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ld: Properly override the IR definition

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We change the previous definition in the IR object to undefweak only
after all LTO symbols have been read.

include/

	PR ld/26262
	PR ld/26267
	* bfdlink.h (bfd_link_info): Add lto_all_symbols_read.

ld/

	PR ld/26262
	PR ld/26267
	* ldlang.c (lang_process): Set lto_all_symbols_read after all
	LTO IR symbols have been read.
	* plugin.c (plugin_notice): Override the IR definition only if
	all LTO IR symbols have been read or the new definition is
	non-weak and the the IR definition is weak
	* testsuite/ld-plugin/lto.exp: Run PR ld/26262 and ld/26267
	tests.
	* testsuite/ld-plugin/pr26262a.c: New file.
	* testsuite/ld-plugin/pr26262b.c: Likewise.
	* testsuite/ld-plugin/pr26262c.c: Likewise.
	* testsuite/ld-plugin/pr26267.err: Likewise.
	* testsuite/ld-plugin/pr26267a.c: Likewise.
	* testsuite/ld-plugin/pr26267b.c: Likewise.
	* testsuite/ld-plugin/pr26267c.c: Likewise.
This commit is contained in:
H.J. Lu
2020-07-22 03:49:07 -07:00
parent 1ad2776d3d
commit 0e6a3f07f5
13 changed files with 167 additions and 6 deletions
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1
ld/ldlang.c
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@ -7886,6 +7886,7 @@ lang_process (void)
if (plugin_call_all_symbols_read ())
einfo (_("%F%P: %s: plugin reported error after all symbols read\n"),
plugin_error_plugin ());
link_info.lto_all_symbols_read = TRUE;
/* Open any newly added files, updating the file chains. */
plugin_undefs = link_info.hash->undefs_tail;
open_input_bfds (*added.tail, OPEN_BFD_NORMAL);