Add ddbping example module to SUBDIR list.

New kernel example module written by Ayushi Sharma

Add new example kernel module: current_time

Submitted by Apurva Nandan.

Import a new example kernel module fopsmapper

fopsmapper - basic implementation of mmap with fileops fo_mmap

Submitted by Aditya Vardhan Padala.

Import new example kernel module ping_block

Subbmitted by Nisarg Joshi.

branches: 1.7.6;
Add a new example kernel module: mapper

Basic implementation of mmap.

Submitted by Akul Pillai.

branches: 1.6.2;
Introduce new example kernel module: panic_string

The panic_string module accepts input from a device file over the write(2)
system call.

It prints panic(9) message passed from user space, e.g.:

echo "Hello world" > /dev/panic

If a string is empty or contain only whitespaces it's ignored and panic(9)
is not triggered. If a non printable character is passed within the input
buffer, the rest of the string is ignored.

This module performs the sync(8) operation before panic(9) to flush cache.

Submitted by Harry Pantazis.
Simplified and cleaned up by myself.

Add new example loadable kernel module: readhappy_mpsafe

readhappy_mpsafe - demonstrates how to make a module MPSAFE

This module contains an additional helper program test_readhappy.c,
that is designed to exercise the kernel module with multiple threads.

Submitted by <Siddharth Muralee>

Add a new example kernel module

executor - basic implementation of callout and RUN_ONCE

While there, perform a small cleanup in README.

Patch by <Siddharth Muralee>
Polishing by myself.

Add new example kernel module: sysctl

sysctl - demonstrates adding a sysctl handle dynamically.

Patch by <Siddharth Muralee>
Polishing by myself.

branches: 1.2.10; 1.2.12;
Build without installation example lua kernel module: luareadhappy

branches: 1.1.2; 1.1.4; 1.1.6; 1.1.8;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

branches: 1.1.2; 1.1.4; 1.1.20;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

New kernel example module written by Ayushi Sharma

Add new example kernel module: current_time

Submitted by Apurva Nandan.

Import a new example kernel module fopsmapper

fopsmapper - basic implementation of mmap with fileops fo_mmap

Submitted by Aditya Vardhan Padala.

Improve wording

Document what does ping_block.

Import new example kernel module ping_block

Subbmitted by Nisarg Joshi.

branches: 1.9.6;
Add a new example kernel module: mapper

Basic implementation of mmap.

Submitted by Akul Pillai.

branches: 1.8.2;
Introduce new example kernel module: panic_string

The panic_string module accepts input from a device file over the write(2)
system call.

It prints panic(9) message passed from user space, e.g.:

echo "Hello world" > /dev/panic

If a string is empty or contain only whitespaces it's ignored and panic(9)
is not triggered. If a non printable character is passed within the input
buffer, the rest of the string is ignored.

This module performs the sync(8) operation before panic(9) to flush cache.

Submitted by Harry Pantazis.
Simplified and cleaned up by myself.

Add new example loadable kernel module: readhappy_mpsafe

readhappy_mpsafe - demonstrates how to make a module MPSAFE

This module contains an additional helper program test_readhappy.c,
that is designed to exercise the kernel module with multiple threads.

Submitted by <Siddharth Muralee>

Add a new example kernel module

executor - basic implementation of callout and RUN_ONCE

While there, perform a small cleanup in README.

Patch by <Siddharth Muralee>
Polishing by myself.

Add new example kernel module: sysctl

sysctl - demonstrates adding a sysctl handle dynamically.

Patch by <Siddharth Muralee>
Polishing by myself.

branches: 1.4.10; 1.4.12;
Add luareadhappy to the list.

branches: 1.3.2; 1.3.4; 1.3.6;
Even though this isn't a man page, it looks like one. So sort the
SEE ALSO section accordingly.

Fix up another internal reference to renamed module, and adjust some
English grammar.

A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

branches: 1.1.4;
Add new example kernel module: current_time

Submitted by Apurva Nandan.

branches: 1.2.4;
Switch to type generic PRIu macros

Fixes build on i386.

Add new example kernel module: current_time

Submitted by Apurva Nandan.

Example of a kernel module that registers DDB commands.

ddbping - restore the original narration of the example, NFCI

Adjust previous change so that it only replaces my home-grown define
for the end marker with the new official DDB_END_CMD marker that it
introduced. Undo the rest of that last change.

As the author of this example I'm pretty sure what example I wanted to
set and this narration order is an important part of it.

introduce DDB_END_CMD and replace more than 20 copies of the same
list of NULLs and 0. idea from rillig@.

all touched ports built, several booted.

branches: 1.1.2;
Example of a kernel module that registers DDB commands.

branches: 1.1.2;
Add a new example kernel module

executor - basic implementation of callout and RUN_ONCE

While there, perform a small cleanup in README.

Patch by <Siddharth Muralee>
Polishing by myself.

s/elasped/elapsed/ in comment.

branches: 1.2.32;
Use MPSAFE callouts.

branches: 1.1.2; 1.1.4;
Add a new example kernel module

executor - basic implementation of callout and RUN_ONCE

While there, perform a small cleanup in README.

Patch by <Siddharth Muralee>
Polishing by myself.

branches: 1.1.4;
Import a new example kernel module fopsmapper

fopsmapper - basic implementation of mmap with fileops fo_mmap

Submitted by Aditya Vardhan Padala.

modules/examples/fopsmapper: KNF, sprinkle comments

Missing: MP-safety; this is a kind of broken example.

branches: 1.2.4;
Fix CVS Id

Import a new example kernel module fopsmapper

fopsmapper - basic implementation of mmap with fileops fo_mmap

Submitted by Aditya Vardhan Padala.

modules/examples/fopsmapper: KNF, sprinkle comments

Missing: MP-safety; this is a kind of broken example.

branches: 1.2.4;
Avoid comparison between signed and unsigned integer

Cast PAGE_SIZE to size_t.

Import a new example kernel module fopsmapper

fopsmapper - basic implementation of mmap with fileops fo_mmap

Submitted by Aditya Vardhan Padala.

branches: 1.1.2; 1.1.4; 1.1.20;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

branches: 1.1.2; 1.1.4; 1.1.20;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

Resolve conflicts for lua 5.4.4 import.
Adjust various files for lua 5.4.4.

branches: 1.2.2; 1.2.4; 1.2.20; 1.2.54;
Fix instructions to match reality. (I renamed the example from the
original submitter, but didn't catch all internal references.)

A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

Bump default value of WARNS for modules from 3 to 5, and
explicitly set WARNS for modules that fail with WARNS=5.

Also, turn on -Wno-missing-noreturn for clang for some files.

At the moment, among ~ 360 modules,
- 2 (lua and zfs) need WARNS=0
- 1 (solaris) needs WARNS=1
- 136 need WARNS=3 (mostly due to sign-compare)
- 4 need WARNS=4
- others can be compiled with WARNS=5

Discussed on tech-kern.

branches: 1.1.2; 1.1.4; 1.1.12; 1.1.16; 1.1.20;
Add new example kernel module in Lua luareadhappy

This example presents a C module with its device (/dev entry) and its
content generator with algorithm defined in Lua state. The Lua state can
be changed dynamically from userland, without interruption of read(2) over
the device.

This is an example how to call Lua code from C.

branches: 1.1.2; 1.1.4; 1.1.12; 1.1.16;
Add new example kernel module in Lua luareadhappy

This example presents a C module with its device (/dev entry) and its
content generator with algorithm defined in Lua state. The Lua state can
be changed dynamically from userland, without interruption of read(2) over
the device.

This is an example how to call Lua code from C.

Align major numbers in example modules with sys/conf/majors

Patch submitted by: Aditya Vardhan Padala (silv3r)

branches: 1.1.2; 1.1.4; 1.1.12; 1.1.16; 1.1.20; 1.1.26;
Add new example kernel module in Lua luareadhappy

This example presents a C module with its device (/dev entry) and its
content generator with algorithm defined in Lua state. The Lua state can
be changed dynamically from userland, without interruption of read(2) over
the device.

This is an example how to call Lua code from C.

branches: 1.1.2; 1.1.6;
Add a new example kernel module: mapper

Basic implementation of mmap.

Submitted by Akul Pillai.

branches: 1.1.2; 1.1.6;
Add a new example kernel module: mapper

Basic implementation of mmap.

Submitted by Akul Pillai.

Fix fallout from previous uvm.h cleanup.

- pmap(9) needs uvm/uvm_extern.h.

- x86/pmap.h is not usable on its own; it is only usable if included
via uvm/uvm_extern.h (-> uvm/uvm_pmap.h -> machine/pmap.h).

- Make nvmm.h and nvmm_internal.h standalone.

Round of uvm.h cleanup.

The poorly named uvm.h is generally supposed to be for uvm-internal
users only.

- Narrow it to files that actually need it -- mostly files that need
to query whether curlwp is the pagedaemon, which should maybe be
exposed by an external header.

- Use uvm_extern.h where feasible and uvm_*.h for things not exposed
by it. We should split up uvm_extern.h but this will serve for now
to reduce the uvm.h dependencies.

- Use uvm_stat.h and #ifdef UVMHIST uvm.h for files that use
UVMHIST(ubchist), since ubchist is declared in uvm.h but the
reference evaporates if UVMHIST is not defined, so we reduce header
file dependencies.

- Make uvm_device.h and uvm_swap.h independently includable while
here.

ok chs@

Align major numbers in example modules with sys/conf/majors

Patch submitted by: Aditya Vardhan Padala (silv3r)

branches: 1.1.2; 1.1.6; 1.1.10;
Add a new example kernel module: mapper

Basic implementation of mmap.

Submitted by Akul Pillai.

branches: 1.1.2;
Introduce new example kernel module: panic_string

The panic_string module accepts input from a device file over the write(2)
system call.

It prints panic(9) message passed from user space, e.g.:

echo "Hello world" > /dev/panic

If a string is empty or contain only whitespaces it's ignored and panic(9)
is not triggered. If a non printable character is passed within the input
buffer, the rest of the string is ignored.

This module performs the sync(8) operation before panic(9) to flush cache.

Submitted by Harry Pantazis.
Simplified and cleaned up by myself.

fix various typos, mainly in comments, but also in man pages and log messages.

Align major numbers in example modules with sys/conf/majors

Patch submitted by: Aditya Vardhan Padala (silv3r)

branches: 1.1.2; 1.1.4; 1.1.10;
Introduce new example kernel module: panic_string

The panic_string module accepts input from a device file over the write(2)
system call.

It prints panic(9) message passed from user space, e.g.:

echo "Hello world" > /dev/panic

If a string is empty or contain only whitespaces it's ignored and panic(9)
is not triggered. If a non printable character is passed within the input
buffer, the rest of the string is ignored.

This module performs the sync(8) operation before panic(9) to flush cache.

Submitted by Harry Pantazis.
Simplified and cleaned up by myself.

branches: 1.1.2; 1.1.4; 1.1.20;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

branches: 1.2.2; 1.2.4; 1.2.20;
Fix RCS ID.

A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

remove debugging stuff accidentally committed.

New kernel example module written by Ayushi Sharma

Use ENOTTY as error for an unrecognized ioctl() code, rather than
"magic number" 1.


ok kamil@

Align major numbers in example modules with sys/conf/majors

Patch submitted by: Aditya Vardhan Padala (silv3r)

branches: 1.1.2; 1.1.4; 1.1.20; 1.1.24; 1.1.30;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

branches: 1.1.2; 1.1.4; 1.1.20;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

branches: 1.1.6;
Import new example kernel module ping_block

Subbmitted by Nisarg Joshi.

branches: 1.1.6;
Import new example kernel module ping_block

Subbmitted by Nisarg Joshi.

branches: 1.2.6;
Use ENOTTY as error for an unrecognized ioctl() code, rather than
"magic number" 1.


ok kamil@

Import new example kernel module ping_block

Subbmitted by Nisarg Joshi.

branches: 1.1.6;
Import new example kernel module ping_block

Subbmitted by Nisarg Joshi.

New kernel example module written by Ayushi Sharma

New kernel example module written by Ayushi Sharma

driver(9): devsw_detach never fails. Make it return void.

Prune a whole lotta dead branches as a result of this. (Some logic
calling this is also wrong for other reasons; devsw_detach is final
-- you should never have any reason to decide to roll it back. To be
cleaned up in subsequent commits...)

XXX kernel ABI change to devsw_detach signature requires bump

s/&&/&/ and also return POLLRDNORM (pointed out by joerg@)

include sys/lwp.h and fix the build.

New kernel example module written by Ayushi Sharma

branches: 1.1.2; 1.1.4; 1.1.20;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

branches: 1.1.2; 1.1.4; 1.1.20;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

Bump default value of WARNS for modules from 3 to 5, and
explicitly set WARNS for modules that fail with WARNS=5.

Also, turn on -Wno-missing-noreturn for clang for some files.

At the moment, among ~ 360 modules,
- 2 (lua and zfs) need WARNS=0
- 1 (solaris) needs WARNS=1
- 136 need WARNS=3 (mostly due to sign-compare)
- 4 need WARNS=4
- others can be compiled with WARNS=5

Discussed on tech-kern.

branches: 1.1.2; 1.1.4; 1.1.20; 1.1.24;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

branches: 1.1.2; 1.1.4; 1.1.20;
A set of more comprehensive example kernel modules to replace our
previous single example.

These examples were provided by Kamil Rytarowski.

XXX These modules are built as part of a system build, but they
XXX are NOT installed in $DESTDIR.

Bump default value of WARNS for modules from 3 to 5, and
explicitly set WARNS for modules that fail with WARNS=5.

Also, turn on -Wno-missing-noreturn for clang for some files.

At the moment, among ~ 360 modules,
- 2 (lua and zfs) need WARNS=0
- 1 (solaris) needs WARNS=1
- 136 need WARNS=3 (mostly due to sign-compare)
- 4 need WARNS=4
- others can be compiled with WARNS=5

Discussed on tech-kern.

branches: 1.1.2; 1.1.4;

Add new example loadable kernel module: readhappy_mpsafe

readhappy_mpsafe - demonstrates how to make a module MPSAFE

This module contains an additional helper program test_readhappy.c,
that is designed to exercise the kernel module with multiple threads.

Submitted by <Siddharth Muralee>

Grammar and spelling fixes, mainly in comments. A few in documentation,
logging, test description, and SCSI ASC/ASCQ assignment descriptions.

branches: 1.2.30;
Align major numbers in example modules with sys/conf/majors

Patch submitted by: Aditya Vardhan Padala (silv3r)

branches: 1.1.2; 1.1.4; 1.1.10;

Add new example loadable kernel module: readhappy_mpsafe

readhappy_mpsafe - demonstrates how to make a module MPSAFE

This module contains an additional helper program test_readhappy.c,
that is designed to exercise the kernel module with multiple threads.

Submitted by <Siddharth Muralee>

branches: 1.1.2;

Add new example loadable kernel module: readhappy_mpsafe

readhappy_mpsafe - demonstrates how to make a module MPSAFE

This module contains an additional helper program test_readhappy.c,
that is designed to exercise the kernel module with multiple threads.

Submitted by <Siddharth Muralee>

branches: 1.1.2;
Add new example kernel module: sysctl

sysctl - demonstrates adding a sysctl handle dynamically.

Patch by <Siddharth Muralee>
Polishing by myself.

Add some \n's to the end of some printf()s.

branches: 1.1.2; 1.1.16; 1.1.18;
Add new example kernel module: sysctl

sysctl - demonstrates adding a sysctl handle dynamically.

Patch by <Siddharth Muralee>
Polishing by myself.