[LTP] [PATCH v1 0/2] Refactor test state handling and clarify naming in lib

[Li Wang]

RFC -> V1
  * rebase code on the latest branch
  * replace pid_t by int32_t
  * memset zero in allocating ipc_region
  * adding back SAFE_MMAP in setup_ipc
  * set context->lib_pid in setup_ipc

CI job: https://github.com/wangli5665/ltp/actions/runs/15034122818

Also, manually tested by myself on RHEL-9.6 and RHEL-10.0 (all arches).

This patch series introduces two improvements to the test infrastructure:

1: Introduce shared struct context for runtime test state

This refactor consolidates scattered global runtime state variables
into a single struct context, which is stored in a new struct ipc_region.
This change is aimed at improving test robustness and maintainability
by enabling structured state sharing between parent and child processes,
particularly for tests requiring checkpointing or fork/exec workflows.

2: Rename tid to tcid

This is a simple but meaningful rename to avoid confusion between thread
ID (tid) and test case ID (tcid). This improves code clarity and avoids
misinterpretation during code review.

Li Wang (2):
  lib: rename tid to tcid
  lib: moves test infrastructure states into a shared context structure

 lib/tst_test.c | 234 ++++++++++++++++++++++++++++---------------------
 1 file changed, 132 insertions(+), 102 deletions(-)

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2.49.0