X-Git-Url: https://git.gag.com/?a=blobdiff_plain;f=src%2Fstm%2Faltos-application.ld;h=c94c06b84c546dc2336868d20a70d866a34b54c3;hb=8d0f4bc23eae4f1e085bfb853c995f1fb6b8b594;hp=63a3be0002345662eb4f5acf906491890ed0c835;hpb=c9c35b100c3fcae661501d2bf89eedc7fceb2e1c;p=fw%2Faltos

diff --git a/src/stm/altos-application.ld b/src/stm/altos-application.ld
index 63a3be00..c94c06b8 100644
--- a/src/stm/altos-application.ld
+++ b/src/stm/altos-application.ld
@@ -35,9 +35,19 @@ SECTIONS {
 
 		. = ORIGIN(rom) + 0x100;
 
+
+		/* Ick. What I want is to specify the
+		 * addresses of some global constants so
+		 * that I can find them across versions
+		 * of the application. I can't figure out
+		 * how to make gnu ld do that, so instead
+		 * we just load the two files that include
+		 * these defines in the right order here and
+		 * expect things to 'just work'. Don't change
+		 * the contents of those files, ok?
+		 */
 		ao_romconfig.o(.romconfig*)
 		ao_product.o(.romconfig*)
-
 		*(.text*)	/* Executable code */
 		*(.rodata*)	/* Constants */
 
@@ -45,21 +55,34 @@ SECTIONS {
 
 	.ARM.exidx : {
 		*(.ARM.exidx* .gnu.linkonce.armexidx.*)
-		__text_end__ = .;
 	} > rom
+	__text_end__ = .;
+
+	/* Boot data which must live at the start of ram so that
+	 * the application and bootloader share the same addresses.
+	 * This must be all uninitialized data
+	 */
+	.boot (NOLOAD) : {
+		__boot_start__ = .;
+		*(.boot)
+		. = ALIGN(4);
+		__boot_end__ = .;
+	} >ram
 
 	/* Data -- relocated to RAM, but written to ROM
 	 */
-	.data ORIGIN(ram) : AT (ADDR(.ARM.exidx) + SIZEOF (.ARM.exidx)) {
+	.data : {
 		__data_start__ = .;
 		*(.data)	/* initialized data */
+		. = ALIGN(4);
 		__data_end__ = .;
-		__bss_start__ = .;
-	} >ram
+	} >ram AT>rom
 
 	.bss : {
+		__bss_start__ = .;
 		*(.bss)
 		*(COMMON)
+		. = ALIGN(4);
 		__bss_end__ = .;
 	} >ram