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match glibc's quotient truncation behavior.
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Port the generic optimized string funcs from glibc, with some tweaks
to cut their size a little. The main change is making memmove
call memcpy for forward copying to trim redundant code.
Make use of both the generic and arch-specific speed-optimized string
funcs configurable. Arch-specific take precedence over generic,
and generic takes precedence over basic size-optimized uClibc funcs.
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Requested by Peter Mazinger. Testing wanted.
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Now all functions and vaiables can be made static to reduce relocs.
Basicly, all variables should be merged into one struct variable
and then export that struct. Exported functions should be exported
as functions pointers in the above struct. This will reduce the
number of relocs inside ldso to a handful.
Add -Bsymbolic to linker for ldso. This will resolve all functions
(all JMP_SLOT goes away) and the remaining relocs are transformed into
RELATIVE relocs.
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misread this code and removed it, sorry.
I printed the values of _dl_brkp and _dl_envp in ldso and
got this when executing:
ls:
__curbrk: 0x300c16e0
__environ: 0x1008372c
ldd:
__curbrk: 0x300776e0
__environ: 0x3007759c
why is__environ in the app when executing ls but not ldd?
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- adjust licensing terms of sources for crt*.o
- change the stat ABI to speed it up, matching changes in the kernel
- assorted bug-fixes, improvements and updates in the FR-V port
etc.
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the whole lot in a single pass.
-Erik
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This removes some crap in libdl.c(and future libs which needs
to access ldso functions).
What do you think?
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Fixed a bug in libdl.c where the RTLD_GLOBAL was assigned
wronly.
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only the global GOT entry relocations for the loaded shared libs were being
handled. This made applications segfault when using un-fixedup symbols. After
many hours debugging to track down the problem, this patch makes the mips port
happy again.
-Erik
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"I fixed the _dl_parse_copy_information in the same way than for the
powerpc and it works fine for me.
You may luck at the patch for the powerpc/elfinterp.c, where I change
the paramter of a dl_dprintf statement. Now we use the same
parameters than for the relocation copy."
Arch mantainers, please do the same.
When all arches has been fixed, we can remove of _dl_parse_copy_information,
it is just a waste of CPU cycles.
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this was sent earlier in a different form:
http://www.uclibc.org/lists/uclibc/2004-January/008136.html
find attached a smaller version ... perhaps adding a fprintf to stderr before
calling abort would be nice like in the glibc patch, but whatever
glibc has since adopted a similar fix for their malloc (third hunk, line 1970)
http://sources.redhat.com/cgi-bin/cvsweb.cgi/libc/malloc/malloc.c.diff?r1=1.121&r2=1.122&cvsroot=glibc&f=h
-mike
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i sent this earlier but perhaps people missed it the first time around :)
http://www.uclibc.org/lists/uclibc/2004-August/009544.html
basically if you try to #include <sys/ucontext.h> on arm it'll fail because
ucontext.h utilizes typedefs found in bits/sigcontext.h ... i386 already has
this fix in uClibc
find attached a trivial patch to fix this
-mike
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Hi Manuel & Erik
I think I know why MIPS is broken. _dl_perform_mips_global_got_relocations() is
broken. It will due to my latest changes reloctate ldso. This
function needs to die and its job should be done inside _dl_parse_relocation_information().
It is mostly a copy and paste job,
Also PERFORM_BOOTSTRAP_GOT and PERFORM_BOOTSTRAP_RELOCATION should be fixed, they
use symbols which aren't passed as arguments.
Jocke
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Below is a patch to make the pread and pwrite calls work on the SH
architecture. I've only tested this on the SH4 with a 2.4.24 kernel - a
fairly recent kernel is required as the problem is partially fixed in
the kernel itself. For more information (in relation to glibc, but the
problem is the same) see the thread at
http://sourceforge.net/mailarchive/message.php?msg_id=2375908
Someone should really test this on the SH2/3...
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Remove unused function parameter in ldso.
Remove echo option '-e' since it is not supported on Solaris.
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TODO item is now done.
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more sane than 'gcc -pg' and seems much easier to support.
-Erik
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size and performance penalty to profiling applications this way, as well as
Heisenberg effects, where the act of measuring changes what is measured.
There are better tools for doing profiling, such as OProfile, that do not
require gcc to instrument the application code.
-Erik
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-Erik
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to use '_dl_pagesize'
-Erik
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