ext-cryptopp/TestScripts/setenv-ios.sh
2021-02-07 01:38:47 -05:00

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#!/usr/bin/env bash
#############################################################################
#
# This script sets the cross-compile environment for Xcode/iOS.
#
# Based upon OpenSSL's setenv-android.sh by TH, JW, and SM.
# Heavily modified by JWW for Crypto++.
#
# Crypto++ Library is copyrighted as a compilation and (as of version 5.6.2)
# licensed under the Boost Software License 1.0, while the individual files
# in the compilation are all public domain.
#
# See http://www.cryptopp.com/wiki/iOS_(Command_Line) for more details
#############################################################################
#########################################
##### Some validation #####
#########################################
# In the past we could mostly infer arch or cpu from the SDK (and mostly
# vice-versa). Nowadays we need the user to set it for us because Apple
# platforms have both 32-bit or 64-bit variations.
# cryptest-ios.sh may run this script without sourcing.
if [ "$0" = "${BASH_SOURCE[0]}" ]; then
echo "setenv-ios.sh is usually sourced, but not this time."
fi
# This supports 'source setenv-ios.sh iPhone arm64' and
# 'source setenv-ios.sh IOS_SDK=iPhone IOS_CPU=arm64'
if [[ -n "$1" ]]
then
arg1=$(echo "$1" | cut -f 1 -d '=')
arg2=$(echo "$1" | cut -f 2 -d '=')
if [[ -n "${arg2}" ]]; then
IOS_SDK="${arg2}"
else
IOS_SDK="${arg1}"
fi
printf "Using positional arg, IOS_SDK=%s\n" "${IOS_SDK}"
fi
# This supports 'source setenv-ios.sh iPhone arm64' and
# 'source setenv-ios.sh IOS_SDK=iPhone IOS_CPU=arm64'
if [[ -n "$2" ]]
then
arg1=$(echo "$2" | cut -f 1 -d '=')
arg2=$(echo "$2" | cut -f 2 -d '=')
if [[ -n "${arg2}" ]]; then
IOS_CPU="${arg2}"
else
IOS_CPU="${arg1}"
fi
printf "Using positional arg, IOS_CPU=%s\n" "${IOS_CPU}"
fi
if [ -z "$IOS_SDK" ]; then
echo "IOS_SDK is not set. Please set it"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
if [ -z "$IOS_CPU" ]; then
echo "IOS_CPU is not set. Please set it"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
#########################################
##### Clear old options #####
#########################################
unset IS_IOS
unset IS_ANDROID
unset IS_ARM_EMBEDDED
unset IOS_CXXFLAGS
unset IOS_SYSROOT
#########################################
##### Small Fixups, if needed #####
#########################################
if [[ "$IOS_SDK" == "iPhone" ]]; then
IOS_SDK=iPhoneOS
fi
if [[ "$IOS_SDK" == "iPhoneOSSimulator" ]]; then
IOS_SDK=iPhoneSimulator
fi
if [[ "$IOS_SDK" == "TV" || "$IOS_SDK" == "AppleTV" ]]; then
IOS_SDK=AppleTVOS
fi
if [[ "$IOS_SDK" == "Watch" || "$IOS_SDK" == "AppleWatch" ]]; then
IOS_SDK=WatchOS
fi
if [[ "$IOS_CPU" == "aarch64" || "$IOS_CPU" == "arm64"* || "$IOS_CPU" == "armv8"* ]] ; then
IOS_CPU=arm64
fi
########################################
##### Environment #####
########################################
# The flags below were tested with Xcode 8 on Travis. If
# you use downlevel versions of Xcode, then you can push
# xxx-version-min=n lower. For example, Xcode 7 can use
# -miphoneos-version-min=5. However, Xcode 7 lacks
# AppleTVOS and WatchOS support.
# iPhones can be either 32-bit or 64-bit
if [[ "$IOS_SDK" == "iPhoneOS" && "$IOS_CPU" == "armv7"* ]]; then
MIN_VER=-miphoneos-version-min=6
elif [[ "$IOS_SDK" == "iPhoneOS" && "$IOS_CPU" == "arm64" ]]; then
MIN_VER=-miphoneos-version-min=6
# Fixups for convenience
elif [[ "$IOS_SDK" == "iPhoneOS" && "$IOS_CPU" == "i386" ]]; then
IOS_SDK=iPhoneSimulator
# MIN_VER=-miphoneos-version-min=6
MIN_VER=-miphonesimulator-version-min=6
elif [[ "$IOS_SDK" == "iPhoneOS" && "$IOS_CPU" == "x86_64" ]]; then
IOS_SDK=iPhoneSimulator
# MIN_VER=-miphoneos-version-min=6
MIN_VER=-miphonesimulator-version-min=6
# Simulator builds
elif [[ "$IOS_SDK" == "iPhoneSimulator" && "$IOS_CPU" == "i386" ]]; then
MIN_VER=-miphonesimulator-version-min=6
elif [[ "$IOS_SDK" == "iPhoneSimulator" && "$IOS_CPU" == "x86_64" ]]; then
MIN_VER=-miphonesimulator-version-min=6
# Apple TV can be 32-bit Intel (1st gen), 32-bit ARM (2nd, 3rd gen) or 64-bit ARM (4th gen)
elif [[ "$IOS_SDK" == "AppleTVOS" && "$IOS_CPU" == "i386" ]]; then
MIN_VER=-mappletvos-version-min=6
elif [[ "$IOS_SDK" == "AppleTVOS" && "$IOS_CPU" == "armv7"* ]]; then
MIN_VER=-mappletvos-version-min=6
elif [[ "$IOS_SDK" == "AppleTVOS" && "$IOS_CPU" == "arm64" ]]; then
MIN_VER=-mappletvos-version-min=6
# Simulator builds
elif [[ "$IOS_SDK" == "AppleTVSimulator" && "$IOS_CPU" == "i386" ]]; then
MIN_VER=-mappletvsimulator-version-min=6
elif [[ "$IOS_SDK" == "AppleTVSimulator" && "$IOS_CPU" == "x86_64" ]]; then
MIN_VER=-mappletvsimulator-version-min=6
# Watch can be either 32-bit or 64-bit ARM. TODO: figure out which
# -mwatchos-version-min=n is needed for arm64. 9 is not enough.
elif [[ "$IOS_SDK" == "WatchOS" && "$IOS_CPU" == "armv7"* ]]; then
MIN_VER=-mwatchos-version-min=6
elif [[ "$IOS_SDK" == "WatchOS" && "$IOS_CPU" == "arm64" ]]; then
MIN_VER=-mwatchos-version-min=10
# Simulator builds. TODO: figure out which -watchos-version-min=n
# is needed for arm64. 6 compiles and links, but is it correct?
elif [[ "$IOS_SDK" == "WatchSimulator" && "$IOS_CPU" == "i386" ]]; then
MIN_VER=-mwatchsimulator-version-min=6
elif [[ "$IOS_SDK" == "WatchSimulator" && "$IOS_CPU" == "x86_64" ]]; then
MIN_VER=-mwatchsimulator-version-min=6
# And the final catch-all
else
echo "IOS_SDK and IOS_CPU are not valid. Please fix them"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
#####################################################################
# Xcode 6 and below cannot handle -miphonesimulator-version-min
# Fix it so the simulator will compile as expected. This trick
# may work on other platforms, but it was not tested.
if [ -n "$(command -v xcodebuild 2>/dev/null)" ]; then
# Output of xcodebuild is similar to "Xcode 6.2". The first cut gets
# the dotted decimal value. The second cut gets the major version.
XCODE_VERSION=$(xcodebuild -version 2>/dev/null | head -n 1 | cut -f2 -d" " | cut -f1 -d".")
if [ -z "$XCODE_VERSION" ]; then XCODE_VERSION=100; fi
if [ "$XCODE_VERSION" -le 6 ]; then
MIN_VER="${MIN_VER//iphonesimulator/iphoneos}"
fi
fi
#####################################################################
# Allow a user override? I think we should be doing this. The use case is:
# move /Applications/Xcode somewhere else for a side-by-side installation.
if [ -z "${XCODE_DEVELOPER-}" ]; then
XCODE_DEVELOPER=$(xcode-select -print-path 2>/dev/null)
fi
if [ ! -d "$XCODE_DEVELOPER" ]; then
echo "ERROR: unable to find XCODE_DEVELOPER directory."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# XCODE_DEVELOPER_SDK is the SDK location.
XCODE_DEVELOPER_SDK="$XCODE_DEVELOPER/Platforms/$IOS_SDK.platform"
if [ ! -d "$XCODE_DEVELOPER_SDK" ]; then
echo "ERROR: unable to find XCODE_DEVELOPER_SDK directory."
echo " Is the SDK supported by Xcode and installed?"
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# XCODE_TOOLCHAIN is the location of the actual compiler tools.
if [ -d "$XCODE_DEVELOPER/Toolchains/XcodeDefault.xctoolchain/usr/bin/" ]; then
XCODE_TOOLCHAIN="$XCODE_DEVELOPER/Toolchains/XcodeDefault.xctoolchain/usr/bin/"
elif [ -d "$XCODE_DEVELOPER_SDK/Developer/usr/bin/" ]; then
XCODE_TOOLCHAIN="$XCODE_DEVELOPER_SDK/Developer/usr/bin/"
fi
if [ -z "$XCODE_TOOLCHAIN" ] || [ ! -d "$XCODE_TOOLCHAIN" ]; then
echo "ERROR: unable to find Xcode cross-compiler tools."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# XCODE_SDK is the SDK name/version being used - adjust the list as appropriate.
# For example, remove 4.3, 6.2, and 6.1 if they are not installed. We go back to
# the 1.0 SDKs because Apple WatchOS uses low numbers, like 2.0 and 2.1.
XCODE_SDK=""
for i in $(seq -f "%.1f" 30.0 -0.1 1.0)
do
if [ -d "$XCODE_DEVELOPER_SDK/Developer/SDKs/$IOS_SDK$i.sdk" ]; then
XCODE_SDK="$IOS_SDK$i.sdk"
break
fi
done
# Error checking
if [ -z "$XCODE_SDK" ]; then
echo "ERROR: unable to find a SDK."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
IOS_CXXFLAGS="-arch $IOS_CPU $MIN_VER"
# The simulators need to disable ASM. They don't receive arch flags.
# https://github.com/weidai11/cryptopp/issues/635
if [[ "$IOS_SDK" == "iPhoneSimulator" || "$IOS_SDK" == "AppleTVSimulator" || "$IOS_SDK" == "WatchSimulator" ]]; then
IOS_CXXFLAGS="$IOS_CXXFLAGS -DCRYPTOPP_DISABLE_ASM"
fi
echo "Configuring for $IOS_SDK ($IOS_CPU)"
IS_IOS=1
IOS_SYSROOT="$XCODE_DEVELOPER_SDK/Developer/SDKs/$XCODE_SDK"
#####################################################################
CPP=cpp; CC=clang; CXX=clang++; LD=ld
AS=as; AR=libtool; RANLIB=ranlib; STRIP=strip
# Error checking
if [ ! -e "$XCODE_TOOLCHAIN/$CC" ]; then
echo "ERROR: Failed to find iOS clang. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -e "$XCODE_TOOLCHAIN/$CXX" ]; then
echo "ERROR: Failed to find iOS clang++. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -e "$XCODE_TOOLCHAIN/$RANLIB" ]; then
echo "ERROR: Failed to find iOS ranlib. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -e "$XCODE_TOOLCHAIN/$AR" ]; then
echo "ERROR: Failed to find iOS ar. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -e "$XCODE_TOOLCHAIN/$AS" ]; then
echo "ERROR: Failed to find iOS as. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
# Error checking
if [ ! -e "$XCODE_TOOLCHAIN/$LD" ]; then
echo "ERROR: Failed to find iOS ld. Please edit this script."
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 1 || return 1
fi
#####################################################################
# Add tools to head of path, if not present already
LENGTH=${#XCODE_TOOLCHAIN}
SUBSTR=${PATH:0:$LENGTH}
if [ "$SUBSTR" != "$XCODE_TOOLCHAIN" ]; then
export PATH="$XCODE_TOOLCHAIN:$PATH"
fi
#####################################################################
# GNUmakefile-cross and Autotools expect these to be set.
# They are also used in the tests below.
export IS_IOS=1
export CPP CC CXX LD AS AR RANLIB STRIP
export IOS_CXXFLAGS IOS_SDK IOS_CPU IOS_SYSROOT
#####################################################################
VERBOSE=${VERBOSE:-1}
if [ "$VERBOSE" -gt 0 ]; then
echo "XCODE_TOOLCHAIN: $XCODE_TOOLCHAIN"
echo "IOS_SDK: $IOS_SDK"
echo "IOS_CPU: $IOS_CPU"
echo "IOS_SYSROOT: $IOS_SYSROOT"
echo "IOS_CXXFLAGS: $IOS_CXXFLAGS"
fi
#####################################################################
echo
echo "*******************************************************************************"
echo "It looks the the environment is set correctly. Your next step is build"
echo "the library with 'make -f GNUmakefile-cross'. You can create a versioned"
echo "shared object using 'HAS_SOLIB_VERSION=1 make -f GNUmakefile-cross'"
echo "*******************************************************************************"
echo
[ "$0" = "${BASH_SOURCE[0]}" ] && exit 0 || return 0