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common.mk
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common.mk
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##
# Common Makefile definitions.
# Copyright (c) INSIDE Secure, 2012-2015. All Rights Reserved.
#
#-------------------------------------------------------------------------------
## Makefile variables that must be defined in this file
# @param[out] $(BUILD) Set here for release or debug
BUILD:=release ##< Release build strips binary and optimizes
#BUILD:=debug ##< Debug build keeps debug symbols and disables compiler optimizations. Assembly language optimizations remain enabled
# @param[out] $(PKCS11_LIB) Optional path and names of PKCS11 libraries
#-------------------------------------------------------------------------------
## Makefile variables that are read by this file.
# @param[in] $(MATRIXSSL_ROOT) Must be set to root MatrixSSL directory
# @param[in] $(CC) Used to determine the target platform, which will differ from host if cross compiling.
# @param[in] $(CPU) If set, should be the target cpu for the compiler, suitable for the '-mcpu=' flag. See 'gcc --help=target' for valid values.
#-------------------------------------------------------------------------------
## Makefile variables that are modified by this file
# @param[in,out] $(CFLAGS) Appended with many options as determined by this file, to be passed to compiler
# @param[in,out] $(LDFLAGS) Appended with many options as determined by this file, to be passed to linker
#-------------------------------------------------------------------------------
## Makefile variables that are created by this file
# @param[out] $(OSDEP) Set to platform code directory (./core/$OSDEP/osdep.c), based on $(CC)
# @param[out] $(CCARCH) Set to compiler's target architecture, based on $(CC)
# @param[out] $(STRIP) Set to the executable to use to strip debug symbols from executables
# @param[out] $(STROPS) Human readable description of relevant MatrixSSL compile options.
# @param[out] $(O) Set to the target platform specific object file extension
# @param[out] $(A) Set to the target phatform specific static library (archive) file extension
# @param[out] $(E) Set to the target platform specific executable file extension
#-------------------------------------------------------------------------------
## Set the directory path that contains the core, crypto and matrixssl directories.
# @note MAKEFILE_LIST is set by make to list of parsed Makefiles so far.
# We get the last one in the list (this file), remove the filename,
# and remove the trailing '/'
#MATRIXSSL_ROOT:=$(patsubst %/,%,$(dir $(lastword $(MAKEFILE_LIST))))
## Based on the value of CC, determine the target, eg.
# x86_64-redhat-linux
# i686-linux-gnu
# x86_64-apple-darwin14.0.0
# arm-linux-gnueabi
# arm-linux-gnueabihf
# arm-none-eabi
# mips-linux-gnu
# powerpc-linux-gnu
CCARCH:=$(shell $(CC) -v 2>&1 | sed -n '/Target: / s/// p')
STROPTS:="Built for $(CCARCH)"
## uname of the Host environment, eg.
# Linux
# Darwin
# @note Unused
#UNAME:=$(shell uname)
## Standard file extensions for Linux/OS X.
O:=.o
A:=.a
E=
# Check if this version of make supports undefine
ifneq (,$(findstring undefine,$(.FEATURES)))
HAVE_UNDEFINE:=1
endif
ifdef MATRIX_DEBUG
CFLAGS+=-O0 -g -DDEBUG -Wall
STRIP:=test # no-op
else
ifneq (,$(findstring -none,$(CCARCH)))
CFLAGS+=-Os -Wall # Compile bare-metal for size
else
CFLAGS+=-O3 -Wall # Compile all others for speed
endif
STRIP:=strip
endif
ifneq (,$(findstring -linux,$(CCARCH)))
JOBS:=-j$(shell grep -c processor /proc/cpuinfo)
else ifneq (,$(findstring apple,$(CCARCH)))
JOBS:=-j$(shell sysctl -n machdep.cpu.thread_count)
endif
default: $(BUILD)
debug:
@$(MAKE) compile "MATRIX_DEBUG=1"
release:
@$(MAKE) $(JOBS) compile
# 64 Bit Intel Target
ifneq (,$(findstring x86_64-,$(CCARCH)))
CFLAGS+=-m64
STROPTS+=", 64-bit Intel RSA/ECC ASM"
# Enable AES-NI if the host supports it (assumes Host is Target)
ifneq (,$(findstring -linux,$(CCARCH)))
ifeq ($(shell grep -o -m1 aes /proc/cpuinfo),aes)
CFLAGS+=-maes -mpclmul -msse4.1
STROPTS+=", AES-NI ASM"
endif
else ifneq (,$(findstring apple,$(CCARCH)))
ifeq ($(shell sysctl -n hw.optional.aes),1)
CFLAGS+=-maes -mpclmul -msse4.1
STROPTS+=", AES-NI ASM"
endif
endif
# 32 Bit Intel Target
else ifneq (,$(findstring i686-,$(CCARCH)))
CFLAGS+=-m32
STROPTS+=", 32-bit Intel RSA/ECC ASM"
# ARM Target
else ifneq (,$(findstring arm-,$(CCARCH)))
STROPTS+=", 32-bit ARM RSA/ECC ASM"
ifneq (,$(findstring arm-linux,$(CCARCH)))
HARDWARE:=$(shell sed -n '/Hardware[ \t]*: / s/// p' /proc/cpuinfo)
# Raspberry Pi Host and Target
ifneq (,$(findstring BCM2708,$(HARDWARE)))
CFLAGS+=-mfpu=vfp -mfloat-abi=hard -ffast-math -march=armv6zk -mtune=arm1176jzf-s
STROPTS+=", Raspberry Pi"
endif
# Beagleboard/bone Host and Target
ifneq (,$(findstring AM33XX,$(HARDWARE)))
CFLAGS+=-mfpu=neon -mfloat-abi=hard -ffast-math -march=armv7-a -mtune=cortex-a8
STROPTS+=", Beagleboard"
endif
ifdef HAVE_UNDEFINE
undefine HARDWARE
endif
endif
endif
CFLAGS+=-ffunction-sections -fdata-sections -fomit-frame-pointer
# If we're using clang (it may be invoked via 'cc' or 'gcc'),
# handle minor differences in compiler behavior vs. gcc
ifeq ($(shell $(CC) --version | grep -o clang),clang)
CFLAGS+=-Wno-error=unused-variable -Wno-error=\#warnings -Wno-error=\#pragma-messages
endif
# Handle differences between the OS X ld and GNU ld
ifneq (,$(findstring -apple,$(CCARCH)))
LDFLAGS+=-Wl,-dead_strip
else
LDFLAGS+=-Wl,--gc-sections
endif
CFLAGS+=-I$(MATRIXSSL_ROOT)
# Linux Target
ifneq (,$(findstring -linux,$(CCARCH)))
OSDEP:=POSIX
CFLAGS+=-I/usr/include
# OS X Target
else ifneq (,$(findstring -apple,$(CCARCH)))
OSDEP:=POSIX
CFLAGS+=-isystem -I/usr/include
# Bare Metal / RTOS Target
else ifneq (,$(findstring -none,$(CCARCH)))
OSDEP:=METAL
CFLAGS+=-fno-exceptions -fno-unwind-tables -fno-non-call-exceptions -fno-asynchronous-unwind-tables -ffreestanding -fno-builtin -nostartfiles
ifneq (,$(findstring cortex-,$(CPU)))
CFLAGS+=-mthumb -mcpu=$(CPU) -mslow-flash-data
ifeq (cortex-m4,$(CPU))
CFLAGS+=-mcpu=cortex-m4 -mtune=cortex-m4
else ifeq (cortex-m3,$(CPU))
CFLAGS+=-mcpu=cortex-m3 -mtune=cortex-m3 -mfpu=vpf
else ifeq (cortex-m0,$(CPU))
CFLAGS+=-mcpu=cortex-m0 -mtune=cortex-m0 -mfpu=vpf
endif
endif
endif
# This must be defined after OSDEP, because core/Makefile uses OSDEP in SRC
OBJS:=$(SRC:.c=.o) $(SRC:.S:*.o)
# Remove extra spaces in CFLAGS
#CFLAGS:=$(strip $(CFLAGS))
# Display the precompiler defines for the current build settings
defines:
:| $(CC) $(CFLAGS) -dM -E -x c -