[Bug ld/28918] ld can find the a function reference

[qiaopengcheng at loongson dot cn]

https://sourceware.org/bugzilla/show_bug.cgi?id=28918

--- Comment #2 from 乔鹏程 <qiaopengcheng at loongson dot cn> ---
(In reply to Alan Modra from comment #1)
> Testcase unavailable

（1）You can clone the `https://github.com/shushanhf/runtime`
（2）git apply this patch file:
```
diff --git a/eng/common/native/init-compiler.sh
b/eng/common/native/init-compiler.sh
index 517401b688b..813adec3ada 100644
--- a/eng/common/native/init-compiler.sh
+++ b/eng/common/native/init-compiler.sh
@@ -126,11 +126,11 @@ if [ -z "$CC" ]; then
 fi

 # Only lld version >= 9 can be considered stable. lld doesn't support s390x.
-if [ "$compiler" = "clang" ] && [ -n "$majorVersion" ] && [ "$majorVersion"
-ge 9 ] && [ "$build_arch" != "s390x" ]; then
-    if "$CC" -fuse-ld=lld -Wl,--version >/dev/null 2>&1; then
-        LDFLAGS="-fuse-ld=lld"
-    fi
-fi
+#if [ "$compiler" = "clang" ] && [ -n "$majorVersion" ] && [ "$majorVersion"
-ge 9 ] && [ "$build_arch" != "s390x" ]; then
+#    if "$CC" -fuse-ld=lld -Wl,--version >/dev/null 2>&1; then
+#        LDFLAGS="-fuse-ld=lld"
+#    fi
+#fi

 SCAN_BUILD_COMMAND="$(command -v "scan-build$desired_version")"

```
（3）enter the directory `cd  runtime/src/coreclr/` 
（4）`./build-runtime.sh gcc -debug -skipmanaged -nopgooptimize
-skipcrossarchnative `

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