--- old/usr/src/lib/libc/amd64/sys/__getcontext.S
          +++ new/usr/src/lib/libc/amd64/sys/__getcontext.S

   1    1  /*
   2    2   * CDDL HEADER START
   3    3   *
   4    4   * The contents of this file are subject to the terms of the
   5    5   * Common Development and Distribution License (the "License").
   6    6   * You may not use this file except in compliance with the License.
   7    7   *
   8    8   * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
   9    9   * or http://www.opensolaris.org/os/licensing.
  10   10   * See the License for the specific language governing permissions
  11   11   * and limitations under the License.
  12   12   *
  13   13   * When distributing Covered Code, include this CDDL HEADER in each
  14   14   * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
  15   15   * If applicable, add the following below this CDDL HEADER, with the
  16   16   * fields enclosed by brackets "[]" replaced with your own identifying
  17   17   * information: Portions Copyright [yyyy] [name of copyright owner]
  18   18   *
  19   19   * CDDL HEADER END
  20   20   */
  21   21  
  22   22  /*
  23   23   * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
  24   24   * Use is subject to license terms.
  25   25   */
  26   26  
  27   27  /*
  28   28   * Copyright 2023 Oxide Computer Company
  29   29   */
  30   30  
  31   31          .file   "__getcontext.s"
  32   32  
  33   33  /*
  34   34   * __getcontext() must be implemented in assembler, as opposed
  35   35   * to the other members of the SYS_context family (see ucontext.c)
  36   36   * because we must be careful to get the precise context of the caller.
  37   37   */
  38   38  
  39   39  #include "SYS.h"
  40   40  
  41   41          ENTRY(__getcontext)
  42   42          movq    %rdi, %rsi
  43   43          movq    $0, %rdi
  44   44          SYSTRAP_RVAL1(context)
  45   45          SYSCERROR
  46   46          RETC
  47   47          SET_SIZE(__getcontext)
  48   48  
  49   49          ENTRY(__getcontext_extd)
  50   50          movq    %rdi, %rsi
  51   51          movq    $4, %rdi
  52   52          SYSTRAP_RVAL1(context)
  53   53          SYSCERROR
  54   54          RETC
  55   55          SET_SIZE(__getcontext_extd)

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