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Changelog

All notable changes to this project will be documented in this file.

The format is based on Keep a Changelog, and this project adheres to Semantic Versioning.

Unreleased

1.26.0 - 2024-05-21

Added

  • Add visibility attribute to symbols.
    • Allows to specify custom visibility, like weak or local, to each symbol.
  • Read symbol binding from elf files as visibility automatically.

1.25.1 - 2024-05-03

Fixed

  • Fix an edge case where strings may not get correctly disassembled when they contain the escape character (\\).
  • Fix some overlay symbols not being properly created.

1.25.0 - 2024-04-22

Added

  • R4000 ALLEGREX instruction set compatibility
    • Used by the PlayStation Portable (PSP) CPU.
  • rabbitizer 1.10.0 or above is required.

1.24.3 - 2024-04-04

Changed

  • Instruction analysis now follow all branches during look ahead analysis.
    • Look ahead analysis consists on taking branches and trying to follow the control flow without interrumping the main function analysis.
    • Old behavior trigered the look ahead analysis on a branch, but if a second branch was found during the look ahead analysis then it was ignored and not taken. This lead to some pointers not being properly paired if the codegen emitted the %hi and %lo separated by too many branches.
    • New behavior do follows branches during look ahead analysis, improving symbol pairing but making a bit slower the time needed for the overall analysis.
  • rabbitizer 1.9.4 or above is required.
    • Should fix some issues under Windows.

1.24.2 - 2024-03-26

Added

  • GlobalConfig.SYMBOL_ALIGNMENT_REQUIRES_ALIGNED_SECTION.
    • Only emit symbol alignment directives if those are not larger than the alignment of the disassembled section.

1.24.1 - 2024-03-25

Fixed

  • Fix wrong function alignment for EEGCC compiler.

1.24.0 - 2024-03-25

Added

  • Add EEGCC compiler option.
  • Add KMC compiler option.

Changed

  • Emit .align 3 directives for strings for EEGCC compiler.
  • Emit .align 3 directives for functions for EEGCC compiler.
  • Refactor Compiler to make implementing per-compiler differences more easily.

1.23.1 - 2024-03-22

Fixed

  • Fix rodata symbols referencing symbols that it should not reference.
    • Symbols like functions with addends, branch labels (not to be confused with jumptable labels), etc.

1.23.0 - 2024-03-19

Added

  • Symbols are now quoted if they contain special characters.
    • The symbol will be quote if any of the following characters in contained on the symbol name: @, <, \\, - or +.
  • FileBase.sectionFlags: allows to specify flags for the specific section.
  • SectionBase.enableStringGuessing: Allows to toggle the string guessing at the section level.
    • This option is ignored if the global string guessing option is disabled.
  • SectionBase.typeForOwnedSymbols: Allows to specify that all the symbols from the current section should have the same type.
    • Does not override user declared types for symbols on the section.
  • SectionBase.sizeForOwnedSymbols: Allows to specify that all the symbols from the current section should have the same size.
    • Does not override user declared sizes for symbols on the section.
  • Add MWCC compiler option.

Changed

  • SectionRelocZ64 now emits "a" flag as the section flag.
  • Make sure to not reference local branch labels on data symbols.
  • Minor code cleanups

1.22.0 - 2024-03-08

Added

  • New options:
    • Add ASM_GLOBALIZE_TEXT_LABELS_REFERENCED_BY_NON_JUMPTABLE.
      • Forces the use of ASM_JTBL_LABEL on text labels that are referenced by non jumptables.
      • Turned off by default.
        • Not enabled by default since this may be a symptom of something misconfigured or fake refences, since nothing besides jumptables should be able to reference labels inside a function.
  • Add libleo (64DD) hardware registers to the list of known N64 hardware registers.

Changed

  • Change the logic for emitting the alignment directives.
    • Now the address of the symbol must be aligned relative to the file where the symbol is, instead of requiring both the symbol and the file to be aligned independently.
    • This should be specially useful for PSX projects, since the compiler aligns jumptables to 8, but it doesn't impose alignment restrictions on files, meaning the files (and those jumptables) may end up aligned to a lower alignment.
  • Avoid filtering out user declared symbols when they are outside the valid address space.

Fixed

  • Fix missing type hints

1.21.0 - 2024-02-08

Added

  • Add ContextSymbol.allowedToReferenceSymbols.
    • Allow or prohibit this symbol to reference other symbols.
  • Add ContextSymbol.allowedToBeReferenced
    • Allow or prohibit this symbol to be referenced by other symbols.
  • Add FunctionRodataEntry.getName method.
  • Add FileBase.sectionAlignment.
    • Allows to customize the alignment of the section.
  • New options:
    • --asm-prelude-use-includes / GlobalConfig.ASM_PRELUDE_USE_INCLUDES: Emits the .include directive on the asm prelude.
    • --asm-prelude-use-assembler-directives / GlobalConfig.ASM_PRELUDE_USE_INSTRUCTION_DIRECTIVES: Emits instruction assembler directives.
    • --asm-prelude-use-section-start / GlobalConfig.ASM_PRELUDE_USE_SECTION_START: Emit the start of a section and alignment directive.

Changed

  • Data symbols: Emit the original word inside the emitted comment.
  • Force SectionRelocZ64's generated symbols to always be disassembled as .words.
  • Disallow SectionRelocZ64's generated symbols to reference other symbols or to be referenced by other symbols.
  • Autogenerated symbols from SectionRelocZ64 will only use the stem of the section's filename.
  • Assembler directives that only have meaning for instructions are only emitted on .text sections.

Fixed

  • Fix default string encoding for .data section.

1.20.1 - 2024-01-28

Added

  • Perform a range check on all .data symbols that have a user declared size.
    • This checks for the size of the symbol to not be smaller than the user declared size.
    • If the size doesn't match then a warning is printed to stderr or halt execution if GlobalConfig.PANIC_RANGE_CHECK is turned on.
  • Add issue templates for bug reports and feature suggestions.
  • Add --rodata-string-encoding and --data-string-encoding CLI options.

Changed

  • Format the range check message of .bss symbols similarly to how the .data range check is formatted.

Fixed

  • Fix missing comment terminator on assembly prelude.

1.20.0 - 2023-12-25

Added

  • Add --name-vars-by-file option to rename data symbols based on their offset and in their containing file.
  • Add --name-vars-by-section considers the .text and .ovl/.reloc sections.
    • For unknown .text symbols (that are not functions, or any kind of label) the T_ prefix will be used.
    • For .ovl/.reloc symbols the REL_ prefix will be used

Changed

  • File splits can now contain reloc sections (.ovl or .reloc).
  • Type-based name generation (--name-vars-by-type) can now be mixed with other kinds of name generations, allowing to give extra information on the symbol name.
  • Autogenerated symbol names will not use a suffix if said symbol is generated after another symbol or file.
  • Do not try to symbolize an address as a symbol plus addend if the original address is a banned address.
  • Recognize volatile type variants as aliases for the non volatile versions.
    • For example, vs16 is recognized as a .short.
  • Use C style comments over # since that is more widely supperted.
    • For example Clang doesn't seem to support # comments.

1.19.0 - 2023-12-04

Added

  • Try to detect when instructions are setting the $gp register with the passed GP_VALUE and use the _gp symbol instead of symbolizing an unrelated symbol.
    • This check is only applied on non PIC mode.
  • Track if a symbol is accessed with a %gp_rel.
  • Add --sequential-label-names option to rename branch and jump table labels after their containing function (#142).
    • Thanks @cadmic

Changed

  • Emit which symbol produced the generation of an automatically generated and unused pad.
  • Change how the variables csv file is parsed: If the size column is either empty, a dash (-) or zero then that column is ignored.
  • Autogenerated symbol names are now padded up to 8 hex digits, contrary to the old 6 hex digits.
    • Since this may be a breaking change for some people the old functionallity can be restored by enabling the GlobalConfig.LEGACY_SYM_ADDR_ZERO_PADDING setting, or by passing --legacy-sym-addr-zero-padding when invoking a command line front-end.

Deprecated

  • GlobalConfig.LEGACY_SYM_ADDR_ZERO_PADDING (and the CLI version --legacy-sym-addr-zero-padding) are deprecated.
    • There's no replacement for this option.

Fixed

  • Avoid using the wrong immediate for gp-relative references if the address could not be symbolized.
    • In example, if said address is outside of the known address range.
  • Fix some niche cases where spimdisasm may emit duplicated data symbol labels but without their data.

1.18.0 - 2023-10-29

Added

  • Add option to rename the sections generated by FunctionRodataEntry
    • FunctionRodataEntry.sectionText to rename the .text section
    • FunctionRodataEntry.sectionRodata to rename the .rodata section
    • FunctionRodataEntry.sectionLateRodata to rename the .late_rodata section

1.17.4 - 2023-10-07

Added

  • Add CHANGELOG.md

Fixed

  • Fix not decoding some valid Japense strings on decodeBytesToStrings
    • Specifically SHIFT-JIS ones with raw characters 0x8C and 0x8D

1.17.3 - 2023-09-18

Changed

  • Hardcodes a check to avoid disassembling .vutext. This will be changed in a future release.
    • Fixes .vutext sections from PS2 elfs messing with symbol analyzis

Fixed

  • Fix .double disassembly for little endian

1.17.2 - 2023-09-18

Uncategorized

  • Dummy update, sorry

1.17.1 - 2023-09-15

Added

  • Option to set the filtering addresses for the symbol finder

Changed

  • Tweak endlabel to be emitted in the same place as the size directive does
  • Emit global labels for symbols with no type in the middle of functions
  • Consider the j instruction as a function end if rabbitizer's --j-branch option is turned off
  • Always migrate mips1 doubles when migrating rodata

Fixed

  • Add checks for $rs and $rt registers instead of assuming they are used to avoid crashing during runtime.

1.17.0 - 2023-08-27

Changed

  • Allow using MIPS_NONE reloc type as a way to avoid symbolizing a reference and use the raw value instead.
  • Allow using a different label for symbols in the middle of functions.
    • Useful for setting alternative entry points for handwritten functions.
    • It can be used by setting the ASM_TEXT_ALT_LABEL.

Fixed

  • Fix elfObjDisasm crashing if a reloc section references an unhandled section like .pdr.

1.16.5 - 2023-08-22

Changed

  • Do not use iQue symbols by default if user asked only for libultra symbols

1.16.4 - 2023-08-19

Added

  • Try to gather the $gp register value from non-PIP elfs too
  • Detect ABI and cpu flags from elf header.

Changed

  • Do not use mips1 double detection heuristic on non o32 abis

Fixed

  • Various bugfixes related to j instructions being used as a way to call another function.
  • Fix size directive not being properly emitted for functions with user-declared size that has dangling nops.
  • Avoid warning about LOCAL NOTYPE symbols in elf files

1.16.3 - 2023-08-15

Fixed

  • Fix hex comment crashing because of doubles when parsing little endian binaries

1.16.2 - 2023-08-14

Added

  • Generate pad symbols to honor user declared sizes
    • Symbols will be automatically splitted if the user-declared size is smaller than the symbol size (usually due to size not being a multiple of 4, file splits, other symbols not being referenced, etc)
  • Add the character 0x1A to set of special cases for string decoding.

Changed

  • Workaround for big addends when building with modern GAS

Fixed

  • Fix size directive not using the right label when symbols are smaller than a word
  • Fix size directive not being properly emitted for symbols with a size smaller than a word
  • Fix bug which produced reporting incorrect file splits on strings which their last word was a zero.

1.16.0 - 2023-07-23

Added

  • Add a detector for the redundant function end produced by IDO with some specific flag combinations.
    • It is turned off by default, but it can be turned on globally with --detect-redundant-function-end, or globally and per file via the API.

Fixed

  • Fix BSS sections not emitting a first symbol if it isn't referenced anywhere.

1.15.4 - 2023-07-14

Changed

  • Avoid taking into account invalid instructions when trying to find function boundaries.

Fixed

  • Properly honor size of user-declared symbols for elf static symbols.

1.15.3 - 2023-07-10

Changed

  • Don't append the section name if it is known when disassembling elfs
    • This special cases the sections .text, .data, .rodata and .bss.
    • Avoids the redundant filename_.text/ naming scheme

1.15.2 - 2023-07-04

Fixed

  • Fix hardcoded shift value in alignment directive

1.15.1 - 2023-07-04

Changed

  • Emit string alignment directives even when the section isn't aligned to a multiple of 8.
    • Some projects can have rodata sections aligned to just a multiple of 4, and not emitting the directive in those cases can break their builds

1.15.0 - 2023-07-03

Added

  • Implement string guesser for the data section.
    • Controlled by the API GlobalConfig.DATA_STRING_GUESSER_LEVEL or via the CLI --data-string-guesser level.
    • Decodes strings with the ASCII encoding by default.
    • The meaning of each level are the same as the rodata string guesser.
    • The level defaults to 2.
  • Add experimental Pascal string guesser.
    • Works for both rodata and data sections.
    • Follows the same level logic as the C string guesser.
    • It is disabled by default.

Changed

  • Change the string guesser to work with multiple levels instead of plainly enabled/disabled and the aggressive toggle.
    • The new option is used via the API GlobalConfig.RODATA_STRING_GUESSER_LEVEL or via the CLI --rodata-string-guesser level.
    • Meaning of the new levels:
      • level 0: Completely disable the guessing feature.
      • level 1: The most conservative guessing level. Imposes the following restrictions:
        • Do not try to guess if the user provided a type for the symbol.
        • Do no try to guess if type information for the symbol can be inferred by other means.
        • A string symbol must be referenced only once.
        • Strings must not be empty.
      • level 2: A string no longer needs to be referenced only once to be considered a possible string. This can happen because of a deduplication optimization.
      • level 3: Empty strings are allowed.
      • level 4: Symbols with autodetected type information but no user type information can still be guessed as strings.
    • The level defaults to 1.
  • Start emitting .size directives by default.
  • Emit jlabel instead of dlabel for jumptable labels by default
  • Emit dlabel instead of dlabel for data, rodata and bss symbols by default

Deprecated

  • The old GlobalConfig.STRING_GUESSER and GlobalConfig.AGGRESSIVE_STRING_GUESSER options are now deprecated, same as the CLI options --string-guesser and --aggressive-string-guesser.
    • The old GlobalConfig.STRING_GUESSER = True is equivalent to the new GlobalConfig.RODATA_STRING_GUESSER_LEVEL = 1
    • The old GlobalConfig.AGGRESSIVE_STRING_GUESSER = True is equivalent to the new GlobalConfig.RODATA_STRING_GUESSER_LEVEL = 4

1.14.3 - 2023-06-19

Added

  • Failcheck for non aligned doubles

Changed

  • elfObjDisasm: Can now disassemble sections with arbitrary names
  • disasmdis: Disable pseudo instructions by default

Fixed

  • (Hopefully) Fix same-vram overlays using symbols from other overlays

1.14.2 - 2023-06-10

Changed

  • Actually add py.typed to pyproject.toml
  • Use bytearray as little as possible

Deprecated

  • writeBytearrayToFile is now deprecated, use writeBytesToFile instead

1.14.1 - 2023-06-10

Added

  • Emit a previous alignment directive for strings.
    • Ensures strings are always word aligned
  • Add py.typed file. Whoops

Changed

  • Purge .balign directive in favor of .align directive

1.14.0 - 2023-05-10

Added

  • Implement --dyn-syms on readelf-like mode.

Changed

  • Improve a bit support for N32 PIC programs.
    • The current issue was spimdisasm was not able to properly generate symbol references for $gp accesses.
    • GOT table now gets its own address from the reginfo instead of the dynamic table.
    • Accesses pointing outside the GOT table are tried to be redirected to sdata, srdata and sbss sections.
  • Minor improvements to readelf output format

1.13.3 - 2023-05-05

Fixed

  • Fix not writing to subfolders properly when a csv filesplit entry has a slash on its name.

1.13.2 - 2023-05-01

Added

  • Add support for .dummy section in csv file split format
  • Add readelf's --section-headers flag to elfObjDisasm

1.13.1 - 2023-04-30

Added

  • Add note about R3000GTE and R5900 instruction set support in the README

Fixed

  • Fix a possible None case in getInstrCategoryFromStr

1.13.0 - 2023-04-30

Added

  • Add support for R3000GTE

1.12.5 - 2023-04-28

Added

  • Add --function-info flag to elfObjDisasm
  • Option for emitting `.size`` directives in the generated assembly
    • Add --asm-emit-size-directive flag to emit size directives on generated assembly

Fixed

  • Fix jumptable end detection algorithm on vram ranges different than 0x80XXXXXX

1.12.4 - 2023-04-19

Fixed

  • Fix user-declared relocs having an incorrect addend

1.12.3 - 2023-04-18

Fixed

  • Fix conflicting -V flag

1.12.2 - 2023-04-18

Added

  • Add --version flag to every cli tool
  • Properly detect -mips1 double literals
    • Fixes issue #57

Changed

  • Emit a comment saying if a reloc is a global one when the emit relocs flag is passed

Fixed

  • Fix data symbols not using local reloc overrides
  • Fix .words not being updated after clearing pointers
  • Some pointer clearing fixes
  • Fix data not being properly disassembled on singleFileDisasm
  • Enforce UTF-8 encoding on generated asm files (PR #111)
    • Thanks to @1superchip
  • Fix incorrect addends on non static symbols from elf files.
    • Fixes issue #110
  • Fix a regression where some %lo symbols weren't being properly paired because of the %got being reused on PIC code
  • Fix sizes for inferred types

1.12.1 - 2023-03-28

Fixed

  • Fix addends bigger than 0x7FFF and smaller than 0x10000

1.12.0 - 2023-03-21

Added

  • Expose known types to spimdisasm via common.gKnownTypes

Changed

  • Improve handling static (local) symbols for non relocated elf object files
  • Fake/non used symbols are not longer emitted when disassembling elf .o files

Fixed

  • Prevents referencing labels and jumptable labels with addends
  • Prevents referencing labels and jumptable labels in non jumptable symbols

1.11.6 - 2023-03-10

Added

  • Add flag to specify instruction category in elfObjDisasm and singleFileDisasm
  • Add ContextSymbol.userDeclaredType and ContextSymbol.autodetectedType

Deprecated

  • Deprecate ContextSymbol.type
    • .type is kept as a property to provide backwards compatibility

1.11.5 - 2023-03-07

Changed

  • Sort detected file boundaries and remove duplicates

1.11.4 - 2023-02-20

Changed

  • Add function vrom to --function-info and tweak its input a bit

Fixed

  • Fix --data-start not processing hex correctly

1.11.3 - 2023-02-15

Added

  • Allow specifying a custom suffix to every autogenerated symbol with --custom-suffix
  • Add "referenced functions" information to the --function-info flag

1.11.2 - 2023-02-13

Added

  • Add flag to emit inline relocs
  • Add ContextSymbol.userDeclaredSize
  • Add --function-info flag

Changed

  • Do not report extra padding in functions if user declared size matches the size of the function
  • FuncRodataEntry: Fix migrate parameter if function has no rodata to be migrated

Deprecated

  • Deprecate ContextSymbol.size
    • It is kept as a property that wraps ContextSymbol.userDeclaredSize

1.11.1 - 2023-01-30

Changed

  • Allow None in FunctionRodataEntry methods
  • FuncRodataEntry: Do not write .section .text if the function is None

1.11.0 - 2023-01-30

Added

  • Install CLI tools as actual terminal programs
  • Allow invoking the CLI tools from spimdisasm as subparsers
  • Report, with a comment, which instruction made spimdisasm detect a function as handwritten function
  • New in the API: FunctionRodataEntry
    • Cleaner interface for rodata migration and similar functions
    • Provides method for intermixing functions and non-migrated rodata symbols in a way the correct order is still preserved

Deprecated

  • The old way of invoking the CLI tools (python3 -m spimdisasm.clitool) is now deprecated, but still works
  • Old functions from FileHandlers which provided rodata migration functionalities are now deprecated in favour of the new FunctionRodataEntry.

Fixed

  • disasmdis: Fix crash if the input isn't a multiple of a word

1.10.6 - 2023-01-28

Added

  • Add hardware registers as constants so they are used by lui/ori pairs
  • Check for bss symbol size to match user declared size
    • If the size doesn't match then a warning is printed to stderr
  • Warn if the globalsegment's vrom start and end is the same
  • Identify 32bitsmode elf flag

Changed

  • Avoid reporting leading zeroes as padding in rodata symbols if the size of the symbol matches the user declared one

Fixed

  • Fix some .text boundaries not being properly detected.

1.10.5 - 2023-01-28

Added

  • Emit a comment on invalid instructions disassembled as words

Removed

  • Remove redundant .noreorder

Fixed

  • Fix disasmdis ignoring endian parameter

1.10.4 - 2023-01-20

Added

  • Add EGCS compiler
  • Add iQue-specific libultra syms and hardware regs
  • Add --data-start and --data-end flags to singleFileDisasm

Changed

  • nops at the beginning of the files are now skipped.

Fixed

  • Avoid trashing function analysis for j jumps outside of the function
  • Fix disasmdis not properly accepting spaces

1.10.3 - 2023-01-08

Fixed

  • Fix OoB for automatic type-based naming

1.10.2 - 2023-01-08

Fixed

  • Fix a small typo on osAppNMIBuffer

1.10.1 - 2023-01-05

Added

  • Add a workaround for addends which does not fit on a 16 bits value

1.10.0 - 2023-01-05

Added

  • Add support for splat's symbol_addrs format for standalone invocations

Changed

  • Rework system to allow/disallow addend references on data

1.9.2 - 2023-01-02

Added

  • Add nameEnd member to ContextSymbol to allow emitting a closing user-declared label

Fixed

  • Fix emitting .align directives on unnaligned jumptables
  • Fix rodata split detection not properly considering special jumptable alignment

1.9.1 - 2022-12-29

Changed

  • Emit a .align 3 directive for every jumptable on non-IDO compilers

1.9.0 - 2022-12-28

Added

  • GlobalConfig variables can now be set via environment variables.
    • Parameters passed by cli take priority over environment variables.
    • Options configured via code (when using this as a library) take priority over environment variables.

Changed

  • Reloc system re-worked. Users can now provide their own relocs to improve the automatic disassembly

Removed

  • loPatch system has been removed and superseded by the global reloc system

1.8.2 - 2022-12-19

Added

  • Check for banned symbols on addends references

1.8.1 - 2022-12-19

Added

  • New interface for allowing banning ranges of symbols, instead of having to add them one by one

1.8.0 - 2022-12-16

Added

  • Allow to type-hint strings with asciz
  • Allow disassembling .data symbols as strings
    • This won't be automatically guessed as with .rodata, this only will happen with type-hints

Changed

Removed

  • setup.cfg was removed and all its info was moved to pyproject.toml

1.7.12 - 2022-12-05

Added

  • Output version on disassembled files
  • Add option to show which symbols reference the disassembled symbol
  • Add --file-splits option to elfObjDisasm

Changed

  • Allow symbol references on rodata (for non jump-tables)

1.7.11 - 2022-11-29

Changed

  • Check size of floats and doubles before migrating them

1.7.10 - 2022-11-26

Added

  • Allow changing the label used for jumptables labels with GlobalConfig.ASM_JTBL_LABEL
  • Allow forcing (and forcing not to) migrate a symbol on rodata migration
  • Show isAutogeneratedPad in the context file (#79)
    • Thanks @simonlindholm
  • Show the first %lo reference for each symbol in the context (#80)
    • Thanks @simonlindholm

Fixed

  • Reference NOTYPE symbols
  • Various GOT fixes

1.7.9 - 2022-11-09

Added

  • Emit a comment for automatically generated bss pads.
    • Those pads are created mainly to properly adjust the .space of a bss symbol if said symbol had an user-declared size

Fixed

  • Fix an OoB issue when trying to post-process the GOT analyzis on non-PIC mode

1.7.8 - 2022-11-04

Changed

  • Improve logic to disassemble .bytes and .shorts
  • Improve logic to find the jumptable ends (again)

Fixed

  • Fix function pointers being incorrectly tagged as %call16 instead of %got
  • Avoid crashing when trying to migrate functions when there's no rodata section
  • Fix wrong migrated rodata on PIC programs
  • Avoid using addends on function references

1.7.7 - 2022-11-02

Added

  • Allow disassembling data symbols as floats and doubles

Changed

  • Improve detection of the end of jumptables
  • Refactor REL handling. It has been simplified
    • This should improve disassembling .o files
  • Symbols from elfs are checked to be in the correct vram range before adding them to the context.

1.7.6 - 2022-10-31

Added

  • Add special handling for the GOT lazy resolver

Changed

  • Refactor GOT handling
    • Should fix IDO 5.3 disassembly
  • Use glabels for jumptable labels when the functions are not being migrated
  • Support MIPS_GOT_HI16, MIPS_GOT_LO16, MIPS_CALL_HI16 and MIPS_CALL_LO16 reloc types from .rel elf sections
  • disasmdis now ignores non hex characters
  • Negative addresses are considered as GOT accesses in PIC mode

1.7.5 - 2022-10-30

Changed

  • Use .gpword on PIC jumptables
  • Use glabel on migrated rodata again until we figure out why it messes matching
  • Do not use glabel on jumptable labels

Fixed

  • Fix showing the got table in a few niche cases

1.7.4 - 2022-10-28

1.7.4: GOT fixes

Added

  • The autodetected size of functions can now be queried from a ContextSymbol with getSize()
  • The arch level can now be specified when disassembling
    • It is detected automatically when parsing an elf file
    • .set gp=64 is disabled on MIPS1 and MIPS2 arch levels
  • elfObjDisasm will now produce a list of functions and non migrated rodata when requesting to migrate functions.
    • This can be useful to bootstrap newly generated C files so the rodata order is easier to preserve

Changed

  • elfObjDisasm now display progress to stdout when disassembling
    • This behavior can be disabled with -q
  • Rodata migration has been slightly tweaked: migration will be performed if only one function references the symbol, contrary to the old "only one reference in the whole codebase must reference the symbol"
    • Seems to be a common pattern on PIC programs compiled with IDO

Fixed

  • Fix using GOT local addresses as functions
  • Fix .data symbols incorrectly referencing GOT local addresses
  • Fix elfObjDisasm using N64 specific symbols by default
  • Migrated rodata will no longer use glabels
    • This change was made to accommodate GOT global/local references

1.7.3 - 2022-10-24

1.7.3: --aggressive-string-guesser

Added

  • New --aggressive-string-guesser flag
    • Tries to decode string even if the string is empty, the symbol may have type information or it is referenced more than once
  • Add PSYQ compiler option
    • Currently it enables the same options as SN64

Changed

  • Do not try to infer the type of a variable if the access types are heterogeneous, which may imply a struct

1.7.2 - 2022-10-24

Added

  • Allow passing context flags to elfObjDisasm

Fixed

  • Fix type inference if the user declared a type for the variable
  • Fix some strings not being properly detected on elf files (again)

1.7.1 - 2022-10-23

1.7.1: elf fixing: got and dynamic programs

Added

  • elfObjDisasm: Flags which try to mimic readelf: --file-header, --syms, --relocs and -display-got
  • elfObjDisasm: Add --split-functions. It has the same behavior as singleFileDisasm
  • elfObjDisasm: Warn when trying to disassemble an abi2 (N32) elf
  • elfObjDisasm: Warn for negative GOT accesses instead of crashing
  • elfObjDisasm: Warn if unhandled flags are found in an elf file

Fixed

  • elfObjDisasm. Fix undefined symbols handling in
  • elfObjDisasm. Fix addends of got global symbols
  • elfObjDisasm. Use rel types types from the elf file if they are available instead of trying to infer them
  • elfObjDisasm: Fix gp value detection on N32 abi
  • elfObjDisasm: $gp access are no longer symbolized if the address is not found in the got table
  • Fix rodata pointer detection in data on elf files (fixes #63)

1.7.0 - 2022-10-18

Added

  • Add leoBootID to libultra syms
  • --no-emit-cpload flag to disable emitting the .cpload directive in PIC programs
    • _gp_disp is emitted instead of the raw immediate values
    • The _gp_disp value is emitted as a comment

Changed

  • Updates rabbitizer requirement to 1.3.1
  • Tweak string disassembly
    • If a symbol is in the middle of a string then the string is aborted and disassembled as .words
    • Check the next bytes (until a word boundary) after the nul terminator of a string are zero. Thanks @Xeeynamo (#64)
    • Strings with '\a' are no longer treated as real strings
  • Avoid pairing %gp_got symbols on non PIC code
  • General cleanups

Removed

  • Remove GlobalConfig.ADD_NEW_SYMBOLS

Fixed

  • Fix --help screen. whoops
  • Fix .byte and .short in little endian (#62)
    • Thanks @Xeeynamo
  • Fix boundaries detection reporting in elfObjDisasm (#65)
    • The output of this report is csv-friendly.
    • Thanks @EllipticEllipsis
  • Fix labels not being emitted in rodata if they were not being word-aligned.
    • Fixes #59

1.6.5 - 2022-10-07

1.6.5: elf fixes

Fixed

  • Avoid crashing if a %got access' address is not in the global table. Prints a warning instead.
  • Fix symbol usage on relocatable files, kinda
  • Ignore .rel sections if the file is not of REL type
  • Avoid emitting %got rels for non PIC disassemblies

1.6.4 - 2022-10-06

1.6.4: Fix symtab parsing from relocated elfs

Fixed

  • Fix symtab parsing from relocated elfs

1.6.3 - 2022-10-04

1.6.3: Speedup for overlay disassembly

Changed

  • Moves the globalSegment check above all the other checks in getSymbol, providing a faster lookup since most of the time overlays usually reference a symbol from the globalSegment over a symbol from another overlay segment from a different category

1.6.2 - 2022-10-03

1.6.2: hotfix

Fixed

  • Fix unhashable type crash
    • Fixes #55

1.6.1 - 2022-10-03 [YANKED]

1.6.1: SN64 strikes again

Added

  • Add align directive for doubles for SN64
  • Track which functions references each symbol
    • Used to improve rodata migration on non-IDO compilers

Changed

  • Use g format specifier when formatting disassembled floats and doubles

1.6.0 - 2022-10-01

1.6.0: Refactor front-end scripts

Changed

  • The frontend scripts were converted to submodules, now those can be executed with the python3 -m spimdisasm.submodulename syntax, allowing to execute them even in the pip installations of spimdisasm.
  • Refactored raw path handling to use pathlib.
  • Add installation instructions to readme.
  • SN64 tweaks:
    • Use .align directive for string disassembly on SN64
    • Migrate const variables to functions on SN64
    • Remove .rdata check on migrated rodata for SN64

Removed

  • Deleted singleFileDisasm.py, simpleFileDisasm.py, disasmdis.py, rspDisasm.py, elfObjDisasm.py

1.5.7 - 2022-09-30

1.5.7: Fix 0 size bss variables

Fixed

  • Fixes an issue where 0 size bss variables where being outputted if the last bss variable of a file had a size which filled its size up until the file boundary

1.5.6 - 2022-09-27

1.5.6: More SN64 tweaks and data/rodata endianess

Added

  • Add option to disassemble data/rodata with different endianess than the global one
  • Allow changing the string encoding per rodata segment

Changed

  • Use .rdata on rodata migration for SN64

Fixed

  • Fixes data analyzis.
    • It was ignoring banned symbols
  • Fix ASM_DATA_SYM_AS_LABEL on bss generation
  • Fix rodata symbols searching during migration
  • Return the created segment by addOverlaySegment

1.5.5 - 2022-09-24

1.5.5: Fix ASM_DATA_SYM_AS_LABEL

Fixed

  • Fix ASM_DATA_SYM_AS_LABEL: It was outputing the data label

1.5.4 - 2022-09-24

1.5.4: More SN64 tweaks

Added

  • ASM_DATA_SYM_AS_LABEL: Allow adding a data symbol as a simple label.
  • Allow range checks on symbols referenced by data symbols
  • Add option to allow all addends referenced by data symbols

Changed

  • late_rodata logic has been tweaked to only be applied when compiler is set to IDO

Fixed

  • Fix use of user-declared sizes on functions and bss symbols

1.5.3 - 2022-09-23

1.5.3: More default banned symbols

Changed

  • Add 0x7FFFFFFF to the list of default banned symbols

1.5.2 - 2022-09-21

1.5.2: elf endianess fixes and rodata migration fixes

Changed

  • Read endianess from elf file
  • Use .section directive on migrated rodata

1.5.1 - 2022-09-19

1.5.1: symbol detection fixes

Changed

  • Check for data pointers in data itself and do a recheck in case the pointer is in the same section but behind the current symbol
  • Properly update original symbol type when creating symbols for sub-4 sizes

1.5.0 - 2022-09-17

1.5.0: dynamic elfs

Added

  • Add compatibility for dynamic elf files
    • .dynsym, .dynstr and .dynamic section parsing
    • .got table parsing
    • Use %got and %call16 syntax for $gp relative symbols.
    • .cpload REG detection

Changed

  • Minor changes on string splitting functions to improve its use as an api

1.4.2 - 2022-09-09

1.4.2: PS2 addresses hotfix

Fixed

  • Fix 0 and negative addresses being treated as real symbols

1.4.1 - 2022-09-03

1.4.1: Overlay function start bugfix

Fixed

  • Fixes a bug in which a function start was wrongly detected on an overlay because the symbol existed for said address on the global segment

1.4.0 - 2022-08-27

1.4.0: RSP and R5900 support

Added

  • Adds proper support for N64's RSP
  • Allows passing any rabbitizer.InstrCategory to SectionText to allow using any instruction set supported by rabbitizer

1.3.0 - 2022-07-08

1.3.0: rabbitizer 1.0.0

Added

  • Rodata boundaries detection

Changed

  • Updated to use rabbitizer 1.0.0

1.2.4 - 2022-07-05

Changed

  • Explicitly require a rabbitizer version smaller than the next major version to avoid possible compatibility issues.
  • Set up automatic discovery on setup.cfg

1.2.3 - 2022-06-11

1.2.3: Fix Python 3.7 compatibility (again)

Fixed

  • This time really fixes 3.7 compat, hopefully

1.2.2 - 2022-06-11

1.2.2: %hi/%lo symbol filtering fix

Fixed

  • Prevents filtering out lui/addiu combos from being real symbols

1.2.1 - 2022-06-10

1.2.1: Packaging fix

Fixed

  • Hopefully fixes a packaging problem on PyPi

1.2.0 - 2022-06-10 [YANKED]

1.2.0: Faster disassembly from rabbitizer

Changed

  • Use rabbitizer as the instruction decoder to speed up instruction analysis and disassembly
  • Other minor changes to try to be compatible with Python 3.7

1.1.7 - 2022-06-08

Changed

  • Allow changing the file offset width comment
  • SortedDict: New class which abstracts away the logic for keeping a sorted dictionary

1.1.6 - 2022-06-03

1.1.6: %hi reuse fix

Fixed

  • Fix %hi reuse with wrong values

1.1.5 - 2022-06-03

1.1.5: More overlay fixes

Changed

  • Move most of the instruction analyzing code to a new independent class
  • Try to track instructions which are likely to not be a %lo and avoid pairing it.
  • Extra checks to avoid using labels from other overlay segments
  • Only stop a look ahead search until we find either an unconditional branch or a jr instruction

1.1.4 - 2022-06-02

1.1.4: Overlay handling fixes

Changed

  • Overall adds more vrom checks for handling shared-vram overlays.
  • The autogenerated symbol size now adjusts itself considering the symbol type and the address alignment

1.1.3 - 2022-06-01

1.1.3: Minor patch

Added

  • Adds a way to register a name getter callback for symbols

1.1.2 - 2022-06-01

1.1.2: More symbol finding cleanups

Added

  • New COMPILER option in GlobalConfig, used to enable some compiler specific tweaks

Fixed

  • General cleanups and fixes related to symbol finding.

1.1.1 - 2022-05-30

1.1.1: Symbol finding fixes

Fixed

  • Multiples workarounds for pairing multiples %hi to the same %lo
  • Fix j target calculation for the look ahead symbol finder
  • Special cases for luis on delay slots
  • Track moving registers by using move, or and addu
  • Invalidate some registers after function calls
  • Check negative branches
  • Fix jump table detector for SN64

1.1.0 - 2022-05-29

1.1.0: Overlay support (hopefully)

Added

  • Add support for overlays which share VRAMs and overlays which may communicate to overlays from other categories.
    • Each new category and overlay segment must be registered in Context
  • The vrom of elements is tracked and stored. It is mainly used to autogenerate overlay's names.
  • The categorization in symbol categories (labels, functions, symbols, etc) is removed. Everything now is stored in only one big dictionary to avoid duplication and lower memory usage.

Changed

  • ElementBase#vram is now just an int as opposed to old int|None.
  • addSymbol, getSymbol and similar methods were moved to ElementBase because of the need for the respective element overlay info.
  • Symbol name generation is delayed as much as possible and autogenerated on the fly.
  • General cleanups

Removed

  • Remove the concept of "fake functions"

Fixed

  • Some minor symbol finder fixes
  • Gix symbols disappearing for no reason

1.0.6 - 2022-05-26

1.0.6: Even more SN64 fixes

Added

  • Add more checks for j as unconditional branch
  • Allow disabling %hi/%lo syntax for constants
  • Add extra global label for other symbols (usually labels) in functions when GlobalConfig.ASM_TEXT_FUNC_AS_LABEL is enabled.

1.0.5 - 2022-05-26

Added

  • Allow setting a .ent and the function name as a label
  • Float register $31 fix for NAMED_REGISTERS=False

Changed

  • Only apply the SN64 DIV fix for non handwritten functions
  • Finer control over pseudo instructions

Fixed

  • Fix CI builds (2)

1.0.4 - 2022-05-26 [YANKED]

Fixed

  • Fix the CI wheel

1.0.3 - 2022-05-26 [YANKED]

Changed

  • Add CI which builds a wheel and publishes it to PyPI

1.0.2 - 2022-05-26

Added

  • Allow changing the line ends to anything via GlobalConfig.LINE_ENDS

Fixed

  • Fix missing f on float registers when GlobalConfig.NAMED_REGISTERS was set to False

1.0.1 - 2022-05-26

Changed

  • Improve RAM usage by removing an almost unused dictionary from the Instruction classes

1.0.0 - 2022-05-26

Added

  • Version 1.0.0