[PATCH v2] gold: Use asm for GCC 9 and older in PR gold/31830 tests

[H.J. Lu]

Since GCC 9 and older fail to compile PR gold/31830 tests:

$ gcc -S testsuite/ver_test_pr31830_b.c -o /tmp/x.s
testsuite/ver_test_pr31830_b.c:3:1: warning: ‘__symver__’ attribute directive ignored [-Wattributes]
 void __collector_foo_2_2(void) {}
 ^~~~

use asm statement, instead of symver attribute, for GCC 9 and older.

	PR gold/31830
	* testsuite/ver_test_pr31830_b.c (__collector_foo_2_2): Use asm
	statement, instead of symver attribute, for GCC 9 and older.
	symver attribute with __asm__.
	* testsuite/ver_test_pr31830_lto.c (__collector_foo_2_2): Likewise.

Signed-off-by: H.J. Lu <hjl.tools@gmail.com>
---
 gold/testsuite/ver_test_pr31830_b.c   | 4 ++++
 gold/testsuite/ver_test_pr31830_lto.c | 4 ++++
 2 files changed, 8 insertions(+)

diff --git a/gold/testsuite/ver_test_pr31830_b.c b/gold/testsuite/ver_test_pr31830_b.c
index aba07cc6305..4464d05e17a 100644
--- a/gold/testsuite/ver_test_pr31830_b.c
+++ b/gold/testsuite/ver_test_pr31830_b.c
@@ -1,3 +1,7 @@
 extern void __collector_foo_2_2(void);
+#if defined(__GNUC__) && __GNUC__ >= 10
 __attribute__((__symver__("foo@GLIBC_2.2.5")))
+#else
+__asm__ (".symver __collector_foo_2_2, foo@GLIBC_2.2.5");
+#endif
 void __collector_foo_2_2(void) {}
diff --git a/gold/testsuite/ver_test_pr31830_lto.c b/gold/testsuite/ver_test_pr31830_lto.c
index 999dd63f884..862ac68bfd6 100644
--- a/gold/testsuite/ver_test_pr31830_lto.c
+++ b/gold/testsuite/ver_test_pr31830_lto.c
@@ -1,5 +1,9 @@
 extern __inline __attribute__((__gnu_inline__)) void foo(void) {}
 extern void __collector_foo_2_2(void);
+#if defined(__GNUC__) && __GNUC__ >= 10
 __attribute__((__symver__("foo@GLIBC_2.2.5")))
+#else
+__asm__ (".symver __collector_foo_2_2, foo@GLIBC_2.2.5");
+#endif
 void __collector_foo_2_2(void) {}
 void foo(void) {}
-- 
2.46.0