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11787 Kernel needs to be built with retpolines
11788 Kernel needs to generally use RSB stuffing
Reviewed by: Jerry Jelinek <jerry.jelinek@joyent.com>
Reviewed by: John Levon <john.levon@joyent.com>


   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   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  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.

  24  */
  25 
  26 #pragma ident   "%Z%%M% %I%     %E% SMI"
  27 
  28 /*
  29  * exit routine from linker/loader to kernel
  30  */
  31 
  32 #include <sys/asm_linkage.h>
  33 #include <sys/reboot.h>
  34 
  35 /*
  36  *  exitto is called from main() and does 1 things
  37  *      It then jumps directly to the just-loaded standalone.
  38  *      There is NO RETURN from exitto().
  39  */
  40 
  41 #if defined(lint)
  42 
  43 /* ARGSUSED */
  44 void
  45 exitto(caddr_t entrypoint)
  46 {}
  47 
  48 #else   /* lint */
  49 
  50 
  51         ENTRY(exitto)
  52 
  53         /preserve destination in temporary register %r11
  54         movq    %rdi, %r11
  55 
  56         /holds address of array of pointers to functions
  57         / $arg1
  58         movq    $romp, %rax
  59         movq    (%rax), %rdi
  60 
  61         /holds address of bootops structure
  62         / $arg2
  63         movq    $ops, %rax
  64         movq    (%rax), %rdx
  65 
  66         / Call destination
  67         call   *%r11
  68 
  69         SET_SIZE(exitto)
  70 
  71 #endif
  72 


   4  * The contents of this file are subject to the terms of the
   5  * Common Development and Distribution License (the "License").
   6  * You may not use this file except in compliance with the License.
   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  * Copyright 2007 Sun Microsystems, Inc.  All rights reserved.
  23  * Use is subject to license terms.
  24  * Copyright 2019 Joyent, Inc.
  25  */
  26 


  27 /*
  28  * exit routine from linker/loader to kernel
  29  */
  30 
  31 #include <sys/asm_linkage.h>
  32 #include <sys/reboot.h>
  33 
  34 /*
  35  *  exitto is called from main() and does 1 things
  36  *      It then jumps directly to the just-loaded standalone.
  37  *      There is NO RETURN from exitto().
  38  */
  39 
  40 #if defined(lint)
  41 
  42 /* ARGSUSED */
  43 void
  44 exitto(caddr_t entrypoint)
  45 {}
  46 
  47 #else   /* lint */
  48 
  49 
  50         ENTRY(exitto)
  51 
  52         /preserve destination in temporary register %r11
  53         movq    %rdi, %r11
  54 
  55         /holds address of array of pointers to functions
  56         / $arg1
  57         movq    $romp, %rax
  58         movq    (%rax), %rdi
  59 
  60         /holds address of bootops structure
  61         / $arg2
  62         movq    $ops, %rax
  63         movq    (%rax), %rdx
  64 
  65         / Call destination
  66         INDIRECT_CALL_REG(r11)
  67 
  68         SET_SIZE(exitto)
  69 
  70 #endif
  71