[glibc/azanella/clang] i386: Disable some tests on clang

[Adhemerval Zanella <azanella@sourceware.org>]

https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=5ca2ccf69a403bcf6a2f218adeda552daaaaaf7c

commit 5ca2ccf69a403bcf6a2f218adeda552daaaaaf7c
Author: Adhemerval Zanella <adhemerval.zanella@linaro.org>
Date:   Fri Jul 28 09:34:03 2023 -0300

    i386: Disable some tests on clang
    
    clang generated R_I386_PC32 instead of R_386_PLT32 for static
    ifoo calls, which triggers an ld issues where it can not link
    non-PIC and PIC objects.  This seems to be a clang bug.

Diff:
---
 elf/ifuncmain9.c              | 5 +++++
 sysdeps/x86/tst-ifunc-isa-1.c | 5 +++++
 sysdeps/x86/tst-ifunc-isa-2.c | 4 ++++
 3 files changed, 14 insertions(+)

diff --git a/elf/ifuncmain9.c b/elf/ifuncmain9.c
index a13020dc6d..ed9c5a5d86 100644
--- a/elf/ifuncmain9.c
+++ b/elf/ifuncmain9.c
@@ -23,6 +23,7 @@
 # include <stdbool.h>
 # include <stdio.h>
 # include <libc-diag.h>
+# include <support/test-driver.h>
 
 /* Do not use the test framework, so that the process setup is not
    disturbed.  */
@@ -57,6 +58,9 @@ DIAG_POP_NEEDS_COMMENT_CLANG;
 int
 main (void)
 {
+#if defined __clang__ && defined __i386__
+  return EXIT_UNSUPPORTED;
+#else
   bool errors = false;
 
   if (implementation_called != 0)
@@ -93,4 +97,5 @@ main (void)
     }
 
   return errors;
+#endif
 }
diff --git a/sysdeps/x86/tst-ifunc-isa-1.c b/sysdeps/x86/tst-ifunc-isa-1.c
index 44726576f1..276efc0572 100644
--- a/sysdeps/x86/tst-ifunc-isa-1.c
+++ b/sysdeps/x86/tst-ifunc-isa-1.c
@@ -17,14 +17,19 @@
    <https://www.gnu.org/licenses/>.  */
 
 #include <stdlib.h>
+#include <support/test-driver.h>
 #include "tst-ifunc-isa.h"
 
 static int
 do_test (void)
 {
+#if defined __clang__ && defined __i386__
+  return EXIT_UNSUPPORTED;
+#else
   enum isa value = foo ();
   enum isa expected = get_isa ();
   return value == expected ? EXIT_SUCCESS : EXIT_FAILURE;
+#endif
 }
 
 #include <support/test-driver.c>
diff --git a/sysdeps/x86/tst-ifunc-isa-2.c b/sysdeps/x86/tst-ifunc-isa-2.c
index 156c649807..130169b614 100644
--- a/sysdeps/x86/tst-ifunc-isa-2.c
+++ b/sysdeps/x86/tst-ifunc-isa-2.c
@@ -23,12 +23,16 @@
 static int
 do_test (void)
 {
+#if defined __clang__ && defined __i386__
+  return EXIT_UNSUPPORTED;
+#else
   /* CPU must support SSE2.  */
   if (!__builtin_cpu_supports ("sse2"))
     return EXIT_UNSUPPORTED;
   enum isa value = foo ();
   /* All ISAs, but SSE2, are disabled by tunables.  */
   return value == sse2 ? EXIT_SUCCESS : EXIT_FAILURE;
+#endif
 }
 
 #include <support/test-driver.c>