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Gordon Matzigkeit
Gordon Matzigkeit
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14
ChangeLog
14
ChangeLog
@ -1,5 +1,19 @@
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Fri Jul 25 10:13:49 1997 Gordon Matzigkeit <gord@gnu.ai.mit.edu>
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* ltmain.sh.in (link): Remove code for `-version-file', since it
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has been long-deprecated.
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Disable static linking if hardcode_direct is unsupported.
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* ltconfig.in: Fix typo in test polarity. From Mark Kettenis.
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Thu Jul 24 10:42:30 1997 Gordon Matzigkeit <gord@gnu.ai.mit.edu>
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* ltconfig.in (hardcode_direct): Set to `unsupported' if aix3 uses
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a broken collect2. Adapted out of test results from Mark
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Kettenis.
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(link_static_flag): Make sure the link_static_flag actually works
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with a trivial binary.
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* ltmain.sh.in, ltconfig.in (export_dynamic_flag_spec): Renamed
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from export_dynamic_flag because we eval it in ltmain.sh.
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4
NEWS
4
NEWS
@ -6,8 +6,8 @@ New in 1.0a:
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platforms, via new `-dlopen' and `-pre-dlopen' link flags.
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* New tests for a BSD-compatible `nm' program, required for dlopened
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modules.
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* FIXME: Deleted `dlname' mode, now that the internal structure of `.la'
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files is a public interface.
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* Deleted `dlname' mode. Dlopen applications should only use the
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runtime search method described in (libtool)Finding the dlname.
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New in 1.0:
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* Bug fixes.
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@ -60,13 +60,14 @@ helldl: $(helldl_OBJECTS) $(helldl_DEPENDENCIES)
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hardcode: $(hardcode_tests)
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hc-direct: $(hell_OBJECTS) $(hell_DEPENDENCIES)
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@rm -f hc-direct
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@echo "You may ignore any linking errors from the following command:"
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@shlib=./.libs/libhello.a; \
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eval "`egrep '^library_names' libhello.la`"; \
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for lib in $$library_names; do \
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shlib="./.libs/$$lib"; \
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done; \
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echo "$(CC) $(LDFLAGS) -o $@ $(hell_OBJECTS) $$shlib $(LIBS)"; \
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eval "$(CC) $(LDFLAGS) -o $@ $(hell_OBJECTS) $$shlib $(LIBS)"
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echo "$(CC) $(LDFLAGS) -o $@ $(hell_OBJECTS) $$shlib $(LIBS) || echo unsupported > $@"; \
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eval "$(CC) $(LDFLAGS) -o $@ $(hell_OBJECTS) $$shlib $(LIBS) || echo unsupported > $@"
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hc-minusL: $(hell_OBJECTS) $(hell_DEPENDENCIES)
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@rm -f hc-minusL
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@ -130,7 +130,6 @@ Invoking @code{libtool}
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* Compile mode:: Creating library object files.
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* Link mode:: Generating executables and libraries.
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* Dlname mode:: Obtaining a file name to @code{dlopen(3)}.
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* Install mode:: Making libraries and executables public.
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* Finish mode:: Completing a library installation.
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* Uninstall mode:: Removing executables and libraries.
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@ -183,7 +182,7 @@ The libtool test suite
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* Test descriptions:: The contents of the test suite.
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* When tests fail:: What to do when a test fails.
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Maintainance notes for libtool
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Maintenance notes for libtool
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* New ports:: How to port libtool to new systems.
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* Tested platforms:: When libtool was last tested.
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@ -936,7 +935,6 @@ Print libtool version information and exit.
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@menu
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* Compile mode:: Creating library object files.
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* Link mode:: Generating executables and libraries.
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* Dlname mode:: Obtaining a file name to @code{dlopen(3)}.
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* Install mode:: Making libraries and executables public.
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* Finish mode:: Completing a library installation.
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* Uninstall mode:: Removing executables and libraries.
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@ -1029,22 +1027,6 @@ This method is often called @dfn{partial linking}.
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Otherwise, an executable program is created.
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@node Dlname mode
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@section Dlname mode
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@cindex Dlname mode
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@cindex Mode, dlname
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The @samp{dlname} mode simply prints the name of a libtool library that
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can be passed to the @code{dlopen(3)} function call (@pxref{Dlopened
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modules}).
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Each of the @var{mode-args} specifies a libtool library linked
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using the @samp{-export-dynamic} option (@pxref{Link mode}). The names
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of the modules to load are printed to standard output, one per line.
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If one of the @var{mode-args} was not linked with
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@samp{-export-dynamic}, then an error is displayed.
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@node Install mode
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@section Install mode
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@cindex Install mode
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@ -1963,24 +1945,8 @@ After a library has been linked with @samp{-export-dynamic}, it can be
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dlopened. Unfortunately, because of the variation in library names,
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your package needs to determine the correct file to dlopen.
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Dlname mode (@pxref{Dlname mode}) was designed for this purpose. It
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returns the name that should be given as the first argument to a
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@code{dlopen(3)} function call.
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For example, on NetBSD 1.2:
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@example
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burger$ @kbd{libtool --mode=dlname libhello.la}
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libhello.so.3.12
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burger$
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@end example
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The trick is in finding a way to hardcode this name into your program at
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compilation time, so that it opens the correct library.
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An alternative implementation that avoids hardcoding is to determine the
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name at runtime, by finding the installed @samp{.la} file, and searching
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it for the following lines:
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The basic implementation is to determine the name at runtime, by finding
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the installed @samp{.la} file, and searching it for the following lines:
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@example
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# The name that we can @code{dlopen(3)}.
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@ -2024,8 +1990,8 @@ family of functions. Some platforms do not even use the same function
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names (notably HP-UX, with its @samp{shl_load(3)} family).
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@item
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It is the burden of the libtool user to find a way to get the results of
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dlname mode (@pxref{Dlname mode}) into the call to @code{dlopen(3)}.
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The application developer must write a custom search function in order
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to discover the correct module filename to supply to @code{dlopen(3)}.
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@end itemize
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Each of these limitations will be addressed in GNU DLD
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@ -2234,7 +2200,7 @@ Please include the generated @code{libtool} script with your bug report,
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so that I can see what values @code{ltconfig} guessed for your system.
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@node Maintaining
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@chapter Maintainance notes for libtool
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@chapter Maintenance notes for libtool
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This chapter contains information that the libtool maintainer finds
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important. It will be of no use to you unless you are considering
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@ -28,9 +28,9 @@ rs6000-ibm-aix3.2.5 gcc 0.9h ok*
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sparc-sun-linux2.1.23 gcc 0.9h ok
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sparc-sun-sunos4.1.4 cc 1.0 ok
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sparc-sun-sunos4.1.4 gcc 1.0 ok
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sparc-sun-solaris2.4 cc 0.9 ok
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sparc-sun-solaris2.4 gcc 0.9 ok
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sparc-sun-solaris2.5 cc 0.9 ok
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sparc-sun-solaris2.4 cc 1.0a ok
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sparc-sun-solaris2.4 gcc 1.0a ok
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sparc-sun-solaris2.5 cc 1.0a ok
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sparc-sun-solaris2.5 gcc 1.0a ok
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--------------------------------------------------------
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@ -606,8 +606,9 @@ else
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# Note: this linker hardcodes the directories in LIBPATH if there
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# are no directories specified by -L.
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hardcode_minus_L=yes
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# Direct hardcoding is not supported with a broken collect2.
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if test "$with_gcc" = yes && test -n "$link_static_flag"; then
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if test "$with_gcc" = yes && test -z "$link_static_flag"; then
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# Neither direct hardcoding nor static linking is supported with a
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# broken collect2.
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hardcode_direct=unsupported
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fi
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;;
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1390
ltmain.sh.in
1390
ltmain.sh.in
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