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88 lines
2.8 KiB
Makefile
Executable File
88 lines
2.8 KiB
Makefile
Executable File
LIBS = allocator_avl
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CXX_SRC_CC += misc.cc new_delete.cc malloc_free.cc exception.cc guard.cc
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vpath %.cc $(BASE_DIR)/src/base/cxx
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#
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# Microblaze-specific supplement
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#
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CXX_SRC_CC += atexit.cc
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vpath %.cc $(REP_DIR)/src/base/cxx
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#
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# Here we define all symbols we want to hide in libsupc++ and libgcc_eh
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#
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LIBC_SYMBOLS += malloc free calloc realloc \
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abort fputc fputs fwrite \
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stderr strcat strcpy strlen up \
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memcmp strncmp strcmp sprintf
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#
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# Take the right system libraries
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#
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# Normally, we never include build-system-internal files from library-
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# description files. For building the 'cxx' library, however, we need the
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# information about the used 'gcc' for resolving the location of the C++
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# support libraries. This definition is performed by 'mk/lib.mk' after
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# including this library description file. Hence, we need to manually
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# include 'global.mk' here.
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#
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include $(BASE_DIR)/mk/global.mk
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LIBCXX_GCC = $(shell $(CUSTOM_CXX_LIB) -print-file-name=libsupc++.a) \
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$(shell $(CUSTOM_CXX_LIB) -print-libgcc-file-name)
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# $(shell $(CUSTOM_CXX_LIB) -print-file-name=libgcc_eh.a)
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#
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# Dummy target used by the build system
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#
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SRC_S = supc++.o
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CXX_SRC = $(sort $(CXX_SRC_CC))
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CXX_OBJECTS = $(addsuffix .o,$(basename $(CXX_SRC)))
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LOCAL_SYMBOLS = $(patsubst %,--localize-symbol=%,$(LIBC_SYMBOLS))
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#
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# Prevent symbols of the gcc support libs from being discarded during 'ld -r'
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#
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KEEP_SYMBOLS += __cxa_guard_acquire
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KEEP_SYMBOLS += __moddi3 __divdi3 __umoddi3 __udivdi3
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KEEP_SYMBOLS += _ZTVN10__cxxabiv116__enum_type_infoE
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KEEP_SYMBOLS += __fixunsdfdi
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KEEP_SYMBOLS += __udivsi3 __divsi3
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#
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# Keep symbols additionally needed for linking the libc on ARM
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#
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KEEP_SYMBOLS += __muldi3 __eqdf2 __fixdfsi __ltdf2 __ltdf2 __nedf2 __ltdf2 \
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__gtdf2 __ltdf2 __ledf2 __fixdfsi __ltdf2 __ltdf2 __eqdf2 \
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__fixdfsi __ltdf2 __fixdfsi __eqdf2 __gtdf2 __ltdf2 __gtdf2 \
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__eqdf2 __muldi3 __muldi3
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#
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# Keep symbols needed for floating-point support on ARM
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#
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KEEP_SYMBOLS += __addsf3 __gtsf2 __ltsf2
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#
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# Additional symbols we need to keep when using the arm-none-linux-gnueabi
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# tool chain
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#
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KEEP_SYMBOLS += __aeabi_ldivmod __aeabi_uldivmod __dynamic_cast
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KEEP_SYMBOLS += _ZN10__cxxabiv121__vmi_class_type_infoD0Ev
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KEEP_SYMBOLS += __aeabi_idiv __aeabi_ulcmp __aeabi_fmul __aeabi_dcmpun \
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__aeabi_d2lz __aeabi_f2lz __aeabi_d2f __aeabi_fcmpun \
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__aeabi_f2iz ctx_done sincos sincosf tgamma
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#
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# Rule to link all libc definitions and libsupc++ libraries
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# and to hide after that the exported libc symbols
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#
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$(SRC_S): $(CXX_OBJECTS)
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$(MSG_MERGE)$@
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$(VERBOSE)$(LD) $(addprefix -u ,$(KEEP_SYMBOLS)) -r $(CXX_OBJECTS) $(LIBCXX_GCC) -o $@.tmp
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$(MSG_CONVERT)$@
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$(VERBOSE)$(OBJCOPY) $(LOCAL_SYMBOLS) $@.tmp $@
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$(VERBOSE)$(RM) $@.tmp
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