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/*
* Linker script for the Boot ROM.
*
* Copyright 2020 Google LLC
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
MEMORY
{
rom (rx) : ORIGIN = 0x00000000, LENGTH = 32K
ram (a!rx) : ORIGIN = 0xFFFB0000, LENGTH = 256K
}
SECTIONS
{
/* Vectors are loaded into ROM, and copied into SRAM. */
.text.vectors : {
*(.text.vectors)
. = 0x100;
} >rom AT>ram
/* The rest of the code follows the vectors, but is not copied. */
.text : {
*(.text .text.*)
*(.rodata .rodata.*)
. = ALIGN(32);
_etext = .;
} >rom
/*
* Data follows the code in ROM, and is copied after the vectors in RAM.
* 32-byte aligned so we can use simple and fast copy loops.
*/
.data : {
_data = .;
*(.data.rom_status)
*(.data .data.*)
. = ALIGN(32);
_edata = .;
} >rom AT>ram
/* BSS lives in RAM, after the data section. */
.bss : {
*(.bss .bss.*)
. = ALIGN(32);
_end = .;
} >ram
}
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