Signed-off-by: Sergey Bugaev <buga...@gmail.com> --- sysdeps/mach/hurd/x86_64/htl/pt-machdep.c | 73 +++++++++++++++++++++++ 1 file changed, 73 insertions(+) create mode 100644 sysdeps/mach/hurd/x86_64/htl/pt-machdep.c
diff --git a/sysdeps/mach/hurd/x86_64/htl/pt-machdep.c b/sysdeps/mach/hurd/x86_64/htl/pt-machdep.c new file mode 100644 index 00000000..69094d3b --- /dev/null +++ b/sysdeps/mach/hurd/x86_64/htl/pt-machdep.c @@ -0,0 +1,73 @@ +/* Machine dependent pthreads code. Hurd/x86_64 version. + Copyright (C) 2000-2023 Free Software Foundation, Inc. + This file is part of the GNU C Library. + + The GNU C Library is free software; you can redistribute it and/or + modify it under the terms of the GNU Lesser General Public + License as published by the Free Software Foundation; either + version 2.1 of the License, or (at your option) any later version. + + The GNU C Library is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU + Lesser General Public License for more details. + + You should have received a copy of the GNU Lesser General Public + License along with the GNU C Library; if not, see + <https://www.gnu.org/licenses/>. */ + +#include <errno.h> +#include <assert.h> + +#include <mach.h> +#include <mach/machine/thread_status.h> +#include <mach/machine/mach_i386.h> +#include <mach/mig_errors.h> +#include <mach/thread_status.h> + +int +__thread_set_pcsptp (thread_t thread, + int set_ip, void *ip, + int set_sp, void *sp, + int set_tp, void *tp) +{ + error_t err; + struct i386_thread_state state; + struct i386_fsgs_base_state fsgs_state; + mach_msg_type_number_t state_count; + + state_count = i386_THREAD_STATE_COUNT; + + err = __thread_get_state (thread, i386_REGS_SEGS_STATE, + (thread_state_t) &state, &state_count); + if (err) + return err; + assert (state_count == i386_THREAD_STATE_COUNT); + + if (set_sp) + state.ursp = (uintptr_t) sp; + if (set_ip) + state.rip = (uintptr_t) ip; + + err = __thread_set_state (thread, i386_REGS_SEGS_STATE, + (thread_state_t) &state, i386_THREAD_STATE_COUNT); + if (err) + return err; + + if (set_tp) + { + state_count = i386_FSGS_BASE_STATE_COUNT; + err = __thread_get_state (thread, i386_FSGS_BASE_STATE, + (thread_state_t) &fsgs_state, &state_count); + if (err) + return err; + assert (state_count == i386_FSGS_BASE_STATE_COUNT); + fsgs_state.fs_base = (uintptr_t) tp; + err = __thread_set_state (thread, i386_FSGS_BASE_STATE, + (thread_state_t) &fsgs_state, state_count); + if (err) + return err; + } + + return 0; +} -- 2.39.2
