mirror of
https://github.com/aap/librw.git
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build the ps2 platform entirely with freesce: --freesce premake option
premake5 gmake --freesce retargets the one ps2 platform at freesce (its own ee-gcc 2.9 + newlib; FREESCE/FREESCE_GCC roots, defaulting to /usr/local/freesce) -- a premake-time choice since the 2.9 and 3.2 C++ ABIs don't link. The tools/freesce wrappers strip premake's gcc-3-style dep flags. demoreel_cd_freesce.elf now links with zero SCE inputs: freesce crt chain, newlib libc/libm, and ctorgen to register the PluginList ctors gcc 2.9 leaves orphaned. Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
This commit is contained in:
aap
+124
-21
@@ -1,51 +1,133 @@
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# PS2 build (SCE toolchain). PC builds are generated by premake.
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# Build librw for ps2 first: premake5 gmake; make -C build librw config=debug_ps2
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# PS2 build, two flavors:
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# - demoreel.elf / demoreel_cd.elf: the real SCE SDK toolchain and
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# libraries at /usr/local/sce end to end (i386 execution works on
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# this machine; see librwps2/Makefile for the pattern).
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# Build librw for it first (with the SCE gcc on PATH so premake's
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# ee-g++ resolves to 3.2, matching the C++ ABI of these objects):
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# premake5 gmake
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# PATH=/usr/local/sce/ee/gcc/bin:$PATH \
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# make -C build librw config=debug_ps2 PS2SDK=/usr/local/sce
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# - demoreel_cd_freesce.elf: complete freesce build, no SCE anywhere;
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# see the FREESCE_ section below.
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CC=ee-gcc
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CXX=ee-g++
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CC := /usr/local/sce/ee/gcc/bin/ee-gcc
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CXX := /usr/local/sce/ee/gcc/bin/ee-g++
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TARGET=demoreel
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LIBRW := ../..
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OBJDIR := obj/ps2
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SRC := main.cpp proctex.cpp scene_tunnel.cpp scene_particles.cpp scene_knot.cpp
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SKELSRC := skeleton.cpp ps2.cpp
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SKELSRC := skeleton.cpp camera.cpp ps2.cpp
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SCELIBDIR := /usr/local/sce/ee/lib
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GCCLIB := /usr/local/sce/ee/gcc/lib/gcc-lib/ee/3.2-ee-040921
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CFLAGS := -Os -DRW_PS2 -fno-common -fno-exceptions
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LIBS = $(LIBRW)/lib/ps2/Debug/librw.a \
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$(SCELIBDIR)/libgraph.a \
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$(SCELIBDIR)/libdma.a \
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$(SCELIBDIR)/libmc.a \
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$(SCELIBDIR)/libpc.a \
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$(SCELIBDIR)/libpad.a \
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$(SCELIBDIR)/libcdvd.a \
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$(SCELIBDIR)/libscf.a
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$(SCELIBDIR)/libkernl.a
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GCCLIB := /usr/local/sce/ee/gcc/lib/gcc-lib/ee/3.2-ee-030926
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CRT_BEGIN := $(OBJDIR)/crt0.o $(GCCLIB)/crti.o $(GCCLIB)/crtbegin.o
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CRT_BEGIN := crt0.o $(GCCLIB)/crti.o $(GCCLIB)/crtbegin.o
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CRT_END := $(GCCLIB)/crtend.o $(GCCLIB)/crtn.o
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OBJ := $(addprefix $(OBJDIR)/,$(SRC:.cpp=.o) $(SKELSRC:.cpp=.o))
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DEP := $(OBJ:.o=.d)
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INC := -I. \
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-I$(LIBRW) \
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-I$(LIBRW)/skeleton \
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-I/usr/local/sce/common/include \
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-I/usr/local/sce/ee/include
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-I/usr/local/sce/ee/include \
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-I/usr/local/sce/common/include
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$(TARGET).elf: $(OBJDIR)/crt0.o $(OBJ)
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# Two ELFs: demoreel.elf runs off the host filesystem (host: for pcsx2,
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# host0: for the SCE TOOL) for quick iteration. demoreel_cd.elf reboots
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# the IOP from cdrom0:\MODULES\IOPRP300.IMG like a real disc boot (see
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# SKEL_CDROM in skeleton/ps2.cpp) - only CDROM builds have been known to
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# run correctly, so that's the one to test on hardware/dsedb.
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all: $(TARGET).elf $(TARGET)_cd.elf
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OBJDIR := obj/ps2/host
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OBJ := $(addprefix $(OBJDIR)/,$(SRC:.cpp=.o) $(SKELSRC:.cpp=.o))
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DEP := $(OBJ:.o=.d)
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OBJDIR_CD := obj/ps2/cd
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OBJ_CD := $(addprefix $(OBJDIR_CD)/,$(SRC:.cpp=.o) $(SKELSRC:.cpp=.o))
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DEP_CD := $(OBJ_CD:.o=.d)
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$(TARGET).elf: $(OBJ) crt0.o
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$(CXX) -o $@ $(CRT_BEGIN) $(OBJ) $(LIBS) $(CRT_END) -T $(SCELIBDIR)/app.cmd -L$(SCELIBDIR) -lm -nostartfiles -Wl,--gc-sections
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$(TARGET)_cd.elf: $(OBJ_CD) crt0.o
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$(CXX) -o $@ $(CRT_BEGIN) $(OBJ_CD) $(LIBS) $(CRT_END) -T $(SCELIBDIR)/app.cmd -L$(SCELIBDIR) -lm -nostartfiles -Wl,--gc-sections
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# CD build against freesce -- a COMPLETE freesce build: freesce's own
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# ee-gcc 2.9 toolchain, freesce headers only, freesce's six libraries,
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# crt0/crti/crtbegin/crtend/crtn and app.cmd. libc/libm are the
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# toolchain's newlib, libgcc its own; there is no libstdc++ (2.9's
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# C++ runtime bits live in libgcc). app.cmd deliberately has no
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# GROUP(-lc ...) directive, so the runtime libs go inside an explicit
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# link group. Nothing comes from /usr/local/sce.
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#
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# Two roots, because they are two different axes (the xtc convention):
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# FREESCE is the SDK vintage -- headers, libraries, crt, app.cmd -- a
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# tree root with ee/include and ee/lib under it, which is how an
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# install and a git worktree are both laid out. FREESCE_GCC is the
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# compiler root; the compiler is not SDK-versioned, so it deliberately
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# does not derive from FREESCE (a source worktree has no compiler).
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#
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# make demoreel_cd_freesce.elf
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# make demoreel_cd_freesce.elf FREESCE=~/src/freesce_24 # from a worktree
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#
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# librw.a for this flavor -- the SCE-vs-freesce choice is made at
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# premake time, because the 2.9 and 3.2 C++ ABIs don't link, so one
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# generated tree builds one flavor:
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# premake5 gmake --freesce; make -C build librw config=debug_ps2
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# (a librw.a generated without --freesce is 3.2-ABI and won't link
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# here; regenerate and rebuild)
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FREESCE ?= /usr/local/freesce
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FREESCE_GCC ?= /usr/local/freesce/ee/gcc
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FREESCE_LIB := $(FREESCE)/ee/lib
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# ctorgen: gcc 2.9 on the EE emits file-scope ctors as _GLOBAL_$I
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# functions but registers none of them; this collects them into .ctors
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# entries. Without it librw's global ctors (the PluginList statics)
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# silently never run. ee/bin/ctorgen in an install, tools/ctorgen.sh
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# in a worktree.
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FREESCE_CTORGEN ?= $(firstword $(wildcard $(FREESCE)/ee/bin/ctorgen $(FREESCE)/tools/ctorgen.sh))
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FREESCE_CXX := $(FREESCE_GCC)/bin/ee-g++
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FREESCE_NM := $(FREESCE_GCC)/bin/ee-nm
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FREESCE_CFLAGS := -Os -mno-abicalls -G0 -DRW_PS2 -fno-common -fno-exceptions
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FREESCE_INC := -I. -I$(LIBRW) -I$(LIBRW)/skeleton -I$(FREESCE)/ee/include
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FREESCE_LIBRW := $(LIBRW)/lib/ps2/Debug/librw.a
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OBJDIR_CDF := obj/ps2/cdf
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OBJ_CDF := $(addprefix $(OBJDIR_CDF)/,$(SRC:.cpp=.o) $(SKELSRC:.cpp=.o))
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FREESCE_LIBS = $(FREESCE_LIB)/libgraph.a $(FREESCE_LIB)/libdma.a $(FREESCE_LIB)/libpc.a \
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$(FREESCE_LIB)/libpad.a $(FREESCE_LIB)/libcdvd.a $(FREESCE_LIB)/libkernl.a
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$(OBJDIR_CDF)/ctorreg.s: $(OBJ_CDF) $(FREESCE_LIBRW)
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NM=$(FREESCE_NM) $(FREESCE_CTORGEN) $(OBJ_CDF) $(FREESCE_LIBRW) > $@
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$(OBJDIR_CDF)/ctorreg.o: $(OBJDIR_CDF)/ctorreg.s
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$(FREESCE_CXX) -c $< -o $@
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# -nostdlib, not -nostartfiles: everything is listed explicitly, and
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# the g++ driver must not append its usual -lstdc++ (which freesce's
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# gcc 2.9 doesn't have) nor a trailing -lgcc, whose __main.o would
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# collide with freesce's own __main in crtbegin.o.
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$(TARGET)_cd_freesce.elf: $(OBJ_CDF) $(OBJDIR_CDF)/ctorreg.o $(FREESCE_LIBRW)
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$(FREESCE_CXX) -o $@ -nostdlib \
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$(FREESCE_LIB)/crt0.o $(FREESCE_LIB)/crti.o $(FREESCE_LIB)/crtbegin.o \
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$(OBJDIR_CDF)/ctorreg.o $(OBJ_CDF) $(FREESCE_LIBRW) \
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-Wl,--start-group $(FREESCE_LIBS) -lc -lm -lgcc -Wl,--end-group \
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$(FREESCE_LIB)/crtend.o $(FREESCE_LIB)/crtn.o \
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-T $(FREESCE_LIB)/app.cmd -L$(FREESCE_LIB)
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run: $(TARGET).elf
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dsedb -r run $(TARGET).elf
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$(OBJDIR)/crt0.o:
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@mkdir -p $(@D)
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crt0.o: $(SCELIBDIR)/crt0.s
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$(CC) -c -xassembler-with-cpp -o $@ $(SCELIBDIR)/crt0.s
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$(OBJDIR)/%.o: %.cpp
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@@ -56,7 +138,28 @@ $(OBJDIR)/%.o: $(LIBRW)/skeleton/%.cpp
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@mkdir -p $(@D)
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$(CXX) $(CFLAGS) $(INC) -MMD -c $< -o $@
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clean:
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rm -rf $(OBJDIR) $(TARGET).elf
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$(OBJDIR_CD)/%.o: %.cpp
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@mkdir -p $(@D)
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$(CXX) $(CFLAGS) -DSKEL_CDROM $(INC) -MMD -c $< -o $@
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-include $(DEP)
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$(OBJDIR_CD)/%.o: $(LIBRW)/skeleton/%.cpp
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@mkdir -p $(@D)
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$(CXX) $(CFLAGS) -DSKEL_CDROM $(INC) -MMD -c $< -o $@
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# freesce-flavor CD objects: freesce compiler, freesce headers only
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# (they carry the vintage's IOP_IMAGE_FILE -- IOPRP242.IMG -- in
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# sifdev.h, exactly like SCE's headers carry theirs); libc headers are
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# the toolchain's newlib ones. No -MMD: the 2.9 driver has no -MF and
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# drops .d files in the cwd, so this flavor goes without dep tracking.
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$(OBJDIR_CDF)/%.o: %.cpp
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@mkdir -p $(@D)
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$(FREESCE_CXX) $(FREESCE_CFLAGS) -DSKEL_CDROM $(FREESCE_INC) -c $< -o $@
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$(OBJDIR_CDF)/%.o: $(LIBRW)/skeleton/%.cpp
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@mkdir -p $(@D)
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$(FREESCE_CXX) $(FREESCE_CFLAGS) -DSKEL_CDROM $(FREESCE_INC) -c $< -o $@
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clean:
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rm -rf obj/ps2 crt0.o $(TARGET).elf $(TARGET)_cd.elf $(TARGET)_cd_freesce.elf
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-include $(DEP) $(DEP_CD)
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Executable
+3
@@ -0,0 +1,3 @@
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#!/bin/sh
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# premake's gccprefix applies to ar too; just forward
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exec "${FREESCE_GCC:-/usr/local/freesce/ee/gcc}/bin/ee-ar" "$@"
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Executable
+18
@@ -0,0 +1,18 @@
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#!/bin/sh
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# ee-gcc 2.9 wrapper for the premake gmake build (--freesce): the
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# generated rules pass gcc-3-style dependency flags; the 2.9 driver
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# treats -MF's argument as a second input file and dies. Strip -MD,
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# -MP and -MF <file>, then run the real driver.
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# FREESCE_GCC is the compiler root (the xtc convention): the compiler
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# is not SDK-versioned, so it does not derive from FREESCE.
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skip=
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for a in "$@"; do
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shift
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if [ -n "$skip" ]; then skip=; continue; fi
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case "$a" in
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-MD|-MP) continue ;;
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-MF) skip=1; continue ;;
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esac
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set -- "$@" "$a"
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done
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exec "${FREESCE_GCC:-/usr/local/freesce/ee/gcc}/bin/ee-g++" "$@"
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Executable
+13
@@ -0,0 +1,13 @@
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#!/bin/sh
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# see ee-g++ in this directory
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skip=
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for a in "$@"; do
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shift
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if [ -n "$skip" ]; then skip=; continue; fi
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case "$a" in
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-MD|-MP) continue ;;
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-MF) skip=1; continue ;;
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esac
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set -- "$@" "$a"
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done
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exec "${FREESCE_GCC:-/usr/local/freesce/ee/gcc}/bin/ee-gcc" "$@"
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