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Diffstat (limited to 'elf/dl-version.c')
-rw-r--r--elf/dl-version.c180
1 files changed, 92 insertions, 88 deletions
diff --git a/elf/dl-version.c b/elf/dl-version.c
index 239507ee37..6715bc1547 100644
--- a/elf/dl-version.c
+++ b/elf/dl-version.c
@@ -81,6 +81,9 @@ match_symbol (const char *name, ElfW(Word) hash, const char *string,
const char *strtab = (const void *) D_PTR (map, l_info[DT_STRTAB]);
ElfW(Addr) def_offset;
ElfW(Verdef) *def;
+ /* Initialize to make the compiler happy. */
+ const char *errstring = NULL;
+ int result = 0;
/* Display information about what we are doing while debugging. */
if (__builtin_expect (_dl_debug_mask & DL_DEBUG_VERSIONS, 0))
@@ -95,11 +98,12 @@ checking for version `%s' in file %s required by file %s\n",
object was linked against another version of this file. We
only print a message if verbose output is requested. */
if (verbose)
- /* XXX We cannot translate the messages. */
- _dl_signal_cerror (0, map->l_name[0] ? map->l_name : _dl_argv[0], NULL,
- make_string ("\
-no version information available (required by ",
- name, ")"));
+ {
+ /* XXX We cannot translate the messages. */
+ errstring = make_string ("\
+no version information available (required by ", name, ")");
+ goto call_cerror;
+ }
return 0;
}
@@ -116,14 +120,12 @@ no version information available (required by ",
char buf[20];
buf[sizeof (buf) - 1] = '\0';
/* XXX We cannot translate the message. */
- _dl_signal_error (0, map->l_name[0] ? map->l_name : _dl_argv[0],
- NULL,
- make_string ("unsupported version ",
- _itoa_word (def->vd_version,
- &buf[sizeof (buf) - 1],
- 10, 0),
- " of Verdef record"));
- return 1;
+ errstring = make_string ("unsupported version ",
+ _itoa_word (def->vd_version,
+ &buf[sizeof (buf) - 1], 10, 0),
+ " of Verdef record");
+ result = 1;
+ goto call_cerror;
}
/* Compare the hash values. */
@@ -150,19 +152,23 @@ no version information available (required by ",
if (__builtin_expect (weak, 1))
{
if (verbose)
- /* XXX We cannot translate the message. */
- _dl_signal_cerror (0, map->l_name[0] ? map->l_name : _dl_argv[0], NULL,
- make_string ("weak version `", string,
- "' not found (required by ", name,
- ")"));
+ {
+ /* XXX We cannot translate the message. */
+ errstring = make_string ("weak version `", string,
+ "' not found (required by ", name, ")");
+ goto call_cerror;
+ }
return 0;
}
/* XXX We cannot translate the message. */
+ errstring = make_string ("version `", string, "' not found (required by ",
+ name, ")");
+ result = 1;
+ call_cerror:
_dl_signal_cerror (0, map->l_name[0] ? map->l_name : _dl_argv[0], NULL,
- make_string ("version `", string,
- "' not found (required by ", name, ")"));
- return 1;
+ errstring);
+ return result;
}
@@ -179,6 +185,9 @@ _dl_check_map_versions (struct link_map *map, int verbose, int trace_mode)
/* We need to find out which is the highest version index used
in a dependecy. */
unsigned int ndx_high = 0;
+ /* Initialize to make the compiler happy. */
+ const char *errstring = NULL;
+ int errval = 0;
/* If we don't have a string table, we must be ok. */
if (map->l_info[DT_STRTAB] == NULL)
@@ -200,14 +209,13 @@ _dl_check_map_versions (struct link_map *map, int verbose, int trace_mode)
char buf[20];
buf[sizeof (buf) - 1] = '\0';
/* XXX We cannot translate the message. */
- _dl_signal_error (0, (*map->l_name ? map->l_name : _dl_argv[0]),
- NULL,
- make_string ("unsupported version ",
- _itoa_word (ent->vn_version,
- &buf[sizeof (buf) - 1],
- 10, 0),
- " of Verneed record\n"));
- return 1;
+ errstring = make_string ("unsupported version ",
+ _itoa_word (ent->vn_version,
+ &buf[sizeof (buf) - 1], 10, 0),
+ " of Verneed record\n");
+ call_error:
+ _dl_signal_error (errval, (*map->l_name ? map->l_name : _dl_argv[0]),
+ NULL, errstring);
}
while (1)
@@ -290,79 +298,75 @@ _dl_check_map_versions (struct link_map *map, int verbose, int trace_mode)
calloc (ndx_high + 1, sizeof (*map->l_versions));
if (__builtin_expect (map->l_versions == NULL, 0))
{
- _dl_signal_error (ENOMEM, (*map->l_name ? map->l_name : _dl_argv[0]),
- NULL,
- N_("cannot allocate version reference table"));
- result = 1;
+ errstring = N_("cannot allocate version reference table");
+ errval = ENOMEM;
+ goto call_error;
}
- else
- {
- /* Store the number of available symbols. */
- map->l_nversions = ndx_high + 1;
- /* Compute the pointer to the version symbols. */
- map->l_versyms =
- (void *) D_PTR (map, l_info[VERSYMIDX (DT_VERSYM)]);
+ /* Store the number of available symbols. */
+ map->l_nversions = ndx_high + 1;
+
+ /* Compute the pointer to the version symbols. */
+ map->l_versyms = (void *) D_PTR (map, l_info[VERSYMIDX (DT_VERSYM)]);
- if (dyn != NULL)
+ if (dyn != NULL)
+ {
+ ElfW(Verneed) *ent;
+ ent = (ElfW(Verneed) *) (map->l_addr + dyn->d_un.d_ptr);
+ while (1)
{
- ElfW(Verneed) *ent;
- ent = (ElfW(Verneed) *) (map->l_addr + dyn->d_un.d_ptr);
+ ElfW(Vernaux) *aux;
+ aux = (ElfW(Vernaux) *) ((char *) ent + ent->vn_aux);
while (1)
{
- ElfW(Vernaux) *aux;
- aux = (ElfW(Vernaux) *) ((char *) ent + ent->vn_aux);
- while (1)
- {
- ElfW(Half) ndx = aux->vna_other & 0x7fff;
- map->l_versions[ndx].hash = aux->vna_hash;
- map->l_versions[ndx].hidden = aux->vna_other & 0x8000;
- map->l_versions[ndx].name = &strtab[aux->vna_name];
- map->l_versions[ndx].filename = &strtab[ent->vn_file];
-
- if (aux->vna_next == 0)
- /* No more symbols. */
- break;
-
- /* Advance to next symbol. */
- aux = (ElfW(Vernaux) *) ((char *) aux + aux->vna_next);
- }
-
- if (ent->vn_next == 0)
- /* No more dependencies. */
+ ElfW(Half) ndx = aux->vna_other & 0x7fff;
+ map->l_versions[ndx].hash = aux->vna_hash;
+ map->l_versions[ndx].hidden = aux->vna_other & 0x8000;
+ map->l_versions[ndx].name = &strtab[aux->vna_name];
+ map->l_versions[ndx].filename = &strtab[ent->vn_file];
+
+ if (aux->vna_next == 0)
+ /* No more symbols. */
break;
- /* Advance to next dependency. */
- ent = (ElfW(Verneed) *) ((char *) ent + ent->vn_next);
+ /* Advance to next symbol. */
+ aux = (ElfW(Vernaux) *) ((char *) aux + aux->vna_next);
}
+
+ if (ent->vn_next == 0)
+ /* No more dependencies. */
+ break;
+
+ /* Advance to next dependency. */
+ ent = (ElfW(Verneed) *) ((char *) ent + ent->vn_next);
}
+ }
- /* And insert the defined versions. */
- if (def != NULL)
+ /* And insert the defined versions. */
+ if (def != NULL)
+ {
+ ElfW(Verdef) *ent;
+ ent = (ElfW(Verdef) *) (map->l_addr + def->d_un.d_ptr);
+ while (1)
{
- ElfW(Verdef) *ent;
- ent = (ElfW(Verdef) *) (map->l_addr + def->d_un.d_ptr);
- while (1)
- {
- ElfW(Verdaux) *aux;
- aux = (ElfW(Verdaux) *) ((char *) ent + ent->vd_aux);
-
- if ((ent->vd_flags & VER_FLG_BASE) == 0)
- {
- /* The name of the base version should not be
- available for matching a versioned symbol. */
- ElfW(Half) ndx = ent->vd_ndx & 0x7fff;
- map->l_versions[ndx].hash = ent->vd_hash;
- map->l_versions[ndx].name = &strtab[aux->vda_name];
- map->l_versions[ndx].filename = NULL;
- }
-
- if (ent->vd_next == 0)
- /* No more definitions. */
- break;
+ ElfW(Verdaux) *aux;
+ aux = (ElfW(Verdaux) *) ((char *) ent + ent->vd_aux);
- ent = (ElfW(Verdef) *) ((char *) ent + ent->vd_next);
+ if ((ent->vd_flags & VER_FLG_BASE) == 0)
+ {
+ /* The name of the base version should not be
+ available for matching a versioned symbol. */
+ ElfW(Half) ndx = ent->vd_ndx & 0x7fff;
+ map->l_versions[ndx].hash = ent->vd_hash;
+ map->l_versions[ndx].name = &strtab[aux->vda_name];
+ map->l_versions[ndx].filename = NULL;
}
+
+ if (ent->vd_next == 0)
+ /* No more definitions. */
+ break;
+
+ ent = (ElfW(Verdef) *) ((char *) ent + ent->vd_next);
}
}
}
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