CVS commit: src/sys/arch/amd64/amd64

[Michał Górny <mgorny%netbsd.org@localhost>]

Module Name:    src
Committed By:   mgorny
Date:           Tue Jun  4 16:30:19 UTC 2019

Modified Files:
        src/sys/arch/amd64/amd64: netbsd32_machdep.c

Log Message:
compat32: Implement PT_GETDBREGS and PT_SETDBREGS

Uncomment and improve the implementation of compat32 support for
PT_GETDBREGS and PT_SETDBREGS requests.

The new implementation uses x86_dbregs_read() and x86_dbregs_write()
function instead of accessing pcb directly.  While this might be
a little slower, it guarantees that the needed pcb field is allocated
correctly.

Furthermore, the code introduces necessary sanity checks
for PT_SETDBREGS arguments.


To generate a diff of this commit:
cvs rdiff -u -r1.122 -r1.123 src/sys/arch/amd64/amd64/netbsd32_machdep.c

Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.