Print this page 
15254 %ymm registers not restored after signal handler
15367 x86 getfpregs() summons corrupting %xmm ghosts
15333 want x86 /proc xregs support (libc_db, libproc, mdb, etc.)
15336 want libc functions for extended ucontext_t
15334 want ps_lwphandle-specific reg routines
15328 FPU_CW_INIT mistreats reserved bit
15335 i86pc fpu_subr.c isn't really platform-specific
15332 setcontext(2) isn't actually noreturn
15331 need <sys/stdalign.h>
Change-Id: I7060aa86042dfb989f77fc3323c065ea2eafa9ad
Conflicts:
    usr/src/uts/common/fs/proc/prcontrol.c
    usr/src/uts/intel/os/archdep.c
    usr/src/uts/intel/sys/ucontext.h
    usr/src/uts/intel/syscall/getcontext.c


   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 




  27         .file   "__getcontext.s"
  28 
  29 /*
  30  * __getcontext() must be implemented in assembler, as opposed
  31  * to the other members of the SYS_context family (see ucontext.c)
  32  * because we must be careful to get the precise context of the caller.
  33  */
  34 
  35 #include "SYS.h"
  36 
  37         ENTRY(__getcontext)
  38         movq    %rdi, %rsi
  39         movq    $0, %rdi
  40         SYSTRAP_RVAL1(context)
  41         SYSCERROR
  42         RETC
  43         SET_SIZE(__getcontext)











   7  *
   8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9  * or http://www.opensolaris.org/os/licensing.
  10  * See the License for the specific language governing permissions
  11  * and limitations under the License.
  12  *
  13  * When distributing Covered Code, include this CDDL HEADER in each
  14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15  * If applicable, add the following below this CDDL HEADER, with the
  16  * fields enclosed by brackets "[]" replaced with your own identifying
  17  * information: Portions Copyright [yyyy] [name of copyright owner]
  18  *
  19  * CDDL HEADER END
  20  */
  21 
  22 /*
  23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24  * Use is subject to license terms.
  25  */
  26 
  27 /*
  28  * Copyright 2023 Oxide Computer Company
  29  */
  30 
  31         .file   "__getcontext.s"
  32 
  33 /*
  34  * __getcontext() must be implemented in assembler, as opposed
  35  * to the other members of the SYS_context family (see ucontext.c)
  36  * because we must be careful to get the precise context of the caller.
  37  */
  38 
  39 #include "SYS.h"
  40 
  41         ENTRY(__getcontext)
  42         movq    %rdi, %rsi
  43         movq    $0, %rdi
  44         SYSTRAP_RVAL1(context)
  45         SYSCERROR
  46         RETC
  47         SET_SIZE(__getcontext)
  48 
  49         ENTRY(__getcontext_extd)
  50         movq    %rdi, %rsi
  51         movq    $4, %rdi
  52         SYSTRAP_RVAL1(context)
  53         SYSCERROR
  54         RETC
  55         SET_SIZE(__getcontext_extd)