mirror of
https://github.com/xomboverlord/xomb-bare-bones.git
synced 2026-01-11 18:33:15 +01:00
126 lines
2.1 KiB
Plaintext
126 lines
2.1 KiB
Plaintext
/*
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linker.ld
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* This script is given as the only script to the linker
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* Will map boot.S to LMA, and then everything else
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will be linked to the VMA and mapped at the LMA
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* _etext, _edata, _end are defined here
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*/
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/* KERNEL LINK LOCATIONS
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these are the locations to map to
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they need to be set within boot.h
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as well
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*/
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kernel_VMA = 0xffffffff80000000;
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kernel_LMA = 0x100000;
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/* start from the entry point */
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ENTRY(_start)
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SECTIONS
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{
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/* link from LMA */
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. = kernel_LMA;
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_boot = .;
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/* boot.S is ran in linear addresses */
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.text_boot :
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{
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dsss_objs/G/kernel.arch.x86_64.boot.boot.o (.text)
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}
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_eboot = .;
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/* The following is for the trampoline code, if and when
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* multiprocessor support will be necessary.
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*/
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/* PROVIDE(_trampoline = .);
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.text_trampoline ALIGN(0x1000) :
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{
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dsss_objs/G/kernel.arch.x86_64.boot.trampoline.o (.text)
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}
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PROVIDE(_etrampoline = .); */
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/* link from VMA */
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. = . + kernel_VMA;
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_text = .;
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PROVIDE(_kernel = .);
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PROVIDE(_kernelBase = kernel_VMA);
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/* the rest of the code links to higher memory */
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.text : AT(ADDR(.text) - kernel_VMA + kernel_LMA)
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{
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code = .;
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*(.text)
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*(.text*)
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/* read only data */
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*(.rodata*)
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*(.rdata*)
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. = ALIGN(4096);
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}
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PROVIDE(_ekernel = .);
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/* _etext defined */
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PROVIDE (_etext = .);
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_data = .;
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/* data section */
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.data : AT(ADDR(.data) - kernel_VMA + kernel_LMA)
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{
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data = .;
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*(.data)
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/* constructors and deconstructors
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(if needed, doesn't hurt) */
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start_ctors = .;
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*(.ctor*)
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end_ctors = .;
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start_dtors = .;
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*(.dtor*)
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end_dtors = .;
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. = ALIGN(4096);
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}
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/* _edata defined */
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_edata = .; PROVIDE (edata = .);
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/* static code */
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.bss : AT(ADDR(.bss) - kernel_VMA + kernel_LMA)
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{
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*(.bss)
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. = ALIGN(4096);
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}
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/* */
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.ehframe : AT(ADDR(.ehframe) - kernel_VMA + kernel_LMA)
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{
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ehframe = .;
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*(.ehframe)
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. = ALIGN(4096);
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}
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/* _end defined */
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_end = .; PROVIDE (end = .);
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}
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