qt5base-lts/mkspecs/common/gcc-base.conf
Allan Sandfeld Jensen b678445901 Fix leaking ISA extensions in LTCG builds
Due to common subexpression elimination instruction set extensions may
leak from the objects where they were enabled when doing link-time
optimizations.

To avoid that this patch disables LTCG/LTO on files built with extra
instruction set extensions.

Change-Id: Ie34ad900be7fb04a0dc4d3562187ee170c183333
Reviewed-by: Oswald Buddenhagen <oswald.buddenhagen@theqtcompany.com>
Reviewed-by: Thiago Macieira <thiago.macieira@intel.com>
2015-03-04 16:45:05 +00:00

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#
# This file is used as a basis for the following compilers:
#
# - The GNU C++ compiler (g++)
# - LLVM
# - Clang
#
# Platform-specific options shared by these compilers are put into:
#
# - gcc-base-mac.conf
# - gcc-base-unix.conf
#
# These base files are then combined with configurations for each compiler:
#
# - g++-base.conf
# - g++-macx.conf
# - g++-unix.conf
# - llvm.conf
# - clang.conf
#
# The combination happens in the top level mkspec, by including a platform-
# specific version of the base-file, for example gcc-base-mac.conf, and then
# a (possibly platform-specific) version of the actual compiler configuration,
# for example g++-macx.conf.
#
# If you are making changes to any of these files, please consider the
# possible effect it may have due to these include-rules, and whether it
# might make more sense to share the rule or make it more specific.
#
# To verify that your change has the desired effect on the final configuration
# you can use the manual test in tests/manual/mkspecs.
#
QMAKE_CFLAGS_OPTIMIZE = -O2
QMAKE_CFLAGS_OPTIMIZE_FULL = -O3
QMAKE_CFLAGS += -pipe
QMAKE_CFLAGS_DEPS += -M
QMAKE_CFLAGS_WARN_ON += -Wall -W
QMAKE_CFLAGS_WARN_OFF += -w
QMAKE_CFLAGS_RELEASE += $$QMAKE_CFLAGS_OPTIMIZE
QMAKE_CFLAGS_DEBUG += -g
QMAKE_CFLAGS_SHLIB += -fPIC
QMAKE_CFLAGS_STATIC_LIB += -fPIC
QMAKE_CFLAGS_APP += -fPIE
QMAKE_CFLAGS_ISYSTEM = -isystem
QMAKE_CFLAGS_YACC += -Wno-unused -Wno-parentheses
QMAKE_CFLAGS_HIDESYMS += -fvisibility=hidden
QMAKE_CFLAGS_EXCEPTIONS_OFF += -fno-exceptions
QMAKE_CFLAGS_SPLIT_SECTIONS += -ffunction-sections
QMAKE_CFLAGS_LTCG = -flto -fno-fat-lto-objects
QMAKE_CFLAGS_LTCG_FATOBJECTS = -ffat-lto-objects
QMAKE_CFLAGS_DISABLE_LTCG = -fno-lto
QMAKE_CXXFLAGS += $$QMAKE_CFLAGS
QMAKE_CXXFLAGS_DEPS += $$QMAKE_CFLAGS_DEPS
QMAKE_CXXFLAGS_WARN_ON += $$QMAKE_CFLAGS_WARN_ON
QMAKE_CXXFLAGS_WARN_OFF += $$QMAKE_CFLAGS_WARN_OFF
QMAKE_CXXFLAGS_RELEASE += $$QMAKE_CFLAGS_RELEASE
QMAKE_CXXFLAGS_DEBUG += $$QMAKE_CFLAGS_DEBUG
QMAKE_CXXFLAGS_SHLIB += $$QMAKE_CFLAGS_SHLIB
QMAKE_CXXFLAGS_STATIC_LIB += $$QMAKE_CFLAGS_STATIC_LIB
QMAKE_CXXFLAGS_APP += $$QMAKE_CFLAGS_APP
QMAKE_CXXFLAGS_YACC += $$QMAKE_CFLAGS_YACC
QMAKE_CXXFLAGS_HIDESYMS += $$QMAKE_CFLAGS_HIDESYMS -fvisibility-inlines-hidden
QMAKE_CXXFLAGS_EXCEPTIONS_OFF += $$QMAKE_CFLAGS_EXCEPTIONS_OFF
QMAKE_CXXFLAGS_SPLIT_SECTIONS += $$QMAKE_CFLAGS_SPLIT_SECTIONS
QMAKE_CXXFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG
QMAKE_CXXFLAGS_LTCG_FATOBJECTS = $$QMAKE_CFLAGS_LTCG_FATOBJECTS
QMAKE_CXXFLAGS_DISABLE_LTCG = $$QMAKE_CFLAGS_DISABLE_LTCG
QMAKE_LFLAGS +=
QMAKE_LFLAGS_DEBUG +=
QMAKE_LFLAGS_APP +=
QMAKE_LFLAGS_RELEASE +=
QMAKE_LFLAGS_EXCEPTIONS_OFF +=
QMAKE_LFLAGS_LTCG = $$QMAKE_CFLAGS_LTCG -fuse-linker-plugin
QMAKE_CFLAGS_SSE2 += -msse2
QMAKE_CFLAGS_SSE3 += -msse3
QMAKE_CFLAGS_SSSE3 += -mssse3
QMAKE_CFLAGS_SSE4_1 += -msse4.1
QMAKE_CFLAGS_SSE4_2 += -msse4.2
QMAKE_CFLAGS_AVX += -mavx
QMAKE_CFLAGS_AVX2 += -mavx2
QMAKE_CFLAGS_NEON += -mfpu=neon
# Wrapper tools that understand .o/.a files with GIMPLE instead of machine code
QMAKE_AR_LTCG = gcc-ar cqs
QMAKE_NM_LTCG = gcc-nm -P
QMAKE_RANLIB_LTCG = true # No need to run since gcc-ar has "s"
include(sanitize.conf)