Initial revision

5 files changed, 335 insertions, 0 deletions

diff --git a/include/aout/encap.h b/include/aout/encap.h
new file mode 100644
index 0000000..cebedf3
--- /dev/null
+++ b/include/aout/encap.h
@@ -0,0 +1,135 @@
+/* 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+   This file is obsolete.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 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.  */
+
+/*
+ * 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,
+ * there is no symbol table, relocation, or line numbers.
+ *
+ * A normal bsd header (struct exec) is placed after the coff headers,
+ * and before the real text.  I defined a the new fields 'a_machtype'
+ * and a_flags.  If a_machtype is M_386, and a_flags & A_ENCAP is
+ * true, then the bsd header is preceeded by a coff header.  Macros
+ * 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.
+ */
+
+#define N_FLAGS_COFF_ENCAPSULATE 0x20 /* coff header precedes bsd header */
+
+/* Describe the COFF header used for encapsulation.  */
+
+struct coffheader
+{
+  /* filehdr */
+  unsigned short f_magic;
+  unsigned short f_nscns;
+  long f_timdat;
+  long f_symptr;
+  long f_nsyms;
+  unsigned short f_opthdr;
+  unsigned short f_flags;
+  /* aouthdr */
+  short magic;
+  short vstamp;
+  long tsize;
+  long dsize;
+  long bsize;
+  long entry;
+  long text_start;
+  long data_start;
+  struct coffscn
+    {
+      char s_name[8];
+      long s_paddr;
+      long s_vaddr;
+      long s_size;
+      long s_scnptr;
+      long s_relptr;
+      long s_lnnoptr;
+      unsigned short s_nreloc;
+      unsigned short s_nlnno;
+      long s_flags;
+    } scns[3];
+};
+
+/* Describe some of the parameters of the encapsulation,
+   including how to find the encapsulated BSD header.  */
+
+/* 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!!?  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 ? sizeof(struct coffheader) : 0)
+#else
+#define HEADER_OFFSET(f) 0
+#endif
+
+#define HEADER_SEEK(f) (fseek ((f), HEADER_OFFSET((f)), 1))
+
+/* Describe the characteristics of the BSD header
+   that appears inside the encapsulation.  */
+
+/* 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
+   layout and the virtual memory layout page-aligned.
+
+   Non-encapsulated a.out files that are linked ZMAGIC have a text
+   segment that starts at 0 and an N_TXTADR similarly offset to 0.
+   They too are page-aligned with each other, but they include the
+   a.out header as part of the text. 
+
+   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) : 0)
+
+/* Address of text segment in memory after it is loaded.  */
+#define N_TXTADDR(x) \
+	((N_FLAGS(x) & N_FLAGS_COFF_ENCAPSULATE) ? \
+	 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))
diff --git a/include/aout/host.h b/include/aout/host.h
new file mode 100644
index 0000000..5d3488a
--- /dev/null
+++ b/include/aout/host.h
@@ -0,0 +1,22 @@
+/* Parameters about the a.out format, based on the host system on which
+   the program is compiled.  */
+
+/* Address of data segment in memory after it is loaded.
+   It is up to you to define SEGMENT_SIZE
+   on machines not listed here.  */
+#ifndef SEGMENT_SIZE
+#if defined(hp300) || defined(pyr)
+#define SEGMENT_SIZE page_size
+#endif
+#ifdef	sony
+#define	SEGMENT_SIZE	0x1000
+#endif	/* Sony.  */
+#ifdef is68k
+#define SEGMENT_SIZE 0x20000
+#endif
+#if defined(m68k) && defined(PORTAR)
+#define PAGE_SIZE 0x400
+#define SEGMENT_SIZE PAGE_SIZE
+#endif
+#endif /*!defined(SEGMENT_SIZE)*/
+
diff --git a/include/aout/hp.h b/include/aout/hp.h
new file mode 100644
index 0000000..dbd2af9
--- /dev/null
+++ b/include/aout/hp.h
@@ -0,0 +1,82 @@
+/* Special version of <a.out.h> for use under hp-ux.
+   Copyright 1988, 1991 Free Software Foundation, Inc.
+
+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.  */
+
+/* THIS FILE IS OBSOLETE.  It needs to be revised as a variant "external"
+   a.out format for use with BFD.  */
+
+/* The `exec' structure and overall layout must be close to HP's when
+   we are running on an HP system, otherwise we will not be able to
+   execute the resulting file. */
+
+/* Allow this file to be included twice. */
+#ifndef __GNU_EXEC_MACROS__
+
+struct exec
+{
+  unsigned short a_machtype;	/* machine type */
+  unsigned short a_magic;	/* magic number */
+  unsigned long a_spare1;
+  unsigned long a_spare2;
+  unsigned long a_text;		/* length of text, in bytes */
+  unsigned long a_data;		/* length of data, in bytes */
+  unsigned long a_bss;		/* length of uninitialized data area for file, in bytes */
+  unsigned long a_trsize;	/* length of relocation info for text, in bytes */
+  unsigned long a_drsize;	/* length of relocation info for data, in bytes */
+  unsigned long a_spare3;	/* HP = pascal interface size */
+  unsigned long a_spare4;	/* HP = symbol table size */
+  unsigned long a_spare5;	/* HP = debug name table size */
+  unsigned long a_entry;	/* start address */
+  unsigned long a_spare6;	/* HP = source line table size */
+  unsigned long a_spare7;	/* HP = value table size */
+  unsigned long a_syms;		/* length of symbol table data in file, in bytes */
+  unsigned long a_spare8;
+};
+
+/* Tell a.out.gnu.h not to define `struct exec'.  */
+#define __STRUCT_EXEC_OVERRIDE__
+
+#include "../a.out.gnu.h"
+
+#undef N_MAGIC
+#undef N_MACHTYPE
+#undef N_FLAGS
+#undef N_SET_INFO
+#undef N_SET_MAGIC
+#undef N_SET_MACHTYPE
+#undef N_SET_FLAGS
+
+#define N_MAGIC(exec) ((exec) . a_magic)
+#define N_MACHTYPE(exec) ((exec) . a_machtype)
+#define N_SET_MAGIC(exec, magic) (((exec) . a_magic) = (magic))
+#define N_SET_MACHTYPE(exec, machtype) (((exec) . a_machtype) = (machtype))
+
+#undef N_BADMAG
+#define N_BADMAG(x) ((_N_BADMAG (x)) || (_N_BADMACH (x)))
+
+#define _N_BADMACH(x)							\
+(((N_MACHTYPE (x)) != HP9000S200_ID) &&					\
+ ((N_MACHTYPE (x)) != HP98x6_ID))
+
+#define HP98x6_ID 0x20A
+#define HP9000S200_ID 0x20C
+
+#undef _N_HDROFF
+#define _N_HDROFF(x) (SEGMENT_SIZE - (sizeof (struct exec)))
+
+#define SEGMENT_SIZE 0x1000
+
+#endif /* __GNU_EXEC_MACROS__ */
diff --git a/include/aout/reloc.h b/include/aout/reloc.h
new file mode 100644
index 0000000..1811b73
--- /dev/null
+++ b/include/aout/reloc.h
@@ -0,0 +1,66 @@
+/* reloc.h -- Header file for relocation information.
+   Copyright 1989-1991  Free Software Foundation, Inc.
+
+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.  */
+
+/* Relocation types for a.out files using reloc_info_extended
+   (SPARC and AMD 29000). */
+
+#ifndef _RELOC_H_READ_
+#define _RELOC_H_READ_ 1
+
+enum reloc_type
+  {
+    RELOC_8,        RELOC_16,        RELOC_32, /* simple relocations */
+    RELOC_DISP8,    RELOC_DISP16,    RELOC_DISP32, /* pc-rel displacement */
+    RELOC_WDISP30,  RELOC_WDISP22,
+    RELOC_HI22,     RELOC_22,
+    RELOC_13,       RELOC_LO10,
+    RELOC_SFA_BASE, RELOC_SFA_OFF13,
+    RELOC_BASE10,   RELOC_BASE13,    RELOC_BASE22, /* P.I.C. (base-relative) */
+    RELOC_PC10,     RELOC_PC22,	/* for some sort of pc-rel P.I.C. (?) */
+    RELOC_JMP_TBL,		/* P.I.C. jump table */
+    RELOC_SEGOFF16,		/* reputedly for shared libraries somehow */
+    RELOC_GLOB_DAT,  RELOC_JMP_SLOT, RELOC_RELATIVE,
+    RELOC_11,
+    RELOC_WDISP2_14,
+    RELOC_WDISP19,
+    RELOC_HHI22,
+    RELOC_HLO10,
+    
+    /* 29K relocation types */
+    RELOC_JUMPTARG, RELOC_CONST,     RELOC_CONSTH,
+    
+    RELOC_WDISP14, RELOC_WDISP21,
+    
+    NO_RELOC
+    };
+
+#define	RELOC_TYPE_NAMES \
+"8",		"16",		"32",		"DISP8",	\
+"DISP16",	"DISP32",	"WDISP30",	"WDISP22",	\
+"HI22",		"22",		"13",		"LO10",		\
+"SFA_BASE",	"SFAOFF13",	"BASE10",	"BASE13",	\
+"BASE22",	"PC10",		"PC22",		"JMP_TBL",	\
+"SEGOFF16",	"GLOB_DAT",	"JMP_SLOT",	"RELATIVE",	\
+"11",		"WDISP2_14",	"WDISP19", 	"HHI22",	\
+"HLO10",							\
+"JUMPTARG",	"CONST",	"CONSTH",	"WDISP14",	\
+"WDISP21",	\
+"NO_RELOC"
+
+#endif /* _RELOC_H_READ_ */
+
+/* end of reloc.h */
diff --git a/include/aout/sun4.h b/include/aout/sun4.h
new file mode 100644
index 0000000..5ad4845
--- /dev/null
+++ b/include/aout/sun4.h
@@ -0,0 +1,30 @@
+/* SPARC-specific values for a.out files */
+
+#define PAGE_SIZE	0x2000		/* 8K.  aka NBPG in <sys/param.h> */
+/* Note that some SPARCs have 4K pages, some 8K, some others.  */
+
+#define SEG_SIZE_SPARC	PAGE_SIZE
+#define	SEG_SIZE_SUN3	0x20000		/* Resolution of r/w protection hw */
+
+#define TEXT_START_ADDR	PAGE_SIZE	/* Location 0 is not accessible */
+#define N_HEADER_IN_TEXT(x) 1
+
+/* Non-default definitions of the accessor macros... */
+
+/* Segment size varies on Sun-3 versus Sun-4.  */
+
+#define N_SEGSIZE(x)	(N_MACHTYPE(x) == M_SPARC?	SEG_SIZE_SPARC:	\
+			 N_MACHTYPE(x) == M_68020?	SEG_SIZE_SUN3:	\
+			/* Guess? */			PAGE_SIZE)
+
+/* Virtual Address of text segment from the a.out file.  For OMAGIC,
+   (almost always "unlinked .o's" these days), should be zero.
+   Sun added a kludge so that shared libraries linked ZMAGIC get
+   an address of zero if a_entry (!!!) is lower than the otherwise
+   expected text address.  These kludges have gotta go!
+   For linked files, should reflect reality if we know it.  */
+
+#define N_TXTADDR(x) \
+    (N_MAGIC(x)==OMAGIC? 0 \
+     : (N_MAGIC(x) == ZMAGIC && (x).a_entry < TEXT_START_ADDR)? 0 \
+     : TEXT_START_ADDR+EXEC_BYTES_SIZE)