1 /* Copyright (C) 1991-2021 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_I386_SYSDEP_H 20 #define _MACH_I386_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 SNARF_ARGS(entry_sp, argc, argv, envp) \ 29 do \ 30 { \ 31 char **p; \ 32 argc = (int) *entry_sp; \ 33 argv = (char **) (entry_sp + 1); \ 34 p = argv; \ 35 while (*p++ != NULL) \ 36 ; \ 37 if (p >= (char **) argv[0]) \ 38 --p; \ 39 envp = p; \ 40 } while (0) 41 42 #define RETURN_TO(sp, pc, retval) \ 43 asm volatile ("movl %0, %%esp; jmp %*%1 # %2" \ 44 : : "g" (sp), "r" (pc), "a" (retval)) 45 46 47 #define STACK_GROWTH_DOWN 48 49 /* Get the machine-independent Mach definitions. */ 50 #include <sysdeps/mach/sysdep.h> 51 52 53 /* This should be rearranged, but at the moment this file provides 54 the most useful definitions for assembler syntax details. */ 55 #undef ENTRY 56 #undef ALIGN 57 #include <sysdeps/unix/i386/sysdep.h> 58 59 #endif /* mach/i386/sysdep.h */ 60