X-Git-Url: https://git.gag.com/?p=fw%2Faltos;a=blobdiff_plain;f=src%2Fmicropeak-v2.0%2Fmicropeak.ld;fp=src%2Fmicropeak-v2.0%2Fmicropeak.ld;h=77717e168e7eead5f15dda1fc291cb33a12853ce;hp=0000000000000000000000000000000000000000;hb=217d77dadbef4192d2f32e290a5c5f50159f2e0d;hpb=65bb93f69b2f420281b67d62a9ee3cf30874fb7c diff --git a/src/micropeak-v2.0/micropeak.ld b/src/micropeak-v2.0/micropeak.ld new file mode 100644 index 00000000..77717e16 --- /dev/null +++ b/src/micropeak-v2.0/micropeak.ld @@ -0,0 +1,123 @@ +/* + * Copyright © 2012 Keith Packard + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2 of the License, or + * (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, but + * WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + * General Public License for more details. + * + * You should have received a copy of the GNU General Public License along + * with this program; if not, write to the Free Software Foundation, Inc., + * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. + */ + +MEMORY { + rom (rx) : ORIGIN = 0x08001000, LENGTH = 20K + flash(rx) : ORIGIN = 0x08006000, LENGTH = 8K + ram (!w) : ORIGIN = 0x20000000, LENGTH = 6k - 128 + stack (!w) : ORIGIN = 0x20000000 + 6k - 128, LENGTH = 128 +} + +INCLUDE registers.ld + +EXTERN (stm_interrupt_vector) + +SECTIONS { + /* + * Rom contents + */ + + .interrupt ORIGIN(ram) : AT (ORIGIN(rom)) { + __interrupt_start__ = .; + __interrupt_rom__ = ORIGIN(rom); + *(.interrupt) /* Interrupt vectors */ + __interrupt_end__ = .; + } > ram + + .text ORIGIN(rom) + 0x100 : { + __text_start__ = .; + + /* Ick. What I want is to specify the + * addresses of some global constants so + * that I can find them across versions + * of the application. I can't figure out + * how to make gnu ld do that, so instead + * we just load the two files that include + * these defines in the right order here and + * expect things to 'just work'. Don't change + * the contents of those files, ok? + */ + ao_romconfig.o(.romconfig*) + ao_product.o(.romconfig*) + + *(.text*) /* Executable code */ + } > rom + + .ARM.exidx : { + *(.ARM.exidx* .gnu.linkonce.armexidx.*) + } > rom + + .rodata : { + *(.rodata*) /* Constants */ + } > rom + + __text_end__ = .; + + /* Boot data which must live at the start of ram so that + * the application and bootloader share the same addresses. + * This must be all uninitialized data + */ + .boot (NOLOAD) : { + __boot_start__ = .; + *(.boot) + . = ALIGN(4); + __boot_end__ = .; + } >ram + + /* Functions placed in RAM (required for flashing) + * + * Align to 8 bytes as that's what the ARM likes text + * segment alignments to be, and if we don't, then + * we end up with a mismatch between the location in + * ROM and the desired location in RAM. I don't + * entirely understand this, but at least this appears + * to work... + */ + + .textram BLOCK(8): { + __data_start__ = .; + *(.ramtext) + } >ram AT>rom + + /* Data -- relocated to RAM, but written to ROM + */ + .data : { + *(.data) /* initialized data */ + . = ALIGN(4); + __data_end__ = .; + } >ram AT>rom + + .bss : { + __bss_start__ = .; + *(.bss) + *(COMMON) + . = ALIGN(4); + __bss_end__ = .; + } >ram + + PROVIDE(end = .); + + PROVIDE(__flash__ = ORIGIN(flash)); + PROVIDE(__flash_end__ = ORIGIN(flash) + LENGTH(flash)); + + PROVIDE(__stack__ = ORIGIN(stack) + LENGTH(stack)); +} + +ENTRY(start); + +