diff options
| author | Sandrine Bailleux <sandrine.bailleux@arm.com> | 2014-05-22 15:28:26 +0100 |
|---|---|---|
| committer | Sandrine Bailleux <sandrine.bailleux@arm.com> | 2014-05-23 11:05:44 +0100 |
| commit | a37255a205fa004bfc075aca81cef45b99dc30cb (patch) | |
| tree | b7ff04d96b7d675c22e95a1ce4734b00128292cd /bl2/bl2.ld.S | |
| parent | 4f59d8359f97e031c212032afeb57124ac4fcd94 (diff) | |
Make the memory layout more flexible
Currently the platform code gets to define the base address of each
boot loader image. However, the linker scripts couteract this
flexibility by enforcing a fixed overall layout of the different
images. For example, they require that the BL3-1 image sits below
the BL2 image. Choosing BL3-1 and BL2 base addresses in such a way
that it violates this constraint makes the build fail at link-time.
This patch requires the platform code to now define a limit address
for each image. The linker scripts check that the image fits within
these bounds so they don't rely anymore on the position of a given
image in regard to the others.
Fixes ARM-software/tf-issues#163
Change-Id: I8c108646825da19a6a8dfb091b613e1dd4ae133c
Diffstat (limited to 'bl2/bl2.ld.S')
| -rw-r--r-- | bl2/bl2.ld.S | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/bl2/bl2.ld.S b/bl2/bl2.ld.S index edb676af..9f02e92c 100644 --- a/bl2/bl2.ld.S +++ b/bl2/bl2.ld.S @@ -117,4 +117,6 @@ SECTIONS __BSS_SIZE__ = SIZEOF(.bss); __COHERENT_RAM_UNALIGNED_SIZE__ = __COHERENT_RAM_END_UNALIGNED__ - __COHERENT_RAM_START__; + + ASSERT(. <= BL2_LIMIT, "BL2 image has exceeded its limit.") } |