Add --enable-default-pie option to GCC configurehjl/pie/gcc-4_9-branch

Add --enable-default-pie option to configure GCC to generate PIE by
default.

gcc/

2015-03-06  Magnus Granberg  <zorry@gentoo.org>
	    H.J. Lu  <hongjiu.lu@intel.com>

	* Makefile.in (COMPILER): Add @NO_PIE_CFLAGS@.
	(BUILD_CFLAGS): Likewise.
	(BUILD_CXXFLAGS): Likewise.
	(LINKER): Add @NO_PIE_FLAG@.
	(BUILD_LDFLAGS): Likewise.
	(libgcc.mvars): Set NO_PIE_CFLAGS to -fno-PIE for
	--enable-default-pie.
	* common.opt (fPIE): Initialize to -1.
	(fpie): Likewise.
	(no-pie): New option.
	(pie): Replace "Negative(shared)" with "Negative(no-pie)".
	* configure.ac: Add --enable-default-pie.
	(NO_PIE_CFLAGS): New.  Check if -fno-PIE works.  AC_SUBST.
	(NO_PIE_FLAG): New.  Check if -no-pie works.  AC_SUBST.
	* defaults.h (DEFAULT_FLAG_PIE): New.  Default PIE to -fPIE.
	* gcc.c (NO_PIE_SPEC): New.
	(PIE_SPEC): Likewise.
	(LD_PIE_SPEC): Likewise.
	(LINK_PIE_SPEC): Handle -no-pie.  Use PIE_SPEC and LD_PIE_SPEC.
	* opts.c (DEFAULT_FLAG_PIE): New.  Set to 0 if ENABLE_DEFAULT_PIE
	is undefined.
	(finish_options): Update opts->x_flag_pie if it is -1.
	* config/gnu-user.h (FVTABLE_VERIFY_SPEC): New.
	(GNU_USER_TARGET_STARTFILE_SPEC): Use FVTABLE_VERIFY_SPEC.  Use
	PIE_SPEC and NO_PIE_SPEC if ENABLE_DEFAULT_PIE is defined.
	(GNU_USER_TARGET_STARTFILE_SPEC): Use FVTABLE_VERIFY_SPEC.
	* doc/install.texi: Document --enable-default-pie.
	* doc/invoke.texi: Document -no-pie.
	* config.in: Regenerated.
	* configure: Likewise.

gcc/ada/

2015-03-06  H.J. Lu  <hongjiu.lu@intel.com>

	* gcc-interface/Makefile.in (TOOLS_LIBS): Add @NO_PIE_FLAG@.

libgcc/

2015-03-06  H.J. Lu  <hongjiu.lu@intel.com>

	* Makefile.in (CRTSTUFF_CFLAGS): Add $(NO_PIE_CFLAGS).

0 files changed, 0 insertions, 0 deletions