[gcc/devel/rust/master] Fix function name to printf

[Thomas Schwinge]

https://gcc.gnu.org/g:bb08a82b12a39a5ed2f7e178cfcf01081230b047

commit bb08a82b12a39a5ed2f7e178cfcf01081230b047
Author: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>
Date:   Thu Mar 20 17:26:55 2025 +0100

    Fix function name to printf
    
    Function could not be found and triggered an error message.
    
    gcc/testsuite/ChangeLog:
    
            * rust/compile/feature_rust_attri0.rs: Add extern
            function declaration and change name to printf.
            * rust/compile/nr2/exclude: Remove now passing test from exclusion
            list.
    
    Signed-off-by: Pierre-Emmanuel Patry <pierre-emmanuel.patry@embecosm.com>

Diff:
---
 gcc/testsuite/rust/compile/feature_rust_attri0.rs | 6 +++++-
 gcc/testsuite/rust/compile/nr2/exclude            | 1 -
 2 files changed, 5 insertions(+), 2 deletions(-)

diff --git a/gcc/testsuite/rust/compile/feature_rust_attri0.rs b/gcc/testsuite/rust/compile/feature_rust_attri0.rs
index 9c11f561b5b6..1937acf3fe5f 100644
--- a/gcc/testsuite/rust/compile/feature_rust_attri0.rs
+++ b/gcc/testsuite/rust/compile/feature_rust_attri0.rs
@@ -1,3 +1,7 @@
+extern "C" {
+    fn printf(s: *const i8, ...);
+}
+
 #[rustc_builtin_macro] //{ dg-error "internal implementation detail. " "" { target *-*-* }  }
 macro_rules! line {
     () => {{}};
@@ -5,7 +9,7 @@ macro_rules! line {
 
 fn main() -> i32 {
     let a = line!();
-    print(a);
+    printf("%d\0" as *const str as *const i8, a);
 
     0
 }
diff --git a/gcc/testsuite/rust/compile/nr2/exclude b/gcc/testsuite/rust/compile/nr2/exclude
index fed7bde63070..1582d5a2d969 100644
--- a/gcc/testsuite/rust/compile/nr2/exclude
+++ b/gcc/testsuite/rust/compile/nr2/exclude
@@ -1,7 +1,6 @@
 canonical_paths1.rs
 cfg1.rs
 const_generics_3.rs
-feature_rust_attri0.rs
 generics9.rs
 issue-1901.rs
 issue-1981.rs