I have tagged and tarballed Sparse 0.4, now available from <http://kernel.org/pub/software/devel/sparse/dist/sparse-0.4.tar.gz>, with sha1sum `a77a10174c8cdb5314eb5000c1e4f24458848b91`. Highlights and visible changes in this release: * The Sparse validation files have become an automated test suite, invoked via `make check`. Thanks to Damien Lespiau for the initial `test-suite` script. Also thanks to Pavel Roskin for ideas, discussion, and prototyping, and to the contributors of new test cases and test-suite metadata for existing test cases. * New backend `c2xml` by Rob Taylor, which outputs an XML representation of the variable declarations, function declarations, and data structures in a C file. * `sparse` and `cgcc` now have manpages. * Warning changes: * Warn on `return <void expression>;` if given `-Wreturn-void`; off by default because the C99 standard permits this. * Sparse now defaults to -Wno-do-while. * Sparse now defaults to -Wdecl. * -Wno-old-initializer turns off warnings about non-C99 struct initializers * -Wno-non-pointer-null turns off warnings about using a plain integer as a NULL pointer * Initializer entries defined twice and bitfields without explicit signs have changed from errors to warnings. * `cgcc` no longer passes `-Wall` to `sparse` if given `-Wall` on the command line. `-Wall` turns on all Sparse warnings, including experimental and noisy ones. Don't include it just because a project wants to pass `-Wall` to `cc`. If you really want `cgcc` to run `sparse` with `-Wall`, set `CHECK='sparse -Wall'` * Support for more builtin functions: `__builtin_labs`, `__builtin_offsetof`, `__builtin_strcat`, `__builtin_strncat`, and `__builtin_strlen`. * Support for more attributes: `constructor`, `destructor`, `__always_inline__`, `__noinline__`, `used`, `__syscall_linkage__`, `format_arg`, `cdecl`, `stdcall`, `fastcall`, `dllimport`, and `dllexport`. * Support for the `__DATE__` and `__TIME__` preprocessor symbols. * Support for `__alignof` (treated like the existing `__alignof__`). * typeof(bitwise_type) now produces the same type, not an incompatible type; thanks to Al Viro. * Various profile-driven optimizations and changes to compiler optimization flags, making Sparse significantly faster. * Numerous fixes to C standards compliance, thanks to Al Viro. In particular: * Sparse now requires integer constant expressions in various places, not arbitrary expressions. * Sparse now handles NULL pointer constants more correctly. * Sparse now resolves pointer types more correctly in conditional expressions * The `graph` backend now outputs significantly better program graphs, and the Sparse source code includes some `gvpr` scripts to modify these graphs in various ways, such as only showing the callers or callees of particular functions. Thanks to Dan Sheridan. * Linux-style `make` output; for a more verbose make with full command lines, `make V=1`. Thanks to Damien Lespiau. * Numerous bugfixes and internal cleanups; thanks to the many Sparse contributors. Full changelog: Al Viro (51): handle __alignof as equivalent of __alignof__ saner reporting of overlaps in initializers check for whitespace before object-like macro body fix alignment for _Bool fix interaction of typeof with bitwise types better recovery from bad operations on bitwise make copying of EXPR_INDEX non-lazy tie the fields of struct in simple list rewrite of initializer handling fix handling of typeof on structs missing NULL checks in initializer handling take cast_to() out of usual_conversions(), do it in callers mechanically split compatible_assignment_types() null pointer constants have no special meaning for pointer subtraction remove long-dead variable in evaluate_ptr_add() remove useless argument in evaluate_ptr_sub() cleanup of evaluate_assign_op() clean up the typechecking in arithmetics clean up usual_conversions(), kill evaluate_shift() fix index conversions in evaluate_ptr_add() fix default argument promotion move degenerate() down into compatible_assignment_types() in case of compound literal we want to delay examining type warn on return <void expression>; deal with enum members without excessive PITA implement __builtin_offsetof() fix handling of integer constant expressions fix the comma handling in integer constant expressions first pass at null pointer constants make size_t better approximate the reality fix handling of address_space in casts and assignments fix handling of pointers in ?: saner show_type() clean up evaluate_sign() integer_promotions() can't get SYM_NODE or SYM_ENUM start cleaning type_difference() get compatible_assignment_types() deal with all cases fix the sanity check in evaluate_ptr_sub() rewrite type_difference() deal correctly with qualifiers on arrays add __builtin_strlen() no such thing as array of functions new helper: unfoul() handling of typeof in evaluate_member_dereference() file and global scopes are the same for purposes of struct redefining ...,array should degenerate sanitize evaluate_ptr_add(), start checking for pointers to functions fix evaluate_compare() sanitize evaluate_postop() saner -Wtypesign braino in conditional_expression() Alberto Bertogli (1): Implement x86-64 support in cgcc. Alexey Dobriyan (2): Fix infinite loop in free_preprocessor_line() Fix -E handling Christopher Li (2): combinations string clean up Pass a bitmask of keywords to handle_attributes Damien Lespiau (6): Change sparse homepage in ctags headers. __DATE__ & __TIME expansion Beautify all & install Makefile targets test-suite: a tiny test automation script test-suite documentation Sample test-suite test cases Dan Sheridan (2): Improved graph generation using subgraph clusters for functions Add gvpr-based post-processing for graphs Josh Triplett (118): Fix website and repository references in FAQ Fix the version number Remove old version note. gitweb lives at git.kernel.org now. Add a "make dist" that requires $(VERSION) to match `git describe` Add test case for __asm__ __volatile__(...) Make cgcc not pass -Wall to sparse even if passing it to cc Teach cgcc about all currently existing sparse warning options Teach cgcc about -ventry and -vdead Parse asm after a label as a statement, not an attribute Add test case for stdcall and cdecl attributes. Add -Wno-old-initializer to turn off warnings about non-C99 struct initializers Add test case for -Wno-old-initializer Revert unintentional inclusion of warning fix in previous commit. Use %td when printing a ptrdiff_t to avoid problems on 64-bit platforms Remove extra space. Add shebang to gvpr scripts, make them executable, and change usage accordingly Fix an __attribute__() parsing error Expand calling convention test case to cover fastcall Add -Wno-non-pointer-null to turn off warning about using a plain integer as a NULL pointer Add __builtin_strcat and __builtin_strncat. Ignore the GCC constructor and destructor attributes Remove inaccurate comment designating some attributes as windows-specific. Move the ident for defined() into the preprocessor section. Reorganize attribute list for readability. Add double-underscore variant __always_inline__. Add double-underscore variant __noinline__. Add no-double-underscore variant "used", ignored like "__used__". Add double-underscore variant __syscall_linkage__. Add no-double-underscore variant format_arg. Add explanatory comment about direct use of __IDENT for preprocessor idents. Sparse always defines __STDC__ 1, so cgcc does not need to do so Fix old typo: s/wierd/weird/ Canonicalize URL in FAQ: add www., add trailing slash Change "LD" to "LINK" in Makefile prettyprinting. Makefile prettyprinting: make INSTALL and other output line up correctly Add test case for infinite loop in free_preprocessor_line() Turn on -Wdecl by default. ctags: Use const as appropriate in cmp_sym() validation/old-initializer.c: Make the_s static to avoid extraneous warning. validation/restricted-typeof.c: Make globals static to avoid extraneous warnings. validation/escapes.c: Make globals static to avoid extraneous warnings. validation/non-pointer-null.c: Make global static to avoid extraneous warning. Merge commit 'viro/integer-constant' Move all the preprocessor tests into validation/preprocessor/ Move test-suite output files to validation/.gitignore .gitignore: Stop ignoring all dotfiles validation: Update comments for current Sparse behavior and test-suite. Add test-suite comments to all the obvious preprocessor tests Make preprocessor-loop a normal numbered preprocessor test Add test-suite comment to preprocessor21. Add test-suite comment to address_space.c Make clean depend on clean-check Rename asm-volatile to better describe what it tests Add test-suite comment to label-asm.c Remove "check-exit-value: 0" and rely on default; remove extra blank line. Add test-suite comment to bad-array-designated-initializer.c Add c2xml to .gitignore Split c2xml build rule into compile and link stages, and add the quiet prefixes expression.h needs lib.h for struct position and symbol.h for int_ctype Fix GCC warnings in c2xml Fix sparse warnings in c2xml: mark globals static and remove unused globals Fix test-suite to handle stdout and stderr separately, and fix up tests Add test-suite metadata to bad-cast.c Add test-suite metadata to bad-ternary-cond.c, and remove now-redundant comment Add test-suite metadata to initializer-entry-defined-twice.c Add test-suite metadata to context.c Add test-suite metadata to escapes.c Add test-suite metadata to calling-convention-attributes.c Fix typos in test-suite documentation Makefile: stop cleaning files we didn't make and have no business cleaning Add test-suite metadata to old-initializer.c; also test with -Wno-initializer allocate.h: Stop needlessly returning a void value in __DO_ALLOCATOR Turn off -Wdo-while by default. Add test-suite metadata to label-attr.c validation/builtin_safe1.c: Show the unsafe macro argument Make "Initializer entry defined twice" a warning, not an error Remove explicit restatements of defaults in metadata for member_of_typeof test Remove explicit restatements of defaults in metadata for outer-scope test Remove explicit restatements of defaults in metadata for comma test Add test case for comparing null pointer constant to int. Makefile: Use -O2 -finline-functions, not just -O cse: Size insn_hash_table more realistically, speeding up CSE significantly Add some missing dependencies in the Makefile Drop -fpic; it hurts performance and we don't build libsparse.so by default Add another test case to validation/comma.c ctags: Handle some new namespaces and symbol types. is_zero_constant: declare saved const Add test case for -Wtypesign Sort warning options in lib.c and lib.h Rename Wcast_to_address_space to Wcast_to_as to match the command-line argument Add a manpage for sparse Install the Sparse manpage cgcc: Sparse accepts -Wcast-to-as, not -Wcast-to-address-space Rename Wundefined_preprocessor to Wundef to match the command-line argument cgcc: Sparse accepts -Wundef, not -Wundefined-preprocessor Use -fno-strict-aliasing, as the ptrlist code seems to violate C99 strict aliasing rules Add test-suite annotations to restricted-typeof.c Add test-suite annotations to double-semicolon.c Add test-suite annotations to check_byte_count-ice.c Add test-suite annotations to badtype4.c Add test-suite annotations to varargs1.c Add test-suite annotations to struct-attribute-placement.c Add test-suite annotations to non-pointer-null.c Add test-suite annotations to struct-ns1.c Add test-suite annotations to noderef.c Makefile: Use ?= to allow overriding OS or AR on the Make command line FAQ: Point to URL on vger for subscription instructions and archives README: recode from ISO-8859-1 to UTF-8 validation: Rename typeconvert.c to integer-promotions.c to match its purpose Add test-suite annotations to integer-promotions.c Add test-suite annotations to cond_expr.c Add test-suite annotations to function-pointer-modifier-inheritance.c validation: Update comment in type1.c to reflect current state of Sparse Add test-suite annotations to init-char-array.c Add a manpage for cgcc Add SEE ALSO for cgcc in sparse manpage Makefile: VERSION=0.4 Kovarththanan Rajaratnam (1): libxml compile fix on Cygwin Michael Stefaniuc (3): Ignore the cdecl and stdcall attributes for now. Add test for typedef on pointer to function with stdcall attribute. '\?' is a valid escape character defined by ANSI C. Its value is '?'. Mike Frysinger (1): Makefile: improve flag handling Pavel Roskin (5): Improve error message if using a member of an incomplete struct or union Bitfield without explicit sign should be a warning, not an error cgcc: preserve sparse exit code if -no-compile is used Avoid use of libc headers in the validation suite Fix warnings about undeclared globals, they are irrelevant to the test Ramsay Jones (2): Add (more) support for WIN32 attribute names Add cygwin support to cgcc Randy Dunlap (1): add __builtin_labs() Rob Taylor (4): add end position to symbols add sparse_keep_tokens api to lib.h new get_type_name function add c2xml program Yura Pakhuchiy (1): Make cgcc filter out all sparse warning related options [email protected] (4): tokenize.c: Replace handwritten strncmp with existing function. expression.c: Clean up match_oplist() and add missing va_end() parse.c: Adding va_end(). tokenize.c: Simplify drop_stream_eoln(). -- Josh Triplett
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