Clean out unused trash from the NuttX configs.

nuttx-configs/px4fmu-v1/scripts/ld.script

@@ -1,7 +1,7 @@
 /****************************************************************************
- * configs/stm32f4discovery/scripts/ld.script
+ * configs/px4fmu-v1/scripts/ld.script
  *
- *   Copyright (C) 2011-2012 Gregory Nutt. All rights reserved.
+ *   Copyright (C) 2011 Gregory Nutt. All rights reserved.
  *   Author: Gregory Nutt <gnutt@nuttx.org>
  *
  * Redistribution and use in source and binary forms, with or without
@@ -42,41 +42,67 @@
  *
  * When booting from FLASH, FLASH memory is aliased to address 0x0000:0000
  * where the code expects to begin execution by jumping to the entry point in
- * the 0x0800:0000 address
- * range.
+ * the 0x0800:0000 address range.
+ *
+ * The first 0x4000 of flash is reserved for the bootloader.
  */
 
 MEMORY
 {
-    flash (rx) : ORIGIN = 0x08004000, LENGTH = 1008K
-    sram (rwx) : ORIGIN = 0x20000000, LENGTH = 112K
+    flash (rx)   : ORIGIN = 0x08004000, LENGTH = 1008K
+    sram (rwx)   : ORIGIN = 0x20000000, LENGTH = 128K
+    ccsram (rwx) : ORIGIN = 0x10000000, LENGTH = 64K
 }
 
 OUTPUT_ARCH(arm)
-EXTERN(_vectors)
-ENTRY(_stext)
+
+ENTRY(__start)		/* treat __start as the anchor for dead code stripping */
+EXTERN(_vectors)	/* force the vectors to be included in the output */
+
+/* 
+ * Ensure that abort() is present in the final object.  The exception handling
+ * code pulled in by libgcc.a requires it (and that code cannot be easily avoided).
+ */
+EXTERN(abort)
+
 SECTIONS
 {
 	.text : {
 		_stext = ABSOLUTE(.);
 		*(.vectors)
-		*(.text .text.*)
+		*(.text .text.*)        
 		*(.fixup)
 		*(.gnu.warning)
-		*(.rodata .rodata.*)
+		*(.rodata .rodata.*)        
 		*(.gnu.linkonce.t.*)
-		*(.glue_7)
-		*(.glue_7t)
 		*(.got)
 		*(.gcc_except_table)
 		*(.gnu.linkonce.r.*)
 		_etext = ABSOLUTE(.);
+
+		/* 
+		 * This is a hack to make the newlib libm __errno() call
+		 * use the NuttX get_errno_ptr() function.
+		 */
+		__errno = get_errno_ptr;
 	} > flash
 
-	.init_section : {
-		_sinit = ABSOLUTE(.);
-		*(.init_array .init_array.*)
-		_einit = ABSOLUTE(.);
+	/*
+	 * Init functions (static constructors and the like)
+	 */
+        .init_section : {
+                _sinit = ABSOLUTE(.);
+                KEEP(*(.init_array .init_array.*))
+                _einit = ABSOLUTE(.);
+        } > flash
+
+	/*
+	 * Construction data for parameters.
+	 */
+	__param ALIGN(4): {
+		__param_start = ABSOLUTE(.);
+		KEEP(*(__param*))
+		__param_end = ABSOLUTE(.);
 	} > flash
 
 	.ARM.extab : {