Files
LithosAnanke/kernel/tests/Makefile
T
Claude 2bac2ac8fc fix(v4): MINT-ZUSE wipes Zuse's seed on every return, not only on success (#176, the mint)
sk_v4_mint_zuse wiped seed and rseed only when the real Zuse was minted; its
refusals and every failure after YES left them in stack memory.

Option 1 (Captain Bob, 2026-11-12: "1 is great"): the seeds are in a 64-byte
buffer the caller owns. sk_v4_mint_zuse_with(seeds) runs the mint (now a
private mint()) and then wipes the buffer, whichever way it returned -- one
place, every exit; sk_v4_mint_zuse() gives it a buffer of its own.

kernel/tests/test_sk_v4_mint.c, 17 checks: the real gpt.c on the RAM disk, the
identity code, key mint, signature checks, marker and keyboard faked; each of
the mint's eight exits run with the buffer filled with 0xEE first -- no stick,
under 64 MiB, not YES, the key mint failing, the read-back not hers, no
marker, the marker write failing, and minted. Against the mint as it was: 7
failures (every exit but success). Now: 0. Both runs in logs/20261112-181719/. Built for
amd64, aarch64, riscv64. The identity code's two (sk_v4_genesis,
sk_v4_real_zuse_arrived) follow.

Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_017RzZgrf7V7Zk2iczBXDRbm
2026-11-12 18:17:19 +00:00

60 lines
2.8 KiB
Makefile

# SPDX-License-Identifier: LicenseRef-Starship-1.0
# Copyright (c) 2023-2026 Robert A. James
#
# The kernel host tests (docs/v4.0.0/plans/2026-11-12-kernel-host-tests.md): each test_<unit>.c
# built on the host with the kernel source file(s) it tests and the fakes, nothing else of the
# kernel, and run.
#
# make -C kernel/tests test build and run them all; fails if any check fails
# make -C kernel/tests run-test_gpt
#
# A test's sources are SRC_<test>; give another on the command line to run the same test against
# it (how a test is seen to fail against the code before a fix):
# make -C kernel/tests run-test_gpt SRC_test_gpt=/path/to/old/gpt.c
HERE := $(abspath $(dir $(lastword $(MAKEFILE_LIST))))
ROOT := $(abspath $(HERE)/../..)
BUILD := $(ROOT)/build/kernel-tests
CC ?= cc
CFLAGS := -std=c99 -Wall -Wextra -Werror -O2 -g -I$(HERE) -I$(ROOT)/kernel/include \
-I$(ROOT)/kernel/include/starkernel -I$(ROOT)/v3/include
TESTS := test_gpt test_usb_config test_sk_v4_stop test_sk_v4_slots test_sk_v4_mint
SRC_test_sk_v4_mint := $(ROOT)/kernel/src/v4/sk_v4_mint.c $(ROOT)/kernel/src/gpt.c
EXTRA_test_sk_v4_mint := -D__STARKERNEL__ -I$(ROOT)/v4/include
SRC_test_sk_v4_slots := $(ROOT)/kernel/src/v4/sk_v4_slots.c
SRC_test_sk_v4_stop := $(ROOT)/kernel/src/v4/sk_v4_stop.c
SRC_test_gpt := $(ROOT)/kernel/src/gpt.c
SRC_test_usb_config := $(ROOT)/kernel/src/usb/usb_config.c
define TEST_RULE
$(BUILD)/$(1): $(HERE)/$(1).c $(HERE)/fakes.c $(HERE)/fakes.h $(HERE)/harness.h $$(SRC_$(1))
@mkdir -p $(BUILD)
$(CC) $(CFLAGS) $$(EXTRA_$(1)) $(HERE)/$(1).c $(HERE)/fakes.c $$(SRC_$(1)) -o $$@
.PHONY: run-$(1)
run-$(1): $(BUILD)/$(1)
@echo "$(1)"
@$(BUILD)/$(1)
endef
$(foreach t,$(TESTS),$(eval $(call TEST_RULE,$(t))))
.PHONY: test
test: $(addprefix run-,$(TESTS))
@echo "all kernel host tests passed"
# #182: sk_v4_grow.c's 32-bit block arithmetic holds while Artemis is capped below 4 TiB -- the build
# itself refuses a cap past that. Seen here: 256 GiB (the real cap) compiles, 4096 GiB must not.
.PHONY: run-check_cap
run-check_cap:
@echo "check_cap"
@$(CC) $(CFLAGS) -I$(ROOT)/v4/include -DSTICK_ARTEMIS_CAP_GIB=256ULL -c $(ROOT)/kernel/src/v4/sk_v4_grow.c -o /dev/null \
|| { echo "FAIL #182: sk_v4_grow.c does not build with the real cap, 256 GiB"; exit 1; }
@if $(CC) $(CFLAGS) -I$(ROOT)/v4/include -DSTICK_ARTEMIS_CAP_GIB=4096ULL -c $(ROOT)/kernel/src/v4/sk_v4_grow.c -o /dev/null 2>/dev/null; then \
echo "FAIL #182: a 4096 GiB cap builds -- its block numbers do not fit 32 bits, and nothing stops it"; exit 1; fi
@if $(CC) $(CFLAGS) -I$(ROOT)/v4/include -c $(ROOT)/kernel/src/v4/sk_v4_grow.c -o /dev/null 2>/dev/null; then \
echo "FAIL #182: no cap defined builds -- the check would be skipped, not failed"; exit 1; fi
@echo " 3 checks, 0 failures"
test: run-check_cap