-/* Support for Intel 960 COFF and Motorola 88k BCS COFF (and maybe others) */
+/* Support for the generic parts of most COFF variants, for BFD.
+ Copyright 1990, 1991, 1992, 1993, 1994 Free Software Foundation, Inc.
+ Written by Cygnus Support.
-/* Copyright (C) 1990, 1991 Free Software Foundation, Inc.
+This file is part of BFD, the Binary File Descriptor library.
-This file is part of BFD, the Binary File Diddler.
+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.
-BFD 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 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.
-BFD 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
- BFD; see the file COPYING. If not, write to the Free Software Foundation,
- 675 Mass Ave, Cambridge, MA 02139, USA.
+/*
+Most of this hacked by Steve Chamberlain,
+ sac@cygnus.com
*/
+/*
-/* $Id$ */
-/* Most of this hacked by Steve Chamberlain, steve@cygnus.com */
-
-#include "archures.h" /* Machine architectures and types */
-
-/* SUPPRESS 558 */
-/* SUPPRESS 590 */
-/* SUPPRESS 529 */
-/* SUPPRESS 530 */
-
-/* Align an address upward to a boundary, expressed as a number of bytes.
- E.g. align to an 8-byte boundary with argument of 8. */
-#define ALIGN(this, boundary) \
- ((( (this) + ((boundary) -1)) & (~((boundary)-1))))
+SECTION
+ coff backends
+
+ BFD supports a number of different flavours of coff format.
+ The major differences between formats are the sizes and
+ alignments of fields in structures on disk, and the occasional
+ extra field.
+
+ Coff in all its varieties is implemented with a few common
+ files and a number of implementation specific files. For
+ example, The 88k bcs coff format is implemented in the file
+ @file{coff-m88k.c}. This file @code{#include}s
+ @file{coff/m88k.h} which defines the external structure of the
+ coff format for the 88k, and @file{coff/internal.h} which
+ defines the internal structure. @file{coff-m88k.c} also
+ defines the relocations used by the 88k format
+ @xref{Relocations}.
+
+ The Intel i960 processor version of coff is implemented in
+ @file{coff-i960.c}. This file has the same structure as
+ @file{coff-m88k.c}, except that it includes @file{coff/i960.h}
+ rather than @file{coff-m88k.h}.
+
+SUBSECTION
+ Porting to a new version of coff
+
+ The recommended method is to select from the existing
+ implementations the version of coff which is most like the one
+ you want to use. For example, we'll say that i386 coff is
+ the one you select, and that your coff flavour is called foo.
+ Copy @file{i386coff.c} to @file{foocoff.c}, copy
+ @file{../include/coff/i386.h} to @file{../include/coff/foo.h},
+ and add the lines to @file{targets.c} and @file{Makefile.in}
+ so that your new back end is used. Alter the shapes of the
+ structures in @file{../include/coff/foo.h} so that they match
+ what you need. You will probably also have to add
+ @code{#ifdef}s to the code in @file{coff/internal.h} and
+ @file{coffcode.h} if your version of coff is too wild.
+
+ You can verify that your new BFD backend works quite simply by
+ building @file{objdump} from the @file{binutils} directory,
+ and making sure that its version of what's going on and your
+ host system's idea (assuming it has the pretty standard coff
+ dump utility, usually called @code{att-dump} or just
+ @code{dump}) are the same. Then clean up your code, and send
+ what you've done to Cygnus. Then your stuff will be in the
+ next release, and you won't have to keep integrating it.
+
+SUBSECTION
+ How the coff backend works
+
+SUBSUBSECTION
+ File layout
+
+ The Coff backend is split into generic routines that are
+ applicable to any Coff target and routines that are specific
+ to a particular target. The target-specific routines are
+ further split into ones which are basically the same for all
+ Coff targets except that they use the external symbol format
+ or use different values for certain constants.
+
+ The generic routines are in @file{coffgen.c}. These routines
+ work for any Coff target. They use some hooks into the target
+ specific code; the hooks are in a @code{bfd_coff_backend_data}
+ structure, one of which exists for each target.
+
+ The essentially similar target-specific routines are in
+ @file{coffcode.h}. This header file includes executable C code.
+ The various Coff targets first include the appropriate Coff
+ header file, make any special defines that are needed, and
+ then include @file{coffcode.h}.
+
+ Some of the Coff targets then also have additional routines in
+ the target source file itself.
+
+ For example, @file{coff-i960.c} includes
+ @file{coff/internal.h} and @file{coff/i960.h}. It then
+ defines a few constants, such as @code{I960}, and includes
+ @file{coffcode.h}. Since the i960 has complex relocation
+ types, @file{coff-i960.c} also includes some code to
+ manipulate the i960 relocs. This code is not in
+ @file{coffcode.h} because it would not be used by any other
+ target.
+
+SUBSUBSECTION
+ Bit twiddling
+
+ Each flavour of coff supported in BFD has its own header file
+ describing the external layout of the structures. There is also
+ an internal description of the coff layout, in
+ @file{coff/internal.h}. A major function of the
+ coff backend is swapping the bytes and twiddling the bits to
+ translate the external form of the structures into the normal
+ internal form. This is all performed in the
+ @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
+ elements are different sizes between different versions of
+ coff; it is the duty of the coff version specific include file
+ to override the definitions of various packing routines in
+ @file{coffcode.h}. E.g., the size of line number entry in coff is
+ sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
+ @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
+ correct one. No doubt, some day someone will find a version of
+ coff which has a varying field size not catered to at the
+ moment. To port BFD, that person will have to add more @code{#defines}.
+ Three of the bit twiddling routines are exported to
+ @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
+ and @code{coff_swap_linno_in}. @code{GDB} reads the symbol
+ table on its own, but uses BFD to fix things up. More of the
+ bit twiddlers are exported for @code{gas};
+ @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
+ @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
+ @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
+ @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
+ of all the symbol table and reloc drudgery itself, thereby
+ saving the internal BFD overhead, but uses BFD to swap things
+ on the way out, making cross ports much safer. Doing so also
+ allows BFD (and thus the linker) to use the same header files
+ as @code{gas}, which makes one avenue to disaster disappear.
+
+SUBSUBSECTION
+ Symbol reading
+
+ The simple canonical form for symbols used by BFD is not rich
+ enough to keep all the information available in a coff symbol
+ table. The back end gets around this problem by keeping the original
+ symbol table around, "behind the scenes".
+
+ When a symbol table is requested (through a call to
+ @code{bfd_canonicalize_symtab}), a request gets through to
+ @code{coff_get_normalized_symtab}. This reads the symbol table from
+ the coff file and swaps all the structures inside into the
+ internal form. It also fixes up all the pointers in the table
+ (represented in the file by offsets from the first symbol in
+ the table) into physical pointers to elements in the new
+ internal table. This involves some work since the meanings of
+ fields change depending upon context: a field that is a
+ pointer to another structure in the symbol table at one moment
+ may be the size in bytes of a structure at the next. Another
+ pass is made over the table. All symbols which mark file names
+ (<<C_FILE>> symbols) are modified so that the internal
+ string points to the value in the auxent (the real filename)
+ rather than the normal text associated with the symbol
+ (@code{".file"}).
+
+ At this time the symbol names are moved around. Coff stores
+ all symbols less than nine characters long physically
+ within the symbol table; longer strings are kept at the end of
+ the file in the string table. This pass moves all strings
+ into memory and replaces them with pointers to the strings.
+
+
+ The symbol table is massaged once again, this time to create
+ the canonical table used by the BFD application. Each symbol
+ is inspected in turn, and a decision made (using the
+ @code{sclass} field) about the various flags to set in the
+ @code{asymbol}. @xref{Symbols}. The generated canonical table
+ shares strings with the hidden internal symbol table.
+
+ Any linenumbers are read from the coff file too, and attached
+ to the symbols which own the functions the linenumbers belong to.
+
+SUBSUBSECTION
+ Symbol writing
+
+ Writing a symbol to a coff file which didn't come from a coff
+ file will lose any debugging information. The @code{asymbol}
+ structure remembers the BFD from which the symbol was taken, and on
+ output the back end makes sure that the same destination target as
+ source target is present.
+
+ When the symbols have come from a coff file then all the
+ debugging information is preserved.
+
+ Symbol tables are provided for writing to the back end in a
+ vector of pointers to pointers. This allows applications like
+ the linker to accumulate and output large symbol tables
+ without having to do too much byte copying.
+
+ This function runs through the provided symbol table and
+ patches each symbol marked as a file place holder
+ (@code{C_FILE}) to point to the next file place holder in the
+ list. It also marks each @code{offset} field in the list with
+ the offset from the first symbol of the current symbol.
+
+ Another function of this procedure is to turn the canonical
+ value form of BFD into the form used by coff. Internally, BFD
+ expects symbol values to be offsets from a section base; so a
+ symbol physically at 0x120, but in a section starting at
+ 0x100, would have the value 0x20. Coff expects symbols to
+ contain their final value, so symbols have their values
+ changed at this point to reflect their sum with their owning
+ section. This transformation uses the
+ <<output_section>> field of the @code{asymbol}'s
+ @code{asection} @xref{Sections}.
+
+ o <<coff_mangle_symbols>>
+
+ This routine runs though the provided symbol table and uses
+ the offsets generated by the previous pass and the pointers
+ generated when the symbol table was read in to create the
+ structured hierachy required by coff. It changes each pointer
+ to a symbol into the index into the symbol table of the asymbol.
+
+ o <<coff_write_symbols>>
+
+ This routine runs through the symbol table and patches up the
+ symbols from their internal form into the coff way, calls the
+ bit twiddlers, and writes out the table to the file.
-/* Align an address upward to a power of two. Argument is the power
- of two, e.g. 8-byte alignment uses argument of 3 (8 == 2^3). */
-#define i960_align(addr, align) \
- ( ((addr) + ((1<<(align))-1)) & (-1 << (align)))
+*/
-#define sp(x) bfd_h_put_x(abfd, x, &x)
+/*
+INTERNAL_DEFINITION
+ coff_symbol_type
+
+DESCRIPTION
+ The hidden information for an <<asymbol>> is described in a
+ <<combined_entry_type>>:
+
+CODE_FRAGMENT
+.
+.typedef struct coff_ptr_struct
+.{
+.
+. {* Remembers the offset from the first symbol in the file for
+. this symbol. Generated by coff_renumber_symbols. *}
+.unsigned int offset;
+.
+. {* Should the value of this symbol be renumbered. Used for
+. XCOFF C_BSTAT symbols. Set by coff_slurp_symbol_table. *}
+.unsigned int fix_value : 1;
+.
+. {* Should the tag field of this symbol be renumbered.
+. Created by coff_pointerize_aux. *}
+.unsigned int fix_tag : 1;
+.
+. {* Should the endidx field of this symbol be renumbered.
+. Created by coff_pointerize_aux. *}
+.unsigned int fix_end : 1;
+.
+. {* Should the x_csect.x_scnlen field be renumbered.
+. Created by coff_slurp_symbol_table. *}
+.unsigned int fix_scnlen : 1;
+.
+. {* The container for the symbol structure as read and translated
+. from the file. *}
+.
+.union {
+. union internal_auxent auxent;
+. struct internal_syment syment;
+. } u;
+.} combined_entry_type;
+.
+.
+.{* Each canonical asymbol really looks like this: *}
+.
+.typedef struct coff_symbol_struct
+.{
+. {* The actual symbol which the rest of BFD works with *}
+.asymbol symbol;
+.
+. {* A pointer to the hidden information for this symbol *}
+.combined_entry_type *native;
+.
+. {* A pointer to the linenumber information for this symbol *}
+.struct lineno_cache_entry *lineno;
+.
+. {* Have the line numbers been relocated yet ? *}
+.boolean done_lineno;
+.} coff_symbol_type;
-#define PUTWORD bfd_h_put_32
-#define PUTHALF bfd_h_put_16
-#ifndef I960
-#define GDB_EXPORT static
-#else
-#define GDB_EXPORT /* nothing */
-#endif
-PROTO(static void,force_indices_file_symbol_relative,(bfd *abfd,
- struct internal_syment *symtab));
+*/
+#include "coffswap.h"
\f
/* void warning(); */
-extern asection abs_section;
-
-static int
-DEFUN(get_index,(symbol),
- asymbol *symbol)
-{
- return (int) symbol->value;
-}
-
-static void
-DEFUN(set_index,(symbol, idx),
- asymbol *symbol AND
- unsigned int idx)
-{
- symbol->value = idx;
-}
-
-
-
-
-
-/* All the swapping routines:
-*/
-
-
-static void
-DEFUN(bfd_swap_reloc_in,(abfd, reloc_src, reloc_dst),
- bfd *abfd AND
- RELOC *reloc_src AND
- struct internal_reloc *reloc_dst)
-{
- reloc_dst->r_vaddr = bfd_h_get_32(abfd, reloc_src->r_vaddr);
- reloc_dst->r_symndx = bfd_h_get_32(abfd, reloc_src->r_symndx);
- reloc_dst->r_type = bfd_h_get_16(abfd, reloc_src->r_type);
-#if M88
- reloc_dst->r_offset = bfd_h_get_16(abfd, reloc_src->r_offset);
-#endif
-}
-
-
-static void
-DEFUN(bfd_swap_reloc_out,(abfd, reloc_src, reloc_dst),
- bfd *abfd AND
- struct internal_reloc *reloc_src AND
- struct external_reloc *reloc_dst)
-{
- bfd_h_put_32(abfd, reloc_src->r_vaddr, reloc_dst->r_vaddr);
- bfd_h_put_32(abfd, reloc_src->r_symndx, reloc_dst->r_symndx);
- bfd_h_put_16(abfd, reloc_src->r_type, reloc_dst->r_type);
-#if M88
- bfd_h_put_16(abfd, reloc_src->r_offset, reloc_dst->r_offset);
-#endif
-
-}
-
-static void
-DEFUN(bfd_swap_filehdr_in,(abfd, filehdr_src, filehdr_dst),
- bfd *abfd AND
- FILHDR *filehdr_src AND
- struct internal_filehdr *filehdr_dst)
-{
- filehdr_dst->f_magic = bfd_h_get_16(abfd, filehdr_src->f_magic);
- filehdr_dst->f_nscns = bfd_h_get_16(abfd,filehdr_src-> f_nscns);
- filehdr_dst->f_timdat = bfd_h_get_32(abfd,filehdr_src-> f_timdat);
- filehdr_dst->f_symptr = bfd_h_get_32(abfd,filehdr_src-> f_symptr);
- filehdr_dst->f_nsyms = bfd_h_get_32(abfd,filehdr_src-> f_nsyms);
- filehdr_dst->f_opthdr = bfd_h_get_16(abfd,filehdr_src-> f_opthdr);
- filehdr_dst->f_flags = bfd_h_get_16(abfd,filehdr_src-> f_flags);
-}
-
-GDB_EXPORT void
-DEFUN(bfd_swap_filehdr_out,(abfd, filehdr_in, filehdr_out),
- bfd *abfd AND
- struct internal_filehdr *filehdr_in AND
- FILHDR *filehdr_out)
-{
- bfd_h_put_16(abfd, filehdr_in->f_magic, filehdr_out->f_magic);
- bfd_h_put_16(abfd, filehdr_in->f_nscns, filehdr_out->f_nscns);
- bfd_h_put_32(abfd, filehdr_in->f_timdat, filehdr_out->f_timdat);
- bfd_h_put_32(abfd, filehdr_in->f_symptr, filehdr_out->f_symptr);
- bfd_h_put_32(abfd, filehdr_in->f_nsyms, filehdr_out->f_nsyms);
- bfd_h_put_16(abfd, filehdr_in->f_opthdr, filehdr_out->f_opthdr);
- bfd_h_put_16(abfd, filehdr_in->f_flags, filehdr_out->f_flags);
-}
-
-
-
-static void
-DEFUN(coff_swap_sym_in,(abfd, ext, in),
- bfd *abfd AND
- SYMENT *ext AND
- struct internal_syment *in)
-{
- if( ext->e.e_name[0] == 0) {
- in->_n._n_n._n_zeroes = 0;
- in->_n._n_n._n_offset = bfd_h_get_32(abfd, ext->e.e.e_offset);
- }
- else {
- memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN);
- }
- in->n_value = bfd_h_get_32(abfd, ext->e_value);
- in->n_scnum = bfd_h_get_16(abfd, ext->e_scnum);
- if (sizeof(ext->e_type) == 2){
- in->n_type = bfd_h_get_16(abfd, ext->e_type);
- }
- else {
- in->n_type = bfd_h_get_32(abfd, ext->e_type);
- }
- in->n_sclass = bfd_h_get_8(abfd, ext->e_sclass);
- in->n_numaux = bfd_h_get_8(abfd, ext->e_numaux);
-}
-GDB_EXPORT void
-DEFUN(coff_swap_sym_out,(abfd,in, ext),
- bfd *abfd AND
- struct internal_syment *in AND
- SYMENT *ext)
+/*
+ * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the
+ * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags().
+ * NOTE: If you add to/change this routine, you should mirror the changes
+ * in styp_to_sec_flags().
+ */
+static long
+sec_to_styp_flags (sec_name, sec_flags)
+ CONST char *sec_name;
+ flagword sec_flags;
{
- if(in->_n._n_name[0] == 0) {
- bfd_h_put_32(abfd, 0, ext->e.e.e_zeroes);
- bfd_h_put_32(abfd, in->_n._n_n._n_offset, ext->e.e.e_offset);
- }
- else {
- memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN);
- }
- bfd_h_put_32(abfd, in->n_value , ext->e_value);
- bfd_h_put_16(abfd, in->n_scnum , ext->e_scnum);
- if (sizeof(ext->e_type) == 2)
- {
- bfd_h_put_16(abfd, in->n_type , ext->e_type);
- }
- else
- {
- bfd_h_put_32(abfd, in->n_type , ext->e_type);
- }
- bfd_h_put_8(abfd, in->n_sclass , ext->e_sclass);
- bfd_h_put_8(abfd, in->n_numaux , ext->e_numaux);
-}
+ long styp_flags = 0;
-static void
-DEFUN(coff_swap_aux_in,(abfd, ext, type, class, in),
- bfd *abfd AND
- AUXENT *ext AND
- int type AND
- int class AND
- union internal_auxent *in)
-{
- switch (class) {
- case C_FILE:
- if (ext->x_file.x_fname[0] == 0) {
- in->x_file.x_n.x_zeroes = 0;
- in->x_file.x_n.x_offset = bfd_h_get_32(abfd, ext->x_file.x_n.x_offset);
+ if (!strcmp (sec_name, _TEXT))
+ {
+ styp_flags = STYP_TEXT;
}
-
- break;
- case C_STAT:
-#ifdef C_LEAFSTAT
- case C_LEAFSTAT:
+ else if (!strcmp (sec_name, _DATA))
+ {
+ styp_flags = STYP_DATA;
+#ifdef TWO_DATA_SECS
+ }
+ else if (!strcmp (sec_name, ".data2"))
+ {
+ styp_flags = STYP_DATA;
+#endif /* TWO_DATA_SECS */
+ }
+ else if (!strcmp (sec_name, _BSS))
+ {
+ styp_flags = STYP_BSS;
+#ifdef _COMMENT
+ }
+ else if (!strcmp (sec_name, _COMMENT))
+ {
+ styp_flags = STYP_INFO;
+#endif /* _COMMENT */
+#ifdef _LIB
+ }
+ else if (!strcmp (sec_name, _LIB))
+ {
+ styp_flags = STYP_LIB;
+#endif /* _LIB */
+#ifdef _LIT
+ }
+ else if (!strcmp (sec_name, _LIT))
+ {
+ styp_flags = STYP_LIT;
+#endif /* _LIT */
+ }
+ else if (!strcmp (sec_name, ".debug"))
+ {
+#ifdef STYP_DEBUG
+ styp_flags = STYP_DEBUG;
+#else
+ styp_flags = STYP_INFO;
#endif
- case C_HIDDEN:
- if (type == T_NULL) {
- in->x_scn.x_scnlen = bfd_h_get_32(abfd, ext->x_scn.x_scnlen);
- in->x_scn.x_nreloc = bfd_h_get_16(abfd, ext->x_scn.x_nreloc);
- in->x_scn.x_nlinno = bfd_h_get_16(abfd, ext->x_scn.x_nlinno);
- break;
}
- default:
- in->x_sym.x_tagndx = bfd_h_get_32(abfd, ext->x_sym.x_tagndx);
- in->x_sym.x_tvndx = bfd_h_get_16(abfd, ext->x_sym.x_tvndx);
-
- if (ISARY(type) || class == C_BLOCK) {
- in->x_sym.x_fcnary.x_ary.x_dimen[0] = bfd_h_get_16(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[0]);
- in->x_sym.x_fcnary.x_ary.x_dimen[1] = bfd_h_get_16(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[1]);
- in->x_sym.x_fcnary.x_ary.x_dimen[2] = bfd_h_get_16(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[2]);
- in->x_sym.x_fcnary.x_ary.x_dimen[3] = bfd_h_get_16(abfd, ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
+ else if (!strcmp (sec_name, ".stab")
+ || !strncmp (sec_name, ".stabstr", 8))
+ {
+ styp_flags = STYP_INFO;
+ }
+ /* Try and figure out what it should be */
+ else if (sec_flags & SEC_CODE)
+ {
+ styp_flags = STYP_TEXT;
}
- else {
- in->x_sym.x_fcnary.x_fcn.x_lnnoptr = bfd_h_get_32(abfd, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
- in->x_sym.x_fcnary.x_fcn.x_endndx = bfd_h_get_32(abfd, ext->x_sym.x_fcnary.x_fcn.x_endndx);
+ else if (sec_flags & SEC_DATA)
+ {
+ styp_flags = STYP_DATA;
}
- if (ISFCN(type)) {
- in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, ext->x_sym.x_misc.x_fsize);
+ else if (sec_flags & SEC_READONLY)
+ {
+#ifdef STYP_LIT /* 29k readonly text/data section */
+ styp_flags = STYP_LIT;
+#else
+ styp_flags = STYP_TEXT;
+#endif /* STYP_LIT */
}
- else {
- in->x_sym.x_misc.x_lnsz.x_lnno = bfd_h_get_16(abfd, ext->x_sym.x_misc.x_lnsz.x_lnno);
- in->x_sym.x_misc.x_lnsz.x_size = bfd_h_get_16(abfd, ext->x_sym.x_misc.x_lnsz.x_size);
+ else if (sec_flags & SEC_LOAD)
+ {
+ styp_flags = STYP_TEXT;
}
- }
-}
+ else if (sec_flags & SEC_ALLOC)
+ {
+ styp_flags = STYP_BSS;
+ }
+
+#ifdef STYP_NOLOAD
+ if (sec_flags & SEC_NEVER_LOAD)
+ styp_flags |= STYP_NOLOAD;
+#endif
-GDB_EXPORT void
-DEFUN(coff_swap_aux_out,(abfd, in, type, class, ext),
- bfd *abfd AND
- union internal_auxent *in AND
- int type AND
- int class AND
- AUXENT *ext)
+ return (styp_flags);
+}
+/*
+ * Return a word with SEC_* flags set to represent the incoming
+ * STYP_* flags (from scnhdr.s_flags). The inverse of this
+ * function is sec_to_styp_flags().
+ * NOTE: If you add to/change this routine, you should mirror the changes
+ * in sec_to_styp_flags().
+ */
+static flagword
+styp_to_sec_flags (abfd, hdr)
+ bfd * abfd;
+ PTR hdr;
{
- switch (class) {
- case C_FILE:
- if (in->x_file.x_fname[0] == 0) {
- PUTWORD(abfd, 0, ext->x_file.x_n.x_zeroes );
- PUTWORD(abfd, in->x_file.x_n.x_offset, ext->x_file.x_n.x_offset);
+ struct internal_scnhdr *internal_s = (struct internal_scnhdr *) hdr;
+ long styp_flags = internal_s->s_flags;
+ flagword sec_flags = 0;
+
+#ifdef STYP_NOLOAD
+ if (styp_flags & STYP_NOLOAD)
+ {
+ sec_flags |= SEC_NEVER_LOAD;
}
+#endif /* STYP_NOLOAD */
- break;
- case C_STAT:
-#ifdef C_LEAFSTAT
- case C_LEAFSTAT:
-#endif
- case C_HIDDEN:
- if (type == T_NULL) {
- PUTWORD(abfd, in->x_scn.x_scnlen, ext->x_scn.x_scnlen);
- PUTWORD(abfd, in->x_scn.x_nreloc, ext->x_scn.x_nreloc);
- PUTWORD(abfd, in->x_scn.x_nlinno, ext->x_scn.x_nlinno);
- break;
+ /* For 386 COFF, at least, an unloadable text or data section is
+ actually a shared library section. */
+ if (styp_flags & STYP_TEXT)
+ {
+ if (sec_flags & SEC_NEVER_LOAD)
+ sec_flags |= SEC_CODE | SEC_SHARED_LIBRARY;
+ else
+ sec_flags |= SEC_CODE | SEC_LOAD | SEC_ALLOC;
}
- default:
- PUTWORD(abfd, in->x_sym.x_tagndx, ext->x_sym.x_tagndx);
- PUTWORD(abfd, in->x_sym.x_tvndx , ext->x_sym.x_tvndx);
-
- if (ISARY(type) || class == C_BLOCK) {
- bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0],ext->x_sym.x_fcnary.x_ary.x_dimen[0]);
- bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[1],ext->x_sym.x_fcnary.x_ary.x_dimen[1]);
- bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[2],ext->x_sym.x_fcnary.x_ary.x_dimen[2]);
- bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[3],ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
+ else if (styp_flags & STYP_DATA)
+ {
+ if (sec_flags & SEC_NEVER_LOAD)
+ sec_flags |= SEC_DATA | SEC_SHARED_LIBRARY;
+ else
+ sec_flags |= SEC_DATA | SEC_LOAD | SEC_ALLOC;
}
- else {
- PUTWORD(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext->x_sym.x_fcnary.x_fcn.x_lnnoptr);
- PUTWORD(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx, ext->x_sym.x_fcnary.x_fcn.x_endndx);
+ else if (styp_flags & STYP_BSS)
+ {
+#ifdef BSS_NOLOAD_IS_SHARED_LIBRARY
+ if (sec_flags & SEC_NEVER_LOAD)
+ sec_flags |= SEC_ALLOC | SEC_SHARED_LIBRARY;
+ else
+#endif
+ sec_flags |= SEC_ALLOC;
}
- if (ISFCN(type)) {
- PUTWORD(abfd, in->x_sym.x_misc.x_fsize, ext->x_sym.x_misc.x_fsize);
+ else if (styp_flags & STYP_INFO)
+ {
+ /* This should be marked as SEC_DEBUGGING, but that can't be
+ done until we make sure that strip can still work. strip
+ will probably have to preserve the same number of sections to
+ ensure that the section vma matches the section file
+ position. */
}
- else {
- bfd_h_put_16(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext->x_sym.x_misc.x_lnsz.x_lnno);
- bfd_h_put_16(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext->x_sym.x_misc.x_lnsz.x_size);
+ else
+ {
+ sec_flags |= SEC_ALLOC | SEC_LOAD;
}
- }
-}
-GDB_EXPORT void
-DEFUN(coff_swap_lineno_in,(abfd, ext, in),
- bfd *abfd AND
- LINENO *ext AND
- struct internal_lineno *in)
-{
- in->l_addr.l_symndx = bfd_h_get_32(abfd, ext->l_addr.l_symndx);
- in->l_lnno = bfd_h_get_16(abfd, ext->l_lnno);
-}
+#ifdef STYP_LIT /* A29k readonly text/data section type */
+ if ((styp_flags & STYP_LIT) == STYP_LIT)
+ {
+ sec_flags = (SEC_LOAD | SEC_ALLOC | SEC_READONLY);
+ }
+#endif /* STYP_LIT */
+#ifdef STYP_OTHER_LOAD /* Other loaded sections */
+ if (styp_flags & STYP_OTHER_LOAD)
+ {
+ sec_flags = (SEC_LOAD | SEC_ALLOC);
+ }
+#endif /* STYP_SDATA */
-GDB_EXPORT void
-DEFUN(coff_swap_lineno_out,(abfd, in, ext),
- bfd *abfd AND
- struct internal_lineno *in AND
- struct external_lineno *ext)
-{
- PUTWORD(abfd, in->l_addr.l_symndx, ext->l_addr.l_symndx);
- PUTHALF(abfd, in->l_lnno, ext->l_lnno);
+ return (sec_flags);
}
+#define get_index(symbol) ((long) (symbol)->udata)
+/*
+INTERNAL_DEFINITION
+ bfd_coff_backend_data
+
+CODE_FRAGMENT
+
+Special entry points for gdb to swap in coff symbol table parts:
+.typedef struct
+.{
+. void (*_bfd_coff_swap_aux_in) PARAMS ((
+. bfd *abfd,
+. PTR ext,
+. int type,
+. int class,
+. int indaux,
+. int numaux,
+. PTR in));
+.
+. void (*_bfd_coff_swap_sym_in) PARAMS ((
+. bfd *abfd ,
+. PTR ext,
+. PTR in));
+.
+. void (*_bfd_coff_swap_lineno_in) PARAMS ((
+. bfd *abfd,
+. PTR ext,
+. PTR in));
+.
+
+Special entry points for gas to swap out coff parts:
+
+. unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
+. bfd *abfd,
+. PTR in,
+. int type,
+. int class,
+. int indaux,
+. int numaux,
+. PTR ext));
+.
+. unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
+. bfd *abfd,
+. PTR in,
+. PTR ext));
+.
+. unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
+. bfd *abfd,
+. PTR in,
+. PTR ext));
+.
+. unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
+. bfd *abfd,
+. PTR src,
+. PTR dst));
+.
+. unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
+. bfd *abfd,
+. PTR in,
+. PTR out));
+.
+. unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
+. bfd *abfd,
+. PTR in,
+. PTR out));
+.
+. unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
+. bfd *abfd,
+. PTR in,
+. PTR out));
+.
+
+Special entry points for generic COFF routines to call target
+dependent COFF routines:
+
+. unsigned int _bfd_filhsz;
+. unsigned int _bfd_aoutsz;
+. unsigned int _bfd_scnhsz;
+. unsigned int _bfd_symesz;
+. unsigned int _bfd_auxesz;
+. unsigned int _bfd_linesz;
+. boolean _bfd_coff_long_filenames;
+. void (*_bfd_coff_swap_filehdr_in) PARAMS ((
+. bfd *abfd,
+. PTR ext,
+. PTR in));
+. void (*_bfd_coff_swap_aouthdr_in) PARAMS ((
+. bfd *abfd,
+. PTR ext,
+. PTR in));
+. void (*_bfd_coff_swap_scnhdr_in) PARAMS ((
+. bfd *abfd,
+. PTR ext,
+. PTR in));
+. boolean (*_bfd_coff_bad_format_hook) PARAMS ((
+. bfd *abfd,
+. PTR internal_filehdr));
+. boolean (*_bfd_coff_set_arch_mach_hook) PARAMS ((
+. bfd *abfd,
+. PTR internal_filehdr));
+. PTR (*_bfd_coff_mkobject_hook) PARAMS ((
+. bfd *abfd,
+. PTR internal_filehdr,
+. PTR internal_aouthdr));
+. flagword (*_bfd_styp_to_sec_flags_hook) PARAMS ((
+. bfd *abfd,
+. PTR internal_scnhdr));
+. asection *(*_bfd_make_section_hook) PARAMS ((
+. bfd *abfd,
+. char *name));
+. void (*_bfd_set_alignment_hook) PARAMS ((
+. bfd *abfd,
+. asection *sec,
+. PTR internal_scnhdr));
+. boolean (*_bfd_coff_slurp_symbol_table) PARAMS ((
+. bfd *abfd));
+. boolean (*_bfd_coff_symname_in_debug) PARAMS ((
+. bfd *abfd,
+. struct internal_syment *sym));
+. void (*_bfd_coff_reloc16_extra_cases) PARAMS ((
+. bfd *abfd,
+. struct bfd_link_info *link_info,
+. struct bfd_link_order *link_order,
+. arelent *reloc,
+. bfd_byte *data,
+. unsigned int *src_ptr,
+. unsigned int *dst_ptr));
+. int (*_bfd_coff_reloc16_estimate) PARAMS ((
+. bfd *abfd,
+. asection *input_section,
+. arelent *r,
+. unsigned int shrink,
+. struct bfd_link_info *link_info));
+.
+.} bfd_coff_backend_data;
+.
+.#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
+.
+.#define bfd_coff_swap_aux_in(a,e,t,c,ind,num,i) \
+. ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,ind,num,i))
+.
+.#define bfd_coff_swap_sym_in(a,e,i) \
+. ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
+.
+.#define bfd_coff_swap_lineno_in(a,e,i) \
+. ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
+.
+.#define bfd_coff_swap_reloc_out(abfd, i, o) \
+. ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
+.
+.#define bfd_coff_swap_lineno_out(abfd, i, o) \
+. ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
+.
+.#define bfd_coff_swap_aux_out(a,i,t,c,ind,num,o) \
+. ((coff_backend_info (a)->_bfd_coff_swap_aux_out) (a,i,t,c,ind,num,o))
+.
+.#define bfd_coff_swap_sym_out(abfd, i,o) \
+. ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
+.
+.#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
+. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
+.
+.#define bfd_coff_swap_filehdr_out(abfd, i,o) \
+. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
+.
+.#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
+. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
+.
+.#define bfd_coff_filhsz(abfd) (coff_backend_info (abfd)->_bfd_filhsz)
+.#define bfd_coff_aoutsz(abfd) (coff_backend_info (abfd)->_bfd_aoutsz)
+.#define bfd_coff_scnhsz(abfd) (coff_backend_info (abfd)->_bfd_scnhsz)
+.#define bfd_coff_symesz(abfd) (coff_backend_info (abfd)->_bfd_symesz)
+.#define bfd_coff_auxesz(abfd) (coff_backend_info (abfd)->_bfd_auxesz)
+.#define bfd_coff_linesz(abfd) (coff_backend_info (abfd)->_bfd_linesz)
+.#define bfd_coff_long_filenames(abfd) (coff_backend_info (abfd)->_bfd_coff_long_filenames)
+.#define bfd_coff_swap_filehdr_in(abfd, i,o) \
+. ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_in) (abfd, i, o))
+.
+.#define bfd_coff_swap_aouthdr_in(abfd, i,o) \
+. ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_in) (abfd, i, o))
+.
+.#define bfd_coff_swap_scnhdr_in(abfd, i,o) \
+. ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_in) (abfd, i, o))
+.
+.#define bfd_coff_bad_format_hook(abfd, filehdr) \
+. ((coff_backend_info (abfd)->_bfd_coff_bad_format_hook) (abfd, filehdr))
+.
+.#define bfd_coff_set_arch_mach_hook(abfd, filehdr)\
+. ((coff_backend_info (abfd)->_bfd_coff_set_arch_mach_hook) (abfd, filehdr))
+.#define bfd_coff_mkobject_hook(abfd, filehdr, aouthdr)\
+. ((coff_backend_info (abfd)->_bfd_coff_mkobject_hook) (abfd, filehdr, aouthdr))
+.
+.#define bfd_coff_styp_to_sec_flags_hook(abfd, scnhdr)\
+. ((coff_backend_info (abfd)->_bfd_styp_to_sec_flags_hook) (abfd, scnhdr))
+.
+.#define bfd_coff_make_section_hook(abfd, name)\
+. ((coff_backend_info (abfd)->_bfd_make_section_hook) (abfd, name))
+.
+.#define bfd_coff_set_alignment_hook(abfd, sec, scnhdr)\
+. ((coff_backend_info (abfd)->_bfd_set_alignment_hook) (abfd, sec, scnhdr))
+.
+.#define bfd_coff_slurp_symbol_table(abfd)\
+. ((coff_backend_info (abfd)->_bfd_coff_slurp_symbol_table) (abfd))
+.
+.#define bfd_coff_symname_in_debug(abfd, sym)\
+. ((coff_backend_info (abfd)->_bfd_coff_symname_in_debug) (abfd, sym))
+.
+.#define bfd_coff_reloc16_extra_cases(abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr)\
+. ((coff_backend_info (abfd)->_bfd_coff_reloc16_extra_cases)\
+. (abfd, link_info, link_order, reloc, data, src_ptr, dst_ptr))
+.
+.#define bfd_coff_reloc16_estimate(abfd, section, reloc, shrink, link_info)\
+. ((coff_backend_info (abfd)->_bfd_coff_reloc16_estimate)\
+. (abfd, section, reloc, shrink, link_info))
+.
+*/
+/* See whether the magic number matches. */
-GDB_EXPORT void
-DEFUN(bfd_swap_aouthdr_in,(abfd, aouthdr_ext, aouthdr_int),
- bfd *abfd AND
- AOUTHDR *aouthdr_ext AND
- struct internal_aouthdr *aouthdr_int)
+static boolean
+coff_bad_format_hook (abfd, filehdr)
+ bfd * abfd;
+ PTR filehdr;
{
- aouthdr_int->magic = bfd_h_get_16(abfd, aouthdr_ext->magic);
- aouthdr_int->vstamp = bfd_h_get_16(abfd, aouthdr_ext->vstamp);
- aouthdr_int->tsize = bfd_h_get_32(abfd, aouthdr_ext->tsize);
- aouthdr_int->dsize = bfd_h_get_32(abfd, aouthdr_ext->dsize);
- aouthdr_int->bsize = bfd_h_get_32(abfd, aouthdr_ext->bsize);
- aouthdr_int->entry = bfd_h_get_32(abfd, aouthdr_ext->entry);
- aouthdr_int->text_start = bfd_h_get_32(abfd, aouthdr_ext->text_start);
- aouthdr_int->data_start = bfd_h_get_32(abfd, aouthdr_ext->data_start);
-#ifdef I960
- aouthdr_int->tagentries = bfd_h_get_32(abfd, aouthdr_ext->tagentries);
-#endif
-}
+ struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
-GDB_EXPORT void
-DEFUN(bfd_swap_aouthdr_out,(abfd, aouthdr_in, aouthdr_out),
- bfd *abfd AND
- struct internal_aouthdr *aouthdr_in AND
- AOUTHDR *aouthdr_out)
-{
- bfd_h_put_16(abfd, aouthdr_in->magic, aouthdr_out->magic);
- bfd_h_put_16(abfd, aouthdr_in->vstamp, aouthdr_out->vstamp);
- bfd_h_put_32(abfd, aouthdr_in->tsize, aouthdr_out->tsize);
- bfd_h_put_32(abfd, aouthdr_in->dsize, aouthdr_out->dsize);
- bfd_h_put_32(abfd, aouthdr_in->bsize, aouthdr_out->bsize);
- bfd_h_put_32(abfd, aouthdr_in->entry, aouthdr_out->entry);
- bfd_h_put_32(abfd, aouthdr_in->text_start, aouthdr_out->text_start);
- bfd_h_put_32(abfd, aouthdr_in->data_start, aouthdr_out->data_start);
-#ifdef I960
- bfd_h_put_32(abfd, aouthdr_in->tagentries, aouthdr_out->tagentries);
-#endif
-}
+ if (BADMAG (*internal_f))
+ return false;
-GDB_EXPORT void
-DEFUN(coff_swap_scnhdr_in,(abfd, scnhdr_ext, scnhdr_int),
- bfd *abfd AND
- SCNHDR *scnhdr_ext AND
- struct internal_scnhdr *scnhdr_int)
-{
- memcpy(scnhdr_int->s_name, scnhdr_ext->s_name, sizeof(scnhdr_int->s_name));
- scnhdr_int->s_vaddr = bfd_h_get_32(abfd, scnhdr_ext->s_vaddr);
- scnhdr_int->s_paddr = bfd_h_get_32(abfd, scnhdr_ext->s_paddr);
- scnhdr_int->s_size = bfd_h_get_32(abfd, scnhdr_ext->s_size);
- scnhdr_int->s_scnptr = bfd_h_get_32(abfd, scnhdr_ext->s_scnptr);
- scnhdr_int->s_relptr = bfd_h_get_32(abfd, scnhdr_ext->s_relptr);
- scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, scnhdr_ext->s_lnnoptr);
- scnhdr_int->s_nreloc = bfd_h_get_16(abfd, scnhdr_ext->s_nreloc);
- scnhdr_int->s_nlnno = bfd_h_get_16(abfd, scnhdr_ext->s_nlnno);
- scnhdr_int->s_flags = bfd_h_get_32(abfd, scnhdr_ext->s_flags);
-#ifdef I960
- scnhdr_int->s_align = bfd_h_get_32(abfd, scnhdr_ext->s_align);
+ /* if the optional header is NULL or not the correct size then
+ quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
+ and Intel 960 readwrite headers (I960WRMAGIC) is that the
+ optional header is of a different size.
+
+ But the mips keeps extra stuff in it's opthdr, so dont check
+ when doing that
+ */
+
+#if defined(M88) || defined(I960)
+ if (internal_f->f_opthdr != 0 && AOUTSZ != internal_f->f_opthdr)
+ return false;
#endif
+
+ return true;
}
-static void
-DEFUN(swap_scnhdr_out,(abfd, scnhdr_int, scnhdr_ext),
- bfd *abfd AND
- struct internal_scnhdr *scnhdr_int AND
- SCNHDR *scnhdr_ext)
+static asection *
+coff_make_section_hook (abfd, name)
+ bfd * abfd;
+ char *name;
{
- memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name));
- PUTWORD(abfd, scnhdr_int->s_vaddr, scnhdr_ext->s_vaddr);
- PUTWORD(abfd, scnhdr_int->s_paddr, scnhdr_ext->s_paddr);
- PUTWORD(abfd, scnhdr_int->s_size, scnhdr_ext->s_size);
- PUTWORD(abfd, scnhdr_int->s_scnptr, scnhdr_ext->s_scnptr);
- PUTWORD(abfd, scnhdr_int->s_relptr, scnhdr_ext->s_relptr);
- PUTWORD(abfd, scnhdr_int->s_lnnoptr, scnhdr_ext->s_lnnoptr);
- PUTWORD(abfd, scnhdr_int->s_nreloc, scnhdr_ext->s_nreloc);
- PUTHALF(abfd, scnhdr_int->s_nlnno, scnhdr_ext->s_nlnno);
- PUTHALF(abfd, scnhdr_int->s_flags, scnhdr_ext->s_flags);
-#ifdef I960
- PUTWORD(abfd, scnhdr_int->s_align, scnhdr_ext->s_align);
+#ifdef TWO_DATA_SECS
+ /* FIXME: This predates the call to bfd_make_section_anyway
+ in make_a_section_from_file, and can probably go away. */
+ /* On SCO a file created by the Microsoft assembler can have two
+ .data sections. We use .data2 for the second one. */
+ if (strcmp (name, _DATA) == 0)
+ return bfd_make_section (abfd, ".data2");
#endif
+ return (asection *) NULL;
}
/*
particular implementation of coff
*/
-static boolean
-DEFUN(coff_new_section_hook,(abfd_ignore, section_ignore),
- bfd *abfd_ignore AND
- asection *section_ignore)
+static boolean
+coff_new_section_hook (abfd, section)
+ bfd * abfd;
+ asection * section;
{
-#ifdef MC88MAGIC
- /* FIXME, shouldn't this ifdef be on something that says we are
- actually COMPILING FOR an 88K coff file, rather than simply
- knowing its magic number? */
- /* Align to at least 16 bytes */
- section_ignore->alignment_power = 4;
-#endif
-#if M68
- section_ignore->alignment_power = 3;
-#endif
-#if I386
- section_ignore->alignment_power = 2;
-#endif
+ section->alignment_power = abfd->xvec->align_power_min;
+ /* Allocate aux records for section symbols, to store size and
+ related info.
+
+ @@ Shouldn't use constant multiplier here! */
+ coffsymbol (section->symbol)->native =
+ (combined_entry_type *) bfd_zalloc (abfd,
+ sizeof (combined_entry_type) * 10);
return true;
}
-/* Take a section header read from a coff file (in HOST byte order),
- and make a BFD "section" out of it. */
-static boolean
-DEFUN(make_a_section_from_file,(abfd, hdr),
- bfd *abfd AND
- struct internal_scnhdr *hdr)
-{
- asection *return_section;
- {
- /* Assorted wastage to null-terminate the name, thanks AT&T! */
- char *name = bfd_alloc(abfd, sizeof (hdr->s_name)+1);
- if (name == NULL) {
- bfd_error = no_memory;
- return false;
- }
- strncpy(name, (char *) &hdr->s_name[0], sizeof (hdr->s_name));
- name[sizeof (hdr->s_name)] = 0;
+#ifdef I960
- return_section = bfd_make_section(abfd, name);
- }
+/* Set the alignment of a BFD section. */
- /* s_paddr is presumed to be = to s_vaddr */
-#define assign(to, from) return_section->to = hdr->from
- assign(vma, s_vaddr);
- /* assign (vma, s_vaddr); */
- assign(size, s_size);
- assign(filepos, s_scnptr);
- assign(rel_filepos, s_relptr);
- assign(reloc_count, s_nreloc);
-#ifdef I960
- {
- /* FIXME, use a temp var rather than alignment_power */
- assign(alignment_power, s_align);
- {
- unsigned int i;
- for (i = 0; i < 32; i++) {
- if ((1 << i) >= (int) (return_section->alignment_power)) {
- return_section->alignment_power = i;
- break;
- }
- }
- }
- }
-#endif
- assign(line_filepos, s_lnnoptr);
- /*
- return_section->linesize = hdr->s_nlnno * sizeof (struct lineno);
- */
+static void
+coff_set_alignment_hook (abfd, section, scnhdr)
+ bfd * abfd;
+ asection * section;
+ PTR scnhdr;
+{
+ struct internal_scnhdr *hdr = (struct internal_scnhdr *) scnhdr;
+ unsigned int i;
-#undef assign
- return_section->lineno_count = hdr->s_nlnno;
- return_section->userdata = NULL;
- return_section->next = (asection *) NULL;
- return_section->flags = 0;
- if ((hdr->s_flags & STYP_TEXT) || (hdr->s_flags & STYP_DATA))
- return_section->flags = (SEC_LOAD | SEC_ALLOC);
- else if (hdr->s_flags & STYP_BSS)
- return_section->flags = SEC_ALLOC;
-
- if (hdr->s_nreloc != 0)
- return_section->flags |= SEC_RELOC;
- if (hdr->s_scnptr != 0)
- return_section->flags |= SEC_HAS_CONTENTS;
- return true;
+ for (i = 0; i < 32; i++)
+ if ((1 << i) >= hdr->s_align)
+ break;
+ section->alignment_power = i;
}
-static boolean
-DEFUN(coff_mkobject,(abfd),
- bfd *abfd)
+
+#else /* ! I960 */
+
+#define coff_set_alignment_hook \
+ ((void (*) PARAMS ((bfd *, asection *, PTR))) bfd_void)
+
+#endif /* ! I960 */
+
+static boolean
+coff_mkobject (abfd)
+ bfd * abfd;
{
- set_tdata (abfd, bfd_zalloc (abfd,sizeof(coff_data_type)));
- if (coff_data(abfd) == 0) {
- bfd_error = no_memory;
- return false;
- }
- coff_data(abfd)->relocbase = 0;
+ coff_data_type *coff;
+
+ abfd->tdata.coff_obj_data = (struct coff_tdata *) bfd_zalloc (abfd, sizeof (coff_data_type));
+ if (abfd->tdata.coff_obj_data == 0)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return false;
+ }
+ coff = coff_data (abfd);
+ coff->symbols = (coff_symbol_type *) NULL;
+ coff->conversion_table = (unsigned int *) NULL;
+ coff->raw_syments = (struct coff_ptr_struct *) NULL;
+ coff->raw_linenos = (struct lineno *) NULL;
+ coff->relocbase = 0;
+/* make_abs_section(abfd);*/
return true;
}
-static
-bfd_target *
-DEFUN(coff_real_object_p,(abfd, nscns, internal_f, internal_a),
- bfd *abfd AND
- unsigned nscns AND
- struct internal_filehdr *internal_f AND
- struct internal_aouthdr *internal_a)
+/* Create the COFF backend specific information. */
+
+static PTR
+coff_mkobject_hook (abfd, filehdr, aouthdr)
+ bfd * abfd;
+ PTR filehdr;
+ PTR aouthdr;
{
+ struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
coff_data_type *coff;
- size_t readsize; /* length of file_info */
- SCNHDR *external_sections;
-
- /* Build a play area */
- if (coff_mkobject(abfd) != true)
- return 0;
- coff = coff_data(abfd);
-
-
- external_sections = (SCNHDR *)bfd_alloc(abfd, readsize = (nscns * SCNHSZ));
- if (bfd_read((PTR)external_sections, 1, readsize, abfd) != readsize) {
- goto fail;
- }
-
-
-
- /* Now copy data as required; construct all asections etc */
- coff->symbol_index_slew = 0;
- coff->relocbase =0;
- coff->raw_syment_count = 0;
- coff->raw_linenos = 0;
- coff->raw_syments = 0;
- coff->sym_filepos =0;
+ if (coff_mkobject (abfd) == false)
+ return NULL;
+
+ coff = coff_data (abfd);
+
+ coff->sym_filepos = internal_f->f_symptr;
coff->flags = internal_f->f_flags;
- if (nscns != 0) {
- unsigned int i;
- for (i = 0; i < nscns; i++) {
- struct internal_scnhdr tmp;
- coff_swap_scnhdr_in(abfd, external_sections + i, &tmp);
- make_a_section_from_file(abfd,&tmp);
- }
- }
- /* Determine the machine architecture and type. */
- abfd->obj_machine = 0;
- switch (internal_f->f_magic) {
+
+ /* These members communicate important constants about the symbol
+ table to GDB's symbol-reading code. These `constants'
+ unfortunately vary among coff implementations... */
+ coff->local_n_btmask = N_BTMASK;
+ coff->local_n_btshft = N_BTSHFT;
+ coff->local_n_tmask = N_TMASK;
+ coff->local_n_tshift = N_TSHIFT;
+ coff->local_symesz = SYMESZ;
+ coff->local_auxesz = AUXESZ;
+ coff->local_linesz = LINESZ;
+
+ return (PTR) coff;
+}
+
+/* Determine the machine architecture and type. FIXME: This is target
+ dependent because the magic numbers are defined in the target
+ dependent header files. But there is no particular need for this.
+ If the magic numbers were moved to a separate file, this function
+ would be target independent and would also be much more successful
+ at linking together COFF files for different architectures. */
+
+static boolean
+coff_set_arch_mach_hook (abfd, filehdr)
+ bfd *abfd;
+ PTR filehdr;
+{
+ long machine;
+ enum bfd_architecture arch;
+ struct internal_filehdr *internal_f = (struct internal_filehdr *) filehdr;
+
+ machine = 0;
+ switch (internal_f->f_magic)
+ {
#ifdef I386MAGIC
- case I386MAGIC:
- abfd->obj_arch = bfd_arch_i386;
- abfd->obj_machine = 0;
- break;
+ case I386MAGIC:
+ case I386PTXMAGIC:
+ case I386AIXMAGIC: /* Danbury PS/2 AIX C Compiler */
+ case LYNXCOFFMAGIC: /* shadows the m68k Lynx number below, sigh */
+ arch = bfd_arch_i386;
+ machine = 0;
+ break;
#endif
-#ifdef MIPS
- case MIPS_MAGIC_1:
- case MIPS_MAGIC_2:
- case MIPS_MAGIC_3:
- abfd->obj_arch = bfd_arch_mips;
- abfd->obj_machine = 0;
- break;
+
+#ifdef A29K_MAGIC_BIG
+ case A29K_MAGIC_BIG:
+ case A29K_MAGIC_LITTLE:
+ arch = bfd_arch_a29k;
+ machine = 0;
+ break;
#endif
#ifdef MC68MAGIC
- case MC68MAGIC:
- case M68MAGIC:
- abfd->obj_arch = bfd_arch_m68k;
- abfd->obj_machine = 68020;
- break;
+ case MC68MAGIC:
+ case M68MAGIC:
+#ifdef MC68KBCSMAGIC
+ case MC68KBCSMAGIC:
+#endif
+#ifdef APOLLOM68KMAGIC
+ case APOLLOM68KMAGIC:
+#endif
+#ifdef LYNXCOFFMAGIC
+ case LYNXCOFFMAGIC:
+#endif
+ arch = bfd_arch_m68k;
+ machine = 68020;
+ break;
#endif
#ifdef MC88MAGIC
- case MC88MAGIC:
- case MC88DMAGIC:
- case MC88OMAGIC:
- abfd->obj_arch = bfd_arch_m88k;
- abfd->obj_machine = 88100;
- break;
+ case MC88MAGIC:
+ case MC88DMAGIC:
+ case MC88OMAGIC:
+ arch = bfd_arch_m88k;
+ machine = 88100;
+ break;
+#endif
+#ifdef Z8KMAGIC
+ case Z8KMAGIC:
+ arch = bfd_arch_z8k;
+ switch (internal_f->f_flags & F_MACHMASK)
+ {
+ case F_Z8001:
+ machine = bfd_mach_z8001;
+ break;
+ case F_Z8002:
+ machine = bfd_mach_z8002;
+ break;
+ default:
+ return false;
+ }
+ break;
#endif
#ifdef I960
#ifdef I960ROMAGIC
- case I960ROMAGIC:
- case I960RWMAGIC:
- abfd->obj_arch = bfd_arch_i960;
- switch (F_I960TYPE & internal_f->f_flags)
+ case I960ROMAGIC:
+ case I960RWMAGIC:
+ arch = bfd_arch_i960;
+ switch (F_I960TYPE & internal_f->f_flags)
{
default:
case F_I960CORE:
- abfd->obj_machine = bfd_mach_i960_core;
+ machine = bfd_mach_i960_core;
break;
case F_I960KB:
- abfd->obj_machine = bfd_mach_i960_kb_sb;
+ machine = bfd_mach_i960_kb_sb;
break;
case F_I960MC:
- abfd->obj_machine = bfd_mach_i960_mc;
+ machine = bfd_mach_i960_mc;
break;
case F_I960XA:
- abfd->obj_machine = bfd_mach_i960_xa;
+ machine = bfd_mach_i960_xa;
break;
case F_I960CA:
- abfd->obj_machine = bfd_mach_i960_ca;
+ machine = bfd_mach_i960_ca;
break;
case F_I960KA:
- abfd->obj_machine = bfd_mach_i960_ka_sa;
+ machine = bfd_mach_i960_ka_sa;
break;
-
}
- break;
+ break;
#endif
#endif
-
- default: /* Unreadable input file type */
- abfd->obj_arch = bfd_arch_obscure;
- break;
- }
-
- if (!(internal_f->f_flags & F_RELFLG))
- abfd->flags |= HAS_RELOC;
- if ((internal_f->f_flags & F_EXEC))
- abfd->flags |= EXEC_P;
- if (!(internal_f->f_flags & F_LNNO))
- abfd->flags |= HAS_LINENO;
- if (!(internal_f->f_flags & F_LSYMS))
- abfd->flags |= HAS_LOCALS;
-
-
- bfd_get_symcount(abfd) = internal_f->f_nsyms;
- if (internal_f->f_nsyms)
- abfd->flags |= HAS_SYMS;
-
- coff->sym_filepos = internal_f->f_symptr;
-
-
-
- coff->symbols = (coff_symbol_type *) NULL;
- bfd_get_start_address(abfd) = internal_f->f_opthdr ? internal_a->entry : 0;
-
- return abfd->xvec;
- fail:
- bfd_release(abfd, coff);
- return (bfd_target *)NULL;
-}
-static bfd_target *
-DEFUN(coff_object_p,(abfd),
- bfd *abfd)
- {
- int nscns;
- FILHDR filehdr;
- AOUTHDR opthdr;
- struct internal_filehdr internal_f;
- struct internal_aouthdr internal_a;
-
- bfd_error = system_call_error;
-
- /* figure out how much to read */
- if (bfd_read((PTR) &filehdr, 1, FILHSZ, abfd) != FILHSZ)
- return 0;
-
- bfd_swap_filehdr_in(abfd, &filehdr, &internal_f);
-
- if (BADMAG(internal_f)) {
- bfd_error = wrong_format;
- return 0;
- }
- nscns =internal_f.f_nscns;
-
- if (internal_f.f_opthdr) {
- if (bfd_read((PTR) &opthdr, 1,AOUTSZ, abfd) != AOUTSZ) {
- return 0;
- }
- bfd_swap_aouthdr_in(abfd, &opthdr, &internal_a);
- }
-
- /* Seek past the opt hdr stuff */
- bfd_seek(abfd, internal_f.f_opthdr + FILHSZ, SEEK_SET);
-
- /* if the optional header is NULL or not the correct size then
- quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
- and Intel 960 readwrite headers (I960WRMAGIC) is that the
- optional header is of a different size.
-
- But the mips keeps extra stuff in it's opthdr, so dont check
- when doing that
- */
-
-#ifndef MIPS
- if (internal_f.f_opthdr != 0 && AOUTSZ != internal_f.f_opthdr)
- return (bfd_target *)NULL;
-#endif
-
- return coff_real_object_p(abfd, nscns, &internal_f, &internal_a);
- }
+#ifdef U802ROMAGIC
+ case U802ROMAGIC:
+ case U802WRMAGIC:
+ case U802TOCMAGIC:
+ arch = bfd_arch_rs6000;
+ machine = 6000;
+ break;
+#endif
+#ifdef WE32KMAGIC
+ case WE32KMAGIC:
+ arch = bfd_arch_we32k;
+ machine = 0;
+ break;
+#endif
+#ifdef H8300MAGIC
+ case H8300MAGIC:
+ arch = bfd_arch_h8300;
+ machine = bfd_mach_h8300;
+ /* !! FIXME this probably isn't the right place for this */
+ abfd->flags |= BFD_IS_RELAXABLE;
+ break;
+#endif
+#ifdef H8300HMAGIC
+ case H8300HMAGIC:
+ arch = bfd_arch_h8300;
+ machine = bfd_mach_h8300h;
+ /* !! FIXME this probably isn't the right place for this */
+ abfd->flags |= BFD_IS_RELAXABLE;
+ break;
+#endif
-/*
-Takes a bfd and a symbol, returns a pointer to the coff specific area
-of the symbol if there is one.
-*/
-static coff_symbol_type *
-DEFUN(coff_symbol_from,(abfd, symbol),
- bfd *abfd AND
- asymbol *symbol)
- {
- if (symbol->the_bfd->xvec->flavour != bfd_target_coff_flavour_enum)
- return (coff_symbol_type *)NULL;
-
- if (symbol->the_bfd->tdata == (PTR)NULL)
- return (coff_symbol_type *)NULL;
-
- return (coff_symbol_type *) symbol;
- }
+#ifdef SHMAGIC
+ case SHMAGIC:
+ arch = bfd_arch_sh;
+ machine = 0;
+ break;
+#endif
+#ifdef H8500MAGIC
+ case H8500MAGIC:
+ arch = bfd_arch_h8500;
+ machine = 0;
+ break;
+#endif
+#ifdef SPARCMAGIC
+ case SPARCMAGIC:
+ arch = bfd_arch_sparc;
+ machine = 0;
+ break;
+#endif
+ default: /* Unreadable input file type */
+ arch = bfd_arch_obscure;
+ break;
+ }
+ bfd_default_set_arch_mach (abfd, arch, machine);
+ return true;
+}
+#ifdef SYMNAME_IN_DEBUG
+static boolean
+symname_in_debug_hook (abfd, sym)
+ bfd * abfd;
+ struct internal_syment *sym;
+{
+ return SYMNAME_IN_DEBUG (sym) ? true : false;
+}
-static void
-DEFUN(coff_count_linenumbers,(abfd),
- bfd *abfd)
- {
- unsigned int limit = bfd_get_symcount(abfd);
- unsigned int i;
- asymbol **p;
- {
- asection *s = abfd->sections->output_section;
- while (s) {
- BFD_ASSERT(s->lineno_count == 0);
- s = s->next;
- }
- }
-
-
- for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) {
- asymbol *q_maybe = *p;
- if (q_maybe->the_bfd->xvec->flavour == bfd_target_coff_flavour_enum) {
- coff_symbol_type *q = coffsymbol(q_maybe);
- if (q->lineno) {
- /*
- This symbol has a linenumber, increment the owning
- section's linenumber count
- */
- alent *l = q->lineno;
- q->symbol.section->output_section->lineno_count++;
- l++;
- while (l->line_number) {
- q->symbol.section->output_section->lineno_count++;
- l++;
- }
- }
- }
- }
- }
+#else
-/*
-This function returns true if the supplied SYMENT has an AUXENT with
-a tagndx field which should be relocated.
+#define symname_in_debug_hook \
+ (boolean (*) PARAMS ((bfd *, struct internal_syment *))) bfd_false
-The coff book says that all auxents have this and should be moved,
-but all the actual implementations I've looked at do this ..
-(sac@cygnus.com)
+#endif
-*/
-static boolean
-DEFUN(uses_x_sym_x_tagndx_p,(abfd, native),
- bfd *abfd AND
- struct internal_syment *native)
- {
- if (BTYPE(native->n_type) == T_STRUCT) return true;
- if (BTYPE(native->n_type) == T_UNION) return true;
- if (BTYPE(native->n_type) == T_ENUM) return true;
- return false;
- }
-
-
-/*
-This procedure runs through the native entries in a coff symbol table
-and links up all the elements which should point to one another, in
-particular these are:
-
-strtag, entag and untags have an auxent endindex which points to the
-first syment after the .eos. This is simple to do, we just keep a
-pointer to the symbol with the most recent pending strtag and patch it
-when we see the eos. This works since coff structs are never nested.
-
-ISFCN type entries have an endindex which points to the next static or
-extern in the table, thereby skipping the function contents.
-The coff book says that an ISFCN's tagindex
-points to the first .bf for the function, so far I havn't seen it
-used. We do this using the same mechanism as strtags.
-
-Each file entry has a value which points to the next file entry,
-the last file entry points to the first extern symbol in the table
-which is not an ISFCN.
-
-Each .bb entry points to the matching .eb entry, but these are nested
-so we keep a stack of them.
-
-The tagndx of .eos items points to the strtag attached to them, this
-is simply the last_tagndx again.
+/*
+SUBSUBSECTION
+ Writing relocations
+
+ To write relocations, the back end steps though the
+ canonical relocation table and create an
+ @code{internal_reloc}. The symbol index to use is removed from
+ the @code{offset} field in the symbol table supplied. The
+ address comes directly from the sum of the section base
+ address and the relocation offset; the type is dug directly
+ from the howto field. Then the @code{internal_reloc} is
+ swapped into the shape of an @code{external_reloc} and written
+ out to disk.
-The tagndx of items with type strtag point to the defining struct.
-This bit is complicated; We know that a struct ref and def must be
-within the same file, so all the natives will be in the same vector.
-This means that we can subtracts two pointers and get the index
-differences between to items, used to work out the true index of the
-target.
+*/
-We store in the name field of each syment the actual native index
-applied so we can dig it out through a pointer. */
+static boolean
+coff_write_relocs (abfd)
+ bfd * abfd;
+{
+ asection *s;
+ for (s = abfd->sections; s != (asection *) NULL; s = s->next)
+ {
+ unsigned int i;
+ struct external_reloc dst;
-static void
-DEFUN(coff_mangle_symbols,(bfd_ptr),
- bfd *bfd_ptr)
- {
- unsigned int symbol_count = bfd_get_symcount(bfd_ptr);
- asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols;
- struct internal_syment *last_tagndx = (struct internal_syment *)NULL;
- struct internal_syment *last_file = (struct internal_syment *)NULL;
- struct internal_syment *last_fcn = (struct internal_syment *)NULL;
- struct internal_syment *block_stack[50];
- struct internal_syment **last_block = &block_stack[0];
- boolean first_time = true;
- unsigned int symbol_index;
- unsigned int native_index = 0;
-
- for (symbol_index = 0; symbol_index < symbol_count; symbol_index++) {
- coff_symbol_type *coff_symbol_ptr =
- coff_symbol_from(bfd_ptr, symbol_ptr_ptr[symbol_index]);
- if (coff_symbol_ptr == (coff_symbol_type *)NULL) {
- /*
- This symbol has no coff information in it, it will take up
- only one slot in the output symbol table
- */
- native_index++;
- }
- else {
- struct internal_syment *syment = coff_symbol_ptr->native;
- if (syment == (struct internal_syment *)NULL) {
- native_index++;
- }
- else {
- /* Normalize the symbol flags */
- if (coff_symbol_ptr->symbol.flags & BSF_FORT_COMM) {
- /* a common symbol is undefined with a value */
- syment->n_scnum = N_UNDEF;
- syment->n_value = coff_symbol_ptr->symbol.value;
- }
- else if (coff_symbol_ptr->symbol.flags & BSF_DEBUGGING) {
- syment->n_value = coff_symbol_ptr->symbol.value;
- }
- else if (coff_symbol_ptr->symbol.flags & BSF_UNDEFINED) {
- syment->n_scnum = N_UNDEF;
- syment->n_value = 0;
- }
- else if (coff_symbol_ptr->symbol.flags & BSF_ABSOLUTE) {
- syment->n_scnum = N_ABS;
- syment->n_value = coff_symbol_ptr->symbol.value;
- }
- else {
- syment->n_scnum =
- coff_symbol_ptr->symbol.section->output_section->index+1;
-
- syment->n_value =
- coff_symbol_ptr->symbol.value +
- coff_symbol_ptr->symbol.section->output_offset +
- coff_symbol_ptr->symbol.section->output_section->vma;
- }
-
-
- /* If this symbol ties up something then do it */
-
- if (syment->n_sclass == C_FILE && last_file != (struct internal_syment *)NULL)
- {
- last_file->n_value = native_index;
- }
- else if ((syment->n_sclass == C_EXT
- || syment->n_sclass == C_STAT
-#ifdef C_LEAFEXT
- || syment->n_sclass == C_LEAFEXT
- || syment->n_sclass == C_LEAFSTAT
-#endif
- )
- && last_fcn != (struct internal_syment *)NULL)
- {
- union internal_auxent *auxent = (union internal_auxent *)(last_fcn+1);
- auxent->x_sym.x_fcnary.x_fcn.x_endndx = native_index;
- last_fcn = (struct internal_syment *)NULL;
-
- }
- else if (syment->n_sclass == C_EOS && last_tagndx != (struct internal_syment*)NULL)
- {
- union internal_auxent *auxent = (union internal_auxent *)(last_tagndx+1);
- /* Remember that we keep the native index in the offset
- so patch the beginning of the struct to point to this
- */
- auxent->x_sym.x_tagndx = last_tagndx->_n._n_n._n_offset;
- auxent->x_sym.x_fcnary.x_fcn.x_endndx = syment->n_numaux + 1 + native_index;
- /* Now point the eos to the structure */
- auxent = (union internal_auxent *)(syment+1);
- auxent->x_sym.x_tagndx = last_tagndx->_n._n_n._n_offset;
- }
- else if (syment->n_sclass == C_BLOCK
- && coff_symbol_ptr->symbol.name[1] == 'e')
- {
- union internal_auxent *auxent = (union internal_auxent *)((*(--last_block))+1);
- auxent->x_sym.x_fcnary.x_fcn.x_endndx = native_index + syment->n_numaux + 1;
- }
- if (syment->n_sclass == C_EXT
- && !ISFCN(syment->n_type)
- && first_time == true
- && last_file != (struct internal_syment *)NULL) {
- /* This is the first external symbol seen which isn't a
- function place it in the last .file entry */
- last_file->n_value = native_index;
- first_time = false;
- }
-#ifdef C_LEAFPROC
- if (syment->n_sclass == C_LEAFPROC &&
- syment->n_numaux == 2) {
- union internal_auxent *auxent = (union internal_auxent *)(syment+2);
- /* This is the definition of a leaf proc, we'll relocate the
- address */
- auxent->x_bal.x_balntry =
- coff_symbol_ptr->symbol.section->output_offset +
- coff_symbol_ptr->symbol.section->output_section->vma +
- auxent->x_bal.x_balntry ;
- }
+ arelent **p = s->orelocation;
+ if (bfd_seek (abfd, s->rel_filepos, SEEK_SET) != 0)
+ return false;
+ for (i = 0; i < s->reloc_count; i++)
+ {
+ struct internal_reloc n;
+ arelent *q = p[i];
+ memset ((PTR) & n, 0, sizeof (n));
+
+ n.r_vaddr = q->address + s->vma;
+
+#ifdef R_IHCONST
+ /* The 29k const/consth reloc pair is a real kludge. The consth
+ part doesn't have a symbol; it has an offset. So rebuilt
+ that here. */
+ if (q->howto->type == R_IHCONST)
+ n.r_symndx = q->addend;
+ else
#endif
- /* If this symbol needs to be tied up then remember some facts */
- if (syment->n_sclass == C_FILE)
+ if (q->sym_ptr_ptr)
{
- last_file = syment;
- }
- if (syment->n_numaux != 0) {
- /*
- If this symbol would like to point to something in the
- future then remember where it is
- */
- if (uses_x_sym_x_tagndx_p(bfd_ptr, syment)) {
- /*
- If this is a ref to a structure then we'll tie it up
- now - there are never any forward refs for one
- */
- if (syment->n_sclass == C_STRTAG ||
- syment->n_sclass == C_ENTAG ||
- syment->n_sclass == C_UNTAG) {
- last_tagndx = syment;
- }
- else {
- /*
- This is a ref to a structure - the structure must
- have been defined within the same file, and previous
- to this point, so we can deduce the new tagndx
- directly.
- */
- union internal_auxent *auxent = (union internal_auxent *)(syment+1);
- bfd *bfd_ptr = coff_symbol_ptr->symbol.the_bfd;
- struct internal_syment *base = obj_raw_syments(bfd_ptr);
- auxent->x_sym.x_tagndx = base[auxent->x_sym.x_tagndx]._n._n_n._n_offset;
-
-
+ if (q->sym_ptr_ptr == bfd_abs_section.symbol_ptr_ptr)
+ /* This is a relocation relative to the absolute symbol. */
+ n.r_symndx = -1;
+ else
+ {
+ n.r_symndx = get_index ((*(q->sym_ptr_ptr)));
+ /* Take notice if the symbol reloc points to a symbol
+ we don't have in our symbol table. What should we
+ do for this?? */
+ if (n.r_symndx > obj_conv_table_size (abfd))
+ abort ();
+ }
}
- }
- if (ISFCN(syment->n_type)) {
- last_fcn = syment;
- }
- if (syment->n_sclass == C_BLOCK
- && coff_symbol_ptr->symbol.name[1] == 'b')
- {
- *last_block++ = syment;
- }
- }
- syment->_n._n_n._n_offset = native_index;
- native_index = native_index + 1 + syment->n_numaux;
- }
- }
- }
-}
-
-static void
-DEFUN(coff_write_symbols,(abfd),
-bfd *abfd)
-{
- unsigned int i;
- unsigned int limit = bfd_get_symcount(abfd);
- unsigned int written = 0;
- struct internal_syment dummy;
- asymbol **p;
- unsigned int string_size = 0;
-
-
- /* Seek to the right place */
- bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET);
-
- /* Output all the symbols we have */
-
- written = 0;
- for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) {
- asymbol *symbol = *p;
- coff_symbol_type *c_symbol = coff_symbol_from(abfd, symbol);
-
- unsigned int j;
- struct internal_syment *native;
- if (c_symbol == (coff_symbol_type *) NULL ||
- c_symbol->native == (struct internal_syment *) NULL) {
- /*
- This symbol has been created by the loader, or come from a non
- coff format. It has no native element to inherit, make our
- own
- */
-
- native = &dummy;
- native->n_type = T_NULL;
-#ifdef I960
- native->n_flags = 0;
-#endif
- if (symbol->flags & BSF_ABSOLUTE) {
- native->n_scnum = N_ABS;
- native->n_value = symbol->value;
- }
- else if (symbol->flags & (BSF_UNDEFINED | BSF_FORT_COMM)) {
- native->n_scnum = N_UNDEF;
- native->n_value = symbol->value;
- }
- else if (symbol->flags & BSF_DEBUGGING) {
- /*
- remove name so it doesn't take up any space
- */
- symbol->name = "";
- continue;
- }
- else {
- native->n_scnum = symbol->section->output_section->index +
- 1;
- native->n_value = symbol->value +
- symbol->section->output_section->vma +
- symbol->section->output_offset;
-#ifdef I960
- /* Copy the any flags from the the file hdr into the symbol */
- {
- coff_symbol_type *c = coff_symbol_from(abfd, symbol);
- if (c != (coff_symbol_type *)NULL) {
- native->n_flags = c->symbol.the_bfd->flags;
- }
- }
+#ifdef SWAP_OUT_RELOC_OFFSET
+ n.r_offset = q->addend;
#endif
- }
-
-#ifdef HASPAD1
- native->pad1[0] = 0;
- native->pad1[0] = 0;
-#endif
-
- native->n_type = 0;
- if (symbol->flags & BSF_LOCAL)
- native->n_sclass = C_STAT;
- else
- native->n_sclass = C_EXT;
- native->n_numaux = 0;
- }
- else
- /*
- Does this symbol have an ascociated line number - if so then
- make it remember this symbol index. Also tag the auxent of
- this symbol to point to the right place in the lineno table
- */
- {
- alent *lineno = c_symbol->lineno;
- native = c_symbol->native;
- if (lineno) {
- unsigned int count = 0;
- lineno[count].u.offset = written;
- if (native->n_numaux) {
- union internal_auxent *a = (union internal_auxent *) (native + 1);
-
- a->x_sym.x_fcnary.x_fcn.x_lnnoptr =
- c_symbol->symbol.section->output_section->moving_line_filepos;
- }
- /*
- And count and relocate all other linenumbers
- */
- count++;
- while (lineno[count].line_number) {
- lineno[count].u.offset +=
- c_symbol->symbol.section->output_section->vma +
- c_symbol->symbol.section->output_offset;
- count++;
- }
- c_symbol->symbol.section->output_section->moving_line_filepos +=
- count * LINESZ;
-
- }
- } /* if symbol new to coff */
-
- /* Fix the symbol names */
- {
- unsigned int name_length;
- if (symbol->name == (char *) NULL) {
- /*
- coff symbols always have names, so we'll make one up
- */
- symbol->name = "strange";
- }
- name_length = strlen(symbol->name);
- if (name_length <= SYMNMLEN) {
- /* This name will fit into the symbol neatly */
- strncpy(native->_n._n_name, symbol->name, SYMNMLEN);
- }
- else {
- native->_n._n_n._n_offset = string_size + 4;
- native->_n._n_n._n_zeroes = 0;
- string_size += name_length + 1;
- }
- {
- unsigned int numaux = native->n_numaux;
- int type = native->n_type;
- int class = native->n_sclass;
- SYMENT buf;
- coff_swap_sym_out(abfd, native, &buf);
- bfd_write((PTR)& buf, 1, SYMESZ, abfd);
- for (j = 0; j != native->n_numaux;
- j++) {
- AUXENT buf1;
- coff_swap_aux_out(abfd,
- (union internal_auxent *)(native + j + 1), type, class, &buf1);
- bfd_write((PTR) (native + j + 1), 1, AUXESZ, abfd);
- }
- /*
- Reuse somewhere in the symbol to keep the index
- */
- set_index(symbol, written);
- written += 1 + numaux;
- }
- }
- } /* for each out symbol */
-
- bfd_get_symcount(abfd) = written;
- /* Now write out strings */
-
- if (string_size) {
- unsigned int size = string_size + 4;
- size = size;
- bfd_write((PTR) &size, 1, sizeof(size), abfd);
- for (p = abfd->outsymbols, i = 0; i < limit; i++, p++) {
- asymbol *q = *p;
- size_t name_length = strlen(q->name);
- if (name_length > SYMNMLEN) {
- bfd_write((PTR) (q->name), 1, name_length + 1, abfd);
- }
- }
- }
- else {
- /* We would normally not write anything here, but we'll write
- out 4 so that any stupid coff reader which tries to read
- the string table even when there isn't one won't croak.
- */
-
- uint32e_type size = 4;
- size = size;
- bfd_write((PTR)&size, 1, sizeof(size), abfd);
-
- }
-
-}
-static void
-coff_write_relocs(abfd)
-bfd *abfd;
- {
- asection *s;
- for (s = abfd->sections; s != (asection *) NULL; s = s->next) {
- unsigned int i;
- struct external_reloc dst;
-
- arelent **p = s->orelocation;
- bfd_seek(abfd, s->rel_filepos, SEEK_SET);
- for (i = 0; i < s->reloc_count; i++) {
- struct internal_reloc n;
- arelent *q = p[i];
- memset((PTR)&n, 0, sizeof(n));
- n.r_vaddr = q->address + s->vma;
- if (q->sym_ptr_ptr) {
- n.r_symndx = get_index((*(q->sym_ptr_ptr)));
- }
#ifdef SELECT_RELOC
- /* Work out reloc type from what is required */
- SELECT_RELOC(n.r_type, q->howto);
+ /* Work out reloc type from what is required */
+ SELECT_RELOC (n, q->howto);
#else
- n.r_type = q->howto->type;
+ n.r_type = q->howto->type;
#endif
- bfd_swap_reloc_out(abfd, &n, &dst);
- bfd_write((PTR) &n, 1, RELSZ, abfd);
- }
- }
- }
-
-static void
-DEFUN(coff_write_linenumbers,(abfd),
- bfd *abfd)
- {
- asection *s;
- for (s = abfd->sections; s != (asection *) NULL; s = s->next) {
- if (s->lineno_count) {
- asymbol **q = abfd->outsymbols;
- bfd_seek(abfd, s->line_filepos, SEEK_SET);
- /* Find all the linenumbers in this section */
- while (*q) {
- asymbol *p = *q;
- alent *l = BFD_SEND(p->the_bfd, _get_lineno, (p->the_bfd, p));
- if (l) {
- /* Found a linenumber entry, output */
- struct internal_lineno out;
- LINENO buff;
- bzero( (PTR)&out, sizeof(out));
- out.l_lnno = 0;
- out.l_addr.l_symndx = l->u.offset;
- coff_swap_lineno_out(abfd, &out, &buff);
- bfd_write((PTR) &buff, 1, LINESZ, abfd);
- l++;
- while (l->line_number) {
- out.l_lnno = l->line_number;
- out.l_addr.l_symndx = l->u.offset;
- coff_swap_lineno_out(abfd, &out, &buff);
- bfd_write((PTR) &buff, 1, LINESZ, abfd);
- l++;
- }
- }
- q++;
+ coff_swap_reloc_out (abfd, &n, &dst);
+ if (bfd_write ((PTR) & dst, 1, RELSZ, abfd) != RELSZ)
+ return false;
}
- }
}
- }
+ return true;
+}
-static asymbol *
-coff_make_empty_symbol(abfd)
-bfd *abfd;
- {
- coff_symbol_type *new = (coff_symbol_type *) bfd_alloc(abfd, sizeof(coff_symbol_type));
- if (new == NULL) {
- bfd_error = no_memory;
- return (NULL);
- } /* on error */
- new->native = 0;
- new->lineno = (alent *) NULL;
- new->symbol.the_bfd = abfd;
- return &new->symbol;
- }
+/* Set flags and magic number of a coff file from architecture and machine
+ type. Result is true if we can represent the arch&type, false if not. */
-static void
-coff_print_symbol(ignore_abfd, file, symbol, how)
-bfd *ignore_abfd;
-FILE *file;
-asymbol *symbol;
-bfd_print_symbol_enum_type how;
- {
- switch (how) {
- case bfd_print_symbol_name_enum:
- fprintf(file, "%s", symbol->name);
- break;
- case bfd_print_symbol_type_enum:
- fprintf(file, "coff %lx %lx", (unsigned long) coffsymbol(symbol)->native,
- (unsigned long) coffsymbol(symbol)->lineno);
- break;
- case bfd_print_symbol_all_enum:
+static boolean
+coff_set_flags (abfd, magicp, flagsp)
+ bfd * abfd;
+ unsigned *magicp;
+ unsigned short *flagsp;
+{
+ switch (bfd_get_arch (abfd))
+ {
+#ifdef Z8KMAGIC
+ case bfd_arch_z8k:
+ *magicp = Z8KMAGIC;
+ switch (bfd_get_mach (abfd))
{
- CONST char *section_name = symbol->section == (asection *) NULL ?
- "*abs" : symbol->section->name;
- bfd_print_symbol_vandf((PTR) file, symbol);
-
- fprintf(file, " %-5s %s %s %s",
- section_name,
- coffsymbol(symbol)->native ? "n" : "g",
- coffsymbol(symbol)->lineno ? "l" : " ",
- symbol->name);
+ case bfd_mach_z8001:
+ *flagsp = F_Z8001;
+ break;
+ case bfd_mach_z8002:
+ *flagsp = F_Z8002;
+ break;
+ default:
+ return false;
}
-
-
- break;
- }
- }
-
-static alent *
-coff_get_lineno(ignore_abfd, symbol)
-bfd *ignore_abfd;
-asymbol *symbol;
- {
- return coffsymbol(symbol)->lineno;
- }
-
-/*
-Set flags and magic number of a coff file from architecture and machine
-type. Result is true if we can represent the arch&type, false if not.
-*/
-static boolean
-coff_set_flags(abfd, magicp, flagsp)
-bfd *abfd;
-unsigned *magicp,
-*flagsp;
- {
-
- switch (abfd->obj_arch) {
-
+ return true;
+#endif
#ifdef I960ROMAGIC
-
+
case bfd_arch_i960:
-
- {
- unsigned flags;
- *magicp = I960ROMAGIC;
- /*
- ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
- I960RWMAGIC); FIXME???
- */
- switch (abfd->obj_machine) {
+
+ {
+ unsigned flags;
+ *magicp = I960ROMAGIC;
+ /*
+ ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
+ I960RWMAGIC); FIXME???
+ */
+ switch (bfd_get_mach (abfd))
+ {
case bfd_mach_i960_core:
flags = F_I960CORE;
break;
default:
return false;
}
- *flagsp = flags;
- return true;
- }
- break;
-#endif
-#ifdef MIPS
- case bfd_arch_mips:
- *magicp = MIPS_MAGIC_2;
+ *flagsp = flags;
return true;
- break;
+ }
+ break;
#endif
#ifdef I386MAGIC
- case bfd_arch_i386:
- *magicp = I386MAGIC;
- return true;
+ case bfd_arch_i386:
+ *magicp = I386MAGIC;
+#ifdef LYNXOS
+ /* Just overwrite the usual value if we're doing Lynx. */
+ *magicp = LYNXCOFFMAGIC;
+#endif
+ return true;
+ break;
#endif
#ifdef MC68MAGIC
- case bfd_arch_m68k:
- *magicp = MC68MAGIC;
- return true;
+ case bfd_arch_m68k:
+#ifdef APOLLOM68KMAGIC
+ *magicp = APOLLO_COFF_VERSION_NUMBER;
+#else
+ *magicp = MC68MAGIC;
+#endif
+#ifdef LYNXOS
+ /* Just overwrite the usual value if we're doing Lynx. */
+ *magicp = LYNXCOFFMAGIC;
+#endif
+ return true;
+ break;
#endif
-
+
#ifdef MC88MAGIC
- case bfd_arch_m88k:
- *magicp = MC88OMAGIC;
- return true;
- break;
+ case bfd_arch_m88k:
+ *magicp = MC88OMAGIC;
+ return true;
+ break;
+#endif
+#ifdef H8300MAGIC
+ case bfd_arch_h8300:
+ switch (bfd_get_mach (abfd))
+ {
+ case bfd_mach_h8300:
+ *magicp = H8300MAGIC;
+ return true;
+ case bfd_mach_h8300h:
+ *magicp = H8300HMAGIC;
+ return true;
+ }
+ break;
#endif
-
- default: /* Unknown architecture */
- return false;
- }
-
- return false;
- }
+#ifdef SHMAGIC
+ case bfd_arch_sh:
+ *magicp = SHMAGIC;
+ return true;
+ break;
+#endif
-static boolean
-coff_set_arch_mach(abfd, arch, machine)
-bfd *abfd;
-enum bfd_architecture arch;
-unsigned long machine;
- {
- unsigned dummy1,
- dummy2;
- abfd->obj_arch = arch;
- abfd->obj_machine = machine;
- if (arch != bfd_arch_unknown &&
- coff_set_flags(abfd, &dummy1, &dummy2) != true)
- return false; /* We can't represent this type */
- return true; /* We're easy ... */
- }
+#ifdef SPARCMAGIC
+ case bfd_arch_sparc:
+ *magicp = SPARCMAGIC;
+#ifdef LYNXOS
+ /* Just overwrite the usual value if we're doing Lynx. */
+ *magicp = LYNXCOFFMAGIC;
+#endif
+ return true;
+ break;
+#endif
+
+#ifdef H8500MAGIC
+ case bfd_arch_h8500:
+ *magicp = H8500MAGIC;
+ return true;
+ break;
+#endif
+#ifdef A29K_MAGIC_BIG
+ case bfd_arch_a29k:
+ if (abfd->xvec->byteorder_big_p)
+ *magicp = A29K_MAGIC_BIG;
+ else
+ *magicp = A29K_MAGIC_LITTLE;
+ return true;
+ break;
+#endif
+
+#ifdef WE32KMAGIC
+ case bfd_arch_we32k:
+ *magicp = WE32KMAGIC;
+ return true;
+ break;
+#endif
+
+#ifdef U802TOCMAGIC
+ case bfd_arch_rs6000:
+ case bfd_arch_powerpc:
+ *magicp = U802TOCMAGIC;
+ return true;
+ break;
+#endif
+
+ default: /* Unknown architecture */
+ /* return false; -- fall through to "return false" below, to avoid
+ "statement never reached" errors on the one below. */
+ break;
+ }
+
+ return false;
+}
+
+
+static boolean
+coff_set_arch_mach (abfd, arch, machine)
+ bfd * abfd;
+ enum bfd_architecture arch;
+ unsigned long machine;
+{
+ unsigned dummy1;
+ unsigned short dummy2;
+ bfd_default_set_arch_mach (abfd, arch, machine);
+
+ if (arch != bfd_arch_unknown &&
+ coff_set_flags (abfd, &dummy1, &dummy2) != true)
+ return false; /* We can't represent this type */
+ return true; /* We're easy ... */
+}
/* Calculate the file position for each section. */
-static void
-coff_compute_section_file_positions(abfd)
-bfd *abfd;
- {
- asection *current;
- file_ptr sofar = FILHSZ;
- if (bfd_get_start_address(abfd)) {
- /*
- A start address may have been added to the original file. In this
- case it will need an optional header to record it.
- */
+static void
+coff_compute_section_file_positions (abfd)
+ bfd * abfd;
+{
+ asection *current;
+ asection *previous = (asection *) NULL;
+ file_ptr sofar = FILHSZ;
+#ifndef I960
+ file_ptr old_sofar;
+#endif
+ if (bfd_get_start_address (abfd))
+ {
+ /* A start address may have been added to the original file. In this
+ case it will need an optional header to record it. */
abfd->flags |= EXEC_P;
}
- if (abfd->flags & EXEC_P)
- sofar += AOUTSZ;
-
-
- sofar += abfd->section_count * SCNHSZ;
-
- for (current = abfd->sections; current != NULL; current =
- current->next) {
+
+ if (abfd->flags & EXEC_P)
+ sofar += AOUTSZ;
+
+ sofar += abfd->section_count * SCNHSZ;
+ for (current = abfd->sections;
+ current != (asection *) NULL;
+ current = current->next)
+ {
+
/* Only deal with sections which have contents */
if (!(current->flags & SEC_HAS_CONTENTS))
continue;
-
- /* Align the sections in the file to the same boundary on
- which they are aligned in virtual memory. I960 doesn't
- do this (FIXME) so we can stay in sync with Intel. 960
- doesn't yet page from files... */
+
+ /* Align the sections in the file to the same boundary on
+ which they are aligned in virtual memory. I960 doesn't
+ do this (FIXME) so we can stay in sync with Intel. 960
+ doesn't yet page from files... */
#ifndef I960
- sofar = ALIGN(sofar, 1 << current->alignment_power);
+ {
+ /* make sure this section is aligned on the right boundary - by
+ padding the previous section up if necessary */
+
+ old_sofar = sofar;
+ sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
+ if (previous != (asection *) NULL)
+ {
+ previous->_raw_size += sofar - old_sofar;
+ }
+ }
+
#endif
/* FIXME, in demand paged files, the low order bits of the file
- offset must match the low order bits of the virtual address.
- "Low order" is apparently implementation defined. Add code
- here to round sofar up to match the virtual address. */
-
+ offset must match the low order bits of the virtual address.
+ "Low order" is apparently implementation defined. Add code
+ here to round sofar up to match the virtual address. */
+
current->filepos = sofar;
- sofar += current->size;
+
+ sofar += current->_raw_size;
+#ifndef I960
+ /* make sure that this section is of the right size too */
+ old_sofar = sofar;
+ sofar = BFD_ALIGN (sofar, 1 << current->alignment_power);
+ current->_raw_size += sofar - old_sofar;
+#endif
+
+#ifdef _LIB
+ /* Force .lib sections to start at zero. The vma is then
+ incremented in coff_set_section_contents. This is right for
+ SVR3.2. */
+ if (strcmp (current->name, _LIB) == 0)
+ bfd_set_section_vma (abfd, current, 0);
+#endif
+
+ previous = current;
}
- obj_relocbase(abfd) = sofar;
- }
+ obj_relocbase (abfd) = sofar;
+}
+
+#ifndef RS6000COFF_C
+/* If .file, .text, .data, .bss symbols are missing, add them. */
+/* @@ Should we only be adding missing symbols, or overriding the aux
+ values for existing section symbols? */
+static boolean
+coff_add_missing_symbols (abfd)
+ bfd *abfd;
+{
+ unsigned int nsyms = bfd_get_symcount (abfd);
+ asymbol **sympp = abfd->outsymbols;
+ asymbol **sympp2;
+ unsigned int i;
+ int need_text = 1, need_data = 1, need_bss = 1, need_file = 1;
+
+ for (i = 0; i < nsyms; i++)
+ {
+ coff_symbol_type *csym = coff_symbol_from (abfd, sympp[i]);
+ CONST char *name;
+ if (csym)
+ {
+ /* only do this if there is a coff representation of the input
+ symbol */
+ if (csym->native && csym->native->u.syment.n_sclass == C_FILE)
+ {
+ need_file = 0;
+ continue;
+ }
+ name = csym->symbol.name;
+ if (!name)
+ continue;
+ if (!strcmp (name, _TEXT))
+ need_text = 0;
+#ifdef APOLLO_M68
+ else if (!strcmp (name, ".wtext"))
+ need_text = 0;
+#endif
+ else if (!strcmp (name, _DATA))
+ need_data = 0;
+ else if (!strcmp (name, _BSS))
+ need_bss = 0;
+ }
+ }
+ /* Now i == bfd_get_symcount (abfd). */
+ /* @@ For now, don't deal with .file symbol. */
+ need_file = 0;
+ if (!need_text && !need_data && !need_bss && !need_file)
+ return true;
+ nsyms += need_text + need_data + need_bss + need_file;
+ sympp2 = (asymbol **) bfd_alloc_by_size_t (abfd, nsyms * sizeof (asymbol *));
+ if (!sympp2)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return false;
+ }
+ memcpy (sympp2, sympp, i * sizeof (asymbol *));
+ if (need_file)
+ {
+ /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
+ abort ();
+ }
+ if (need_text)
+ sympp2[i++] = coff_section_symbol (abfd, _TEXT);
+ if (need_data)
+ sympp2[i++] = coff_section_symbol (abfd, _DATA);
+ if (need_bss)
+ sympp2[i++] = coff_section_symbol (abfd, _BSS);
+ BFD_ASSERT (i == nsyms);
+ bfd_set_symtab (abfd, sympp2, nsyms);
+ return true;
+}
+#endif /* ! defined (RS6000COFF_C) */
/* SUPPRESS 558 */
/* SUPPRESS 529 */
-static boolean
-DEFUN(coff_write_object_contents,(abfd),
-bfd *abfd)
+static boolean
+coff_write_object_contents (abfd)
+ bfd * abfd;
{
- asection *current;
- boolean hasrelocs = false;
- boolean haslinno = false;
- file_ptr reloc_base;
- file_ptr lineno_base;
- file_ptr sym_base;
- file_ptr scn_base;
- file_ptr data_base;
- unsigned long reloc_size = 0;
- unsigned long lnno_size = 0;
- asection *text_sec = NULL;
- asection *data_sec = NULL;
- asection *bss_sec = NULL;
+ asection *current;
+ unsigned int count;
+
+ boolean hasrelocs = false;
+ boolean haslinno = false;
+ file_ptr reloc_base;
+ file_ptr lineno_base;
+ file_ptr sym_base;
+ file_ptr scn_base;
+ file_ptr data_base;
+ unsigned long reloc_size = 0;
+ unsigned long lnno_size = 0;
+ asection *text_sec = NULL;
+ asection *data_sec = NULL;
+ asection *bss_sec = NULL;
struct internal_filehdr internal_f;
struct internal_aouthdr internal_a;
-
- struct icofdata *coff = obj_icof(abfd);
-
-
- bfd_error = system_call_error;
-
-
- if(abfd->output_has_begun == false) {
- coff_compute_section_file_positions(abfd);
- }
-
- if (abfd->sections != (asection *)NULL) {
- scn_base = abfd->sections->filepos;
- }
- else {
- scn_base = 0;
- }
- if (bfd_seek(abfd, scn_base, SEEK_SET) != 0)
- return false;
- reloc_base = obj_relocbase(abfd);
-
- /* Make a pass through the symbol table to count line number entries and
+
+
+ bfd_set_error (bfd_error_system_call);
+ /* Number the output sections, starting from one on the first section
+ with a name which doesn't start with a *.
+ @@ The code doesn't make this check. Is it supposed to be done,
+ or isn't it?? */
+ count = 1;
+ for (current = abfd->sections; current != (asection *) NULL;
+ current = current->next)
+ {
+ current->target_index = count;
+ count++;
+ }
+
+ if (abfd->output_has_begun == false)
+ {
+ coff_compute_section_file_positions (abfd);
+ }
+
+ if (abfd->sections != (asection *) NULL)
+ {
+ scn_base = abfd->sections->filepos;
+ }
+ else
+ {
+ scn_base = 0;
+ }
+ if (bfd_seek (abfd, scn_base, SEEK_SET) != 0)
+ return false;
+ reloc_base = obj_relocbase (abfd);
+
+ /* Make a pass through the symbol table to count line number entries and
put them into the correct asections */
-
- coff_count_linenumbers(abfd);
+
+ lnno_size = coff_count_linenumbers (abfd) * LINESZ;
data_base = scn_base;
-
+
/* Work out the size of the reloc and linno areas */
-
- for (current = abfd->sections; current != NULL; current = current->next) {
- reloc_size += current->reloc_count * RELSZ;
- lnno_size += current->lineno_count * LINESZ;
- data_base += SCNHSZ;
- }
-
+
+ for (current = abfd->sections; current != NULL; current =
+ current->next)
+ {
+ /* We give section headers to +ve indexes */
+ if (current->target_index > 0)
+ {
+
+ reloc_size += current->reloc_count * RELSZ;
+ data_base += SCNHSZ;
+ }
+
+ }
+
lineno_base = reloc_base + reloc_size;
sym_base = lineno_base + lnno_size;
-
+
/* Indicate in each section->line_filepos its actual file address */
- for (current = abfd->sections; current != NULL; current = current->next) {
- if (current->lineno_count) {
- current->line_filepos = lineno_base;
- current->moving_line_filepos = lineno_base;
- lineno_base += current->lineno_count * LINESZ;
- }
- else {
- current->line_filepos = 0;
- }
- if (current->reloc_count) {
- current->rel_filepos = reloc_base;
- reloc_base += current->reloc_count * sizeof(struct internal_reloc);
- }
- else {
- current->rel_filepos = 0;
+ for (current = abfd->sections; current != NULL; current =
+ current->next)
+ {
+ if (current->target_index > 0)
+ {
+
+ if (current->lineno_count)
+ {
+ current->line_filepos = lineno_base;
+ current->moving_line_filepos = lineno_base;
+ lineno_base += current->lineno_count * LINESZ;
+ }
+ else
+ {
+ current->line_filepos = 0;
+ }
+ if (current->reloc_count)
+ {
+ current->rel_filepos = reloc_base;
+ reloc_base += current->reloc_count * RELSZ;
+ }
+ else
+ {
+ current->rel_filepos = 0;
+ }
+ }
}
- }
-
+
+
+
/* Write section headers to the file. */
-
- bfd_seek(abfd,
- (file_ptr) ((abfd->flags & EXEC_P) ?
- (FILHSZ + AOUTSZ) : FILHSZ),
- SEEK_SET);
-
- {
+ internal_f.f_nscns = 0;
+ if (bfd_seek (abfd,
+ (file_ptr) ((abfd->flags & EXEC_P) ?
+ (FILHSZ + AOUTSZ) : FILHSZ),
+ SEEK_SET)
+ != 0)
+ return false;
+
+ {
#if 0
- unsigned int pad = abfd->flags & D_PAGED ? data_base : 0;
+ unsigned int pad = abfd->flags & D_PAGED ? data_base : 0;
#endif
- unsigned int pad = 0;
-
- for (current = abfd->sections; current != NULL; current = current->next) {
+ unsigned int pad = 0;
+
+ for (current = abfd->sections;
+ current != NULL;
+ current = current->next)
+ {
struct internal_scnhdr section;
- strncpy(&(section.s_name[0]), current->name, 8);
- section.s_vaddr = current->vma + pad;
- section.s_paddr = current->vma + pad;
- section.s_size = current->size - pad;
- /*
+ if (current->target_index > 0)
+ {
+ internal_f.f_nscns++;
+ strncpy (&(section.s_name[0]), current->name, 8);
+#ifdef _LIB
+ /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
+ Ian Taylor <ian@cygnus.com>. */
+ if (strcmp (current->name, _LIB) == 0)
+ section.s_vaddr = 0;
+ else
+#endif
+ section.s_vaddr = current->lma + pad;
+ section.s_paddr = current->lma + pad;
+ section.s_size = current->_raw_size - pad;
+ /*
If this section has no size or is unloadable then the scnptr
will be 0 too
*/
- if (current->size - pad == 0 ||
- (current->flags & SEC_LOAD) == 0) {
- section.s_scnptr = 0;
-
- }
- else {
- section.s_scnptr = current->filepos;
- }
- section.s_relptr = current->rel_filepos;
- section.s_lnnoptr = current->line_filepos;
- section.s_nreloc = current->reloc_count;
- section.s_nlnno = current->lineno_count;
- if (current->reloc_count != 0)
- hasrelocs = true;
- if (current->lineno_count != 0)
- haslinno = true;
-
- if (!strcmp(current->name, _TEXT)) {
- text_sec = current;
- section.s_flags = STYP_TEXT; /* kinda stupid */
- }
- else if (!strcmp(current->name, _DATA)) {
- data_sec = current;
- section.s_flags = STYP_DATA; /* kinda stupid */
- }
- else if (!strcmp(current->name, _BSS)) {
- bss_sec = current;
- section.s_flags = STYP_BSS; /* kinda stupid */
- }
-
-
+ if (current->_raw_size - pad == 0 ||
+ (current->flags & (SEC_LOAD | SEC_HAS_CONTENTS)) == 0)
+ {
+ section.s_scnptr = 0;
+ }
+ else
+ {
+ section.s_scnptr = current->filepos;
+ }
+ section.s_relptr = current->rel_filepos;
+ section.s_lnnoptr = current->line_filepos;
+ section.s_nreloc = current->reloc_count;
+ section.s_nlnno = current->lineno_count;
+ if (current->reloc_count != 0)
+ hasrelocs = true;
+ if (current->lineno_count != 0)
+ haslinno = true;
+
+ section.s_flags = sec_to_styp_flags (current->name, current->flags);
+
+ if (!strcmp (current->name, _TEXT))
+ {
+ text_sec = current;
+ }
+ else if (!strcmp (current->name, _DATA))
+ {
+ data_sec = current;
+#ifdef TWO_DATA_SECS
+ }
+ else if (!strcmp (current->name, ".data2"))
+ {
+ data_sec = current;
+#endif /* TWO_DATA_SECS */
+ }
+ else if (!strcmp (current->name, _BSS))
+ {
+ bss_sec = current;
+ }
+
#ifdef I960
- section.s_align = (current->alignment_power
- ? 1 << current->alignment_power
- : 0);
+ section.s_align = (current->alignment_power
+ ? 1 << current->alignment_power
+ : 0);
#endif
- {
- SCNHDR buff;
+ {
+ SCNHDR buff;
+
+ coff_swap_scnhdr_out (abfd, §ion, &buff);
+ if (bfd_write ((PTR) (&buff), 1, SCNHSZ, abfd) != SCNHSZ)
+ return false;
- swap_scnhdr_out(abfd, §ion, &buff);
- bfd_write((PTR) (&buff), 1, SCNHSZ, abfd);
+ }
+ pad = 0;
}
- pad = 0;
}
- }
+ }
+
/* OK, now set up the filehdr... */
- internal_f.f_nscns = abfd->section_count;
+
+ /* Don't include the internal abs section in the section count */
+
/*
We will NOT put a fucking timestamp in the header here. Every time you
- put it back, I will come in and take it out again. I'm sorry. This
+ put it back, I will come in and take it out again. I'm sorry. This
field does not belong here. We fill it with a 0 so it compares the
same but is not a reasonable time. -- gnu@cygnus.com
*/
- /*
- Well, I like it, so I'm conditionally compiling it in.
- steve@cygnus.com
- */
-#ifdef COFF_TIMESTAMP
- internal_f.f_timdat = time(0);
-#else
internal_f.f_timdat = 0;
-#endif
- if (bfd_get_symcount(abfd) != 0)
+ if (bfd_get_symcount (abfd) != 0)
internal_f.f_symptr = sym_base;
else
internal_f.f_symptr = 0;
internal_f.f_flags |= F_RELFLG;
if (!haslinno)
internal_f.f_flags |= F_LNNO;
- if (0 == bfd_get_symcount(abfd))
+ if (0 == bfd_get_symcount (abfd))
internal_f.f_flags |= F_LSYMS;
if (abfd->flags & EXEC_P)
internal_f.f_flags |= F_EXEC;
-#if M88
- internal_f.f_flags |= F_AR32W;
-#else
+
if (!abfd->xvec->byteorder_big_p)
internal_f.f_flags |= F_AR32WR;
-#endif
+ else
+ internal_f.f_flags |= F_AR32W;
+
/*
FIXME, should do something about the other byte orders and
architectures.
*/
+ memset (&internal_a, 0, sizeof internal_a);
+
/* Set up architecture-dependent stuff */
- { int magic = 0;
- int flags = 0;
- coff_set_flags(abfd, &magic, &flags);
- internal_f.f_magic = magic;
- internal_f.f_flags = flags;
+ {
+ unsigned int magic = 0;
+ unsigned short flags = 0;
+ coff_set_flags (abfd, &magic, &flags);
+ internal_f.f_magic = magic;
+ internal_f.f_flags |= flags;
+ /* ...and the "opt"hdr... */
+
+#ifdef A29K
+#ifdef ULTRA3 /* NYU's machine */
+ /* FIXME: This is a bogus check. I really want to see if there
+ * is a .shbss or a .shdata section, if so then set the magic
+ * number to indicate a shared data executable.
+ */
+ if (internal_f.f_nscns >= 7)
+ internal_a.magic = SHMAGIC; /* Shared magic */
+ else
+#endif /* ULTRA3 */
+ internal_a.magic = NMAGIC;/* Assume separate i/d */
+#define __A_MAGIC_SET__
+#endif /* A29K */
+#ifdef I960
+ internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
+#define __A_MAGIC_SET__
+#endif /* I960 */
+#if M88
+#define __A_MAGIC_SET__
+ internal_a.magic = PAGEMAGICBCS;
+#endif /* M88 */
- /* ...and the "opt"hdr... */
+#if APOLLO_M68
+#define __A_MAGIC_SET__
+ internal_a.magic = APOLLO_COFF_VERSION_NUMBER;
+#endif
-#ifdef I960
- internal_a.magic = (magic == I960ROMAGIC ? NMAGIC : OMAGIC);
+#if M68 || WE32K
+#define __A_MAGIC_SET__
+ /* Never was anything here for the 68k */
+#endif /* M68 || WE32K */
+
+#if I386
+#define __A_MAGIC_SET__
+ internal_a.magic = ZMAGIC;
+#endif /* I386 */
+
+#if RS6000COFF_C
+#define __A_MAGIC_SET__
+ internal_a.magic = (abfd->flags & D_PAGED) ? RS6K_AOUTHDR_ZMAGIC :
+ (abfd->flags & WP_TEXT) ? RS6K_AOUTHDR_NMAGIC :
+ RS6K_AOUTHDR_OMAGIC;
#endif
-#if M88
- internal_a.magic = PAGEMAGICBCS;
+
+#ifndef __A_MAGIC_SET__
+#include "Your aouthdr magic number is not being set!"
+#else
+#undef __A_MAGIC_SET__
#endif
- }
+ }
/* Now should write relocs, strings, syms */
- obj_sym_filepos(abfd) = sym_base;
+ obj_sym_filepos (abfd) = sym_base;
- if (bfd_get_symcount(abfd) != 0) {
- coff_mangle_symbols(abfd);
- coff_write_symbols(abfd);
- coff_write_linenumbers(abfd);
- coff_write_relocs(abfd);
- }
- if (text_sec) {
- internal_a.tsize = text_sec->size;
- internal_a.text_start =text_sec->size ? text_sec->vma : 0;
- }
- if (data_sec) {
- internal_a.dsize = data_sec->size;
- internal_a.data_start = data_sec->size ? data_sec->vma : 0;
- }
- if (bss_sec) {
- internal_a.bsize = bss_sec->size;
- }
+ if (bfd_get_symcount (abfd) != 0)
+ {
+#ifndef RS6000COFF_C
+ if (!coff_add_missing_symbols (abfd))
+ return false;
+#endif
+ if (!coff_renumber_symbols (abfd))
+ return false;
+ coff_mangle_symbols (abfd);
+ if (! coff_write_symbols (abfd))
+ return false;
+ if (! coff_write_linenumbers (abfd))
+ return false;
+ if (! coff_write_relocs (abfd))
+ return false;
+ }
+ if (text_sec)
+ {
+ internal_a.tsize = bfd_get_section_size_before_reloc (text_sec);
+ internal_a.text_start = internal_a.tsize ? text_sec->vma : 0;
+ }
+ if (data_sec)
+ {
+ internal_a.dsize = bfd_get_section_size_before_reloc (data_sec);
+ internal_a.data_start = internal_a.dsize ? data_sec->vma : 0;
+ }
+ if (bss_sec)
+ {
+ internal_a.bsize = bfd_get_section_size_before_reloc (bss_sec);
+ }
- internal_a.entry = bfd_get_start_address(abfd);
- internal_f.f_nsyms = bfd_get_symcount(abfd);
+ internal_a.entry = bfd_get_start_address (abfd);
+ internal_f.f_nsyms = bfd_get_symcount (abfd);
/* now write them */
- if (bfd_seek(abfd, 0L, SEEK_SET) != 0)
+ if (bfd_seek (abfd, (file_ptr) 0, SEEK_SET) != 0)
return false;
+ {
+ FILHDR buff;
+ coff_swap_filehdr_out (abfd, (PTR) & internal_f, (PTR) & buff);
+ if (bfd_write ((PTR) & buff, 1, FILHSZ, abfd) != FILHSZ)
+ return false;
+ }
+ if (abfd->flags & EXEC_P)
{
- FILHDR buff;
- bfd_swap_filehdr_out(abfd, &internal_f, &buff);
- bfd_write((PTR) &buff, 1, FILHSZ, abfd);
+ AOUTHDR buff;
+ coff_swap_aouthdr_out (abfd, (PTR) & internal_a, (PTR) & buff);
+ if (bfd_write ((PTR) & buff, 1, AOUTSZ, abfd) != AOUTSZ)
+ return false;
}
- if (abfd->flags & EXEC_P) {
- AOUTHDR buff;
- bfd_swap_aouthdr_out(abfd, &internal_a, &buff);
- bfd_write((PTR) &buff, 1, AOUTSZ, abfd);
- }
return true;
}
-static boolean
-coff_set_section_contents(abfd, section, location, offset, count)
- bfd *abfd;
- sec_ptr section;
- PTR location;
- file_ptr offset;
- size_t count;
+static boolean
+coff_set_section_contents (abfd, section, location, offset, count)
+ bfd * abfd;
+ sec_ptr section;
+ PTR location;
+ file_ptr offset;
+ bfd_size_type count;
{
- if (abfd->output_has_begun == false) /* set by bfd.c handler */
- coff_compute_section_file_positions(abfd);
+ if (abfd->output_has_begun == false) /* set by bfd.c handler */
+ coff_compute_section_file_positions (abfd);
+
+#ifdef _LIB
+ /* If this is a .lib section, bump the vma address so that it
+ winds up being the number of .lib sections output. This is
+ right for SVR3.2. Shared libraries should probably get more
+ generic support. Ian Taylor <ian@cygnus.com>. */
+ if (strcmp (section->name, _LIB) == 0)
+ ++section->lma;
+#endif
+
+ /* Don't write out bss sections - one way to do this is to
+ see if the filepos has not been set. */
+ if (section->filepos == 0)
+ return true;
- bfd_seek(abfd, (file_ptr) (section->filepos + offset), SEEK_SET);
+ if (bfd_seek (abfd, (file_ptr) (section->filepos + offset), SEEK_SET) != 0)
+ return false;
- if (count != 0) {
- return (bfd_write(location, 1, count, abfd) == count) ? true : false;
+ if (count != 0)
+ {
+ return (bfd_write (location, 1, count, abfd) == count) ? true : false;
}
- return true;
+ return true;
}
#if 0
-static boolean
-coff_close_and_cleanup(abfd)
- bfd *abfd;
+static boolean
+coff_close_and_cleanup (abfd)
+ bfd *abfd;
{
- if (!bfd_read_p(abfd))
- switch (abfd->format) {
- case bfd_archive:
- if (!_bfd_write_archive_contents(abfd))
- return false;
- break;
- case bfd_object:
- if (!coff_write_object_contents(abfd))
+ if (!bfd_read_p (abfd))
+ switch (abfd->format)
+ {
+ case bfd_archive:
+ if (!_bfd_write_archive_contents (abfd))
+ return false;
+ break;
+ case bfd_object:
+ if (!coff_write_object_contents (abfd))
+ return false;
+ break;
+ default:
+ bfd_set_error (bfd_error_invalid_operation);
return false;
- break;
- default:
- bfd_error = invalid_operation;
- return false;
- }
+ }
/* We depend on bfd_close to free all the memory on the obstack. */
/* FIXME if bfd_release is not using obstacks! */
}
#endif
-static PTR
-buy_and_read(abfd, where, seek_direction, size)
- bfd *abfd;
- file_ptr where;
- int seek_direction;
- size_t size;
-{
- PTR area = (PTR) bfd_alloc(abfd, size);
- if (!area) {
- bfd_error = no_memory;
- return (NULL);
- }
- bfd_seek(abfd, where, seek_direction);
- if (bfd_read(area, 1, size, abfd) != size) {
- bfd_error = system_call_error;
- return (NULL);
- } /* on error */
- return (area);
-} /* buy_and_read() */
-static void
-DEFUN(offset_symbol_indices,(abfd, symtab, count, offset),
- bfd *abfd AND
- struct internal_syment *symtab AND
- unsigned long count AND
- long offset)
+static PTR
+buy_and_read (abfd, where, seek_direction, size)
+ bfd *abfd;
+ file_ptr where;
+ int seek_direction;
+ size_t size;
{
- struct internal_syment *end = symtab + count;
- for (; symtab < end; ++symtab) {
- if (symtab->n_sclass == C_FILE) {
- symtab->n_value = 0;
- }
- else if (symtab->n_sclass == C_ALIAS) {
- /*
- These guys have indices in their values.
- */
- symtab->n_value = symtab->n_value + offset;
+ PTR area = (PTR) bfd_alloc (abfd, size);
+ if (!area)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return (NULL);
}
- else if (symtab->n_numaux) {
- /*
- anybody else without an aux, has no indices.
- */
-
- if (symtab->n_sclass == C_EOS
- || (BTYPE(symtab->n_type) == T_STRUCT
- && symtab->n_sclass != C_STRTAG)
- || BTYPE(symtab->n_type) == T_UNION
- || BTYPE(symtab->n_type) == T_ENUM) {
- /* If the tagndx is 0 then the struct hasn't really been
- defined, so leave it alone */
-
- if(((union internal_auxent *) (symtab + 1))->x_sym.x_tagndx != 0) {
- ((union internal_auxent *) (symtab + 1))->x_sym.x_tagndx += offset;
- }
-
- } /* These guys have a tagndx */
- if (symtab->n_sclass == C_STRTAG
- || symtab->n_sclass == C_UNTAG
- || symtab->n_sclass == C_ENTAG
- || symtab->n_sclass == C_BLOCK
- || symtab->n_sclass == C_FCN
- || ISFCN(symtab->n_type)) {
-
- ((union internal_auxent *) (symtab +
- 1))->x_sym.x_fcnary.x_fcn.x_endndx
- += offset;
-
- } /* These guys have an endndx */
-#ifndef I960
- if (ISFCN(symtab->n_type)) {
- ((union internal_auxent *) (symtab + 1))->x_sym.x_tvndx += offset;
- } /* These guys have a tvndx. I think...
- (FIXME) */
-#endif /* Not I960 */
-
- } /* if value, else if aux */
- symtab += symtab->n_numaux;
- } /* walk the symtab */
-
- return;
-} /* offset_symbol_indices() */
+ if (bfd_seek (abfd, where, seek_direction) != 0
+ || bfd_read (area, 1, size, abfd) != size)
+ return (NULL);
+ return (area);
+} /* buy_and_read() */
/*
-read a symbol table into freshly mallocated memory, swap it, and knit the
-symbol names into a normalized form. By normalized here I mean that all
-symbols have an n_offset pointer that points to a NULL terminated string.
-Oh, and the first symbol MUST be a C_FILE. If there wasn't one there
-before, put one there.
-*/
+SUBSUBSECTION
+ Reading linenumbers
-static struct internal_syment *
-DEFUN(get_normalized_symtab,(abfd),
-bfd *abfd)
-{
+ Creating the linenumber table is done by reading in the entire
+ coff linenumber table, and creating another table for internal use.
- struct internal_syment *internal;
- struct internal_syment *internal_ptr;
- struct internal_syment *internal_end;
- SYMENT *raw;
- SYMENT *raw_src;
- SYMENT *raw_end;
- char *string_table = NULL;
- unsigned long size;
- char string_table_size_buffer[4];
- unsigned long string_table_size = 0;
- unsigned int raw_size;
- if (obj_raw_syments(abfd) != (struct internal_syment *)NULL) {
- return obj_raw_syments(abfd);
- }
- if ((size = bfd_get_symcount(abfd) * sizeof(struct internal_syment)) == 0) {
- bfd_error = no_symbols;
- return (NULL);
- }
-
- internal = (struct internal_syment *)bfd_alloc(abfd, size);
- internal_end = internal + bfd_get_symcount(abfd);
+ A coff linenumber table is structured so that each function
+ is marked as having a line number of 0. Each line within the
+ function is an offset from the first line in the function. The
+ base of the line number information for the table is stored in
+ the symbol associated with the function.
- raw_size = bfd_get_symcount(abfd) * SYMESZ;
- raw = (SYMENT *)bfd_alloc(abfd,raw_size);
+ The information is copied from the external to the internal
+ table, and each symbol which marks a function is marked by
+ pointing its...
- if (bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET) == -1
- || bfd_read((PTR)raw, raw_size, 1, abfd) != raw_size) {
- bfd_error = system_call_error;
- return (NULL);
- }
- /* mark the end of the symbols */
- raw_end = raw + bfd_get_symcount(abfd);
- /*
- FIXME SOMEDAY. A string table size of zero is very weird, but
- probably possible. If one shows up, it will probably kill us.
- */
+ How does this work ?
- /* Swap all the raw entries */
- for (raw_src = raw, internal_ptr = internal; raw_src < raw_end; raw_src++, internal_ptr++) {
- unsigned int i;
- coff_swap_sym_in(abfd, raw_src,internal_ptr);
- for (i = internal_ptr->n_numaux; i; --i, raw_src++, internal_ptr++) {
- coff_swap_aux_in(abfd, (AUXENT *)(raw_src +1), internal_ptr->n_type,
- internal_ptr->n_sclass, (union
- internal_auxent *)(internal_ptr +1));
- }
- }
-
- /* Free all the raw stuff */
- bfd_release(abfd, raw_src);
-
- for (internal_ptr = internal; internal_ptr < internal_end; internal_ptr ++) {
-
- if (internal_ptr->_n._n_n._n_zeroes != 0) {
- /*
- This is a "short" name. Make it long.
- */
- unsigned long i = 0;
- char *newstring = NULL;
- /*
- find the length of this string without walking into memory
- that isn't ours.
- */
-
- for (i = 0; i < 8; ++i) {
- if (internal_ptr->_n._n_name[i] == '\0') {
- break;
- } /* if end of string */
- } /* possible lengths of this string. */
-
- if ((newstring = (PTR) bfd_alloc(abfd, ++i)) == NULL) {
- bfd_error = no_memory;
- return (NULL);
- } /* on error */
- bzero(newstring, i);
- strncpy(newstring, internal_ptr->_n._n_name, i-1);
- internal_ptr->_n._n_n._n_offset = (int) newstring;
- internal_ptr->_n._n_n._n_zeroes = 0;
-
- }
- else {
- if (string_table == NULL) {
- /*
- NOTE: we don't read the string table until now because we
- don't necessarily know that we have one until now.
- */
- /*
- At this point we should be "seek"'d to the end of the
- symbols === the symbol table size.
- */
-
- if (bfd_read((char *) string_table_size_buffer,
- sizeof(string_table_size_buffer),
- 1, abfd) != sizeof(string_table_size)) {
- bfd_error = system_call_error;
- return (NULL);
- } /* on error */
-
- string_table_size = bfd_h_get_32(abfd, string_table_size_buffer);
-
- if ((string_table = (PTR) bfd_alloc(abfd, string_table_size -= 4)) == NULL) {
- bfd_error = no_memory;
- return (NULL);
- } /* on mallocation error */
- if (bfd_read(string_table, string_table_size, 1, abfd) != string_table_size) {
- bfd_error = system_call_error;
- return (NULL);
- } /* on error */
- } /* have not yet read the string table. */
- /*
- This is a long name already. Just point it at the string in
- memory.
- */
- internal_ptr->_n._n_n._n_offset = (int) (string_table - 4 + internal_ptr->_n._n_n._n_offset);
-
- } /* switch on type of symbol name */
-
- internal_ptr += internal_ptr->n_numaux;
- } /* for each symbol */
-#if 0
-#ifndef GNU960
- /* I'm not sure of the repercussions of this, so the Intel
- folks will always do the force
- */
- if (obj_symbol_slew(abfd) > 0)
- force_indices_file_symbol_relative(abfd, internal);
-#else
- force_indices_file_symbol_relative(abfd, internal);
-#endif
-#endif
- obj_raw_syments(abfd) = internal;
- obj_string_table(abfd) = string_table;
-
- return (internal);
-} /* get_normalized_symtab() */
+*/
-static
-struct sec *
-DEFUN(section_from_bfd_index,(abfd, index),
- bfd *abfd AND
- int index)
+static boolean
+coff_slurp_line_table (abfd, asect)
+ bfd *abfd;
+ asection *asect;
{
- if (index > 0) {
- struct sec *answer = abfd->sections;
- while (--index) {
- answer = answer->next;
+ LINENO *native_lineno;
+ alent *lineno_cache;
+
+ BFD_ASSERT (asect->lineno == (alent *) NULL);
+
+ native_lineno = (LINENO *) buy_and_read (abfd,
+ asect->line_filepos,
+ SEEK_SET,
+ (size_t) (LINESZ *
+ asect->lineno_count));
+ lineno_cache =
+ (alent *) bfd_alloc (abfd, (size_t) ((asect->lineno_count + 1) * sizeof (alent)));
+ if (lineno_cache == NULL)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return false;
}
- return answer;
- }
- return 0;
-}
-
+ else
+ {
+ unsigned int counter = 0;
+ alent *cache_ptr = lineno_cache;
+ LINENO *src = native_lineno;
+ while (counter < asect->lineno_count)
+ {
+ struct internal_lineno dst;
+ coff_swap_lineno_in (abfd, src, &dst);
+ cache_ptr->line_number = dst.l_lnno;
+ if (cache_ptr->line_number == 0)
+ {
+ coff_symbol_type *sym =
+ (coff_symbol_type *) (dst.l_addr.l_symndx
+ + obj_raw_syments (abfd))->u.syment._n._n_n._n_zeroes;
+ cache_ptr->u.sym = (asymbol *) sym;
+ sym->lineno = cache_ptr;
+ }
+ else
+ {
+ cache_ptr->u.offset = dst.l_addr.l_paddr
+ - bfd_section_vma (abfd, asect);
+ } /* If no linenumber expect a symbol index */
-static boolean
-coff_slurp_line_table(abfd, asect)
-bfd *abfd;
-asection *asect;
- {
- LINENO *native_lineno;
- alent *lineno_cache;
-
- BFD_ASSERT(asect->lineno == (alent *) NULL);
-
- native_lineno = (LINENO *) buy_and_read(abfd,
- asect->line_filepos,
- SEEK_SET,
- (size_t) (LINESZ *
- asect->lineno_count));
- lineno_cache =
- (alent *) bfd_alloc(abfd, (size_t) ((asect->lineno_count + 1) * sizeof(alent)));
- if (lineno_cache == NULL) {
- bfd_error = no_memory;
- return false;
- } else {
- unsigned int counter = 0;
- alent *cache_ptr = lineno_cache;
- LINENO *src = native_lineno;
-
- while (counter < asect->lineno_count) {
- struct internal_lineno dst;
- coff_swap_lineno_in(abfd, src, &dst);
- cache_ptr->line_number = dst.l_lnno;
-
- if (cache_ptr->line_number == 0) {
- coff_symbol_type *sym =
- (coff_symbol_type *) (dst.l_addr.l_symndx
- + obj_symbol_slew(abfd)
- + obj_raw_syments(abfd))->_n._n_n._n_zeroes;
- cache_ptr->u.sym = (asymbol *) sym;
- sym->lineno = cache_ptr;
+ cache_ptr++;
+ src++;
+ counter++;
}
- else {
- cache_ptr->u.offset = dst.l_addr.l_paddr
- - bfd_section_vma(abfd, asect);
- } /* If no linenumber expect a symbol index */
-
- cache_ptr++;
- src++;
- counter++;
- }
cache_ptr->line_number = 0;
-
+
}
- asect->lineno = lineno_cache;
- /* FIXME, free native_lineno here, or use alloca or something. */
+ asect->lineno = lineno_cache;
+ /* FIXME, free native_lineno here, or use alloca or something. */
+ return true;
+}
+
+static boolean
+coff_slurp_symbol_table (abfd)
+ bfd * abfd;
+{
+ combined_entry_type *native_symbols;
+ coff_symbol_type *cached_area;
+ unsigned int *table_ptr;
+
+ unsigned int number_of_symbols = 0;
+ if (obj_symbols (abfd))
return true;
- } /* coff_slurp_line_table() */
+ if (bfd_seek (abfd, obj_sym_filepos (abfd), SEEK_SET) != 0)
+ return false;
-static boolean
-DEFUN(coff_slurp_symbol_table,(abfd),
- bfd *abfd)
- {
- struct internal_syment *native_symbols;
- coff_symbol_type *cached_area;
- unsigned int *table_ptr;
-
- unsigned int number_of_symbols = 0;
- if (obj_symbols(abfd))
- return true;
- bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET);
-
- /* Read in the symbol table */
- if ((native_symbols = get_normalized_symtab(abfd)) == NULL) {
+ /* Read in the symbol table */
+ if ((native_symbols = coff_get_normalized_symtab (abfd)) == NULL)
+ {
return (false);
} /* on error */
-
-
- /* Allocate enough room for all the symbols in cached form */
- cached_area =
- (coff_symbol_type *)
- bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(coff_symbol_type)));
-
- if (cached_area == NULL) {
- bfd_error = no_memory;
+
+ /* Allocate enough room for all the symbols in cached form */
+ cached_area =
+ (coff_symbol_type *)
+ bfd_alloc (abfd, (size_t) (bfd_get_symcount (abfd) * sizeof (coff_symbol_type)));
+
+ if (cached_area == NULL)
+ {
+ bfd_set_error (bfd_error_no_memory);
return false;
} /* on error */
- table_ptr =
- (unsigned int *)
- bfd_alloc(abfd, (size_t) (bfd_get_symcount(abfd) * sizeof(unsigned int)));
-
- if (table_ptr == NULL) {
- bfd_error = no_memory;
+ table_ptr =
+ (unsigned int *)
+ bfd_alloc (abfd, (size_t) (bfd_get_symcount (abfd) * sizeof (unsigned int)));
+
+ if (table_ptr == NULL)
+ {
+ bfd_set_error (bfd_error_no_memory);
return false;
- } else {
+ }
+ else
+ {
coff_symbol_type *dst = cached_area;
- unsigned int last_native_index = bfd_get_symcount(abfd);
- unsigned int this_index = 0;
- while (this_index < last_native_index) {
- struct internal_syment *src = native_symbols + this_index;
- table_ptr[this_index] = number_of_symbols;
- dst->symbol.the_bfd = abfd;
-
- dst->symbol.name = (char *)(src->_n._n_n._n_offset);
- /*
- We use the native name field to point to the cached field
- */
- src->_n._n_n._n_zeroes = (int) dst;
- dst->symbol.section = section_from_bfd_index(abfd,
- src->n_scnum);
- switch (src->n_sclass) {
+ unsigned int last_native_index = bfd_get_symcount (abfd);
+ unsigned int this_index = 0;
+ while (this_index < last_native_index)
+ {
+ combined_entry_type *src = native_symbols + this_index;
+ table_ptr[this_index] = number_of_symbols;
+ dst->symbol.the_bfd = abfd;
+
+ dst->symbol.name = (char *) (src->u.syment._n._n_n._n_offset);
+ /* We use the native name field to point to the cached field. */
+ src->u.syment._n._n_n._n_zeroes = (long) dst;
+ dst->symbol.section = coff_section_from_bfd_index (abfd,
+ src->u.syment.n_scnum);
+ dst->symbol.flags = 0;
+ dst->done_lineno = false;
+
+ switch (src->u.syment.n_sclass)
+ {
#ifdef I960
- case C_LEAFEXT:
+ case C_LEAFEXT:
#if 0
- dst->symbol.value = src->n_value - dst->symbol.section->vma;
- dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
- dst->symbol.flags |= BSF_NOT_AT_END;
-#endif
- /* Fall through to next case */
-
-#endif
-
- case C_EXT:
- if ((src->n_scnum) == 0) {
- if ((src->n_value) == 0) {
- dst->symbol.flags = BSF_UNDEFINED;
- dst->symbol.value= 0;
- }
- else {
- dst->symbol.flags = BSF_FORT_COMM;
- dst->symbol.value = (src->n_value);
- }
- }
- else {
- /*
- Base the value as an index from the base of the
- section
- */
- if (dst->symbol.section == (asection *) NULL) {
- dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL | BSF_ABSOLUTE;
- dst->symbol.value = src->n_value;
- }
- else {
+ dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
- dst->symbol.value = src->n_value - dst->symbol.section->vma;
- }
- if (ISFCN((src->n_type))) {
- /*
- A function ext does not go at the end of a file
- */
dst->symbol.flags |= BSF_NOT_AT_END;
- }
- }
-
- break;
- case C_STAT: /* static */
-#ifdef I960
- case C_LEAFSTAT: /* static leaf procedure */
#endif
- case C_LABEL: /* label */
- dst->symbol.flags = BSF_LOCAL;
- /*
- Base the value as an index from the base of the section
- */
- dst->symbol.value = (src->n_value) - dst->symbol.section->vma;
- break;
-
- case C_MOS: /* member of structure */
- case C_EOS: /* end of structure */
- case C_REGPARM: /* register parameter */
- case C_REG: /* register variable */
-#ifdef C_AUTOARG
- case C_AUTOARG: /* 960-specific storage class */
-#endif
- case C_TPDEF: /* type definition */
-
- case C_ARG:
- case C_AUTO: /* automatic variable */
- case C_FIELD: /* bit field */
- case C_ENTAG: /* enumeration tag */
- case C_MOE: /* member of enumeration */
- case C_MOU: /* member of union */
- case C_UNTAG: /* union tag */
-
- dst->symbol.flags = BSF_DEBUGGING;
- dst->symbol.value = (src->n_value);
- break;
-
- case C_FILE: /* file name */
- case C_STRTAG: /* structure tag */
- dst->symbol.flags = BSF_DEBUGGING;
- dst->symbol.value = (src->n_value);
-
- break;
- case C_BLOCK: /* ".bb" or ".eb" */
- case C_FCN: /* ".bf" or ".ef" */
- dst->symbol.flags = BSF_LOCAL;
- /*
- Base the value as an index from the base of the section
- */
- dst->symbol.value = (src->n_value) - dst->symbol.section->vma;
-
- break;
- case C_EFCN: /* physical end of function */
- case C_NULL:
- case C_EXTDEF: /* external definition */
- case C_ULABEL: /* undefined label */
- case C_USTATIC: /* undefined static */
- case C_LINE: /* line # reformatted as symbol table entry */
- case C_ALIAS: /* duplicate tag */
- case C_HIDDEN: /* ext symbol in dmert public lib */
-
- default:
-
- abort();
- dst->symbol.flags = BSF_DEBUGGING;
- dst->symbol.value = (src->n_value);
-
- break;
- }
-
- BFD_ASSERT(dst->symbol.flags != 0);
-
- dst->native = src;
-
- dst->symbol.udata = 0;
- dst->lineno = (alent *) NULL;
- this_index += (src->n_numaux) + 1;
- dst++;
- number_of_symbols++;
- } /* walk the native symtab */
- } /* bfdize the native symtab */
-
- obj_symbols(abfd) = cached_area;
- obj_raw_syments(abfd) = native_symbols;
-
- bfd_get_symcount(abfd) = number_of_symbols;
- obj_convert(abfd) = table_ptr;
- /* Slurp the line tables for each section too */
- {
- asection *p;
- p = abfd->sections;
- while (p) {
- coff_slurp_line_table(abfd, p);
- p = p->next;
- }
- }
- return true;
- } /* coff_slurp_symbol_table() */
+ /* Fall through to next case */
-static unsigned int
-coff_get_symtab_upper_bound(abfd)
-bfd *abfd;
- {
- if (!coff_slurp_symbol_table(abfd))
- return 0;
-
- return (bfd_get_symcount(abfd) + 1) * (sizeof(coff_symbol_type *));
- }
+#endif
+ case C_EXT:
+#ifdef RS6000COFF_C
+ case C_HIDEXT:
+#endif
+ if ((src->u.syment.n_scnum) == 0)
+ {
+ if ((src->u.syment.n_value) == 0)
+ {
+ dst->symbol.section = &bfd_und_section;
+ dst->symbol.value = 0;
+ }
+ else
+ {
+ dst->symbol.section = &bfd_com_section;
+ dst->symbol.value = (src->u.syment.n_value);
+ }
+ }
+ else
+ {
+ /*
+ Base the value as an index from the base of the
+ section
+ */
-static unsigned int
-coff_get_symtab(abfd, alocation)
-bfd *abfd;
-asymbol **alocation;
- {
- unsigned int counter = 0;
- coff_symbol_type *symbase;
- coff_symbol_type **location = (coff_symbol_type **) (alocation);
- if (!coff_slurp_symbol_table(abfd))
- return 0;
-
- for (symbase = obj_symbols(abfd); counter++ < bfd_get_symcount(abfd);)
- *(location++) = symbase++;
- *location++ = 0;
- return bfd_get_symcount(abfd);
- }
+ dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
+ dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
-static unsigned int
-coff_get_reloc_upper_bound(abfd, asect)
-bfd *abfd;
-sec_ptr asect;
- {
- if (bfd_get_format(abfd) != bfd_object) {
- bfd_error = invalid_operation;
- return 0;
- }
- return (asect->reloc_count + 1) * sizeof(arelent *);
- }
+ if (ISFCN ((src->u.syment.n_type)))
+ {
+ /*
+ A function ext does not go at the end of a file
+ */
+ dst->symbol.flags |= BSF_NOT_AT_END;
+ }
+ }
-static boolean
-DEFUN(coff_slurp_reloc_table,(abfd, asect, symbols),
- bfd *abfd AND
- sec_ptr asect AND
- asymbol **symbols)
- {
- RELOC *native_relocs;
- arelent *reloc_cache;
- if (asect->relocation)
- return true;
- if (asect->reloc_count == 0)
- return true;
- if (!coff_slurp_symbol_table(abfd))
- return false;
- native_relocs =
- (RELOC *) buy_and_read(abfd,
- asect->rel_filepos,
- SEEK_SET,
- (size_t) (RELSZ *
- asect->reloc_count));
- reloc_cache = (arelent *)
- bfd_alloc(abfd, (size_t) (asect->reloc_count * sizeof(arelent)));
-
- if (reloc_cache == NULL) {
- bfd_error = no_memory;
- return false;
- } { /* on error */
- arelent *cache_ptr;
- RELOC *src;
- for (cache_ptr = reloc_cache,
- src = native_relocs;
- cache_ptr < reloc_cache + asect->reloc_count;
- cache_ptr++,
- src++) {
- struct internal_reloc dst;
- asymbol *ptr;
- bfd_swap_reloc_in(abfd, src, &dst);
- dst.r_symndx += obj_symbol_slew(abfd);
- cache_ptr->sym_ptr_ptr = symbols + obj_convert(abfd)[dst.r_symndx];
-
- ptr = *(cache_ptr->sym_ptr_ptr);
- cache_ptr->address = dst.r_vaddr;
- /*
- The symbols definitions that we have read in have been
- relocated as if their sections started at 0. But the offsets
- refering to the symbols in the raw data have not been
- modified, so we have to have a negative addend to compensate.
-
- Note that symbols which used to be common must be left alone
- */
-
- if (ptr->the_bfd == abfd
- && ptr->section != (asection *) NULL
- && ((ptr->flags & BSF_OLD_COMMON)== 0))
- {
- cache_ptr->addend = -(ptr->section->vma + ptr->value);
- }
- else {
- cache_ptr->addend = 0;
- }
-
- cache_ptr->address -= asect->vma;
-
- cache_ptr->section = (asection *) NULL;
+#ifdef RS6000COFF_C
+ /* If this symbol has a csect aux of type LD, the scnlen field
+ is actually the index of the containing csect symbol. We
+ need to pointerize it. */
+ if (src->u.syment.n_numaux > 0)
+ {
+ combined_entry_type *aux;
+
+ aux = src + src->u.syment.n_numaux - 1;
+ if (SMTYP_SMTYP (aux->u.auxent.x_csect.x_smtyp) == XTY_LD)
+ {
+ aux->u.auxent.x_csect.x_scnlen.p =
+ native_symbols + aux->u.auxent.x_csect.x_scnlen.l;
+ aux->fix_scnlen = 1;
+ }
+ }
+#endif
-#if I386
- cache_ptr->howto = howto_table + dst.r_type;
+ break;
+
+ case C_STAT: /* static */
+#ifdef I960
+ case C_LEAFSTAT: /* static leaf procedure */
#endif
-#if I960
- cache_ptr->howto = howto_table + dst.r_type;
+ case C_LABEL: /* label */
+ if (src->u.syment.n_scnum == -2)
+ dst->symbol.flags = BSF_DEBUGGING;
+ else
+ dst->symbol.flags = BSF_LOCAL;
+ /*
+ Base the value as an index from the base of the section, if
+ there is one
+ */
+ if (dst->symbol.section)
+ dst->symbol.value = (src->u.syment.n_value) -
+ dst->symbol.section->vma;
+ else
+ dst->symbol.value = (src->u.syment.n_value);
+ break;
+
+ case C_MOS: /* member of structure */
+ case C_EOS: /* end of structure */
+#ifdef NOTDEF /* C_AUTOARG has the same value */
+#ifdef C_GLBLREG
+ case C_GLBLREG: /* A29k-specific storage class */
#endif
-#if M68
- cache_ptr->howto = howto_table + dst.r_type - R_RELBYTE;
#endif
-#if M88
- if (dst.r_type >= R_PCR16L && dst.r_type <= R_VRT32) {
- cache_ptr->howto = howto_table + dst.r_type - R_PCR16L;
- cache_ptr->addend += dst.r_offset << 16;
- }
- else {
- BFD_ASSERT(0);
- }
+ case C_REGPARM: /* register parameter */
+ case C_REG: /* register variable */
+#ifdef C_AUTOARG
+ case C_AUTOARG: /* 960-specific storage class */
+#endif
+ case C_TPDEF: /* type definition */
+ case C_ARG:
+ case C_AUTO: /* automatic variable */
+ case C_FIELD: /* bit field */
+ case C_ENTAG: /* enumeration tag */
+ case C_MOE: /* member of enumeration */
+ case C_MOU: /* member of union */
+ case C_UNTAG: /* union tag */
+ dst->symbol.flags = BSF_DEBUGGING;
+ dst->symbol.value = (src->u.syment.n_value);
+ break;
+
+ case C_FILE: /* file name */
+ case C_STRTAG: /* structure tag */
+#ifdef RS6000COFF_C
+ case C_BINCL: /* beginning of include file */
+ case C_EINCL: /* ending of include file */
+ case C_GSYM:
+ case C_LSYM:
+ case C_PSYM:
+ case C_RSYM:
+ case C_RPSYM:
+ case C_STSYM:
+ case C_DECL:
+ case C_ENTRY:
+ case C_FUN:
+ case C_ESTAT:
+#endif
+ dst->symbol.flags = BSF_DEBUGGING;
+ dst->symbol.value = (src->u.syment.n_value);
+ break;
+
+#ifdef RS6000COFF_C
+ case C_BSTAT:
+ dst->symbol.flags = BSF_DEBUGGING;
+ dst->symbol.value = src->u.syment.n_value;
+
+ /* The value is actually a symbol index. Save a pointer to
+ the symbol instead of the index. FIXME: This should use a
+ union. */
+ src->u.syment.n_value =
+ (long) (native_symbols + src->u.syment.n_value);
+ src->fix_value = 1;
+ break;
#endif
-
- }
-
- }
-
- asect->relocation = reloc_cache;
- return true;
- }
+ case C_BLOCK: /* ".bb" or ".eb" */
+ case C_FCN: /* ".bf" or ".ef" */
+ case C_EFCN: /* physical end of function */
+ dst->symbol.flags = BSF_LOCAL;
+ /*
+ Base the value as an index from the base of the section
+ */
+ dst->symbol.value = (src->u.syment.n_value) - dst->symbol.section->vma;
+ break;
+
+ case C_NULL:
+ case C_EXTDEF: /* external definition */
+ case C_ULABEL: /* undefined label */
+ case C_USTATIC: /* undefined static */
+ case C_LINE: /* line # reformatted as symbol table entry */
+ case C_ALIAS: /* duplicate tag */
+ case C_HIDDEN: /* ext symbol in dmert public lib */
+ default:
+
+ fprintf (stderr, "Unrecognized storage class %d (assuming debugging)\n for %s symbol `%s'\n",
+ src->u.syment.n_sclass, dst->symbol.section->name,
+ dst->symbol.name);
+/* abort();*/
+ dst->symbol.flags = BSF_DEBUGGING;
+ dst->symbol.value = (src->u.syment.n_value);
+ break;
+ }
+
+/* BFD_ASSERT(dst->symbol.flags != 0);*/
+
+ dst->native = src;
+
+ dst->symbol.udata = 0;
+ dst->lineno = (alent *) NULL;
+ this_index += (src->u.syment.n_numaux) + 1;
+ dst++;
+ number_of_symbols++;
+ } /* walk the native symtab */
+ } /* bfdize the native symtab */
+
+ obj_symbols (abfd) = cached_area;
+ obj_raw_syments (abfd) = native_symbols;
-/* This is stupid. This function should be a boolean predicate */
-static unsigned int
-coff_canonicalize_reloc(abfd, section, relptr, symbols)
-bfd *abfd;
-sec_ptr section;
-arelent **relptr;
-asymbol **symbols;
+ obj_conv_table_size (abfd) = bfd_get_symcount (abfd);
+ bfd_get_symcount (abfd) = number_of_symbols;
+ obj_convert (abfd) = table_ptr;
+ /* Slurp the line tables for each section too */
{
- arelent *tblptr = section->relocation;
- unsigned int count = 0;
- if (!(tblptr || coff_slurp_reloc_table(abfd, section, symbols)))
- return 0;
- tblptr = section->relocation;
- if (!tblptr)
- return 0;
-
- for (; count++ < section->reloc_count;)
- *relptr++ = tblptr++;
-
- *relptr = 0;
-
- return section->reloc_count;
+ asection *p;
+ p = abfd->sections;
+ while (p)
+ {
+ coff_slurp_line_table (abfd, p);
+ p = p->next;
+ }
}
-
+ return true;
+} /* coff_slurp_symbol_table() */
/*
-provided a bfd, a section and an offset into the section, calculate and
-return the name of the source file and the line nearest to the wanted
-location.
+SUBSUBSECTION
+ Reading relocations
+
+ Coff relocations are easily transformed into the internal BFD form
+ (@code{arelent}).
+
+ Reading a coff relocation table is done in the following stages:
+
+ o Read the entire coff relocation table into memory.
+
+ o Process each relocation in turn; first swap it from the
+ external to the internal form.
+
+ o Turn the symbol referenced in the relocation's symbol index
+ into a pointer into the canonical symbol table.
+ This table is the same as the one returned by a call to
+ @code{bfd_canonicalize_symtab}. The back end will call that
+ routine and save the result if a canonicalization hasn't been done.
+
+ o The reloc index is turned into a pointer to a howto
+ structure, in a back end specific way. For instance, the 386
+ and 960 use the @code{r_type} to directly produce an index
+ into a howto table vector; the 88k subtracts a number from the
+ @code{r_type} field and creates an addend field.
+
+
*/
-static boolean
-DEFUN(coff_find_nearest_line,(abfd,
- section,
- symbols,
- offset,
- filename_ptr,
- functionname_ptr,
- line_ptr),
- bfd *abfd AND
- asection *section AND
- asymbol **symbols AND
- bfd_vma offset AND
- CONST char **filename_ptr AND
- CONST char **functionname_ptr AND
- unsigned int *line_ptr)
+#ifndef CALC_ADDEND
+#define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
+ { \
+ coff_symbol_type *coffsym = (coff_symbol_type *) NULL; \
+ if (ptr && bfd_asymbol_bfd (ptr) != abfd) \
+ coffsym = (obj_symbols (abfd) \
+ + (cache_ptr->sym_ptr_ptr - symbols)); \
+ else if (ptr) \
+ coffsym = coff_symbol_from (abfd, ptr); \
+ if (coffsym != (coff_symbol_type *) NULL \
+ && coffsym->native->u.syment.n_scnum == 0) \
+ cache_ptr->addend = 0; \
+ else if (ptr && bfd_asymbol_bfd (ptr) == abfd \
+ && ptr->section != (asection *) NULL) \
+ cache_ptr->addend = - (ptr->section->vma + ptr->value); \
+ else \
+ cache_ptr->addend = 0; \
+ }
+#endif
+
+static boolean
+coff_slurp_reloc_table (abfd, asect, symbols)
+ bfd * abfd;
+ sec_ptr asect;
+ asymbol ** symbols;
{
- static bfd *cache_abfd;
- static asection *cache_section;
- static bfd_vma cache_offset;
- static unsigned int cache_i;
- static alent *cache_l;
-
- unsigned int i = 0;
- struct icofdata *cof = obj_icof(abfd);
- /* Run through the raw syments if available */
- struct internal_syment *p;
- alent *l;
- unsigned int line_base = 0;
-
-
- *filename_ptr = 0;
- *functionname_ptr = 0;
- *line_ptr = 0;
-
- /* Don't try and find line numbers in a non coff file */
- if (abfd->xvec->flavour != bfd_target_coff_flavour_enum)
- return false;
-
- if (cof == (struct icofdata *)NULL)
+ RELOC *native_relocs;
+ arelent *reloc_cache;
+ arelent *cache_ptr;
+
+ unsigned int idx;
+
+ if (asect->relocation)
+ return true;
+ if (asect->reloc_count == 0)
+ return true;
+ if (asect->flags & SEC_CONSTRUCTOR)
+ return true;
+ if (!coff_slurp_symbol_table (abfd))
return false;
-
- p = cof->raw_syments;
- /*
- I don't know for sure what's right, but this isn't it. First off, an
- object file may not have any C_FILE's in it. After
- get_normalized_symtab(), it should have at least 1, the one I put
- there, but otherwise, all bets are off. Point #2, the first C_FILE
- isn't necessarily the right C_FILE because any given object may have
- many. I think you'll have to track sections as they coelesce in order
- to find the C_STAT symbol for this section. Then you'll have to work
- backwards to find the previous C_FILE, or choke if you get to a C_STAT
- for the same kind of section. That will mean that the original object
- file didn't have a C_FILE. xoxorich.
- */
-
-/*
-#ifdef WEREBEINGPEDANTIC
- return false;
+ native_relocs =
+ (RELOC *) buy_and_read (abfd,
+ asect->rel_filepos,
+ SEEK_SET,
+ (size_t) (RELSZ *
+ asect->reloc_count));
+ reloc_cache = (arelent *)
+ bfd_alloc (abfd, (size_t) (asect->reloc_count * sizeof (arelent)));
+
+ if (reloc_cache == NULL)
+ {
+ bfd_set_error (bfd_error_no_memory);
+ return false;
+ }
+
+
+ for (idx = 0; idx < asect->reloc_count; idx++)
+ {
+#ifdef RELOC_PROCESSING
+ struct internal_reloc dst;
+ struct external_reloc *src;
+
+ cache_ptr = reloc_cache + idx;
+ src = native_relocs + idx;
+ bfd_swap_reloc_in (abfd, src, &dst);
+
+ RELOC_PROCESSING (cache_ptr, &dst, symbols, abfd, asect);
+#else
+ struct internal_reloc dst;
+ asymbol *ptr;
+ struct external_reloc *src;
+
+ cache_ptr = reloc_cache + idx;
+ src = native_relocs + idx;
+
+ bfd_swap_reloc_in (abfd, src, &dst);
+
+
+ cache_ptr->address = dst.r_vaddr;
+
+ if (dst.r_symndx != -1)
+ {
+ /* @@ Should never be greater than count of symbols! */
+ if (dst.r_symndx >= obj_conv_table_size (abfd))
+ abort ();
+ cache_ptr->sym_ptr_ptr = symbols + obj_convert (abfd)[dst.r_symndx];
+ ptr = *(cache_ptr->sym_ptr_ptr);
+ }
+ else
+ {
+ cache_ptr->sym_ptr_ptr = bfd_abs_section.symbol_ptr_ptr;
+ ptr = 0;
+ }
+
+ /* The symbols definitions that we have read in have been
+ relocated as if their sections started at 0. But the offsets
+ refering to the symbols in the raw data have not been
+ modified, so we have to have a negative addend to compensate.
+
+ Note that symbols which used to be common must be left alone */
+
+ /* Calculate any reloc addend by looking at the symbol */
+ CALC_ADDEND (abfd, ptr, dst, cache_ptr);
+
+ cache_ptr->address -= asect->vma;
+/* !! cache_ptr->section = (asection *) NULL;*/
+
+ /* Fill in the cache_ptr->howto field from dst.r_type */
+ RTYPE2HOWTO (cache_ptr, &dst);
#endif
- */
- for (i = 0; i < cof->raw_syment_count; i++) {
- if (p->n_sclass == C_FILE) {
- /* File name is embeded in auxent */
- /*
- This isn't right. The fname should probably be normalized
- during get_normalized_symtab(). In any case, what was here
- wasn't right because a SYMENT.n_name isn't an
- AUXENT.x_file.x_fname. xoxorich.
- */
-
- *filename_ptr = ((AUXENT *) (p + 1))->x_file.x_fname;
- break;
+
}
- p += 1 + p->n_numaux;
- }
- /* Now wander though the raw linenumbers of the section */
- /*
- If this is the same bfd as we were previously called with and this is
- the same section, and the offset we want is further down then we can
- prime the lookup loop
- */
- if (abfd == cache_abfd &&
- section == cache_section &&
- offset >= cache_offset) {
- i = cache_i;
- l = cache_l;
- }
- else {
- i = 0;
- l = section->lineno;
- }
-
- for (; i < section->lineno_count; i++) {
- if (l->line_number == 0) {
- /* Get the symbol this line number points at */
- coff_symbol_type *coff = (coff_symbol_type *) (l->u.sym);
- *functionname_ptr = coff->symbol.name;
- if (coff->native) {
- struct internal_syment *s = coff->native;
- s = s + 1 + s->n_numaux;
- /*
- S should now point to the .bf of the function
- */
- if (s->n_numaux) {
- /*
- The linenumber is stored in the auxent
- */
- union internal_auxent *a = (union internal_auxent *) (s + 1);
- line_base = a->x_sym.x_misc.x_lnsz.x_lnno;
+
+ asect->relocation = reloc_cache;
+ return true;
+}
+
+
+/* This is stupid. This function should be a boolean predicate. */
+static long
+coff_canonicalize_reloc (abfd, section, relptr, symbols)
+ bfd * abfd;
+ sec_ptr section;
+ arelent ** relptr;
+ asymbol ** symbols;
+{
+ arelent *tblptr = section->relocation;
+ unsigned int count = 0;
+
+
+ if (section->flags & SEC_CONSTRUCTOR)
+ {
+ /* this section has relocs made up by us, they are not in the
+ file, so take them out of their chain and place them into
+ the data area provided */
+ arelent_chain *chain = section->constructor_chain;
+ for (count = 0; count < section->reloc_count; count++)
+ {
+ *relptr++ = &chain->relent;
+ chain = chain->next;
}
- }
+
}
- else {
- if (l->u.offset > offset)
- break;
- *line_ptr = l->line_number + line_base + 1;
+ else
+ {
+ if (! coff_slurp_reloc_table (abfd, section, symbols))
+ return -1;
+
+ tblptr = section->relocation;
+
+ for (; count++ < section->reloc_count;)
+ *relptr++ = tblptr++;
+
+
}
- l++;
- }
-
- cache_abfd = abfd;
- cache_section = section;
- cache_offset = offset;
- cache_i = i;
- cache_l = l;
- return true;
+ *relptr = 0;
+ return section->reloc_count;
}
#ifdef GNU960
file_ptr
-coff_sym_filepos(abfd)
-bfd *abfd;
- {
- return obj_sym_filepos(abfd);
- }
+coff_sym_filepos (abfd)
+ bfd *abfd;
+{
+ return obj_sym_filepos (abfd);
+}
#endif
+#ifndef coff_reloc16_estimate
+#define coff_reloc16_estimate dummy_reloc16_estimate
-static int
-DEFUN(coff_sizeof_headers,(abfd, reloc),
- bfd *abfd AND
- boolean reloc)
- {
- size_t size;
-
- if (reloc == false) {
- size = FILHSZ + AOUTSZ;
- }
- else {
- size = FILHSZ;
- }
-
- size += abfd->section_count * SCNHSZ;
- return size;
- }
+static int
+dummy_reloc16_estimate (abfd, input_section, reloc, shrink, link_info)
+ bfd *abfd;
+ asection *input_section;
+ arelent *reloc;
+ unsigned int shrink;
+ struct bfd_link_info *link_info;
+{
+ abort ();
+}
+#endif
+
+#ifndef coff_reloc16_extra_cases
+#define coff_reloc16_extra_cases dummy_reloc16_extra_cases
+/* This works even if abort is not declared in any header file. */
+static void
+dummy_reloc16_extra_cases (abfd, link_info, link_order, reloc, data, src_ptr,
+ dst_ptr)
+ bfd *abfd;
+ struct bfd_link_info *link_info;
+ struct bfd_link_order *link_order;
+ arelent *reloc;
+ bfd_byte *data;
+ unsigned int *src_ptr;
+ unsigned int *dst_ptr;
+{
+ fprintf (stderr, "%s\n", reloc->howto->name);
+ abort ();
+}
+#endif
+
+static CONST bfd_coff_backend_data bfd_coff_std_swap_table =
+{
+ coff_swap_aux_in, coff_swap_sym_in, coff_swap_lineno_in,
+ coff_swap_aux_out, coff_swap_sym_out,
+ coff_swap_lineno_out, coff_swap_reloc_out,
+ coff_swap_filehdr_out, coff_swap_aouthdr_out,
+ coff_swap_scnhdr_out,
+ FILHSZ, AOUTSZ, SCNHSZ, SYMESZ, AUXESZ, LINESZ,
+#ifdef COFF_LONG_FILENAMES
+ true,
+#else
+ false,
+#endif
+ coff_swap_filehdr_in, coff_swap_aouthdr_in, coff_swap_scnhdr_in,
+ coff_bad_format_hook, coff_set_arch_mach_hook, coff_mkobject_hook,
+ styp_to_sec_flags, coff_make_section_hook, coff_set_alignment_hook,
+ coff_slurp_symbol_table, symname_in_debug_hook,
+ coff_reloc16_extra_cases, coff_reloc16_estimate
+};
+
+#define coff_close_and_cleanup _bfd_generic_close_and_cleanup
+#define coff_bfd_free_cached_info _bfd_generic_bfd_free_cached_info
+#define coff_get_section_contents _bfd_generic_get_section_contents
+
+#define coff_bfd_copy_private_section_data \
+ _bfd_generic_bfd_copy_private_section_data
+#define coff_bfd_copy_private_bfd_data _bfd_generic_bfd_copy_private_bfd_data
+
+#ifndef coff_bfd_is_local_label
+#define coff_bfd_is_local_label bfd_generic_is_local_label
+#endif
+
+/* The reloc lookup routine must be supplied by each individual COFF
+ backend. */
+#ifndef coff_bfd_reloc_type_lookup
+#define coff_bfd_reloc_type_lookup _bfd_norelocs_bfd_reloc_type_lookup
+#endif
-#define coff_core_file_failing_command _bfd_dummy_core_file_failing_command
-#define coff_core_file_failing_signal _bfd_dummy_core_file_failing_signal
-#define coff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p
-#define coff_slurp_armap bfd_slurp_coff_armap
-#define coff_slurp_extended_name_table _bfd_slurp_extended_name_table
-#define coff_truncate_arname bfd_dont_truncate_arname
-#define coff_openr_next_archived_file bfd_generic_openr_next_archived_file
-#define coff_generic_stat_arch_elt bfd_generic_stat_arch_elt
-#define coff_get_section_contents bfd_generic_get_section_contents
-#define coff_close_and_cleanup bfd_generic_close_and_cleanup
+#define coff_bfd_get_relocated_section_contents \
+ bfd_generic_get_relocated_section_contents
+#define coff_bfd_relax_section bfd_generic_relax_section
+#define coff_bfd_link_hash_table_create _bfd_generic_link_hash_table_create
+#define coff_bfd_link_add_symbols _bfd_generic_link_add_symbols
+#define coff_bfd_final_link _bfd_generic_final_link
projects / deliverable / binutils-gdb.git / blobdiff