package/base/glibc32/powerpc32le.patch

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   2 # T2 SDE: package/*/glibc32/powerpc32le.patch
   3 # Copyright (C) 2023 The T2 SDE Project
   4 #
   5 # This Copyright note is generated by scripts/Create-CopyPatch,
   6 # more information can be found in the files COPYING and README.
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   8 # This patch file is dual-licensed. It is available under the license the
   9 # patched project is licensed under, as long as it is an OpenSource license
  10 # as defined at http://www.opensource.org/ (e.g. BSD, X11) or under the terms
  11 # of the GNU General Public License version 2 as used by the T2 SDE.
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  13
  14 Do not use '-mmultiple' on little-endian PowerPC systems, since those
  15 instructions do not work when the processor is in little-endian mode.
  16 The exceptions are PPC740 and PPC750 which permit these instructions
  17 in little-endian mode.
  18
  19 --- glibc-2.36/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S.vanilla        2023-01-07 17:17:49.726720823 +0100
  20 +++ glibc-2.36/sysdeps/unix/sysv/linux/powerpc/powerpc32/clone.S        2023-01-07 17:45:52.919816459 +0100
  21 @@ -39,7 +39,10 @@
  22         /* Set up stack frame for parent.  */
  23         stwu    r1,-32(r1)
  24         cfi_adjust_cfa_offset (32)
  25 -       stmw    r28,16(r1)
  26 +       stw     r28,16(r1)
  27 +       stw     r29,20(r1)
  28 +       stw     r30,24(r1)
  29 +       stw     r31,28(r1)
  30
  31         /* Set up stack frame for child.  */
  32         clrrwi  r4,r4,4
  33 @@ -80,7 +83,11 @@
  34
  35  L(parent):
  36         /* Parent.  Restore registers & return.  */
  37 -       lmw     r28,16(r1)
  38 +       lwz     r28,16(r1)
  39 +       lwz     r29,20(r1)
  40 +       lwz     r30,24(r1)
  41 +       lwz     r31,28(r1)
  42 +
  43         addi    r1,r1,32
  44         bnslr+
  45         b       __syscall_error@local