New upstream version 1.52.1+dfsg1

[rustc.git] / vendor / rustc-ap-rustc_target / src / spec / thumbv7a_pc_windows_msvc.rs

diff --git a/vendor/rustc-ap-rustc_target/src/spec/thumbv7a_pc_windows_msvc.rs b/vendor/rustc-ap-rustc_target/src/spec/thumbv7a_pc_windows_msvc.rs
new file mode 100644 (file)
index 0000000..8131a6e
--- /dev/null
+++ b/vendor/rustc-ap-rustc_target/src/spec/thumbv7a_pc_windows_msvc.rs
@@ -0,0 +1,38 @@
+use crate::spec::{LinkerFlavor, LldFlavor, PanicStrategy, Target, TargetOptions};
+
+pub fn target() -> Target {
+    let mut base = super::windows_msvc_base::opts();
+
+    // Prevent error LNK2013: BRANCH24(T) fixup overflow
+    // The LBR optimization tries to eliminate branch islands,
+    // but if the displacement is larger than can fit
+    // in the instruction, this error will occur. The linker
+    // should be smart enough to insert branch islands only
+    // where necessary, but this is not the observed behavior.
+    // Disabling the LBR optimization works around the issue.
+    let pre_link_args_msvc = "/OPT:NOLBR".to_string();
+    base.pre_link_args.get_mut(&LinkerFlavor::Msvc).unwrap().push(pre_link_args_msvc.clone());
+    base.pre_link_args
+        .get_mut(&LinkerFlavor::Lld(LldFlavor::Link))
+        .unwrap()
+        .push(pre_link_args_msvc);
+
+    // FIXME(jordanrh): use PanicStrategy::Unwind when SEH is
+    // implemented for windows/arm in LLVM
+    base.panic_strategy = PanicStrategy::Abort;
+
+    Target {
+        llvm_target: "thumbv7a-pc-windows-msvc".to_string(),
+        pointer_width: 32,
+        data_layout: "e-m:w-p:32:32-Fi8-i64:64-v128:64:128-a:0:32-n32-S64".to_string(),
+        arch: "arm".to_string(),
+
+        options: TargetOptions {
+            features: "+vfp3,+neon".to_string(),
+            cpu: "generic".to_string(),
+            max_atomic_width: Some(64),
+            unsupported_abis: super::arm_base::unsupported_abis(),
+            ..base
+        },
+    }
+}