[Patch 3/4] EmulatorPkg/Unix/Host: Fix XCODE5 IA32/X64 build failure

["Michael D Kinney" <michael.d.kinney@intel.com>]

https://bugzilla.tianocore.org/show_bug.cgi?id=2046

* Clean up XCODE5 IA32 [BuildOptions] and fix IA32
  X11 include path.
* Add -DEFIAPI=__attribute__((ms_abi)) to X64 XCODE5
  [BuildOptions]
* Use -target x86_64-apple-darwin for X64 XCODE5
  [BuildOptions]
* Add Wl,-no_pie to X64 XCODE5 [BuildOptions]
* Address function type mismatch reported by XCODE5
  in reverse gasket callback between UEFI ABI and
  MacOS ABI.  Use a UINTN to pass function address
  to assembly code.

Cc: Jordan Justen <jordan.l.justen@intel.com>
Cc: Andrew Fish <afish@apple.com>
Cc: Ray Ni <ray.ni@intel.com>
Signed-off-by: Michael D Kinney <michael.d.kinney@intel.com>
---
 EmulatorPkg/Unix/Host/EmuThunk.c | 4 ++--
 EmulatorPkg/Unix/Host/Gasket.h   | 4 ++--
 EmulatorPkg/Unix/Host/Host.inf   | 8 ++++----
 EmulatorPkg/Unix/Host/Pthreads.c | 4 ++--
 4 files changed, 10 insertions(+), 10 deletions(-)

diff --git a/EmulatorPkg/Unix/Host/EmuThunk.c b/EmulatorPkg/Unix/Host/EmuThunk.c
index 1c261a63cc..1e9dc99187 100644
--- a/EmulatorPkg/Unix/Host/EmuThunk.c
+++ b/EmulatorPkg/Unix/Host/EmuThunk.c
@@ -30,7 +30,7 @@ SPDX-License-Identifier: BSD-2-Clause-Patent
 
 int settimer_initialized;
 struct timeval settimer_timeval;
-void (*settimer_callback)(UINT64 delta);
+UINTN  settimer_callback = 0;
 
 BOOLEAN gEmulatorInterruptEnabled = FALSE;
 
@@ -194,7 +194,7 @@ SecSetTimer (
   if (setitimer (ITIMER_REAL, &timerval, NULL) != 0) {
     printf ("SetTimer: setitimer error %s\n", strerror (errno));
   }
-  settimer_callback = CallBack;
+  settimer_callback = (UINTN)CallBack;
 }
 
 
diff --git a/EmulatorPkg/Unix/Host/Gasket.h b/EmulatorPkg/Unix/Host/Gasket.h
index e66f334960..e082397d23 100644
--- a/EmulatorPkg/Unix/Host/Gasket.h
+++ b/EmulatorPkg/Unix/Host/Gasket.h
@@ -1,7 +1,7 @@
 /** @file
 
   Copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
-  Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+  Copyright (c) 2011 - 2019, Intel Corporation. All rights reserved.<BR>
 
   SPDX-License-Identifier: BSD-2-Clause-Patent
 
@@ -195,7 +195,7 @@ void
 
 UINTN
 ReverseGasketUint64 (
-  CALL_BACK CallBack,
+  UINTN  CallBack,
   UINT64 a
   );
 
diff --git a/EmulatorPkg/Unix/Host/Host.inf b/EmulatorPkg/Unix/Host/Host.inf
index efe8a2b5e5..ca4294249b 100644
--- a/EmulatorPkg/Unix/Host/Host.inf
+++ b/EmulatorPkg/Unix/Host/Host.inf
@@ -2,7 +2,7 @@
 # Entry Point of Emu Emulator
 #
 # Main executable file of Unix Emulator that loads PEI core after initialization finished.
-# Copyright (c) 2008 - 2018, Intel Corporation. All rights reserved.<BR>
+# Copyright (c) 2008 - 2019, Intel Corporation. All rights reserved.<BR>
 # Portions copyright (c) 2008 - 2011, Apple Inc. All rights reserved.<BR>
 #
 #  SPDX-License-Identifier: BSD-2-Clause-Patent
@@ -132,11 +132,11 @@ [BuildOptions]
 # Need to do this link via gcc and not ld as the pathing to libraries changes from OS version to OS version
 #
    XCODE:*_*_IA32_DLINK_PATH == gcc
-   XCODE:*_*_IA32_CC_FLAGS == -arch i386 -O0 -g -include $(DEST_DIR_DEBUG)/AutoGen.h -c -fshort-wchar -fno-strict-aliasing
+   XCODE:*_*_IA32_CC_FLAGS = -I$(WORKSPACE)/EmulatorPkg/Unix/Host/X11IncludeHack
    XCODE:*_*_IA32_DLINK_FLAGS == -arch i386 -o $(BIN_DIR)/Host -L/usr/X11R6/lib -lXext -lX11 -framework Carbon
    XCODE:*_*_IA32_ASM_FLAGS == -arch i386 -g
 
    XCODE:*_*_X64_DLINK_PATH == gcc
-   XCODE:*_*_X64_DLINK_FLAGS == -o $(BIN_DIR)/Host -L/usr/X11R6/lib -lXext -lX11 -framework Carbon
+   XCODE:*_*_X64_DLINK_FLAGS == -L/usr/X11R6/lib -lXext -lX11 -framework Carbon -Wl,-no_pie
    XCODE:*_*_X64_ASM_FLAGS == -g
-   XCODE:*_*_X64_CC_FLAGS = -I$(WORKSPACE)/EmulatorPkg/Unix/Host/X11IncludeHack
+   XCODE:*_*_X64_CC_FLAGS = -target x86_64-apple-darwin -I$(WORKSPACE)/EmulatorPkg/Unix/Host/X11IncludeHack "-DEFIAPI=__attribute__((ms_abi))"
diff --git a/EmulatorPkg/Unix/Host/Pthreads.c b/EmulatorPkg/Unix/Host/Pthreads.c
index 7c71a2da4f..f07bcfce66 100644
--- a/EmulatorPkg/Unix/Host/Pthreads.c
+++ b/EmulatorPkg/Unix/Host/Pthreads.c
@@ -2,7 +2,7 @@
  POSIX Pthreads to emulate APs and implement threads
 
 Copyright (c) 2011, Apple Inc. All rights reserved.
-Copyright (c) 2011, Intel Corporation. All rights reserved.<BR>
+Copyright (c) 2011 - 2019, Intel Corporation. All rights reserved.<BR>
 
 SPDX-License-Identifier: BSD-2-Clause-Patent
 
@@ -109,7 +109,7 @@ SecFakePthreadStart (
   // This is a great example of how all problems in computer
   // science can be solved by adding another level of indirection
   //
- return  (VOID *)ReverseGasketUint64 ((CALL_BACK)Start, (UINTN)Context);
+ return  (VOID *)ReverseGasketUint64 ((UINTN)Start, (UINTN)Context);
 }
 
 UINTN
-- 
2.21.0.windows.1