From 320fdefef139160c93089a19ba41a2fcc4121203 Mon Sep 17 00:00:00 2001 From: "H.J. Lu" Date: Wed, 2 Feb 2022 14:40:03 -0800 Subject: ld: Add a before_plugin_all_symbols_read hook Add a before_plugin_all_symbols_read hook to load symbol references from DT_NEEDED entries, included from --copy-dt-needed-entries, before reading plugin symbols to properly resolve plugin symbol references. bfd/ PR ld/28849 * elf-bfd.h (elf_link_hash_table): Add handling_dt_needed. * elflink.c (_bfd_elf_merge_symbol): Don't set non_ir_ref_dynamic before plugin 'all symbols read' hook is called. ld/ PR ld/28849 * ldelf.c (ldelf_handle_dt_needed): New function. (ldelf_before_plugin_all_symbols_read): Likewise. (ldelf_after_open): Call ldelf_handle_dt_needed. * ldelf.h (ldelf_before_plugin_all_symbols_read): New. * ldemul.c (ldemul_before_plugin_all_symbols_read): Likewise. * ldemul.h (ldemul_before_plugin_all_symbols_read): Likewise. (ld_emulation_xfer_struct): Add before_plugin_all_symbols_read. * ldlang.c (lang_process): Call ldemul_before_plugin_all_symbols_read before calling plugin_call_all_symbols_read. * emultempl/elf.em (gld${EMULATION_NAME}_before_plugin_all_symbols_read): New. (LDEMUL_BEFORE_PLUGIN_ALL_SYMBOLS_READ): New. * emultempl/emulation.em (ld_${EMULATION_NAME}_emulation): Initialize the before_plugin_all_symbols_read field. * testsuite/ld-plugin/lto.exp: Run PR ld/28849 tests. * testsuite/ld-plugin/pr28849.d: New file. * testsuite/ld-plugin/pr28849a.c: Likewise. * testsuite/ld-plugin/pr28849b.c: Likewise. --- ld/ldemul.c | 7 +++++++ 1 file changed, 7 insertions(+) (limited to 'ld/ldemul.c') diff --git a/ld/ldemul.c b/ld/ldemul.c index 85c00de..4c8cad8 100644 --- a/ld/ldemul.c +++ b/ld/ldemul.c @@ -60,6 +60,13 @@ ldemul_before_parse (void) } void +ldemul_before_plugin_all_symbols_read (void) +{ + if (ld_emulation->before_plugin_all_symbols_read) + ld_emulation->before_plugin_all_symbols_read (); +} + +void ldemul_after_open (void) { ld_emulation->after_open (); -- cgit v1.1