This patch set contains three kind of changes: * changes for IPC on x86_64 (e.g. msg alignment, copyin/copyout) * 32-bit userland support on 64-bit kernel (e.g. exception stack alignment) * minor fixes and cleanup
This is just a preliminary version, not everything is working yet. I've tested this with a very minimal ramdisk I created, and I can see that /hurd/startup is launched, together with the auth and proc servers. Rumpdisk is not yet working, as the ds_device_intr_register() implementation is still missing for x86_64. I also tried using the ramdisk of a netinstall image, and the init scripts seem to hang at some point with messages like: task /bin/sh(1) deallocating a bogus port 4294967295, most probably a bug. task mkdir(10) deallocating a bogus port 4294967295, most probably a bug. I think most IPC issues should be addressed, although maybe it's not very optimized yet (especially the new copyinmsg/copyoutmsg). These patches are based on the previous work: https://mail.gnu.org/archive/html/bug-hurd/2022-04/msg00007.html https://mail.gnu.org/archive/html/bug-hurd/2022-02/msg00006.html Luca Dariz (15): fix rpc types for KERNEL_USER stubs simplify ipc_kmsg_copyout_body() usage fix argument passing to bootstrap modules compute mach port size from the corresponding type sign-extend mask in vm_map() with 32-bit userspace kmsg: fix msg body alignment fix host_info structure definition use port name type in mach_port_names() x86_64: fix exception stack alignment x86_64: expand and shrink messages in copy{in,out}msg routines update syscall signature with rpc_vm_* and mach_port_name_t fix warnings for 32 bit builds cleanup headers in printf.c hack vm memory object proxy creation for vm arrays enable syscalls on x86_64 device/cirbuf.c | 4 +- i386/i386/copy_user.h | 86 +++++++++++ i386/i386/debug_i386.c | 1 + i386/i386/pcb.c | 10 +- i386/i386/thread.h | 3 + i386/i386/trap.c | 4 + i386/i386at/biosmem.c | 2 - i386/i386at/com.c | 2 +- i386/i386at/mem.c | 1 + include/mach/host_info.h | 2 +- include/mach/mach_traps.h | 18 +-- include/mach/mach_types.defs | 16 +- include/mach/message.h | 11 ++ ipc/ipc_kmsg.c | 103 +++++++------ ipc/ipc_kmsg.h | 2 +- ipc/ipc_machdep.h | 12 +- ipc/ipc_mqueue.c | 5 +- ipc/mach_msg.c | 23 ++- ipc/mach_port.c | 12 +- kern/boot_script.c | 1 + kern/bootstrap.c | 22 ++- kern/bootstrap.h | 5 +- kern/exception.c | 1 + kern/ipc_host.c | 2 +- kern/ipc_mig.c | 78 +++++----- kern/ipc_mig.h | 58 ++++---- kern/ipc_tt.c | 6 +- kern/ipc_tt.h | 2 +- kern/printf.c | 4 +- kern/syscall_subr.c | 2 +- kern/syscall_subr.h | 2 +- kern/syscall_sw.c | 2 +- vm/memory_object_proxy.c | 5 + vm/vm_debug.c | 1 + vm/vm_map.c | 2 +- vm/vm_page.c | 2 - vm/vm_pageout.c | 2 - vm/vm_user.c | 5 + x86_64/Makefrag.am | 1 + x86_64/copy_user.c | 280 +++++++++++++++++++++++++++++++++++ x86_64/locore.S | 82 ---------- 41 files changed, 599 insertions(+), 283 deletions(-) create mode 100644 i386/i386/copy_user.h create mode 100644 x86_64/copy_user.c -- 2.30.2
