remove uneeded includes in md armv7 files

based on include-what-you-use suggestions

Include <sys/systm.h> directly instead of relying on hidden UVM includes.

The header is being pulled via db_machdep.h -> uvm_extern.h -> uvm_map.h

Remove get_pc_str_offset(), which has been unused since we switched
to clang, where the stack frame format changed significantly.

Prompted by guenther@ noticing deprecated ASM warnings
ok drahn@

Convert db_addr_t -> vaddr_t but leave the typedef for now.

Substitute boolean_t/TRUE/FALSE by int/1/0.

Rework the DDB trace handling for armv7. By switching to clang the
stack frame format has changed. Apparently AAPCS doesn't specify
at all what a stack frame looks like. We end up with much simpler
code, but also with a lot less information in the trace.

ok kettenis@

Rename pfind(9) into tfind(9) to reflect that it deals with threads.

While here document prfind(9.

with and ok guenther@

one too many close parentheses

spotted by Markus Hennecke

ansify function definitions

ok guenther@ millert@

fix whitespace at EOL

Don't use DDB_REGS, ok patrick@

Late spring cleaning of the arm code for old dusty bits we do not want to
keep:
- remove bootconfig parameter passing feature (unused).
- unifdef __PROG32 and remove all remains of arm26 code.
- remove ARMFPE support (unused).
- remove support for ARM2, ARM2AS, ARM3, ARM6, ARM7, ARM7TDMI and StrongARM
processor families, and the related silicon bug workarounds (especially
the SA-110 STM^ bug).
- remove cpu_functions no longer necessary after previous removals.
- remove ARM32_DISABLE_ALIGNMENT_FAULTS option (unused).
- make FIQ support conditional on option FIQ (unused, but may be eventually).

Discussed with drahn@ and jasper@ long ago, I was sitting on this commit for
no good reason.

Rework the way saved registers are displayed in arm backtraces, to yield a
more compact layout, and use fewer lines. Requested by espie@ long ago due
to the small zaurus screen size.

Kernel stack can be swapped. This means that stuff that's on the stack
should never be referenced outside the context of the process to which
this stack belongs unless we do the PHOLD/PRELE dance. Loads of code
doesn't follow the rules here. Instead of trying to track down all
offenders and fix this hairy situation, it makes much more sense
to not swap kernel stacks.

From art@, tested by many some time ago.

de __P of sys/arch/arm.

branches: 1.1.2;
Arm port, NetBSD codebase stripped down, 32bit only support.

Include <sys/systm.h> directly instead of relying on hidden UVM includes.

The header is being pulled via db_machdep.h -> uvm_extern.h -> uvm_map.h

Remove get_pc_str_offset(), which has been unused since we switched
to clang, where the stack frame format changed significantly.

Prompted by guenther@ noticing deprecated ASM warnings
ok drahn@

Convert db_addr_t -> vaddr_t but leave the typedef for now.

Substitute boolean_t/TRUE/FALSE by int/1/0.

Rework the DDB trace handling for armv7. By switching to clang the
stack frame format has changed. Apparently AAPCS doesn't specify
at all what a stack frame looks like. We end up with much simpler
code, but also with a lot less information in the trace.

ok kettenis@

Rename pfind(9) into tfind(9) to reflect that it deals with threads.

While here document prfind(9.

with and ok guenther@

one too many close parentheses

spotted by Markus Hennecke

ansify function definitions

ok guenther@ millert@

fix whitespace at EOL

Don't use DDB_REGS, ok patrick@

Late spring cleaning of the arm code for old dusty bits we do not want to
keep:
- remove bootconfig parameter passing feature (unused).
- unifdef __PROG32 and remove all remains of arm26 code.
- remove ARMFPE support (unused).
- remove support for ARM2, ARM2AS, ARM3, ARM6, ARM7, ARM7TDMI and StrongARM
processor families, and the related silicon bug workarounds (especially
the SA-110 STM^ bug).
- remove cpu_functions no longer necessary after previous removals.
- remove ARM32_DISABLE_ALIGNMENT_FAULTS option (unused).
- make FIQ support conditional on option FIQ (unused, but may be eventually).

Discussed with drahn@ and jasper@ long ago, I was sitting on this commit for
no good reason.

Rework the way saved registers are displayed in arm backtraces, to yield a
more compact layout, and use fewer lines. Requested by espie@ long ago due
to the small zaurus screen size.

Kernel stack can be swapped. This means that stuff that's on the stack
should never be referenced outside the context of the process to which
this stack belongs unless we do the PHOLD/PRELE dance. Loads of code
doesn't follow the rules here. Instead of trying to track down all
offenders and fix this hairy situation, it makes much more sense
to not swap kernel stacks.

From art@, tested by many some time ago.

de __P of sys/arch/arm.

branches: 1.1.2;
Arm port, NetBSD codebase stripped down, 32bit only support.

Remove get_pc_str_offset(), which has been unused since we switched
to clang, where the stack frame format changed significantly.

Prompted by guenther@ noticing deprecated ASM warnings
ok drahn@

Convert db_addr_t -> vaddr_t but leave the typedef for now.

Substitute boolean_t/TRUE/FALSE by int/1/0.

Rework the DDB trace handling for armv7. By switching to clang the
stack frame format has changed. Apparently AAPCS doesn't specify
at all what a stack frame looks like. We end up with much simpler
code, but also with a lot less information in the trace.

ok kettenis@

Rename pfind(9) into tfind(9) to reflect that it deals with threads.

While here document prfind(9.

with and ok guenther@

one too many close parentheses

spotted by Markus Hennecke

ansify function definitions

ok guenther@ millert@

fix whitespace at EOL

Don't use DDB_REGS, ok patrick@

Late spring cleaning of the arm code for old dusty bits we do not want to
keep:
- remove bootconfig parameter passing feature (unused).
- unifdef __PROG32 and remove all remains of arm26 code.
- remove ARMFPE support (unused).
- remove support for ARM2, ARM2AS, ARM3, ARM6, ARM7, ARM7TDMI and StrongARM
processor families, and the related silicon bug workarounds (especially
the SA-110 STM^ bug).
- remove cpu_functions no longer necessary after previous removals.
- remove ARM32_DISABLE_ALIGNMENT_FAULTS option (unused).
- make FIQ support conditional on option FIQ (unused, but may be eventually).

Discussed with drahn@ and jasper@ long ago, I was sitting on this commit for
no good reason.

Rework the way saved registers are displayed in arm backtraces, to yield a
more compact layout, and use fewer lines. Requested by espie@ long ago due
to the small zaurus screen size.

Kernel stack can be swapped. This means that stuff that's on the stack
should never be referenced outside the context of the process to which
this stack belongs unless we do the PHOLD/PRELE dance. Loads of code
doesn't follow the rules here. Instead of trying to track down all
offenders and fix this hairy situation, it makes much more sense
to not swap kernel stacks.

From art@, tested by many some time ago.

de __P of sys/arch/arm.

branches: 1.1.2;
Arm port, NetBSD codebase stripped down, 32bit only support.

Rework the DDB trace handling for armv7. By switching to clang the
stack frame format has changed. Apparently AAPCS doesn't specify
at all what a stack frame looks like. We end up with much simpler
code, but also with a lot less information in the trace.

ok kettenis@

Rename pfind(9) into tfind(9) to reflect that it deals with threads.

While here document prfind(9.

with and ok guenther@

one too many close parentheses

spotted by Markus Hennecke

ansify function definitions

ok guenther@ millert@

fix whitespace at EOL

Don't use DDB_REGS, ok patrick@

Late spring cleaning of the arm code for old dusty bits we do not want to
keep:
- remove bootconfig parameter passing feature (unused).
- unifdef __PROG32 and remove all remains of arm26 code.
- remove ARMFPE support (unused).
- remove support for ARM2, ARM2AS, ARM3, ARM6, ARM7, ARM7TDMI and StrongARM
processor families, and the related silicon bug workarounds (especially
the SA-110 STM^ bug).
- remove cpu_functions no longer necessary after previous removals.
- remove ARM32_DISABLE_ALIGNMENT_FAULTS option (unused).
- make FIQ support conditional on option FIQ (unused, but may be eventually).

Discussed with drahn@ and jasper@ long ago, I was sitting on this commit for
no good reason.

Rework the way saved registers are displayed in arm backtraces, to yield a
more compact layout, and use fewer lines. Requested by espie@ long ago due
to the small zaurus screen size.

Kernel stack can be swapped. This means that stuff that's on the stack
should never be referenced outside the context of the process to which
this stack belongs unless we do the PHOLD/PRELE dance. Loads of code
doesn't follow the rules here. Instead of trying to track down all
offenders and fix this hairy situation, it makes much more sense
to not swap kernel stacks.

From art@, tested by many some time ago.

de __P of sys/arch/arm.

branches: 1.1.2;
Arm port, NetBSD codebase stripped down, 32bit only support.

Rename pfind(9) into tfind(9) to reflect that it deals with threads.

While here document prfind(9.

with and ok guenther@

one too many close parentheses

spotted by Markus Hennecke

ansify function definitions

ok guenther@ millert@

fix whitespace at EOL

Don't use DDB_REGS, ok patrick@

Late spring cleaning of the arm code for old dusty bits we do not want to
keep:
- remove bootconfig parameter passing feature (unused).
- unifdef __PROG32 and remove all remains of arm26 code.
- remove ARMFPE support (unused).
- remove support for ARM2, ARM2AS, ARM3, ARM6, ARM7, ARM7TDMI and StrongARM
processor families, and the related silicon bug workarounds (especially
the SA-110 STM^ bug).
- remove cpu_functions no longer necessary after previous removals.
- remove ARM32_DISABLE_ALIGNMENT_FAULTS option (unused).
- make FIQ support conditional on option FIQ (unused, but may be eventually).

Discussed with drahn@ and jasper@ long ago, I was sitting on this commit for
no good reason.

Rework the way saved registers are displayed in arm backtraces, to yield a
more compact layout, and use fewer lines. Requested by espie@ long ago due
to the small zaurus screen size.

Kernel stack can be swapped. This means that stuff that's on the stack
should never be referenced outside the context of the process to which
this stack belongs unless we do the PHOLD/PRELE dance. Loads of code
doesn't follow the rules here. Instead of trying to track down all
offenders and fix this hairy situation, it makes much more sense
to not swap kernel stacks.

From art@, tested by many some time ago.

de __P of sys/arch/arm.

branches: 1.1.2;
Arm port, NetBSD codebase stripped down, 32bit only support.