[gcc r13-478] [Ada] Map gnatlib-shared to gnatlib-shared-dual for aarch64-vx7r2

[Pierre-Marie de Rodat]

https://gcc.gnu.org/g:d12b8e951c3c13e24b41f4c59157aa0643fd1d44

commit r13-478-gd12b8e951c3c13e24b41f4c59157aa0643fd1d44
Author: Olivier Hainque <hainque@adacore.com>
Date:   Fri Feb 18 22:57:42 2022 +0000

    [Ada] Map gnatlib-shared to gnatlib-shared-dual for aarch64-vx7r2
    
    This is an incremental change towards supporting shared libraries
    for VxWorks on aarch64.
    
    The aarch64-vx7r2 compiler supports compilation with -fpic/PIC.  This
    change adds aarch64 to the list of CPUs for which GNATLIB_SHARED maps to
    gnatlib-shared-dual for vxworks7r2, so "make gnatlib-shared" actually
    builds a shared lib.
    
    While other adjustments will be needed to get the runtime tests to pass,
    this one is a necessary step and doesn't impair the rest.
    
    gcc/ada/
    
            * Makefile.rtl: Add aarch64 to the list of CPUs for which
            GNATLIB_SHARED maps to gnatlib-shared-dual for vxworks7r2.

Diff:
---
 gcc/ada/Makefile.rtl | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/gcc/ada/Makefile.rtl b/gcc/ada/Makefile.rtl
index 0394d967a5f..db9acc3fb7b 100644
--- a/gcc/ada/Makefile.rtl
+++ b/gcc/ada/Makefile.rtl
@@ -2854,7 +2854,7 @@ endif
 
 # Turn on shared gnatlib for specific vx7r2 targets for RTP runtimes. Once
 # all targets are ported the target_cpu selector can be removed.
-ifeq ($(strip $(filter-out vxworks7r2 powerpc64 x86_64 rtp rtp-smp, $(target_os) $(target_cpu) $(THREAD_KIND))),)
+ifeq ($(strip $(filter-out vxworks7r2 powerpc64 x86_64 aarch64 rtp rtp-smp, $(target_os) $(target_cpu) $(THREAD_KIND))),)
     GNATLIB_SHARED = gnatlib-shared-dual
     LIBRARY_VERSION := $(LIB_VERSION)
 endif