From 315b88d0cfe21a71df07123f49ec881cb731673a Mon Sep 17 00:00:00 2001
From: Greg Clayton <gclayton@apple.com>
Date: Tue, 2 Jun 2015 21:38:10 +0000
Subject: [PATCH] Added the ability for the "make" command to take a triple:

% cd lldb/test/lang/c/array_types
% make TRIPLE=x86_64-apple-ios
% make clean
% make TRIPLE=x86_64-apple-ios8.1
% make clean
% make TRIPLE=armv7-apple-ios
% make clean
% make TRIPLE=armv7-apple-ios8.1
% make clean

The TRIPLE variable will automatically set the following variables:
    SDKROOT if it isn't specified manually
    ARCH will be set to the architecture from the triple
    CFLAGS will include the extras needed for the triple which are set in TRIPLE_CFLAGS
    TRIPLE_VENDOR set to the triple vendor ("apple" in the above cases)
    TRIPLE_OS set to the triple OS ("ios" in the above cases)
    TRIPLE_VERSION set to the version that was specified, or automatically set to the SDK version if it is missing

This allows you to change directory into any test case on MacOSX and quickly build for desktop:

% make

iOS simulator:

% make TRIPLE=x86_64-apple-ios

or iOS device:

% make TRIPLE=armv7-apple-ios

llvm-svn: 238869
---
 lldb/test/make/Makefile.rules | 39 ++++++++++++++++++++++++++++++++++++---
 1 file changed, 36 insertions(+), 3 deletions(-)

diff --git a/lldb/test/make/Makefile.rules b/lldb/test/make/Makefile.rules
index fcb67ad..c512e15 100644
--- a/lldb/test/make/Makefile.rules
+++ b/lldb/test/make/Makefile.rules
@@ -30,6 +30,39 @@
 THIS_FILE_DIR := $(shell dirname $(realpath $(lastword $(MAKEFILE_LIST))))/
 LLDB_BASE_DIR := $(THIS_FILE_DIR)../../
 
+
+#----------------------------------------------------------------------
+# If TRIPLE is not defined try to set the ARCH, CC, CFLAGS, and more
+# from the triple alone
+#----------------------------------------------------------------------
+TRIPLE_CFLAGS :=
+ifneq "$(TRIPLE)" ""
+	triple_space = $(subst -, ,$(TRIPLE))
+	ARCH =$(word 1, $(triple_space))
+	TRIPLE_VENDOR =$(word 2, $(triple_space))
+	triple_os_and_version =$(shell echo $(word 3, $(triple_space)) | sed -e 's/\(.*\)\([0-9]\.[0-9]\).*/\1 \2/')
+	TRIPLE_OS =$(word 1, $(triple_os_and_version))
+	TRIPLE_VERSION =$(word 2, $(triple_os_and_version))
+	ifeq "$(TRIPLE_VERSION)" ""
+		TRIPLE_VERSION =$(shell echo $(sdk_basename) | sed -e 's/.*\([0-9]\.[0-9]\).*/\1/')
+	endif
+	ifeq "$(TRIPLE_VENDOR)" "apple"
+		ifeq "$(TRIPLE_OS)" "ios"
+		    ifeq "$(SDKROOT)" ""
+				# Set SDKROOT if it wasn't set
+				ifneq (,$(findstring arm,$(ARCH)))
+					SDKROOT = $(shell xcrun --sdk iphoneos --show-sdk-path)
+					TRIPLE_CFLAGS :=-mios-version-min=$(TRIPLE_VERSION) -isysroot "$(SDKROOT)"
+				else
+					SDKROOT = $(shell xcrun --sdk iphonesimulator --show-sdk-path)
+					TRIPLE_CFLAGS :=-mios-simulator-version-min=$(TRIPLE_VERSION) -isysroot "$(SDKROOT)"
+				endif
+			endif
+			sdk_basename = $(notdir $(SDKROOT))
+		endif
+	endif
+endif
+
 #----------------------------------------------------------------------
 # If OS is not defined, use 'uname -s' to determine the OS name.
 #
@@ -140,13 +173,13 @@ ifeq "$(OS)" "Darwin"
 else
 	CFLAGS += $(ARCHFLAG)$(ARCH) $(FRAMEWORK_INCLUDES) $(CFLAGS_EXTRAS) -I$(LLDB_BASE_DIR)include
 endif
-CFLAGS += -include $(THIS_FILE_DIR)test_common.h
+CFLAGS += -include $(THIS_FILE_DIR)test_common.h $(TRIPLE_CFLAGS)
 
 # Use this one if you want to build one part of the result without debug information:
 ifeq "$(OS)" "Darwin"
-	CFLAGS_NO_DEBUG = -O0 $(ARCHFLAG) $(ARCH) $(FRAMEWORK_INCLUDES) $(CFLAGS_EXTRAS)
+	CFLAGS_NO_DEBUG = -O0 $(ARCHFLAG) $(ARCH) $(FRAMEWORK_INCLUDES) $(CFLAGS_EXTRAS) $(TRIPLE_CFLAGS)
 else
-	CFLAGS_NO_DEBUG = -O0 $(ARCHFLAG)$(ARCH) $(FRAMEWORK_INCLUDES) $(CFLAGS_EXTRAS)
+	CFLAGS_NO_DEBUG = -O0 $(ARCHFLAG)$(ARCH) $(FRAMEWORK_INCLUDES) $(CFLAGS_EXTRAS) $(TRIPLE_CFLAGS)
 endif
 
 CXXFLAGS += -std=c++11
-- 
2.7.4