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Replace the pre-C++ construct of netbsd_target_ops, netbsd_regset_info
and netbsd_tdesc with C++ inheritance approach found in the Linux
gdbserver code. Add netbsd_amd64_target, that inherits from the
netbsd_process_target class and add proper singleton object for
the_netbsd_target, initialized from netbsd_amd64_target.
Call low_arch_setup () on post process creation, which sets machine
specific properties of the traced process.
Remove global singleton the_netbsd_target object from the generic
gdbserver code.
This refactoring introduces no functional change from the end-user
point of view.
gdbserver/ChangeLog:
* netbsd-amd64-low.cc (netbsd_x86_64_arch_setup): Remove.
(netbsd_target_regsets): Now const.
(the_low_target): Remove.
(class netbsd_amd64_target, the_netbsd_amd64_target)
(the_netbsd_target): Add.
* netbsd-low.cc (netbsd_process_target::post_create_inferior): Call
low_arch_setup ().
(netbsd_process_target::fetch_registers)
(netbsd_process_target::store_registers, initialize_low): Update.
(the_netbsd_target): Remove.
* netbsd-low.h (netbsd_target_regsets, netbsd_target_ops)
(the_low_target, netbsd_tdesc): Remove.
(netbsd_process_target::get_regs_info)
(netbsd_process_target::low_arch_setup): Add.
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Implement the following functionality: create_inferior,
post_create_inferior, attach, kill, detach, mourn, join, thread_alive,
resume, wait, fetch_registers, store_registers, read_memory, write_memory,
request_interrupt, supports_read_auxv, read_auxv,
supports_hardware_single_step, sw_breakpoint_from_kind,
supports_z_point_type, insert_point, remove_point,
stopped_by_sw_breakpoint, supports_qxfer_siginfo, qxfer_siginfo,
supports_stopped_by_sw_breakpoint, supports_non_stop,
supports_multi_process, supports_fork_events, supports_vfork_events,
supports_exec_events, supports_disable_randomization,
supports_qxfer_libraries_svr4, qxfer_libraries_svr4,
supports_pid_to_exec_file, pid_to_exec_file, thread_name,
supports_catch_syscall.
The only CPU architecture supported: x86_64.
Implement only support for hardware assisted single step and
software breakpoint.
Implement support only for regular X86 registers, thus no FPU.
gdbserver/ChangeLog:
* netbsd-low.cc: Add.
* netbsd-low.h: Likewise.
* netbsd-amd64-low.cc: Likewise.
* Makefile.in (SFILES): Register "netbsd-low.cc", "netbsd-low.h",
"netbsd-amd64-low.cc".
* configure.srv: Add x86_64-*-netbsd*.
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