libmudflap/ChangeLog

   1 2004-08-03  Frank Ch. Eigler  <fche@redhat.com>
   2
   3         * mf-runtime.c (compare_uintptr_t): Remove function.  Inline
   4         simplified contents in all former callers.
   5
   6 2004-07-27  Ulrich Weigand  <weigand@informatik.uni-erlangen.de>
   7
   8         * mf-runtime.c (__mf_fini): Set mudflap_mode to mode_nop in
   9         the statically linked case.
  10
  11 2004-07-27  Frank Ch. Eigler  <fche@redhat.com>
  12
  13         * splay-tree.[ch]: Remove.  Merge contents into ...
  14         * mf-runtime.c: ... here, renaming symbols and making all functions
  15         static.  Remove unused min/max functions.
  16         * Makefile.am: Forget about splay-tree.[ch].
  17         * Makefile.in, testsuite/Makefile.in: Regenerated.
  18
  19 2004-07-21  Frank Ch. Eigler  <fche@redhat.com>
  20
  21         * mf-runtime.c (__mfu_check): Remove mistaken mode-nop handling.
  22         (__mfu_usage): Include (C) 2004.
  23         * mf-hooks3.c (__mf_find_threadinfo): Don't call tracing functions
  24         here.  Include a comment explaining why.
  25
  26 2004-07-20  Frank Ch. Eigler  <fche@redhat.com>
  27
  28         * mf-impl.h (__mf_options): Add ignore_reads and timestamps fields.
  29         * mf-runtime.c (options): Give them a name.
  30         (__mf_set_default_options): Set them.
  31         (__mf_insert_new_object, __mfu_unregister): Optionalize timestamps.
  32         (__mf_violation): Warning cleanup.
  33         * mf-impl.h (MF_VALIDATE_EXTENT): Support ignore_reads option.
  34         * splay-tree.c (splay_tree_delete_helper): Remove obsolete decl.
  35
  36 2004-07-15  Frank Ch. Eigler  <fche@redhat.com>
  37
  38         g++/15861
  39         * mf-runtime.c (__mf_init): Make it non-static.  Tolerate
  40         repeated invocation.
  41
  42 2004-07-09  Frank Ch. Eigler  <fche@redhat.com>
  43
  44         Test case for g++/15861
  45         * testsuite/libmudflap.c++/ctors-[12].cxx: New test case halves.
  46         * testsuite/libmudflap.c++/ctors.exp: Driver.
  47         * testsuite/libmudflap.c++/c++frags.exp: Elide redundant default.
  48         Look only for *frag* test cases.
  49
  50 2004-07-08  Frank Ch. Eigler  <fche@redhat.com>
  51
  52         ANSI C conversion, libmudflap specialization, recursion limiting.
  53         * splay-tree.h (splay_tree_{de,}allocate_fn): Remove allocation_data
  54         argument and indirection function pointers, update callers.
  55         (splay_tree_s): Add statistics and recursion control fields
  56         num_keys, max_depth, depth, rebalance_p.
  57         * splay-tree.c (splay_tree_splay_helper): Track recursion depth.
  58         Back out of search if it exceeds limit.
  59         (splay_tree_splay): Manage recursion limiting with rebalancing as
  60         needed.
  61         (splay_tree_new): More initialization.
  62         (splay_tree_rebalance): New function.
  63         (splay_tree_foreach): Rewrite using nonrecursive logic.
  64         (splay_tree_xmalloc_allocate, splay_tree_xmalloc_deallocate):
  65         Remove.  Point indirect calls to mf-runtime.c's routines.
  66         (splay_tree_compare_ints, splay_tree_compare_pointers): Remove unused
  67         functions.
  68         (splay_tree_delete, splay_tree_delete_helper): Ditto.
  69         * testsuite/heap-scalestress.c: New test based on one from
  70         Eyal Lebedinsky <eyal@eyal.emu.id.au>:
  71
  72 2004-07-05  Matthias Klose  <doko@debian.org>
  73
  74         * libtool-version: New.
  75         * Makefile.am (libmudflap_la_LDFLAGS, libmudflapth_la_LDFLAGS):
  76         Use -version-info for soname.
  77         * Makefile.in: Regenerate.
  78         * configure.ac: Remove libtool_VERSION macro
  79         * configure: Regenerate
  80
  81 2004-07-05  Zack Weinberg  <zack@codesourcery.com>
  82
  83         * mf-runtime.h.in: Wrap declarations of struct __mf_cache,
  84         __mf_lookup_cache, __mf_lc_mask, or __mf_lc_shift in
  85         #ifndef _MUDFLAP.
  86
  87 2004-06-29  Frank Ch. Eigler  <fche@redhat.com>
  88
  89         Splay tree implementation fork.
  90         * splay-tree.c, splay-tree.h: Copied & modified from libiberty.
  91         Use hard-coded comparison function for uintptr_t.  Remove key/value
  92         deallocation logic.  Cache last splayed key for consecutive lookups.
  93         * Makefile.am, Makefile.in: Use them, don't link to them.
  94         * mf-runtime.c (__mf_object_tree): Adapt to simpler splay_tree_new.
  95         (__mf_find_objects2): Flip successor/predecessor search sequence.
  96         * ansidecl.h, libiberty.h: Removed dummy files.
  97
  98 2004-06-29  Nick Clifton  <nickc@redhat.com>
  99
 100         * configure.ac (AC_CHECK_HEADERS): Add dirent.h
 101         * configure: Regenerate.
 102         * mf-hooks2.c: Surround uses of dirent.h with #ifdef
 103         HAVE_DIRENT_H.
 104         Remove spurious inclusion of <strings.h>.
 105
 106 2004-06-29  Nick Clifton  <nickc@redhat.com>
 107
 108         * mf-runtime.c (pthread_join): Only apply the weak pragma if the
 109         function actually exists.
 110
 111 2004-06-25  Frank Ch. Eigler  <fche@redhat.com>
 112
 113         * ansidecl.h, libiberty.h: New dummy files for building splay-tree.
 114         * config.h.in: Regenerated.
 115
 116 2004-06-24  Frank Ch. Eigler  <fche@redhat.com>
 117
 118         Adopt splay trees for object database.
 119         * Makefile.am: Copy splay-tree.* from libiberty.
 120         * Makefile.in, testsuite/Makefile.in: Regenerated.
 121         * mf-runtime.h.in (__mf_unregister): Add third parameter (type).
 122         * mf-hooks[123].c (*): Add new third parameter to mf_unregister.
 123         * mf-impl.h (BEGIN_PROTECT): Remove some trace text.
 124         * mf-runtime.c: Rewrite code dealing with object database to use
 125         libiberty splay trees.  Remove tree liveness aging option.
 126         * testsuite/libmudflap.c/fail18-frag.c: Add volatile flag.
 127
 128 2004-06-15  Paolo Bonzini  <bonzini@gnu.org>
 129
 130         * configure.ac: New name of configure.in.  Update
 131         AC_INIT, AC_CONFIG_SRCDIR, AC_CONFIG_HEADERS, AC_CONFIG_FILES,
 132         AC_OUTPUT, AM_INIT_AUTOMAKE to the preferred style for
 133         Autoconf 2.5x and Automake 1.7 or later.
 134         * configure.in: Remove.
 135         * configure: Regenerate.
 136
 137         * Makefile.am: Remove useless multilib rules.
 138         * Makefile.in: Regenerate.
 139
 140 2004-06-15  Paolo Bonzini  <bonzini@gnu.org>
 141
 142         * .cvsignore: New file.
 143
 144 2004-06-10  Stephen Crowley  <stephen.crowley@sbcglobal.net>
 145
 146         PR libmudflap/13505
 147         * mf-hooks2.c (semctl): Add cygwin porting hack.
 148
 149 2004-06-09  Frank Ch. Eigler  <fche@redhat.com>
 150
 151         ctype support.
 152         * configure.in: Look for ctype header and glibc implementation.
 153         * mf-hooks2.c (__ctype_{b,toupper,tolower}_loc): Sample ctype
 154         array hooks for glibc 2.3.
 155         * mf-runtime.h.in: Wrap them.
 156         * mf-runtime.c (__mf_init): Leave marker regarding other ctype
 157         implementations.
 158         * testsuite/libmudflap.c/pass47-frag.c: New test.
 159         * configure, config.h.in: Regenerated.
 160
 161 2004-06-04  Frank Ch. Eigler  <fche@redhat.com>
 162
 163         Portability improvements, e.g., libmudflap/15293.
 164         * configure.in: Look for glibc extension functions.  Look for
 165         support of -f{function,data}-sections.  Look for more headers.
 166         Create testsuite/mfconfig.exp.  Correct more "test x.." thinkos.
 167         * Makefile.am: Use $(SECTION_FLAGS).  Collapse piecemeal-compiled
 168         mf-hooks* into usual single object per source.
 169         * mf-hooks*.c: Remove all #if WRAP_foo conditionals.
 170         * mf-hooks2.c: #include a bunch more system headers.  Define strnlen
 171         if system doesn't provide one.
 172         * mf-hooks3.c (struct pthread_info): Add stack_*_alloc fields.
 173         (pthread_create): Use it to properly GC dead thread stacks.
 174         * mf-runtime.c (__mf_violation): Correct snprintf type warning.
 175         * testsuite/Makefile.am: Stop generating site.exp.
 176         * testsuite/mfconfig.exp.in: New file.
 177         * testsuite/config/default.exp: Load new mfconfig.exp.
 178         * testsuite/lib/libmudflap.exp (libmudflap-init): Add extra libraries.
 179         (prune_gcc_output): Add glibc static linking warnings.
 180         * testsuite/libmudflap.*/*frags.exp: Enumerate needed -lmudflap* libs.
 181         * testsuite/libmudflap.c/pass46-frag.c: Ditto.
 182         * configure, Makefile, aclocal.m4, config.h.in, testsuite/Makefile.in:
 183         Regenerated with autoconf 2.57 and automake 1.7.
 184
 185 2004-06-04  Per Bothner  <per@bothner.com>
 186
 187         * configure.in (LIBMUDFLAPTH):  Fix thinko.
 188
 189         * configure.in:  Check for more headers.
 190         * mf-hooks2.c:  Conditionalize on HAVE_SYS_SOCKET_H etc.
 191
 192         * mf-runtime.c:  In two places conditionalize on SIUSR1 rather than
 193         HAVE_SIGNAL as mingw has signal.h but not SIUSR1.
 194
 195 2004-06-01  Andreas Jaeger  <aj@suse.de>
 196
 197         * configure.in: Handle multilibs, support
 198         --enable-version-specific-runtime-libs.
 199         * Makefile.am (lib_LTLIBRARIES): Rename to ...
 200         (toolexeclib_LTLIBRARIES): this for multilib support.
 201         * Makefile.in: Regenerated.
 202         * configure: Regenerated.
 203         * aclocal.m4: Regenerated.
 204         * config.h.in: Regenerated.
 205         * testsuite/Makefile.in: Regenerated.
 206
 207 2004-06-01  Andreas Jaeger  <aj@suse.de>
 208
 209         * testsuite/lib/libmudflap.exp (libmudflap-init): Handle
 210         multilibs, using multilib directory instead of hardcoded path.
 211         Set LD_RUN_PATH.
 212
 213 2004-05-21  Frank Ch. Eigler  <fche@redhat.com>
 214
 215         * Makefile.am (AM_MAKEFLAGS): Pass RUNTESTFLAGS.
 216         * Makefile.in: Ditto.
 217
 218 2004-05-18  Kaz Kojima  <kkojima@gcc.gnu.org>
 219
 220         * acinclude.m4 (lt_cv_deplibs_check_method): Use pass_all on sh*.
 221         * aclocal.m4, configure: Rebuilt.
 222
 223 2004-05-17  Frank Ch. Eigler  <fche@redhat.com>
 224
 225         * lib/libmudflap.exp (libmudflap-init): For C++ test cases only,
 226         import some build settings from libstdc++-v3 testsuite_flags.
 227         * .../cfrags.exp, .../c++frags.exp, .../cthfrags.exp: Corresponding
 228         changes to pass test language.
 229
 230         * mf-runtime.c (__mfu_check): Poison the cache with antidote for
 231         quicker mode-nop handling.
 232
 233 2004-03-25  Frank Ch. Eigler  <fche@redhat.com>
 234
 235         * mf-impl.h: Added libgcc license header.
 236
 237 2004-03-20  Frank Ch. Eigler  <fche@redhat.com>
 238
 239         * mf-hooks[123].c, mf-runtime.c, mf-heuristics.c:
 240         Added libgcc license header.
 241         * mf-hooks3.c (__mf_0fn_pthread_create): Correct arg constness.
 242         (pthread_create): Simplify stack allocation syntax.
 243
 244 2004-03-08  Loren J. Rittle  <ljrittle@acm.org>
 245
 246         * mf-hooks2.c: Support FreeBSD.
 247         (WRAP_gets): Avoid gets().
 248         * testsuite/libmudflap.c/pass-stratcliff.c: Do not
 249         test unimplemented mem/str calls on FreeBSD.
 250         * testsuite/libmudflap.c/pass21-frag.c: Do not include
 251         <alloca.h> on FreeBSD.
 252
 253 2004-01-30  Frank Ch. Eigler  <fche@redhat.com>
 254
 255         * testsuite/libmudflap.c/pass36-frag.c: Add missing free() call.
 256         * testsuite/libmudflap.c/pass46-frag.c: New test for -fmudflapir.
 257         * testsuite/libmudflap.cth/cthfrags.exp: Add -DSTATIC to compiler
 258         flags for static linking permutation.
 259         * testsuite/libmudflap.cth/pass40-frag.c: When -DSTATIC, avoid
 260         some pthreads code that croaks on linux glibc tls.
 261
 262 2004-01-27  Frank Ch. Eigler  <fche@redhat.com>
 263
 264         * testsuite/libmudflap.c/fail31-frag.c, pass45-frag.c: New tests.
 265
 266 2004-01-15  Frank Ch. Eigler  <fche@redhat.com>
 267
 268         * testsuite/libmudflap.c/pass44-frag.c: New test.
 269
 270 2004-01-12  Frank Ch. Eigler  <fche@redhat.com>
 271
 272         * testsuite/libmudflap.c/fail{28,29,30}-frag.c: New tests.
 273
 274 2004-01-08  Frank Ch. Eigler  <fche@redhat.com>
 275
 276         * testsuite/libmudflap.c/pass43-frag.c: Added missing program rc.
 277
 278 2003-12-11  Frank Ch. Eigler  <fche@redhat.com>
 279
 280         * testsuite/libmudflap.c/pass42-frag.c, pass43-frag.c: New tests.
 281
 282 2003-12-08  Andrew Pinski  <pinskia@physics.uc.edu>
 283
 284         PR libmudflap/12670
 285         * configure.in: Add check for see if
 286         socklen_t typedef is in sys/socket.h.
 287         * mf-hooks1.c: Add define if socklen_t
 288         is not typedef.
 289         * mf-hooks2.c: Likewise.
 290         * mf-hooks3.c: Likewise.
 291         * config.h.in: Regen.
 292         * configure: Regen.
 293
 294 2003-12-08  Frank Ch. Eigler  <fche@redhat.com>
 295
 296         * mf-runtime.c (__mf_watch_or_not): Tweak tracing message.
 297         * testsuite/libmudflap.c/fail21-frag.c: Defeat aliasing
 298         optimizations.
 299         * testsuite/libmudflap.c/pass25-frag.c: Ditto.
 300         * testsuite/libmudflap.c/pass26-frag.c: Tolerate non-overlapping
 301         (unoptimized) allocation of stack space.
 302
 303 2003-12-07  Richard Henderson  <rth@redhat.com>
 304
 305         * testsuite/libmudflap.c/fail23-frag.c (main): Adjust addend to 11.
 306         * testsuite/libmudflap.c/fail27-frag.c (foo): Mark noinline.
 307
 308 2003-12-06  Andrew Pinski <apinski@apple.com>
 309
 310         partial PR libmudflap/12670
 311         * mf-hooks1.c: Respect Darwin checks.  Conditionalize POSIX_SOURCE.
 312         * mf-hooks2.c: Likewise.
 313         * mf-hooks3.c: Likewise.
 314
 315 2003-11-19  Frank Ch. Eigler  <fche@redhat.com>
 316
 317         libstdc++/11696
 318         * mf-runtime.h.in: Switch to #pragma redefine_extname for
 319         symbols interposed at compile time.
 320         * testsuite/libmudflap.c++/pass41-frag.cxx: New test.
 321
 322         libmudflap/12939
 323         * mf-hooks2.c (semctl): Tolerate FreeBSD.
 324
 325         * configure.in: Reorganize check for <pthread.h>.
 326         * configure: Regenerated.
 327
 328 2003-11-04  David Edelsohn  <edelsohn@gnu.org>
 329
 330         * mf-runtime.c (_ALL_SOURCE): Define for AIX.
 331         (_LARGE_FILE_API): Define for AIX.
 332         * mf-hooks[123]: Same.
 333         (_XOPEN_SOURCE_EXTENDED): Define to 1 for AIX.
 334
 335 2003-10-21  David Edelsohn  <edelsohn@gnu.org>
 336
 337         * mf-runtime.c (_XOPEN_SOURCE_EXTENDED): Define to 1 for AIX.
 338
 339 2003-07-29  Frank Ch. Eigler  <fche@redhat.com>
 340
 341         2003-07-29  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>
 342
 343         * configure.in: Update check for union semun.
 344
 345 2003-07-29  Gerald Pfeifer  <pfeifer@dbai.tuwien.ac.at>
 346
 347         PR other/11673
 348         * mf-hooks2.c [WRAP_semctl]: Fix check for HAVE_UNION_SEMUN.
 349
 350 2003-07-29  Frank Ch. Eigler  <fche@redhat.com>
 351
 352         PR other/11673
 353         * configure.in: Add checks for 64-bit LFS functions, struct semun
 354         definition, for BSD compatibility.
 355         * mf-hooks1.c: Respect BSD checks.  Conditionalize POSIX_SOURCE.
 356         * mf-hooks2.c: Ditto.  Include <strings.h> for bcmp* decls.
 357         * mf-hooks3.c: Ditto.
 358         (pthread_create): Try MAP_ANON on platforms without the MAP_ANONYMOUS
 359         mmap flag.
 360         * configure, config.h.in: Regenerated.
 361
 362 2003-07-23  Frank Ch. Eigler  <fche@redhat.com>
 363
 364         Multithreading fixes:
 365         * mf-runtime.c (__mf_object): Store allocating/deallocating
 366         thread id.
 367         (options): Support new "-thread-stack" option.
 368         Rename "-heur-argv-environ" option to "-heur-stdlib".
 369         Disable "-lc-mask" and "-lc-shift" options.
 370         (__mf_dynamic): Add function pointers for pthread_join/_exit.
 371         (__assert_fail): New self-contained function for glibc.
 372         * mf-hooks3.c: Essentially rewritten, particularly related to
 373         use of __mf_pthread_info array.
 374         (pthread_join, _exit): New hook functions.
 375         * mf-impl.h (BEGIN_PROTECT): Handle starting_p case.
 376         * testsuite/libmudflap.cth/pass40-frag.c: New test.
 377
 378         Warning cleanups:
 379         * mf-heuristics.c: Add type casts for tracing, sub calls.
 380         * mf-impl.h (BEGIN_PROTECT): Redefine to omit result type.
 381         Update all callers to declare explicit result holder.
 382         (END_PROTECT): Removed.
 383         * testsuite/*/*frags.exp: Clean up default MUDFLAP_OPTIONS.
 384
 385 2003-07-15  Diego Novillo  <dnovillo@redhat.com>
 386
 387         * testsuite/libmudflap.c/fail21-frag.c: Add volatile modifiers.
 388         * testsuite/libmudflap.c/fail15-frag.c: Likewise.
 389         * testsuite/libmudflap.c/fail13-frag.c: Likewise.
 390
 391 2003-07-04  Frank Ch. Eigler  <fche@redhat.com>
 392
 393         * mf-hooks1.c, 2.c, 3.c: New file, splits up content from old ...
 394         * mf-hooks: Removed.
 395         * mf-impl.h (MF_VALIDATE_EXTENT, BEGIN_PROTECT, END_PROTECT):
 396         Move these macros from old mf-hooks.c here.
 397         * Makefile.am: Adapt to split-up hook sources for faster builds.
 398         * Makefile.in: Regenerated.
 399
 400         * mf-heuristics.c: Remove #if-0 block.
 401
 402         * mf-impl.h (__mf_state): Reorganize declaration and implementation.
 403         (__mf_starting_p): New state only for use while dlsym bootstrapping.
 404         (CALL_REAL, __mf_init): Corresponding changes.
 405         (TRACE, VERBOSE_TRACE): Include thread id and "mf:" prefix.  Update
 406         all callers to remove redundant "mf:" prefix.
 407         * mf-runtime.h.in: #define a few reentrancy macros for libmudflapth.
 408         * mf-hooks3.c: Rewrite chunks to support per-thread __mf_state value.
 409         (__mf_pthread_info): Become a hash table.
 410
 411         * testsuite/lib/mfdg.exp: Support new "dg-timeout" and
 412         "dg-repetitions" directives to control test case execution.
 413         * testsuite/libmudflap.cth/pass37-frag.c: Add timeout and repeat
 414         options.
 415         * testsuite/libmudflap.cth/pass39-frag.c: Ditto for this new test.
 416
 417 2003-06-25  Frank Ch. Eigler  <fche@redhat.com>
 418
 419         * mf-hooks.c (alloca): Separate into stub.
 420         (__mf_wrap_alloca_indirect): New function.  Use CALL_REAL
 421         malloc/free for alloca blocks.
 422         (pthread_create): Tolerate failing pthread_attr_get* calls.
 423         * mf-runtime.c (__mf_fini): Call __mf_wrap_alloca_indirect.
 424         * mf-impl.h (CALL_WRAP): Remove macro.
 425         * testsuite/libmudflap.c/pass21-frag.c: Include <alloca.h>.
 426         * testsuite/libmudflap.c/pass23-frag.c: Include more struct
 427         padding for ia64 BIT_FIELD_REF constructs.
 428
 429 2003-06-19  Frank Ch. Eigler  <fche@redhat.com>
 430
 431         * mf-hooks.c (struct pthread_info): Add "thread_errno" field.
 432         (__mf_pthread_spawner, __mf_pthread_cleanup): Use it with GUESS
 433         libmudflap object type.
 434         * mf-runtime.c (__mfu_unregister): Correct cemetary logic to avoid
 435         crashes on unregistering STATIC objects.
 436
 437 2003-06-17  Frank Ch. Eigler  <fche@redhat.com>
 438
 439         Based on patch from Eyal Lebedinsky <eyal@eyal.emu.id.au>:
 440         * mf-hooks.c (__mf_pthread_spawner): Register thread errno.
 441         (time, strerror, fopen, fopen64, fclose, fread): New hooks.
 442         (fwrite, fgetc, fgets, getc, gets, ungetc, fputc): New hooks.
 443         (fputs, putc, puts, clearerr, feof, ferror, fileno): New hooks.
 444         (printf, fprintf, sprintf, snprintf, vprintf, vfprintf): New hooks.
 445         (vsprintf, vsnprintf, access, remove, fflush, fseek): New hooks.
 446         (fseeko64, ftell, ftello64, rewind, fgetpos, fsetpos): New hooks.
 447         (stat, stat64, fstat, lstat, mkfifo, setvbuf, setbuf): New hooks.
 448         (setvbuf, opendir, closedir, readdir, recv, recvfrom): New hooks.
 449         (recvmsg, send, sendto, sendmsg, setsockopt, getsockopt): New hooks.
 450         (accept, bind, connect, gethostname, sethostname): New hooks.
 451         (gethostbyname, wait, waitpid, popen, pclose, execve): New hooks.
 452         (execv, execvp, system, dlopen, dlclose, dlerror, dlsym): New hooks.
 453         (semop, semctl, shmctl, shmat, shmdt): New hooks.
 454         * mf-runtime.h.in: Corresponding changes.
 455         * mf-runtime.c (__mf_ini): Register stdio objects.  Use STATIC type.
 456         (opts) Rename heur_argv_environ to heur_std_data.
 457         (__mf_wrap_main): Use STATIC type for argv/environ strings.
 458         * Makefile.am: Corresponding changes.
 459         * Makefile.in: Regenerated.
 460
 461 2003-06-11  Frank Ch. Eigler  <fche@redhat.com>
 462
 463         * mf-heuristics.c (__mf_heuristic_check): Disable stack_bounds
 464         heuristic for threaded case, and for non-x86-linux targets.
 465         * mf-hooks.c (__mf_0fn_calloc): Provide a working dummy implementation
 466         for use during pre-main() program startup.
 467         (__mf_0fn_*): Make these functions non-static.
 468         * mf-impl.h (DECLARE, CALL_REAL): Support calls to 0fn backup hook
 469         functions.
 470         * mf-runtime.c (__mf_state): Set initial state to "starting".
 471         (__mf_resolve_single_dynamic): Tolerate repeated calls for same symbol.
 472         (__wrap_main): New function to register argv[] and environ[] strings.
 473         (__mf_ini): Call it.
 474         (*): In all trace functions, use "%p" as formatter for uintptr_t.
 475
 476         * testsuite/libmudflap.c/pass38-frag.c: New test case.
 477         * testsuite/libmudflap.cth/pass37-frag.c: Improved test.
 478
 479         * acinclude.m4: Add comments with aoliva's concerns about x86_64
 480         pass_all.
 481         * aclocal.m4, configure: Regenerated.
 482
 483 2003-06-04  Frank Ch. Eigler  <fche@redhat.com>
 484
 485         * acinclude.m4: Correct typo in AC_MSG_CHECKING.
 486         * aclocal.m4, configure: Regenerated.
 487
 488 2003-06-03  Frank Ch. Eigler  <fche@redhat.com>
 489
 490         * acinclude.m4: Force "pass_all" deplibs_check_method for libtool
 491         for x86_64 target.  Disable caching for this value.
 492         * aclocal.m4, configure: Regenerated.
 493
 494 2003-06-02  Frank Ch. Eigler  <fche@redhat.com>
 495
 496         * testsuite/libmudflap.c/pass38-frag.c: Deleted.  -fwritable-strings
 497         is about to become deprecated, and its present handling bugs are
 498         unworthy of fixing.
 499
 500 2003-05-30  Frank Ch. Eigler  <fche@redhat.com>
 501
 502         * testsuite/libmudflap.c/pass38-frag.c: New test for
 503         -fwritable-strings.
 504
 505 2003-05-23  Frank Ch. Eigler  <fche@redhat.com>
 506
 507         * mf-runtime.c (__mf_sigusr1_handle): Call unlocked variant of
 508         __mf_report, asserting reentrant calling context.
 509
 510 2003-05-23  Frank Ch. Eigler  <fche@redhat.com>
 511
 512         * mf-hooks.c (realloc): Correct reentrancy logic.
 513         * testsuite/libmudflap.c/hook-allocstuff.c: New test case.
 514
 515 2003-05-20  Frank Ch. Eigler  <fche@redhat.com>
 516
 517         * mf-hooks.c (LIBMUDFLAPTH_THREADS_MAX): New macro, replaces
 518         PTHREAD_THREADS_MAX.  Update users.
 519         * mf-runtime.c (__mf_usage): Print [active] instead of [default]
 520         for active options.
 521         * testsuite/Makefile.am (all-local): Prime dejagnu site.exp file
 522         with libmudflapth presence indicator.
 523         * testsuite/Makefile.in: Regenerated.
 524
 525 2003-05-16  Frank Ch. Eigler  <fche@redhat.com>
 526
 527         * Makefile.am (AM_CFLAGS): Remove "-ansi".
 528         * configure.in: Remove silly no-pthreads => no-shared logic.
 529         * Makefile.in, configure: Regenerated.
 530         * mf-heuristics.c (__mf_heuristic_check): Remove reentrancy hacks.
 531         * mf-hooks.c (BEGIN_PROTECT, END_PROTECT): Reorganize reentrancy
 532         code.  Count reentrancy events.
 533         (all hook functions): Don't directly manipulate __mf_state variable.
 534         Add TRACE calls to hook functions without them.
 535         * mf-impl.h (LOCKTH): Try to count lock contention events.
 536         (VERBOSE_TRACE, TRACE): Remove reentrancy hacks.
 537         * mf-runtime.c (BEGIN_RECURSION_PROTECT, END_RECURSION_PROTECT):
 538         Reorganize reentrancy code.
 539         (external __mf_ entry points): Use RECURSION_PROTECT mechanism to
 540         identify reentrancy with mutex holding times.
 541         (internal __mfu_ entry points): Remove internal reentrancy code.
 542         (__mf_init): Use ordinary locked calls.
 543         (__mfu_report): Print the two new counts.
 544         * testsuite/lib/libmudflap.exp: Filter out junk ld/pthreads messages.
 545         * testsuite/libmudfap.cth/cthfrags.exp: New test driver.
 546         * testsuite/libmudflap.cth/pass37-frag.c: New pthreads test.
 547         * testsuite/libmudfap.cth/cfrags.exp: Adapt to new libmudflap
 548         option defaults.
 549
 550 2003-05-09  Frank Ch. Eigler  <fche@redhat.com>
 551
 552         * configure.in: Add pthread support, plus glibc and porting hacks.
 553         * Makefile.am (LIBMUDFLAPTH): New conditional, to build -lmudflapth
 554         from objects built into ./pth/.
 555         * mf-runtime.c (__mfu_watch,register,...): Fork new unlocked
 556         functions for internal entry points.  Update callers to pick
 557         locked vs. unlocked variants.
 558         (__mf_resolve_single_dynamic): Extend to support symbol versioning
 559         info coming in from a static data structure.
 560         (*): Reorder miscellaneous declarations to group data vs functions.
 561         (__mf_set_default_options): Simplify.
 562         (__mf_usage): Mention threading status of host executable.
 563         * mf-impl.h: Move max/min decls here.  Reorganize __mf_dynamic
 564         decls to match above.
 565         (LOCKTH, UNLOCKTH): New macros for Big Libmudflap Lock management.
 566         * mf-heuristics.c: Choose between locked/unlocked calls.  Add
 567         some lock/unlock markers.  Remove some unused code.
 568         * mf-hooks: Ditto.
 569         (pthread_create): New hook function.
 570         (__mf_pthread_cleanup, _spawner): New helper functions.
 571         * configure. aclocal.m4, config.h.in, Makefile.in: Regenerated.
 572
 573 2003-05-02  Frank Ch. Eigler  <fche@redhat.com>
 574
 575         * testsuite/libmudflap.c/fail27-frag.c: Add more volatile flags.
 576
 577 2002-04-28  Frank Ch. Eigler  <fche@redhat.com>
 578
 579         * Makefile.am (HOOKOBJS): Add *time related hooks.
 580         * configure.in: Look for pthreads.h header.
 581         * mf-hooks.c (asctime, ctime, gmtime, localtime): New wrappers.
 582         * mf-runtime.c: Begin sketching some pthreads support.
 583         (__mf_usage): Check for -lpthread presence.
 584         (__mf_unregister): Confirm matching unregistration base.
 585         (__mf_find_objects_rec): Reduce unnecessary recursion.
 586         * mf-runtime.h.in: Add "nothrow" attribute to functions.  Add
 587         #defines for new hook functions.
 588         * mf-impl.h: Corresponding changes.
 589         * config.h.in, configure, Makefile.in: Regenerated.
 590
 591 2002-04-27  Diego Novillo  <dnovillo@redhat.com>
 592
 593         * testsuite/libmudflap.c/fail1-frag.c: Add volatile
 594         modifiers to prevent being optimized away.
 595         * testsuite/libmudflap.c/fail10-frag.c: Likewise.
 596         * testsuite/libmudflap.c/fail13-frag.c: Likewise.
 597         * testsuite/libmudflap.c/fail14-frag.c: Likewise.
 598         * testsuite/libmudflap.c/fail15-frag.c: Likewise.
 599         * testsuite/libmudflap.c/fail2-frag.c: Likewise.
 600         * testsuite/libmudflap.c/fail20-frag.c: Likewise.
 601         * testsuite/libmudflap.c/fail3-frag.c: Likewise.
 602
 603 2003-04-15  Frank Ch. Eigler  <fche@redhat.com>
 604
 605         * Makefile.am (libmudflap_la_LIBADD): Remove -ldl.
 606         * configure.in: Look for uintptr_t and -ldl on target.
 607         * mf-runtime.h.in: Adjust uintptr_t declaration logic.
 608         * Makefile.in, aclocal.m4, configure, config.h.in: Regenerated.
 609         * testsuite/Makefile.in: Regenerated.
 610         * mf-runtime.c (__mf_sigusr1_respond): Tweak declaration and calls
 611         for better C compliance.
 612
 613 2003-04-15  Frank Ch. Eigler  <fche@redhat.com>
 614
 615         * mf-hooks.c (MF_VALIDATE_EXTENT): Remove unnecessary reentrancy
 616         prevention code.
 617         * mf-runtime.c (__mf_set_default_options): Turn off
 618         check-initialization.
 619         (__mf_describe_object): Shorten description.
 620         * testsuite/libmudflap.c/fail25-frag.c: Turn on check-initialization.
 621
 622 2003-04-07  Frank Ch. Eigler  <fche@redhat.com>
 623
 624         * mf-hooks.c (__mf_0fn_mmap): Correct return value, as per <rth>.
 625
 626 2003-04-02  Frank Ch. Eigler  <fche@redhat.com>
 627
 628         * mf-hooks.c (BEGIN_PROTECT): Handle startup-time reentrant
 629         calls specially.
 630         (__mf_0fn_malloc ... _munmap): New dummy backup calls.
 631         * mf-impl.h (CALL_BACKUP): New macros.
 632         * mf-runtime.c (__mf_init): Tweak __mf_state during startup.
 633
 634 2003-03-31  Frank Ch. Eigler  <fche@redhat.com>
 635
 636         * Makefile.am (AM_CFLAGS): Remove optimization flags.
 637         (HOOKOBJS): Remove dlopen hook.
 638         (libmudflap_la_LIBADD): Add -ldl.
 639         * mf-hooks.c (dlopen): Remove hook.
 640         * mf-impl.h (__mf_dynamic): Ditto.
 641         * mf-runtime.c (__mf_resolve_dynamics): Ditto.
 642         * Makefile.in: Regenerated.
 643
 644 2003-03-28  Frank Ch. Eigler  <fche@redhat.com>
 645
 646         * configure.in: Check for target gettimeofday, signal, some headers.
 647         * mf-impl.h (__mf_opts): Add new "sigusr1_report" field.  Comment
 648         out inop multi_threaded field.
 649         * mf-runtime.c (options): Handle new "-sigusr1-report" option.
 650         (__mf_set_options): Correct handling of "-help".
 651         (__mf_sigusr1_respond): New function to manage SIGUSR1 response.
 652         (__mf_check, __mf_register, __mf_unregister): Call it.
 653         (__mf_insert_new_object, __mf_unregister): Respect HAVE_GETTIMEOFDAY.
 654         (__mf_report_leaks): Make callable
 655         (__mf_tree_analyze): Traverse in-order.  Accumulate address bit
 656         distribution statistics.
 657         (__mf_adapt_cache): Rewrite shift guessing logic based on address
 658         bit distributions.
 659         * config.h.in, configure: Regenerated.
 660         * testsuite/libmudflap.c/fail27-frag.c: New test.
 661         * testsuite/libmudflap.c/pass36-frag.c: New test.
 662
 663 2003-03-11  Frank Ch. Eigler  <fche@redhat.com>
 664
 665         * mf-runtime.h.in: Tweak.
 666         * Makefile.am, configure.in: Tweak mf-runtime.h generation some more.
 667         Don't use intermediate files nor AC_OUTPUT-time postprocessing.
 668         * Makefile.in, testsuite/Makefile.in, configure: Regenerated.
 669
 670 2003-03-10  Frank Ch. Eigler  <fche@redhat.com>
 671
 672         * configure.in: Tweak generation of mf-runtime.h some more.  It
 673         needs to work from both config.status and configure.
 674         * configure: Regenerated.
 675
 676 2003-03-10  Frank Ch. Eigler  <fche@redhat.com>
 677
 678         * Makefile.am: Reorganize hook file building.  Add auto dependencies.
 679         * configure.in: Tweak generation of mf-runtime.h.
 680         * mf-runtime.h.in: Add new __MF_TYPE_HEAP_I.
 681         * mf-hooks.c (*): Adapt to initialized-heap object type.
 682         * mf-impl.h: Tweak cemetary boundaries.
 683         * mf-runtime.c (__mf_check): Adapt to new initialized-heap object
 684         type.
 685         (__mf_insert_new_object, __mf_register, __mf_unregister): Ditto.
 686         (__mf_describe_object, __mf_report_leaks, __mf_violation): Ditto.
 687         * testsuite/lib/libmudflap.exp (includes): Include build tree.
 688         * testsuite/libmudflap.c/pass{26,5}: Further adapt to initialization
 689         checking.
 690         * testsuite/.../fail{25,26}-frag.c: New tests.
 691         * testsuite/.../pass{32,33,34,35}-frag.c: New tests.
 692         * Makefile.in, configure: Regenerated.
 693
 694 2003-03-05  Frank Ch. Eigler  <fche@redhat.com>
 695
 696         * mf-runtime.c (__mf_set_default_options): Turn on initialization
 697         checking by default.
 698         (__mf_insert_new_object): As a temporary hack, assume that new
 699         objects registered on the stack start out initialized.
 700         * testsuite/libmudflap.c/fail9,pass23,pass[6789]-*: Initialize
 701         heap objects by hand.
 702
 703 2003-03-05  Frank Ch. Eigler  <fche@redhat.com>
 704
 705         Switch to macro-style hooks for str*/mem*/b* functions.
 706         * mf-runtime.h.in (__MF_TYPE_*): Moved some internal values out.
 707         (mem*, str*, b*): Added macro-style hooks for _MUDFLAP case.
 708         * mf-runtime.c: #include config.h to enable glibc backtraces again.
 709         (__mf_set_default_options): Turn off heur_proc_map.
 710         (*): Adapt to to macro-style hook functions.
 711         (__mf_object_dead_head, __mf_object_cemetary): Correct bounds.
 712         (__mf_check, __mf_register, __mf_unregister): Tweak tracing message.
 713         (__mf_violation): Handle __MF_VIOL_WATCH.
 714         * mf-impl.h (__MF_TYPE_*): Moved these internal values here.
 715         (__mf_dynamic): Removed mem*/str*/b* functions.
 716         (TRACE, VERBOSE_TRACE): Add reentrancy locking.
 717         (WRAPPER2): New macro for macro-style hooks.
 718         * mf-hooks.c: Convert mem*/str*/b* functions to simpler
 719         macro-style hooks.
 720         (BEGIN_PROTECT): Tweak tracing vs reentrancy-lock ordering.
 721         * mf-heuristics.c: Adapt to macro-style hook functions.
 722         Correct some comments.
 723         * testsuite/lib/mfdg.exp (dg-test): Simplify result string for
 724         output pattern tests.
 725         * testsuite/libmudflap.c/fail[89]-frag.c: Elaborate output test.
 726         * testsuite/libmudflap.c++/c++frags.exp: Enable non-static tests.
 727
 728 2003-02-28  Frank Ch. Eigler  <fche@redhat.com>
 729
 730         * testsuite/libmudflap.c/fail23-frag.c, pass30-frag.c: New tests
 731         for global array registration.
 732         * testsuite/libmudflap.c++/fail24-frag.cxx, pass31-frag.cxx: Ditto.
 733         * testsuite/libmudflap.c++/c++frags.exp: Tweak -static multilib hack.
 734
 735 2003-02-27  Frank Ch. Eigler  <fche@redhat.com>
 736
 737         * Makefile.am: Add gross make bug workarounds.  Tweaked
 738         SUBDIRS and AM_CFLAGS.
 739         * Makefile.in: Regenerated.
 740
 741 2003-02-26  Frank Ch. Eigler  <fche@redhat.com>
 742
 743         Switch to dejagnu.
 744         * configure.in (AC_PROG_CXX): Don't look for C++ any more.
 745         * Makefile.am (TESTS): Remove simple automake testing.
 746         * configure, Makefile.in: Regenerated.
 747         (SUBDIRS): Include new testsuite/ directory.
 748         * tests/*: Removed all files; moved bulk under:
 749         * testsuite/*: New subdirectory tree.
 750         * testsuite/libmudflap.c/cfrags.exp: New file, C test driver.
 751         * testsuite/libmudflap.c++/c++frags.exp: New file, C++ test driver.
 752         * testsuite/lib/libmudflap.exp: New file, derived from libstdc++.
 753         * testsuite/lib/mfdg.exp: New file, derived from dejagnu.
 754         * testsuite/config/default.exp: New file.
 755         * testsuite/Makefile.am, Makefile.in: New files.
 756
 757 2003-01-29  Frank Ch. Eigler  <fche@redhat.com>
 758
 759         * Makefile.am (TESTS_ENVIRONMENT): Remove redundant "-mode-check".
 760         (TESTS): Add fail22 and pass29 tests.
 761         * mf-runtime.h.in: Change API to take void*/size_t region parameters.
 762         Add new access-type parameter for __mf_check.  Move __MF_VIOL* out.
 763         * mf-impl.h: Corresponding changes.  Update CLAMP* macros for void*
 764         values.  Move __MF_VIOL* here.
 765         * mf-runtime.c (*): Adapt to void*/size_t API in mf-runtime.h.
 766         (check_initialization): New field in __mf_opts.  Default off.
 767         (read_count,write_count): New fields in __mf_object.
 768         (__mf_check): Implement basic initialization checking.
 769         (__mf_insert_new_object): Assume STATIC|GUESS regions are initialized.
 770         (__mf_describe_object): Print new fields.
 771         (__mf_violation): Identify check/read vs. check/write in messages.
 772         * test/pass29-frag.c, test/fail22-frag.c: Basic tests for new
 773         "-check-initialized" mudflap option.
 774         * test/pass25-frag.c, test/fail21-frag.c: Adapt to API changes.
 775         * mf-hooks.c (MF_VALIDATE_EXTENT): Add new access-type parameter.
 776         Drop __FILE__/__LINE__ hack.  Update callers.
 777         (*): Adapt to new mf-runtime.h API.
 778         * Makefile.in: regenerated.
 779
 780 2003-01-24  Frank Ch. Eigler  <fche@redhat.com>
 781
 782         * configure.in: Build mf-runtime.h a more proper way.
 783         * mf-hooks.c (strdup, strndup): Correct reentrancy logic.
 784         * mf-runtime.c (verbose_violations): Turn on by default.
 785         * mf-runtime.h.in: Remove some miscellaneous stuff ...
 786         * mf-impl.h: ... and move it here.
 787         * configure: Regenerated.
 788
 789 2003-01-22  Frank Ch. Eigler  <fche@redhat.com>
 790
 791         * configure.in: Look for C++ compiler.
 792         * test/*-frag.c, mf-driver.c: Reformatted with GNU indent and
 793         fixed type warnings when built with C++.
 794         * test/pass27-frag.cxx, pass28-frag.cxx: New C++ tests.
 795         * Makefile.am (TESTS): Run them.
 796         (*) Add new rules for building and running C++ tests.
 797         (TESTFLAGS): Set new default to avoid libstdc++-v3 shlib issues.
 798         * mf-runtime.h.in: Protect with extern "C".
 799         * Makefile, configure: Regenerated.
 800
 801 2003-01-06  Frank Ch. Eigler  <fche@redhat.com>
 802
 803         Portability improvements.
 804         * configure.in: Look for glibc backtrace headers/functions.
 805         * mf-hooks.c: Don't include <execinfo.h> any more.
 806         * mf-runtime.c (__mf_set_options): Call more stdlib functions
 807         via CALL_REAL.
 808         (__mf_backtrace): Provide alternate baby implementation in
 809         absence of glibc.
 810         * test/mf-driver.c: Portability tweaks.
 811         * acinclude.m4: New file, containing top level libtool.m4.
 812         * aclocal.m4, configure, Makefile.in, config.h.in: Regenerated.
 813
 814 2002-12-19  Frank Ch. Eigler  <fche@redhat.com>
 815
 816         * mf-runtime.h.in (HAVE_UINTPTR_T): Define unconditionally.
 817
 818 2002-11-08  Frank Ch. Eigler  <fche@redhat.com>
 819
 820         * mf-runtime.c (options): Add new "wipe-heap", "wipe-stack"
 821         options.
 822         (__mf_unregister): Implement stack/heap object wiping.
 823         (__mf_set_options): Renamed from __mf_process_opts.
 824         (__mf_uncache_object): Change arg type, correct callers.
 825         * mf-impl.h: Corresponding changes.
 826         * mf-hooks.c (realloc): Save/restore heap-wiping flag.
 827         * mf-runtime.h.in (__mf_set_options): Extend public API.
 828         * test/pass26-frag.c: New test for stack wiping.
 829         * Makefile.am (TESTS): Run it.
 830         * Makefile.in: Regenerated.
 831
 832 2002-11-07  Frank Ch. Eigler  <fche@redhat.com>
 833
 834         * mf-runtime.h.in (__mf_watch, __mf_unwatch): Extend public API.
 835         * mf-runtime.c (__mf_object_t): Add watching_p field.
 836         (__mf_watch_or_not): New function to implement
 837         object watch flagging.
 838         (__mf_watch, __mf_unwatch): New wrappers for above.
 839         (__mf_check, __mf_describe_object): Handle objects with watching_p.
 840         (__mf_count_violation): Enlarge array.
 841         (__mf_uncache_object): Renamed from __mf_remove_old_object.  Don't
 842         unlink object.  Clear cache properly.
 843         (__mf_unregister): Unlink object explicitly before uncaching.
 844         * test/fail21-frag.c, pass25-frag.c: New tests.
 845         * Makefile.in, aclocal.m4: Regenerated.
 846
 847 2002-11-05  Frank Ch. Eigler  <fche@redhat.com>
 848
 849         * test/fail20-frag.c: New test for NULL pointer dereferencing.
 850         * Makefile.am (TESTS): Add it.
 851         * test/pass-stratcliff.c: Add decls of stpcpy.
 852         * configure.in: Test for <stdint.h>.  Generate mf-runtime.h in
 853         build tree from config.h and new file mf-runtime.h.in.
 854         * mf-runtime.h.in: Renamed from mf-runtime.h.  Tweak uintptr_t decl.
 855         * Makefile.in, configure, config.h.in: Regenerated.
 856         * mf-hooks.c: Add #undef for wrapped glibc str*/mem* macros.
 857         * mf-runtime.c (options, __mf_set_default_options): Support new
 858         default "abbreviate" option.
 859         (__mf_object.description_epoch): New field.
 860         (__mf_describe_object): Conditionally abbreviate objects already
 861         displayed in current epoch.  Accept NULL input to increment epoch.
 862         (__mf_fini, __mf_ini): Reset description epoch.
 863         (__mf_register, __mf_unregister, __mf_adapt_cache, __mf_init): Ensure
 864         that NULL pointer slot in lookup cache is invalidated.  Register a
 865         NOACCESS region around NULL.
 866         * mf-impl.h: Corresponding changes.
 867
 868 2002-10-16  Frank Ch. Eigler  <fche@redhat.com>
 869
 870         * test/fail19-frag.c, pass24-frag.c, pass-stratcliff.c: New tests.
 871         * Makefile.am: Run them.  Install mf-runtime.h.
 872         * Makefile.in: Regenerated.
 873         * mf-hooks.c: Add some markers for more missing functions.
 874         * mf-runtime.c (__mf_adapt_cache): Experiment with a utilization-based
 875         statistic to tune tune cache size (mask).
 876
 877 2002-10-01  Frank Ch. Eigler  <fche@redhat.com>
 878
 879         * test/pass23-frag.c: New test for bit_field_ref expressions.
 880         * Makefile.am, Makefile.in: Add new test.
 881         * mf-hooks.c (mmap, munmap): Rewrite to track individual pages.
 882         (MF_VALIDATE_EXTENT): Accept zero-size mem/str operations.
 883         * mf-runtime.c (__mf_init): Register errno global.
 884         (__mf_find_object): Removed function.
 885         (__mf_check): Rewrite logic to support accesses across some
 886         contiguous but distinctly registered objects.
 887         (__mf_remove_old_object): Tolerate cache entries that span
 888         contiguous objects.
 889
 890 2002-09-30  Frank Ch. Eigler  <fche@redhat.com>
 891
 892         * test/pass21-frag.c, pass22-frag.c: New tests: alloca, bitfields.
 893         * Makefile.am, Makefile.in: Run new tests.
 894         * mf-hooks.c (alloca): Correct stack direction logic.
 895
 896 2002-09-26  Frank Ch. Eigler  <fche@redhat.com>
 897
 898         * mf-impl.h (adapt_cache): New option.
 899         * mf-runtime.c (__mf_set_default_options): Set its default value.
 900         Tweak the tree_aging parameter down.
 901         (__mf_check): Maintain separate counter for cache-adaptation.
 902         (__mf_tree_analyze): New function to collect object tree stats.
 903         (__mf_adapt_cache): New function to automate cache parameters.
 904
 905 2002-09-24  Frank Ch. Eigler  <fche@redhat.com>
 906
 907         * mf-heuristics.c (__init_misc, __mf_heuristic_check): Add
 908         hypothetical #if-0'd argv/envp region registration.
 909         * mf-runtime.c (__mf_init): Add kludged form of above.
 910         (*) Add "heur_argv_environ" flag, default on, to govern this.
 911         * mf-impl.h: Corresponding changes.
 912
 913 2002-09-20  Frank Ch. Eigler  <fche@redhat.com>
 914
 915         * test/fail18-frag.c: New test file for NOACCESS regions.
 916         * Makefile.am (TESTS): Add new test.
 917         * Makefile.in: Regenerated.
 918
 919         * mf-heuristics.c (__mf_heuristics_check): Correct deja_vu logic.
 920         * mf-impl.h (tree_aging): Add new mudflap_option, default 1000000.
 921         (optimize_object_tree): Remove unused mudflap_option.
 922         * mf-runtime.h (__MF_TYPE_NOACCESS): New region type.  Add printing
 923         support throughout.  Use .._MAX_CEM for cemetary upper bound.
 924         * mf-runtime.c (__mf_init): Register __mf_* globals as NOACCESS
 925         regions.
 926         (__mf_object): Add new liveness field for use by tree aging.
 927         (__mf_check): Trigger tree aging when needed.
 928         (__mf_age_tree): New function to decay liveness field.
 929         (__mf_find_objects_rec): Use liveness field to rotate tree.
 930         (__mf_insert_new_object): Only provide backtrace for HEAP objects.
 931         (__mf_unregister): Ditto.
 932         (__mf_register): Tweak duplicate-static message.
 933         (__mf_violation: Tweak nearby-object counter printing.
 934
 935 2002-09-16  Frank Ch. Eigler  <fche@redhat.com>
 936
 937         * test/pass20-frag.c: New test file.
 938         * Makefile.am (TESTS): Reorganize.  Add pass20 test.
 939         * Makefile.in: Regenerated.
 940
 941         * mf-impl.h (TRACE_IN, TRACE_OUT): Remove macros.  Update callers.
 942         * mf-hooks.c (BEGIN_PROTECT): Add hook tracing here.
 943         * mf-heuristic.c (__mf_heuristic_check): Track seen /proc/self/map
 944         entries to avoid repeat registration.
 945         * mf-runtime.c (__mf_object_cemetary): Don't bother bury GUESS regions.
 946         (__mf_register, __mf_unregister): Rewrite GUESS handling logic.
 947
 948 2002-09-09  Frank Ch. Eigler  <fche@redhat.com>
 949
 950         * Makefile.am: Create test sources with #include, not cat>>.
 951         * Makefile.in: Regenerated.
 952         * test/buildtest.sh: Removed.
 953         * test/driver.c (abort_handler, main): Be quiet.
 954
 955 2002-09-06  Frank Ch. Eigler  <fche@redhat.com>
 956
 957         * test/pass18-frag.c, pass19-frag.c: New tests.
 958         * Makefile.am (check): Run them.  Rebuild test programs each time.
 959         * Makefile.in: Regenerated.
 960
 961 2002-09-06  Frank Ch. Eigler  <fche@redhat.com>
 962
 963         * mf-runtime.c (__mf_register): Correct SEGV-inducing error in
 964         overlapping object search.
 965         (__mf_violation): Likewise for nearby objects.
 966         Improve nearby-object listing.
 967
 968         cleanup:
 969         * mf-runtime.c, mf-hooks.c: Remove "{{{"/"}}}" folding marks.
 970         * mf-heuristics.c (__mf_heuristic_check): Tweak message.
 971
 972 2002-09-03  Frank Ch. Eigler  <fche@redhat.com>
 973
 974         alloca support:
 975         * Makefile.am (AM_CFLAGS): New definition of needed settings.
 976         (HOOKOBJS): Add alloca-hook.o.
 977         * mf-hooks.c (alloca): New function to implement alloca in libiberty
 978         style.
 979         * mf-runtime.c (__mf_report): Call alloca(0) to flush remaining blocks.
 980         (__mf_backtrace): Reimplement without using alloca.
 981         * Makefile.in: Regenerated.
 982
 983         cleanup:
 984         * mf-hooks.c: Use VERBOSE_TRACE throughout instead of fprintf(stderr).
 985         Correct signedness bugs in length-tracking variables.
 986         * mf-impl.h: Make options unsigned.
 987         (CALL_WRAP): New macro to parallel CALL_REAL().
 988         (DECLARE): Remove erroneous ";" at end.
 989         * mf-runtime.c, mf-hooks.c, mf-heuristics.c: Replace remaining %p
 990         formatting specs with %08lx.  Correct several compiler warnings.
 991
 992 2002-08-28  Frank Ch. Eigler  <fche@redhat.com>
 993
 994         * mf-runtime.c (__mf_violation): Try harder to locate nearby objects.
 995
 996 2002-08-27  Frank Ch. Eigler  <fche@redhat.com>
 997
 998         libmudflap hook breakup:
 999         * Makefile.am (TESTS_ENVIRONMENT): Add ../../gcc to LD_LIBRARY_PATH
1000         for libgcc_s.
1001         (TESTS): Make dependent on libmudflap.
1002         (HOOKOBJS): Break up mf-hooks.o into many little hook objects,
1003         compiled from segments of mf-hooks.c.
1004         * mf-hooks.c: Corresponding changes: wrap each function in
1005         #ifdef/#endif.
1006         * Makefile.in: Regenerated.
1007
1008         Heuristics reorganization:
1009         * mf-heuristics.c (__mf_register_ro_sections, __mf_init_heuristics):
1010         Remove these functions.  Update callers.
1011         (__mf_heuristic_check): Incorporate all the various heuristics.
1012         Encode cacheability/retry judgement into trinary return value.
1013         Separate start-end logic into a separate fallback heuristic.  Only
1014         register relevant /proc/self/map segments.
1015         * mf-impl.h: Corresponding changes.
1016         * mf-runtime.c (__mf_check): Reorganize heuristics fallback logic.
1017         (__mf_init): Don't call __mf_init_heuristics.
1018
1019         Tracing cleanup:
1020         * mf-heuristics.c, mf-runtime.c: Use new MUDFLAP_OPTION
1021         "-verbose-trace" to emit all tracing messages other than those of
1022         basic public api.  Eliminate some duplicate/excessive messages.
1023         * mf-runtime.h: Corresponding changes.
1024
1025 2002-08-27  Graydon Hoare  <graydon@redhat.com>
1026
1027         * mf-impl.h (WRAPPER): Change to create linker aliases for __wrap
1028         and __real when compiled with -DPIC.
1029         * mf-hooks.c (WRAPPER): Change all uses of WRAPPER macro slightly.
1030         * Makefile.am (AUTOMAKE_OPTIONS): Fix LD_LIBRARY_PATH for tests.
1031         * Makefile.in: Regenerate.
1032
1033 2002-08-26  Graydon Hoare  <graydon@redhat.com>
1034
1035         * mf-impl.h: New file, private implementation header.
1036         * mf-runtime.h: Reorganize a bit.
1037         (CLAMPSZ): Fix arithmetic.
1038         (__MF_CACHE_MISS_P): Fix arithmetic.
1039         * mf-runtime.c: Reorganize a bit.
1040         (__mf_dynamic): New structure.
1041         (resolve_single_dynamic): New function.
1042         (__mf_resolve_dynamics): New function.
1043         (__mf_init): Initialize dynamic wrappers.
1044         * mf-hooks.c: Macro-ize __real calls.
1045         Clamp various bits of arithmetic.
1046         Add explicit __mf_check call contexts.
1047         * Makefile.am: Add dependencies on mf-impl.h
1048         * Makefile.in: Regenerate.
1049         * configure.in: Comment out shared override.
1050         * configure: Regenerate.
1051
1052 2002-08-22  Graydon Hoare  <graydon@redhat.com>
1053
1054         * mf-runtime.c (__mf_process_opts): Sanity-check free_queue_length.
1055         (__mf_check): Re-inialize and check heuristics before violation.
1056         (__mf_register): Permit updating pure-guess regions.
1057         * mf-hooks.c (__wrap_free): Correct some free queue logic.
1058         (__wrap_dlopen): New wrapper function.
1059         (__wrap_mmap): New wrapper function.
1060         (__wrap_munmap): New wrapper function.
1061         * mf-heuristics.c (__mf_register_ro_sections): Register *all* regions
1062         which are not stack addresses.
1063         (is_stack_address): New function.
1064         (__mf_init_heuristics): Save and restore state, always initialize with
1065         "starting" state.
1066
1067 2002-08-21  Frank Ch. Eigler  <fche@redhat.com>
1068
1069         * mf-hooks.c (MF_VALIDATE_EXTENT): Rewrite to correct off-by-one
1070         error.  Pass location string.
1071         (wrap_strcpy, wrap_strncpy): Remove extra %s in trace strings.
1072         * mf-runtime.c (options): Add lc-mask, lc-shift options.
1073         (__mf_process_opts): Apply some sanity checking for lc-mask.
1074         (__mf_check, __mf_violation): Take new location-string argument.
1075         Update callers to pass NULL if necessary.
1076         (__mf_backtrace): New smart backtracer function.  Calls replace
1077         several ad-hoc blocks elsewhere.
1078         (__mf_describe_object): Remove bad reentrancy test.  Improve
1079         tracing message.
1080         * mf-runtime.h: Corresponding changes.  Public/private markup.
1081         (__MF_CACHE_MISS_P): New macro.
1082
1083 2002-08-20  Graydon Hoare  <graydon@redhat.com>
1084
1085         * mf-runtime.h: New option: stack_bound (heuristic).
1086         Move some macros out of implementation files.
1087         * mf-runtime.c: New option string: -stack-bound.
1088         Unify recursion protection with hooks.
1089         Add more logging.
1090         (__mf_check): Call __mf_heuristic_check.
1091         (__mf_process_opts): Fix "no-" processing.
1092         * mf-heuristics.c (__mf_heuristic_check): New function.
1093         * mf-hooks.c: Much off-by-one fixing, recursion protection.
1094
1095 2002-08-20  Frank Ch. Eigler  <fche@redhat.com>
1096
1097         Option parsing improvements, region splitting bug fixes:
1098         * mf-heuristics.c (__mf_register_ro_sections): Add warned casts.
1099         * mf-runtime.h (heur_proc_map): New libmudflap option.
1100         * mf-runtime.c (__mf_set_default_options): Set it.
1101         (__mf_usage): Print default values/status.
1102         (__mf_process_opts): Support general "no-" option string prefix.
1103         (__mf_init): Print __mf_usage on unknown-option error.
1104         (__mf_register): Print trace message up front.
1105         Correct region splitting logic for case where a subregion disappears.
1106         Correct memory leak.
1107         (__mf_violation): Make even basic message conditional on option.
1108
1109         Build cleanup:
1110         * Makefile.am (TESTS_ENVIRONMENT): Add -no-heur-proc-map.
1111         (clean-local): New target.
1112         (test/*x rules): Add -g CFLAGS.
1113         (CFLAGS): Add -freorder-blocks.
1114         (MFCONFIG_CFLAGS, INCLUDE): Remove unneeded settings.
1115         * Makefile.in: Regenerated.
1116         * Makefile, mf-config.h: Removed files.
1117
1118 2002-08-16  Graydon Hoare  <graydon@redhat.com>
1119
1120         * mf-runtime.c (__mf_insert_new_object): Factor out of
1121         __mf_register.
1122         (__mf_remove_old_object): Factor out of __mf_unregister.
1123         (__mf_register): Handle guessed regions, splitting
1124         guesses when new registrations arrive.
1125         (__mf_unregister): Do not unregister guesses.
1126         * mf-runtime.h: Move convenience macros around,
1127         declare new option fields. Add __MF_TYPE_GUESS.
1128         * mf-hooks.c (__wrap_*alloc): Use crumple zones.
1129         (__wrap_free): Call __real_free for deferred frees.
1130         * Makefile.am: Add more tests, fix dependency.
1131         * Makefile.in: Regenerate.
1132         * test/pass[13..17]-frag.c: New testcases.
1133         * test/fail[13..17]-frag.c: New testcases.
1134
1135 2002-08-15  Graydon Hoare  <graydon@redhat.com>
1136
1137         * mf-heuristics.c: New file.
1138         * mf-runtime.c (options): Add -trace-calls option.
1139         (__mf_init): Call __mf_init_heuristics.
1140
1141 2002-08-14  Graydon Hoare  <graydon@redhat.com>
1142
1143         * Makefile.am (TESTS): Add testsuite support.
1144         * Makefile.in: Regenerate.
1145         * test/mf-driver.c: New file.
1146         * test/buildtest.sh: New file.
1147         * test/passNN-frag.c: New testcases.
1148         * test/failNN-frag.c: New testcases.
1149
1150 2002-08-14  Graydon Hoare  <graydon@redhat.com>
1151
1152         * mf-hooks.c: Change __real_strlen() to __real_strlen()+1 when
1153         verifying non-size-limited string extents.
1154
1155 2002-08-14  Frank Ch. Eigler  <fche@redhat.com>
1156
1157         * mf-hooks.c: Make __wrap string* functions use __real_str[n]len
1158         instead of plain str[n]len for internal checks.
1159         * mf-runtime.c (__mf_violation): Print optional stack traceback.
1160
1161 2002-08-14  Frank Ch. Eigler  <fche@redhat.com>
1162
1163         * mf-hooks.c: Remove #if-0 around hooks that are now ld-wrapped.
1164
1165 2002-08-13  Graydon Hoare  <graydon@redhat.com>
1166
1167         * mf-runtime.c: Rework configuration to operate on
1168         environment variable options rather than #defines
1169         (__mf_violation): Add simple fork-a-gdb violaiton mode.
1170         (__mf_init): Set static __mf_active_p flag on startup,
1171         to inhibit mudflap wrap-based checking during crt0.s.
1172         * mf-runtime.h: Declare options structure.
1173         * mf-hooks.c: New wrappings for mem*, b*, str*
1174         libc functions (temporarily #if 0-ed out).
1175
1176 2002-08-12  Frank Ch. Eigler  <fche@redhat.com>
1177
1178         * Makefile.am, configure.in: New files.
1179         * Makefile.in, Makefile, configure, config.h.in: New generated files.
1180         * stamp-h.in, aclocal.m4: Ditto.
1181
1182 2002-08-08  Frank Ch. Eigler  <fche@redhat.com>
1183
1184         * Makefile: New file.
1185         * mf-config.h: New file: runtime configuration.
1186         * mf-hooks.c: New file: interposed libc functions.
1187         * mf-runtime.c: New file: bulk of runtime.
1188         * mf-runtime.h: New file: public functions.