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[RS6000] linux startfile/endfile 

These need to match the gnu-user.h definitions to support
--enable-default-pie.  Otherwise we end up linking the wrong startup
files when defaulting to PIE.

	PR target/81170
	PR target/81295
	* config/rs6000/sysv4.h (STARTFILE_LINUX_SPEC): Upgrade to
	match gnu-user.h startfile.
	(ENDFILE_LINUX_SPEC): Similarly.

From-SVN: r251403
This commit is contained in:
Alan Modra 2017-08-29 17:53:44 +09:30 committed by Alan Modra
parent 82cd399fbe
commit f3235b72ec
2 changed files with 34 additions and 17 deletions
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7
gcc/ChangeLog
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@ -1,6 +1,13 @@
2017-08-29 Alan Modra <amodra@gmail.com>
Apply from mainline
2017-08-12 Alan Modra <amodra@gmail.com>
PR target/81170
PR target/81295
* config/rs6000/sysv4.h (STARTFILE_LINUX_SPEC): Upgrade to
match gnu-user.h startfile.
(ENDFILE_LINUX_SPEC): Similarly.
2017-08-08 Alan Modra <amodra@gmail.com>
H.J. Lu <hongjiu.lu@intel.com>
PR target/81170

44
gcc/config/rs6000/sysv4.h
View File

@ -757,24 +757,34 @@ ENDIAN_SELECT(" -mbig", " -mlittle", DEFAULT_ASM_ENDIAN)
#define CRTOFFLOADEND ""
#endif
#ifdef HAVE_LD_PIE
#define STARTFILE_LINUX_SPEC "\
%{!shared: %{pg|p|profile: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} \
" CRTOFFLOADBEGIN
#else
#define STARTFILE_LINUX_SPEC "\
%{!shared: %{pg|p|profile: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} \
" CRTOFFLOADBEGIN
#endif
/* STARTFILE_LINUX_SPEC should be the same as GNU_USER_TARGET_STARTFILE_SPEC
but with the mnewlib ecrti.o%s selection substituted for crti.o%s. */
#define STARTFILE_LINUX_SPEC \
"%{shared:; \
pg|p|profile:gcrt1.o%s; \
static:crt1.o%s; \
" PIE_SPEC ":Scrt1.o%s; \
:crt1.o%s} \
%{mnewlib:ecrti.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
#define ENDFILE_LINUX_SPEC "\
%{shared|pie:crtendS.o%s;:crtend.o%s} \
%{mnewlib:ecrtn.o%s;:crtn.o%s} \
" CRTOFFLOADEND
/* ENDFILE_LINUX_SPEC should be the same as GNU_USER_TARGET_ENDFILE_SPEC
but with the mnewlib ecrtn.o%s selection substituted for crtn.o%s. */
#define ENDFILE_LINUX_SPEC \
"%{fvtable-verify=none:%s; \
fvtable-verify=preinit:vtv_end_preinit.o%s; \
fvtable-verify=std:vtv_end.o%s} \
%{static:crtend.o%s; \
shared|" PIE_SPEC ":crtendS.o%s; \
:crtend.o%s} \
%{mnewlib:ecrtn.o%s;:crtn.o%s} \
" CRTOFFLOADEND
#define LINK_START_LINUX_SPEC ""