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synth.ld (GCC 3.2.1) question
- From: Sergei Gavrikov <w3sg at SoftHome dot net>
- To: ecos-discuss at ecos dot sourceware dot org
- Date: Sun, 27 May 2007 17:49:43 +0300
- Subject: [ECOS] synth.ld (GCC 3.2.1) question
Hello,
Sometimes, I use the i386-elf-gcc (GCC 3.2.1) from the public
ecoscentric toolchain for I386 to build/debug some test using the eCos
synth target.
AFAIK, they don't recommend to use native GCC for that. The synth.ld
script (hal/synth/arch/current/src/synth.ld) contains a point
#if (__GNUC__ >= 3)
GROUP(libtarget.a libgcc.a libsupc++.a libgcc_eh.a)
#else
GROUP(libtarget.a libgcc.a)
#endif
According a ChangeLog, that was Jonathan Larmour's tweak.
But their GCC 3.2.1 has no libgcc_eh.a at all:
~/ecos/gnutools/i386-elf/i386-elf/lib/libcygmon.a
~/ecos/gnutools/i386-elf/i386-elf/lib/libsupc++.a
~/ecos/gnutools/i386-elf/i386-elf/lib/libstdc++.a
~/ecos/gnutools/i386-elf/i386-elf/lib/libnosys.a
~/ecos/gnutools/i386-elf/lib/gcc-lib/i386-elf/3.2.1/libgcc.a
So, I have to fix the GROUP description in the result .ld script
(install/lib/target.ld) every time to build the test, i.e. to replace
the line
GROUP(libtarget.a libgcc.a libsupc++.a libgcc_eh.a)
by
GROUP(libtarget.a libgcc.a libsupc++.a libgcc.a)
Well, that isn't an issue for the sed, but...
Question: Do we need to change that condition in the synth.ld to check
the GCC minor version to fix the problem? Does somebody mess that too?
The GCC spec is
Reading specs from /home/sg/ecos/gnutools/i386-elf/bin/../lib/gcc-lib/i386-elf/3.2.1/specs
Configured with: /home/demonweb/tools/ecos-gnutools-v1.4/r2/i386-elf/x86_linux_lsb1_3/tar_bz2/source/gcc-3.2.1/configure --target=i386-elf --prefix=/home/demonweb/tools/ecos-gnutools-v1.4/r2/i386-elf/x86_linux_lsb1_3/tar_bz2/opt/ecos/gnutools/i386-elf --enable-languages=c,c++ --with-gnu-as --with-gnu-ld --with-newlib --with-gxx-include-dir=/home/demonweb/tools/ecos-gnutools-v1.4/r2/i386-elf/x86_linux_lsb1_3/tar_bz2/opt/ecos/gnutools/i386-elf/i386-elf/include
Thread model: single
gcc version 3.2.1
The ecosconfig version is
ecosconfig 2.0 (May 9 2003 09:45:47)
Copyright (c) 2002 Red Hat, Inc.
My usual steps to build any test are
1. Build libtarget.a
ecosconfig new linux <template>
ecosconfig tree
make -s ECOS_COMMAND_PREFIX=i386-elf-
2. Fix `install/lib/target.ld' (as it was described above)
3. Make the test
Thanks.
-- Sergei
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