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Improve cross-compilation #30

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60 changes: 45 additions & 15 deletions Makefile
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Original file line number Diff line number Diff line change
@@ -1,12 +1,8 @@
# TRAGET may be "x86_64" or "x86" or "aarch64"
TARGET = x86_64
# BUILD can be "debug" or "release"
BUILD = debug
BUILD_DIR = .
SRC_DIR = .

CC = gcc
CXX = g++
BUILD_CC = gcc
CFLAGS = -Wall -Wextra -Wno-unused-parameter
LDFLAGS = -lm
Expand All @@ -21,21 +17,55 @@ ifeq (release, $(BUILD))
CFLAGS += -O2 -g
endif

ifeq (x86_64, $(TARGET))
CFLAGS += -DIR_TARGET_X64
processor :=
ifndef CROSS_COMPILE
processor := $(shell uname -m)
CC ?= gcc
CXX ?= g++
ifeq ($(strip $(processor)+$(TARGET)),x86_64+x86)
check_x86 := $(shell echo | cpp -m32 -dM - | grep "__i386__" >/dev/null && echo 1)
ifeq ($(check_x86),1)
CFLAGS += -m32
processor = i386
else
$(error "gcc-multilib is not available. Check the installation or specify with CROSS_COMPILE.")
endif
endif
else # CROSS_COMPILE was set
CC := $(CROSS_COMPILE)gcc
CXX := $(CROSS_COMPILE)g++
check_aarch64 := $(shell echo | $(CROSS_COMPILE)cpp -dM - | grep "__aarch64__" >/dev/null && echo 1)
ifeq ($(check_aarch64),1)
processor = aarch64
endif
check_x64 := $(shell echo | $(CROSS_COMPILE)cpp -dM - | grep "__x86_64__" >/dev/null && echo 1)
ifeq ($(check_x64),1)
processor = x86_64
endif
check_x86 := $(shell echo | $(CROSS_COMPILE)cpp -dM - | grep "__i386__" >/dev/null && echo 1)
ifeq ($(check_x86),1)
processor = i386
endif
ifdef SYSROOT
CC += --sysroot=$(SYSROOT)
endif
endif

# Follow platform-specific configurations
ifeq ($(processor),$(filter $(processor),aarch64 arm64))
CFLAGS += -D IR_TARGET_AARCH64
DASM_ARCH = aarch64
DASM_FLAGS =
else ifeq ($(processor),$(filter $(processor),x86_64))
CFLAGS += -D IR_TARGET_X64
DASM_ARCH = x86
DASM_FLAGS = -D X64=1
endif
ifeq (x86, $(TARGET))
CFLAGS += -m32 -DIR_TARGET_X86
else ifeq ($(processor),$(filter $(processor),i386 i686))
CFLAGS += -D IR_TARGET_X86
DASM_ARCH = x86
DASM_FLAGS =
endif
ifeq (aarch64, $(TARGET))
CC= aarch64-linux-gnu-gcc --sysroot=$(HOME)/php/ARM64
CFLAGS += -DIR_TARGET_AARCH64
DASM_ARCH = aarch64
DASM_FLAGS =
else
$(error Unsupported architecture)
endif

OBJS_COMMON = $(BUILD_DIR)/ir.o $(BUILD_DIR)/ir_strtab.o $(BUILD_DIR)/ir_cfg.o \
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