X-Git-Url: http://drtracing.org/?a=blobdiff_plain;f=bfd%2Fnetbsd.h;h=a11724911cc26961e9b43fa5ad55c29cdaa84b7a;hb=1d0376927290381af7edc73c6d0175fbf6699156;hp=307530ac1e2b146534d7694423e458aa6113f006;hpb=32399d323e032fbed908dcf35f13c95d1e429beb;p=deliverable%2Fbinutils-gdb.git diff --git a/bfd/netbsd.h b/bfd/netbsd.h index 307530ac1e..a11724911c 100644 --- a/bfd/netbsd.h +++ b/bfd/netbsd.h @@ -1,72 +1,120 @@ /* BFD back-end definitions used by all NetBSD targets. - Copyright (C) 1990, 1991, 1992 Free Software Foundation, Inc. - -This file is part of BFD, the Binary File Descriptor library. - -This program is free software; you can redistribute it and/or modify -it under the terms of the GNU General Public License as published by -the Free Software Foundation; either version 2 of the License, or -(at your option) any later version. - -This program is distributed in the hope that it will be useful, -but WITHOUT ANY WARRANTY; without even the implied warranty of -MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the -GNU General Public License for more details. - -You should have received a copy of the GNU General Public License -along with this program; if not, write to the Free Software -Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. -*/ - -/* NetBSD fits its header into the start of its text segment */ -#define N_HEADER_IN_TEXT(x) 1 -#define TEXT_START_ADDR PAGE_SIZE - -#define N_MAGIC(ex) \ - ( (((ex).a_info)&0xffff0000) ? (((ex).a_info)&0xffff) : ((ex).a_info) ) -#define N_MACHTYPE(ex) \ - ( (((ex).a_info)&0xffff0000) ? ((((ex).a_info)>>16)&0x03ff) : 0 ) -# define N_FLAGS(ex) \ - ( (((ex).a_info)&0xffff0000) ? ((((ex).a_info)>>26)&0x3f) : 0 ) -#define N_SET_INFO(ex, mag,mid,flag) \ - ( (ex).a_info = htonl( (((flag)&0x3f)<<26) | (((mid)&0x03ff)<<16) | \ - (((mag)&0xffff)) ) ) -#define N_SET_MAGIC(exec,magic) \ - ((exec).a_info = (((exec).a_info & ~0xffff) | ((magic) & 0xffff))) -#define N_SET_MACHTYPE(exec,machtype) \ - ((exec).a_info = \ - (((exec).a_info & ~(0x3ff<<16)) | (((machtype)&0xff) << 16))) + Copyright 1990, 1991, 1992, 1994, 1995, 1996, 1997, 1998, 2000, 2002, + 2005, 2007 Free Software Foundation, Inc. + + This file is part of BFD, the Binary File Descriptor library. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program; if not, write to the Free Software + Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, + MA 02110-1301, USA. */ + + +/* Check for our machine type (part of magic number). */ +#ifndef MACHTYPE_OK +#define MACHTYPE_OK(m) ((m) == DEFAULT_MID || (m) == M_UNKNOWN) +#endif + +/* This is the normal load address for executables. */ +#define TEXT_START_ADDR TARGET_PAGE_SIZE + +/* NetBSD ZMAGIC has its header in the text segment. */ +#define N_HEADER_IN_TEXT(x) 1 + +/* Determine if this is a shared library using the flags. */ +#define N_SHARED_LIB(x) (N_DYNAMIC (x)) + +/* We have 6 bits of flags and 10 bits of machine ID. */ +#define N_MACHTYPE(exec) \ + ((enum machine_type) (((exec).a_info >> 16) & 0x03ff)) +#define N_FLAGS(exec) \ + (((exec).a_info >> 26) & 0x3f) + +#define N_SET_INFO(exec, magic, type, flags) \ + ((exec).a_info = ((magic) & 0xffff) \ + | (((int) (type) & 0x3ff) << 16) \ + | (((flags) & 0x3f) << 24)) +#define N_SET_MACHTYPE(exec, machtype) \ + ((exec).a_info = \ + ((exec).a_info & 0xfb00ffff) | ((((int) (machtype)) & 0x3ff) << 16)) #define N_SET_FLAGS(exec, flags) \ - ((exec).a_info = ((exec).a_info & 0xffff) | (flags & 0xffff)) + ((exec).a_info = \ + ((exec).a_info & 0x03ffffff) | ((flags & 0x03f) << 26)) -#include "bfd.h" #include "sysdep.h" +#include "bfd.h" #include "libbfd.h" #include "libaout.h" -#define N_GETMAGIC(ex) \ - ( (((ex).a_info)&0xffff0000) ? (((ex).a_info)&0xffff) : ((ex).a_info)) -#define N_GETMAGIC2(ex) \ - ( (((ex).a_info)&0xffff0000) ? (((ex).a_info)&0xffff) : \ - (((ex).a_info) | 0x10000) ) - -#define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : __LDPGSZ) -#define N_TXTOFF(ex) \ - ( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \ - 0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? __LDPGSZ : EXEC_BYTES_SIZE )) -#define N_ALIGN(ex,x) \ - (N_MAGIC(ex) == ZMAGIC || N_MAGIC(ex) == QMAGIC ? \ - ((x) + __LDPGSZ - 1) & ~(__LDPGSZ - 1) : (x)) -#define N_DATADDR(ex) \ - (N_GETMAGIC(ex) == OMAGIC ? N_TXTADDR(ex) + (ex).a_text : \ - (N_TXTADDR(ex) + (ex).a_text + __LDPGSZ - 1) & ~(__LDPGSZ - 1)) - -/* Data segment offset. */ -#define N_DATOFF(ex) \ - N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text) - /* On NetBSD, the magic number is always in ntohl's "network" (big-endian) format. */ #define SWAP_MAGIC(ext) bfd_getb32 (ext) +/* On NetBSD, the entry point may be taken to be the start of the text + section. */ +#define MY_entry_is_text_address 1 + +#define MY_write_object_contents MY (write_object_contents) +static bfd_boolean MY (write_object_contents) (bfd *); + +#define MY_text_includes_header 1 + #include "aout-target.h" + +/* Write an object file. + Section contents have already been written. We write the + file header, symbols, and relocation. */ + +static bfd_boolean +MY (write_object_contents) (bfd *abfd) +{ + struct external_exec exec_bytes; + struct internal_exec *execp = exec_hdr (abfd); + + /* We must make certain that the magic number has been set. This + will normally have been done by set_section_contents, but only if + there actually are some section contents. */ + if (! abfd->output_has_begun) + { + bfd_size_type text_size; + file_ptr text_end; + + NAME (aout, adjust_sizes_and_vmas) (abfd, & text_size, & text_end); + } + + obj_reloc_entry_size (abfd) = RELOC_STD_SIZE; + + /* Magic number, maestro, please! */ + switch (bfd_get_arch(abfd)) + { + case DEFAULT_ARCH: + N_SET_MACHTYPE(*execp, DEFAULT_MID); + break; + default: + N_SET_MACHTYPE(*execp, M_UNKNOWN); + break; + } + + /* The NetBSD magic number is always big-endian */ +#ifndef TARGET_IS_BIG_ENDIAN_P + /* XXX aren't there any macro to change byteorder of a word independent of + the host's or target's endianesses? */ + execp->a_info + = (execp->a_info & 0xff) << 24 | (execp->a_info & 0xff00) << 8 + | (execp->a_info & 0xff0000) >> 8 | (execp->a_info & 0xff000000) >> 24; +#endif + + WRITE_HEADERS (abfd, execp); + + return TRUE; +}