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to stabs warning messages, as we already provide it in the message. This
will not change until all our supported architectures move to ELF.
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- extra $(SHELL) and sugar for make (so that files not mode +x still work)
- safer temp file handling
- our W^X binary layout changes in ld
- OpenBSD policy for library file selection in ld
- arm and m88k changes which were not merged in time for official 2.15
- bfd core file handling
- a couple typos
New for 2.15:
- ld(1) and as(1) manpages now generated at build time
- binutils/stabs.c reverted to use our in-tree libiberty for now
- we still use our VIA C3 crypto code over stock binutils, as it recognizes
more instructions
- new emulations for OpenBSD on mips64 machines, to help OpenBSD/sgi
- relaxed %f# handling in gas on OpenBSD/sparc64 (same as was in 2.14)
Tested on all platforms by various people; special thanks to sturm@ and
otto@.
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ok espie@
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ok drahn@
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remove testsuites (not useable) remove mmalloc (not part of new binutils).
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and try not to fopen(NULL, ...) later.
ok millert@
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executable regions which are writable. If a section of an executable is
writable and executable, it is much easier for errant code to modify the
executable's behavior.
Two current areas in shared library environments which have this
critical problem are the GOT (Global Offset Table) and PLT (Procedure
Linkage Table). The PLT is required to be executable and both GOT and
PLT are writable on most architectures. On most ELF architecture
machines this would cause shared libraries to have data and BSS marked
as executable.
Padding to the linker script for programs and shared libraries/objects
to isolate the GOT and PLT into their own load sections in the
executables. This allows only the text(readonly) region and the PLT
region to be marked executable with the normal data and BSS not marked
as executable. The PLT region is still marked executable on most
architectures because the PLT lives in the "data" or "BSS" regions
and the dynamic loader will need to modify it. Since the GOT and PLT
should only ever be written by the dynamic linker, it will be modified
to mprotect those regions so that they are not writable during normal
execution. If the dynamic linker needs to modify the regions later,
(eg for lazy binding), it will mprotect the region, make the necessary
changes, and mprotect it back. Since it is possible to receive a
signal which would interrupt the program flow and perhaps cause the
dynamic linker to modify the same (or nearby) PLT references, it is now
necessary for signals to be blocked for the duration of the mprotect.
This diff was omitted from the original commit, this implements the
-Z option to produce traditional (non protected) executables.
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This behavior broke libraries which were named libN-X.Y.so.A.B. ok pval, espie
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fixes the "NEEDED crtend.o" problem that appeared in varios ports and
had to be workarounded. from thorpej@NetBSD, thanks to drahn@ for
pointing it out; ok drahn espie
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- only the binutils package (no gdb here)
- don't import libiberty and texinfo, they are elsewhere
- remove all .info* generated files
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required shared library and include it in the link if it's not specified
explicitly. This change makes ld look at the -L arguments specified,
and build search path. This avoids the need for -rpath-link, and
somewhat resembles the a.out linker behaviour. However behaviour of
-rpath and -rpath-link is still preserved as a GNU extension.
ok drahn, espie looked at it too
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of a program is done...
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it during tree lock. Grrr
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Use the /var/run/ld.so.hints for looking up transitive dependancies on shared
libraries in ld, this is done in linux with ld.so.conf, but the string
is stored in ld.so.hints for openbsd. Fixes some "-rpath" compilation
errors. as with the linux case, this is only for the native ld.
Ok'd by espie@.
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Testing by Dale.
Ok'd deraadt@
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(trivial part done, `interesting' patches remain)
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- only the binutils package (no gdb here)
- don't import libiberty and texinfo, they are elsewhere
- remove all .info* generated files
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highest
version of libxx.so.n. This is what ldconfig sets as highest. This will make manual
linking of libxx.so to libxx.so.n not requiered any more.
Also some constructor/shared lib fixes. Relocs is placed in the wrong section though.
Hmmm..
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