[glibc] elf/tst-libc_dlvsym: Add a TEST_COMPAT around some symbol tests

[glibc] elf/tst-libc_dlvsym: Add a TEST_COMPAT around some symbol tests

[Alistair Francis]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=9bd8e3f99d00fc578b8db0a9d61e59e84bbb6b0a

commit 9bd8e3f99d00fc578b8db0a9d61e59e84bbb6b0a
Author: Alistair Francis <alistair.francis@wdc.com>
Date:   Mon Aug 24 15:35:44 2020 -0700

    elf/tst-libc_dlvsym: Add a TEST_COMPAT around some symbol tests
    
    The _sys_errlist and _sys_siglist symbols are deprecated since 2.32.
    This patch adds a TEST_COMPAT check around the tests. This fixes test
    failures on new architectures (such as RV32) that don't have this
    symbol defined.
    
    Reviewed-by: Adhemerval Zanella <adhemerval.zanella@linaro.org>

Diff:
---
 elf/tst-libc_dlvsym.h | 5 +++++
 1 file changed, 5 insertions(+)

diff --git a/elf/tst-libc_dlvsym.h b/elf/tst-libc_dlvsym.h
index 6b132dd7c3..99ef8a3ea3 100644
--- a/elf/tst-libc_dlvsym.h
+++ b/elf/tst-libc_dlvsym.h
@@ -117,8 +117,13 @@ compare_vsyms (void)
      obtain an explicit handle for libc.so.  */
   void *libc_handle = xdlopen (LIBC_SO, RTLD_LAZY | RTLD_NOLOAD);
 
+
+  /* sys_errlist and sys_siglist were deprecated in glibc 2.32 and they are
+     not available on architectures with base ABI newer than 2.32.  */
+#if TEST_COMPAT (libc, GLIBC_2_0, GLIBC_2_32)
   compare_vsyms_1 (libc_handle, "_sys_errlist");
   compare_vsyms_1 (libc_handle, "_sys_siglist");
+#endif
   compare_vsyms_1 (libc_handle, "quick_exit");
 
   xdlclose (libc_handle);