build(tsp): 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: Id702a2a572f2b43c77d53634ddc64b0220d2560b
Signed-off-by: Chris Kay <chris.kay@arm.com>

diff --git a/bl32/tsp/tsp.mk b/bl32/tsp/tsp.mk
index cfffbdbed9138e52195ea31af695ae56ebd0fcf7..4c18131180ed12c82715a643885589b80e5025ca 100644 (file)
--- a/bl32/tsp/tsp.mk
+++ b/bl32/tsp/tsp.mk
@@ -24,6 +24,12 @@ BL32_SOURCES         +=      bl32/tsp/aarch64/tsp_entrypoint.S       \
 
 BL32_DEFAULT_LINKER_SCRIPT_SOURCE := bl32/tsp/tsp.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
+
 # This flag determines if the TSPD initializes BL32 in tspd_init() (synchronous
 # method) or configures BL31 to pass control to BL32 instead of BL33
 # (asynchronous method).