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Commit b9b3925

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author
Martin Klang
committed
added PLATFORM=OWL1/2/3 makefile option with alternative link files
1 parent 267b96e commit b9b3925

4 files changed

Lines changed: 504 additions & 7 deletions

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‎Source/owl1.ld‎

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/* Entry Point */
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ENTRY(Reset_Handler)
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/* Generate a link error if heap and stack don't fit into RAM */
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_Min_Heap_Size = 0x000; /* required amount of heap */
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_Min_Stack_Size = 0x800; /* required amount of stack */
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/* Specify the memory areas */
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MEMORY
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{
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CCMHEAP (rw) : ORIGIN = 0x10004000, LENGTH = 32K
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PATCHRAM (rwx) : ORIGIN = 0x2000c000, LENGTH = 64K /* total RAM is 112kb */
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EXTRAM (rx) : ORIGIN = 0x68000000, LENGTH = 1M
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}
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/* Define output sections */
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SECTIONS
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{
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/* The startup code goes first into FLASH */
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.program_header :
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{
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. = ALIGN(8);
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_startprog = ABSOLUTE(.); /* define a global symbol at program start */
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KEEP(*(.program_header)) /* Startup code */
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. = ALIGN(8);
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} >PATCHRAM /* AT>PATCHFLASH */
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/* The program code and other data goes into FLASH */
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.text :
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{
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. = ALIGN(8);
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_text_start = .;
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*(.text.Reset_Handler)
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*(.text.startup)
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*(.main*)
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*(.text) /* .text sections (code) */
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*(.text*) /* .text* sections (code) */
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*(.rodata) /* .rodata sections (constants, strings, etc.) */
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*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
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*(.glue_7) /* glue arm to thumb code */
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*(.glue_7t) /* glue thumb to arm code */
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*(.eh_frame)
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. = ALIGN(8);
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/* These are for static constructors and destructors under ELF */
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KEEP (*crtbegin.o(.ctors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*crtend.o(.ctors))
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*crtend.o(.dtors))
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KEEP (*(.init))
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KEEP (*(.fini))
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. = ALIGN(8);
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_etext = .; /* define a global symbol at end of code */
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_text_end = .;
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} >PATCHRAM /* AT>PATCHFLASH */
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_text_load = LOADADDR (.text);
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.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >PATCHRAM /* AT>PATCHFLASH */
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.ARM : {
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__exidx_start = .;
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*(.ARM.exidx*)
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__exidx_end = .;
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} >PATCHRAM /* AT>PATCHFLASH */
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.preinit_array :
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{
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP (*(.preinit_array*))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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} >PATCHRAM /* AT>PATCHFLASH */
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.init_array :
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{
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array*))
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PROVIDE_HIDDEN (__init_array_end = .);
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} >PATCHRAM /* AT>PATCHFLASH */
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.fini_array :
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{
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PROVIDE_HIDDEN (__fini_array_start = .);
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KEEP (*(.fini_array*))
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KEEP (*(SORT(.fini_array.*)))
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PROVIDE_HIDDEN (__fini_array_end = .);
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} >PATCHRAM /* AT>PATCHFLASH */
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/* used by the startup to initialize data */
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_sidata = .;
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/* Initialized data sections goes into RAM, load LMA copy after code */
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.data : AT ( _sidata )
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{
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. = ALIGN(8);
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_sdata = .; /* create a global symbol at data start */
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*(.data) /* .data sections */
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*(.data*) /* .data* sections */
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. = ALIGN(8);
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_edata = .; /* define a global symbol at data end */
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} >PATCHRAM
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/* Uninitialized data section */
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. = ALIGN(8);
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.bss :
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{
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_endprog = ABSOLUTE(.); /* define a global symbol at program end */
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/* This is used by the startup in order to initialize the .bss secion */
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_sbss = .; /* define a global symbol at bss start */
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__bss_start__ = _sbss;
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*(.bss)
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*(.bss*)
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*(COMMON)
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. = ALIGN(8);
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_ebss = .; /* define a global symbol at bss end */
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__bss_end__ = _ebss;
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} >PATCHRAM
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.pv (NOLOAD) :
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{
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. = ALIGN(8);
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_programvector = ABSOLUTE(.);
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*(.pv)
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. = ALIGN(8);
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PROVIDE ( _eprogram = . );
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PROVIDE ( _stack = . );
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} >PATCHRAM
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_eram = ORIGIN(PATCHRAM) + 80k; /* Limit to 80k for OwlWare compatiblity */
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_estack = ORIGIN(PATCHRAM) + 80k;
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.fastheap (NOLOAD) :
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{
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. = ALIGN(8);
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PROVIDE ( _fastheap = . );
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. = ALIGN(8);
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} >CCMHEAP
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_fasteheap = ORIGIN(CCMHEAP) + LENGTH(CCMHEAP);
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/* External SRAM, used for heap memory */
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.extdata (NOLOAD) :
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{
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. = ALIGN(8);
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*(.extdata)
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. = ALIGN(8);
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PROVIDE ( _heap = . );
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. = . + _Min_Heap_Size;
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} >EXTRAM
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_eheap = ORIGIN(EXTRAM) + LENGTH(EXTRAM);
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/* Remove information from the standard libraries */
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/DISCARD/ :
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{
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libc.a ( * )
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libm.a ( * )
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libgcc.a ( * )
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}
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.ARM.attributes 0 : { *(.ARM.attributes) }
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}

‎Source/owl2.ld‎

Lines changed: 159 additions & 0 deletions
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/* Entry Point */
2+
ENTRY(Reset_Handler)
3+
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/* Generate a link error if heap and stack don't fit into RAM */
5+
_Min_Heap_Size = 0x000; /* required amount of heap */
6+
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/* Specify the memory areas */
8+
MEMORY
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{
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CCMHEAP (rw) : ORIGIN = 0x10004000, LENGTH = 32K
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PATCHRAM (rwx) : ORIGIN = 0x2000c000, LENGTH = 144K /* total RAM is 192kb */
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EXTRAM (rx) : ORIGIN = 0x68000000, LENGTH = 8M
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}
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/* Define output sections */
16+
SECTIONS
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{
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/* The startup code goes first into PATCHRAM */
19+
.program_header :
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{
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. = ALIGN(8);
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_startprog = ABSOLUTE(.); /* define a global symbol at program start */
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KEEP(*(.program_header)) /* Startup code */
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. = ALIGN(8);
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} >PATCHRAM /* AT>PATCHFLASH */
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/* The program code and other data goes into PATCHRAM */
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.text :
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{
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. = ALIGN(8);
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_text_start = .;
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*(.text.Reset_Handler)
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*(.text.startup)
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*(.main*)
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*(.text) /* .text sections (code) */
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*(.text*) /* .text* sections (code) */
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*(.rodata) /* .rodata sections (constants, strings, etc.) */
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*(.rodata*) /* .rodata* sections (constants, strings, etc.) */
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*(.glue_7) /* glue arm to thumb code */
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*(.glue_7t) /* glue thumb to arm code */
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*(.eh_frame)
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. = ALIGN(8);
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/* These are for static constructors and destructors under ELF */
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KEEP (*crtbegin.o(.ctors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .ctors))
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KEEP (*(SORT(.ctors.*)))
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KEEP (*crtend.o(.ctors))
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KEEP (*crtbegin.o(.dtors))
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KEEP (*(EXCLUDE_FILE (*crtend.o) .dtors))
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KEEP (*(SORT(.dtors.*)))
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KEEP (*crtend.o(.dtors))
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KEEP (*(.init))
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KEEP (*(.fini))
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. = ALIGN(8);
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_etext = .; /* define a global symbol at end of code */
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_text_end = .;
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} >PATCHRAM
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_text_load = LOADADDR (.text);
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.ARM.extab : { *(.ARM.extab* .gnu.linkonce.armextab.*) } >PATCHRAM
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.ARM : {
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__exidx_start = .;
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*(.ARM.exidx*)
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__exidx_end = .;
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} >PATCHRAM
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.preinit_array :
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{
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PROVIDE_HIDDEN (__preinit_array_start = .);
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KEEP (*(.preinit_array*))
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PROVIDE_HIDDEN (__preinit_array_end = .);
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} >PATCHRAM
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.init_array :
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{
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PROVIDE_HIDDEN (__init_array_start = .);
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KEEP (*(SORT(.init_array.*)))
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KEEP (*(.init_array*))
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PROVIDE_HIDDEN (__init_array_end = .);
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} >PATCHRAM
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.fini_array :
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{
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PROVIDE_HIDDEN (__fini_array_start = .);
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KEEP (*(.fini_array*))
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KEEP (*(SORT(.fini_array.*)))
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PROVIDE_HIDDEN (__fini_array_end = .);
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} >PATCHRAM
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/* used by the startup to initialize data */
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_sidata = .;
90+
91+
/* Initialized data sections goes into RAM, load LMA copy after code */
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.data : AT ( _sidata )
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{
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. = ALIGN(8);
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_sdata = .; /* create a global symbol at data start */
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*(.data) /* .data sections */
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*(.data*) /* .data* sections */
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. = ALIGN(8);
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_edata = .; /* define a global symbol at data end */
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} >PATCHRAM
101+
102+
/* Uninitialized data section */
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. = ALIGN(8);
104+
.bss :
105+
{
106+
_endprog = ABSOLUTE(.); /* define a global symbol at program end */
107+
/* This is used by the startup in order to initialize the .bss secion */
108+
_sbss = .; /* define a global symbol at bss start */
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__bss_start__ = _sbss;
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*(.bss)
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*(.bss*)
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*(COMMON)
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. = ALIGN(8);
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_ebss = .; /* define a global symbol at bss end */
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__bss_end__ = _ebss;
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} >PATCHRAM
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.pv (NOLOAD) :
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{
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. = ALIGN(8);
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_programvector = ABSOLUTE(.);
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*(.pv)
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. = ALIGN(8);
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PROVIDE ( _eprogram = . );
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PROVIDE ( _stack = . );
126+
} >PATCHRAM
127+
_eram = ORIGIN(PATCHRAM) + 80k; /* Limit to 80k for OwlWare compatiblity */
128+
_estack = ORIGIN(PATCHRAM) + 80k;
129+
130+
.fastheap (NOLOAD) :
131+
{
132+
. = ALIGN(8);
133+
PROVIDE ( _fastheap = . );
134+
. = ALIGN(8);
135+
} >CCMHEAP
136+
_fasteheap = ORIGIN(CCMHEAP) + LENGTH(CCMHEAP);
137+
138+
/* External SRAM, used for heap memory */
139+
.extdata (NOLOAD) :
140+
{
141+
. = ALIGN(8);
142+
*(.extdata)
143+
. = ALIGN(8);
144+
PROVIDE ( _heap = . );
145+
. = . + _Min_Heap_Size;
146+
} >EXTRAM
147+
_eheap = ORIGIN(EXTRAM) + LENGTH(EXTRAM);
148+
149+
150+
/* Remove information from the standard libraries */
151+
/DISCARD/ :
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{
153+
libc.a ( * )
154+
libm.a ( * )
155+
libgcc.a ( * )
156+
}
157+
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.ARM.attributes 0 : { *(.ARM.attributes) }
159+
}

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