Add elfdump tool for disassembly of ELF object file .text sections

.gitignore

@@ -18,3 +18,19 @@
 
 # Executables
 *.exe
+*.out
+/sm64compress
+/n64cksum
+/mipsdisasm
+/sm64extend
+/f3d
+/f3d2obj
+/sm64geo
+/n64graphics
+/mio0
+/n64split
+/sm64walk
+/elfdump
+
+# Makefile dependencies
+*.d

Makefile

@@ -12,6 +12,7 @@ GRAPHICS_TARGET := n64graphics
 MIO0_TARGET     := mio0
 SPLIT_TARGET    := n64split
 WALK_TARGET     := sm64walk
+ELFDUMP_TARGET  := elfdump
 
 LIB_SRC_FILES  := libmio0.c    \
                   libsm64.c    \
@@ -25,6 +26,10 @@ COMPRESS_SRC_FILES := sm64compress.c
 DISASM_SRC_FILES := mipsdisasm.c \
                     utils.c
 
+ELFDUMP_SRC_FILES := mipsdisasm.c \
+                     utils.c      \
+                     elfdump.c
+
 EXTEND_SRC_FILES := sm64extend.c
 
 F3D_SRC_FILES := f3d.c \
@@ -92,7 +97,7 @@ default: all
 
 all: $(EXTEND_TARGET) $(COMPRESS_TARGET) $(MIO0_TARGET) $(CKSUM_TARGET) \
      $(SPLIT_TARGET) $(F3D_TARGET) $(F3D2OBJ_TARGET) $(GRAPHICS_TARGET) \
-     $(DISASM_TARGET) $(GEO_TARGET) $(WALK_TARGET)
+     $(DISASM_TARGET) $(GEO_TARGET) $(WALK_TARGET) $(ELFDUMP_TARGET)
 
 $(OBJ_DIR)/%.o: %.c
 	@[ -d $(OBJ_DIR) ] || mkdir -p $(OBJ_DIR)
@@ -135,6 +140,9 @@ $(SPLIT_TARGET): $(SPLIT_OBJ_FILES)
 $(WALK_TARGET): sm64walk.c $(SM64_LIB)
 	$(CC) $(CFLAGS) -o $@ $^
 
+$(ELFDUMP_TARGET): $(ELFDUMP_SRC_FILES)
+	$(CC) $(CFLAGS) $^ $(LDFLAGS) -o $@ -lcapstone
+
 rawmips: rawmips.c utils.c
 	$(CC) $(CFLAGS) -o $@ $^ -lcapstone
 
@@ -151,6 +159,7 @@ clean:
 	rm -f $(GRAPHICS_TARGET) $(GRAPHICS_TARGET).exe
 	rm -f $(SPLIT_TARGET) $(SPLIT_TARGET).exe
 	rm -f $(WALK_TARGET) $(WALK_TARGET).exe
+	rm -f $(ELFDUMP_TARGET) $(ELFDUMP_TARGET).exe
 	-@[ -d $(OBJ_DIR) ] && rmdir --ignore-fail-on-non-empty $(OBJ_DIR)
 
 .PHONY: all clean default

README.md

@@ -100,6 +100,7 @@ There are many other smaller tools included to help with SM64 hacking.  They are
  - n64cksum: standalone N64 checksum generator.  can either do in place or output to a new file
  - n64graphics: converts graphics data from PNG files into RGBA or IA N64 graphics data
  - mipsdisasm: standalone recursive MIPS disassembler
+ - elfdump: disassembler for MIPS ELF object files
  - sm64geo: standalone SM64 geometry layout decoder
 
 ## License

elf.h

@@ -0,0 +1,61 @@
+#include <stdint.h>
+
+#define EI_DATA      5
+#define EI_NIDENT    16
+#define SHT_SYMTAB   2
+#define SHT_REL      9
+#define STN_UNDEF    0
+
+#define ELF32_R_SYM(info)  ((info) >> 8)
+#define ELF32_R_TYPE(info) ((info) & 0xff)
+
+#define R_MIPS_26    4
+#define R_MIPS_HI16  5
+#define R_MIPS_LO16  6
+
+typedef uint32_t Elf32_Addr;
+typedef uint32_t Elf32_Off;
+
+typedef struct {
+   uint8_t    e_ident[EI_NIDENT];
+   uint16_t   e_type;
+   uint16_t   e_machine;
+   uint32_t   e_version;
+   Elf32_Addr e_entry;
+   Elf32_Off  e_phoff;
+   Elf32_Off  e_shoff;
+   uint32_t   e_flags;
+   uint16_t   e_ehsize;
+   uint16_t   e_phentsize;
+   uint16_t   e_phnum;
+   uint16_t   e_shentsize;
+   uint16_t   e_shnum;
+   uint16_t   e_shstrndx;
+} Elf32_Ehdr;
+
+typedef struct {
+   uint32_t   sh_name;
+   uint32_t   sh_type;
+   uint32_t   sh_flags;
+   Elf32_Addr sh_addr;
+   Elf32_Off  sh_offset;
+   uint32_t   sh_size;
+   uint32_t   sh_link;
+   uint32_t   sh_info;
+   uint32_t   sh_addralign;
+   uint32_t   sh_entsize;
+} Elf32_Shdr;
+
+typedef struct {
+   uint32_t   st_name;
+   Elf32_Addr st_value;
+   uint32_t   st_size;
+   uint8_t    st_info;
+   uint8_t    st_other;
+   uint16_t   st_shndx;
+} Elf32_Sym;
+
+typedef struct {
+   Elf32_Addr r_offset;
+   uint32_t   r_info;
+} Elf32_Rel;