sysdeps/mach/x86/sysdep.h

   1 /* Copyright (C) 1991-2024 Free Software Foundation, Inc.
   2
   3    This file is part of the GNU C Library.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <https://www.gnu.org/licenses/>.  */
  18
  19 #ifndef _MACH_X86_SYSDEP_H
  20 #define _MACH_X86_SYSDEP_H 1
  21
  22 /* Defines RTLD_PRIVATE_ERRNO and USE_DL_SYSINFO.  */
  23 #include <dl-sysdep.h>
  24 #include <tls.h>
  25
  26 #define LOSE asm volatile ("hlt")
  27
  28 #define STACK_GROWTH_DOWN
  29
  30 /* Get the machine-independent Mach definitions.  */
  31 #include <sysdeps/mach/sysdep.h>
  32
  33 #undef ENTRY
  34 #undef ALIGN
  35
  36 #ifdef __x86_64__
  37 #define RETURN_TO(sp, pc, retval) \
  38   asm volatile ("movq %0, %%rsp; jmp %*%1 # %2" \
  39                 : : "g" (sp), "r" (pc), "a" (retval))
  40 /* This should be rearranged, but at the moment this file provides
  41    the most useful definitions for assembler syntax details.  */
  42 #include <sysdeps/unix/x86_64/sysdep.h>
  43 #else
  44 #define RETURN_TO(sp, pc, retval) \
  45   asm volatile ("movl %0, %%esp; jmp %*%1 # %2" \
  46                 : : "g" (sp), "r" (pc), "a" (retval))
  47 #include <sysdeps/unix/i386/sysdep.h>
  48 #endif
  49
  50 #endif /* mach/x86/sysdep.h */