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20dc5e5167
Adds two sections to the xipfs suite, guarded by CONFIG_FDPIC so a build without the loader is unaffected. They belong here rather than in their own test because what they exercise is modules loaded *out of the filesystem* -- the pin, the in-place mapping and the loader are one path. 'fdpic' asserts on the loader properties that otherwise fail *quietly*: a loader that skips DT_INIT_ARRAY runs a C++ module happily with every global left zero, one that skips DT_JMPREL loads a module that hard-faults only once it calls out, and one that mis-sizes the descriptor pool corrupts the heap. None of those announce themselves. The module exit status is the channel -- each module checks its own invariants and reports a bitmask. It also covers shared libraries across concurrent instances, per-instance data, the leaf-library GOT fallback, the R_ARM_FUNCDESC descriptor pool, and every firmware entry point that has to resolve a module callback, including mq_notify and timer_create with SIGEV_THREAD. 'reject' mutates a known-good module byte by byte and asserts the loader refuses it rather than loading something broken: a missing import, and more DT_NEEDED entries than the walk will follow. The modules are embedded as headers, for the same reason as in examples/fdpicxip, and built for cortex-m3 for the same reason: one set of blobs then runs on both the v7-M and v8-M targets. Their sources and the makefile that regenerates these headers live in apps/examples/fdpicxip/modules, so the copies the two apps carry are built from the same sources in the same way. Verified on a Pimoroni Pico Plus 2: fdpic 33/33, reject 7/7, and the whole suite 130/130 with them included. The same three numbers on mps2-an500 under QEMU, which is a Cortex-M7 rather than the RP2350's Cortex-M33. Assisted-by: Claude Code:claude-opus-5 Signed-off-by: Marco Casaroli <marco.casaroli@gmail.com> |
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| .. | ||
| callback_bin.h | ||
| CMakeLists.txt | ||
| counteruser_bin.h | ||
| cxxuser_bin.h | ||
| funcdesc_bin.h | ||
| Kconfig | ||
| lazymod_bin.h | ||
| libcounter_bin.h | ||
| libshape_bin.h | ||
| Make.defs | ||
| Makefile | ||
| manyneeded_bin.h | ||
| missingsym_bin.h | ||
| xipfs_main.c | ||