4164f58e46
Modify the linker script to move the unique GNU information in section .note.gnu.build-id after the .multiboot section. This prevents the mulitboot header being pushed beyond the 8k position in the kernel image.
57 lines
1.4 KiB
Plaintext
57 lines
1.4 KiB
Plaintext
/* The bootloader will look at this image and start execution at the symbol
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designated as the entry point. */
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ENTRY(_start)
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/* Tell where the various sections of the object files will be put in the final
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kernel image. */
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SECTIONS
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{
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/* Begin putting sections at 1 MiB, a conventional place for kernels to be
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loaded at by the bootloader. */
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. = 1M;
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/* First put the multiboot header, as it is required to be put very early
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early in the image or the bootloader won't recognize the file format.
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Next we'll put the .text section. */
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.text BLOCK(4K) : ALIGN(4K)
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{
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*(.multiboot)
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*(.text)
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}
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/* Make sure the GNU notes information is placed after .text. Failure to
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to do so may push the GRUB multiboot information beyond the first 8k
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and GRUB will not identify this kernel as multiboot capable.
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Alternative to this is to compile the final binary with this linker
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option to exclude this unqiue header:
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-Wl,--build-id=none */
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.note.gnu.build-id BLOCK(4K) : ALIGN(4K)
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{
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*(.note.gnu.build-id)
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}
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/* Read-only data. */
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.rodata BLOCK(4K) : ALIGN(4K)
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{
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*(.rodata)
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}
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/* Read-write data (initialized) */
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.data BLOCK(4K) : ALIGN(4K)
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{
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*(.data)
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}
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/* Read-write data (uninitialized) and stack */
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.bss BLOCK(4K) : ALIGN(4K)
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{
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*(COMMON)
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*(.bss)
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*(.bootstrap_stack)
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}
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/* The compiler may produce other sections, by default it will put them in
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a segment with the same name. Simply add stuff here as needed. */
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}
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