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Difference between revisions of "HOWTO-Debug-Endian-Issues"
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HOWTO-Debug-Endian-Issues (view source)
Revision as of 09:13, 8 January 2023
, 09:13, 8 January 2023Mention the Raspberry Pi being able to run big-endian NetBSD, just in case… untested
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#* Examples include the [https://www.raptorcs.com/content/BK1B01/intro.html Raptor Blackbird™] workstation. It is a powerful system which can run up-to-date Linux/BSD distributions, both in little-endian and big-endian modes. | #* Examples include the [https://www.raptorcs.com/content/BK1B01/intro.html Raptor Blackbird™] workstation. It is a powerful system which can run up-to-date Linux/BSD distributions, both in little-endian and big-endian modes. | ||
#* Unfortunately, it's a pricey niche system, and there's no guarantee that big-endian OS options will be maintained for long. | #* Unfortunately, it's a pricey niche system, and there's no guarantee that big-endian OS options will be maintained for long. | ||
#* NetBSD also allows [https://mail-index.netbsd.org/port-arm/2020/12/03/msg007117.html running a Raspberry Pi in big-endian mode], but this isn't been tested for ScummVM development yet. | |||
# Running a native, older big-endian development system: | # Running a native, older big-endian development system: | ||
#* Examples include buying an older G4 or G5 Apple PowerPC system, or an older SPARC64 Sun station<ref>Some MIPS and ARM boards also exist, but their quality can vary a lot, and although the MIPS and ARM architectures are theoretically bi-endian, in practice these development boards often only run in little-endian mode, nowadays. They can be useful for strict-alignment testing, though (but <code>-fsanitize=alignment -DSCUMM_NEED_ALIGNMENT</code> in UBSan on your regular desktop will also catch a lot of these issues).</ref>. They can often be bought second hand at very reasonable prices. | #* Examples include buying an older G4 or G5 Apple PowerPC system, or an older SPARC64 Sun station<ref>Some MIPS and ARM boards also exist, but their quality can vary a lot, and although the MIPS and ARM architectures are theoretically bi-endian, in practice these development boards often only run in little-endian mode, nowadays. They can be useful for strict-alignment testing, though (but <code>-fsanitize=alignment -DSCUMM_NEED_ALIGNMENT</code> in UBSan on your regular desktop will also catch a lot of these issues).</ref>. They can often be bought second hand at very reasonable prices. | ||