TARGET_ABI += -matomic
endif
-STAGING_SUBDIR = usr/$(GNU_TARGET_NAME)/sysroot
+STAGING_SUBDIR = $(GNU_TARGET_NAME)/sysroot
STAGING_DIR = $(HOST_DIR)/$(STAGING_SUBDIR)
ifeq ($(BR2_OPTIMIZE_0),y)
ifeq ($(BR2_OPTIMIZE_S),y)
TARGET_OPTIMIZATION = -Os
endif
+ifeq ($(BR2_OPTIMIZE_FAST),y)
+TARGET_OPTIMIZATION = -Ofast
+endif
ifeq ($(BR2_DEBUG_1),y)
TARGET_DEBUGGING = -g1
endif
TARGET_DEBUGGING = -g3
endif
+TARGET_CFLAGS_RELRO = -Wl,-z,relro
+TARGET_CFLAGS_RELRO_FULL = -Wl,-z,now $(TARGET_CFLAGS_RELRO)
+
+TARGET_LDFLAGS = $(call qstrip,$(BR2_TARGET_LDFLAGS))
+
+ifeq ($(BR2_SSP_REGULAR),y)
+TARGET_CPPFLAGS += -fstack-protector
+else ifeq ($(BR2_SSP_STRONG),y)
+TARGET_CPPFLAGS += -fstack-protector-strong
+else ifeq ($(BR2_SSP_ALL),y)
+TARGET_CPPFLAGS += -fstack-protector-all
+endif
+
+ifeq ($(BR2_RELRO_PARTIAL),y)
+TARGET_CPPFLAGS += $(TARGET_CFLAGS_RELRO)
+TARGET_LDFLAGS += $(TARGET_CFLAGS_RELRO)
+else ifeq ($(BR2_RELRO_FULL),y)
+TARGET_CPPFLAGS += -fPIE $(TARGET_CFLAGS_RELRO_FULL)
+TARGET_LDFLAGS += -pie
+endif
+
+ifeq ($(BR2_FORTIFY_SOURCE_1),y)
+TARGET_CPPFLAGS += -D_FORTIFY_SOURCE=1
+else ifeq ($(BR2_FORTIFY_SOURCE_2),y)
+TARGET_CPPFLAGS += -D_FORTIFY_SOURCE=2
+endif
+
TARGET_CPPFLAGS += -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -D_FILE_OFFSET_BITS=64
TARGET_CFLAGS = $(TARGET_CPPFLAGS) $(TARGET_ABI) $(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING)
TARGET_CXXFLAGS = $(TARGET_CFLAGS)
TARGET_FCFLAGS = $(TARGET_ABI) $(TARGET_OPTIMIZATION) $(TARGET_DEBUGGING)
-TARGET_LDFLAGS = $(call qstrip,$(BR2_TARGET_LDFLAGS))
ifeq ($(BR2_BINFMT_FLAT),y)
TARGET_CFLAGS += $(if $($(PKG)_FLAT_STACKSIZE),-Wl$(comma)-elf2flt=-s$($(PKG)_FLAT_STACKSIZE),\
TARGET_FCFLAGS += -mid-shared-library -mshared-library-id=0
TARGET_CXXFLAGS += -mid-shared-library -mshared-library-id=0
endif
-ifeq ($(BR2_BINFMT_FLAT_SEP_DATA),y)
-TARGET_LDFLAGS += -msep-data
-TARGET_CFLAGS += -msep-data
-TARGET_FCFLAGS += -msep-data
-TARGET_CXXFLAGS += -msep-data
-endif
-
-ifeq ($(BR2_SSP_REGULAR),y)
-TARGET_CFLAGS += -fstack-protector
-TARGET_CXXFLAGS += -fstack-protector
-TARGET_FCFLAGS += -fstack-protector
-else ifeq ($(BR2_SSP_STRONG),y)
-TARGET_CFLAGS += -fstack-protector-strong
-TARGET_CXXFLAGS += -fstack-protector-strong
-TARGET_FCFLAGS += -fstack-protector-strong
-else ifeq ($(BR2_SSP_ALL),y)
-TARGET_CFLAGS += -fstack-protector-all
-TARGET_CXXFLAGS += -fstack-protector-all
-TARGET_FCFLAGS += -fstack-protector-all
-endif
ifeq ($(BR2_TOOLCHAIN_BUILDROOT),y)
-TARGET_CROSS = $(HOST_DIR)/usr/bin/$(GNU_TARGET_NAME)-
+TARGET_CROSS = $(HOST_DIR)/bin/$(GNU_TARGET_NAME)-
else
-TARGET_CROSS = $(HOST_DIR)/usr/bin/$(TOOLCHAIN_EXTERNAL_PREFIX)-
+TARGET_CROSS = $(HOST_DIR)/bin/$(TOOLCHAIN_EXTERNAL_PREFIX)-
endif
# Define TARGET_xx variables for all common binutils/gcc
BISON := $(shell which bison || type -p bison)
UNZIP := $(shell which unzip || type -p unzip) -q
-APPLY_PATCHES = PATH=$(HOST_DIR)/usr/bin:$$PATH support/scripts/apply-patches.sh $(if $(QUIET),-s)
+APPLY_PATCHES = PATH=$(HOST_DIR)/bin:$$PATH support/scripts/apply-patches.sh $(if $(QUIET),-s)
-HOST_CPPFLAGS = -I$(HOST_DIR)/usr/include
+HOST_CPPFLAGS = -I$(HOST_DIR)/include
HOST_CFLAGS ?= -O2
HOST_CFLAGS += $(HOST_CPPFLAGS)
HOST_CXXFLAGS += $(HOST_CFLAGS)
-HOST_LDFLAGS += -L$(HOST_DIR)/lib -L$(HOST_DIR)/usr/lib -Wl,-rpath,$(HOST_DIR)/usr/lib
+HOST_LDFLAGS += -L$(HOST_DIR)/lib -Wl,-rpath,$(HOST_DIR)/lib
+
+# The macros below are taken from linux 4.11 and adapted slightly.
+# Copy more when needed.
+
+# try-run
+# Usage: option = $(call try-run, $(CC)...-o "$$TMP",option-ok,otherwise)
+# Exit code chooses option. "$$TMP" is can be used as temporary file and
+# is automatically cleaned up.
+try-run = $(shell set -e; \
+ TMP="$$(tempfile)"; \
+ if ($(1)) >/dev/null 2>&1; \
+ then echo "$(2)"; \
+ else echo "$(3)"; \
+ fi; \
+ rm -f "$$TMP")
+
+# host-cc-option
+# Usage: HOST_FOO_CFLAGS += $(call host-cc-option,-no-pie,)
+host-cc-option = $(call try-run,\
+ $(HOSTCC) $(HOST_CFLAGS) $(1) -c -x c /dev/null -o "$$TMP",$(1),$(2))
+
# host-intltool should be executed with the system perl, so we save
# the path to the system perl, before a host-perl built by Buildroot
-# might get installed into $(HOST_DIR)/usr/bin and therefore appears
+# might get installed into $(HOST_DIR)/bin and therefore appears
# in our PATH. This system perl will be used as INTLTOOL_PERL.
export PERL=$(shell which perl)
# host-intltool needs libxml-parser-perl, which Buildroot installs in
-# $(HOST_DIR)/usr/lib/perl, so we must make sure that the system perl
+# $(HOST_DIR)/lib/perl, so we must make sure that the system perl
# finds this perl module by exporting the proper value for PERL5LIB.
-export PERL5LIB=$(HOST_DIR)/usr/lib/perl
+export PERL5LIB=$(HOST_DIR)/lib/perl
TARGET_MAKE_ENV = PATH=$(BR_PATH)
PKG_CONFIG_SYSROOT_DIR="/" \
PKG_CONFIG_ALLOW_SYSTEM_CFLAGS=1 \
PKG_CONFIG_ALLOW_SYSTEM_LIBS=1 \
- PKG_CONFIG_LIBDIR="$(HOST_DIR)/usr/lib/pkgconfig:$(HOST_DIR)/usr/share/pkgconfig"
+ PKG_CONFIG_LIBDIR="$(HOST_DIR)/lib/pkgconfig:$(HOST_DIR)/share/pkgconfig"
HOST_CONFIGURE_OPTS = \
$(HOST_MAKE_ENV) \
EXTRA_ENV = \
PATH=$(BR_PATH) \
BR2_DL_DIR=$(BR2_DL_DIR) \
- BUILD_DIR=$(BUILD_DIR)
+ BUILD_DIR=$(BUILD_DIR) \
+ O=$(CANONICAL_O)
################################################################################
# settings we need to pass to configure
# AM_GNU_GETTEXT misdetects musl gettext support.
# musl currently implements api level 1 and 2 (basic + ngettext)
# http://www.openwall.com/lists/musl/2015/04/16/3
-ifeq ($(BR2_TOOLCHAIN_USES_MUSL),y)
+#
+# These autoconf variables should only be pre-seeded when the minimal
+# gettext implementation of musl is used. When the full blown
+# implementation provided by gettext libintl is used, auto-detection
+# works fine, and pre-seeding those values is actually wrong.
+ifeq ($(BR2_TOOLCHAIN_USES_MUSL):$(BR2_PACKAGE_GETTEXT_PROVIDES_LIBINTL),y:)
BR2_GT_CV_FUNC_GNUGETTEXT_LIBC = \
gt_cv_func_gnugettext1_libc=yes \
gt_cv_func_gnugettext2_libc=yes
NLS_OPTS = --disable-nls
endif
+# We need anything that is invalid. Traditionally, we'd have used 'false' (and
+# we did so in the past). However, that breaks libtool for packages that have
+# optional C++ support (e.g. gnutls), because libtool will *require* a *valid*
+# C++ preprocessor as long as CXX is not 'no'.
+# Now, whether we use 'no' or 'false' for CXX as the same side effect: it is an
+# invalid C++ compiler, and thus will cause detection of C++ to fail (which is
+# expected and what we want), while at the same time taming libtool into
+# silence.
ifneq ($(BR2_INSTALL_LIBSTDCPP),y)
-TARGET_CONFIGURE_OPTS += CXX=false
+TARGET_CONFIGURE_OPTS += CXX=no
endif
ifeq ($(BR2_STATIC_LIBS),y)
include package/pkg-rebar.mk
include package/pkg-kernel-module.mk
include package/pkg-waf.mk
+include package/pkg-golang.mk
projects / coffee / buildroot.git / blobdiff