Hi, Your patch works fine for my laptop too.
Thank you. Masanobu SAITOH <msai...@execsw.org> writes: > On 2019/12/27 1:55, Emmanuel Dreyfus wrote: >> On Wed, Dec 25, 2019 at 05:05:11PM +0900, Masanobu SAITOH wrote: >>>>> After this change, amd64 kernel does not boot on my HP Spectre x360 >>>>> 13-inch ae019TU laptop with pure UEFI boot mode. >>> I have a UEFI boot machine and it also doesn't boot well. >> >> Please try the attached patch. >> >> It adds the -n flag to ld, which disable auto-alignment of sections >> in the file. I undestand alignement is highly desirable for userland >> programs that may be mapped from file, but useless for the kernel, >> which is just readen once by the bootloader. >> >> Without auto-alignement, the .text segment starts right after the >> ELF headers. This means the multiboot header can go in .text and >> stay below 32k (as required by the multiboot specification). There >> is no need for a multiboot section for that, and therefore no >> need to modify the linker script. >> >> A side effect is that the kernel file shrinks of 2 MB, because there >> is not an alignement hole between ELF headers and the .text section >> anymore. >> >> My patch also enable the MULTIBOOT option so that we can check >> nothing gets broken with it. You can also try with the option >> disabled, of course. >> > > Both with and without MULTIBOOT works fine. No any hangup/panic. > > Thanks. > > -- > ----------------------------------------------- > SAITOH Masanobu (msai...@execsw.org > msai...@netbsd.org) -- Ryo ONODERA // r...@tetera.org PGP fingerprint = 82A2 DC91 76E0 A10A 8ABB FD1B F404 27FA C7D1 15F3
