mirror of
https://github.com/zeldaret/oot.git
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741c140aef
* Split files * Format rodata * Some more code rodata migrated * Some more actor rodata migrated * Migrate rodata for ovl_Boss_Ganon * Migrate rodata for code_800EC960 * Remove unused rodata * x1b occurences all lowercase b
297 lines
11 KiB
Python
297 lines
11 KiB
Python
"""
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Given a code file name (excluding the file extension, e.g. z_view) this script
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will attempt to build rodata and late_rodata sections for all of its functions.
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Supports overlays and other files as long as the rodata file is formatted
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correctly(see files in code for examples of properly formatted rodata sections)
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This supports automatically commenting or deleting the rodata file from the
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spec and automatic deletion of the rodata file itself (only use if you are sure
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it will build afterwards)
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Has trouble with rodata that goes unused, and .incbin placement
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"""
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import re
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import os
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from os import system, listdir, remove, walk
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from os.path import exists, isdir, sep
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# FUNCTIONS -----------------------------------------------------------------
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"""
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Extracts rodata symbols from asm
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"""
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def asm_syms(asm):
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split = re.split("jtbl_|D_",asm)
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return [s.partition(")")[0] for s in split[1:len(split)]]
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"""
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Extracts rodata symbols from rodata
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"""
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def rodata_syms(rodata):
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split = re.split("glabel jtbl_|glabel D_",rodata)
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return [s.partition("\n")[0] for s in split[1:len(split)]]
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"""
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Extracts the symbol from a single rodata block
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"""
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def rodata_sym(rodata_block):
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return (re.split("glabel jtbl_|glabel D_",rodata_block)[1]).split("\n")[0]
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"""
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Splits rodata into blocks
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"""
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def rodata_blocks(rodata):
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split = rodata.split("glabel")
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return ["glabel" + b for b in split[1:len(split)]]
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"""
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Gets the block size
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"""
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def rodata_block_size(rodata):
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split = rodata.split(" .")
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elements = split[1:len(split)]
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size = 0
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for e in elements:
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element_type = e.split(" ")[0]
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if element_type == "double":
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size += 8
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if element_type == "float":
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size += 4
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if element_type == "word":
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size += 4
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if element_type == "incbin":
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size += int(e.rpartition(", ")[2].split("\n")[0],16)
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if element_type == "ascii":
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size += len(e.split("\"")[1].split("\"")[0])
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if element_type == "asciz":
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size += len(e.split("\"")[1].split("\"")[0])
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if element_type == "balign":
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size += size % int(e.split(" ")[1])
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return size
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"""
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Gets the text size
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"""
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def text_size(asm):
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instructions = [l for l in asm.split("\n") if l.startswith("/* ")]
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return 4*(len(instructions)-1)
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"""
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Gets the rodata-to-text ratio
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"""
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def late_rodata_ratio(asm,late_rodata_blocks):
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total_rodata_size = 0
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for b in late_rodata_blocks:
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total_rodata_size += rodata_block_size(b)
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return total_rodata_size/text_size(asm)
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"""
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Accepts a single block of rodata and extracts the type
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"""
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def rodata_type(rodata_block):
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first_split = re.split("\s+\.", rodata_block)
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return first_split[1].split(" ")[0]
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"""
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Checks if a block should go in .rdata or .late_rodata
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"""
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def is_rodata(r):
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return (rodata_type(r)=="asciz" or rodata_type=="ascii")
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"""
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For given asm and rodata files, build a rodata section for the asm file
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"""
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def build_rodata(asm, rodata):
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contained_syms = [s for s in asm_syms(asm) if s in rodata_syms(rodata)]
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contained_blocks = [b for b in rodata_blocks(rodata) if rodata_sym(b) in contained_syms]
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# TODO include arrays in rodata_list
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rodata_list = [r for r in contained_blocks if is_rodata(r)]
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return_str = ""
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if (len(rodata_list)!=0):
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return_str += ".rdata\n"
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for r in rodata_list:
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return_str += r
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late_rodata_list = [r for r in contained_blocks if r not in rodata_list]
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if (len(late_rodata_list)!=0):
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if late_rodata_ratio(asm,late_rodata_list) > (1/3):
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top_sym = rodata_sym(late_rodata_list[0])
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if top_sym.endswith("0") or top_sym.endswith("8"):
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return_str += ".late_rodata\n.late_rodata_alignment 8\n"
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elif top_sym.endswith("4") or top_sym.endswith("C"):
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return_str += ".late_rodata\n.late_rodata_alignment 4\n"
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else:
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return_str += ".late_rodata\n"
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for r in late_rodata_list:
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return_str += r
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return None if return_str=="" else return_str + ("" if return_str.endswith("\n\n") else "\n") + ".text\n"
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"""
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Gets all file paths contained in a given folder, does not enter subfolders
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"""
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def get_file_paths(folder_path):
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return next(walk(folder_path),(None,None,[]))[2]
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"""
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Given a path, reads the asm .s file into a single string
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"""
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def file_read(path):
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with open(path, 'r', encoding="utf-8") as infile:
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return infile.read()
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"""
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Writes the rodata section to the start of the file specified by path
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"""
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def rodata_write(path, section):
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with open(path, 'r+', encoding="utf-8", newline="\n") as outfile:
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original = outfile.read()
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outfile.seek(0,0)
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outfile.write(str(section) + original)
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"""
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Comments out the line in spec associated with the given filenames
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"""
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def modify_spec(filenames, identifier, delete):
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lines = ""
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with open("spec", 'r+', encoding="utf-8", newline="\n") as spec:
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lines = spec.read().split("\n")
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changed = False
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files = filenames.split(",")
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for filename in files:
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eff_filename = filename.lower().replace("effect_", "eff_")
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if identifier == "code" and " include \"build/data/" + filename + ".rodata.o\"" in lines:
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e = lines.index(" include \"build/data/" + filename + ".rodata.o\"")
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if delete:
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del lines[e]
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else:
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lines[e] = " //include \"build/data/" + filename + ".rodata.o\""
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changed = True
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elif " include \"build/data/overlays/" + identifier + "/z_" + eff_filename + ".rodata.o\"" in lines:
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e = lines.index(" include \"build/data/overlays/" + identifier + "/z_" + eff_filename + ".rodata.o\"")
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if delete:
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del lines[e]
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else:
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lines[e] = " //include \"build/data/overlays/" + identifier + "/z_" + eff_filename + ".rodata.o\""
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changed = True
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if changed:
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modified = "\n".join(lines)
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with open("spec", 'w', encoding="utf-8", newline="\n") as spec:
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#spec.seek(0,0)
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spec.write(modified)
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"""
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Processes each individual file
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asm\non_matchings\overlays\<identifier>
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data\overlays\<identifier>
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asm\non_matchings\code\
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data\code\
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"""
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def process_file(filename, identifier, delete_rodata):
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folder_path = "asm" + sep + "non_matchings" + sep + ("code" + sep if identifier=="code" else "overlays" + sep + identifier.lower() + sep + "ovl_") + filename + sep
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rodata_path = "data" + sep + (sep if identifier=="code" else "overlays" + sep + identifier.lower() + sep + "z_") + filename.lower() + ".rodata.s"
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if filename == "player":
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folder_path = "asm" + sep + "non_matchings" + sep + "overlays" + sep + "actors" + sep + "ovl_player_actor" + sep
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rodata_path = rodata_path.replace("effect_", "eff_")
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print("ASM at: " + folder_path)
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print("Data at: " + rodata_path)
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if not exists(folder_path):
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print("Aborting: ASM does not exist")
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return
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if not exists(rodata_path):
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print("Aborting: Data does not exist")
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return
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files = [folder_path + f for f in get_file_paths(folder_path)]
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for asm_file in files:
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asm = file_read(asm_file)
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print("Found asm file " + asm_file)
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if ".rdata" in asm:
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print("Skipping: it already has a rodata section")
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continue
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print("Processing asm file " + asm_file)
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section = build_rodata(asm, file_read(rodata_path))
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if section is not None:
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print("Writing asm file " + asm_file)
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rodata_write(asm_file, section)
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else: print("Skipping: no rodata to write")
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print("Built rodata sections for " + identifier + " file " + filename)
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if delete_rodata:
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remove(rodata_path)
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print("Deleted rodata at " + rodata_path)
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"""
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Allows files to be provided as comma-separated filenames for batch migration
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"""
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def process_files(filenames, identifier, spechandle, delete_rodata):
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if "," in filenames:
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files = filenames.split(",")
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for f in files:
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process_file(f, identifier, delete_rodata)
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else:
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process_file(filenames, identifier, delete_rodata)
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if spechandle.lower() == "delete":
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modify_spec(filenames, identifier, True)
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print("Deleted rodata for files in spec")
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elif spechandle.lower() == "comment":
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result = modify_spec(filenames, identifier, False)
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if result:
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print("Commented out rodata for files in spec")
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"""
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Asks what to do about spec and rodata, converts 'all' to comma-separated filenames
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"""
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def check_spec_rodata(filenames, identifier):
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spechandle = input("Delete, Comment or Leave spec? ")
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delete_rodata = input("Delete rodata file(s)? (Y/N) ")
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if filenames == "all" or "all|" in filenames:
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to_remove_list = []
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if "all|" in filenames:
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print("all| in filenames")
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to_remove_list = filenames.split("|")[1]
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basedir = "asm" + sep + "non_matchings" + sep + ("code" if identifier=="code" else "overlays" + sep + identifier.lower()) + sep
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folder_names = [name.replace("ovl_","") for name in listdir(basedir) if isdir(basedir + name) and name not in to_remove_list]
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filenames = ",".join(map(str, folder_names))
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print(filenames)
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process_files(filenames, identifier, spechandle, delete_rodata == "Y")
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"""
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Main execution
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"""
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def run(show_help):
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if(show_help):
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print("""Usage: Enter 'Code' or 'Overlay' and follow the instructions.
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Batch migrate files by entering comma-separated filenames instead of a single filename.
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Migrate all files by entering 'all' for filenames. Exclude files from all with all| followed by comma-separated filenames Use at your own risk.
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Enter 'q' to the code or overlay question to quit.""")
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code_or_overlay = input("Code or Overlay? ")
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if(code_or_overlay == "q"):
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return
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if(code_or_overlay == "Code"):
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filename = input("Enter the code file name(s) (excluding .c) or all: ")
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check_spec_rodata(filename, "code")
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elif(code_or_overlay == "Overlay"):
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overlay_type = input("Actor, Effect or Gamestate? ")
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if(overlay_type == "Actor"):
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filename = input("Enter the actor name(s) (excluding ovl_ or z_, ex. obj_bombiwa) or all: ")
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check_spec_rodata(filename, "actors")
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elif(overlay_type == "Effect"):
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filename = input("Enter the effect name(s) (excluding ovl_ or z_, ex. effect_ss_bomb) or all: ")
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check_spec_rodata(filename, "effects")
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elif(overlay_type == "Gamestate"):
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filename = input("Enter the gamestate name(s) (excluding ovl_ or z_, ex. kaleido_scope) or all: ")
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check_spec_rodata(filename, "gamestates")
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run(True)
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# PROGRAM -------------------------------------------------------------------
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run(False)
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#bigs = ["Boss_Ganon", "Boss_Ganondrof","En_Wf", "Door_Warp1",]
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#ovls = ["En_Elf"]
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#effects = [x[0] for x in os.walk("src/overlays/effects")][1:]
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#for i, ovl in enumerate(effects):
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# process_files(ovl.split("/")[-1][4:], "effects", "Delete", True)
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# command = "echo >> src/overlays/effects/ovl_" + effects[i] + "/z_" + effects[i].lower() + ".c"
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# os.system(command) # purpose of this is to "modify" each C file in order to prevent undefined symbol errors.
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# # the new line will be removed by format.sh
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