Added mkspecs for iOS.

Modified common MacOS gcc config for iOS compatibility. Added iOS
mkspecs for iOS devices and simulator using G++, LLVM-G++ or CLANG
compilers.

Change-Id: If0a0b1a3ce4e0dc4db319a315e227a9d31549399
Reviewed-by: Morten Johan Sørvig <morten.sorvig@nokia.com>
Reviewed-by: Lars Knoll <lars.knoll@nokia.com>

1 files changed, 84 insertions, 0 deletions

diff --git a/mkspecs/common/ios/arch.conf b/mkspecs/common/ios/arch.conf
new file mode 100644
index 0000000000..4ad96874fe
--- /dev/null
+++ b/mkspecs/common/ios/arch.conf
@@ -0,0 +1,84 @@
+#
+# Helper to set CPU architecture flags for iOS configurations
+#
+# Depends on:
+#
+#   QMAKE_IPHONEOS_DEPLOYMENT_TARGET - set in mkspecs/common/ios/versions.conf
+#
+# Note:
+#
+#   Must be included after load(qt_config) in mkspec for auto-detection based
+#   on GL/ES version (GL/ES 2.x implies armv7 on iOS).
+#
+
+# Target architecture for iOS devices (armv6, armv7 or leave blank for default)
+QMAKE_IOS_TARGET_ARCH   =
+
+###########################################################################
+
+# Device?
+!*simulator* {
+    # Let mkspec specify archictecture
+    *armv6*: QMAKE_IOS_TARGET_ARCH = armv6
+    else:*armv7*: QMAKE_IOS_TARGET_ARCH = armv7
+
+    # ARMv7 architecture device (see below) is required for OpenGL/ES 2.x
+    isEmpty(QMAKE_IOS_TARGET_ARCH):contains(QT_CONFIG, opengles2): QMAKE_IOS_TARGET_ARCH = armv7
+
+    # No target architecture specified?
+    isEmpty(QMAKE_IOS_TARGET_ARCH) {
+        # iOS versions < 4.3 can be armv6 or armv7, so need armv6 for max. compatibility,
+        # assume that building for OpenGL/ES 1.x is targeting armv6
+        lessThan(QMAKE_IPHONEOS_DEPLOYMENT_TARGET, "4.3")|contains(QT_CONFIG, opengles1) {
+            QMAKE_IOS_TARGET_ARCH = armv6
+        } else: QMAKE_IOS_TARGET_ARCH = armv7
+    }
+
+    # Samsung S5PC100, Apple A4, A5, A5X
+    equals(QMAKE_IOS_TARGET_ARCH, "armv7") {
+        # iOS CPU architecture (armv7)
+        QMAKE_IOS_ARM_ARCH = __ARM_ARCH_7__
+
+        # Thumb2 instructions
+        QMAKE_IOS_ARM_FLAGS = -mthumb
+        QMAKE_IOS_ARM_ARCH += __MARM_THUMB__
+
+        # NEON instructions
+        *-g++*: QMAKE_IOS_ARM_FLAGS += -mfloat-abi=softfp -mfpu=neon
+        QMAKE_IOS_ARM_ARCH += __ARM_NEON__
+    } else {
+        # Samsung S5L8900
+        if(equals(QMAKE_IOS_TARGET_ARCH, "armv6")) {
+            # iOS CPU architecture (armv6)
+            QMAKE_IOS_ARM_ARCH = __ARM_ARCH_6__
+
+            # ARM instructions
+            QMAKE_IOS_ARM_FLAGS = -marm -mcpu=arm1176jzf-s
+            !*clang*: QMAKE_IOS_ARM_FLAGS += -march=armv6
+        } else {
+            # Unsupported architecture
+            error("Invalid iOS target $${QMAKE_IOS_TARGET_ARCH}! Edit mkspecs/common/ios/arch.conf to specify target architecture.")
+        }
+    }
+# Simulator is i386 only
+} else: QMAKE_IOS_TARGET_ARCH = i386
+
+# iOS architecture build flags
+QMAKE_IOS_ARCH_FLAGS    = -arch $$QMAKE_IOS_TARGET_ARCH
+QMAKE_CFLAGS           += $$QMAKE_IOS_ARCH_FLAGS
+QMAKE_CXXFLAGS         += $$QMAKE_IOS_ARCH_FLAGS
+QMAKE_OBJECTIVE_CFLAGS += $$QMAKE_IOS_ARCH_FLAGS
+QMAKE_LFLAGS           += $$QMAKE_IOS_ARCH_FLAGS
+QMAKE_IOS_TARGET_ARCH   =
+QMAKE_IOS_ARCH_FLAGS    =
+
+# Architecture specific defines/flags
+!*simulator* {
+    DEFINES            += $$QMAKE_IOS_ARM_ARCH
+    QMAKE_IOS_ARM_ARCH  =
+
+    QMAKE_CFLAGS       += $$QMAKE_IOS_ARM_FLAGS
+    QMAKE_CXXFLAGS     += $$QMAKE_IOS_ARM_FLAGS
+    QMAKE_OBJECTIVE_CFLAGS += $$QMAKE_IOS_ARM_FLAGS
+    QMAKE_IOS_ARM_FLAGS =
+}