KDB changes that will occur in 2.6.19-rc2
kaos at sgi.com
Tue Oct 10 00:51:47 PDT 2006
There are some big changes in the current kernel git tree that will
appear in 2.6.19-rc2. The git kernel no longer passes struct pt_regs
around, instead there is a get_irq_regs() function to obtain the
registers as of the last interrupt. If you have any code that passes
struct pt_regs then expect to spend some time fixing it on 2.6.19-rc2.
KDB passes pt_regs all over the place and will require lots of little
changes. I will take care of the main KDB patch, but if you maintain
any KDB patches yourself then you will have to remove struct pt_regs
from the parameter lists in your code.
Since this change affects a lot of the KDB functions, I will take this
opportunity to also remove the environment pointer from the KDB
functions. Only a couple of KDB internal functions actually need envp
and they can get the data from a global structure. Passing envp to
various functions is something I inherited from the previous KDB
maintainer and I was unwilling to remove it because it would break
external KDB patches. But since the pt_regs removal must be done
anyway, removing envp is not much extra pain.
For example, before 2.6.19-rc2:
kdb_ps(int argc, const char **argv, const char **envp, struct pt_regs *regs)
2.6.19-rc2 and later:
kdb_ps(int argc, const char **argv)
Use http://oss.sgi.com/ecartis to modify your settings or to unsubscribe.
More information about the kdb