[Embtk]: Give ability to specify default target ABI at configure time

Signed-off-by: Abdoulaye Walsimou Gaye <awg@embtoolkit.org>
(cherry picked from commit 6ab8513df36438aa2c16facc94f306891446e061)

9 files changed, 61 insertions, 1 deletions

diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 118bf9488a..13baa3e492 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -485,6 +485,14 @@ if test "x$with_default_hash_style" != "x" ; then
     [Default hash-style to use to all linker invocations.])
 fi
 
+dnl Default cpu (-mabi=abi) to use to all compiler invocations
+AC_ARG_WITH(default-abi,
+  AS_HELP_STRING([--with-default-abi],
+  [Add by default -mabi=abi (if --with-default-abi=abi) to all compiler invocations.]),,
+  with_default_abi="")
+AC_DEFINE_UNQUOTED([LLVM_DEFAULT_TARGET_ABI],"$with_default_abi",
+  [Add by default -mabi=abi to all compiler invocations.])
+
 dnl Check for the endianness of the target
 AC_C_BIGENDIAN(AC_SUBST([ENDIAN],[big]),AC_SUBST([ENDIAN],[little]))
 
diff --git a/configure b/configure
index 46d2a78483..afef61aed8 100755
--- a/configure
+++ b/configure
@@ -1465,6 +1465,8 @@ Optional Packages:
                           case of hard float.
 
 Default hash-style to use to all linker invocations: gnu
+  --with-default-abi      Add by default -mabi=abi (if --with-default-abi=abi)
+                          to all compiler invocations.
   --with-optimize-option  Select the compiler options to use for optimized
                           builds
   --with-extra-options    Specify additional options to compile LLVM with
@@ -4149,6 +4151,20 @@ _ACEOF
 fi
 
 
+# Check whether --with-default-abi was given.
+if test "${with_default_abi+set}" = set; then
+  withval=$with_default_abi;
+else
+  with_default_abi=""
+fi
+
+
+cat >>confdefs.h <<_ACEOF
+#define LLVM_DEFAULT_TARGET_ABI "$with_default_abi"
+_ACEOF
+
+
+
 
 { echo "$as_me:$LINENO: checking for grep that handles long lines and -e" >&5
 echo $ECHO_N "checking for grep that handles long lines and -e... $ECHO_C" >&6; }
@@ -10611,7 +10627,7 @@ else
   lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
   lt_status=$lt_dlunknown
   cat > conftest.$ac_ext <<EOF
-#line 10614 "configure"
+#line 10630 "configure"
 #include "confdefs.h"
 
 #if HAVE_DLFCN_H
diff --git a/include/llvm/Config/config.h.cmake b/include/llvm/Config/config.h.cmake
index ac7a56e6cd..397df37a07 100644
--- a/include/llvm/Config/config.h.cmake
+++ b/include/llvm/Config/config.h.cmake
@@ -570,6 +570,9 @@
 /* Installation directory for data files */
 #cmakedefine LLVM_DATADIR "${LLVM_DATADIR}"
 
+/* Add by default -mabi=abi to all compiler invocations. */
+#cmakedefine LLVM_DEFAULT_TARGET_ABI "${LLVM_DEFAULT_TARGET_ABI}"
+
 /* Default float abi to use to all compiler invocations. */
 #cmakedefine LLVM_DEFAULT_TARGET_FLOAT "${LLVM_DEFAULT_TARGET_FLOAT}"
 
diff --git a/include/llvm/Config/config.h.in b/include/llvm/Config/config.h.in
index 6092ec39b6..a5bb4b4abd 100644
--- a/include/llvm/Config/config.h.in
+++ b/include/llvm/Config/config.h.in
@@ -575,6 +575,9 @@
 /* Installation directory for data files */
 #undef LLVM_DATADIR
 
+/* Add by default -mabi=abi to all compiler invocations. */
+#undef LLVM_DEFAULT_TARGET_ABI
+
 /* Default float abi to use to all compiler invocations. */
 #undef LLVM_DEFAULT_TARGET_FLOAT
 
diff --git a/include/llvm/Config/llvm-config.h.cmake b/include/llvm/Config/llvm-config.h.cmake
index eb0b4a86c3..e03722486b 100644
--- a/include/llvm/Config/llvm-config.h.cmake
+++ b/include/llvm/Config/llvm-config.h.cmake
@@ -25,6 +25,9 @@
 /* Installation directory for data files */
 #cmakedefine LLVM_DATADIR "${LLVM_DATADIR}"
 
+/* Add by default -mabi=abi to all compiler invocations. */
+#cmakedefine LLVM_DEFAULT_TARGET_ABI "${LLVM_DEFAULT_TARGET_ABI}"
+
 /* Default float abi to use to all compiler invocations. */
 #cmakedefine LLVM_DEFAULT_TARGET_FLOAT "${LLVM_DEFAULT_TARGET_FLOAT}"
 
diff --git a/include/llvm/Config/llvm-config.h.in b/include/llvm/Config/llvm-config.h.in
index 607495ecc6..0b3f328310 100644
--- a/include/llvm/Config/llvm-config.h.in
+++ b/include/llvm/Config/llvm-config.h.in
@@ -25,6 +25,9 @@
 /* Installation directory for data files */
 #undef LLVM_DATADIR
 
+/* Add by default -mabi=abi to all compiler invocations. */
+#undef LLVM_DEFAULT_TARGET_ABI
+
 /* Default float abi to use to all compiler invocations. */
 #undef LLVM_DEFAULT_TARGET_FLOAT
 
diff --git a/include/llvm/Support/Host.h b/include/llvm/Support/Host.h
index 48bc93edb7..ab52671861 100644
--- a/include/llvm/Support/Host.h
+++ b/include/llvm/Support/Host.h
@@ -79,6 +79,14 @@ namespace sys {
   /// to generate by default code with a given hash-style and false otherwise.
   bool hasDefaultTargetHashStyle();
 
+  /// getDefaultTargetAbi() - Return the default target ABI for which the
+  /// compiler is configured to generate code for, or "" if empty.
+  std::string getDefaultTargetAbi();
+
+  /// hasDefaultTargetAbi() - Return true if the compiler was configured to
+  /// generate code for a given ABI and false otherwise.
+  bool hasDefaultTargetAbi();
+
   /// getProcessTriple() - Return an appropriate target triple for generating
   /// code to be loaded into the current process, e.g. when using the JIT.
   std::string getProcessTriple();
diff --git a/lib/Support/Unix/Host.inc b/lib/Support/Unix/Host.inc
index 5b55b4f0e9..28828eb83c 100644
--- a/lib/Support/Unix/Host.inc
+++ b/lib/Support/Unix/Host.inc
@@ -93,3 +93,11 @@ std::string sys::getDefaultTargetHashStyle() {
 bool sys::hasDefaultTargetHashStyle() {
   return getDefaultTargetHashStyle() != "";
 }
+
+std::string sys::getDefaultTargetAbi() {
+  return LLVM_DEFAULT_TARGET_ABI;
+}
+
+bool sys::hasDefaultTargetAbi() {
+  return getDefaultTargetAbi() != "";
+}
diff --git a/lib/Support/Windows/Host.inc b/lib/Support/Windows/Host.inc
index 5c8bcaaf0c..1933bf7e87 100644
--- a/lib/Support/Windows/Host.inc
+++ b/lib/Support/Windows/Host.inc
@@ -52,3 +52,11 @@ std::string sys::getDefaultTargetHashStyle() {
 bool sys::hasDefaultTargetHashStyle() {
   return getDefaultTargetHashStyle() != "";
 }
+
+std::string sys::getDefaultTargetAbi() {
+  return LLVM_DEFAULT_TARGET_ABI;
+}
+
+bool sys::hasDefaultTargetAbi() {
+  return getDefaultTargetAbi() != "";
+}