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Display the reference causing a shared library to be needed

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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.
This commit is contained in:
Alan Modra
2014-01-22 16:05:12 +10:30
parent cda796e168
commit 16e4ecc0db
7 changed files with 89 additions and 2 deletions
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17
ld/ldmisc.c
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@@ -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);
}
}