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[RFC PATCH glibc 22/34] htl: Implement thread_set_pcsptp for x86_64
From: |
Sergey Bugaev |
Subject: |
[RFC PATCH glibc 22/34] htl: Implement thread_set_pcsptp for x86_64 |
Date: |
Sun, 19 Mar 2023 18:10:05 +0300 |
Signed-off-by: Sergey Bugaev <bugaevc@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
- [RFC PATCH glibc 11/34] mach, hurd: Drop __libc_lock_self0, (continued)
- [RFC PATCH glibc 11/34] mach, hurd: Drop __libc_lock_self0, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 08/34] hurd: Disable O_TRUNC and FS_RETRY_MAGICAL in rtld, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 17/34] hurd: Implement x86_64/intr-msg.h, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 16/34] hurd: Add sys/ucontext.h and sigcontext.h for x86_64, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 18/34] hurd: Port trampoline.c to x86_64, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 19/34] hurd: Move a couple of singal-related files to x86, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 24/34] hurd: Only check for TLS initialization inside rtld or in static builds, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 21/34] x86_64: Add rtld-stpncpy & rtld-strncpy, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 23/34] elf: Stop including tls.h in ldsodefs.h, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 25/34] hurd: Improve reply port handling when exiting signal handlers, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 22/34] htl: Implement thread_set_pcsptp for x86_64,
Sergey Bugaev <=
- [RFC PATCH glibc 29/34] hurd: Add vm_param.h for x86_64, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 31/34] hurd: Microoptimize _hurd_self_sigstate (), Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 26/34] hurd: Remove __hurd_local_reply_port, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 20/34] htl: Add tcb-offsets.sym for x86_64, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 27/34] hurd: Don't leak __hurd_reply_port0, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 28/34] hurd: Implement _hurd_longjmp_thread_state for x86_64, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 30/34] hurd: Implement longjmp for x86_64, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 32/34] hurd: Implement sigreturn for x86_64, Sergey Bugaev, 2023/03/19
- [RFC PATCH glibc 33/34] hurd: Create abilist files for lib{mach, hurd}user, Sergey Bugaev, 2023/03/19