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, 19 insertions, 0 deletions

diff --git a/introspect/test/adversarial.sh b/introspect/test/adversarial.sh
new file mode 100755
index 0000000..918bb9a
--- /dev/null
+++ b/introspect/test/adversarial.sh
@@ -0,0 +1,19 @@
+#!/usr/bin/env bash
+# Runs every introspect adversarial suite in sequence: hostile raw-9P clients
+# against the demo (framing, tags, floods; the core's /vars, snapshots, fids)
+# and the Linux layer through one 9player mount (memory, signals, poll loop).
+# Usage: bash introspect/test/adversarial.sh <9player> <introspect> [--fast]
+# `zig build introspect-adv` runs the same suites as separate steps.
+set -u
+PLAYER=${1:?path to 9player}
+INTROSPECT=${2:?path to introspect}
+shift 2
+HERE=$(cd "$(dirname "$0")" && pwd)
+status=0
+for suite in adv_introspect_hostile adv_core_hostile; do
+    echo "### $suite"
+    if bash "$HERE/$suite.sh" "$INTROSPECT" "$@"; then echo "### $suite: ok"; else echo "### $suite: FAILED"; status=1; fi
+done
+echo "### adv_linux_probe"
+if bash "$HERE/adv_linux_probe.sh" "$PLAYER" "$INTROSPECT"; then echo "### adv_linux_probe: ok"; else echo "### adv_linux_probe: FAILED"; status=1; fi
+exit $status