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Use rcrt1.o%s/grcrt1.o%s to relocate static PIE

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crt1.o is used to create dynamic and non-PIE static executables.  Static
PIE needs to link with rcrt1.o, instead of crt1.o, which is also used by
musl libc and OpenBSD:

https://gcc.gnu.org/ml/gcc/2015-06/msg00008.html

to relocate static PIE at run-time.  When -pg is used with -static-pie,
grcrt1.o should be used.

	* config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Use
	rcrt1.o%s/grcrt1.o%s for -static-pie.

From-SVN: r254890
This commit is contained in:
H.J. Lu 2017-11-17 18:37:58 +00:00 • committed by H.J. Lu
parent 274c2d3f14
commit 5dbc00611a
2 changed files with 8 additions and 2 deletions
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5
gcc/ChangeLog
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@ -1,3 +1,8 @@
2017-11-17 H.J. Lu <hongjiu.lu@intel.com>
* config/gnu-user.h (GNU_USER_TARGET_STARTFILE_SPEC): Use
rcrt1.o%s/grcrt1.o%s for -static-pie.
2017-11-17 Jan Hubicka <hubicka@ucw.cz>
* i386.c (ix86_multiplication_cost, ix86_division_cost,

5
gcc/config/gnu-user.h
View file

@ -51,9 +51,10 @@ 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; \
pg|p|profile:%{static-pie:grcrt1.o%s;:gcrt1.o%s}; \
static:crt1.o%s; \
static-pie|" PIE_SPEC ":Scrt1.o%s; \
static-pie:rcrt1.o%s; \
" PIE_SPEC ":Scrt1.o%s; \
:crt1.o%s} \
crti.o%s \
%{static:crtbeginT.o%s; \