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d.comp.langopts.setCharSignedness(.signed);
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} else if (mem.eql(u8, arg, "-fno-signed-char")) {
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d.comp.langopts.setCharSignedness(.unsigned);
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} else if (mem.eql(u8, arg, "-funsigned-char")) {
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d.comp.langopts.setCharSignedness(.unsigned);
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} else if (mem.eql(u8, arg, "-fno-unsigned-char")) {
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d.comp.langopts.setCharSignedness(.signed);
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} else if (mem.eql(u8, arg, "-fdeclspec")) {
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d.comp.langopts.declspec_attrs = true;
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} else if (mem.eql(u8, arg, "-fno-declspec")) {
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d.comp.langopts.declspec_attrs = false;
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} else if (mem.eql(u8, arg, "-ffreestanding")) {
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hosted = false;
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} else if (mem.eql(u8, arg, "-fhosted")) {
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hosted = true;
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} else if (mem.eql(u8, arg, "-fms-extensions")) {
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d.comp.langopts.enableMSExtensions();
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} else if (mem.eql(u8, arg, "-fno-ms-extensions")) {
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d.comp.langopts.disableMSExtensions();
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} else if (mem.startsWith(u8, arg, "-I")) {
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var path = arg["-I".len..];
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if (path.len == 0) {
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i += 1;
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if (i >= args.len) {
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try d.err("expected argument after -I");
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continue;
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}
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path = args[i];
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}
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try d.comp.include_dirs.append(d.comp.gpa, path);
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} else if (mem.startsWith(u8, arg, "-fsyntax-only")) {
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d.only_syntax = true;
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} else if (mem.startsWith(u8, arg, "-fno-syntax-only")) {
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d.only_syntax = false;
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} else if (mem.eql(u8, arg, "-fgnuc-version=")) {
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gnuc_version = "0";
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} else if (option(arg, "-fgnuc-version=")) |version| {
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gnuc_version = version;
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} else if (mem.startsWith(u8, arg, "-isystem")) {
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var path = arg["-isystem".len..];
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if (path.len == 0) {
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i += 1;
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if (i >= args.len) {
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try d.err("expected argument after -isystem");
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continue;
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}
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path = args[i];
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}
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const duped = try d.comp.gpa.dupe(u8, path);
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errdefer d.comp.gpa.free(duped);
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try d.comp.system_include_dirs.append(d.comp.gpa, duped);
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} else if (option(arg, "--emulate=")) |compiler_str| {
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const compiler = std.meta.stringToEnum(LangOpts.Compiler, compiler_str) orelse {
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try d.comp.addDiagnostic(.{ .tag = .cli_invalid_emulate, .extra = .{ .str = arg } }, &.{});
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continue;
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};
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d.comp.langopts.setEmulatedCompiler(compiler);
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} else if (option(arg, "-ffp-eval-method=")) |fp_method_str| {
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const fp_eval_method = std.meta.stringToEnum(LangOpts.FPEvalMethod, fp_method_str) orelse .indeterminate;
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if (fp_eval_method == .indeterminate) {
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try d.comp.addDiagnostic(.{ .tag = .cli_invalid_fp_eval_method, .extra = .{ .str = fp_method_str } }, &.{});
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continue;
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}
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d.comp.langopts.setFpEvalMethod(fp_eval_method);
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} else if (mem.startsWith(u8, arg, "-o")) {
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var file = arg["-o".len..];
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if (file.len == 0) {
|
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i += 1;
|
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if (i >= args.len) {
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try d.err("expected argument after -o");
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continue;
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}
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file = args[i];
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}
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d.output_name = file;
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} else if (option(arg, "--sysroot=")) |sysroot| {
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d.sysroot = sysroot;
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} else if (mem.eql(u8, arg, "-pedantic")) {
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d.comp.diagnostics.options.pedantic = .warning;
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} else if (option(arg, "--rtlib=")) |rtlib| {
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if (mem.eql(u8, rtlib, "compiler-rt") or mem.eql(u8, rtlib, "libgcc") or mem.eql(u8, rtlib, "platform")) {
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d.rtlib = rtlib;
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|
} else {
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try d.comp.addDiagnostic(.{ .tag = .invalid_rtlib, .extra = .{ .str = rtlib } }, &.{});
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}
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} else if (option(arg, "-Werror=")) |err_name| {
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try d.comp.diagnostics.set(err_name, .@"error");
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} else if (mem.eql(u8, arg, "-Wno-fatal-errors")) {
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d.comp.diagnostics.fatal_errors = false;
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} else if (option(arg, "-Wno-")) |err_name| {
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try d.comp.diagnostics.set(err_name, .off);
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} else if (mem.eql(u8, arg, "-Wfatal-errors")) {
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d.comp.diagnostics.fatal_errors = true;
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} else if (option(arg, "-W")) |err_name| {
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try d.comp.diagnostics.set(err_name, .warning);
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} else if (option(arg, "-std=")) |standard| {
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d.comp.langopts.setStandard(standard) catch
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try d.comp.addDiagnostic(.{ .tag = .cli_invalid_standard, .extra = .{ .str = arg } }, &.{});
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} else if (mem.eql(u8, arg, "-S") or mem.eql(u8, arg, "--assemble")) {
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d.only_preprocess_and_compile = true;
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} else if (option(arg, "--target=")) |triple| {
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const query = std.Target.Query.parse(.{ .arch_os_abi = triple }) catch {
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try d.comp.addDiagnostic(.{ .tag = .cli_invalid_target, .extra = .{ .str = arg } }, &.{});
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continue;
|
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};
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const target = std.zig.system.resolveTargetQuery(query) catch |e| {
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return d.fatal("unable to resolve target: {s}", .{errorDescription(e)});
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};
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d.comp.target = target;
|
|
d.comp.langopts.setEmulatedCompiler(target_util.systemCompiler(target));
|
|
d.raw_target_triple = triple;
|
|
} else if (mem.eql(u8, arg, "--verbose-ast")) {
|
|
d.verbose_ast = true;
|
|
} else if (mem.eql(u8, arg, "--verbose-pp")) {
|
|
d.verbose_pp = true;
|
|
} else if (mem.eql(u8, arg, "--verbose-ir")) {
|
|
d.verbose_ir = true;
|
|
} else if (mem.eql(u8, arg, "--verbose-linker-args")) {
|
|
d.verbose_linker_args = true;
|
|
} else if (mem.eql(u8, arg, "-C") or mem.eql(u8, arg, "--comments")) {
|
|
d.comp.langopts.preserve_comments = true;
|
|
comment_arg = arg;
|
|
} else if (mem.eql(u8, arg, "-CC") or mem.eql(u8, arg, "--comments-in-macros")) {
|
|
d.comp.langopts.preserve_comments = true;
|
|
d.comp.langopts.preserve_comments_in_macros = true;
|
|
comment_arg = arg;
|
|
} else if (option(arg, "-fuse-ld=")) |linker_name| {
|
|
d.use_linker = linker_name;
|
|
} else if (mem.eql(u8, arg, "-fuse-ld=")) {
|
|
d.use_linker = null;
|
|
} else if (option(arg, "--ld-path=")) |linker_path| {
|
|
d.linker_path = linker_path;
|
|
} else if (mem.eql(u8, arg, "-r")) {
|
|
d.relocatable = true;
|
|
} else if (mem.eql(u8, arg, "-shared")) {
|
|
d.shared = true;
|
|
} else if (mem.eql(u8, arg, "-shared-libgcc")) {
|
|
d.shared_libgcc = true;
|
|
} else if (mem.eql(u8, arg, "-static")) {
|
|
d.static = true;
|
|
} else if (mem.eql(u8, arg, "-static-libgcc")) {
|
|
d.static_libgcc = true;
|
|
} else if (mem.eql(u8, arg, "-static-pie")) {
|
|
d.static_pie = true;
|
|
} else if (mem.eql(u8, arg, "-pie")) {
|
|
d.pie = true;
|
|
} else if (mem.eql(u8, arg, "-no-pie") or mem.eql(u8, arg, "-nopie")) {
|
|
d.pie = false;
|
|
} else if (mem.eql(u8, arg, "-rdynamic")) {
|
|
d.rdynamic = true;
|
|
} else if (mem.eql(u8, arg, "-s")) {
|
|
d.strip = true;
|
|
} else if (mem.eql(u8, arg, "-nodefaultlibs")) {
|
|
d.nodefaultlibs = true;
|
|
} else if (mem.eql(u8, arg, "-nolibc")) {
|
|
d.nolibc = true;
|
|
} else if (mem.eql(u8, arg, "-nobuiltininc")) {
|
|
d.nobuiltininc = true;
|
|
} else if (mem.eql(u8, arg, "-nostdinc") or mem.eql(u8, arg, "--no-standard-includes")) {
|
|
d.nostdinc = true;
|
|
} else if (mem.eql(u8, arg, "-nostdlibinc")) {
|
|
d.nostdlibinc = true;
|
|
} else if (mem.eql(u8, arg, "-nostdlib")) {
|
|
d.nostdlib = true;
|
|
} else if (mem.eql(u8, arg, "-nostartfiles")) {
|
|
d.nostartfiles = true;
|
|
} else if (option(arg, "--unwindlib=")) |unwindlib| {
|
|
const valid_unwindlibs: [5][]const u8 = .{ "", "none", "platform", "libunwind", "libgcc" };
|
|
for (valid_unwindlibs) |name| {
|
|
if (mem.eql(u8, name, unwindlib)) {
|
|
d.unwindlib = unwindlib;
|
|
break;
|
|
}
|
|
} else {
|
|
try d.comp.addDiagnostic(.{ .tag = .invalid_unwindlib, .extra = .{ .str = unwindlib } }, &.{});
|
|
}
|
|
} else {
|
|
try d.comp.addDiagnostic(.{ .tag = .cli_unknown_arg, .extra = .{ .str = arg } }, &.{});
|
|
}
|
|
} else if (std.mem.endsWith(u8, arg, ".o") or std.mem.endsWith(u8, arg, ".obj")) {
|
|
try d.link_objects.append(d.comp.gpa, arg);
|
|
} else {
|
|
const source = d.addSource(arg) catch |er| {
|
|
return d.fatal("unable to add source file '{s}': {s}", .{ arg, errorDescription(er) });
|
|
};
|
|
try d.inputs.append(d.comp.gpa, source);
|
|
}
|
|
}
|
|
if (d.comp.langopts.preserve_comments and !d.only_preprocess) {
|
|
return d.fatal("invalid argument '{s}' only allowed with '-E'", .{comment_arg});
|
|
}
|
|
if (hosted) |is_hosted| {
|
|
if (is_hosted) {
|
|
if (d.comp.target.os.tag == .freestanding) {
|
|
return d.fatal("Cannot use freestanding target with `-fhosted`", .{});
|
|
}
|
|
} else {
|
|
d.comp.target.os.tag = .freestanding;
|
|
}
|
|
}
|
|
const version = GCCVersion.parse(gnuc_version);
|
|
if (version.major == -1) {
|
|
return d.fatal("invalid value '{0s}' in '-fgnuc-version={0s}'", .{gnuc_version});
|
|
}
|
|
d.comp.langopts.gnuc_version = version.toUnsigned();
|
|
return false;
|
|
}
|
|
|
|
fn option(arg: []const u8, name: []const u8) ?[]const u8 {
|
|
if (std.mem.startsWith(u8, arg, name) and arg.len > name.len) {
|
|
return arg[name.len..];
|
|
}
|
|
return null;
|
|
}
|
|
|
|
fn addSource(d: *Driver, path: []const u8) !Source {
|
|
if (mem.eql(u8, "-", path)) {
|
|
const stdin = std.io.getStdIn().reader();
|
|
const input = try stdin.readAllAlloc(d.comp.gpa, std.math.maxInt(u32));
|
|
defer d.comp.gpa.free(input);
|
|
return d.comp.addSourceFromBuffer("<stdin>", input);
|
|
}
|
|
return d.comp.addSourceFromPath(path);
|
|
}
|
|
|
|
pub fn err(d: *Driver, msg: []const u8) !void {
|
|
try d.comp.addDiagnostic(.{ .tag = .cli_error, .extra = .{ .str = msg } }, &.{});
|
|
}
|
|
|
|
pub fn fatal(d: *Driver, comptime fmt: []const u8, args: anytype) error{ FatalError, OutOfMemory } {
|
|
try d.comp.diagnostics.list.append(d.comp.gpa, .{
|
|
.tag = .cli_error,
|
|
.kind = .@"fatal error",
|
|
.extra = .{ .str = try std.fmt.allocPrint(d.comp.diagnostics.arena.allocator(), fmt, args) },
|
|
});
|
|
return error.FatalError;
|
|
}
|
|
|
|
pub fn renderErrors(d: *Driver) void {
|
|
Diagnostics.render(d.comp, d.detectConfig(std.io.getStdErr()));
|
|
}
|
|
|
|
pub fn detectConfig(d: *Driver, file: std.fs.File) std.io.tty.Config {
|
|
if (d.color == true) return .escape_codes;
|
|
if (d.color == false) return .no_color;
|
|
|
|
if (file.supportsAnsiEscapeCodes()) return .escape_codes;
|
|
if (@import("builtin").os.tag == .windows and file.isTty()) {
|
|
var info: std.os.windows.CONSOLE_SCREEN_BUFFER_INFO = undefined;
|
|
if (std.os.windows.kernel32.GetConsoleScreenBufferInfo(file.handle, &info) != std.os.windows.TRUE) {
|
|
return .no_color;
|
|
}
|
|
return .{ .windows_api = .{
|
|
.handle = file.handle,
|
|
.reset_attributes = info.wAttributes,
|
|
} };
|
|
}
|
|
|
|
return .no_color;
|
|
}
|
|
|
|
pub fn errorDescription(e: anyerror) []const u8 {
|
|
return switch (e) {
|
|
error.OutOfMemory => "ran out of memory",
|
|
error.FileNotFound => "file not found",
|
|
error.IsDir => "is a directory",
|
|
error.NotDir => "is not a directory",
|
|
error.NotOpenForReading => "file is not open for reading",
|
|
error.NotOpenForWriting => "file is not open for writing",
|
|
error.InvalidUtf8 => "path is not valid UTF-8",
|
|
error.InvalidWtf8 => "path is not valid WTF-8",
|
|
error.FileBusy => "file is busy",
|
|
error.NameTooLong => "file name is too long",
|
|
error.AccessDenied => "access denied",
|
|
error.FileTooBig => "file is too big",
|
|
error.ProcessFdQuotaExceeded, error.SystemFdQuotaExceeded => "ran out of file descriptors",
|
|
error.SystemResources => "ran out of system resources",
|
|
error.FatalError => "a fatal error occurred",
|
|
error.Unexpected => "an unexpected error occurred",
|
|
else => @errorName(e),
|
|
};
|
|
}
|
|
|
|
/// The entry point of the Aro compiler.
|
|
/// **MAY call `exit` if `fast_exit` is set.**
|
|
pub fn main(d: *Driver, tc: *Toolchain, args: []const []const u8, comptime fast_exit: bool) !void {
|
|
var macro_buf = std.ArrayList(u8).init(d.comp.gpa);
|
|
defer macro_buf.deinit();
|
|
|
|
const std_out = std.io.getStdOut().writer();
|
|
if (try parseArgs(d, std_out, macro_buf.writer(), args)) return;
|
|
|
|
const linking = !(d.only_preprocess or d.only_syntax or d.only_compile or d.only_preprocess_and_compile);
|
|
|
|
if (d.inputs.items.len == 0) {
|
|
return d.fatal("no input files", .{});
|
|
} else if (d.inputs.items.len != 1 and d.output_name != null and !linking) {
|
|
return d.fatal("cannot specify -o when generating multiple output files", .{});
|
|
}
|
|
|
|
if (!linking) for (d.link_objects.items) |obj| {
|
|
try d.comp.addDiagnostic(.{ .tag = .cli_unused_link_object, .extra = .{ .str = obj } }, &.{});
|
|
};
|
|
|
|
try tc.discover();
|
|
tc.defineSystemIncludes() catch |er| switch (er) {
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.AroIncludeNotFound => return d.fatal("unable to find Aro builtin headers", .{}),
|
|
};
|
|
|
|
const builtin = try d.comp.generateBuiltinMacros(d.system_defines);
|
|
const user_macros = try d.comp.addSourceFromBuffer("<command line>", macro_buf.items);
|
|
|
|
if (fast_exit and d.inputs.items.len == 1) {
|
|
d.processSource(tc, d.inputs.items[0], builtin, user_macros, fast_exit) catch |e| switch (e) {
|
|
error.FatalError => {
|
|
d.renderErrors();
|
|
d.exitWithCleanup(1);
|
|
},
|
|
else => |er| return er,
|
|
};
|
|
unreachable;
|
|
}
|
|
|
|
for (d.inputs.items) |source| {
|
|
d.processSource(tc, source, builtin, user_macros, fast_exit) catch |e| switch (e) {
|
|
error.FatalError => {
|
|
d.renderErrors();
|
|
},
|
|
else => |er| return er,
|
|
};
|
|
}
|
|
if (d.comp.diagnostics.errors != 0) {
|
|
if (fast_exit) d.exitWithCleanup(1);
|
|
return;
|
|
}
|
|
if (linking) {
|
|
try d.invokeLinker(tc, fast_exit);
|
|
}
|
|
if (fast_exit) std.process.exit(0);
|
|
}
|
|
|
|
fn processSource(
|
|
d: *Driver,
|
|
tc: *Toolchain,
|
|
source: Source,
|
|
builtin: Source,
|
|
user_macros: Source,
|
|
comptime fast_exit: bool,
|
|
) !void {
|
|
d.comp.generated_buf.items.len = 0;
|
|
var pp = try Preprocessor.initDefault(d.comp);
|
|
defer pp.deinit();
|
|
|
|
if (d.comp.langopts.ms_extensions) {
|
|
d.comp.ms_cwd_source_id = source.id;
|
|
}
|
|
|
|
if (d.verbose_pp) pp.verbose = true;
|
|
if (d.only_preprocess) {
|
|
pp.preserve_whitespace = true;
|
|
if (d.line_commands) {
|
|
pp.linemarkers = if (d.use_line_directives) .line_directives else .numeric_directives;
|
|
}
|
|
}
|
|
|
|
try pp.preprocessSources(&.{ source, builtin, user_macros });
|
|
|
|
if (d.only_preprocess) {
|
|
d.renderErrors();
|
|
|
|
if (d.comp.diagnostics.errors != 0) {
|
|
if (fast_exit) std.process.exit(1); // Not linking, no need for cleanup.
|
|
return;
|
|
}
|
|
|
|
const file = if (d.output_name) |some|
|
|
std.fs.cwd().createFile(some, .{}) catch |er|
|
|
return d.fatal("unable to create output file '{s}': {s}", .{ some, errorDescription(er) })
|
|
else
|
|
std.io.getStdOut();
|
|
defer if (d.output_name != null) file.close();
|
|
|
|
var buf_w = std.io.bufferedWriter(file.writer());
|
|
pp.prettyPrintTokens(buf_w.writer()) catch |er|
|
|
return d.fatal("unable to write result: {s}", .{errorDescription(er)});
|
|
|
|
buf_w.flush() catch |er|
|
|
return d.fatal("unable to write result: {s}", .{errorDescription(er)});
|
|
if (fast_exit) std.process.exit(0); // Not linking, no need for cleanup.
|
|
return;
|
|
}
|
|
|
|
var tree = try pp.parse();
|
|
defer tree.deinit();
|
|
|
|
if (d.verbose_ast) {
|
|
const stdout = std.io.getStdOut();
|
|
var buf_writer = std.io.bufferedWriter(stdout.writer());
|
|
tree.dump(d.detectConfig(stdout), buf_writer.writer()) catch {};
|
|
buf_writer.flush() catch {};
|
|
}
|
|
|
|
const prev_errors = d.comp.diagnostics.errors;
|
|
d.renderErrors();
|
|
|
|
if (d.comp.diagnostics.errors != prev_errors) {
|
|
if (fast_exit) d.exitWithCleanup(1);
|
|
return; // do not compile if there were errors
|
|
}
|
|
|
|
if (d.only_syntax) {
|
|
if (fast_exit) std.process.exit(0); // Not linking, no need for cleanup.
|
|
return;
|
|
}
|
|
|
|
if (d.comp.target.ofmt != .elf or d.comp.target.cpu.arch != .x86_64) {
|
|
return d.fatal(
|
|
"unsupported target {s}-{s}-{s}, currently only x86-64 elf is supported",
|
|
.{ @tagName(d.comp.target.cpu.arch), @tagName(d.comp.target.os.tag), @tagName(d.comp.target.abi) },
|
|
);
|
|
}
|
|
|
|
var ir = try tree.genIr();
|
|
defer ir.deinit(d.comp.gpa);
|
|
|
|
if (d.verbose_ir) {
|
|
const stdout = std.io.getStdOut();
|
|
var buf_writer = std.io.bufferedWriter(stdout.writer());
|
|
ir.dump(d.comp.gpa, d.detectConfig(stdout), buf_writer.writer()) catch {};
|
|
buf_writer.flush() catch {};
|
|
}
|
|
|
|
var render_errors: Ir.Renderer.ErrorList = .{};
|
|
defer {
|
|
for (render_errors.values()) |msg| d.comp.gpa.free(msg);
|
|
render_errors.deinit(d.comp.gpa);
|
|
}
|
|
|
|
var obj = ir.render(d.comp.gpa, d.comp.target, &render_errors) catch |e| switch (e) {
|
|
error.OutOfMemory => return error.OutOfMemory,
|
|
error.LowerFail => {
|
|
return d.fatal(
|
|
"unable to render Ir to machine code: {s}",
|
|
.{render_errors.values()[0]},
|
|
);
|
|
},
|
|
};
|
|
defer obj.deinit();
|
|
|
|
// If it's used, name_buf will either hold a filename or `/tmp/<12 random bytes with base-64 encoding>.<extension>`
|
|
// both of which should fit into MAX_NAME_BYTES for all systems
|
|
var name_buf: [std.fs.MAX_NAME_BYTES]u8 = undefined;
|
|
|
|
const out_file_name = if (d.only_compile) blk: {
|
|
const fmt_template = "{s}{s}";
|
|
const fmt_args = .{
|
|
std.fs.path.stem(source.path),
|
|
d.comp.target.ofmt.fileExt(d.comp.target.cpu.arch),
|
|
};
|
|
break :blk d.output_name orelse
|
|
std.fmt.bufPrint(&name_buf, fmt_template, fmt_args) catch return d.fatal("Filename too long for filesystem: " ++ fmt_template, fmt_args);
|
|
} else blk: {
|
|
const random_bytes_count = 12;
|
|
const sub_path_len = comptime std.fs.base64_encoder.calcSize(random_bytes_count);
|
|
|
|
var random_bytes: [random_bytes_count]u8 = undefined;
|
|
std.crypto.random.bytes(&random_bytes);
|
|
var random_name: [sub_path_len]u8 = undefined;
|
|
_ = std.fs.base64_encoder.encode(&random_name, &random_bytes);
|
|
|
|
const fmt_template = "/tmp/{s}{s}";
|
|
const fmt_args = .{
|
|
random_name,
|
|
d.comp.target.ofmt.fileExt(d.comp.target.cpu.arch),
|
|
};
|
|
break :blk std.fmt.bufPrint(&name_buf, fmt_template, fmt_args) catch return d.fatal("Filename too long for filesystem: " ++ fmt_template, fmt_args);
|
|
};
|
|
|
|
const out_file = std.fs.cwd().createFile(out_file_name, .{}) catch |er|
|
|
return d.fatal("unable to create output file '{s}': {s}", .{ out_file_name, errorDescription(er) });
|
|
defer out_file.close();
|
|
|
|
obj.finish(out_file) catch |er|
|
|
return d.fatal("could not output to object file '{s}': {s}", .{ out_file_name, errorDescription(er) });
|
|
|
|
if (d.only_compile) {
|
|
if (fast_exit) std.process.exit(0); // Not linking, no need for cleanup.
|
|
return;
|
|
}
|
|
try d.link_objects.ensureUnusedCapacity(d.comp.gpa, 1);
|
|
d.link_objects.appendAssumeCapacity(try d.comp.gpa.dupe(u8, out_file_name));
|
|
d.temp_file_count += 1;
|
|
if (fast_exit) {
|
|
try d.invokeLinker(tc, fast_exit);
|
|
}
|
|
}
|
|
|
|
fn dumpLinkerArgs(items: []const []const u8) !void {
|
|
const stdout = std.io.getStdOut().writer();
|
|
for (items, 0..) |item, i| {
|
|
if (i > 0) try stdout.writeByte(' ');
|
|
try stdout.print("\"{}\"", .{std.zig.fmtEscapes(item)});
|
|
}
|
|
try stdout.writeByte('\n');
|
|
}
|
|
|
|
/// The entry point of the Aro compiler.
|
|
/// **MAY call `exit` if `fast_exit` is set.**
|
|
pub fn invokeLinker(d: *Driver, tc: *Toolchain, comptime fast_exit: bool) !void {
|
|
var argv = std.ArrayList([]const u8).init(d.comp.gpa);
|
|
defer argv.deinit();
|
|
|
|
var linker_path_buf: [std.fs.MAX_PATH_BYTES]u8 = undefined;
|
|
const linker_path = try tc.getLinkerPath(&linker_path_buf);
|
|
try argv.append(linker_path);
|
|
|
|
try tc.buildLinkerArgs(&argv);
|
|
|
|
if (d.verbose_linker_args) {
|
|
dumpLinkerArgs(argv.items) catch |er| {
|
|
return d.fatal("unable to dump linker args: {s}", .{errorDescription(er)});
|
|
};
|
|
}
|
|
var child = std.process.Child.init(argv.items, d.comp.gpa);
|
|
// TODO handle better
|
|
child.stdin_behavior = .Inherit;
|
|
child.stdout_behavior = .Inherit;
|
|
child.stderr_behavior = .Inherit;
|
|
|
|
const term = child.spawnAndWait() catch |er| {
|
|
return d.fatal("unable to spawn linker: {s}", .{errorDescription(er)});
|
|
};
|
|
switch (term) {
|
|
.Exited => |code| if (code != 0) {
|
|
const e = d.fatal("linker exited with an error code", .{});
|
|
if (fast_exit) d.exitWithCleanup(code);
|
|
return e;
|
|
},
|
|
else => {
|
|
const e = d.fatal("linker crashed", .{});
|
|
if (fast_exit) d.exitWithCleanup(1);
|
|
return e;
|
|
},
|
|
}
|
|
if (fast_exit) d.exitWithCleanup(0);
|
|
}
|
|
|
|
fn exitWithCleanup(d: *Driver, code: u8) noreturn {
|
|
for (d.link_objects.items[d.link_objects.items.len - d.temp_file_count ..]) |obj| {
|
|
std.fs.deleteFileAbsolute(obj) catch {};
|
|
}
|
|
std.process.exit(code);
|
|
}
|