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[Bug ld/21903] --no-define-common causes internal error in elf_link_conv
From: |
cvs-commit at gcc dot gnu.org |
Subject: |
[Bug ld/21903] --no-define-common causes internal error in elf_link_convert_common_type |
Date: |
Sun, 06 Aug 2017 15:38:54 +0000 |
https://sourceware.org/bugzilla/show_bug.cgi?id=21903
--- Comment #4 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot
gnu.org> ---
The master branch has been updated by H.J. Lu <address@hidden>:
https://sourceware.org/git/gitweb.cgi?p=binutils-gdb.git;h=a4819f54c0006554179631189131080be859eefb
commit a4819f54c0006554179631189131080be859eefb
Author: H.J. Lu <address@hidden>
Date: Sun Aug 6 08:18:53 2017 -0700
Treat common symbol as undefined for --no-define-common
When --no-define-common is used to build shared library, treat common
symbol as undefined so that common symbols that are referenced from a
shared library to be assigned addresses only in the main program. This
eliminates the unused duplicate space in the shared library, and also
prevents any possible confusion over resolving to the wrong duplicate
when there are many dynamic modules with specialized search paths for
runtime symbol resolution.
--no-define-common is only allowed when building a shared library.
bfd/
PR ld/21903:
* elflink.c (elf_link_add_object_symbols): Treat common symbol
as undefined for --no-define-common.
include/
PR ld/21903:
* bfdlink.h (bfd_link_info): Add inhibit_common_definition.
ld/
PR ld/21903:
* ld.h (command_line): Remove inhibit_common_definition.
* ldgram.y: Replace command_line.inhibit_common_definition with
link_info.inhibit_common_definition.
* ldlang.c (lang_common): Likewise.
* lexsup.c (parse_args): Likewise.
* ldmain.c (main): Only allow --no-define-common with -shared.
* testsuite/ld-elf/pr21903.s: New file.
* testsuite/ld-elf/pr21903a.d: Likewise.
* testsuite/ld-elf/pr21903b.d: Likewise.
* testsuite/ld-elf/pr21903c.d: Likewise.
* testsuite/ld-elf/pr21903d.d: Likewise.
* testsuite/ld-elf/pr21903e.d: Likewise.
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- [Bug ld/21903] New: --no-define-common causes internal error in elf_link_convert_common_type, matthijsvanduin at gmail dot com, 2017/08/04
- [Bug ld/21903] --no-define-common causes internal error in elf_link_convert_common_type, matthijsvanduin at gmail dot com, 2017/08/04
- [Bug ld/21903] --no-define-common causes internal error in elf_link_convert_common_type, hjl.tools at gmail dot com, 2017/08/04
- [Bug ld/21903] --no-define-common causes internal error in elf_link_convert_common_type, hjl.tools at gmail dot com, 2017/08/04
- [Bug ld/21903] --no-define-common causes internal error in elf_link_convert_common_type,
cvs-commit at gcc dot gnu.org <=
- [Bug ld/21903] --no-define-common causes internal error in elf_link_convert_common_type, hjl.tools at gmail dot com, 2017/08/06
- [Bug ld/21903] --no-define-common causes internal error in elf_link_convert_common_type, cvs-commit at gcc dot gnu.org, 2017/08/23