- symbol_values checks that the symbol is indeed belonging to the
correct symbol and string table pairs before looking up. (since there
could be many pairs, and KLD/DDB need to find out).
- different ops for files versus preload modules - the unload mechanism
is different. (a preloaded module has to be deleted on unload since
the in-core image is tainted by relocation and variables used)
- Do not build an a.out kernel module if we're running on an elf
kernel. :-) Note that it should theoretically be possible to
mix a.out and elf KLD modules providing -mno-underscores was used
to compile it, or some other symbol conversion takes place.
- Support preload modules (even though /boot/loader doesn't yet)
- Search the module path when loading files.
check off SYSINIT entries as they are run, and when more arrive, we re-sort
and restart (skipping the already-run entries).
This can *only* be done after KMEM (and malloc) is up and running - this is
fine because KLD is the only consumer of this and it's done after that.
The nice thing about this is that the SYSINIT's within preloaded KLD modules
are executed in their natural order. It should be possible to register
devices for the probes which follow, etc. (soon.. several key things
prevent this, such as use of linker sets for things like pci devices).
trying to do it in locore. We also walk through the module table
and relocate any MODINFO_ADDR pointers so that they become KVM relative
rather than physical addresses. This means that hacks for adding
0xf0000000 in places like MFS go away.
get to all the symbol tables for all modules, not just the core kernel
symbol table. Yes, DDB can see KLD module symbols with this, both by
lookup and in tracebacks. No more references to _end from tracebacks
within an LKM. :-)
because the alpha boot loader hasn't been converted yet, and because
it needs the full symbol tables with local symbols in order to make sense
of stack tracebacks. KLD will implement this (using full sybmol table
rather than the globals only) shortly.
case it's possible to compile in something like ECOFF)
The three db_xxx.c symbol interfaces are "standard" because config isn't
flexible enough without forcing the user to know about it.
should be MD code since one day we'll have to recover pages from deleted
preload data. MI code can't be expected to know how to deal with pmap
internals, assuming it gets done via pmap that is. :-)
- get dependency info from PT_DYNAMIC's DT_NEEDED tags.
- store MODINFOMD_DYNAMIC for the kernel's later use
setenv kernelname when we have it
Fix firstaddr/lastaddr calculation (duh! :-)
Explicitly skip string table with section names in it.
KLD modules are *not* PIC. (Shared libs are pic to avoid relocations
causing copy-on-write, that's irrelevant here).
setenv kernelname when we load it.
Use MODINFO_SSYM/ESYM for each symbol section when (if) there are
more than one being loaded.
Remove Mike's explicit data structures for dependency info. This is
done via DT_NEEDED etc in the dynamic section for now. This may need
to be revisited later on.
Change symbol_values return type to int, on the chance that we've
been given the wrong symbol table. Symbols have a string index that
must be relative to the correct string table.
Add prototypes for better kld support for ddb.
First part of support for merging SYSINIT sets.
This, and the following KLD commits have been OK'ed by jkh and msmith
based on my assertion that it works here (barring merge errors :-).
is a work-around from an LRAM access bug on the 940UA. In a future
microcode revision, the high 16bits of residual information will be moved
to a safe location and we'll return to 32bit residuals. Since we only
allow 64KB I/O, 16bits is enough.
make pthread_yield() more reliable,
threads always (I hope) preempted at least every 0.1 sec, as intended.
PR: bin/7744
Submitted by: "Richard Seaman, Jr." <dick@tar.com>
bug:
"head -c <n>" never exit and loops forever (until it is killed),
if the input stream has fewer bytes than specified (n).
PR: bin/8225
Submitted-by: FUJIMOTO Kensaku <fujimoto@oscar.elec.waseda.ac.jp>
Do a much better job of DWIM with partial device specifications.
Fix the module metadata build process, which was completely broken.
Use a larger read buffer when copying large objects in; this
improves performance marginally and will avoid flushning any small caches
we might choose to implement.
Remove debugging in command_read().
Correctly strip leading controls on script commands.
Make 'ls' more DWIM in regard to pathnames. We can still do better.
