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robertmh |
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This port of Glibc is unfinished and in highly inmature stage!
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It is based on many assembly sources from the or32 port of uClibc.
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Build instructions
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~~~~~~~~~~~~~~~~~~
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In order to build, you need to overlay this sysdeps directory onto a fresh
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glibc-2.3.1 tree. After that, apply the patches.
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You need a gcc-3.4 cross-compiler built without thread support. It must be
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patched not to prepend symbol names with an underscore (this is to avoid
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conflict with hardcoded symbols in libgcc).
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As for Glibc build parameters (asides from the obvious).
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CFLAGS="-g -O1 -fno-cprop-registers -fno-unit-at-a-time -finline-functions"
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--disable-sanity-checks (allow us to build without thread support)
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--disable-profile
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--disable-shared (shared library support is filled with dummy code.
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better not use it)
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Status
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~~~~~~
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It builds and you can link static binaries with it, but the initialisation
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routines contain bugs that cause SIGSEVs (this was found in places like
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getenv() and malloc()).
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No thread support. No shared library support.
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A number of files (both in sysdeps and in the patches) contain dirty hacks
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(some are very dirty, see for yourself). I tried to keep record of these with
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"FIXME" tags. A number of these hacks are derived from the fact that we don't
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have thread support or shared library support and will probably disappear when
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we do.
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Only 2.3.1 is supported. It can't be updated to more recent versions of Glibc
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untill we have recent binutils in a working state.
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Copyright status
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~~~~~~~~~~~~~~~~
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Before you add copyright-significant amount of code (around 15 unredundant
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lines) to this port, please note that due to FSF policy your contribution can't
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be merged in official Glibc unless you do the paperwork to assign copyright to
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them.
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As of importing the port, it only contains work copyrighted by me
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(Robert Millan ) and the person who ported uClibc. My
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paperwork wrt Glibc is done. If you know who wrote the uClibc port, please let
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me know so I can contact him/her.
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