################################################################################ # # definition of the toolchain wrapper build commands # ################################################################################ # We use --hash-style=both to increase the compatibility of the generated # binary with older platforms, except for MIPS, where the only acceptable # hash style is 'sysv' ifeq ($(findstring mips,$(HOSTARCH)),mips) TOOLCHAIN_WRAPPER_HASH_STYLE = sysv else TOOLCHAIN_WRAPPER_HASH_STYLE = both endif TOOLCHAIN_WRAPPER_ARGS = $($(PKG)_TOOLCHAIN_WRAPPER_ARGS) TOOLCHAIN_WRAPPER_ARGS += -DBR_SYSROOT='"$(STAGING_SUBDIR)"' TOOLCHAIN_WRAPPER_OPTS = \ $(ARCH_TOOLCHAIN_WRAPPER_OPTS) \ $(call qstrip,$(BR2_SSP_OPTION)) \ $(call qstrip,$(BR2_TARGET_OPTIMIZATION)) ifeq ($(BR2_REPRODUCIBLE),y) TOOLCHAIN_WRAPPER_OPTS += -Wl,--build-id=none ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_8),y) TOOLCHAIN_WRAPPER_OPTS += -ffile-prefix-map=$(BASE_DIR)=buildroot else TOOLCHAIN_WRAPPER_OPTS += -D__FILE__=\"\" -D__BASE_FILE__=\"\" -Wno-builtin-macro-redefined endif ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_7),) TOOLCHAIN_WRAPPER_OPTS += -DBR_NEED_SOURCE_DATE_EPOCH endif endif # Disable -ftree-loop-distribute-patterns on microblaze to # workaround a compiler bug with gcc 10 and -O2, -Os or -O3. # https://gcc.gnu.org/git/?p=gcc.git;a=commitdiff;h=5879ab5fafedc8f6f9bfe95a4cf8501b0df90edd # https://gcc.gnu.org/bugzilla/show_bug.cgi?id=97208 ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_10)$(BR2_microblaze),yy) TOOLCHAIN_WRAPPER_OPTS += -fno-tree-loop-distribute-patterns endif # We create a list like '"-mfoo", "-mbar", "-mbarfoo"' so that each flag is a # separate argument when used in execv() by the toolchain wrapper. TOOLCHAIN_WRAPPER_ARGS += \ -DBR_ADDITIONAL_CFLAGS='$(foreach f,$(TOOLCHAIN_WRAPPER_OPTS),"$(f)"$(comma))' ifeq ($(BR2_CCACHE),y) TOOLCHAIN_WRAPPER_ARGS += -DBR_CCACHE endif ifeq ($(BR2_x86_x1000),y) TOOLCHAIN_WRAPPER_ARGS += -DBR_OMIT_LOCK_PREFIX endif # Avoid FPU bug on XBurst CPUs ifeq ($(BR2_mips_xburst),y) # Before gcc 4.6, -mno-fused-madd was needed, after -ffp-contract is # needed ifeq ($(BR2_TOOLCHAIN_GCC_AT_LEAST_4_6),y) TOOLCHAIN_WRAPPER_ARGS += -DBR_FP_CONTRACT_OFF else TOOLCHAIN_WRAPPER_ARGS += -DBR_NO_FUSED_MADD endif endif ifeq ($(BR2_CCACHE_USE_BASEDIR),y) TOOLCHAIN_WRAPPER_ARGS += -DBR_CCACHE_BASEDIR='"$(BASE_DIR)"' endif ifeq ($(BR2_PIC_PIE),y) TOOLCHAIN_WRAPPER_ARGS += -DBR2_PIC_PIE endif ifeq ($(BR2_RELRO_PARTIAL),y) TOOLCHAIN_WRAPPER_ARGS += -DBR2_RELRO_PARTIAL else ifeq ($(BR2_RELRO_FULL),y) TOOLCHAIN_WRAPPER_ARGS += -DBR2_RELRO_FULL endif define TOOLCHAIN_WRAPPER_BUILD $(HOSTCC) $(HOST_CFLAGS) $(TOOLCHAIN_WRAPPER_ARGS) \ -s -Wl,--hash-style=$(TOOLCHAIN_WRAPPER_HASH_STYLE) \ toolchain/toolchain-wrapper.c \ -o $(@D)/toolchain-wrapper endef define TOOLCHAIN_WRAPPER_INSTALL $(INSTALL) -D -m 0755 $(@D)/toolchain-wrapper \ $(HOST_DIR)/bin/toolchain-wrapper endef