Diff: TARGET_LPC1768/TOOLCHAIN_GCC_ARM/LPC1768.ld

Revision:

66:9c8f0e3462fb

Parent:

65:5798e58a58b1

--- a/TARGET_LPC1768/TOOLCHAIN_GCC_ARM/LPC1768.ld	Mon Aug 12 13:17:46 2013 +0300
+++ b/TARGET_LPC1768/TOOLCHAIN_GCC_ARM/LPC1768.ld	Mon Aug 19 13:34:54 2013 +0300
@@ -1,149 +1,172 @@
-/* Linker script for mbed LPC1768 */
-
-/* Linker script to configure memory regions. */
-MEMORY
-{
-  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 512K
-  RAM (rwx) : ORIGIN = 0x100000C8, LENGTH = 0x7F38
-
-  USB_RAM(rwx) : ORIGIN = 0x2007C000, LENGTH = 16K
-  ETH_RAM(rwx) : ORIGIN = 0x20080000, LENGTH = 16K
-}
-
-/* Linker script to place sections and symbol values. Should be used together
- * with other linker script that defines memory regions FLASH and RAM.
- * It references following symbols, which must be defined in code:
- *   Reset_Handler : Entry of reset handler
- * 
- * It defines following symbols, which code can use without definition:
- *   __exidx_start
- *   __exidx_end
- *   __etext
- *   __data_start__
- *   __preinit_array_start
- *   __preinit_array_end
- *   __init_array_start
- *   __init_array_end
- *   __fini_array_start
- *   __fini_array_end
- *   __data_end__
- *   __bss_start__
- *   __bss_end__
- *   __end__
- *   end
- *   __HeapLimit
- *   __StackLimit
- *   __StackTop
- *   __stack
- */
-ENTRY(Reset_Handler)
-
-SECTIONS
-{
-    .text :
-    {
-        KEEP(*(.isr_vector))
-        *(.text*)
-
-        KEEP(*(.init))
-        KEEP(*(.fini))
-
-        /* .ctors */
-        *crtbegin.o(.ctors)
-        *crtbegin?.o(.ctors)
-        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
-        *(SORT(.ctors.*))
-        *(.ctors)
-
-        /* .dtors */
-        *crtbegin.o(.dtors)
-        *crtbegin?.o(.dtors)
-        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
-        *(SORT(.dtors.*))
-        *(.dtors)
-
-        *(.rodata*)
-
-        KEEP(*(.eh_frame*))
-    } > FLASH
-
-    .ARM.extab : 
-    {
-        *(.ARM.extab* .gnu.linkonce.armextab.*)
-    } > FLASH
-
-    __exidx_start = .;
-    .ARM.exidx :
-    {
-        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
-    } > FLASH
-    __exidx_end = .;
-
-    __etext = .;
-        
-    .data : AT (__etext)
-    {
-        __data_start__ = .;
-        *(vtable)
-        *(.data*)
-
-        . = ALIGN(4);
-        /* preinit data */
-        PROVIDE (__preinit_array_start = .);
-        KEEP(*(.preinit_array))
-        PROVIDE (__preinit_array_end = .);
-
-        . = ALIGN(4);
-        /* init data */
-        PROVIDE (__init_array_start = .);
-        KEEP(*(SORT(.init_array.*)))
-        KEEP(*(.init_array))
-        PROVIDE (__init_array_end = .);
-
-
-        . = ALIGN(4);
-        /* finit data */
-        PROVIDE (__fini_array_start = .);
-        KEEP(*(SORT(.fini_array.*)))
-        KEEP(*(.fini_array))
-        PROVIDE (__fini_array_end = .);
-
-        . = ALIGN(4);
-        /* All data end */
-        __data_end__ = .;
-
-    } > RAM
-
-    .bss :
-    {
-        __bss_start__ = .;
-        *(.bss*)
-        *(COMMON)
-        __bss_end__ = .;
-    } > RAM
-    
-    .heap :
-    {
-        __end__ = .;
-        end = __end__;
-        *(.heap*)
-        __HeapLimit = .;
-    } > RAM
-
-    /* .stack_dummy section doesn't contains any symbols. It is only
-     * used for linker to calculate size of stack sections, and assign
-     * values to stack symbols later */
-    .stack_dummy :
-    {
-        *(.stack)
-    } > RAM
-
-    /* Set stack top to end of RAM, and stack limit move down by
-     * size of stack_dummy section */
-    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
-    __StackLimit = __StackTop - SIZEOF(.stack_dummy);
-    PROVIDE(__stack = __StackTop);
-    
-    /* Check if data + heap + stack exceeds RAM limit */
-    ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
-}
+/* Linker script for mbed LPC1768 */
+
+/* Linker script to configure memory regions. */
+MEMORY
+{
+  FLASH (rx) : ORIGIN = 0x00000000, LENGTH = 512K
+  RAM (rwx) : ORIGIN = 0x100000C8, LENGTH = (32K - 0xC8)
+
+  USB_RAM(rwx) : ORIGIN = 0x2007C000, LENGTH = 16K
+  ETH_RAM(rwx) : ORIGIN = 0x20080000, LENGTH = 16K
+}
+
+/* Linker script to place sections and symbol values. Should be used together
+ * with other linker script that defines memory regions FLASH and RAM.
+ * It references following symbols, which must be defined in code:
+ *   Reset_Handler : Entry of reset handler
+ * 
+ * It defines following symbols, which code can use without definition:
+ *   __exidx_start
+ *   __exidx_end
+ *   __etext
+ *   __data_start__
+ *   __preinit_array_start
+ *   __preinit_array_end
+ *   __init_array_start
+ *   __init_array_end
+ *   __fini_array_start
+ *   __fini_array_end
+ *   __data_end__
+ *   __bss_start__
+ *   __bss_end__
+ *   __end__
+ *   end
+ *   __HeapLimit
+ *   __StackLimit
+ *   __StackTop
+ *   __stack
+ */
+ENTRY(Reset_Handler)
+
+SECTIONS
+{
+    .text :
+    {
+        KEEP(*(.isr_vector))
+        *(.text*)
+
+        KEEP(*(.init))
+        KEEP(*(.fini))
+
+        /* .ctors */
+        *crtbegin.o(.ctors)
+        *crtbegin?.o(.ctors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .ctors)
+        *(SORT(.ctors.*))
+        *(.ctors)
+
+        /* .dtors */
+        *crtbegin.o(.dtors)
+        *crtbegin?.o(.dtors)
+        *(EXCLUDE_FILE(*crtend?.o *crtend.o) .dtors)
+        *(SORT(.dtors.*))
+        *(.dtors)
+
+        *(.rodata*)
+
+        KEEP(*(.eh_frame*))
+    } > FLASH
+
+    .ARM.extab : 
+    {
+        *(.ARM.extab* .gnu.linkonce.armextab.*)
+    } > FLASH
+
+    __exidx_start = .;
+    .ARM.exidx :
+    {
+        *(.ARM.exidx* .gnu.linkonce.armexidx.*)
+    } > FLASH
+    __exidx_end = .;
+
+    __etext = .;
+        
+    .data : AT (__etext)
+    {
+        __data_start__ = .;
+        Image$$RW_IRAM1$$Base = .;
+        *(vtable)
+        *(.data*)
+
+        . = ALIGN(4);
+        /* preinit data */
+        PROVIDE (__preinit_array_start = .);
+        KEEP(*(.preinit_array))
+        PROVIDE (__preinit_array_end = .);
+
+        . = ALIGN(4);
+        /* init data */
+        PROVIDE (__init_array_start = .);
+        KEEP(*(SORT(.init_array.*)))
+        KEEP(*(.init_array))
+        PROVIDE (__init_array_end = .);
+
+
+        . = ALIGN(4);
+        /* finit data */
+        PROVIDE (__fini_array_start = .);
+        KEEP(*(SORT(.fini_array.*)))
+        KEEP(*(.fini_array))
+        PROVIDE (__fini_array_end = .);
+
+        . = ALIGN(4);
+        /* All data end */
+        __data_end__ = .;
+
+    } > RAM
+
+    
+    .bss :
+    {
+        __bss_start__ = .;
+        *(.bss*)
+        *(COMMON)
+        __bss_end__ = .;
+        Image$$RW_IRAM1$$ZI$$Limit = . ;
+    } > RAM
+
+    
+    .heap :
+    {
+        __end__ = .;
+        end = __end__;
+        *(.heap*)
+        __HeapLimit = .;
+    } > RAM
+
+    /* .stack_dummy section doesn't contains any symbols. It is only
+     * used for linker to calculate size of stack sections, and assign
+     * values to stack symbols later */
+    .stack_dummy :
+    {
+        *(.stack)
+    } > RAM
+
+    /* Set stack top to end of RAM, and stack limit move down by
+     * size of stack_dummy section */
+    __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    __StackLimit = __StackTop - SIZEOF(.stack_dummy);
+    PROVIDE(__stack = __StackTop);
+    
+    /* Check if data + heap + stack exceeds RAM limit */
+    ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+
+
+    /* Code can explicitly ask for data to be 
+       placed in these higher RAM banks where
+       they will be left uninitialized. 
+    */
+    .AHBSRAM0 (NOLOAD):
+    {
+        Image$$RW_IRAM2$$Base = . ;
+        *(AHBSRAM0)
+        Image$$RW_IRAM2$$ZI$$Limit = .;
+    } > USB_RAM
+
+    .AHBSRAM1 (NOLOAD):
+    {
+        Image$$RW_IRAM3$$Base = . ;
+        *(AHBSRAM1)
+        Image$$RW_IRAM3$$ZI$$Limit = .;
+    } > ETH_RAM
+}