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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 /include/config_std_internal_flash.h
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 'include/config_std_internal_flash.h')
-rw-r--r--include/config_std_internal_flash.h19
1 files changed, 16 insertions, 3 deletions
diff --git a/include/config_std_internal_flash.h b/include/config_std_internal_flash.h
index c0df3d4199..d918e8a813 100644
--- a/include/config_std_internal_flash.h
+++ b/include/config_std_internal_flash.h
@@ -22,14 +22,27 @@
#define CONFIG_FW_PSTATE_OFF (CONFIG_FW_IMAGE_SIZE - CONFIG_FW_PSTATE_SIZE)
/* Size of one firmware image in flash */
-#define CONFIG_FW_IMAGE_SIZE (CONFIG_FLASH_PHYSICAL_SIZE / 2)
+#define CONFIG_FW_IMAGE_SIZE ((CONFIG_FLASH_PHYSICAL_SIZE - \
+ CONFIG_SHAREDLIB_SIZE) / 2)
#define CONFIG_FLASH_SIZE CONFIG_FLASH_PHYSICAL_SIZE
+/*
+ * By default, there is no shared objects library. However, if configured, the
+ * shared objects library will be placed after the RO image.
+ */
+#define CONFIG_SHAREDLIB_MEM_OFF (CONFIG_RO_MEM_OFF + \
+ CONFIG_FW_IMAGE_SIZE)
+#define CONFIG_SHAREDLIB_STORAGE_OFF (CONFIG_RO_STORAGE_OFF + \
+ CONFIG_FW_IMAGE_SIZE)
+#define CONFIG_SHAREDLIB_SIZE 0
+
#define CONFIG_RO_MEM_OFF 0
#define CONFIG_RO_STORAGE_OFF 0
#define CONFIG_RO_SIZE (CONFIG_FW_IMAGE_SIZE - CONFIG_FW_PSTATE_SIZE)
-#define CONFIG_RW_MEM_OFF CONFIG_FW_IMAGE_SIZE
-#define CONFIG_RW_STORAGE_OFF CONFIG_FW_IMAGE_SIZE
+#define CONFIG_RW_MEM_OFF (CONFIG_SHAREDLIB_MEM_OFF + \
+ CONFIG_SHAREDLIB_SIZE)
+#define CONFIG_RW_STORAGE_OFF (CONFIG_SHAREDLIB_STORAGE_OFF + \
+ CONFIG_SHAREDLIB_SIZE)
#define CONFIG_RW_SIZE CONFIG_FW_IMAGE_SIZE
#define CONFIG_WP_OFF CONFIG_RO_STORAGE_OFF