From 71076eb95220a2ae5fb0759a1324ef5997f6df49 Mon Sep 17 00:00:00 2001 From: Max Filippov Date: Wed, 7 Nov 2018 20:52:55 +0000 Subject: gcc: xtensa: don't force PIC for uclinux target xtensa-uclinux uses bFLT executable file format that cannot relocate fields representing offsets from data to code. C++ objects built as PIC use offsets to encode FDE structures. As a result C++ exception handling doesn't work correctly on xtensa-uclinux. Don't use PIC by default on xtensa-uclinux. gcc/ 2018-11-07 Max Filippov Backport from mainline 2018-11-05 Max Filippov * config/xtensa/uclinux.h (XTENSA_ALWAYS_PIC): Change to 0. git-svn-id: https://gcc.gnu.org/svn/gcc/branches/gcc-6-branch@265890 138bc75d-0d04-0410-961f-82ee72b054a4 --- gcc/ChangeLog | 7 +++++++ gcc/config/xtensa/uclinux.h | 4 ++-- 2 files changed, 9 insertions(+), 2 deletions(-) diff --git a/gcc/ChangeLog b/gcc/ChangeLog index 6d1036d23b6..df94dfda70b 100644 --- a/gcc/ChangeLog +++ b/gcc/ChangeLog @@ -1,3 +1,10 @@ +2018-11-07 Max Filippov + + Backport from mainline + 2018-11-05 Max Filippov + + * config/xtensa/uclinux.h (XTENSA_ALWAYS_PIC): Change to 0. + 2018-10-26 Release Manager * GCC 6.5.0 released. diff --git a/gcc/config/xtensa/uclinux.h b/gcc/config/xtensa/uclinux.h index 6279a9934ae..82ec2602f41 100644 --- a/gcc/config/xtensa/uclinux.h +++ b/gcc/config/xtensa/uclinux.h @@ -59,8 +59,8 @@ along with GCC; see the file COPYING3. If not see #undef LOCAL_LABEL_PREFIX #define LOCAL_LABEL_PREFIX "." -/* Always enable "-fpic" for Xtensa Linux. */ -#define XTENSA_ALWAYS_PIC 1 +/* Don't enable "-fpic" for Xtensa uclinux. */ +#define XTENSA_ALWAYS_PIC 0 #undef TARGET_LIBC_HAS_FUNCTION #define TARGET_LIBC_HAS_FUNCTION no_c99_libc_has_function -- cgit v1.2.3