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[RFC PATCH glibc 28/34] hurd: Implement _hurd_longjmp_thread_state for x
From: |
Sergey Bugaev |
Subject: |
[RFC PATCH glibc 28/34] hurd: Implement _hurd_longjmp_thread_state for x86_64 |
Date: |
Sun, 19 Mar 2023 18:10:11 +0300 |
Signed-off-by: Sergey Bugaev <bugaevc@gmail.com>
---
sysdeps/mach/hurd/x86_64/longjmp-ts.c | 41 +++++++++++++++++++++++++++
1 file changed, 41 insertions(+)
create mode 100644 sysdeps/mach/hurd/x86_64/longjmp-ts.c
diff --git a/sysdeps/mach/hurd/x86_64/longjmp-ts.c
b/sysdeps/mach/hurd/x86_64/longjmp-ts.c
new file mode 100644
index 00000000..2c57d26a
--- /dev/null
+++ b/sysdeps/mach/hurd/x86_64/longjmp-ts.c
@@ -0,0 +1,41 @@
+/* Perform a `longjmp' on a Mach thread_state. x86_64 version.
+ Copyright (C) 1991-2023 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 <hurd/signal.h>
+#include <setjmp.h>
+#include <jmpbuf-offsets.h>
+#include <mach/thread_status.h>
+
+
+/* Set up STATE to do the equivalent of `longjmp (ENV, VAL);'. */
+
+void
+_hurd_longjmp_thread_state (void *state, jmp_buf env, int val)
+{
+ struct i386_thread_state *ts = state;
+
+ ts->rbx = env[0].__jmpbuf[JB_RBX];
+ ts->rbp = env[0].__jmpbuf[JB_RBP];
+ ts->r12 = env[0].__jmpbuf[JB_R12];
+ ts->r13 = env[0].__jmpbuf[JB_R13];
+ ts->r14 = env[0].__jmpbuf[JB_R14];
+ ts->r15 = env[0].__jmpbuf[JB_R15];
+ ts->ursp = env[0].__jmpbuf[JB_RSP];
+ ts->rip = env[0].__jmpbuf[JB_PC];
+ ts->rax = val ?: 1;
+}
--
2.39.2
- [RFC PATCH glibc 24/34] hurd: Only check for TLS initialization inside rtld or in static builds, (continued)
- [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, 2023/03/19
- [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 <=
- [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
- [RFC PATCH glibc 34/34] hurd: Add expected abilist files for x86_64, Sergey Bugaev, 2023/03/19