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Commit 7345b714 by H.J. Lu
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PR driver/81523: Make -static override -pie 

-static and -pie together behave differently depending on whether GCC is
configured with --enable-default-pie.  On x86, "-static -pie" fails to
create executable when --enable-default-pie isn't used, but creates a
static executable when --enable-default-pie is used.  This patch makes
-static completely override -pie to create a static executable, regardless
if --enable-default-pie is used to configure GCC.

gcc/

	PR driver/81523
	* gcc.c (NO_PIE_SPEC): Delete.
	(PIE_SPEC): Define as !no-pie/pie.  Move static|shared|r
	exclusion..
	(LINK_PIE_SPEC): ..to here.
	(LINK_COMMAND_SPEC): Support -no-pie.
	* config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Correct
	chain of crtbegin*.o selection, update for PIE_SPEC changes and
	format.
	(GNU_USER_TARGET_ENDFILE_SPEC): Similarly.
	* config/sol2.h (STARTFILE_CRTBEGIN_SPEC): Similarly.
	(ENDFILE_CRTEND_SPEC): Similarly.

gcc/testsuite/

	PR driver/81523
	* gcc.dg/pie-7.c: New test.
	* gcc.dg/pie-static-1.c: Likewise.
	* gcc.dg/pie-static-2.c: Likewise.

From-SVN: r250974
parent d5bf81b3
Showing with 81 additions and 23 deletions
gcc/ChangeLog
2017-08-08 Alan Modra <amodra@gmail.com>
H.J. Lu <hongjiu.lu@intel.com>
PR driver/81523
* gcc.c (NO_PIE_SPEC): Delete.
(PIE_SPEC): Define as !no-pie/pie. Move static|shared|r
exclusion..
(LINK_PIE_SPEC): ..to here.
(LINK_COMMAND_SPEC): Support -no-pie.
* config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Correct
chain of crtbegin*.o selection, update for PIE_SPEC changes and
format.
(GNU_USER_TARGET_ENDFILE_SPEC): Similarly.
* config/sol2.h (STARTFILE_CRTBEGIN_SPEC): Similarly.
(ENDFILE_CRTEND_SPEC): Similarly.
2017-08-08 Uros Bizjak <ubizjak@gmail.com>
PR target/81708
......
gcc/config/gnu-user.h
......@@ -50,19 +50,28 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
#if defined HAVE_LD_PIE
#define GNU_USER_TARGET_STARTFILE_SPEC \
"%{!shared: %{pg|p|profile:gcrt1.o%s;: \
%{" PIE_SPEC ":Scrt1.o%s} %{" NO_PIE_SPEC ":crt1.o%s}}} \
crti.o%s %{static:crtbeginT.o%s;: %{shared:crtbeginS.o%s} \
%{" PIE_SPEC ":crtbeginS.o%s} \
%{" NO_PIE_SPEC ":crtbegin.o%s}} \
"%{shared:; \
pg|p|profile:gcrt1.o%s; \
static:crt1.o%s; \
" PIE_SPEC ":Scrt1.o%s; \
:crt1.o%s} \
crti.o%s \
%{static:crtbeginT.o%s; \
shared|" PIE_SPEC ":crtbeginS.o%s; \
:crtbegin.o%s} \
%{fvtable-verify=none:%s; \
fvtable-verify=preinit:vtv_start_preinit.o%s; \
fvtable-verify=std:vtv_start.o%s} \
" CRTOFFLOADBEGIN
#else
#define GNU_USER_TARGET_STARTFILE_SPEC \
"%{!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} \
"%{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} \
%{fvtable-verify=none:%s; \
fvtable-verify=preinit:vtv_start_preinit.o%s; \
fvtable-verify=std:vtv_start.o%s} \
......@@ -82,15 +91,20 @@ see the files COPYING3 and COPYING.RUNTIME respectively. If not, see
"%{fvtable-verify=none:%s; \
fvtable-verify=preinit:vtv_end_preinit.o%s; \
fvtable-verify=std:vtv_end.o%s} \
%{shared:crtendS.o%s;: %{" PIE_SPEC ":crtendS.o%s} \
%{" NO_PIE_SPEC ":crtend.o%s}} crtn.o%s \
%{static:crtend.o%s; \
shared|" PIE_SPEC ":crtendS.o%s; \
:crtend.o%s} \
crtn.o%s \
" CRTOFFLOADEND
#else
#define GNU_USER_TARGET_ENDFILE_SPEC \
"%{fvtable-verify=none:%s; \
fvtable-verify=preinit:vtv_end_preinit.o%s; \
fvtable-verify=std:vtv_end.o%s} \
%{shared|pie:crtendS.o%s;:crtend.o%s} crtn.o%s \
%{static:crtend.o%s; \
shared|pie:crtendS.o%s; \
:crtend.o%s} \
crtn.o%s \
" CRTOFFLOADEND
#endif
#undef ENDFILE_SPEC
......
gcc/config/sol2.h
......@@ -174,9 +174,9 @@ along with GCC; see the file COPYING3. If not see
%{!ansi:values-Xa.o%s}"
#if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
#define STARTFILE_CRTBEGIN_SPEC "%{shared:crtbeginS.o%s} \
%{" PIE_SPEC ":crtbeginS.o%s} \
%{" NO_PIE_SPEC ":crtbegin.o%s}"
#define STARTFILE_CRTBEGIN_SPEC "%{static:crtbegin.o%s; \
shared|" PIE_SPEC ":crtbeginS.o%s; \
:crtbegin.o%s}"
#else
#define STARTFILE_CRTBEGIN_SPEC "crtbegin.o%s"
#endif
......@@ -224,9 +224,9 @@ along with GCC; see the file COPYING3. If not see
#endif
#if defined(HAVE_LD_PIE) && defined(HAVE_SOLARIS_CRTS)
#define ENDFILE_CRTEND_SPEC "%{shared:crtendS.o%s;: \
%{" PIE_SPEC ":crtendS.o%s} \
%{" NO_PIE_SPEC ":crtend.o%s}}"
#define ENDFILE_CRTEND_SPEC "%{static:crtend.o%s; \
shared|" PIE_SPEC ":crtendS.o%s; \
:crtend.o%s}"
#else
#define ENDFILE_CRTEND_SPEC "crtend.o%s"
#endif
......
gcc/gcc.c
......@@ -878,8 +878,7 @@ proper position among the other output files. */
#endif
#ifdef ENABLE_DEFAULT_PIE
#define NO_PIE_SPEC "no-pie|static"
#define PIE_SPEC NO_PIE_SPEC "|r|shared:;"
#define PIE_SPEC "!no-pie"
#define NO_FPIE1_SPEC "fno-pie"
#define FPIE1_SPEC NO_FPIE1_SPEC ":;"
#define NO_FPIE2_SPEC "fno-PIE"
......@@ -900,7 +899,6 @@ proper position among the other output files. */
#define FPIE_OR_FPIC_SPEC NO_FPIE_AND_FPIC_SPEC ":;"
#else
#define PIE_SPEC "pie"
#define NO_PIE_SPEC PIE_SPEC "|r|shared:;"
#define FPIE1_SPEC "fpie"
#define NO_FPIE1_SPEC FPIE1_SPEC ":;"
#define FPIE2_SPEC "fPIE"
......@@ -929,7 +927,7 @@ proper position among the other output files. */
#else
#define LD_PIE_SPEC ""
#endif
#define LINK_PIE_SPEC "%{no-pie:} " "%{" PIE_SPEC ":" LD_PIE_SPEC "} "
#define LINK_PIE_SPEC "%{static|shared|r:;" PIE_SPEC ":" LD_PIE_SPEC "} "
#endif
#ifndef LINK_BUILDID_SPEC
......@@ -1017,8 +1015,10 @@ proper position among the other output files. */
#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. */
/* %{static|no-pie:} simply prevents an error message:
1. If the target machine doesn't handle -static.
2. If PIE isn't enabled by default.
*/
/* We want %{T*} after %{L*} and %D so that it can be used to specify linker
scripts which exist in user specified directories, or in standard
directories. */
......@@ -1035,7 +1035,7 @@ proper position among the other output files. */
"%{fuse-ld=*:-fuse-ld=%*} " LINK_COMPRESS_DEBUG_SPEC \
"%X %{o*} %{e*} %{N} %{n} %{r}\
%{s} %{t} %{u*} %{z} %{Z} %{!nostdlib:%{!nostartfiles:%S}} \
%{static:} %{L*} %(mfwrap) %(link_libgcc) " \
%{static|no-pie:} %{L*} %(mfwrap) %(link_libgcc) " \
VTABLE_VERIFICATION_SPEC " " SANITIZER_EARLY_SPEC " %o " CHKP_SPEC " \
%{fopenacc|fopenmp|%:gt(%{ftree-parallelize-loops=*:%*} 1):\
%:include(libgomp.spec)%(link_gomp)}\
......
gcc/testsuite/ChangeLog
2017-08-08 H.J. Lu <hongjiu.lu@intel.com>
PR driver/81523
* gcc.dg/pie-7.c: New test.
* gcc.dg/pie-static-1.c: Likewise.
* gcc.dg/pie-static-2.c: Likewise.
2017-08-08 Uros Bizjak <ubizjak@gmail.com>
PR target/81708
......
gcc/testsuite/gcc.dg/pie-7.c 0 → 100644
/* { dg-do run { target pie } } */
/* { dg-options "-fno-pie -no-pie" } */
int main(void)
{
return 0;
}
gcc/testsuite/gcc.dg/pie-static-1.c 0 → 100644
/* { dg-do run { target pie } } */
/* { dg-options "-static -fpie -pie" } */
int main(void)
{
return 0;
}
gcc/testsuite/gcc.dg/pie-static-2.c 0 → 100644
/* { dg-do run { target pie } } */
/* { dg-options "-fpie -pie -static" } */
int main(void)
{
return 0;
}
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