linker_script: move bss section to bl_common.ld.h
Move the bss section to the common header. This adds BAKERY_LOCK_NORMAL
and PMF_TIMESTAMP, which previously existed only in BL31. This is not
a big deal because unused data should not be compiled in the first
place. I believe this should be controlled by BL*_SOURCES in Makefiles,
not by linker scripts.
I investigated BL1, BL2, BL2U, BL31 for plat=fvp, and BL2-AT-EL3,
BL31, BL31 for plat=uniphier. I did not see any more unexpected
code addition.
The bss section has bigger alignment. I added BSS_ALIGN for this.
Currently, SORT_BY_ALIGNMENT() is missing in sp_min.ld.S, and with this
change, the BSS symbols in SP_MIN will be sorted by the alignment.
This is not a big deal (or, even better in terms of the image size).
Change-Id: I680ee61f84067a559bac0757f9d03e73119beb33
Signed-off-by: Masahiro Yamada <yamada.masahiro@socionext.com>
diff --git a/bl2/bl2.ld.S b/bl2/bl2.ld.S
index dc51652..15df5dd 100644
--- a/bl2/bl2.ld.S
+++ b/bl2/bl2.ld.S
@@ -94,18 +94,7 @@
__STACKS_END__ = .;
} >RAM
- /*
- * The .bss section gets initialised to 0 at runtime.
- * Its base address should be 16-byte aligned for better performance of the
- * zero-initialization code.
- */
- .bss : ALIGN(16) {
- __BSS_START__ = .;
- *(SORT_BY_ALIGNMENT(.bss*))
- *(COMMON)
- __BSS_END__ = .;
- } >RAM
-
+ BSS_SECTION >RAM
XLAT_TABLE_SECTION >RAM
#if USE_COHERENT_MEM