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2021-09-13Fix struct offset testing in ABI test caseDavid Oberhollenzer
The intention of the (severely incomplete) ABI test case is to detect changes to the ABI of libsquashfs. Currently it tries to blurt out if the layout of some structure is changed unintentionally. Unfortunately, the test uses some unportable assumptions. Among other things, it was assumed that a 64 bit field will always require 64 bit alignment. This is apparently no the case on 32 bit x86. This patch makes the check work on 32 bit and 64 bit x86, by adding an additional runtime check that relies on the __alignof__ extension offered by gcc and clang (the only 2 compilers that are really supported at the moment). Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2021-07-09ABI test: add sizes/layouts of structures likely to be expandedDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>
2021-03-06Cleanup: add some structure to the test directoryDavid Oberhollenzer
Signed-off-by: David Oberhollenzer <david.oberhollenzer@sigma-star.at>