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BaseTools: AArch64: use explicit linker scripts Instead of relying on the builtin linker script of GNU ld, which may vary based on binutils version (which is not tightly coupled to the GCC version) and linker command line options, introduce a linker script for AArch64 to be used by all GCC/binutils versions. The script is laid out such that two ELF sections .text and .data are created that map onto the PE/COFF with the same names. By aligning .data to the minimum alignment of .text, and by not adding any additional padding -which is what LD's builtin linker script does- the relative offset between .text and .data is retained after the PE/COFF conversion. This should prevent problems with debuggers and other tooling that are ELF based. Also provided is an overlay linker script that increases the alignment of .text and .data to 64 KB. This is intended for DXE_RUNTIME_DRIVER modules, to make them compatible with the newly introduced Properties Table feature. Contributed-under: TianoCore Contribution Agreement 1.0 Signed-off-by: Ard Biesheuvel <ard.biesheuvel@linaro.org> Reviewed-by: Olivier Martin <Olivier.Martin@arm.com> git-svn-id: https://svn.code.sf.net/p/edk2/code/trunk/edk2@17824 6f19259b-4bc3-4df7-8a09-765794883524
2015-07-06 17:57:50 +02:00
SECTIONS {
.text : ALIGN(0x10000) { }
.data : ALIGN(0x10000) { }
}