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/* Tell the linker that we want an aarch64 ELF64 output file */
OUTPUT_FORMAT(elf64-littleaarch64)
OUTPUT_ARCH(aarch64)
/* We want the symbol main to be our entry point */
ENTRY(main)
/* Define the program headers we want so the bootloader gives us the right */
/* MMU permissions */
PHDRS
{
text PT_LOAD FLAGS((1 << 0) | (1 << 2)) ; /* Execute + Read */
rodata PT_LOAD FLAGS((1 << 2)) ; /* Read only */
data PT_LOAD FLAGS((1 << 1) | (1 << 2)) ; /* Write + Read */
dynamic PT_DYNAMIC FLAGS((1 << 1) | (1 << 2)) ; /* Dynamic PHDR for relocations */
}
SECTIONS
{
/* We wanna be placed in the topmost 2GiB of the address space, for optimisations */
/* and because that is what the Limine spec mandates. */
/* Any address in this region will do, but often 0xffffffff80000000 is chosen as */
/* that is the beginning of the region. */
. = 0xffffffff80000000;
.text : {
*(.text .text.*)
} :text
/* Move to the next memory page for .rodata */
. += CONSTANT(MAXPAGESIZE);
.rodata : {
*(.rodata .rodata.*)
} :rodata
.drivers : {
__drivers_init_start = .;
*(.drivers .drivers)
__drivers_init_end = .;
} :rodata
/* Move to the next memory page for .data */
. += CONSTANT(MAXPAGESIZE);
.data : {
*(.data .data.*)
} :data
/* Dynamic section for relocations, both in its own PHDR and inside data PHDR */
.dynamic : {
*(.dynamic)
} :data :dynamic
/* NOTE: .bss needs to be the last thing mapped to :data, otherwise lots of */
/* unnecessary zeros will be written to the binary. */
/* If you need, for example, .init_array and .fini_array, those should be placed */
/* above this. */
.bss : {
*(.bss .bss.*)
*(COMMON)
} :data
/* -- Cache line alignment -- */
. = ALIGN(64);
.data.cacheline_aligned : {
*(.data.cacheline_aligned)
}
/* Discard .note.* and .eh_frame since they may cause issues on some hosts. */
/DISCARD/ : {
*(.eh_frame)
*(.note .note.*)
}
}
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