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8ad56a6c0e
Move the libc-i386, libc-amd64, and libc-arm include directories into the standard "include/spec" directory. This allows the platform specific headers in the libc API package to be detected in a generic manner. Ref #3051
61 lines
1.6 KiB
Makefile
61 lines
1.6 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 $(SPECS),arm),)
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LIBC_ARCH_INC_DIR := include/spec/arm/libc
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endif # ARM
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#
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# If we found no valid include path for the configured target platform,
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# we have to prevent the build system from building the target. This is
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# done by adding an artificial requirement.
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#
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ifeq ($(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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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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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__=8
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#
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# Provide C99 API functions (needed for C++11 in stdcxx at least)
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#
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CC_OPT += -D__ISO_C_VISIBLE=1999
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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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#
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# Enable Nim POSIX support when linking with this library
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#
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NIM_OPT += -d:posix
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