This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.
Boy, I'm glad we're not using sup anymore. This update would have been
insane otherwise.
1) add Garrett Wollman's trap frame resolving mods
2) make the `proc' command (kernel debugging) really work
3) allow use of a pid with the `proc' command (previously you had to
provide the address of the proc structure)
Unfortunately, the `proc' command won't work while doing remote debugging.
alias `pcb_cr3' instead. That is still one alias too many, but is convenient
for me since I've replaced the tss in the pcb by a few scalar variables in
the pcb.
> * the gdb-4.13 of current (compiled and used under 2.0R) can not attach to my
> own processes (it works only then i'm root - else i get open failed - for my
> own processes)
how embarassing ! This turns out to be a bug in infptrace.c. Below
is a patch. Could some kind soul apply it ?
Submitted by: "Gary J." <garyj@rks32.pcs.dec.com>
of the linker to enforce linking of modules in command line order it is
not possible to link gdb shared with -lcompat.
*HACK ALERT*
Removed -lcompat from LDADD and bring in the necessary functions out of
libcompat as a source module until the linker can be fixed.
This might be useful for debugging applications that use a special LDT.
However, printing of all segment registers is currently broken.
Don't print "last exception: " before the FPU opcode and pc, etc. The
opcode and pc, etc., are for the last FPU _instruction_.
Pass the saved exception status word to print_387_status() so that the
exception(s) that caused or will cause a trap can be seen. The kernel
has supported this since 1.1 or before. The kernel still clobbers the
tag word if a trap occurs.
Remove unused null function clear_regs().
cvs is not being used effectively for gdb. Our old changes get clobbered
and our new changes are mixed with "vendor" changes in the same updates
so they will be difficult to untangle for the next release of gdb. The
revision logs get spammed for each release of gdb.
the wild, slippery orgy commence!
Gary Jennejohn, too studly for his own good, has finally come through with
the new, improved gdb 4.13. This gdb features:
o kgdb support - if this works (and I urge folks to test it), we can
finally purge the old and hateful version of kgdb from our source
tree.
o attach/detach support. See comments in README.FreeBSD for more
details.
o Well, it's newer. Our previous version was 4.11.
Comments and flames to gj, of course! :-)
Thanks, Gary. Much appreciated. The previous state of gdb/kgdb has been a
thorn in all of our sides for some time..
Submitted by: gj
