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- /* Support for the generic parts of most COFF variants, for BFD.
- Copyright (C) 1990-1991 Free Software Foundation, Inc.
- Written by Cygnus Support.
-
- This file is part of BFD, the Binary File Descriptor library.
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
-
- /*
- Most of this hacked by Steve Chamberlain,
- sac@cygnus.com
- */
- /*
-
- SECTION
- coff backends
-
- BFD supports a number of different flavours of coff format.
- The major difference between formats are the sizes and
- alignments of fields in structures on disk, and the occasional
- extra field.
-
- Coff in all its varieties is implimented with a few common
- files and a number of implementation specific files. For
- example, The 88k bcs coff format is implemented in the file
- @code{coff-m88k.c}. This file @code{#include}s
- @code{coff-m88k.h} which defines the external structure of the
- coff format for the 88k, and @code{internalcoff.h} which
- defines the internal structure. @code{coff-m88k.c} also
- defines pthe relocations used by the 88k format
- @xref{Relocations}. Then the major portion of coff code is
- included (@code{coffcode.h}) which defines the methods used to
- act upon the types defined in @code{coff-m88k.h} and
- @code{internalcoff.h}.
-
-
- The Intel i960 processor version of coff is implemented in
- @code{coff-i960.c}. This file has the same structure as
- @code{coff-m88k.c}, except that it includes @code{coff-i960.h}
- rather than @code{coff-m88k.h}.
-
- SUBSECTION
- Porting To A New Version of Coff
-
- The recommended method is to select from the existing
- implimentations the version of coff which is most like the one
- you want to use, for our purposes, we'll say that i386 coff is
- the one you select, and that your coff flavour is called foo.
- Copy the @code{i386coff.c} to @code{foocoff.c}, copy
- @code{../include/i386coff.h} to @code{../include/foocoff.h}
- and add the lines to @code{targets.c} and @code{Makefile.in}
- so that your new back end is used. Alter the shapes of the
- structures in @code{../include/foocoff.h} so that they match
- what you need. You will probably also have to add
- @code{#ifdef}s to the code in @code{internalcoff.h} and
- @code{coffcode.h} if your version of coff is too wild.
-
- You can verify that your new BFD backend works quite simply by
- building @code{objdump} from the @code{binutils} directory,
- and making sure that its version of what's going on at your
- host systems 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
- Bit Twiddling
-
- Each flavour of coff supported in BFD has its own header file
- descibing the external layout of the structures. There is also
- an internal description of the coff layout (in
- @code{internalcoff.h}) file (@code{}). 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
- @code{coffcode.h}. Eg 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 for 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. This 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 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{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 changes 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 in 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 was born, 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. Note that 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 to an index into the symbol table of the symbol
- being referenced.
-
- 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 tabel to the file.
-
- */
-
- /*
- INTERNAL_DEFINITION
- coff_symbol_type
-
- DESCRIPTION
- The hidden information for an asymbol is described in a
- coff_ptr_struct, which is typedefed to 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 tag field of this symbol be renumbered.
- . Created by coff_pointerize_aux. *}
- .char fix_tag;
- .
- . {* Should the endidx field of this symbol be renumbered.
- . Created by coff_pointerize_aux. *}
- .char fix_end;
- .
- . {* 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;
-
-
- */
-
- #include "seclet.h"
- extern bfd_error_vector_type bfd_error_vector;
-
-
-
-
- #define PUTWORD bfd_h_put_32
- #define PUTHALF bfd_h_put_16
- #define PUTBYTE bfd_h_put_8
-
- #ifndef GET_FCN_LNNOPTR
- #define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
- #endif
-
- #ifndef GET_FCN_ENDNDX
- #define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
- #endif
-
- #ifndef PUT_FCN_LNNOPTR
- #define PUT_FCN_LNNOPTR(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
- #endif
- #ifndef PUT_FCN_ENDNDX
- #define PUT_FCN_ENDNDX(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
- #endif
- #ifndef GET_LNSZ_LNNO
- #define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
- #endif
- #ifndef GET_LNSZ_SIZE
- #define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
- #endif
- #ifndef PUT_LNSZ_LNNO
- #define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_lnno)
- #endif
- #ifndef PUT_LNSZ_SIZE
- #define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size)
- #endif
- #ifndef GET_SCN_SCNLEN
- #define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen)
- #endif
- #ifndef GET_SCN_NRELOC
- #define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc)
- #endif
- #ifndef GET_SCN_NLINNO
- #define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno)
- #endif
- #ifndef PUT_SCN_SCNLEN
- #define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen)
- #endif
- #ifndef PUT_SCN_NRELOC
- #define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc)
- #endif
- #ifndef PUT_SCN_NLINNO
- #define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_16(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno)
- #endif
- #ifndef GET_LINENO_LNNO
- #define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno));
- #endif
- #ifndef PUT_LINENO_LNNO
- #define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno));
- #endif
-
-
- /* void warning(); */
-
- /*
- * 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
- DEFUN(sec_to_styp_flags, (sec_name, sec_flags),
- CONST char * sec_name AND
- flagword sec_flags)
- {
- long styp_flags = 0;
-
- if (!strcmp(sec_name, _TEXT)) {
- return((long)STYP_TEXT);
- } else if (!strcmp(sec_name, _DATA)) {
- return((long)STYP_DATA);
- } else if (!strcmp(sec_name, _BSS)) {
- return((long)STYP_BSS);
- #ifdef _COMMENT
- } else if (!strcmp(sec_name, _COMMENT)) {
- return((long)STYP_INFO);
- #endif /* _COMMENT */
- }
-
- /* Try and figure out what it should be */
- if (sec_flags & SEC_CODE) styp_flags = STYP_TEXT;
- if (sec_flags & SEC_DATA) styp_flags = STYP_DATA;
- 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 if (sec_flags & SEC_LOAD) styp_flags = STYP_TEXT;
-
- if (styp_flags == 0) styp_flags = STYP_BSS;
-
- 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
- DEFUN(styp_to_sec_flags, (styp_flags),
- long styp_flags)
- {
- flagword sec_flags=0;
-
- if ((styp_flags & STYP_TEXT) || (styp_flags & STYP_DATA))
- sec_flags = (SEC_LOAD | SEC_ALLOC);
- else if (styp_flags & STYP_BSS)
- sec_flags = SEC_ALLOC;
-
- #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 */
-
- return(sec_flags);
- }
-
- #define get_index(symbol) ((int) (symbol)->value)
- #define set_index(symbol, idx) ((symbol)->value = (idx))
-
- /* **********************************************************************
- Here are all the routines for swapping the structures seen in the
- outside world into the internal forms.
- */
-
-
- 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, (bfd_byte *)reloc_src->r_vaddr);
- reloc_dst->r_symndx = bfd_h_get_32(abfd, (bfd_byte *) reloc_src->r_symndx);
-
- #ifdef RS6000COFF_C
- reloc_dst->r_type = bfd_h_get_8(abfd, reloc_src->r_type);
- reloc_dst->r_size = bfd_h_get_8(abfd, reloc_src->r_size);
- #else
- reloc_dst->r_type = bfd_h_get_16(abfd, (bfd_byte *) reloc_src->r_type);
- #endif
-
- #ifdef SWAP_IN_RELOC_OFFSET
- reloc_dst->r_offset = SWAP_IN_RELOC_OFFSET(abfd,
- (bfd_byte *) reloc_src->r_offset);
- #endif
- }
-
-
- static unsigned int
- DEFUN(coff_swap_reloc_out,(abfd, src, dst),
- bfd *abfd AND
- PTR src AND
- PTR dst)
- {
- struct internal_reloc *reloc_src = (struct internal_reloc *)src;
- struct external_reloc *reloc_dst = (struct external_reloc *)dst;
- bfd_h_put_32(abfd, reloc_src->r_vaddr, (bfd_byte *) reloc_dst->r_vaddr);
- bfd_h_put_32(abfd, reloc_src->r_symndx, (bfd_byte *) reloc_dst->r_symndx);
- bfd_h_put_16(abfd, reloc_src->r_type, (bfd_byte *)
- reloc_dst->r_type);
-
- #ifdef SWAP_OUT_RELOC_OFFSET
- SWAP_OUT_RELOC_OFFSET(abfd,
- reloc_src->r_offset,
- (bfd_byte *) reloc_dst->r_offset);
- #endif
- #ifdef SWAP_OUT_RELOC_EXTRA
- SWAP_OUT_RELOC_EXTRA(abfd,reloc_src, reloc_dst);
- #endif
-
- return sizeof(struct external_reloc);
- }
-
- 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, (bfd_byte *) filehdr_src->f_magic);
- filehdr_dst->f_nscns = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_nscns);
- filehdr_dst->f_timdat = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_timdat);
- filehdr_dst->f_symptr = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_symptr);
- filehdr_dst->f_nsyms = bfd_h_get_32(abfd, (bfd_byte *)filehdr_src-> f_nsyms);
- filehdr_dst->f_opthdr = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_opthdr);
- filehdr_dst->f_flags = bfd_h_get_16(abfd, (bfd_byte *)filehdr_src-> f_flags);
- }
-
- static unsigned int
- DEFUN(coff_swap_filehdr_out,(abfd, in, out),
- bfd *abfd AND
- PTR in AND
- PTR out)
- {
- struct internal_filehdr *filehdr_in = (struct internal_filehdr *)in;
- FILHDR *filehdr_out = (FILHDR *)out;
- bfd_h_put_16(abfd, filehdr_in->f_magic, (bfd_byte *) filehdr_out->f_magic);
- bfd_h_put_16(abfd, filehdr_in->f_nscns, (bfd_byte *) filehdr_out->f_nscns);
- bfd_h_put_32(abfd, filehdr_in->f_timdat, (bfd_byte *) filehdr_out->f_timdat);
- bfd_h_put_32(abfd, filehdr_in->f_symptr, (bfd_byte *) filehdr_out->f_symptr);
- bfd_h_put_32(abfd, filehdr_in->f_nsyms, (bfd_byte *) filehdr_out->f_nsyms);
- bfd_h_put_16(abfd, filehdr_in->f_opthdr, (bfd_byte *) filehdr_out->f_opthdr);
- bfd_h_put_16(abfd, filehdr_in->f_flags, (bfd_byte *) filehdr_out->f_flags);
- return sizeof(FILHDR);
- }
-
-
- #ifndef NO_COFF_SYMBOLS
-
- static void
- DEFUN(coff_swap_sym_in,(abfd, ext1, in1),
- bfd *abfd AND
- PTR ext1 AND
- PTR in1)
- {
- SYMENT *ext = (SYMENT *)ext1;
- struct internal_syment *in = (struct internal_syment *)in1;
-
- 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, (bfd_byte *) ext->e.e.e_offset);
- }
- else {
- #if SYMNMLEN != E_SYMNMLEN
- -> Error, we need to cope with truncating or extending SYMNMLEN!;
- #else
- memcpy(in->_n._n_name, ext->e.e_name, SYMNMLEN);
- #endif
- }
- in->n_value = bfd_h_get_32(abfd, (bfd_byte *) ext->e_value);
- in->n_scnum = bfd_h_get_16(abfd, (bfd_byte *) ext->e_scnum);
- if (sizeof(ext->e_type) == 2){
- in->n_type = bfd_h_get_16(abfd, (bfd_byte *) ext->e_type);
- }
- else {
- in->n_type = bfd_h_get_32(abfd, (bfd_byte *) 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);
- }
-
- static unsigned int
- DEFUN(coff_swap_sym_out,(abfd, inp, extp),
- bfd *abfd AND
- PTR inp AND
- PTR extp)
- {
- struct internal_syment *in = (struct internal_syment *)inp;
- SYMENT *ext =(SYMENT *)extp;
- if(in->_n._n_name[0] == 0) {
- bfd_h_put_32(abfd, 0, (bfd_byte *) ext->e.e.e_zeroes);
- bfd_h_put_32(abfd, in->_n._n_n._n_offset, (bfd_byte *) ext->e.e.e_offset);
- }
- else {
- #if SYMNMLEN != E_SYMNMLEN
- -> Error, we need to cope with truncating or extending SYMNMLEN!;
- #else
- memcpy(ext->e.e_name, in->_n._n_name, SYMNMLEN);
- #endif
- }
- bfd_h_put_32(abfd, in->n_value , (bfd_byte *) ext->e_value);
- bfd_h_put_16(abfd, in->n_scnum , (bfd_byte *) ext->e_scnum);
- if (sizeof(ext->e_type) == 2)
- {
- bfd_h_put_16(abfd, in->n_type , (bfd_byte *) ext->e_type);
- }
- else
- {
- bfd_h_put_32(abfd, in->n_type , (bfd_byte *) 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);
- return sizeof(SYMENT);
- }
-
- static void
- DEFUN(coff_swap_aux_in,(abfd, ext1, type, class, in1),
- bfd *abfd AND
- PTR ext1 AND
- int type AND
- int class AND
- PTR in1)
- {
- AUXENT *ext = (AUXENT *)ext1;
- union internal_auxent *in = (union internal_auxent *)in1;
-
- 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, (bfd_byte *) ext->x_file.x_n.x_offset);
- } else {
- #if FILNMLEN != E_FILNMLEN
- -> Error, we need to cope with truncating or extending FILNMLEN!;
- #else
- memcpy (in->x_file.x_fname, ext->x_file.x_fname, FILNMLEN);
- #endif
- }
- break;
-
- /* RS/6000 "csect" auxents */
- #ifdef RS6000COFF_C
- case C_EXT:
- case C_HIDEXT:
- in->x_csect.x_scnlen = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_scnlen);
- in->x_csect.x_parmhash = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_parmhash);
- in->x_csect.x_snhash = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snhash);
- /* We don't have to hack bitfields in x_smtyp because it's defined by
- shifts-and-ands, which are equivalent on all byte orders. */
- in->x_csect.x_smtyp = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smtyp);
- in->x_csect.x_smclas = bfd_h_get_8 (abfd, (bfd_byte *) ext->x_csect.x_smclas);
- in->x_csect.x_stab = bfd_h_get_32 (abfd, (bfd_byte *) ext->x_csect.x_stab);
- in->x_csect.x_snstab = bfd_h_get_16 (abfd, (bfd_byte *) ext->x_csect.x_snstab);
- break;
- #endif
-
- case C_STAT:
- #ifdef C_LEAFSTAT
- case C_LEAFSTAT:
- #endif
- case C_HIDDEN:
- if (type == T_NULL) {
- in->x_scn.x_scnlen = GET_SCN_SCNLEN(abfd, ext);
- in->x_scn.x_nreloc = GET_SCN_NRELOC(abfd, ext);
- in->x_scn.x_nlinno = GET_SCN_NLINNO(abfd, ext);
- break;
- }
- default:
- in->x_sym.x_tagndx.l = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_tagndx);
- #ifndef NO_TVNDX
- in->x_sym.x_tvndx = bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_tvndx);
- #endif
-
- if (ISARY(type) || class == C_BLOCK) {
- #if DIMNUM != E_DIMNUM
- -> Error, we need to cope with truncating or extending DIMNUM!;
- #else
- in->x_sym.x_fcnary.x_ary.x_dimen[0] = bfd_h_get_16(abfd, (bfd_byte *) 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, (bfd_byte *) 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, (bfd_byte *) 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, (bfd_byte *) ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
- #endif
- }
- in->x_sym.x_fcnary.x_fcn.x_lnnoptr = GET_FCN_LNNOPTR(abfd, ext);
- in->x_sym.x_fcnary.x_fcn.x_endndx.l = GET_FCN_ENDNDX(abfd, ext);
-
- if (ISFCN(type)) {
- in->x_sym.x_misc.x_fsize = bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_misc.x_fsize);
- }
- else {
- in->x_sym.x_misc.x_lnsz.x_lnno = GET_LNSZ_LNNO(abfd, ext);
- in->x_sym.x_misc.x_lnsz.x_size = GET_LNSZ_SIZE(abfd, ext);
- }
- }
- }
-
- static unsigned int
- DEFUN(coff_swap_aux_out,(abfd, inp, type, class, extp),
- bfd *abfd AND
- PTR inp AND
- int type AND
- int class AND
- PTR extp)
- {
- union internal_auxent *in = (union internal_auxent *)inp;
- AUXENT *ext = (AUXENT *)extp;
- switch (class) {
- case C_FILE:
- if (in->x_file.x_fname[0] == 0) {
- PUTWORD(abfd, 0, (bfd_byte *) ext->x_file.x_n.x_zeroes);
- PUTWORD(abfd,
- in->x_file.x_n.x_offset,
- (bfd_byte *) ext->x_file.x_n.x_offset);
- }
- else {
- #if FILNMLEN != E_FILNMLEN
- -> Error, we need to cope with truncating or extending FILNMLEN!;
- #else
- memcpy (ext->x_file.x_fname, in->x_file.x_fname, FILNMLEN);
- #endif
- }
- break;
-
- #ifdef RS6000COFF_C
- /* RS/6000 "csect" auxents */
- case C_EXT:
- case C_HIDEXT:
- PUTWORD (abfd, in->x_csect.x_scnlen, ext->x_csect.x_scnlen);
- PUTWORD (abfd, in->x_csect.x_parmhash, ext->x_csect.x_parmhash);
- PUTHALF (abfd, in->x_csect.x_snhash, ext->x_csect.x_snhash);
- /* We don't have to hack bitfields in x_smtyp because it's defined by
- shifts-and-ands, which are equivalent on all byte orders. */
- PUTBYTE (abfd, in->x_csect.x_smtyp, ext->x_csect.x_smtyp);
- PUTBYTE (abfd, in->x_csect.x_smclas, ext->x_csect.x_smclas);
- PUTWORD (abfd, in->x_csect.x_stab, ext->x_csect.x_stab);
- PUTHALF (abfd, in->x_csect.x_snstab, ext->x_csect.x_snstab);
- break;
- #endif
-
- case C_STAT:
- #ifdef C_LEAFSTAT
- case C_LEAFSTAT:
- #endif
- case C_HIDDEN:
- if (type == T_NULL) {
- PUT_SCN_SCNLEN(abfd, in->x_scn.x_scnlen, ext);
- PUT_SCN_NRELOC(abfd, in->x_scn.x_nreloc, ext);
- PUT_SCN_NLINNO(abfd, in->x_scn.x_nlinno, ext);
- break;
- }
- default:
- PUTWORD(abfd, in->x_sym.x_tagndx.l, (bfd_byte *) ext->x_sym.x_tagndx);
- #ifndef NO_TVNDX
- bfd_h_put_16(abfd, in->x_sym.x_tvndx , (bfd_byte *) ext->x_sym.x_tvndx);
- #endif
-
- if (ISFCN(type)) {
- PUTWORD(abfd, in->x_sym.x_misc.x_fsize, (bfd_byte *) ext->x_sym.x_misc.x_fsize);
- PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext);
- PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext);
- }
- else {
-
- if (ISARY(type) || class == C_BLOCK) {
- #if DIMNUM != E_DIMNUM
- -> Error, we need to cope with truncating or extending DIMNUM!;
- #else
- bfd_h_put_16(abfd, in->x_sym.x_fcnary.x_ary.x_dimen[0], (bfd_byte *)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], (bfd_byte *)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], (bfd_byte *)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], (bfd_byte *)ext->x_sym.x_fcnary.x_ary.x_dimen[3]);
- #endif
- }
- PUT_LNSZ_LNNO(abfd, in->x_sym.x_misc.x_lnsz.x_lnno, ext);
- PUT_LNSZ_SIZE(abfd, in->x_sym.x_misc.x_lnsz.x_size, ext);
-
- PUT_FCN_LNNOPTR(abfd, in->x_sym.x_fcnary.x_fcn.x_lnnoptr, ext);
- PUT_FCN_ENDNDX(abfd, in->x_sym.x_fcnary.x_fcn.x_endndx.l, ext);
-
-
- }
- }
- return sizeof(AUXENT);
- }
-
- #endif /* NO_COFF_SYMBOLS */
-
- #ifndef NO_COFF_LINENOS
-
- static void
- DEFUN(coff_swap_lineno_in,(abfd, ext1, in1),
- bfd *abfd AND
- PTR ext1 AND
- PTR in1)
- {
- LINENO *ext = (LINENO *)ext1;
- struct internal_lineno *in = (struct internal_lineno *)in1;
-
- in->l_addr.l_symndx = bfd_h_get_32(abfd, (bfd_byte *) ext->l_addr.l_symndx);
- in->l_lnno = GET_LINENO_LNNO(abfd, ext);
- }
-
- static unsigned int
- DEFUN(coff_swap_lineno_out,(abfd, inp, outp),
- bfd *abfd AND
- PTR inp AND
- PTR outp)
- {
- struct internal_lineno *in = (struct internal_lineno *)inp;
- struct external_lineno *ext = (struct external_lineno *)outp;
- PUTWORD(abfd, in->l_addr.l_symndx, (bfd_byte *)
- ext->l_addr.l_symndx);
-
- PUT_LINENO_LNNO (abfd, in->l_lnno, ext);
- return sizeof(struct external_lineno);
- }
-
- #endif /* NO_COFF_LINENOS */
-
-
- static void
- DEFUN(bfd_swap_aouthdr_in,(abfd, aouthdr_ext1, aouthdr_int1),
- bfd *abfd AND
- PTR aouthdr_ext1 AND
- PTR aouthdr_int1)
- {
- AOUTHDR *aouthdr_ext = (AOUTHDR *) aouthdr_ext1;
- struct internal_aouthdr *aouthdr_int = (struct internal_aouthdr *)aouthdr_int1;
-
- aouthdr_int->magic = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->magic);
- aouthdr_int->vstamp = bfd_h_get_16(abfd, (bfd_byte *) aouthdr_ext->vstamp);
- aouthdr_int->tsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tsize);
- aouthdr_int->dsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->dsize);
- aouthdr_int->bsize = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->bsize);
- aouthdr_int->entry = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->entry);
- aouthdr_int->text_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->text_start);
- aouthdr_int->data_start = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->data_start);
- #ifdef I960
- aouthdr_int->tagentries = bfd_h_get_32(abfd, (bfd_byte *) aouthdr_ext->tagentries);
- #endif
-
- #ifdef RS6000COFF_C
- aouthdr_int->o_toc = bfd_h_get_32(abfd, aouthdr_ext->o_toc);
- aouthdr_int->o_snentry = bfd_h_get_16(abfd, aouthdr_ext->o_snentry);
- aouthdr_int->o_sntext = bfd_h_get_16(abfd, aouthdr_ext->o_sntext);
- aouthdr_int->o_sndata = bfd_h_get_16(abfd, aouthdr_ext->o_sndata);
- aouthdr_int->o_sntoc = bfd_h_get_16(abfd, aouthdr_ext->o_sntoc);
- aouthdr_int->o_snloader = bfd_h_get_16(abfd, aouthdr_ext->o_snloader);
- aouthdr_int->o_snbss = bfd_h_get_16(abfd, aouthdr_ext->o_snbss);
- aouthdr_int->o_algntext = bfd_h_get_16(abfd, aouthdr_ext->o_algntext);
- aouthdr_int->o_algndata = bfd_h_get_16(abfd, aouthdr_ext->o_algndata);
- aouthdr_int->o_modtype = bfd_h_get_16(abfd, aouthdr_ext->o_modtype);
- aouthdr_int->o_maxstack = bfd_h_get_32(abfd, aouthdr_ext->o_maxstack);
- #endif
- }
-
- static unsigned int
- DEFUN(coff_swap_aouthdr_out,(abfd, in, out),
- bfd *abfd AND
- PTR in AND
- PTR out)
- {
- struct internal_aouthdr *aouthdr_in = (struct internal_aouthdr *)in;
- AOUTHDR *aouthdr_out = (AOUTHDR *)out;
- bfd_h_put_16(abfd, aouthdr_in->magic, (bfd_byte *) aouthdr_out->magic);
- bfd_h_put_16(abfd, aouthdr_in->vstamp, (bfd_byte *) aouthdr_out->vstamp);
- bfd_h_put_32(abfd, aouthdr_in->tsize, (bfd_byte *) aouthdr_out->tsize);
- bfd_h_put_32(abfd, aouthdr_in->dsize, (bfd_byte *) aouthdr_out->dsize);
- bfd_h_put_32(abfd, aouthdr_in->bsize, (bfd_byte *) aouthdr_out->bsize);
- bfd_h_put_32(abfd, aouthdr_in->entry, (bfd_byte *) aouthdr_out->entry);
- bfd_h_put_32(abfd, aouthdr_in->text_start,
- (bfd_byte *) aouthdr_out->text_start);
- bfd_h_put_32(abfd, aouthdr_in->data_start, (bfd_byte *) aouthdr_out->data_start);
- #ifdef I960
- bfd_h_put_32(abfd, aouthdr_in->tagentries, (bfd_byte *) aouthdr_out->tagentries);
- #endif
- return sizeof(AOUTHDR);
- }
-
- static 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, (bfd_byte *) scnhdr_ext->s_vaddr);
- scnhdr_int->s_paddr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_paddr);
- scnhdr_int->s_size = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_size);
-
- scnhdr_int->s_scnptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_scnptr);
- scnhdr_int->s_relptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_relptr);
- scnhdr_int->s_lnnoptr = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_lnnoptr);
- scnhdr_int->s_flags = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_flags);
- #if defined(M88)
- scnhdr_int->s_nreloc = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nreloc);
- scnhdr_int->s_nlnno = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_nlnno);
- #else
- scnhdr_int->s_nreloc = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nreloc);
- scnhdr_int->s_nlnno = bfd_h_get_16(abfd, (bfd_byte *) scnhdr_ext->s_nlnno);
- #endif
- #ifdef I960
- scnhdr_int->s_align = bfd_h_get_32(abfd, (bfd_byte *) scnhdr_ext->s_align);
- #endif
- }
-
- static unsigned int
- DEFUN(coff_swap_scnhdr_out,(abfd, in, out),
- bfd *abfd AND
- PTR in AND
- PTR out)
- {
- struct internal_scnhdr *scnhdr_int = (struct internal_scnhdr *)in;
- SCNHDR *scnhdr_ext = (SCNHDR *)out;
- memcpy(scnhdr_ext->s_name, scnhdr_int->s_name, sizeof(scnhdr_int->s_name));
- PUTWORD(abfd, scnhdr_int->s_vaddr, (bfd_byte *) scnhdr_ext->s_vaddr);
- PUTWORD(abfd, scnhdr_int->s_paddr, (bfd_byte *) scnhdr_ext->s_paddr);
- PUTWORD(abfd, scnhdr_int->s_size, (bfd_byte *) scnhdr_ext->s_size);
- PUTWORD(abfd, scnhdr_int->s_scnptr, (bfd_byte *) scnhdr_ext->s_scnptr);
- PUTWORD(abfd, scnhdr_int->s_relptr, (bfd_byte *) scnhdr_ext->s_relptr);
- PUTWORD(abfd, scnhdr_int->s_lnnoptr, (bfd_byte *) scnhdr_ext->s_lnnoptr);
- PUTWORD(abfd, scnhdr_int->s_flags, (bfd_byte *) scnhdr_ext->s_flags);
- #if defined(M88)
- PUTWORD(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno);
- PUTWORD(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc);
- #else
- PUTHALF(abfd, scnhdr_int->s_nlnno, (bfd_byte *) scnhdr_ext->s_nlnno);
- PUTHALF(abfd, scnhdr_int->s_nreloc, (bfd_byte *) scnhdr_ext->s_nreloc);
- #endif
-
- #if defined(I960)
- PUTWORD(abfd, scnhdr_int->s_align, (bfd_byte *) scnhdr_ext->s_align);
- #endif
- return sizeof(SCNHDR);
- }
-
-
- /*
- initialize a section structure with information peculiar to this
- particular implementation of coff
- */
-
- static boolean
- DEFUN(coff_new_section_hook,(abfd_ignore, section),
- bfd *abfd_ignore AND
- asection *section)
- {
- section->alignment_power = abfd_ignore->xvec->align_power_min;
- return true;
- }
-
- static asection bfd_debug_section =
- { "*DEBUG*" };
-
-
-
- static void
- DEFUN(make_abs_section,(abfd),
- bfd *abfd)
- {
-
-
-
- }
-
- /* 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, target_index),
- bfd *abfd AND
- struct internal_scnhdr *hdr AND
- unsigned int target_index)
- {
- asection *return_section;
- char *name;
-
- /* Assorted wastage to null-terminate the name, thanks AT&T! */
- 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;
-
- return_section = bfd_make_section(abfd, name);
- if (return_section == NULL)
- return false;
-
- /* s_paddr is presumed to be = to s_vaddr */
-
- return_section->vma = hdr->s_vaddr;
- return_section->_raw_size = hdr->s_size;
- return_section->filepos = hdr->s_scnptr;
- return_section->rel_filepos = hdr->s_relptr;
- return_section->reloc_count = hdr->s_nreloc;
- #ifdef I960
-
- /* FIXME, use a temp var rather than alignment_power */
- return_section->alignment_power = hdr->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
- return_section->line_filepos = hdr->s_lnnoptr;
- /*
- return_section->linesize = hdr->s_nlnno * sizeof (struct lineno);
- */
-
- return_section->lineno_count = hdr->s_nlnno;
- return_section->userdata = NULL;
- return_section->next = (asection *) NULL;
- return_section->flags = styp_to_sec_flags(hdr->s_flags);
-
- return_section->target_index = target_index;
-
- if (hdr->s_nreloc != 0)
- return_section->flags |= SEC_RELOC;
- /* FIXME: should this check 'hdr->s_size > 0' */
- if (hdr->s_scnptr != 0)
- return_section->flags |= SEC_HAS_CONTENTS;
- return true;
- }
- static boolean
- DEFUN(coff_mkobject,(abfd),
- bfd *abfd)
- {
- abfd->tdata.coff_obj_data = (struct coff_tdata *)bfd_zalloc (abfd,sizeof(coff_data_type));
- if (abfd->tdata.coff_obj_data == 0){
- bfd_error = no_memory;
- return false;
- }
- coff_data(abfd)->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)
- {
- coff_data_type *coff;
- enum bfd_architecture arch;
- long machine;
- 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;
- 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, i+1);
- }
- }
-
- /* make_abs_section(abfd);*/
-
- /* Determine the machine architecture and type. */
- machine = 0;
- switch (internal_f->f_magic) {
- #ifdef I386MAGIC
- case I386MAGIC:
- arch = bfd_arch_i386;
- machine = 0;
- break;
- #endif
-
- #ifdef A29K_MAGIC_BIG
- case A29K_MAGIC_BIG:
- case A29K_MAGIC_LITTLE:
- arch = bfd_arch_a29k;
- machine = 0;
- break;
- #endif
-
- #ifdef MIPS
- case MIPS_MAGIC_1:
- case MIPS_MAGIC_2:
- case MIPS_MAGIC_3:
- arch = bfd_arch_mips;
- machine = 0;
- break;
- #endif
-
- #ifdef MC68MAGIC
- case MC68MAGIC:
- case M68MAGIC:
- arch = bfd_arch_m68k;
- machine = 68020;
- break;
- #endif
- #ifdef MC88MAGIC
- case MC88MAGIC:
- case MC88DMAGIC:
- case MC88OMAGIC:
- arch = bfd_arch_m88k;
- machine = 88100;
- break;
- #endif
- #ifdef I960
- #ifdef I960ROMAGIC
- case I960ROMAGIC:
- case I960RWMAGIC:
- arch = bfd_arch_i960;
- switch (F_I960TYPE & internal_f->f_flags)
- {
- default:
- case F_I960CORE:
- machine = bfd_mach_i960_core;
- break;
- case F_I960KB:
- machine = bfd_mach_i960_kb_sb;
- break;
- case F_I960MC:
- machine = bfd_mach_i960_mc;
- break;
- case F_I960XA:
- machine = bfd_mach_i960_xa;
- break;
- case F_I960CA:
- machine = bfd_mach_i960_ca;
- break;
- case F_I960KA:
- machine = bfd_mach_i960_ka_sa;
- break;
- }
- break;
- #endif
- #endif
-
- #ifdef U802ROMAGIC
- case U802ROMAGIC:
- case U802WRMAGIC:
- case U802TOCMAGIC:
- arch = bfd_arch_rs6000;
- machine = 6000;
- break;
- #endif
-
- #ifdef H8300MAGIC
- case H8300MAGIC:
- arch = bfd_arch_h8300;
- machine = 0;
- break;
- #endif
-
- default: /* Unreadable input file type */
- arch = bfd_arch_obscure;
- break;
- }
-
- bfd_default_set_arch_mach(abfd, arch, machine);
- 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;
-
- /* These members communicate important constants about the symbol table
- to GDB's symbol-reading code. These `constants' unfortunately vary
- from coff implementation to implementation... */
- #ifndef NO_COFF_SYMBOLS
- 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;
- #endif
-
- 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, (char *)&opthdr, (char *)&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
- */
-
- #if defined(M88) || defined(I960)
- 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);
- }
-
-
-
- #ifndef NO_COFF_LINENOS
-
- 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) {
- 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++;
- }
- }
- }
- }
- }
-
- #endif /* NO_COFF_LINENOS */
-
- #ifndef NO_COFF_SYMBOLS
-
- /*
- 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,(ignore_abfd, symbol),
- bfd *ignore_abfd AND
- asymbol *symbol)
- {
- if (symbol->the_bfd->xvec->flavour != bfd_target_coff_flavour)
- return (coff_symbol_type *)NULL;
-
- if (symbol->the_bfd->tdata.coff_obj_data == (coff_data_type*)NULL)
- return (coff_symbol_type *)NULL;
-
- return (coff_symbol_type *) symbol;
- }
-
-
-
- static void
- DEFUN(fixup_symbol_value,(coff_symbol_ptr, syment),
- coff_symbol_type *coff_symbol_ptr AND
- struct internal_syment *syment)
- {
-
- /* Normalize the symbol flags */
- if (coff_symbol_ptr->symbol.section == &bfd_com_section) {
- /* 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.section == & bfd_und_section) {
- syment->n_scnum = N_UNDEF;
- syment->n_value = 0;
- }
- else {
- if (coff_symbol_ptr->symbol.section) {
- syment->n_scnum =
- coff_symbol_ptr->symbol.section->output_section->target_index;
-
- syment->n_value =
- coff_symbol_ptr->symbol.value +
- coff_symbol_ptr->symbol.section->output_offset +
- coff_symbol_ptr->symbol.section->output_section->vma;
- }
- else {
- BFD_ASSERT(0);
- /* This can happen, but I don't know why yet (steve@cygnus.com) */
- syment->n_scnum = N_ABS;
- syment->n_value = coff_symbol_ptr->symbol.value;
- }
- }
- }
-
- /* run through all the symbols in the symbol table and work out what
- their indexes into the symbol table will be when output
-
- Coff requires that each C_FILE symbol points to the next one in the
- chain, and that the last one points to the first external symbol. We
- do that here too.
-
- */
- static void
- DEFUN(coff_renumber_symbols,(bfd_ptr),
- bfd *bfd_ptr)
- {
- unsigned int symbol_count = bfd_get_symcount(bfd_ptr);
- asymbol **symbol_ptr_ptr = bfd_ptr->outsymbols;
- unsigned int native_index = 0;
- struct internal_syment *last_file = (struct internal_syment *)NULL;
- unsigned int symbol_index;
- 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_ptr->native) {
- combined_entry_type *s = coff_symbol_ptr->native;
- int i;
-
- if (s->u.syment.n_sclass == C_FILE)
- {
- if (last_file != (struct internal_syment *)NULL) {
- last_file->n_value = native_index;
- }
- last_file = &(s->u.syment);
- }
- else {
-
- /* Modify the symbol values according to their section and
- type */
-
- fixup_symbol_value(coff_symbol_ptr, &(s->u.syment));
- }
- for (i = 0; i < s->u.syment.n_numaux + 1; i++) {
- s[i].offset = native_index ++;
- }
- }
- else {
- native_index++;
- }
- }
- }
-
-
- /*
- Run thorough the symbol table again, and fix it so that all pointers to
- entries are changed to the entries' index in the output symbol table.
-
- */
- 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;
- unsigned int symbol_index;
-
- 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_ptr->native) {
- int i;
- combined_entry_type *s = coff_symbol_ptr->native;
-
- for (i = 0; i < s->u.syment.n_numaux ; i++) {
- combined_entry_type *a = s + i + 1;
- if (a->fix_tag) {
- a->u.auxent.x_sym.x_tagndx.l =
- a->u.auxent.x_sym.x_tagndx.p->offset;
- a->fix_tag = 0;
- }
- if (a->fix_end) {
- a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l =
- a->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p->offset;
- a->fix_end = 0;
-
- }
-
- }
- }
- }
- }
-
- static int string_size;
- static void
- DEFUN(coff_fix_symbol_name,(ignore_abfd, symbol, native),
- bfd *ignore_abfd AND
- asymbol *symbol AND
- combined_entry_type *native)
- {
- unsigned int name_length;
- union internal_auxent *auxent;
- char * name = ( char *)(symbol->name);
-
- if (name == (char *) NULL) {
- /* coff symbols always have names, so we'll make one up */
- symbol->name = "strange";
- name = (char *)symbol->name;
- }
- name_length = strlen(name);
-
- if (native->u.syment.n_sclass == C_FILE) {
- strncpy(native->u.syment._n._n_name, ".file", SYMNMLEN);
- auxent = &(native+1)->u.auxent;
-
- #ifdef COFF_LONG_FILENAMES
- if (name_length <= FILNMLEN) {
- strncpy(auxent->x_file.x_fname, name, FILNMLEN);
- }
- else {
- auxent->x_file.x_n.x_offset = string_size + 4;
- auxent->x_file.x_n.x_zeroes = 0;
- string_size += name_length + 1;
- }
- #else
- strncpy(auxent->x_file.x_fname, name, FILNMLEN);
- if (name_length > FILNMLEN) {
- name[FILNMLEN] = '\0';
- }
- #endif
- }
- else
- { /* NOT A C_FILE SYMBOL */
- if (name_length <= SYMNMLEN) {
- /* This name will fit into the symbol neatly */
- strncpy(native->u.syment._n._n_name, symbol->name, SYMNMLEN);
- }
- else {
- native->u.syment._n._n_n._n_offset = string_size + 4;
- native->u.syment._n._n_n._n_zeroes = 0;
- string_size += name_length + 1;
- }
- }
- }
-
-
-
- static unsigned int
- DEFUN(coff_write_symbol,(abfd, symbol, native, written),
- bfd *abfd AND
- asymbol *symbol AND
- combined_entry_type *native AND
- unsigned int written)
- {
- unsigned int numaux = native->u.syment.n_numaux;
- int type = native->u.syment.n_type;
- int class = native->u.syment.n_sclass;
- SYMENT buf;
- unsigned int j;
- if (symbol->section == &bfd_abs_section)
- {
- native->u.syment.n_scnum = N_ABS;
- }
- else if (symbol->section == &bfd_debug_section)
- {
- native->u.syment.n_scnum = N_DEBUG;
- }
- else if (symbol->section == &bfd_und_section)
- {
- native->u.syment.n_scnum = N_UNDEF;
- }
- else
- {
- native->u.syment.n_scnum =
- symbol->section->output_section->target_index;
- }
-
-
- coff_fix_symbol_name(abfd, symbol, native);
-
- coff_swap_sym_out(abfd, &native->u.syment, &buf);
- bfd_write((PTR)& buf, 1, SYMESZ, abfd);
- for (j = 0; j < native->u.syment.n_numaux; j++)
- {
- AUXENT buf1;
- bzero((PTR)&buf, AUXESZ);
- coff_swap_aux_out(abfd,
- &( (native + j + 1)->u.auxent), type, class, &buf1);
- bfd_write((PTR) (&buf1), 1, AUXESZ, abfd);
- }
- /*
- Reuse somewhere in the symbol to keep the index
- */
- set_index(symbol, written);
- return written + 1 + numaux;
- }
-
-
- static unsigned int
- DEFUN(coff_write_alien_symbol,(abfd, symbol, written),
- bfd *abfd AND
- asymbol *symbol AND
- unsigned int written)
- {
- /*
- 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
- */
- combined_entry_type *native;
- combined_entry_type dummy;
- native = &dummy;
- native->u.syment.n_type = T_NULL;
- #ifdef I960
- native->u.syment.n_flags = 0;
- #endif
- if (symbol->section == &bfd_und_section)
- {
- native->u.syment.n_scnum = N_UNDEF;
- native->u.syment.n_value = symbol->value;
- }
- else if (symbol->section == &bfd_com_section)
- {
- native->u.syment.n_scnum = N_UNDEF;
- native->u.syment.n_value = symbol->value;
-
- }
-
- else if (symbol->flags & BSF_DEBUGGING) {
- /*
- remove name so it doesn't take up any space
- */
- symbol->name = "";
- }
- else {
- native->u.syment.n_scnum = symbol->section->output_section->target_index;
- native->u.syment.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->u.syment.n_flags = c->symbol.the_bfd->flags;
- }
- }
- #endif
- }
-
- #ifdef HASPAD1
- native->u.syment.pad1[0] = 0;
- native->u.syment.pad1[0] = 0;
- #endif
-
- native->u.syment.n_type = 0;
- if (symbol->flags & BSF_LOCAL)
- native->u.syment.n_sclass = C_STAT;
- else
- native->u.syment.n_sclass = C_EXT;
- native->u.syment.n_numaux = 0;
-
- return coff_write_symbol(abfd, symbol, native, written);
- }
-
- static unsigned int
- DEFUN(coff_write_native_symbol,(abfd, symbol, written),
- bfd *abfd AND
- coff_symbol_type *symbol AND
- unsigned int written)
- {
- /*
- 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
- */
- combined_entry_type *native = symbol->native;
-
- alent *lineno = symbol->lineno;
-
- if (lineno && !symbol->done_lineno) {
- unsigned int count = 0;
- lineno[count].u.offset = written;
- if (native->u.syment.n_numaux) {
- union internal_auxent *a = &((native+1)->u.auxent);
-
- a->x_sym.x_fcnary.x_fcn.x_lnnoptr =
- 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 +=
- symbol->symbol.section->output_section->vma +
- symbol->symbol.section->output_offset;
- count++;
- }
- symbol->done_lineno = true;
-
- symbol->symbol.section->output_section->moving_line_filepos +=
- count * LINESZ;
- }
- return coff_write_symbol(abfd, &( symbol->symbol), native,written);
- }
-
- static void
- DEFUN(coff_write_symbols,(abfd),
- bfd *abfd)
- {
- unsigned int i;
- unsigned int limit = bfd_get_symcount(abfd);
- unsigned int written = 0;
-
- asymbol **p;
-
- 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);
-
- if (c_symbol == (coff_symbol_type *) NULL ||
- c_symbol->native == (combined_entry_type *)NULL)
- {
- written = coff_write_alien_symbol(abfd, symbol, written);
- }
- else
- {
- written = coff_write_native_symbol(abfd, c_symbol, written);
- }
-
- }
-
- bfd_get_symcount(abfd) = written;
-
- /* Now write out strings */
-
- if (string_size != 0)
- {
- unsigned int size = string_size + 4;
- bfd_byte buffer[4];
-
- bfd_h_put_32(abfd, size, buffer);
- bfd_write((PTR) buffer, 1, sizeof(buffer), abfd);
- for (p = abfd->outsymbols, i = 0;
- i < limit;
- i++, p++)
- {
- asymbol *q = *p;
- size_t name_length = strlen(q->name);
- int maxlen;
- coff_symbol_type* c_symbol = coff_symbol_from(abfd, q);
- maxlen = ((c_symbol != NULL && c_symbol->native != NULL) &&
- (c_symbol->native->u.syment.n_sclass == C_FILE)) ?
- FILNMLEN : SYMNMLEN;
-
- if (name_length > maxlen) {
- 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);
-
- }
- }
-
- /*
- SUBSUBSECTION
- Writing Relocations
-
- To write relocations, all the back end does is step 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 and 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.
-
- */
-
- static void
- DEFUN(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);
- #else
- n.r_type = q->howto->type;
- #endif
- coff_swap_reloc_out(abfd, &n, &dst);
- bfd_write((PTR) &n, 1, RELSZ, abfd);
- }
- }
- }
- #endif /* NO_COFF_SYMBOLS */
-
- #ifndef NO_COFF_LINENOS
-
- 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;
- memset( (PTR)&out, 0, 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++;
- }
- }
- }
- }
-
- static alent *
- DEFUN(coff_get_lineno,(ignore_abfd, symbol),
- bfd *ignore_abfd AND
- asymbol *symbol)
- {
- return coffsymbol(symbol)->lineno;
- }
-
- #endif /* NO_COFF_LINENOS */
-
- 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->done_lineno = false;
- new->symbol.the_bfd = abfd;
- return &new->symbol;
- }
-
- #ifndef NO_COFF_SYMBOLS
-
- static void
- DEFUN(coff_print_symbol,(ignore_abfd, filep, symbol, how),
- bfd *ignore_abfd AND
- PTR filep AND
- asymbol *symbol AND
- bfd_print_symbol_type how)
- {
- FILE *file = (FILE *)filep;
- switch (how) {
- case bfd_print_symbol_name:
- fprintf(file, "%s", symbol->name);
- break;
- case bfd_print_symbol_more:
- fprintf(file, "coff %lx %lx", (unsigned long) coffsymbol(symbol)->native,
- (unsigned long) coffsymbol(symbol)->lineno);
- break;
- case bfd_print_symbol_nm:
-
- {
- CONST char *section_name = 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);
- }
-
-
- break;
- case bfd_print_symbol_all:
- /* Print out the symbols in a reasonable way */
- {
- CONST char *section_name = symbol->section->name;
-
-
- if (coffsymbol(symbol)->native)
- {
- unsigned int aux;
- combined_entry_type *combined = coffsymbol(symbol)->native;
- combined_entry_type *root = obj_raw_syments(ignore_abfd);
-
- fprintf(file,"[%3d]",
- combined - root);
-
-
- fprintf(file, "(sc %2d)(fl%4x)(ty%3x)(sc%3d) nx(%d) %08x %s",
- combined->u.syment.n_scnum,
- combined->u.syment.n_flags,
- combined->u.syment.n_type,
- combined->u.syment.n_sclass,
- combined->u.syment.n_numaux,
- combined->u.syment.n_value,
- symbol->name
- );
- for (aux = 0; aux < combined->u.syment.n_numaux; aux++)
- {
- fprintf(file,"\n");
- switch (combined->u.syment.n_sclass) {
- case C_FILE:
- fprintf(file, "File ");
- break;
- default:
- fprintf(file, "AUX lnno %x size %x tagndx %x",
- combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_lnno,
- combined[aux+1].u.auxent.x_sym.x_misc.x_lnsz.x_size,
- combined[aux+1].u.auxent.x_sym.x_tagndx.l);
- break;
-
- }
-
- }
-
- {
- struct lineno_cache_entry *l = coffsymbol(symbol)->lineno;
- if (l)
- {
- printf("\n%s :", l->u.sym->name);
- l++;
- while (l->line_number)
- {
- printf("\n%4d : %x",
- l->line_number,
- l->u.offset);
- l++;
-
- }
- }
- }
-
-
-
- }
-
- else {
- 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);
- }
-
- }
-
- }
- }
-
- #endif /* NO_COFF_SYMBOLS */
-
- /* 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
- DEFUN(coff_set_flags,(abfd, magicp, flagsp),
- bfd *abfd AND
- unsigned *magicp AND
- unsigned short *flagsp)
- {
- switch (bfd_get_arch(abfd)) {
-
- #ifdef I960ROMAGIC
-
- case bfd_arch_i960:
-
- {
- 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;
- case bfd_mach_i960_kb_sb:
- flags = F_I960KB;
- break;
- case bfd_mach_i960_mc:
- flags = F_I960MC;
- break;
- case bfd_mach_i960_xa:
- flags = F_I960XA;
- break;
- case bfd_mach_i960_ca:
- flags = F_I960CA;
- break;
- case bfd_mach_i960_ka_sa:
- flags = F_I960KA;
- break;
- default:
- return false;
- }
- *flagsp = flags;
- return true;
- }
- break;
- #endif
- #ifdef MIPS
- case bfd_arch_mips:
- *magicp = MIPS_MAGIC_2;
- return true;
- break;
- #endif
- #ifdef I386MAGIC
- case bfd_arch_i386:
- *magicp = I386MAGIC;
- return true;
- #endif
- #ifdef MC68MAGIC
- case bfd_arch_m68k:
- *magicp = MC68MAGIC;
- return true;
- #endif
-
- #ifdef MC88MAGIC
- case bfd_arch_m88k:
- *magicp = MC88OMAGIC;
- return true;
- break;
- #endif
- #ifdef H8300MAGIC
- case bfd_arch_h8300:
- *magicp = H8300MAGIC;
- 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 U802TOCMAGIC
- case bfd_arch_rs6000:
- *magicp = U802TOCMAGIC;
- 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
- DEFUN(coff_set_arch_mach,(abfd, arch, machine),
- bfd *abfd AND
- enum bfd_architecture arch AND
- 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
- DEFUN(coff_compute_section_file_positions,(abfd),
- bfd *abfd)
- {
- asection *current;
- asection *previous = (asection *)NULL;
- file_ptr sofar = FILHSZ;
- file_ptr old_sofar;
- 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 != (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... */
- #ifndef I960
- {
- /* 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. */
-
- current->filepos = sofar;
-
- /* make sure that this section is of the right size too */
- old_sofar = sofar += current->_raw_size;
- sofar = BFD_ALIGN(sofar, 1 << current->alignment_power);
- current->_raw_size += sofar - old_sofar ;
-
- previous = current;
- }
- obj_relocbase(abfd) = sofar;
- }
-
-
-
-
- /* SUPPRESS 558 */
- /* SUPPRESS 529 */
- static boolean
- DEFUN(coff_write_object_contents,(abfd),
- bfd *abfd)
- {
- 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;
-
-
- bfd_error = system_call_error;
- /* Number the output sections, starting from one on the first section
- with a name which doesn't start with a * */
- count = 1;
- for (current = abfd->sections; current != (asection *)NULL;
- current = current->next)
- {
- current->target_index = 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 */
-
- #ifndef NO_COFF_LINENOS
- coff_count_linenumbers(abfd);
- #endif
- data_base = scn_base;
-
- /* Work out the size of the reloc and linno areas */
-
- 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;
- #ifndef NO_COFF_LINENOS
- lnno_size += current->lineno_count * LINESZ;
- #endif
- 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->target_index > 0)
- {
-
- if (current->lineno_count) {
- current->line_filepos = lineno_base;
- current->moving_line_filepos = lineno_base;
- #ifndef NO_COFF_LINENOS
- lineno_base += current->lineno_count * LINESZ;
- #endif
- }
- 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;
- }
- }
- }
-
-
-
- /* Write section headers to the file. */
- internal_f.f_nscns = 0;
- bfd_seek(abfd,
- (file_ptr) ((abfd->flags & EXEC_P) ?
- (FILHSZ + AOUTSZ) : FILHSZ),
- SEEK_SET);
-
- {
- #if 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) {
- struct internal_scnhdr section;
- if (current->target_index > 0)
- {
- internal_f.f_nscns ++;
- strncpy(&(section.s_name[0]), current->name, 8);
- section.s_vaddr = current->vma + pad;
- section.s_paddr = current->vma + 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->_raw_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;
-
- 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;
- } else if (!strcmp(current->name, _BSS)) {
- bss_sec = current;
- }
-
- #ifdef I960
- section.s_align = (current->alignment_power
- ? 1 << current->alignment_power
- : 0);
-
- #endif
- {
- SCNHDR buff;
-
- coff_swap_scnhdr_out(abfd, §ion, &buff);
- bfd_write((PTR) (&buff), 1, SCNHSZ, abfd);
-
- }
-
- pad = 0;
- }
- }
- }
-
-
- /* OK, now set up the filehdr... */
-
- /* 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
- 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, and now we have *customers* who have requested it,
- so I'm conditionally compiling it in.
-
- sac@cygnus.com
- */
- #ifndef NOCOFF_TIMESTAMP
- internal_f.f_timdat = time(0);
- #else
- internal_f.f_timdat = 0;
- #endif
-
- if (bfd_get_symcount(abfd) != 0)
- internal_f.f_symptr = sym_base;
- else
- internal_f.f_symptr = 0;
-
- internal_f.f_flags = 0;
-
- if (abfd->flags & EXEC_P)
- internal_f.f_opthdr = AOUTSZ;
- else
- internal_f.f_opthdr = 0;
-
- if (!hasrelocs)
- internal_f.f_flags |= F_RELFLG;
- if (!haslinno)
- internal_f.f_flags |= F_LNNO;
- if (0 == bfd_get_symcount(abfd))
- internal_f.f_flags |= F_LSYMS;
- if (abfd->flags & EXEC_P)
- internal_f.f_flags |= F_EXEC;
-
- if (!abfd->xvec->byteorder_big_p)
- internal_f.f_flags |= F_AR32WR;
- else
- internal_f.f_flags |= F_AR32W;
-
- /*
- FIXME, should do something about the other byte orders and
- architectures.
- */
-
- /* Set up architecture-dependent stuff */
-
- { 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 */
-
- #if M68 || I386 || MIPS
- #define __A_MAGIC_SET__
- /* Never was anything here for the 68k */
- #endif /* M88 */
-
- #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
-
- #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;
-
- #ifndef NO_COFF_SYMBOLS
- if (bfd_get_symcount(abfd) != 0) {
- coff_renumber_symbols(abfd);
- coff_mangle_symbols(abfd);
- coff_write_symbols(abfd);
- coff_write_linenumbers(abfd);
- coff_write_relocs(abfd);
- }
- #endif /* NO_COFF_SYMBOLS */
- 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);
-
- /* now write them */
- if (bfd_seek(abfd, 0L, SEEK_SET) != 0)
- return false;
- {
- FILHDR buff;
- coff_swap_filehdr_out(abfd, &internal_f, &buff);
- bfd_write((PTR) &buff, 1, FILHSZ, abfd);
- }
- if (abfd->flags & EXEC_P) {
- AOUTHDR buff;
- coff_swap_aouthdr_out(abfd, &internal_a, &buff);
- bfd_write((PTR) &buff, 1, AOUTSZ, abfd);
- }
- return true;
- }
-
- #ifndef NO_COFF_SYMBOLS
-
- /*
- this function transforms the offsets into the symbol table into
- pointers to syments.
- */
-
-
- static void
- DEFUN(coff_pointerize_aux,(ignore_abfd, table_base, type, class, auxent),
- bfd *ignore_abfd AND
- combined_entry_type *table_base AND
- int type AND
- int class AND
- combined_entry_type *auxent)
- {
- /* Don't bother if this is a file or a section */
- if (class == C_STAT && type == T_NULL) return;
- if (class == C_FILE) return;
-
- /* Otherwise patch up */
- if (ISFCN(type) || ISTAG(class) || class == C_BLOCK) {
- auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.p = table_base +
- auxent->u.auxent.x_sym.x_fcnary.x_fcn.x_endndx.l;
- auxent->fix_end = 1;
- }
- if (auxent->u.auxent.x_sym.x_tagndx.l != 0) {
- auxent->u.auxent.x_sym.x_tagndx.p =
- table_base + auxent->u.auxent.x_sym.x_tagndx.l;
- auxent->fix_tag = 1;
- }
- }
-
- #endif /* NO_COFF_SYMBOLS */
-
- static boolean
- DEFUN(coff_set_section_contents,(abfd, section, location, offset, count),
- bfd *abfd AND
- sec_ptr section AND
- PTR location AND
- file_ptr offset AND
- bfd_size_type count)
- {
- if (abfd->output_has_begun == false) /* set by bfd.c handler */
- coff_compute_section_file_positions(abfd);
-
- bfd_seek(abfd, (file_ptr) (section->filepos + offset), SEEK_SET);
-
- if (count != 0) {
- return (bfd_write(location, 1, count, abfd) == count) ? true : false;
- }
- return true;
- }
- #if 0
- 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))
- 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! */
- return true;
- }
-
- #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() */
-
-
- #ifndef NO_COFF_SYMBOLS
-
- static char *
- DEFUN(build_string_table,(abfd),
- bfd *abfd)
- {
- char string_table_size_buffer[4];
- unsigned int string_table_size;
- char *string_table;
-
- /* 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, (bfd_byte *) 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);
- }
- return string_table;
- }
-
- /* Allocate space for the ".debug" section, and read it.
- We did not read the debug section until now, because
- we didn't want to go to the trouble until someone needed it. */
-
- static char *
- DEFUN(build_debug_section,(abfd),
- bfd *abfd)
- {
- char *debug_section;
- long position;
-
- asection *sect = bfd_get_section_by_name (abfd, ".debug");
-
- if (!sect) {
- bfd_error = no_debug_section;
- return NULL;
- }
-
- debug_section = (PTR) bfd_alloc (abfd,
- bfd_get_section_size_before_reloc (sect));
- if (debug_section == NULL) {
- bfd_error = no_memory;
- return NULL;
- }
-
- /* Seek to the beginning of the `.debug' section and read it.
- Save the current position first; it is needed by our caller.
- Then read debug section and reset the file pointer. */
-
- position = bfd_tell (abfd);
- bfd_seek (abfd, sect->filepos, SEEK_SET);
- if (bfd_read (debug_section,
- bfd_get_section_size_before_reloc (sect), 1, abfd)
- != bfd_get_section_size_before_reloc(sect)) {
- bfd_error = system_call_error;
- return NULL;
- }
- bfd_seek (abfd, position, SEEK_SET);
- return debug_section;
- }
-
-
- /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be
- \0-terminated, but will not exceed 'maxlen' characters. The copy *will*
- be \0-terminated. */
- static char *
- DEFUN(copy_name,(abfd, name, maxlen),
- bfd *abfd AND
- char *name AND
- int maxlen)
- {
- int len;
- char *newname;
-
- for (len = 0; len < maxlen; ++len) {
- if (name[len] == '\0') {
- break;
- }
- }
-
- if ((newname = (PTR) bfd_alloc(abfd, len+1)) == NULL) {
- bfd_error = no_memory;
- return (NULL);
- }
- strncpy(newname, name, len);
- newname[len] = '\0';
- return newname;
- }
-
-
- /* Read a symbol table into freshly bfd_allocated 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. */
-
- #ifndef SYMNAME_IN_DEBUG
- #define SYMNAME_IN_DEBUG(x) 0
- #endif
-
- static combined_entry_type *
- DEFUN(get_normalized_symtab,(abfd),
- bfd *abfd)
- {
- combined_entry_type *internal;
- combined_entry_type *internal_ptr;
- combined_entry_type *symbol_ptr;
- combined_entry_type *internal_end;
- SYMENT *raw;
- SYMENT *raw_src;
- SYMENT *raw_end;
- char *string_table = NULL;
- char *debug_section = NULL;
- unsigned long size;
-
- unsigned int raw_size;
- if (obj_raw_syments(abfd) != (combined_entry_type *)NULL) {
- return obj_raw_syments(abfd);
- }
- if ((size = bfd_get_symcount(abfd) * sizeof(combined_entry_type)) == 0) {
- bfd_error = no_symbols;
- return (NULL);
- }
-
- internal = (combined_entry_type *)bfd_alloc(abfd, size);
- internal_end = internal + bfd_get_symcount(abfd);
-
- raw_size = bfd_get_symcount(abfd) * SYMESZ;
- raw = (SYMENT *)bfd_alloc(abfd,raw_size);
-
- 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.
- */
-
- /* 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, (char *)raw_src, (char *)&internal_ptr->u.syment);
- internal_ptr->fix_tag = 0;
- internal_ptr->fix_end = 0;
- symbol_ptr = internal_ptr;
-
- for (i = 0;
- i < symbol_ptr->u.syment.n_numaux;
- i++)
- {
- internal_ptr++;
- raw_src++;
-
- internal_ptr->fix_tag = 0;
- internal_ptr->fix_end = 0;
- coff_swap_aux_in(abfd, (char *)(raw_src),
- symbol_ptr->u.syment.n_type,
- symbol_ptr->u.syment.n_sclass,
- &(internal_ptr->u.auxent));
- /* Remember that bal entries arn't pointerized */
- if (i != 1 || symbol_ptr->u.syment.n_sclass != C_LEAFPROC)
- {
-
- coff_pointerize_aux(abfd,
- internal,
- symbol_ptr->u.syment.n_type,
- symbol_ptr->u.syment.n_sclass,
- internal_ptr);
- }
-
- }
- }
-
- /* Free all the raw stuff */
- bfd_release(abfd, raw);
-
- for (internal_ptr = internal; internal_ptr < internal_end;
- internal_ptr ++)
- {
- if (internal_ptr->u.syment.n_sclass == C_FILE) {
- /* make a file symbol point to the name in the auxent, since
- the text ".file" is redundant */
- if ((internal_ptr+1)->u.auxent.x_file.x_n.x_zeroes == 0) {
- /* the filename is a long one, point into the string table */
- if (string_table == NULL) {
- string_table = build_string_table(abfd);
- }
-
- internal_ptr->u.syment._n._n_n._n_offset =
- (int) (string_table - 4 +
- (internal_ptr+1)->u.auxent.x_file.x_n.x_offset);
- }
- else {
- /* ordinary short filename, put into memory anyway */
- internal_ptr->u.syment._n._n_n._n_offset = (int)
- copy_name(abfd, (internal_ptr+1)->u.auxent.x_file.x_fname,
- FILNMLEN);
- }
- }
- else {
- if (internal_ptr->u.syment._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->u.syment._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->u.syment._n._n_name, i-1);
- internal_ptr->u.syment._n._n_n._n_offset = (int) newstring;
- internal_ptr->u.syment._n._n_n._n_zeroes = 0;
- }
- else if (!SYMNAME_IN_DEBUG(&internal_ptr->u.syment)) {
- /* Long name already. Point symbol at the string in the table. */
- if (string_table == NULL) {
- string_table = build_string_table(abfd);
- }
- internal_ptr->u.syment._n._n_n._n_offset = (int)
- (string_table - 4 + internal_ptr->u.syment._n._n_n._n_offset);
- }
- else {
- /* Long name in debug section. Very similar. */
- if (debug_section == NULL) {
- debug_section = build_debug_section(abfd);
- }
- internal_ptr->u.syment._n._n_n._n_offset = (int)
- (debug_section + internal_ptr->u.syment._n._n_n._n_offset);
- }
- }
- internal_ptr += internal_ptr->u.syment.n_numaux;
- }
-
- obj_raw_syments(abfd) = internal;
-
- return (internal);
- } /* get_normalized_symtab() */
-
- #endif /* NO_COFF_SYMBOLS */
-
- static
- struct sec *
- DEFUN(section_from_bfd_index,(abfd, index),
- bfd *abfd AND
- int index)
- {
- struct sec *answer = abfd->sections;
-
- if (index == N_ABS)
- {
- return &bfd_abs_section;
- }
- if (index == N_UNDEF)
- {
- return &bfd_und_section;
- }
- if(index == N_DEBUG)
- {
- return &bfd_debug_section;
-
- }
-
- while (answer) {
- if (answer->target_index == index)
- return answer;
- answer = answer->next;
- }
- BFD_ASSERT(0);
- return &bfd_und_section; /* For gcc -W and lint. Never executed. */
- }
-
- #ifndef NO_COFF_LINENOS
-
- /*
- SUBSUBSECTION
- Reading Linenumbers
-
- Creating the linenumber table is done by reading in the entire
- coff linenumber table, and creating another table for internal use.
-
- A coff line number 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.
-
- The information is copied from the external to the internal
- table, and each symbol which marks a function is marked by
- pointing its...
-
- How does this work ?
-
- */
-
- 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_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 */
-
- cache_ptr++;
- src++;
- counter++;
- }
- cache_ptr->line_number = 0;
-
- }
- asect->lineno = lineno_cache;
- /* FIXME, free native_lineno here, or use alloca or something. */
- return true;
- } /* coff_slurp_line_table() */
-
- #endif /* NO_COFF_LINENOS */
-
- #ifndef NO_COFF_LINENOS
-
- static boolean
- DEFUN(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;
- bfd_seek(abfd, obj_sym_filepos(abfd), SEEK_SET);
-
- /* Read in the symbol table */
- if ((native_symbols = 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;
- 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;
- return false;
- }
- 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) {
- 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 = (int) dst;
- dst->symbol.section = 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:
- #if 0
- dst->symbol.value = src->u.syment.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:
- #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
- */
-
- dst->symbol.flags = BSF_EXPORT | BSF_GLOBAL;
- dst->symbol.value = src->u.syment.n_value - dst->symbol.section->vma;
-
- 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;
- }
- }
-
-
- break;
-
- case C_STAT: /* static */
- #ifdef I960
- case C_LEAFSTAT: /* static leaf procedure */
- #endif
- 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
- #endif
- 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_BSTAT:
- case C_ESTAT:
- #endif
- dst->symbol.flags = BSF_DEBUGGING;
- dst->symbol.value = (src->u.syment.n_value);
- break;
-
- 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\n",
- src->u.syment.n_sclass);
- 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;
-
- 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() */
-
- 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 *));
- }
-
-
- static unsigned int
- DEFUN(coff_get_symtab, (abfd, alocation),
- bfd *abfd AND
- 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;
-
- symbase = obj_symbols(abfd);
- while (counter < bfd_get_symcount(abfd))
- {
- /* This nasty code looks at the symbol to decide whether or
- not it is descibes a constructor/destructor entry point. It
- is structured this way to (hopefully) speed non matches */
- #if 0
- if (0 && symbase->symbol.name[9] == '$')
- {
- bfd_constructor_entry(abfd,
- (asymbol **)location,
- symbase->symbol.name[10] == 'I' ?
- "CTOR" : "DTOR");
- }
- #endif
- *(location++) = symbase++;
- counter++;
- }
- *location++ = 0;
- return bfd_get_symcount(abfd);
- }
-
- #endif /* NO_COFF_SYMBOLS */
-
- 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 *);
- }
-
- /*
- 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 The entire coff relocation table is read into memory.
-
- o Each relocation is processed in turn, first it is swapped from the
- external to the internal form.
-
- o The symbol referenced in the relocation's symbol index is
- turned intoa pointer into the canonical symbol table. Note
- that this table is the same as the one returned by a call to
- @code{bfd_canonicalize_symtab}. The back end will call the
- 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.
-
-
- */
-
- #ifndef CALC_ADDEND
- #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
- if (ptr && 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; \
- }
- #endif
-
- 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;
- 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;
- #ifndef NO_COFF_SYMBOLS
- if (!coff_slurp_symbol_table(abfd))
- return false;
- #endif
- 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;
- }
-
-
- 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)
- {
- 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
-
- }
-
- asect->relocation = reloc_cache;
- return true;
- }
-
-
- /* This is stupid. This function should be a boolean predicate */
- static unsigned int
- DEFUN(coff_canonicalize_reloc, (abfd, section, relptr, symbols),
- bfd *abfd AND
- sec_ptr section AND
- arelent **relptr AND
- 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
- {
- coff_slurp_reloc_table(abfd, section, symbols);
-
-
- tblptr = section->relocation;
- if (!tblptr)
- return 0;
-
- for (; count++ < section->reloc_count;)
- *relptr++ = tblptr++;
-
-
- }
- *relptr = 0;
- return section->reloc_count;
- }
-
- #ifndef NO_COFF_SYMBOLS
-
- /*
- 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.
- */
-
- static boolean
- DEFUN(coff_find_nearest_line,(abfd,
- section,
- ignore_symbols,
- offset,
- filename_ptr,
- functionname_ptr,
- line_ptr),
- bfd *abfd AND
- asection *section AND
- asymbol **ignore_symbols AND
- bfd_vma offset AND
- CONST char **filename_ptr AND
- CONST char **functionname_ptr AND
- unsigned int *line_ptr)
- {
- 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;
- coff_data_type *cof = coff_data(abfd);
- /* Run through the raw syments if available */
- combined_entry_type *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)
- return false;
-
- if (cof == NULL)
- return false;
-
- p = cof->raw_syments;
-
- for (i = 0; i < cof->raw_syment_count; i++) {
- if (p->u.syment.n_sclass == C_FILE) {
- /* File name has been moved into symbol */
- *filename_ptr = (char *) p->u.syment._n._n_n._n_offset;
- break;
- }
- p += 1 + p->u.syment.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) {
- combined_entry_type *s = coff->native;
- s = s + 1 + s->u.syment.n_numaux;
- /*
- S should now point to the .bf of the function
- */
- if (s->u.syment.n_numaux) {
- /*
- The linenumber is stored in the auxent
- */
- union internal_auxent *a = &((s + 1)->u.auxent);
- line_base = a->x_sym.x_misc.x_lnsz.x_lnno;
- }
- }
- }
- else {
- if (l->u.offset > offset)
- break;
- *line_ptr = l->line_number + line_base + 1;
- }
- l++;
- }
-
- cache_abfd = abfd;
- cache_section = section;
- cache_offset = offset;
- cache_i = i;
- cache_l = l;
-
- return true;
- }
-
- #ifdef GNU960
- file_ptr
- coff_sym_filepos(abfd)
- bfd *abfd;
- {
- return obj_sym_filepos(abfd);
- }
- #endif
-
- #endif /* NO_COFF_SYMBOLS */
-
-
- 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 bfd_vma
- DEFUN(get_value,(reloc, seclet),
- arelent *reloc AND
- bfd_seclet_type *seclet)
- {
- bfd_vma value;
- asymbol *symbol = *(reloc->sym_ptr_ptr);
- /* A symbol holds a pointer to a section, and an offset from the
- base of the section. To relocate, we find where the section will
- live in the output and add that in */
-
- if (symbol->section == &bfd_und_section)
- {
- /* Ouch, this is an undefined symbol.. */
- bfd_error_vector.undefined_symbol(reloc, seclet);
- value = symbol->value;
- }
- else
- {
- value = symbol->value +
- symbol->section->output_offset +
- symbol->section->output_section->vma;
- }
-
-
- /* Add the value contained in the relocation */
- value += (short)((reloc->addend) & 0xffff);
-
- return value;
- }
-
- static void
- DEFUN(perform_slip,(s, slip, input_section, value),
- asymbol **s AND
- unsigned int slip AND
- asection *input_section AND
- bfd_vma value)
- {
-
- /* Find all symbols past this point, and make them know
- what's happened */
- while (*s)
- {
- asymbol *p = *s;
- if (p->section == input_section)
- {
- /* This was pointing into this section, so mangle it */
- if (p->value > value)
- {
- p->value -=2;
- }
- }
- s++;
-
- }
- }
- static int
- DEFUN(movb1,(input_section, symbols, r, shrink),
- asection *input_section AND
- asymbol **symbols AND
- arelent *r AND
- unsigned int shrink)
- {
- bfd_vma value = get_value(r,0);
-
- if (value >= 0xff00)
- {
-
- /* Change the reloc type from 16bit, possible 8 to 8bit
- possible 16 */
- r->howto = r->howto + 1;
- /* The place to relc moves back by one */
- r->address -=1;
-
- /* This will be two bytes smaller in the long run */
- shrink +=2 ;
- perform_slip(symbols, 2, input_section, r->address - shrink +1);
-
-
- }
- return shrink;
- }
-
- static int
- DEFUN(jmp1,(input_section, symbols, r, shrink),
- asection *input_section AND
- asymbol **symbols AND
- arelent *r AND
- unsigned int shrink)
- {
-
-
- bfd_vma value = get_value(r, 0);
-
- bfd_vma dot = input_section->output_section->vma +
- input_section->output_offset + r->address;
- bfd_vma gap;
-
- /* See if the address we're looking at within 127 bytes of where
- we are, if so then we can use a small branch rather than the
- jump we were going to */
-
- gap = value - (dot - shrink);
-
-
- if (-120 < (long)gap && (long)gap < 120 )
- {
-
- /* Change the reloc type from 16bit, possible 8 to 8bit
- possible 16 */
- r->howto = r->howto + 1;
- /* The place to relc moves back by one */
- r->address -=1;
-
- /* This will be two bytes smaller in the long run */
- shrink +=2 ;
- perform_slip(symbols, 2, input_section, r->address-shrink +1);
-
-
- }
- return shrink;
- }
-
- static boolean
- DEFUN(bfd_coff_relax_section,(abfd, i, symbols),
- bfd *abfd AND
- asection *i AND
- asymbol **symbols)
- {
-
- /* Get enough memory to hold the stuff */
- bfd *input_bfd = i->owner;
- asection *input_section = i;
- int shrink = 0 ;
- boolean new = false;
-
- bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
- input_section);
- arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size);
-
- /* Get the relocs and think about them */
- if (bfd_canonicalize_reloc(input_bfd,
- input_section,
- reloc_vector,
- symbols))
- {
- arelent **parent;
- for (parent = reloc_vector; *parent; parent++)
- {
- arelent *r = *parent;
- switch (r->howto->type) {
- case R_MOVB2:
- case R_JMP2:
-
- shrink+=2;
- break;
-
- case R_MOVB1:
- shrink = movb1(input_section, symbols, r, shrink);
- new = true;
-
- break;
- case R_JMP1:
- shrink = jmp1(input_section, symbols, r, shrink);
- new = true;
-
- break;
- }
- }
-
- }
- input_section->_cooked_size -= shrink;
- free((char *)reloc_vector);
- return new;
- }
-
- static bfd_byte *
- DEFUN(bfd_coff_get_relocated_section_contents,(in_abfd, seclet),
- bfd *in_abfd AND
- bfd_seclet_type *seclet)
-
- {
- /* Get enough memory to hold the stuff */
- bfd *input_bfd = seclet->u.indirect.section->owner;
- asection *input_section = seclet->u.indirect.section;
- bfd_byte *data = (bfd_byte *)malloc(input_section->_raw_size);
- bfd_size_type reloc_size = bfd_get_reloc_upper_bound(input_bfd,
- input_section);
- arelent **reloc_vector = (arelent **)bfd_xmalloc(reloc_size);
-
- /* read in the section */
- bfd_get_section_contents(input_bfd,
- input_section,
- data,
- 0,
- input_section->_raw_size);
-
-
- if (bfd_canonicalize_reloc(input_bfd,
- input_section,
- reloc_vector,
- seclet->u.indirect.symbols) )
- {
- arelent **parent = reloc_vector;
- arelent *reloc ;
-
-
-
- unsigned int dst_address = 0;
- unsigned int src_address = 0;
- unsigned int run;
- unsigned int idx;
-
- /* Find how long a run we can do */
- while (dst_address < seclet->size)
- {
-
- reloc = *parent;
- if (reloc)
- {
- /* Note that the relaxing didn't tie up the addresses in the
- relocation, so we use the original address to work out the
- run of non-relocated data */
- run = reloc->address - src_address;
- parent++;
-
- }
- else
- {
- run = seclet->size - dst_address;
- }
- /* Copy the bytes */
- for (idx = 0; idx < run; idx++)
- {
- data[dst_address++] = data[src_address++];
- }
-
- /* Now do the relocation */
-
- if (reloc)
- {
- switch (reloc->howto->type)
- {
- case R_JMP2:
- /* Speciial relaxed type */
- {
- bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma;
- int gap = get_value(reloc,seclet)-dot-1;
- if ((gap & ~0xff ) != 0 &&((gap & 0xff00)!= 0xff00)) abort();
-
- bfd_put_8(in_abfd,gap, data+dst_address);
-
- switch (data[dst_address-1])
- {
-
- case 0x5e:
- /* jsr -> bsr */
- bfd_put_8(in_abfd, 0x55, data+dst_address-1);
- break;
- case 0x5a:
- /* jmp ->bra */
- bfd_put_8(in_abfd, 0x40, data+dst_address-1);
- break;
-
- default:
- abort();
-
- }
-
-
-
-
- dst_address++;
- src_address+=3;
-
- break;
- }
-
-
- case R_MOVB2:
- /* Special relaxed type, there will be a gap between where we
- get stuff from and where we put stuff to now
-
- for a mov.b @aa:16 -> mov.b @aa:8
- opcode 0x6a 0x0y offset
- -> 0x2y off
- */
- if (data[dst_address-1] != 0x6a)
- abort();
- switch (data[dst_address] & 0xf0)
- {
- case 0x00:
- /* Src is memory */
- data[dst_address-1] = (data[src_address] & 0xf) | 0x20;
- break;
- case 0x80:
- /* Src is reg */
- data[dst_address-1] = (data[src_address] & 0xf) | 0x30;
- break;
- default:
- abort();
- }
-
- /* the offset must fit ! after all, what was all the relaxing
- about ? */
-
- bfd_put_8(in_abfd, get_value(reloc, seclet), data + dst_address);
-
- /* Note the magic - src goes up by two bytes, but dst by only
- one */
- dst_address+=1;
- src_address+=3;
-
- break;
- /* PCrel 8 bits */
- case R_PCRBYTE:
- {
- bfd_vma dot = seclet->offset + dst_address + seclet->u.indirect.section->output_section->vma;
- int gap = get_value(reloc,seclet)-dot;
- if (gap > 127 || gap < -128)
- {
- bfd_error_vector.reloc_value_truncated(reloc, seclet);
- }
-
- bfd_put_8(in_abfd,gap, data+dst_address);
- dst_address++;
- src_address++;
-
- break;
- }
-
- case R_RELBYTE:
- {
- unsigned int gap =get_value(reloc,seclet);
- if (gap > 256)
- {
- bfd_error_vector.reloc_value_truncated(reloc, seclet);
- }
-
- bfd_put_8(in_abfd, gap, data+dst_address);
- dst_address+=1;
- src_address+=1;
-
-
- }
- break;
- case R_JMP1:
- /* A relword which would have like to have been a pcrel */
- case R_MOVB1:
- /* A relword which would like to have been modified but
- didn't make it */
- case R_RELWORD:
- bfd_put_16(in_abfd, get_value(reloc,seclet), data+dst_address);
- dst_address+=2;
- src_address+=2;
- break;
-
- default:
- abort();
- }
- }
- }
- }
- free((char *)reloc_vector);
- return data;
-
- }
-
-
- #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_debug_info_start bfd_void
- #define coff_bfd_debug_info_end bfd_void
- #define coff_bfd_debug_info_accumulate (PROTO(void,(*),(bfd*, struct sec *))) bfd_void
- #define coff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
- #define coff_bfd_relax_section bfd_generic_relax_section
-
-