Use custom entry name in gcc

This is a continuation of 9f0a8620bd7d325e6d42417b08daff3e55cb88f6 for
gcc.

Signed-off-by: Ayush Singh <ayushsingh1325@gmail.com>

1 files changed, 3 insertions, 2 deletions

diff --git a/compiler/rustc_codegen_gcc/src/context.rs b/compiler/rustc_codegen_gcc/src/context.rs
index 62a61eb8548..2e71c3665da 100644
--- a/compiler/rustc_codegen_gcc/src/context.rs
+++ b/compiler/rustc_codegen_gcc/src/context.rs
@@ -425,8 +425,9 @@ impl<'gcc, 'tcx> MiscMethods<'tcx> for CodegenCx<'gcc, 'tcx> {
     }
 
     fn declare_c_main(&self, fn_type: Self::Type) -> Option<Self::Function> {
-        if self.get_declared_value("main").is_none() {
-            Some(self.declare_cfn("main", fn_type))
+        let entry_name = self.sess().target.entry_name.as_ref();
+        if self.get_declared_value(entry_name).is_none() {
+            Some(self.declare_entry_fn(entry_name, fn_type, ()))
         }
         else {
             // If the symbol already exists, it is an error: for example, the user wrote