CHANGELOG.org 17 KB
## Copyright (C) 2017 Jeremiah Orians ## This file is part of M2-Planet. ## ## M2-Planet is free software: you can redistribute it and/or modify ## it under the terms of the GNU General Public License as published by ## the Free Software Foundation, either version 3 of the License, or ## (at your option) any later version. ## ## M2-Planet is distributed in the hope that it will be useful, ## but WITHOUT ANY WARRANTY; without even the implied warranty of ## MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the ## GNU General Public License for more details. ## ## You should have received a copy of the GNU General Public License ## along with M2-Planet. If not, see .
1.11 - 2023-11-01
Added
Added support for #warning. Added global structs (and . operator). Added local structs. Added (u)int8_t, (u)int16_t and (u)int32_t. Properly remove blocks that are not used (e.g. after #if 0)
Changed
Updated M2libc dependency
Fixed
Fixed doubly indirect structs. Fixed a few segfaults. Fixed macro expressions with ). Add sufficient padding when assigning global constants on 64-bit architectures. Fix structs greater than 512bytes in size on armv7l.
Removed
1.10 - 2022-05-01
Added
Generates a warning on unknown preprocessor commands Implemented C99 negation Add support for empty defines Implemented support for #ifdef and #ifndef Implemented #error statement support Add support for evaluating macro variables Define arch specific variables __i386__ __x86_64__ __arm__ __aarch64__ __riscv __riscv_xlen Implemented #undef statement support Add support for char** arrays Added basic test for multi-dimensional arrays Implemented minimal variable dereferencing support (base types only) Add support for assignment operators Add riscv32 port Enable riscv32 tests Added #FILENAME statement functionality to enable more flexiblity with debug messages
Changed
Updated M2libc dependency
Fixed
--max-string now validates passed input is an integer -D now throws an error if not passed an argument Fix segfault on half done #define statements Correct #define behavior inside of #if/#elif/#else/#endif blocks make clean now cleans up RISCV tests catch half broken #define (statements instead of segfaulting no longer segfault on null macro name no longer try to expand null tokens Catch the special case of attempting to remove a NULL macro token Fixed nested #if behavior to do the actual correct thing
Removed
1.9 - 2021-10-03
Added
Add riscv64 port Add tests for riscv64
Changed
Breakup program function to reduce complexity and risk of errors Update M2libc to enable RISC-V Development Update all tests to work around breaking update in blood-elf
Fixed
Stop hang on large global arrays Fixed Memory leak on read token Fixed Global buffer overflow in collect_weird_string Updated info in HACKING Report proper error message for negative global array values Fix global array initialization to allocate the correct amount of memory Fix Problem with global arrays Catch truncated function calls and truncated array statements
Removed
1.8 - 2021-06-08
Added
AArch64 added support for arithmetic right shift AMD64 added support for unsigned comparisons armv7l added support for unsigned comparisons AArch64 added support for unsigned comparison added support for --max-string to enable arbitrary large C tokens and strings Added prototype output buffering for x86 List of known M2-Planet issues has been added Added first generation implemention of typedef Add newline tokens to parse stream Add a preprocessor-only mode (-E) Add macro directives to token_list Add support for conditional inclusion (#if, #elif, #else, #endif) Add error checking for unexpected #endif Added hacky version of #define support (#if defined($FOO)) Add a test for supported preprocessor features Added simple macro expansion Add support for global char foo[12]; definitions Added support for make -j $num build operations for tests to speed up testing on multicore systems Enable virtualization of bare metal binaries Add support for &global_variable Added M2 to default macro environment to enable #if defined(M2) M2-Planet specific functionality Add support for -D variable and -D variable=value Added -e (errexit) shell option in scripts, where possible
Changed
knight-posix HEAP pointer now set by kernel rather than libc knight now leverages new SET instructions to reduce instruction count and processing time. Make type information localized to the inside of statements Default types available and added --bootstrap-mode flag to enable the old behavior for cc_* emulation Improve error reporting for unexpected non-newline Moved all low level primitives into M2libc Updated tests to leverage M2libc Standardized test scripts tests: use new-style mescc-tools flags Harmonize --debug behaviour for all scripts of the same test Unified all tests for all architectures Replace file_print with fputs Skip "extern" in type definitions. This makes supporting gcc >= 10 easier in GNU Mes.
Fixed
AArch64 Fix LSEEK syscall number
Arithmetic recursion to match gcc behavior in regards to if(-1 > 0)
Fix x86 behavior on unsigned compares
Remove Segfault that occurs when outputing files in excess of 100MB in size
Fix x86 close syscall
Type abuse bugs that resulted in segfaults
Fixed the backwards assignment of x86/AMD64 division
Fix e25c1995aa SCM MES regression
Fixed the backwards modulus
Various segfaults in the new macro preprocessor
Fix all special cases where line number was wrong
Removed
Removed obsolete bootstrap directory Removed need for fixup Remove test/common_* files with M2libc transistion
1.7 - 2020-11-15
Added
Added common error catch for the declaration of variables inside of loops that usually results in crashes Added support for C multi-strings
Changed
Changed ELF headers for FreeBSD compatibility Changed sha256 function to be more compatible with FreeBSD Changed malloc behavior to accept non-exact brk returns Changed looping tests to reflect new expected code behavior in regards to variable declaration inside of loops
Fixed
Type regression in cc_* compatibility Shift behavior to better match C standard 64bit host behavior in regards to primary_expr_number in knight tests GCC 10 compatibility
Removed
1.6 - 2020-04-30
Added
Added test for chdir and getcwd family of posix primitives Added fflush stub, for code to match our behavior when compiled with GCC (we don't buffer) Added fseek and rewind functions
Changed
Updated kaem Revised 27 to include dwart stubs Restructured tests to enable future growth Reengineered M2-Planet to leverage blood-elf v1.0's output format
Fixed
AArch64 wasteful stack Fixed continue behavior Generate fully proper elf output
Removed
1.5 - 2020-02-01
Added
Added support for \a and \b Added support for long Added support for size_t Added support for ssize_t Added support for const keyword Added support for alternate instructions for signed/unsigned combinations Added is_signed data to all types Added support for signed multiplication, division and modulus Added dist build target Added a manpage for M2-Planet Added support for nested structs thanks to fosslinux Added support for access, chdir and fchdir primitives Added AArch64 target (mescc-tools 0.7.0 required), all tests passing but rough on the edges Added require support to reduce number of segfaults possible Added first pass error checking in primitives Added first knight-native cc-minimal.c
Changed
Reordered types to prefer longs over unsigned over ints or chars Replaced NOP with NULL to better match what it is really ment. Enabled large binary support in knight-native
Fixed
Typo: Recieved -> Received ARMv7l elf-header regression Corrected AMD64's xchg rax, rbx into it's proper encoding A great deal of typos thanks to Andrius Štikonas Regression in numerate_number Segfault found in build_member when passed a non-number Segfault found in tokenizer Segfault in string hexifier Enabled skipped cleanup scripts Unbalanced { segfaults
Removed
Removed bootstrap process as it belongs in mescc-tools-seed instead. Removed need for fixup_int32 Removed unneeded lines in .gitignore
1.4 - 2019-06-23
Added
Changed
Tweaked cc_types.c to better match amd64 assembly Replaced out with output_list in cc_core.c For 32bit behavior on 64bit platforms Replaced generated seed with hand written seed in M1
Fixed
Removed
1.3 - 2019-04-22
Added
Added port to Knight-Native Ported 24/24 working tests for AMD64 Added support for CONSTANT to leverage sizeof(type)
Changed
Added basic verification of the compiled program (kaem) to test25 Added basic verification of the compiled program (Slow_Lisp) to test26 Updated from mescc-tools from 0.6.0 to 0.6.1 (To gain support for --64) Changed test26 to adust behavior according to struct size
Fixed
Corrected Global char* to behave correctly when given a static string Ensured pointers match register size
Removed
Removed need to hand calculate struct sizes
1.2 - 2019-04-14
Added
Added 24/24 working tests for armv7l Port to ARMv7l and ARMv6l both work
Changed
ELF-code segment now writable for ARMv7l without debug Updated from mescc-tools from 0.5.2 to 0.6 (with changes in checksums due to alternate null padding)
Fixed
Fixed unsigned division in ARMv7l port Fixed non-uniform behavior across locales and *BSDs Fixed broken stack in ARMv7l thanks to dddddd
Removed
1.1 - 2019-03-09
Added
Added support for \f, \v and \e Added refresh to bootstrap.sh to build seed from cc_x86.s Added missing license headers Added support for ~expressions Added prototype for Slow_Lisp build test Added Custom type for mes.h Added support for octal and binary numbers Added support for \0 Added support for GET_MACHINE_FLAGS in tests Added --architecture flag Added 24/24 working tests for knight-posix Added working HEAP/malloc to knight-posix
Changed
Converted M2-Planet to use GNU style error message Seed.M1 when built will now have the same checksum as M2-Planet self-hosted Harmonized license headers Updated M1 to current version Updated hex2 to current version Updated get_machine to current version Updated to mescc-tools 0.6.0 syntax Changed default architecture to knight-native Moved x86 specific exit.c and putchar.c to test/common_x86/functions Relocated x86 specific libc.M1 to test/common_x86 Formalized Knight-posix execve standard Relocated x86 specific file.c to test/common_x86/functions
Fixed
Fixed typo in file headers Fixed version number to reflect current version Thanks to akkartik several documentation issues were identified and fixed Corrected missed license headers Fix regression caused by Linux 4.17 Fixed broken logic comparions for knight-posix Fixed CONSTANT logic for knight-posix
Removed
Removed redundent x86 definitions
1.0 - 2018-08-26
Added
Added more generic logic to lookup_type Added prim_types to simply the task of reducing search space to primitives
Changed
Reorganized Primitive expression evaluation
Reorganized Collect_local to better match implementation
Broke out process_break
Changed ordering in declare_function to reduce stack operations
Converted weird_string collection into a simpler form
Inlined 2 small stubs as breaking them out wouldn't help implementation
Reordered conditionals for easier implementation and reduced operations
Broke out OUT and FUNCTION to silence a single GCC warning
Moved required_match and line_error into cc_core.c and removed required_match.c
Relocated contents of test/functions to functions
Upgrades mescc-tools to 40537c0200 commit
Tweaked order for for, while and do loops to make them more in commone
Tweaked source to better match assembly
Simplify implementation order of logic
Simplifed the promote_type logic to a much breifer form
Broke out generally useful member lookup
Upgraded seed.M1 to be generated by cc_x86
Fixed
Fixed detection of locals to screen out all non-primitive name space collisions Checked in updated gcc function definition Changed's numerate_number's behavior related to zeros Improved error message to help debugging Fixed bootstrap.sh to build a working M2-Planet binary
Removed
Removed redundent steps in Recursive statement Removed several redundent steps in Collect_arguments
0.3 - 2018-08-12
Added
Added support for global intializers Introduced base offset local and argument load/store Added function pointer requirement into M2-Planet Added test24 - get_machine Added General_Recursion to reduce complexity Added uniqueID to purge all code segments that recreate it's functionality Added struct Char arrays for structs Added in_set to make complex conditional logic into a simple char search
Changed
Made String naming 100% deterministic Broke up all_expr to simplify any manual implementations Cleaned up function calls Simplify variable looksup Reused a union to reduce globals Brought back common recursion Reorged logic tree to reduce complexity Simplified expression Changed EOF detection logic to deal with unsigned bits Reduced Memory usage down from 50MB to 2MB Simplified Tokenizer logic for easier implementation and understanding Simplified program logic Significantly reduced weird string detection logic Trimmed escape_lookup down to a key core Eliminated Several Minor unneeded steps
Fixed
Correct bug in how \" is treated Clean up of & when && should have been used Made test22 for consistent Fixed !c->a regression Fixed ARM platform build Reduced Memory usage per Token to size of string plus fixed padding
Removed
Removed need for string copying in M2-Planet Wasted steps in stack offsets Need for stack relative offsets Extra stack walks Removed need for current_function Removed unused values Removed legacy x86 << >> hacks at the cost of more instructions
0.2 - 2018-06-21
Added
Added type promotion to allow progress on mes.c Add support for anonymous unions inside of structs Added support for passing of function pointers via FUNCTION Added support for Local functions Added support for EOF Added additional debug information to M2-Planet Added line numbers and files names for errors in parsing to help debug Added support for close and fclose Added prototype support for chmod Added basic support for escape strings Added support for continue Added string_length function to string.c Added function numerate_string for converting string to integer Added supporting hex2char, char2hex, dec2char and char2dec functions Added support bitwise xor Added Blood-elf test Added Hex2_linker test Added M1-macro test Added prototypes to allow functions to be independently built Added support for debug format output to help debugging Added function specific counters to make output even more deterministic Added M1-macro seed to eliminate C compiler dependency for bootstrap
Changed
Improving Documentation to help new programmers get functional Cleaned up numerate_number to make it more general purpose Enabled stand alone builds of calloc Unified bitwise operations Made string.c more independent Created a M1-macro stub file to simplify independent builds Created a hex2_linker stub file to simplify independent builds Created a blood-elf stub file to simplify independent builds
Fixed
Minor cleanup and removal of unneeded whitespace Fixed outstanding bug when struct foo* foo and foo->bar was used Fixed ":foo bug Fixed "\n:foo bug Adjusted all previous references to numerate_number to ensure output is consistent Fixed up reader so that '\'' and "\"" work correctly now fixed "\"" bug in string output generation
Removed
Removed need for memset in numerate_number Removed minimal build target as it no longer serves a purpose Removed independent counters for for, while and if jumps
0.1 - 2018-02-23
Added
Added example programs Added first generation libc Added first generation defs.M1 added FOR Loop support along with example Added support for assembly statements Added CONSTANT to the language Added support for <. >= and > expressions Added struct support Added unary - and ! support Added additional functionality such as mixed structs, do while loops, gotos and tests for the new functionality Incorporate breaks into loops Became Self-Hosting
Changed
Tweaked argument processing to help mescc support Isolated global_token to cc.c Moved strings to the bottom of the output Broke out globals Started to move type information out of hard-coded logic Started adding tests instead of examples Put common x86 platform logic in a shared folder to reduce duplicate code Converted from legacy M2-Planet Input.c Output.c to M2-Planet -f input.c ... -f Minor reordering of tests
Fixed
expanded type support to include integer arrays Reduced the memory churn in string creation fixed Capitalization problems
Removed
Removed need for enum in bootstrapping Removed need for global output list Eliminated the global stack Reduced library dependencies
0.0 - 2017-07-05
Added
Added minimal tokenizer Added minimal string support Added minimal parser