Makefile.profile

# Makefile — PiStorm emulator
#
# Fixes applied:
#  - Prevent 0-byte/partial binaries on failed or interrupted link:
#      * .DELETE_ON_ERROR
#      * atomic link (link to $@.tmp then mv on success)
#  - Avoid linking headers as inputs (m68kops.h no longer appears in link line)
#  - Keep generated Musashi files ordered correctly
#  - Preserve the original "nice" MAINFILES style (MAINFILES += per-line) so
#    lines can be commented out easily.
#
# Usage examples:
#   make
#   make clean; make
#   make USE_ALSA=0
#   make USE_RAYLIB=0
#   make PLATFORM=ZEROW2_64

EXENAME          ?= emulator

PLATFORM ?= PI4_64BIT

# Enable batching (set to 1) and/or IPL rate limiting (set to interval in us) 100us seems best in tests
PISTORM_ENABLE_BATCH ?= 1
PISTORM_IPL_RATELIMIT_US ?= 100  

PISTORM_KMOD ?= 1

# Default compilers (can still override with CC=... directly)
CC  ?= gcc
CXX ?= g++

# Legacy shorthand: make C=clang or make C=gcc
ifeq ($(C),clang)
CC  := clang
CXX := clang++
endif

ifeq ($(C),gcc)
CC  := gcc
CXX := g++
endif


EXTRA_CFLAGS ?= -O3 
#-g -O0
EXTRA_M68K_CFLAGS ?= -O3
#-g -O0
EXTRA_LDFLAGS ?= 
#-g -O0


# Tunables: edit here instead of hunting through rule bodies.
# WARNINGS   : compiler warnings; keep strict by default.
# OPT_LEVEL  : optimisation level (-Os/-O2/-O3). Can also set O=2,3,...
# USE_GOLD   : set to 1 to prefer gold linker (if installed).
# USE_RAYLIB : set to 0 to drop raylib/DRM deps and use a null RTG backend.
# USE_ALSA   : set to 0 to drop ALSA/ahi builds and -lasound.
# USE_PMMU   : set to 1 to enable Musashi PMMU support (experimental).
# USE_EC_FPU : set to 1 to force FPU on EC/020/LC/EC040 variants (for 68881/68882 emu).
# ARCH_FEATURES : optional AArch64 feature modifiers (e.g. +crc+simd+fp16+lse).
# CPUFLAGS   : per-platform tuning defaults below; override if needed.
# RAYLIB_*   : raylib include/lib paths; adjust for custom builds.
# USE_VC     : legacy (no longer required for pistorm-dev).
# USE_LTO    : set to 1 to enable link-time optimisation (-flto) on build and link.
# USE_NO_PLT : set to 1 to pass -fno-plt for direct calls (glibc-specific; default off).
# OMIT_FP    : set to 1 to omit frame pointers (-fomit-frame-pointer) for perf.
# USE_PIPE   : set to 1 to add -pipe to compile steps.
# M68K_WARN_SUPPRESS : extra warning suppressions for the generated Musashi core.
#
# Base warnings
VERBOSE ?= 0
WARNINGS_VERBOSE ?= -Wall -Wextra -pedantic
WARNINGS_QUIET   ?= -Wall
ifeq ($(VERBOSE),1)
WARNINGS ?= $(WARNINGS_VERBOSE)
else
WARNINGS ?= $(WARNINGS_QUIET)
endif

# Extra-aggressive warnings for emulator / non-Musashi code
ifeq ($(VERBOSE),1)
EMU_WARNINGS_EXTRA = \
  -Wformat=2 -Wwrite-strings -Wcast-qual -Wcast-align \
  -Wpointer-arith -Wstrict-overflow=5 -Wstrict-prototypes -Wmissing-prototypes \
  -Wswitch-enum -Wshadow \
  -Wconversion -Wsign-conversion \
  -Wundef -Wvla -Wredundant-decls
else
EMU_WARNINGS_EXTRA =
endif

EMU_WARNINGS  ?= $(WARNINGS) $(EMU_WARNINGS_EXTRA)

ifeq ($(findstring clang,$(CC)),)
OPT_LEVEL_DEFAULT ?= -Ofast -ffast-math
else
OPT_LEVEL_DEFAULT ?= -O3 -ffast-math
endif

OPT_LEVEL ?= $(OPT_LEVEL_DEFAULT)

ifdef O
OPT_LEVEL := -O$(O)
endif

# Set USE_GOLD=1 to link with gold if available.
USE_GOLD   ?= 0

include config.mk

# Toggle RTG output backends: 1=raylib (default), 0=null stub.
USE_RAYLIB ?= 1
# Toggle ALSA-based audio (Pi AHI). If 0, drop pi_ahi and -lasound.
USE_ALSA   ?= 1

# Toggle PMMU emulation (68030/040). Default on; disable with USE_PMMU=0 if needed.
USE_PMMU   ?= 1

# Force FPU on EC/020/EC040/LC040 for 68881/68882 emulation (optional).
USE_EC_FPU ?= 0

ARCH_FEATURES ?=
# Toggle Pi host (/opt/vc) support for dev tools.
USE_VC     ?= 0
# Perf toggles
USE_LTO    ?= 0
USE_NO_PLT ?= 1 
OMIT_FP    ?= 1
USE_PIPE   ?= 1
PISTORM_KMOD ?= 1

# Quiet noisy-but-benign warnings from the generated 68k core.
# Split into common + GCC-only; clang doesn't support every GCC flag.
M68K_WARN_SUPPRESS_COMMON = \
  -Wno-unused-variable \
  -Wno-unused-parameter

M68K_WARN_SUPPRESS_GCC = \
  -Wno-unused-but-set-variable

# Pick suppressions based on the actual compiler (CC), not C.
ifeq ($(findstring clang,$(CC)),clang)
  M68K_WARN_SUPPRESS ?= $(M68K_WARN_SUPPRESS_COMMON)
else
  M68K_WARN_SUPPRESS ?= $(M68K_WARN_SUPPRESS_COMMON) $(M68K_WARN_SUPPRESS_GCC)
endif

# Default CPU flags; overridden by PLATFORM selections below.
CPUFLAGS   ?= -march=armv8-a+crc -mtune=cortex-a53

# Raylib paths can be swapped if you use a custom build.
#RAYLIB_INC    ?= -I./src/raylib_drm #raylib
#RAYLIB_LIBDIR ?= -L./src/raylib_drm #raylib_drm

RAYLIB_DIR := $(CURDIR)/src/raylib_drm
RAYLIB_INC := -I$(RAYLIB_DIR)/src
RAYLIB_LIB := $(RAYLIB_DIR)/build/raylib/libraylib.a

PREFIX        ?= /opt/pistorm64
DESTDIR       ?=
INSTALL       ?= install
AMIGA_TOOLCHAIN ?= /opt/amiga
AMIGA_VBCC ?= $(AMIGA_TOOLCHAIN)/vbcc
AMIGA_P96DEV ?= $(CURDIR)/amiga.dev/Picasso96Develop
AMIGA_AHI_INC ?= $(AMIGA_TOOLCHAIN)/src/m68k-amigaos-gcc/build-Linux-m68k-amigaos/vbcc_target_m68k-amigaos/targets/m68k-amigaos/include
AMIGA_HEADERS ?= $(CURDIR)/src/platforms/amiga/headers/include
AMIGA_SUBMAKE = $(MAKE) AMIGA_TOOLCHAIN=$(AMIGA_TOOLCHAIN) VBCC=$(AMIGA_VBCC) P96DEV=$(AMIGA_P96DEV) AHI_INC=$(AMIGA_AHI_INC) AMIGA_HEADERS=$(AMIGA_HEADERS)

PS_PROTOCOL_SRC := src/gpio/ps_protocol_kmod.c
PS_BACKEND_SRCS := src/pistorm/backend.c src/pistorm/backend_kmod.c src/pistorm/backend_userspace_mmio.c


MAINFILES =

MAINFILES += src/emulator.c
# TEST DOES FC EMIT 
MAINFILES += src/emulator_fc.c

MAINFILES += src/log.c
MAINFILES += src/memory_mapped.c


MAINFILES += src/config_file/config_file.c
MAINFILES += src/config_file/rominfo.c

MAINFILES += src/input/input.c
MAINFILES += $(PS_PROTOCOL_SRC)
MAINFILES += $(PS_BACKEND_SRCS)

MAINFILES += src/platforms/platforms.c
MAINFILES += src/z3bus_iface.c
MAINFILES += src/platforms/amiga/amiga_zorro.c
MAINFILES += src/platforms/amiga/zorro/z3bus_demo/z3bus_demo.c
MAINFILES += src/platforms/amiga/zorro/serial_echo/serial_echo.c
MAINFILES += src/platforms/amiga/zorro/z2_rng/z2_rng.c
MAINFILES += src/platforms/amiga/zorro/z2_pissa/z2_pissa.c
MAINFILES += src/host/crypto/pi_crypto_openssl.c

MAINFILES += src/platforms/amiga/amiga-autoconf.c
MAINFILES += src/platforms/amiga/amiga-platform.c
MAINFILES += src/platforms/amiga/amiga-registers.c
MAINFILES += src/platforms/amiga/amiga-interrupts.c

MAINFILES += src/platforms/mac68k/mac68k-platform.c

MAINFILES += src/platforms/dummy/dummy-platform.c
MAINFILES += src/platforms/dummy/dummy-registers.c

MAINFILES += src/platforms/amiga/Gayle.c
MAINFILES += src/platforms/amiga/hunk-reloc.c
MAINFILES += src/platforms/amiga/cdtv-dmac.c

MAINFILES += src/platforms/amiga/pirtg64/pirtg64.c
MAINFILES += src/platforms/amiga/pirtg64/pirtg64-output-raylib.c
MAINFILES += src/platforms/amiga/pirtg64/pirtg64-gfx.c

MAINFILES += src/platforms/amiga/piscsi/piscsi.c
MAINFILES += src/platforms/amiga/net/pi-net.c
MAINFILES += src/leds/osd_leds.c

MAINFILES += src/platforms/shared/rtc.c
MAINFILES += src/platforms/shared/common.c

# self-tests
MAINFILES += src/selftest.c


ifeq ($(USE_RAYLIB),0)
MAINFILES := $(filter-out src/platforms/amiga/pirtg64/pirtg64-output-raylib.c,$(MAINFILES))
MAINFILES += src/platforms/amiga/pirtg64/pirtg64-output-null.c
endif

ifeq ($(USE_ALSA),0)
MAINFILES := $(filter-out src/platforms/amiga/ahi/pi_ahi.c,$(MAINFILES))
MAINFILES += src/platforms/amiga/ahi/pi_ahi_stub.c
LDLIBS_ALSA :=
else
MAINFILES := $(filter-out src/platforms/amiga/ahi/pi_ahi_stub.c,$(MAINFILES))
MAINFILES += src/platforms/amiga/ahi/pi_ahi.c
LDLIBS_ALSA := -lasound
endif


# PiStorm-dev now uses sysfs and no longer depends on /opt/vc.
MAINFILES := $(filter-out src/platforms/amiga/pistorm-dev/pistorm-dev-stub.c,$(MAINFILES))
MAINFILES += src/platforms/amiga/pistorm-dev/pistorm-dev.c
VC_INC    :=
VC_LIBDIR :=
LDLIBS_VC :=

ifeq ($(USE_PMMU),1)
DEFINES += -DPISTORM_EXPERIMENT_PMMU
endif

ifeq ($(USE_EC_FPU),1)
DEFINES += -DPISTORM_ENABLE_020_FPU -DPISTORM_ENABLE_EC040_FPU
endif

MUSASHIFILES     = src/musashi/m68kcpu.c src/musashi/m68kdasm.c src/musashi/softfloat/softfloat.c src/musashi/softfloat/softfloat_fpsp.c
MUSASHIGENCFILES = src/musashi/m68kops.c
MUSASHIGENHFILES = src/musashi/m68kops.h
MUSASHIGENERATOR = m68kmake

EXE =
EXEPATH = ./

# Define the m68k related files separately to control build order
M68KFILES = $(MUSASHIFILES) $(MUSASHIGENCFILES)
.CFILES   = $(MAINFILES) $(M68KFILES)
.OFILES   = $(.CFILES:%.c=%.o) src/a314/a314.o

CC  ?= gcc
CXX ?= g++

DEFINES  += -D_FILE_OFFSET_BITS=64 -D_LARGEFILE_SOURCE -D_LARGEFILE64_SOURCE -DINLINE_INTO_M68KCPU_H=1
# Allow command-line override of batching and rate limiting for performance tuning
PISTORM_ENABLE_BATCH ?= 0
PISTORM_IPL_RATELIMIT_US ?= 0
PISTORM_USE_DIRECT_OPS ?= 0
DEFINES  += -DPISTORM_ENABLE_BATCH=$(PISTORM_ENABLE_BATCH) -DPISTORM_IPL_RATELIMIT_US=$(PISTORM_IPL_RATELIMIT_US) -DPISTORM_USE_DIRECT_OPS=$(PISTORM_USE_DIRECT_OPS)
LD_GOLD   = $(if $(filter 1,$(USE_GOLD)),-fuse-ld=gold,)
LTO_FLAGS = $(if $(filter 1,$(USE_LTO)),-flto=auto,)
NO_LTO_FLAGS = $(if $(filter 1,$(USE_LTO)),-fno-lto,)
PLT_FLAGS = $(if $(filter 1,$(USE_NO_PLT)),-fno-plt,)
FP_FLAGS  = $(if $(filter 1,$(OMIT_FP)),-fomit-frame-pointer,)
PIPE_FLAGS= $(if $(filter 1,$(USE_PIPE)),-pipe,)

# -------------------------
# Profiling / PGO support
#
# Targets:
#   make profile      -> instrumented build (generates profile data)
#   make runprofile   -> runs emulator to collect profile data
#   make buildprofile -> rebuild using collected profile data (PGO)
#
# PGO_MODE:
#   gen -> build with instrumentation
#   use -> build using collected profile data

PGO_DIR   ?= .pgo
PGO_MODE  ?=

# Build-time compile profiling (clang: JSON traces, gcc: text report)
BUILD_TRACE ?= 0

PROFILE_CFLAGS  :=
PROFILE_LDFLAGS :=
PROFILE_LDLIBS :=
TRACE_CFLAGS    :=

ifeq ($(findstring clang,$(CC)),clang)
  # Clang/LLVM PGO
  ifeq ($(PGO_MODE),gen)
    PROFILE_CFLAGS  += -fprofile-instr-generate
    PROFILE_LDFLAGS += -fprofile-instr-generate
  endif
  ifeq ($(PGO_MODE),use)
    PROFILE_CFLAGS  += -fprofile-instr-use=$(PGO_DIR)/pgo.profdata
    PROFILE_LDFLAGS += -fprofile-instr-use=$(PGO_DIR)/pgo.profdata
  endif

  ifeq ($(BUILD_TRACE),1)
    TRACE_CFLAGS += -ftime-trace
  endif
else
  # GCC PGO
  ifeq ($(PGO_MODE),gen)
    PROFILE_CFLAGS  += -fprofile-generate=$(PGO_DIR)
    PROFILE_LDFLAGS += -fprofile-generate=$(PGO_DIR)
  endif
  ifeq ($(PGO_MODE),use)
    PROFILE_CFLAGS  += -fprofile-use=$(PGO_DIR) -fprofile-correction
    PROFILE_LDFLAGS += -fprofile-use=$(PGO_DIR) -fprofile-correction
  endif

  ifneq (,$(filter gen use,$(PGO_MODE)))
    PROFILE_LDLIBS += -lgcov
  endif

  ifeq ($(BUILD_TRACE),1)
    TRACE_CFLAGS += -ftime-report
  endif
endif

# Platform-specific tuning and raylib variants.
ifeq ($(PLATFORM),PI4)
CPUFLAGS = -mcpu=cortex-a72 -mtune=cortex-a72 -march=armv8-a+crc -mfpu=neon-fp-armv8 -mfloat-abi=hard
RAYLIB_DIR := $(CURDIR)/src/raylib_drm
RAYLIB_INC := -I$(RAYLIB_DIR)/src
RAYLIB_LIB := $(RAYLIB_DIR)/build/raylib/libraylib.a
DEFINES      += -DRPI4_TEST
else ifeq ($(PLATFORM),PI4_64BIT)
CPUFLAGS = -mcpu=cortex-a72 -mtune=cortex-a72 -march=armv8-a+crc
RAYLIB_DIR := $(CURDIR)/src/raylib_drm
RAYLIB_INC := -I$(RAYLIB_DIR)/src
RAYLIB_LIB := $(RAYLIB_DIR)/build/raylib/libraylib.a
DEFINES      += -DRPI4_TEST

else ifeq ($(PLATFORM),PI4_64BIT_NATIVE)
CPUFLAGS = -mcpu=native -mtune=native -march=native
RAYLIB_DIR := $(CURDIR)/src/raylib_drm
RAYLIB_INC := -I$(RAYLIB_DIR)/src
RAYLIB_LIB := $(RAYLIB_DIR)/build/raylib/libraylib.a
DEFINES      += -DRPI4_TEST

else ifeq ($(PLATFORM),PI4_NATIVE)
CPUFLAGS = -march=native
RAYLIB_DIR := $(CURDIR)/src/raylib_drm
RAYLIB_INC := -I$(RAYLIB_DIR)/src
RAYLIB_LIB := $(RAYLIB_DIR)/build/raylib/libraylib.a
DEFINES      += -DRPI4_TEST
else ifeq ($(PLATFORM),PI4_64BIT_DEBUG)
CPUFLAGS = -mcpu=cortex-a72 -mtune=cortex-a72 -march=armv8-a+crc
RAYLIB_DIR := $(CURDIR)/src/raylib_drm
RAYLIB_INC := -I$(RAYLIB_DIR)/src
RAYLIB_LIB := $(RAYLIB_DIR)/build/raylib/libraylib.a
DEFINES      += -DRPI4_TEST
OPT_LEVEL := -O0 
EXTRA_CFLAGS += -fno-omit-frame-pointer
EXTRA_LDFLAGS += 
else ifeq ($(PLATFORM),PI3_BULLSEYE)
CPUFLAGS = -mcpu=cortex-a53 -mtune=cortex-a53 -march=armv8-a+crc
else ifeq ($(PLATFORM),PI_64BIT)
CPUFLAGS = -mcpu=cortex-a53 -mtune=cortex-a53 -march=armv8-a+crc
else ifeq ($(PLATFORM),ZEROW2_64)
CPUFLAGS = -mcpu=cortex-a53 -mtune=cortex-a53 -march=armv8-a+crc
else ifeq ($(PLATFORM),NATIVE) 
CPUFLAGS = -march=native
endif

# Optional manual overrides for CPU tuning.
ifdef MARCH
CPUFLAGS := $(filter-out -march=%,$(CPUFLAGS)) -march=$(MARCH)
endif
ifdef MCPU
CPUFLAGS := $(filter-out -mcpu=%,$(CPUFLAGS)) -mcpu=$(MCPU)
endif
ifdef MTUNE
CPUFLAGS := $(filter-out -mtune=%,$(CPUFLAGS)) -mtune=$(MTUNE)
endif

# Optional AArch64 feature modifiers (e.g. +crc+simd+fp16+lse). Leave blank to keep defaults.
ifneq ($(strip $(ARCH_FEATURES)),)
CPUFLAGS := $(patsubst -march=%,-march=%$(ARCH_FEATURES),$(CPUFLAGS))
CPUFLAGS := $(patsubst -mcpu=%,-mcpu=%$(ARCH_FEATURES),$(CPUFLAGS))
endif


RAYLIB_A := $(RAYLIB_LIB)
OPENSSL_CFLAGS := $(shell pkg-config --cflags openssl 2>/dev/null)
OPENSSL_LIBS := $(shell pkg-config --libs openssl 2>/dev/null)

BASE_LIBS := -lm -ldl -lstdc++
ifneq ($(OPENSSL_LIBS),)
BASE_LIBS += $(OPENSSL_LIBS)
INCLUDES += $(OPENSSL_CFLAGS)
endif
RAYLIB_LIBS := $(RAYLIB_A) -lEGL -lGLESv2 -ldrm -lgbm
ifeq ($(USE_RAYLIB),0)
RAYLIB_LIBS :=
RAYLIB_INC    =
RAYLIB_LIBDIR =
endif

LIBS := $(BASE_LIBS)

INCLUDES  = -I. -Isrc -Isrc/musashi $(RAYLIB_INC) $(VC_INC)
LDSEARCH  = -L/usr/local/lib $(VC_LIBDIR) $(RAYLIB_LIBDIR)

ifeq ($(PISTORM_KMOD),1)
INCLUDES += -Iinclude -Iinclude/uapi
DEFINES  += -DPISTORM_KMOD
endif

CXX_WARNINGS = $(filter-out -Wstrict-prototypes -Wmissing-prototypes,$(EMU_WARNINGS))
CFLAGS       = $(EMU_WARNINGS) $(OPT_LEVEL) $(CPUFLAGS) $(DEFINES) $(INCLUDES) $(ACFLAGS) $(LTO_FLAGS) $(PLT_FLAGS) $(FP_FLAGS) $(PIPE_FLAGS) $(PROFILE_CFLAGS) $(TRACE_CFLAGS) $(EXTRA_CFLAGS)
CXXFLAGS     = $(CXX_WARNINGS) $(OPT_LEVEL) $(CPUFLAGS) $(DEFINES) $(INCLUDES) $(LTO_FLAGS) $(PLT_FLAGS) $(FP_FLAGS) $(PIPE_FLAGS) $(PROFILE_CFLAGS) $(TRACE_CFLAGS) $(EXTRA_CFLAGS)
M68K_CFLAGS   = $(WARNINGS) $(OPT_LEVEL) $(CPUFLAGS) $(DEFINES) $(INCLUDES) $(ACFLAGS) $(LTO_FLAGS) $(PLT_FLAGS) $(FP_FLAGS) $(PIPE_FLAGS) $(PROFILE_CFLAGS) $(TRACE_CFLAGS) $(M68K_WARN_SUPPRESS) $(EXTRA_M68K_CFLAGS)
LDFLAGS      = $(WARNINGS) $(LD_GOLD) $(LDSEARCH) $(LTO_FLAGS) $(PROFILE_LDFLAGS) $(EXTRA_LDFLAGS)

LDLIBS   = $(RAYLIB_LIBS) $(LIBS) $(LDLIBS_VC) $(LDLIBS_ALSA) $(PROFILE_LDLIBS)

TARGET = $(EXENAME)$(EXE)
INSTALL_DIR := $(DESTDIR)$(PREFIX)
CONFIG_FILES := default.cfg amiga.cfg mac68k.cfg test.cfg x68k.cfg
INSTALL_BINS := $(TARGET) buptest pistorm_truth_test #
UDEV_RULES := etc/udev/99-pistorm.rules
LIMITS_CONF := etc/security/limits.d/pistorm-rt.conf
MODULES_LOAD := etc/modules-load.d/pistorm.conf
HELP_TARGETS = \
	"make"                             "Build emulator (kmod backend default)" \
	"make PISTORM_KMOD=0"             "Build emulator with legacy userspace GPIO" \
	"make clean"                      "Remove build artifacts" \
	"make amiga-net"                  "Build Amiga net driver (.device)" \
	"make amiga-piscsi"               "Build Amiga PiSCSI driver + bootrom" \
	"make amiga-rtg"                  "Build Amiga RTG driver (.card)" \
	"make amiga-ahi"                  "Build Amiga AHI driver (.audio)" \
	"make amiga-pissa"                "Build Amiga PISSA crypto tools" \
	"make amiga-pissl"                "Build Amiga PISSL TLS tools" \
	"make amiga-all"                  "Build all Amiga-side drivers" \
	"make amiga-clean"                "Clean Amiga-side driver build artifacts" \
	"make install [PREFIX=… DESTDIR=…]" "Install emulator, data/, configs, piscsi.rom, a314 files" \
	"make uninstall [PREFIX=… DESTDIR=…]" "Remove installed tree" \
	"make kernel_module"              "Retired target (no-op; kernel module left in tree)" \
	"make kernel_module_pistorm"      "Retired target (no-op)" \
	"make kernel_module_z3bus"        "Retired target (no-op)" \
	"make kernel_install"             "Retired target (no-op)" \
	"make kernel_install_build"       "Retired target (no-op)" \
	"make kernel_install_pistorm"     "Retired target (no-op)" \
	"make kernel_install_z3bus"       "Retired target (no-op)" \
	"make kernel_clean"               "Retired target (no-op)" \
	"make profile"                    "Build emulator with PGO instrumentation" \
	"make runprofile"                 "Run emulator to generate PGO profile data" \
	"make buildprofile"               "Rebuild emulator using PGO profile data + compile trace" \
	"make "            "Build interactive bus monitor" \
	"make full"         "Stop emulator, rebuild userspace, install"

# Safety: never leave partial outputs
.DELETE_ON_ERROR:

DELETEFILES = $(MUSASHIGENCFILES) $(MUSASHIGENHFILES) $(.OFILES) $(.OFILES:%.o=%.d) $(TARGET) buptest  .d pistorm_truth_test pistorm_truth_test.d $(MUSASHIGENERATOR)$(EXE)

all: $(MUSASHIGENCFILES) $(MUSASHIGENHFILES) $(TARGET) buptest pistorm_truth_test 

clean:
	rm -f $(DELETEFILES)
	rm -rf src/a314/files_pi/__pycache__

# Ensure generated m68k files are built before other files that depend on them
# Link is atomic: write to $@.tmp then move into place on success.
OBJS_LINK = $(filter %.o,$^)

$(TARGET): $(MUSASHIGENHFILES) $(MUSASHIGENCFILES:%.c=%.o) $(MAINFILES:%.c=%.o) $(MUSASHIFILES:%.c=%.o) src/a314/a314.o
	$(CC) $(LDFLAGS) -o $@.tmp $(OBJS_LINK) $(LDLIBS) && mv -f $@.tmp $@

# Explicit rules to keep the generated 68k core quiet on unused-temp warnings.
src/musashi/m68kcpu.o: src/musashi/m68kcpu.c src/musashi/m68kops.h
	$(CC) -MMD -MP $(M68K_CFLAGS) $(NO_LTO_FLAGS) -c -o $@ $<

src/musashi/m68kops.o: src/musashi/m68kops.c src/musashi/m68kops.h
	$(CC) -MMD -MP $(M68K_CFLAGS) $(NO_LTO_FLAGS) -c -o $@ $<

src/musashi/m68kdasm.o: src/musashi/m68kdasm.c src/musashi/m68kops.h
	$(CC) -MMD -MP $(M68K_CFLAGS) $(NO_LTO_FLAGS) -c -o $@ $<

src/musashi/softfloat/softfloat.o: src/musashi/softfloat/softfloat.c
	$(CC) -MMD -MP $(CFLAGS) $(NO_LTO_FLAGS) -c -o $@ $<

src/musashi/softfloat/softfloat_fpsp.o: src/musashi/softfloat/softfloat_fpsp.c
	$(CC) -MMD -MP $(CFLAGS) $(NO_LTO_FLAGS) -c -o $@ $<

src/emulator.o: src/emulator.c src/musashi/m68kops.h
	$(CC) -MMD -MP $(CFLAGS) -c -o $@ $<

buptest: src/buptest/buptest.c $(PS_PROTOCOL_SRC) $(PS_BACKEND_SRCS) src/log.c
	@if [ -f src/buptest/buptest.c ]; then \
		$(CC) $(CFLAGS) -o $@ src/buptest/buptest.c $(PS_PROTOCOL_SRC) $(PS_BACKEND_SRCS) src/log.c; \
	else \
		echo "buptest skipped (src/buptest/buptest.c missing)"; \
	fi

pistorm_truth_test: tools/pistorm_truth_test.c $(PS_PROTOCOL_SRC) $(PS_BACKEND_SRCS) src/log.c
	$(CC) $(CFLAGS) -o $@ tools/pistorm_truth_test.c $(PS_PROTOCOL_SRC) $(PS_BACKEND_SRCS) src/log.c

: tools/.c include/uapi/linux/pistorm.h
	$(CC) -MMD -MP $(CFLAGS) -Iinclude -Iinclude/uapi -o $@ $<

src/a314/a314.o: src/a314/a314.cc src/a314/a314.h
	$(CXX) -MMD -MP -c -o src/a314/a314.o $(CXXFLAGS) $(NO_LTO_FLAGS) src/a314/a314.cc

$(MUSASHIGENCFILES) $(MUSASHIGENHFILES): $(MUSASHIGENERATOR)$(EXE)
	cp $(MUSASHIGENERATOR)$(EXE) src/musashi/ && cd src/musashi && ./$(MUSASHIGENERATOR)$(EXE) && rm -f src/musashi/$(MUSASHIGENERATOR)$(EXE)

$(MUSASHIGENERATOR)$(EXE): src/musashi/$(MUSASHIGENERATOR).c
	$(CC) -MMD -MP  -o $(MUSASHIGENERATOR)$(EXE) src/musashi/$(MUSASHIGENERATOR).c

install: all
	$(INSTALL) -d $(INSTALL_DIR)
	for bin in $(INSTALL_BINS); do \
		[ -x $$bin ] && $(INSTALL) -m 755 $$bin $(INSTALL_DIR)/; \
	done
	for cfg in $(CONFIG_FILES); do \
		[ -f $$cfg ] && $(INSTALL) -m 644 $$cfg $(INSTALL_DIR)/; \
	done
	$(INSTALL) -d $(INSTALL_DIR)/src/platforms/amiga/piscsi
	$(INSTALL) -m 644 src/platforms/amiga/piscsi/piscsi.rom $(INSTALL_DIR)/src/platforms/amiga/piscsi/piscsi.rom
	$(INSTALL) -d $(INSTALL_DIR)/a314
	cp -a src/a314/files_pi/. $(INSTALL_DIR)/a314/
	cp -a data $(INSTALL_DIR)/
#	$(INSTALL) -d $(INSTALL_DIR)/data/a314-shared
#	@if [ -d $(INSTALL_DIR)/data/a314-shared ] && [ "$$(ls -A $(INSTALL_DIR)/data/a314-shared 2>/dev/null)" ]; then \
#		echo "Warning: $(INSTALL_DIR)/data/a314-shared is not empty; Python code must not be installed there."; \
#	fi
	$(INSTALL) -d $(INSTALL_DIR)/rtg
	$(INSTALL) -m 644 src/platforms/amiga/pirtg64/shaders/*.shader $(INSTALL_DIR)/rtg/
	[ -f pistorm.LICENSE ] && $(INSTALL) -m 644 pistorm.LICENSE $(INSTALL_DIR)/
	if [ -f $(UDEV_RULES) ]; then \
		$(INSTALL) -d /etc/udev/rules.d; \
		$(INSTALL) -m 644 $(UDEV_RULES) /etc/udev/rules.d/99-pistorm.rules; \
		udevadm control --reload >/dev/null 2>&1 || true; \
		udevadm trigger --subsystem-match=misc --attr-match=dev=10:262 >/dev/null 2>&1 || true; \
	fi
	if [ -f $(LIMITS_CONF) ]; then \
		$(INSTALL) -d /etc/security/limits.d; \
		$(INSTALL) -m 644 $(LIMITS_CONF) /etc/security/limits.d/pistorm-rt.conf; \
	fi
uninstall:
	rm -rf $(INSTALL_DIR)

kernel_module:
	@echo "kernel_module target is retired; skipping build."

kernel_module_pistorm:
	@echo "kernel_module_pistorm target is retired; skipping build."

kernel_module_z3bus:
	@echo "kernel_module_z3bus target is retired; skipping build."

kernel_install:
	@echo "kernel_install target is retired; skipping install."

kernel_install_build:
	@echo "kernel_install_build target is retired; skipping install."

kernel_install_pistorm:
	@echo "kernel_install_pistorm target is retired; skipping install."

kernel_install_z3bus:
	@echo "kernel_install_z3bus target is retired; skipping install."

kernel_clean:
	@echo "kernel_clean target is retired; skipping clean."

amiga-net:
	$(AMIGA_SUBMAKE) -C src/platforms/amiga/net/net_driver_amiga

amiga-piscsi:
	$(AMIGA_SUBMAKE) -C src/platforms/amiga/piscsi/device_driver_amiga

amiga-rtg:
	$(AMIGA_SUBMAKE) -C src/platforms/amiga/pirtg64/Amiga/rtg_driver_amiga

amiga-ahi:
	$(AMIGA_SUBMAKE) -C src/platforms/amiga/ahi/ahi_driver_amiga

amiga-pissa:
	$(AMIGA_SUBMAKE) -C amiga/pissa

amiga-pissl:
	$(AMIGA_SUBMAKE) -C amiga/pissl

amiga-all: amiga-net amiga-piscsi amiga-rtg amiga-pissa amiga-pissl

amiga-clean:
	$(AMIGA_SUBMAKE) -C src/platforms/amiga/net/net_driver_amiga clean
	$(AMIGA_SUBMAKE) -C src/platforms/amiga/piscsi/device_driver_amiga clean
	$(AMIGA_SUBMAKE) -C src/platforms/amiga/pirtg64/Amiga/rtg_driver_amiga clean
	$(AMIGA_SUBMAKE) -C src/platforms/amiga/ahi/ahi_driver_amiga clean
	$(AMIGA_SUBMAKE) -C amiga/pissa clean
	$(AMIGA_SUBMAKE) -C amiga/pissl clean

full:
	@if [ "$$(id -u)" -eq 0 ]; then \
		echo "ERROR: run 'make full' as a normal user (it calls sudo internally)."; \
		exit 1; \
	fi
	-pkill -x emulator 2>/dev/null || true
	$(MAKE) clean
	$(MAKE) PISTORM_KMOD=$(PISTORM_KMOD)
	sudo $(MAKE) PISTORM_KMOD=$(PISTORM_KMOD) install
	# Copy boot configuration files
	#sudo cp -f boot/firmware/config.txt /boot/firmware/config.txt
	#sudo cp -f boot/firmware/cmdline.txt /boot/firmware/cmdline.txt
	# Copy system configuration files
	#sudo cp -f 10-hugepages.conf /etc/sysctl.d/10-hugepages.conf
	sudo cp -f etc/security/limits.d/pistorm-rt.conf /etc/security/limits.d/pistorm-rt.conf
	sudo cp -f etc/udev/99-pistorm.rules /etc/udev/rules.d/99-pistorm.rules
	sudo cp -f etc/systemd/system/pistorm64.service /etc/systemd/system/pistorm64.service
	# Reload systemd configurations
	sudo systemctl daemon-reload
	sudo udevadm control --reload-rules && sudo udevadm trigger
	# Apply sysctl settings (continue even if hugepages not supported)
	sudo sysctl -p /etc/sysctl.d/10-hugepages.conf || echo "Note: Some hugepage settings may not be supported on this system"
	# Enable and start the emulator service
	sudo systemctl enable pistorm64.service

# -------------------------
# PGO / profiling workflow

PROFILE_RUN  ?= ./$(TARGET)
PROFILE_ARGS ?=

profile:
	@mkdir -p $(PGO_DIR)
	$(MAKE) -f Makefile.profile clean
	$(MAKE) -f Makefile.profile PGO_MODE=gen

runprofile: profile
	@mkdir -p $(PGO_DIR)
	@echo "[PGO] Running $(PROFILE_RUN) $(PROFILE_ARGS)"
	@if [ "$(findstring clang,$(CC))" != "" ]; then \
		LLVM_PROFILE_FILE="$(PGO_DIR)/pgo_%p.profraw" $(PROFILE_RUN) $(PROFILE_ARGS); \
	else \
		$(PROFILE_RUN) $(PROFILE_ARGS); \
	fi

buildprofile:
	@mkdir -p $(PGO_DIR)
	@if [ "$(findstring clang,$(CC))" != "" ]; then \
		command -v llvm-profdata >/dev/null 2>&1 || { echo "ERROR: llvm-profdata missing (needed for clang PGO)."; exit 1; }; \
		ls -1 $(PGO_DIR)/*.profraw >/dev/null 2>&1 || { echo "ERROR: no .profraw files in $(PGO_DIR) (run 'make runprofile')."; exit 1; }; \
		echo "[PGO] Merging profraw -> $(PGO_DIR)/pgo.profdata"; \
		llvm-profdata merge -o $(PGO_DIR)/pgo.profdata $(PGO_DIR)/*.profraw; \
	fi
	$(MAKE) -f Makefile.profile clean
	$(MAKE) -f Makefile.profile PGO_MODE=use BUILD_TRACE=1

help:
	@printf "Available targets:\n"
	@printf "  %-32s %s\n" $(HELP_TARGETS)

-include $(.CFILES:%.c=%.d) $(MUSASHIGENCFILES:%.c=%.d) src/a314/a314.d src/musashi/$(MUSASHIGENERATOR).d pistorm_truth_test.d .d

.PHONY: all clean buptest pistorm_truth_test install uninstall \
	kernel_module kernel_module_pistorm kernel_module_z3bus \
	kernel_install kernel_install_pistorm kernel_install_z3bus kernel_clean \
	amiga-net amiga-piscsi amiga-rtg amiga-ahi amiga-all amiga-clean \
	profile runprofile buildprofile help full