Combine x86 register tests into unified test function

Reduce the code duplication and improve maintainability of x86 register
tests by combining all of them to a single base function.

Add more debug to register writing tests

Add tests for PT_SETREGS

fix unused variable warnings.

Reintroduce i386 tests for general-purpose registers, without MMX req

Reintroduce the test for reading i386 general-purpose register values
from the debugged program. This time it's split into one test for the six
registers not normally used by the compiler (eax..edx, esi, edi), and another
for ebp, esp. This leaves enough free registers for the latter to work
without MMX.

Revert i386_regs_gp_read as it fails on non-MMX systems.

Add tests for reading pre-set general purpose register values via PT_GETREGS.

Add new tests verifying that PT_GETREGS provides correct register values
from the underlying program. The test uses inline assembly in the child program
to set registers to well-known constants, then compares the results obtained
via PT_GETREGS against them.

Reviewed by kamil.

Link t_ptrace_wait* tests with -pthread

While there, bump (c) for ATF ptrace(2) tests.

Add __used in infinite_thread() for consistency with other functions in
the file.

branches: 1.2.4;
sync a bit more with reality; some things still fail, some new failures.
reduce spewage, be more explanatory about syscall errors.

branches: 1.1.2; 1.1.4; 1.1.8;
Import ptrace(2) tests into appropriate directory tests/lib/libc/sys/

This is the correct directory documented in tests/README for such tests.

Discussed with <martin>

Sponsored by <The NetBSD Foundation>

Add more debug to register writing tests

Add tests for PT_SETREGS

fix unused variable warnings.

Reintroduce i386 tests for general-purpose registers, without MMX req

Reintroduce the test for reading i386 general-purpose register values
from the debugged program. This time it's split into one test for the six
registers not normally used by the compiler (eax..edx, esi, edi), and another
for ebp, esp. This leaves enough free registers for the latter to work
without MMX.

Revert i386_regs_gp_read as it fails on non-MMX systems.

Add tests for reading pre-set general purpose register values via PT_GETREGS.

Add new tests verifying that PT_GETREGS provides correct register values
from the underlying program. The test uses inline assembly in the child program
to set registers to well-known constants, then compares the results obtained
via PT_GETREGS against them.

Reviewed by kamil.

Link t_ptrace_wait* tests with -pthread

While there, bump (c) for ATF ptrace(2) tests.

Add __used in infinite_thread() for consistency with other functions in
the file.

sync a bit more with reality; some things still fail, some new failures.
reduce spewage, be more explanatory about syscall errors.

branches: 1.1.2; 1.1.4; 1.1.8;
Import ptrace(2) tests into appropriate directory tests/lib/libc/sys/

This is the correct directory documented in tests/README for such tests.

Discussed with <martin>

Sponsored by <The NetBSD Foundation>

Add tests for PT_SETREGS

fix unused variable warnings.

Reintroduce i386 tests for general-purpose registers, without MMX req

Reintroduce the test for reading i386 general-purpose register values
from the debugged program. This time it's split into one test for the six
registers not normally used by the compiler (eax..edx, esi, edi), and another
for ebp, esp. This leaves enough free registers for the latter to work
without MMX.

Revert i386_regs_gp_read as it fails on non-MMX systems.

Add tests for reading pre-set general purpose register values via PT_GETREGS.

Add new tests verifying that PT_GETREGS provides correct register values
from the underlying program. The test uses inline assembly in the child program
to set registers to well-known constants, then compares the results obtained
via PT_GETREGS against them.

Reviewed by kamil.

Link t_ptrace_wait* tests with -pthread

While there, bump (c) for ATF ptrace(2) tests.

Add __used in infinite_thread() for consistency with other functions in
the file.

sync a bit more with reality; some things still fail, some new failures.
reduce spewage, be more explanatory about syscall errors.

branches: 1.1.2; 1.1.4; 1.1.8;
Import ptrace(2) tests into appropriate directory tests/lib/libc/sys/

This is the correct directory documented in tests/README for such tests.

Discussed with <martin>

Sponsored by <The NetBSD Foundation>

fix unused variable warnings.

Reintroduce i386 tests for general-purpose registers, without MMX req

Reintroduce the test for reading i386 general-purpose register values
from the debugged program. This time it's split into one test for the six
registers not normally used by the compiler (eax..edx, esi, edi), and another
for ebp, esp. This leaves enough free registers for the latter to work
without MMX.

Revert i386_regs_gp_read as it fails on non-MMX systems.

Add tests for reading pre-set general purpose register values via PT_GETREGS.

Add new tests verifying that PT_GETREGS provides correct register values
from the underlying program. The test uses inline assembly in the child program
to set registers to well-known constants, then compares the results obtained
via PT_GETREGS against them.

Reviewed by kamil.

Link t_ptrace_wait* tests with -pthread

While there, bump (c) for ATF ptrace(2) tests.

Add __used in infinite_thread() for consistency with other functions in
the file.

sync a bit more with reality; some things still fail, some new failures.
reduce spewage, be more explanatory about syscall errors.

branches: 1.1.2; 1.1.4; 1.1.8;
Import ptrace(2) tests into appropriate directory tests/lib/libc/sys/

This is the correct directory documented in tests/README for such tests.

Discussed with <martin>

Sponsored by <The NetBSD Foundation>

Add tests for reading pre-set general purpose register values via PT_GETREGS.

Add new tests verifying that PT_GETREGS provides correct register values
from the underlying program. The test uses inline assembly in the child program
to set registers to well-known constants, then compares the results obtained
via PT_GETREGS against them.

Reviewed by kamil.

Link t_ptrace_wait* tests with -pthread

While there, bump (c) for ATF ptrace(2) tests.

Add __used in infinite_thread() for consistency with other functions in
the file.

sync a bit more with reality; some things still fail, some new failures.
reduce spewage, be more explanatory about syscall errors.

branches: 1.1.2; 1.1.4; 1.1.8;
Import ptrace(2) tests into appropriate directory tests/lib/libc/sys/

This is the correct directory documented in tests/README for such tests.

Discussed with <martin>

Sponsored by <The NetBSD Foundation>

Link t_ptrace_wait* tests with -pthread

While there, bump (c) for ATF ptrace(2) tests.

Add __used in infinite_thread() for consistency with other functions in
the file.

sync a bit more with reality; some things still fail, some new failures.
reduce spewage, be more explanatory about syscall errors.

branches: 1.1.2; 1.1.4; 1.1.8;
Import ptrace(2) tests into appropriate directory tests/lib/libc/sys/

This is the correct directory documented in tests/README for such tests.

Discussed with <martin>

Sponsored by <The NetBSD Foundation>

sync a bit more with reality; some things still fail, some new failures.
reduce spewage, be more explanatory about syscall errors.

branches: 1.1.2; 1.1.4;
Import ptrace(2) tests into appropriate directory tests/lib/libc/sys/

This is the correct directory documented in tests/README for such tests.

Discussed with <martin>

Sponsored by <The NetBSD Foundation>