From: Ilias Apalodimas ilias.apalodimas@linaro.org
When creating EFI binaries, the alignment of the text section isn't correctly factored in. As a result trying to load signed EFI binaries throws an error with:
efi_image_region_add() efi_image_region_add: new region already part of another Image not authenticated
Running the binary through sbverify has a similar warning sbverify ./lib/efi_loader/helloworld.efi warning: gap in section table: .text : 0x00001000 - 0x00001c00, .data : 0x00002000 - 0x00002200, gaps in the section table may result in different checksums warning: data remaining[7680 vs 12720]: gaps between PE/COFF sections? .....
If we include the alignment in the text section, the signed binary boots fine, and the relevant sbverify warning goes away sbverify ./lib/efi_loader/helloworld.efi warning: data remaining[8704 vs 12720]: gaps between PE/COFF sections? .....
We should look into the remaining warning at some point as well regarding the gaps between PE/COFF sections.
Signed-off-by: Ilias Apalodimas ilias.apalodimas@linaro.org Reviewed-by: Heinrich Schuchardt heinrich.schuchardt@canonical.com --- v2: no change --- arch/arm/lib/elf_aarch64_efi.lds | 2 +- 1 file changed, 1 insertion(+), 1 deletion(-)
diff --git a/arch/arm/lib/elf_aarch64_efi.lds b/arch/arm/lib/elf_aarch64_efi.lds index 5dd98091698..e382254a6cf 100644 --- a/arch/arm/lib/elf_aarch64_efi.lds +++ b/arch/arm/lib/elf_aarch64_efi.lds @@ -32,9 +32,9 @@ SECTIONS .rela.plt : { *(.rela.plt) } .rela.got : { *(.rela.got) } .rela.data : { *(.rela.data) *(.rela.data*) } + . = ALIGN(4096); _etext = .; _text_size = . - _text; - . = ALIGN(4096); .data : { _data = .; *(.sdata)