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author | Alan Modra <amodra@gmail.com> | 2014-01-22 16:05:12 +1030 |
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committer | Alan Modra <amodra@gmail.com> | 2014-01-22 16:21:34 +1030 |
commit | 16e4ecc0dbe114cfc97fe2cd32a035ae4c37f22b (patch) | |
tree | a48afd646fe4928d6546cc9c25fba25543fbcdb4 /ld | |
parent | cda796e168a389624b4e06031922bf5eaf0b6f51 (diff) | |
download | fsf-binutils-gdb-16e4ecc0dbe114cfc97fe2cd32a035ae4c37f22b.zip fsf-binutils-gdb-16e4ecc0dbe114cfc97fe2cd32a035ae4c37f22b.tar.gz fsf-binutils-gdb-16e4ecc0dbe114cfc97fe2cd32a035ae4c37f22b.tar.bz2 |
Display the reference causing a shared library to be needed
Adds a section for --as-needed libraries to a linker map file, similar
to what we do for archive libraries.
bfd/
* elflink.c (elf_link_add_object_symbols): Call minfo for --as-needed.
ld/
* ldlang.c (asneeded_list_head, asneeded_list_tail): New vars.
(lang_init): Initialise them.
(lang_print_asneeded): New function.
(lang_process): Call lang_print_asneeded.
* ldlang.h (struct asneeded_minfo): New.
(asneeded_list_tail): Declare.
* ldmain.c (add_archive_element): Improve archive map heading.
* ldmisc.c (minfo): Stash --as-needed info.
Diffstat (limited to 'ld')
-rw-r--r-- | ld/ChangeLog | 11 | ||||
-rw-r--r-- | ld/ldlang.c | 44 | ||||
-rw-r--r-- | ld/ldlang.h | 9 | ||||
-rw-r--r-- | ld/ldmain.c | 3 | ||||
-rw-r--r-- | ld/ldmisc.c | 17 |
5 files changed, 82 insertions, 2 deletions
diff --git a/ld/ChangeLog b/ld/ChangeLog index 0645c2d..59e9d36 100644 --- a/ld/ChangeLog +++ b/ld/ChangeLog @@ -1,5 +1,16 @@ 2014-01-22 Alan Modra <amodra@gmail.com> + * ldlang.c (asneeded_list_head, asneeded_list_tail): New vars. + (lang_init): Initialise them. + (lang_print_asneeded): New function. + (lang_process): Call lang_print_asneeded. + * ldlang.h (struct asneeded_minfo): New. + (asneeded_list_tail): Declare. + * ldmain.c (add_archive_element): Improve archive map heading. + * ldmisc.c (minfo): Stash --as-needed info. + +2014-01-22 Alan Modra <amodra@gmail.com> + * ld.h (struct map_symbol_def): Move to.. * ldlang.h: ..here. * ldlang.c (print_assignment): Don't set expld.assign_name to dot. diff --git a/ld/ldlang.c b/ld/ldlang.c index 62f85bc..1a0d48f 100644 --- a/ld/ldlang.c +++ b/ld/ldlang.c @@ -67,6 +67,7 @@ static struct bfd_hash_table lang_definedness_table; static lang_statement_list_type *stat_save[10]; static lang_statement_list_type **stat_save_ptr = &stat_save[0]; static struct unique_sections *unique_section_list; +static struct asneeded_minfo *asneeded_list_head; /* Forward declarations. */ static void exp_init_os (etree_type *); @@ -105,6 +106,7 @@ bfd_boolean lang_float_flag = FALSE; bfd_boolean delete_output_file_on_failure = FALSE; struct lang_phdr *lang_phdr_list; struct lang_nocrossrefs *nocrossref_list; +struct asneeded_minfo **asneeded_list_tail; /* Functions that traverse the linker script and might evaluate DEFINED() need to increment this at the start of the traversal. */ @@ -1228,6 +1230,9 @@ lang_init (void) sizeof (struct lang_definedness_hash_entry), 13)) einfo (_("%P%F: can not create hash table: %E\n")); + + asneeded_list_head = NULL; + asneeded_list_tail = &asneeded_list_head; } void @@ -1954,6 +1959,43 @@ lang_insert_orphan (asection *s, } static void +lang_print_asneeded (void) +{ + struct asneeded_minfo *m; + char buf[100]; + + if (asneeded_list_head == NULL) + return; + + sprintf (buf, _("\nAs-needed library included " + "to satisfy reference by file (symbol)\n\n")); + minfo ("%s", buf); + + for (m = asneeded_list_head; m != NULL; m = m->next) + { + size_t len; + + minfo ("%s", m->soname); + len = strlen (m->soname); + + if (len >= 29) + { + print_nl (); + len = 0; + } + while (len < 30) + { + print_space (); + ++len; + } + + if (m->ref != NULL) + minfo ("%B ", m->ref); + minfo ("(%T)\n", m->name); + } +} + +static void lang_map_flags (flagword flag) { if (flag & SEC_ALLOC) @@ -6629,6 +6671,8 @@ lang_process (void) link_info.gc_sym_list = ldlang_undef_chain_list_head; ldemul_after_open (); + if (config.map_file != NULL) + lang_print_asneeded (); bfd_section_already_linked_table_free (); diff --git a/ld/ldlang.h b/ld/ldlang.h index c64ded0..7236c1c 100644 --- a/ld/ldlang.h +++ b/ld/ldlang.h @@ -487,6 +487,14 @@ struct orphan_save lang_output_section_statement_type **os_tail; }; +struct asneeded_minfo +{ + struct asneeded_minfo *next; + const char *soname; + bfd *ref; + const char *name; +}; + extern struct lang_phdr *lang_phdr_list; extern struct lang_nocrossrefs *nocrossref_list; extern const char *output_target; @@ -505,6 +513,7 @@ extern lang_statement_list_type file_chain; extern lang_statement_list_type input_file_chain; extern int lang_statement_iteration; +extern struct asneeded_minfo **asneeded_list_tail; extern void lang_init (void); diff --git a/ld/ldmain.c b/ld/ldmain.c index 019df71..00f79ec 100644 --- a/ld/ldmain.c +++ b/ld/ldmain.c @@ -841,7 +841,8 @@ add_archive_element (struct bfd_link_info *info, { char buf[100]; - sprintf (buf, _("Archive member included because of file (symbol)\n\n")); + sprintf (buf, _("Archive member included " + "to satisfy reference by file (symbol)\n\n")); minfo ("%s", buf); header_printed = TRUE; } diff --git a/ld/ldmisc.c b/ld/ldmisc.c index 1b69ab1..cddcb18 100644 --- a/ld/ldmisc.c +++ b/ld/ldmisc.c @@ -484,7 +484,22 @@ minfo (const char *fmt, ...) va_list arg; va_start (arg, fmt); - vfinfo (config.map_file, fmt, arg, FALSE); + if (fmt[0] == '%' && fmt[1] == '!' && fmt[2] == 0) + { + /* Stash info about --as-needed shared libraries. Print + later so they don't appear intermingled with archive + library info. */ + struct asneeded_minfo *m = xmalloc (sizeof *m); + + m->next = NULL; + m->soname = va_arg (arg, const char *); + m->ref = va_arg (arg, bfd *); + m->name = va_arg (arg, const char *); + *asneeded_list_tail = m; + asneeded_list_tail = &m->next; + } + else + vfinfo (config.map_file, fmt, arg, FALSE); va_end (arg); } } |