rust-lang/rust
1
0
Fork 0
Code Issues Pull Requests Actions 1 Packages Projects Releases Wiki Activity

Auto merge of #103894 - mati865:gnullvm-libunwind-changes, r=thomcc

Browse Source 
Change the way libunwind is linked for *-windows-gnullvm targets

I have no idea why previous way works for `x86_64-fortanix-unknown-sgx` (assuming it actually works...) but not for `gnullvm`. It fails when linking libtest during Rust build (unless somebody adds `RUSTFLAGS='-Clinkarg=-lunwind'`).
Also fixes exception handling on AArch64.
This commit is contained in:
bors
2022-11-13 21:12:48 +00:00
parent e631891f7a 7333ee092b
commit 7b513af6c4
4 changed files with 9 additions and 8 deletions
Download Patch File Download Diff File Expand all files Collapse all files

4
library/unwind/src/lib.rs
View File

@@ -103,7 +103,3 @@ extern "C" {}
#[cfg(all(target_vendor = "fortanix", target_env = "sgx"))]
#[link(name = "unwind", kind = "static", modifiers = "-bundle")]
extern "C" {}
#[cfg(all(target_os = "windows", target_env = "gnu", target_abi = "llvm"))]
#[link(name = "unwind", kind = "static", modifiers = "-bundle")]
extern "C" {}

10
library/unwind/src/libunwind.rs
View File

@@ -36,9 +36,12 @@ pub const unwinder_private_data_size: usize = 20;
#[cfg(all(target_arch = "arm", any(target_os = "ios", target_os = "watchos")))]
pub const unwinder_private_data_size: usize = 5;
#[cfg(all(target_arch = "aarch64", target_pointer_width = "64"))]
#[cfg(all(target_arch = "aarch64", target_pointer_width = "64", not(target_os = "windows")))]
pub const unwinder_private_data_size: usize = 2;
#[cfg(all(target_arch = "aarch64", target_pointer_width = "64", target_os = "windows"))]
pub const unwinder_private_data_size: usize = 6;
#[cfg(all(target_arch = "aarch64", target_pointer_width = "32"))]
pub const unwinder_private_data_size: usize = 5;
@@ -90,7 +93,10 @@ pub type _Unwind_Exception_Cleanup_Fn =
// rustc_codegen_ssa::src::back::symbol_export, rustc_middle::middle::exported_symbols
// and RFC 2841
#[cfg_attr(
all(feature = "llvm-libunwind", any(target_os = "fuchsia", target_os = "linux")),
any(
all(feature = "llvm-libunwind", any(target_os = "fuchsia", target_os = "linux")),
all(target_os = "windows", target_env = "gnu", target_abi = "llvm")
),
link(name = "unwind", kind = "static", modifiers = "-bundle")
)]
extern "C-unwind" {