Add 9player and introspect as programs beside the library

9player/: FUSE mount CLI that mounts a 9P2000 tree into a fresh user+mount
namespace and runs a program in it (no root, no libfuse, no libc).
introspect/: the 9P debug/introspection library (freestanding core, value
renderers, Linux probe with threads/stacks/memory/breakpoints/panics) and
its demo server. Each has its own build fragment; the root build.zig wires
them behind -D9player/-Dintrospect with namespaced steps (9player-itest,
introspect-check-freestanding, programs-test, ...) and exports the
introspect module for dependents. This is the layout for related programs.

Co-Authored-By: Claude Fable 5.1 <[email protected]>

1 files changed, 10 insertions, 0 deletions

diff --git a/introspect/test/adv_linux_probe.sh b/introspect/test/adv_linux_probe.sh
new file mode 100755
index 0000000..3535aa9
--- /dev/null
+++ b/introspect/test/adv_linux_probe.sh
@@ -0,0 +1,10 @@
+#!/usr/bin/env bash
+# Adversarial tests of the introspect Linux layer (probe loop, debug provider,
+# signal machinery) with raw 9P2000 over a unix socket and one 9player mount.
+# Usage: bash introspect/test/adv_linux_probe.sh <9player> <introspect>   (part of zig build introspect-adv)
+# Exit 1 on any failure; SKIP (exit 0) without python3.
+set -u
+PLAYER=$(realpath "${1:?path to 9player}")
+INTROSPECT=$(realpath "${2:?path to introspect}")
+command -v python3 >/dev/null || { echo "SKIP: python3 missing"; exit 0; }
+exec python3 "$(dirname "$0")/adv_linux_probe.py" --player "$PLAYER" --server "$INTROSPECT"