diff mbox series

[RFC,28/34] hurd: Implement _hurd_longjmp_thread_state for x86_64

Message ID 20230319151017.531737-29-bugaevc@gmail.com
State Committed, archived
Headers
Series The rest of the x86_64-gnu port |

Checks

Context Check Description
dj/TryBot-apply_patch success Patch applied to master at the time it was sent

Commit Message

Sergey Bugaev March 19, 2023, 3:10 p.m. UTC 
  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

Comments

Samuel Thibault April 2, 2023, 11:23 p.m. UTC | #1 
Applied, thanks!

Sergey Bugaev, le dim. 19 mars 2023 18:10:11 +0300, a ecrit:
> 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
>
diff mbox series

Patch

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;
+}