From 5838b447f675444b154bacd205ebf9f47d003b2f Mon Sep 17 00:00:00 2001 From: Marti Bolivar Date: Wed, 6 Jun 2012 18:06:48 -0400 Subject: Rework linker scripts. Having separate linker scripts for all the boards is a bad idea. Most boards really only need to specify MEMORY and the appropriate REGION_ALIASES() so that support/ld/common.inc can do its work. Not having infrastructure for this leads to duplication -- viz. the Maple Mini linker scripts are identical to the Maple's, and the olimex_stm32_h103 linker directory is just a symlink to Maple's. Clearly, the current structure is wrong. To fix it, instead of having per-board subdirectories of support/ld/, add per-MEMORY subdirectories of (new) support/ld/stm32/mem/. The per-board .mk files under support/mk/board-includes/ now reference these directly, and target-config.mk and the Makefile handle this appropriately. We move some other stuff around in target-config.mk to make this all more convenient, and even allow more overriding of the libmaple defaults on a per-board basis. Custom board hacks will be easier now. Unfortunately, lots of duplication under support/ld/stm32/mem/ is necessary, as the LENGTH attribute in a MEMORY region specification doesn't support arithmetic expressions, and ld doesn't seem to have any way to specify MEMORY at the command line (why?!). If we find a better way than this, we should do it. If a board (e.g. Maple Native) _does_ really need special memory-related configuration, you can always put a per-board subdirectory of support/ld/stm32/mem. We do this here to configure the heap. Signed-off-by: Marti Bolivar --- support/make/board-includes/VLDiscovery.mk | 1 + 1 file changed, 1 insertion(+) (limited to 'support/make/board-includes/VLDiscovery.mk') diff --git a/support/make/board-includes/VLDiscovery.mk b/support/make/board-includes/VLDiscovery.mk index 441f078..76cd85a 100644 --- a/support/make/board-includes/VLDiscovery.mk +++ b/support/make/board-includes/VLDiscovery.mk @@ -4,3 +4,4 @@ ERROR_LED_PORT := GPIOC ERROR_LED_PIN := 9 MCU_SERIES := stm32f1 MCU_F1_LINE := value +LD_MEM_DIR := sram_8k_flash_128k -- cgit v1.2.3