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tools: Add LoongArch build infrastructure
We will add tools support for LoongArch (bpf, perf, objtool, etc.), add build infrastructure and common headers for preparation. Signed-off-by: Huacai Chen <chenhuacai@loongson.cn>
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tools/arch/loongarch/include/uapi/asm/bitsperlong.h
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9
tools/arch/loongarch/include/uapi/asm/bitsperlong.h
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@ -0,0 +1,9 @@
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/* SPDX-License-Identifier: GPL-2.0 WITH Linux-syscall-note */
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#ifndef __ASM_LOONGARCH_BITSPERLONG_H
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#define __ASM_LOONGARCH_BITSPERLONG_H
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#define __BITS_PER_LONG (__SIZEOF_POINTER__ * 8)
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#include <asm-generic/bitsperlong.h>
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#endif /* __ASM_LOONGARCH_BITSPERLONG_H */
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@ -5,7 +5,7 @@ HOSTARCH := $(shell uname -m | sed -e s/i.86/x86/ -e s/x86_64/x86/ \
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-e s/s390x/s390/ -e s/parisc64/parisc/ \
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-e s/ppc.*/powerpc/ -e s/mips.*/mips/ \
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-e s/sh[234].*/sh/ -e s/aarch64.*/arm64/ \
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-e s/riscv.*/riscv/)
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-e s/riscv.*/riscv/ -e s/loongarch.*/loongarch/)
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ifndef ARCH
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ARCH := $(HOSTARCH)
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@ -34,6 +34,15 @@ ifeq ($(ARCH),sh64)
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SRCARCH := sh
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endif
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# Additional ARCH settings for loongarch
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ifeq ($(ARCH),loongarch32)
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SRCARCH := loongarch
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endif
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ifeq ($(ARCH),loongarch64)
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SRCARCH := loongarch
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endif
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LP64 := $(shell echo __LP64__ | ${CC} ${CFLAGS} -E -x c - | tail -n 1)
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ifeq ($(LP64), 1)
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IS_64_BIT := 1
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