1 /* Support for the generic parts of most COFF variants, for BFD.
2 Copyright 1990, 1991, 1992 Free Software Foundation, Inc.
3 Written by Cygnus Support.
5 This file is part of BFD, the Binary File Descriptor library.
7 This program is free software; you can redistribute it and/or modify
8 it under the terms of the GNU General Public License as published by
9 the Free Software Foundation; either version 2 of the License, or
10 (at your option) any later version.
12 This program is distributed in the hope that it will be useful,
13 but WITHOUT ANY WARRANTY; without even the implied warranty of
14 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15 GNU General Public License for more details.
17 You should have received a copy of the GNU General Public License
18 along with this program; if not, write to the Free Software
19 Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. */
22 Most of this hacked by Steve Chamberlain,
30 BFD supports a number of different flavours of coff format.
31 The major difference between formats are the sizes and
32 alignments of fields in structures on disk, and the occasional
35 Coff in all its varieties is implimented with a few common
36 files and a number of implementation specific files. For
37 example, The 88k bcs coff format is implemented in the file
38 @code{coff-m88k.c}. This file @code{#include}s
39 @code{coff-m88k.h} which defines the external structure of the
40 coff format for the 88k, and @code{internalcoff.h} which
41 defines the internal structure. @code{coff-m88k.c} also
42 defines pthe relocations used by the 88k format
43 @xref{Relocations}. Then the major portion of coff code is
44 included (@code{coffcode.h}) which defines the methods used to
45 act upon the types defined in @code{coff-m88k.h} and
46 @code{internalcoff.h}.
49 The Intel i960 processor version of coff is implemented in
50 @code{coff-i960.c}. This file has the same structure as
51 @code{coff-m88k.c}, except that it includes @code{coff-i960.h}
52 rather than @code{coff-m88k.h}.
55 Porting To A New Version of Coff
57 The recommended method is to select from the existing
58 implimentations the version of coff which is most like the one
59 you want to use, for our purposes, we'll say that i386 coff is
60 the one you select, and that your coff flavour is called foo.
61 Copy the @code{i386coff.c} to @code{foocoff.c}, copy
62 @code{../include/i386coff.h} to @code{../include/foocoff.h}
63 and add the lines to @code{targets.c} and @code{Makefile.in}
64 so that your new back end is used. Alter the shapes of the
65 structures in @code{../include/foocoff.h} so that they match
66 what you need. You will probably also have to add
67 @code{#ifdef}s to the code in @code{internalcoff.h} and
68 @code{coffcode.h} if your version of coff is too wild.
70 You can verify that your new BFD backend works quite simply by
71 building @code{objdump} from the @code{binutils} directory,
72 and making sure that its version of what's going on at your
73 host systems idea (assuming it has the pretty standard coff
74 dump utility (usually called @code{att-dump} or just
75 @code{dump})) are the same. Then clean up your code, and send
76 what you've done to Cygnus. Then your stuff will be in the
77 next release, and you won't have to keep integrating it.
80 How The Coff Backend Works
85 Each flavour of coff supported in BFD has its own header file
86 descibing the external layout of the structures. There is also
87 an internal description of the coff layout (in
88 @code{internalcoff.h}). A major function of the
89 coff backend is swapping the bytes and twiddling the bits to
90 translate the external form of the structures into the normal
91 internal form. This is all performed in the
92 @code{bfd_swap}_@i{thing}_@i{direction} routines. Some
93 elements are different sizes between different versions of
94 coff, it is the duty of the coff version specific include file
95 to override the definitions of various packing routines in
96 @code{coffcode.h}. Eg the size of line number entry in coff is
97 sometimes 16 bits, and sometimes 32 bits. @code{#define}ing
98 @code{PUT_LNSZ_LNNO} and @code{GET_LNSZ_LNNO} will select the
99 correct one. No doubt, some day someone will find a version of
100 coff which has a varying field size not catered for at the
101 moment. To port BFD, that person will have to add more @code{#defines}.
102 Three of the bit twiddling routines are exported to
103 @code{gdb}; @code{coff_swap_aux_in}, @code{coff_swap_sym_in}
104 and @code{coff_swap_linno_in}. @code{GDB} reads the symbol
105 table on its own, but uses BFD to fix things up. More of the
106 bit twiddlers are exported for @code{gas};
107 @code{coff_swap_aux_out}, @code{coff_swap_sym_out},
108 @code{coff_swap_lineno_out}, @code{coff_swap_reloc_out},
109 @code{coff_swap_filehdr_out}, @code{coff_swap_aouthdr_out},
110 @code{coff_swap_scnhdr_out}. @code{Gas} currently keeps track
111 of all the symbol table and reloc drudgery itself, thereby
112 saving the internal BFD overhead, but uses BFD to swap things
113 on the way out, making cross ports much safer. This also
114 allows BFD (and thus the linker) to use the same header files
115 as @code{gas}, which makes one avenue to disaster disappear.
120 The simple canonical form for symbols used by BFD is not rich
121 enough to keep all the information available in a coff symbol
122 table. The back end gets around this by keeping the original
123 symbol table around, "behind the scenes".
125 When a symbol table is requested (through a call to
126 @code{bfd_canonicalize_symtab}, a request gets through to
127 @code{get_normalized_symtab}. This reads the symbol table from
128 the coff file and swaps all the structures inside into the
129 internal form. It also fixes up all the pointers in the table
130 (represented in the file by offsets from the first symbol in
131 the table) into physical pointers to elements in the new
132 internal table. This involves some work since the meanings of
133 fields changes depending upon context; a field that is a
134 pointer to another structure in the symbol table at one moment
135 may be the size in bytes of a structure in the next. Another
136 pass is made over the table. All symbols which mark file names
137 (<<C_FILE>> symbols) are modified so that the internal
138 string points to the value in the auxent (the real filename)
139 rather than the normal text associated with the symbol
142 At this time the symbol names are moved around. Coff stores
143 all symbols less than nine characters long physically
144 within the symbol table, longer strings are kept at the end of
145 the file in the string table. This pass moves all strings
146 into memory, and replaces them with pointers to the strings.
149 The symbol table is massaged once again, this time to create
150 the canonical table used by the BFD application. Each symbol
151 is inspected in turn, and a decision made (using the
152 @code{sclass} field) about the various flags to set in the
153 @code{asymbol} @xref{Symbols}. The generated canonical table
154 shares strings with the hidden internal symbol table.
156 Any linenumbers are read from the coff file too, and attached
157 to the symbols which own the functions the linenumbers belong to.
162 Writing a symbol to a coff file which didn't come from a coff
163 file will lose any debugging information. The @code{asymbol}
164 structure remembers the BFD from which was born, and on output
165 the back end makes sure that the same destination target as
166 source target is present.
168 When the symbols have come from a coff file then all the
169 debugging information is preserved.
171 Symbol tables are provided for writing to the back end in a
172 vector of pointers to pointers. This allows applications like
173 the linker to accumulate and output large symbol tables
174 without having to do too much byte copying.
176 This function runs through the provided symbol table and
177 patches each symbol marked as a file place holder
178 (@code{C_FILE}) to point to the next file place holder in the
179 list. It also marks each @code{offset} field in the list with
180 the offset from the first symbol of the current symbol.
182 Another function of this procedure is to turn the canonical
183 value form of BFD into the form used by coff. Internally, BFD
184 expects symbol values to be offsets from a section base; so a
185 symbol physically at 0x120, but in a section starting at
186 0x100, would have the value 0x20. Coff expects symbols to
187 contain their final value, so symbols have their values
188 changed at this point to reflect their sum with their owning
189 section. Note that this transformation uses the
190 <<output_section>> field of the @code{asymbol}'s
191 @code{asection} @xref{Sections}.
193 o coff_mangle_symbols
195 This routine runs though the provided symbol table and uses
196 the offsets generated by the previous pass and the pointers
197 generated when the symbol table was read in to create the
198 structured hierachy required by coff. It changes each pointer
199 to a symbol to an index into the symbol table of the symbol
204 This routine runs through the symbol table and patches up the
205 symbols from their internal form into the coff way, calls the
206 bit twiddlers and writes out the tabel to the file.
215 The hidden information for an asymbol is described in a
216 coff_ptr_struct, which is typedefed to a combined_entry_type
220 .typedef struct coff_ptr_struct
223 . {* Remembers the offset from the first symbol in the file for
224 . this symbol. Generated by coff_renumber_symbols. *}
225 .unsigned int offset;
227 . {* Should the tag field of this symbol be renumbered.
228 . Created by coff_pointerize_aux. *}
231 . {* Should the endidx field of this symbol be renumbered.
232 . Created by coff_pointerize_aux. *}
235 . {* The container for the symbol structure as read and translated
239 . union internal_auxent auxent;
240 . struct internal_syment syment;
242 .} combined_entry_type;
245 .{* Each canonical asymbol really looks like this: *}
247 .typedef struct coff_symbol_struct
249 . {* The actual symbol which the rest of BFD works with *}
252 . {* A pointer to the hidden information for this symbol *}
253 .combined_entry_type *native;
255 . {* A pointer to the linenumber information for this symbol *}
256 .struct lineno_cache_entry *lineno;
258 . {* Have the line numbers been relocated yet ? *}
259 .boolean done_lineno;
266 extern bfd_error_vector_type bfd_error_vector
;
271 #define PUTWORD bfd_h_put_32
272 #define PUTHALF bfd_h_put_16
273 #define PUTBYTE bfd_h_put_8
275 #ifndef GET_FCN_LNNOPTR
276 #define GET_FCN_LNNOPTR(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
279 #ifndef GET_FCN_ENDNDX
280 #define GET_FCN_ENDNDX(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
283 #ifndef PUT_FCN_LNNOPTR
284 #define PUT_FCN_LNNOPTR(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_lnnoptr)
286 #ifndef PUT_FCN_ENDNDX
287 #define PUT_FCN_ENDNDX(abfd, in, ext) PUTWORD(abfd, in, (bfd_byte *) ext->x_sym.x_fcnary.x_fcn.x_endndx)
289 #ifndef GET_LNSZ_LNNO
290 #define GET_LNSZ_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_lnno)
292 #ifndef GET_LNSZ_SIZE
293 #define GET_LNSZ_SIZE(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) ext->x_sym.x_misc.x_lnsz.x_size)
295 #ifndef PUT_LNSZ_LNNO
296 #define PUT_LNSZ_LNNO(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_sym.x_misc.x_lnsz.x_lnno)
298 #ifndef PUT_LNSZ_SIZE
299 #define PUT_LNSZ_SIZE(abfd, in, ext) bfd_h_put_16(abfd, in, (bfd_byte*) ext->x_sym.x_misc.x_lnsz.x_size)
301 #ifndef GET_SCN_SCNLEN
302 #define GET_SCN_SCNLEN(abfd, ext) bfd_h_get_32(abfd, (bfd_byte *) ext->x_scn.x_scnlen)
304 #ifndef GET_SCN_NRELOC
305 #define GET_SCN_NRELOC(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nreloc)
307 #ifndef GET_SCN_NLINNO
308 #define GET_SCN_NLINNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *)ext->x_scn.x_nlinno)
310 #ifndef PUT_SCN_SCNLEN
311 #define PUT_SCN_SCNLEN(abfd,in, ext) bfd_h_put_32(abfd, in, (bfd_byte *) ext->x_scn.x_scnlen)
313 #ifndef PUT_SCN_NRELOC
314 #define PUT_SCN_NRELOC(abfd,in, ext) bfd_h_put_16(abfd, in, (bfd_byte *)ext->x_scn.x_nreloc)
316 #ifndef PUT_SCN_NLINNO
317 #define PUT_SCN_NLINNO(abfd,in, ext) bfd_h_put_16(abfd,in, (bfd_byte *) ext->x_scn.x_nlinno)
319 #ifndef GET_LINENO_LNNO
320 #define GET_LINENO_LNNO(abfd, ext) bfd_h_get_16(abfd, (bfd_byte *) (ext->l_lnno));
322 #ifndef PUT_LINENO_LNNO
323 #define PUT_LINENO_LNNO(abfd,val, ext) bfd_h_put_16(abfd,val, (bfd_byte *) (ext->l_lnno));
327 /* void warning(); */
330 * Return a word with STYP_* (scnhdr.s_flags) flags set to represent the
331 * incoming SEC_* flags. The inverse of this function is styp_to_sec_flags().
332 * NOTE: If you add to/change this routine, you should mirror the changes
333 * in styp_to_sec_flags().
336 DEFUN(sec_to_styp_flags
, (sec_name
, sec_flags
),
337 CONST
char * sec_name AND
342 if (!strcmp(sec_name
, _TEXT
)) {
343 return((long)STYP_TEXT
);
344 } else if (!strcmp(sec_name
, _DATA
)) {
345 return((long)STYP_DATA
);
347 } else if (!strcmp(sec_name
, ".data2")) {
348 return((long)STYP_DATA
);
349 #endif /* TWO_DATA_SECS */
350 } else if (!strcmp(sec_name
, _BSS
)) {
351 return((long)STYP_BSS
);
353 } else if (!strcmp(sec_name
, _COMMENT
)) {
354 return((long)STYP_INFO
);
355 #endif /* _COMMENT */
357 } else if (!strcmp(sec_name
, _LIB
)) {
358 return((long)STYP_LIB
);
362 /* Try and figure out what it should be */
363 if (sec_flags
& SEC_CODE
) styp_flags
= STYP_TEXT
;
364 if (sec_flags
& SEC_DATA
) styp_flags
= STYP_DATA
;
365 else if (sec_flags
& SEC_READONLY
)
366 #ifdef STYP_LIT /* 29k readonly text/data section */
367 styp_flags
= STYP_LIT
;
369 styp_flags
= STYP_TEXT
;
370 #endif /* STYP_LIT */
371 else if (sec_flags
& SEC_LOAD
) styp_flags
= STYP_TEXT
;
373 if (styp_flags
== 0) styp_flags
= STYP_BSS
;
376 if (sec_flags
& SEC_NEVER_LOAD
)
377 styp_flags
|= STYP_NOLOAD
;
383 * Return a word with SEC_* flags set to represent the incoming
384 * STYP_* flags (from scnhdr.s_flags). The inverse of this
385 * function is sec_to_styp_flags().
386 * NOTE: If you add to/change this routine, you should mirror the changes
387 * in sec_to_styp_flags().
390 DEFUN(styp_to_sec_flags
, (styp_flags
),
393 flagword sec_flags
=0;
396 if (styp_flags
& STYP_NOLOAD
)
398 sec_flags
|= SEC_NEVER_LOAD
;
400 #endif /* STYP_NOLOAD */
402 /* For 386 COFF, at least, an unloadable text or data section is
403 actually a shared library section. */
404 if (styp_flags
& STYP_TEXT
)
406 if (sec_flags
& SEC_NEVER_LOAD
)
407 sec_flags
|= SEC_CODE
| SEC_SHARED_LIBRARY
;
409 sec_flags
|= SEC_CODE
| SEC_LOAD
| SEC_ALLOC
;
411 else if (styp_flags
& STYP_DATA
)
413 if (sec_flags
& SEC_NEVER_LOAD
)
414 sec_flags
|= SEC_DATA
| SEC_SHARED_LIBRARY
;
416 sec_flags
|= SEC_DATA
| SEC_LOAD
| SEC_ALLOC
;
418 else if (styp_flags
& STYP_BSS
)
420 sec_flags
|= SEC_ALLOC
;
422 else if (styp_flags
& STYP_INFO
)
424 sec_flags
|= SEC_NEVER_LOAD
;
428 sec_flags
|= SEC_ALLOC
| SEC_LOAD
;
431 #ifdef STYP_LIT /* A29k readonly text/data section type */
432 if ((styp_flags
& STYP_LIT
) == STYP_LIT
)
434 sec_flags
= (SEC_LOAD
| SEC_ALLOC
| SEC_READONLY
);
436 #endif /* STYP_LIT */
437 #ifdef STYP_OTHER_LOAD /* Other loaded sections */
438 if (styp_flags
& STYP_OTHER_LOAD
)
440 sec_flags
= (SEC_LOAD
| SEC_ALLOC
);
442 #endif /* STYP_SDATA */
447 #define get_index(symbol) ((int) (symbol)->udata)
448 #define set_index(symbol, idx) ((symbol)->udata =(PTR) (idx))
450 /* **********************************************************************
451 Here are all the routines for swapping the structures seen in the
452 outside world into the internal forms.
457 bfd_coff_backend_data
462 Special entry points for gdb to swap in coff symbol table parts
464 . void (*_bfd_coff_swap_aux_in) PARAMS ((
471 . void (*_bfd_coff_swap_sym_in) PARAMS ((
476 . void (*_bfd_coff_swap_lineno_in) PARAMS ((
482 Special entry points for gas to swap coff parts
484 . unsigned int (*_bfd_coff_swap_aux_out) PARAMS ((
491 . unsigned int (*_bfd_coff_swap_sym_out) PARAMS ((
496 . unsigned int (*_bfd_coff_swap_lineno_out) PARAMS ((
501 . unsigned int (*_bfd_coff_swap_reloc_out) PARAMS ((
506 . unsigned int (*_bfd_coff_swap_filehdr_out) PARAMS ((
511 . unsigned int (*_bfd_coff_swap_aouthdr_out) PARAMS ((
516 . unsigned int (*_bfd_coff_swap_scnhdr_out) PARAMS ((
521 .} bfd_coff_backend_data;
523 .#define coff_backend_info(abfd) ((bfd_coff_backend_data *) (abfd)->xvec->backend_data)
525 .#define bfd_coff_swap_aux_in(a,e,t,c,i) \
526 . ((coff_backend_info (a)->_bfd_coff_swap_aux_in) (a,e,t,c,i))
528 .#define bfd_coff_swap_sym_in(a,e,i) \
529 . ((coff_backend_info (a)->_bfd_coff_swap_sym_in) (a,e,i))
531 .#define bfd_coff_swap_lineno_in(a,e,i) \
532 . ((coff_backend_info ( a)->_bfd_coff_swap_lineno_in) (a,e,i))
534 .#define bfd_coff_swap_reloc_out(abfd, i, o) \
535 . ((coff_backend_info (abfd)->_bfd_coff_swap_reloc_out) (abfd, i, o))
537 .#define bfd_coff_swap_lineno_out(abfd, i, o) \
538 . ((coff_backend_info (abfd)->_bfd_coff_swap_lineno_out) (abfd, i, o))
540 .#define bfd_coff_swap_aux_out(abfd, i, t,c,o) \
541 . ((coff_backend_info (abfd)->_bfd_coff_swap_aux_out) (abfd, i,t,c, o))
543 .#define bfd_coff_swap_sym_out(abfd, i,o) \
544 . ((coff_backend_info (abfd)->_bfd_coff_swap_sym_out) (abfd, i, o))
546 .#define bfd_coff_swap_scnhdr_out(abfd, i,o) \
547 . ((coff_backend_info (abfd)->_bfd_coff_swap_scnhdr_out) (abfd, i, o))
549 .#define bfd_coff_swap_filehdr_out(abfd, i,o) \
550 . ((coff_backend_info (abfd)->_bfd_coff_swap_filehdr_out) (abfd, i, o))
552 .#define bfd_coff_swap_aouthdr_out(abfd, i,o) \
553 . ((coff_backend_info (abfd)->_bfd_coff_swap_aouthdr_out) (abfd, i, o))
558 DEFUN(bfd_swap_reloc_in
,(abfd
, reloc_src
, reloc_dst
),
561 struct internal_reloc
*reloc_dst
)
563 reloc_dst
->r_vaddr
= bfd_h_get_32(abfd
, (bfd_byte
*)reloc_src
->r_vaddr
);
564 reloc_dst
->r_symndx
= bfd_h_get_32(abfd
, (bfd_byte
*) reloc_src
->r_symndx
);
567 reloc_dst
->r_type
= bfd_h_get_8(abfd
, reloc_src
->r_type
);
568 reloc_dst
->r_size
= bfd_h_get_8(abfd
, reloc_src
->r_size
);
570 reloc_dst
->r_type
= bfd_h_get_16(abfd
, (bfd_byte
*) reloc_src
->r_type
);
573 #ifdef SWAP_IN_RELOC_OFFSET
574 reloc_dst
->r_offset
= SWAP_IN_RELOC_OFFSET(abfd
,
575 (bfd_byte
*) reloc_src
->r_offset
);
581 DEFUN(coff_swap_reloc_out
,(abfd
, src
, dst
),
586 struct internal_reloc
*reloc_src
= (struct internal_reloc
*)src
;
587 struct external_reloc
*reloc_dst
= (struct external_reloc
*)dst
;
588 bfd_h_put_32(abfd
, reloc_src
->r_vaddr
, (bfd_byte
*) reloc_dst
->r_vaddr
);
589 bfd_h_put_32(abfd
, reloc_src
->r_symndx
, (bfd_byte
*) reloc_dst
->r_symndx
);
590 bfd_h_put_16(abfd
, reloc_src
->r_type
, (bfd_byte
*)
593 #ifdef SWAP_OUT_RELOC_OFFSET
594 SWAP_OUT_RELOC_OFFSET(abfd
,
596 (bfd_byte
*) reloc_dst
->r_offset
);
598 #ifdef SWAP_OUT_RELOC_EXTRA
599 SWAP_OUT_RELOC_EXTRA(abfd
,reloc_src
, reloc_dst
);
602 return sizeof(struct external_reloc
);
606 DEFUN(bfd_swap_filehdr_in
,(abfd
, filehdr_src
, filehdr_dst
),
608 FILHDR
*filehdr_src AND
609 struct internal_filehdr
*filehdr_dst
)
611 filehdr_dst
->f_magic
= bfd_h_get_16(abfd
, (bfd_byte
*) filehdr_src
->f_magic
);
612 filehdr_dst
->f_nscns
= bfd_h_get_16(abfd
, (bfd_byte
*)filehdr_src
-> f_nscns
);
613 filehdr_dst
->f_timdat
= bfd_h_get_32(abfd
, (bfd_byte
*)filehdr_src
-> f_timdat
);
614 filehdr_dst
->f_symptr
= bfd_h_get_32(abfd
, (bfd_byte
*)filehdr_src
-> f_symptr
);
615 filehdr_dst
->f_nsyms
= bfd_h_get_32(abfd
, (bfd_byte
*)filehdr_src
-> f_nsyms
);
616 filehdr_dst
->f_opthdr
= bfd_h_get_16(abfd
, (bfd_byte
*)filehdr_src
-> f_opthdr
);
617 filehdr_dst
->f_flags
= bfd_h_get_16(abfd
, (bfd_byte
*)filehdr_src
-> f_flags
);
621 DEFUN(coff_swap_filehdr_out
,(abfd
, in
, out
),
626 struct internal_filehdr
*filehdr_in
= (struct internal_filehdr
*)in
;
627 FILHDR
*filehdr_out
= (FILHDR
*)out
;
628 bfd_h_put_16(abfd
, filehdr_in
->f_magic
, (bfd_byte
*) filehdr_out
->f_magic
);
629 bfd_h_put_16(abfd
, filehdr_in
->f_nscns
, (bfd_byte
*) filehdr_out
->f_nscns
);
630 bfd_h_put_32(abfd
, filehdr_in
->f_timdat
, (bfd_byte
*) filehdr_out
->f_timdat
);
631 bfd_h_put_32(abfd
, filehdr_in
->f_symptr
, (bfd_byte
*) filehdr_out
->f_symptr
);
632 bfd_h_put_32(abfd
, filehdr_in
->f_nsyms
, (bfd_byte
*) filehdr_out
->f_nsyms
);
633 bfd_h_put_16(abfd
, filehdr_in
->f_opthdr
, (bfd_byte
*) filehdr_out
->f_opthdr
);
634 bfd_h_put_16(abfd
, filehdr_in
->f_flags
, (bfd_byte
*) filehdr_out
->f_flags
);
635 return sizeof(FILHDR
);
639 #ifndef NO_COFF_SYMBOLS
642 DEFUN(coff_swap_sym_in
,(abfd
, ext1
, in1
),
647 SYMENT
*ext
= (SYMENT
*)ext1
;
648 struct internal_syment
*in
= (struct internal_syment
*)in1
;
650 if( ext
->e
.e_name
[0] == 0) {
651 in
->_n
._n_n
._n_zeroes
= 0;
652 in
->_n
._n_n
._n_offset
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->e
.e
.e_offset
);
655 #if SYMNMLEN != E_SYMNMLEN
656 -> Error
, we need to cope with truncating
or extending SYMNMLEN
!;
658 memcpy(in
->_n
._n_name
, ext
->e
.e_name
, SYMNMLEN
);
661 in
->n_value
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->e_value
);
662 in
->n_scnum
= bfd_h_get_16(abfd
, (bfd_byte
*) ext
->e_scnum
);
663 if (sizeof(ext
->e_type
) == 2){
664 in
->n_type
= bfd_h_get_16(abfd
, (bfd_byte
*) ext
->e_type
);
667 in
->n_type
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->e_type
);
669 in
->n_sclass
= bfd_h_get_8(abfd
, ext
->e_sclass
);
670 in
->n_numaux
= bfd_h_get_8(abfd
, ext
->e_numaux
);
674 DEFUN(coff_swap_sym_out
,(abfd
, inp
, extp
),
679 struct internal_syment
*in
= (struct internal_syment
*)inp
;
680 SYMENT
*ext
=(SYMENT
*)extp
;
681 if(in
->_n
._n_name
[0] == 0) {
682 bfd_h_put_32(abfd
, 0, (bfd_byte
*) ext
->e
.e
.e_zeroes
);
683 bfd_h_put_32(abfd
, in
->_n
._n_n
._n_offset
, (bfd_byte
*) ext
->e
.e
.e_offset
);
686 #if SYMNMLEN != E_SYMNMLEN
687 -> Error
, we need to cope with truncating
or extending SYMNMLEN
!;
689 memcpy(ext
->e
.e_name
, in
->_n
._n_name
, SYMNMLEN
);
692 bfd_h_put_32(abfd
, in
->n_value
, (bfd_byte
*) ext
->e_value
);
693 bfd_h_put_16(abfd
, in
->n_scnum
, (bfd_byte
*) ext
->e_scnum
);
694 if (sizeof(ext
->e_type
) == 2)
696 bfd_h_put_16(abfd
, in
->n_type
, (bfd_byte
*) ext
->e_type
);
700 bfd_h_put_32(abfd
, in
->n_type
, (bfd_byte
*) ext
->e_type
);
702 bfd_h_put_8(abfd
, in
->n_sclass
, ext
->e_sclass
);
703 bfd_h_put_8(abfd
, in
->n_numaux
, ext
->e_numaux
);
704 return sizeof(SYMENT
);
708 DEFUN(coff_swap_aux_in
,(abfd
, ext1
, type
, class, in1
),
715 AUXENT
*ext
= (AUXENT
*)ext1
;
716 union internal_auxent
*in
= (union internal_auxent
*)in1
;
720 if (ext
->x_file
.x_fname
[0] == 0) {
721 in
->x_file
.x_n
.x_zeroes
= 0;
722 in
->x_file
.x_n
.x_offset
=
723 bfd_h_get_32(abfd
, (bfd_byte
*) ext
->x_file
.x_n
.x_offset
);
725 #if FILNMLEN != E_FILNMLEN
726 -> Error
, we need to cope with truncating
or extending FILNMLEN
!;
728 memcpy (in
->x_file
.x_fname
, ext
->x_file
.x_fname
, FILNMLEN
);
733 /* RS/6000 "csect" auxents */
737 in
->x_csect
.x_scnlen
= bfd_h_get_32 (abfd
, (bfd_byte
*) ext
->x_csect
.x_scnlen
);
738 in
->x_csect
.x_parmhash
= bfd_h_get_32 (abfd
, (bfd_byte
*) ext
->x_csect
.x_parmhash
);
739 in
->x_csect
.x_snhash
= bfd_h_get_16 (abfd
, (bfd_byte
*) ext
->x_csect
.x_snhash
);
740 /* We don't have to hack bitfields in x_smtyp because it's defined by
741 shifts-and-ands, which are equivalent on all byte orders. */
742 in
->x_csect
.x_smtyp
= bfd_h_get_8 (abfd
, (bfd_byte
*) ext
->x_csect
.x_smtyp
);
743 in
->x_csect
.x_smclas
= bfd_h_get_8 (abfd
, (bfd_byte
*) ext
->x_csect
.x_smclas
);
744 in
->x_csect
.x_stab
= bfd_h_get_32 (abfd
, (bfd_byte
*) ext
->x_csect
.x_stab
);
745 in
->x_csect
.x_snstab
= bfd_h_get_16 (abfd
, (bfd_byte
*) ext
->x_csect
.x_snstab
);
754 if (type
== T_NULL
) {
755 in
->x_scn
.x_scnlen
= GET_SCN_SCNLEN(abfd
, ext
);
756 in
->x_scn
.x_nreloc
= GET_SCN_NRELOC(abfd
, ext
);
757 in
->x_scn
.x_nlinno
= GET_SCN_NLINNO(abfd
, ext
);
761 in
->x_sym
.x_tagndx
.l
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->x_sym
.x_tagndx
);
763 in
->x_sym
.x_tvndx
= bfd_h_get_16(abfd
, (bfd_byte
*) ext
->x_sym
.x_tvndx
);
767 #if DIMNUM != E_DIMNUM
768 -> Error
, we need to cope with truncating
or extending DIMNUM
!;
770 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]);
771 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]);
772 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]);
773 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]);
776 if (class == C_BLOCK
|| ISFCN(type
) || ISTAG(class)) {
777 in
->x_sym
.x_fcnary
.x_fcn
.x_lnnoptr
= GET_FCN_LNNOPTR(abfd
, ext
);
778 in
->x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
= GET_FCN_ENDNDX(abfd
, ext
);
782 in
->x_sym
.x_misc
.x_fsize
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->x_sym
.x_misc
.x_fsize
);
785 in
->x_sym
.x_misc
.x_lnsz
.x_lnno
= GET_LNSZ_LNNO(abfd
, ext
);
786 in
->x_sym
.x_misc
.x_lnsz
.x_size
= GET_LNSZ_SIZE(abfd
, ext
);
792 DEFUN(coff_swap_aux_out
,(abfd
, inp
, type
, class, extp
),
799 union internal_auxent
*in
= (union internal_auxent
*)inp
;
800 AUXENT
*ext
= (AUXENT
*)extp
;
802 memset((PTR
)ext
, 0, AUXESZ
);
805 if (in
->x_file
.x_fname
[0] == 0) {
806 PUTWORD(abfd
, 0, (bfd_byte
*) ext
->x_file
.x_n
.x_zeroes
);
808 in
->x_file
.x_n
.x_offset
,
809 (bfd_byte
*) ext
->x_file
.x_n
.x_offset
);
812 #if FILNMLEN != E_FILNMLEN
813 -> Error
, we need to cope with truncating
or extending FILNMLEN
!;
815 memcpy (ext
->x_file
.x_fname
, in
->x_file
.x_fname
, FILNMLEN
);
821 /* RS/6000 "csect" auxents */
824 PUTWORD (abfd
, in
->x_csect
.x_scnlen
, ext
->x_csect
.x_scnlen
);
825 PUTWORD (abfd
, in
->x_csect
.x_parmhash
, ext
->x_csect
.x_parmhash
);
826 PUTHALF (abfd
, in
->x_csect
.x_snhash
, ext
->x_csect
.x_snhash
);
827 /* We don't have to hack bitfields in x_smtyp because it's defined by
828 shifts-and-ands, which are equivalent on all byte orders. */
829 PUTBYTE (abfd
, in
->x_csect
.x_smtyp
, ext
->x_csect
.x_smtyp
);
830 PUTBYTE (abfd
, in
->x_csect
.x_smclas
, ext
->x_csect
.x_smclas
);
831 PUTWORD (abfd
, in
->x_csect
.x_stab
, ext
->x_csect
.x_stab
);
832 PUTHALF (abfd
, in
->x_csect
.x_snstab
, ext
->x_csect
.x_snstab
);
841 if (type
== T_NULL
) {
842 PUT_SCN_SCNLEN(abfd
, in
->x_scn
.x_scnlen
, ext
);
843 PUT_SCN_NRELOC(abfd
, in
->x_scn
.x_nreloc
, ext
);
844 PUT_SCN_NLINNO(abfd
, in
->x_scn
.x_nlinno
, ext
);
848 PUTWORD(abfd
, in
->x_sym
.x_tagndx
.l
, (bfd_byte
*) ext
->x_sym
.x_tagndx
);
850 bfd_h_put_16(abfd
, in
->x_sym
.x_tvndx
, (bfd_byte
*) ext
->x_sym
.x_tvndx
);
853 if (class == C_BLOCK
|| ISFCN(type
) || ISTAG(class)) {
854 PUT_FCN_LNNOPTR(abfd
, in
->x_sym
.x_fcnary
.x_fcn
.x_lnnoptr
, ext
);
855 PUT_FCN_ENDNDX(abfd
, in
->x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
, ext
);
859 PUTWORD(abfd
, in
->x_sym
.x_misc
.x_fsize
, (bfd_byte
*) ext
->x_sym
.x_misc
.x_fsize
);
863 #if DIMNUM != E_DIMNUM
864 -> Error
, we need to cope with truncating
or extending DIMNUM
!;
866 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]);
867 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]);
868 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]);
869 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]);
872 PUT_LNSZ_LNNO(abfd
, in
->x_sym
.x_misc
.x_lnsz
.x_lnno
, ext
);
873 PUT_LNSZ_SIZE(abfd
, in
->x_sym
.x_misc
.x_lnsz
.x_size
, ext
);
876 return sizeof(AUXENT
);
879 #endif /* NO_COFF_SYMBOLS */
881 #ifndef NO_COFF_LINENOS
884 DEFUN(coff_swap_lineno_in
,(abfd
, ext1
, in1
),
889 LINENO
*ext
= (LINENO
*)ext1
;
890 struct internal_lineno
*in
= (struct internal_lineno
*)in1
;
892 in
->l_addr
.l_symndx
= bfd_h_get_32(abfd
, (bfd_byte
*) ext
->l_addr
.l_symndx
);
893 in
->l_lnno
= GET_LINENO_LNNO(abfd
, ext
);
897 DEFUN(coff_swap_lineno_out
,(abfd
, inp
, outp
),
902 struct internal_lineno
*in
= (struct internal_lineno
*)inp
;
903 struct external_lineno
*ext
= (struct external_lineno
*)outp
;
904 PUTWORD(abfd
, in
->l_addr
.l_symndx
, (bfd_byte
*)
905 ext
->l_addr
.l_symndx
);
907 PUT_LINENO_LNNO (abfd
, in
->l_lnno
, ext
);
908 return sizeof(struct external_lineno
);
911 #endif /* NO_COFF_LINENOS */
915 DEFUN(bfd_swap_aouthdr_in
,(abfd
, aouthdr_ext1
, aouthdr_int1
),
920 AOUTHDR
*aouthdr_ext
= (AOUTHDR
*) aouthdr_ext1
;
921 struct internal_aouthdr
*aouthdr_int
= (struct internal_aouthdr
*)aouthdr_int1
;
923 aouthdr_int
->magic
= bfd_h_get_16(abfd
, (bfd_byte
*) aouthdr_ext
->magic
);
924 aouthdr_int
->vstamp
= bfd_h_get_16(abfd
, (bfd_byte
*) aouthdr_ext
->vstamp
);
925 aouthdr_int
->tsize
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->tsize
);
926 aouthdr_int
->dsize
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->dsize
);
927 aouthdr_int
->bsize
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->bsize
);
928 aouthdr_int
->entry
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->entry
);
929 aouthdr_int
->text_start
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->text_start
);
930 aouthdr_int
->data_start
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->data_start
);
932 aouthdr_int
->tagentries
= bfd_h_get_32(abfd
, (bfd_byte
*) aouthdr_ext
->tagentries
);
936 aouthdr_int
->o_toc
= bfd_h_get_32(abfd
, aouthdr_ext
->o_toc
);
937 aouthdr_int
->o_snentry
= bfd_h_get_16(abfd
, aouthdr_ext
->o_snentry
);
938 aouthdr_int
->o_sntext
= bfd_h_get_16(abfd
, aouthdr_ext
->o_sntext
);
939 aouthdr_int
->o_sndata
= bfd_h_get_16(abfd
, aouthdr_ext
->o_sndata
);
940 aouthdr_int
->o_sntoc
= bfd_h_get_16(abfd
, aouthdr_ext
->o_sntoc
);
941 aouthdr_int
->o_snloader
= bfd_h_get_16(abfd
, aouthdr_ext
->o_snloader
);
942 aouthdr_int
->o_snbss
= bfd_h_get_16(abfd
, aouthdr_ext
->o_snbss
);
943 aouthdr_int
->o_algntext
= bfd_h_get_16(abfd
, aouthdr_ext
->o_algntext
);
944 aouthdr_int
->o_algndata
= bfd_h_get_16(abfd
, aouthdr_ext
->o_algndata
);
945 aouthdr_int
->o_modtype
= bfd_h_get_16(abfd
, aouthdr_ext
->o_modtype
);
946 aouthdr_int
->o_maxstack
= bfd_h_get_32(abfd
, aouthdr_ext
->o_maxstack
);
951 DEFUN(coff_swap_aouthdr_out
,(abfd
, in
, out
),
956 struct internal_aouthdr
*aouthdr_in
= (struct internal_aouthdr
*)in
;
957 AOUTHDR
*aouthdr_out
= (AOUTHDR
*)out
;
958 bfd_h_put_16(abfd
, aouthdr_in
->magic
, (bfd_byte
*) aouthdr_out
->magic
);
959 bfd_h_put_16(abfd
, aouthdr_in
->vstamp
, (bfd_byte
*) aouthdr_out
->vstamp
);
960 bfd_h_put_32(abfd
, aouthdr_in
->tsize
, (bfd_byte
*) aouthdr_out
->tsize
);
961 bfd_h_put_32(abfd
, aouthdr_in
->dsize
, (bfd_byte
*) aouthdr_out
->dsize
);
962 bfd_h_put_32(abfd
, aouthdr_in
->bsize
, (bfd_byte
*) aouthdr_out
->bsize
);
963 bfd_h_put_32(abfd
, aouthdr_in
->entry
, (bfd_byte
*) aouthdr_out
->entry
);
964 bfd_h_put_32(abfd
, aouthdr_in
->text_start
,
965 (bfd_byte
*) aouthdr_out
->text_start
);
966 bfd_h_put_32(abfd
, aouthdr_in
->data_start
, (bfd_byte
*) aouthdr_out
->data_start
);
968 bfd_h_put_32(abfd
, aouthdr_in
->tagentries
, (bfd_byte
*) aouthdr_out
->tagentries
);
970 return sizeof(AOUTHDR
);
974 DEFUN(coff_swap_scnhdr_in
,(abfd
, scnhdr_ext
, scnhdr_int
),
976 SCNHDR
*scnhdr_ext AND
977 struct internal_scnhdr
*scnhdr_int
)
979 memcpy(scnhdr_int
->s_name
, scnhdr_ext
->s_name
, sizeof(scnhdr_int
->s_name
));
980 scnhdr_int
->s_vaddr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_vaddr
);
981 scnhdr_int
->s_paddr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_paddr
);
982 scnhdr_int
->s_size
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_size
);
984 scnhdr_int
->s_scnptr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_scnptr
);
985 scnhdr_int
->s_relptr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_relptr
);
986 scnhdr_int
->s_lnnoptr
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_lnnoptr
);
987 scnhdr_int
->s_flags
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_flags
);
989 scnhdr_int
->s_nreloc
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
990 scnhdr_int
->s_nlnno
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
992 scnhdr_int
->s_nreloc
= bfd_h_get_16(abfd
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
993 scnhdr_int
->s_nlnno
= bfd_h_get_16(abfd
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
996 scnhdr_int
->s_align
= bfd_h_get_32(abfd
, (bfd_byte
*) scnhdr_ext
->s_align
);
1001 DEFUN(coff_swap_scnhdr_out
,(abfd
, in
, out
),
1006 struct internal_scnhdr
*scnhdr_int
= (struct internal_scnhdr
*)in
;
1007 SCNHDR
*scnhdr_ext
= (SCNHDR
*)out
;
1008 memcpy(scnhdr_ext
->s_name
, scnhdr_int
->s_name
, sizeof(scnhdr_int
->s_name
));
1009 PUTWORD(abfd
, scnhdr_int
->s_vaddr
, (bfd_byte
*) scnhdr_ext
->s_vaddr
);
1010 PUTWORD(abfd
, scnhdr_int
->s_paddr
, (bfd_byte
*) scnhdr_ext
->s_paddr
);
1011 PUTWORD(abfd
, scnhdr_int
->s_size
, (bfd_byte
*) scnhdr_ext
->s_size
);
1012 PUTWORD(abfd
, scnhdr_int
->s_scnptr
, (bfd_byte
*) scnhdr_ext
->s_scnptr
);
1013 PUTWORD(abfd
, scnhdr_int
->s_relptr
, (bfd_byte
*) scnhdr_ext
->s_relptr
);
1014 PUTWORD(abfd
, scnhdr_int
->s_lnnoptr
, (bfd_byte
*) scnhdr_ext
->s_lnnoptr
);
1015 PUTWORD(abfd
, scnhdr_int
->s_flags
, (bfd_byte
*) scnhdr_ext
->s_flags
);
1017 PUTWORD(abfd
, scnhdr_int
->s_nlnno
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
1018 PUTWORD(abfd
, scnhdr_int
->s_nreloc
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
1020 PUTHALF(abfd
, scnhdr_int
->s_nlnno
, (bfd_byte
*) scnhdr_ext
->s_nlnno
);
1021 PUTHALF(abfd
, scnhdr_int
->s_nreloc
, (bfd_byte
*) scnhdr_ext
->s_nreloc
);
1025 PUTWORD(abfd
, scnhdr_int
->s_align
, (bfd_byte
*) scnhdr_ext
->s_align
);
1027 return sizeof(SCNHDR
);
1032 initialize a section structure with information peculiar to this
1033 particular implementation of coff
1037 DEFUN(coff_new_section_hook
,(abfd
, section
),
1041 section
->alignment_power
= abfd
->xvec
->align_power_min
;
1042 /* Allocate aux records for section symbols, to store size and
1045 @@ Shouldn't use constant multiplier here! */
1046 coffsymbol (section
->symbol
)->native
=
1047 (combined_entry_type
*) bfd_zalloc (abfd
,
1048 sizeof (combined_entry_type
) * 10);
1052 static asection bfd_debug_section
= { "*DEBUG*" };
1054 /* Take a section header read from a coff file (in HOST byte order),
1055 and make a BFD "section" out of it. */
1057 DEFUN(make_a_section_from_file
,(abfd
, hdr
, target_index
),
1059 struct internal_scnhdr
*hdr AND
1060 unsigned int target_index
)
1062 asection
*return_section
;
1065 /* Assorted wastage to null-terminate the name, thanks AT&T! */
1066 name
= bfd_alloc(abfd
, sizeof (hdr
->s_name
)+1);
1068 bfd_error
= no_memory
;
1071 strncpy(name
, (char *) &hdr
->s_name
[0], sizeof (hdr
->s_name
));
1072 name
[sizeof (hdr
->s_name
)] = 0;
1074 return_section
= bfd_make_section(abfd
, name
);
1075 #ifdef TWO_DATA_SECS
1076 /* On SCO a file created by the Microsoft assembler can have two
1077 .data sections. We use .data2 for the second one. */
1078 if (return_section
== NULL
&& strcmp(name
, _DATA
) == 0)
1079 return_section
= bfd_make_section(abfd
, ".data2");
1080 #endif /* TWO_DATA_SECS */
1081 if (return_section
== NULL
)
1084 /* s_paddr is presumed to be = to s_vaddr */
1086 return_section
->vma
= hdr
->s_vaddr
;
1087 return_section
->_raw_size
= hdr
->s_size
;
1088 return_section
->filepos
= hdr
->s_scnptr
;
1089 return_section
->rel_filepos
= hdr
->s_relptr
;
1090 return_section
->reloc_count
= hdr
->s_nreloc
;
1093 /* FIXME, use a temp var rather than alignment_power */
1094 return_section
->alignment_power
= hdr
->s_align
;
1097 for (i
= 0; i
< 32; i
++) {
1098 if ((1 << i
) >= (int) (return_section
->alignment_power
)) {
1099 return_section
->alignment_power
= i
;
1106 return_section
->line_filepos
= hdr
->s_lnnoptr
;
1108 return_section->linesize = hdr->s_nlnno * sizeof (struct lineno);
1111 return_section
->lineno_count
= hdr
->s_nlnno
;
1112 return_section
->userdata
= NULL
;
1113 return_section
->next
= (asection
*) NULL
;
1114 return_section
->flags
= styp_to_sec_flags(hdr
->s_flags
);
1116 return_section
->target_index
= target_index
;
1118 if (hdr
->s_nreloc
!= 0)
1119 return_section
->flags
|= SEC_RELOC
;
1120 /* FIXME: should this check 'hdr->s_size > 0' */
1121 if (hdr
->s_scnptr
!= 0)
1122 return_section
->flags
|= SEC_HAS_CONTENTS
;
1126 DEFUN(coff_mkobject
,(abfd
),
1129 abfd
->tdata
.coff_obj_data
= (struct coff_tdata
*)bfd_zalloc (abfd
,sizeof(coff_data_type
));
1130 if (abfd
->tdata
.coff_obj_data
== 0){
1131 bfd_error
= no_memory
;
1134 coff_data(abfd
)->relocbase
= 0;
1135 /* make_abs_section(abfd);*/
1141 DEFUN(coff_real_object_p
,(abfd
, nscns
, internal_f
, internal_a
),
1144 struct internal_filehdr
*internal_f AND
1145 struct internal_aouthdr
*internal_a
)
1147 coff_data_type
*coff
;
1148 enum bfd_architecture arch
;
1150 size_t readsize
; /* length of file_info */
1151 SCNHDR
*external_sections
;
1153 /* Build a play area */
1154 if (coff_mkobject(abfd
) != true)
1157 coff
= coff_data(abfd
);
1160 external_sections
= (SCNHDR
*)bfd_alloc(abfd
, readsize
= (nscns
* SCNHSZ
));
1162 if (bfd_read((PTR
)external_sections
, 1, readsize
, abfd
) != readsize
) {
1167 /* Now copy data as required; construct all asections etc */
1168 coff
->symbol_index_slew
= 0;
1170 coff
->raw_syment_count
= 0;
1171 coff
->raw_linenos
= 0;
1172 coff
->raw_syments
= 0;
1173 coff
->sym_filepos
=0;
1174 coff
->flags
= internal_f
->f_flags
;
1177 for (i
= 0; i
< nscns
; i
++) {
1178 struct internal_scnhdr tmp
;
1179 coff_swap_scnhdr_in(abfd
, external_sections
+ i
, &tmp
);
1180 make_a_section_from_file(abfd
,&tmp
, i
+1);
1184 /* make_abs_section(abfd);*/
1186 /* Determine the machine architecture and type. */
1188 switch (internal_f
->f_magic
) {
1191 arch
= bfd_arch_i386
;
1196 #ifdef A29K_MAGIC_BIG
1197 case A29K_MAGIC_BIG
:
1198 case A29K_MAGIC_LITTLE
:
1199 arch
= bfd_arch_a29k
;
1208 arch
= bfd_arch_mips
;
1216 arch
= bfd_arch_m68k
;
1224 arch
= bfd_arch_m88k
;
1230 arch
= bfd_arch_z8k
;
1231 switch (internal_f
->f_flags
& F_MACHMASK
)
1234 machine
= bfd_mach_z8001
;
1237 machine
= bfd_mach_z8002
;
1248 arch
= bfd_arch_i960
;
1249 switch (F_I960TYPE
& internal_f
->f_flags
)
1253 machine
= bfd_mach_i960_core
;
1256 machine
= bfd_mach_i960_kb_sb
;
1259 machine
= bfd_mach_i960_mc
;
1262 machine
= bfd_mach_i960_xa
;
1265 machine
= bfd_mach_i960_ca
;
1268 machine
= bfd_mach_i960_ka_sa
;
1279 arch
= bfd_arch_rs6000
;
1286 arch
= bfd_arch_we32k
;
1293 arch
= bfd_arch_h8300
;
1298 default: /* Unreadable input file type */
1299 arch
= bfd_arch_obscure
;
1303 bfd_default_set_arch_mach(abfd
, arch
, machine
);
1304 if (!(internal_f
->f_flags
& F_RELFLG
))
1305 abfd
->flags
|= HAS_RELOC
;
1306 if ((internal_f
->f_flags
& F_EXEC
))
1307 abfd
->flags
|= EXEC_P
;
1308 if (!(internal_f
->f_flags
& F_LNNO
))
1309 abfd
->flags
|= HAS_LINENO
;
1310 if (!(internal_f
->f_flags
& F_LSYMS
))
1311 abfd
->flags
|= HAS_LOCALS
;
1314 bfd_get_symcount(abfd
) = internal_f
->f_nsyms
;
1315 if (internal_f
->f_nsyms
)
1316 abfd
->flags
|= HAS_SYMS
;
1318 coff
->sym_filepos
= internal_f
->f_symptr
;
1320 /* These members communicate important constants about the symbol table
1321 to GDB's symbol-reading code. These `constants' unfortunately vary
1322 from coff implementation to implementation... */
1323 #ifndef NO_COFF_SYMBOLS
1324 coff
->local_n_btmask
= N_BTMASK
;
1325 coff
->local_n_btshft
= N_BTSHFT
;
1326 coff
->local_n_tmask
= N_TMASK
;
1327 coff
->local_n_tshift
= N_TSHIFT
;
1328 coff
->local_symesz
= SYMESZ
;
1329 coff
->local_auxesz
= AUXESZ
;
1330 coff
->local_linesz
= LINESZ
;
1333 coff
->symbols
= (coff_symbol_type
*) NULL
;
1334 bfd_get_start_address(abfd
) = internal_f
->f_opthdr
? internal_a
->entry
: 0;
1338 bfd_release(abfd
, coff
);
1339 return (bfd_target
*)NULL
;
1343 DEFUN(coff_object_p
,(abfd
),
1349 struct internal_filehdr internal_f
;
1350 struct internal_aouthdr internal_a
;
1352 bfd_error
= system_call_error
;
1354 /* figure out how much to read */
1355 if (bfd_read((PTR
) &filehdr
, 1, FILHSZ
, abfd
) != FILHSZ
)
1358 bfd_swap_filehdr_in(abfd
, &filehdr
, &internal_f
);
1360 if (BADMAG(internal_f
)) {
1361 bfd_error
= wrong_format
;
1364 nscns
=internal_f
.f_nscns
;
1366 if (internal_f
.f_opthdr
) {
1367 if (bfd_read((PTR
) &opthdr
, 1,AOUTSZ
, abfd
) != AOUTSZ
) {
1370 bfd_swap_aouthdr_in(abfd
, (char *)&opthdr
, (char *)&internal_a
);
1373 /* Seek past the opt hdr stuff */
1374 bfd_seek(abfd
, (file_ptr
) (internal_f
.f_opthdr
+ FILHSZ
), SEEK_SET
);
1376 /* if the optional header is NULL or not the correct size then
1377 quit; the only difference I can see between m88k dgux headers (MC88DMAGIC)
1378 and Intel 960 readwrite headers (I960WRMAGIC) is that the
1379 optional header is of a different size.
1381 But the mips keeps extra stuff in it's opthdr, so dont check
1385 #if defined(M88) || defined(I960)
1386 if (internal_f
.f_opthdr
!= 0 && AOUTSZ
!= internal_f
.f_opthdr
)
1387 return (bfd_target
*)NULL
;
1390 return coff_real_object_p(abfd
, nscns
, &internal_f
, &internal_a
);
1395 #ifndef NO_COFF_LINENOS
1398 DEFUN(coff_count_linenumbers
,(abfd
),
1401 unsigned int limit
= bfd_get_symcount(abfd
);
1405 asection
*s
= abfd
->sections
->output_section
;
1407 BFD_ASSERT(s
->lineno_count
== 0);
1413 for (p
= abfd
->outsymbols
, i
= 0; i
< limit
; i
++, p
++) {
1414 asymbol
*q_maybe
= *p
;
1415 if (q_maybe
->the_bfd
->xvec
->flavour
== bfd_target_coff_flavour
) {
1416 coff_symbol_type
*q
= coffsymbol(q_maybe
);
1419 This symbol has a linenumber, increment the owning
1420 section's linenumber count
1422 alent
*l
= q
->lineno
;
1423 q
->symbol
.section
->output_section
->lineno_count
++;
1425 while (l
->line_number
) {
1426 q
->symbol
.section
->output_section
->lineno_count
++;
1434 #endif /* NO_COFF_LINENOS */
1436 #ifndef NO_COFF_SYMBOLS
1439 Takes a bfd and a symbol, returns a pointer to the coff specific area
1440 of the symbol if there is one.
1442 static coff_symbol_type
*
1443 DEFUN(coff_symbol_from
,(ignore_abfd
, symbol
),
1444 bfd
*ignore_abfd AND
1447 if (symbol
->the_bfd
->xvec
->flavour
!= bfd_target_coff_flavour
)
1448 return (coff_symbol_type
*)NULL
;
1450 if (symbol
->the_bfd
->tdata
.coff_obj_data
== (coff_data_type
*)NULL
)
1451 return (coff_symbol_type
*)NULL
;
1453 return (coff_symbol_type
*) symbol
;
1459 DEFUN(fixup_symbol_value
,(coff_symbol_ptr
, syment
),
1460 coff_symbol_type
*coff_symbol_ptr AND
1461 struct internal_syment
*syment
)
1464 /* Normalize the symbol flags */
1465 if (coff_symbol_ptr
->symbol
.section
== &bfd_com_section
) {
1466 /* a common symbol is undefined with a value */
1467 syment
->n_scnum
= N_UNDEF
;
1468 syment
->n_value
= coff_symbol_ptr
->symbol
.value
;
1470 else if (coff_symbol_ptr
->symbol
.flags
& BSF_DEBUGGING
) {
1471 syment
->n_value
= coff_symbol_ptr
->symbol
.value
;
1473 else if (coff_symbol_ptr
->symbol
.section
== & bfd_und_section
) {
1474 syment
->n_scnum
= N_UNDEF
;
1475 syment
->n_value
= 0;
1478 if (coff_symbol_ptr
->symbol
.section
) {
1480 coff_symbol_ptr
->symbol
.section
->output_section
->target_index
;
1483 coff_symbol_ptr
->symbol
.value
+
1484 coff_symbol_ptr
->symbol
.section
->output_offset
+
1485 coff_symbol_ptr
->symbol
.section
->output_section
->vma
;
1489 /* This can happen, but I don't know why yet (steve@cygnus.com) */
1490 syment
->n_scnum
= N_ABS
;
1491 syment
->n_value
= coff_symbol_ptr
->symbol
.value
;
1496 /* run through all the symbols in the symbol table and work out what
1497 their indexes into the symbol table will be when output
1499 Coff requires that each C_FILE symbol points to the next one in the
1500 chain, and that the last one points to the first external symbol. We
1505 DEFUN(coff_renumber_symbols
,(bfd_ptr
),
1508 unsigned int symbol_count
= bfd_get_symcount(bfd_ptr
);
1509 asymbol
**symbol_ptr_ptr
= bfd_ptr
->outsymbols
;
1510 unsigned int native_index
= 0;
1511 struct internal_syment
*last_file
= (struct internal_syment
*)NULL
;
1512 unsigned int symbol_index
;
1514 /* COFF demands that undefined symbols come after all other symbols.
1515 Since we don't need to impose this extra knowledge on all our client
1516 programs, deal with that here. Sort the symbol table; just move the
1517 undefined symbols to the end, leaving the rest alone. */
1518 /* @@ Do we have some condition we could test for, so we don't always
1519 have to do this? I don't think relocatability is quite right, but
1520 I'm not certain. [raeburn:19920508.1711EST] */
1525 newsyms
= (asymbol
**) bfd_alloc_by_size_t (bfd_ptr
,
1527 * (symbol_count
+ 1));
1528 bfd_ptr
->outsymbols
= newsyms
;
1529 for (i
= 0; i
< symbol_count
; i
++)
1530 if (symbol_ptr_ptr
[i
]->section
!= &bfd_und_section
)
1531 *newsyms
++ = symbol_ptr_ptr
[i
];
1532 for (i
= 0; i
< symbol_count
; i
++)
1533 if (symbol_ptr_ptr
[i
]->section
== &bfd_und_section
)
1534 *newsyms
++ = symbol_ptr_ptr
[i
];
1535 *newsyms
= (asymbol
*) NULL
;
1536 symbol_ptr_ptr
= bfd_ptr
->outsymbols
;
1539 for (symbol_index
= 0; symbol_index
< symbol_count
; symbol_index
++)
1541 coff_symbol_type
*coff_symbol_ptr
= coff_symbol_from(bfd_ptr
, symbol_ptr_ptr
[symbol_index
]);
1542 if (coff_symbol_ptr
&& coff_symbol_ptr
->native
) {
1543 combined_entry_type
*s
= coff_symbol_ptr
->native
;
1546 if (s
->u
.syment
.n_sclass
== C_FILE
)
1548 if (last_file
!= (struct internal_syment
*)NULL
) {
1549 last_file
->n_value
= native_index
;
1551 last_file
= &(s
->u
.syment
);
1555 /* Modify the symbol values according to their section and
1558 fixup_symbol_value(coff_symbol_ptr
, &(s
->u
.syment
));
1560 for (i
= 0; i
< s
->u
.syment
.n_numaux
+ 1; i
++) {
1561 s
[i
].offset
= native_index
++;
1568 obj_conv_table_size (bfd_ptr
) = native_index
;
1573 Run thorough the symbol table again, and fix it so that all pointers to
1574 entries are changed to the entries' index in the output symbol table.
1578 DEFUN(coff_mangle_symbols
,(bfd_ptr
),
1581 unsigned int symbol_count
= bfd_get_symcount(bfd_ptr
);
1582 asymbol
**symbol_ptr_ptr
= bfd_ptr
->outsymbols
;
1583 unsigned int symbol_index
;
1585 for (symbol_index
= 0; symbol_index
< symbol_count
; symbol_index
++)
1587 coff_symbol_type
*coff_symbol_ptr
=
1588 coff_symbol_from(bfd_ptr
, symbol_ptr_ptr
[symbol_index
]);
1590 if (coff_symbol_ptr
&& coff_symbol_ptr
->native
) {
1592 combined_entry_type
*s
= coff_symbol_ptr
->native
;
1594 for (i
= 0; i
< s
->u
.syment
.n_numaux
; i
++) {
1595 combined_entry_type
*a
= s
+ i
+ 1;
1597 a
->u
.auxent
.x_sym
.x_tagndx
.l
=
1598 a
->u
.auxent
.x_sym
.x_tagndx
.p
->offset
;
1602 a
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
=
1603 a
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.p
->offset
;
1613 static int string_size
;
1615 DEFUN(coff_fix_symbol_name
,(ignore_abfd
, symbol
, native
),
1616 bfd
*ignore_abfd AND
1618 combined_entry_type
*native
)
1620 unsigned int name_length
;
1621 union internal_auxent
*auxent
;
1622 char * name
= ( char *)(symbol
->name
);
1624 if (name
== (char *) NULL
) {
1625 /* coff symbols always have names, so we'll make one up */
1626 symbol
->name
= "strange";
1627 name
= (char *)symbol
->name
;
1629 name_length
= strlen(name
);
1631 if (native
->u
.syment
.n_sclass
== C_FILE
) {
1632 strncpy(native
->u
.syment
._n
._n_name
, ".file", SYMNMLEN
);
1633 auxent
= &(native
+1)->u
.auxent
;
1635 #ifdef COFF_LONG_FILENAMES
1636 if (name_length
<= FILNMLEN
) {
1637 strncpy(auxent
->x_file
.x_fname
, name
, FILNMLEN
);
1640 auxent
->x_file
.x_n
.x_offset
= string_size
+ 4;
1641 auxent
->x_file
.x_n
.x_zeroes
= 0;
1642 string_size
+= name_length
+ 1;
1645 strncpy(auxent
->x_file
.x_fname
, name
, FILNMLEN
);
1646 if (name_length
> FILNMLEN
) {
1647 name
[FILNMLEN
] = '\0';
1652 { /* NOT A C_FILE SYMBOL */
1653 if (name_length
<= SYMNMLEN
) {
1654 /* This name will fit into the symbol neatly */
1655 strncpy(native
->u
.syment
._n
._n_name
, symbol
->name
, SYMNMLEN
);
1658 native
->u
.syment
._n
._n_n
._n_offset
= string_size
+ 4;
1659 native
->u
.syment
._n
._n_n
._n_zeroes
= 0;
1660 string_size
+= name_length
+ 1;
1668 DEFUN(coff_write_symbol
,(abfd
, symbol
, native
, written
),
1671 combined_entry_type
*native AND
1672 unsigned int written
)
1674 unsigned int numaux
= native
->u
.syment
.n_numaux
;
1675 int type
= native
->u
.syment
.n_type
;
1676 int class = native
->u
.syment
.n_sclass
;
1680 /* @@ bfd_debug_section isn't accessible outside this file, but we know
1681 that C_FILE symbols belong there. So move them. */
1682 if (native
->u
.syment
.n_sclass
== C_FILE
)
1683 symbol
->section
= &bfd_debug_section
;
1685 if (symbol
->section
== &bfd_abs_section
)
1687 native
->u
.syment
.n_scnum
= N_ABS
;
1689 else if (symbol
->section
== &bfd_debug_section
)
1691 native
->u
.syment
.n_scnum
= N_DEBUG
;
1693 else if (symbol
->section
== &bfd_und_section
)
1695 native
->u
.syment
.n_scnum
= N_UNDEF
;
1699 native
->u
.syment
.n_scnum
=
1700 symbol
->section
->output_section
->target_index
;
1704 coff_fix_symbol_name(abfd
, symbol
, native
);
1706 coff_swap_sym_out(abfd
, &native
->u
.syment
, &buf
);
1707 bfd_write((PTR
)& buf
, 1, SYMESZ
, abfd
);
1708 for (j
= 0; j
< native
->u
.syment
.n_numaux
; j
++)
1711 coff_swap_aux_out(abfd
,
1712 &( (native
+ j
+ 1)->u
.auxent
), type
, class, &buf1
);
1713 bfd_write((PTR
) (&buf1
), 1, AUXESZ
, abfd
);
1716 Reuse somewhere in the symbol to keep the index
1718 set_index(symbol
, written
);
1719 return written
+ 1 + numaux
;
1724 DEFUN(coff_write_alien_symbol
,(abfd
, symbol
, written
),
1727 unsigned int written
)
1730 This symbol has been created by the loader, or come from a non
1731 coff format. It has no native element to inherit, make our
1734 combined_entry_type
*native
;
1735 combined_entry_type dummy
;
1737 native
->u
.syment
.n_type
= T_NULL
;
1739 native
->u
.syment
.n_flags
= 0;
1741 if (symbol
->section
== &bfd_und_section
)
1743 native
->u
.syment
.n_scnum
= N_UNDEF
;
1744 native
->u
.syment
.n_value
= symbol
->value
;
1746 else if (symbol
->section
== &bfd_com_section
)
1748 native
->u
.syment
.n_scnum
= N_UNDEF
;
1749 native
->u
.syment
.n_value
= symbol
->value
;
1753 else if (symbol
->flags
& BSF_DEBUGGING
) {
1755 remove name so it doesn't take up any space
1760 native
->u
.syment
.n_scnum
= symbol
->section
->output_section
->target_index
;
1761 native
->u
.syment
.n_value
= symbol
->value
+
1762 symbol
->section
->output_section
->vma
+
1763 symbol
->section
->output_offset
;
1765 /* Copy the any flags from the the file hdr into the symbol */
1767 coff_symbol_type
*c
= coff_symbol_from(abfd
, symbol
);
1768 if (c
!= (coff_symbol_type
*)NULL
) {
1769 native
->u
.syment
.n_flags
= c
->symbol
.the_bfd
->flags
;
1776 native
->u
.syment
.pad1
[0] = 0;
1777 native
->u
.syment
.pad1
[0] = 0;
1780 native
->u
.syment
.n_type
= 0;
1781 if (symbol
->flags
& BSF_LOCAL
)
1782 native
->u
.syment
.n_sclass
= C_STAT
;
1784 native
->u
.syment
.n_sclass
= C_EXT
;
1785 native
->u
.syment
.n_numaux
= 0;
1787 return coff_write_symbol(abfd
, symbol
, native
, written
);
1791 DEFUN(coff_write_native_symbol
,(abfd
, symbol
, written
),
1793 coff_symbol_type
*symbol AND
1794 unsigned int written
)
1797 Does this symbol have an ascociated line number - if so then
1798 make it remember this symbol index. Also tag the auxent of
1799 this symbol to point to the right place in the lineno table
1801 combined_entry_type
*native
= symbol
->native
;
1803 alent
*lineno
= symbol
->lineno
;
1805 if (lineno
&& !symbol
->done_lineno
) {
1806 unsigned int count
= 0;
1807 lineno
[count
].u
.offset
= written
;
1808 if (native
->u
.syment
.n_numaux
) {
1809 union internal_auxent
*a
= &((native
+1)->u
.auxent
);
1811 a
->x_sym
.x_fcnary
.x_fcn
.x_lnnoptr
=
1812 symbol
->symbol
.section
->output_section
->moving_line_filepos
;
1815 And count and relocate all other linenumbers
1819 while (lineno
[count
].line_number
) {
1822 I've been told this, but still need proof:
1823 > The second bug is also in `bfd/coffcode.h'. This bug causes the linker to screw
1824 > up the pc-relocations for all the line numbers in COFF code. This bug isn't
1825 > only specific to A29K implementations, but affects all systems using COFF
1826 > format binaries. Note that in COFF object files, the line number core offsets
1827 > output by the assembler are relative to the start of each procedure, not
1828 > to the start of the .text section. This patch relocates the line numbers
1829 > relative to the `native->u.syment.n_value' instead of the section virtual
1830 > address. modular!olson@cs.arizona.edu (Jon Olson)
1832 lineno
[count
].u
.offset
+= native
->u
.syment
.n_value
;
1835 lineno
[count
].u
.offset
+=
1836 symbol
->symbol
.section
->output_section
->vma
+
1837 symbol
->symbol
.section
->output_offset
;
1841 symbol
->done_lineno
= true;
1843 symbol
->symbol
.section
->output_section
->moving_line_filepos
+=
1846 return coff_write_symbol(abfd
, &( symbol
->symbol
), native
,written
);
1850 DEFUN(coff_write_symbols
,(abfd
),
1854 unsigned int limit
= bfd_get_symcount(abfd
);
1855 unsigned int written
= 0;
1862 /* Seek to the right place */
1863 bfd_seek(abfd
, obj_sym_filepos(abfd
), SEEK_SET
);
1865 /* Output all the symbols we have */
1868 for (p
= abfd
->outsymbols
, i
= 0; i
< limit
; i
++, p
++)
1870 asymbol
*symbol
= *p
;
1871 coff_symbol_type
*c_symbol
= coff_symbol_from(abfd
, symbol
);
1873 if (c_symbol
== (coff_symbol_type
*) NULL
||
1874 c_symbol
->native
== (combined_entry_type
*)NULL
)
1876 written
= coff_write_alien_symbol(abfd
, symbol
, written
);
1880 written
= coff_write_native_symbol(abfd
, c_symbol
, written
);
1885 bfd_get_symcount(abfd
) = written
;
1887 /* Now write out strings */
1889 if (string_size
!= 0)
1891 unsigned int size
= string_size
+ 4;
1894 bfd_h_put_32(abfd
, size
, buffer
);
1895 bfd_write((PTR
) buffer
, 1, sizeof(buffer
), abfd
);
1896 for (p
= abfd
->outsymbols
, i
= 0;
1901 size_t name_length
= strlen(q
->name
);
1903 coff_symbol_type
* c_symbol
= coff_symbol_from(abfd
, q
);
1904 maxlen
= ((c_symbol
!= NULL
&& c_symbol
->native
!= NULL
) &&
1905 (c_symbol
->native
->u
.syment
.n_sclass
== C_FILE
)) ?
1906 FILNMLEN
: SYMNMLEN
;
1908 if (name_length
> maxlen
) {
1909 bfd_write((PTR
) (q
->name
), 1, name_length
+ 1, abfd
);
1914 /* We would normally not write anything here, but we'll write
1915 out 4 so that any stupid coff reader which tries to read
1916 the string table even when there isn't one won't croak.
1919 uint32e_type size
= 4;
1921 bfd_write((PTR
)&size
, 1, sizeof(size
), abfd
);
1930 To write relocations, all the back end does is step though the
1931 canonical relocation table, and create an
1932 @code{internal_reloc}. The symbol index to use is removed from
1933 the @code{offset} field in the symbol table supplied, the
1934 address comes directly from the sum of the section base
1935 address and the relocation offset and the type is dug directly
1936 from the howto field. Then the @code{internal_reloc} is
1937 swapped into the shape of an @code{external_reloc} and written
1943 DEFUN(coff_write_relocs
,(abfd
),
1947 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
) {
1949 struct external_reloc dst
;
1951 arelent
**p
= s
->orelocation
;
1952 bfd_seek(abfd
, s
->rel_filepos
, SEEK_SET
);
1953 for (i
= 0; i
< s
->reloc_count
; i
++) {
1954 struct internal_reloc n
;
1956 memset((PTR
)&n
, 0, sizeof(n
));
1958 n
.r_vaddr
= q
->address
+ s
->vma
;
1959 /* The 29k const/consth reloc pair is a real kludge - the consth
1960 part doesn't have a symbol - it has an offset. So rebuilt
1963 if (q
->howto
->type
== R_IHCONST
)
1964 n
.r_symndx
= q
->addend
;
1971 if (q
->sym_ptr_ptr
== bfd_abs_section
.symbol_ptr_ptr
)
1973 /* This is a relocation relative to the absolute symbol */
1978 n
.r_symndx
= get_index((*(q
->sym_ptr_ptr
)));
1979 /* Take notice if the symbol reloc points to a symbol we don't have
1980 in our symbol table. What should we do for this?? */
1981 if (n
.r_symndx
> obj_conv_table_size (abfd
))
1989 /* Work out reloc type from what is required */
1990 SELECT_RELOC(n
.r_type
, q
->howto
);
1992 n
.r_type
= q
->howto
->type
;
1994 coff_swap_reloc_out(abfd
, &n
, &dst
);
1995 bfd_write((PTR
) &dst
, 1, RELSZ
, abfd
);
1999 #endif /* NO_COFF_SYMBOLS */
2001 #ifndef NO_COFF_LINENOS
2004 DEFUN(coff_write_linenumbers
,(abfd
),
2008 for (s
= abfd
->sections
; s
!= (asection
*) NULL
; s
= s
->next
) {
2009 if (s
->lineno_count
) {
2010 asymbol
**q
= abfd
->outsymbols
;
2011 bfd_seek(abfd
, s
->line_filepos
, SEEK_SET
);
2012 /* Find all the linenumbers in this section */
2015 alent
*l
= BFD_SEND(p
->the_bfd
, _get_lineno
, (p
->the_bfd
, p
));
2017 /* Found a linenumber entry, output */
2018 struct internal_lineno out
;
2020 memset( (PTR
)&out
, 0, sizeof(out
));
2022 out
.l_addr
.l_symndx
= l
->u
.offset
;
2023 coff_swap_lineno_out(abfd
, &out
, &buff
);
2024 bfd_write((PTR
) &buff
, 1, LINESZ
, abfd
);
2026 while (l
->line_number
) {
2027 out
.l_lnno
= l
->line_number
;
2028 out
.l_addr
.l_symndx
= l
->u
.offset
;
2029 coff_swap_lineno_out(abfd
, &out
, &buff
);
2030 bfd_write((PTR
) &buff
, 1, LINESZ
, abfd
);
2041 DEFUN(coff_get_lineno
,(ignore_abfd
, symbol
),
2042 bfd
*ignore_abfd AND
2045 return coffsymbol(symbol
)->lineno
;
2048 #endif /* NO_COFF_LINENOS */
2051 coff_make_empty_symbol(abfd
)
2054 coff_symbol_type
*new = (coff_symbol_type
*) bfd_alloc(abfd
, sizeof(coff_symbol_type
));
2056 bfd_error
= no_memory
;
2059 new->symbol
.section
= 0;
2061 new->lineno
= (alent
*) NULL
;
2062 new->done_lineno
= false;
2063 new->symbol
.the_bfd
= abfd
;
2064 return &new->symbol
;
2067 #ifndef NO_COFF_SYMBOLS
2070 DEFUN (coff_make_debug_symbol
, (abfd
, ptr
, sz
),
2075 coff_symbol_type
*new = (coff_symbol_type
*) bfd_alloc(abfd
, sizeof(coff_symbol_type
));
2077 bfd_error
= no_memory
;
2080 /* @@ This shouldn't be using a constant multiplier. */
2081 new->native
= (combined_entry_type
*) bfd_zalloc (abfd
, sizeof (combined_entry_type
) * 10);
2082 new->symbol
.section
= &bfd_debug_section
;
2083 new->lineno
= (alent
*) NULL
;
2084 new->done_lineno
= false;
2085 new->symbol
.the_bfd
= abfd
;
2086 return &new->symbol
;
2090 DEFUN(coff_print_symbol
,(ignore_abfd
, filep
, symbol
, how
),
2091 bfd
*ignore_abfd AND
2094 bfd_print_symbol_type how
)
2096 FILE *file
= (FILE *)filep
;
2098 case bfd_print_symbol_name
:
2099 fprintf(file
, "%s", symbol
->name
);
2101 case bfd_print_symbol_more
:
2102 fprintf(file
, "coff %lx %lx", (unsigned long) coffsymbol(symbol
)->native
,
2103 (unsigned long) coffsymbol(symbol
)->lineno
);
2105 case bfd_print_symbol_nm
:
2108 CONST
char *section_name
= symbol
->section
->name
;
2109 bfd_print_symbol_vandf((PTR
) file
, symbol
);
2112 fprintf(file
, " %-5s %s %s %s",
2114 coffsymbol(symbol
)->native
? "n" : "g",
2115 coffsymbol(symbol
)->lineno
? "l" : " ",
2121 case bfd_print_symbol_all
:
2122 /* Print out the symbols in a reasonable way */
2124 CONST
char *section_name
= symbol
->section
->name
;
2127 if (coffsymbol(symbol
)->native
)
2130 combined_entry_type
*combined
= coffsymbol(symbol
)->native
;
2131 combined_entry_type
*root
= obj_raw_syments(ignore_abfd
);
2133 fprintf(file
,"[%3d]",
2137 fprintf(file
, "(sc %2d)(fl%4x)(ty%3x)(sc%3d) nx(%d) %08x %s",
2138 combined
->u
.syment
.n_scnum
,
2139 combined
->u
.syment
.n_flags
,
2140 combined
->u
.syment
.n_type
,
2141 combined
->u
.syment
.n_sclass
,
2142 combined
->u
.syment
.n_numaux
,
2143 combined
->u
.syment
.n_value
,
2146 for (aux
= 0; aux
< combined
->u
.syment
.n_numaux
; aux
++)
2149 switch (combined
->u
.syment
.n_sclass
) {
2151 fprintf(file
, "File ");
2154 fprintf(file
, "AUX lnno %x size %x tagndx %x",
2155 combined
[aux
+1].u
.auxent
.x_sym
.x_misc
.x_lnsz
.x_lnno
,
2156 combined
[aux
+1].u
.auxent
.x_sym
.x_misc
.x_lnsz
.x_size
,
2157 combined
[aux
+1].u
.auxent
.x_sym
.x_tagndx
.l
);
2165 struct lineno_cache_entry
*l
= coffsymbol(symbol
)->lineno
;
2168 printf("\n%s :", l
->u
.sym
->name
);
2170 while (l
->line_number
)
2172 printf("\n%4d : %x",
2186 bfd_print_symbol_vandf((PTR
) file
, symbol
);
2187 fprintf(file
, " %-5s %s %s %s",
2189 coffsymbol(symbol
)->native
? "n" : "g",
2190 coffsymbol(symbol
)->lineno
? "l" : " ",
2199 #endif /* NO_COFF_SYMBOLS */
2201 /* Set flags and magic number of a coff file from architecture and machine
2202 type. Result is true if we can represent the arch&type, false if not. */
2205 DEFUN(coff_set_flags
,(abfd
, magicp
, flagsp
),
2207 unsigned *magicp AND
2208 unsigned short *flagsp
)
2210 switch (bfd_get_arch(abfd
)) {
2214 switch (bfd_get_mach(abfd
))
2216 case bfd_mach_z8001
:
2219 case bfd_mach_z8002
:
2233 *magicp
= I960ROMAGIC
;
2235 ((bfd_get_file_flags(abfd) & WP_TEXT) ? I960ROMAGIC :
2236 I960RWMAGIC); FIXME???
2238 switch (bfd_get_mach(abfd
)) {
2239 case bfd_mach_i960_core
:
2242 case bfd_mach_i960_kb_sb
:
2245 case bfd_mach_i960_mc
:
2248 case bfd_mach_i960_xa
:
2251 case bfd_mach_i960_ca
:
2254 case bfd_mach_i960_ka_sa
:
2267 *magicp
= MIPS_MAGIC_2
;
2273 *magicp
= I386MAGIC
;
2279 *magicp
= MC68MAGIC
;
2286 *magicp
= MC88OMAGIC
;
2291 case bfd_arch_h8300
:
2292 *magicp
= H8300MAGIC
;
2296 #ifdef A29K_MAGIC_BIG
2298 if (abfd
->xvec
->byteorder_big_p
)
2299 *magicp
= A29K_MAGIC_BIG
;
2301 *magicp
= A29K_MAGIC_LITTLE
;
2307 case bfd_arch_we32k
:
2308 *magicp
= WE32KMAGIC
;
2314 case bfd_arch_rs6000
:
2315 *magicp
= U802TOCMAGIC
;
2320 default: /* Unknown architecture */
2321 /* return false; -- fall through to "return false" below, to avoid
2322 "statement never reached" errors on the one below. */
2331 DEFUN(coff_set_arch_mach
,(abfd
, arch
, machine
),
2333 enum bfd_architecture arch AND
2334 unsigned long machine
)
2337 unsigned short dummy2
;
2338 bfd_default_set_arch_mach(abfd
, arch
, machine
);
2340 if (arch
!= bfd_arch_unknown
&&
2341 coff_set_flags(abfd
, &dummy1
, &dummy2
) != true)
2342 return false; /* We can't represent this type */
2343 return true; /* We're easy ... */
2347 /* Calculate the file position for each section. */
2350 DEFUN(coff_compute_section_file_positions
,(abfd
),
2354 asection
*previous
= (asection
*)NULL
;
2355 file_ptr sofar
= FILHSZ
;
2357 if (bfd_get_start_address(abfd
))
2359 /* A start address may have been added to the original file. In this
2360 case it will need an optional header to record it. */
2361 abfd
->flags
|= EXEC_P
;
2364 if (abfd
->flags
& EXEC_P
)
2367 sofar
+= abfd
->section_count
* SCNHSZ
;
2368 for (current
= abfd
->sections
;
2369 current
!= (asection
*)NULL
;
2370 current
= current
->next
) {
2372 /* Only deal with sections which have contents */
2373 if (!(current
->flags
& SEC_HAS_CONTENTS
))
2376 /* Align the sections in the file to the same boundary on
2377 which they are aligned in virtual memory. I960 doesn't
2378 do this (FIXME) so we can stay in sync with Intel. 960
2379 doesn't yet page from files... */
2382 /* make sure this section is aligned on the right boundary - by
2383 padding the previous section up if necessary */
2386 sofar
= BFD_ALIGN(sofar
, 1 << current
->alignment_power
);
2387 if (previous
!= (asection
*)NULL
) {
2388 previous
->_raw_size
+= sofar
- old_sofar
;
2393 /* FIXME, in demand paged files, the low order bits of the file
2394 offset must match the low order bits of the virtual address.
2395 "Low order" is apparently implementation defined. Add code
2396 here to round sofar up to match the virtual address. */
2398 current
->filepos
= sofar
;
2400 sofar
+= current
->_raw_size
;
2402 /* make sure that this section is of the right size too */
2404 sofar
= BFD_ALIGN(sofar
, 1 << current
->alignment_power
);
2405 current
->_raw_size
+= sofar
- old_sofar
;
2410 obj_relocbase(abfd
) = sofar
;
2413 #ifndef NO_COFF_SYMBOLS
2415 coff_section_symbol (abfd
, name
)
2419 asection
*sec
= bfd_make_section_old_way (abfd
, name
);
2421 combined_entry_type
*csym
;
2424 if (coff_symbol_from (abfd
, sym
))
2425 csym
= coff_symbol_from (abfd
, sym
)->native
;
2428 /* Make sure back-end COFF stuff is there. */
2432 coff_symbol_type sym
;
2433 /* @@FIXME This shouldn't use a fixed size!! */
2434 combined_entry_type e
[10];
2437 f
= (struct foo
*) bfd_alloc_by_size_t (abfd
, sizeof (*f
));
2438 memset ((char *) f
, 0, sizeof (*f
));
2439 coff_symbol_from (abfd
, sym
)->native
= csym
= f
->e
;
2441 csym
[0].u
.syment
.n_sclass
= C_STAT
;
2442 csym
[0].u
.syment
.n_numaux
= 1;
2443 /* SF_SET_STATICS (sym); @@ ??? */
2446 csym
[1].u
.auxent
.x_scn
.x_scnlen
= sec
->_raw_size
;
2447 csym
[1].u
.auxent
.x_scn
.x_nreloc
= sec
->reloc_count
;
2448 csym
[1].u
.auxent
.x_scn
.x_nlinno
= sec
->lineno_count
;
2452 csym
[1].u
.auxent
.x_scn
.x_scnlen
= 0;
2453 csym
[1].u
.auxent
.x_scn
.x_nreloc
= 0;
2454 csym
[1].u
.auxent
.x_scn
.x_nlinno
= 0;
2459 /* If .file, .text, .data, .bss symbols are missing, add them. */
2460 /* @@ Should we only be adding missing symbols, or overriding the aux
2461 values for existing section symbols? */
2463 coff_add_missing_symbols (abfd
)
2466 unsigned int nsyms
= bfd_get_symcount (abfd
);
2467 asymbol
**sympp
= abfd
->outsymbols
;
2470 int need_text
= 1, need_data
= 1, need_bss
= 1, need_file
= 1;
2472 for (i
= 0; i
< nsyms
; i
++)
2474 coff_symbol_type
*csym
= coff_symbol_from (abfd
, sympp
[i
]);
2478 /* only do this if there is a coff representation of the input
2480 if (csym
->native
&& csym
->native
->u
.syment
.n_sclass
== C_FILE
)
2485 name
= csym
->symbol
.name
;
2488 if (!strcmp (name
, _TEXT
))
2490 else if (!strcmp (name
, _DATA
))
2492 else if (!strcmp (name
, _BSS
))
2496 /* Now i == bfd_get_symcount (abfd). */
2497 /* @@ For now, don't deal with .file symbol. */
2500 if (!need_text
&& !need_data
&& !need_bss
&& !need_file
)
2502 nsyms
+= need_text
+ need_data
+ need_bss
+ need_file
;
2503 sympp2
= (asymbol
**) bfd_alloc_by_size_t (abfd
, nsyms
* sizeof (asymbol
*));
2504 memcpy (sympp2
, sympp
, i
* sizeof (asymbol
*));
2507 /* @@ Generate fake .file symbol, in sympp2[i], and increment i. */
2511 sympp2
[i
++] = coff_section_symbol (abfd
, _TEXT
);
2513 sympp2
[i
++] = coff_section_symbol (abfd
, _DATA
);
2515 sympp2
[i
++] = coff_section_symbol (abfd
, _BSS
);
2516 BFD_ASSERT (i
== nsyms
);
2517 bfd_set_symtab (abfd
, sympp2
, nsyms
);
2519 #endif /* NO_COFF_SYMBOLS */
2524 DEFUN(coff_write_object_contents
,(abfd
),
2530 boolean hasrelocs
= false;
2531 boolean haslinno
= false;
2532 file_ptr reloc_base
;
2533 file_ptr lineno_base
;
2537 unsigned long reloc_size
= 0;
2538 unsigned long lnno_size
= 0;
2539 asection
*text_sec
= NULL
;
2540 asection
*data_sec
= NULL
;
2541 asection
*bss_sec
= NULL
;
2543 struct internal_filehdr internal_f
;
2544 struct internal_aouthdr internal_a
;
2547 bfd_error
= system_call_error
;
2548 /* Number the output sections, starting from one on the first section
2549 with a name which doesn't start with a *.
2550 @@ The code doesn't make this check. Is it supposed to be done,
2553 for (current
= abfd
->sections
; current
!= (asection
*)NULL
;
2554 current
= current
->next
)
2556 current
->target_index
= count
;
2560 if(abfd
->output_has_begun
== false) {
2561 coff_compute_section_file_positions(abfd
);
2564 if (abfd
->sections
!= (asection
*)NULL
) {
2565 scn_base
= abfd
->sections
->filepos
;
2570 if (bfd_seek(abfd
, scn_base
, SEEK_SET
) != 0)
2572 reloc_base
= obj_relocbase(abfd
);
2574 /* Make a pass through the symbol table to count line number entries and
2575 put them into the correct asections */
2577 #ifndef NO_COFF_LINENOS
2578 coff_count_linenumbers(abfd
);
2580 data_base
= scn_base
;
2582 /* Work out the size of the reloc and linno areas */
2584 for (current
= abfd
->sections
; current
!= NULL
; current
=
2587 /* We give section headers to +ve indexes */
2588 if (current
->target_index
> 0)
2591 reloc_size
+= current
->reloc_count
* RELSZ
;
2592 #ifndef NO_COFF_LINENOS
2593 lnno_size
+= current
->lineno_count
* LINESZ
;
2595 data_base
+= SCNHSZ
;
2600 lineno_base
= reloc_base
+ reloc_size
;
2601 sym_base
= lineno_base
+ lnno_size
;
2603 /* Indicate in each section->line_filepos its actual file address */
2604 for (current
= abfd
->sections
; current
!= NULL
; current
=
2607 if (current
->target_index
> 0)
2610 if (current
->lineno_count
) {
2611 current
->line_filepos
= lineno_base
;
2612 current
->moving_line_filepos
= lineno_base
;
2613 #ifndef NO_COFF_LINENOS
2614 lineno_base
+= current
->lineno_count
* LINESZ
;
2618 current
->line_filepos
= 0;
2620 if (current
->reloc_count
) {
2621 current
->rel_filepos
= reloc_base
;
2622 reloc_base
+= current
->reloc_count
* RELSZ
;
2625 current
->rel_filepos
= 0;
2632 /* Write section headers to the file. */
2633 internal_f
.f_nscns
= 0;
2635 (file_ptr
) ((abfd
->flags
& EXEC_P
) ?
2636 (FILHSZ
+ AOUTSZ
) : FILHSZ
),
2641 unsigned int pad
= abfd
->flags
& D_PAGED
? data_base
: 0;
2643 unsigned int pad
= 0;
2645 for (current
= abfd
->sections
;
2647 current
= current
->next
) {
2648 struct internal_scnhdr section
;
2649 if (current
->target_index
> 0)
2651 internal_f
.f_nscns
++;
2652 strncpy(&(section
.s_name
[0]), current
->name
, 8);
2654 /* Always set s_vaddr of .lib to 0. This is right for SVR3.2
2655 Ian Taylor <ian@cygnus.com>. */
2656 if (strcmp (current
->name
, _LIB
) == 0)
2657 section
.s_vaddr
= 0;
2660 section
.s_vaddr
= current
->vma
+ pad
;
2661 section
.s_paddr
= current
->vma
+ pad
;
2662 section
.s_size
= current
->_raw_size
- pad
;
2664 If this section has no size or is unloadable then the scnptr
2667 if (current
->_raw_size
- pad
== 0 ||
2668 (current
->flags
& (SEC_LOAD
| SEC_HAS_CONTENTS
)) == 0) {
2669 section
.s_scnptr
= 0;
2672 section
.s_scnptr
= current
->filepos
;
2674 section
.s_relptr
= current
->rel_filepos
;
2675 section
.s_lnnoptr
= current
->line_filepos
;
2676 section
.s_nreloc
= current
->reloc_count
;
2677 section
.s_nlnno
= current
->lineno_count
;
2678 if (current
->reloc_count
!= 0)
2680 if (current
->lineno_count
!= 0)
2683 section
.s_flags
= sec_to_styp_flags(current
->name
,current
->flags
);
2685 if (!strcmp(current
->name
, _TEXT
)) {
2687 } else if (!strcmp(current
->name
, _DATA
)) {
2689 #ifdef TWO_DATA_SECS
2690 } else if (!strcmp(current
->name
, ".data2")) {
2692 #endif /* TWO_DATA_SECS */
2693 } else if (!strcmp(current
->name
, _BSS
)) {
2698 section
.s_align
= (current
->alignment_power
2699 ? 1 << current
->alignment_power
2706 coff_swap_scnhdr_out(abfd
, §ion
, &buff
);
2707 bfd_write((PTR
) (&buff
), 1, SCNHSZ
, abfd
);
2717 /* OK, now set up the filehdr... */
2719 /* Don't include the internal abs section in the section count */
2722 We will NOT put a fucking timestamp in the header here. Every time you
2723 put it back, I will come in and take it out again. I'm sorry. This
2724 field does not belong here. We fill it with a 0 so it compares the
2725 same but is not a reasonable time. -- gnu@cygnus.com
2727 internal_f
.f_timdat
= 0;
2729 if (bfd_get_symcount(abfd
) != 0)
2730 internal_f
.f_symptr
= sym_base
;
2732 internal_f
.f_symptr
= 0;
2734 internal_f
.f_flags
= 0;
2736 if (abfd
->flags
& EXEC_P
)
2737 internal_f
.f_opthdr
= AOUTSZ
;
2739 internal_f
.f_opthdr
= 0;
2742 internal_f
.f_flags
|= F_RELFLG
;
2744 internal_f
.f_flags
|= F_LNNO
;
2745 if (0 == bfd_get_symcount(abfd
))
2746 internal_f
.f_flags
|= F_LSYMS
;
2747 if (abfd
->flags
& EXEC_P
)
2748 internal_f
.f_flags
|= F_EXEC
;
2750 if (!abfd
->xvec
->byteorder_big_p
)
2751 internal_f
.f_flags
|= F_AR32WR
;
2753 internal_f
.f_flags
|= F_AR32W
;
2756 FIXME, should do something about the other byte orders and
2760 /* Set up architecture-dependent stuff */
2762 { unsigned int magic
= 0;
2763 unsigned short flags
= 0;
2764 coff_set_flags(abfd
, &magic
, &flags
);
2765 internal_f
.f_magic
= magic
;
2766 internal_f
.f_flags
|= flags
;
2767 /* ...and the "opt"hdr... */
2770 # ifdef ULTRA3 /* NYU's machine */
2771 /* FIXME: This is a bogus check. I really want to see if there
2772 * is a .shbss or a .shdata section, if so then set the magic
2773 * number to indicate a shared data executable.
2775 if (internal_f
.f_nscns
>= 7)
2776 internal_a
.magic
= SHMAGIC
; /* Shared magic */
2778 # endif /* ULTRA3 */
2779 internal_a
.magic
= NMAGIC
; /* Assume separate i/d */
2780 #define __A_MAGIC_SET__
2783 internal_a
.magic
= (magic
== I960ROMAGIC
? NMAGIC
: OMAGIC
);
2784 #define __A_MAGIC_SET__
2787 #define __A_MAGIC_SET__
2788 internal_a
.magic
= PAGEMAGICBCS
;
2791 #if M68 || MIPS || WE32K
2792 #define __A_MAGIC_SET__
2793 /* Never was anything here for the 68k */
2794 #endif /* M68 || MIPS || WE32K */
2797 # define __A_MAGIC_SET__
2798 internal_a
.magic
= ZMAGIC
;
2802 #define __A_MAGIC_SET__
2803 internal_a
.magic
= (abfd
->flags
& D_PAGED
)? RS6K_AOUTHDR_ZMAGIC
:
2804 (abfd
->flags
& WP_TEXT
)? RS6K_AOUTHDR_NMAGIC
:
2805 RS6K_AOUTHDR_OMAGIC
;
2808 #ifndef __A_MAGIC_SET__
2809 # include "Your aouthdr magic number is not being set!"
2811 # undef __A_MAGIC_SET__
2814 /* Now should write relocs, strings, syms */
2815 obj_sym_filepos(abfd
) = sym_base
;
2817 #ifndef NO_COFF_SYMBOLS
2818 if (bfd_get_symcount(abfd
) != 0) {
2819 coff_add_missing_symbols (abfd
);
2820 coff_renumber_symbols(abfd
);
2821 coff_mangle_symbols(abfd
);
2822 coff_write_symbols(abfd
);
2823 coff_write_linenumbers(abfd
);
2824 coff_write_relocs(abfd
);
2826 #endif /* NO_COFF_SYMBOLS */
2828 internal_a
.tsize
= bfd_get_section_size_before_reloc(text_sec
);
2829 internal_a
.text_start
= internal_a
.tsize
? text_sec
->vma
: 0;
2832 internal_a
.dsize
= bfd_get_section_size_before_reloc(data_sec
);
2833 internal_a
.data_start
= internal_a
.dsize
? data_sec
->vma
: 0;
2836 internal_a
.bsize
= bfd_get_section_size_before_reloc(bss_sec
);
2839 internal_a
.entry
= bfd_get_start_address(abfd
);
2840 internal_f
.f_nsyms
= bfd_get_symcount(abfd
);
2842 /* now write them */
2843 if (bfd_seek(abfd
, (file_ptr
) 0, SEEK_SET
) != 0)
2847 coff_swap_filehdr_out(abfd
, (PTR
)&internal_f
, (PTR
)&buff
);
2848 bfd_write((PTR
) &buff
, 1, FILHSZ
, abfd
);
2850 if (abfd
->flags
& EXEC_P
) {
2852 coff_swap_aouthdr_out(abfd
, (PTR
)&internal_a
, (PTR
)&buff
);
2853 bfd_write((PTR
) &buff
, 1, AOUTSZ
, abfd
);
2858 #ifndef NO_COFF_SYMBOLS
2861 this function transforms the offsets into the symbol table into
2862 pointers to syments.
2867 DEFUN(coff_pointerize_aux
,(ignore_abfd
, table_base
, type
, class, auxent
),
2868 bfd
*ignore_abfd AND
2869 combined_entry_type
*table_base AND
2872 combined_entry_type
*auxent
)
2874 /* Don't bother if this is a file or a section */
2875 if (class == C_STAT
&& type
== T_NULL
) return;
2876 if (class == C_FILE
) return;
2878 /* Otherwise patch up */
2879 if (ISFCN(type
) || ISTAG(class) || class == C_BLOCK
) {
2880 auxent
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.p
= table_base
+
2881 auxent
->u
.auxent
.x_sym
.x_fcnary
.x_fcn
.x_endndx
.l
;
2882 auxent
->fix_end
= 1;
2884 if (auxent
->u
.auxent
.x_sym
.x_tagndx
.l
!= 0) {
2885 auxent
->u
.auxent
.x_sym
.x_tagndx
.p
=
2886 table_base
+ auxent
->u
.auxent
.x_sym
.x_tagndx
.l
;
2887 auxent
->fix_tag
= 1;
2891 #endif /* NO_COFF_SYMBOLS */
2894 DEFUN(coff_set_section_contents
,(abfd
, section
, location
, offset
, count
),
2899 bfd_size_type count
)
2901 if (abfd
->output_has_begun
== false) /* set by bfd.c handler */
2902 coff_compute_section_file_positions(abfd
);
2905 /* If this is a .lib section, bump the vma address so that it
2906 winds up being the number of .lib sections output. This is
2907 right for SVR3.2. Shared libraries should probably get more
2908 generic support. Ian Taylor <ian@cygnus.com>. */
2909 if (strcmp (section
->name
, _LIB
) == 0)
2913 bfd_seek(abfd
, (file_ptr
) (section
->filepos
+ offset
), SEEK_SET
);
2916 return (bfd_write(location
, 1, count
, abfd
) == count
) ? true : false;
2922 coff_close_and_cleanup(abfd
)
2925 if (!bfd_read_p(abfd
))
2926 switch (abfd
->format
) {
2928 if (!_bfd_write_archive_contents(abfd
))
2932 if (!coff_write_object_contents(abfd
))
2936 bfd_error
= invalid_operation
;
2940 /* We depend on bfd_close to free all the memory on the obstack. */
2941 /* FIXME if bfd_release is not using obstacks! */
2947 buy_and_read(abfd
, where
, seek_direction
, size
)
2953 PTR area
= (PTR
) bfd_alloc(abfd
, size
);
2955 bfd_error
= no_memory
;
2958 bfd_seek(abfd
, where
, seek_direction
);
2959 if (bfd_read(area
, 1, size
, abfd
) != size
) {
2960 bfd_error
= system_call_error
;
2964 } /* buy_and_read() */
2967 #ifndef NO_COFF_SYMBOLS
2970 DEFUN(build_string_table
,(abfd
),
2973 char string_table_size_buffer
[4];
2974 unsigned int string_table_size
;
2977 /* At this point we should be "seek"'d to the end of the
2978 symbols === the symbol table size. */
2979 if (bfd_read((char *) string_table_size_buffer
,
2980 sizeof(string_table_size_buffer
),
2981 1, abfd
) != sizeof(string_table_size
)) {
2982 bfd_error
= system_call_error
;
2986 string_table_size
= bfd_h_get_32(abfd
, (bfd_byte
*) string_table_size_buffer
);
2988 if ((string_table
= (PTR
) bfd_alloc(abfd
, string_table_size
-= 4)) == NULL
) {
2989 bfd_error
= no_memory
;
2991 } /* on mallocation error */
2992 if (bfd_read(string_table
, string_table_size
, 1, abfd
) != string_table_size
) {
2993 bfd_error
= system_call_error
;
2996 return string_table
;
2999 /* Allocate space for the ".debug" section, and read it.
3000 We did not read the debug section until now, because
3001 we didn't want to go to the trouble until someone needed it. */
3004 DEFUN(build_debug_section
,(abfd
),
3007 char *debug_section
;
3010 asection
*sect
= bfd_get_section_by_name (abfd
, ".debug");
3013 bfd_error
= no_debug_section
;
3017 debug_section
= (PTR
) bfd_alloc (abfd
,
3018 bfd_get_section_size_before_reloc (sect
));
3019 if (debug_section
== NULL
) {
3020 bfd_error
= no_memory
;
3024 /* Seek to the beginning of the `.debug' section and read it.
3025 Save the current position first; it is needed by our caller.
3026 Then read debug section and reset the file pointer. */
3028 position
= bfd_tell (abfd
);
3029 bfd_seek (abfd
, sect
->filepos
, SEEK_SET
);
3030 if (bfd_read (debug_section
,
3031 bfd_get_section_size_before_reloc (sect
), 1, abfd
)
3032 != bfd_get_section_size_before_reloc(sect
)) {
3033 bfd_error
= system_call_error
;
3036 bfd_seek (abfd
, position
, SEEK_SET
);
3037 return debug_section
;
3041 /* Return a pointer to a malloc'd copy of 'name'. 'name' may not be
3042 \0-terminated, but will not exceed 'maxlen' characters. The copy *will*
3043 be \0-terminated. */
3045 DEFUN(copy_name
,(abfd
, name
, maxlen
),
3053 for (len
= 0; len
< maxlen
; ++len
) {
3054 if (name
[len
] == '\0') {
3059 if ((newname
= (PTR
) bfd_alloc(abfd
, len
+1)) == NULL
) {
3060 bfd_error
= no_memory
;
3063 strncpy(newname
, name
, len
);
3064 newname
[len
] = '\0';
3069 /* Read a symbol table into freshly bfd_allocated memory, swap it, and
3070 knit the symbol names into a normalized form. By normalized here I
3071 mean that all symbols have an n_offset pointer that points to a null-
3072 terminated string. */
3074 #ifndef SYMNAME_IN_DEBUG
3075 #define SYMNAME_IN_DEBUG(x) 0
3078 static combined_entry_type
*
3079 DEFUN(get_normalized_symtab
,(abfd
),
3082 combined_entry_type
*internal
;
3083 combined_entry_type
*internal_ptr
;
3084 combined_entry_type
*symbol_ptr
;
3085 combined_entry_type
*internal_end
;
3089 char *string_table
= NULL
;
3090 char *debug_section
= NULL
;
3093 unsigned int raw_size
;
3094 if (obj_raw_syments(abfd
) != (combined_entry_type
*)NULL
) {
3095 return obj_raw_syments(abfd
);
3097 if ((size
= bfd_get_symcount(abfd
) * sizeof(combined_entry_type
)) == 0) {
3098 bfd_error
= no_symbols
;
3102 internal
= (combined_entry_type
*)bfd_alloc(abfd
, size
);
3103 internal_end
= internal
+ bfd_get_symcount(abfd
);
3105 raw_size
= bfd_get_symcount(abfd
) * SYMESZ
;
3106 raw
= (SYMENT
*)bfd_alloc(abfd
,raw_size
);
3108 if (bfd_seek(abfd
, obj_sym_filepos(abfd
), SEEK_SET
) == -1
3109 || bfd_read((PTR
)raw
, raw_size
, 1, abfd
) != raw_size
) {
3110 bfd_error
= system_call_error
;
3113 /* mark the end of the symbols */
3114 raw_end
= raw
+ bfd_get_symcount(abfd
);
3116 FIXME SOMEDAY. A string table size of zero is very weird, but
3117 probably possible. If one shows up, it will probably kill us.
3120 /* Swap all the raw entries */
3121 for (raw_src
= raw
, internal_ptr
= internal
;
3123 raw_src
++, internal_ptr
++) {
3126 coff_swap_sym_in(abfd
, (PTR
)raw_src
, (PTR
)&internal_ptr
->u
.syment
);
3127 internal_ptr
->fix_tag
= 0;
3128 internal_ptr
->fix_end
= 0;
3129 symbol_ptr
= internal_ptr
;
3132 i
< symbol_ptr
->u
.syment
.n_numaux
;
3138 internal_ptr
->fix_tag
= 0;
3139 internal_ptr
->fix_end
= 0;
3140 coff_swap_aux_in(abfd
, (char *)(raw_src
),
3141 symbol_ptr
->u
.syment
.n_type
,
3142 symbol_ptr
->u
.syment
.n_sclass
,
3143 &(internal_ptr
->u
.auxent
));
3144 /* Remember that bal entries arn't pointerized */
3145 if (i
!= 1 || symbol_ptr
->u
.syment
.n_sclass
!= C_LEAFPROC
)
3148 coff_pointerize_aux(abfd
,
3150 symbol_ptr
->u
.syment
.n_type
,
3151 symbol_ptr
->u
.syment
.n_sclass
,
3158 /* Free all the raw stuff */
3159 bfd_release(abfd
, raw
);
3161 for (internal_ptr
= internal
; internal_ptr
< internal_end
;
3164 if (internal_ptr
->u
.syment
.n_sclass
== C_FILE
) {
3165 /* make a file symbol point to the name in the auxent, since
3166 the text ".file" is redundant */
3167 if ((internal_ptr
+1)->u
.auxent
.x_file
.x_n
.x_zeroes
== 0) {
3168 /* the filename is a long one, point into the string table */
3169 if (string_table
== NULL
) {
3170 string_table
= build_string_table(abfd
);
3173 internal_ptr
->u
.syment
._n
._n_n
._n_offset
=
3174 (int) (string_table
- 4 +
3175 (internal_ptr
+1)->u
.auxent
.x_file
.x_n
.x_offset
);
3178 /* ordinary short filename, put into memory anyway */
3179 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int)
3180 copy_name(abfd
, (internal_ptr
+1)->u
.auxent
.x_file
.x_fname
,
3185 if (internal_ptr
->u
.syment
._n
._n_n
._n_zeroes
!= 0) {
3186 /* This is a "short" name. Make it long. */
3187 unsigned long i
= 0;
3188 char *newstring
= NULL
;
3190 /* find the length of this string without walking into memory
3192 for (i
= 0; i
< 8; ++i
) {
3193 if (internal_ptr
->u
.syment
._n
._n_name
[i
] == '\0') {
3195 } /* if end of string */
3196 } /* possible lengths of this string. */
3198 if ((newstring
= (PTR
) bfd_alloc(abfd
, ++i
)) == NULL
) {
3199 bfd_error
= no_memory
;
3202 memset(newstring
, 0, i
);
3203 strncpy(newstring
, internal_ptr
->u
.syment
._n
._n_name
, i
-1);
3204 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int) newstring
;
3205 internal_ptr
->u
.syment
._n
._n_n
._n_zeroes
= 0;
3207 else if (!SYMNAME_IN_DEBUG(&internal_ptr
->u
.syment
)) {
3208 /* Long name already. Point symbol at the string in the table. */
3209 if (string_table
== NULL
) {
3210 string_table
= build_string_table(abfd
);
3212 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int)
3213 (string_table
- 4 + internal_ptr
->u
.syment
._n
._n_n
._n_offset
);
3216 /* Long name in debug section. Very similar. */
3217 if (debug_section
== NULL
) {
3218 debug_section
= build_debug_section(abfd
);
3220 internal_ptr
->u
.syment
._n
._n_n
._n_offset
= (int)
3221 (debug_section
+ internal_ptr
->u
.syment
._n
._n_n
._n_offset
);
3224 internal_ptr
+= internal_ptr
->u
.syment
.n_numaux
;
3227 obj_raw_syments(abfd
) = internal
;
3230 } /* get_normalized_symtab() */
3232 #endif /* NO_COFF_SYMBOLS */
3236 DEFUN(section_from_bfd_index
,(abfd
, index
),
3240 struct sec
*answer
= abfd
->sections
;
3244 return &bfd_abs_section
;
3246 if (index
== N_UNDEF
)
3248 return &bfd_und_section
;
3250 if(index
== N_DEBUG
)
3252 return &bfd_debug_section
;
3257 if (answer
->target_index
== index
)
3259 answer
= answer
->next
;
3262 return &bfd_und_section
; /* For gcc -W and lint. Never executed. */
3265 #ifndef NO_COFF_LINENOS
3271 Creating the linenumber table is done by reading in the entire
3272 coff linenumber table, and creating another table for internal use.
3274 A coff line number table is structured so that each function
3275 is marked as having a line number of 0. Each line within the
3276 function is an offset from the first line in the function. The
3277 base of the line number information for the table is stored in
3278 the symbol associated with the function.
3280 The information is copied from the external to the internal
3281 table, and each symbol which marks a function is marked by
3284 How does this work ?
3289 coff_slurp_line_table(abfd
, asect
)
3293 LINENO
*native_lineno
;
3294 alent
*lineno_cache
;
3296 BFD_ASSERT(asect
->lineno
== (alent
*) NULL
);
3298 native_lineno
= (LINENO
*) buy_and_read(abfd
,
3299 asect
->line_filepos
,
3302 asect
->lineno_count
));
3304 (alent
*) bfd_alloc(abfd
, (size_t) ((asect
->lineno_count
+ 1) * sizeof(alent
)));
3305 if (lineno_cache
== NULL
) {
3306 bfd_error
= no_memory
;
3309 unsigned int counter
= 0;
3310 alent
*cache_ptr
= lineno_cache
;
3311 LINENO
*src
= native_lineno
;
3313 while (counter
< asect
->lineno_count
) {
3314 struct internal_lineno dst
;
3315 coff_swap_lineno_in(abfd
, src
, &dst
);
3316 cache_ptr
->line_number
= dst
.l_lnno
;
3318 if (cache_ptr
->line_number
== 0) {
3319 coff_symbol_type
*sym
=
3320 (coff_symbol_type
*) (dst
.l_addr
.l_symndx
3321 + obj_raw_syments(abfd
))->u
.syment
._n
._n_n
._n_zeroes
;
3322 cache_ptr
->u
.sym
= (asymbol
*) sym
;
3323 sym
->lineno
= cache_ptr
;
3326 cache_ptr
->u
.offset
= dst
.l_addr
.l_paddr
3327 - bfd_section_vma(abfd
, asect
);
3328 } /* If no linenumber expect a symbol index */
3334 cache_ptr
->line_number
= 0;
3337 asect
->lineno
= lineno_cache
;
3338 /* FIXME, free native_lineno here, or use alloca or something. */
3340 } /* coff_slurp_line_table() */
3342 #endif /* NO_COFF_LINENOS */
3344 #ifndef NO_COFF_LINENOS
3347 DEFUN(coff_slurp_symbol_table
,(abfd
),
3350 combined_entry_type
*native_symbols
;
3351 coff_symbol_type
*cached_area
;
3352 unsigned int *table_ptr
;
3354 unsigned int number_of_symbols
= 0;
3355 if (obj_symbols(abfd
))
3357 bfd_seek(abfd
, obj_sym_filepos(abfd
), SEEK_SET
);
3359 /* Read in the symbol table */
3360 if ((native_symbols
= get_normalized_symtab(abfd
)) == NULL
) {
3364 /* Allocate enough room for all the symbols in cached form */
3366 (coff_symbol_type
*)
3367 bfd_alloc(abfd
, (size_t) (bfd_get_symcount(abfd
) * sizeof(coff_symbol_type
)));
3369 if (cached_area
== NULL
) {
3370 bfd_error
= no_memory
;
3375 bfd_alloc(abfd
, (size_t) (bfd_get_symcount(abfd
) * sizeof(unsigned int)));
3377 if (table_ptr
== NULL
) {
3378 bfd_error
= no_memory
;
3383 coff_symbol_type
*dst
= cached_area
;
3384 unsigned int last_native_index
= bfd_get_symcount(abfd
);
3385 unsigned int this_index
= 0;
3386 while (this_index
< last_native_index
) {
3387 combined_entry_type
*src
= native_symbols
+ this_index
;
3388 table_ptr
[this_index
] = number_of_symbols
;
3389 dst
->symbol
.the_bfd
= abfd
;
3391 dst
->symbol
.name
= (char *)(src
->u
.syment
._n
._n_n
._n_offset
);
3393 We use the native name field to point to the cached field
3395 src
->u
.syment
._n
._n_n
._n_zeroes
= (int) dst
;
3396 dst
->symbol
.section
= section_from_bfd_index(abfd
,
3397 src
->u
.syment
.n_scnum
);
3398 dst
->symbol
.flags
= 0;
3399 dst
->done_lineno
= false;
3401 switch (src
->u
.syment
.n_sclass
) {
3405 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
3406 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3407 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
3409 /* Fall through to next case */
3417 if ((src
->u
.syment
.n_scnum
) == 0) {
3418 if ((src
->u
.syment
.n_value
) == 0) {
3419 dst
->symbol
.section
= &bfd_und_section
;
3420 dst
->symbol
.value
= 0;
3423 dst
->symbol
.section
= &bfd_com_section
;
3424 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3429 Base the value as an index from the base of the
3433 dst
->symbol
.flags
= BSF_EXPORT
| BSF_GLOBAL
;
3434 dst
->symbol
.value
= src
->u
.syment
.n_value
- dst
->symbol
.section
->vma
;
3436 if (ISFCN((src
->u
.syment
.n_type
))) {
3438 A function ext does not go at the end of a file
3440 dst
->symbol
.flags
|= BSF_NOT_AT_END
;
3447 case C_STAT
: /* static */
3449 case C_LEAFSTAT
: /* static leaf procedure */
3451 case C_LABEL
: /* label */
3452 if (src
->u
.syment
.n_scnum
== -2)
3453 dst
->symbol
.flags
= BSF_DEBUGGING
;
3455 dst
->symbol
.flags
= BSF_LOCAL
;
3457 Base the value as an index from the base of the section, if
3460 if (dst
->symbol
.section
)
3461 dst
->symbol
.value
= (src
->u
.syment
.n_value
) -
3462 dst
->symbol
.section
->vma
;
3464 dst
->symbol
.value
= (src
->u
.syment
.n_value
) ;
3467 case C_MOS
: /* member of structure */
3468 case C_EOS
: /* end of structure */
3469 #ifdef NOTDEF /* C_AUTOARG has the same value */
3471 case C_GLBLREG
: /* A29k-specific storage class */
3474 case C_REGPARM
: /* register parameter */
3475 case C_REG
: /* register variable */
3477 case C_AUTOARG
: /* 960-specific storage class */
3479 case C_TPDEF
: /* type definition */
3481 case C_AUTO
: /* automatic variable */
3482 case C_FIELD
: /* bit field */
3483 case C_ENTAG
: /* enumeration tag */
3484 case C_MOE
: /* member of enumeration */
3485 case C_MOU
: /* member of union */
3486 case C_UNTAG
: /* union tag */
3487 dst
->symbol
.flags
= BSF_DEBUGGING
;
3488 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3491 case C_FILE
: /* file name */
3492 case C_STRTAG
: /* structure tag */
3494 case C_BINCL
: /* beginning of include file */
3495 case C_EINCL
: /* ending of include file */
3508 dst
->symbol
.flags
= BSF_DEBUGGING
;
3509 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3512 case C_BLOCK
: /* ".bb" or ".eb" */
3513 case C_FCN
: /* ".bf" or ".ef" */
3514 case C_EFCN
: /* physical end of function */
3515 dst
->symbol
.flags
= BSF_LOCAL
;
3517 Base the value as an index from the base of the section
3519 dst
->symbol
.value
= (src
->u
.syment
.n_value
) - dst
->symbol
.section
->vma
;
3523 case C_EXTDEF
: /* external definition */
3524 case C_ULABEL
: /* undefined label */
3525 case C_USTATIC
: /* undefined static */
3526 case C_LINE
: /* line # reformatted as symbol table entry */
3527 case C_ALIAS
: /* duplicate tag */
3528 case C_HIDDEN
: /* ext symbol in dmert public lib */
3531 fprintf(stderr
,"Unrecognized storage class %d\n",
3532 src
->u
.syment
.n_sclass
);
3534 dst
->symbol
.flags
= BSF_DEBUGGING
;
3535 dst
->symbol
.value
= (src
->u
.syment
.n_value
);
3539 /* BFD_ASSERT(dst->symbol.flags != 0);*/
3543 dst
->symbol
.udata
= 0;
3544 dst
->lineno
= (alent
*) NULL
;
3545 this_index
+= (src
->u
.syment
.n_numaux
) + 1;
3547 number_of_symbols
++;
3548 } /* walk the native symtab */
3549 } /* bfdize the native symtab */
3551 obj_symbols(abfd
) = cached_area
;
3552 obj_raw_syments(abfd
) = native_symbols
;
3554 obj_conv_table_size (abfd
) = bfd_get_symcount (abfd
);
3555 bfd_get_symcount(abfd
) = number_of_symbols
;
3556 obj_convert(abfd
) = table_ptr
;
3557 /* Slurp the line tables for each section too */
3562 coff_slurp_line_table(abfd
, p
);
3567 } /* coff_slurp_symbol_table() */
3570 coff_get_symtab_upper_bound(abfd
)
3573 if (!coff_slurp_symbol_table(abfd
))
3576 return (bfd_get_symcount(abfd
) + 1) * (sizeof(coff_symbol_type
*));
3581 DEFUN(coff_get_symtab
, (abfd
, alocation
),
3583 asymbol
**alocation
)
3585 unsigned int counter
= 0;
3586 coff_symbol_type
*symbase
;
3587 coff_symbol_type
**location
= (coff_symbol_type
**) (alocation
);
3588 if (!coff_slurp_symbol_table(abfd
))
3591 symbase
= obj_symbols(abfd
);
3592 while (counter
< bfd_get_symcount(abfd
))
3594 /* This nasty code looks at the symbol to decide whether or
3595 not it is descibes a constructor/destructor entry point. It
3596 is structured this way to (hopefully) speed non matches */
3598 if (0 && symbase
->symbol
.name
[9] == '$')
3600 bfd_constructor_entry(abfd
,
3601 (asymbol
**)location
,
3602 symbase
->symbol
.name
[10] == 'I' ?
3606 *(location
++) = symbase
++;
3610 return bfd_get_symcount(abfd
);
3613 #endif /* NO_COFF_SYMBOLS */
3616 coff_get_reloc_upper_bound(abfd
, asect
)
3620 if (bfd_get_format(abfd
) != bfd_object
) {
3621 bfd_error
= invalid_operation
;
3624 return (asect
->reloc_count
+ 1) * sizeof(arelent
*);
3631 Coff relocations are easily transformed into the internal BFD form
3634 Reading a coff relocation table is done in the following stages:
3636 o The entire coff relocation table is read into memory.
3638 o Each relocation is processed in turn, first it is swapped from the
3639 external to the internal form.
3641 o The symbol referenced in the relocation's symbol index is
3642 turned intoa pointer into the canonical symbol table. Note
3643 that this table is the same as the one returned by a call to
3644 @code{bfd_canonicalize_symtab}. The back end will call the
3645 routine and save the result if a canonicalization hasn't been done.
3647 o The reloc index is turned into a pointer to a howto
3648 structure, in a back end specific way. For instance, the 386
3649 and 960 use the @code{r_type} to directly produce an index
3650 into a howto table vector; the 88k subtracts a number from the
3651 @code{r_type} field and creates an addend field.
3657 #define CALC_ADDEND(abfd, ptr, reloc, cache_ptr) \
3658 if (ptr && ptr->the_bfd == abfd \
3659 && ((ptr->flags & BSF_OLD_COMMON)== 0)) \
3661 cache_ptr->addend = -(ptr->section->vma + ptr->value); \
3664 cache_ptr->addend = 0; \
3669 DEFUN(coff_slurp_reloc_table
,(abfd
, asect
, symbols
),
3674 RELOC
*native_relocs
;
3675 arelent
*reloc_cache
;
3680 if (asect
->relocation
)
3682 if (asect
->reloc_count
== 0)
3684 if (asect
->flags
& SEC_CONSTRUCTOR
)
3686 #ifndef NO_COFF_SYMBOLS
3687 if (!coff_slurp_symbol_table(abfd
))
3691 (RELOC
*) buy_and_read(abfd
,
3695 asect
->reloc_count
));
3696 reloc_cache
= (arelent
*)
3697 bfd_alloc(abfd
, (size_t) (asect
->reloc_count
* sizeof(arelent
)));
3699 if (reloc_cache
== NULL
) {
3700 bfd_error
= no_memory
;
3705 for (idx
= 0; idx
< asect
->reloc_count
; idx
++)
3707 #ifdef RELOC_PROCESSING
3708 struct internal_reloc dst
;
3709 struct external_reloc
*src
;
3711 cache_ptr
= reloc_cache
+ idx
;
3712 src
= native_relocs
+ idx
;
3713 bfd_swap_reloc_in(abfd
, src
, &dst
);
3715 RELOC_PROCESSING(cache_ptr
, &dst
, symbols
, abfd
, asect
);
3717 struct internal_reloc dst
;
3719 struct external_reloc
*src
;
3721 cache_ptr
= reloc_cache
+ idx
;
3722 src
= native_relocs
+ idx
;
3724 bfd_swap_reloc_in(abfd
, src
, &dst
);
3727 cache_ptr
->address
= dst
.r_vaddr
;
3729 if (dst
.r_symndx
!= -1)
3731 /* @@ Should never be greater than count of symbols! */
3732 if (dst
.r_symndx
>= obj_conv_table_size (abfd
))
3734 cache_ptr
->sym_ptr_ptr
= symbols
+ obj_convert(abfd
)[dst
.r_symndx
];
3735 ptr
= *(cache_ptr
->sym_ptr_ptr
);
3739 cache_ptr
->sym_ptr_ptr
= bfd_abs_section
.symbol_ptr_ptr
;
3744 The symbols definitions that we have read in have been
3745 relocated as if their sections started at 0. But the offsets
3746 refering to the symbols in the raw data have not been
3747 modified, so we have to have a negative addend to compensate.
3749 Note that symbols which used to be common must be left alone */
3751 /* Calculate any reloc addend by looking at the symbol */
3752 CALC_ADDEND(abfd
, ptr
, dst
, cache_ptr
);
3754 cache_ptr
->address
-= asect
->vma
;
3755 /* !! cache_ptr->section = (asection *) NULL;*/
3757 /* Fill in the cache_ptr->howto field from dst.r_type */
3758 RTYPE2HOWTO(cache_ptr
, &dst
);
3763 asect
->relocation
= reloc_cache
;
3768 /* This is stupid. This function should be a boolean predicate */
3770 DEFUN(coff_canonicalize_reloc
, (abfd
, section
, relptr
, symbols
),
3773 arelent
**relptr AND
3776 arelent
*tblptr
= section
->relocation
;
3777 unsigned int count
= 0;
3780 if (section
->flags
& SEC_CONSTRUCTOR
)
3782 /* this section has relocs made up by us, they are not in the
3783 file, so take them out of their chain and place them into
3784 the data area provided */
3785 arelent_chain
*chain
= section
->constructor_chain
;
3786 for (count
= 0; count
< section
->reloc_count
; count
++)
3788 *relptr
++ = &chain
->relent
;
3789 chain
= chain
->next
;
3795 coff_slurp_reloc_table(abfd
, section
, symbols
);
3798 tblptr
= section
->relocation
;
3802 for (; count
++ < section
->reloc_count
;)
3803 *relptr
++ = tblptr
++;
3808 return section
->reloc_count
;
3811 #ifndef NO_COFF_SYMBOLS
3814 provided a BFD, a section and an offset into the section, calculate and
3815 return the name of the source file and the line nearest to the wanted
3820 DEFUN(coff_find_nearest_line
,(abfd
,
3828 asection
*section AND
3829 asymbol
**ignore_symbols AND
3831 CONST
char **filename_ptr AND
3832 CONST
char **functionname_ptr AND
3833 unsigned int *line_ptr
)
3835 static bfd
*cache_abfd
;
3836 static asection
*cache_section
;
3837 static bfd_vma cache_offset
;
3838 static unsigned int cache_i
;
3839 static alent
*cache_l
;
3842 coff_data_type
*cof
= coff_data(abfd
);
3843 /* Run through the raw syments if available */
3844 combined_entry_type
*p
;
3846 unsigned int line_base
= 0;
3850 *functionname_ptr
= 0;
3853 /* Don't try and find line numbers in a non coff file */
3854 if (abfd
->xvec
->flavour
!= bfd_target_coff_flavour
)
3860 p
= cof
->raw_syments
;
3862 for (i
= 0; i
< cof
->raw_syment_count
; i
++) {
3863 if (p
->u
.syment
.n_sclass
== C_FILE
) {
3864 /* File name has been moved into symbol */
3865 *filename_ptr
= (char *) p
->u
.syment
._n
._n_n
._n_offset
;
3868 p
+= 1 + p
->u
.syment
.n_numaux
;
3870 /* Now wander though the raw linenumbers of the section */
3872 If this is the same BFD as we were previously called with and this is
3873 the same section, and the offset we want is further down then we can
3874 prime the lookup loop
3876 if (abfd
== cache_abfd
&&
3877 section
== cache_section
&&
3878 offset
>= cache_offset
) {
3884 l
= section
->lineno
;
3887 for (; i
< section
->lineno_count
; i
++) {
3888 if (l
->line_number
== 0) {
3889 /* Get the symbol this line number points at */
3890 coff_symbol_type
*coff
= (coff_symbol_type
*) (l
->u
.sym
);
3891 *functionname_ptr
= coff
->symbol
.name
;
3893 combined_entry_type
*s
= coff
->native
;
3894 s
= s
+ 1 + s
->u
.syment
.n_numaux
;
3896 S should now point to the .bf of the function
3898 if (s
->u
.syment
.n_numaux
) {
3900 The linenumber is stored in the auxent
3902 union internal_auxent
*a
= &((s
+ 1)->u
.auxent
);
3903 line_base
= a
->x_sym
.x_misc
.x_lnsz
.x_lnno
;
3908 if (l
->u
.offset
> offset
)
3910 *line_ptr
= l
->line_number
+ line_base
+ 1;
3916 cache_section
= section
;
3917 cache_offset
= offset
;
3926 coff_sym_filepos(abfd
)
3929 return obj_sym_filepos(abfd
);
3933 #endif /* NO_COFF_SYMBOLS */
3937 DEFUN(coff_sizeof_headers
,(abfd
, reloc
),
3943 if (reloc
== false) {
3944 size
= FILHSZ
+ AOUTSZ
;
3950 size
+= abfd
->section_count
* SCNHSZ
;
3955 DEFUN(get_value
,(reloc
, seclet
),
3957 bfd_seclet_type
*seclet
)
3960 asymbol
*symbol
= *(reloc
->sym_ptr_ptr
);
3961 /* A symbol holds a pointer to a section, and an offset from the
3962 base of the section. To relocate, we find where the section will
3963 live in the output and add that in */
3965 if (symbol
->section
== &bfd_und_section
)
3967 /* Ouch, this is an undefined symbol.. */
3968 bfd_error_vector
.undefined_symbol(reloc
, seclet
);
3969 value
= symbol
->value
;
3973 value
= symbol
->value
+
3974 symbol
->section
->output_offset
+
3975 symbol
->section
->output_section
->vma
;
3979 /* Add the value contained in the relocation */
3980 value
+= reloc
->addend
;
3986 DEFUN(perform_slip
,(s
, slip
, input_section
, value
),
3988 unsigned int slip AND
3989 asection
*input_section AND
3993 /* Find all symbols past this point, and make them know
3998 if (p
->section
== input_section
)
4000 /* This was pointing into this section, so mangle it */
4001 if (p
->value
> value
)
4011 DEFUN(movb1
,(input_section
, symbols
, r
, shrink
),
4012 asection
*input_section AND
4013 asymbol
**symbols AND
4015 unsigned int shrink
)
4017 bfd_vma value
= get_value(r
,0);
4019 if (value
>= 0xff00)
4022 /* Change the reloc type from 16bit, possible 8 to 8bit
4024 r
->howto
= r
->howto
+ 1;
4025 /* The place to relc moves back by one */
4028 /* This will be two bytes smaller in the long run */
4030 perform_slip(symbols
, 2, input_section
, r
->address
- shrink
+1);
4038 DEFUN(jmp1
,(input_section
, symbols
, r
, shrink
),
4039 asection
*input_section AND
4040 asymbol
**symbols AND
4042 unsigned int shrink
)
4046 bfd_vma value
= get_value(r
, 0);
4048 bfd_vma dot
= input_section
->output_section
->vma
+
4049 input_section
->output_offset
+ r
->address
;
4052 /* See if the address we're looking at within 127 bytes of where
4053 we are, if so then we can use a small branch rather than the
4054 jump we were going to */
4056 gap
= value
- (dot
- shrink
);
4059 if (-120 < (long)gap
&& (long)gap
< 120 )
4062 /* Change the reloc type from 16bit, possible 8 to 8bit
4064 r
->howto
= r
->howto
+ 1;
4065 /* The place to relc moves back by one */
4068 /* This will be two bytes smaller in the long run */
4070 perform_slip(symbols
, 2, input_section
, r
->address
-shrink
+1);
4078 DEFUN(bfd_coff_relax_section
,(abfd
, i
, symbols
),
4084 /* Get enough memory to hold the stuff */
4085 bfd
*input_bfd
= i
->owner
;
4086 asection
*input_section
= i
;
4088 boolean
new = false;
4090 bfd_size_type reloc_size
= bfd_get_reloc_upper_bound(input_bfd
,
4092 arelent
**reloc_vector
= (arelent
**)bfd_xmalloc(reloc_size
);
4094 /* Get the relocs and think about them */
4095 if (bfd_canonicalize_reloc(input_bfd
,
4101 for (parent
= reloc_vector
; *parent
; parent
++)
4103 arelent
*r
= *parent
;
4104 switch (r
->howto
->type
) {
4112 shrink
= movb1(input_section
, symbols
, r
, shrink
);
4117 shrink
= jmp1(input_section
, symbols
, r
, shrink
);
4125 input_section
->_cooked_size
-= shrink
;
4126 free((char *)reloc_vector
);
4131 DEFUN(bfd_coff_get_relocated_section_contents
,(in_abfd
, seclet
, data
),
4133 bfd_seclet_type
*seclet AND
4137 /* Get enough memory to hold the stuff */
4138 bfd
*input_bfd
= seclet
->u
.indirect
.section
->owner
;
4139 asection
*input_section
= seclet
->u
.indirect
.section
;
4140 bfd_size_type reloc_size
= bfd_get_reloc_upper_bound(input_bfd
,
4142 arelent
**reloc_vector
= (arelent
**)bfd_xmalloc(reloc_size
);
4144 /* read in the section */
4145 bfd_get_section_contents(input_bfd
,
4149 input_section
->_raw_size
);
4152 if (bfd_canonicalize_reloc(input_bfd
,
4155 seclet
->u
.indirect
.symbols
) )
4157 arelent
**parent
= reloc_vector
;
4162 unsigned int dst_address
= 0;
4163 unsigned int src_address
= 0;
4167 /* Find how long a run we can do */
4168 while (dst_address
< seclet
->size
)
4174 /* Note that the relaxing didn't tie up the addresses in the
4175 relocation, so we use the original address to work out the
4176 run of non-relocated data */
4177 run
= reloc
->address
- src_address
;
4183 run
= seclet
->size
- dst_address
;
4185 /* Copy the bytes */
4186 for (idx
= 0; idx
< run
; idx
++)
4188 data
[dst_address
++] = data
[src_address
++];
4191 /* Now do the relocation */
4195 switch (reloc
->howto
->type
)
4198 /* Speciial relaxed type */
4200 bfd_vma dot
= seclet
->offset
+ dst_address
+ seclet
->u
.indirect
.section
->output_section
->vma
;
4201 int gap
= get_value(reloc
,seclet
)-dot
-1;
4202 if ((gap
& ~0xff ) != 0 &&((gap
& 0xff00)!= 0xff00)) abort();
4204 bfd_put_8(in_abfd
,gap
, data
+dst_address
);
4206 switch (data
[dst_address
-1])
4211 bfd_put_8(in_abfd
, 0x55, data
+dst_address
-1);
4215 bfd_put_8(in_abfd
, 0x40, data
+dst_address
-1);
4234 /* Special relaxed type, there will be a gap between where we
4235 get stuff from and where we put stuff to now
4237 for a mov.b @aa:16 -> mov.b @aa:8
4238 opcode 0x6a 0x0y offset
4241 if (data
[dst_address
-1] != 0x6a)
4243 switch (data
[src_address
] & 0xf0)
4247 data
[dst_address
-1] = (data
[src_address
] & 0xf) | 0x20;
4251 data
[dst_address
-1] = (data
[src_address
] & 0xf) | 0x30;
4257 /* the offset must fit ! after all, what was all the relaxing
4260 bfd_put_8(in_abfd
, get_value(reloc
, seclet
), data
+ dst_address
);
4262 /* Note the magic - src goes up by two bytes, but dst by only
4271 bfd_vma dot
= seclet
->offset
+ dst_address
+ seclet
->u
.indirect
.section
->output_section
->vma
;
4272 int gap
= get_value(reloc
,seclet
)-dot
;
4273 if (gap
> 127 || gap
< -128)
4275 bfd_error_vector
.reloc_value_truncated(reloc
, seclet
);
4278 bfd_put_8(in_abfd
,gap
, data
+dst_address
);
4287 unsigned int gap
=get_value(reloc
,seclet
);
4288 if (gap
> 0xff && gap
< ~0xff)
4290 bfd_error_vector
.reloc_value_truncated(reloc
, seclet
);
4293 bfd_put_8(in_abfd
, gap
, data
+dst_address
);
4301 /* A relword which would have like to have been a pcrel */
4303 /* A relword which would like to have been modified but
4306 bfd_put_16(in_abfd
, get_value(reloc
,seclet
), data
+dst_address
);
4321 free((char *)reloc_vector
);
4326 #if !defined (NO_COFF_SYMBOLS) && !defined (NO_COFF_LINENOS)
4327 static CONST bfd_coff_backend_data bfd_coff_std_swap_table
= {
4328 coff_swap_aux_in
, coff_swap_sym_in
, coff_swap_lineno_in
,
4329 coff_swap_aux_out
, coff_swap_sym_out
,
4330 coff_swap_lineno_out
, coff_swap_reloc_out
,
4331 coff_swap_filehdr_out
, coff_swap_aouthdr_out
,
4332 coff_swap_scnhdr_out
,
4336 #define coff_core_file_failing_command _bfd_dummy_core_file_failing_command
4337 #define coff_core_file_failing_signal _bfd_dummy_core_file_failing_signal
4338 #define coff_core_file_matches_executable_p _bfd_dummy_core_file_matches_executable_p
4339 #define coff_slurp_armap bfd_slurp_coff_armap
4340 #define coff_slurp_extended_name_table _bfd_slurp_extended_name_table
4341 #define coff_truncate_arname bfd_dont_truncate_arname
4342 #define coff_openr_next_archived_file bfd_generic_openr_next_archived_file
4343 #define coff_generic_stat_arch_elt bfd_generic_stat_arch_elt
4344 #define coff_get_section_contents bfd_generic_get_section_contents
4345 #define coff_close_and_cleanup bfd_generic_close_and_cleanup
4347 #define coff_bfd_debug_info_start bfd_void
4348 #define coff_bfd_debug_info_end bfd_void
4349 #define coff_bfd_debug_info_accumulate \
4350 (void (*) PARAMS ((bfd *, struct sec *))) bfd_void
4351 #define coff_bfd_get_relocated_section_contents bfd_generic_get_relocated_section_contents
4352 #define coff_bfd_relax_section bfd_generic_relax_section