mirror of
https://bitbucket.org/librepilot/librepilot.git
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ab4e15e9aa
CAREFULL: the heap section need to be the last section in RAM to avoid overwritting data... Tested with GCC 4.5.2 this gives 1K of free bytes usable in heap right away (including the 200 bytes saved just by using the new gcc). This does not include any code re-org yet!
146 lines
4.1 KiB
Plaintext
146 lines
4.1 KiB
Plaintext
/* This is the size of the stack for all FreeRTOS IRQs */
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_irq_stack_size = 0x180;
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/* This is the size of the stack for early init: life span is until scheduler starts */
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_init_stack_size = 0x80;
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/* Stub out these functions since we don't use them anyway */
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PROVIDE ( vPortSVCHandler = 0 ) ;
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PROVIDE ( xPortPendSVHandler = 0 ) ;
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PROVIDE ( xPortSysTickHandler = 0 ) ;
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PROVIDE(pios_board_info_blob = ORIGIN(BD_INFO));
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_estack = 0x20004FF0;
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/* Section Definitions */
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SECTIONS
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{
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.text :
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{
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PROVIDE (pios_isr_vector_table_base = .);
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KEEP(*(.isr_vector .isr_vector.*))
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*(.text .text.* .gnu.linkonce.t.*)
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*(.glue_7t) *(.glue_7)
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*(.rodata .rodata* .gnu.linkonce.r.*)
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} > FLASH
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/* init sections */
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.initcalluavobj.init :
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{
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. = ALIGN(4);
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__uavobj_initcall_start = .;
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KEEP(*(.initcalluavobj.init))
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. = ALIGN(4);
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__uavobj_initcall_end = .;
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} >FLASH
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.ARM.extab :
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{
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*(.ARM.extab* .gnu.linkonce.armextab.*)
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} > FLASH
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.ARM.exidx :
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{
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*(.ARM.exidx* .gnu.linkonce.armexidx.*)
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} > FLASH
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. = ALIGN(4);
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_etext = .;
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_sidata = .;
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/*
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* This stack is used both as the initial sp during early init as well as ultimately
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* being used as the STM32's MSP (Main Stack Pointer) which is the same stack that
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* is used for _all_ interrupt handlers. The end of this stack should be placed
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* against the lowest address in RAM so that a stack overrun results in a hard fault
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* at the first access beyond the end of the stack.
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*/
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.irq_stack :
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{
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. = ALIGN(4);
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_irq_stack_end = . ;
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. = . + _irq_stack_size ;
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. = ALIGN(4);
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_irq_stack_top = . - 4 ;
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. = ALIGN(4);
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} > SRAM
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.data : AT (_etext)
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{
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_sdata = .;
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*(.data .data.*)
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. = ALIGN(4);
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_edata = . ;
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} > SRAM
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/* .bss section which is used for uninitialized data */
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.bss (NOLOAD) :
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{
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_sbss = . ;
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*(.bss .bss.*)
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*(COMMON)
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. = ALIGN(4);
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_ebss = . ;
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} > SRAM
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.heap (NOLOAD) :
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{
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_sheap = . ;
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_sheap_pre_rtos = . ;
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*(.heap)
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. = ALIGN(4);
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_eheap = . ;
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_eheap_pre_rtos = . ;
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_init_stack_end = . ;
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_sheap_post_rtos = . ;
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. = . + _init_stack_size ;
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. = ALIGN(4);
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_eheap_post_rtos = . ;
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_init_stack_top = . - 4 ;
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} > SRAM
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/* keep the heap section at the end of the SRAM */
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/* this will allow to claim the remaining bytes not used
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/* at run time! (done by the reset vector).
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. = ALIGN(4);
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_end = . ;
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/* Stabs debugging sections. */
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.stab 0 : { *(.stab) }
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.stabstr 0 : { *(.stabstr) }
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.stab.excl 0 : { *(.stab.excl) }
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.stab.exclstr 0 : { *(.stab.exclstr) }
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.stab.index 0 : { *(.stab.index) }
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.stab.indexstr 0 : { *(.stab.indexstr) }
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.comment 0 : { *(.comment) }
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/* DWARF debug sections.
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Symbols in the DWARF debugging sections are relative to the beginning
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of the section so we begin them at 0. */
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/* DWARF 1 */
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.debug 0 : { *(.debug) }
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.line 0 : { *(.line) }
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/* GNU DWARF 1 extensions */
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.debug_srcinfo 0 : { *(.debug_srcinfo) }
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.debug_sfnames 0 : { *(.debug_sfnames) }
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/* DWARF 1.1 and DWARF 2 */
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.debug_aranges 0 : { *(.debug_aranges) }
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.debug_pubnames 0 : { *(.debug_pubnames) }
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/* DWARF 2 */
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.debug_info 0 : { *(.debug_info .gnu.linkonce.wi.*) }
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.debug_abbrev 0 : { *(.debug_abbrev) }
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.debug_line 0 : { *(.debug_line) }
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.debug_frame 0 : { *(.debug_frame) }
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.debug_str 0 : { *(.debug_str) }
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.debug_loc 0 : { *(.debug_loc) }
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.debug_macinfo 0 : { *(.debug_macinfo) }
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/* SGI/MIPS DWARF 2 extensions */
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.debug_weaknames 0 : { *(.debug_weaknames) }
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.debug_funcnames 0 : { *(.debug_funcnames) }
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.debug_typenames 0 : { *(.debug_typenames) }
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.debug_varnames 0 : { *(.debug_varnames) }
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}
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