build(sp-min): sort sections by alignment by default

This change forces LD to sort all input sections by alignment when
allocating them within an output section. This is done in some places
explicitly in the linker scripts today, but this makes sure we don't
miss any easy targets.

Change-Id: I33d5044e4d34a9d1187d0935ffc03d1f1177e340
Signed-off-by: Chris Kay <chris.kay@arm.com>

diff --git a/bl32/sp_min/sp_min.mk b/bl32/sp_min/sp_min.mk
index 0e5c1420c61547b97d01dbca71274acb9bc839dd..fb0161c284285a1134150402eca5e328926f451e 100644 (file)
--- a/bl32/sp_min/sp_min.mk
+++ b/bl32/sp_min/sp_min.mk
@@ -56,6 +56,12 @@ endif
 
 BL32_DEFAULT_LINKER_SCRIPT_SOURCE := bl32/sp_min/sp_min.ld.S
 
+ifneq ($(findstring gcc,$(notdir $(LD))),)
+        BL32_LDFLAGS   +=      -Wl,--sort-section=alignment
+else ifneq ($(findstring ld,$(notdir $(LD))),)
+        BL32_LDFLAGS   +=      --sort-section=alignment
+endif
+
 # Include the platform-specific SP_MIN Makefile
 # If no platform-specific SP_MIN Makefile exists, it means SP_MIN is not supported
 # on this platform.