components/runtime/openjdk-24/patches/illumos-safefetch.patch

   1 --- /dev/null   Fri Apr 22 12:35:21 2022
   2 +++ a/src/hotspot/os_cpu/solaris_x86/safefetch_solaris_x86_64.S Fri Apr 22 12:29:28 2022
   3 @@ -0,0 +1,58 @@
   4 +#
   5 +# Copyright (c) 2022 SAP SE. All rights reserved.
   6 +# Copyright (c) 2022, Oracle and/or its affiliates. All rights reserved.
   7 +# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
   8 +#
   9 +# This code is free software; you can redistribute it and/or modify it
  10 +# under the terms of the GNU General Public License version 2 only, as
  11 +# published by the Free Software Foundation.
  12 +#
  13 +# This code is distributed in the hope that it will be useful, but WITHOUT
  14 +# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
  15 +# FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License
  16 +# version 2 for more details (a copy is included in the LICENSE file that
  17 +# accompanied this code).
  18 +#
  19 +# You should have received a copy of the GNU General Public License version
  20 +# 2 along with this work; if not, write to the Free Software Foundation,
  21 +# Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA.
  22 +#
  23 +# Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA
  24 +# or visit www.oracle.com if you need additional information or have any
  25 +# questions.
  26 +#
  27 +    .globl SafeFetch32_impl
  28 +    .globl SafeFetchN_impl
  29 +    .globl _SafeFetch32_fault
  30 +    .globl _SafeFetchN_fault
  31 +    .globl _SafeFetch32_continuation
  32 +    .globl _SafeFetchN_continuation
  33 +
  34 +       .text
  35 +
  36 +
  37 +    # Support for int SafeFetch32(int* address, int defaultval);
  38 +    #
  39 +    #  %rdi : address
  40 +    #  %esi : defaultval
  41 +    .type    SafeFetch32_impl,@function
  42 +SafeFetch32_impl:
  43 +_SafeFetch32_fault:
  44 +    movl (%rdi), %eax       # load target value, may fault
  45 +    ret
  46 +_SafeFetch32_continuation:
  47 +    movl %esi, %eax         # return default
  48 +    ret
  49 +
  50 +    # Support for intptr_t SafeFetchN(intptr_t* address, intptr_t defaultval);
  51 +    #
  52 +    #  %rdi : address
  53 +    #  %rsi : defaultval
  54 +    .type    SafeFetchN_impl,@function
  55 +SafeFetchN_impl:
  56 +_SafeFetchN_fault:
  57 +    movq (%rdi), %rax       # load target value, may fault
  58 +    ret
  59 +_SafeFetchN_continuation:
  60 +    movq %rsi, %rax         # return default
  61 +    ret