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Add bitfield tests for big-endian arch
Issue: #1885
Signed-off-by: Alexander Egorenkov <Alexander.Egorenkov@ibm.com>
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Use native byte-order for IPC and program serialization.
This way we will be able to support both little- and big-endian
architectures.
Signed-off-by: Alexander Egorenkov <Alexander.Egorenkov@ibm.com>
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csum_inet_update does not handle odd number of bytes
on big-endian architectures correctly. When calculating
the checksum of odd number of bytes, the last byte must be
interpreted as LSB on little-endian architectures and
as MSB on big-endian ones in a 16-bit half-word.
Futhermore, the checksum tests assume that the underlying architecture
is always little-endian. When a little-endian machine stores
a calculated checksum into memory, then the checksum's bytes
are automatically swapped. But this is NOT true on a big-endian
architecture.
Signed-off-by: Alexander Egorenkov <Alexander.Egorenkov@ibm.com>
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Currently we apply big-endian-ness and bitfield-ness in the wrong order in copyin.
This leads to totally bogus result. Fix this.
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test_copyin does bad things. Fix that.
executor/test.h: In function ‘int test_copyin()’:
executor/common.h:299:16: error: dereferencing type-punned pointer will break strict-aliasing rules [-Werror=strict-aliasing]
*(type*)(addr) = (type)(val); \
^
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Make as much code as possible shared between all OSes.
In particular main is now common across all OSes.
Make more code shared between executor and csource
(in particular, loop function and threaded execution logic).
Also make loop and threaded logic shared across all OSes.
Make more posix/unix code shared across OSes
(e.g. signal handling, pthread creation, etc).
Plus other changes along similar lines.
Also support test OS in executor (based on portable posix)
and add 4 arches that cover all execution modes
(fork server/no fork server, shmem/no shmem).
This change paves way for testing of executor code
and allows to preserve consistency across OSes and executor/csource.
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