198 lines
7.1 KiB
Rust
198 lines
7.1 KiB
Rust
use std;
|
|
use rustc;
|
|
|
|
// -*- rust -*-
|
|
import result::{ok, err};
|
|
import std::{io, getopts};
|
|
import io::writer_util;
|
|
import getopts::{opt_present};
|
|
import rustc::driver::driver::*;
|
|
import rustc::syntax::codemap;
|
|
import rustc::driver::diagnostic;
|
|
|
|
fn version(argv0: str) {
|
|
let vers = "unknown version";
|
|
let env_vers = #env["CFG_VERSION"];
|
|
if str::len_bytes(env_vers) != 0u { vers = env_vers; }
|
|
io::stdout().write_str(#fmt["%s %s\n", argv0, vers]);
|
|
io::stdout().write_str(#fmt["host: %s\n", host_triple()]);
|
|
}
|
|
|
|
fn usage(argv0: str) {
|
|
io::stdout().write_str(#fmt["Usage: %s [options] <input>\n", argv0] +
|
|
"
|
|
Options:
|
|
|
|
--bin Compile an executable crate (default)
|
|
-c Compile and assemble, but do not link
|
|
--cfg <cfgspec> Configure the compilation environment
|
|
--emit-llvm Produce an LLVM bitcode file
|
|
-g Produce debug info
|
|
--gc Garbage collect shared data (experimental/temporary)
|
|
-h --help Display this message
|
|
-L <path> Add a directory to the library search path
|
|
--lib Compile a library crate
|
|
--ls List the symbols defined by a compiled library crate
|
|
--no-asm-comments Do not add comments into the assembly source
|
|
--no-lint-ctypes Suppress warnings for possibly incorrect ctype usage
|
|
--no-trans Run all passes except translation; no output
|
|
--no-verify Suppress LLVM verification step (slight speedup)
|
|
(see http://llvm.org/docs/Passes.html for detail)
|
|
-O Equivalent to --opt-level=2
|
|
-o <filename> Write output to <filename>
|
|
--opt-level <lvl> Optimize with possible levels 0-3
|
|
--out-dir <dir> Write output to compiler-chosen filename in <dir>
|
|
--parse-only Parse only; do not compile, assemble, or link
|
|
--pretty [type] Pretty-print the input instead of compiling;
|
|
valid types are: normal (un-annotated source),
|
|
expanded (crates expanded), typed (crates expanded,
|
|
with type annotations), or identified (fully
|
|
parenthesized, AST nodes and blocks with IDs)
|
|
-S Compile only; do not assemble or link
|
|
--save-temps Write intermediate files (.bc, .opt.bc, .o)
|
|
in addition to normal output
|
|
--static Use or produce static libraries or binaries
|
|
--stats Print compilation statistics
|
|
--sysroot <path> Override the system root
|
|
--test Build a test harness
|
|
--target <triple> Target cpu-manufacturer-kernel[-os] to compile for
|
|
(default: host triple)
|
|
(see http://sources.redhat.com/autobook/autobook/
|
|
autobook_17.html for detail)
|
|
|
|
--time-passes Time the individual phases of the compiler
|
|
--time-llvm-passes Time the individual phases of the LLVM backend
|
|
-v --version Print version info and exit
|
|
--warn-unused-imports
|
|
Warn about unnecessary imports
|
|
|
|
");
|
|
}
|
|
|
|
fn run_compiler(args: [str], demitter: diagnostic::emitter) {
|
|
// Don't display log spew by default. Can override with RUST_LOG.
|
|
logging::console_off();
|
|
|
|
let args = args, binary = vec::shift(args);
|
|
|
|
if vec::len(args) == 0u { usage(binary); ret; }
|
|
|
|
let match =
|
|
alt getopts::getopts(args, opts()) {
|
|
ok(m) { m }
|
|
err(f) {
|
|
early_error(demitter, getopts::fail_str(f))
|
|
}
|
|
};
|
|
if opt_present(match, "h") || opt_present(match, "help") {
|
|
usage(binary);
|
|
ret;
|
|
}
|
|
if opt_present(match, "v") || opt_present(match, "version") {
|
|
version(binary);
|
|
ret;
|
|
}
|
|
let ifile = alt vec::len(match.free) {
|
|
0u { early_error(demitter, "No input filename given.") }
|
|
1u { match.free[0] }
|
|
_ { early_error(demitter, "Multiple input filenames provided.") }
|
|
};
|
|
|
|
let sopts = build_session_options(match, demitter);
|
|
let sess = build_session(sopts, ifile, demitter);
|
|
let odir = getopts::opt_maybe_str(match, "out-dir");
|
|
let ofile = getopts::opt_maybe_str(match, "o");
|
|
let cfg = build_configuration(sess, binary, ifile);
|
|
let pretty =
|
|
option::map(getopts::opt_default(match, "pretty",
|
|
"normal"),
|
|
bind parse_pretty(sess, _));
|
|
alt pretty {
|
|
some::<pp_mode>(ppm) { pretty_print_input(sess, cfg, ifile, ppm); ret; }
|
|
none::<pp_mode> {/* continue */ }
|
|
}
|
|
let ls = opt_present(match, "ls");
|
|
if ls {
|
|
list_metadata(sess, ifile, io::stdout());
|
|
ret;
|
|
}
|
|
|
|
compile_input(sess, cfg, ifile, odir, ofile);
|
|
}
|
|
|
|
/*
|
|
This is a sanity check that any failure of the compiler is performed
|
|
through the diagnostic module and reported properly - we shouldn't be calling
|
|
plain-old-fail on any execution path that might be taken. Since we have
|
|
console logging off by default, hitting a plain fail statement would make the
|
|
compiler silently exit, which would be terrible.
|
|
|
|
This method wraps the compiler in a subtask and injects a function into the
|
|
diagnostic emitter which records when we hit a fatal error. If the task
|
|
fails without recording a fatal error then we've encountered a compiler
|
|
bug and need to present an error.
|
|
*/
|
|
fn monitor(f: fn~(diagnostic::emitter)) {
|
|
enum monitor_msg {
|
|
fatal,
|
|
done,
|
|
};
|
|
|
|
let p = comm::port();
|
|
let ch = comm::chan(p);
|
|
|
|
alt task::try {||
|
|
|
|
// The 'diagnostics emitter'. Every error, warning, etc. should
|
|
// go through this function.
|
|
let demitter = fn@(cmsp: option<(codemap::codemap, codemap::span)>,
|
|
msg: str, lvl: diagnostic::level) {
|
|
if lvl == diagnostic::fatal {
|
|
comm::send(ch, fatal);
|
|
}
|
|
diagnostic::emit(cmsp, msg, lvl);
|
|
};
|
|
|
|
resource finally(ch: comm::chan<monitor_msg>) {
|
|
comm::send(ch, done);
|
|
}
|
|
|
|
let _finally = finally(ch);
|
|
|
|
f(demitter)
|
|
} {
|
|
result::ok(_) { /* fallthrough */ }
|
|
result::err(_) {
|
|
// Task failed without emitting a fatal diagnostic
|
|
if comm::recv(p) == done {
|
|
diagnostic::emit(
|
|
none,
|
|
diagnostic::ice_msg("unexpected failure"),
|
|
diagnostic::error);
|
|
let note = "The compiler hit an unexpected failure path. \
|
|
This is a bug. Try running with \
|
|
RUST_LOG=rustc=0,::rt::backtrace \
|
|
to get further details and report the results \
|
|
to github.com/mozilla/rust/issues";
|
|
diagnostic::emit(none, note, diagnostic::note);
|
|
}
|
|
// Fail so the process returns a failure code
|
|
fail;
|
|
}
|
|
}
|
|
}
|
|
|
|
fn main(args: [str]) {
|
|
monitor {|demitter|
|
|
run_compiler(args, demitter);
|
|
}
|
|
}
|
|
|
|
// Local Variables:
|
|
// mode: rust
|
|
// fill-column: 78;
|
|
// indent-tabs-mode: nil
|
|
// c-basic-offset: 4
|
|
// buffer-file-coding-system: utf-8-unix
|
|
// End:
|