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-rw-r--r--Makefile.config.in6
-rw-r--r--Makefile.rules21
-rw-r--r--autoconf/configure.ac18
-rw-r--r--lib/CompilerDriver/Makefile17
4 files changed, 52 insertions, 10 deletions
diff --git a/Makefile.config.in b/Makefile.config.in
index 44d7416e4f..e715902814 100644
--- a/Makefile.config.in
+++ b/Makefile.config.in
@@ -297,3 +297,9 @@ endif
# Location of the plugin header file for gold.
BINUTILS_INCDIR := @BINUTILS_INCDIR@
+
+# When ENABLE_LLVMC_DYNAMIC is enabled, LLVMC will link libCompilerDriver
+# dynamically. This is needed to make dynamic plugins work on some targets
+# (Windows).
+ENABLE_LLVMC_DYNAMIC = 0
+#@ENABLE_LLVMC_DYNAMIC@
diff --git a/Makefile.rules b/Makefile.rules
index 9787d5fe0b..3ae2db8916 100644
--- a/Makefile.rules
+++ b/Makefile.rules
@@ -200,17 +200,20 @@ ifdef LLVMC_PLUGIN
LIBRARYNAME := $(patsubst %,plugin_llvmc_%,$(LLVMC_PLUGIN))
CPP.Flags += -DLLVMC_PLUGIN_NAME=$(LLVMC_PLUGIN)
REQUIRES_EH := 1
-LD.Flags += -lCompilerDriver
+
+ifeq ($(ENABLE_LLVMC_DYNAMIC),1)
+ LD.Flags += -lCompilerDriver
+endif
# Build a dynamic library if the user runs `make` directly from the plugin
# directory.
ifndef LLVMC_BUILTIN_PLUGIN
-LOADABLE_MODULE = 1
+ LOADABLE_MODULE = 1
endif
# TableGen stuff...
ifneq ($(BUILT_SOURCES),)
-LLVMC_BUILD_AUTOGENERATED_INC=1
+ LLVMC_BUILD_AUTOGENERATED_INC=1
endif
endif # LLVMC_PLUGIN
@@ -218,8 +221,15 @@ endif # LLVMC_PLUGIN
ifdef LLVMC_BASED_DRIVER
TOOLNAME = $(LLVMC_BASED_DRIVER)
+
REQUIRES_EH := 1
-LD.Flags += -lCompilerDriver
+
+ifeq ($(ENABLE_LLVMC_DYNAMIC),1)
+ LD.Flags += -lCompilerDriver
+else
+ LLVMLIBS = CompilerDriver.a
+ LINK_COMPONENTS = support system
+endif
# Preprocessor magic that generates references to static variables in built-in
# plugins.
@@ -502,8 +512,7 @@ ifeq ($(OS),Darwin)
else
ifeq ($(OS),Cygwin)
SharedLinkOptions=-shared -nostdlib -Wl,--export-all-symbols \
- -Wl,--enable-auto-import -Wl,--enable-auto-image-base \
- -Wl,--enable-runtime-pseudo-relocs
+ -Wl,--enable-auto-import -Wl,--enable-auto-image-base
else
SharedLinkOptions=-shared
endif
diff --git a/autoconf/configure.ac b/autoconf/configure.ac
index 0ed3a26f6c..bb9c9d84b0 100644
--- a/autoconf/configure.ac
+++ b/autoconf/configure.ac
@@ -593,6 +593,24 @@ case "$enableval" in
*) AC_MSG_ERROR([Invalid setting for --enable-libffi. Use "yes" or "no"]) ;;
esac
+dnl Only Windows needs dynamic libCompilerDriver to support plugins.
+if test "$llvm_cv_os_type" = "Win32" ; then
+ llvmc_dynamic="yes"
+else
+ llvmc_dynamic="no"
+fi
+
+dnl --enable-llvmc-dynamic : should LLVMC link libCompilerDriver dynamically?
+AC_ARG_ENABLE(llvmc-dynamic,AS_HELP_STRING(
+--enable-llvmc-dynamic,
+[Link LLVMC dynamically (default is NO, unless on Win32)]),,
+enableval=$llvmc_dynamic)
+if test ${enableval} = "no"; then
+ AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[]])
+else
+ AC_SUBST(ENABLE_LLVMC_DYNAMIC,[[ENABLE_LLVMC_DYNAMIC=1]])
+fi
+
dnl===-----------------------------------------------------------------------===
dnl===
dnl=== SECTION 4: Check for programs we need and that they are the right version
diff --git a/lib/CompilerDriver/Makefile b/lib/CompilerDriver/Makefile
index 773eb5e8e1..6084e88518 100644
--- a/lib/CompilerDriver/Makefile
+++ b/lib/CompilerDriver/Makefile
@@ -12,18 +12,26 @@ LEVEL = ../..
# We don't want this library to appear in `llvm-config --libs` output, so its
# name doesn't start with "LLVM".
-LIBRARYNAME = libCompilerDriver
-LLVMLIBS = LLVMSupport.a LLVMSystem.a
-LOADABLE_MODULE := 1
+ifeq ($(ENABLE_LLVMC_DYNAMIC),1)
+ LIBRARYNAME = libCompilerDriver
+ LLVMLIBS = LLVMSupport.a LLVMSystem.a
+ LOADABLE_MODULE := 1
+else
+ LIBRARYNAME = CompilerDriver
+ LINK_COMPONENTS = support system
+endif
+
REQUIRES_EH := 1
include $(LEVEL)/Makefile.common
+# Copy libCompilerDriver to the bin dir so that llvmc can find it.
+ifeq ($(ENABLE_LLVMC_DYNAMIC),1)
+
FullLibName = $(LIBRARYNAME)$(SHLIBEXT)
all-local:: $(ToolDir)/$(FullLibName)
-# Copy the library to the bin dir so that llvmc can find it.
$(ToolDir)/$(FullLibName): $(LibDir)/$(FullLibName) $(ToolDir)/.dir
$(Echo) Copying $(BuildMode) Shared Library $(FullLibName) to $@
-$(Verb) $(CP) $< $@
@@ -32,3 +40,4 @@ clean-local::
$(Echo) Removing $(BuildMode) Shared Library $(FullLibName) \
from $(ToolDir)
-$(Verb) $(RM) -f $(ToolDir)/$(FullLibName)
+endif