On Sun, Mar 19, 2023 at 11:13 PM Luca <l...@orpolo.org> wrote: > > How do you even attach gdb to qemu properly without racing against > > Mach starting up? qemu -S doesn't work (unlike on i386), since if you > > attach GDB immediately at startup, it freaks out about some message > > size mismatch, apparently related to the long mode switch. > > The only time I've seen this error was when using qemu-system-x86_64 to > debug a 32-bit kernel, or vice-versa.
This is the issue I was facing: https://wiki.osdev.org/QEMU_and_GDB_in_long_mode "Workaround 3: Connecting from GDB after long mode has been enabled" is how I've tried to work around this, but this _is_ racing against Mach startup. > > In the meantime, please try > > building my glibc branch with the hello world static executable and > > see if that works on your setup. > I might have missed it from the previous emails, do you have a git repo > I can pull from? Not a public one, no. But you should be able to 'git am' my patchset onto your local repo (that is how I test your and Flavio's patches before Samuel pushes them). If this is too inconvenient, I can attempt to set up a publically accessible glibc repo (with my patches included) on darnassus, but that would require some disk space and network traffic that Richard may not appreciate. (Isn't the git-over-email workflow "great"?) Sergey
