Support for xcoff64

1 files changed, 180 insertions, 86 deletions

diff --git a/include/coff/rs6000.h b/include/coff/rs6000.h
index afddc7657..0c3486114 100644
--- a/include/coff/rs6000.h
+++ b/include/coff/rs6000.h
@@ -1,5 +1,5 @@
 /* IBM RS/6000 "XCOFF" file definitions for BFD.
-   Copyright 1990, 1991, 1993, 1994, 1995 Free Software Foundation, Inc.
+   Copyright (C) 1990, 1991 Free Software Foundation, Inc.
    FIXME: Can someone provide a transliteration of this name into ASCII?
    Using the following chars caused a compiler warning on HIUX (so I replaced
    them with octal escapes), and isn't useful without an understanding of what
@@ -7,10 +7,17 @@
    Written by Mimi Ph\373\364ng-Th\345o V\365 of IBM
    and John Gilmore of Cygnus Support.  */
 
-#define DO_NOT_DEFINE_AOUTHDR
-#define DO_NOT_DEFINE_AUXENT
-#define L_LNNO_SIZE 2
-#include "coff/external.h"
+/********************** FILE HEADER **********************/
+
+struct external_filehdr {
+	char f_magic[2];	/* magic number			*/
+	char f_nscns[2];	/* number of sections		*/
+	char f_timdat[4];	/* time & date stamp		*/
+	char f_symptr[4];	/* file pointer to symtab	*/
+	char f_nsyms[4];	/* number of symtab entries	*/
+	char f_opthdr[2];	/* sizeof(optional hdr)		*/
+	char f_flags[2];	/* flags			*/
+};
 
         /* IBM RS/6000 */
 #define U802WRMAGIC     0730    /* writeable text segments **chh**      */
@@ -21,8 +28,13 @@
 	((x).f_magic != U802ROMAGIC && (x).f_magic != U802WRMAGIC && \
 	 (x).f_magic != U802TOCMAGIC)
 
+#define	FILHDR	struct external_filehdr
+#define	FILHSZ	20
+
+
 /********************** AOUT "OPTIONAL HEADER" **********************/
 
+
 typedef struct 
 {
   unsigned char	magic[2];	/* type of file			*/
@@ -54,115 +66,149 @@ AOUTHDR;
 #define SMALL_AOUTSZ (28)
 #define AOUTHDRSZ 72
 
-#define	RS6K_AOUTHDR_OMAGIC	0x0107	/* old: text & data writeable */
-#define	RS6K_AOUTHDR_NMAGIC	0x0108	/* new: text r/o, data r/w */
-#define	RS6K_AOUTHDR_ZMAGIC	0x010B	/* paged: text r/o, both page-aligned */
+/********************** SECTION HEADER **********************/
 
-/* More names of "special" sections.  */
-#define _PAD	".pad"
-#define _LOADER	".loader"
 
-/* XCOFF uses a special .loader section with type STYP_LOADER.  */
-#define STYP_LOADER 0x1000
-
-/* XCOFF uses a special .debug section with type STYP_DEBUG.  */
-#define STYP_DEBUG 0x2000
-
-/* XCOFF handles line number or relocation overflow by creating
-   another section header with STYP_OVRFLO set.  */
-#define STYP_OVRFLO 0x8000
+struct external_scnhdr {
+	char		s_name[8];	/* section name			*/
+	char		s_paddr[4];	/* physical address, aliased s_nlib */
+	char		s_vaddr[4];	/* virtual address		*/
+	char		s_size[4];	/* section size			*/
+	char		s_scnptr[4];	/* file ptr to raw data for section */
+	char		s_relptr[4];	/* file ptr to relocation	*/
+	char		s_lnnoptr[4];	/* file ptr to line numbers	*/
+	char		s_nreloc[2];	/* number of relocation entries	*/
+	char		s_nlnno[2];	/* number of line number entries*/
+	char		s_flags[4];	/* flags			*/
+};
 
-union external_auxent
-{
-  struct
-  {
-    char x_tagndx[4];	/* str, un, or enum tag indx */
+#define	SCNHDR	struct external_scnhdr
+#define	SCNHSZ	40
+
+/********************** LINE NUMBERS **********************/
+
+/* 1 line number entry for every "breakpointable" source line in a section.
+ * Line numbers are grouped on a per function basis; first entry in a function
+ * grouping will have l_lnno = 0 and in place of physical address will be the
+ * symbol table index of the function name.
+ */
+struct external_lineno {
+	union {
+		char l_symndx[4];	/* function name symbol index, iff l_lnno == 0*/
+		char l_paddr[4];	/* (physical) address of line number	*/
+	} l_addr;
+	char l_lnno[2];	/* line number		*/
+};
 
-    union
-    {
-      struct
-      {
-	char  x_lnno[2]; /* declaration line number */
-	char  x_size[2]; /* str/union/array size */
-      } x_lnsz;
 
-      char x_fsize[4];	/* size of function */
+#define	LINENO	struct external_lineno
+#define	LINESZ	6
 
-    } x_misc;
 
-    union
-    {
-      struct 		/* if ISFCN, tag, or .bb */
-      {
-	char x_lnnoptr[4];	/* ptr to fcn line # */
-	char x_endndx[4];	/* entry ndx past block end */
-      } x_fcn;
+/********************** SYMBOLS **********************/
 
-      struct 		/* if ISARY, up to 4 dimen. */
-      {
-	char x_dimen[E_DIMNUM][2];
-      } x_ary;
+#define E_SYMNMLEN	8	/* # characters in a symbol name	*/
+#define E_FILNMLEN	14	/* # characters in a file name		*/
+#define E_DIMNUM	4	/* # array dimensions in auxiliary entry */
 
-    } x_fcnary;
+struct external_syment 
+{
+  union {
+    char e_name[E_SYMNMLEN];
+    struct {
+      char e_zeroes[4];
+      char e_offset[4];
+    } e;
+  } e;
+  char e_value[4];
+  char e_scnum[2];
+  char e_type[2];
+  char e_sclass[1];
+  char e_numaux[1];
+};
 
-    char x_tvndx[2];		/* tv index */
 
-  } x_sym;
 
-  union
-  {
-    char x_fname[E_FILNMLEN];
+#define N_BTMASK	(017)
+#define N_TMASK		(060)
+#define N_BTSHFT	(4)
+#define N_TSHIFT	(2)
+  
+
+union external_auxent {
+	struct {
+		char x_tagndx[4];	/* str, un, or enum tag indx */
+		union {
+			struct {
+			    char  x_lnno[2]; /* declaration line number */
+			    char  x_size[2]; /* str/union/array size */
+			} x_lnsz;
+			char x_fsize[4];	/* size of function */
+		} x_misc;
+		union {
+			struct {		/* if ISFCN, tag, or .bb */
+			    char x_lnnoptr[4];	/* ptr to fcn line # */
+			    char x_endndx[4];	/* entry ndx past block end */
+			} x_fcn;
+			struct {		/* if ISARY, up to 4 dimen. */
+			    char x_dimen[E_DIMNUM][2];
+			} x_ary;
+		} x_fcnary;
+		char x_tvndx[2];		/* tv index */
+	} x_sym;
+
+	union {
+		char x_fname[E_FILNMLEN];
+		struct {
+			char x_zeroes[4];
+			char x_offset[4];
+		} x_n;
+	} x_file;
+
+	struct {
+		char x_scnlen[4];			/* section length */
+		char x_nreloc[2];	/* # relocation entries */
+		char x_nlinno[2];	/* # line numbers */
+	} x_scn;
+
+        struct {
+		char x_tvfill[4];	/* tv fill value */
+		char x_tvlen[2];	/* length of .tv */
+		char x_tvran[2][2];	/* tv range */
+	} x_tv;		/* info about .tv section (in auxent of symbol .tv)) */
+
+	struct {
+		unsigned char x_scnlen[4];
+		unsigned char x_parmhash[4];
+		unsigned char x_snhash[2];
+		unsigned char x_smtyp[1];
+		unsigned char x_smclas[1];
+		unsigned char x_stab[4];
+		unsigned char x_snstab[2];
+	} x_csect;
 
-    struct
-    {
-      char x_zeroes[4];
-      char x_offset[4];
-    } x_n;
-
-  } x_file;
-
-  struct
-  {
-    char x_scnlen[4];			/* section length */
-    char x_nreloc[2];	/* # relocation entries */
-    char x_nlinno[2];	/* # line numbers */
-  } x_scn;
-
-  struct
-  {
-    char x_tvfill[4];	/* tv fill value */
-    char x_tvlen[2];	/* length of .tv */
-    char x_tvran[2][2];	/* tv range */
-  } x_tv;		/* info about .tv section (in auxent of symbol .tv)) */
-
-  struct
-  {
-    unsigned char x_scnlen[4];
-    unsigned char x_parmhash[4];
-    unsigned char x_snhash[2];
-    unsigned char x_smtyp[1];
-    unsigned char x_smclas[1];
-    unsigned char x_stab[4];
-    unsigned char x_snstab[2];
-  } x_csect;
 };
 
+#define	SYMENT	struct external_syment
+#define	SYMESZ	18	
 #define	AUXENT	union external_auxent
 #define	AUXESZ	18
-
 #define DBXMASK 0x80		/* for dbx storage mask */
 #define SYMNAME_IN_DEBUG(symptr) ((symptr)->n_sclass & DBXMASK)
 
+
+
 /********************** RELOCATION DIRECTIVES **********************/
 
-struct external_reloc
-{
+
+struct external_reloc {
   char r_vaddr[4];
   char r_symndx[4];
   char r_size[1];
   char r_type[1];
 };
 
+
 #define RELOC struct external_reloc
 #define RELSZ 10
 
@@ -171,3 +217,51 @@ struct external_reloc
 #define DEFAULT_TEXT_SECTION_ALIGNMENT 4
 /* For new sections we havn't heard of before */
 #define DEFAULT_SECTION_ALIGNMENT 4
+
+/* The ldhdr structure.  This appears at the start of the .loader
+   section.  */
+
+struct external_ldhdr
+{
+  bfd_byte l_version[4];
+  bfd_byte l_nsyms[4];
+  bfd_byte l_nreloc[4];
+  bfd_byte l_istlen[4];
+  bfd_byte l_nimpid[4];
+  bfd_byte l_impoff[4];
+  bfd_byte l_stlen[4];
+  bfd_byte l_stoff[4];
+};
+
+#define LDHDRSZ (8 * 4)
+
+struct external_ldsym
+{
+  union
+    {
+      bfd_byte _l_name[SYMNMLEN];
+      struct
+	{
+	  bfd_byte _l_zeroes[4];
+	  bfd_byte _l_offset[4];
+	} _l_l;
+    } _l;
+  bfd_byte l_value[4];
+  bfd_byte l_scnum[2];
+  bfd_byte l_smtype[1];
+  bfd_byte l_smclas[1];
+  bfd_byte l_ifile[4];
+  bfd_byte l_parm[4];
+};
+
+#define LDSYMSZ (8 + 3 * 4 + 2 + 2)
+
+struct external_ldrel
+{
+  bfd_byte l_vaddr[4];
+  bfd_byte l_symndx[4];
+  bfd_byte l_rtype[2];
+  bfd_byte l_rsecnm[2];
+};
+
+#define LDRELSZ (2 * 4 + 2 * 2)