remove prototypes with no matching function

correct indentation

no functional change, found by smatch warnings
ok miod@ bluhm@

Change function definitions using the identifier-list form used in the
1st edition of Kernighan and Ritchie's The C Programming Language, to
that of the parameter-type-list form described in the ANSI X3.159-1989
standard.

In ISO/IEC 9899:2023 drafts, there is only one form of function definition.
"N2432 Remove support for function definitions with identifier lists".

ok kettenis@

Constify struct cfattach.

ok visa@ a long time ago

change wsdisplay attribute type from long to uint32_t

miod explained it was initially a long as it was thought drivers may
need to allocate storage but in practice they don't need more than
32 bits for an attribute.

suggested and reviewed by miod@

Remove almost unused `flags' argument of suser().

The account flag `ASU' will no longer be set but that makes suser()
mpsafe since it no longer mess with a per-process field.

No objection from millert@, ok tedu@, bluhm@

Delete unnecessary <sys/file.h> includes

ok millert@ krw@

Rename Debugger() into db_enter().

Using a name with the 'db_' prefix makes it invisible from the dynamic
profiler.

ok deraadt@, kettenis@, visa@

Sync no-argument function declaration and definition by adding (void).
ok mpi@

Use C99 named initializers for struct wsdisplay_accessops fields.
No functional change.

Make sure that, when a particular mapchar() can't find a proper glyph for the
requested character in the font it is using, it suggests a question mark
character, instead of a space, so that the existence of the non-representable
character becomes visible.

Note that this is consistent with pcdisplay which suggests a diamond for
missing glyphs.

Allow tty drivers to request larger buffers at attach time using a
max-baud-rate hint. Adjust TTYHOG (the nearly full logic) to this new
situation. The larger buffers are required by the very high speed
KDDI devices in Japan (CF com, or USB ucom) so those are the only two
drivers which currently ask for a larger buffer size.
ok yasuoka miod

Some of the line disciplines want to check for suser. Better to pass them
a process instead of using curproc. ok deraadt

Every selwakeup() should have a matching KNOTE() (even if kqueue isn't
supported it doesn't do any harm), so put the KNOTE() in selwakeup() itself and
remove it from any occurences where both are used, except one for kqueue itself
and one in sys_pipe.c (where the selwakeup is under a PIPE_SEL flag).

Based on a diff from tedu.

ok deraadt

Add missing KNOTE() calls after selwakeup(), until we decide if the KNOTE()
calls can go directly into selwakeup() safely
long discussion with nicm, murmers of consent from tedu and miod, noone
else seems to care of kqueue is busted as long as it makes their sockets
move data fast... pretty sad.

Change the wsdisplay_emulops return types from void to int; emulops will now
return zero on success and nonzero on failure.
This commit only performs mechanical changes for the existing emulops to
always return zero.

Remove eeprom.h.

Remove bsd_openprom.h.

sick of extra static messing up tracebacks; ok miod

For unsupported (yet) Expert3D style frame buffers, attach pcons and attach
a really dumb wsdisplay to pcons, so that wskbd/wsmouse input drivers can be
used for input, and prom for output.

This is a band-aid for the release, so that people with such frame buffers
do not need to unplug them or switch to serial console to install OpenBSD.

Probably not the best way to do this, but this one has a minimal footprint
and no tentacles in wscons.

ok deraadt@

Remove unused hooks for periodic pcons polling.

for pcons tty and kernel console (ie. boot -a) input, replace prom ^H
with ^? as that is what we have standardized on for all delete keys.
this got missed, meaning boot -a and RAMDISK console tty were gross.
ok miod

Merge tty_attach() in ttymalloc() and tty_detach() in ttyfree(). The need for
separate tty registering is gone now that sparc has switched to wscons, and
this makes the code less error-prone.

Also, remove tests for ttymalloc() failure, since it uses M_WAITOK.

ok millert@ deraadt@, tested by various people as well besides me...

change arguments to suser. suser now takes the process, and a flags
argument. old cred only calls user suser_ucred. this will allow future
work to more flexibly implement the idea of a root process. looks like
something i saw in freebsd, but a little different.
use of suser_ucred vs suser in file system code should be looked at again,
for the moment semantics remain unchanged.
review and input from art@ testing and further review miod@

Final __P removal plus some cosmetic fixups

First round of __P removal in sys

branches: 1.3.2;
db_console is declared in <ddb/db_var.h>. Fix a typo while there, too.

branches: 1.2.4;
Don't forget tty_attach. Should fix the timeout related panics.

Lot of stuff... Some from NetBSD, some from OpenBSD, minor modifications

correct indentation

no functional change, found by smatch warnings
ok miod@ bluhm@

Change function definitions using the identifier-list form used in the
1st edition of Kernighan and Ritchie's The C Programming Language, to
that of the parameter-type-list form described in the ANSI X3.159-1989
standard.

In ISO/IEC 9899:2023 drafts, there is only one form of function definition.
"N2432 Remove support for function definitions with identifier lists".

ok kettenis@

Constify struct cfattach.

ok visa@ a long time ago

change wsdisplay attribute type from long to uint32_t

miod explained it was initially a long as it was thought drivers may
need to allocate storage but in practice they don't need more than
32 bits for an attribute.

suggested and reviewed by miod@

Remove almost unused `flags' argument of suser().

The account flag `ASU' will no longer be set but that makes suser()
mpsafe since it no longer mess with a per-process field.

No objection from millert@, ok tedu@, bluhm@

Delete unnecessary <sys/file.h> includes

ok millert@ krw@

Rename Debugger() into db_enter().

Using a name with the 'db_' prefix makes it invisible from the dynamic
profiler.

ok deraadt@, kettenis@, visa@

Sync no-argument function declaration and definition by adding (void).
ok mpi@

Use C99 named initializers for struct wsdisplay_accessops fields.
No functional change.

Make sure that, when a particular mapchar() can't find a proper glyph for the
requested character in the font it is using, it suggests a question mark
character, instead of a space, so that the existence of the non-representable
character becomes visible.

Note that this is consistent with pcdisplay which suggests a diamond for
missing glyphs.

Allow tty drivers to request larger buffers at attach time using a
max-baud-rate hint. Adjust TTYHOG (the nearly full logic) to this new
situation. The larger buffers are required by the very high speed
KDDI devices in Japan (CF com, or USB ucom) so those are the only two
drivers which currently ask for a larger buffer size.
ok yasuoka miod

Some of the line disciplines want to check for suser. Better to pass them
a process instead of using curproc. ok deraadt

Every selwakeup() should have a matching KNOTE() (even if kqueue isn't
supported it doesn't do any harm), so put the KNOTE() in selwakeup() itself and
remove it from any occurences where both are used, except one for kqueue itself
and one in sys_pipe.c (where the selwakeup is under a PIPE_SEL flag).

Based on a diff from tedu.

ok deraadt

Add missing KNOTE() calls after selwakeup(), until we decide if the KNOTE()
calls can go directly into selwakeup() safely
long discussion with nicm, murmers of consent from tedu and miod, noone
else seems to care of kqueue is busted as long as it makes their sockets
move data fast... pretty sad.

Change the wsdisplay_emulops return types from void to int; emulops will now
return zero on success and nonzero on failure.
This commit only performs mechanical changes for the existing emulops to
always return zero.

Remove eeprom.h.

Remove bsd_openprom.h.

sick of extra static messing up tracebacks; ok miod

For unsupported (yet) Expert3D style frame buffers, attach pcons and attach
a really dumb wsdisplay to pcons, so that wskbd/wsmouse input drivers can be
used for input, and prom for output.

This is a band-aid for the release, so that people with such frame buffers
do not need to unplug them or switch to serial console to install OpenBSD.

Probably not the best way to do this, but this one has a minimal footprint
and no tentacles in wscons.

ok deraadt@

Remove unused hooks for periodic pcons polling.

for pcons tty and kernel console (ie. boot -a) input, replace prom ^H
with ^? as that is what we have standardized on for all delete keys.
this got missed, meaning boot -a and RAMDISK console tty were gross.
ok miod

Merge tty_attach() in ttymalloc() and tty_detach() in ttyfree(). The need for
separate tty registering is gone now that sparc has switched to wscons, and
this makes the code less error-prone.

Also, remove tests for ttymalloc() failure, since it uses M_WAITOK.

ok millert@ deraadt@, tested by various people as well besides me...

change arguments to suser. suser now takes the process, and a flags
argument. old cred only calls user suser_ucred. this will allow future
work to more flexibly implement the idea of a root process. looks like
something i saw in freebsd, but a little different.
use of suser_ucred vs suser in file system code should be looked at again,
for the moment semantics remain unchanged.
review and input from art@ testing and further review miod@

Final __P removal plus some cosmetic fixups

First round of __P removal in sys

branches: 1.3.2;
db_console is declared in <ddb/db_var.h>. Fix a typo while there, too.

branches: 1.2.4;
Don't forget tty_attach. Should fix the timeout related panics.

Lot of stuff... Some from NetBSD, some from OpenBSD, minor modifications

Change function definitions using the identifier-list form used in the
1st edition of Kernighan and Ritchie's The C Programming Language, to
that of the parameter-type-list form described in the ANSI X3.159-1989
standard.

In ISO/IEC 9899:2023 drafts, there is only one form of function definition.
"N2432 Remove support for function definitions with identifier lists".

ok kettenis@

Constify struct cfattach.

ok visa@ a long time ago

change wsdisplay attribute type from long to uint32_t

miod explained it was initially a long as it was thought drivers may
need to allocate storage but in practice they don't need more than
32 bits for an attribute.

suggested and reviewed by miod@

Remove almost unused `flags' argument of suser().

The account flag `ASU' will no longer be set but that makes suser()
mpsafe since it no longer mess with a per-process field.

No objection from millert@, ok tedu@, bluhm@

Delete unnecessary <sys/file.h> includes

ok millert@ krw@

Rename Debugger() into db_enter().

Using a name with the 'db_' prefix makes it invisible from the dynamic
profiler.

ok deraadt@, kettenis@, visa@

Sync no-argument function declaration and definition by adding (void).
ok mpi@

Use C99 named initializers for struct wsdisplay_accessops fields.
No functional change.

Make sure that, when a particular mapchar() can't find a proper glyph for the
requested character in the font it is using, it suggests a question mark
character, instead of a space, so that the existence of the non-representable
character becomes visible.

Note that this is consistent with pcdisplay which suggests a diamond for
missing glyphs.

Allow tty drivers to request larger buffers at attach time using a
max-baud-rate hint. Adjust TTYHOG (the nearly full logic) to this new
situation. The larger buffers are required by the very high speed
KDDI devices in Japan (CF com, or USB ucom) so those are the only two
drivers which currently ask for a larger buffer size.
ok yasuoka miod

Some of the line disciplines want to check for suser. Better to pass them
a process instead of using curproc. ok deraadt

Every selwakeup() should have a matching KNOTE() (even if kqueue isn't
supported it doesn't do any harm), so put the KNOTE() in selwakeup() itself and
remove it from any occurences where both are used, except one for kqueue itself
and one in sys_pipe.c (where the selwakeup is under a PIPE_SEL flag).

Based on a diff from tedu.

ok deraadt

Add missing KNOTE() calls after selwakeup(), until we decide if the KNOTE()
calls can go directly into selwakeup() safely
long discussion with nicm, murmers of consent from tedu and miod, noone
else seems to care of kqueue is busted as long as it makes their sockets
move data fast... pretty sad.

Change the wsdisplay_emulops return types from void to int; emulops will now
return zero on success and nonzero on failure.
This commit only performs mechanical changes for the existing emulops to
always return zero.

Remove eeprom.h.

Remove bsd_openprom.h.

sick of extra static messing up tracebacks; ok miod

For unsupported (yet) Expert3D style frame buffers, attach pcons and attach
a really dumb wsdisplay to pcons, so that wskbd/wsmouse input drivers can be
used for input, and prom for output.

This is a band-aid for the release, so that people with such frame buffers
do not need to unplug them or switch to serial console to install OpenBSD.

Probably not the best way to do this, but this one has a minimal footprint
and no tentacles in wscons.

ok deraadt@

Remove unused hooks for periodic pcons polling.

for pcons tty and kernel console (ie. boot -a) input, replace prom ^H
with ^? as that is what we have standardized on for all delete keys.
this got missed, meaning boot -a and RAMDISK console tty were gross.
ok miod

Merge tty_attach() in ttymalloc() and tty_detach() in ttyfree(). The need for
separate tty registering is gone now that sparc has switched to wscons, and
this makes the code less error-prone.

Also, remove tests for ttymalloc() failure, since it uses M_WAITOK.

ok millert@ deraadt@, tested by various people as well besides me...

change arguments to suser. suser now takes the process, and a flags
argument. old cred only calls user suser_ucred. this will allow future
work to more flexibly implement the idea of a root process. looks like
something i saw in freebsd, but a little different.
use of suser_ucred vs suser in file system code should be looked at again,
for the moment semantics remain unchanged.
review and input from art@ testing and further review miod@

Final __P removal plus some cosmetic fixups

First round of __P removal in sys

branches: 1.3.2;
db_console is declared in <ddb/db_var.h>. Fix a typo while there, too.

branches: 1.2.4;
Don't forget tty_attach. Should fix the timeout related panics.

Lot of stuff... Some from NetBSD, some from OpenBSD, minor modifications

Constify struct cfattach.

ok visa@ a long time ago

change wsdisplay attribute type from long to uint32_t

miod explained it was initially a long as it was thought drivers may
need to allocate storage but in practice they don't need more than
32 bits for an attribute.

suggested and reviewed by miod@

Remove almost unused `flags' argument of suser().

The account flag `ASU' will no longer be set but that makes suser()
mpsafe since it no longer mess with a per-process field.

No objection from millert@, ok tedu@, bluhm@

Delete unnecessary <sys/file.h> includes

ok millert@ krw@

Rename Debugger() into db_enter().

Using a name with the 'db_' prefix makes it invisible from the dynamic
profiler.

ok deraadt@, kettenis@, visa@

Sync no-argument function declaration and definition by adding (void).
ok mpi@

Use C99 named initializers for struct wsdisplay_accessops fields.
No functional change.

Make sure that, when a particular mapchar() can't find a proper glyph for the
requested character in the font it is using, it suggests a question mark
character, instead of a space, so that the existence of the non-representable
character becomes visible.

Note that this is consistent with pcdisplay which suggests a diamond for
missing glyphs.

Allow tty drivers to request larger buffers at attach time using a
max-baud-rate hint. Adjust TTYHOG (the nearly full logic) to this new
situation. The larger buffers are required by the very high speed
KDDI devices in Japan (CF com, or USB ucom) so those are the only two
drivers which currently ask for a larger buffer size.
ok yasuoka miod

Some of the line disciplines want to check for suser. Better to pass them
a process instead of using curproc. ok deraadt

Every selwakeup() should have a matching KNOTE() (even if kqueue isn't
supported it doesn't do any harm), so put the KNOTE() in selwakeup() itself and
remove it from any occurences where both are used, except one for kqueue itself
and one in sys_pipe.c (where the selwakeup is under a PIPE_SEL flag).

Based on a diff from tedu.

ok deraadt

Add missing KNOTE() calls after selwakeup(), until we decide if the KNOTE()
calls can go directly into selwakeup() safely
long discussion with nicm, murmers of consent from tedu and miod, noone
else seems to care of kqueue is busted as long as it makes their sockets
move data fast... pretty sad.

Change the wsdisplay_emulops return types from void to int; emulops will now
return zero on success and nonzero on failure.
This commit only performs mechanical changes for the existing emulops to
always return zero.

Remove eeprom.h.

Remove bsd_openprom.h.

sick of extra static messing up tracebacks; ok miod

For unsupported (yet) Expert3D style frame buffers, attach pcons and attach
a really dumb wsdisplay to pcons, so that wskbd/wsmouse input drivers can be
used for input, and prom for output.

This is a band-aid for the release, so that people with such frame buffers
do not need to unplug them or switch to serial console to install OpenBSD.

Probably not the best way to do this, but this one has a minimal footprint
and no tentacles in wscons.

ok deraadt@

Remove unused hooks for periodic pcons polling.

for pcons tty and kernel console (ie. boot -a) input, replace prom ^H
with ^? as that is what we have standardized on for all delete keys.
this got missed, meaning boot -a and RAMDISK console tty were gross.
ok miod

Merge tty_attach() in ttymalloc() and tty_detach() in ttyfree(). The need for
separate tty registering is gone now that sparc has switched to wscons, and
this makes the code less error-prone.

Also, remove tests for ttymalloc() failure, since it uses M_WAITOK.

ok millert@ deraadt@, tested by various people as well besides me...

change arguments to suser. suser now takes the process, and a flags
argument. old cred only calls user suser_ucred. this will allow future
work to more flexibly implement the idea of a root process. looks like
something i saw in freebsd, but a little different.
use of suser_ucred vs suser in file system code should be looked at again,
for the moment semantics remain unchanged.
review and input from art@ testing and further review miod@

Final __P removal plus some cosmetic fixups

First round of __P removal in sys

branches: 1.3.2;
db_console is declared in <ddb/db_var.h>. Fix a typo while there, too.

branches: 1.2.4;
Don't forget tty_attach. Should fix the timeout related panics.

Lot of stuff... Some from NetBSD, some from OpenBSD, minor modifications

change wsdisplay attribute type from long to uint32_t

miod explained it was initially a long as it was thought drivers may
need to allocate storage but in practice they don't need more than
32 bits for an attribute.

suggested and reviewed by miod@

Remove almost unused `flags' argument of suser().

The account flag `ASU' will no longer be set but that makes suser()
mpsafe since it no longer mess with a per-process field.

No objection from millert@, ok tedu@, bluhm@

Delete unnecessary <sys/file.h> includes

ok millert@ krw@

Rename Debugger() into db_enter().

Using a name with the 'db_' prefix makes it invisible from the dynamic
profiler.

ok deraadt@, kettenis@, visa@

Sync no-argument function declaration and definition by adding (void).
ok mpi@

Use C99 named initializers for struct wsdisplay_accessops fields.
No functional change.

Make sure that, when a particular mapchar() can't find a proper glyph for the
requested character in the font it is using, it suggests a question mark
character, instead of a space, so that the existence of the non-representable
character becomes visible.

Note that this is consistent with pcdisplay which suggests a diamond for
missing glyphs.

Allow tty drivers to request larger buffers at attach time using a
max-baud-rate hint. Adjust TTYHOG (the nearly full logic) to this new
situation. The larger buffers are required by the very high speed
KDDI devices in Japan (CF com, or USB ucom) so those are the only two
drivers which currently ask for a larger buffer size.
ok yasuoka miod

Some of the line disciplines want to check for suser. Better to pass them
a process instead of using curproc. ok deraadt

Every selwakeup() should have a matching KNOTE() (even if kqueue isn't
supported it doesn't do any harm), so put the KNOTE() in selwakeup() itself and
remove it from any occurences where both are used, except one for kqueue itself
and one in sys_pipe.c (where the selwakeup is under a PIPE_SEL flag).

Based on a diff from tedu.

ok deraadt

Add missing KNOTE() calls after selwakeup(), until we decide if the KNOTE()
calls can go directly into selwakeup() safely
long discussion with nicm, murmers of consent from tedu and miod, noone
else seems to care of kqueue is busted as long as it makes their sockets
move data fast... pretty sad.

Change the wsdisplay_emulops return types from void to int; emulops will now
return zero on success and nonzero on failure.
This commit only performs mechanical changes for the existing emulops to
always return zero.

Remove eeprom.h.

Remove bsd_openprom.h.

sick of extra static messing up tracebacks; ok miod

For unsupported (yet) Expert3D style frame buffers, attach pcons and attach
a really dumb wsdisplay to pcons, so that wskbd/wsmouse input drivers can be
used for input, and prom for output.

This is a band-aid for the release, so that people with such frame buffers
do not need to unplug them or switch to serial console to install OpenBSD.

Probably not the best way to do this, but this one has a minimal footprint
and no tentacles in wscons.

ok deraadt@

Remove unused hooks for periodic pcons polling.

for pcons tty and kernel console (ie. boot -a) input, replace prom ^H
with ^? as that is what we have standardized on for all delete keys.
this got missed, meaning boot -a and RAMDISK console tty were gross.
ok miod

Merge tty_attach() in ttymalloc() and tty_detach() in ttyfree(). The need for
separate tty registering is gone now that sparc has switched to wscons, and
this makes the code less error-prone.

Also, remove tests for ttymalloc() failure, since it uses M_WAITOK.

ok millert@ deraadt@, tested by various people as well besides me...

change arguments to suser. suser now takes the process, and a flags
argument. old cred only calls user suser_ucred. this will allow future
work to more flexibly implement the idea of a root process. looks like
something i saw in freebsd, but a little different.
use of suser_ucred vs suser in file system code should be looked at again,
for the moment semantics remain unchanged.
review and input from art@ testing and further review miod@

Final __P removal plus some cosmetic fixups

First round of __P removal in sys

branches: 1.3.2;
db_console is declared in <ddb/db_var.h>. Fix a typo while there, too.

branches: 1.2.4;
Don't forget tty_attach. Should fix the timeout related panics.

Lot of stuff... Some from NetBSD, some from OpenBSD, minor modifications

Remove almost unused `flags' argument of suser().

The account flag `ASU' will no longer be set but that makes suser()
mpsafe since it no longer mess with a per-process field.

No objection from millert@, ok tedu@, bluhm@

Delete unnecessary <sys/file.h> includes

ok millert@ krw@

Rename Debugger() into db_enter().

Using a name with the 'db_' prefix makes it invisible from the dynamic
profiler.

ok deraadt@, kettenis@, visa@

Sync no-argument function declaration and definition by adding (void).
ok mpi@

Use C99 named initializers for struct wsdisplay_accessops fields.
No functional change.

Make sure that, when a particular mapchar() can't find a proper glyph for the
requested character in the font it is using, it suggests a question mark
character, instead of a space, so that the existence of the non-representable
character becomes visible.

Note that this is consistent with pcdisplay which suggests a diamond for
missing glyphs.

Allow tty drivers to request larger buffers at attach time using a
max-baud-rate hint. Adjust TTYHOG (the nearly full logic) to this new
situation. The larger buffers are required by the very high speed
KDDI devices in Japan (CF com, or USB ucom) so those are the only two
drivers which currently ask for a larger buffer size.
ok yasuoka miod

Some of the line disciplines want to check for suser. Better to pass them
a process instead of using curproc. ok deraadt

Every selwakeup() should have a matching KNOTE() (even if kqueue isn't
supported it doesn't do any harm), so put the KNOTE() in selwakeup() itself and
remove it from any occurences where both are used, except one for kqueue itself
and one in sys_pipe.c (where the selwakeup is under a PIPE_SEL flag).

Based on a diff from tedu.

ok deraadt

Add missing KNOTE() calls after selwakeup(), until we decide if the KNOTE()
calls can go directly into selwakeup() safely
long discussion with nicm, murmers of consent from tedu and miod, noone
else seems to care of kqueue is busted as long as it makes their sockets
move data fast... pretty sad.

Change the wsdisplay_emulops return types from void to int; emulops will now
return zero on success and nonzero on failure.
This commit only performs mechanical changes for the existing emulops to
always return zero.

Remove eeprom.h.

Remove bsd_openprom.h.

sick of extra static messing up tracebacks; ok miod

For unsupported (yet) Expert3D style frame buffers, attach pcons and attach
a really dumb wsdisplay to pcons, so that wskbd/wsmouse input drivers can be
used for input, and prom for output.

This is a band-aid for the release, so that people with such frame buffers
do not need to unplug them or switch to serial console to install OpenBSD.

Probably not the best way to do this, but this one has a minimal footprint
and no tentacles in wscons.

ok deraadt@

Remove unused hooks for periodic pcons polling.

for pcons tty and kernel console (ie. boot -a) input, replace prom ^H
with ^? as that is what we have standardized on for all delete keys.
this got missed, meaning boot -a and RAMDISK console tty were gross.
ok miod

Merge tty_attach() in ttymalloc() and tty_detach() in ttyfree(). The need for
separate tty registering is gone now that sparc has switched to wscons, and
this makes the code less error-prone.

Also, remove tests for ttymalloc() failure, since it uses M_WAITOK.

ok millert@ deraadt@, tested by various people as well besides me...

change arguments to suser. suser now takes the process, and a flags
argument. old cred only calls user suser_ucred. this will allow future
work to more flexibly implement the idea of a root process. looks like
something i saw in freebsd, but a little different.
use of suser_ucred vs suser in file system code should be looked at again,
for the moment semantics remain unchanged.
review and input from art@ testing and further review miod@

Final __P removal plus some cosmetic fixups

First round of __P removal in sys

branches: 1.3.2;
db_console is declared in <ddb/db_var.h>. Fix a typo while there, too.

branches: 1.2.4;
Don't forget tty_attach. Should fix the timeout related panics.

Lot of stuff... Some from NetBSD, some from OpenBSD, minor modifications

Delete unnecessary <sys/file.h> includes

ok millert@ krw@

Rename Debugger() into db_enter().

Using a name with the 'db_' prefix makes it invisible from the dynamic
profiler.

ok deraadt@, kettenis@, visa@

Sync no-argument function declaration and definition by adding (void).
ok mpi@

Use C99 named initializers for struct wsdisplay_accessops fields.
No functional change.

Make sure that, when a particular mapchar() can't find a proper glyph for the
requested character in the font it is using, it suggests a question mark
character, instead of a space, so that the existence of the non-representable
character becomes visible.

Note that this is consistent with pcdisplay which suggests a diamond for
missing glyphs.

Allow tty drivers to request larger buffers at attach time using a
max-baud-rate hint. Adjust TTYHOG (the nearly full logic) to this new
situation. The larger buffers are required by the very high speed
KDDI devices in Japan (CF com, or USB ucom) so those are the only two
drivers which currently ask for a larger buffer size.
ok yasuoka miod

Some of the line disciplines want to check for suser. Better to pass them
a process instead of using curproc. ok deraadt

Every selwakeup() should have a matching KNOTE() (even if kqueue isn't
supported it doesn't do any harm), so put the KNOTE() in selwakeup() itself and
remove it from any occurences where both are used, except one for kqueue itself
and one in sys_pipe.c (where the selwakeup is under a PIPE_SEL flag).

Based on a diff from tedu.

ok deraadt

Add missing KNOTE() calls after selwakeup(), until we decide if the KNOTE()
calls can go directly into selwakeup() safely
long discussion with nicm, murmers of consent from tedu and miod, noone
else seems to care of kqueue is busted as long as it makes their sockets
move data fast... pretty sad.

Change the wsdisplay_emulops return types from void to int; emulops will now
return zero on success and nonzero on failure.
This commit only performs mechanical changes for the existing emulops to
always return zero.

Remove eeprom.h.

Remove bsd_openprom.h.

sick of extra static messing up tracebacks; ok miod

For unsupported (yet) Expert3D style frame buffers, attach pcons and attach
a really dumb wsdisplay to pcons, so that wskbd/wsmouse input drivers can be
used for input, and prom for output.

This is a band-aid for the release, so that people with such frame buffers
do not need to unplug them or switch to serial console to install OpenBSD.

Probably not the best way to do this, but this one has a minimal footprint
and no tentacles in wscons.

ok deraadt@

Remove unused hooks for periodic pcons polling.

for pcons tty and kernel console (ie. boot -a) input, replace prom ^H
with ^? as that is what we have standardized on for all delete keys.
this got missed, meaning boot -a and RAMDISK console tty were gross.
ok miod

Merge tty_attach() in ttymalloc() and tty_detach() in ttyfree(). The need for
separate tty registering is gone now that sparc has switched to wscons, and
this makes the code less error-prone.

Also, remove tests for ttymalloc() failure, since it uses M_WAITOK.

ok millert@ deraadt@, tested by various people as well besides me...

change arguments to suser. suser now takes the process, and a flags
argument. old cred only calls user suser_ucred. this will allow future
work to more flexibly implement the idea of a root process. looks like
something i saw in freebsd, but a little different.
use of suser_ucred vs suser in file system code should be looked at again,
for the moment semantics remain unchanged.
review and input from art@ testing and further review miod@

Final __P removal plus some cosmetic fixups

First round of __P removal in sys

branches: 1.3.2;
db_console is declared in <ddb/db_var.h>. Fix a typo while there, too.

branches: 1.2.4;
Don't forget tty_attach. Should fix the timeout related panics.

Lot of stuff... Some from NetBSD, some from OpenBSD, minor modifications