diff options
Diffstat (limited to 'ports/bare-arm/stm32f405.ld')
| -rw-r--r-- | ports/bare-arm/stm32f405.ld | 93 |
1 files changed, 17 insertions, 76 deletions
diff --git a/ports/bare-arm/stm32f405.ld b/ports/bare-arm/stm32f405.ld index dd688a024..33a5502d6 100644 --- a/ports/bare-arm/stm32f405.ld +++ b/ports/bare-arm/stm32f405.ld @@ -1,117 +1,58 @@ -/* - GNU linker script for STM32F405 -*/ +/* GNU linker script for STM32F405 */ -/* Specify the memory areas */ MEMORY { FLASH (rx) : ORIGIN = 0x08000000, LENGTH = 0x100000 /* entire flash, 1 MiB */ - FLASH_ISR (rx) : ORIGIN = 0x08000000, LENGTH = 0x004000 /* sector 0, 16 KiB */ - FLASH_TEXT (rx) : ORIGIN = 0x08020000, LENGTH = 0x080000 /* sectors 5,6,7,8, 4*128KiB = 512 KiB (could increase it more) */ - CCMRAM (xrw) : ORIGIN = 0x10000000, LENGTH = 0x010000 /* 64 KiB */ RAM (xrw) : ORIGIN = 0x20000000, LENGTH = 0x020000 /* 128 KiB */ } -/* top end of the stack */ _estack = ORIGIN(RAM) + LENGTH(RAM); -/* RAM extents for the garbage collector */ -_ram_end = ORIGIN(RAM) + LENGTH(RAM); -_heap_end = 0x2001c000; /* tunable */ - -/* define output sections */ SECTIONS { - /* The startup code goes first into FLASH */ .isr_vector : { . = ALIGN(4); - KEEP(*(.isr_vector)) /* Startup code */ - + KEEP(*(.isr_vector)) . = ALIGN(4); - } >FLASH_ISR + } >FLASH - /* The program code and other data goes into FLASH */ .text : { . = ALIGN(4); - *(.text) /* .text sections (code) */ - *(.text*) /* .text* sections (code) */ - *(.rodata) /* .rodata sections (constants, strings, etc.) */ - *(.rodata*) /* .rodata* sections (constants, strings, etc.) */ - /* *(.glue_7) */ /* glue arm to thumb code */ - /* *(.glue_7t) */ /* glue thumb to arm code */ - + *(.text) + *(.text*) + *(.rodata) + *(.rodata*) . = ALIGN(4); - _etext = .; /* define a global symbol at end of code */ - _sidata = _etext; /* This is used by the startup in order to initialize the .data secion */ - } >FLASH_TEXT - - /* - .ARM.extab : - { - *(.ARM.extab* .gnu.linkonce.armextab.*) + _etext = .; + _sidata = _etext; } >FLASH - .ARM : - { - __exidx_start = .; - *(.ARM.exidx*) - __exidx_end = .; - } >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); - _sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */ - _ram_start = .; /* create a global symbol at ram start for garbage collector */ - *(.data) /* .data sections */ - *(.data*) /* .data* sections */ - + _sdata = .; + *(.data) + *(.data*) . = ALIGN(4); - _edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */ + _edata = .; } >RAM - /* Uninitialized data section */ .bss : { . = ALIGN(4); - _sbss = .; /* define a global symbol at bss start; used by startup code */ + _sbss = .; *(.bss) *(.bss*) *(COMMON) - . = ALIGN(4); - _ebss = .; /* define a global symbol at bss end; used by startup code */ + _ebss = .; } >RAM - /* this is to define the start of the heap, and make sure we have a minimum size */ .heap : { - . = ALIGN(4); - _heap_start = .; /* define a global symbol at heap start */ + . = ALIGN(8); + _heap_start = .; } >RAM - - /* this just checks there is enough RAM for the stack */ - .stack : - { - . = ALIGN(4); - } >RAM - - /* Remove information from the standard libraries */ - /* - /DISCARD/ : - { - libc.a ( * ) - libm.a ( * ) - libgcc.a ( * ) - } - */ - - .ARM.attributes 0 : { *(.ARM.attributes) } } |