[STM32F3xx] linker script reorganisation

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/TARGET_DISCO_F303VC/TOOLCHAIN_GCC_ARM/STM32F303XC.ld

@@ -1,5 +1,3 @@
-/* Linker script for STM32F */
-
 /* Linker script to configure memory regions. */
 MEMORY
 { 
@@ -33,6 +31,7 @@ MEMORY
  *   __StackLimit
  *   __StackTop
  *   __stack
+ *   _estack
  */
 ENTRY(Reset_Handler)
 
@@ -42,7 +41,6 @@ SECTIONS
     {
         KEEP(*(.isr_vector))
         *(.text*)
-		/* KEEP(.ioview) */
         KEEP(*(.init))
         KEEP(*(.fini))
 
@@ -78,12 +76,12 @@ SECTIONS
     __exidx_end = .;
 
     __etext = .;
-	_sidata = .;
+    _sidata = .;
-        
+
     .data : AT (__etext)
     {
         __data_start__ = .;
-		_sdata = .;
+        _sdata = .;
         *(vtable)
         *(.data*)
 
@@ -112,7 +110,7 @@ SECTIONS
         . = ALIGN(4);
         /* All data end */
         __data_end__ = .;
-		_edata = .;
+        _edata = .;
 
     } > RAM
 
@@ -120,12 +118,12 @@ SECTIONS
     {
         . = ALIGN(4);
         __bss_start__ = .;
-		_sbss = .;
+        _sbss = .;
         *(.bss*)
         *(COMMON)
         . = ALIGN(4);
         __bss_end__ = .;
-		_ebss = .;
+        _ebss = .;
     } > RAM
     
     .heap (COPY):
@@ -147,7 +145,7 @@ SECTIONS
     /* Set stack top to end of RAM, and stack limit move down by
      * size of stack_dummy section */
     __StackTop = ORIGIN(RAM) + LENGTH(RAM);
-	_estack = __StackTop;
+    _estack = __StackTop;
     __StackLimit = __StackTop - SIZEOF(.stack_dummy);
     PROVIDE(__stack = __StackTop);
     

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/TARGET_DISCO_F334C8/TOOLCHAIN_GCC_ARM/STM32F334X8.ld

@@ -1,11 +1,9 @@
-/* Linker script for STM32F407 */
-
 /* Linker script to configure memory regions. */
 MEMORY
 { 
-  FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 0x10000
+  FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 64K
-  RAM (xrw)       : ORIGIN = 0x20000188, LENGTH = 0x3000 - 0x0188
+  CCMRAM (rw)     : ORIGIN = 0x10000000, LENGTH = 4K
-/*  CCMRAM (rw)     : ORIGIN = 0x10000000, LENGTH = 0x1000 */
+  RAM (xrw)       : ORIGIN = 0x20000188, LENGTH = 12K - 0x0188
 }
 
 /* Linker script to place sections and symbol values. Should be used together
@@ -33,6 +31,7 @@ MEMORY
  *   __StackLimit
  *   __StackTop
  *   __stack
+ *   _estack
  */
 ENTRY(Reset_Handler)
 
@@ -42,7 +41,6 @@ SECTIONS
     {
         KEEP(*(.isr_vector))
         *(.text*)
-
         KEEP(*(.init))
         KEEP(*(.fini))
 
@@ -78,10 +76,12 @@ SECTIONS
     __exidx_end = .;
 
     __etext = .;
-        
+    _sidata = .;
+
     .data : AT (__etext)
     {
         __data_start__ = .;
+        _sdata = .;
         *(vtable)
         *(.data*)
 
@@ -110,6 +110,7 @@ SECTIONS
         . = ALIGN(4);
         /* All data end */
         __data_end__ = .;
+        _edata = .;
 
     } > RAM
 
@@ -117,10 +118,12 @@ SECTIONS
     {
         . = ALIGN(4);
         __bss_start__ = .;
+        _sbss = .;
         *(.bss*)
         *(COMMON)
         . = ALIGN(4);
         __bss_end__ = .;
+        _ebss = .;
     } > RAM
     
     .heap (COPY):
@@ -142,6 +145,7 @@ SECTIONS
     /* Set stack top to end of RAM, and stack limit move down by
      * size of stack_dummy section */
     __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    _estack = __StackTop;
     __StackLimit = __StackTop - SIZEOF(.stack_dummy);
     PROVIDE(__stack = __StackTop);
     

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F302R8/TOOLCHAIN_GCC_ARM/STM32F302X8.ld

@@ -1,11 +1,8 @@
-/* Linker script for STM32F407 */
-
 /* Linker script to configure memory regions. */
 MEMORY
 { 
-  FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 0x10000
+  FLASH (rx)     : ORIGIN = 0x08000000, LENGTH = 64K
-  RAM (xrw)       : ORIGIN = 0x20000188, LENGTH = 0x3000 - 0x0188
+  RAM (xrw)      : ORIGIN = 0x20000188, LENGTH = 16K - 0x188
-/*  CCMRAM (rw)     : ORIGIN = 0x10000000, LENGTH = 0x1000 */
 }
 
 /* Linker script to place sections and symbol values. Should be used together
@@ -33,6 +30,7 @@ MEMORY
  *   __StackLimit
  *   __StackTop
  *   __stack
+ *   _estack
  */
 ENTRY(Reset_Handler)
 
@@ -78,10 +76,12 @@ SECTIONS
     __exidx_end = .;
 
     __etext = .;
+    _sidata = .;
         
     .data : AT (__etext)
     {
         __data_start__ = .;
+        _sdata = .;
         *(vtable)
         *(.data*)
 
@@ -110,6 +110,7 @@ SECTIONS
         . = ALIGN(4);
         /* All data end */
         __data_end__ = .;
+        _edata = .;
 
     } > RAM
 
@@ -117,10 +118,12 @@ SECTIONS
     {
         . = ALIGN(4);
         __bss_start__ = .;
+        _sbss = .;
         *(.bss*)
         *(COMMON)
         . = ALIGN(4);
         __bss_end__ = .;
+        _ebss = .;
     } > RAM
     
     .heap (COPY):
@@ -142,6 +145,7 @@ SECTIONS
     /* Set stack top to end of RAM, and stack limit move down by
      * size of stack_dummy section */
     __StackTop = ORIGIN(RAM) + LENGTH(RAM);
+    _estack = __StackTop;
     __StackLimit = __StackTop - SIZEOF(.stack_dummy);
     PROVIDE(__stack = __StackTop);
     

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F302R8/TOOLCHAIN_GCC_ARM/STM32F302X8_FLASH.ld

@@ -1,167 +0,0 @@
-/*
-*****************************************************************************
-**
-**  File        : STM32F302X8_FLASH.ld
-**
-**  Abstract    : Linker script for STM32F302x8 device with
-**                64-KByte FLASH, 16-KByte RAM
-**
-**                Set heap size, stack size and stack location according
-**                to application requirements.
-**
-**                Set memory bank area and size if external memory is used.
-**
-**  Target      : STMicroelectronics STM32
-**
-**  Environment : Atollic TrueSTUDIO(R)
-**
-**  Distribution: The file is distributed “as is,” without any warranty
-**                of any kind.
-**
-**  (c)Copyright Atollic AB.
-**  You may use this file as-is or modify it according to the needs of your
-**  project. This file may only be built (assembled or compiled and linked)
-**  using the Atollic TrueSTUDIO(R) product. The use of this file together
-**  with other tools than Atollic TrueSTUDIO(R) is not permitted.
-**
-*****************************************************************************
-*/
-
-/* Entry Point */
-ENTRY(Reset_Handler)
-
-/* Highest address of the user mode stack */
-_estack = 0x20003FFF;    /* end of RAM */
-
-/* Generate a link error if heap and stack don't fit into RAM */
-_Min_Heap_Size = 0x200;      /* required amount of heap  */
-_Min_Stack_Size = 0x400; /* required amount of stack */
-
-/* Specify the memory areas */
-MEMORY
-{
-FLASH (rx)     : ORIGIN = 0x08000000, LENGTH = 64K
-RAM (xrw)      : ORIGIN = 0x20000188, LENGTH = 16K - 0x188
-}
-
-/* Define output sections */
-SECTIONS
-{
-  /* The startup code goes first into FLASH */
-  .isr_vector :
-  {
-    . = ALIGN(4);
-    KEEP(*(.isr_vector)) /* Startup code */
-    . = ALIGN(4);
-  } >FLASH
-
-  /* The program code and other data goes into FLASH */
-  .text :
-  {
-    . = ALIGN(4);
-    *(.text)           /* .text sections (code) */
-    *(.text*)          /* .text* sections (code) */
-    *(.glue_7)         /* glue arm to thumb code */
-    *(.glue_7t)        /* glue thumb to arm code */
-    *(.eh_frame)
-
-    KEEP (*(.init))
-    KEEP (*(.fini))
-
-    . = ALIGN(4);
-    _etext = .;        /* define a global symbols at end of code */
-  } >FLASH
-
-  /* Constant data goes into FLASH */
-  .rodata :
-  {
-    . = ALIGN(4);
-    *(.rodata)         /* .rodata sections (constants, strings, etc.) */
-    *(.rodata*)        /* .rodata* sections (constants, strings, etc.) */
-    . = ALIGN(4);
-  } >FLASH
-
-  .ARM.extab   : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >FLASH
-  .ARM : {
-    __exidx_start = .;
-    *(.ARM.exidx*)
-    __exidx_end = .;
-  } >FLASH
-
-  .preinit_array     :
-  {
-    PROVIDE_HIDDEN (__preinit_array_start = .);
-    KEEP (*(.preinit_array*))
-    PROVIDE_HIDDEN (__preinit_array_end = .);
-  } >FLASH
-  .init_array :
-  {
-    PROVIDE_HIDDEN (__init_array_start = .);
-    KEEP (*(SORT(.init_array.*)))
-    KEEP (*(.init_array*))
-    PROVIDE_HIDDEN (__init_array_end = .);
-  } >FLASH
-  .fini_array :
-  {
-    PROVIDE_HIDDEN (__fini_array_start = .);
-    KEEP (*(SORT(.fini_array.*)))
-    KEEP (*(.fini_array*))
-    PROVIDE_HIDDEN (__fini_array_end = .);
-  } >FLASH
-
-  /* used by the startup to initialize data */
-  _sidata = LOADADDR(.data);
-
-  /* Initialized data sections goes into RAM, load LMA copy after code */
-  .data : 
-  {
-    . = ALIGN(4);
-    _sdata = .;        /* create a global symbol at data start */
-    *(.data)           /* .data sections */
-    *(.data*)          /* .data* sections */
-
-    . = ALIGN(4);
-    _edata = .;        /* define a global symbol at data end */
-  } >RAM AT> FLASH
-
-  
-  /* Uninitialized data section */
-  . = ALIGN(4);
-  .bss :
-  {
-    /* This is used by the startup in order to initialize the .bss secion */
-    _sbss = .;         /* define a global symbol at bss start */
-    __bss_start__ = _sbss;
-    *(.bss)
-    *(.bss*)
-    *(COMMON)
-
-    . = ALIGN(4);
-    _ebss = .;         /* define a global symbol at bss end */
-    __bss_end__ = _ebss;
-  } >RAM
-
-  /* User_heap_stack section, used to check that there is enough RAM left */
-  ._user_heap_stack :
-  {
-    . = ALIGN(4);
-    PROVIDE ( end = . );
-    PROVIDE ( _end = . );
-    PROVIDE ( __end__ = . );
-    . = . + _Min_Heap_Size;
-    . = . + _Min_Stack_Size;
-    . = ALIGN(4);
-  } >RAM
-
-  
-
-  /* Remove information from the standard libraries */
-  /DISCARD/ :
-  {
-    libc.a ( * )
-    libm.a ( * )
-    libgcc.a ( * )
-  }
-
-  .ARM.attributes 0 : { *(.ARM.attributes) }
-}

libraries/mbed/targets/cmsis/TARGET_STM/TARGET_STM32F3/TARGET_NUCLEO_F334R8/TOOLCHAIN_GCC_ARM/STM32F334x8.ld

@@ -0,0 +1,155 @@
+/* Linker script to configure memory regions. */
+MEMORY
+{ 
+  FLASH (rx)      : ORIGIN = 0x08000000, LENGTH = 64K
+  CCMRAM (rw)     : ORIGIN = 0x10000000, LENGTH = 4K
+  RAM (xrw)       : ORIGIN = 0x20000188, LENGTH = 12K - 0x0188
+}
+
+/* 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
+ *   _estack
+ */
+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 = .;
+    _sidata = .;
+
+    .data : AT (__etext)
+    {
+        __data_start__ = .;
+        _sdata = .;
+        *(vtable)
+        *(.data*)
+
+        . = ALIGN(4);
+        /* preinit data */
+        PROVIDE_HIDDEN (__preinit_array_start = .);
+        KEEP(*(.preinit_array))
+        PROVIDE_HIDDEN (__preinit_array_end = .);
+
+        . = ALIGN(4);
+        /* init data */
+        PROVIDE_HIDDEN (__init_array_start = .);
+        KEEP(*(SORT(.init_array.*)))
+        KEEP(*(.init_array))
+        PROVIDE_HIDDEN (__init_array_end = .);
+
+
+        . = ALIGN(4);
+        /* finit data */
+        PROVIDE_HIDDEN (__fini_array_start = .);
+        KEEP(*(SORT(.fini_array.*)))
+        KEEP(*(.fini_array))
+        PROVIDE_HIDDEN (__fini_array_end = .);
+
+        KEEP(*(.jcr*))
+        . = ALIGN(4);
+        /* All data end */
+        __data_end__ = .;
+        _edata = .;
+
+    } > RAM
+
+    .bss :
+    {
+        . = ALIGN(4);
+        __bss_start__ = .;
+        _sbss = .;
+        *(.bss*)
+        *(COMMON)
+        . = ALIGN(4);
+        __bss_end__ = .;
+        _ebss = .;
+    } > RAM
+    
+    .heap (COPY):
+    {
+        __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 (COPY):
+    {
+        *(.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);
+    _estack = __StackTop;
+    __StackLimit = __StackTop - SIZEOF(.stack_dummy);
+    PROVIDE(__stack = __StackTop);
+    
+    /* Check if data + heap + stack exceeds RAM limit */
+    ASSERT(__StackLimit >= __HeapLimit, "region RAM overflowed with stack")
+}
+