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parallel build works correctly
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-fstack-protector and -fno-stack-protector-all security
options
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Here's an updated version of the patch I posted about a month ago. It
leaves -nostdinc alone, and uses -print-file-name=include instead of
-print-search-dirs to figure out where GCC's internal headers are.
Please let me know whether there are any portions of this patch you'd
like me to break into smaller pieces, to rework, or to give up trying
to get into uClibc :-) Thanks,
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Mazinger implements the changes suggested by me on the uclibc list.
On Tuesday 28 September 2004 02:24 pm, Erik Andersen wrote:
> What I think should be done is
>
> *) Someone that cares about USE_CACHE should fix that option
> up to be sure it works, and give it a proper config entry
> in extra/Configs/Config.in, and rename it to something
> more appropriate such as LDSO_CACHE_SUPPORT.
>
> *) When LDSO_CACHE_SUPPORT=n, UCLIBC_RUNTIME_PREFIX /usr/X11R6/lib
> should be included in the default library search path in
> dl-elf.c, ldd, and ldconfig.
>
> *) When LDSO_CACHE_SUPPORT=y, UCLIBC_RUNTIME_PREFIX /usr/X11R6/lib
> should be excluded from the default library search path in
> dl-elf.c, ldd, and ldconfig, and those wishing to include
> X11 stuff should add that into /etc/ld.so.conf and re-run
> ldconfig.
>
> *) At present, LDSO_CONF and LDSO_CACHE use the same names
> and same structure as glibc. This precludes
> LDSO_CACHE_SUPPORT being uses in any sane fashion on a
> dial glibc and uClibc system. Just as it was necessary
> for use to use a different name for 'libuClibc' rather
> than 'libc', and 'ld-uClibc.so.0' rather than
> 'ld-linux.so.2' it seems that these configuration files
> really ought to be given different names.
>
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is needed if ldso should use libcs malloc whenever possible.
Fix RTLD_LAZY propagation to RTLD_NOW relocation when requested by
libdl.
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Don't' use atexit in libdl.
Make destrutor in libdl actually run and to dlclose all
dlopened libs.
Remove dlclosed libs from the _dl_symbol_tables list.
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in libdl, the XXFLAGS is set incorrectly if DODEBUG=y ... it has 'I.' added to
it instead of '-I.' ... this of course pisses of gcc :)
find attached a patch that cleans up the XXFLAGS setting so as to minimize
this kind of thing ... when asked, mjn3 said it was a kosher idea ;)
and later writes:
hmm it seems ldso also utilizes USE_CACHE in the code (but LIBRARY_CACHE never
propogates down to the Makefiles)
so the fix is to add $(LIBRARY_CACHE) while setting $(XXFLAGS)
Applied with minor fixes and also fixed up ldso/Makefile to match
libdl/Makefile.
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rather than _dl_malloc, fprintf rather than _dl_printf, etc.
-Erik
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problem with mips -- contrary to my expectation gcc on mips _always_ defines
__PIC__ which breaks the assumption inherent in my code. This should fix
things up.
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avoid problems 'hidden symbol' problems. Also handle -lfloat for the
soft-float arm case.
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which should simplify enabling arbitrary architectures.
-Erik
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ln.patch:
* Define $(LN) as ln in Rules.mak.
* Change all occurrences of ln into $(LN).
* Change all constructs like (cd path && ln -sf foo/file file)
into $(LN) -sf foo/file path/file. The latter construct is
already used in a number of places so it should not be
an additional compatibility problem.
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rm.patch:
* Define $(RM) as rm -f in Rules.mak and test/Rules.mak
(this is the same definition as gmake uses by default).
* Change all occurrences of rm and rm -f into $(RM).
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install.patch:
* Define $(INSTALL) as install in Rules.mak.
* Change all occurrences of install into $(INSTALL).
* Change all occurrences of mkdir -p into $(INSTALL) -d.
install -d is already used in a number of places so
this should not be an additional compatibility problem.
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dlopen and have it be successful. This required moving some
things out of ldso.c into readelflib1.c, and directly including
hash.c and readelflib1.c into dlib.c when building the static
version of the library.
-Erik
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-Erik
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Propagate fixes across makefiles.
-Erik
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field by being sneaky.
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segfault. Turns out that 'ld -nostdlib' was the culprit.
Who wouldof thought...
-Erik
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-Erik
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with the new naming
-Erik
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chicken-and-egg problems when building gcc toolchains.
-Erik
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proper error checking
-Erik
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needed).
Fix a stupid typo in dlib.c where I had several weak symbols
set up backwards, breaking libdl (dlopen and friends),
-Erik
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-Erik
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--uclibc-use-build-dir
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and when using real functions. Make things be more portable by
providing a default C routine to locate the got.
-Erik
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libfoo.so symlink as well as a libfoo.so.0 link, since gcc is currently
only looking for files ending in .so. wierd.
-Erik
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tree is less messy now (which helps), all libraries are placed into
uClibc/lib when compiling, all libraries now use a consistant mechanism
for being built, all libraries use a consistant naming scheme where the
lib name includes the uClibc version number, which makes ldconfig
happy and willing to work with us.
-Erik
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was using one name and the ld.so-1 dir was using another (they happened
to be the same). Fix that.
-Erik
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the C based syscalls working, which greatly simplifies what it takes
to get new architectures running.
-Erik
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-Erik
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libdl library, not $(CC).
-Erik
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III and me. I've been working on stripping out arch dependant stuff and
replacing it with generic stuff whenever possible.
-Erik
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