Add ld.script for macppc kernel, ofwboot

These are copies of powerpc64/conf/ld.script with some changes for
macppc. They work with both ld.bfd and ld.lld.

The ld.script fixes ld.lld. Without ld.script, lld would set the
symbol "etext" to a wrong value like 0x10000034, then ofwboot would
freeze and fail to boot the kernel. With ld.script, we PROVIDE a
correct etext.

ok kettenis@

Teach macppc ofwboot(8) about ffs2. Test and ok gkoehler@

Implement a hexdump command in the boot loader. This helps to
inspect the memory layout that the firmware has created. It is
especially useful for UEFI debugging.
OK deraadt@ kettenis@

Use arc4 to bit-spread the 512-byte random buffer over the .openbsd.randomdata
section, which has grown a fair bit with the introduction of retguard.
Mortimer discovered the repeated 512-byte sequence as retguard keys, and
this resolves the issue. (Chacha does not fit on the media, so 1.5K early
drop RC4 is hopefully sufficient in our KARL link universe)
Version crank the bootblocks. sysupgrade -s will install new bootblocks.
ok djm mortimer

In the bootblocks, after discovering and opening /bsd.upgrade, fchmod -x
so the file cannot be re-executed upon the next boot. This provides a
stronger one-shot-upgrade model than the upgrade script's rm /bsd.upgrade.
Now various forms of upgrade failure will reboot into /bsd, which is probably
more recoverable. Performing fchmod -x depends on (1) use of MI boot.c
(not alpha/macppc/sparc64/sgi/octeon) and (2) "can write blocks" functionality
in the IO layer. Most architectures have this support now.

Two diagnostics "fchmod a-x %s: failed" and "/bsd.upgrade is not u+x" will
remain in the tree while refinements happen for some of the laggard
architectures.

based upon a discussion florian
tested in snapshots for more than a week without any complaints

libsa's memcpy() is actually memmove(). make a proper memmove(), and give
memcpy() correct behaviour. This also brings the bcopy() macro into line.

Prep for relro: make sure it's off for any non-PIE stand/ program

ok millert@ kettenis@

Build actual boot code with -D_STANDALONE so that we do not include userland
headers by mistake.

Add netudp.c here too for consistency, even though this code ends up not being
referenced by the bootblocks.

more hanging tabs

No libsa putchar wanted here actually

move putchar() into libsa

"sure" miod@

move getchar() into libsa where applicable

ok miod@

Allow bootblocks to build in PIE; joint effort with pascal
boot.mac might still have a problem since it did change size...
looking for a testing report.

Add NOPIE= bits for sys/arch/*/stand to ensure that bootblocks will always be
built with -fno-pie. This gets the hairiest part of PIE out of the way ...

ok deraadt@

Unbreak macppc bootloader due to libz changes.

libkern, begone. Move to a new mechanism where config(8)'s "file"
directive can select between MI and MD versions of these files. At
the same time, adjust the boot programs to pick exactly what they need,
instead of the 7 or 8 mechanisms previously used.

There will be some fallout from this, but testing it all by myself is a
ridiculously slow process; it will be finished in-tree.

Various developers were very nice and avoided making fun of me when I
was gibbering in the corner..

Switch macppc to the interactive bootloader in stand/boot.
Much more useable on serial console systems.

Import fixcoff from NetBSD and make some changes to boot.mac Makefile and
ofwboot including loosing some meanigless defines and repurposing
XCOFF_GLUE to my own ends. These changes make it possible to boot the
OpenBSD kernel on at least the Power Macintosh 9500 and 9600. No binary
change in stripped ofwboot.
ok drahn@, martin@

Change how the bootloader links to get around size/start address issues
introduced by W^X. exe size goes back to 60640 from 126456.

branches: 1.1.4; 1.1.6;
The "powerpc" port which has supported the newer Apple Macintosh powerpc based
is being renamed to macppc. This is to allow sharing of common code
between different powerpc base platforms.

Most of the work involved in the renaming process was performed by miod@

Files moved from powerpc/stand/ofwboot to macppc/stand/ofwboot

Teach macppc ofwboot(8) about ffs2. Test and ok gkoehler@

Implement a hexdump command in the boot loader. This helps to
inspect the memory layout that the firmware has created. It is
especially useful for UEFI debugging.
OK deraadt@ kettenis@

Use arc4 to bit-spread the 512-byte random buffer over the .openbsd.randomdata
section, which has grown a fair bit with the introduction of retguard.
Mortimer discovered the repeated 512-byte sequence as retguard keys, and
this resolves the issue. (Chacha does not fit on the media, so 1.5K early
drop RC4 is hopefully sufficient in our KARL link universe)
Version crank the bootblocks. sysupgrade -s will install new bootblocks.
ok djm mortimer

In the bootblocks, after discovering and opening /bsd.upgrade, fchmod -x
so the file cannot be re-executed upon the next boot. This provides a
stronger one-shot-upgrade model than the upgrade script's rm /bsd.upgrade.
Now various forms of upgrade failure will reboot into /bsd, which is probably
more recoverable. Performing fchmod -x depends on (1) use of MI boot.c
(not alpha/macppc/sparc64/sgi/octeon) and (2) "can write blocks" functionality
in the IO layer. Most architectures have this support now.

Two diagnostics "fchmod a-x %s: failed" and "/bsd.upgrade is not u+x" will
remain in the tree while refinements happen for some of the laggard
architectures.

based upon a discussion florian
tested in snapshots for more than a week without any complaints

libsa's memcpy() is actually memmove(). make a proper memmove(), and give
memcpy() correct behaviour. This also brings the bcopy() macro into line.

Prep for relro: make sure it's off for any non-PIE stand/ program

ok millert@ kettenis@

Build actual boot code with -D_STANDALONE so that we do not include userland
headers by mistake.

Add netudp.c here too for consistency, even though this code ends up not being
referenced by the bootblocks.

more hanging tabs

No libsa putchar wanted here actually

move putchar() into libsa

"sure" miod@

move getchar() into libsa where applicable

ok miod@

Allow bootblocks to build in PIE; joint effort with pascal
boot.mac might still have a problem since it did change size...
looking for a testing report.

Add NOPIE= bits for sys/arch/*/stand to ensure that bootblocks will always be
built with -fno-pie. This gets the hairiest part of PIE out of the way ...

ok deraadt@

Unbreak macppc bootloader due to libz changes.

libkern, begone. Move to a new mechanism where config(8)'s "file"
directive can select between MI and MD versions of these files. At
the same time, adjust the boot programs to pick exactly what they need,
instead of the 7 or 8 mechanisms previously used.

There will be some fallout from this, but testing it all by myself is a
ridiculously slow process; it will be finished in-tree.

Various developers were very nice and avoided making fun of me when I
was gibbering in the corner..

Switch macppc to the interactive bootloader in stand/boot.
Much more useable on serial console systems.

Import fixcoff from NetBSD and make some changes to boot.mac Makefile and
ofwboot including loosing some meanigless defines and repurposing
XCOFF_GLUE to my own ends. These changes make it possible to boot the
OpenBSD kernel on at least the Power Macintosh 9500 and 9600. No binary
change in stripped ofwboot.
ok drahn@, martin@

Change how the bootloader links to get around size/start address issues
introduced by W^X. exe size goes back to 60640 from 126456.

branches: 1.1.4; 1.1.6;
The "powerpc" port which has supported the newer Apple Macintosh powerpc based
is being renamed to macppc. This is to allow sharing of common code
between different powerpc base platforms.

Most of the work involved in the renaming process was performed by miod@

Files moved from powerpc/stand/ofwboot to macppc/stand/ofwboot

Implement a hexdump command in the boot loader. This helps to
inspect the memory layout that the firmware has created. It is
especially useful for UEFI debugging.
OK deraadt@ kettenis@

Use arc4 to bit-spread the 512-byte random buffer over the .openbsd.randomdata
section, which has grown a fair bit with the introduction of retguard.
Mortimer discovered the repeated 512-byte sequence as retguard keys, and
this resolves the issue. (Chacha does not fit on the media, so 1.5K early
drop RC4 is hopefully sufficient in our KARL link universe)
Version crank the bootblocks. sysupgrade -s will install new bootblocks.
ok djm mortimer

In the bootblocks, after discovering and opening /bsd.upgrade, fchmod -x
so the file cannot be re-executed upon the next boot. This provides a
stronger one-shot-upgrade model than the upgrade script's rm /bsd.upgrade.
Now various forms of upgrade failure will reboot into /bsd, which is probably
more recoverable. Performing fchmod -x depends on (1) use of MI boot.c
(not alpha/macppc/sparc64/sgi/octeon) and (2) "can write blocks" functionality
in the IO layer. Most architectures have this support now.

Two diagnostics "fchmod a-x %s: failed" and "/bsd.upgrade is not u+x" will
remain in the tree while refinements happen for some of the laggard
architectures.

based upon a discussion florian
tested in snapshots for more than a week without any complaints

libsa's memcpy() is actually memmove(). make a proper memmove(), and give
memcpy() correct behaviour. This also brings the bcopy() macro into line.

Prep for relro: make sure it's off for any non-PIE stand/ program

ok millert@ kettenis@

Build actual boot code with -D_STANDALONE so that we do not include userland
headers by mistake.

Add netudp.c here too for consistency, even though this code ends up not being
referenced by the bootblocks.

more hanging tabs

No libsa putchar wanted here actually

move putchar() into libsa

"sure" miod@

move getchar() into libsa where applicable

ok miod@

Allow bootblocks to build in PIE; joint effort with pascal
boot.mac might still have a problem since it did change size...
looking for a testing report.

Add NOPIE= bits for sys/arch/*/stand to ensure that bootblocks will always be
built with -fno-pie. This gets the hairiest part of PIE out of the way ...

ok deraadt@

Unbreak macppc bootloader due to libz changes.

libkern, begone. Move to a new mechanism where config(8)'s "file"
directive can select between MI and MD versions of these files. At
the same time, adjust the boot programs to pick exactly what they need,
instead of the 7 or 8 mechanisms previously used.

There will be some fallout from this, but testing it all by myself is a
ridiculously slow process; it will be finished in-tree.

Various developers were very nice and avoided making fun of me when I
was gibbering in the corner..

Switch macppc to the interactive bootloader in stand/boot.
Much more useable on serial console systems.

Import fixcoff from NetBSD and make some changes to boot.mac Makefile and
ofwboot including loosing some meanigless defines and repurposing
XCOFF_GLUE to my own ends. These changes make it possible to boot the
OpenBSD kernel on at least the Power Macintosh 9500 and 9600. No binary
change in stripped ofwboot.
ok drahn@, martin@

Change how the bootloader links to get around size/start address issues
introduced by W^X. exe size goes back to 60640 from 126456.

branches: 1.1.4; 1.1.6;
The "powerpc" port which has supported the newer Apple Macintosh powerpc based
is being renamed to macppc. This is to allow sharing of common code
between different powerpc base platforms.

Most of the work involved in the renaming process was performed by miod@

Files moved from powerpc/stand/ofwboot to macppc/stand/ofwboot

Use arc4 to bit-spread the 512-byte random buffer over the .openbsd.randomdata
section, which has grown a fair bit with the introduction of retguard.
Mortimer discovered the repeated 512-byte sequence as retguard keys, and
this resolves the issue. (Chacha does not fit on the media, so 1.5K early
drop RC4 is hopefully sufficient in our KARL link universe)
Version crank the bootblocks. sysupgrade -s will install new bootblocks.
ok djm mortimer

In the bootblocks, after discovering and opening /bsd.upgrade, fchmod -x
so the file cannot be re-executed upon the next boot. This provides a
stronger one-shot-upgrade model than the upgrade script's rm /bsd.upgrade.
Now various forms of upgrade failure will reboot into /bsd, which is probably
more recoverable. Performing fchmod -x depends on (1) use of MI boot.c
(not alpha/macppc/sparc64/sgi/octeon) and (2) "can write blocks" functionality
in the IO layer. Most architectures have this support now.

Two diagnostics "fchmod a-x %s: failed" and "/bsd.upgrade is not u+x" will
remain in the tree while refinements happen for some of the laggard
architectures.

based upon a discussion florian
tested in snapshots for more than a week without any complaints

libsa's memcpy() is actually memmove(). make a proper memmove(), and give
memcpy() correct behaviour. This also brings the bcopy() macro into line.

Prep for relro: make sure it's off for any non-PIE stand/ program

ok millert@ kettenis@

Build actual boot code with -D_STANDALONE so that we do not include userland
headers by mistake.

Add netudp.c here too for consistency, even though this code ends up not being
referenced by the bootblocks.

more hanging tabs

No libsa putchar wanted here actually

move putchar() into libsa

"sure" miod@

move getchar() into libsa where applicable

ok miod@

Allow bootblocks to build in PIE; joint effort with pascal
boot.mac might still have a problem since it did change size...
looking for a testing report.

Add NOPIE= bits for sys/arch/*/stand to ensure that bootblocks will always be
built with -fno-pie. This gets the hairiest part of PIE out of the way ...

ok deraadt@

Unbreak macppc bootloader due to libz changes.

libkern, begone. Move to a new mechanism where config(8)'s "file"
directive can select between MI and MD versions of these files. At
the same time, adjust the boot programs to pick exactly what they need,
instead of the 7 or 8 mechanisms previously used.

There will be some fallout from this, but testing it all by myself is a
ridiculously slow process; it will be finished in-tree.

Various developers were very nice and avoided making fun of me when I
was gibbering in the corner..

Switch macppc to the interactive bootloader in stand/boot.
Much more useable on serial console systems.

Import fixcoff from NetBSD and make some changes to boot.mac Makefile and
ofwboot including loosing some meanigless defines and repurposing
XCOFF_GLUE to my own ends. These changes make it possible to boot the
OpenBSD kernel on at least the Power Macintosh 9500 and 9600. No binary
change in stripped ofwboot.
ok drahn@, martin@

Change how the bootloader links to get around size/start address issues
introduced by W^X. exe size goes back to 60640 from 126456.

branches: 1.1.4; 1.1.6;
The "powerpc" port which has supported the newer Apple Macintosh powerpc based
is being renamed to macppc. This is to allow sharing of common code
between different powerpc base platforms.

Most of the work involved in the renaming process was performed by miod@

Files moved from powerpc/stand/ofwboot to macppc/stand/ofwboot

In the bootblocks, after discovering and opening /bsd.upgrade, fchmod -x
so the file cannot be re-executed upon the next boot. This provides a
stronger one-shot-upgrade model than the upgrade script's rm /bsd.upgrade.
Now various forms of upgrade failure will reboot into /bsd, which is probably
more recoverable. Performing fchmod -x depends on (1) use of MI boot.c
(not alpha/macppc/sparc64/sgi/octeon) and (2) "can write blocks" functionality
in the IO layer. Most architectures have this support now.

Two diagnostics "fchmod a-x %s: failed" and "/bsd.upgrade is not u+x" will
remain in the tree while refinements happen for some of the laggard
architectures.

based upon a discussion florian
tested in snapshots for more than a week without any complaints

libsa's memcpy() is actually memmove(). make a proper memmove(), and give
memcpy() correct behaviour. This also brings the bcopy() macro into line.

Prep for relro: make sure it's off for any non-PIE stand/ program

ok millert@ kettenis@

Build actual boot code with -D_STANDALONE so that we do not include userland
headers by mistake.

Add netudp.c here too for consistency, even though this code ends up not being
referenced by the bootblocks.

more hanging tabs

No libsa putchar wanted here actually

move putchar() into libsa

"sure" miod@

move getchar() into libsa where applicable

ok miod@

Allow bootblocks to build in PIE; joint effort with pascal
boot.mac might still have a problem since it did change size...
looking for a testing report.

Add NOPIE= bits for sys/arch/*/stand to ensure that bootblocks will always be
built with -fno-pie. This gets the hairiest part of PIE out of the way ...

ok deraadt@

Unbreak macppc bootloader due to libz changes.

libkern, begone. Move to a new mechanism where config(8)'s "file"
directive can select between MI and MD versions of these files. At
the same time, adjust the boot programs to pick exactly what they need,
instead of the 7 or 8 mechanisms previously used.

There will be some fallout from this, but testing it all by myself is a
ridiculously slow process; it will be finished in-tree.

Various developers were very nice and avoided making fun of me when I
was gibbering in the corner..

Switch macppc to the interactive bootloader in stand/boot.
Much more useable on serial console systems.

Import fixcoff from NetBSD and make some changes to boot.mac Makefile and
ofwboot including loosing some meanigless defines and repurposing
XCOFF_GLUE to my own ends. These changes make it possible to boot the
OpenBSD kernel on at least the Power Macintosh 9500 and 9600. No binary
change in stripped ofwboot.
ok drahn@, martin@

Change how the bootloader links to get around size/start address issues
introduced by W^X. exe size goes back to 60640 from 126456.

branches: 1.1.4; 1.1.6;
The "powerpc" port which has supported the newer Apple Macintosh powerpc based
is being renamed to macppc. This is to allow sharing of common code
between different powerpc base platforms.

Most of the work involved in the renaming process was performed by miod@

Files moved from powerpc/stand/ofwboot to macppc/stand/ofwboot

libsa's memcpy() is actually memmove(). make a proper memmove(), and give
memcpy() correct behaviour. This also brings the bcopy() macro into line.

Prep for relro: make sure it's off for any non-PIE stand/ program

ok millert@ kettenis@

Build actual boot code with -D_STANDALONE so that we do not include userland
headers by mistake.

Add netudp.c here too for consistency, even though this code ends up not being
referenced by the bootblocks.

more hanging tabs

No libsa putchar wanted here actually

move putchar() into libsa

"sure" miod@

move getchar() into libsa where applicable

ok miod@

Allow bootblocks to build in PIE; joint effort with pascal
boot.mac might still have a problem since it did change size...
looking for a testing report.

Add NOPIE= bits for sys/arch/*/stand to ensure that bootblocks will always be
built with -fno-pie. This gets the hairiest part of PIE out of the way ...

ok deraadt@

Unbreak macppc bootloader due to libz changes.

libkern, begone. Move to a new mechanism where config(8)'s "file"
directive can select between MI and MD versions of these files. At
the same time, adjust the boot programs to pick exactly what they need,
instead of the 7 or 8 mechanisms previously used.

There will be some fallout from this, but testing it all by myself is a
ridiculously slow process; it will be finished in-tree.

Various developers were very nice and avoided making fun of me when I
was gibbering in the corner..

Switch macppc to the interactive bootloader in stand/boot.
Much more useable on serial console systems.

Import fixcoff from NetBSD and make some changes to boot.mac Makefile and
ofwboot including loosing some meanigless defines and repurposing
XCOFF_GLUE to my own ends. These changes make it possible to boot the
OpenBSD kernel on at least the Power Macintosh 9500 and 9600. No binary
change in stripped ofwboot.
ok drahn@, martin@

Change how the bootloader links to get around size/start address issues
introduced by W^X. exe size goes back to 60640 from 126456.

branches: 1.1.4; 1.1.6;
The "powerpc" port which has supported the newer Apple Macintosh powerpc based
is being renamed to macppc. This is to allow sharing of common code
between different powerpc base platforms.

Most of the work involved in the renaming process was performed by miod@

Files moved from powerpc/stand/ofwboot to macppc/stand/ofwboot