From 753f3265dafdcfeec07b561ca278524c35477583 Mon Sep 17 00:00:00 2001
From: Eric Christopher <echristo@apple.com>
Date: Mon, 30 Aug 2010 18:34:48 +0000
Subject: [PATCH] Fix LLVM target initialization to deal with sociopathic
 outside projects that like to randomly define things like "X86", regenerate
 autoconf bits and update cmake.
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Fixes PR7852.

Patch by Xerxes RÃ¥nby!


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@112499 91177308-0d34-0410-b5e6-96231b3b80d8
---
 autoconf/configure.ac                   | 14 ++++++++++----
 cmake/config-ix.cmake                   |  4 +++-
 configure                               | 24 ++++++++++++++++++------
 include/llvm-c/Target.h                 | 11 +++--------
 include/llvm/Config/config.h.cmake      | 16 +++++++++++-----
 include/llvm/Config/config.h.in         | 10 ++++++++--
 include/llvm/Config/llvm-config.h.cmake | 12 +++++++++---
 include/llvm/Config/llvm-config.h.in    | 10 ++++++++--
 include/llvm/Target/TargetSelect.h      | 20 +++++---------------
 9 files changed, 75 insertions(+), 46 deletions(-)

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 5a8a5f99fb1..e8020e4d0ca 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -596,11 +596,17 @@ AC_SUBST(TARGETS_TO_BUILD,$TARGETS_TO_BUILD)
 # If so, define LLVM_NATIVE_ARCH to that LLVM target.
 for a_target in $TARGETS_TO_BUILD; do
   if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
-    LLVM_NATIVE_ARCHTARGET="${LLVM_NATIVE_ARCH}Target"
-    AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCHNAME,$LLVM_NATIVE_ARCH,
-      [Short LLVM architecture name for the native architecture, if available])
-    AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH,$LLVM_NATIVE_ARCHTARGET,
+    AC_DEFINE_UNQUOTED(LLVM_NATIVE_ARCH, $LLVM_NATIVE_ARCH,
       [LLVM architecture name for the native architecture, if available])
+    LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
+    LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
+    LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
+    AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGET, $LLVM_NATIVE_TARGET,
+      [LLVM name for the native Target init function, if available])
+    AC_DEFINE_UNQUOTED(LLVM_NATIVE_TARGETINFO, $LLVM_NATIVE_TARGETINFO,
+      [LLVM name for the native TargetInfo init function, if available])
+    AC_DEFINE_UNQUOTED(LLVM_NATIVE_ASMPRINTER, $LLVM_NATIVE_ASMPRINTER,
+      [LLVM name for the native AsmPrinter init function, if available])
   fi
 done
 
diff --git a/cmake/config-ix.cmake b/cmake/config-ix.cmake
index 3427ee9c0c0..56e8d837366 100755
--- a/cmake/config-ix.cmake
+++ b/cmake/config-ix.cmake
@@ -207,7 +207,9 @@ else ()
 endif ()
   
 if (LLVM_NATIVE_ARCH)
-  set(LLVM_NATIVE_ARCHNAME ${LLVM_NATIVE_ARCH})
+  set(LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target)
+  set(LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo)
+  set(LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter)
   list(FIND LLVM_TARGETS_TO_BUILD ${LLVM_NATIVE_ARCH} NATIVE_ARCH_IDX)
   if (NATIVE_ARCH_IDX EQUAL -1)
     message(STATUS 
diff --git a/configure b/configure
index 948e7ccd936..f53a7b643de 100755
--- a/configure
+++ b/configure
@@ -1414,8 +1414,8 @@ Optional Features:
   --enable-targets        Build specific host targets: all or
                           target1,target2,... Valid targets are: host, x86,
                           x86_64, sparc, powerpc, alpha, arm, mips, spu,
-                          pic16, xcore, msp430, systemz, blackfin, cbe, 
-                          and cpp (default=all)
+                          pic16, xcore, msp430, systemz, blackfin, cbe, and
+                          cpp (default=all)
   --enable-cbe-printf-a   Enable C Backend output with hex floating point via
                           %a (default is YES)
   --enable-bindings       Build specific language bindings:
@@ -5007,15 +5007,27 @@ TARGETS_TO_BUILD=$TARGETS_TO_BUILD
 # If so, define LLVM_NATIVE_ARCH to that LLVM target.
 for a_target in $TARGETS_TO_BUILD; do
   if test "$a_target" = "$LLVM_NATIVE_ARCH"; then
-    LLVM_NATIVE_ARCHTARGET="${LLVM_NATIVE_ARCH}Target"
 
 cat >>confdefs.h <<_ACEOF
-#define LLVM_NATIVE_ARCHNAME $LLVM_NATIVE_ARCH
+#define LLVM_NATIVE_ARCH $LLVM_NATIVE_ARCH
 _ACEOF
 
+    LLVM_NATIVE_TARGET="LLVMInitialize${LLVM_NATIVE_ARCH}Target"
+    LLVM_NATIVE_TARGETINFO="LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo"
+    LLVM_NATIVE_ASMPRINTER="LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter"
 
 cat >>confdefs.h <<_ACEOF
-#define LLVM_NATIVE_ARCH $LLVM_NATIVE_ARCHTARGET
+#define LLVM_NATIVE_TARGET $LLVM_NATIVE_TARGET
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define LLVM_NATIVE_TARGETINFO $LLVM_NATIVE_TARGETINFO
+_ACEOF
+
+
+cat >>confdefs.h <<_ACEOF
+#define LLVM_NATIVE_ASMPRINTER $LLVM_NATIVE_ASMPRINTER
 _ACEOF
 
   fi
@@ -11377,7 +11389,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 11381 "configure"
+#line 11392 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
diff --git a/include/llvm-c/Target.h b/include/llvm-c/Target.h
index 29bd6fec9a4..2cd15c3fa30 100644
--- a/include/llvm-c/Target.h
+++ b/include/llvm-c/Target.h
@@ -64,15 +64,10 @@ static inline void LLVMInitializeAllTargets(void) {
     for JIT applications to ensure that the target gets linked in correctly. */
 static inline LLVMBool LLVMInitializeNativeTarget(void) {
   /* If we have a native target, initialize it to ensure it is linked in. */
-#ifdef LLVM_NATIVE_ARCH
-#define DoInit2(TARG) \
-  LLVMInitialize ## TARG ## Info ();          \
-  LLVMInitialize ## TARG ()
-#define DoInit(T) DoInit2(T)
-  DoInit(LLVM_NATIVE_ARCH);
+#ifdef LLVM_NATIVE_TARGET
+  LLVM_NATIVE_TARGETINFO();
+  LLVM_NATIVE_TARGET();
   return 0;
-#undef DoInit
-#undef DoInit2
 #else
   return 1;
 #endif
diff --git a/include/llvm/Config/config.h.cmake b/include/llvm/Config/config.h.cmake
index 81e6ab57486..e8feabffdaf 100644
--- a/include/llvm/Config/config.h.cmake
+++ b/include/llvm/Config/config.h.cmake
@@ -626,10 +626,16 @@
 /* Define to a function implementing strdup */
 #cmakedefine strdup ${strdup}
 
-/* Native LLVM architecture */
-#cmakedefine LLVM_NATIVE_ARCH ${LLVM_NATIVE_ARCH}Target
-
-/* Native LLVM architecture, short name */
-#cmakedefine LLVM_NATIVE_ARCHNAME ${LLVM_NATIVE_ARCH}
+/* LLVM architecture name for the native architecture, if available */
+#cmakedefine LLVM_NATIVE_ARCH ${LLVM_NATIVE_ARCH}
+  
+/* LLVM name for the native Target init function, if available */
+#cmakedefine LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target
+ 
+/* LLVM name for the native TargetInfo init function, if available */
+#cmakedefine LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo
+ 
+/* LLVM name for the native AsmPrinter init function, if available */
+#cmakedefine LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter
 
 #endif
diff --git a/include/llvm/Config/config.h.in b/include/llvm/Config/config.h.in
index 911f9877bae..d62da1ab037 100644
--- a/include/llvm/Config/config.h.in
+++ b/include/llvm/Config/config.h.in
@@ -500,8 +500,14 @@
 /* LLVM architecture name for the native architecture, if available */
 #undef LLVM_NATIVE_ARCH
 
-/* Short LLVM architecture name for the native architecture, if available */
-#undef LLVM_NATIVE_ARCHNAME
+/* LLVM name for the native AsmPrinter init function, if available */
+#undef LLVM_NATIVE_ASMPRINTER
+
+/* LLVM name for the native Target init function, if available */
+#undef LLVM_NATIVE_TARGET
+
+/* LLVM name for the native TargetInfo init function, if available */
+#undef LLVM_NATIVE_TARGETINFO
 
 /* Define if this is Unixish platform */
 #undef LLVM_ON_UNIX
diff --git a/include/llvm/Config/llvm-config.h.cmake b/include/llvm/Config/llvm-config.h.cmake
index b68592a64a0..8469bcc6067 100644
--- a/include/llvm/Config/llvm-config.h.cmake
+++ b/include/llvm/Config/llvm-config.h.cmake
@@ -50,10 +50,16 @@
 #cmakedefine LLVM_MULTITHREADED
 
 /* LLVM architecture name for the native architecture, if available */
-#cmakedefine LLVM_NATIVE_ARCH ${LLVM_NATIVE_ARCH}Target
+#cmakedefine LLVM_NATIVE_ARCH ${LLVM_NATIVE_ARCH}
 
-/* Short LLVM architecture name for the native architecture, if available */
-#cmakedefine LLVM_NATIVE_ARCHNAME ${LLVM_NATIVE_ARCH}
+/* LLVM name for the native Target init function, if available */
+#cmakedefine LLVM_NATIVE_TARGET LLVMInitialize${LLVM_NATIVE_ARCH}Target
+
+/* LLVM name for the native TargetInfo init function, if available */
+#cmakedefine LLVM_NATIVE_TARGETINFO LLVMInitialize${LLVM_NATIVE_ARCH}TargetInfo
+
+/* LLVM name for the native AsmPrinter init function, if available */
+#cmakedefine LLVM_NATIVE_ASMPRINTER LLVMInitialize${LLVM_NATIVE_ARCH}AsmPrinter
 
 /* Define if this is Unixish platform */
 #cmakedefine LLVM_ON_UNIX
diff --git a/include/llvm/Config/llvm-config.h.in b/include/llvm/Config/llvm-config.h.in
index f35859ea041..e7a04ee91bb 100644
--- a/include/llvm/Config/llvm-config.h.in
+++ b/include/llvm/Config/llvm-config.h.in
@@ -52,8 +52,14 @@
 /* LLVM architecture name for the native architecture, if available */
 #undef LLVM_NATIVE_ARCH
 
-/* Short LLVM architecture name for the native architecture, if available */
-#undef LLVM_NATIVE_ARCHNAME
+/* LLVM name for the native Target init function, if available */
+#undef LLVM_NATIVE_TARGET
+
+/* LLVM name for the native TargetInfo init function, if available */
+#undef LLVM_NATIVE_TARGETINFO
+
+/* LLVM name for the native AsmPrinter init function, if available */
+#undef LLVM_NATIVE_ASMPRINTER
 
 /* Define if this is Unixish platform */
 #undef LLVM_ON_UNIX
diff --git a/include/llvm/Target/TargetSelect.h b/include/llvm/Target/TargetSelect.h
index ab6b62b74e6..1891f879741 100644
--- a/include/llvm/Target/TargetSelect.h
+++ b/include/llvm/Target/TargetSelect.h
@@ -100,15 +100,10 @@ namespace llvm {
   /// It is legal for a client to make multiple calls to this function.
   inline bool InitializeNativeTarget() {
   // If we have a native target, initialize it to ensure it is linked in.
-#ifdef LLVM_NATIVE_ARCHNAME
-#define DoInit2(TARG) \
-    LLVMInitialize ## TARG ## Info ();          \
-    LLVMInitialize ## TARG ()
-#define DoInit(T) DoInit2(T)
-    DoInit(LLVM_NATIVE_ARCH);
+#ifdef LLVM_NATIVE_TARGET
+    LLVM_NATIVE_TARGETINFO();
+    LLVM_NATIVE_TARGET();
     return false;
-#undef DoInit
-#undef DoInit2
 #else
     return true;
 #endif
@@ -118,14 +113,9 @@ namespace llvm {
   /// this function to initialize the native target asm printer.
   inline bool InitializeNativeTargetAsmPrinter() {
   // If we have a native target, initialize the corresponding asm printer.
-#ifdef LLVM_NATIVE_ARCH
-#define DoInit2(TARG) \
-    LLVMInitialize ## TARG ## AsmPrinter ();
-#define DoInit(T) DoInit2(T)
-    DoInit(LLVM_NATIVE_ARCHNAME);
+#ifdef LLVM_NATIVE_ASMPRINTER
+    LLVM_NATIVE_ASMPRINTER();
     return false;
-#undef DoInit
-#undef DoInit2
 #else
     return true;
 #endif
-- 
2.34.1