73e734bea5
http://llvm.org/bugs/show_bug.cgi?id=15086, llvm tail call optimization is wrong for x86. For Android/x86 to use SSE* instructions safely, stack should be 16-byte aligned before JNI function call, which isn't true for all x86 device, so -mstackrealign should be the default. BUG: 19234330 Change-Id: I4c6676366788772dbe64fd7f0dd33b3ed5c9b80e
74 lines
2.8 KiB
Makefile
74 lines
2.8 KiB
Makefile
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include $(BUILD_SYSTEM)/clang/x86.mk
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CLANG_CONFIG_x86_TARGET_TRIPLE := i686-linux-android
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# NOTE: There is no i686-linux-android prebuilt, so we must hardcode the
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# x86_64 target instead.
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CLANG_CONFIG_x86_TARGET_TOOLCHAIN_PREFIX := \
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$($(clang_2nd_arch_prefix)TARGET_TOOLCHAIN_ROOT)/x86_64-linux-android/bin
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CLANG_CONFIG_x86_TARGET_EXTRA_ASFLAGS := \
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$(CLANG_CONFIG_EXTRA_ASFLAGS) \
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$(CLANG_CONFIG_TARGET_EXTRA_ASFLAGS) \
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$(CLANG_CONFIG_x86_EXTRA_ASFLAGS) \
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-target $(CLANG_CONFIG_x86_TARGET_TRIPLE) \
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-B$(CLANG_CONFIG_x86_TARGET_TOOLCHAIN_PREFIX)
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CLANG_CONFIG_x86_TARGET_EXTRA_CFLAGS := \
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$(CLANG_CONFIG_EXTRA_CFLAGS) \
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$(CLANG_CONFIG_TARGET_EXTRA_CFLAGS) \
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$(CLANG_CONFIG_x86_EXTRA_CFLAGS) \
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$(CLANG_CONFIG_x86_TARGET_EXTRA_ASFLAGS) \
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-fno-optimize-sibling-calls \
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-mstackrealign
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# http://llvm.org/bugs/show_bug.cgi?id=15086,
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# llvm tail call optimization is wrong for x86.
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# -mstackrealign is needed to realign stack in native code
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# that could be called from JNI, so that movaps instruction
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# will work on assumed stack aligned local variables.
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CLANG_CONFIG_x86_TARGET_EXTRA_CONLYFLAGS := \
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$(CLANG_CONFIG_EXTRA_CONLYFLAGS) \
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$(CLANG_CONFIG_TARGET_EXTRA_CONLYFLAGS) \
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$(CLANG_CONFIG_x86_EXTRA_CONLYFLAGS)
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CLANG_CONFIG_x86_TARGET_EXTRA_CPPFLAGS := \
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$(CLANG_CONFIG_EXTRA_CPPFLAGS) \
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$(CLANG_CONFIG_TARGET_EXTRA_CPPFLAGS) \
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$(CLANG_CONFIG_x86_EXTRA_CPPFLAGS) \
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CLANG_CONFIG_x86_TARGET_EXTRA_LDFLAGS := \
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$(CLANG_CONFIG_EXTRA_LDFLAGS) \
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$(CLANG_CONFIG_TARGET_EXTRA_LDFLAGS) \
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$(CLANG_CONFIG_x86_EXTRA_LDFLAGS) \
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-target $(CLANG_CONFIG_x86_TARGET_TRIPLE) \
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-B$(CLANG_CONFIG_x86_TARGET_TOOLCHAIN_PREFIX)
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define $(clang_2nd_arch_prefix)convert-to-clang-flags
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$(strip \
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$(call subst-clang-incompatible-x86-flags,\
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$(filter-out $(CLANG_CONFIG_x86_UNKNOWN_CFLAGS),\
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$(1))))
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endef
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$(clang_2nd_arch_prefix)CLANG_TARGET_GLOBAL_CFLAGS := \
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$(call $(clang_2nd_arch_prefix)convert-to-clang-flags,$($(clang_2nd_arch_prefix)TARGET_GLOBAL_CFLAGS)) \
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$(CLANG_CONFIG_x86_TARGET_EXTRA_CFLAGS)
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$(clang_2nd_arch_prefix)CLANG_TARGET_GLOBAL_CONLYFLAGS := \
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$(call $(clang_2nd_arch_prefix)convert-to-clang-flags,$($(clang_2nd_arch_prefix)TARGET_GLOBAL_CONLYFLAGS)) \
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$(CLANG_CONFIG_x86_TARGET_EXTRA_CONLYFLAGS)
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$(clang_2nd_arch_prefix)CLANG_TARGET_GLOBAL_CPPFLAGS := \
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$(call $(clang_2nd_arch_prefix)convert-to-clang-flags,$($(clang_2nd_arch_prefix)TARGET_GLOBAL_CPPFLAGS)) \
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$(CLANG_CONFIG_x86_TARGET_EXTRA_CPPFLAGS)
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$(clang_2nd_arch_prefix)CLANG_TARGET_GLOBAL_LDFLAGS := \
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$(call $(clang_2nd_arch_prefix)convert-to-clang-flags,$($(clang_2nd_arch_prefix)TARGET_GLOBAL_LDFLAGS)) \
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$(CLANG_CONFIG_x86_TARGET_EXTRA_LDFLAGS)
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$(clang_2nd_arch_prefix)RS_TRIPLE := armv7-none-linux-gnueabi
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$(clang_2nd_arch_prefix)RS_TRIPLE_CFLAGS := -D__i386__
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$(clang_2nd_arch_prefix)RS_COMPAT_TRIPLE := i686-linux-android
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