On 13.10.18 12:40, Heinrich Schuchardt wrote: > Hello Alex, hello Simon, > > in arch/arm/lib/elf_aarch64_efi.lds we merge the .bss section into the > .data section with a comment by Simon: > > "The EFI loader doesn't seem to like a .bss section, so we stick it into > .data". > > Real live EFI binaries like iPXE's snp.efi have a .bss section: > > Number of Sections 6 > Section[0] .text > Section[1] .rodata > Section[2] .data > Section[3] .bss > Section[4] .reloc > Section[5] .debug > > Do you remember what the exact problem was with .bss sections? > > .bss sections have to be initialized after relocation. I could not find > any code relating to this in efi_image_loader.c. Did I miss it?
.bss usually gets initialized by crt0 which is part of the target .efi binary. Maybe our efi crt0 is missing .bss initialization? Alex _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de https://lists.denx.de/listinfo/u-boot
