1MEMORY 2{ 3 RAM (xrw) : ORIGIN = 0x00000000, LENGTH = 0x008000 /* 32 KB */ 4} 5 6SECTIONS { 7 /* The program code and other data goes into FLASH */ 8 .text : 9 { 10 . = ALIGN(4); 11 *(.text) /* .text sections (code) */ 12 *(.text*) /* .text* sections (code) */ 13 *(.rodata) /* .rodata sections (constants, strings, etc.) */ 14 *(.rodata*) /* .rodata* sections (constants, strings, etc.) */ 15 *(.srodata) /* .rodata sections (constants, strings, etc.) */ 16 *(.srodata*) /* .rodata* sections (constants, strings, etc.) */ 17 _etext = .; /* define a global symbol at end of code */ 18 _sidata = _etext; /* This is used by the startup in order to initialize the .data secion */ 19 } >RAM 20 21 22 /* This is the initialized data section 23 The program executes knowing that the data is in the RAM 24 but the loader puts the initial values in the ROM (inidata). 25 It is one task of the startup to copy the initial values from ROM to RAM. */ 26 .data : AT ( _sidata ) 27 { 28 . = ALIGN(4); 29 _sdata = .; /* create a global symbol at data start; used by startup code in order to initialise the .data section in RAM */ 30 _ram_start = .; /* create a global symbol at ram start for garbage collector */ 31 . = ALIGN(4); 32 *(.data) /* .data sections */ 33 *(.data*) /* .data* sections */ 34 *(.sdata) /* .sdata sections */ 35 *(.sdata*) /* .sdata* sections */ 36 . = ALIGN(4); 37 _edata = .; /* define a global symbol at data end; used by startup code in order to initialise the .data section in RAM */ 38 } >RAM 39 40 /* Uninitialized data section */ 41 .bss : 42 { 43 . = ALIGN(4); 44 _sbss = .; /* define a global symbol at bss start; used by startup code */ 45 *(.bss) 46 *(.bss*) 47 *(.sbss) 48 *(.sbss*) 49 *(COMMON) 50 51 . = ALIGN(4); 52 _ebss = .; /* define a global symbol at bss end; used by startup code */ 53 } >RAM 54 55 /* this is to define the start of the heap, and make sure we have a minimum size */ 56 .heap : 57 { 58 . = ALIGN(4); 59 _heap_start = .; /* define a global symbol at heap start */ 60 } >RAM 61} 62