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https://bitbucket.org/librepilot/librepilot.git
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65cf467ca4
- create linker section for those <module>Initialize() - later this list will incorporate parameters as well. (this probably will be more a OP feature to swap/remove/delete module on the fly. - this is not done at compile time anymore by Makefile. - this will allow us to have control on the module start at run-time (not implemented but build the ground for it). - this simplify the startup (Part of code re-org). - this change does not affect sim_posix and win32 (since they don't need that) - ensure it's compiling for PiOS.posix - port to PiOS.win32 but not tested (not compiled) - tested on CC - compile on OP. - this free ~200 bytes. - current avalable bytes (is we keep the same remaining bytes on the stack than before) is easily passed the 1.2Ko mark on CC with new gcc (4.5.2) - this does not include init-reorg for each module (I still think more can be freed)
158 lines
4.4 KiB
Plaintext
158 lines
4.4 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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/* there is probably a way to get that from the MEMORY section */
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_eram = 0x20005000;
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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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/* module sections */
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.initcallmodule.init :
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{
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. = ALIGN(4);
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__module_initcall_start = .;
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KEEP(*(.initcallmodule.init))
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. = ALIGN(4);
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__module_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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