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build llvm libunwind.a in rustbuild

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12101111
2021-07-26 22:47:07 +08:00
parent ac50a53359
commit 4c9896f279
5 changed files with 204 additions and 156 deletions
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12
library/unwind/src/lib.rs
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@@ -1,6 +1,8 @@
#![no_std]
#![unstable(feature = "panic_unwind", issue = "32837")]
#![feature(link_cfg)]
#![feature(native_link_modifiers)]
#![feature(native_link_modifiers_bundle)]
#![feature(nll)]
#![feature(staged_api)]
#![feature(static_nobundle)]
@@ -42,14 +44,14 @@ cfg_if::cfg_if! {
if #[cfg(all(feature = "llvm-libunwind", feature = "system-llvm-libunwind"))] {
compile_error!("`llvm-libunwind` and `system-llvm-libunwind` cannot be enabled at the same time");
} else if #[cfg(feature = "llvm-libunwind")] {
#[link(name = "unwind", kind = "static")]
#[link(name = "unwind", kind = "static", modifiers = "-bundle")]
extern "C" {}
} else if #[cfg(feature = "system-llvm-libunwind")] {
#[link(name = "unwind", kind = "static-nobundle", cfg(target_feature = "crt-static"))]
#[link(name = "unwind", kind = "static", modifiers = "-bundle", cfg(target_feature = "crt-static"))]
#[link(name = "unwind", cfg(not(target_feature = "crt-static")))]
extern "C" {}
} else {
#[link(name = "unwind", kind = "static", cfg(target_feature = "crt-static"))]
#[link(name = "unwind", kind = "static", modifiers = "-bundle", cfg(target_feature = "crt-static"))]
#[link(name = "gcc_s", cfg(not(target_feature = "crt-static")))]
extern "C" {}
}
@@ -77,10 +79,10 @@ extern "C" {}
extern "C" {}
#[cfg(target_os = "redox")]
#[link(name = "gcc_eh", kind = "static-nobundle", cfg(target_feature = "crt-static"))]
#[link(name = "gcc_eh", kind = "static", modifiers = "-bundle", cfg(target_feature = "crt-static"))]
#[link(name = "gcc_s", cfg(not(target_feature = "crt-static")))]
extern "C" {}
#[cfg(all(target_vendor = "fortanix", target_env = "sgx"))]
#[link(name = "unwind", kind = "static")]
#[link(name = "unwind", kind = "static", modifiers = "-bundle")]
extern "C" {}