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systemd/tools/elf2efi.lds
Luca Boccassi e78fc81d30 elf2efi: ensure minimum gap between .text and other sections
When linking an almost empty binary the linker can merged .text with
a later section, creating a RWE segment, that then it rejects.
2023-05-24 11:06:36 +01:00

59 lines
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SECTIONS {
__ImageBase = .;
/* We skip the first page because the space will be occupied by the PE headers after conversion. */
. = CONSTANT(MAXPAGESIZE);
.text ALIGN(CONSTANT(MAXPAGESIZE)) : {
*(.text .text.*)
}
/* When linking a minimal addon stub, the linker can merge .text and .dynsym, creating a RWE
* segment, and then rejects it. Ensure there's a gap so that we end up with two separate segments.
* The alignments for the next sections are only applied if the section exists, so they are not
* enough, and we need to have this unconditional one. */
. = ALIGN(CONSTANT(MAXPAGESIZE));
.rodata ALIGN(CONSTANT(MAXPAGESIZE)) : {
*(.rodata .rodata.*)
*(.srodata .srodata.*)
}
.data ALIGN(CONSTANT(MAXPAGESIZE)) : {
*(.data .data.*)
*(.sdata .sdata.*)
*(.got .got.*)
*(.got.plt .got.plt.*)
/* EDK2 says some firmware cannot handle BSS sections properly. */
*(.bss .bss.*)
*(.sbss .sbss.*)
*(COMMON)
}
.sdmagic ALIGN(CONSTANT(MAXPAGESIZE)) : { *(.sdmagic) }
.osrel ALIGN(CONSTANT(MAXPAGESIZE)) : { *(.osrel) }
.sbat ALIGN(CONSTANT(MAXPAGESIZE)) : { *(.sbat) }
/* These are used for PE conversion and then discarded. */
.dynsym : { *(.dynsym) }
.dynstr : { *(.dynstr) }
.dynamic : { *(.dynamic) }
.rel.dyn : { *(.rel.dyn) }
.rela.dyn : { *(.rela.dyn) }
/* These aren't needed and could be discarded. Just in case that they're useful to the debugger
* we keep them, but move them out of the way to keep the PE binary more compact. */
.ARM.exidx : { *(.ARM.exidx) }
.eh_frame : { *(.eh_frame) }
.eh_frame_hdr : { *(.eh_frame_hdr) }
.gnu.hash : { *(.gnu.hash) }
.hash : { *(.hash) }
.note.gnu.build-id : { *(.note.gnu.build-id ) }
/DISCARD/ : {
*(.ARM.attributes)
*(.comment)
*(.note.*)
*(.riscv.attributes)
}
}