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[Bug libc/17841] Build failure if compiler defaults to PIE
- From: "cvs-commit at gcc dot gnu.org" <sourceware-bugzilla at sourceware dot org>
- To: glibc-bugs at sourceware dot org
- Date: Thu, 28 May 2015 13:10:58 +0000
- Subject: [Bug libc/17841] Build failure if compiler defaults to PIE
- Auto-submitted: auto-generated
- References: <bug-17841-131 at http dot sourceware dot org/bugzilla/>
https://sourceware.org/bugzilla/show_bug.cgi?id=17841
--- Comment #11 from cvs-commit at gcc dot gnu.org <cvs-commit at gcc dot gnu.org> ---
This is an automated email from the git hooks/post-receive script. It was
generated because a ref change was pushed to the repository containing
the project "GNU C Library master sources".
The branch, hjl/pr17841/master has been created
at ca1f728cbefd6955735087e45d80620113623b3b (commit)
- Log -----------------------------------------------------------------
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=ca1f728cbefd6955735087e45d80620113623b3b
commit ca1f728cbefd6955735087e45d80620113623b3b
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Mon Mar 2 14:53:11 2015 -0800
Compile archives with -fno-pie
When compiler defaults to PIE, we compile archives with -fno-pie. Since
archives won't be used with PIE, compile them with -fpie isn't necessary.
[BZ #17841]
* Makeconfig (no-pie-ccflag): New. Set to -fno-pie.
(pic-default): Don't define if $(no-pie-ccflag) is -fno-pie.
(test-object-suffix): New.
* Makerules (archive-objects): New. Set before including
extra-lib.mk.
($(archive-objects)): New. New rule to append $(no-pie-ccflag)
to CFLAGS.
* extra-lib.mk (archive-objects): New.
* crypt/Makefile ($(objpfx)md5test): Replace ".o" with
$(test-object-suffix).
($(objpfx)md5test-giant): Likewise.
($(objpfx)sha256test): Likewise.
($(objpfx)sha512test): Likewise.
* math/Makefile (LDFLAGS-atest-exp): New.
(LDFLAGS-atest-sincos): Likewise.
(LDFLAGS-atest-exp2): Likewise.
https://sourceware.org/git/gitweb.cgi?p=glibc.git;h=1ea33bb5517516d1d1005b953c92a071454e66d5
commit 1ea33bb5517516d1d1005b953c92a071454e66d5
Author: H.J. Lu <hjl.tools@gmail.com>
Date: Wed Jan 14 06:29:04 2015 -0800
Support compilers defaulting to PIE
To support building glibc with GCC 6 configured with --enable-default-pie,
which generates PIE by default, we need to build programs as PIE. But
elf/tst-dlopen-aout must not be built as PIE since it tests dlopen on
ET_EXEC file and PIE is ET_DYN.
[BZ #17841]
* Makeconfig (no-pie-ldflag): New.
(+link): Set to $(+link-pie) if default to PIE.
(+link-tests): Set to $(+link-pie-tests) if default to PIE.
* config.make.in (build-pie-default): New.
* configure.ac (libc_cv_pie_default): New. Set to yes if -fPIE
is default. AC_SUBST.
* configure: Regenerated.
* elf/Makefile (LDFLAGS-tst-dlopen-aout): New.
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