--- /dev/null
+/* BFD back-end for NetBSD/386 a.out-ish binaries.
+ 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. */
+
+#define BYTES_IN_WORD 4
+#define ARCH 32
+
+/* ZMAGIC files never have the header in the text. */
+#define N_HEADER_IN_TEXT(x) 0
+
+/* ZMAGIC files start at address 0. This does not apply to QMAGIC. */
+#define TEXT_START_ADDR 0
+
+#define PAGE_SIZE 4096
+#define SEGMENT_SIZE PAGE_SIZE
+
+#define DEFAULT_ARCH bfd_arch_i386
+#define MACHTYPE_OK(mtype) ((mtype) == M_386 || (mtype) == M_I386 || (mtype) == M_UNKNOWN)
+
+#define MY(OP) CAT(netbsd386_,OP)
+#define TARGETNAME "netbsd-386"
+
+#define N_MAGIC(ex) \
+ ( (((ex).a_info)&0xffff0000) ? (ntohl(((ex).a_info))&0xffff) : ((ex).a_info))
+#define N_MACHTYPE(ex) \
+ ( (((ex).a_info)&0xffff0000) ? ((ntohl(((ex).a_info))>>16)&0x03ff) : 0 )
+# define N_FLAGS(ex) \
+ ( (((ex).a_info)&0xffff0000) ? ((ntohl(((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)))
+#define N_SET_FLAGS(exec, flags) \
+ ((exec).a_info = ((exec).a_info & 0xffff) | (flags & 0xffff))
+
+#include "bfd.h"
+#include "sysdep.h"
+#include "libbfd.h"
+#include "libaout.h"
+
+#define N_GETMAGIC2(ex) \
+ ( (((ex).a_info)&0xffff0000) ? (ntohl(((ex).a_info))&0xffff) : \
+ (((ex).a_info) | 0x10000) )
+
+#define N_TXTADDR(ex) (N_GETMAGIC2(ex) == (ZMAGIC|0x10000) ? 0 : 4096)
+#define N_TXTOFF(ex) \
+ ( N_GETMAGIC2(ex)==ZMAGIC || N_GETMAGIC2(ex)==(QMAGIC|0x10000) ? \
+ 0 : (N_GETMAGIC2(ex)==(ZMAGIC|0x10000) ? 4096 : EXEC_BYTES_SIZE ))
+#define N_ALIGN(ex,x) \
+ (N_MAGIC(ex) == ZMAGIC || N_MAGIC(ex) == QMAGIC ? \
+ ((x) + 4096 - 1) & ~(4096 - 1) : (x))
+#define N_DATADDR(ex) \
+ N_ALIGN(ex, N_TXTADDR(ex) + (ex).a_text)
+/* Data segment offset. */
+#define N_DATOFF(ex) \
+ N_ALIGN(ex, N_TXTOFF(ex) + (ex).a_text)
+
+/* #define N_BADMAG(x) n_badmag(N_MAGIC(x)) */
+
+#define NO_SWAP_MAGIC /* magic number already in correct endian format */
+
+#include "aout-target.h"
+
+#if 0
+int
+n_badmag(x)
+unsigned long x; {
+ union {
+ unsigned long l;
+ unsigned char c[sizeof(unsigned long)];
+ } l;
+ unsigned char temp;
+
+ printf ("x = %o, OMAGIC = %o, NMAGIC = %o, ZMAGIC = %o, QMAGIC = %o\n",
+ x, OMAGIC, NMAGIC, ZMAGIC, QMAGIC);
+
+ l.l = x;
+ temp = l.c[0];
+ l.c[0] = l.c[3];
+ l.c[3] = temp;
+ temp = l.c[2];
+ l.c[2] = l.c[1];
+ l.c[1] = temp;
+ printf ("\tbyte-swapped(x) = %o\n", l.l);
+
+ return (x != OMAGIC
+ && x != NMAGIC
+ && x != ZMAGIC
+ && x != QMAGIC);
+}
+#endif
+
ms_type = mst_file_data;
break;
#endif
+ case N_TEXT:
+ /* Don't put gcc_compiled, __gnu_compiled_cplus, and friends into
+ the minimal symbols, because if there is also another symbol
+ at the same address (e.g. the first function of the file),
+ lookup_minimal_symbol_by_pc would have no way of getting the
+ right one. */
+ if (name[0] == 'g'
+ && (strcmp (name, GCC_COMPILED_FLAG_SYMBOL) == 0
+ || strcmp (name, GCC2_COMPILED_FLAG_SYMBOL) == 0))
+ return;
+
+ {
+ char *tempstring = name;
+ if (tempstring[0] == bfd_get_symbol_leading_char (objfile->obfd))
+ ++tempstring;
+ if (STREQN (tempstring, "__gnu_compiled", 14))
+ return;
+ }
+
case N_NBTEXT:
case N_FN:
case N_FN_SEQ:
- case N_TEXT:
ms_type = mst_file_text;
break;
/* Check for __DYNAMIC, which is used by Sun shared libraries.
Record it as global even if it's local, not global, so
- lookup_minimal_symbol can find it.
- FIXME: this might want to check for _DYNAMIC and the current
- symbol_leading_char. */
+ lookup_minimal_symbol can find it. We don't check symbol_leading_char
+ because for SunOS4 it always is '_'. */
if (name[8] == 'C' && STREQ ("__DYNAMIC", name))
ms_type = mst_data;
}
\f
/* Register our willingness to decode symbols for SunOS and a.out and
- b.out files handled by BFD... */
+ NetBSD and b.out files handled by BFD... */
static struct sym_fns sunos_sym_fns =
{
"sunOs", /* sym_name: name or name prefix of BFD target type */
NULL /* next: pointer to next struct sym_fns */
};
+static struct sym_fns netbsd386_sym_fns =
+{
+ "netbsd-386", /* sym_name: name or name prefix of BFD target type */
+ 10, /* sym_namelen: number of significant sym_name chars */
+ dbx_new_init, /* sym_new_init: init anything gbl to entire symtab */
+ dbx_symfile_init, /* sym_init: read initial info, setup for sym_read() */
+ dbx_symfile_read, /* sym_read: read a symbol file into symtab */
+ dbx_symfile_finish, /* sym_finish: finished with file, cleanup */
+ dbx_symfile_offsets, /* sym_offsets: parse user's offsets to internal form */
+ NULL /* next: pointer to next struct sym_fns */
+};
+
static struct sym_fns bout_sym_fns =
{
"b.out", /* sym_name: name or name prefix of BFD target type */
{
add_symtab_fns(&sunos_sym_fns);
add_symtab_fns(&aout_sym_fns);
+ add_symtab_fns(&netbsd386_sym_fns);
add_symtab_fns(&bout_sym_fns);
}
projects / thirdparty / binutils-gdb.git / commitdiff
