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WASI: Switch to crt1-command.o to enable support for new-style commands

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This switches Rust's WASI target to use crt1-command.o instead of
crt1.o, which enables support for new-style commands. By default,
new-style commands work the same way as old-style commands, so nothing
immediately changes here, but this will be needed by later changes to
enable support for typed arguments.

See here for more information on new-style commands:
 - https://github.com/WebAssembly/wasi-libc/pull/203
 - https://reviews.llvm.org/D81689
This commit is contained in:
Dan Gohman 2021-03-08 17:46:03 -08:00
parent 8f349be278
commit fdb899ba4b
2 changed files with 7 additions and 5 deletions
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10
compiler/rustc_target/src/spec/crt_objects.rs
View File

@ -108,11 +108,13 @@ pub(super) fn post_mingw() -> CrtObjects {
}
pub(super) fn pre_wasi_fallback() -> CrtObjects {
// Use crt1-command.o instead of crt1.o to enable support for new-style
// commands. See https://reviews.llvm.org/D81689 for more info.
new(&[
(LinkOutputKind::DynamicNoPicExe, &["crt1.o"]),
(LinkOutputKind::DynamicPicExe, &["crt1.o"]),
(LinkOutputKind::StaticNoPicExe, &["crt1.o"]),
(LinkOutputKind::StaticPicExe, &["crt1.o"]),
(LinkOutputKind::DynamicNoPicExe, &["crt1-command.o"]),
(LinkOutputKind::DynamicPicExe, &["crt1-command.o"]),
(LinkOutputKind::StaticNoPicExe, &["crt1-command.o"]),
(LinkOutputKind::StaticPicExe, &["crt1-command.o"]),
(LinkOutputKind::WasiReactorExe, &["crt1-reactor.o"]),
])
}

2
src/bootstrap/compile.rs
View File

@ -210,7 +210,7 @@ fn copy_self_contained_objects(
panic!("Target {:?} does not have a \"wasi-root\" key", target.triple)
})
.join("lib/wasm32-wasi");
for &obj in &["crt1.o", "crt1-reactor.o"] {
for &obj in &["crt1-command.o", "crt1-reactor.o"] {
copy_and_stamp(
builder,
&libdir_self_contained,