[COMMITTED] ada: Add System.Traceback.Symbolic.Module_Name support on AArch64 Linux

[COMMITTED] ada: Add System.Traceback.Symbolic.Module_Name support on AArch64 Linux

[Marc Poulhiès]

From: Joel Brobecker <brobecker@adacore.com>

This commit changes the runtime on aarch64-linux to use the Linux
version of s-tsmona.adb, so as to add support for this functionality
on aarch64-linux.

gcc/ada/

	* Makefile.rtl: Use libgnat/s-tsmona__linux.adb on
	aarch64-linux.  Link libgnat with -ldl, as the use of
	s-tsmona__linux.adb requires it.

Tested on x86_64-pc-linux-gnu, committed on master.

---
 gcc/ada/Makefile.rtl | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/gcc/ada/Makefile.rtl b/gcc/ada/Makefile.rtl
index e2f437ff6e5..ca4c528a7e0 100644
--- a/gcc/ada/Makefile.rtl
+++ b/gcc/ada/Makefile.rtl
@@ -2250,6 +2250,7 @@ ifeq ($(strip $(filter-out aarch64% linux%,$(target_cpu) $(target_os))),)
   s-intman.adb<libgnarl/s-intman__posix.adb \
   s-linux.ads<libgnarl/s-linux.ads \
   $(TRASYM_DWARF_UNIX_PAIRS) \
+  s-tsmona.adb<libgnat/s-tsmona__linux.adb \
   s-mudido.adb<libgnarl/s-mudido__affinity.adb \
   s-osinte.ads<libgnarl/s-osinte__linux.ads \
   s-osinte.adb<libgnarl/s-osinte__posix.adb \
@@ -2272,6 +2273,7 @@ ifeq ($(strip $(filter-out aarch64% linux%,$(target_cpu) $(target_os))),)
   EH_MECHANISM=-gcc
   THREADSLIB=-lpthread -lrt
   GNATLIB_SHARED=gnatlib-shared-dual
+  MISCLIB = -ldl
   GMEM_LIB = gmemlib
   LIBRARY_VERSION := $(LIB_VERSION)
 endif
-- 
2.40.0