Enable the `intrinsics` program on thumb

ci/run.sh

@@ -115,19 +115,9 @@ done
 
 rm -f $path
 
-# Verification of the `intrinsics` program doesn't work on thumb targets right
-# now.
-case $1 in
-    thumb*)
-        exit 0
-        ;;
-    *)
-        ;;
-esac
-
 # Verify that we haven't drop any intrinsic/symbol
 RUSTFLAGS="-C debug-assertions=no" \
-  $cargo build --features "$INTRINSICS_FEATURES" --target $1 --example intrinsics
+  $cargo build --features "$INTRINSICS_FEATURES" --target $1 --example intrinsics -v
 
 # Verify that there are no undefined symbols to `panic` within our
 # implementations

examples/intrinsics.rs

@@ -12,13 +12,14 @@
 #![feature(core_float)]
 #![feature(lang_items)]
 #![feature(start)]
-#![feature(panic_unwind)]
 #![feature(i128_type)]
+#![cfg_attr(windows, feature(panic_unwind))]
 #![no_std]
 
 #[cfg(not(thumb))]
 extern crate alloc_system;
 extern crate compiler_builtins;
+#[cfg(windows)]
 extern crate panic_unwind;
 
 // NOTE cfg(not(thumbv6m)) means that the operation is not supported on ARMv6-M at all. Not even
@@ -444,7 +445,16 @@ pub fn __aeabi_unwind_cpp_pr0() {}
 #[no_mangle]
 pub fn __aeabi_unwind_cpp_pr1() {}
 
-#[cfg(not(test))]
+#[cfg(not(windows))]
+#[allow(non_snake_case)]
+#[no_mangle]
+pub fn _Unwind_Resume() {}
+
+#[cfg(not(windows))]
+#[lang = "eh_personality"]
+#[no_mangle]
+pub extern "C" fn eh_personality() {}
+
 #[lang = "panic_fmt"]
 #[no_mangle]
 #[allow(private_no_mangle_fns)]

src/arm.rs

@@ -37,7 +37,7 @@ pub unsafe fn __aeabi_uldivmod() {
 #[cfg_attr(not(feature = "mangled-names"), no_mangle)]
 pub unsafe fn __aeabi_idivmod() {
     asm!("push {r0, r1, r4, lr}
-          bl __divsi3
+          bl __aeabi_idiv
           pop {r1, r2}
           muls r2, r2, r0
           subs r1, r1, r2