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Add -Z print-sysroot commandline option to rustc.

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This commit is contained in:
Michael Woerister 2014-11-13 09:39:27 +01:00
parent 8fb027e398
commit f19e6d71cd
2 changed files with 13 additions and 3 deletions
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9
src/librustc/session/config.rs
View File

@ -212,13 +212,14 @@ macro_rules! debugging_opts(
FLOWGRAPH_PRINT_LOANS,
FLOWGRAPH_PRINT_MOVES,
FLOWGRAPH_PRINT_ASSIGNS,
FLOWGRAPH_PRINT_ALL
FLOWGRAPH_PRINT_ALL,
PRINT_SYSROOT
]
0
)
pub fn debugging_opts_map() -> Vec<(&'static str, &'static str, u64)> {
vec!(("verbose", "in general, enable more debug printouts", VERBOSE),
vec![("verbose", "in general, enable more debug printouts", VERBOSE),
("time-passes", "measure time of each rustc pass", TIME_PASSES),
("count-llvm-insns", "count where LLVM \
instrs originate", COUNT_LLVM_INSNS),
@ -256,7 +257,9 @@ pub fn debugging_opts_map() -> Vec<(&'static str, &'static str, u64)> {
("flowgraph-print-assigns", "Include assignment analysis data in \
--pretty flowgraph output", FLOWGRAPH_PRINT_ASSIGNS),
("flowgraph-print-all", "Include all dataflow analysis data in \
--pretty flowgraph output", FLOWGRAPH_PRINT_ALL))
--pretty flowgraph output", FLOWGRAPH_PRINT_ALL),
("print-sysroot", "Print the sysroot as used by this rustc invocation",
PRINT_SYSROOT)]
}
#[deriving(Clone)]

7
src/librustc_trans/driver/mod.rs
View File

@ -75,6 +75,13 @@ fn run_compiler(args: &[String]) {
describe_lints(&ls, false);
return;
}
let sess = build_session(sopts, None, descriptions);
if sess.debugging_opt(config::PRINT_SYSROOT) {
println!("{}", sess.sysroot().display());
return;
}
early_error("no input filename given");
}
1u => {