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73 lines
1.4 KiB
Plaintext
73 lines
1.4 KiB
Plaintext
/* Copyright (C) 2021,2022 fef <owo@fef.moe>. All rights reserved. */
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OUTPUT_FORMAT("elf64-x86-64")
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ENTRY(_start)
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KERNBASE = 0xffffffff80000000; /* -2 GB */
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PAGE_SIZE = 4K;
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SECTIONS {
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. = CFG_KERN_ORIGIN;
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_image_start = . + KERNBASE;
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_image_start_phys = .;
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_kernel_start = . + KERNBASE;
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_kernel_start_phys = .;
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.multiboot.data : {
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. = ALIGN(8);
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KEEP(*(.multiboot.data))
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}
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.multiboot.text : {
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. = ALIGN(8);
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KEEP(*(.multiboot.text))
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}
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. += KERNBASE;
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/*
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* All sections from here on are page aligned so we can
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* set different access permissions for each of them
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*/
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.text ALIGN(PAGE_SIZE) : AT(ADDR(.text) - KERNBASE) {
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_text_start = .;
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/* put all ISRs into one contiguous region so the
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* stack unwinder knows when to stop unwinding */
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_isr_start = .;
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KEEP(*(.text.isr))
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_isr_end = .;
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*(.text .text.* .gnu.linkonce.t.*)
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_text_end = .;
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}
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.rodata ALIGN(PAGE_SIZE) : AT(ADDR(.rodata) - KERNBASE) {
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_rodata_start = .;
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*(.rodata .rodata.* .gnu.linkonce.r.*)
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_rodata_end = .;
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}
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.data ALIGN(PAGE_SIZE) : AT(ADDR(.data) - KERNBASE) {
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_data_start = .;
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*(.data .data.*)
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_data_end = .;
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}
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_kernel_end = .;
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_kernel_end_phys = . - KERNBASE;
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.bss ALIGN(PAGE_SIZE) : AT(ADDR(.bss) - KERNBASE) {
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_bss_start = .;
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*(COMMON)
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*(.bss)
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_bss_end = .;
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. = ALIGN(8);
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*(.bootstrap_stack)
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}
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_image_end = .;
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_image_end_phys = . - KERNBASE;
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}
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