CVS commit: [netbsd-9] src/sys/compat

["Martin Husemann" <martin%netbsd.org@localhost>]

Module Name:    src
Committed By:   martin
Date:           Tue Nov 19 13:36:25 UTC 2019

Modified Files:
        src/sys/compat/netbsd32 [netbsd-9]: netbsd32.h
        src/sys/compat/sys [netbsd-9]: siginfo.h

Log Message:
Pull up following revision(s) (requested by rin in ticket #457):

        sys/compat/sys/siginfo.h: revision 1.9
        sys/compat/netbsd32/netbsd32.h: revision 1.131

8-byte objects on i386 or arm-oabi are aligned in 4-byte boundary.

Therefore, we must use __attribute__((__aligned__(4))) for them.
netbsd32_{,u}int64 are provided for this purpose. However, we
cannot use it in <compat/sys/siginfo.h> due to circular dependency
b/w <machine/netbsd32_machdep.h>.

In order to distangle it, we choose here to have a duplicate type,
netbsd32_siginfo_uint64, in <compat/sys/siginfo.h>. The equivalence
with netbsd32_uint64 is asserted in <compat/netbsd32/netbsd32.h>.

Now, gdb for i386 works again on amd64 kernel.

Based on patch provided by kamil. Thanks!

XXX
pullup to netbsd-9


To generate a diff of this commit:
cvs rdiff -u -r1.123 -r1.123.4.1 src/sys/compat/netbsd32/netbsd32.h
cvs rdiff -u -r1.7.2.1 -r1.7.2.2 src/sys/compat/sys/siginfo.h

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