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* emultempl/elf32.em (global_found): Make it a pointer.

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(stat_needed, try_needed): Adjust.
	(check_needed): Don't skip non-loaded as-needed entries.  Only
	consider entries with both filename and the_bfd non-null.
	(after_open): Try loading non-loaded as-needed libs to satisfy
	DT_NEEDED libs.
This commit is contained in:
Alan Modra 2006-06-03 02:45:26 +00:00
parent 040f48d056
commit e13629bc07
2 changed files with 61 additions and 43 deletions
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9
ld/ChangeLog
View file

@ -1,3 +1,12 @@
2006-06-03 Alan Modra <amodra@bigpond.net.au>
* emultempl/elf32.em (global_found): Make it a pointer.
(stat_needed, try_needed): Adjust.
(check_needed): Don't skip non-loaded as-needed entries. Only
consider entries with both filename and the_bfd non-null.
(after_open): Try loading non-loaded as-needed libs to satisfy
DT_NEEDED libs.
2006-06-02 Joseph S. Myers <joseph@codesourcery.com>
* Makefile.am (TEXI2DVI): Add -I $(top_srcdir)/../libiberty.

95
ld/emultempl/elf32.em
View file

@ -148,7 +148,7 @@ cat >>e${EMULATION_NAME}.c <<EOF
static struct bfd_link_needed_list *global_needed;
static struct stat global_stat;
static bfd_boolean global_found;
static lang_input_statement_type *global_found;
static struct bfd_link_needed_list *global_vercheck_needed;
static bfd_boolean global_vercheck_failed;
@ -229,12 +229,14 @@ gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
const char *suffix;
const char *soname;
if (global_found)
if (global_found != NULL)
return;
if (s->the_bfd == NULL)
return;
if (s->as_needed
&& (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
/* If this input file was an as-needed entry, and wasn't found to be
needed at the stage it was linked, then don't say we have loaded it. */
if ((bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
return;
if (bfd_stat (s->the_bfd, &st) != 0)
@ -254,7 +256,7 @@ gld${EMULATION_NAME}_stat_needed (lang_input_statement_type *s)
&& st.st_ino == global_stat.st_ino
&& st.st_ino != 0)
{
global_found = TRUE;
global_found = s;
return;
}
@ -398,9 +400,9 @@ cat >>e${EMULATION_NAME}.c <<EOF
if (trace_file_tries)
info_msg (_("found %s at %s\n"), soname, name);
global_found = FALSE;
global_found = NULL;
lang_for_each_input_file (gld${EMULATION_NAME}_stat_needed);
if (global_found)
if (global_found != NULL)
{
/* Return TRUE to indicate that we found the file, even though
we aren't going to do anything with it. */
@ -569,7 +571,7 @@ gld${EMULATION_NAME}_check_ld_elf_hints (const char *name, int force)
if (fread (b, 1, hdr.dirlistlen + 1, f) ==
hdr.dirlistlen + 1)
ld_elf_hints = gld${EMULATION_NAME}_add_sysroot (b);
free (b);
}
}
@ -585,7 +587,7 @@ gld${EMULATION_NAME}_check_ld_elf_hints (const char *name, int force)
needed.by = NULL;
needed.name = name;
return gld${EMULATION_NAME}_search_needed (ld_elf_hints, & needed,
force);
force);
}
EOF
# FreeBSD
@ -809,49 +811,45 @@ cat >>e${EMULATION_NAME}.c <<EOF
static void
gld${EMULATION_NAME}_check_needed (lang_input_statement_type *s)
{
if (global_found)
const char *soname;
/* Stop looking if we've found a loaded lib. */
if (global_found != NULL
&& (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
& DYN_AS_NEEDED) == 0)
return;
/* If this input file was an as-needed entry, and wasn't found to be
needed at the stage it was linked, then don't say we have loaded it. */
if (s->as_needed
&& (s->the_bfd == NULL
|| (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0))
if (s->filename == NULL || s->the_bfd == NULL)
return;
if (s->filename != NULL)
/* Don't look for a second non-loaded as-needed lib. */
if (global_found != NULL
&& (bfd_elf_get_dyn_lib_class (s->the_bfd) & DYN_AS_NEEDED) != 0)
return;
if (strcmp (s->filename, global_needed->name) == 0)
{
const char *f;
global_found = s;
return;
}
if (strcmp (s->filename, global_needed->name) == 0)
if (s->search_dirs_flag)
{
const char *f = strrchr (s->filename, '/');
if (f != NULL
&& strcmp (f + 1, global_needed->name) == 0)
{
global_found = TRUE;
global_found = s;
return;
}
if (s->search_dirs_flag)
{
f = strrchr (s->filename, '/');
if (f != NULL
&& strcmp (f + 1, global_needed->name) == 0)
{
global_found = TRUE;
return;
}
}
}
if (s->the_bfd != NULL)
soname = bfd_elf_get_dt_soname (s->the_bfd);
if (soname != NULL
&& strcmp (soname, global_needed->name) == 0)
{
const char *soname;
soname = bfd_elf_get_dt_soname (s->the_bfd);
if (soname != NULL
&& strcmp (soname, global_needed->name) == 0)
{
global_found = TRUE;
return;
}
global_found = s;
return;
}
}
@ -904,9 +902,11 @@ gld${EMULATION_NAME}_after_open (void)
/* See if this file was included in the link explicitly. */
global_needed = l;
global_found = FALSE;
global_found = NULL;
lang_for_each_input_file (gld${EMULATION_NAME}_check_needed);
if (global_found)
if (global_found != NULL
&& (bfd_elf_get_dyn_lib_class (global_found->the_bfd)
& DYN_AS_NEEDED) == 0)
continue;
n.by = l->by;
@ -915,6 +915,15 @@ gld${EMULATION_NAME}_after_open (void)
if (trace_file_tries)
info_msg (_("%s needed by %B\n"), l->name, l->by);
/* As-needed libs specified on the command line (or linker script)
take priority over libs found in search dirs. */
if (global_found != NULL)
{
nn.name = global_found->filename;
if (gld${EMULATION_NAME}_try_needed (&nn, TRUE))
continue;
}
/* We need to find this file and include the symbol table. We
want to search for the file in the same way that the dynamic
linker will search. That means that we want to use
@ -1725,7 +1734,7 @@ cat >>e${EMULATION_NAME}.c <<EOF
#define OPTION_GROUP (OPTION_ENABLE_NEW_DTAGS + 1)
#define OPTION_EH_FRAME_HDR (OPTION_GROUP + 1)
#define OPTION_EXCLUDE_LIBS (OPTION_EH_FRAME_HDR + 1)
static void
gld${EMULATION_NAME}_add_options
(int ns, char **shortopts, int nl, struct option **longopts,