[PR] Ltp linux kernel completement sys wait impl [nuttx]

["extinguish (via GitHub)" <gi...@apache.org>]

extinguish opened a new pull request, #17918:
URL: https://github.com/apache/nuttx/pull/17918

   ## Summary
   
   Add POSIX‑compliant wait‑status macros to support LTP (Linux Test Project) kernel testcases on NuttX:
   1. Implement WTERMSIG(s): Replace the dummy false definition with (((s) >> 8) & 0x7f) to correctly extract the terminating signal number from the wait status.
   2. Add WCOREDUMP(s): Define as (((s) >> 8) & 0x80) to indicate whether a terminated process produced a core dump.
   Both macros follow the POSIX wait‑status bit layout (signal number in bits 8–14, core‑dump flag in bit 7).
   
   ## Impact
   
   1. Enables LTP kernel testcases to compile and run on NuttX without implicit‑declaration warnings or incorrect behavior.
   2. Improves POSIX compliance of the <sys/wait.h> header by providing proper implementations of standard wait‑status inspection macros.
   
   ## Testing
   
   Verified that LTP testcases requiring WTERMSIG and WCOREDUMP now compile cleanly on NuttX.
   


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Re: [PR] Ltp linux kernel completement sys wait impl [nuttx]

["xiaoxiang781216 (via GitHub)" <gi...@apache.org>]

xiaoxiang781216 merged PR #17918:
URL: https://github.com/apache/nuttx/pull/17918


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