From 9835e2ae736235810b4ea1c162ca5e65c547e770 Mon Sep 17 00:00:00 2001
From: Daniel Baumann <daniel.baumann@progress-linux.org>
Date: Sat, 18 May 2024 04:49:50 +0200
Subject: Merging upstream version 1.71.1+dfsg1.

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>
---
 tests/run-make/no-alloc-shim/Makefile | 24 +++++++++++++++++++
 tests/run-make/no-alloc-shim/foo.rs   | 44 +++++++++++++++++++++++++++++++++++
 2 files changed, 68 insertions(+)
 create mode 100644 tests/run-make/no-alloc-shim/Makefile
 create mode 100644 tests/run-make/no-alloc-shim/foo.rs

(limited to 'tests/run-make/no-alloc-shim')

diff --git a/tests/run-make/no-alloc-shim/Makefile b/tests/run-make/no-alloc-shim/Makefile
new file mode 100644
index 000000000..568e3f9ba
--- /dev/null
+++ b/tests/run-make/no-alloc-shim/Makefile
@@ -0,0 +1,24 @@
+include ../tools.mk
+
+# ignore-cross-compile
+# ignore-msvc FIXME(bjorn3) can't figure out how to link with the MSVC toolchain
+
+TARGET_LIBDIR = $$($(RUSTC) --print target-libdir)
+
+all:
+	$(RUSTC) foo.rs --crate-type bin --emit obj -Cpanic=abort
+ifdef IS_MSVC
+	$(CC) $(CFLAGS) $(TMPDIR)/foo.o $(call OUT_EXE,foo) /link $(TARGET_LIBDIR)/liballoc-*.rlib $(TARGET_LIBDIR)/libcore-*.rlib $(TARGET_LIBDIR)/libcompiler_builtins-*.rlib
+	$(call OUT_EXE,foo)
+else
+	$(CC) $(CFLAGS) $(TMPDIR)/foo.o $(TARGET_LIBDIR)/liballoc-*.rlib $(TARGET_LIBDIR)/libcore-*.rlib $(TARGET_LIBDIR)/libcompiler_builtins-*.rlib -o $(call RUN_BINFILE,foo)
+	$(call RUN_BINFILE,foo)
+endif
+
+	# Check that linking without __rust_no_alloc_shim_is_unstable defined fails
+	$(RUSTC) foo.rs --crate-type bin --emit obj -Cpanic=abort --cfg check_feature_gate
+ifdef IS_MSVC
+	$(CC) $(CFLAGS) $(TMPDIR)/foo.o $(call OUT_EXE,foo) /link $(TARGET_LIBDIR)/liballoc-*.rlib $(TARGET_LIBDIR)/libcore-*.rlib $(TARGET_LIBDIR)/libcompiler_builtins-*.rlib || exit 0 && exit 1
+else
+	$(CC) $(CFLAGS) $(TMPDIR)/foo.o $(TARGET_LIBDIR)/liballoc-*.rlib $(TARGET_LIBDIR)/libcore-*.rlib $(TARGET_LIBDIR)/libcompiler_builtins-*.rlib -o $(call RUN_BINFILE,foo) || exit 0 && exit 1
+endif
diff --git a/tests/run-make/no-alloc-shim/foo.rs b/tests/run-make/no-alloc-shim/foo.rs
new file mode 100644
index 000000000..a3daec3db
--- /dev/null
+++ b/tests/run-make/no-alloc-shim/foo.rs
@@ -0,0 +1,44 @@
+#![feature(default_alloc_error_handler)]
+#![no_std]
+#![no_main]
+
+extern crate alloc;
+
+use alloc::alloc::{GlobalAlloc, Layout};
+
+#[panic_handler]
+fn panic_handler(_: &core::panic::PanicInfo) -> ! {
+    loop {}
+}
+
+#[no_mangle]
+extern "C" fn rust_eh_personality() {
+    loop {}
+}
+
+#[global_allocator]
+static ALLOC: Alloc = Alloc;
+
+struct Alloc;
+
+unsafe impl GlobalAlloc for Alloc {
+    unsafe fn alloc(&self, _: Layout) -> *mut u8 {
+        core::ptr::null_mut()
+    }
+    unsafe fn dealloc(&self, _: *mut u8, _: Layout) {
+        todo!()
+    }
+}
+
+#[cfg(not(check_feature_gate))]
+#[no_mangle]
+static __rust_no_alloc_shim_is_unstable: u8 = 0;
+
+#[no_mangle]
+extern "C" fn main(_argc: usize, _argv: *const *const i8) -> i32 {
+    unsafe {
+        assert_eq!(alloc::alloc::alloc(Layout::new::<()>()), core::ptr::null_mut());
+    }
+
+    0
+}
-- 
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