Author :
jsg
Date :
2024-12-21 03:10:46
Hash :f1f9609d Message :ddb was not part of Mach until 3.0
"The Mach kernel has a builtin kernel debugger (kdb) based on adb"
Mach: A New Kernel Foundation For UNIX Development, USENIX Summer 1986
"The new kernel debugger has most of the features of the old kdb, but
with a more rational (gdb-like) syntax."
Mach 3.0 (mk83), ddb.man
Mark W. Eichin explains how ddb came to be in 386BSD 0.1 in
a June 1992 post to comp.unix.bsd
https://groups.google.com/g/comp.unix.bsd/c/LY3hbHwjdG0/m/ca1hS0Hp5HcJ
jsg