diff options
Diffstat (limited to 'ld/ldlang.c')
| -rw-r--r-- | ld/ldlang.c | 475 |
1 files changed, 198 insertions, 277 deletions
diff --git a/ld/ldlang.c b/ld/ldlang.c index aa5c681..a2c533d 100644 --- a/ld/ldlang.c +++ b/ld/ldlang.c @@ -77,16 +77,9 @@ static boolean wildcardp PARAMS ((const char *)); static lang_statement_union_type *wild_sort PARAMS ((lang_wild_statement_type *, lang_input_statement_type *, asection *)); -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, 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, @@ -142,20 +135,23 @@ 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)); -static void lang_gc_wild_section - PARAMS ((lang_wild_statement_type *, const char *, - lang_input_statement_type *)); -static void lang_gc_wild_file - PARAMS ((lang_wild_statement_type *, const char *, - lang_input_statement_type *)); static void lang_gc_wild PARAMS ((lang_wild_statement_type *, const char *, const char *)); static void lang_gc_sections_1 PARAMS ((lang_statement_union_type *)); static void lang_gc_sections PARAMS ((void)); static void lang_do_version_exports_section PARAMS ((void)); static void lang_check_section_addresses PARAMS ((void)); - +typedef void (*callback_t) PARAMS ((lang_wild_statement_type *, + asection *, lang_input_statement_type *, + void *)); +static void walk_wild_section + PARAMS ((lang_wild_statement_type *, const char *, + lang_input_statement_type *, callback_t, void *)); +static void walk_wild_file + PARAMS ((lang_wild_statement_type *, const char *, + lang_input_statement_type *, callback_t, void *)); + /* EXPORTS */ lang_output_section_statement_type *abs_output_section; lang_statement_list_type *stat_ptr = &statement_list; @@ -193,6 +189,142 @@ stat_alloc (size) } /*---------------------------------------------------------------------- + Generic traversal routines for finding matching sections. +*/ + +static void +walk_wild_section (ptr, section, file, callback, data) + lang_wild_statement_type *ptr; + const char *section; + lang_input_statement_type *file; + callback_t callback; + void *data; +{ + /* Don't process sections from files which were excluded. */ + if (ptr->exclude_filename != NULL) + { + boolean match; + + if (wildcardp (ptr->exclude_filename)) + match = fnmatch (ptr->exclude_filename, file->filename, 0) == 0 ? true : false; + else + match = strcmp (ptr->exclude_filename, file->filename) == 0 ? true : false; + + if (match) + return; + } + + 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; + + 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) + (*callback) (ptr, s, file, data); + } + } +} + +/* Handle a wild statement for a single file F. */ + +static void +walk_wild_file (s, section, f, callback, data) + lang_wild_statement_type *s; + const char *section; + lang_input_statement_type *f; + callback_t callback; + void *data; +{ + if (f->the_bfd == NULL + || ! bfd_check_format (f->the_bfd, bfd_archive)) + walk_wild_section (s, section, f, callback, data); + 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) + { + walk_wild_section (s, section, + (lang_input_statement_type *) member->usrdata, + callback, data); + } + + member = bfd_openr_next_archived_file (f->the_bfd, member); + } + } +} + +static void +walk_wild (s, section, file, callback, data) + lang_wild_statement_type *s; + const char *section; + const char *file; + callback_t callback; + void *data; +{ + lang_input_statement_type *f; + + if (file == (char *) NULL) + { + /* Perform the iteration over all files in the list. */ + for (f = (lang_input_statement_type *) file_chain.head; + f != (lang_input_statement_type *) NULL; + f = (lang_input_statement_type *) f->next) + { + walk_wild_file (s, section, f, callback, data); + } + } + 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) + walk_wild_file (s, section, f, callback, data); + } + } + else + { + /* Perform the iteration over a single file. */ + f = lookup_name (file); + walk_wild_file (s, section, f, callback, data); + } +} + +/*---------------------------------------------------------------------- lang_for_each_statement walks the parse tree and calls the provided function for each node */ @@ -1070,104 +1202,53 @@ wild_sort (wild, file, section) NULL, in which case it is a wild card. */ static void -wild_section (ptr, section, file, output) +output_section_callback (ptr, section, file, output) lang_wild_statement_type *ptr; - const char *section; + asection *section; lang_input_statement_type *file; - lang_output_section_statement_type *output; + void *output; { - - /* Don't process sections from files which were excluded. */ - if (ptr->exclude_filename != NULL) - { - boolean match; - - if (wildcardp (ptr->exclude_filename)) - match = fnmatch (ptr->exclude_filename, file->filename, 0) == 0 ? true : false; - else - match = strcmp (ptr->exclude_filename, file->filename) == 0 ? true : false; - - if (match) - return; - } - - if (file->just_syms_flag == false) + lang_statement_union_type *before; + + /* If the wild pattern was marked KEEP, the member sections + should be as well. */ + if (ptr->keep_sections) + section->flags |= SEC_KEEP; + + before = wild_sort (ptr, file, section); + + /* Here BEFORE points to the lang_input_section which + should follow the one we are about to add. If BEFORE + is NULL, then the section should just go at the end + of the current list. */ + + if (before == NULL) + wild_doit (&ptr->children, section, + (lang_output_section_statement_type *) output, + file); + else { - 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) + lang_statement_list_type list; + lang_statement_union_type **pp; + + lang_list_init (&list); + wild_doit (&list, section, + (lang_output_section_statement_type *) output, + file); + + /* If we are discarding the section, LIST.HEAD will + be NULL. */ + if (list.head != NULL) { - boolean match; - - /* Attach all sections named SECTION. If SECTION is NULL, - then attach all sections. - - Previously, if SECTION was NULL, this code did not call - wild_doit if the SEC_IS_COMMON flag was set for the - section. I did not understand that, and I took it out. - --ian@cygnus.com. */ - - 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) - { - lang_statement_union_type *before; - - /* If the wild pattern was marked KEEP, the member sections - should be as well. */ - if (ptr->keep_sections) - s->flags |= SEC_KEEP; - - before = wild_sort (ptr, file, s); - - /* Here BEFORE points to the lang_input_section which - should follow the one we are about to add. If BEFORE - is NULL, then the section should just go at the end - of the current list. */ - - if (before == NULL) - wild_doit (&ptr->children, s, output, file); - else - { - lang_statement_list_type list; - lang_statement_union_type **pp; - - lang_list_init (&list); - wild_doit (&list, s, output, file); - - /* If we are discarding the section, LIST.HEAD will - be NULL. */ - if (list.head != NULL) - { - ASSERT (list.head->next == NULL); - - for (pp = &ptr->children.head; - *pp != before; - pp = &(*pp)->next) - ASSERT (*pp != NULL); - - list.head->next = *pp; - *pp = list.head; - } - } - } + ASSERT (list.head->next == NULL); + + for (pp = &ptr->children.head; + *pp != before; + pp = &(*pp)->next) + ASSERT (*pp != NULL); + + list.head->next = *pp; + *pp = list.head; } } } @@ -1320,43 +1401,7 @@ load_symbols (entry, place) 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 @@ -1371,34 +1416,7 @@ wild (s, section, file, target, output) const char *target; lang_output_section_statement_type *output; { - lang_input_statement_type *f; - - if (file == (char *) NULL) - { - /* Perform the iteration over all files in the list */ - for (f = (lang_input_statement_type *) file_chain.head; - f != (lang_input_statement_type *) NULL; - f = (lang_input_statement_type *) f->next) - { - 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 */ - f = lookup_name (file); - wild_file (s, section, f, output); - } + walk_wild (s, section, file, output_section_callback, (void *) output); if (section != (char *) NULL && strcmp (section, "COMMON") == 0 @@ -3487,90 +3505,20 @@ reset_memory_regions () } } -/* ??? At some point this traversal for GC should share code with the - traversal for manipulating the output file. */ - /* Expand a wild statement for a particular FILE, marking its sections KEEP as needed. SECTION may be NULL, in which case it is a wild card. */ static void -lang_gc_wild_section (ptr, section, file) +gc_section_callback (ptr, section, file, data) lang_wild_statement_type *ptr; - const char *section; + asection *section; lang_input_statement_type *file; + void *data; { - 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; - - 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) - { - /* If the wild pattern was marked KEEP, the member sections - should be as well. */ - if (ptr->keep_sections) - s->flags |= SEC_KEEP; - } - } - } -} - -/* Handle a wild statement for a single file F. */ - -static void -lang_gc_wild_file (s, section, f) - lang_wild_statement_type *s; - const char *section; - lang_input_statement_type *f; -{ - if (f->the_bfd == NULL - || ! bfd_check_format (f->the_bfd, bfd_archive)) - lang_gc_wild_section (s, section, f); - 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) - { - lang_gc_wild_section (s, section, - (lang_input_statement_type *) member->usrdata); - } - - member = bfd_openr_next_archived_file (f->the_bfd, member); - } - } + /* If the wild pattern was marked KEEP, the member sections + should be as well. */ + if (ptr->keep_sections) + section->flags |= SEC_KEEP; } /* Handle a wild statement, marking it against GC. SECTION or FILE or both @@ -3582,34 +3530,7 @@ lang_gc_wild (s, section, file) const char *section; const char *file; { - lang_input_statement_type *f; - - if (file == (char *) NULL) - { - /* Perform the iteration over all files in the list */ - for (f = (lang_input_statement_type *) file_chain.head; - f != (lang_input_statement_type *) NULL; - f = (lang_input_statement_type *) f->next) - { - lang_gc_wild_file (s, section, f); - } - } - 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) - lang_gc_wild_file (s, section, f); - } - } - else - { - /* Perform the iteration over a single file */ - f = lookup_name (file); - lang_gc_wild_file (s, section, f); - } + walk_wild (s, section, file, gc_section_callback, NULL); } /* Iterate over sections marking them against GC. */ |