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