The --enable-sim-hostendian flag was purely so people had an escape route
for when cross-compiling. This is because historically, AC_C_BIGENDIAN
did not work in those cases. That was fixed a while ago though, so we can
require that macro everywhere now and simplify a good bit of code.
Rather than re-invent endian defines, as well as maintain our own list
of OS & arch-specific includes, punt all that logic in favor of the bfd
ones already set up and maintained elsewhere. We already rely on the
bfd library, so leveraging the endian aspect should be fine.
No arch is using this anymore, and we want all new ports using the
hardware framework instead. Punt WITH_DEVICES and the two callbacks
device_io_{read,write}_buffer.
We can also punt the tconfig.h file as no port is using it anymore.
This fixes in-tree builds that get confused by picking up the wrong
one (common/ vs <port>/) caused by commit ae7d0cac8c.
Any port that needs to set up a global define can use their own
sim-main.h file that they must provide regardless.
Only four targets implement this function, and three of them do nothing.
The 4th merely calls abort. Since calls to this function are followed
by calls to sim_hw_abort or sim_io_error, this is largely useless. In
the two places where we don't, replace the call with sim_engine_abort.
We want to kill off the WITH_DEVICES logic in favor of WITH_HW, so this
is a good first step.
We enable WITH_CALLBACK_MEMORY everywhere and don't provide a way to
turn it off, and no target does so. Make it unconditional for all
to keep things simple.
Two modifications:
1. The addition of 2013 to the copyright year range for every file;
2. The use of a single year range, instead of potentially multiple
year ranges, as approved by the FSF.
* sim-base.h (sim_state_base): Add member trace_data.
(STATE_TRACE_DATA): New macro.
* sim-trace.h (TRACE_DEBUG_IDX,TRACE_debug): New macros.
({WITH_,}TRACE_DEBUG_P): New macros.
(STATE_TRACE_FLAGS,STRACE_P,STRACE_DEBUG_P): New macros.
(_sim_cpu): Delete forward reference.
(debug_printf): Update.
* sim-trace.c (OPTION_TRACE_DEBUG): Define.
(trace_options): Add --trace-debug.
(set_trace_options): Handle it.
(trace_option_handler): Likewise.
(trace_install): Init state trace_data struct.
(trace_uninstall): Close state trace file.
* sim-events.c (ETRACE): Only print source file and number if
--trace-debug.
* sim-n-core.h (sim_core_trace_M): Likewise.
* sim-core.c (sim_core_signal): Add missing "\n" in message.
