genode/repos/libports/lib/import/import-libc.mk

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2011-12-22 15:19:25 +00:00
#
# Add platform-specific libc headers to standard include search paths
#
ifeq ($(filter-out $(SPECS),x86_32),)
LIBC_ARCH_INC_DIR := include/spec/x86_32/libc
endif # x86_32
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ifeq ($(filter-out $(SPECS),x86_64),)
LIBC_ARCH_INC_DIR := include/spec/x86_64/libc
endif # x86_64
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ifeq ($(filter-out $(SPECS),arm),)
CC_OPT += -D__ARM_PCS_VFP
LIBC_ARCH_INC_DIR := include/spec/arm/libc
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endif # ARM
ifeq ($(filter-out $(SPECS),arm_64),)
LIBC_ARCH_INC_DIR := include/spec/arm_64/libc
endif # ARM64
ifeq ($(filter-out $(SPECS),riscv),)
LIBC_ARCH_INC_DIR := include/spec/riscv/libc
endif # RISC-V
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#
# If we found no valid include path for the configured target platform,
# we have to prevent the build system from building the target. This is
# done by adding an artificial requirement.
#
ifeq ($(LIBC_ARCH_INC_DIR),)
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REQUIRES += libc_support_for_your_target_platform
endif
ifeq ($(CONTRIB_DIR),)
REP_INC_DIR += include/libc
REP_INC_DIR += $(LIBC_ARCH_INC_DIR)
ifeq ($(filter-out $(SPECS),x86),)
REP_INC_DIR += include/spec/x86/libc
endif
else
LIBC_PORT_DIR := $(call select_from_ports,libc)
INC_DIR += $(LIBC_PORT_DIR)/include/libc
INC_DIR += $(LIBC_PORT_DIR)/$(LIBC_ARCH_INC_DIR)
ifeq ($(filter-out $(SPECS),x86),)
INC_DIR += $(LIBC_PORT_DIR)/include/spec/x86/libc
endif
endif
#
# Genode-specific supplements to standard libc headers
#
REP_INC_DIR += include/libc-genode
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#
# Prevent gcc headers from defining __size_t. This definition is done in
# machine/_types.h.
#
CC_OPT += -D__FreeBSD__=12
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#
# Prevent gcc-4.4.5 from generating code for the family of 'sin' and 'cos'
# functions because the gcc-generated code would actually call 'sincos'
# or 'sincosf', which is a GNU extension, not provided by our libc.
#
CC_OPT += -fno-builtin-sin -fno-builtin-cos -fno-builtin-sinf -fno-builtin-cosf
CC_OPT += -D__GENODE__