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Implement the LOADABLE_MODULE option when building a shared library. This

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passes the -module option on the libtool command line to ensure that the
shared library being built can be dlopened and dlsym can work on that
module. LOADABLE_MODULE should be sent only in conjunction with the
SHARED_LIBRARY directive. It should generally be used for any module that
is intended to be the target of an LLVM -load option. Note that loadable
modules will not have the lib prefix but otherwise look like shared
libraries. This is per the libtool recommendations and prevents these
special shared libraries from being linked in via -l option to the linker.


git-svn-id: https://llvm.org/svn/llvm-project/llvm/trunk@19454 91177308-0d34-0410-b5e6-96231b3b80d8
This commit is contained in:
Reid Spencer 2005-01-11 04:31:07 +00:00
parent a8d9cc8705
commit 492c2935be
1 changed files with 13 additions and 4 deletions
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17
Makefile.rules
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@ -264,11 +264,16 @@ LLVMGXXWITHPATH := PATH="$(LLVMToolDir):$(PATH)" $(LLVMGXX)
# Adjust to user's request
#--------------------------------------------------------------------
# Adjust LIBTOOL flags for shared libraries, or not.
ifndef SHARED_LIBRARY
LibTool.Flags += --tag=disable-shared
else
# Adjust LD.Flags and Libtool.Flags depending on the kind of library that is
# to be built. Note that if LOADABLE_MODULE is specified then the resulting
# shared library can be opened with dlopen
ifdef SHARED_LIBRARY
LD.Flags += -rpath $(LibDir)
ifdef LOADABLE_MODULE
LD.Flags += -module
endif
else
LibTool.Flags += --tag=disable-shared
endif
ifdef TOOL_VERBOSE
@ -571,7 +576,11 @@ ifdef LIBRARYNAME
# Make sure there isn't any extranous whitespace on the LIBRARYNAME option
LIBRARYNAME := $(strip $(LIBRARYNAME))
ifdef LOADABLE_MODULE
LibName.LA := $(LibDir)/$(LIBRARYNAME).la
else
LibName.LA := $(LibDir)/lib$(LIBRARYNAME).la
endif
LibName.A := $(LibDir)/lib$(LIBRARYNAME).a
LibName.O := $(LibDir)/$(LIBRARYNAME).o
LibName.BCA:= $(LibDir)/lib$(LIBRARYNAME).bca