lnxlib.rules

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XCOMM $XConsortium: lnxLib.rules /main/13 1996/09/28 16:11:01 rws $
XCOMM $XFree86: xc/config/cf/lnxLib.rules,v 3.28.2.3 1997/06/22 10:32:20 dawes Exp $

/*
 * Linux shared library rules (DLL & ELF versions)
 */
#ifndef HasSharedLibraries
#define HasSharedLibraries YES
#endif
#ifndef ForceNormalLib
#define ForceNormalLib NO
#endif

#define SharedOldX NO

#if UseElfFormat

#if (LinuxCLibMajorVersion >= 5 && LinuxCLibMinorVersion >= 4) || LinuxCLibMajorVersion >= 6
#undef SpecialMalloc
#define SpecialMalloc NO
#undef UseInternalMalloc
#define UseInternalMalloc NO
#endif

/*
 *	#define BaseShLibReqs	-lc
 *
 * I don't want to use this since the normal ELF executables should
 * be linked with libc.so. If it is not, i.e., static, the variables in
 * libc.so which is loaded in because of the other shared libraries
 * may have different values than the ones in the static ELF
 * executables. That happens if the binaries are linked with libg.a
 * or libc_p.a.
 *
 * If an ELF executable linked with libg.a or libc_p.a loads a shared
 * object which needs libc.so via dlopen (), I think it should fail.
 * It is a very bad idea. The moral story is DON'T USE dlopen () IN
 * ELF EXECUTABLES LINKED WITH libg.a OR libc_p.a. H.J.
 *
 */
#define BaseShLibReqs

#ifndef SharedDataSeparation
#define SharedDataSeparation NO
#endif
#ifndef SharedCodeDef
#define SharedCodeDef /**/
#endif
#ifndef SharedLibraryDef
#define SharedLibraryDef /**/
#endif
#ifndef ShLibIncludeFile
#define ShLibIncludeFile <lnxLib.tmpl>
#endif
#ifndef SharedLibraryLoadFlags
#define SharedLibraryLoadFlags -shared
#endif
#ifndef PositionIndependentCFlags
#define PositionIndependentCFlags -fPIC
#endif
#ifndef PositionIndependentCplusplusFlags
#define PositionIndependentCplusplusFlags -fPIC
#endif
#ifndef ExtraLoadFlags
#if LinuxBinUtilsMajorVersion >= 26
#ifdef UseInstalled
#if LinuxBinUtilsMajorVersion < 27
#define ExtraLoadFlags -Wl,-rpath-link,$(USRLIBDIRPATH)
#endif
#else
#define ExtraLoadFlags -Wl,-rpath-link,$(BUILDLIBDIR)
#endif
#else
#define ExtraLoadFlags -Wl,-rpath,$(USRLIBDIRPATH)
#endif
#endif

/*
 * InstallSharedLibrary - generate rules to install the shared library.
 * NOTE: file must be executable, hence "INSTBINFLAGS"
 */
#ifndef InstallSharedLibrary
#define	InstallSharedLibrary(libname,rev,dest)				@@\
install:: Concat(lib,libname.so.rev) 					@@\
	MakeDir($(DESTDIR)dest)						@@\
	$(INSTALL) $(INSTALLFLAGS) $(INSTBINFLAGS) Concat(lib,libname.so.rev) $(DESTDIR)dest @@\
	@T=`echo Concat($(DESTDIR)dest/lib,libname.so.rev) | sed 's/\.[^\.]*$$//'`;\
	  set -x; $(RM) $$T && $(LN) Concat(lib,libname.so.rev) $$T	@@\
	$(RM) Concat($(DESTDIR)dest/lib,libname.so)			@@\
	$(LN) Concat(lib,libname.so.rev) Concat($(DESTDIR)dest/lib,libname.so)
#endif /* InstallSharedLibrary */

/*
 * InstallSharedLibraryData - generate rules to install the shared library data
 */
#ifndef InstallSharedLibraryData
#define	InstallSharedLibraryData(libname,rev,dest)
#endif /* InstallSharedLibraryData */


/*
 * SharedLibraryTarget - generate rules to create a shared library;
 * build it into a different name so that we do not hose people by having
 * the library gone for long periods.
 */
#ifndef SharedLibraryTarget
#ifdef UseInstalled
#define LinkBuildSonameLibrary(lib) true
#else
#define LinkBuildSonameLibrary(lib) (RemoveFile($(BUILDLIBDIR)/lib); \
	cd $(BUILDLIBDIR); $(LN) $(BUILDINCTOP)/$(CURRENT_DIR)/lib .)
#endif

#define SharedLibraryTarget(libname,rev,solist,down,up)			@@\
AllTarget(Concat(lib,libname.so.rev))					@@\
									@@\
Concat(lib,libname.so.rev):  solist $(EXTRALIBRARYDEPS)			@@\
	$(RM) $@~							@@\
	@SONAME=`echo $@ | sed 's/\.[^\.]*$$//'`; set -x; \		@@\
		(cd down; $(CC) -o up/$@~ $(SHLIBLDFLAGS) -Wl,-soname,$$SONAME solist $(REQUIREDLIBS) BaseShLibReqs); \ @@\
		$(RM) $$SONAME; $(LN) $@ $$SONAME; \			@@\
		LinkBuildSonameLibrary($$SONAME)			@@\
	$(RM) $@ 							@@\
	$(MV) $@~ $@							@@\
	$(RM) Concat(lib,libname.so)					@@\
	$(LN) $@ Concat(lib,libname.so)					@@\
	LinkBuildLibrary($@)						@@\
	LinkBuildLibrary(Concat(lib,libname.so))			@@\
									@@\
clean::									@@\
	@MAJREV=`expr rev : '\(.*\)\.'`; \				@@\
	set -x; $(RM) Concat(lib,libname.so.$$MAJREV)			@@\
	$(RM) Concat(lib,libname.so.rev) Concat(lib,libname.so)

#endif /* SharedLibraryTarget */

#ifndef SharedDepModuleTarget
#define SharedDepModuleTarget(name,deps,solist)				@@\
AllTarget(name)								@@\
									@@\
name: deps								@@\
	$(RM) $@~							@@\
	$(CC) -o $@~ $(SHLIBLDFLAGS) solist $(REQUIREDLIBS) BaseShLibReqs @@\
	$(RM) $@							@@\
	$(MV) $@~ $@							@@\
									@@\
clean::									@@\
	$(RM) name

#endif /* SharedDepModuleTarget */

/*
 * SharedLibraryDataTarget - generate rules to create shlib data file;
 */
#ifndef SharedLibraryDataTarget
#define SharedLibraryDataTarget(libname,rev,salist)
#endif /* SharedLibraryTarget */

#else /* UseElfFormat */

#ifndef SharedDataSeparation
#define SharedDataSeparation NO
#endif
#ifndef SharedCodeDef
#define SharedCodeDef /**/
#endif
#ifndef SharedLibraryDef
#define SharedLibraryDef /**/
#endif
#ifndef ShLibIncludeFile
#define ShLibIncludeFile <lnxLib.tmpl>
#endif
#ifndef SharedLibraryLoadFlags
#define SharedLibraryLoadFlags /**/
#endif
#ifndef PositionIndependentCFlags
#define PositionIndependentCFlags -B/usr/bin/jump
#endif

/*
 * These definitions are now extended to work with the X sources and
 * external sources wishing to build shared libs.
 *
 * A library can create it's own shlibs (.so) or can be incorporated into
 * another "host" lib. All libraries generate stub (.sa) files.
 * A "host" lib does all the work to generate the stubs for itself and its
 * "guests", invoking the "guest" Makefiles to create the objects for
 * inclusion into the "host" shlib. A "guest" lib will ask the "host" to
 * create the stubfiles, then copy its own into its directory.
 * Most external libs are "host" libs; the concept of "guest" is a holdover
 * from older libs during the days of scarce shared library address space.
 *
 * To create a simple "host" shared lib, Xfoo, define:
 *
 *  JUMP_ROOT_Xfoo = <source directory>
 *  JUMP_IS_HOST_Xfoo = YES
 *  JUMP_STUBLIBS_Xfoo = libXfoo.sa
 *  JUMP_DIR_Xfoo = $(JUMP_ROOT_Xfoo)/shared		<work directory>
 *  JUMP_DEFS_Xfoo = -DFOO				<defs for jump files>
 *  JUMP_VARS_Xfoo = $(JUMP_ROOT_Xfoo)/jump_vars	<see DLL docs>
 *  JUMP_FUNCS_Xfoo = $(JUMP_ROOT_Xfoo)/jump_funcs	<see DLL docs>
 *  JUMP_IGNORE_Xfoo = $(JUMP_ROOT_Xfoo)/jump_ignore	<see DLL docs>
 *  JUMP_EXPORT_Xfoo = $(JUMP_DIR_Xfoo)/jump.vars	<exported symbols>
 *  JUMP_IMPORT_Xfoo = $(JUMP_EXPORT_Xbar)		<imported symbols>
 *  JUMP_ADDRESS_Xfoo = 0xXXXXXXXX			<fill in with address>
 *  JUMP_JUMPTABLESIZE_Xfoo = 0x4000			<adjust if necessary>
 *  JUMP_GOTSIZE_Xfoo = 4096				<adjust if necessary>
 *  JUMP_STUBNAMES_Xfoo = libXfoo			<and others>
 *  JUMP_STUBS_IMPORT_Xfoo = /usr/lib/libc.sa		<and others>
 *  JUMP_LDLIBS_Xfoo = `$(CC) --print-libgcc-file-name` -lc <and others>
 *
 * To create a complex "host", you need to add
 *  JUMP_SIBARS_Xt = jump/libXbar.a~			<and others>
 * These are the archives of the shared objects of the "guest" libs. They
 * need to be added to the JUMP_LDLIBS_Xfoo lines.
 *
 * For further clarification, study the definitions of libXaw, a simple "host"
 * lib, libXt, a complex "host" lib, and libXmu, one of libXts "guests".
 *
 * As a hint of how to start (with the DLL docs), touch jump_vars, jump_funcs
 * and jump_ignore, then compile. Then massage the jump.vars and jump.funcs
 * files in the shared subdirectory into jump_xxx files.
 */

#ifndef UseInstalled
XCOMM These are only needed to build the server

#if LinuxElfDefault
LIBC_SA = /usr/i486-linuxaout/lib/libc.sa
LIBM_SA = /usr/i486-linuxaout/lib/libm.sa
#else
LIBC_SA = /usr/lib/libc.sa
LIBM_SA = /usr/lib/libm.sa
#endif

JUMP_LDLIBS_libc = `$(CC) --print-libgcc-file-name` -lc

XCOMM libX11.so (X11, SM, ICE)
JUMP_ROOT_X11 = $(XLIBSRC)
JUMP_IS_HOST_X11 = YES
JUMP_STUBLIBS_X11 = libX11.sa libSM.sa libICE.sa
JUMP_SIBDIRS_X11 = $(JUMP_ROOT_SM) $(JUMP_ROOT_ICE)
JUMP_DIR_X11 = $(JUMP_ROOT_X11)/shared
JUMP_DEFS_X11 = $(XDMAUTHDEFS) $(XKB_DEFINES)
JUMP_VARS_X11 = $(JUMP_ROOT_X11)/jump_vars
JUMP_FUNCS_X11 = $(JUMP_ROOT_X11)/jump_funcs
JUMP_IGNORE_X11 = $(JUMP_ROOT_X11)/jump_ignore
JUMP_EXPORT_X11 = $(JUMP_DIR_X11)/jump.vars
JUMP_ADDRESS_X11 = 0x60200000
JUMP_JUMPTABLESIZE_X11 = 0x4000
JUMP_GOTSIZE_X11 = 4096
JUMP_STUBNAMES_X11 = libX11 libSM libICE
JUMP_STUBS_IMPORT_X11 = $(LIBC_SA)
JUMP_SIBARS_X11 = jump/libSM.a~ jump/libICE.a~
JUMP_LDLIBS_X11 = $(JUMP_SIBARS_X11) $(JUMP_LDLIBS_libc)

XCOMM libSM (part of libX11.so)
JUMP_ROOT_SM = $(SMSRC)
JUMP_IS_HOST_SM = NO
JUMP_HOST_SM = $(JUMP_ROOT_X11)
JUMP_DIR_SM = $(JUMP_DIR_X11)

XCOMM libICE (part of libX11.so)
JUMP_ROOT_ICE = $(ICESRC)
JUMP_IS_HOST_ICE = NO
JUMP_HOST_ICE = $(JUMP_ROOT_X11)
JUMP_DIR_ICE = $(JUMP_DIR_X11)

XCOMM libXt.so (Xt, Xmu, Xext, Xi, Xtst, Xp)
JUMP_ROOT_Xt = $(TOOLKITSRC)
JUMP_IS_HOST_Xt = YES
JUMP_STUBLIBS_Xt = libXt.sa libXmu.sa libXext.sa libXi.sa libXtst.sa libXp.sa
JUMP_SUBDIRS_Xt = $(JUMP_ROOT_X11)
JUMP_SIBDIRS_Xt = $(JUMP_ROOT_Xmu) $(JUMP_ROOT_Xext) \
	$(JUMP_ROOT_Xi) $(JUMP_ROOT_Xtst) $(JUMP_ROOT_Xp)
JUMP_DIR_Xt = $(JUMP_ROOT_Xt)/shared
JUMP_VARS_Xt = $(JUMP_ROOT_Xt)/jump_vars
JUMP_FUNCS_Xt = $(JUMP_ROOT_Xt)/jump_funcs
JUMP_IGNORE_Xt = $(JUMP_ROOT_Xt)/jump_ignore
JUMP_EXPORT_Xt = $(JUMP_DIR_Xt)/jump.vars
JUMP_IMPORT_Xt = $(JUMP_EXPORT_X11)
JUMP_ADDRESS_Xt = 0x602a0000
JUMP_JUMPTABLESIZE_Xt = 0x4000