/* Linker command language support.
- Copyright (C) 1991, 92, 93, 94 Free Software Foundation, Inc.
+ Copyright (C) 1991, 92, 93, 94, 95, 96, 1997 Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
-along with GLD; see the file COPYING. If not, write to
-the Free Software Foundation, 675 Mass Ave, Cambridge, MA 02139, USA. */
+along with GLD; see the file COPYING. If not, write to the Free
+Software Foundation, 59 Temple Place - Suite 330, Boston, MA
+02111-1307, USA. */
#include "bfd.h"
#include "sysdep.h"
#include "ldmisc.h"
#include "ldctor.h"
#include "ldfile.h"
+#include "fnmatch.h"
+
+#include <ctype.h>
/* FORWARDS */
-static void print_statements PARAMS ((void));
-static void print_statement PARAMS ((lang_statement_union_type *,
- lang_output_section_statement_type *));
static lang_statement_union_type *new_statement PARAMS ((enum statement_enum,
size_t,
lang_statement_list_type*));
static lang_statement_list_type lang_output_section_statement;
static CONST char *current_target;
static CONST char *output_target;
-static int longest_section_name = 8;
static lang_statement_list_type statement_list;
+static struct lang_phdr *lang_phdr_list;
-static void print_size PARAMS ((size_t value));
-static void print_alignment PARAMS ((unsigned int value));
-static void print_fill PARAMS ((fill_type value));
-static void print_section PARAMS ((const char *name));
static void lang_for_each_statement_worker
PARAMS ((void (*func) (lang_statement_union_type *),
lang_statement_union_type *s));
static lang_input_statement_type *new_afile
PARAMS ((const char *name, lang_input_file_enum_type file_type,
const char *target, boolean add_to_list));
-static void print_flags PARAMS ((int *ignore_flags));
static void init_os PARAMS ((lang_output_section_statement_type *s));
-static void wild_doit PARAMS ((lang_statement_list_type *ptr,
- asection *section,
- lang_output_section_statement_type *output,
- lang_input_statement_type *file));
+static void exp_init_os PARAMS ((etree_type *));
+static void section_already_linked PARAMS ((bfd *, asection *, PTR));
+static boolean wildcardp PARAMS ((const char *));
static void wild_section PARAMS ((lang_wild_statement_type *ptr,
const char *section,
lang_input_statement_type *file,
lang_output_section_statement_type *output));
static lang_input_statement_type *lookup_name PARAMS ((const char *name));
-static void load_symbols PARAMS ((lang_input_statement_type *entry));
+static void load_symbols PARAMS ((lang_input_statement_type *entry,
+ lang_statement_list_type *));
+static void wild_file PARAMS ((lang_wild_statement_type *, const char *,
+ lang_input_statement_type *,
+ lang_output_section_statement_type *));
static void wild PARAMS ((lang_wild_statement_type *s,
const char *section, const char *file,
const char *target,
PARAMS ((lang_assignment_statement_type *assignment,
lang_output_section_statement_type *output_section));
static void print_input_statement PARAMS ((lang_input_statement_type *statm));
+static boolean print_one_symbol PARAMS ((struct bfd_link_hash_entry *, PTR));
static void print_input_section PARAMS ((lang_input_section_type *in));
static void print_fill_statement PARAMS ((lang_fill_statement_type *fill));
static void print_data_statement PARAMS ((lang_data_statement_type *data));
+static void print_address_statement PARAMS ((lang_address_statement_type *));
static void print_reloc_statement PARAMS ((lang_reloc_statement_type *reloc));
static void print_padding_statement PARAMS ((lang_padding_statement_type *s));
static void print_wild_statement
PARAMS ((lang_group_statement_type *, lang_output_section_statement_type *));
static void print_statement PARAMS ((lang_statement_union_type *s,
lang_output_section_statement_type *os));
+static void print_statement_list PARAMS ((lang_statement_union_type *s,
+ lang_output_section_statement_type *os));
static void print_statements PARAMS ((void));
static bfd_vma insert_pad PARAMS ((lang_statement_union_type **this_ptr,
fill_type fill, unsigned int power,
static boolean lang_one_common PARAMS ((struct bfd_link_hash_entry *, PTR));
static void lang_place_orphans PARAMS ((void));
static int topower PARAMS ((int));
+static void lang_set_startof PARAMS ((void));
static void reset_memory_regions PARAMS ((void));
+static void lang_record_phdrs PARAMS ((void));
/* EXPORTS */
lang_output_section_statement_type *abs_output_section;
lang_statement_list_type *stat_ptr = &statement_list;
lang_statement_list_type file_chain = { 0 };
-static const char *entry_symbol = 0;
+const char *entry_symbol = NULL;
+boolean entry_from_cmdline;
boolean lang_has_input_file = false;
boolean had_output_filename = false;
boolean lang_float_flag = false;
boolean delete_output_file_on_failure = false;
+struct lang_nocrossrefs *nocrossref_list;
etree_type *base; /* Relocation base - or null */
#define outside_symbol_address(q) ((q)->value + outside_section_address(q->section))
+#define SECTION_NAME_MAP_LENGTH (16)
+
PTR
stat_alloc (size)
size_t size;
return obstack_alloc (&stat_obstack, size);
}
-static void
-print_size (value)
- size_t value;
-{
- fprintf (config.map_file, "%5x", (unsigned) value);
-}
-
-static void
-print_alignment (value)
- unsigned int value;
-{
- fprintf (config.map_file, "2**%1u", value);
-}
-
-static void
-print_fill (value)
- fill_type value;
-{
- fprintf (config.map_file, "%04x", (unsigned) value);
-}
-
-static void
-print_section (name)
- CONST char *name;
-{
- fprintf (config.map_file, "%*s", -longest_section_name, name);
-}
-
/*----------------------------------------------------------------------
lang_for_each_statement walks the parse tree and calls the provided
function for each node
case lang_assignment_statement_enum:
case lang_padding_statement_enum:
case lang_address_statement_enum:
+ case lang_fill_statement_enum:
break;
default:
FAIL ();
lang_has_input_file = true;
p->target = target;
- p->complained = false;
switch (file_type)
{
case lang_input_file_is_symbols_only_enum:
p->next_real_file = (lang_statement_union_type *) NULL;
p->next = (lang_statement_union_type *) NULL;
p->symbol_count = 0;
- p->common_output_section = (asection *) NULL;
+ p->dynamic = config.dynamic_link;
+ p->whole_archive = whole_archive;
p->loaded = false;
lang_statement_append (&input_file_chain,
(lang_statement_union_type *) p,
return p;
}
}
+
+#if 0
+ /* This code used to always use the first region in the list as the
+ default region. I changed it to instead use a region
+ encompassing all of memory as the default region. This permits
+ NOLOAD sections to work reasonably without requiring a region.
+ People should specify what region they mean, if they really want
+ a region. */
if (strcmp (name, "*default*") == 0)
{
- /* This is the default region, dig out first one on the list */
if (lang_memory_region_list != (lang_memory_region_type *) NULL)
{
return lang_memory_region_list;
}
}
+#endif
+
{
lang_memory_region_type *new =
- (lang_memory_region_type *) stat_alloc ((bfd_size_type) (sizeof (lang_memory_region_type)));
+ (lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type));
new->name = buystring (name);
new->next = (lang_memory_region_type *) NULL;
lookup->next = (lang_statement_union_type *) NULL;
lookup->bfd_section = (asection *) NULL;
lookup->processed = false;
- lookup->loadable = 1;
+ lookup->sectype = normal_section;
lookup->addr_tree = (etree_type *) NULL;
lang_list_init (&lookup->children);
lookup->subsection_alignment = -1;
lookup->section_alignment = -1;
lookup->load_base = (union etree_union *) NULL;
+ lookup->phdrs = NULL;
lang_statement_append (&lang_output_section_statement,
(lang_statement_union_type *) lookup,
return lookup;
}
-/*ARGSUSED*/
-static void
-print_flags (ignore_flags)
- int *ignore_flags;
-{
- fprintf (config.map_file, "(");
-#if 0
- if (flags->flag_read)
- fprintf (outfile, "R");
- if (flags->flag_write)
- fprintf (outfile, "W");
- if (flags->flag_executable)
- fprintf (outfile, "X");
- if (flags->flag_loadable)
- fprintf (outfile, "L");
-#endif
- fprintf (config.map_file, ")");
-}
-
void
lang_map ()
{
lang_memory_region_type *m;
- fprintf (config.map_file, "**MEMORY CONFIGURATION**\n\n");
-#ifdef HOST_64_BIT
- fprintf (config.map_file, "name\t\torigin\t\tlength\t\tattributes\n");
-#else
- fprintf (config.map_file,
- "name\t\torigin length r_size c_size is attributes\n");
+ minfo ("\nMemory Configuration\n\n");
+ fprintf (config.map_file, "%-16s %-18s %-18s\n",
+ "Name", "Origin", "Length");
-#endif
for (m = lang_memory_region_list;
m != (lang_memory_region_type *) NULL;
m = m->next)
{
- fprintf (config.map_file, "%-16s", m->name);
- print_address (m->origin);
- print_space ();
- print_address ((bfd_vma)m->length);
- print_space ();
- print_address ((bfd_vma)m->old_length);
- print_space();
- print_address (m->current - m->origin);
- print_space();
- if (m->old_length)
- fprintf (config.map_file, " %2d%% ",
- (int) ((m->current - m->origin) * 100 / m->old_length));
- print_flags (&m->flags);
- fprintf (config.map_file, "\n");
- }
- fprintf (config.map_file, "\n\n**LINK EDITOR MEMORY MAP**\n\n");
- fprintf (config.map_file, "output input virtual\n");
- fprintf (config.map_file, "section section address tsize\n\n");
+ char buf[100];
+ int len;
- print_statements ();
+ fprintf (config.map_file, "%-16s ", m->name);
+
+ sprintf_vma (buf, m->origin);
+ minfo ("0x%s ", buf);
+ len = strlen (buf);
+ while (len < 16)
+ {
+ print_space ();
+ ++len;
+ }
+ minfo ("0x%V\n", m->length);
+ }
+
+ fprintf (config.map_file, "\nLinker script and memory map\n\n");
+
+ print_statements ();
}
-/*
- *
- */
+/* Initialize an output section. */
+
static void
init_os (s)
- lang_output_section_statement_type * s;
+ lang_output_section_statement_type *s;
{
-/* asection *section = bfd_get_section_by_name(output_bfd, s->name);*/
- section_userdata_type *new =
- (section_userdata_type *)
- stat_alloc ((bfd_size_type) (sizeof (section_userdata_type)));
+ section_userdata_type *new;
+
+ if (s->bfd_section != NULL)
+ return;
+
+ if (strcmp (s->name, DISCARD_SECTION_NAME) == 0)
+ einfo ("%P%F: Illegal use of `%s' section", DISCARD_SECTION_NAME);
+
+ new = ((section_userdata_type *)
+ stat_alloc (sizeof (section_userdata_type)));
s->bfd_section = bfd_get_section_by_name (output_bfd, s->name);
if (s->bfd_section == (asection *) NULL)
output_bfd->xvec->name, s->name);
}
s->bfd_section->output_section = s->bfd_section;
-/* s->bfd_section->flags = s->flags;*/
/* We initialize an output sections output offset to minus its own */
/* vma to allow us to output a section through itself */
s->bfd_section->output_offset = 0;
get_userdata (s->bfd_section) = (PTR) new;
+ /* If there is a base address, make sure that any sections it might
+ mention are initialized. */
+ if (s->addr_tree != NULL)
+ exp_init_os (s->addr_tree);
}
-/***********************************************************************
- The wild routines.
+/* Make sure that all output sections mentioned in an expression are
+ initialized. */
+
+static void
+exp_init_os (exp)
+ etree_type *exp;
+{
+ switch (exp->type.node_class)
+ {
+ case etree_assign:
+ exp_init_os (exp->assign.src);
+ break;
+
+ case etree_binary:
+ exp_init_os (exp->binary.lhs);
+ exp_init_os (exp->binary.rhs);
+ break;
+
+ case etree_trinary:
+ exp_init_os (exp->trinary.cond);
+ exp_init_os (exp->trinary.lhs);
+ exp_init_os (exp->trinary.rhs);
+ break;
- These expand statements like *(.text) and foo.o to a list of
- explicit actions, like foo.o(.text), bar.o(.text) and
- foo.o(.text,.data) .
+ case etree_unary:
+ exp_init_os (exp->unary.child);
+ break;
- The toplevel routine, wild, takes a statement, section, file and
- target. If either the section or file is null it is taken to be the
- wildcard. Seperate lang_input_section statements are created for
- each part of the expanstion, and placed after the statement provided.
+ case etree_name:
+ switch (exp->type.node_code)
+ {
+ case ADDR:
+ case LOADADDR:
+ case SIZEOF:
+ {
+ lang_output_section_statement_type *os;
-*/
+ os = lang_output_section_find (exp->name.name);
+ if (os != NULL && os->bfd_section == NULL)
+ init_os (os);
+ }
+ }
+ break;
+
+ default:
+ break;
+ }
+}
+
+/* Sections marked with the SEC_LINK_ONCE flag should only be linked
+ once into the output. This routine checks each sections, and
+ arranges to discard it if a section of the same name has already
+ been linked. This code assumes that all relevant sections have the
+ SEC_LINK_ONCE flag set; that is, it does not depend solely upon the
+ section name. This is called via bfd_map_over_sections. */
+/*ARGSUSED*/
static void
-wild_doit (ptr, section, output, file)
- lang_statement_list_type * ptr;
- asection * section;
- lang_output_section_statement_type * output;
- lang_input_statement_type * file;
+section_already_linked (abfd, sec, data)
+ bfd *abfd;
+ asection *sec;
+ PTR data;
{
- if (output->bfd_section == (asection *) NULL)
- init_os (output);
+ lang_input_statement_type *entry = (lang_input_statement_type *) data;
+ struct sec_link_once
+ {
+ struct sec_link_once *next;
+ asection *sec;
+ };
+ static struct sec_link_once *sec_link_once_list;
+ flagword flags;
+ const char *name;
+ struct sec_link_once *l;
- if (section != (asection *) NULL
- && section->output_section == (asection *) NULL)
- {
- /* Add a section reference to the list */
- lang_input_section_type *new = new_stat (lang_input_section, ptr);
+ /* If we are only reading symbols from this object, then we want to
+ discard all sections. */
+ if (entry->just_syms_flag)
+ {
+ sec->output_section = bfd_abs_section_ptr;
+ sec->output_offset = sec->vma;
+ return;
+ }
+
+ flags = bfd_get_section_flags (abfd, sec);
- new->section = section;
- new->ifile = file;
- section->output_section = output->bfd_section;
+ if ((flags & SEC_LINK_ONCE) == 0)
+ return;
- /* We don't copy the SEC_NEVER_LOAD flag from an input section to
- an output section, because we want to be able to include a
- SEC_NEVER_LOAD section in the middle of an otherwise loaded
- section (I don't know why we want to do this, but we do).
- build_link_order in ldwrite.c handles this case by turning the
- embedded SEC_NEVER_LOAD section into a fill. */
- section->output_section->flags |=
- section->flags & (flagword) (~ SEC_NEVER_LOAD);
+ name = bfd_get_section_name (abfd, sec);
- if (!output->loadable)
+ for (l = sec_link_once_list; l != NULL; l = l->next)
{
- /* Turn off load flag */
- output->bfd_section->flags &= ~SEC_LOAD;
- output->bfd_section->flags |= SEC_NEVER_LOAD;
+ if (strcmp (name, bfd_get_section_name (l->sec->owner, l->sec)) == 0)
+ {
+ /* The section has already been linked. See if we should
+ issue a warning. */
+ switch (flags & SEC_LINK_DUPLICATES)
+ {
+ default:
+ abort ();
+
+ case SEC_LINK_DUPLICATES_DISCARD:
+ break;
+
+ case SEC_LINK_DUPLICATES_ONE_ONLY:
+ einfo ("%P: %B: warning: ignoring duplicate section `%s'\n",
+ abfd, name);
+ break;
+
+ case SEC_LINK_DUPLICATES_SAME_CONTENTS:
+ /* FIXME: We should really dig out the contents of both
+ sections and memcmp them. The COFF/PE spec says that
+ the Microsoft linker does not implement this
+ correctly, so I'm not going to bother doing it
+ either. */
+ /* Fall through. */
+ case SEC_LINK_DUPLICATES_SAME_SIZE:
+ if (bfd_section_size (abfd, sec)
+ != bfd_section_size (l->sec->owner, l->sec))
+ einfo ("%P: %B: warning: duplicate section `%s' has different size\n",
+ abfd, name);
+ break;
+ }
+
+ /* Set the output_section field so that wild_doit does not
+ create a lang_input_section structure for this section. */
+ sec->output_section = bfd_abs_section_ptr;
+
+ return;
+ }
}
- if (section->alignment_power > output->bfd_section->alignment_power)
+
+ /* This is the first section with this name. Record it. */
+
+ l = (struct sec_link_once *) xmalloc (sizeof *l);
+ l->sec = sec;
+ l->next = sec_link_once_list;
+ sec_link_once_list = l;
+}
+\f
+/* The wild routines.
+
+ These expand statements like *(.text) and foo.o to a list of
+ explicit actions, like foo.o(.text), bar.o(.text) and
+ foo.o(.text, .data). */
+
+/* Return true if the PATTERN argument is a wildcard pattern. */
+
+static boolean
+wildcardp (pattern)
+ const char *pattern;
+{
+ const char *s;
+
+ for (s = pattern; *s != '\0'; ++s)
+ if (*s == '?'
+ || *s == '\\'
+ || *s == '*'
+ || *s == '[')
+ return true;
+ return false;
+}
+
+/* Add SECTION to the output section OUTPUT. Do this by creating a
+ lang_input_section statement which is placed at PTR. FILE is the
+ input file which holds SECTION. */
+
+void
+wild_doit (ptr, section, output, file)
+ lang_statement_list_type *ptr;
+ asection *section;
+ lang_output_section_statement_type *output;
+ lang_input_statement_type *file;
+{
+ flagword flags;
+ boolean discard;
+
+ flags = bfd_get_section_flags (section->owner, section);
+
+ discard = false;
+
+ /* If we are doing a final link, discard sections marked with
+ SEC_EXCLUDE. */
+ if (! link_info.relocateable
+ && (flags & SEC_EXCLUDE) != 0)
+ discard = true;
+
+ /* Discard input sections which are assigned to a section named
+ DISCARD_SECTION_NAME. */
+ if (strcmp (output->name, DISCARD_SECTION_NAME) == 0)
+ discard = true;
+
+ /* Discard debugging sections if we are stripping debugging
+ information. */
+ if ((link_info.strip == strip_debugger || link_info.strip == strip_all)
+ && (flags & SEC_DEBUGGING) != 0)
+ discard = true;
+
+ if (discard)
{
- output->bfd_section->alignment_power = section->alignment_power;
+ if (section->output_section == NULL)
+ {
+ /* This prevents future calls from assigning this section. */
+ section->output_section = bfd_abs_section_ptr;
+ }
+ return;
}
- /* If supplied an aligmnet, then force it */
- if (output->section_alignment != -1)
+
+ if (section->output_section == NULL)
{
- output->bfd_section->alignment_power = output->section_alignment;
+ lang_input_section_type *new;
+
+ if (output->bfd_section == NULL)
+ init_os (output);
+
+ /* Add a section reference to the list */
+ new = new_stat (lang_input_section, ptr);
+
+ new->section = section;
+ new->ifile = file;
+ section->output_section = output->bfd_section;
+
+ /* We don't copy the SEC_NEVER_LOAD flag from an input section
+ to an output section, because we want to be able to include a
+ SEC_NEVER_LOAD section in the middle of an otherwise loaded
+ section (I don't know why we want to do this, but we do).
+ build_link_order in ldwrite.c handles this case by turning
+ the embedded SEC_NEVER_LOAD section into a fill.
+
+ If final link, don't copy the SEC_LINK_ONCE flags, they've already
+ been processed. One reason to do this is that on pe format targets,
+ .text$foo sections go into .text and it's odd to see .text with
+ SEC_LINK_ONCE set. */
+
+ section->output_section->flags |=
+ section->flags & (flagword) (~ (SEC_NEVER_LOAD
+ | (! link_info.relocateable
+ ? SEC_LINK_ONCE | SEC_LINK_DUPLICATES
+ : 0)));
+
+ switch (output->sectype)
+ {
+ case normal_section:
+ break;
+ case dsect_section:
+ case copy_section:
+ case info_section:
+ case overlay_section:
+ output->bfd_section->flags &= ~SEC_ALLOC;
+ break;
+ case noload_section:
+ output->bfd_section->flags &= ~SEC_LOAD;
+ output->bfd_section->flags |= SEC_NEVER_LOAD;
+ break;
+ }
+
+ if (section->alignment_power > output->bfd_section->alignment_power)
+ output->bfd_section->alignment_power = section->alignment_power;
+
+ /* If supplied an aligment, then force it. */
+ if (output->section_alignment != -1)
+ output->bfd_section->alignment_power = output->section_alignment;
}
- }
}
+/* Expand a wild statement for a particular FILE. SECTION may be
+ NULL, in which case it is a wild card. */
+
static void
wild_section (ptr, section, file, output)
lang_wild_statement_type *ptr;
if (file->just_syms_flag == false)
{
register asection *s;
+ boolean wildcard;
+
+ if (section == NULL)
+ wildcard = false;
+ else
+ wildcard = wildcardp (section);
for (s = file->the_bfd->sections; s != NULL; s = s->next)
{
+ boolean match;
+
/* Attach all sections named SECTION. If SECTION is NULL,
then attach all sections.
section. I did not understand that, and I took it out.
--ian@cygnus.com. */
- if (section == NULL
- || strcmp (bfd_get_section_name (file->the_bfd, s),
- section) == 0)
+ if (section == NULL)
+ match = true;
+ else
+ {
+ const char *name;
+
+ name = bfd_get_section_name (file->the_bfd, s);
+ if (wildcard)
+ match = fnmatch (section, name, 0) == 0 ? true : false;
+ else
+ match = strcmp (section, name) == 0 ? true : false;
+ }
+ if (match)
wild_doit (&ptr->children, s, output, file);
}
}
}
-/* passed a file name (which must have been seen already and added to
- the statement tree. We will see if it has been opened already and
- had its symbols read. If not then we'll read it.
+/* This is passed a file name which must have been seen already and
+ added to the statement tree. We will see if it has been opened
+ already and had its symbols read. If not then we'll read it. */
- Archives are pecuilar here. We may open them once, but if they do
- not define anything we need at the time, they won't have all their
- symbols read. If we need them later, we'll have to redo it. */
static lang_input_statement_type *
lookup_name (name)
- CONST char *name;
+ const char *name;
{
lang_input_statement_type *search;
|| search->filename == (const char *) NULL)
return search;
- load_symbols (search);
+ load_symbols (search, (lang_statement_list_type *) NULL);
return search;
}
/* Get the symbols for an input file. */
static void
-load_symbols (entry)
+load_symbols (entry, place)
lang_input_statement_type *entry;
+ lang_statement_list_type *place;
{
+ char **matching;
+
if (entry->loaded)
return;
ldfile_open_file (entry);
- if (bfd_check_format (entry->the_bfd, bfd_object))
+ if (! bfd_check_format (entry->the_bfd, bfd_archive)
+ && ! bfd_check_format_matches (entry->the_bfd, bfd_object, &matching))
+ {
+ bfd_error_type err;
+ lang_statement_list_type *hold;
+
+ err = bfd_get_error ();
+ if (err == bfd_error_file_ambiguously_recognized)
+ {
+ char **p;
+
+ einfo ("%B: file not recognized: %E\n", entry->the_bfd);
+ einfo ("%B: matching formats:", entry->the_bfd);
+ for (p = matching; *p != NULL; p++)
+ einfo (" %s", *p);
+ einfo ("%F\n");
+ }
+ else if (err != bfd_error_file_not_recognized
+ || place == NULL)
+ einfo ("%F%B: file not recognized: %E\n", entry->the_bfd);
+
+ bfd_close (entry->the_bfd);
+ entry->the_bfd = NULL;
+
+ /* See if the emulation has some special knowledge. */
+
+ if (ldemul_unrecognized_file (entry))
+ return;
+
+ /* Try to interpret the file as a linker script. */
+
+ ldfile_open_command_file (entry->filename);
+
+ hold = stat_ptr;
+ stat_ptr = place;
+
+ ldfile_assumed_script = true;
+ parser_input = input_script;
+ yyparse ();
+ ldfile_assumed_script = false;
+
+ stat_ptr = hold;
+
+ return;
+ }
+
+ /* We don't call ldlang_add_file for an archive. Instead, the
+ add_symbols entry point will call ldlang_add_file, via the
+ add_archive_element callback, for each element of the archive
+ which is used. */
+ switch (bfd_get_format (entry->the_bfd))
{
+ default:
+ break;
+
+ case bfd_object:
ldlang_add_file (entry);
if (trace_files || trace_file_tries)
info_msg ("%I\n", entry);
+ break;
+
+ case bfd_archive:
+ if (entry->whole_archive)
+ {
+ bfd *member = bfd_openr_next_archived_file (entry->the_bfd,
+ (bfd *) NULL);
+ while (member != NULL)
+ {
+ if (! bfd_check_format (member, bfd_object))
+ einfo ("%F%B: object %B in archive is not object\n",
+ entry->the_bfd, member);
+ if (! ((*link_info.callbacks->add_archive_element)
+ (&link_info, member, "--whole-archive")))
+ abort ();
+ if (! bfd_link_add_symbols (member, &link_info))
+ einfo ("%F%B: could not read symbols: %E\n", member);
+ member = bfd_openr_next_archived_file (entry->the_bfd,
+ member);
+ }
+
+ entry->loaded = true;
+
+ return;
+ }
}
- else if (bfd_check_format (entry->the_bfd, bfd_archive))
- {
- /* There is nothing to do here; the add_symbols routine will
- call ldlang_add_file (via the add_archive_element callback)
- for each element of the archive which is used. */
- }
- else
- einfo ("%F%B: file not recognized: %E\n", entry->the_bfd);
- if (bfd_link_add_symbols (entry->the_bfd, &link_info) == false)
+ if (! bfd_link_add_symbols (entry->the_bfd, &link_info))
einfo ("%F%B: could not read symbols: %E\n", entry->the_bfd);
entry->loaded = true;
}
+/* Handle a wild statement for a single file F. */
+
+static void
+wild_file (s, section, f, output)
+ lang_wild_statement_type *s;
+ const char *section;
+ lang_input_statement_type *f;
+ lang_output_section_statement_type *output;
+{
+ if (f->the_bfd == NULL
+ || ! bfd_check_format (f->the_bfd, bfd_archive))
+ wild_section (s, section, f, output);
+ else
+ {
+ bfd *member;
+
+ /* This is an archive file. We must map each member of the
+ archive separately. */
+ member = bfd_openr_next_archived_file (f->the_bfd, (bfd *) NULL);
+ while (member != NULL)
+ {
+ /* When lookup_name is called, it will call the add_symbols
+ entry point for the archive. For each element of the
+ archive which is included, BFD will call ldlang_add_file,
+ which will set the usrdata field of the member to the
+ lang_input_statement. */
+ if (member->usrdata != NULL)
+ {
+ wild_section (s, section,
+ (lang_input_statement_type *) member->usrdata,
+ output);
+ }
+
+ member = bfd_openr_next_archived_file (f->the_bfd, member);
+ }
+ }
+}
+
+/* Handle a wild statement. SECTION or FILE or both may be NULL,
+ indicating that it is a wildcard. Separate lang_input_section
+ statements are created for each part of the expansion; they are
+ added after the wild statement S. OUTPUT is the output section. */
+
static void
wild (s, section, file, target, output)
- lang_wild_statement_type * s;
- CONST char *section;
- CONST char *file;
- CONST char *target;
- lang_output_section_statement_type * output;
+ lang_wild_statement_type *s;
+ const char *section;
+ const char *file;
+ const char *target;
+ lang_output_section_statement_type *output;
{
lang_input_statement_type *f;
f != (lang_input_statement_type *) NULL;
f = (lang_input_statement_type *) f->next)
{
- wild_section (s, section, f, output);
+ wild_file (s, section, f, output);
+ }
+ }
+ else if (wildcardp (file))
+ {
+ for (f = (lang_input_statement_type *) file_chain.head;
+ f != (lang_input_statement_type *) NULL;
+ f = (lang_input_statement_type *) f->next)
+ {
+ if (fnmatch (file, f->filename, FNM_FILE_NAME) == 0)
+ wild_file (s, section, f, output);
}
}
else
{
/* Perform the iteration over a single file */
- wild_section (s, section, lookup_name (file), output);
+ f = lookup_name (file);
+ wild_file (s, section, f, output);
}
+
if (section != (char *) NULL
&& strcmp (section, "COMMON") == 0
- && default_common_section == (lang_output_section_statement_type *) NULL)
+ && default_common_section == NULL)
{
- /* Remember the section that common is going to incase we later
- get something which doesn't know where to put it */
+ /* Remember the section that common is going to in case we later
+ get something which doesn't know where to put it. */
default_common_section = output;
}
}
-/*
- read in all the files
- */
+/* Open the output file. */
static bfd *
open_output (name)
- CONST char *name;
+ const char *name;
{
bfd *output;
einfo ("%P%F: cannot open output file %s: %E\n", name);
}
- delete_output_file_on_failure = 1;
+ delete_output_file_on_failure = true;
/* output->flags |= D_PAGED;*/
output_bfd->flags |= WP_TEXT;
else
output_bfd->flags &= ~WP_TEXT;
- if (config.traditional_format)
+ if (link_info.traditional_format)
output_bfd->flags |= BFD_TRADITIONAL_FORMAT;
else
output_bfd->flags &= ~BFD_TRADITIONAL_FORMAT;
break;
case lang_wild_statement_enum:
/* Maybe we should load the file's symbols */
- if (s->wild_statement.filename)
+ if (s->wild_statement.filename
+ && ! wildcardp (s->wild_statement.filename))
(void) lookup_name (s->wild_statement.filename);
open_input_bfds (s->wild_statement.children.head, force);
break;
case lang_input_statement_enum:
if (s->input_statement.real == true)
{
+ lang_statement_list_type add;
+
s->input_statement.target = current_target;
/* If we are being called from within a group, and this
bfd_archive))
s->input_statement.loaded = false;
- load_symbols (&s->input_statement);
+ lang_list_init (&add);
+
+ load_symbols (&s->input_statement, &add);
+
+ if (add.head != NULL)
+ {
+ *add.tail = s->next;
+ s->next = add.head;
+ }
}
break;
default:
CONST char *CONST name;
{
ldlang_undef_chain_list_type *new =
- (ldlang_undef_chain_list_type
- *) stat_alloc ((bfd_size_type) (sizeof (ldlang_undef_chain_list_type)));
+ ((ldlang_undef_chain_list_type *)
+ stat_alloc (sizeof (ldlang_undef_chain_list_type)));
new->next = ldlang_undef_chain_list_head;
ldlang_undef_chain_list_head = new;
case lang_object_symbols_statement_enum:
case lang_data_statement_enum:
case lang_reloc_statement_enum:
- case lang_assignment_statement_enum:
case lang_padding_statement_enum:
case lang_input_statement_enum:
if (output_section_statement != NULL
&& output_section_statement->bfd_section == NULL)
init_os (output_section_statement);
break;
+ case lang_assignment_statement_enum:
+ if (output_section_statement != NULL
+ && output_section_statement->bfd_section == NULL)
+ init_os (output_section_statement);
+
+ /* Make sure that any sections mentioned in the assignment
+ are initialized. */
+ exp_init_os (s->assignment_statement.exp);
+ break;
case lang_afile_asection_pair_statement_enum:
FAIL ();
break;
lang_output_section_statement_type * output_section_statement;
{
asection *section = output_section_statement->bfd_section;
+ int len;
- print_nl ();
- print_section (output_section_statement->name);
+ if (output_section_statement != abs_output_section)
+ {
+ minfo ("\n%s", output_section_statement->name);
+ if (section != NULL)
+ {
+ print_dot = section->vma;
- if (section)
- {
- print_dot = section->vma;
- print_space ();
- print_section ("");
- print_space ();
- print_address (section->vma);
- print_space ();
- print_size (section->_raw_size);
- print_space();
- print_size(section->_cooked_size);
- print_space ();
- print_alignment (section->alignment_power);
- print_space ();
-#if 0
- fprintf (config.map_file, "%s flags", output_section_statement->region->name);
- print_flags (stdout, &output_section_statement->flags);
-#endif
- if (section->flags & SEC_LOAD)
- fprintf (config.map_file, "load ");
- if (section->flags & SEC_ALLOC)
- fprintf (config.map_file, "alloc ");
- if (section->flags & SEC_RELOC)
- fprintf (config.map_file, "reloc ");
- if (section->flags & SEC_HAS_CONTENTS)
- fprintf (config.map_file, "contents ");
+ len = strlen (output_section_statement->name);
+ if (len >= SECTION_NAME_MAP_LENGTH - 1)
+ {
+ print_nl ();
+ len = 0;
+ }
+ while (len < SECTION_NAME_MAP_LENGTH)
+ {
+ print_space ();
+ ++len;
+ }
- }
- else
- {
- fprintf (config.map_file, " (no attached output section)");
- }
- print_nl ();
- if (output_section_statement->load_base)
- {
- int b = exp_get_value_int(output_section_statement->load_base,
- 0, "output base", lang_final_phase_enum);
- printf("Output address %08x\n", b);
- }
- if (output_section_statement->section_alignment >= 0
- || output_section_statement->section_alignment >= 0)
- {
- printf("\t\t\t\t\tforced alignment ");
- if ( output_section_statement->section_alignment >= 0)
- {
- printf("section 2**%d ",output_section_statement->section_alignment );
- }
- if ( output_section_statement->subsection_alignment >= 0)
- {
- printf("subsection 2**%d ",output_section_statement->subsection_alignment );
- }
-
- print_nl ();
- }
- print_statement (output_section_statement->children.head,
- output_section_statement);
+ minfo ("0x%V %W", section->vma, section->_raw_size);
-}
+ if (output_section_statement->load_base != NULL)
+ {
+ bfd_vma addr;
-static void
-print_assignment (assignment, output_section)
+ addr = exp_get_abs_int (output_section_statement->load_base, 0,
+ "load base", lang_final_phase_enum);
+ minfo (" load address 0x%V", addr);
+ }
+ }
+
+ print_nl ();
+ }
+
+ print_statement_list (output_section_statement->children.head,
+ output_section_statement);
+}
+
+static void
+print_assignment (assignment, output_section)
lang_assignment_statement_type * assignment;
lang_output_section_statement_type * output_section;
{
+ int i;
etree_value_type result;
- print_section ("");
- print_space ();
- print_section ("");
- print_space ();
- print_address (print_dot);
- print_space ();
- result = exp_fold_tree (assignment->exp->assign.src,
- output_section,
- lang_final_phase_enum,
- print_dot,
- &print_dot);
+ for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
+ print_space ();
+ result = exp_fold_tree (assignment->exp->assign.src, output_section,
+ lang_final_phase_enum, print_dot, &print_dot);
if (result.valid)
- {
- print_address (result.value);
- }
+ minfo ("0x%V", result.value + result.section->bfd_section->vma);
else
{
- fprintf (config.map_file, "*undefined*");
+ minfo ("*undef* ");
+#ifdef BFD64
+ minfo (" ");
+#endif
}
- print_space ();
+
+ minfo (" ");
+
exp_print_tree (assignment->exp);
- fprintf (config.map_file, "\n");
+ print_nl ();
}
static void
}
}
-/* Print all the defined symbols for the abfd provided by in the supplied
- section.
-*/
+/* Print all symbols defined in a particular section. This is called
+ via bfd_link_hash_traverse. */
static boolean
print_one_symbol (hash_entry, ptr)
-struct bfd_link_hash_entry *hash_entry;
-PTR ptr;
+ struct bfd_link_hash_entry *hash_entry;
+ PTR ptr;
{
- asection * sec = (asection *)ptr;
+ asection *sec = (asection *) ptr;
- if (hash_entry->type == bfd_link_hash_defined)
+ if ((hash_entry->type == bfd_link_hash_defined
+ || hash_entry->type == bfd_link_hash_defweak)
+ && sec == hash_entry->u.def.section)
{
- if (sec == hash_entry->u.def.section) {
- print_section ("");
- fprintf (config.map_file, " ");
- print_section ("");
- fprintf (config.map_file, " ");
- print_address (hash_entry->u.def.value + outside_section_address (sec));
- fprintf (config.map_file, " %s", hash_entry->root.string);
- print_nl ();
- }
+ int i;
+
+ for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
+ print_space ();
+ minfo ("0x%V ",
+ (hash_entry->u.def.value
+ + hash_entry->u.def.section->output_offset
+ + hash_entry->u.def.section->output_section->vma));
+
+ minfo (" %T\n", hash_entry->root.string);
}
return true;
}
+/* Print information about an input section to the map file. */
+
static void
print_input_section (in)
lang_input_section_type * in;
if (size != 0)
{
- print_section ("");
- fprintf (config.map_file, " ");
- print_section (i->name);
- fprintf (config.map_file, " ");
- if (i->output_section)
+ print_space ();
+
+ minfo ("%s", i->name);
+
+ if (i->output_section != NULL)
{
- print_address (i->output_section->vma + i->output_offset);
- fprintf (config.map_file, " ");
- print_size (i->_raw_size);
- fprintf (config.map_file, " ");
- print_size(i->_cooked_size);
- fprintf (config.map_file, " ");
- print_alignment (i->alignment_power);
- fprintf (config.map_file, " ");
- if (in->ifile)
- {
+ int len;
- bfd *abfd = in->ifile->the_bfd;
+ len = 1 + strlen (i->name);
+ if (len >= SECTION_NAME_MAP_LENGTH - 1)
+ {
+ print_nl ();
+ len = 0;
+ }
+ while (len < SECTION_NAME_MAP_LENGTH)
+ {
+ print_space ();
+ ++len;
+ }
- if (in->ifile->just_syms_flag == true)
- {
- fprintf (config.map_file, "symbols only ");
- }
+ minfo ("0x%V %W %B\n",
+ i->output_section->vma + i->output_offset, size,
+ i->owner);
- fprintf (config.map_file, " %s ", abfd->xvec->name);
- if (abfd->my_archive != (bfd *) NULL)
- {
- fprintf (config.map_file, "[%s]%s", abfd->my_archive->filename,
- abfd->filename);
- }
- else
+ if (i->_cooked_size != 0 && i->_cooked_size != i->_raw_size)
+ {
+ len = SECTION_NAME_MAP_LENGTH + 3;
+#ifdef BFD64
+ len += 16;
+#else
+ len += 8;
+#endif
+ while (len > 0)
{
- fprintf (config.map_file, "%s", abfd->filename);
+ print_space ();
+ --len;
}
- fprintf (config.map_file, "(overhead %d bytes)", (int) bfd_alloc_size (abfd));
- print_nl ();
- /* Print all the symbols */
- bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i);
- }
- else
- {
- print_nl ();
+ minfo ("%W (size before relaxing)\n", i->_raw_size);
}
+ bfd_link_hash_traverse (link_info.hash, print_one_symbol, (PTR) i);
- print_dot = outside_section_address (i) + size;
- }
- else
- {
- fprintf (config.map_file, "No output section allocated\n");
+ print_dot = i->output_section->vma + i->output_offset + size;
}
}
}
print_fill_statement (fill)
lang_fill_statement_type * fill;
{
- fprintf (config.map_file, "FILL mask ");
- print_fill (fill->fill);
+ fprintf (config.map_file, " FILL mask 0x%x\n", fill->fill);
}
static void
print_data_statement (data)
lang_data_statement_type * data;
{
-/* bfd_vma value; */
- print_section ("");
- print_space ();
- print_section ("");
- print_space ();
-/* ASSERT(print_dot == data->output_vma);*/
+ int i;
+ bfd_vma addr;
+ bfd_size_type size;
+ const char *name;
+
+ for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
+ print_space ();
+
+ addr = data->output_vma;
+ if (data->output_section != NULL)
+ addr += data->output_section->vma;
- print_address (data->output_vma + data->output_section->vma);
- print_space ();
- print_address (data->value);
- print_space ();
switch (data->type)
{
+ default:
+ abort ();
case BYTE:
- fprintf (config.map_file, "BYTE ");
- print_dot += BYTE_SIZE;
+ size = BYTE_SIZE;
+ name = "BYTE";
break;
case SHORT:
- fprintf (config.map_file, "SHORT ");
- print_dot += SHORT_SIZE;
+ size = SHORT_SIZE;
+ name = "SHORT";
break;
case LONG:
- fprintf (config.map_file, "LONG ");
- print_dot += LONG_SIZE;
+ size = LONG_SIZE;
+ name = "LONG";
break;
case QUAD:
- fprintf (config.map_file, "QUAD ");
- print_dot += QUAD_SIZE;
+ size = QUAD_SIZE;
+ name = "QUAD";
break;
}
- exp_print_tree (data->exp);
+ minfo ("0x%V %W %s 0x%v", addr, size, name, data->value);
- fprintf (config.map_file, "\n");
+ if (data->exp->type.node_class != etree_value)
+ {
+ print_space ();
+ exp_print_tree (data->exp);
+ }
+
+ print_nl ();
+
+ print_dot = addr + size;
+}
+
+/* Print an address statement. These are generated by options like
+ -Ttext. */
+
+static void
+print_address_statement (address)
+ lang_address_statement_type *address;
+{
+ minfo ("Address of section %s set to ", address->section_name);
+ exp_print_tree (address->address);
+ print_nl ();
}
/* Print a reloc statement. */
print_reloc_statement (reloc)
lang_reloc_statement_type *reloc;
{
- print_section ("");
- print_space ();
- print_section ("");
- print_space ();
+ int i;
+ bfd_vma addr;
+ bfd_size_type size;
-/* ASSERT(print_dot == data->output_vma);*/
+ for (i = 0; i < SECTION_NAME_MAP_LENGTH; i++)
+ print_space ();
- print_address (reloc->output_vma + reloc->output_section->vma);
- print_space ();
- print_address (reloc->addend_value);
- print_space ();
+ addr = reloc->output_vma;
+ if (reloc->output_section != NULL)
+ addr += reloc->output_section->vma;
- fprintf (config.map_file, "RELOC %s ", reloc->howto->name);
+ size = bfd_get_reloc_size (reloc->howto);
- print_dot += bfd_get_reloc_size (reloc->howto);
+ minfo ("0x%V %W RELOC %s ", addr, size, reloc->howto->name);
+
+ if (reloc->name != NULL)
+ minfo ("%s+", reloc->name);
+ else
+ minfo ("%s+", reloc->section->name);
exp_print_tree (reloc->addend_exp);
- fprintf (config.map_file, "\n");
+ print_nl ();
+
+ print_dot = addr + size;
}
static void
print_padding_statement (s)
- lang_padding_statement_type * s;
+ lang_padding_statement_type *s;
{
- print_section ("");
- print_space ();
- print_section ("*fill*");
- print_space ();
- print_address (s->output_offset + s->output_section->vma);
- print_space ();
- print_size (s->size);
- print_space ();
- print_fill (s->fill);
- print_nl ();
+ int len;
+ bfd_vma addr;
+
+ minfo (" *fill*");
+
+ len = sizeof " *fill*" - 1;
+ while (len < SECTION_NAME_MAP_LENGTH)
+ {
+ print_space ();
+ ++len;
+ }
+
+ addr = s->output_offset;
+ if (s->output_section != NULL)
+ addr += s->output_section->vma;
+ minfo ("0x%V %W", addr, s->size);
- print_dot = s->output_offset + s->output_section->vma + s->size;
+ if (s->fill != 0)
+ minfo (" %u", s->fill);
+ print_nl ();
+
+ print_dot = addr + s->size;
}
static void
lang_wild_statement_type * w;
lang_output_section_statement_type * os;
{
- fprintf (config.map_file, " from ");
- if (w->filename != (char *) NULL)
- {
- fprintf (config.map_file, "%s", w->filename);
- }
+ print_space ();
+
+ if (w->filename != NULL)
+ minfo ("%s", w->filename);
else
- {
- fprintf (config.map_file, "*");
- }
- if (w->section_name != (char *) NULL)
- {
- fprintf (config.map_file, "(%s)", w->section_name);
- }
+ minfo ("*");
+
+ if (w->section_name != NULL)
+ minfo ("(%s)", w->section_name);
else
- {
- fprintf (config.map_file, "(*)");
- }
+ minfo ("(*)");
+
print_nl ();
- print_statement (w->children.head, os);
+ print_statement_list (w->children.head, os);
}
/* Print a group statement. */
lang_output_section_statement_type *os;
{
fprintf (config.map_file, "START GROUP\n");
- print_statement (s->children.head, os);
+ print_statement_list (s->children.head, os);
fprintf (config.map_file, "END GROUP\n");
}
+/* Print the list of statements in S.
+ This can be called for any statement type. */
+
+static void
+print_statement_list (s, os)
+ lang_statement_union_type *s;
+ lang_output_section_statement_type *os;
+{
+ while (s != NULL)
+ {
+ print_statement (s, os);
+ s = s->next;
+ }
+}
+
+/* Print the first statement in statement list S.
+ This can be called for any statement type. */
+
static void
print_statement (s, os)
- lang_statement_union_type * s;
- lang_output_section_statement_type * os;
+ lang_statement_union_type *s;
+ lang_output_section_statement_type *os;
{
- while (s)
+ switch (s->header.type)
{
- switch (s->header.type)
+ default:
+ fprintf (config.map_file, "Fail with %d\n", s->header.type);
+ FAIL ();
+ break;
+ case lang_constructors_statement_enum:
+ if (constructor_list.head != NULL)
{
- case lang_constructors_statement_enum:
- fprintf (config.map_file, "constructors:\n");
- print_statement (constructor_list.head, os);
- break;
- case lang_wild_statement_enum:
- print_wild_statement (&s->wild_statement, os);
- break;
- default:
- fprintf (config.map_file, "Fail with %d\n", s->header.type);
- FAIL ();
- break;
- case lang_address_statement_enum:
- fprintf (config.map_file, "address\n");
- break;
- case lang_object_symbols_statement_enum:
- fprintf (config.map_file, "object symbols\n");
- break;
- case lang_fill_statement_enum:
- print_fill_statement (&s->fill_statement);
- break;
- case lang_data_statement_enum:
- print_data_statement (&s->data_statement);
- break;
- case lang_reloc_statement_enum:
- print_reloc_statement (&s->reloc_statement);
- break;
- case lang_input_section_enum:
- print_input_section (&s->input_section);
- break;
- case lang_padding_statement_enum:
- print_padding_statement (&s->padding_statement);
- break;
- case lang_output_section_statement_enum:
- print_output_section_statement (&s->output_section_statement);
- break;
- case lang_assignment_statement_enum:
- print_assignment (&s->assignment_statement,
- os);
- break;
- case lang_target_statement_enum:
- fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target);
- break;
- case lang_output_statement_enum:
- fprintf (config.map_file, "OUTPUT(%s %s)\n",
- s->output_statement.name,
- output_target ? output_target : "");
- break;
- case lang_input_statement_enum:
- print_input_statement (&s->input_statement);
- break;
- case lang_group_statement_enum:
- print_group (&s->group_statement, os);
- break;
- case lang_afile_asection_pair_statement_enum:
- FAIL ();
- break;
+ minfo (" CONSTRUCTORS\n");
+ print_statement_list (constructor_list.head, os);
}
- s = s->next;
+ break;
+ case lang_wild_statement_enum:
+ print_wild_statement (&s->wild_statement, os);
+ break;
+ case lang_address_statement_enum:
+ print_address_statement (&s->address_statement);
+ break;
+ case lang_object_symbols_statement_enum:
+ minfo (" CREATE_OBJECT_SYMBOLS\n");
+ break;
+ case lang_fill_statement_enum:
+ print_fill_statement (&s->fill_statement);
+ break;
+ case lang_data_statement_enum:
+ print_data_statement (&s->data_statement);
+ break;
+ case lang_reloc_statement_enum:
+ print_reloc_statement (&s->reloc_statement);
+ break;
+ case lang_input_section_enum:
+ print_input_section (&s->input_section);
+ break;
+ case lang_padding_statement_enum:
+ print_padding_statement (&s->padding_statement);
+ break;
+ case lang_output_section_statement_enum:
+ print_output_section_statement (&s->output_section_statement);
+ break;
+ case lang_assignment_statement_enum:
+ print_assignment (&s->assignment_statement, os);
+ break;
+ case lang_target_statement_enum:
+ fprintf (config.map_file, "TARGET(%s)\n", s->target_statement.target);
+ break;
+ case lang_output_statement_enum:
+ minfo ("OUTPUT(%s", s->output_statement.name);
+ if (output_target != NULL)
+ minfo (" %s", output_target);
+ minfo (")\n");
+ break;
+ case lang_input_statement_enum:
+ print_input_statement (&s->input_statement);
+ break;
+ case lang_group_statement_enum:
+ print_group (&s->group_statement, os);
+ break;
+ case lang_afile_asection_pair_statement_enum:
+ FAIL ();
+ break;
}
}
-
static void
print_statements ()
{
- print_statement (statement_list.head,
- abs_output_section);
+ print_statement_list (statement_list.head, abs_output_section);
+}
+
+/* Print the first N statements in statement list S to STDERR.
+ If N == 0, nothing is printed.
+ If N < 0, the entire list is printed.
+ Intended to be called from GDB. */
+
+void
+dprint_statement (s, n)
+ lang_statement_union_type * s;
+ int n;
+{
+ FILE *map_save = config.map_file;
+
+ config.map_file = stderr;
+ if (n < 0)
+ print_statement_list (s, abs_output_section);
+ else
+ {
+ while (s && --n >= 0)
+ {
+ print_statement (s, abs_output_section);
+ s = s->next;
+ }
+ }
+
+ config.map_file = map_save;
}
static bfd_vma
if (alignment_needed != 0)
{
lang_statement_union_type *new =
- (lang_statement_union_type *)
- stat_alloc ((bfd_size_type) (sizeof (lang_padding_statement_type)));
+ ((lang_statement_union_type *)
+ stat_alloc (sizeof (lang_padding_statement_type)));
/* Link into existing chain */
new->header.next = *this_ptr;
}
dot = os->region->current;
if (os->section_alignment == -1)
- dot = align_power (dot, os->bfd_section->alignment_power);
+ {
+ bfd_vma olddot;
+
+ olddot = dot;
+ dot = align_power (dot, os->bfd_section->alignment_power);
+ if (dot != olddot && config.warn_section_align)
+ einfo ("%P: warning: changing start of section %s by %u bytes\n",
+ os->name, (unsigned int) (dot - olddot));
+ }
}
else
{
einfo ("%F%S: non constant address expression for section %s\n",
os->name);
}
- dot = r.value;
+ dot = r.value + r.section->bfd_section->vma;
}
/* The section starts here */
/* First, align to what the section needs */
bfd_set_section_vma (0, os->bfd_section, dot);
- if (os->load_base) {
- os->bfd_section->lma
- = exp_get_value_int(os->load_base, 0,"load base", lang_final_phase_enum);
- }
-
os->bfd_section->output_offset = 0;
}
/* Replace into region ? */
if (os->region != (lang_memory_region_type *) NULL)
- {
- os->region->current = dot;
- /* Make sure this isn't silly */
- if (( os->region->current
- > os->region->origin + os->region->length)
- || ( os->region->origin > os->region->current ))
- {
- einfo ("%X%P: region %s is full (%B section %s)\n",
- os->region->name,
- os->bfd_section->owner,
- os->bfd_section->name);
- /* Reset the region pointer */
- os->region->current = 0;
-
- }
-
- }
+ {
+ os->region->current = dot;
+ /* Make sure this isn't silly. */
+ if (os->region->current < os->region->origin
+ || (os->region->current - os->region->origin
+ > os->region->length))
+ {
+ if (os->addr_tree != (etree_type *) NULL)
+ {
+ einfo ("%X%P: address 0x%v of %B section %s is not within region %s\n",
+ os->region->current,
+ os->bfd_section->owner,
+ os->bfd_section->name,
+ os->region->name);
+ }
+ else
+ {
+ einfo ("%X%P: region %s is full (%B section %s)\n",
+ os->region->name,
+ os->bfd_section->owner,
+ os->bfd_section->name);
+ }
+ /* Reset the region pointer. */
+ os->region->current = os->region->origin;
+ }
+ }
}
+ break;
- break;
case lang_constructors_statement_enum:
dot = lang_size_sections (constructor_list.head,
output_section_statement,
}
dot += size;
output_section_statement->bfd_section->_raw_size += size;
+ /* The output section gets contents, and then we inspect for
+ any flags set in the input script which override any ALLOC */
+ output_section_statement->bfd_section->flags |= SEC_HAS_CONTENTS;
+ if (!(output_section_statement->flags & SEC_NEVER_LOAD)) {
+ output_section_statement->bfd_section->flags |= SEC_ALLOC | SEC_LOAD;
+ }
}
break;
i = (*prev)->input_section.section;
if (! relax)
- i->_cooked_size = i->_raw_size;
+ {
+ if (i->_cooked_size == 0)
+ i->_cooked_size = i->_raw_size;
+ }
else
{
boolean again;
s->padding_statement.output_offset =
dot - output_section_statement->bfd_section->vma;
dot += s->padding_statement.size;
+ output_section_statement->bfd_section->_raw_size +=
+ s->padding_statement.size;
break;
case lang_group_statement_enum:
os->fill, dot);
dot = os->bfd_section->vma + os->bfd_section->_raw_size;
}
+ if (os->load_base)
+ {
+ /* If nothing has been placed into the output section then
+ it won't have a bfd_section. */
+ if (os->bfd_section)
+ {
+ os->bfd_section->lma
+ = exp_get_abs_int(os->load_base, 0,"load base", lang_final_phase_enum);
+ }
+ }
}
break;
case lang_wild_statement_enum:
return dot;
}
+/* Fix any .startof. or .sizeof. symbols. When the assemblers see the
+ operator .startof. (section_name), it produces an undefined symbol
+ .startof.section_name. Similarly, when it sees
+ .sizeof. (section_name), it produces an undefined symbol
+ .sizeof.section_name. For all the output sections, we look for
+ such symbols, and set them to the correct value. */
+
+static void
+lang_set_startof ()
+{
+ asection *s;
+
+ if (link_info.relocateable)
+ return;
+
+ for (s = output_bfd->sections; s != NULL; s = s->next)
+ {
+ const char *secname;
+ char *buf;
+ struct bfd_link_hash_entry *h;
+
+ secname = bfd_get_section_name (output_bfd, s);
+ buf = xmalloc (10 + strlen (secname));
+
+ sprintf (buf, ".startof.%s", secname);
+ h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true);
+ if (h != NULL && h->type == bfd_link_hash_undefined)
+ {
+ h->type = bfd_link_hash_defined;
+ h->u.def.value = bfd_get_section_vma (output_bfd, s);
+ h->u.def.section = bfd_abs_section_ptr;
+ }
+
+ sprintf (buf, ".sizeof.%s", secname);
+ h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true);
+ if (h != NULL && h->type == bfd_link_hash_undefined)
+ {
+ h->type = bfd_link_hash_defined;
+ if (s->_cooked_size != 0)
+ h->u.def.value = s->_cooked_size;
+ else
+ h->u.def.value = s->_raw_size;
+ h->u.def.section = bfd_abs_section_ptr;
+ }
+
+ free (buf);
+ }
+}
+
static void
lang_finish ()
{
struct bfd_link_hash_entry *h;
- boolean warn = link_info.relocateable ? false : true;
+ boolean warn;
+
+ if (link_info.relocateable || link_info.shared)
+ warn = false;
+ else
+ warn = true;
if (entry_symbol == (char *) NULL)
{
h = bfd_link_hash_lookup (link_info.hash, entry_symbol, false, false, true);
if (h != (struct bfd_link_hash_entry *) NULL
- && h->type == bfd_link_hash_defined)
+ && (h->type == bfd_link_hash_defined
+ || h->type == bfd_link_hash_defweak)
+ && h->u.def.section->output_section != NULL)
{
bfd_vma val;
}
}
-/* By now we know the target architecture, and we may have an */
-/* ldfile_output_machine_name */
+/* Check that the architecture of all the input files is compatible
+ with the output file. Also call the backend to let it do any
+ other checking that is needed. */
+
static void
lang_check ()
{
lang_statement_union_type *file;
bfd *input_bfd;
- unsigned long input_machine;
- enum bfd_architecture input_architecture;
CONST bfd_arch_info_type *compatible;
for (file = file_chain.head;
file = file->input_statement.next)
{
input_bfd = file->input_statement.the_bfd;
-
- input_machine = bfd_get_mach (input_bfd);
- input_architecture = bfd_get_arch (input_bfd);
-
-
- /* Inspect the architecture and ensure we're linking like with
- like */
-
compatible = bfd_arch_get_compatible (input_bfd,
output_bfd);
-
- if (compatible)
- {
- ldfile_output_machine = compatible->mach;
- ldfile_output_architecture = compatible->arch;
- }
- else
- {
-
- einfo ("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n",
- bfd_printable_name (input_bfd), input_bfd,
- bfd_printable_name (output_bfd));
-
- if (! bfd_set_arch_mach (output_bfd,
- input_architecture,
- input_machine))
- einfo ("%P%F:%s: can't set architecture: %E\n",
- bfd_get_filename (output_bfd));
- }
+ if (compatible == NULL)
+ einfo ("%P: warning: %s architecture of input file `%B' is incompatible with %s output\n",
+ bfd_printable_name (input_bfd), input_bfd,
+ bfd_printable_name (output_bfd));
+ else
+ bfd_merge_private_bfd_data (input_bfd, output_bfd);
}
}
bfd_link_hash_traverse (link_info.hash, lang_one_common, (PTR) NULL);
else
{
- unsigned int power;
+ int power;
- for (power = 1; power <= 16; power <<= 1)
+ for (power = 4; power >= 0; power--)
bfd_link_hash_traverse (link_info.hash, lang_one_common,
(PTR) &power);
}
{
unsigned int power_of_two;
bfd_vma size;
- size_t align;
asection *section;
if (h->type != bfd_link_hash_common)
return true;
size = h->u.c.size;
- switch (size)
- {
- case 0:
- case 1:
- power_of_two = 0;
- align = 1;
- break;
- case 2:
- power_of_two = 1;
- align = 2;
- break;
- case 3:
- case 4:
- power_of_two = 2;
- align = 4;
- break;
- case 5:
- case 6:
- case 7:
- case 8:
- power_of_two = 3;
- align = 8;
- break;
- default:
- power_of_two = 4;
- align = 16;
- break;
- }
-
- if (config.sort_common && align != *(unsigned int *) info)
+ power_of_two = h->u.c.p->alignment_power;
+
+ if (config.sort_common
+ && power_of_two < (unsigned int) *(int *) info)
return true;
- section = h->u.c.section;
+ section = h->u.c.p->section;
/* Increase the size of the section. */
- section->_raw_size = ALIGN_N (section->_raw_size, align);
+ section->_raw_size = ALIGN_N (section->_raw_size,
+ (bfd_size_type) (1 << power_of_two));
/* Adjust the alignment if necessary. */
if (power_of_two > section->alignment_power)
/* Increase the size of the section. */
section->_raw_size += size;
+ /* Make sure the section is allocated in memory, and make sure that
+ it is no longer a common section. */
+ section->flags |= SEC_ALLOC;
+ section->flags &= ~ SEC_IS_COMMON;
+
if (config.map_file != NULL)
- fprintf (config.map_file, "Allocating common %s: %lx at %lx %s\n",
- h->root.string, (unsigned long) size,
- (unsigned long) h->u.def.value, section->owner->filename);
+ {
+ static boolean header_printed;
+ int len;
+ char *name;
+ char buf[50];
+
+ if (! header_printed)
+ {
+ minfo ("\nAllocating common symbols\n");
+ minfo ("Common symbol size file\n\n");
+ header_printed = true;
+ }
+
+ name = demangle (h->root.string);
+ minfo ("%s", name);
+ len = strlen (name);
+ free (name);
+
+ if (len >= 19)
+ {
+ print_nl ();
+ len = 0;
+ }
+ while (len < 20)
+ {
+ print_space ();
+ ++len;
+ }
+
+ minfo ("0x");
+ if (size <= 0xffffffff)
+ sprintf (buf, "%lx", (unsigned long) size);
+ else
+ sprintf_vma (buf, size);
+ minfo ("%s", buf);
+ len = strlen (buf);
+
+ while (len < 16)
+ {
+ print_space ();
+ ++len;
+ }
+
+ minfo ("%B\n", section->owner);
+ }
return true;
}
{
asection *s;
- if (file->just_syms_flag)
- continue;
-
for (s = file->the_bfd->sections;
s != (asection *) NULL;
s = s->next)
/* This section of the file is not attatched, root
around for a sensible place for it to go */
- if (file->common_section == s)
+ if (file->just_syms_flag)
{
- /* This is a lonely common section which must
- have come from an archive. We attatch to the
- section with the wildcard */
+ /* We are only retrieving symbol values from this
+ file. We want the symbols to act as though the
+ values in the file are absolute. */
+ s->output_section = bfd_abs_section_ptr;
+ s->output_offset = s->vma;
+ }
+ else if (strcmp (s->name, "COMMON") == 0)
+ {
+ /* This is a lonely common section which must have
+ come from an archive. We attach to the section
+ with the wildcard. */
if (! link_info.relocateable
- && ! command_line.force_common_definition)
+ || command_line.force_common_definition)
{
- if (default_common_section ==
- (lang_output_section_statement_type *) NULL)
+ if (default_common_section == NULL)
{
+#if 0
+ /* This message happens when using the
+ svr3.ifile linker script, so I have
+ disabled it. */
info_msg ("%P: no [COMMON] command, defaulting to .bss\n");
-
+#endif
default_common_section =
lang_output_section_statement_lookup (".bss");
default_common_section, file);
}
}
+ else if (ldemul_place_orphan (file, s))
+ ;
else
{
lang_output_section_statement_type *os =
*pp = entry->the_bfd;
entry->the_bfd->usrdata = (PTR) entry;
bfd_set_gp_size (entry->the_bfd, g_switch_value);
+
+ /* Look through the sections and check for any which should not be
+ included in the link. We need to do this now, so that we can
+ notice when the backend linker tries to report multiple
+ definition errors for symbols which are in sections we aren't
+ going to link. FIXME: It might be better to entirely ignore
+ symbols which are defined in sections which are going to be
+ discarded. This would require modifying the backend linker for
+ each backend which might set the SEC_LINK_ONCE flag. If we do
+ this, we should probably handle SEC_EXCLUDE in the same way. */
+
+ bfd_map_over_sections (entry->the_bfd, section_already_linked, (PTR) entry);
}
void
static lang_output_section_statement_type *current_section;
-static int topower(x)
+static int
+topower (x)
int x;
{
- unsigned int i = 1;
+ unsigned int i = 1;
int l;
- if (x < 0) return -1;
+
+ if (x < 0)
+ return -1;
+
for (l = 0; l < 32; l++)
- {
- if (i >= x) return l;
- i<<=1;
- }
+ {
+ if (i >= (unsigned int) x)
+ return l;
+ i <<= 1;
+ }
+
return 0;
}
+
void
lang_enter_output_section_statement (output_section_statement_name,
- address_exp, flags, block_value,
+ address_exp, sectype, block_value,
align, subalign, ebase)
const char *output_section_statement_name;
etree_type * address_exp;
- int flags;
+ enum section_type sectype;
bfd_vma block_value;
etree_type *align;
etree_type *subalign;
os->addr_tree =
address_exp;
}
- os->flags = flags;
- if (flags & SEC_NEVER_LOAD)
- os->loadable = 0;
+ os->sectype = sectype;
+ if (sectype != noload_section)
+ os->flags = SEC_NO_FLAGS;
else
- os->loadable = 1;
+ os->flags = SEC_NEVER_LOAD;
os->block_value = block_value ? block_value : 1;
stat_ptr = &os->children;
current_target = default_target;
open_input_bfds (statement_list.head, false);
+ ldemul_after_open ();
+
/* Build all sets based on the information gathered from the input
files. */
ldctor_build_sets ();
ldemul_before_allocation ();
+ /* We must record the program headers before we try to fix the
+ section positions, since they will affect SIZEOF_HEADERS. */
+ lang_record_phdrs ();
+
/* Now run around and relax if we can */
if (command_line.relax)
{
abs_output_section,
&(statement_list.head), 0, (bfd_vma) 0, false);
-
- reset_memory_regions ();
-
/* Keep relaxing until bfd_relax_section gives up. */
do
{
+ reset_memory_regions ();
+
relax_again = false;
/* Do all the assignments with our current guesses as to
everything is. */
ldemul_after_allocation ();
+ /* Fix any .startof. or .sizeof. symbols. */
+ lang_set_startof ();
+
/* Do all the assignments, now that we know the final restingplaces
of all the symbols */
called by ENTRY in a linker script. Command line arguments take
precedence. */
+/* WINDOWS_NT. When an entry point has been specified, we will also force
+ this symbol to be defined by calling ldlang_add_undef (equivalent to
+ having switch -u entry_name on the command line). The reason we do
+ this is so that the user doesn't have to because they would have to use
+ the -u switch if they were specifying an entry point other than
+ _mainCRTStartup. Specifically, if creating a windows application, entry
+ point _WinMainCRTStartup must be specified.
+ What I have found for non console applications (entry not _mainCRTStartup)
+ is that the .obj that contains mainCRTStartup is brought in since it is
+ the first encountered in libc.lib and it has other symbols in it which will
+ be pulled in by the link process. To avoid this, adding -u with the entry
+ point name specified forces the correct .obj to be used. We can avoid
+ making the user do this by always adding the entry point name as an
+ undefined symbol. */
+
void
lang_add_entry (name, cmdline)
CONST char *name;
- int cmdline;
+ boolean cmdline;
{
- static int from_cmdline;
-
if (entry_symbol == NULL
|| cmdline
- || ! from_cmdline)
+ || ! entry_from_cmdline)
{
entry_symbol = name;
- from_cmdline = cmdline;
- }
+ entry_from_cmdline = cmdline;
+ }
+#if 0
+ /* don't do this yet. It seems to work (the executables run), but the
+ image created is very different from what I was getting before indicating
+ that something else is being pulled in. When everything else is working,
+ then try to put this back in to see if it will do the right thing for
+ other more complicated applications */
+ ldlang_add_undef (name);
+#endif
}
void
void
lang_add_reloc (reloc, howto, section, name, addend)
bfd_reloc_code_real_type reloc;
- const reloc_howto_type *howto;
+ reloc_howto_type *howto;
asection *section;
const char *name;
union etree_union *addend;
}
void
-lang_leave_output_section_statement (fill, memspec)
+lang_leave_output_section_statement (fill, memspec, phdrs)
bfd_vma fill;
- CONST char *memspec;
+ const char *memspec;
+ struct lang_output_section_phdr_list *phdrs;
{
current_section->fill = fill;
current_section->region = lang_memory_region_lookup (memspec);
+ current_section->phdrs = phdrs;
stat_ptr = &statement_list;
}
}
/* Set the output format type. -oformat overrides scripts. */
+
void
-lang_add_output_format (format, from_script)
- CONST char *format;
+lang_add_output_format (format, big, little, from_script)
+ const char *format;
+ const char *big;
+ const char *little;
int from_script;
{
if (output_target == NULL || !from_script)
- output_target = format;
+ {
+ if (command_line.endian == ENDIAN_BIG
+ && big != NULL)
+ format = big;
+ else if (command_line.endian == ENDIAN_LITTLE
+ && little != NULL)
+ format = little;
+
+ output_target = format;
+ }
}
/* Enter a group. This creates a new lang_group_statement, and sets
{
stat_ptr = &statement_list;
}
+
+/* Add a new program header. This is called for each entry in a PHDRS
+ command in a linker script. */
+
+void
+lang_new_phdr (name, type, filehdr, phdrs, at, flags)
+ const char *name;
+ etree_type *type;
+ boolean filehdr;
+ boolean phdrs;
+ etree_type *at;
+ etree_type *flags;
+{
+ struct lang_phdr *n, **pp;
+
+ n = (struct lang_phdr *) stat_alloc (sizeof (struct lang_phdr));
+ n->next = NULL;
+ n->name = name;
+ n->type = exp_get_value_int (type, 0, "program header type",
+ lang_final_phase_enum);
+ n->filehdr = filehdr;
+ n->phdrs = phdrs;
+ n->at = at;
+ n->flags = flags;
+
+ for (pp = &lang_phdr_list; *pp != NULL; pp = &(*pp)->next)
+ ;
+ *pp = n;
+}
+
+/* Record the program header information in the output BFD. FIXME: We
+ should not be calling an ELF specific function here. */
+
+static void
+lang_record_phdrs ()
+{
+ unsigned int alc;
+ asection **secs;
+ struct lang_output_section_phdr_list *last;
+ struct lang_phdr *l;
+ lang_statement_union_type *u;
+
+ alc = 10;
+ secs = (asection **) xmalloc (alc * sizeof (asection *));
+ last = NULL;
+ for (l = lang_phdr_list; l != NULL; l = l->next)
+ {
+ unsigned int c;
+ flagword flags;
+ bfd_vma at;
+
+ c = 0;
+ for (u = lang_output_section_statement.head;
+ u != NULL;
+ u = u->output_section_statement.next)
+ {
+ lang_output_section_statement_type *os;
+ struct lang_output_section_phdr_list *pl;
+
+ os = &u->output_section_statement;
+
+ pl = os->phdrs;
+ if (pl != NULL)
+ last = pl;
+ else
+ {
+ if (os->sectype == noload_section
+ || os->bfd_section == NULL
+ || (os->bfd_section->flags & SEC_ALLOC) == 0)
+ continue;
+ pl = last;
+ }
+
+ if (os->bfd_section == NULL)
+ continue;
+
+ for (; pl != NULL; pl = pl->next)
+ {
+ if (strcmp (pl->name, l->name) == 0)
+ {
+ if (c >= alc)
+ {
+ alc *= 2;
+ secs = ((asection **)
+ xrealloc (secs, alc * sizeof (asection *)));
+ }
+ secs[c] = os->bfd_section;
+ ++c;
+ pl->used = true;
+ }
+ }
+ }
+
+ if (l->flags == NULL)
+ flags = 0;
+ else
+ flags = exp_get_vma (l->flags, 0, "phdr flags",
+ lang_final_phase_enum);
+
+ if (l->at == NULL)
+ at = 0;
+ else
+ at = exp_get_vma (l->at, 0, "phdr load address",
+ lang_final_phase_enum);
+
+ if (! bfd_record_phdr (output_bfd, l->type,
+ l->flags == NULL ? false : true,
+ flags,
+ l->at == NULL ? false : true,
+ at, l->filehdr, l->phdrs, c, secs))
+ einfo ("%F%P: bfd_record_phdr failed: %E\n");
+ }
+
+ free (secs);
+
+ /* Make sure all the phdr assignments succeeded. */
+ for (u = lang_output_section_statement.head;
+ u != NULL;
+ u = u->output_section_statement.next)
+ {
+ struct lang_output_section_phdr_list *pl;
+
+ if (u->output_section_statement.bfd_section == NULL)
+ continue;
+
+ for (pl = u->output_section_statement.phdrs;
+ pl != NULL;
+ pl = pl->next)
+ if (! pl->used && strcmp (pl->name, "NONE") != 0)
+ einfo ("%X%P: section `%s' assigned to non-existent phdr `%s'\n",
+ u->output_section_statement.name, pl->name);
+ }
+}
+
+/* Record a list of sections which may not be cross referenced. */
+
+void
+lang_add_nocrossref (l)
+ struct lang_nocrossref *l;
+{
+ struct lang_nocrossrefs *n;
+
+ n = (struct lang_nocrossrefs *) xmalloc (sizeof *n);
+ n->next = nocrossref_list;
+ n->list = l;
+ nocrossref_list = n;
+
+ /* Set notice_all so that we get informed about all symbols. */
+ link_info.notice_all = true;
+}
+\f
+/* Overlay handling. We handle overlays with some static variables. */
+
+/* The overlay virtual address. */
+static etree_type *overlay_vma;
+
+/* The overlay load address. */
+static etree_type *overlay_lma;
+
+/* Whether nocrossrefs is set for this overlay. */
+static int overlay_nocrossrefs;
+
+/* An expression for the maximum section size seen so far. */
+static etree_type *overlay_max;
+
+/* A list of all the sections in this overlay. */
+
+struct overlay_list
+{
+ struct overlay_list *next;
+ lang_output_section_statement_type *os;
+};
+
+static struct overlay_list *overlay_list;
+
+/* Start handling an overlay. */
+
+void
+lang_enter_overlay (vma_expr, lma_expr, nocrossrefs)
+ etree_type *vma_expr;
+ etree_type *lma_expr;
+ int nocrossrefs;
+{
+ /* The grammar should prevent nested overlays from occurring. */
+ ASSERT (overlay_vma == NULL
+ && overlay_lma == NULL
+ && overlay_list == NULL
+ && overlay_max == NULL);
+
+ overlay_vma = vma_expr;
+ overlay_lma = lma_expr;
+ overlay_nocrossrefs = nocrossrefs;
+}
+
+/* Start a section in an overlay. We handle this by calling
+ lang_enter_output_section_statement with the correct VMA and LMA. */
+
+void
+lang_enter_overlay_section (name)
+ const char *name;
+{
+ struct overlay_list *n;
+ etree_type *size;
+
+ lang_enter_output_section_statement (name, overlay_vma, normal_section,
+ 0, 0, 0, overlay_lma);
+
+ /* If this is the first section, then base the VMA and LMA of future
+ sections on this one. This will work correctly even if `.' is
+ used in the addresses. */
+ if (overlay_list == NULL)
+ {
+ overlay_vma = exp_nameop (ADDR, name);
+ overlay_lma = exp_nameop (LOADADDR, name);
+ }
+
+ /* Remember the section. */
+ n = (struct overlay_list *) xmalloc (sizeof *n);
+ n->os = current_section;
+ n->next = overlay_list;
+ overlay_list = n;
+
+ size = exp_nameop (SIZEOF, name);
+
+ /* Adjust the LMA for the next section. */
+ overlay_lma = exp_binop ('+', overlay_lma, size);
+
+ /* Arrange to work out the maximum section end address. */
+ if (overlay_max == NULL)
+ overlay_max = size;
+ else
+ overlay_max = exp_binop (MAX, overlay_max, size);
+}
+
+/* Finish a section in an overlay. There isn't any special to do
+ here. */
+
+void
+lang_leave_overlay_section (fill, phdrs)
+ bfd_vma fill;
+ struct lang_output_section_phdr_list *phdrs;
+{
+ const char *name;
+ char *clean, *s2;
+ const char *s1;
+ char *buf;
+
+ name = current_section->name;
+
+ lang_leave_output_section_statement (fill, "*default*", phdrs);
+
+ /* Define the magic symbols. */
+
+ clean = xmalloc (strlen (name) + 1);
+ s2 = clean;
+ for (s1 = name; *s1 != '\0'; s1++)
+ if (isalnum (*s1) || *s1 == '_')
+ *s2++ = *s1;
+ *s2 = '\0';
+
+ buf = xmalloc (strlen (clean) + sizeof "__load_start_");
+ sprintf (buf, "__load_start_%s", clean);
+ lang_add_assignment (exp_assop ('=', buf,
+ exp_nameop (LOADADDR, name)));
+
+ buf = xmalloc (strlen (clean) + sizeof "__load_stop_");
+ sprintf (buf, "__load_stop_%s", clean);
+ lang_add_assignment (exp_assop ('=', buf,
+ exp_binop ('+',
+ exp_nameop (LOADADDR, name),
+ exp_nameop (SIZEOF, name))));
+
+ free (clean);
+}
+
+/* Finish an overlay. If there are any overlay wide settings, this
+ looks through all the sections in the overlay and sets them. */
+
+void
+lang_leave_overlay (fill, memspec, phdrs)
+ bfd_vma fill;
+ const char *memspec;
+ struct lang_output_section_phdr_list *phdrs;
+{
+ lang_memory_region_type *region;
+ struct overlay_list *l;
+ struct lang_nocrossref *nocrossref;
+
+ if (memspec == NULL)
+ region = NULL;
+ else
+ region = lang_memory_region_lookup (memspec);
+
+ nocrossref = NULL;
+
+ l = overlay_list;
+ while (l != NULL)
+ {
+ struct overlay_list *next;
+
+ if (fill != 0 && l->os->fill == 0)
+ l->os->fill = fill;
+ if (region != NULL && l->os->region == NULL)
+ l->os->region = region;
+ if (phdrs != NULL && l->os->phdrs == NULL)
+ l->os->phdrs = phdrs;
+
+ if (overlay_nocrossrefs)
+ {
+ struct lang_nocrossref *nc;
+
+ nc = (struct lang_nocrossref *) xmalloc (sizeof *nc);
+ nc->name = l->os->name;
+ nc->next = nocrossref;
+ nocrossref = nc;
+ }
+
+ next = l->next;
+ free (l);
+ l = next;
+ }
+
+ if (nocrossref != NULL)
+ lang_add_nocrossref (nocrossref);
+
+ /* Update . for the end of the overlay. */
+ lang_add_assignment (exp_assop ('=', ".",
+ exp_binop ('+', overlay_vma, overlay_max)));
+
+ overlay_vma = NULL;
+ overlay_lma = NULL;
+ overlay_nocrossrefs = 0;
+ overlay_list = NULL;
+ overlay_max = NULL;
+}
+\f
+/* Version handling. This is only useful for ELF. */
+
+/* This global variable holds the version tree that we build. */
+
+struct bfd_elf_version_tree *lang_elf_version_info;
+
+/* This is called for each variable name or match expression. */
+
+struct bfd_elf_version_expr *
+lang_new_vers_regex (orig, new)
+ struct bfd_elf_version_expr *orig;
+ const char *new;
+{
+ struct bfd_elf_version_expr *ret;
+
+ ret = (struct bfd_elf_version_expr *) xmalloc (sizeof *ret);
+ ret->next = orig;
+ ret->match = new;
+ return ret;
+}
+
+/* This is called for each set of variable names and match
+ expressions. */
+
+struct bfd_elf_version_tree *
+lang_new_vers_node (globals, locals)
+ struct bfd_elf_version_expr *globals;
+ struct bfd_elf_version_expr *locals;
+{
+ struct bfd_elf_version_tree *ret;
+
+ ret = (struct bfd_elf_version_tree *) xmalloc (sizeof *ret);
+ ret->next = NULL;
+ ret->name = NULL;
+ ret->vernum = 0;
+ ret->globals = globals;
+ ret->locals = locals;
+ ret->deps = NULL;
+ ret->name_indx = (unsigned int) -1;
+ ret->used = 0;
+ return ret;
+}
+
+/* This static variable keeps track of version indices. */
+
+static int version_index;
+
+/* This is called when we know the name and dependencies of the
+ version. */
+
+void
+lang_register_vers_node (name, version, deps)
+ const char *name;
+ struct bfd_elf_version_tree *version;
+ struct bfd_elf_version_deps *deps;
+{
+ struct bfd_elf_version_tree *t, **pp;
+ struct bfd_elf_version_expr *e1;
+
+ /* Make sure this node has a unique name. */
+ for (t = lang_elf_version_info; t != NULL; t = t->next)
+ if (strcmp (t->name, name) == 0)
+ einfo ("%X%P: duplicate version tag `%s'\n", name);
+
+ /* Check the global and local match names, and make sure there
+ aren't any duplicates. */
+
+ for (e1 = version->globals; e1 != NULL; e1 = e1->next)
+ {
+ for (t = lang_elf_version_info; t != NULL; t = t->next)
+ {
+ struct bfd_elf_version_expr *e2;
+
+ for (e2 = t->globals; e2 != NULL; e2 = e2->next)
+ if (strcmp (e1->match, e2->match) == 0)
+ einfo ("%X%P: duplicate expression `%s' in version information\n",
+ e1->match);
+
+ for (e2 = t->locals; e2 != NULL; e2 = e2->next)
+ if (strcmp (e1->match, e2->match) == 0)
+ einfo ("%X%P: duplicate expression `%s' in version information\n",
+ e1->match);
+ }
+ }
+
+ for (e1 = version->locals; e1 != NULL; e1 = e1->next)
+ {
+ for (t = lang_elf_version_info; t != NULL; t = t->next)
+ {
+ struct bfd_elf_version_expr *e2;
+
+ for (e2 = t->globals; e2 != NULL; e2 = e2->next)
+ if (strcmp (e1->match, e2->match) == 0)
+ einfo ("%X%P: duplicate expression `%s' in version information\n",
+ e1->match);
+
+ for (e2 = t->locals; e2 != NULL; e2 = e2->next)
+ if (strcmp (e1->match, e2->match) == 0)
+ einfo ("%X%P: duplicate expression `%s' in version information\n",
+ e1->match);
+ }
+ }
+
+ version->deps = deps;
+ version->name = name;
+ ++version_index;
+ version->vernum = version_index;
+
+ for (pp = &lang_elf_version_info; *pp != NULL; pp = &(*pp)->next)
+ ;
+ *pp = version;
+}
+
+/* This is called when we see a version dependency. */
+
+struct bfd_elf_version_deps *
+lang_add_vers_depend (list, name)
+ struct bfd_elf_version_deps *list;
+ const char *name;
+{
+ struct bfd_elf_version_deps *ret;
+ struct bfd_elf_version_tree *t;
+
+ ret = (struct bfd_elf_version_deps *) xmalloc (sizeof *ret);
+ ret->next = list;
+
+ for (t = lang_elf_version_info; t != NULL; t = t->next)
+ {
+ if (strcmp (t->name, name) == 0)
+ {
+ ret->version_needed = t;
+ return ret;
+ }
+ }
+
+ einfo ("%X%P: unable to find version dependency `%s'\n", name);
+
+ return ret;
+}
projects / deliverable / binutils-gdb.git / blobdiff