/* Linker command language support.
- Copyright (C) 1991, 92, 93, 94, 95, 96, 97, 98, 99, 2000, 2001
+ Copyright 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000,
+ 2001
Free Software Foundation, Inc.
This file is part of GLD, the Gnu Linker.
#include <ctype.h>
/* FORWARDS */
-static lang_statement_union_type *new_statement PARAMS ((enum statement_enum,
- size_t,
- lang_statement_list_type *));
+static lang_statement_union_type *new_statement
+ PARAMS ((enum statement_enum, size_t, lang_statement_list_type *));
/* LOCALS */
static struct obstack stat_obstack;
fill_type, bfd_vma, boolean));
static void lang_finish PARAMS ((void));
static void ignore_bfd_errors PARAMS ((const char *, ...));
+static void record_bfd_errors PARAMS ((const char *, ...));
static void lang_check PARAMS ((void));
static void lang_common PARAMS ((void));
static boolean lang_one_common PARAMS ((struct bfd_link_hash_entry *, PTR));
etree_type *base; /* Relocation base - or null */
-#if defined(__STDC__) || defined(ALMOST_STDC)
+#if defined (__STDC__) || defined (ALMOST_STDC)
#define cat(a,b) a##b
#else
#define cat(a,b) a/**/b
#endif
-/* Don't beautify the line below with "innocent" whitespace, it breaks the K&R C preprocessor! */
-#define new_stat(x, y) (cat (x,_type)*) new_statement (cat (x,_enum), sizeof (cat (x,_type)), y)
+/* Don't beautify the line below with "innocent" whitespace, it breaks
+ the K&R C preprocessor! */
+#define new_stat(x, y) \
+ (cat (x,_type)*) new_statement (cat (x,_enum), sizeof (cat (x,_type)), y)
-#define outside_section_address(q) ((q)->output_offset + (q)->output_section->vma)
+#define outside_section_address(q) \
+ ((q)->output_offset + (q)->output_section->vma)
-#define outside_symbol_address(q) ((q)->value + outside_section_address (q->section))
+#define outside_symbol_address(q) \
+ ((q)->value + outside_section_address (q->section))
#define SECTION_NAME_MAP_LENGTH (16)
if (ptr->exclude_filename_list != NULL)
{
struct name_list *list_tmp;
- for (list_tmp = ptr->exclude_filename_list; list_tmp; list_tmp = list_tmp->next)
+ for (list_tmp = ptr->exclude_filename_list;
+ list_tmp;
+ list_tmp = list_tmp->next)
{
boolean match;
if (wildcardp (list_tmp->name))
- match = fnmatch (list_tmp->name, file->filename, 0) == 0 ? true : false;
+ match = fnmatch (list_tmp->name, file->filename, 0) == 0;
else
- match = strcmp (list_tmp->name, file->filename) == 0 ? true : false;
+ match = strcmp (list_tmp->name, file->filename) == 0;
if (match)
return;
if (section == NULL)
match = true;
else if (wildcard)
- match = fnmatch (section, sname, 0) == 0 ? true : false;
+ match = fnmatch (section, sname, 0) == 0;
else
- match = strcmp (section, sname) == 0 ? true : false;
+ match = strcmp (section, sname) == 0;
/* If this is a wild-card output section statement, exclude
sections that match UNIQUE_SECTION_LIST. */
We can be supplied with requests for input files more than once;
they may, for example be split over serveral lines like foo.o(.text)
- foo.o(.data) etc, so when asked for a file we check that we havn't
+ foo.o(.data) etc, so when asked for a file we check that we haven't
got it already so we don't duplicate the bfd. */
static lang_input_statement_type *
lang_memory_region_type *new =
(lang_memory_region_type *) stat_alloc (sizeof (lang_memory_region_type));
- new->name = buystring (name);
+ new->name = xstrdup (name);
new->next = (lang_memory_region_type *) NULL;
*lang_memory_region_list_tail = new;
flagword flags;
if (output->bfd_section == NULL)
- {
- init_os (output);
- first = true;
- }
- else
- first = false;
+ init_os (output);
+
+ first = ! output->bfd_section->linker_has_input;
+ output->bfd_section->linker_has_input = 1;
/* Add a section reference to the list. */
new = new_stat (lang_input_section, ptr);
if (! first && (section->output_section->flags & SEC_READONLY) == 0)
flags &= ~ SEC_READONLY;
+ /* Keep SEC_MERGE and SEC_STRINGS only if they are the same. */
+ if (! first
+ && ((section->output_section->flags & (SEC_MERGE | SEC_STRINGS))
+ != (flags & (SEC_MERGE | SEC_STRINGS))
+ || ((flags & SEC_MERGE)
+ && section->output_section->entsize != section->entsize)))
+ {
+ section->output_section->flags &= ~ (SEC_MERGE | SEC_STRINGS);
+ flags &= ~ (SEC_MERGE | SEC_STRINGS);
+ }
+
section->output_section->flags |= flags;
+ if (flags & SEC_MERGE)
+ section->output_section->entsize = section->entsize;
+
/* If SEC_READONLY is not set in the input section, then clear
it from the output section. */
if ((section->flags & SEC_READONLY) == 0)
lang_statement_list_type *hold;
err = bfd_get_error ();
+
+ /* See if the emulation has some special knowledge. */
+ if (ldemul_unrecognized_file (entry))
+ return;
+
if (err == bfd_error_file_ambiguously_recognized)
{
char **p;
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;
/* Oh dear, we now have two potential candidates for a successful match.
Compare their names and choose the better one. */
- if (name_compare (target->name, original->name) > name_compare (winner->name, original->name))
+ if (name_compare (target->name, original->name)
+ > name_compare (winner->name, original->name))
winner = target;
/* Keep on searching until wqe have checked them all. */
/* Try to find a target as similar as possible to
the default target, but which has the desired
endian characteristic. */
- (void) bfd_search_for_target (closest_target_match, (PTR) target);
+ (void) bfd_search_for_target (closest_target_match,
+ (PTR) target);
/* Oh dear - we could not find any targets that
satisfy our requirements. */
new->next = ldlang_undef_chain_list_head;
ldlang_undef_chain_list_head = new;
- new->name = buystring (name);
+ new->name = xstrdup (name);
}
/* Run through the list of undefineds created above and place them
}
#define IGNORE_SECTION(bfd, s) \
- (((bfd_get_section_flags (bfd, s) & (SEC_ALLOC | SEC_LOAD)) != (SEC_ALLOC | SEC_LOAD)) \
+ (((bfd_get_section_flags (bfd, s) & (SEC_ALLOC | SEC_LOAD)) \
+ != (SEC_ALLOC | SEC_LOAD)) \
|| bfd_section_size (bfd, s) == 0)
/* Check to see if any allocated sections overlap with other allocated
case lang_output_section_statement_enum:
{
bfd_vma after;
- lang_output_section_statement_type *os = &s->output_section_statement;
+ lang_output_section_statement_type *os;
+ os = &s->output_section_statement;
if (os->bfd_section == NULL)
/* This section was never actually created. */
break;
&& ! link_info.relocateable
&& strcmp (os->region->name, "*default*") == 0
&& lang_memory_region_list != NULL
- && (strcmp (lang_memory_region_list->name, "*default*") != 0
+ && (strcmp (lang_memory_region_list->name,
+ "*default*") != 0
|| lang_memory_region_list->next != NULL))
einfo (_("%P: warning: no memory region specified for section `%s'\n"),
- bfd_get_section_name (output_bfd, os->bfd_section));
+ bfd_get_section_name (output_bfd,
+ os->bfd_section));
dot = os->region->current;
bfd_vma olddot;
olddot = dot;
- dot = align_power (dot, os->bfd_section->alignment_power);
+ 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"),
case lang_output_section_statement_enum:
{
- lang_output_section_statement_type *os =
- &(s->output_section_statement);
+ lang_output_section_statement_type *os;
+ os = &(s->output_section_statement);
if (os->bfd_section != NULL)
{
dot = os->bfd_section->vma;
h = bfd_link_hash_lookup (link_info.hash, buf, false, false, true);
if (h != NULL && h->type == bfd_link_hash_undefined)
{
- unsigned opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
- ldfile_output_machine);
+ unsigned opb;
+
+ opb = bfd_arch_mach_octets_per_byte (ldfile_output_architecture,
+ ldfile_output_machine);
h->type = bfd_link_hash_defined;
if (s->_cooked_size != 0)
h->u.def.value = s->_cooked_size / opb;
}
}
+/* This is the routine to handle BFD error messages. */
+
+#ifdef ANSI_PROTOTYPES
+
+static void
+record_bfd_errors (const char *s, ...)
+{
+ va_list p;
+
+ einfo ("%P: ");
+
+ va_start (p, s);
+
+ vfprintf (stderr, s, p);
+
+ va_end (p);
+
+ fprintf (stderr, "\n");
+
+ einfo ("%X");
+}
+
+#else /* ! defined (ANSI_PROTOTYPES) */
+
+static void
+record_bfd_errors (va_alist)
+ va_dcl
+{
+ va_list p;
+ const char *s;
+
+ einfo ("%P: ");
+
+ va_start (p);
+
+ s = va_arg (p, const char *);
+ vfprintf (stderr, s, p);
+
+ va_end (p);
+
+ fprintf (stderr, "\n");
+
+ einfo ("%X");
+}
+
+#endif /* ! defined (ANSI_PROTOTYPES) */
+
/* This is a small function used when we want to ignore errors from
BFD. */
if (command_line.gc_sections)
lang_gc_sections ();
+ /* If there were any SEC_MERGE sections, finish their merging, so that
+ section sizes can be computed. This has to be done after GC of sections,
+ so that GCed sections are not merged, but before assigning output
+ sections, since removing whole input sections is hard then. */
+ bfd_merge_sections (output_bfd, &link_info);
+
/* Size up the common data. */
lang_common ();
const char *name;
etree_type *address;
{
- lang_address_statement_type *ad = new_stat (lang_address_statement, stat_ptr);
+ lang_address_statement_type *ad;
+ ad = new_stat (lang_address_statement, stat_ptr);
ad->section_name = name;
ad->address = address;
}
lang_final_phase_enum);
if (! bfd_record_phdr (output_bfd, l->type,
- l->flags == NULL ? false : true,
- flags,
- l->at == NULL ? false : true,
+ l->flags != NULL, flags, l->at != NULL,
at, l->filehdr, l->phdrs, c, secs))
einfo (_("%F%P: bfd_record_phdr failed: %E\n"));
}
l->os->region = region;
/* We only set lma_region for the first overlay section, as
subsequent overlay sections will have load_base set relative
- to the first section. */
- if (lma_region != NULL && l->os->lma_region == NULL && l->next == NULL)
+ to the first section. Also, don't set lma_region if
+ load_base is specified. FIXME: There should really be a test
+ that `AT ( LDADDR )' doesn't conflict with `AT >LMA_REGION'
+ rather than letting LDADDR simply override LMA_REGION. */
+ if (lma_region != NULL && l->os->lma_region == NULL
+ && l->next == NULL && l->os->load_base == NULL)
l->os->lma_region = lma_region;
if (phdrs != NULL && l->os->phdrs == NULL)
l->os->phdrs = phdrs;
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