diff options
Diffstat (limited to 'driver_fw/stm32_flash.ld')
| -rw-r--r-- | driver_fw/stm32_flash.ld | 259 |
1 files changed, 129 insertions, 130 deletions
diff --git a/driver_fw/stm32_flash.ld b/driver_fw/stm32_flash.ld index ec1b5a7..cba7577 100644 --- a/driver_fw/stm32_flash.ld +++ b/driver_fw/stm32_flash.ld @@ -1,137 +1,136 @@ -/* Entry Point */
-ENTRY(Reset_Handler)
-
-/* Highest address of the user mode stack */
-_estack = 0x20004FFF; /* 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 */
+ENTRY(Reset_Handler)
-/* Specify the memory areas */
-MEMORY
-{
-FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 64K
-RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 20K
+MEMORY {
+ FLASH (rx): ORIGIN = 0x08000000, LENGTH = 0x3C00
+ CONFIGFLASH (rw): ORIGIN = 0x08003C00, LENGTH = 0x400
+ RAM (xrw): ORIGIN = 0x20000000, LENGTH = 4K
}
-/* 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 : {
+/* highest address of the user mode stack */
+_estack = 0x20001000;
+
+SECTIONS {
+ /* for Cortex devices, the beginning of the startup code is stored in the .isr_vector section, which goes to FLASH */
+ .isr_vector : {
+ . = ALIGN(4);
+ KEEP(*(.isr_vector)) /* Startup code */
+ . = ALIGN(4);
+ } >FLASH
+
+ /* the program code is stored in the .text section, which goes to Flash */
+ .text : {
+ . = ALIGN(4);
+
+ *(.text) /* normal code */
+ *(.text.*) /* -ffunction-sections code */
+ *(.rodata) /* read-only data (constants) */
+ *(.rodata*) /* -fdata-sections read only data */
+ *(.glue_7) /* TBD - needed ? */
+ *(.glue_7t) /* TBD - needed ? */
+
+ *(.source_tarball)
+
+ /* Necessary KEEP sections (see http://sourceware.org/ml/newlib/2005/msg00255.html) */
+ KEEP (*(.init))
+ KEEP (*(.fini))
+ KEEP (*(.source_tarball))
+
+ . = ALIGN(4);
+ _etext = .;
+ /* This is used by the startup in order to initialize the .data section */
+ _sidata = _etext;
+ } >FLASH
+
+ /*
+ .configflash : {
+ . = ALIGN(0x400);
+ *(.configdata)
+ _econfig = .;
+ } >FLASH
+ */
+
+ /* This is the initialized data section
+ The program executes knowing that the data is in the RAM
+ but the loader puts the initial values in the FLASH (inidata).
+ It is one task of the startup to copy the initial values from FLASH to RAM. */
+ .data : AT ( _sidata ) {
+ . = ALIGN(4);
+ /* This is used by the startup in order to initialize the .data secion */
+ _sdata = . ;
+ _data = . ;
+
+ *(.data)
+ *(.data.*)
+ *(.RAMtext)
+
+ . = ALIGN(4);
+ /* This is used by the startup in order to initialize the .data secion */
+ _edata = . ;
+ } >RAM
+
+ /* This is the uninitialized data section */
+ .bss : {
+ . = ALIGN(4);
+ /* This is used by the startup in order to initialize the .bss secion */
+ _sbss = .;
+ _bss = .;
+
+ *(.bss)
+ *(.bss.*) /* patched by elias - allows the use of -fdata-sections */
+ *(COMMON)
+
+ . = ALIGN(4);
+ /* This is used by the startup in order to initialize the .bss secion */
+ _ebss = . ;
+ } >RAM
+
+ PROVIDE ( end = _ebss);
+ PROVIDE (_end = _ebss);
+
__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 = . );
- . = . + _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) }
+
+ /* after that it's only debugging information. */
+
+ /* remove the debugging information from the standard libraries */
+/* /DISCARD/ : {
+ libc.a ( * )
+ libm.a ( * )
+ libgcc.a ( * )
+ }*/
+
+ /* Stabs debugging sections. */
+ .stab 0 : { *(.stab) }
+ .stabstr 0 : { *(.stabstr) }
+ .stab.excl 0 : { *(.stab.excl) }
+ .stab.exclstr 0 : { *(.stab.exclstr) }
+ .stab.index 0 : { *(.stab.index) }
+ .stab.indexstr 0 : { *(.stab.indexstr) }
+ .comment 0 : { *(.comment) }
+ /* DWARF debug sections.
+ Symbols in the DWARF debugging sections are relative to the beginning
+ of the section so we begin them at 0. */
+ /* DWARF 1 */
+ .debug 0 : { *(.debug) }
+ .line 0 : { *(.line) }
+ /* GNU DWARF 1 extensions */
+ .debug_srcinfo 0 : { *(.debug_srcinfo) }
+ .debug_sfnames 0 : { *(.debug_sfnames) }
+ /* DWARF 1.1 and DWARF 2 */
+ .debug_aranges 0 : { *(.debug_aranges) }
+ .debug_pubnames 0 : { *(.debug_pubnames) }
+ /* DWARF 2 */
+ .debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
+ .debug_abbrev 0 : { *(.debug_abbrev) }
+ .debug_line 0 : { *(.debug_line) }
+ .debug_frame 0 : { *(.debug_frame) }
+ .debug_str 0 : { *(.debug_str) }
+ .debug_loc 0 : { *(.debug_loc) }
+ .debug_macinfo 0 : { *(.debug_macinfo) }
+ /* SGI/MIPS DWARF 2 extensions */
+ .debug_weaknames 0 : { *(.debug_weaknames) }
+ .debug_funcnames 0 : { *(.debug_funcnames) }
+ .debug_typenames 0 : { *(.debug_typenames) }
+ .debug_varnames 0 : { *(.debug_varnames) }
}
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