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authorAseda Aboagye <aaboagye@google.com>2015-05-29 11:33:27 -0700
committerChromeOS Commit Bot <chromeos-commit-bot@chromium.org>2015-07-17 03:17:50 +0000
commitce063e08297b6578abf6f301f7046302625a781c (patch)
tree1f3cfa5a87c391c30939cc6e522ea251decec461 /core/cortex-m0/ec.lds.S
parent0450571a46724c702363d2706142121f9b61e212 (diff)
downloadchrome-ec-ce063e08297b6578abf6f301f7046302625a781c.tar.gz
build-infr: Add support for shared RO library.
This commit introduces the build infrastructure changes needed for creating a shared RO library. (libsharedobjs). The end goal is for the library to contain various objects that can be shared with both the RO and RW EC images. Now, there are 3 make goals: ro, rw, and libsharedobjs. In order for changes that are only specific to a single image (ie: RW only) to be applied correctly, the object files are now built separately for the RO, RW, shared objects library targets. NOTE: Certain EC targets are incompatible with this model due to the fact that only one image is present within flash at a time. BRANCH=none BUG=None TEST=make -j buildall tests TEST=make -j BOARD=cr50 xrefs TEST=make BOARD=samus dis TEST=Built samus EC image and compared that the final EC image was identical to the upstream version (except for the git SHAs & version strings). CQ-DEPEND=CL:285934 Change-Id: I8e67f089710be9c6d7017718109262394bdad2f5 Signed-off-by: Aseda Aboagye <aaboagye@google.com> Reviewed-on: https://chromium-review.googlesource.com/274079 Reviewed-by: Randall Spangler <rspangler@chromium.org> Reviewed-by: Aseda Aboagye <aaboagye@chromium.org> Tested-by: Aseda Aboagye <aaboagye@chromium.org> Commit-Queue: Aseda Aboagye <aaboagye@chromium.org>
Diffstat (limited to 'core/cortex-m0/ec.lds.S')
-rw-r--r--core/cortex-m0/ec.lds.S8
1 files changed, 8 insertions, 0 deletions
diff --git a/core/cortex-m0/ec.lds.S b/core/cortex-m0/ec.lds.S
index 48144a4b9d..594fcfff50 100644
--- a/core/cortex-m0/ec.lds.S
+++ b/core/cortex-m0/ec.lds.S
@@ -17,6 +17,9 @@ OUTPUT_ARCH(BFD_ARCH)
ENTRY(reset)
MEMORY
{
+#ifdef CONFIG_SHAREDLIB
+ SHARED_LIB (rx) : ORIGIN = FW_OFF(SHAREDLIB), LENGTH = FW_SIZE_(SHAREDLIB)
+#endif
FLASH (rx) : ORIGIN = FW_OFF(SECTION), LENGTH = FW_SIZE(SECTION)
IRAM (rw) : ORIGIN = CONFIG_RAM_BASE, LENGTH = CONFIG_RAM_SIZE
#ifdef RSA_PUBLIC_KEY_SIZE
@@ -31,6 +34,11 @@ MEMORY
}
SECTIONS
{
+#ifdef CONFIG_SHAREDLIB
+ .roshared : {
+ KEEP(*(.roshared*))
+ } > SHARED_LIB
+#endif
.text : {
OUTDIR/core/CORE/init.o (.text.vecttable)
. = ALIGN(4);