* configure.in (HAVE_LD_PIE): Check for ld -pie.

	* config.in: Rebuilt.
	* configure: Rebuilt.
	* toplev.c (flag_pie, flag_shlib): New variables.
	(f_options): Add -fpie and -fPIE.
	(parse_options_and_default_flags): Set flag_pic if -fpie/-fPIE.
	Set flag_shlib if flag_pic and not -fpie/-fPIE.
	* flags.h (flag_pic, flag_shlib): Add.
	* varasm.c (default_binds_local_p): Use flag_shlib instead of
	flag_pic.
	* gcc.c (LINK_PIE_SPEC): Define.
	(LINK_COMMAND_SPEC): Use LINK_PIE_SPEC.
	(option_map): Add --pie -> -pie mapping.
	* config/sol2.h (ASM_SPEC): Handle -fpie the same way as -fpic
	and -fPIE the same way as -fPIC.
	* config/openbsd.h (ASM_SPEC): Likewise.
	* config/frv/frv.h (ASM_SPEC): Likewise.
	* config/arm/linux-gas.h (SUBTARGET_CPP_SPEC): Likewise.
	* config/arm/semi.h (ASM_SPEC): Likewise.
	* config/arm/netbsd-elf.h (SUBTARGET_EXTRA_ASM_SPEC): Likewise.
	* config/freebsd-spec.h (FBSD_CPP_SPEC): Likewise.
	* config/i386/beos-elf.h (CC1_SPEC): Likewise.
	* config/i386/freebsd-aout.h (ASM_SPEC): Likewise.
	* config/m68k/linux.h (CPP_SPEC): Likewise.
	* config/m68k/netbsd.h (ASM_SPEC): Likewise.
	* config/m68k/openbsd.h (ASM_SPEC): Likewise.
	* config/m68k/netbsd-elf.h (ASM_SPEC): Likewise.
	* config/mips/linux.h (SUBTARGET_CPP_SPEC): Likewise.
	* config/mips/openbsd.h (SUBTARGET_ASM_SPEC): Likewise.
	* config/pa/pa-linux.h (CPP_SPEC): Likewise.
	* config/netbsd-aout.h (ASM_SPEC): Likewise.
	* config/rs6000/sysv4.h (ASM_SPEC, CPP_SYSV_SPEC): Likewise.
	* config/rs6000/vxworks.h (CPP_SPEC): Likewise.
	* config/sparc/linux.h (CPP_SUBTARGET_SPEC, ASM_SPEC): Likewise.
	* config/sparc/linux64.h (CPP_SUBTARGET_SPEC, ASM_SPEC): Likewise.
	* config/sparc/sparc.h (ASM_SPEC): Likewise.
	* config/sparc/sp64-elf.h (ASM_SPEC): Likewise.
	* config/sparc/sysv4.h (ASM_SPEC): Likewise.
	* config/sparc/netbsd-elf.h (ASM_SPEC): Likewise.
	* config/sparc/openbsd64.h (ASM_SPEC): Likewise.
	* config/cris/linux.h (CRIS_ASM_SUBTARGET_SPEC): Likewise.
	* config/linux.h (STARTFILE_SPEC, ENDFILE_SPEC): Handle -pie.
	Simplify.
	* config/alpha/elf.h (STARTFILE_SPEC, ENDFILE_SPEC): Likewise.
	* config/i386/linux64.h (STARTFILE_SPEC, ENDFILE_SPEC): Likewise.
	* config/ia64/linux.h (STARTFILE_SPEC, ENDFILE_SPEC): Likewise.
	* config/rs6000/sysv4.h (STARTFILE_SPEC, ENDFILE_SPEC): Likewise.
	* config/rs6000/linux64.h (STARTFILE_SPEC, ENDFILE_SPEC): Likewise.
	* config/sparc/linux.h (STARTFILE_SPEC, ENDFILE_SPEC): Likewise.
	* config/sparc/linux64.h (STARTFILE_SPEC, ENDFILE_SPEC): Likewise.
	* doc/invoke.texi: Document -pie, -fpie and -fPIE options.


git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@67359 138bc75d-0d04-0410-961f-82ee72b054a4

1 files changed, 11 insertions, 9 deletions

diff --git a/gcc/config/sparc/linux.h b/gcc/config/sparc/linux.h
index 23f5892dd19..63ce3b95e68 100644
--- a/gcc/config/sparc/linux.h
+++ b/gcc/config/sparc/linux.h
@@ -57,12 +57,14 @@ Boston, MA 02111-1307, USA.  */
   "%{!shared: \
      %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
    crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
+#elif defined HAVE_LD_PIE
+#define STARTFILE_SPEC \
+  "%{!shared: %{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}}\
+   crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
 #else
 #define STARTFILE_SPEC \
-  "%{!shared: \
-     %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}}\
-   crti.o%s %{static:crtbeginT.o%s}\
-   %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"
+  "%{!shared: %{pg|p:gcrt1.o%s;:crt1.o%s}}\
+   crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
 #endif
 
 /* Provide a ENDFILE_SPEC appropriate for GNU/Linux.  Here we tack on
@@ -74,7 +76,7 @@ Boston, MA 02111-1307, USA.  */
 #undef  ENDFILE_SPEC
 #define ENDFILE_SPEC \
   "%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
-   %{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
+   %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
 
 /* This is for -profile to use -lc_p instead of -lc.  */
 #undef	CC1_SPEC
@@ -112,11 +114,11 @@ Boston, MA 02111-1307, USA.  */
 #undef CPP_SUBTARGET_SPEC
 #ifdef USE_GNULIBC_1
 #define CPP_SUBTARGET_SPEC \
-"%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
+"%{fPIC|fPIE|fpic|fpie:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
 %{mlong-double-128:-D__LONG_DOUBLE_128__}"
 #else
 #define CPP_SUBTARGET_SPEC \
-"%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
+"%{fPIC|fPIE|fpic|fpie:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE} \
 %{pthread:-D_REENTRANT} %{mlong-double-128:-D__LONG_DOUBLE_128__}"
 #endif
 
@@ -192,8 +194,8 @@ Boston, MA 02111-1307, USA.  */
    It's safe to pass -s always, even if -g is not used.  */
 #undef ASM_SPEC
 #define ASM_SPEC \
-  "%{V} %{v:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s %{fpic:-K PIC} \
-   %{fPIC:-K PIC} %(asm_cpu) %(asm_relax)"
+  "%{V} %{v:%{!V:-V}} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \
+   %{fpic|fPIC|fpie|fPIE:-K PIC} %(asm_cpu) %(asm_relax)"
 
 /* Same as sparc.h */
 #undef DBX_REGISTER_NUMBER