From 13e4dfd3d279693ae7a3a56a00a7b0d88cd26bd1 Mon Sep 17 00:00:00 2001
From: Chris Johns <chrisj@rtems.org>
Date: Tue, 28 Apr 2020 18:34:08 +1000
Subject: rtems-bsb: Use linker garbage collection for BSP based builds

Close #3944.
---
 rtems/config/rtems-bsp.cfg | 11 ++++++++++-
 1 file changed, 10 insertions(+), 1 deletion(-)

(limited to 'rtems/config/rtems-bsp.cfg')

diff --git a/rtems/config/rtems-bsp.cfg b/rtems/config/rtems-bsp.cfg
index d50615e..801cd5c 100644
--- a/rtems/config/rtems-bsp.cfg
+++ b/rtems/config/rtems-bsp.cfg
@@ -227,11 +227,20 @@
  %define rtems_bsp_libs %{rtems_bsp_libs} -lrtemsdefaultconfig
 %endif
 
+#
+# Define any extra flags we may need.
+#
+%define rtems_bsp_ldflags_extra \
+          %{?rtems_bsp_ldflags_extra: %{rtems_bsp_ldflags_extra}} \
+          -Wl,--gc-sections
+
 #
 # The linker flags need to include the machine options for the BSP.
 #
 %define mflags_filter  awk '{for (i=1;i<NF;++i) if ($i ~ /\-m/) printf("%s ",$i);}'
-%define rtems_bsp_ldflags %{rtems_bsp_ldflags} $(echo "%{rtems_bsp_cflags}" | %{mflags_filter})
+%define rtems_bsp_ldflags %{rtems_bsp_ldflags} \
+                          $(echo "%{rtems_bsp_cflags}" | %{mflags_filter}) \
+			  %{rtems_bsp_ldflags_extra}
 
 #
 # Map to names used for cross compiling.
-- 
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