1*a9fa9459Szrj /* rddbg.c -- Read debugging information into a generic form.
2*a9fa9459Szrj Copyright (C) 1995-2016 Free Software Foundation, Inc.
3*a9fa9459Szrj Written by Ian Lance Taylor <ian@cygnus.com>.
4*a9fa9459Szrj
5*a9fa9459Szrj This file is part of GNU Binutils.
6*a9fa9459Szrj
7*a9fa9459Szrj This program is free software; you can redistribute it and/or modify
8*a9fa9459Szrj it under the terms of the GNU General Public License as published by
9*a9fa9459Szrj the Free Software Foundation; either version 3 of the License, or
10*a9fa9459Szrj (at your option) any later version.
11*a9fa9459Szrj
12*a9fa9459Szrj This program is distributed in the hope that it will be useful,
13*a9fa9459Szrj but WITHOUT ANY WARRANTY; without even the implied warranty of
14*a9fa9459Szrj MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15*a9fa9459Szrj GNU General Public License for more details.
16*a9fa9459Szrj
17*a9fa9459Szrj You should have received a copy of the GNU General Public License
18*a9fa9459Szrj along with this program; if not, write to the Free Software
19*a9fa9459Szrj Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston, MA
20*a9fa9459Szrj 02110-1301, USA. */
21*a9fa9459Szrj
22*a9fa9459Szrj
23*a9fa9459Szrj /* This file reads debugging information into a generic form. This
24*a9fa9459Szrj file knows how to dig the debugging information out of an object
25*a9fa9459Szrj file. */
26*a9fa9459Szrj
27*a9fa9459Szrj #include "sysdep.h"
28*a9fa9459Szrj #include "bfd.h"
29*a9fa9459Szrj #include "libiberty.h"
30*a9fa9459Szrj #include "bucomm.h"
31*a9fa9459Szrj #include "debug.h"
32*a9fa9459Szrj #include "budbg.h"
33*a9fa9459Szrj
34*a9fa9459Szrj static bfd_boolean read_section_stabs_debugging_info
35*a9fa9459Szrj (bfd *, asymbol **, long, void *, bfd_boolean *);
36*a9fa9459Szrj static bfd_boolean read_symbol_stabs_debugging_info
37*a9fa9459Szrj (bfd *, asymbol **, long, void *, bfd_boolean *);
38*a9fa9459Szrj static bfd_boolean read_ieee_debugging_info (bfd *, void *, bfd_boolean *);
39*a9fa9459Szrj static void save_stab (int, int, bfd_vma, const char *);
40*a9fa9459Szrj static void stab_context (void);
41*a9fa9459Szrj static void free_saved_stabs (void);
42*a9fa9459Szrj
43*a9fa9459Szrj /* Read debugging information from a BFD. Returns a generic debugging
44*a9fa9459Szrj pointer. */
45*a9fa9459Szrj
46*a9fa9459Szrj void *
read_debugging_info(bfd * abfd,asymbol ** syms,long symcount,bfd_boolean no_messages)47*a9fa9459Szrj read_debugging_info (bfd *abfd, asymbol **syms, long symcount, bfd_boolean no_messages)
48*a9fa9459Szrj {
49*a9fa9459Szrj void *dhandle;
50*a9fa9459Szrj bfd_boolean found;
51*a9fa9459Szrj
52*a9fa9459Szrj dhandle = debug_init ();
53*a9fa9459Szrj if (dhandle == NULL)
54*a9fa9459Szrj return NULL;
55*a9fa9459Szrj
56*a9fa9459Szrj if (! read_section_stabs_debugging_info (abfd, syms, symcount, dhandle,
57*a9fa9459Szrj &found))
58*a9fa9459Szrj return NULL;
59*a9fa9459Szrj
60*a9fa9459Szrj if (bfd_get_flavour (abfd) == bfd_target_aout_flavour)
61*a9fa9459Szrj {
62*a9fa9459Szrj if (! read_symbol_stabs_debugging_info (abfd, syms, symcount, dhandle,
63*a9fa9459Szrj &found))
64*a9fa9459Szrj return NULL;
65*a9fa9459Szrj }
66*a9fa9459Szrj
67*a9fa9459Szrj if (bfd_get_flavour (abfd) == bfd_target_ieee_flavour)
68*a9fa9459Szrj {
69*a9fa9459Szrj if (! read_ieee_debugging_info (abfd, dhandle, &found))
70*a9fa9459Szrj return NULL;
71*a9fa9459Szrj }
72*a9fa9459Szrj
73*a9fa9459Szrj /* Try reading the COFF symbols if we didn't find any stabs in COFF
74*a9fa9459Szrj sections. */
75*a9fa9459Szrj if (! found
76*a9fa9459Szrj && bfd_get_flavour (abfd) == bfd_target_coff_flavour
77*a9fa9459Szrj && symcount > 0)
78*a9fa9459Szrj {
79*a9fa9459Szrj if (! parse_coff (abfd, syms, symcount, dhandle))
80*a9fa9459Szrj return NULL;
81*a9fa9459Szrj found = TRUE;
82*a9fa9459Szrj }
83*a9fa9459Szrj
84*a9fa9459Szrj if (! found)
85*a9fa9459Szrj {
86*a9fa9459Szrj if (! no_messages)
87*a9fa9459Szrj non_fatal (_("%s: no recognized debugging information"),
88*a9fa9459Szrj bfd_get_filename (abfd));
89*a9fa9459Szrj return NULL;
90*a9fa9459Szrj }
91*a9fa9459Szrj
92*a9fa9459Szrj return dhandle;
93*a9fa9459Szrj }
94*a9fa9459Szrj
95*a9fa9459Szrj /* Read stabs in sections debugging information from a BFD. */
96*a9fa9459Szrj
97*a9fa9459Szrj static bfd_boolean
read_section_stabs_debugging_info(bfd * abfd,asymbol ** syms,long symcount,void * dhandle,bfd_boolean * pfound)98*a9fa9459Szrj read_section_stabs_debugging_info (bfd *abfd, asymbol **syms, long symcount,
99*a9fa9459Szrj void *dhandle, bfd_boolean *pfound)
100*a9fa9459Szrj {
101*a9fa9459Szrj static struct
102*a9fa9459Szrj {
103*a9fa9459Szrj const char *secname;
104*a9fa9459Szrj const char *strsecname;
105*a9fa9459Szrj }
106*a9fa9459Szrj names[] =
107*a9fa9459Szrj {
108*a9fa9459Szrj { ".stab", ".stabstr" },
109*a9fa9459Szrj { "LC_SYMTAB.stabs", "LC_SYMTAB.stabstr" },
110*a9fa9459Szrj { "$GDB_SYMBOLS$", "$GDB_STRINGS$" }
111*a9fa9459Szrj };
112*a9fa9459Szrj unsigned int i;
113*a9fa9459Szrj void *shandle;
114*a9fa9459Szrj
115*a9fa9459Szrj *pfound = FALSE;
116*a9fa9459Szrj shandle = NULL;
117*a9fa9459Szrj
118*a9fa9459Szrj for (i = 0; i < sizeof names / sizeof names[0]; i++)
119*a9fa9459Szrj {
120*a9fa9459Szrj asection *sec, *strsec;
121*a9fa9459Szrj
122*a9fa9459Szrj sec = bfd_get_section_by_name (abfd, names[i].secname);
123*a9fa9459Szrj strsec = bfd_get_section_by_name (abfd, names[i].strsecname);
124*a9fa9459Szrj if (sec != NULL && strsec != NULL)
125*a9fa9459Szrj {
126*a9fa9459Szrj bfd_size_type stabsize, strsize;
127*a9fa9459Szrj bfd_byte *stabs, *strings;
128*a9fa9459Szrj bfd_byte *stab;
129*a9fa9459Szrj bfd_size_type stroff, next_stroff;
130*a9fa9459Szrj
131*a9fa9459Szrj stabsize = bfd_section_size (abfd, sec);
132*a9fa9459Szrj stabs = (bfd_byte *) xmalloc (stabsize);
133*a9fa9459Szrj if (! bfd_get_section_contents (abfd, sec, stabs, 0, stabsize))
134*a9fa9459Szrj {
135*a9fa9459Szrj fprintf (stderr, "%s: %s: %s\n",
136*a9fa9459Szrj bfd_get_filename (abfd), names[i].secname,
137*a9fa9459Szrj bfd_errmsg (bfd_get_error ()));
138*a9fa9459Szrj return FALSE;
139*a9fa9459Szrj }
140*a9fa9459Szrj
141*a9fa9459Szrj strsize = bfd_section_size (abfd, strsec);
142*a9fa9459Szrj strings = (bfd_byte *) xmalloc (strsize + 1);
143*a9fa9459Szrj if (! bfd_get_section_contents (abfd, strsec, strings, 0, strsize))
144*a9fa9459Szrj {
145*a9fa9459Szrj fprintf (stderr, "%s: %s: %s\n",
146*a9fa9459Szrj bfd_get_filename (abfd), names[i].strsecname,
147*a9fa9459Szrj bfd_errmsg (bfd_get_error ()));
148*a9fa9459Szrj return FALSE;
149*a9fa9459Szrj }
150*a9fa9459Szrj /* Zero terminate the strings table, just in case. */
151*a9fa9459Szrj strings [strsize] = 0;
152*a9fa9459Szrj if (shandle == NULL)
153*a9fa9459Szrj {
154*a9fa9459Szrj shandle = start_stab (dhandle, abfd, TRUE, syms, symcount);
155*a9fa9459Szrj if (shandle == NULL)
156*a9fa9459Szrj return FALSE;
157*a9fa9459Szrj }
158*a9fa9459Szrj
159*a9fa9459Szrj *pfound = TRUE;
160*a9fa9459Szrj
161*a9fa9459Szrj stroff = 0;
162*a9fa9459Szrj next_stroff = 0;
163*a9fa9459Szrj /* PR 17512: file: 078-60391-0.001:0.1. */
164*a9fa9459Szrj for (stab = stabs; stab <= (stabs + stabsize) - 12; stab += 12)
165*a9fa9459Szrj {
166*a9fa9459Szrj unsigned int strx;
167*a9fa9459Szrj int type;
168*a9fa9459Szrj int other ATTRIBUTE_UNUSED;
169*a9fa9459Szrj int desc;
170*a9fa9459Szrj bfd_vma value;
171*a9fa9459Szrj
172*a9fa9459Szrj /* This code presumes 32 bit values. */
173*a9fa9459Szrj
174*a9fa9459Szrj strx = bfd_get_32 (abfd, stab);
175*a9fa9459Szrj type = bfd_get_8 (abfd, stab + 4);
176*a9fa9459Szrj other = bfd_get_8 (abfd, stab + 5);
177*a9fa9459Szrj desc = bfd_get_16 (abfd, stab + 6);
178*a9fa9459Szrj value = bfd_get_32 (abfd, stab + 8);
179*a9fa9459Szrj
180*a9fa9459Szrj if (type == 0)
181*a9fa9459Szrj {
182*a9fa9459Szrj /* Special type 0 stabs indicate the offset to the
183*a9fa9459Szrj next string table. */
184*a9fa9459Szrj stroff = next_stroff;
185*a9fa9459Szrj next_stroff += value;
186*a9fa9459Szrj }
187*a9fa9459Szrj else
188*a9fa9459Szrj {
189*a9fa9459Szrj size_t len;
190*a9fa9459Szrj char *f, *s;
191*a9fa9459Szrj
192*a9fa9459Szrj if (stroff + strx >= strsize)
193*a9fa9459Szrj {
194*a9fa9459Szrj fprintf (stderr, _("%s: %s: stab entry %ld is corrupt, strx = 0x%x, type = %d\n"),
195*a9fa9459Szrj bfd_get_filename (abfd), names[i].secname,
196*a9fa9459Szrj (long) (stab - stabs) / 12, strx, type);
197*a9fa9459Szrj continue;
198*a9fa9459Szrj }
199*a9fa9459Szrj
200*a9fa9459Szrj s = (char *) strings + stroff + strx;
201*a9fa9459Szrj f = NULL;
202*a9fa9459Szrj
203*a9fa9459Szrj /* PR 17512: file: 002-87578-0.001:0.1.
204*a9fa9459Szrj It is possible to craft a file where, without the 'strlen (s) > 0',
205*a9fa9459Szrj an attempt to read the byte before 'strings' would occur. */
206*a9fa9459Szrj while ((len = strlen (s)) > 0
207*a9fa9459Szrj && s[len - 1] == '\\'
208*a9fa9459Szrj && stab + 12 < stabs + stabsize)
209*a9fa9459Szrj {
210*a9fa9459Szrj char *p;
211*a9fa9459Szrj
212*a9fa9459Szrj stab += 12;
213*a9fa9459Szrj p = s + len - 1;
214*a9fa9459Szrj *p = '\0';
215*a9fa9459Szrj strx = stroff + bfd_get_32 (abfd, stab);
216*a9fa9459Szrj if (strx >= strsize)
217*a9fa9459Szrj {
218*a9fa9459Szrj fprintf (stderr, _("%s: %s: stab entry %ld is corrupt\n"),
219*a9fa9459Szrj bfd_get_filename (abfd), names[i].secname,
220*a9fa9459Szrj (long) (stab - stabs) / 12);
221*a9fa9459Szrj break;
222*a9fa9459Szrj }
223*a9fa9459Szrj else
224*a9fa9459Szrj s = concat (s, (char *) strings + strx,
225*a9fa9459Szrj (const char *) NULL);
226*a9fa9459Szrj
227*a9fa9459Szrj /* We have to restore the backslash, because, if
228*a9fa9459Szrj the linker is hashing stabs strings, we may
229*a9fa9459Szrj see the same string more than once. */
230*a9fa9459Szrj *p = '\\';
231*a9fa9459Szrj
232*a9fa9459Szrj if (f != NULL)
233*a9fa9459Szrj free (f);
234*a9fa9459Szrj f = s;
235*a9fa9459Szrj }
236*a9fa9459Szrj
237*a9fa9459Szrj save_stab (type, desc, value, s);
238*a9fa9459Szrj
239*a9fa9459Szrj if (! parse_stab (dhandle, shandle, type, desc, value, s))
240*a9fa9459Szrj {
241*a9fa9459Szrj stab_context ();
242*a9fa9459Szrj free_saved_stabs ();
243*a9fa9459Szrj return FALSE;
244*a9fa9459Szrj }
245*a9fa9459Szrj
246*a9fa9459Szrj /* Don't free f, since I think the stabs code
247*a9fa9459Szrj expects strings to hang around. This should be
248*a9fa9459Szrj straightened out. FIXME. */
249*a9fa9459Szrj }
250*a9fa9459Szrj }
251*a9fa9459Szrj
252*a9fa9459Szrj free_saved_stabs ();
253*a9fa9459Szrj free (stabs);
254*a9fa9459Szrj
255*a9fa9459Szrj /* Don't free strings, since I think the stabs code expects
256*a9fa9459Szrj the strings to hang around. This should be straightened
257*a9fa9459Szrj out. FIXME. */
258*a9fa9459Szrj }
259*a9fa9459Szrj }
260*a9fa9459Szrj
261*a9fa9459Szrj if (shandle != NULL)
262*a9fa9459Szrj {
263*a9fa9459Szrj if (! finish_stab (dhandle, shandle))
264*a9fa9459Szrj return FALSE;
265*a9fa9459Szrj }
266*a9fa9459Szrj
267*a9fa9459Szrj return TRUE;
268*a9fa9459Szrj }
269*a9fa9459Szrj
270*a9fa9459Szrj /* Read stabs in the symbol table. */
271*a9fa9459Szrj
272*a9fa9459Szrj static bfd_boolean
read_symbol_stabs_debugging_info(bfd * abfd,asymbol ** syms,long symcount,void * dhandle,bfd_boolean * pfound)273*a9fa9459Szrj read_symbol_stabs_debugging_info (bfd *abfd, asymbol **syms, long symcount,
274*a9fa9459Szrj void *dhandle, bfd_boolean *pfound)
275*a9fa9459Szrj {
276*a9fa9459Szrj void *shandle;
277*a9fa9459Szrj asymbol **ps, **symend;
278*a9fa9459Szrj
279*a9fa9459Szrj shandle = NULL;
280*a9fa9459Szrj symend = syms + symcount;
281*a9fa9459Szrj for (ps = syms; ps < symend; ps++)
282*a9fa9459Szrj {
283*a9fa9459Szrj symbol_info i;
284*a9fa9459Szrj
285*a9fa9459Szrj bfd_get_symbol_info (abfd, *ps, &i);
286*a9fa9459Szrj
287*a9fa9459Szrj if (i.type == '-')
288*a9fa9459Szrj {
289*a9fa9459Szrj const char *s;
290*a9fa9459Szrj char *f;
291*a9fa9459Szrj
292*a9fa9459Szrj if (shandle == NULL)
293*a9fa9459Szrj {
294*a9fa9459Szrj shandle = start_stab (dhandle, abfd, FALSE, syms, symcount);
295*a9fa9459Szrj if (shandle == NULL)
296*a9fa9459Szrj return FALSE;
297*a9fa9459Szrj }
298*a9fa9459Szrj
299*a9fa9459Szrj *pfound = TRUE;
300*a9fa9459Szrj
301*a9fa9459Szrj s = i.name;
302*a9fa9459Szrj f = NULL;
303*a9fa9459Szrj while (s[strlen (s) - 1] == '\\'
304*a9fa9459Szrj && ps + 1 < symend)
305*a9fa9459Szrj {
306*a9fa9459Szrj char *sc, *n;
307*a9fa9459Szrj
308*a9fa9459Szrj ++ps;
309*a9fa9459Szrj sc = xstrdup (s);
310*a9fa9459Szrj sc[strlen (sc) - 1] = '\0';
311*a9fa9459Szrj n = concat (sc, bfd_asymbol_name (*ps), (const char *) NULL);
312*a9fa9459Szrj free (sc);
313*a9fa9459Szrj if (f != NULL)
314*a9fa9459Szrj free (f);
315*a9fa9459Szrj f = n;
316*a9fa9459Szrj s = n;
317*a9fa9459Szrj }
318*a9fa9459Szrj
319*a9fa9459Szrj save_stab (i.stab_type, i.stab_desc, i.value, s);
320*a9fa9459Szrj
321*a9fa9459Szrj if (! parse_stab (dhandle, shandle, i.stab_type, i.stab_desc,
322*a9fa9459Szrj i.value, s))
323*a9fa9459Szrj {
324*a9fa9459Szrj stab_context ();
325*a9fa9459Szrj free_saved_stabs ();
326*a9fa9459Szrj return FALSE;
327*a9fa9459Szrj }
328*a9fa9459Szrj
329*a9fa9459Szrj /* Don't free f, since I think the stabs code expects
330*a9fa9459Szrj strings to hang around. This should be straightened out.
331*a9fa9459Szrj FIXME. */
332*a9fa9459Szrj }
333*a9fa9459Szrj }
334*a9fa9459Szrj
335*a9fa9459Szrj free_saved_stabs ();
336*a9fa9459Szrj
337*a9fa9459Szrj if (shandle != NULL)
338*a9fa9459Szrj {
339*a9fa9459Szrj if (! finish_stab (dhandle, shandle))
340*a9fa9459Szrj return FALSE;
341*a9fa9459Szrj }
342*a9fa9459Szrj
343*a9fa9459Szrj return TRUE;
344*a9fa9459Szrj }
345*a9fa9459Szrj
346*a9fa9459Szrj /* Read IEEE debugging information. */
347*a9fa9459Szrj
348*a9fa9459Szrj static bfd_boolean
read_ieee_debugging_info(bfd * abfd,void * dhandle,bfd_boolean * pfound)349*a9fa9459Szrj read_ieee_debugging_info (bfd *abfd, void *dhandle, bfd_boolean *pfound)
350*a9fa9459Szrj {
351*a9fa9459Szrj asection *dsec;
352*a9fa9459Szrj bfd_size_type size;
353*a9fa9459Szrj bfd_byte *contents;
354*a9fa9459Szrj
355*a9fa9459Szrj /* The BFD backend puts the debugging information into a section
356*a9fa9459Szrj named .debug. */
357*a9fa9459Szrj
358*a9fa9459Szrj dsec = bfd_get_section_by_name (abfd, ".debug");
359*a9fa9459Szrj if (dsec == NULL)
360*a9fa9459Szrj return TRUE;
361*a9fa9459Szrj
362*a9fa9459Szrj size = bfd_section_size (abfd, dsec);
363*a9fa9459Szrj contents = (bfd_byte *) xmalloc (size);
364*a9fa9459Szrj if (! bfd_get_section_contents (abfd, dsec, contents, 0, size))
365*a9fa9459Szrj return FALSE;
366*a9fa9459Szrj
367*a9fa9459Szrj if (! parse_ieee (dhandle, abfd, contents, size))
368*a9fa9459Szrj return FALSE;
369*a9fa9459Szrj
370*a9fa9459Szrj free (contents);
371*a9fa9459Szrj
372*a9fa9459Szrj *pfound = TRUE;
373*a9fa9459Szrj
374*a9fa9459Szrj return TRUE;
375*a9fa9459Szrj }
376*a9fa9459Szrj
377*a9fa9459Szrj /* Record stabs strings, so that we can give some context for errors. */
378*a9fa9459Szrj
379*a9fa9459Szrj #define SAVE_STABS_COUNT (16)
380*a9fa9459Szrj
381*a9fa9459Szrj struct saved_stab
382*a9fa9459Szrj {
383*a9fa9459Szrj int type;
384*a9fa9459Szrj int desc;
385*a9fa9459Szrj bfd_vma value;
386*a9fa9459Szrj char *string;
387*a9fa9459Szrj };
388*a9fa9459Szrj
389*a9fa9459Szrj static struct saved_stab saved_stabs[SAVE_STABS_COUNT];
390*a9fa9459Szrj static int saved_stabs_index;
391*a9fa9459Szrj
392*a9fa9459Szrj /* Save a stabs string. */
393*a9fa9459Szrj
394*a9fa9459Szrj static void
save_stab(int type,int desc,bfd_vma value,const char * string)395*a9fa9459Szrj save_stab (int type, int desc, bfd_vma value, const char *string)
396*a9fa9459Szrj {
397*a9fa9459Szrj if (saved_stabs[saved_stabs_index].string != NULL)
398*a9fa9459Szrj free (saved_stabs[saved_stabs_index].string);
399*a9fa9459Szrj saved_stabs[saved_stabs_index].type = type;
400*a9fa9459Szrj saved_stabs[saved_stabs_index].desc = desc;
401*a9fa9459Szrj saved_stabs[saved_stabs_index].value = value;
402*a9fa9459Szrj saved_stabs[saved_stabs_index].string = xstrdup (string);
403*a9fa9459Szrj saved_stabs_index = (saved_stabs_index + 1) % SAVE_STABS_COUNT;
404*a9fa9459Szrj }
405*a9fa9459Szrj
406*a9fa9459Szrj /* Provide context for an error. */
407*a9fa9459Szrj
408*a9fa9459Szrj static void
stab_context(void)409*a9fa9459Szrj stab_context (void)
410*a9fa9459Szrj {
411*a9fa9459Szrj int i;
412*a9fa9459Szrj
413*a9fa9459Szrj fprintf (stderr, _("Last stabs entries before error:\n"));
414*a9fa9459Szrj fprintf (stderr, "n_type n_desc n_value string\n");
415*a9fa9459Szrj
416*a9fa9459Szrj i = saved_stabs_index;
417*a9fa9459Szrj do
418*a9fa9459Szrj {
419*a9fa9459Szrj struct saved_stab *stabp;
420*a9fa9459Szrj
421*a9fa9459Szrj stabp = saved_stabs + i;
422*a9fa9459Szrj if (stabp->string != NULL)
423*a9fa9459Szrj {
424*a9fa9459Szrj const char *s;
425*a9fa9459Szrj
426*a9fa9459Szrj s = bfd_get_stab_name (stabp->type);
427*a9fa9459Szrj if (s != NULL)
428*a9fa9459Szrj fprintf (stderr, "%-6s", s);
429*a9fa9459Szrj else if (stabp->type == 0)
430*a9fa9459Szrj fprintf (stderr, "HdrSym");
431*a9fa9459Szrj else
432*a9fa9459Szrj fprintf (stderr, "%-6d", stabp->type);
433*a9fa9459Szrj fprintf (stderr, " %-6d ", stabp->desc);
434*a9fa9459Szrj fprintf_vma (stderr, stabp->value);
435*a9fa9459Szrj if (stabp->type != 0)
436*a9fa9459Szrj fprintf (stderr, " %s", stabp->string);
437*a9fa9459Szrj fprintf (stderr, "\n");
438*a9fa9459Szrj }
439*a9fa9459Szrj i = (i + 1) % SAVE_STABS_COUNT;
440*a9fa9459Szrj }
441*a9fa9459Szrj while (i != saved_stabs_index);
442*a9fa9459Szrj }
443*a9fa9459Szrj
444*a9fa9459Szrj /* Free the saved stab strings. */
445*a9fa9459Szrj
446*a9fa9459Szrj static void
free_saved_stabs(void)447*a9fa9459Szrj free_saved_stabs (void)
448*a9fa9459Szrj {
449*a9fa9459Szrj int i;
450*a9fa9459Szrj
451*a9fa9459Szrj for (i = 0; i < SAVE_STABS_COUNT; i++)
452*a9fa9459Szrj {
453*a9fa9459Szrj if (saved_stabs[i].string != NULL)
454*a9fa9459Szrj {
455*a9fa9459Szrj free (saved_stabs[i].string);
456*a9fa9459Szrj saved_stabs[i].string = NULL;
457*a9fa9459Szrj }
458*a9fa9459Szrj }
459*a9fa9459Szrj
460*a9fa9459Szrj saved_stabs_index = 0;
461*a9fa9459Szrj }
462