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authorH.J. Lu <hongjiu.lu@intel.com>2017-11-17 18:37:58 +0000
committerH.J. Lu <hjl@gcc.gnu.org>2017-11-17 10:37:58 -0800
commit5dbc00611a86e17d34184aaf748bd5c4832c05b6 (patch)
tree64414fe8cf973a41f805724f401380e9b0538a41
parent274c2d3f146e70e7205a2472c6f4d9a93380a80b (diff)
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Use rcrt1.o%s/grcrt1.o%s to relocate static PIE
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
-rw-r--r--gcc/ChangeLog5
-rw-r--r--gcc/config/gnu-user.h5
2 files changed, 8 insertions, 2 deletions
diff --git a/gcc/ChangeLog b/gcc/ChangeLog
index 9d96f95..5c02a76 100644
--- a/gcc/ChangeLog
+++ b/gcc/ChangeLog
@@ -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,
diff --git a/gcc/config/gnu-user.h b/gcc/config/gnu-user.h
index df17b18..93960f5 100644
--- a/gcc/config/gnu-user.h
+++ b/gcc/config/gnu-user.h
@@ -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; \