1 /* $NetBSD: linux_exec.h,v 1.13 2002/11/13 15:16:31 jdolecek Exp $ */ 2 3 /*- 4 * Copyright (c) 1998, 2001 The NetBSD Foundation, Inc. 5 * All rights reserved. 6 * 7 * This code is derived from software contributed to The NetBSD Foundation 8 * by Emmanuel Dreyfus. 9 * 10 * Redistribution and use in source and binary forms, with or without 11 * modification, are permitted provided that the following conditions 12 * are met: 13 * 1. Redistributions of source code must retain the above copyright 14 * notice, this list of conditions and the following disclaimer. 15 * 2. Redistributions in binary form must reproduce the above copyright 16 * notice, this list of conditions and the following disclaimer in the 17 * documentation and/or other materials provided with the distribution. 18 * 3. All advertising materials mentioning features or use of this software 19 * must display the following acknowledgement: 20 * This product includes software developed by the NetBSD 21 * Foundation, Inc. and its contributors. 22 * 4. Neither the name of The NetBSD Foundation nor the names of its 23 * contributors may be used to endorse or promote products derived 24 * from this software without specific prior written permission. 25 * 26 * THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS 27 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED 28 * TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR 29 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS 30 * BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 31 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 32 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS 33 * INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN 34 * CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 35 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 36 * POSSIBILITY OF SUCH DAMAGE. 37 */ 38 39 #ifndef _POWERPC_LINUX_EXEC_H 40 #define _POWERPC_LINUX_EXEC_H 41 42 #include <sys/exec_aout.h> 43 #include <sys/exec_elf.h> 44 #include <sys/types.h> 45 46 /* 47 * From Linux's include/asm-ppc/elf.h 48 */ 49 #define LINUX_ELF_HWCAP (0) 50 51 /* 52 * From Linux's include/asm-ppc/param.h 53 */ 54 # define LINUX_CLOCKS_PER_SEC 100 /* frequency at which times() counts */ 55 56 /* 57 * Linux a.out format parameters 58 */ 59 #define LINUX_M_POWERPC MID_POWERPC 60 #define LINUX_MID_MACHINE LINUX_M_POWERPC 61 62 /* 63 * Linux Elf32 format parameters 64 */ 65 66 #define LINUX_GCC_SIGNATURE 1 67 /* 68 * LINUX_ATEXIT_SIGNATURE enable the atexit_signature test. See 69 * sys/compat/linux/common/linux_exec_elf32.c:linux_atexit_signature() 70 */ 71 #define LINUX_ATEXIT_SIGNATURE 1 72 73 /* 74 * LINUX_SHIFT enable the 16 bytes shift for arguments and ELF auxiliary 75 * table. This is needed on the PowerPC 76 */ 77 #define LINUX_SHIFT 0x0000000FUL 78 79 /* 80 * LINUX_SP_WRAP enable the stack pointer wrap before Linux's ld.so 81 * transfers control to the Linux executable. It is set to the size 82 * of the stack pointer wrap code, which is defined in 83 * sys/compat/linux/arch/powerpc/linux_sp_wrap.S 84 */ 85 #define LINUX_SP_WRAP 0x30 /* Size of the stack pointer wrap code */ 86 87 /* 88 * Entries in the ELF auxiliary table. This is counted from 89 * sys/compat/linux/arc/powerpc/linux_exec_powerpc.c 90 */ 91 #define LINUX_ELF_AUX_ENTRIES 14 92 93 /* 94 * Size of the auxiliary ELF table. On the PowerPC we need 16 extra bytes 95 * in order to force an alignement on a 16 bytes boundary (this is expected 96 * by PowerPC GNU ld.so). If we use LINUX_SP_WRAP, we also need some extra 97 * room for the sp_wrap_code. 98 */ 99 #define LINUX_ELF_AUX_ARGSIZ \ 100 ((howmany(LINUX_ELF_AUX_ENTRIES * sizeof(Aux32Info), sizeof(Elf32_Addr))) \ 101 + 16 + LINUX_SP_WRAP) 102 103 /* we have special powerpc ELF copyargs */ 104 #define LINUX_MACHDEP_ELF_COPYARGS 105 106 /* NetBSD/powerpc doesn't use e_syscall, so use the default. */ 107 #define LINUX_SYSCALL_FUNCTION syscall 108 109 #endif /* !_POWERPC_LINUX_EXEC_H */ 110