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which adds partial automake support to libcpu/<cpu>/*.
Until now I have only implemented full automake support for the sh (my
demonstration example :) and the i386 (inevitiable for structural
reasons of this subdirectory). For all other cpus only their toplevel
directories (exception: powerpc), include subdirectories and a few
selected subdirectories have been converted to automake.
I did this on purpose, because add automake support to each subdirectory
requires individual adaptations which to be tested individually.
Additionally the weirdnesses of the powerpc subdirectories hit again,
esp. some powerpc cpu-models
* install files to $(PROJECT_INCLUDE)/<cpu-model>/ while others install
them to $(PROJECT_INCLUDE)/
* the scheme used to configure libcpu/powerpc/ is difficult to implement
using automake, therefore this subdirectory still is configured by
autoconf (The one out of an unlimited set selection scheme hits again
:), though powerpc/*/* subdirectories already apply automake.
The patch also reveils structural weaknesses in RTEMS:
E.g. There seem to exist at least 5 different general schemes:
* Not using libcpu at all (eg. i960)
* Strictly tree-style a libcpu/<cpu-variant>/* (eg. m68k, sh)
* Flat libcpu directory layout with cpu-variants merged into sources or
not destinguishing cpu-variants (i386)
* Not supporting variants with deep source tree (sparc, hppa, mips64orion)
* Woven directory structure with shared directories (powerpc)
I regret having to say this, but from my POV this means, that there
doesn't exist a general implementation scheme for libcpu at all.
To apply:
rm -rf ./c/src/lib/libcpu/i386/wrapup
rm -rf ./c/src/lib/libcpu/mips64orion/include
rm -rf ./c/src/lib/libcpu/powerpc/ppc403/include
patch -p1 < rtems-rc-19991203-7.diff
./bootstrap
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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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