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d6d7cbb8e0
When booting under EFI, grub2 will output a nice and shiny boot menu,
using extended ASCII characters (in the [0x80..0xFF] range), namely
CP437 [0], on the assumption that the VGA BIOS is a real one and has the
corresponding (and only!) font, as is the case on real hardware.
However, when run in our runtime test infrastructure, this triggers the
infamous python UnicodeDecodeError exception:
Traceback (most recent call last):
[...]
emulator.login()
File "[...]/buildroot/support/testing/infra/emulator.py", line 89, in login
index = self.qemu.expect(["buildroot login:", pexpect.TIMEOUT],
File "/usr/lib/python3/dist-packages/pexpect/spawnbase.py", line 340, in expect
return self.expect_list(compiled_pattern_list,
File "/usr/lib/python3/dist-packages/pexpect/spawnbase.py", line 369, in expect_list
return exp.expect_loop(timeout)
File "/usr/lib/python3/dist-packages/pexpect/expect.py", line 111, in expect_loop
incoming = spawn.read_nonblocking(spawn.maxread, timeout)
File "/usr/lib/python3/dist-packages/pexpect/pty_spawn.py", line 485, in read_nonblocking
return super(spawn, self).read_nonblocking(size)
File "/usr/lib/python3/dist-packages/pexpect/spawnbase.py", line 178, in read_nonblocking
s = self._decoder.decode(s, final=False)
File "/usr/lib/python3.8/codecs.py", line 322, in decode
(result, consumed) = self._buffer_decode(data, self.errors, final)
UnicodeDecodeError: 'utf-8' codec can't decode byte 0xda in position 0: invalid continuation byte
Grub2 is not wrong in emitting those chars, and basically we should not
expect the packages we test to always emit correct UTF-8 sequences; at
the very least, this should not cause the test infra to fail.
We fix that by telling pexpect.spawn to "fix" such invalid sequences by
replacing them with the suitable Unicode character, U+FFFD REPLACEMENT
CHARACTER.
[0] https://en.wikipedia.org/wiki/Code_page_437
[1] https://docs.python.org/3/library/codecs.html#error-handlers
Signed-off-by: Kory Maincent <kory.maincent@bootlin.com>
[yann.morin.1998@free.fr:
- don't change encoding, use codec_errors
- rewrite commit log accordingly
]
Signed-off-by: Yann E. MORIN <yann.morin.1998@free.fr>
Buildroot is a simple, efficient and easy-to-use tool to generate embedded Linux systems through cross-compilation. The documentation can be found in docs/manual. You can generate a text document with 'make manual-text' and read output/docs/manual/manual.text. Online documentation can be found at http://buildroot.org/docs.html To build and use the buildroot stuff, do the following: 1) run 'make menuconfig' 2) select the target architecture and the packages you wish to compile 3) run 'make' 4) wait while it compiles 5) find the kernel, bootloader, root filesystem, etc. in output/images You do not need to be root to build or run buildroot. Have fun! Buildroot comes with a basic configuration for a number of boards. Run 'make list-defconfigs' to view the list of provided configurations. Please feed suggestions, bug reports, insults, and bribes back to the buildroot mailing list: buildroot@buildroot.org You can also find us on #buildroot on OFTC IRC. If you would like to contribute patches, please read https://buildroot.org/manual.html#submitting-patches