-/* Another try at encapsulating bsd object files in coff.
- Copyright (C) 1988, 1989, Free Software Foundation, Inc.
+/* Yet Another Try at encapsulating bsd object files in coff.
+ Copyright (C) 1988, 1989, 1991 Free Software Foundation, Inc.
Written by Pace Willisson 12/9/88
- This file 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 1, or (at your option)
- any later version.
+ This file is obsolete. It needs to be converted to just define a bunch
+ of stuff that BFD can use to do coff-encapsulated files. --gnu@cygnus.com
- This file 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.
+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. */
- You should have received a copy of the GNU General Public License
- along with this file; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
/*
- * This time, we will only use the coff headers to tell the kernel
+ * We only use the coff headers to tell the kernel
* how to exec the file. Therefore, the only fields that need to
* be filled in are the scnptr and vaddr for the text and data
* sections, and the vaddr for the bss. As far as coff is concerned,
* like N_TXTOFF and N_TXTADDR use this field to find the bsd header.
*
* The only problem is to track down the bsd exec header. The
- * macros HEADER_OFFSET, etc do this. Look at nm.c, dis.c, etc
- * for examples.
+ * macros HEADER_OFFSET, etc do this.
*/
-#ifndef A_OUT_ENCAP_H_SEEN
-#define A_OUT_ENCAP_H_SEEN
-
-#include "a.out.gnu.h"
-
-/* Figure out what our target machine is */
-#include "target.h"
#define N_FLAGS_COFF_ENCAPSULATE 0x20 /* coff header precedes bsd header */
unsigned short s_nreloc;
unsigned short s_nlnno;
long s_flags;
- } scns[3]; /* text, data, bss */
+ } scns[3];
};
\f
/* Describe some of the parameters of the encapsulation,
including how to find the encapsulated BSD header. */
-#if TARGET == TARGET_I386
-#define COFF_MAGIC 0514 /* I386MAGIC */
-#endif
-#if TARGET == TARGET_M68K
-#define COFF_MAGIC 0520 /* MC68MAGIC */
-#endif
-#if TARGET == TARGET_SPARC
-#define COFF_MAGIC UNKNOWN!!! /* Used by TTI */
-#endif
-#if TARGET == TARGET_AM29K
-#define COFF_MAGIC 0x17A /* Used by asm29k cross-tools */
-#endif
-
-#ifdef COFF_MAGIC
-short __header_offset_temp;
-
/* FIXME, this is dumb. The same tools can't handle a.outs for different
architectures, just because COFF_MAGIC is different; so you need a
- separate GNU nm for every architecture!!? Also note that for
- expediency, this macros accepts COFF_MAGIC in either byte order.
- The right thing to do is to call read_aout_header to handle all this. */
+ separate GNU nm for every architecture!!? Unfortunately, it needs to
+ be this way, since the COFF_MAGIC value is determined by the kernel
+ we're trying to fool here. */
+#define COFF_MAGIC_I386 0514 /* I386MAGIC */
+#define COFF_MAGIC_M68K 0520 /* MC68MAGIC */
+#define COFF_MAGIC_A29K 0x17A /* Used by asm29k cross-tools */
+
+#ifdef COFF_MAGIC
+short __header_offset_temp;
#define HEADER_OFFSET(f) \
(__header_offset_temp = 0, \
fread ((char *)&__header_offset_temp, sizeof (short), 1, (f)), \
fseek ((f), -sizeof (short), 1), \
- (__header_offset_temp==COFF_MAGIC || __header_offset_temp == \
- ((COFF_MAGIC >> 8)|((COFF_MAGIC&0xFF)<<8)) \
- ? sizeof(struct coffheader) : 0))
-
-#define HEADER_OFFSET_FD(fd) \
- (__header_offset_temp = 0, \
- read (fd, (char *)&__header_offset_temp, sizeof (short)), \
- lseek ((fd), -sizeof (short), 1), \
- (__header_offset_temp==COFF_MAGIC || __header_offset_temp == \
- ((COFF_MAGIC >> 8)|((COFF_MAGIC&0xFF)<<8)) \
- ? sizeof(struct coffheader) : 0))
-
-
+ __header_offset_temp==COFF_MAGIC ? sizeof(struct coffheader) : 0)
#else
#define HEADER_OFFSET(f) 0
-#define HEADER_OFFSET_FD(fd) 0
#endif
#define HEADER_SEEK(f) (fseek ((f), HEADER_OFFSET((f)), 1))
-#define HEADER_SEEK_FD(fd) (lseek ((fd), HEADER_OFFSET_FD((fd)), 1))
-
\f
/* Describe the characteristics of the BSD header
that appears inside the encapsulation. */
-#undef _N_HDROFF
-#undef N_TXTADDR
-#undef N_DATADDR
-
/* Encapsulated coff files that are linked ZMAGIC have a text segment
offset just past the header (and a matching TXTADDR), excluding
the headers from the text segment proper but keeping the physical
The _N_HDROFF gets sizeof struct exec added to it, so we have
to compensate here. See <a.out.gnu.h>. */
+#undef _N_HDROFF
+#undef N_TXTADDR
+#undef N_DATADDR
+
#define _N_HDROFF(x) ((N_FLAGS(x) & N_FLAGS_COFF_ENCAPSULATE) ? \
- sizeof (struct coffheader) : -sizeof (struct exec))
+ sizeof (struct coffheader) : 0)
/* Address of text segment in memory after it is loaded. */
#define N_TXTADDR(x) \
- (TEXT_START_ADDR + \
((N_FLAGS(x) & N_FLAGS_COFF_ENCAPSULATE) ? \
- sizeof (struct coffheader) + sizeof (struct exec) : 0))
-
-/* I have no idea what this is doing here. -- gnu@toad.com 20Mar90
- Perhaps it is to give a size that is acceptable to any machine? */
-#undef SEGMENT_SIZE
+ sizeof (struct coffheader) + sizeof (struct exec) : 0)
#define SEGMENT_SIZE 0x400000
#define N_DATADDR(x) \
((N_FLAGS(x) & N_FLAGS_COFF_ENCAPSULATE) ? \
(SEGMENT_SIZE + ((N_TXTADDR(x)+(x).a_text-1) & ~(SEGMENT_SIZE-1))) : \
(N_TXTADDR(x)+(x).a_text))
-
-#endif /* A_OUT_ENCAP_H_SEEN */
projects / thirdparty / binutils-gdb.git / blobdiff