Currently `boards/qemu-i386/dist/term.py` expects QEMU to connect in
less than 5 seconds, which is plenty on any user machine. Travis CI,
which we use without paying a cent, sometimes fails to start QEMU in
this is timeframe, though.
This PR increases the timeout to one minute.
When qemu-i386 shuts down the instance on its own accord, like in the
hello-world example, then the terminal is broken afterwards.
This PR ensures that the terminal flags are restored on shutdown.
This includes GNU readline features and debugging.
Build with `make BOARD=qemu-i386 all-debug`.
Run with `make BOARD=qemu-i386 term`.
Debug with `make BOARD=qemu-i386 debug`. The default debugger is `gdb`.
Also supported are `debug-tui` (GDB Text User Interface), `debug-kdbg`,
and `debug-ddd`. Set a breakpoint in e.g. "startup" or "main", and
hit/write "continue".
The debugger can only run with a quite new toolchain (e.g. Debian
testing). Ubuntu 13.10. for example will likely report a crash in GDB
when switching from 16bit code to 32bit code.
Many modules have subdirectories. Often these subdirectories should only
be included under certain circumstances. Modules that use submodules
currently need to use this pattern:
```make
DIRS = …
all: $(BINDIR)$(MODULE).a
@for i in $(DIRS) ; do $(MAKE) -C $$i ; done ;
include $(RIOTBASE)/Makefile.base
clean::
@for i in $(DIRS) ; do $(MAKE) -C $$i clean ; done ;
```
This PR moves the `all:` and `clean::` boilerplate into `Makefile.base`.
