From 2f6d1f1be920d156768f7fa17957c782c770ed36 Mon Sep 17 00:00:00 2001 From: Ulrich Drepper Date: Tue, 25 Feb 1997 05:18:05 +0000 Subject: update from main archive 970225 1997-02-24 23:05 Wolfram Gloger * malloc/malloc.c (malloc_get_state): New function. Saves global malloc state to an opaque data structure which is dynamically allocated in the heap. * malloc/malloc.c (malloc_set_state): New function. Restore previously obtained state. * malloc/malloc.h: Add declaration of malloc_get_state() and malloc_set_state(). 1997-02-24 23:27 Ulrich Drepper * sysdeps/libm-ieee754/s_cbrtl.c: Shift B1_EXP value to right position. 1997-02-24 17:38 Ulrich Drepper * misc/error.c: Make error and error_at_line weak aliases of __error and __error_at_line respectively. Suggested by David Mosberger-Tang . * sysdeps/unix/sysv/linux/i386/socket.S: Update copyright. 1997-02-22 11:30 Andreas Schwab * elf/ldd.bash.in: Run the program directly, not as argument to the dynamic linker, if it contains an interpreter segment. * elf/ldd.sh.in: Likewise. * elf/rtld.c (dl_main): In verify mode check whether the dynamic object contains an interpreter segment and exit with 2 if not. 1997-02-23 01:23 Andreas Schwab * Makefile (distribute): Remove nsswitch.h, netgroup.h, mcheck.h and xlocale.h. Make-dist adds them automagically. 1997-02-22 12:25 Andreas Schwab * locale/C-time.c (_nl_C_LC_TIME): Add missing entry for time-era-num-entries. 1997-02-06 13:49 Andreas Schwab * rellns-sh: No need to check for existance of first parameter. 1997-02-24 15:20 Jonathan T. Agnew * glibcbug.in: Don't mention destination on MAIL_AGENT command line to avoid duplicate mail. 1997-02-24 03:51 Ulrich Drepper * Makefile (distribute): Add isomac.c. (tests): Run isomac test. * features.h (__USE_ISOC9X): New macro. * catgets/catgets.c: Don't use global variable `optind'. Instead use result computed by argp_parse. * db/makedb: Likewise. * locale/programs/locale.c: Likewise. * locale/programs/localedef.c: Likewise. * libio/stdio.h: Rewrite. Make it more readable and add comments. * libio/clearerr.c: Remove clearerr_locked alias. * libio/feof.c: Remove feof_locked alias. * libio/ferror.c: Remove feof_locked alias. * libio/fileno.c: Remove fileno_locked alias. * libio/fputc.c: Remove fputc_locked alias. * libio/getc.c: Remove getc_locked alias. * libio/getchar.c: Remove getchar_locked alias. * libio/iofflush.c: Remove fflush_locked alias. * libio/putc.c: Remove putc_locked alias. * libio/putc.c: Remove putchar_locked alias. * stdio-common/printf_fp.c: When number is inifinity print INF or inf depending on case of specifier. Same for NaN where NAN or nan is printed. Specified in ISO C 9X. * misc/sys/cdefs.h (__restrict): Define to empty string for now. * stdio/stdio.h: Add __restrict to prototypes where necessary. * libio/stdio.h: Likewise. * stdlib/stdlib.h: Likewise. * string/string.h: Likewise. * time/time.h: Likewise. * wcsmbs/wchar.h: Likewise. * stdlib/strtod.c: Change to recognize INF, INFINITY, NAN, and NAN(...). * sysdeps/ieee754/huge_val.h: Define HUGE_VALF and HUGE_VALL instead of HUGE_VALf and HUGE_VALL. * stdlib/strtof.c (FLOAT_HUGE_VAL): Use standard name HUGE_VALF instead of HUGE_VALf. * wcsmbs/wcstof.c: Likewise. * stdlib/strtold.c (FLOAT_HUGE_VAL): Use standard name HUGE_VALL instead of HUGE_VALl. * wcsmbs/wcstold.c: Likewise. * sysdeps/posix/gai_strerror.c: Use size_t for counter variable to avoid warning. * wcsmbs/Makefile (routines): Add wcscasecmp and wcsncase. * wcsmbs/wchar.h: Add prototypes for wcscasecmp and wcsncase. * wcsmbs/wcscasecmp.c: New file. * wcsmbs/wcsncase.c: New file. * stdlib/strtol.c: Define wide character quad word functions as wcstoll and wcstoull and normal versions as strtoll and strtoull. * wcsmbs/wchar.h: Add prototypes for wcstoll and wcstoull. * wcsmbs/wcstoq: Renamed to wcstoll.c. * wcsmbs/wcstouq: Renamed to wcstoull.c. * wcsmbs/wcstoll.c: Renamed from wcstoq.c. Make wcstoq a weak alias of wcstoll. * wcsmbs/wcstoull.c: Renamed from wcstouq.c. Make wcstouq a weak alias of wcstoull. * wcsmbs/Makefile (routines): Replace wcstoq and wcstouq by wcstoll and wcstoull respectively. * stdlib/strtoq.c: Rename to strtoll.c. * stdlib/strtouq.c: Rename to strtoull.c. * stdlib/strtoll.c: Renamed from strtoq.c. Make strtoq a weak alias of strtoll. * stdlib/strtoll.c: Renamed from strtouq.c. Make strtouq a weak alias of strtoull. * stdlib/Makefile (routines): Replace strtoq and strtouq by strtoll and strtoull respectively. * stdio-common/vfscanf.c: Don't use __strtoq_internal and __strtouq_internal but instead __strtoll_internal and __strtoull_internal respectively. * stdlib/stdlib.h (strtoq): Use __internal_strtoll in inline version. (strtouq): Similar with __internal_strtoull. * wcsmbs/wchar.h (wcstoq): Use __internal_wcstoll in inline version. (wcstouq): Similar with __internal_wcstoull. 1997-02-23 04:38 Ulrich Drepper * stdlib/strtol.c (STRTOL): It is not illegal to parse a minus sign in the strtouXX functions. The results gets simply negated. * stdio-common/tstscanf.c: Add testcase for above case. * stdlib/tst-strtol.c: Correct tests. * manual/stdio-fp.c: New file. Generate output for example program in stdio.texi. * stdio-common/Makefile (routines): Add printf_fphex. * stdio-common/vfprintf.c: Add handling of %a and %A specifier. * stdio-common/printf_fphex.c: New file. Implement %a and %A specifier. 1997-02-22 03:01 Ulrich Drepper * sysdeps/unix/sysv/linux/timebits.h (CLK_TCK): Don't defined if __STRICT_ANSI__. * math/math.h: Prevent definition of struct exception when using C++. 1997-02-22 01:45 Ulrich Drepper * sysdeps/unix/syscalls.list: Dup takes only one argument. Reported by Greg McGary. 1997-02-21 00:22 Miles Bader 1997-02-20 01:28 Miles Bader 1997-02-19 13:56 Miles Bader 1997-02-18 15:39 Miles Bader 1997-02-17 10:58 Miles Bader 1997-02-15 10:23 Miles Bader (mutex_lock, mutex_unlock, mutex_trylock): Defined in terms of __mutex_*. (mutex_t): Type removed & replaced by new macro. (tsd_key_t): Typedef to int instead of pthread_key_t. (tsd_key_create, tsd_setspecific, tsd_getspecific): New macros. (__pthread_initialize): New macro, work around assumption of pthreads. * sysdeps/mach/hurd/i386/init-first.c (__libc_argv, __libc_argc): __hurd_sigthread_stack_end, __hurd_sigthread_stack_variables, __hurd_threadvar_max, __hurd_threadvar_stack_offset, __hurd_threadvar_stack_mask): Variables removed. 1997-02-14 14:07 Miles Bader * hurd/hurd.h (_hurd_pids_changed_stamp, _hurd_pids_changed_sync): 1997-02-24 17:06 Geoffrey Keating * sysdeps/unix/sysv/linux/accept.S (NARGS): Describe number of arguments taken, for sysdeps/unix/sysv/linux/powerpc/socket.S. * sysdeps/unix/sysv/linux/bind.S: Likewise. * sysdeps/unix/sysv/linux/connect.S: Likewise. * sysdeps/unix/sysv/linux/getpeername.S: Likewise. * sysdeps/unix/sysv/linux/getsockname.S: Likewise. * sysdeps/unix/sysv/linux/getsockopt.S: Likewise. * sysdeps/unix/sysv/linux/listen.S: Likewise. * sysdeps/unix/sysv/linux/recv.S: Likewise. * sysdeps/unix/sysv/linux/recvfrom.S: Likewise. * sysdeps/unix/sysv/linux/recvmsg.S: Likewise. * sysdeps/unix/sysv/linux/send.S: Likewise. * sysdeps/unix/sysv/linux/sendmsg.S: Likewise. * sysdeps/unix/sysv/linux/sendto.S: Likewise. * sysdeps/unix/sysv/linux/setsockopt.S: Likewise. * sysdeps/unix/sysv/linux/shutdown.S: Likewise. * sysdeps/unix/sysv/linux/socketpair.S: Likewise. 1997-02-15 04:51 Ulrich Drepper --- malloc/malloc.c | 162 ++++++++++++++++++++++++++++++++++++++++++++++++++++++-- 1 file changed, 159 insertions(+), 3 deletions(-) (limited to 'malloc/malloc.c') diff --git a/malloc/malloc.c b/malloc/malloc.c index 0380527f64..6b4fc72b20 100644 --- a/malloc/malloc.c +++ b/malloc/malloc.c @@ -19,7 +19,7 @@ write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ -/* V2.6.4-pt2 Sat Dec 14 1996 +/* V2.6.4-pt3 Thu Feb 20 1997 This work is mainly derived from malloc-2.6.4 by Doug Lea , which is available from: @@ -874,6 +874,8 @@ extern Void_t* sbrk(); #define mALLOC_STATs __malloc_stats #define mALLOC_USABLE_SIZe __malloc_usable_size #define mALLOC_TRIm __malloc_trim +#define mALLOC_GET_STATe __malloc_get_state +#define mALLOC_SET_STATe __malloc_set_state #else @@ -889,6 +891,8 @@ extern Void_t* sbrk(); #define mALLOC_STATs malloc_stats #define mALLOC_USABLE_SIZe malloc_usable_size #define mALLOC_TRIm malloc_trim +#define mALLOC_GET_STATe malloc_get_state +#define mALLOC_SET_STATe malloc_set_state #endif @@ -912,7 +916,11 @@ size_t mALLOC_USABLE_SIZe(Void_t*); void mALLOC_STATs(void); int mALLOPt(int, int); struct mallinfo mALLINFo(void); -#else +Void_t* mALLOC_GET_STATe(void); +int mALLOC_SET_STATe(Void_t*); + +#else /* !__STD_C */ + #ifndef _LIBC void ptmalloc_init(); #endif @@ -929,7 +937,10 @@ size_t mALLOC_USABLE_SIZe(); void mALLOC_STATs(); int mALLOPt(); struct mallinfo mALLINFo(); -#endif +Void_t* mALLOC_GET_STATe(); +int mALLOC_SET_STATe(); + +#endif /* __STD_C */ #ifdef __cplusplus @@ -3775,6 +3786,144 @@ int mALLOPt(param_number, value) int param_number; int value; +/* Get/set state: malloc_get_state() records the current state of all + malloc variables (_except_ for the actual heap contents and `hook' + function pointers) in a system dependent, opaque data structure. + This data structure is dynamically allocated and can be free()d + after use. malloc_set_state() restores the state of all malloc + variables to the previously obtained state. This is especially + useful when using this malloc as part of a shared library, and when + the heap contents are saved/restored via some other method. The + primary example for this is GNU Emacs with its `dumping' procedure. + `Hook' function pointers are never saved or restored by these + functions. */ + +#define MALLOC_STATE_MAGIC 0x444c4541l +#define MALLOC_STATE_VERSION (0*0x100l + 0l) /* major*0x100 + minor */ + +struct malloc_state { + long magic; + long version; + mbinptr av[NAV * 2 + 2]; + char* sbrk_base; + int sbrked_mem_bytes; + unsigned long trim_threshold; + unsigned long top_pad; + unsigned int n_mmaps_max; + unsigned long mmap_threshold; + int check_action; + unsigned long max_sbrked_mem; + unsigned long max_total_mem; + unsigned int n_mmaps; + unsigned int max_n_mmaps; + unsigned long mmapped_mem; + unsigned long max_mmapped_mem; +}; + +Void_t* +mALLOC_GET_STATe() +{ + mchunkptr victim; + struct malloc_state* ms; + int i; + mbinptr b; + + ptmalloc_init(); + (void)mutex_lock(&main_arena.mutex); + victim = chunk_alloc(&main_arena, request2size(sizeof(*ms))); + if(!victim) { + (void)mutex_unlock(&main_arena.mutex); + return 0; + } + ms = (struct malloc_state*)chunk2mem(victim); + ms->magic = MALLOC_STATE_MAGIC; + ms->version = MALLOC_STATE_VERSION; + ms->av[0] = main_arena.av[0]; + ms->av[1] = main_arena.av[1]; + for(i=0; iav[2*i+2] = ms->av[2*i+3] = 0; /* empty bin (or initial top) */ + else { + ms->av[2*i+2] = first(b); + ms->av[2*i+3] = last(b); + } + } + ms->sbrk_base = sbrk_base; + ms->sbrked_mem_bytes = sbrked_mem; + ms->trim_threshold = trim_threshold; + ms->top_pad = top_pad; + ms->n_mmaps_max = n_mmaps_max; + ms->mmap_threshold = mmap_threshold; + ms->check_action = check_action; + ms->max_sbrked_mem = max_sbrked_mem; +#ifdef NO_THREADS + ms->max_total_mem = max_total_mem; +#else + ms->max_total_mem = 0; +#endif + ms->n_mmaps = n_mmaps; + ms->max_n_mmaps = max_n_mmaps; + ms->mmapped_mem = mmapped_mem; + ms->max_mmapped_mem = max_mmapped_mem; + (void)mutex_unlock(&main_arena.mutex); + return (Void_t*)ms; +} + +int +#if __STD_C +mALLOC_SET_STATe(Void_t* msptr) +#else +mALLOC_SET_STATe(msptr) Void_t* msptr; +#endif +{ + struct malloc_state* ms = (struct malloc_state*)msptr; + int i; + mbinptr b; + + ptmalloc_init(); + if(ms->magic != MALLOC_STATE_MAGIC) return -1; + /* Must fail if the major version is too high. */ + if((ms->version & ~0xffl) > (MALLOC_STATE_VERSION & ~0xffl)) return -2; + (void)mutex_lock(&main_arena.mutex); + main_arena.av[0] = ms->av[0]; + main_arena.av[1] = ms->av[1]; + for(i=0; iav[2*i+2] == 0) + first(b) = last(b) = b; + else { + first(b) = ms->av[2*i+2]; + last(b) = ms->av[2*i+3]; + if(i > 0) { + /* Make sure the links to the `av'-bins in the heap are correct. */ + first(b)->bk = b; + last(b)->fd = b; + } + } + } + sbrk_base = ms->sbrk_base; + sbrked_mem = ms->sbrked_mem_bytes; + trim_threshold = ms->trim_threshold; + top_pad = ms->top_pad; + n_mmaps_max = ms->n_mmaps_max; + mmap_threshold = ms->mmap_threshold; + check_action = ms->check_action; + max_sbrked_mem = ms->max_sbrked_mem; +#ifdef NO_THREADS + max_total_mem = ms->max_total_mem; +#endif + n_mmaps = ms->n_mmaps; + max_n_mmaps = ms->max_n_mmaps; + mmapped_mem = ms->mmapped_mem; + max_mmapped_mem = ms->max_mmapped_mem; + /* add version-dependent code here */ + (void)mutex_unlock(&main_arena.mutex); + return 0; +} + + + #if defined(_LIBC) || defined(MALLOC_HOOKS) /* A simple, standard set of debugging hooks. Overhead is `only' one @@ -4048,12 +4197,19 @@ weak_alias (__libc_mallopt, __mallopt) weak_alias (__libc_mallopt, mallopt) weak_alias (__malloc_stats, malloc_stats) weak_alias (__malloc_usable_size, malloc_usable_size) weak_alias (__malloc_trim, malloc_trim) +weak_alias (__malloc_get_state, malloc_get_state) +weak_alias (__malloc_set_state, malloc_set_state) #endif /* History: + V2.6.4-pt3 Thu Feb 20 1997 Wolfram Gloger (wmglo@dent.med.uni-muenchen.de) + * Added malloc_get/set_state() (mainly for use in GNU emacs), + using interface from Marcus Daniels + * All parameters are now adjustable via environment variables + V2.6.4-pt2 Sat Dec 14 1996 Wolfram Gloger (wmglo@dent.med.uni-muenchen.de) * Added debugging hooks * Fixed possible deadlock in realloc() when out of memory -- cgit 1.4.1