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5576e9c4c5
Before this change, our dynamic linker's global constructor handler relied on the GNU linker implicitly including the content of `.ctors` section inside `.init_array`. The mold linker does not do this, so global constructors would fail to be called in the mold-built userland. There is no point in sticking to `.ctors`, as most other systems already use the superior `.init_array` scheme. This commit changes the kernel linker script to not discard this new section, and enables it by default in our toolchain.
113 lines
2.4 KiB
Plaintext
113 lines
2.4 KiB
Plaintext
#include <AK/Platform.h>
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ENTRY(init)
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#define PF_X 0x1
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#define PF_W 0x2
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#define PF_R 0x4
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PHDRS
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{
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elf_headers PT_LOAD FILEHDR PHDRS FLAGS(PF_R) ;
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super_pages PT_LOAD FLAGS(PF_R | PF_W) ;
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text PT_LOAD FLAGS(PF_R | PF_X) ;
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data PT_LOAD FLAGS(PF_R | PF_W) ;
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bss PT_LOAD FLAGS(PF_R | PF_W) ;
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dynamic_segment PT_LOAD FLAGS(PF_R | PF_W) ;
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dynamic PT_DYNAMIC FLAGS(PF_R | PF_W) ;
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ksyms PT_LOAD FLAGS(PF_R) ;
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}
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SECTIONS
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{
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start_of_kernel_image = .;
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.elf_headers (SIZEOF_HEADERS) : AT (ADDR(.elf_headers) + SIZEOF_HEADERS)
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{
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start_of_elf_headers = .;
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} :elf_headers
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.super_pages ALIGN(4K) (NOLOAD) : AT (ADDR(.super_pages))
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{
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*(.super_pages)
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} :super_pages
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.text ALIGN(4K) : AT (ADDR(.text))
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{
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start_of_kernel_text = .;
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start_of_safemem_text = .;
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KEEP(*(.text.safemem))
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end_of_safemem_text = .;
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start_of_safemem_atomic_text = .;
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KEEP(*(.text.safemem.atomic))
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end_of_safemem_atomic_text = .;
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*(.text*)
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} :text
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.unmap_after_init ALIGN(4K) : AT (ADDR(.unmap_after_init))
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{
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start_of_unmap_after_init = .;
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*(.unmap_after_init*);
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end_of_unmap_after_init = .;
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end_of_kernel_text = .;
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} :text
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.rodata ALIGN(4K) : AT (ADDR(.rodata))
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{
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start_heap_ctors = .;
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*libkernel_heap.a:*(.ctors)
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*libkernel_heap.a:*(.init_array)
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end_heap_ctors = .;
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start_ctors = .;
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*(.ctors)
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*(.init_array)
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end_ctors = .;
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*(.rodata*)
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} :data
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.data ALIGN(4K) : AT (ADDR(.data))
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{
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start_of_kernel_data = .;
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*(.data*)
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end_of_kernel_data = .;
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} :data
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.ro_after_init ALIGN(4K) (NOLOAD) : AT(ADDR(.ro_after_init))
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{
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start_of_ro_after_init = .;
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*(.ro_after_init);
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end_of_ro_after_init = .;
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} :data
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.bss ALIGN(4K) (NOLOAD) : AT (ADDR(.bss))
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{
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start_of_kernel_bss = .;
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*(page_tables)
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*(COMMON)
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*(.bss*)
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end_of_kernel_bss = .;
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. = ALIGN(4K);
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*(.heap)
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} :bss
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.dynamic ALIGN(4K) : AT (ADDR(.dynamic))
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{
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*(.dynamic)
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} :dynamic_segment :dynamic
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.ksyms ALIGN(4K) : AT (ADDR(.ksyms))
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{
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start_of_kernel_ksyms = .;
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*(.kernel_symbols)
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end_of_kernel_ksyms = .;
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} :ksyms
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end_of_kernel_image = .;
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}
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