- Determine KERN_AS automatically depending on whether OPT_MODULAR is
set or not, in the same way as libcompat.

- Specify OPT_MODULAR in the port Makefile instead of KERN_AS.

Now, KERN_AS=library is used for kernels without module(7) for all ports.

OK christos

Start using the kernel ld script.

There are still issues with the .init placement and ./build.sh creating bad
images.

Compile NetBSD/userland without CTF for the linker doesn't allow for a single
file compiled without CTF

branches: 1.41.2;
Make NetBSD/usermode link again!

- Allow multiple .BEGIN targets
- Make their protection consistent

Tweak previous.

Echo exact objects (swap*.o etc.) when linking kernel.

Define ${LINKSCRIPT} in one place.

${KERN_LDSCRIPT} -> ${KERNLDSCRIPT}

branches: 1.35.2;
Use LINKSCRIPT.

use MACHINE_CPU instead of uname -p; create symlink for arm headers

branches: 1.33.6;
fix include dir
add some dependencies

branches: 1.32.2;
Move i386 and amd64 usermode configurations to their respective directories
and make the usermode kernels buildalbe under build.sh.

The resulting kernels are build and packaged correctly as are the associated
modules.

Move target/${USERMODE_CPU} to target/${MACHINE_CPU} to more clearly
distinguish between CPU specific ones and machine specific ones.

Add AMD64 target for NetBSD/usermode next to i386 and reorganize source tree
to have port specific stuff in arch/usermode/target/<port>/

Split machdep.c into a MI part and a MD part.

Get rid of MAP_NOSYSCALLS usage; now this relies on a separate kmod that
you can get here: http://www.netbsd.org/~jmcneill/syscallemu.tar

pass ${COPTS} to the build of thunk.c so that it builds on amd64.

Replace the SDL based genfb driver with a wsdisplay and wskbd driver that
implements the VNC (RFB) protocol.

To enable the VNC server, add 'vnc=640x480,5900' to the kernel command line
(where 640x480 is the desired fb resolution and 5900 is the TCP port).

Screenshot of it here: http://www.netbsd.org/~jmcneill/usermode.tiff

get rid of urkelvisor, and use same MD majors as the host

branches: 1.24.2; 1.24.6;
push TEXTADDR option into kernel makefile

Reduce the amount of memory needed to run by default

Adjust default parameters

Implement in-place execution for binaries! No more MKPIE/MKPIC for userland
anymore!

pass debug compiler parameters to modules built with host sdk

unbreak build on netbsd

Let NetBSD/usermode build & link on a Linux host:
- Need to add options CPU_HOST=i386 or CPU_HOST=amd64 for membar & atomic_ops
- Don't use MAP_* and PROT_* with thunk API since the kernel and host
might not be the same; add THUNK_MAP_* and THUNK_PROT_* and translate them
- Add thunk_posix_memalign
- allocate mem_uvm with thunk_posix_memalign instead of thunk_malloc
- Fix thunk_mmap callers to always pass either THUNK_MAP_PRIVATE or
THUNK_MAP_SHARED
- mkstemp on Linux requires exactly 6 "X" characters at the end of the
template string, so add an X

Get this compiling (but not quite linking yet) on Linux

Add usermode kernel supervisor, can be disabled with 'no options URKELVISOR'

override thunk.d and thunk_sdl.d targets

- build thunk code with warnings
- add option SDL which pulls in thunk_sdl code and links the kernel to libSDL
- add an experimental framebuffer driver based on thunk_sdl, enable with:
options SDL
genfb* at mainbus?
wsdisplay* at genfb?
options WS_KERNEL_FG=WSCOL_GREEN
options WSEMUL_VT100
- reserve a major # for wsdisplay
- add thunk_getenv()

build fixes for netbsd-5 and i386

Don't override -O options... we might want to build with another -O setting in
the config file.

Link the usermode kernel staticly to avoid libc littering the virtual space.

try to use aio_read/aio_write instead of pread/pwrite

Make GENERIC32 build on amd64

Clean up extern mess by adding an API for kernel components to call libc
functions. thunk.c is built with special cflags that makes it compile
against standard system headers instead of kernel ones.

Instead of trying to override vers.o target, set NVFLAGS=-n

get this linking and running (sorta) again:

soundwave$ ./netbsd
NetBSD/usermode startup
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2008, 2009, 2010, 2011
The NetBSD Foundation, Inc. All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.

NetBSD 5.99.55 (GENERIC) #10: Thu Aug 11 14:24:03 EDT 2011
jmcneill@soundwave:/home/jmcneill/branches/HEAD/src/sys/arch/usermode/compile/GENERIC
total memory = 128 MB
avail memory = 124 MB
mainbus0 (root)
cpu0 at mainbus0
clock0 at mainbus0
ttycons0 at mainbus0: console
panic: setcontext failed: 14
rebooting...
Abort (core dumped)

fix build

Switch remaining platforms to modern CPP for assembler.

branches: 1.3.2; 1.3.4; 1.3.6; 1.3.8; 1.3.40; 1.3.46; 1.3.48;
-Dfree=kernfree, to match -Dmalloc=kernmalloc

Define init_main's main away to kernmain, and provide our own MD main entry
point. We do this since we don't have a proper bootloader, so we can
instead parse boot arguments here.

$ ./netbsd -h
-h: unknown flag
usage: ./netbsd [-acdqsvx]
(ex. "./netbsd -s")

Import work-in-progress NetBSD/usermode port.

Make NetBSD/usermode link again!

- Allow multiple .BEGIN targets
- Make their protection consistent

Tweak previous.

Echo exact objects (swap*.o etc.) when linking kernel.

Define ${LINKSCRIPT} in one place.

${KERN_LDSCRIPT} -> ${KERNLDSCRIPT}

branches: 1.35.2;
Use LINKSCRIPT.

use MACHINE_CPU instead of uname -p; create symlink for arm headers

branches: 1.33.6;
fix include dir
add some dependencies

branches: 1.32.2;
Move i386 and amd64 usermode configurations to their respective directories
and make the usermode kernels buildalbe under build.sh.

The resulting kernels are build and packaged correctly as are the associated
modules.

Move target/${USERMODE_CPU} to target/${MACHINE_CPU} to more clearly
distinguish between CPU specific ones and machine specific ones.

Add AMD64 target for NetBSD/usermode next to i386 and reorganize source tree
to have port specific stuff in arch/usermode/target/<port>/

Split machdep.c into a MI part and a MD part.

Get rid of MAP_NOSYSCALLS usage; now this relies on a separate kmod that
you can get here: http://www.netbsd.org/~jmcneill/syscallemu.tar

pass ${COPTS} to the build of thunk.c so that it builds on amd64.

Replace the SDL based genfb driver with a wsdisplay and wskbd driver that
implements the VNC (RFB) protocol.

To enable the VNC server, add 'vnc=640x480,5900' to the kernel command line
(where 640x480 is the desired fb resolution and 5900 is the TCP port).

Screenshot of it here: http://www.netbsd.org/~jmcneill/usermode.tiff

get rid of urkelvisor, and use same MD majors as the host

branches: 1.24.2; 1.24.6;
push TEXTADDR option into kernel makefile

Reduce the amount of memory needed to run by default

Adjust default parameters

Implement in-place execution for binaries! No more MKPIE/MKPIC for userland
anymore!

pass debug compiler parameters to modules built with host sdk

unbreak build on netbsd

Let NetBSD/usermode build & link on a Linux host:
- Need to add options CPU_HOST=i386 or CPU_HOST=amd64 for membar & atomic_ops
- Don't use MAP_* and PROT_* with thunk API since the kernel and host
might not be the same; add THUNK_MAP_* and THUNK_PROT_* and translate them
- Add thunk_posix_memalign
- allocate mem_uvm with thunk_posix_memalign instead of thunk_malloc
- Fix thunk_mmap callers to always pass either THUNK_MAP_PRIVATE or
THUNK_MAP_SHARED
- mkstemp on Linux requires exactly 6 "X" characters at the end of the
template string, so add an X

Get this compiling (but not quite linking yet) on Linux

Add usermode kernel supervisor, can be disabled with 'no options URKELVISOR'

override thunk.d and thunk_sdl.d targets

- build thunk code with warnings
- add option SDL which pulls in thunk_sdl code and links the kernel to libSDL
- add an experimental framebuffer driver based on thunk_sdl, enable with:
options SDL
genfb* at mainbus?
wsdisplay* at genfb?
options WS_KERNEL_FG=WSCOL_GREEN
options WSEMUL_VT100
- reserve a major # for wsdisplay
- add thunk_getenv()

build fixes for netbsd-5 and i386

Don't override -O options... we might want to build with another -O setting in
the config file.

Link the usermode kernel staticly to avoid libc littering the virtual space.

try to use aio_read/aio_write instead of pread/pwrite

Make GENERIC32 build on amd64

Clean up extern mess by adding an API for kernel components to call libc
functions. thunk.c is built with special cflags that makes it compile
against standard system headers instead of kernel ones.

Instead of trying to override vers.o target, set NVFLAGS=-n

get this linking and running (sorta) again:

soundwave$ ./netbsd
NetBSD/usermode startup
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005,
2006, 2007, 2008, 2009, 2010, 2011
The NetBSD Foundation, Inc. All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
The Regents of the University of California. All rights reserved.

NetBSD 5.99.55 (GENERIC) #10: Thu Aug 11 14:24:03 EDT 2011
jmcneill@soundwave:/home/jmcneill/branches/HEAD/src/sys/arch/usermode/compile/GENERIC
total memory = 128 MB
avail memory = 124 MB
mainbus0 (root)
cpu0 at mainbus0
clock0 at mainbus0
ttycons0 at mainbus0: console
panic: setcontext failed: 14
rebooting...
Abort (core dumped)

fix build

Switch remaining platforms to modern CPP for assembler.

branches: 1.3.2; 1.3.4; 1.3.6; 1.3.8; 1.3.40; 1.3.46; 1.3.48;
-Dfree=kernfree, to match -Dmalloc=kernmalloc

Define init_main's main away to kernmain, and provide our own MD main entry
point. We do this since we don't have a proper bootloader, so we can
instead parse boot arguments here.

$ ./netbsd -h
-h: unknown flag
usage: ./netbsd [-acdqsvx]
(ex. "./netbsd -s")

Import work-in-progress NetBSD/usermode port.