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Updates #4081.
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This is needed for building rtems correctly with Clang.
Note that this change does not mean rtems can build correctly with
mainline clang. However the change allows building rtems with a
Clang toolchain that has a rtems frontend similar that of GCC's
builtin rtems specs.
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These modifications were required by hand after running the script.
In some cases, the file names did not match patterns. In others,
the format of the file did not match any common patterns.
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Script does what is expected and tries to do it as
smartly as possible.
+ remove occurrences of two blank comment lines
next to each other after Id string line removed.
+ remove entire comment blocks which only exited to
contain CVS Ids
+ If the processing left a blank line at the top of
a file, it was removed.
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See http://www.rtems.org/pipermail/rtems-devel/2012-May/001006.html
for details.
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* aclocal/bsp-arg-enable.m4, aclocal/canonical-target-name.m4,
aclocal/canonicalize-tools.m4, aclocal/check-custom-bsp.m4,
aclocal/check-posix.m4, aclocal/check-rdbg.m4,
aclocal/check-tool.m4, aclocal/config-subdirs.m4,
aclocal/enable-bare.m4, aclocal/enable-cxx.m4,
aclocal/enable-itron.m4, aclocal/enable-multiprocessing.m4,
aclocal/enable-networking.m4, aclocal/enable-posix.m4,
aclocal/enable-rdbg.m4, aclocal/enable-rtemsbsp.m4,
aclocal/env-rtemsbsp.m4, aclocal/gcc-isystem.m4,
aclocal/gcc-pipe.m4, aclocal/gcc-specs.m4,
aclocal/i386-gas-code16.m4, aclocal/multilib.m4,
aclocal/path-ksh.m4, aclocal/prog-cc.m4,
aclocal/prog-cxx.m4, aclocal/project-root.m4,
aclocal/rtems-top.m4, aclocal/target.m4,
aclocal/tool-paths.m4:
Fix underquoting to silence automake-1.8.
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* aclocal/bsp-alias.m4: New (Copied from ../../aclocal).
* aclocal/bsp-arg-enable.m4: New (Copied from ../../aclocal).
* aclocal/bsp-configure.m4: New (Copied from ../../aclocal).
* aclocal/bspopts.m4: New (Copied from ../../aclocal).
* aclocal/canonical-host.m4: New (Copied from ../../aclocal).
* aclocal/canonicalize-tools.m4: New (Copied from ../../aclocal).
* aclocal/canonical-target-name.m4: New (Copied from ../../aclocal).
* aclocal/check-cpu.m4: New (Copied from ../../aclocal).
* aclocal/check-custom-bsp.m4: New (Copied from ../../aclocal).
* aclocal/check-cxx.m4: New (Copied from ../../aclocal).
* aclocal/check-itron.m4: New (Copied from ../../aclocal).
* aclocal/check-multiprocessing.m4: New (Copied from ../../aclocal).
* aclocal/check-networking.m4: New (Copied from ../../aclocal).
* aclocal/check-posix.m4: New (Copied from ../../aclocal).
* aclocal/check-rdbg.m4: New (Copied from ../../aclocal).
* aclocal/check-tool.m4: New (Copied from ../../aclocal).
* aclocal/config-subdirs.m4: New (Copied from ../../aclocal).
* aclocal/enable-bare.m4: New (Copied from ../../aclocal).
* aclocal/enable-cxx.m4: New (Copied from ../../aclocal).
* aclocal/enable-inlines.m4: New (Copied from ../../aclocal).
* aclocal/enable-itron.m4: New (Copied from ../../aclocal).
* aclocal/enable-multiprocessing.m4: New (Copied from ../../aclocal).
* aclocal/enable-networking.m4: New (Copied from ../../aclocal).
* aclocal/enable-posix.m4: New (Copied from ../../aclocal).
* aclocal/enable-rdbg.m4: New (Copied from ../../aclocal).
* aclocal/enable-rtemsbsp.m4: New (Copied from ../../aclocal).
* aclocal/env-rtemsbsp.m4: New (Copied from ../../aclocal).
* aclocal/gcc-isystem.m4: New (Copied from ../../aclocal).
* aclocal/gcc-pipe.m4: New (Copied from ../../aclocal).
* aclocal/gcc-specs.m4: New (Copied from ../../aclocal).
* aclocal/i386-gas-code16.m4: New (Copied from ../../aclocal).
* aclocal/multilib.m4: New (Copied from ../../aclocal).
* aclocal/path-ksh.m4: New (Copied from ../../aclocal).
* aclocal/path-perl.m4: New (Copied from ../../aclocal).
* aclocal/ppc.m4: New (Copied from ../../aclocal).
* aclocal/prog-ccas.m4: New (Copied from ../../aclocal).
* aclocal/prog-cc.m4: New (Copied from ../../aclocal).
* aclocal/prog-cxx.m4: New (Copied from ../../aclocal).
* aclocal/project-root.m4: New (Copied from ../../aclocal).
* aclocal/quoting.m4: New (Copied from ../../aclocal).
* aclocal/rtems-cpu-subdirs.m4: New (Copied from ../../aclocal).
* aclocal/rtems-flags.m4: New (Copied from ../../aclocal).
* aclocal/rtems-top.m4: New (Copied from ../../aclocal).
* aclocal/target.m4: New (Copied from ../../aclocal).
* aclocal/tool-paths.m4: New (Copied from ../../aclocal).
* aclocal/version.m4: New (Copied from ../../aclocal).
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* aclocal/gcc-pipe.m4: Use $GCC instead of ac_cv_prog_gcc (autoconf
standard).
* aclocal/gcc-specs.m4: Use $GCC instead of ac_cv_prog_gcc (autoconf
standard).
* aclocal/multilib.m4: Fix m4-quoting (BUG-FIX).
* aclocal/check-bsp-cache.m4: Fix m4-quoting (autoconf-2.49b).
* aclocal/prog-cc.m4: Use $GCC instead of ac_cv_prog_gcc (autoconf
standard), replace CC_FOR_TARGET with CC (BUG-FIX).
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* aclocal/*: Replace with contents of macros/*.m4
* macros/: Remove.
* aclocal/ar-s.m4 aclocal/tool-prefix.m4: Remove.
* Makefile.am: Reflect changes to aclocal/ and macros/.
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The patch below actuallly consists of two patches:
1) moving librpc to c/src/librpc similar to what has been done to librtems++
2) reworked configure scripts, many safety and dependency checks added to
aclocal/*.m4 macros + configuration fixes.
To apply:
mkdir c/src/librpc
mkdir c/src/librpc/src
cp c/src/lib/librpc/*.c c/src/librpc/src
cp c/src/lib/librpc/Makefile.in c/src/librpc/src
mkdir c/src/librpc/include
mkdir c/src/librpc/include/rpc
cp c/src/lib/include/rpc/* c/src/librpc/include/rpc
patch -p1 < ../rtems-rc-19990820-7.diff
rm -rf c/src/lib/librpc
rm -rf c/src/lib/include/rpc
./autogen
The additional checks in aclocal/*m4 macros add rather restrictive, sometimes
unnecessarily restrictive constraints on the sequence of how macros can be
used in a configure.in script. Adding them has let my problems with some more
complicated configuration options vanish. Apparently some macros had not been
in the required order .
----
Now I still get some linking errors for some cpus and bsps, esp when linking
cdtest, but also at other locations:
e.g. this happens for mips64orion/p4600:
# make[5]: Entering directory
`/lfs/poseidon/users/rtems/src/multi/build/mips64orion-rtems/c/p4600/tests/samples/hello'
/opt/rtems/bin/mips64orion-rtems-gcc --pipe -B../../../../../../p4600/lib/
-specs bsp_specs -qrtems -DP4000 -DCPU_R4000 -DP3_DIAG -D_R4000 -D__mips=3
-mcpu=4600 -G0 -I../../../../../../p4600/lib/include/networking -g -Wall
-ansi -fasm -O4 -fomit-frame-pointer -o o-p4600/hello.exe
o-p4600/init.o ../../../../../../p4600/lib/no-dpmem.rel
../../../../../../p4600/lib/no-event.rel
../../../../../../p4600/lib/no-msg.rel ../../../../../../p4600/lib/no-mp.rel
../../../../../../p4600/lib/no-part.rel
../../../../../../p4600/lib/no-signal.rel
../../../../../../p4600/lib/no-timer.rel
../../../../../../p4600/lib/no-rtmon.rel
/opt/rtems/mips64orion-rtems/lib/libc.a(dtoa.o): In function `_dtoa_r':
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
/opt/hermes/embedded/build/build-mips64orion-tools/mips64orion-rtems/newlib/libc/stdlib/../../../../../src/newlib/libc/stdlib/dtoa.c:348: relocation truncated to fit: R_MIPS_LITERAL no symbol
collect2: ld returned 1 exit status
# mips64orion-rtems-gcc -v
Reading specs from /opt/rtems/lib/gcc-lib/mips64orion-rtems/2.95.1/specs
gcc version 2.95.1 19990816 (release)
# mips64orion-rtems-ld -v
GNU ld version 2.9.5 (with BFD 2.9.5)
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made no attempt to divide the comments up and place them with just
the appropriate files. Here is an excerpt from Ralf's email:
Changes including comments on changes I made after cycling through
all the targets:
* Added ranlib support. Now all targets use "ranlib" instead of "ar -s"
to build an index for a library. If ranlib isn't detected during
configuration, check if ar -s is working and try "ar -s" instead of
* Removed $(XXX_FOR_TARGET) from make/target.cfg.in, use $(XXX) instead now.
* gcc-target-default.cfg: LINK_XXXX-defines reworked to solve the -l
problem under posix (cf gcc-target-default.cfg)
* rtems-glom replaced by Makefile-rules inside of the wrapup/Makefile.in
that has been using rtems-glom until now.
* Removed CCC and friends in gcc-target-default.cfg, as they have been
breaking CXX support.
* Removed CONFIG.$(TARGET_ARCH).CC lines from several custom/*.cfg
files, because this is now set in custom/default.cfg.
* Added aclocal/ar-s.m4, check whether "ar -s" is working
* Added aclocal/cygwin.m4 and aclocal/exeext.m4.
* Reworked aclocal/canonicalize-tools.m4: Added ar -s check; fixes for
problems when XXX_FOR_TARGET is given via environment variables (didn't
work for gcc until now), adding cygwin check, improved autoconf-cache
handling.
* Removed -l from make rule dependencies. LINK_LIBS is now allowed to
contain -L and -l. LINK_OBJS and LINK_FILES must not contain -L or -l.
gcc28 make-exe rules now link using $(LINK_OBJS) $(LINK_LIBS) => Almost
all custom/*.cfg are modified. This is very likely to break something
because of typos or having missed to edit a file.
Open problems, known bugs, things I didn't do:
* custom/p4000.cfg seems to be out of date and requires to be reviewed.
(JRS NOTE: It is subordinate p4650 and p4600 -- both of which build ok
after minor changes.)
* custom/psim.cfg needs to be reviewed, I added some changes to it, I am
insecure about.
(JRS NOTE: psim had a minor problem endif/endef swapped but runs fine.)
* rtems-glom.in can now be removed.
* gcc*.cfg files "make depend" rules don't honor language specific flags
(e.g CXXFLAGS is ignored for *.cc) - Nothing to worry about now, but may
cause problems for hosts/targets not using gcc or rtems-add-ons that use
external packages.
* AFAIS, the no_bsp BSP can't be build anymore, i.e. configure refused
to configure for it whatever I tried.
* The toplevel and toplevel+1 README files are quite out-dated
* cygwin.m4 isn't of much use for rtems. In most cases (cf.
aclocal/*.m4) it is worked around by directly using $host_os. I think
I'll remove it soon after the next snapshot
* Before release the cygwin patch needs to be tested under cygwin. I may
have broken/missed something (esp. the sed-pattern to convert \\ into /
may be broken).
* You should try to build/run the posix-BSP under solaris - I don't
expect problems, but I am not 100% sure, esp. with regard to ranlib/ar -s.
* You should consider to convert all make/compilers/*.cfg files into
make/compilers/*.cfg.in files and let autoconf generate the *.cfg. This
may help getting rid of some if/then/else statements and help
hard-coding some defines into those files in future and shouldn't
disturb now.
* Not having installed libc.a/libm.a on a host may still break building
rtems, esp. when using -disable-gcc28 as the gcc27-configuration scheme
directly accesses libc.a and libm.a. The problem should not appear when
using gcc28 because it references libc/libm only through -lc and -lm
which may be static or dynamic (I didn't test this).
* shgen is not yet included (I didn't yet have enough time to integrate it).
* I know about a few more configure-probs (esp. cross-checking
--enable-* flags).
+ warn/refuse to configure when --enable-libcdir and
--enable-gcc28 are given.
+ force --enable-libcdir when --disable-gcc28 is given
* Replaced KSHELL with @KSH@ in some shell scripts generated by configure.in.
* Added a dependency to aclocal/*.m4 in the toplevel Makefile => configure
and aclocal.m4 will now be rebuild when any aclocal/*.m4 file is changed
* Some changes to aclocal/gcc-pipe.m4 and aclocal/gcc-specs.m4
* Replaced i[[3456]]86-unknown-freebsd2.[[12]] with i[[3456]]86-*freebsd2.*
in configure.in, as I suppose there might exist a variety of valid vendors
(2nd field of the name-tripple)
* Disabled override MAKEFLAGS in toplevel Makefile.in - Potential
side-effects are not really clear to me.
* In mvme162.cfg, $(LINK_LIBS) is missing in the CC line in gcc28's make-exe
rule (yet another one I missed to edit). Just append $(LINK_LIBS) to
the "CC" line, like I hopefully did to ALL other custom/*.cfg files.
* the problem with mvme162lx.cfg is a follow-up problem of the
mvme162.cfg-bug.
* mvme162/console and idp/console had variables named Buffer which
conflicted with similarly named variables in some tests.
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