[thirdparty/binutils-gdb.git] / gold / testsuite / plugin_test.c

/* test_plugin.c -- simple linker plugin test

   Copyright 2008 Free Software Foundation, Inc.
   Written by Cary Coutant <ccoutant@google.com>.

   This file is part of gold.

   This program is free software; you can redistribute it and/or modify
   it under the terms of the GNU General Public License as published by
   the Free Software Foundation; either version 3 of the License, or
   (at your option) any later version.

   This program is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
   GNU General Public License for more details.

   You should have received a copy of the GNU General Public License
   along with this program; if not, write to the Free Software
   Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
   MA 02110-1301, USA.  */

#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include "plugin-api.h"

struct claimed_file
{
  const char* name;
  void* handle;
  int nsyms;
  struct ld_plugin_symbol* syms;
  struct claimed_file* next;
};

static struct claimed_file* first_claimed_file = NULL;
static struct claimed_file* last_claimed_file = NULL;

static ld_plugin_register_claim_file register_claim_file_hook = NULL;
static ld_plugin_register_all_symbols_read register_all_symbols_read_hook = NULL;
static ld_plugin_register_cleanup register_cleanup_hook = NULL;
static ld_plugin_add_symbols add_symbols = NULL;
static ld_plugin_get_symbols get_symbols = NULL;
static ld_plugin_add_input_file add_input_file = NULL;
static ld_plugin_message message = NULL;

#define MAXOPTS 10

static const char *opts[MAXOPTS];
static int nopts = 0;

enum ld_plugin_status onload(struct ld_plugin_tv *tv);
enum ld_plugin_status claim_file_hook(const struct ld_plugin_input_file *file,
                                      int *claimed);
enum ld_plugin_status all_symbols_read_hook(void);
enum ld_plugin_status cleanup_hook(void);

enum ld_plugin_status
onload(struct ld_plugin_tv *tv)
{
  struct ld_plugin_tv *entry;
  int api_version = 0;
  int gold_version = 0;
  int i;

  for (entry = tv; entry->tv_tag != LDPT_NULL; ++entry)
    {
      switch (entry->tv_tag)
        {
        case LDPT_API_VERSION:
          api_version = entry->tv_u.tv_val;
          break;
        case LDPT_GOLD_VERSION:
          gold_version = entry->tv_u.tv_val;
          break;
        case LDPT_LINKER_OUTPUT:
          break;
        case LDPT_OPTION:
          if (nopts < MAXOPTS)
            opts[nopts++] = entry->tv_u.tv_string;
          break;
        case LDPT_REGISTER_CLAIM_FILE_HOOK:
          register_claim_file_hook = entry->tv_u.tv_register_claim_file;
          break;
        case LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK:
          register_all_symbols_read_hook =
            entry->tv_u.tv_register_all_symbols_read;
          break;
        case LDPT_REGISTER_CLEANUP_HOOK:
          register_cleanup_hook = entry->tv_u.tv_register_cleanup;
          break;
        case LDPT_ADD_SYMBOLS:
          add_symbols = entry->tv_u.tv_add_symbols;
          break;
        case LDPT_GET_SYMBOLS:
          get_symbols = entry->tv_u.tv_get_symbols;
          break;
        case LDPT_ADD_INPUT_FILE:
          add_input_file = entry->tv_u.tv_add_input_file;
          break;
        case LDPT_MESSAGE:
          message = entry->tv_u.tv_message;
          break;
        default:
          break;
        }
    }

  if (message == NULL)
    {
      fprintf(stderr, "tv_message interface missing\n");
      return LDPS_ERR;
    }

  if (register_claim_file_hook == NULL)
    {
      fprintf(stderr, "tv_register_claim_file_hook interface missing\n");
      return LDPS_ERR;
    }

  if (register_all_symbols_read_hook == NULL)
    {
      fprintf(stderr, "tv_register_all_symbols_read_hook interface missing\n");
      return LDPS_ERR;
    }

  if (register_cleanup_hook == NULL)
    {
      fprintf(stderr, "tv_register_cleanup_hook interface missing\n");
      return LDPS_ERR;
    }

  (*message)(LDPL_INFO, "API version:   %d", api_version);
  (*message)(LDPL_INFO, "gold version:  %d", gold_version);

  for (i = 0; i < nopts; ++i)
    (*message)(LDPL_INFO, "option: %s", opts[i]);

  if ((*register_claim_file_hook)(claim_file_hook) != LDPS_OK)
    {
      (*message)(LDPL_ERROR, "error registering claim file hook");
      return LDPS_ERR;
    }

  if ((*register_all_symbols_read_hook)(all_symbols_read_hook) != LDPS_OK)
    {
      (*message)(LDPL_ERROR, "error registering all symbols read hook");
      return LDPS_ERR;
    }

  if ((*register_cleanup_hook)(cleanup_hook) != LDPS_OK)
    {
      (*message)(LDPL_ERROR, "error registering cleanup hook");
      return LDPS_ERR;
    }

  return LDPS_OK;
}

enum ld_plugin_status
claim_file_hook (const struct ld_plugin_input_file* file, int* claimed)
{
  int len;
  char buf[160];
  struct claimed_file* claimed_file;
  struct ld_plugin_symbol* syms;
  int nsyms = 0;
  int maxsyms = 0;
  FILE* irfile;
  char *p;
  char *pbind;
  char *pvis;
  char *psect;
  int weak;
  int def;
  int vis;
  int size;
  char* name;
  int is_comdat;
  int i;

  (*message)(LDPL_INFO,
             "%s: claim file hook called (offset = %ld, size = %ld)",
             file->name, (long)file->offset, (long)file->filesize);

  /* Look for the beginning of output from readelf -s.  */
  irfile = fdopen(file->fd, "r");
  (void)fseek(irfile, file->offset, SEEK_SET);
  len = fread(buf, 1, 13, irfile);
  if (len < 13 || strncmp(buf, "\nSymbol table", 13) != 0)
    return LDPS_OK;

  /* Skip the two header lines.  */
  (void) fgets(buf, sizeof(buf), irfile);
  (void) fgets(buf, sizeof(buf), irfile);

  if (add_symbols == NULL)
    {
      fprintf(stderr, "tv_add_symbols interface missing\n");
      return LDPS_ERR;
    }

  /* Parse the output from readelf. The columns are:
     Index Value Size Type Binding Visibility Section Name.  */
  syms = (struct ld_plugin_symbol*)malloc(sizeof(struct ld_plugin_symbol) * 8);
  if (syms == NULL)
    return LDPS_ERR;
  maxsyms = 8;
  while (fgets(buf, sizeof(buf), irfile) != NULL)
    {
      p = buf;
      p += strspn(p, " ");

      /* Index field.  */
      p += strcspn(p, " ");
      p += strspn(p, " ");

      /* Value field.  */
      p += strcspn(p, " ");
      p += strspn(p, " ");

      /* Size field.  */
      size = atoi(p);
      p += strcspn(p, " ");
      p += strspn(p, " ");

      /* Type field.  */
      p += strcspn(p, " ");
      p += strspn(p, " ");

      /* Binding field.  */
      pbind = p;
      p += strcspn(p, " ");
      p += strspn(p, " ");

      /* Visibility field.  */
      pvis = p;
      p += strcspn(p, " ");
      p += strspn(p, " ");

      /* Section field.  */
      psect = p;
      p += strcspn(p, " ");
      p += strspn(p, " ");

      /* Name field.  */
      /* FIXME:  Look for version.  */
      len = strlen(p);
      if (p[len-1] == '\n')
        p[--len] = '\0';
      name = malloc(len + 1);
      strncpy(name, p, len + 1);

      /* Ignore local symbols.  */
      if (strncmp(pbind, "LOCAL", 5) == 0)
        continue;

      weak = strncmp(pbind, "WEAK", 4) == 0;
      if (strncmp(psect, "UND", 3) == 0)
        def = weak ? LDPK_WEAKUNDEF : LDPK_UNDEF;
      else if (strncmp(psect, "COM", 3) == 0)
        def = LDPK_COMMON;
      else
        def = weak ? LDPK_WEAKDEF : LDPK_DEF;

      if (strncmp(pvis, "INTERNAL", 8) == 0)
        vis = LDPV_INTERNAL;
      else if (strncmp(pvis, "HIDDEN", 6) == 0)
        vis = LDPV_HIDDEN;
      else if (strncmp(pvis, "PROTECTED", 9) == 0)
        vis = LDPV_PROTECTED;
      else
        vis = LDPV_DEFAULT;

      /* If the symbol is listed in the options list, special-case
         it as a comdat symbol.  */
      is_comdat = 0;
      for (i = 0; i < nopts; ++i)
        {
          if (name != NULL && strcmp(name, opts[i]) == 0)
            {
              is_comdat = 1;
              break;
            }
        }

      if (nsyms >= maxsyms)
        {
          syms = (struct ld_plugin_symbol*)
            realloc(syms, sizeof(struct ld_plugin_symbol) * maxsyms * 2);
          if (syms == NULL)
            return LDPS_ERR;
          maxsyms *= 2;
        }

      syms[nsyms].name = name;
      syms[nsyms].version = NULL;
      syms[nsyms].def = def;
      syms[nsyms].visibility = vis;
      syms[nsyms].size = size;
      syms[nsyms].comdat_key = is_comdat ? name : NULL;
      syms[nsyms].resolution = LDPR_UNKNOWN;
      ++nsyms;
    }

  claimed_file = (struct claimed_file*) malloc(sizeof(struct claimed_file));
  if (claimed_file == NULL)
    return LDPS_ERR;

  claimed_file->name = file->name;
  claimed_file->handle = file->handle;
  claimed_file->nsyms = nsyms;
  claimed_file->syms = syms;
  claimed_file->next = NULL;
  if (last_claimed_file == NULL)
    first_claimed_file = claimed_file;
  else
    last_claimed_file->next = claimed_file;
  last_claimed_file = claimed_file;

  (*add_symbols)(file->handle, nsyms, syms);

  *claimed = 1;
  return LDPS_OK;
}

enum ld_plugin_status
all_symbols_read_hook(void)
{
  int i;
  const char* res;
  struct claimed_file* claimed_file;
  char buf[160];
  char *p;

  (*message)(LDPL_INFO, "all symbols read hook called");

  if (get_symbols == NULL)
    {
      fprintf(stderr, "tv_get_symbols interface missing\n");
      return LDPS_ERR;
    }

  for (claimed_file = first_claimed_file;
       claimed_file != NULL;
       claimed_file = claimed_file->next)
    {
      (*get_symbols)(claimed_file->handle, claimed_file->nsyms,
                     claimed_file->syms);
      for (i = 0; i < claimed_file->nsyms; ++i)
        {
          switch (claimed_file->syms[i].resolution)
            {
            case LDPR_UNKNOWN:
              res = "UNKNOWN";
              break;
            case LDPR_UNDEF:
              res = "UNDEF";
              break;
            case LDPR_PREVAILING_DEF:
              res = "PREVAILING_DEF_REG";
              break;
            case LDPR_PREVAILING_DEF_IRONLY:
              res = "PREVAILING_DEF_IRONLY";
              break;
            case LDPR_PREEMPTED_REG:
              res = "PREEMPTED_REG";
              break;
            case LDPR_PREEMPTED_IR:
              res = "PREEMPTED_IR";
              break;
            case LDPR_RESOLVED_IR:
              res = "RESOLVED_IR";
              break;
            case LDPR_RESOLVED_EXEC:
              res = "RESOLVED_EXEC";
              break;
            case LDPR_RESOLVED_DYN:
              res = "RESOLVED_DYN";
              break;
            default:
              res = "?";
              break;
            }
          (*message)(LDPL_INFO, "%s: %s: %s", claimed_file->name,
                     claimed_file->syms[i].name, res);
        }
    }

  if (add_input_file == NULL)
    {
      fprintf(stderr, "tv_add_input_file interface missing\n");
      return LDPS_ERR;
    }

  for (claimed_file = first_claimed_file;
       claimed_file != NULL;
       claimed_file = claimed_file->next)
    {
      if (strlen(claimed_file->name) >= sizeof(buf))
        {
          (*message)(LDPL_FATAL, "%s: filename too long", claimed_file->name);
          return LDPS_ERR;
        }
      strcpy(buf, claimed_file->name);
      p = strrchr(buf, '.');
      if (p == NULL || strcmp(p, ".syms") != 0)
        {
          (*message)(LDPL_FATAL, "%s: filename must have '.syms' suffix",
                     claimed_file->name);
          return LDPS_ERR;
        }
      p[1] = 'o';
      p[2] = '\0';
      (*add_input_file)(buf);
    }

  return LDPS_OK;
}

enum ld_plugin_status
cleanup_hook(void)
{
  (*message)(LDPL_INFO, "cleanup hook called");
  return LDPS_OK;
}
Commit	Line	Data
89fc3421 CC	1	/* test_plugin.c -- simple linker plugin test
	2
	3	Copyright 2008 Free Software Foundation, Inc.
	4	Written by Cary Coutant <ccoutant@google.com>.
	5
	6	This file is part of gold.
	7
	8	This program is free software; you can redistribute it and/or modify
	9	it under the terms of the GNU General Public License as published by
	10	the Free Software Foundation; either version 3 of the License, or
	11	(at your option) any later version.
	12
	13	This program is distributed in the hope that it will be useful,
	14	but WITHOUT ANY WARRANTY; without even the implied warranty of
	15	MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	16	GNU General Public License for more details.
	17
	18	You should have received a copy of the GNU General Public License
	19	along with this program; if not, write to the Free Software
	20	Foundation, Inc., 51 Franklin Street - Fifth Floor, Boston,
	21	MA 02110-1301, USA. */
	22
	23	#include <stdio.h>
	24	#include <stdlib.h>
	25	#include <string.h>
	26	#include "plugin-api.h"
	27
	28	struct claimed_file
	29	{
	30	const char* name;
	31	void* handle;
	32	int nsyms;
	33	struct ld_plugin_symbol* syms;
	34	struct claimed_file* next;
	35	};
	36
	37	static struct claimed_file* first_claimed_file = NULL;
	38	static struct claimed_file* last_claimed_file = NULL;
	39
	40	static ld_plugin_register_claim_file register_claim_file_hook = NULL;
	41	static ld_plugin_register_all_symbols_read register_all_symbols_read_hook = NULL;
	42	static ld_plugin_register_cleanup register_cleanup_hook = NULL;
	43	static ld_plugin_add_symbols add_symbols = NULL;
	44	static ld_plugin_get_symbols get_symbols = NULL;
	45	static ld_plugin_add_input_file add_input_file = NULL;
	46	static ld_plugin_message message = NULL;
	47
	48	#define MAXOPTS 10
	49
	50	static const char *opts[MAXOPTS];
	51	static int nopts = 0;
	52
	53	enum ld_plugin_status onload(struct ld_plugin_tv *tv);
	54	enum ld_plugin_status claim_file_hook(const struct ld_plugin_input_file *file,
	55	int *claimed);
	56	enum ld_plugin_status all_symbols_read_hook(void);
	57	enum ld_plugin_status cleanup_hook(void);
	58
	59	enum ld_plugin_status
	60	onload(struct ld_plugin_tv *tv)
	61	{
	62	struct ld_plugin_tv *entry;
	63	int api_version = 0;
	64	int gold_version = 0;
65	int i;
66
67	for (entry = tv; entry->tv_tag != LDPT_NULL; ++entry)
68	{
69	switch (entry->tv_tag)
70	{
71	case LDPT_API_VERSION:
72	api_version = entry->tv_u.tv_val;
73	break;
74	case LDPT_GOLD_VERSION:
75	gold_version = entry->tv_u.tv_val;
76	break;
77	case LDPT_LINKER_OUTPUT:
78	break;
79	case LDPT_OPTION:
80	if (nopts < MAXOPTS)
81	opts[nopts++] = entry->tv_u.tv_string;
82	break;
83	case LDPT_REGISTER_CLAIM_FILE_HOOK:
84	register_claim_file_hook = entry->tv_u.tv_register_claim_file;
85	break;
86	case LDPT_REGISTER_ALL_SYMBOLS_READ_HOOK:
87	register_all_symbols_read_hook =
88	entry->tv_u.tv_register_all_symbols_read;
89	break;
90	case LDPT_REGISTER_CLEANUP_HOOK:
91	register_cleanup_hook = entry->tv_u.tv_register_cleanup;
92	break;
93	case LDPT_ADD_SYMBOLS:
94	add_symbols = entry->tv_u.tv_add_symbols;
95	break;
96	case LDPT_GET_SYMBOLS:
97	get_symbols = entry->tv_u.tv_get_symbols;
98	break;
99	case LDPT_ADD_INPUT_FILE:
100	add_input_file = entry->tv_u.tv_add_input_file;
101	break;
102	case LDPT_MESSAGE:
103	message = entry->tv_u.tv_message;
104	break;
105	default:
106	break;
107	}
108	}
109
110	if (message == NULL)
111	{
112	fprintf(stderr, "tv_message interface missing\n");
113	return LDPS_ERR;
114	}
115
116	if (register_claim_file_hook == NULL)
117	{
118	fprintf(stderr, "tv_register_claim_file_hook interface missing\n");
119	return LDPS_ERR;
120	}
121
122	if (register_all_symbols_read_hook == NULL)
123	{
124	fprintf(stderr, "tv_register_all_symbols_read_hook interface missing\n");
125	return LDPS_ERR;
126	}
127
128	if (register_cleanup_hook == NULL)
129	{
130	fprintf(stderr, "tv_register_cleanup_hook interface missing\n");
131	return LDPS_ERR;
132	}
133
134	(*message)(LDPL_INFO, "API version: %d", api_version);
135	(*message)(LDPL_INFO, "gold version: %d", gold_version);
136
137	for (i = 0; i < nopts; ++i)
138	(*message)(LDPL_INFO, "option: %s", opts[i]);
139
140	if ((*register_claim_file_hook)(claim_file_hook) != LDPS_OK)
141	{
142	(*message)(LDPL_ERROR, "error registering claim file hook");
143	return LDPS_ERR;
144	}
145
146	if ((*register_all_symbols_read_hook)(all_symbols_read_hook) != LDPS_OK)
147	{
148	(*message)(LDPL_ERROR, "error registering all symbols read hook");
149	return LDPS_ERR;
150	}
151
152	if ((*register_cleanup_hook)(cleanup_hook) != LDPS_OK)
153	{
154	(*message)(LDPL_ERROR, "error registering cleanup hook");
155	return LDPS_ERR;
156	}
157
158	return LDPS_OK;
159	}
160
161	enum ld_plugin_status
162	claim_file_hook (const struct ld_plugin_input_file* file, int* claimed)
163	{
164	int len;
165	char buf[160];
166	struct claimed_file* claimed_file;
167	struct ld_plugin_symbol* syms;
168	int nsyms = 0;
169	int maxsyms = 0;
170	FILE* irfile;
171	char *p;
172	char *pbind;
173	char *pvis;
174	char *psect;
175	int weak;
176	int def;
177	int vis;
178	int size;
179	char* name;
180	int is_comdat;
181	int i;
182
183	(*message)(LDPL_INFO,
184	"%s: claim file hook called (offset = %ld, size = %ld)",
185	file->name, (long)file->offset, (long)file->filesize);
186
187	/* Look for the beginning of output from readelf -s. */
188	irfile = fdopen(file->fd, "r");
189	(void)fseek(irfile, file->offset, SEEK_SET);
190	len = fread(buf, 1, 13, irfile);
191	if (len < 13 \|\| strncmp(buf, "\nSymbol table", 13) != 0)
192	return LDPS_OK;
193
194	/* Skip the two header lines. */
195	(void) fgets(buf, sizeof(buf), irfile);
196	(void) fgets(buf, sizeof(buf), irfile);
197
198	if (add_symbols == NULL)
199	{
200	fprintf(stderr, "tv_add_symbols interface missing\n");
201	return LDPS_ERR;
202	}
203
204	/* Parse the output from readelf. The columns are:
205	Index Value Size Type Binding Visibility Section Name. */
206	syms = (struct ld_plugin_symbol)malloc(sizeof(struct ld_plugin_symbol) 8);
207	if (syms == NULL)
208	return LDPS_ERR;
209	maxsyms = 8;
210	while (fgets(buf, sizeof(buf), irfile) != NULL)
211	{
212	p = buf;
213	p += strspn(p, " ");
214
215	/* Index field. */
216	p += strcspn(p, " ");
217	p += strspn(p, " ");
218
219	/* Value field. */
220	p += strcspn(p, " ");
221	p += strspn(p, " ");
222
223	/* Size field. */
224	size = atoi(p);
225	p += strcspn(p, " ");
226	p += strspn(p, " ");
227
228	/* Type field. */
229	p += strcspn(p, " ");
230	p += strspn(p, " ");
231
232	/* Binding field. */
233	pbind = p;
234	p += strcspn(p, " ");
235	p += strspn(p, " ");
236
237	/* Visibility field. */
238	pvis = p;
239	p += strcspn(p, " ");
240	p += strspn(p, " ");
241
242	/* Section field. */
243	psect = p;
244	p += strcspn(p, " ");
245	p += strspn(p, " ");
246
247	/* Name field. */
248	/* FIXME: Look for version. */
249	len = strlen(p);
250	if (p[len-1] == '\n')
251	p[--len] = '\0';
252	name = malloc(len + 1);
253	strncpy(name, p, len + 1);
254
255	/* Ignore local symbols. */
256	if (strncmp(pbind, "LOCAL", 5) == 0)
257	continue;
258
259	weak = strncmp(pbind, "WEAK", 4) == 0;
260	if (strncmp(psect, "UND", 3) == 0)
261	def = weak ? LDPK_WEAKUNDEF : LDPK_UNDEF;
262	else if (strncmp(psect, "COM", 3) == 0)
263	def = LDPK_COMMON;
264	else
265	def = weak ? LDPK_WEAKDEF : LDPK_DEF;
266
267	if (strncmp(pvis, "INTERNAL", 8) == 0)
268	vis = LDPV_INTERNAL;
269	else if (strncmp(pvis, "HIDDEN", 6) == 0)
270	vis = LDPV_HIDDEN;
271	else if (strncmp(pvis, "PROTECTED", 9) == 0)
272	vis = LDPV_PROTECTED;
273	else
274	vis = LDPV_DEFAULT;
275
276	/* If the symbol is listed in the options list, special-case
277	it as a comdat symbol. */
278	is_comdat = 0;
279	for (i = 0; i < nopts; ++i)
280	{
281	if (name != NULL && strcmp(name, opts[i]) == 0)
282	{
283	is_comdat = 1;
284	break;
285	}
286	}
287
288	if (nsyms >= maxsyms)
289	{
290	syms = (struct ld_plugin_symbol*)
291	realloc(syms, sizeof(struct ld_plugin_symbol) * maxsyms * 2);
292	if (syms == NULL)
293	return LDPS_ERR;
294	maxsyms *= 2;
295	}
296
297	syms[nsyms].name = name;
298	syms[nsyms].version = NULL;
299	syms[nsyms].def = def;
300	syms[nsyms].visibility = vis;
301	syms[nsyms].size = size;
302	syms[nsyms].comdat_key = is_comdat ? name : NULL;
303	syms[nsyms].resolution = LDPR_UNKNOWN;
304	++nsyms;
305	}
306
307	claimed_file = (struct claimed_file*) malloc(sizeof(struct claimed_file));
308	if (claimed_file == NULL)
309	return LDPS_ERR;
310
311	claimed_file->name = file->name;
312	claimed_file->handle = file->handle;
313	claimed_file->nsyms = nsyms;
314	claimed_file->syms = syms;
315	claimed_file->next = NULL;
316	if (last_claimed_file == NULL)
317	first_claimed_file = claimed_file;
318	else
319	last_claimed_file->next = claimed_file;
320	last_claimed_file = claimed_file;
321
322	(*add_symbols)(file->handle, nsyms, syms);
323
324	*claimed = 1;
325	return LDPS_OK;
326	}
327
328	enum ld_plugin_status
329	all_symbols_read_hook(void)
330	{
331	int i;
332	const char* res;
333	struct claimed_file* claimed_file;
334	char buf[160];
335	char *p;
336
337	(*message)(LDPL_INFO, "all symbols read hook called");
338
339	if (get_symbols == NULL)
340	{
341	fprintf(stderr, "tv_get_symbols interface missing\n");
342	return LDPS_ERR;
343	}
344
345	for (claimed_file = first_claimed_file;
346	claimed_file != NULL;
347	claimed_file = claimed_file->next)
348	{
349	(*get_symbols)(claimed_file->handle, claimed_file->nsyms,
350	claimed_file->syms);
351	for (i = 0; i < claimed_file->nsyms; ++i)
352	{
353	switch (claimed_file->syms[i].resolution)
354	{
355	case LDPR_UNKNOWN:
356	res = "UNKNOWN";
357	break;
358	case LDPR_UNDEF:
359	res = "UNDEF";
360	break;
361	case LDPR_PREVAILING_DEF:
362	res = "PREVAILING_DEF_REG";
363	break;
364	case LDPR_PREVAILING_DEF_IRONLY:
365	res = "PREVAILING_DEF_IRONLY";
366	break;
367	case LDPR_PREEMPTED_REG:
368	res = "PREEMPTED_REG";
369	break;
370	case LDPR_PREEMPTED_IR:
371	res = "PREEMPTED_IR";
372	break;
373	case LDPR_RESOLVED_IR:
374	res = "RESOLVED_IR";
375	break;
376	case LDPR_RESOLVED_EXEC:
377	res = "RESOLVED_EXEC";
378	break;
379	case LDPR_RESOLVED_DYN:
380	res = "RESOLVED_DYN";
381	break;
382	default:
383	res = "?";
384	break;
385	}
386	(*message)(LDPL_INFO, "%s: %s: %s", claimed_file->name,
387	claimed_file->syms[i].name, res);
388	}
389	}
390
391	if (add_input_file == NULL)
392	{
393	fprintf(stderr, "tv_add_input_file interface missing\n");
394	return LDPS_ERR;
395	}
396
397	for (claimed_file = first_claimed_file;
398	claimed_file != NULL;
399	claimed_file = claimed_file->next)
400	{
401	if (strlen(claimed_file->name) >= sizeof(buf))
402	{
403	(*message)(LDPL_FATAL, "%s: filename too long", claimed_file->name);
404	return LDPS_ERR;
405	}
406	strcpy(buf, claimed_file->name);
407	p = strrchr(buf, '.');
408	if (p == NULL \|\| strcmp(p, ".syms") != 0)
409	{
410	(*message)(LDPL_FATAL, "%s: filename must have '.syms' suffix",
411	claimed_file->name);
412	return LDPS_ERR;
413	}
414	p[1] = 'o';
415	p[2] = '\0';
416	(*add_input_file)(buf);
417	}
418
419	return LDPS_OK;
420	}
421
422	enum ld_plugin_status
423	cleanup_hook(void)
424	{
425	(*message)(LDPL_INFO, "cleanup hook called");
426	return LDPS_OK;
427	}