Add XCOFF64 support.

	bfd:
	* Makefile.am (coff64-rs6000.lo): New rule.
	* Makefile.in: Regenerate.
	* coff-rs6000.c (xcoff_mkobject, xcoff_copy_private_bfd_data,
	xcoff_is_local_label_name, xcoff_rtype2howto,
	xcoff_reloc_type_lookup, xcoff_slurp_armap, xcoff_archive_p,
	xcoff_read_ar_hdr, xcoff_openr_next_archived_file, xcoff_write_armap,
	xcoff_write_archive_contents): No longer static, and prefix with _bfd_.
	(NO_COFF_SYMBOLS): Define.
	(xcoff64_swap_sym_in, xcoff64_swap_sym_out, xcoff64_swap_aux_in,
	xcoff64_swap_aux_out): New functions; handle xcoff symbol tables
	internally.
	(MINUS_ONE): New macro.
	(xcoff_howto_tabl, xcoff_reloc_type_lookup): Add 64 bit POS
	relocation.
	(coff_SWAP_sym_in, coff_SWAP_sym_out, coff_SWAP_aux_in,
	coff_SWAP_aux_out): Map to the new functions.
	* coff64-rs6000.c: New file.
	* libcoff.h (bfd_coff_backend_data): Add new fields
	_bfd_coff_force_symnames_in_strings and
	_bfd_coff_debug_string_prefix_length.
	(bfd_coff_force_symnames_in_strings,
	bfd_coff_debug_string_prefix_length): New macros for above fields.
	* coffcode.h (coff_set_arch_mach_hook): Handle XCOFF64 magic.
	Set machine to 620 for XCOFF64.  Use bfd_coff_swap_sym_in instead
	of using coff_swap_sym_in directly.
	(FORCE_SYMNAMES_IN_STRINGS): New macro, defined for XCOFF64.
	(coff_set_flags) Set magic for XCOFF64.
	(coff_compute_section_file_positions): Add symbol name length to
	string section length if bfd_coff_debug_string_prefix_length is
	true.
	(coff_write_object_contents): Don't do reloc overflow for XCOFF64.
	(coff_slurp_line_table): Use bfd_coff_swap_lineno_in instead of
	using coff_swap_lineno_in directly.
	(bfd_coff_backend_data): Add _bfd_coff_force_symnames_in_strings
	and _bfd_coff_debug_string_prefix_length fields.
	* coffgen.c (coff_fix_symbol_name, coff_write_symbols): Force
	symbol names into strings table when
	bfd_coff_force_symnames_in_strings is true.
	* coffswap.h (MAX_SCNHDR_NRELOC, MAX_SCNHDR_NLNNO, GET_RELOC_VADDR,
	SET_RELOC_VADDR): New macros.
	(coff_swap_reloc_in, coff_swap_reloc_out): Use above macros.
	(coff_swap_aux_in, coff_swap_aux_out): Remove RS6000COFF_C
	code.
	(coff_swap_aouthdr_in, coff_swap_aouthdr_out): Handle XCOFF64
	changes within RS6000COFF_C specific code.
	(coff_swap_scnhdr_out): Use PUT_SCNHDR_NLNNO, PUT_SCNHDR_NRELOC,
	MAX_SCNHDR_NRELOC, and MAX_SCNHDR_NLNNO.
	* reloc.c (bfd_perform_relocation, bfd_install_relocation):
	Extend existing hack on target name.
	* xcofflink.c (XCOFF_XVECP): Extend existing hack on
	target name.
	* coff-tic54x.c (ticof): Keep up to date with new fields
	in bfd_coff_backend_data.
	* config.bfd: Add bfd_powerpc_64_arch to targ_arch and define
	targ_selvecs to include rs6000coff64_vec for rs6000.
	* configure.in: Add rs6000coff64_vec case.
 	* cpu-powerpc.c: New bfd_arch_info_type.

	gas:
	* as.c (parse_args): Allow md_parse_option to override -a listing
	option.
	* config/obj-coff.c (add_lineno): Change type of offset parameter
	from "int" to "bfd_vma."
	* config/tc-ppc.c (md_pseudo_table): Add "llong" and "machine."
	(ppc_mach, ppc_subseg_align, ppc_target_format): New.
	(ppc_change_csect): Align correctly for XCOFF64.
	(ppc_machine): New function, which discards "ppc_machine" line.
	(ppc_tc): Cons for 8 when code is 64 bit.
	(md_apply_fix3): Don't check operand->insert.  Handle 64 bit
	relocations.
	(md_parse_option): Handle -a64 and -a32.
	(ppc_xcoff64): New.
	* config/tc-ppc.h (TARGET_MACH): Define.
	(TARGET_FORMAT): Move to function.
	(SUB_SEGMENT_ALIGN): Use ppc_subseg_align.

	include:
	* include/coff/rs6k64.h: New file.

	opcodes:
	* configure.in: Add bfd_powerpc_64_arch.
	* disassemble.c (disassembler): Use print_insn_big_powerpc for
	64 bit code.

2 files changed, 240 insertions, 0 deletions

diff --git a/include/ChangeLog b/include/ChangeLog
index 82ad23f..59559ca 100644
--- a/include/ChangeLog
+++ b/include/ChangeLog
@@ -1,3 +1,7 @@
+Mon Apr 24 15:20:51 2000  Clinton Popetz  <cpopetz@cygnus.com>
+
+	* include/coff/rs6k64.h: New file.
+
 Fri Apr 21 13:20:53 2000  Richard Henderson  <rth@cygnus.com>
 			  David Mosberger  <davidm@hpl.hp.com>
 
diff --git a/include/coff/rs6k64.h b/include/coff/rs6k64.h
new file mode 100644
index 0000000..86d739c
--- /dev/null
+++ b/include/coff/rs6k64.h
@@ -0,0 +1,236 @@
+/* IBM RS/6000 "XCOFF64" file definitions for BFD.
+   Copyright (C) 2000 Free Software Foundation, Inc.  */
+
+/********************** 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[8];/* file pointer to symtab 	*/
+	char f_opthdr[2];	/* sizeof(optional hdr)		*/
+	char f_flags[2];	/* flags			*/
+	char f_nsyms[4];	/* number of symtab entries	*/
+};
+
+        /* IBM RS/6000 */
+#define U802TOC64MAGIC	0757	/* readonly text segments and TOC, XCOFF64 */
+
+#define BADMAG(x) ((x).f_magic != U802TOC64MAGIC)
+
+#define	FILHDR	struct external_filehdr
+#define	FILHSZ	24
+
+/********************** AOUT "OPTIONAL HEADER" **********************/
+
+
+typedef struct 
+{
+  unsigned char	magic[2];		/* type of file			*/
+  unsigned char	vstamp[2];		/* version stamp		*/
+  unsigned char	o_debugger[4];		/* reserved 			*/
+  unsigned char	text_start[8];	/* base of text used for this file */
+  unsigned char	data_start[8];	/* base of data used for this file */
+  unsigned char	o_toc[8];	/* address of TOC */
+  unsigned char	o_snentry[2];		/* section number of entry point */
+  unsigned char	o_sntext[2];		/* section number of .text section */
+  unsigned char	o_sndata[2];		/* section number of .data section */
+  unsigned char	o_sntoc[2];		/* section number of TOC */
+  unsigned char	o_snloader[2];		/* section number of .loader section */
+  unsigned char	o_snbss[2];		/* section number of .bss section */
+  unsigned char	o_algntext[2];		/* .text alignment */
+  unsigned char	o_algndata[2];		/* .data alignment */
+  unsigned char	o_modtype[2];		/* module type (??) */
+  unsigned char o_cputype[2];		/* cpu type */
+  unsigned char	o_resv2[4];		/* reserved 			*/
+  unsigned char	tsize[8];		/* text size bytes, padded to FW bdry */
+  unsigned char	dsize[8];		/* initialized data "  "	*/
+  unsigned char	bsize[8];		/* uninitialized data "   "	*/
+  unsigned char	entry[8];		/* entry pt.			*/
+  unsigned char	o_maxstack[8];	/* max stack size (??) 		*/
+  unsigned char o_maxdata[8];	/* max data size (??) 		*/
+  unsigned char	o_resv3[116];		/* reserved 			*/
+}
+AOUTHDR;
+
+#define AOUTSZ 220
+#define SMALL_AOUTSZ (0)
+#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 **********************/
+
+
+struct external_scnhdr {
+	char	s_name[8];		/* section name			*/
+	char	s_paddr[8];	/* physical address, aliased s_nlib */
+	char	s_vaddr[8];	/* virtual address		*/
+	char	s_size[8];	/* section size			*/
+	char	s_scnptr[8];	/* file ptr to raw data for section */
+	char	s_relptr[8];	/* file ptr to relocation	*/
+	char	s_lnnoptr[8];	/* file ptr to line numbers	*/
+	char	s_nreloc[4];	/* number of relocation entries	*/
+	char	s_nlnno[4];	/* number of line number entries*/
+	char	s_flags[4];		/* flags			*/
+	char    s_pad[4];		/* padding */  
+};
+
+/*
+ * names of "special" sections
+ */
+#define _TEXT	".text"
+#define _DATA	".data"
+#define _BSS	".bss"
+#define _PAD	".pad"
+#define _LOADER	".loader"
+
+#define	SCNHDR	struct external_scnhdr
+
+#define	SCNHSZ	72
+
+/* 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
+
+/********************** 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[8];/* function name symbol index, iff l_lnno == 0*/
+		char l_paddr[8];	/* (physical) address of line number	*/
+	} l_addr;
+	char l_lnno[4];		/* line number		*/
+};
+
+
+#define	LINENO	struct external_lineno
+
+#define	LINESZ	12
+
+
+/********************** SYMBOLS **********************/
+
+#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 */
+
+struct external_syment 
+{
+  union {
+    char e_value[8];
+  } e;
+  char e_offset[4];
+  char e_scnum[2];
+  char e_type[2];
+  char e_sclass[1];
+  char e_numaux[1];
+};
+
+
+
+#define N_BTMASK	(017)
+#define N_TMASK		(060)
+#define N_BTSHFT	(4)
+#define N_TSHIFT	(2)
+  
+
+union external_auxent {
+
+    struct {
+    	union {
+	    struct {
+		char x_lnno[4]; 	/* declaration line number */
+		char x_size[2]; 	/* str/union/array size */
+	    } x_lnsz;
+	    struct {
+		char x_lnnoptr[8];/* ptr to fcn line */
+		char x_fsize[4];	 /* size of function */
+		char x_endndx[4];	 /* entry ndx past block end */
+	    } x_fcn;
+ 	} x_fcnary;
+    } x_sym;
+         
+    union {
+	char x_fname[E_FILNMLEN];
+	struct {
+	    char x_zeroes[4];
+	    char x_offset[4];
+	    char          x_pad[6];
+	    unsigned char x_ftype[1];
+	    unsigned char x_resv[2];
+	} x_n;
+    } x_file;
+
+    struct {
+	char x_exptr[8];
+	char x_fsize[4];
+	char x_endndx[4];
+	char x_pad[1];
+    } x_except;
+
+    struct {
+	    unsigned char x_scnlen_lo[4];
+	    unsigned char x_parmhash[4];
+	    unsigned char x_snhash[2];
+	    unsigned char x_smtyp[1];
+	    unsigned char x_smclas[1];
+	    unsigned char x_scnlen_hi[4];
+	    unsigned char x_pad[1];
+    } x_csect;	
+
+    struct {
+	char x_pad[17];
+	char x_auxtype[1];
+    } x_auxtype;
+};
+
+#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)
+
+/* Values for auxtype field in XCOFF64, taken from AIX 4.3 sym.h */
+#define _AUX_EXCEPT     255
+#define _AUX_FCN        254
+#define _AUX_SYM        253
+#define _AUX_FILE       252
+#define _AUX_CSECT      251
+
+
+
+/********************** RELOCATION DIRECTIVES **********************/
+
+
+struct external_reloc {
+  char r_vaddr[8];
+  char r_symndx[4];
+  char r_size[1];
+  char r_type[1];
+};
+
+
+#define RELOC struct external_reloc
+#define RELSZ 14
+
+#define DEFAULT_DATA_SECTION_ALIGNMENT 4
+#define DEFAULT_BSS_SECTION_ALIGNMENT 4
+#define DEFAULT_TEXT_SECTION_ALIGNMENT 4
+/* For new sections we havn't heard of before */
+#define DEFAULT_SECTION_ALIGNMENT 4