# SPDX-License-Identifier: AGPL-3.0-or-later
# Copyright (C) 2026 David (Corey) Herrera
# Foundry Blackhole backend — the BLOCKED-COLUMN resident matmul, off hardware.
#
#   make -f Makefile.matmulblock all && ./build-matmulblock/test_matmul_block
#
# NO CARD. The suite models resident_matmul_reader.c's read grid and L1 layout and
# resident_matmul_compute.c's indexed unpacks, then checks that the (A tile, B tile) pairs
# reaching each DST tile are exactly the matmul. That is the one property an SrcA stride or
# an L1 layout error breaks, and on the card it breaks it SILENTLY — every kernel completes.
#
# It reads kernels/resident_queue_protocol.h through FT_TT_KERNEL_DIR (default ../kernels)
# to pin the parameter-word contract. Running it from another directory without setting that
# is a FAILURE and not a skip.
#
# Two red arms are built in and run every time: an un-strided MOP and a K-major L1 layout.

CC      ?= cc
SRC_DIR := ..
BUILD   := build-matmulblock

CFLAGS  := -std=c99 -O1 -g \
           -Wall -Wextra -Werror -pedantic \
           -Wshadow -Wconversion -Wstrict-prototypes -Wformat=2 \
           -fstack-protector-strong \
           -I$(SRC_DIR) -I$(SRC_DIR)/kernels
LDLIBS  :=

# Header dependency tracking. Without it, editing a header rebuilds nothing and the link
# silently mixes objects compiled against two different layouts (best-practices §9).
DEPFLAGS := -MMD -MP

SOURCES := test_matmul_block.c ft_tt_test_report.c
OBJECTS := $(addprefix $(BUILD)/,$(notdir $(SOURCES:.c=.o)))
TARGET  := $(BUILD)/test_matmul_block

.PHONY: all clean run

all: $(TARGET)

$(BUILD):
	mkdir -p $(BUILD)

$(BUILD)/%.o: %.c | $(BUILD)
	$(CC) $(CFLAGS) $(DEPFLAGS) -c $< -o $@

$(TARGET): $(OBJECTS)
	$(CC) $(CFLAGS) $^ -o $@ $(LDLIBS)

run: $(TARGET)
	./$(TARGET)

clean:
	rm -rf $(BUILD)

-include $(OBJECTS:.o=.d)