Return to Makefile.DLLs CVS log

Up to [local] / OpenXM_contrib / gc

Annotation of OpenXM_contrib/gc/Makefile.DLLs, Revision 1.1.1.1

1.1       maekawa     1: #-----------------------------------------------------------------------------#
                      2:
                      3: # Makefile.DLLs, version 0.4.
                      4:
                      5: # Contributed by Fergus Henderson.
                      6:
                      7: # This Makefile contains rules for creating DLLs on Windows using gnu-win32.
                      8:
                      9: #-----------------------------------------------------------------------------#
                     10:
                     11: # This rule creates a `.def' file, which lists the symbols that are exported
                     12: # from the DLL.  We use `nm' to get a list of all the exported text (`T')
                     13: # symbols and data symbols -- including uninitialized data (`B'),
                     14: # initialized data (`D'), read-only data (`R'), and common blocks (`C').
                     15: %.def: %.a
                     16:        echo EXPORTS > $@
                     17:        nm $< | grep '^........ [BCDRT] _' | sed 's/[^_]*_//' >> $@
                     18:
                     19: # We need to use macros to access global data:
                     20: # the user of the DLL must refer to `foo' as `(*__imp_foo)'.
                     21: # This rule creates a `_globals.h' file, which contains macros
                     22: # for doing this.
                     23:
                     24: SYM_PREFIX = $(firstword $(SYM_PREFIX-$*) $*)
                     25: DLL_MACRO = $(SYM_PREFIX)_USE_DLL
                     26: IMP_MACRO = $(SYM_PREFIX)_IMP
                     27: GLOBAL_MACRO = $(SYM_PREFIX)_GLOBAL
                     28:
                     29: %_globals.h: %.a
                     30:        echo "/* automatically generated by Makefile.DLLs */"   > $@
                     31:        echo "#if defined(__GNUC__) && defined(_WIN32) \\"      >> $@
                     32:        echo "  && defined($(DLL_MACRO))"                       >> $@
                     33:        echo "#  define $(IMP_MACRO)(name)      __imp_##name"   >> $@
                     34:        echo "#  define $(GLOBAL_MACRO)(name)   (*$(IMP_MACRO)(name))" >> $@
                     35:        echo "#else"                                            >> $@
                     36:        echo "#  define $(GLOBAL_MACRO)(name)   name"           >> $@
                     37:        echo "#endif"                                           >> $@
                     38:        echo ""                                                 >> $@
                     39:        for sym in `nm $< | grep '^........ [BCDR] _' | sed 's/[^_]*_//'`; do \
                     40:                echo "#define $$sym     $(GLOBAL_MACRO)($$sym)" >> $@; \
                     41:        done
                     42:
                     43: # This rule creates the export object file (`foo.exp') which contains the
                     44: # jump table array; this export object file becomes part of the DLL.
                     45: # This rule also creates the import library (`foo_dll.a') which contains small
                     46: # stubs for all the functions exported by the DLL which jump to them via the
                     47: # jump table.  Executables that will use the DLL must be linked against this
                     48: # stub library.
                     49: %.exp %_dll.a : %.def
                     50:        dlltool $(DLLTOOLFLAGS) $(DLLTOOLFLAGS-$*)              \
                     51:                --def $<                                        \
                     52:                --dllname $*.dll                                \
                     53:                --output-exp $*.exp                             \
                     54:                --output-lib $*_dll.a
                     55:
                     56: # The `sed' commands below are to convert DOS-style `C:\foo\bar'
                     57: # pathnames into Unix-style `//c/foo/bar' pathnames.
                     58: CYGWIN32_LIBS = $(shell echo                                   \
                     59:        -L`dirname \`gcc -print-file-name=libgcc.a |            \
                     60:        sed -e 's@^\\\\([A-Za-z]\\\\):@//\\\\1@g' -e 's@\\\\\\\\@/@g' \` ` \
                     61:        -L`dirname \`gcc -print-file-name=libcygwin.a | \
                     62:        sed -e 's@^\\\\([A-Za-z]\\\\):@//\\\\1@g' -e 's@\\\\\\\\@/@g' \` ` \
                     63:        -L`dirname \`gcc -print-file-name=libkernel32.a | \
                     64:        sed -e 's@^\\\\([A-Za-z]\\\\):@//\\\\1@g' -e 's@\\\\\\\\@/@g' \` ` \
                     65:        -lgcc -lcygwin -lkernel32 -lgcc)
                     66:
                     67: RELOCATABLE=yes
                     68:
                     69: ifeq "$(strip $(RELOCATABLE))" "yes"
                     70:
                     71: # to create relocatable DLLs, we need to do two passes
                     72: %.dll: %.exp %.a dll_fixup.o dll_init.o
                     73:        $(LD) $(LDFLAGS) $(LDFLAGS-$*) --dll -o $*.base                 \
                     74:                -e _dll_entry@12 dll_init.o                             \
                     75:                dll_fixup.o $*.exp $*.a                                 \
                     76:                $(LDLIBS) $(LDLIBS-$*)                                  \
                     77:                $(CYGWIN32_LIBS)
                     78:        $(LD) $(LDFLAGS) $(LDFLAGS-$*) --dll --base-file $*.base -o $@  \
                     79:                -e _dll_entry@12 dll_init.o                             \
                     80:                dll_fixup.o $*.exp $*.a                                 \
                     81:                $(LDLIBS) $(LDLIBS-$*)                                  \
                     82:                $(CYGWIN32_LIBS)
                     83:        rm -f $*.base
                     84: else
                     85:
                     86: %.dll: %.exp %.a dll_fixup.o dll_init.o
                     87:        $(LD) $(LDFLAGS) $(LDFLAGS-$*) --dll -o $@                      \
                     88:                -e _dll_entry@12 dll_init.o                             \
                     89:                dll_fixup.o $*.exp $*.a                                 \
                     90:                $(LDLIBS) $(LDLIBS-$*)                                  \
                     91:                $(CYGWIN32_LIBS)
                     92:
                     93: endif
                     94:
                     95: # This black magic piece of assembler needs to be linked in in order to
                     96: # properly terminate the list of imported DLLs.
                     97: dll_fixup.s:
                     98:        echo '.section .idata$$3'       > dll_fixup.s
                     99:        echo '.long 0,0,0,0, 0,0,0,0'   >> dll_fixup.s
                    100:
                    101: # This bit is necessary to provide an initialization function for the DLL.
                    102: dll_init.c:
                    103:        echo '__attribute__((stdcall))' > dll_init.c
                    104:        echo 'int dll_entry(int handle, int reason, void *ptr)' >> dll_init.c
                    105:        echo '{return 1; }' >> dll_init.c
                    106:
                    107: dont_throw_away: dll_fixup.o dll_init.o