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authorH.J. Lu <hjl.tools@gmail.com>2016-05-12 16:50:34 -0700
committerH.J. Lu <hjl.tools@gmail.com>2016-05-12 16:50:52 -0700
commit3355cb3b643bd50aafae768e7cf990d4bec40fe1 (patch)
treec16b986fd942a0b25ab494d5635d97d5fdd5de62 /ld/plugin.c
parent8ddd5a6cd692ca8c4041d9fb64cbb4e0585d4aa1 (diff)
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Handle symbols defined/referenced only within IR
The plugin is called to claim symbols in an archive element from plugin_object_p. But those symbols aren't needed to create output. They are defined and referenced only within IR. get_symbols should return resolution based on IR symbol kinds. PR ld/20070 * Makefile.am (noinst_LTLIBRARIES): Add libldtestplug4.la. (libldtestplug4_la_SOURCES): New. (libldtestplug4_la_CFLAGS): Likewise. (libldtestplug4_la_LDFLAGS): Likewise. * Makefile.in: Regenerated. * plugin.c (get_symbols): Return resolution based on IR symbol kinds for symbols defined/referenced only within IR. * testplug4.c: New file. * ld/testsuite/ld-plugin/pr20070.d: Likewise. * ld/testsuite/ld-plugin/pr20070a.c: Likewise. * ld/testsuite/ld-plugin/pr20070b.c: Likewise. * testsuite/ld-plugin/plugin.exp (plugin4_name): New. (plugin4_path): Likewise. Add a test for ld/20070.
Diffstat (limited to 'ld/plugin.c')
-rw-r--r--ld/plugin.c19
1 files changed, 18 insertions, 1 deletions
diff --git a/ld/plugin.c b/ld/plugin.c
index bf66f52..a60ffca 100644
--- a/ld/plugin.c
+++ b/ld/plugin.c
@@ -674,7 +674,24 @@ get_symbols (const void *handle, int nsyms, struct ld_plugin_symbol *syms,
syms[n].name, FALSE, FALSE, TRUE);
if (!blhe)
{
- res = LDPR_UNKNOWN;
+ /* The plugin is called to claim symbols in an archive element
+ from plugin_object_p. But those symbols aren't needed to
+ create output. They are defined and referenced only within
+ IR. */
+ switch (syms[n].def)
+ {
+ default:
+ abort ();
+ case LDPK_UNDEF:
+ case LDPK_WEAKUNDEF:
+ res = LDPR_UNDEF;
+ break;
+ case LDPK_DEF:
+ case LDPK_WEAKDEF:
+ case LDPK_COMMON:
+ res = LDPR_PREVAILING_DEF_IRONLY;
+ break;
+ }
goto report_symbol;
}