Merge pull request #36 from spicyjpeg/dynlink

Dynamic linker, gp-relative addressing, ldscripts and more

3 files changed, 82 insertions, 25 deletions

diff --git a/examples/system/childexec/child.c b/examples/system/childexec/child/child.c
index 2ddfa73..2ddfa73 100644
--- a/examples/system/childexec/child.c
+++ b/examples/system/childexec/child/child.c
diff --git a/examples/system/childexec/child_exe.s b/examples/system/childexec/child_exe.s
index 842ac88..66bd0e2 100644
--- a/examples/system/childexec/child_exe.s
+++ b/examples/system/childexec/child_exe.s
@@ -3,4 +3,4 @@
 .global child_exe			# Insert spoopypasta
 .type child_exe, @object
 child_exe:
-	.incbin "child.exe"
\ No newline at end of file
+	.incbin "build/child/child.exe"
\ No newline at end of file
diff --git a/examples/system/childexec/makefile b/examples/system/childexec/makefile
index 30229ae..e801739 100644
--- a/examples/system/childexec/makefile
+++ b/examples/system/childexec/makefile
@@ -1,36 +1,93 @@
-include ../../examples-setup.mk
+# PSn00bSDK makefile template
+# Part of the PSn00bSDK Project
+# 2019 - 2021 Lameguy64 / Meido-Tek Productions
 
-INCLUDE	 	+= 
-LIBDIRS		+= 
+## Settings
 
-LIBS		= -lpsxgpu -lpsxgte -lpsxspu -lpsxetc -lpsxapi -lc
+PSN00BSDK_LIBS	?= ../../../libpsn00b
 
-CFLAGS		= -g -O2 -fno-builtin -fdata-sections -ffunction-sections
-CPPFLAGS	= $(CFLAGS) -fno-exceptions
-AFLAGS		= -g -msoft-float
-LDFLAGS		= -g -gc-sections \
-				-T $(GCC_BASE)/$(PREFIX)/lib/ldscripts/elf32elmip.x
+# Edit this to point to psn00bsdk-setup.mk, or copy that over to your project's
+# root folder (it only depends on environment variables).
+include ../../../psn00bsdk-setup.mk
 
-LDFLAGS_P	= $(LDFLAGS) -Ttext=0x80010000
-LDFLAGS_C	= $(LDFLAGS) -Ttext=0x80030000
+# Project target name
+#TARGET	= childexec
 
-all: child parent
+## Files
 
-child: build/child.o
-	$(LD) $(LDFLAGS_C) $(LIBDIRS) build/child.o $(LIBS) -o child.elf
-	elf2x -q child.elf
+# Searches for C, C++ and S (assembler) files in local directory
+CFILES_PARENT	= $(notdir $(wildcard *.c))
+CPPFILES_PARENT	= $(notdir $(wildcard *.cpp))
+AFILES_PARENT	= $(notdir $(wildcard *.s))
+
+CFILES_CHILD	= $(notdir $(wildcard child/*.c))
+CPPFILES_CHILD	= $(notdir $(wildcard child/*.cpp))
+AFILES_CHILD	= $(notdir $(wildcard child/*.s))
+
+# Create names for object files
+OFILES_PARENT	= $(addprefix build/,$(CFILES_PARENT:.c=.o)) \
+	$(addprefix build/,$(CPPFILES_PARENT:.cpp=.o)) \
+	$(addprefix build/,$(AFILES_PARENT:.s=.o))
+OFILES_CHILD	= $(addprefix build/child/,$(CFILES_CHILD:.c=.o)) \
+	$(addprefix build/child/,$(CPPFILES_CHILD:.cpp=.o)) \
+	$(addprefix build/child/,$(AFILES_CHILD:.s=.o))
+
+# Project specific includes and libraries
+# (use -I for include dirs, -L for library dirs, -l for static libraries)
+INCLUDE	+=
+LIBDIRS	+=
+LIBS	+=
+
+# Relocate the child executable to 0x30000
+LDFLAGS_CHILD	= -Ttext=0x80030000
+
+## Build rules
+
+#all: iso
+all: build/child/child build/parent
+
+iso: build/child/child build/parent resources
+	$(MKPSXISO) -y -q iso.xml
+
+resources:
+	# Add commands to build/convert your assets here
+	#$(LZPACK) data.xml
+
+build/child/child: $(OFILES_CHILD)
+	@mkdir -p $(dir $@)
+	$(LD) $(LDFLAGS_EXE) $(LDFLAGS_CHILD) $(LIBDIRS) $^ $(LIBS) -o $@
+	$(NM) -f posix -l -n $@ >$@.map
+	$(ELF2X) -q $@ $@.exe
+
+build/parent: $(OFILES_PARENT)
+	@mkdir -p $(dir $@)
+	$(LD) $(LDFLAGS_EXE) $(LIBDIRS) $^ $(LIBS) -o $@
+	$(NM) -f posix -l -n $@ >$@.map
+	$(ELF2X) -q $@ $@.exe
+
+build/child/%.o: child/%.c
+	@mkdir -p $(dir $@)
+	$(CC) $(CFLAGS_EXE) $(INCLUDE) -c $< -o $@
+
+build/child/%.o: child/%.cpp
+	@mkdir -p $(dir $@)
+	$(CXX) $(CPPFLAGS_EXE) $(INCLUDE) -c $< -o $@
+
+build/child/%.o: child/%.s
+	@mkdir -p $(dir $@)
+	$(CC) $(AFLAGS_EXE) $(INCLUDE) -c $< -o $@
 
-parent: build/parent.o build/child_exe.o
-	$(LD) $(LDFLAGS_P) $(LIBDIRS) build/parent.o build/child_exe.o $(LIBS) -o parent.elf
-	elf2x -q parent.elf
-	
 build/%.o: %.c
 	@mkdir -p $(dir $@)
-	$(CC) $(CFLAGS) $(INCLUDE) -c $< -o $@
-	
+	$(CC) $(CFLAGS_EXE) $(INCLUDE) -c $< -o $@
+
+build/%.o: %.cpp
+	@mkdir -p $(dir $@)
+	$(CXX) $(CPPFLAGS_EXE) $(INCLUDE) -c $< -o $@
+
 build/%.o: %.s
 	@mkdir -p $(dir $@)
-	$(CC) $(AFLAGS) $(INCLUDE) -c $< -o $@
-	
+	$(CC) $(AFLAGS_EXE) $(INCLUDE) -c $< -o $@
+
 clean:
-	rm -rf build parent.elf parent.exe child.elf child.exe
+	rm -rf build