diff options
| author | Thiago Macieira <thiago.macieira@intel.com> | 2015-05-05 08:43:42 -0700 |
|---|---|---|
| committer | Simon Hausmann <simon.hausmann@theqtcompany.com> | 2015-05-07 19:42:43 +0000 |
| commit | 36d6eb721e7d5997ade75e289d4088dc48678d0d (patch) | |
| tree | 208215fcc41b726e3f401936724ffbc4e427dbee /mkspecs | |
| parent | ace86dca159d50886be5bcff7abe72383cad9fde (diff) | |
Require -fPIC instead of just -fPIE for -reduce-relocations
GCC 5 combined with a recent binutils have a new optimization that
allows them to generate copy relocations even in -fPIE code. Clang has
the same functionality when compiling an executable with -flto. We need
to let the compilers know that they cannot use copy relocations, so they
need to use really position-independent code.
Position independent code throughout is not really required. We just
need the compilers to use position-independent access to symbols coming
from the Qt libraries, but there's currently no other way of doing that.
Task-number: QTBUG-45755
Change-Id: I0d4913955e3745b69672ffff13db5df7377398c5
Reviewed-by: Simon Hausmann <simon.hausmann@theqtcompany.com>
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Diffstat (limited to 'mkspecs')
| -rw-r--r-- | mkspecs/common/gcc-base.conf | 2 | ||||
| -rw-r--r-- | mkspecs/common/qcc-base.conf | 2 | ||||
| -rw-r--r-- | mkspecs/linux-icc/qmake.conf | 2 |
3 files changed, 3 insertions, 3 deletions
diff --git a/mkspecs/common/gcc-base.conf b/mkspecs/common/gcc-base.conf index a149f4d907..e4ccbd7156 100644 --- a/mkspecs/common/gcc-base.conf +++ b/mkspecs/common/gcc-base.conf @@ -42,7 +42,7 @@ QMAKE_CFLAGS_RELEASE += $$QMAKE_CFLAGS_OPTIMIZE QMAKE_CFLAGS_DEBUG += -g QMAKE_CFLAGS_SHLIB += -fPIC QMAKE_CFLAGS_STATIC_LIB += -fPIC -QMAKE_CFLAGS_APP += -fPIE +QMAKE_CFLAGS_APP += -fPIC QMAKE_CFLAGS_ISYSTEM = -isystem QMAKE_CFLAGS_YACC += -Wno-unused -Wno-parentheses QMAKE_CFLAGS_HIDESYMS += -fvisibility=hidden diff --git a/mkspecs/common/qcc-base.conf b/mkspecs/common/qcc-base.conf index f529d7fc7b..8276316c3f 100644 --- a/mkspecs/common/qcc-base.conf +++ b/mkspecs/common/qcc-base.conf @@ -23,7 +23,7 @@ QMAKE_CFLAGS_RELEASE_WITH_DEBUGINFO += $$QMAKE_CFLAGS_OPTIMIZE -g QMAKE_CFLAGS_DEBUG += -g QMAKE_CFLAGS_SHLIB += -fPIC -shared QMAKE_CFLAGS_STATIC_LIB += -fPIC -QMAKE_CFLAGS_APP += -fPIE +QMAKE_CFLAGS_APP += -fPIC QMAKE_CFLAGS_YACC += -Wno-unused -Wno-parentheses QMAKE_CFLAGS_HIDESYMS += -fvisibility=hidden QMAKE_CFLAGS_SSE2 += -msse2 diff --git a/mkspecs/linux-icc/qmake.conf b/mkspecs/linux-icc/qmake.conf index 8119c8aa09..9190aa9f28 100644 --- a/mkspecs/linux-icc/qmake.conf +++ b/mkspecs/linux-icc/qmake.conf @@ -12,7 +12,7 @@ QMAKE_LEXFLAGS = QMAKE_YACC = yacc QMAKE_YACCFLAGS = -d QMAKE_CFLAGS = -QMAKE_CFLAGS_APP = -fPIE +QMAKE_CFLAGS_APP = -fPIC QMAKE_CFLAGS_DEPS = -M QMAKE_CFLAGS_WARN_ON = -w1 -Wall -Wcheck -wd1572,873,2259,2261 QMAKE_CFLAGS_WARN_OFF = -w |