See full list of changes at http://frama-c.com/Changelog.html#Nitrogen-20111001
Nitrogen Release [20111001]
Frama-C General
New Features
* [Cil] Enumerated constants are kept in the AST.
* [Cil] Implement precise dataflow on switch constructs. As side effect, improve precision of value analysis.
* [Cil] Fixed#720 (incorrect simplification of switch).
* [Cil] Support for &"constant_string" in parser.
* [Cil] Normalization of lval: T+1 ==> &T[1] when T is in fact an array (implies *(T+1) ==> T[1])
* [Cil] Pretty-printing lval and term_lval the same way
* [Cil] Cache results of offsets computations.
* [Cil] Add support for GCC specific cast from field of union to union
* [Kernel] Exit status on unknown error is now 125. 127 and 126 are reserved for the shell by POSIX.
* [Kernel] Better error message when plug-in crashes on loading (bts #737).
* [Kernel] Big integers can now be displayed using hexadecimal notation.
* [Kernel] \at(p,Old) is pretty-printed as \old(p).
* [Kernel] Some messages may be printed several time for the same line if they refer to different columns.
* [Kernel] Better handling of comments with -keep-comments and new API. See Cabshelper.Comments and Globals.get_comments_*
* [Kernel] Better pretty printing of lists of any elements
* [Kernel] Current pragmas no longer give rise to code annotations (as they do not contain anything that can be proven).
* [Kernel] Improve space complexity of function stmt_can_reach.
* [Kernel] New kind of command-line parameter, for commands that do heavy output. Used for Value, Pdg and Metrics.
* [Logic] Added support for bitwise operators --> and <--> into ACSL formula.
Carbon Release [20110201]
Frama-C General
New Features
* [Configure] Frama-C does not require Apron anymore (Why does for Jessie). Thus fix bug #647.
* [Kernel] Improve performance on platform with dynami.c loading. Mainly impact value analysis (for developers: improve
efficiency of Dynamic.get).
* [Kernel] Handle errors better when they occur when exiting Frama-C. Slight semantic changes for exit code: - old code 5 is now
127; - code 5 is now: error raised when exiting Frama-C normally; - code 6: error raised when exiting Frama-C abnormally.
* [Logic] Fix priority bug in parser.
* [Logic] Mentioning a formal on the left-hand side of an assigns clause is now an error when type-checking logic annotations.
* [Makefile] Fixed bug #638. By default, warnings are no more errors when compiling a public Frama-C distribution and plug-ins.
SVN versions of Frama-C are still compiled with "-warn-error A".
Carbon Release [20101201]
Frama-C General
New Features
* [Cil] Be less agressive during inline function merge. Alpha equivalent function are now kept separate.
* [Cil] Clean up local variables handling and pretty-printing modified pBlock method interface (unified pBlock and pInnerBlock)
* [Cil] Cil normalization takes care of abrupt clauses
* [Configure] Better detection of native dynlink support.
* [Kernel] Feature #484 about requires into named behaviors
* [Kernel] Fixed bug #548: limit.h now syntactically correct. Architectures other than x86_32 still unsupported.
Boron Release [20100401]
Frama-C General
New Features
* [Cil] Extend logic pretty printer to handle all specific clauses
* [Configure] Dynamic plug-ins are now statically linked by default whenever native dynlink is not usable (bts #301).
* [Configure] Compiling the GUI now requires LablGnomeCanvas.
* [Kernel] Add status for all clauses
* [Kernel] Clarification of the multiple accesses warning. Becomes "undefined multiple accesses in expression".
* [Kernel] Better error messages when a dynamic plug-in cannot be loaded.
* [Kernel] Better -*-help.
* [Kernel] New option -no-dynlink in order to prevent loading of dynamic plug-ins.
* [Kernel] The journal is generated only if the GUI is crashing, or if the option -journal-enable is explicitely set (fixed issue
#330).
* [Kernel] Backtrace when Frama-C is crashing (only if Frama-C is compiled with caml >= 3.11.0)
* [Kernel] New option "-plugin-h" as an alias for option "-plugin-help"
* [Kernel] Preliminary standard C library in $FRAMAC_SHARE/libc
* [Logic] Better error message when using = in annotations
* [Logic] ordering of clauses in contracts
* [Logic] If a C typedef integer, real or boolean exists, it takes precedence over corresponding logic type. The logic type
remains accessible through its utf-8 denomination.
* [Logic] Support for type abbreviation in logic
* [Logic] Support for "reads \nothing"
* [Logic] Adding "\pi" as built-in symbol
Beryllium Release [20090902]
Frama-C General
New Features
* [Configure] Detection of dot if required.
* [Journal] Better handling of exceptions.
* [Kernel] Slightly less false alarms with -warn-unspecified-order
* [Makefile] Why is no longer a compilation dependency. It is required only at runtime for the experimental WP plugin.
* [Makefile] Now possible to build custom binaries for plug-ins. Roughly these binaries are frama-c[.byte] + the plug-in
statically-linked. The goal is called "static" in the plug-in's makefile.
Frama-C is a suite of tools dedicated to the analysis of the source code of
software written in C.
Frama-C gathers several static analysis techniques in a single collaborative
framework. The collaborative approach of Frama-C allows static analyzers to
build upon the results already computed by other analyzers in the framework.
Thanks to this approach, Frama-C provides sophisticated tools, such as a slicer
and dependency analysis.
