2004-05-21 Frank Ch. Eigler * Makefile.am (AM_MAKEFLAGS): Pass RUNTESTFLAGS. * Makefile.in: Ditto. 2004-05-18 Kaz Kojima * acinclude.m4 (lt_cv_deplibs_check_method): Use pass_all on sh*. * aclocal.m4, configure: Rebuilt. 2004-05-17 Frank Ch. Eigler * lib/libmudflap.exp (libmudflap-init): For C++ test cases only, import some build settings from libstdc++-v3 testsuite_flags. * .../cfrags.exp, .../c++frags.exp, .../cthfrags.exp: Corresponding changes to pass test language. * mf-runtime.c (__mfu_check): Poison the cache with antidote for quicker mode-nop handling. 2004-03-25 Frank Ch. Eigler * mf-impl.h: Added libgcc license header. 2004-03-20 Frank Ch. Eigler * mf-hooks[123].c, mf-runtime.c, mf-heuristics.c: Added libgcc license header. * mf-hooks3.c (__mf_0fn_pthread_create): Correct arg constness. (pthread_create): Simplify stack allocation syntax. 2004-03-08 Loren J. Rittle * mf-hooks2.c: Support FreeBSD. (WRAP_gets): Avoid gets(). * testsuite/libmudflap.c/pass-stratcliff.c: Do not test unimplemented mem/str calls on FreeBSD. * testsuite/libmudflap.c/pass21-frag.c: Do not include on FreeBSD. 2004-01-30 Frank Ch. Eigler * testsuite/libmudflap.c/pass36-frag.c: Add missing free() call. * testsuite/libmudflap.c/pass46-frag.c: New test for -fmudflapir. * testsuite/libmudflap.cth/cthfrags.exp: Add -DSTATIC to compiler flags for static linking permutation. * testsuite/libmudflap.cth/pass40-frag.c: When -DSTATIC, avoid some pthreads code that croaks on linux glibc tls. 2004-01-27 Frank Ch. Eigler * testsuite/libmudflap.c/fail31-frag.c, pass45-frag.c: New tests. 2004-01-15 Frank Ch. Eigler * testsuite/libmudflap.c/pass44-frag.c: New test. 2004-01-12 Frank Ch. Eigler * testsuite/libmudflap.c/fail{28,29,30}-frag.c: New tests. 2004-01-08 Frank Ch. Eigler * testsuite/libmudflap.c/pass43-frag.c: Added missing program rc. 2003-12-11 Frank Ch. Eigler * testsuite/libmudflap.c/pass42-frag.c, pass43-frag.c: New tests. 2003-12-08 Andrew Pinski PR libmudflap/12670 * configure.in: Add check for see if socklen_t typedef is in sys/socket.h. * mf-hooks1.c: Add define if socklen_t is not typedef. * mf-hooks2.c: Likewise. * mf-hooks3.c: Likewise. * config.h.in: Regen. * configure: Regen. 2003-12-08 Frank Ch. Eigler * mf-runtime.c (__mf_watch_or_not): Tweak tracing message. * testsuite/libmudflap.c/fail21-frag.c: Defeat aliasing optimizations. * testsuite/libmudflap.c/pass25-frag.c: Ditto. * testsuite/libmudflap.c/pass26-frag.c: Tolerate non-overlapping (unoptimized) allocation of stack space. 2003-12-07 Richard Henderson * testsuite/libmudflap.c/fail23-frag.c (main): Adjust addend to 11. * testsuite/libmudflap.c/fail27-frag.c (foo): Mark noinline. 2003-12-06 Andrew Pinski partial PR libmudflap/12670 * mf-hooks1.c: Respect Darwin checks. Conditionalize POSIX_SOURCE. * mf-hooks2.c: Likewise. * mf-hooks3.c: Likewise. 2003-11-19 Frank Ch. Eigler libstdc++/11696 * mf-runtime.h.in: Switch to #pragma redefine_extname for symbols interposed at compile time. * testsuite/libmudflap.c++/pass41-frag.cxx: New test. libmudflap/12939 * mf-hooks2.c (semctl): Tolerate FreeBSD. * configure.in: Reorganize check for . * configure: Regenerated. 2003-11-04 David Edelsohn * mf-runtime.c (_ALL_SOURCE): Define for AIX. (_LARGE_FILE_API): Define for AIX. * mf-hooks[123]: Same. (_XOPEN_SOURCE_EXTENDED): Define to 1 for AIX. 2003-10-21 David Edelsohn * mf-runtime.c (_XOPEN_SOURCE_EXTENDED): Define to 1 for AIX. 2003-07-29 Frank Ch. Eigler 2003-07-29 Gerald Pfeifer * configure.in: Update check for union semun. 2003-07-29 Gerald Pfeifer PR other/11673 * mf-hooks2.c [WRAP_semctl]: Fix check for HAVE_UNION_SEMUN. 2003-07-29 Frank Ch. Eigler PR other/11673 * configure.in: Add checks for 64-bit LFS functions, struct semun definition, for BSD compatibility. * mf-hooks1.c: Respect BSD checks. Conditionalize POSIX_SOURCE. * mf-hooks2.c: Ditto. Include for bcmp* decls. * mf-hooks3.c: Ditto. (pthread_create): Try MAP_ANON on platforms without the MAP_ANONYMOUS mmap flag. * configure, config.h.in: Regenerated. 2003-07-23 Frank Ch. Eigler Multithreading fixes: * mf-runtime.c (__mf_object): Store allocating/deallocating thread id. (options): Support new "-thread-stack" option. Rename "-heur-argv-environ" option to "-heur-stdlib". Disable "-lc-mask" and "-lc-shift" options. (__mf_dynamic): Add function pointers for pthread_join/_exit. (__assert_fail): New self-contained function for glibc. * mf-hooks3.c: Essentially rewritten, particularly related to use of __mf_pthread_info array. (pthread_join, _exit): New hook functions. * mf-impl.h (BEGIN_PROTECT): Handle starting_p case. * testsuite/libmudflap.cth/pass40-frag.c: New test. Warning cleanups: * mf-heuristics.c: Add type casts for tracing, sub calls. * mf-impl.h (BEGIN_PROTECT): Redefine to omit result type. Update all callers to declare explicit result holder. (END_PROTECT): Removed. * testsuite/*/*frags.exp: Clean up default MUDFLAP_OPTIONS. 2003-07-15 Diego Novillo * testsuite/libmudflap.c/fail21-frag.c: Add volatile modifiers. * testsuite/libmudflap.c/fail15-frag.c: Likewise. * testsuite/libmudflap.c/fail13-frag.c: Likewise. 2003-07-04 Frank Ch. Eigler * mf-hooks1.c, 2.c, 3.c: New file, splits up content from old ... * mf-hooks: Removed. * mf-impl.h (MF_VALIDATE_EXTENT, BEGIN_PROTECT, END_PROTECT): Move these macros from old mf-hooks.c here. * Makefile.am: Adapt to split-up hook sources for faster builds. * Makefile.in: Regenerated. * mf-heuristics.c: Remove #if-0 block. * mf-impl.h (__mf_state): Reorganize declaration and implementation. (__mf_starting_p): New state only for use while dlsym bootstrapping. (CALL_REAL, __mf_init): Corresponding changes. (TRACE, VERBOSE_TRACE): Include thread id and "mf:" prefix. Update all callers to remove redundant "mf:" prefix. * mf-runtime.h.in: #define a few reentrancy macros for libmudflapth. * mf-hooks3.c: Rewrite chunks to support per-thread __mf_state value. (__mf_pthread_info): Become a hash table. * testsuite/lib/mfdg.exp: Support new "dg-timeout" and "dg-repetitions" directives to control test case execution. * testsuite/libmudflap.cth/pass37-frag.c: Add timeout and repeat options. * testsuite/libmudflap.cth/pass39-frag.c: Ditto for this new test. 2003-06-25 Frank Ch. Eigler * mf-hooks.c (alloca): Separate into stub. (__mf_wrap_alloca_indirect): New function. Use CALL_REAL malloc/free for alloca blocks. (pthread_create): Tolerate failing pthread_attr_get* calls. * mf-runtime.c (__mf_fini): Call __mf_wrap_alloca_indirect. * mf-impl.h (CALL_WRAP): Remove macro. * testsuite/libmudflap.c/pass21-frag.c: Include . * testsuite/libmudflap.c/pass23-frag.c: Include more struct padding for ia64 BIT_FIELD_REF constructs. 2003-06-19 Frank Ch. Eigler * mf-hooks.c (struct pthread_info): Add "thread_errno" field. (__mf_pthread_spawner, __mf_pthread_cleanup): Use it with GUESS libmudflap object type. * mf-runtime.c (__mfu_unregister): Correct cemetary logic to avoid crashes on unregistering STATIC objects. 2003-06-17 Frank Ch. Eigler Based on patch from Eyal Lebedinsky : * mf-hooks.c (__mf_pthread_spawner): Register thread errno. (time, strerror, fopen, fopen64, fclose, fread): New hooks. (fwrite, fgetc, fgets, getc, gets, ungetc, fputc): New hooks. (fputs, putc, puts, clearerr, feof, ferror, fileno): New hooks. (printf, fprintf, sprintf, snprintf, vprintf, vfprintf): New hooks. (vsprintf, vsnprintf, access, remove, fflush, fseek): New hooks. (fseeko64, ftell, ftello64, rewind, fgetpos, fsetpos): New hooks. (stat, stat64, fstat, lstat, mkfifo, setvbuf, setbuf): New hooks. (setvbuf, opendir, closedir, readdir, recv, recvfrom): New hooks. (recvmsg, send, sendto, sendmsg, setsockopt, getsockopt): New hooks. (accept, bind, connect, gethostname, sethostname): New hooks. (gethostbyname, wait, waitpid, popen, pclose, execve): New hooks. (execv, execvp, system, dlopen, dlclose, dlerror, dlsym): New hooks. (semop, semctl, shmctl, shmat, shmdt): New hooks. * mf-runtime.h.in: Corresponding changes. * mf-runtime.c (__mf_ini): Register stdio objects. Use STATIC type. (opts) Rename heur_argv_environ to heur_std_data. (__mf_wrap_main): Use STATIC type for argv/environ strings. * Makefile.am: Corresponding changes. * Makefile.in: Regenerated. 2003-06-11 Frank Ch. Eigler * mf-heuristics.c (__mf_heuristic_check): Disable stack_bounds heuristic for threaded case, and for non-x86-linux targets. * mf-hooks.c (__mf_0fn_calloc): Provide a working dummy implementation for use during pre-main() program startup. (__mf_0fn_*): Make these functions non-static. * mf-impl.h (DECLARE, CALL_REAL): Support calls to 0fn backup hook functions. * mf-runtime.c (__mf_state): Set initial state to "starting". (__mf_resolve_single_dynamic): Tolerate repeated calls for same symbol. (__wrap_main): New function to register argv[] and environ[] strings. (__mf_ini): Call it. (*): In all trace functions, use "%p" as formatter for uintptr_t. * testsuite/libmudflap.c/pass38-frag.c: New test case. * testsuite/libmudflap.cth/pass37-frag.c: Improved test. * acinclude.m4: Add comments with aoliva's concerns about x86_64 pass_all. * aclocal.m4, configure: Regenerated. 2003-06-04 Frank Ch. Eigler * acinclude.m4: Correct typo in AC_MSG_CHECKING. * aclocal.m4, configure: Regenerated. 2003-06-03 Frank Ch. Eigler * acinclude.m4: Force "pass_all" deplibs_check_method for libtool for x86_64 target. Disable caching for this value. * aclocal.m4, configure: Regenerated. 2003-06-02 Frank Ch. Eigler * testsuite/libmudflap.c/pass38-frag.c: Deleted. -fwritable-strings is about to become deprecated, and its present handling bugs are unworthy of fixing. 2003-05-30 Frank Ch. Eigler * testsuite/libmudflap.c/pass38-frag.c: New test for -fwritable-strings. 2003-05-23 Frank Ch. Eigler * mf-runtime.c (__mf_sigusr1_handle): Call unlocked variant of __mf_report, asserting reentrant calling context. 2003-05-23 Frank Ch. Eigler * mf-hooks.c (realloc): Correct reentrancy logic. * testsuite/libmudflap.c/hook-allocstuff.c: New test case. 2003-05-20 Frank Ch. Eigler * mf-hooks.c (LIBMUDFLAPTH_THREADS_MAX): New macro, replaces PTHREAD_THREADS_MAX. Update users. * mf-runtime.c (__mf_usage): Print [active] instead of [default] for active options. * testsuite/Makefile.am (all-local): Prime dejagnu site.exp file with libmudflapth presence indicator. * testsuite/Makefile.in: Regenerated. 2003-05-16 Frank Ch. Eigler * Makefile.am (AM_CFLAGS): Remove "-ansi". * configure.in: Remove silly no-pthreads => no-shared logic. * Makefile.in, configure: Regenerated. * mf-heuristics.c (__mf_heuristic_check): Remove reentrancy hacks. * mf-hooks.c (BEGIN_PROTECT, END_PROTECT): Reorganize reentrancy code. Count reentrancy events. (all hook functions): Don't directly manipulate __mf_state variable. Add TRACE calls to hook functions without them. * mf-impl.h (LOCKTH): Try to count lock contention events. (VERBOSE_TRACE, TRACE): Remove reentrancy hacks. * mf-runtime.c (BEGIN_RECURSION_PROTECT, END_RECURSION_PROTECT): Reorganize reentrancy code. (external __mf_ entry points): Use RECURSION_PROTECT mechanism to identify reentrancy with mutex holding times. (internal __mfu_ entry points): Remove internal reentrancy code. (__mf_init): Use ordinary locked calls. (__mfu_report): Print the two new counts. * testsuite/lib/libmudflap.exp: Filter out junk ld/pthreads messages. * testsuite/libmudfap.cth/cthfrags.exp: New test driver. * testsuite/libmudflap.cth/pass37-frag.c: New pthreads test. * testsuite/libmudfap.cth/cfrags.exp: Adapt to new libmudflap option defaults. 2003-05-09 Frank Ch. Eigler * configure.in: Add pthread support, plus glibc and porting hacks. * Makefile.am (LIBMUDFLAPTH): New conditional, to build -lmudflapth from objects built into ./pth/. * mf-runtime.c (__mfu_watch,register,...): Fork new unlocked functions for internal entry points. Update callers to pick locked vs. unlocked variants. (__mf_resolve_single_dynamic): Extend to support symbol versioning info coming in from a static data structure. (*): Reorder miscellaneous declarations to group data vs functions. (__mf_set_default_options): Simplify. (__mf_usage): Mention threading status of host executable. * mf-impl.h: Move max/min decls here. Reorganize __mf_dynamic decls to match above. (LOCKTH, UNLOCKTH): New macros for Big Libmudflap Lock management. * mf-heuristics.c: Choose between locked/unlocked calls. Add some lock/unlock markers. Remove some unused code. * mf-hooks: Ditto. (pthread_create): New hook function. (__mf_pthread_cleanup, _spawner): New helper functions. * configure. aclocal.m4, config.h.in, Makefile.in: Regenerated. 2003-05-02 Frank Ch. Eigler * testsuite/libmudflap.c/fail27-frag.c: Add more volatile flags. 2002-04-28 Frank Ch. Eigler * Makefile.am (HOOKOBJS): Add *time related hooks. * configure.in: Look for pthreads.h header. * mf-hooks.c (asctime, ctime, gmtime, localtime): New wrappers. * mf-runtime.c: Begin sketching some pthreads support. (__mf_usage): Check for -lpthread presence. (__mf_unregister): Confirm matching unregistration base. (__mf_find_objects_rec): Reduce unnecessary recursion. * mf-runtime.h.in: Add "nothrow" attribute to functions. Add #defines for new hook functions. * mf-impl.h: Corresponding changes. * config.h.in, configure, Makefile.in: Regenerated. 2002-04-27 Diego Novillo * testsuite/libmudflap.c/fail1-frag.c: Add volatile modifiers to prevent being optimized away. * testsuite/libmudflap.c/fail10-frag.c: Likewise. * testsuite/libmudflap.c/fail13-frag.c: Likewise. * testsuite/libmudflap.c/fail14-frag.c: Likewise. * testsuite/libmudflap.c/fail15-frag.c: Likewise. * testsuite/libmudflap.c/fail2-frag.c: Likewise. * testsuite/libmudflap.c/fail20-frag.c: Likewise. * testsuite/libmudflap.c/fail3-frag.c: Likewise. 2003-04-15 Frank Ch. Eigler * Makefile.am (libmudflap_la_LIBADD): Remove -ldl. * configure.in: Look for uintptr_t and -ldl on target. * mf-runtime.h.in: Adjust uintptr_t declaration logic. * Makefile.in, aclocal.m4, configure, config.h.in: Regenerated. * testsuite/Makefile.in: Regenerated. * mf-runtime.c (__mf_sigusr1_respond): Tweak declaration and calls for better C compliance. 2003-04-15 Frank Ch. Eigler * mf-hooks.c (MF_VALIDATE_EXTENT): Remove unnecessary reentrancy prevention code. * mf-runtime.c (__mf_set_default_options): Turn off check-initialization. (__mf_describe_object): Shorten description. * testsuite/libmudflap.c/fail25-frag.c: Turn on check-initialization. 2003-04-07 Frank Ch. Eigler * mf-hooks.c (__mf_0fn_mmap): Correct return value, as per . 2003-04-02 Frank Ch. Eigler * mf-hooks.c (BEGIN_PROTECT): Handle startup-time reentrant calls specially. (__mf_0fn_malloc ... _munmap): New dummy backup calls. * mf-impl.h (CALL_BACKUP): New macros. * mf-runtime.c (__mf_init): Tweak __mf_state during startup. 2003-03-31 Frank Ch. Eigler * Makefile.am (AM_CFLAGS): Remove optimization flags. (HOOKOBJS): Remove dlopen hook. (libmudflap_la_LIBADD): Add -ldl. * mf-hooks.c (dlopen): Remove hook. * mf-impl.h (__mf_dynamic): Ditto. * mf-runtime.c (__mf_resolve_dynamics): Ditto. * Makefile.in: Regenerated. 2003-03-28 Frank Ch. Eigler * configure.in: Check for target gettimeofday, signal, some headers. * mf-impl.h (__mf_opts): Add new "sigusr1_report" field. Comment out inop multi_threaded field. * mf-runtime.c (options): Handle new "-sigusr1-report" option. (__mf_set_options): Correct handling of "-help". (__mf_sigusr1_respond): New function to manage SIGUSR1 response. (__mf_check, __mf_register, __mf_unregister): Call it. (__mf_insert_new_object, __mf_unregister): Respect HAVE_GETTIMEOFDAY. (__mf_report_leaks): Make callable (__mf_tree_analyze): Traverse in-order. Accumulate address bit distribution statistics. (__mf_adapt_cache): Rewrite shift guessing logic based on address bit distributions. * config.h.in, configure: Regenerated. * testsuite/libmudflap.c/fail27-frag.c: New test. * testsuite/libmudflap.c/pass36-frag.c: New test. 2003-03-11 Frank Ch. Eigler * mf-runtime.h.in: Tweak. * Makefile.am, configure.in: Tweak mf-runtime.h generation some more. Don't use intermediate files nor AC_OUTPUT-time postprocessing. * Makefile.in, testsuite/Makefile.in, configure: Regenerated. 2003-03-10 Frank Ch. Eigler * configure.in: Tweak generation of mf-runtime.h some more. It needs to work from both config.status and configure. * configure: Regenerated. 2003-03-10 Frank Ch. Eigler * Makefile.am: Reorganize hook file building. Add auto dependencies. * configure.in: Tweak generation of mf-runtime.h. * mf-runtime.h.in: Add new __MF_TYPE_HEAP_I. * mf-hooks.c (*): Adapt to initialized-heap object type. * mf-impl.h: Tweak cemetary boundaries. * mf-runtime.c (__mf_check): Adapt to new initialized-heap object type. (__mf_insert_new_object, __mf_register, __mf_unregister): Ditto. (__mf_describe_object, __mf_report_leaks, __mf_violation): Ditto. * testsuite/lib/libmudflap.exp (includes): Include build tree. * testsuite/libmudflap.c/pass{26,5}: Further adapt to initialization checking. * testsuite/.../fail{25,26}-frag.c: New tests. * testsuite/.../pass{32,33,34,35}-frag.c: New tests. * Makefile.in, configure: Regenerated. 2003-03-05 Frank Ch. Eigler * mf-runtime.c (__mf_set_default_options): Turn on initialization checking by default. (__mf_insert_new_object): As a temporary hack, assume that new objects registered on the stack start out initialized. * testsuite/libmudflap.c/fail9,pass23,pass[6789]-*: Initialize heap objects by hand. 2003-03-05 Frank Ch. Eigler Switch to macro-style hooks for str*/mem*/b* functions. * mf-runtime.h.in (__MF_TYPE_*): Moved some internal values out. (mem*, str*, b*): Added macro-style hooks for _MUDFLAP case. * mf-runtime.c: #include config.h to enable glibc backtraces again. (__mf_set_default_options): Turn off heur_proc_map. (*): Adapt to to macro-style hook functions. (__mf_object_dead_head, __mf_object_cemetary): Correct bounds. (__mf_check, __mf_register, __mf_unregister): Tweak tracing message. (__mf_violation): Handle __MF_VIOL_WATCH. * mf-impl.h (__MF_TYPE_*): Moved these internal values here. (__mf_dynamic): Removed mem*/str*/b* functions. (TRACE, VERBOSE_TRACE): Add reentrancy locking. (WRAPPER2): New macro for macro-style hooks. * mf-hooks.c: Convert mem*/str*/b* functions to simpler macro-style hooks. (BEGIN_PROTECT): Tweak tracing vs reentrancy-lock ordering. * mf-heuristics.c: Adapt to macro-style hook functions. Correct some comments. * testsuite/lib/mfdg.exp (dg-test): Simplify result string for output pattern tests. * testsuite/libmudflap.c/fail[89]-frag.c: Elaborate output test. * testsuite/libmudflap.c++/c++frags.exp: Enable non-static tests. 2003-02-28 Frank Ch. Eigler * testsuite/libmudflap.c/fail23-frag.c, pass30-frag.c: New tests for global array registration. * testsuite/libmudflap.c++/fail24-frag.cxx, pass31-frag.cxx: Ditto. * testsuite/libmudflap.c++/c++frags.exp: Tweak -static multilib hack. 2003-02-27 Frank Ch. Eigler * Makefile.am: Add gross make bug workarounds. Tweaked SUBDIRS and AM_CFLAGS. * Makefile.in: Regenerated. 2003-02-26 Frank Ch. Eigler Switch to dejagnu. * configure.in (AC_PROG_CXX): Don't look for C++ any more. * Makefile.am (TESTS): Remove simple automake testing. * configure, Makefile.in: Regenerated. (SUBDIRS): Include new testsuite/ directory. * tests/*: Removed all files; moved bulk under: * testsuite/*: New subdirectory tree. * testsuite/libmudflap.c/cfrags.exp: New file, C test driver. * testsuite/libmudflap.c++/c++frags.exp: New file, C++ test driver. * testsuite/lib/libmudflap.exp: New file, derived from libstdc++. * testsuite/lib/mfdg.exp: New file, derived from dejagnu. * testsuite/config/default.exp: New file. * testsuite/Makefile.am, Makefile.in: New files. 2003-01-29 Frank Ch. Eigler * Makefile.am (TESTS_ENVIRONMENT): Remove redundant "-mode-check". (TESTS): Add fail22 and pass29 tests. * mf-runtime.h.in: Change API to take void*/size_t region parameters. Add new access-type parameter for __mf_check. Move __MF_VIOL* out. * mf-impl.h: Corresponding changes. Update CLAMP* macros for void* values. Move __MF_VIOL* here. * mf-runtime.c (*): Adapt to void*/size_t API in mf-runtime.h. (check_initialization): New field in __mf_opts. Default off. (read_count,write_count): New fields in __mf_object. (__mf_check): Implement basic initialization checking. (__mf_insert_new_object): Assume STATIC|GUESS regions are initialized. (__mf_describe_object): Print new fields. (__mf_violation): Identify check/read vs. check/write in messages. * test/pass29-frag.c, test/fail22-frag.c: Basic tests for new "-check-initialized" mudflap option. * test/pass25-frag.c, test/fail21-frag.c: Adapt to API changes. * mf-hooks.c (MF_VALIDATE_EXTENT): Add new access-type parameter. Drop __FILE__/__LINE__ hack. Update callers. (*): Adapt to new mf-runtime.h API. * Makefile.in: regenerated. 2003-01-24 Frank Ch. Eigler * configure.in: Build mf-runtime.h a more proper way. * mf-hooks.c (strdup, strndup): Correct reentrancy logic. * mf-runtime.c (verbose_violations): Turn on by default. * mf-runtime.h.in: Remove some miscellaneous stuff ... * mf-impl.h: ... and move it here. * configure: Regenerated. 2003-01-22 Frank Ch. Eigler * configure.in: Look for C++ compiler. * test/*-frag.c, mf-driver.c: Reformatted with GNU indent and fixed type warnings when built with C++. * test/pass27-frag.cxx, pass28-frag.cxx: New C++ tests. * Makefile.am (TESTS): Run them. (*) Add new rules for building and running C++ tests. (TESTFLAGS): Set new default to avoid libstdc++-v3 shlib issues. * mf-runtime.h.in: Protect with extern "C". * Makefile, configure: Regenerated. 2003-01-06 Frank Ch. Eigler Portability improvements. * configure.in: Look for glibc backtrace headers/functions. * mf-hooks.c: Don't include any more. * mf-runtime.c (__mf_set_options): Call more stdlib functions via CALL_REAL. (__mf_backtrace): Provide alternate baby implementation in absence of glibc. * test/mf-driver.c: Portability tweaks. * acinclude.m4: New file, containing top level libtool.m4. * aclocal.m4, configure, Makefile.in, config.h.in: Regenerated. 2002-12-19 Frank Ch. Eigler * mf-runtime.h.in (HAVE_UINTPTR_T): Define unconditionally. 2002-11-08 Frank Ch. Eigler * mf-runtime.c (options): Add new "wipe-heap", "wipe-stack" options. (__mf_unregister): Implement stack/heap object wiping. (__mf_set_options): Renamed from __mf_process_opts. (__mf_uncache_object): Change arg type, correct callers. * mf-impl.h: Corresponding changes. * mf-hooks.c (realloc): Save/restore heap-wiping flag. * mf-runtime.h.in (__mf_set_options): Extend public API. * test/pass26-frag.c: New test for stack wiping. * Makefile.am (TESTS): Run it. * Makefile.in: Regenerated. 2002-11-07 Frank Ch. Eigler * mf-runtime.h.in (__mf_watch, __mf_unwatch): Extend public API. * mf-runtime.c (__mf_object_t): Add watching_p field. (__mf_watch_or_not): New function to implement object watch flagging. (__mf_watch, __mf_unwatch): New wrappers for above. (__mf_check, __mf_describe_object): Handle objects with watching_p. (__mf_count_violation): Enlarge array. (__mf_uncache_object): Renamed from __mf_remove_old_object. Don't unlink object. Clear cache properly. (__mf_unregister): Unlink object explicitly before uncaching. * test/fail21-frag.c, pass25-frag.c: New tests. * Makefile.in, aclocal.m4: Regenerated. 2002-11-05 Frank Ch. Eigler * test/fail20-frag.c: New test for NULL pointer dereferencing. * Makefile.am (TESTS): Add it. * test/pass-stratcliff.c: Add decls of stpcpy. * configure.in: Test for . Generate mf-runtime.h in build tree from config.h and new file mf-runtime.h.in. * mf-runtime.h.in: Renamed from mf-runtime.h. Tweak uintptr_t decl. * Makefile.in, configure, config.h.in: Regenerated. * mf-hooks.c: Add #undef for wrapped glibc str*/mem* macros. * mf-runtime.c (options, __mf_set_default_options): Support new default "abbreviate" option. (__mf_object.description_epoch): New field. (__mf_describe_object): Conditionally abbreviate objects already displayed in current epoch. Accept NULL input to increment epoch. (__mf_fini, __mf_ini): Reset description epoch. (__mf_register, __mf_unregister, __mf_adapt_cache, __mf_init): Ensure that NULL pointer slot in lookup cache is invalidated. Register a NOACCESS region around NULL. * mf-impl.h: Corresponding changes. 2002-10-16 Frank Ch. Eigler * test/fail19-frag.c, pass24-frag.c, pass-stratcliff.c: New tests. * Makefile.am: Run them. Install mf-runtime.h. * Makefile.in: Regenerated. * mf-hooks.c: Add some markers for more missing functions. * mf-runtime.c (__mf_adapt_cache): Experiment with a utilization-based statistic to tune tune cache size (mask). 2002-10-01 Frank Ch. Eigler * test/pass23-frag.c: New test for bit_field_ref expressions. * Makefile.am, Makefile.in: Add new test. * mf-hooks.c (mmap, munmap): Rewrite to track individual pages. (MF_VALIDATE_EXTENT): Accept zero-size mem/str operations. * mf-runtime.c (__mf_init): Register errno global. (__mf_find_object): Removed function. (__mf_check): Rewrite logic to support accesses across some contiguous but distinctly registered objects. (__mf_remove_old_object): Tolerate cache entries that span contiguous objects. 2002-09-30 Frank Ch. Eigler * test/pass21-frag.c, pass22-frag.c: New tests: alloca, bitfields. * Makefile.am, Makefile.in: Run new tests. * mf-hooks.c (alloca): Correct stack direction logic. 2002-09-26 Frank Ch. Eigler * mf-impl.h (adapt_cache): New option. * mf-runtime.c (__mf_set_default_options): Set its default value. Tweak the tree_aging parameter down. (__mf_check): Maintain separate counter for cache-adaptation. (__mf_tree_analyze): New function to collect object tree stats. (__mf_adapt_cache): New function to automate cache parameters. 2002-09-24 Frank Ch. Eigler * mf-heuristics.c (__init_misc, __mf_heuristic_check): Add hypothetical #if-0'd argv/envp region registration. * mf-runtime.c (__mf_init): Add kludged form of above. (*) Add "heur_argv_environ" flag, default on, to govern this. * mf-impl.h: Corresponding changes. 2002-09-20 Frank Ch. Eigler * test/fail18-frag.c: New test file for NOACCESS regions. * Makefile.am (TESTS): Add new test. * Makefile.in: Regenerated. * mf-heuristics.c (__mf_heuristics_check): Correct deja_vu logic. * mf-impl.h (tree_aging): Add new mudflap_option, default 1000000. (optimize_object_tree): Remove unused mudflap_option. * mf-runtime.h (__MF_TYPE_NOACCESS): New region type. Add printing support throughout. Use .._MAX_CEM for cemetary upper bound. * mf-runtime.c (__mf_init): Register __mf_* globals as NOACCESS regions. (__mf_object): Add new liveness field for use by tree aging. (__mf_check): Trigger tree aging when needed. (__mf_age_tree): New function to decay liveness field. (__mf_find_objects_rec): Use liveness field to rotate tree. (__mf_insert_new_object): Only provide backtrace for HEAP objects. (__mf_unregister): Ditto. (__mf_register): Tweak duplicate-static message. (__mf_violation: Tweak nearby-object counter printing. 2002-09-16 Frank Ch. Eigler * test/pass20-frag.c: New test file. * Makefile.am (TESTS): Reorganize. Add pass20 test. * Makefile.in: Regenerated. * mf-impl.h (TRACE_IN, TRACE_OUT): Remove macros. Update callers. * mf-hooks.c (BEGIN_PROTECT): Add hook tracing here. * mf-heuristic.c (__mf_heuristic_check): Track seen /proc/self/map entries to avoid repeat registration. * mf-runtime.c (__mf_object_cemetary): Don't bother bury GUESS regions. (__mf_register, __mf_unregister): Rewrite GUESS handling logic. 2002-09-09 Frank Ch. Eigler * Makefile.am: Create test sources with #include, not cat>>. * Makefile.in: Regenerated. * test/buildtest.sh: Removed. * test/driver.c (abort_handler, main): Be quiet. 2002-09-06 Frank Ch. Eigler * test/pass18-frag.c, pass19-frag.c: New tests. * Makefile.am (check): Run them. Rebuild test programs each time. * Makefile.in: Regenerated. 2002-09-06 Frank Ch. Eigler * mf-runtime.c (__mf_register): Correct SEGV-inducing error in overlapping object search. (__mf_violation): Likewise for nearby objects. Improve nearby-object listing. cleanup: * mf-runtime.c, mf-hooks.c: Remove "{{{"/"}}}" folding marks. * mf-heuristics.c (__mf_heuristic_check): Tweak message. 2002-09-03 Frank Ch. Eigler alloca support: * Makefile.am (AM_CFLAGS): New definition of needed settings. (HOOKOBJS): Add alloca-hook.o. * mf-hooks.c (alloca): New function to implement alloca in libiberty style. * mf-runtime.c (__mf_report): Call alloca(0) to flush remaining blocks. (__mf_backtrace): Reimplement without using alloca. * Makefile.in: Regenerated. cleanup: * mf-hooks.c: Use VERBOSE_TRACE throughout instead of fprintf(stderr). Correct signedness bugs in length-tracking variables. * mf-impl.h: Make options unsigned. (CALL_WRAP): New macro to parallel CALL_REAL(). (DECLARE): Remove erroneous ";" at end. * mf-runtime.c, mf-hooks.c, mf-heuristics.c: Replace remaining %p formatting specs with %08lx. Correct several compiler warnings. 2002-08-28 Frank Ch. Eigler * mf-runtime.c (__mf_violation): Try harder to locate nearby objects. 2002-08-27 Frank Ch. Eigler libmudflap hook breakup: * Makefile.am (TESTS_ENVIRONMENT): Add ../../gcc to LD_LIBRARY_PATH for libgcc_s. (TESTS): Make dependent on libmudflap. (HOOKOBJS): Break up mf-hooks.o into many little hook objects, compiled from segments of mf-hooks.c. * mf-hooks.c: Corresponding changes: wrap each function in #ifdef/#endif. * Makefile.in: Regenerated. Heuristics reorganization: * mf-heuristics.c (__mf_register_ro_sections, __mf_init_heuristics): Remove these functions. Update callers. (__mf_heuristic_check): Incorporate all the various heuristics. Encode cacheability/retry judgement into trinary return value. Separate start-end logic into a separate fallback heuristic. Only register relevant /proc/self/map segments. * mf-impl.h: Corresponding changes. * mf-runtime.c (__mf_check): Reorganize heuristics fallback logic. (__mf_init): Don't call __mf_init_heuristics. Tracing cleanup: * mf-heuristics.c, mf-runtime.c: Use new MUDFLAP_OPTION "-verbose-trace" to emit all tracing messages other than those of basic public api. Eliminate some duplicate/excessive messages. * mf-runtime.h: Corresponding changes. 2002-08-27 Graydon Hoare * mf-impl.h (WRAPPER): Change to create linker aliases for __wrap and __real when compiled with -DPIC. * mf-hooks.c (WRAPPER): Change all uses of WRAPPER macro slightly. * Makefile.am (AUTOMAKE_OPTIONS): Fix LD_LIBRARY_PATH for tests. * Makefile.in: Regenerate. 2002-08-26 Graydon Hoare * mf-impl.h: New file, private implementation header. * mf-runtime.h: Reorganize a bit. (CLAMPSZ): Fix arithmetic. (__MF_CACHE_MISS_P): Fix arithmetic. * mf-runtime.c: Reorganize a bit. (__mf_dynamic): New structure. (resolve_single_dynamic): New function. (__mf_resolve_dynamics): New function. (__mf_init): Initialize dynamic wrappers. * mf-hooks.c: Macro-ize __real calls. Clamp various bits of arithmetic. Add explicit __mf_check call contexts. * Makefile.am: Add dependencies on mf-impl.h * Makefile.in: Regenerate. * configure.in: Comment out shared override. * configure: Regenerate. 2002-08-22 Graydon Hoare * mf-runtime.c (__mf_process_opts): Sanity-check free_queue_length. (__mf_check): Re-inialize and check heuristics before violation. (__mf_register): Permit updating pure-guess regions. * mf-hooks.c (__wrap_free): Correct some free queue logic. (__wrap_dlopen): New wrapper function. (__wrap_mmap): New wrapper function. (__wrap_munmap): New wrapper function. * mf-heuristics.c (__mf_register_ro_sections): Register *all* regions which are not stack addresses. (is_stack_address): New function. (__mf_init_heuristics): Save and restore state, always initialize with "starting" state. 2002-08-21 Frank Ch. Eigler * mf-hooks.c (MF_VALIDATE_EXTENT): Rewrite to correct off-by-one error. Pass location string. (wrap_strcpy, wrap_strncpy): Remove extra %s in trace strings. * mf-runtime.c (options): Add lc-mask, lc-shift options. (__mf_process_opts): Apply some sanity checking for lc-mask. (__mf_check, __mf_violation): Take new location-string argument. Update callers to pass NULL if necessary. (__mf_backtrace): New smart backtracer function. Calls replace several ad-hoc blocks elsewhere. (__mf_describe_object): Remove bad reentrancy test. Improve tracing message. * mf-runtime.h: Corresponding changes. Public/private markup. (__MF_CACHE_MISS_P): New macro. 2002-08-20 Graydon Hoare * mf-runtime.h: New option: stack_bound (heuristic). Move some macros out of implementation files. * mf-runtime.c: New option string: -stack-bound. Unify recursion protection with hooks. Add more logging. (__mf_check): Call __mf_heuristic_check. (__mf_process_opts): Fix "no-" processing. * mf-heuristics.c (__mf_heuristic_check): New function. * mf-hooks.c: Much off-by-one fixing, recursion protection. 2002-08-20 Frank Ch. Eigler Option parsing improvements, region splitting bug fixes: * mf-heuristics.c (__mf_register_ro_sections): Add warned casts. * mf-runtime.h (heur_proc_map): New libmudflap option. * mf-runtime.c (__mf_set_default_options): Set it. (__mf_usage): Print default values/status. (__mf_process_opts): Support general "no-" option string prefix. (__mf_init): Print __mf_usage on unknown-option error. (__mf_register): Print trace message up front. Correct region splitting logic for case where a subregion disappears. Correct memory leak. (__mf_violation): Make even basic message conditional on option. Build cleanup: * Makefile.am (TESTS_ENVIRONMENT): Add -no-heur-proc-map. (clean-local): New target. (test/*x rules): Add -g CFLAGS. (CFLAGS): Add -freorder-blocks. (MFCONFIG_CFLAGS, INCLUDE): Remove unneeded settings. * Makefile.in: Regenerated. * Makefile, mf-config.h: Removed files. 2002-08-16 Graydon Hoare * mf-runtime.c (__mf_insert_new_object): Factor out of __mf_register. (__mf_remove_old_object): Factor out of __mf_unregister. (__mf_register): Handle guessed regions, splitting guesses when new registrations arrive. (__mf_unregister): Do not unregister guesses. * mf-runtime.h: Move convenience macros around, declare new option fields. Add __MF_TYPE_GUESS. * mf-hooks.c (__wrap_*alloc): Use crumple zones. (__wrap_free): Call __real_free for deferred frees. * Makefile.am: Add more tests, fix dependency. * Makefile.in: Regenerate. * test/pass[13..17]-frag.c: New testcases. * test/fail[13..17]-frag.c: New testcases. 2002-08-15 Graydon Hoare * mf-heuristics.c: New file. * mf-runtime.c (options): Add -trace-calls option. (__mf_init): Call __mf_init_heuristics. 2002-08-14 Graydon Hoare * Makefile.am (TESTS): Add testsuite support. * Makefile.in: Regenerate. * test/mf-driver.c: New file. * test/buildtest.sh: New file. * test/passNN-frag.c: New testcases. * test/failNN-frag.c: New testcases. 2002-08-14 Graydon Hoare * mf-hooks.c: Change __real_strlen() to __real_strlen()+1 when verifying non-size-limited string extents. 2002-08-14 Frank Ch. Eigler * mf-hooks.c: Make __wrap string* functions use __real_str[n]len instead of plain str[n]len for internal checks. * mf-runtime.c (__mf_violation): Print optional stack traceback. 2002-08-14 Frank Ch. Eigler * mf-hooks.c: Remove #if-0 around hooks that are now ld-wrapped. 2002-08-13 Graydon Hoare * mf-runtime.c: Rework configuration to operate on environment variable options rather than #defines (__mf_violation): Add simple fork-a-gdb violaiton mode. (__mf_init): Set static __mf_active_p flag on startup, to inhibit mudflap wrap-based checking during crt0.s. * mf-runtime.h: Declare options structure. * mf-hooks.c: New wrappings for mem*, b*, str* libc functions (temporarily #if 0-ed out). 2002-08-12 Frank Ch. Eigler * Makefile.am, configure.in: New files. * Makefile.in, Makefile, configure, config.h.in: New generated files. * stamp-h.in, aclocal.m4: Ditto. 2002-08-08 Frank Ch. Eigler * Makefile: New file. * mf-config.h: New file: runtime configuration. * mf-hooks.c: New file: interposed libc functions. * mf-runtime.c: New file: bulk of runtime. * mf-runtime.h: New file: public functions.