Merge pull request #1925 from kaleb-himes/ZD4486-XCODE

i386 arch lacks registers to support some tfm assembly without correct CFLAGS

IDE/XCODE/README.md

@@ -54,6 +54,15 @@ device build. Both are debug builds.
 
 You can make an archive for a device, as well. That is a release build.
 
+## Known issues:
+
+When building for older i386 architectures and using tfm.c there are specific
+CFLAGS required to expose the necessary registers for inline assembly in tfm.c.
+An example script has been provided "build-for-i386.sh" that targets the watchos
+by default. If using SDK iphonesimulator10.1 or older you can change the SDK
+variable in that script however newer versions of the SDK no longer support
+i386 for the iphones.
+
 # Installing libwolfssl.a
 
 Simply drag the file libwolfssl_XXX_.a and the directory `include` and drop it into

IDE/XCODE/build-for-i386.sh

@@ -0,0 +1,16 @@
+#!/bin/sh
+
+WORKSPACE=$(eval "pwd")
+PROJ=wolfssl.xcodeproj
+CONFIG=Release
+SCHEME=wolfssl_ios
+ARCH=i386
+SDK=watchsimulator5.1
+CONF_BUILD_DIR=${WORKSPACE}/simulator
+
+xcodebuild clean build -project ${PROJ} -configuration ${CONFIG} \
+           -scheme ${SCHEME} -arch ${ARCH} -sdk ${SDK} \
+           BITCODE_GENERATION_MODE=bitcode \
+           OTHER_CFLAGS="-fembed-bitcode -O3 -fomit-frame-pointer" \
+           CONFIGURATION_BUILD_DIR=${CONF_BUILD_DIR}  \
+           -quiet