* 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.
From-SVN: r67359
+2003-06-03 Jakub Jelinek <jakub@redhat.com>
+
+ * 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.
+
2003-06-03 Jakub Jelinek <jakub@redhat.com>
* builtins.c (expand_builtin_memcpy): Remove endp argument and endp
/* Define if your linker supports --eh-frame-hdr option. */
#undef HAVE_LD_EH_FRAME_HDR
+/* Define if your linker supports -pie option. */
+#undef HAVE_LD_PIE
+
/* Define if your MIPS libgloss linker scripts consistently include STARTUP directives. */
#undef HAVE_MIPS_LIBGLOSS_STARTUP_DIRECTIVES
before entering `main'. */
#undef STARTFILE_SPEC
+#ifdef HAVE_LD_PIE
#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:crtbeginS.o%s}%{!shared:crtbegin.o%s}}"
+ "%{!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|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 ELF. Here we tack on the
magical crtend.o file which provides part of the support for
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
"%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s} \
- %{shared:crtendS.o%s}%{!shared:crtend.o%s} crtn.o%s"
+ %{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
/* We support #pragma. */
#define HANDLE_SYSV_PRAGMA 1
#define DEFAULT_SIGNED_CHAR 0
#undef SUBTARGET_CPP_SPEC
-#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__}"
+#define SUBTARGET_CPP_SPEC "%{posix:-D_POSIX_SOURCE} %{fPIC|fPIE:-D__PIC__ -D__pic__} %{fpic|fpie:-D__PIC__ -D__pic__}"
#undef SIZE_TYPE
#define SIZE_TYPE "unsigned int"
#undef SUBTARGET_EXTRA_ASM_SPEC
#define SUBTARGET_EXTRA_ASM_SPEC \
- "-matpcs %{fpic:-k} %{fPIC:-k}"
+ "-matpcs %{fpic|fpie:-k} %{fPIC|fPIE:-k}"
/* Default floating point model is soft-VFP.
FIXME: -mhard-float currently implies FPA. */
binutils can't. */
#ifndef ASM_SPEC
#define ASM_SPEC "\
-%{fpic: -k} %{fPIC: -k} \
+%{fpic|fpie: -k} %{fPIC|fPIE: -k} \
%{mbig-endian:-EB} \
%{mcpu=*:-mcpu=%*} \
%{march=*:-march=%*} \
#define CRIS_ASM_SUBTARGET_SPEC \
"--em=criself\
%{!fleading-underscore:--no-underscore}\
- %{fPIC|fpic: --pic}"
+ %{fPIC|fpic|fPIE|fpie: --pic}"
/* Provide a legacy -mlinux option. */
#undef CRIS_SUBTARGET_SWITCHES
#define FBSD_CPP_SPEC " \
%(cpp_cpu) \
- %{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} \
+ %{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} \
%{posix:-D_POSIX_SOURCE}"
/* Provide a STARTFILE_SPEC appropriate for FreeBSD. Here we add
%{mmedia} %{mno-media} \
%{mmuladd} %{mno-muladd} \
%{mpack} %{mno-pack} \
- %{fpic: -mpic} %{fPIC: -mPIC} %{mlibrary-pic}}"
+ %{fpic|fpie: -mpic} %{fPIC|fPIE: -mPIC} %{mlibrary-pic}}"
/* Another C string constant used much like `LINK_SPEC'. The difference
between the two is that `STARTFILE_SPEC' is used at the very beginning of
CC1_SPEC is used for both cc1 and cc1plus. */
#undef CC1_SPEC
-#define CC1_SPEC "%{!no-fpic:%{!fPIC:-fpic}} %{!Wmultichar: -Wno-multichar} %(cc1_cpu) %{profile:-p}"
+#define CC1_SPEC "%{!no-fpic:%{!fno-pic:%{!fno-pie:%{!fpie:%{!fPIC:%{!fPIE:-fpic}}}}}} %{!Wmultichar: -Wno-multichar} %(cc1_cpu) %{profile:-p}"
#undef CC1PLUS_SPEC
#define CC1PLUS_SPEC "%{!Wctor-dtor-privacy:-Wno-ctor-dtor-privacy}"
} while (0)
#define AS_NEEDS_DASH_FOR_PIPED_INPUT
-#define ASM_SPEC "%{fpic:-k} %{fPIC:-k}"
+#define ASM_SPEC "%{fpic|fpie|fPIC|fPIE:-k}"
#define LINK_SPEC \
"%{p:%e`-p' not supported; use `-pg' and gprof(1)} \
%{shared:-Bshareable} \
%{!m32:%{!dynamic-linker:-dynamic-linker /lib64/ld-linux-x86-64.so.2}}} \
%{static:-static}}"
-#undef STARTFILE_SPEC
-#define STARTFILE_SPEC \
- "%{!shared: \
- %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
- %{!p:%{profile:gcrt1.o%s} %{!profile:crt1.o%s}}}} \
- crti.o%s %{static:crtbeginT.o%s} \
- %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"
-
-#undef ENDFILE_SPEC
-#define ENDFILE_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
-
#define MULTILIB_DEFAULTS { "m64" }
/* Do code reading to identify a signal frame, and set the frame
/* Need to override linux.h STARTFILE_SPEC, since it has crtbeginT.o in. */
#undef STARTFILE_SPEC
+#ifdef HAVE_LD_PIE
#define STARTFILE_SPEC \
- "%{!shared: \
- %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} \
- %{!p:%{profile:gcrt1.o%s} \
- %{!profile:crt1.o%s}}}} \
- crti.o%s %{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
+ "%{!shared: %{pg|p|profile:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}}\
+ crti.o%s %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+#else
+#define STARTFILE_SPEC \
+ "%{!shared: %{pg|p|profile:gcrt1.o%s;:crt1.o%s}}\
+ crti.o%s %{shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
+#endif
/* Similar to standard Linux, but adding -ffast-math support. */
#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"
/* Define this for shared library support because it isn't in the main
linux.h file. */
%{!p:%{profile:gcrt1.o%s} \
%{!profile: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|profile: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:%{profile:gcrt1.o%s} \
- %{!profile:crt1.o%s}}}} \
- crti.o%s %{static:crtbeginT.o%s}\
- %{!static:%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}}"
+ "%{!shared: %{pg|p|profile: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
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
- "%{!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. */
#ifndef CC1_SPEC
#undef CPP_SPEC
#if TARGET_DEFAULT & MASK_68881
#define CPP_SPEC \
- "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{!msoft-float:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+ "%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} %{!msoft-float:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
#else
#define CPP_SPEC \
- "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{m68881:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
+ "%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} %{m68881:-D__HAVE_68881__} %{posix:-D_POSIX_SOURCE} %{pthread:-D_REENTRANT}"
#endif
/* We override the ASM_SPEC from svr4.h because we must pass -m68040 down
#define ASM_SPEC \
"%(asm_default_spec) \
%{m68010} %{m68020} %{m68030} %{m68040} %{m68060} \
- %{fpic:-k} %{fPIC:-k -K}"
+ %{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
#define AS_NEEDS_DASH_FOR_PIPED_INPUT
"%{!msoft-float:-D__HAVE_68881__ -D__HAVE_FPU__} %(netbsd_cpp_spec)"
#undef ASM_SPEC
-#define ASM_SPEC "%{m68030} %{m68040} %{m68060} %{fpic:-k} %{fPIC:-k -K}"
+#define ASM_SPEC "%{m68030} %{m68040} %{m68060} %{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
#define AS_NEEDS_DASH_FOR_PIPED_INPUT
/* m68k as needs to know about the processor subtype. */
#undef ASM_SPEC
-#define ASM_SPEC "%{m68030} %{m68040} %{m68060} %{fpic:-k} %{fPIC:-k -K}"
+#define ASM_SPEC "%{m68030} %{m68040} %{m68060} %{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
#define AS_NEEDS_DASH_FOR_PIPED_INPUT
#undef SUBTARGET_CPP_SPEC
#define SUBTARGET_CPP_SPEC "\
%{fno-PIC:-U__PIC__ -U__pic__} %{fno-pic:-U__PIC__ -U__pic__} \
-%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} \
+%{fPIC|fPIE|fpic|fpie:-D__PIC__ -D__pic__} \
%{pthread:-D_REENTRANT}"
/* From iris5.h */
/* Definitions needed for OpenBSD, to avoid picking mips 'defaults'. */
/* GAS must know this. */
-#define SUBTARGET_ASM_SPEC "%{fPIC:-KPIC}"
+#define SUBTARGET_ASM_SPEC "%{fPIC|fPIE:-KPIC}"
#define AS_NEEDS_DASH_FOR_PIPED_INPUT
with the options for generating PIC code. */
#undef ASM_SPEC
-#define ASM_SPEC "%{fpic:-k} %{fPIC:-k -K}"
+#define ASM_SPEC "%{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
#define AS_NEEDS_DASH_FOR_PIPED_INPUT
still uses a special flavor of gas that needs to be told when generating
pic code. */
#undef ASM_SPEC
-#define ASM_SPEC "%{fpic:-k} %{fPIC:-k -K}"
+#define ASM_SPEC "%{fpic|fpie:-k} %{fPIC|fPIE:-k -K}"
#endif
/* Since we use gas, stdin -> - is a good idea. */
while (0)
#undef CPP_SPEC
-#define CPP_SPEC "%{fPIC:-D__PIC__ -D__pic__} %{fpic:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE}"
+#define CPP_SPEC "%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} %{posix:-D_POSIX_SOURCE}"
#undef LIB_SPEC
#define LIB_SPEC \
#endif
#undef STARTFILE_LINUX_SPEC
+#ifdef HAVE_LD_PIE
#define STARTFILE_LINUX_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;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_LINUX_SPEC "\
+%{!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
#undef ENDFILE_LINUX_SPEC
#define ENDFILE_LINUX_SPEC "\
-%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s"
+%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s"
#undef TOC_SECTION_ASM_OP
#define TOC_SECTION_ASM_OP "\t.section\t\".toc\",\"aw\""
#define ASM_SPEC "%(asm_cpu) \
%{.s: %{mregnames} %{mno-regnames}} %{.S: %{mregnames} %{mno-regnames}} \
%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
-%{mrelocatable} %{mrelocatable-lib} %{fpic:-K PIC} %{fPIC:-K PIC} \
+%{mrelocatable} %{mrelocatable-lib} %{fpic|fpie|fPIC|fPIE:-K PIC} \
%{memb|msdata|msdata=eabi: -memb} \
%{mlittle|mlittle-endian:-mlittle; \
mbig|mbig-endian :-mbig; \
#define CPP_SYSV_SPEC \
"%{mrelocatable*: -D_RELOCATABLE} \
-%{fpic: -D__PIC__=1 -D__pic__=1} \
-%{!fpic: %{fPIC: -D__PIC__=2 -D__pic__=2}}"
+%{fpic|fpie: -D__PIC__=1 -D__pic__=1} \
+%{!fpic: %{fPIC|fPIE: -D__PIC__=2 -D__pic__=2}}"
/* Override rs6000.h definition. */
#undef CPP_SPEC
%{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
%{mnewlib: ecrti.o%s} %{!mnewlib: crti.o%s} \
%{!shared:crtbegin.o%s} %{shared:crtbeginS.o%s}"
+#elif defined HAVE_LD_PIE
+#define STARTFILE_LINUX_SPEC "\
+%{!shared: %{pg|p:gcrt1.o%s;pie:Scrt1.o%s;:crt1.o%s}} \
+%{mnewlib:ecrti.o%s;:crti.o%s} \
+%{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
#else
#define STARTFILE_LINUX_SPEC "\
-%{!shared: %{pg:gcrt1.o%s} %{!pg:%{p:gcrt1.o%s} %{!p:crt1.o%s}}} \
-%{mnewlib: ecrti.o%s} %{!mnewlib: 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}} \
+%{mnewlib:ecrti.o%s;:crti.o%s} \
+%{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbegin.o%s}"
#endif
#define ENDFILE_LINUX_SPEC "%{!shared:crtend.o%s} %{shared:crtendS.o%s} \
t860: -DCPU=PPC860 -D_SOFT_FLOAT ; \
: -DCPU=PPC604} \
%{!msoft-float:-D__hardfp} \
- %{fpic: -D__PIC__=1 -D__pic__=1 ; \
- fPIC: -D__PIC__=2 -D__pic__=2 } \
+ %{fpic|fpie: -D__PIC__=1 -D__pic__=1 ; \
+ fPIC|fPIE: -D__PIC__=2 -D__pic__=2 } \
%(cpp_cpu)"
#define CC1_SPEC \
#undef ASM_SPEC
#define ASM_SPEC "\
%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Wa,*:%*} -s \
-%{fpic:-K PIC} %{fPIC:-K PIC} \
+%{fpic|fpie|fPIC|fPIE:-K PIC} \
%(asm_cpu) \
"
"%{!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
#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
#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
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
#undef STARTFILE_SPEC
+#ifdef HAVE_LD_PIE
#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;pie:Scrt1.o%s;:crt1.o%s}}\
+ crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbeginS.o%s}"
+#else
+#define STARTFILE_SPEC \
+ "%{!shared:%{pg|p:gcrt1.o%s;:crt1.o%s}}\
+ crti.o%s %{static:crtbeginT.o%s;shared|pie:crtbeginS.o%s;:crtbeginS.o%s}"
+#endif
/* Provide a ENDFILE_SPEC appropriate for GNU/Linux. Here we tack on
the GNU/Linux magical crtend.o file (see crtstuff.c) which
#undef ENDFILE_SPEC
#define ENDFILE_SPEC \
- "%{!shared:crtend.o%s} %{shared:crtendS.o%s} crtn.o%s\
+ "%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s\
%{ffast-math|funsafe-math-optimizations:crtfastmath.o%s}"
/* The GNU C++ standard library requires that these macros be defined. */
#undef CPP_SUBTARGET_SPEC
#define CPP_SUBTARGET_SPEC "\
-%{fPIC:-D__PIC__ -D__pic__} \
-%{fpic:-D__PIC__ -D__pic__} \
+%{fPIC|fpic|fPIE|fpie:-D__PIC__ -D__pic__} \
%{posix:-D_POSIX_SOURCE} \
%{pthread:-D_REENTRANT} \
"
%{T} \
%{Ym,*} \
%{Wa,*:%*} \
--s %{fpic:-K PIC} %{fPIC:-K PIC} \
+-s %{fpic|fPIC|fpie|fPIE:-K PIC} \
%{mlittle-endian:-EL} \
%(asm_cpu) %(asm_arch) %(asm_relax)"
#define USER_LABEL_PREFIX ""
#undef ASM_SPEC
-#define ASM_SPEC "%{fpic:-K PIC} %{fPIC:-K PIC} %{V} %{v:%{!V:-V}} \
+#define ASM_SPEC "%{fpic|fPIC|fpie|fPIE:-K PIC} %{V} %{v:%{!V:-V}} \
%{mlittle-endian:-EL} \
%(asm_cpu) %(asm_arch) %(asm_relax)"
#undef ASM_SPEC
#define ASM_SPEC "\
-%{v:-V} -s %{fpic:-K PIC} %{fPIC:-K PIC} \
+%{v:-V} -s %{fpic|fPIC|fpie|fPIE:-K PIC} \
%{mlittle-endian:-EL} \
%(asm_cpu) %(asm_arch) \
"
#undef ASM_SPEC
#define ASM_SPEC "\
-%{v:-V} -s %{fpic:-K PIC} %{fPIC:-K PIC} \
+%{v:-V} -s %{fpic|fPIC|fpie|fPIE:-K PIC} \
%{mlittle-endian:-EL} \
%(asm_cpu) %(asm_arch) \
"
/* Special flags to the Sun-4 assembler when using pipe for input. */
#define ASM_SPEC "\
-%{R} %{!pg:%{!p:%{fpic:-k} %{fPIC:-k}}} %{keep-local-as-symbols:-L} \
+%{R} %{!pg:%{!p:%{fpic|fPIC|fpie|fPIE:-k}}} %{keep-local-as-symbols:-L} \
%(asm_cpu) %(asm_relax)"
#define AS_NEEDS_DASH_FOR_PIPED_INPUT
#undef ASM_SPEC
#define ASM_SPEC \
"%{v:-V} %{Qy:} %{!Qn:-Qy} %{n} %{T} %{Ym,*} %{Yd,*} %{Wa,*:%*} \
- %{fpic:-K PIC} %{fPIC:-K PIC} %(asm_cpu)"
+ %{fpic|fPIC|fpie|fPIE:-K PIC} %(asm_cpu)"
/* Define the names of various pseudo-op used by the SPARC/svr4 assembler.
Note that many of these are different from the typical pseudo-ops used
fi
echo "$ac_t""$gcc_cv_ld_eh_frame_hdr" 1>&6
+echo $ac_n "checking linker position independent executable support""... $ac_c" 1>&6
+echo "configure:8843: checking linker position independent executable support" >&5
+gcc_cv_ld_pie=no
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
+ gcc_cv_ld_pie=yes
+ fi
+elif test x$gcc_cv_ld != x; then
+ # Check if linker supports -pie option
+ if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
+ gcc_cv_ld_pie=yes
+ fi
+fi
+if test x"$gcc_cv_ld_pie" = xyes; then
+ cat >> confdefs.h <<\EOF
+#define HAVE_LD_PIE 1
+EOF
+
+fi
+echo "$ac_t""$gcc_cv_ld_pie" 1>&6
+
# Miscellaneous target-specific checks.
case "$target" in
mips*-*-*)
echo $ac_n "checking whether libgloss uses STARTUP directives consistently""... $ac_c" 1>&6
-echo "configure:8846: checking whether libgloss uses STARTUP directives consistently" >&5
+echo "configure:8867: checking whether libgloss uses STARTUP directives consistently" >&5
gcc_cv_mips_libgloss_startup=no
gcc_cv_libgloss_srcdir=`echo $srcdir | sed -e 's,/gcc$,,'`/libgloss
if test "x$exec_prefix" = xNONE; then
echo "$ac_t""$gcc_cv_mips_libgloss_startup" 1>&6
echo $ac_n "checking whether the assembler has explicit relocation support""... $ac_c" 1>&6
-echo "configure:8874: checking whether the assembler has explicit relocation support" >&5
+echo "configure:8895: checking whether the assembler has explicit relocation support" >&5
if test x$gcc_cv_mips_explicit_relocs = x; then
gcc_cv_mips_explicit_relocs=no
if test x$gcc_cv_as != x; then
echo $ac_n "checking whether to enable maintainer-specific portions of Makefiles""... $ac_c" 1>&6
-echo "configure:9069: checking whether to enable maintainer-specific portions of Makefiles" >&5
+echo "configure:9090: checking whether to enable maintainer-specific portions of Makefiles" >&5
# Check whether --enable-maintainer-mode or --disable-maintainer-mode was given.
if test "${enable_maintainer_mode+set}" = set; then
enableval="$enable_maintainer_mode"
fi
AC_MSG_RESULT($gcc_cv_ld_eh_frame_hdr)
+AC_MSG_CHECKING(linker position independent executable support)
+gcc_cv_ld_pie=no
+if test $in_tree_ld = yes ; then
+ if test "$gcc_cv_gld_major_version" -eq 2 -a "$gcc_cv_gld_minor_version" -ge 15 -o "$gcc_cv_gld_major_version" -gt 2 && grep 'EMUL = elf' ../ld/Makefile > /dev/null; then
+ gcc_cv_ld_pie=yes
+ fi
+elif test x$gcc_cv_ld != x; then
+ # Check if linker supports -pie option
+ if $gcc_cv_ld --help 2>/dev/null | grep -- -pie > /dev/null; then
+ gcc_cv_ld_pie=yes
+ fi
+fi
+if test x"$gcc_cv_ld_pie" = xyes; then
+ AC_DEFINE(HAVE_LD_PIE, 1,
+[Define if your linker supports -pie option.])
+fi
+AC_MSG_RESULT($gcc_cv_ld_pie)
+
# Miscellaneous target-specific checks.
case "$target" in
mips*-*-*)
@item Linker Options
@xref{Link Options,,Options for Linking}.
@gccoptlist{@var{object-file-name} -l@var{library} @gol
--nostartfiles -nodefaultlibs -nostdlib @gol
+-nostartfiles -nodefaultlibs -nostdlib -pie @gol
-s -static -static-libgcc -shared -shared-libgcc -symbolic @gol
-Wl,@var{option} -Xlinker @var{option} @gol
-u @var{symbol}}
-fasynchronous-unwind-tables @gol
-finhibit-size-directive -finstrument-functions @gol
-fno-common -fno-ident -fno-gnu-linker @gol
--fpcc-struct-return -fpic -fPIC @gol
+-fpcc-struct-return -fpic -fPIC -fpie -fPIE @gol
-freg-struct-return -fshared-data -fshort-enums @gol
-fshort-double -fshort-wchar @gol
-fverbose-asm -fpack-struct -fstack-check @gol
constructors will be called; @pxref{Collect2,,@code{collect2}, gccint,
GNU Compiler Collection (GCC) Internals}.)
+@item -pie
+@opindex pie
+Produce a position independent executable on targets which support it.
+For predictable results, you must also specify the same set of options
+that were used to generate code (@option{-fpie}, @option{-fPIE},
+or model suboptions) when you specify this option.
+
@item -s
@opindex s
Remove all symbol table and relocation information from the executable.
Position-independent code requires special support, and therefore works
only on certain machines.
+@item -fpie
+@itemx -fPIE
+@opindex fpie
+@opindex fPIE
+These options are similar to @option{-fpic} and @option{-fPIC}, but
+generated position independent code can be only linked into executables.
+Usually these options are used when @option{-pie} GCC option will be
+used during linking.
+
@item -ffixed-@var{reg}
@opindex ffixed
Treat the register named @var{reg} as a fixed register; generated code
extern int flag_pic;
+/* Nonzero if we are compiling position independent code for executable.
+ 1 vs 2 for a target-dependent "small" or "large" mode. */
+
+extern int flag_pie;
+
+/* Nonzero if we are compiling code for a shared library, zero for
+ executable. */
+
+extern int flag_shlib;
+
/* Nonzero means generate extra code for exception handling and enable
exception handling. */
#define LINK_GCC_C_SEQUENCE_SPEC "%G %L %G"
#endif
+#ifndef LINK_PIE_SPEC
+#ifdef HAVE_LD_PIE
+#define LINK_PIE_SPEC "%{pie:-pie} "
+#else
+#define LINK_PIE_SPEC "%{pie:} "
+#endif
+#endif
+
/* -u* was put back because both BSD and SysV seem to support it. */
/* %{static:} simply prevents an error message if the target machine
doesn't handle -static. */
#ifndef LINK_COMMAND_SPEC
#define LINK_COMMAND_SPEC "\
%{!fsyntax-only:%{!c:%{!M:%{!MM:%{!E:%{!S:\
- %(linker) %l %X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r} %{s} %{t}\
- %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
+ %(linker) %l " LINK_PIE_SPEC "%X %{o*} %{A} %{d} %{e*} %{m} %{N} %{n} %{r}\
+ %{s} %{t} %{u*} %{x} %{z} %{Z} %{!A:%{!nostdlib:%{!nostartfiles:%S}}}\
%{static:} %{L*} %(link_libgcc) %o %{fprofile-arcs:-lgcov}\
%{!nostdlib:%{!nodefaultlibs:%(link_gcc_c_sequence)}}\
%{!A:%{!nostdlib:%{!nostartfiles:%E}}} %{T*} }}}}}}"
{"--param", "--param", "a"},
{"--pedantic", "-pedantic", 0},
{"--pedantic-errors", "-pedantic-errors", 0},
+ {"--pie", "-pie", 0},
{"--pipe", "-pipe", 0},
{"--prefix", "-B", "a"},
{"--preprocess", "-E", 0},
int flag_pic;
+/* Nonzero if we are compiling position independent code for executable.
+ The value is 1 if we are doing "small" pic; value is 2 if we're doing
+ "large" pic. */
+
+int flag_pie;
+
+/* Nonzero if we are compiling code for a shared library, zero for
+ executable. */
+
+int flag_shlib;
+
/* Set to the default thread-local storage (tls) model to use. */
enum tls_model flag_tls_default = TLS_MODEL_GLOBAL_DYNAMIC;
{"pic", &flag_pic, 1,
N_("Generate position independent code, if possible") },
{"PIC", &flag_pic, 2, ""},
+ {"pie", &flag_pie, 1,
+ N_("Generate position independent code for executables, if possible") },
+ {"PIE", &flag_pie, 2, ""},
{"exceptions", &flag_exceptions, 1,
N_("Enable exception handling") },
{"unwind-tables", &flag_unwind_tables, 1,
}
}
+ if (flag_pie)
+ flag_pic = flag_pie;
+ if (flag_pic && !flag_pie)
+ flag_shlib = 1;
+
if (flag_no_inline == 2)
flag_no_inline = 0;
else
default_binds_local_p (exp)
tree exp;
{
- return default_binds_local_p_1 (exp, flag_pic);
+ return default_binds_local_p_1 (exp, flag_shlib);
}
bool
git://gcc.gnu.org / gcc.git / commitdiff