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[Bug lto/67548] [5 Regression] LTO drops weak binding with "ld -r"
- From: "belagod at gcc dot gnu.org" <gcc-bugzilla at gcc dot gnu dot org>
- To: gcc-bugs at gcc dot gnu dot org
- Date: Wed, 16 Dec 2015 22:34:22 +0000
- Subject: [Bug lto/67548] [5 Regression] LTO drops weak binding with "ld -r"
- Auto-submitted: auto-generated
- References: <bug-67548-4 at http dot gcc dot gnu dot org/bugzilla/>
https://gcc.gnu.org/bugzilla/show_bug.cgi?id=67548
--- Comment #14 from Tejas Belagod <belagod at gcc dot gnu.org> ---
Author: belagod
Date: Wed Dec 16 22:33:51 2015
New Revision: 231724
URL: https://gcc.gnu.org/viewcvs?rev=231724&root=gcc&view=rev
Log:
Backport from Mainline
PR lto/67548
* lto-plugin.c (linker_output, linker_output_set): New statics.
(all_symbols_read_handler): Add -flinker-output option.
(onload): Record linker_output info.
* ipa-visibility.c (cgraph_externally_visible_p,
varpool_node::externally_visible_p): When doing incremental linking,
hidden symbols may be still used later.
(update_visibility_by_resolution_info): Do not drop weak during
incremental link.
(function_and_variable_visibility): Fix formating.
* flag-types.h (lto_linker_output): Declare.
* common.opt 9flag_incremental_link): New flag.
* lto-lang.c (lto_post_options): Process flag_lto_linker_output.
* lang.opt (lto_linker_output): New enum.
(flinker_output): New flag.
Added:
branches/ARM/embedded-5-branch/gcc/lto/ChangeLog.arm
branches/ARM/embedded-5-branch/lto-plugin/ChangeLog.arm
Modified:
branches/ARM/embedded-5-branch/gcc/ChangeLog.arm
branches/ARM/embedded-5-branch/gcc/common.opt
branches/ARM/embedded-5-branch/gcc/flag-types.h
branches/ARM/embedded-5-branch/gcc/ipa-visibility.c
branches/ARM/embedded-5-branch/gcc/lto/lang.opt
branches/ARM/embedded-5-branch/gcc/lto/lto-lang.c
branches/ARM/embedded-5-branch/lto-plugin/lto-plugin.c