Fix mismatch of enum sizes between WASM and host#4676
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lum1n0us merged 1 commit intobytecodealliance:mainfrom Mar 9, 2026
Merged
Fix mismatch of enum sizes between WASM and host#4676lum1n0us merged 1 commit intobytecodealliance:mainfrom
lum1n0us merged 1 commit intobytecodealliance:mainfrom
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dkouba-atym
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TianlongLiang,
loganek,
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yamt
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I believe we should synchronize this modification with core/iwasm/libraries/lib-socket/inc/wasi_socket_ext.h. |
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Nov 6, 2025
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I have replaced enums to defines. Please let me know if you'd like to change some naming or anything else additionally in this PR. |
- refactor(wasi_types): deprecate enums in platform_wasi_types.h. - Use macros instead. Signed-off-by: Krisztian Szilvasi <34309983+kr-t@users.noreply.github.com> Signed-off-by: Dan Kouba <dan@atym.io>
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Squashed and rebased to latest main. |
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Mar 9, 2026
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While working with WAMR on Zephyr, I discovered that the sizes of a couple socket enums were not consistent between the host and inside of WASM. This resulted in an inability to create a UDP socket, as the layout of the enum was compressed (enums became 1 byte instead of 4) and the offset of
hints_enabledwas incorrect, and therefore all sockets created were TCP.In WASM:
sizes: enum=4, hints_t=12, off(type)=0 off(family)=4 off(en)=8In Zephyr host:
sizes: enum=1, hints_t=3, off(type)=0 off(family)=1 off(en)=2As a result I've enforced the struct sizes using the same method it was done for a different enum and added the appropriate assertions to validate.