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Diffstat (limited to 'mdk-stage1/dietlibc/CHANGES')
| -rw-r--r-- | mdk-stage1/dietlibc/CHANGES | 911 |
1 files changed, 911 insertions, 0 deletions
diff --git a/mdk-stage1/dietlibc/CHANGES b/mdk-stage1/dietlibc/CHANGES new file mode 100644 index 000000000..de4f88c3e --- /dev/null +++ b/mdk-stage1/dietlibc/CHANGES @@ -0,0 +1,911 @@ +0.22: + fix i386 libm + fix netinet/ip_icmp.h (Rui Prior) + make strings.h susv3 compliant (Gunnar Ritter) + remove stdio dependence in abort + fix truncate64, ftruncate64 (Luc Van Oostenryck and Yuri Kozlov) + fix and improve erand48() (Luc Van Oostenryck) + fix realpath for non-existant directories (Gergely Nagy and Gerrit Pape) + fix DNS timeout and IPv6 socket reuse + strtoul now accepts "-1" as well (Thomas Ogrisegg) + add i386 strcasecmp and __ltostr (Thomas Ogrisegg) + add killpg prototype (Luc Van Oostenryck) + remove some compiler warnings (Luc Van Oostenryck) + better rand() from Knuth's TAOCP (Luc Van Oostenryck) + fix unified x86_64 unified syscall 64-bit return value issue (Gwenole) + the getdents64 emulation was broken and repairing it opened a can of + worms. So I ripped it out. I also changed the readdir64 emulation + to work if there is no getdents64. + fix ia64 start.S (Thanks to Volker Birk for an account on his ia64 box) + many ia64 fixes (waitpid, nice, fork, vfork, time, utime ...) + More fixes from Gwenole (printf %p only printed the last 32 bits, I + botched the getdents64 #ifdefs, we violated the x86_64 ABI) + change signal() to do as glibc does + remove a few more warnings + add new 2.5 syscall #defines + add epoll_create, epoll_ctl and epoll_wait + the new x86 syscall numbers exceed 255, breaking our %al optimization + I worked around it with conditional assembly in cpp macros. Ugh. + more MIPS fixes (the stoned MIPS ABI for restartable syscalls expects + the instruction before the syscall to be a load immediate) + fix fread() from a pipe (oops, tried to lseek) + #define _POSIX_VDISABLE in termios.h (Laurent Bercot) + two *printf fixes (Gernot Tenchio) + add nan and +-inf handling in __dtostr + add _SC_NGROUPS_MAX support to sysconf (Felix J. Ogris) + make assert() use expect(), slight optimization + add i386 vfork (Thomas Ogrisegg) + fix SA_NODEFER on sparc (Gerrit Pape, Thomas Bader) + fix sin, cos and __dtostr (Gernot Tenchio) + add /dev/epoll ioctl constants to sys/ioctl.h + add linux/eventpoll.h for /dev/epoll + fix lseek64 on 64-bit architectures + Olaf: fix x86_64 start-code (we have reg-args) + fixing some broken macros in sparc32-code (.udiv,.urem) + adding strndup (GNU Extension) + fix glob strncpy (R.L. Horn) + fix regfree (Uwe Ohse) + fix puts in full stdio mode (would omit \n) + fix wrong types on powerpc, broke *stat (Gerrit Pape) + allow more than 64k in i386 memchr (Karsten Scheibler) + make strftime work it WANT_TZFILE_PARSER is not set (Gwenole Beauchesne) + build parisc on parisc64, change libgcc link order on sparc (Gerrit Pape) + +0.21: + use gcc's size_t, ptrdiff_t and wchar_t types (Olaf) + use -G 8 on MIPS to reduce code size (Johannes Stezenbach) + add munlock (Jens Låås) + argh, atexit fell victim to bit rot (or maybe Olaf) + add WANT_INET_ADDR_DNS to make gethostbyname not look up IP numbers + but use them to fill in the struct hostent directly. + signal is now a correct signal (Olaf) + read optimizer cflags for diet -Os gcc from ~/.diet/gcc, overriding + the built-in defaults. + add file "SECURITY". I will document design tradeoffs that have + security implications there. + fixed regex LINEEND condition + add .size directive to i386 syscalls + shove a few more bytes off the i386 socket calls + setjmp, longjmp and clone for x86_64 are now implemented but not tested (Olaf) + fix sparc signals + +0.20: + calloc was botched + umount and stime for x86_64 (Gwenole Beauchesne) + some malloc fixes for very big numbers (Enrico Scholz, me) + x86_64 unified syscall did not preserve rbx violating ABI (Gwenole) + realpath fix if path did not contain a slash (Gwenole) + add ucontext + add asm/statfs.h to work around people using <linux/fs.h> + +0.19: + current gcc cvs makes __thread a keyword (Eric Troan) + be more strict regarding hostile DNS packets (me) + fix ia64 compile problems (Gerrit Pape) + make killpg a function and not a macro (broke bash 2.05b) + fix ia64 start code and unified syscall (me) + add sparc/strlen.S from Thomas Ogrisegg + add more space to ARM __jmp_buf in setjmp.h (Andre) + fix libcompat/syscall.S (did't compile on arm) + add integer overflow fix in xdr_array after bugtraq advisory (me) + fix x86_64 socket calls and mmap (and some more) (Gwenole Beauchesne) + add calloc integer overflow fix after RUS-CERT advisory (me) + add fread and fwrite integer overflow fix (me) + +0.18: + add stpcpy (from Thomas Ogrisegg) + check in mktime fix (from Luc Van Oostenryck) + add libm2.s from contrib to i386 (oops, how long has it been sitting + there?) + add truncate64 and ftruncate64 and prototype for truncate (only had ftruncate) + Michal Ludvig ported the diet libc to the x86_64 architecture (the + upcoming AMD Hammer chips!). You can't even buy the chips yet and + the diet libc already supports it! Amazing ;-) + Michal's patch also fixed several of the outstanding warnings. Thanks! + Andre sent a patch to add ARM profiling. He says it does not work + yet, but it's a start. + added getdents64 backwards compatibility and include it in large file + support #defines + perror now checks if the message is NULL like glibc (Thomas Ogrisegg) + ftell did not take ungetc into account (Kevin Ryde through Debian). + Thomas Ogrisegg sent a port to IA64! + sigaddset, sigdelset and setismember segfaulted for signal 0 (Gunnar Ritter) + Enrico Scholz reported several bugs in the header files. + change __malloc__ to __attribute_malloc__ + add pa-risc socketcall (but see TODO) (Felix J. Ogris) + fix *rand48 initialization (Kevin Ryde) + fnmatch infinite loop fix (Piotr Esden-Tempski) + make signal() into a sigaction wrapper function + add memrchr (Emil) + remove __attribute__((const)) from getpid() (Yuri Kozlov) + make getserv* also work if proto is NULL (Jens Låås) + now clone on parisc works (Thomas Ogrisegg) + getopt* fix from Thomas Walpuski + add syscall() to libcompat (Thomas Ogrisegg) + fix strncpy and strrchr i386 assembly versions for dynamic linking + (John K. Hohm) + allow short option grouping in getopt* (Ralf Wildenhues) + make the DNS resolver IPv6 transport capable (WANT_IPV6_DNS) + mention -v in diet.1 (Bryan Henderson) + auto-detect gcc 3 on i386 and remove compiler option warnings + putenv tweak (Thomas Ogrisegg) + add missing socket syscalls for PA-RISC and IA64 (Thomas Ogrisegg) + add cpio.h and tar.h (Thomas Ogrisegg) + change opendir/readdir/closedir from malloc to mmap (Thomas Ogrisegg) + cleanups from Florian LaRoche + +0.17: + fix several bugs in getservent_r + Gunnar Ritter reported the following: + moved tcgetpgrp and tcsetpgrp to unistd.h + adjusted lstat->lstat64 #define to make it work with function pointers + move __dietlibc__ #define from features.h to diet + Thomas Ogrisegg sent x86 memccpy and strncpy routines and introduced + an dietfeatures.h #define WANT_FULL_POSIX_COMPAT + Thomas also sent me profiling support (so far only on x86, but + profiling/PORTING describes what needs to be done for other + architectures)! + add contrib/dprof.c, also from Thomas. + Andreas Krennmair sent a patch to add the BSD regex interface to + libcompat + Andre noticed that __dtostr never sets first to false. Oops! + Andre has provided a largely untested patch that seems to fix the problem. + Igor Gilitschenski sent a patch for the "%8.7lx" issue. + abort did not flush all stdio streams + fix some nasty regular expression bugs + write a stupid malloc checker (contrib/debug-realloc.c) to help me + debug my regular expressions. Please read contrib/debug-realloc.txt + our i386 memchr,memcmp were broken for the count=0 case + fix DNS domain search + i386 memccpy exchanged esi and edi :-( I should do more checks before + accepting external code... + +0.16: + "diet -v" or "diet -Os" segfaulted without further arguments. + Andre found two very embarassing bugs in my four lines of md5 glue. + I need to get more sleep. + Thanks Ogrisegg found that ptrace does not work as documented and + provided a wrapper that emulates the glibc behaviour. + Dirk Engling saved 8 bytes and 4 cycles in the ARM clone() + fix ptrace.h for S/390 and ARM + provide a PORTING document so we don't lose track of which file need + to be touched to port the diet libc to a new platform. + remove a few warnings + provide a prototype for usleep. + make __dtostr work on ARM by using long instead of long long. + Idea by Dirk Engling. + fix an argument counting bug in *scanf (Thomas Ogrisegg) + Forgot an #endif in asm/sigcontext.h (Mike Castle) + Kurt Garloff sent in patches to + fix struct termios on non-x86 architectures + printf("%+05d\n",500) was broken (Raimar Falke told me, Olaf fixed it) + create libcompat.a (and move daemon to it) + add getdelim and getline + *printf now recognize 'z' integer flag (and ignore it) + Dirk Engling provided a strcpy.S for ARM. + Olaf: fixed *scanf familie. It hadn't wored with "long long". + Hans Lermen fixed i386/getenv.S + diet -Os no longer discards -fpic and -fno-pic + fix i386 rand/random to use correct RAND_MAX (thanks, Jaroslav + Macodiseas) + sys/ipc.h now includes sys/types.h + Olaf: started to make the sparc64 port + scandir should not sort if compar() is NULL (reported by Andrea Marrosu) + +0.15: + vfork sucks. I reverted to the old behavior where vfork==fork. + fix bsearch (and remove i386 assembly bsearch, needs to be redone). + Thanks Ogrisegg sent a patch to make the PA-RISC unified syscall + thread-safe! + remove vfork and add alarm to dynamic syscalls. + fix diet-dyn to link in dyn_dstop.o and not dyn_stop.o. + The MD5 code generated unaligned accesses when passed an unaligned + pointer on little endian ARM and MIPS. + MIPS unified syscall didn't compile anymore. + Put up new mipsel target to cross compile for little endian mips. + The mips target will again explicitly set endianness to big endian. + Compiling natively on a MIPS box should not touch the endianness. + Duh, when we removed return0, we broke tzset when the time zone parser + was disabled. Uwe Ohse noticed this. Thanks! + Fix gethostbyname to match host names case insensitively in /etc/hosts. + Oops, this was reported 6 weeks ago but I overlooked the email. + Thanks, Denis Rachal! + vsnprintf's zero termination was broken. + Uwe Ohse found a few more bugs: + Remove WANT_BUGGY_GLIBC_STRSEP. The Linux man page is broken, glibc + does it correctly. + Make inet_aton use strtoul instead of strtol + fdopen would close the file descriptor if it could not malloc the + buffer. + strftime updates. + Make _FILE_OFFSET_BITS includes -Wundef clean + Andre found a typo in endian.h for big endian mips + Ryan told me that fmod was not included in libm. Oops. + strstr(whatever,"") returned NULL, not whatever. Found by a new test + suite entry for strstr that I wrote. + Thomas Ogrisegg suggested or sent patches for the following: + add <asm/sigcontext.h> for profiling support. + make strncpy a #define in string.h to save a few bytes. + an i386 assembler getenv implementation (roughly half the size) + add grantpt, ptsname, unlockpt + add a getenv test suite entry. + Andre contributed an ARM assembler md5 implementation and he fixed mmap + on ARM. + add glibc macro names in sys/reboot.h. Mentioned by Laurent G. Bercot + getservent_r did not parse lines without aliases. Thanks, Jaroslav + Macodiseas! + fix MIPS start code (argv[0] was always corrupt) + removed annoying -Wconversion gcc switch + add -v to diet.c and fix MIPS CFLAGS in diet. Thanks, Johannes Stezenbach + Kurt Garloff sent these diffs: + add fdatasync (and make it a pthread cancellation point) + numerous alpha issues, like using .quad instead of .long for + offsets, change strip to -strip in Makefile (so a failing strip does + not abort the make), try to be more friendly to the gcc 2.96 that + SuSE 7.1 AXP ships with. + +0.14: + fix brk again (missing __brk, trivial oversight) + a new i386/atol.S that is 4 bytes smaller (and faster, too!). Thanks, + Thomas Ogrisegg! + Thomas also contributed a PA-RISC port including testandset, so + libpthread will work once we implement clone! Great work, Thomas. + made the fake locale more believable. + If you need gettext, use http://www.ca.postgresql.org/~petere/gettext.html + moved _exit into the unified syscall on x86. + Uwe Ohse found many more bugs: + getpass EINTR handling, ttyname, sysconf_cpus with SLASH_PROC_OK, + liblatin1 was more or less completely broken if you gave it chars as + arguments, not ints (signedness). execvp had a buffer overflow in + case a PATH element exceeded PATH_MAX, but it's not a security + problem since setuid programs need to set their path to some known + value anyway. + hasmntopt did not work with foo=bar style options + Uwe also improved ftw's stack usage. + Put movl instead of popl rationale in comment in i386/unified.S since + three people have suggested saving a few bytes with popl now ;) + I discovered __attribute__((malloc)) and started using it. For gcc 3, + it improves the optimizer when functions return malloced pointers. + Steven Rostedt pointed out that my setvbuf was broken with regard to + size==0 and sent a patch to fix it. + Thomas Ogrisegg made setenv smaller. + Olaf: implemented the parisc clone and an atomic testandset, modified the + libpthread to respect the parisc UPgrowing stack. still non functional, + because the unified syscall uses errno :( + tcgetospeed read from the wrong termios field. Thanks, Gunnar Ritter! + Fixed asprintf (relied on vsnprintf(NULL,...) to return length but + don't write anything which was no longer the case. It also + allocated one byte unnecessarily, which Uwe Ohse found. + Fix ttyname (readlink does not \0-terminate, forgot to do that). + +0.13: + add readdir64 and automatic mapping if _FILE_OFFSET_BITS == 64 + make diet not include the linker safeguard stuff when preprocessing + Olaf: port to S/390! + me: fix vfork (it was put into dietlibc.a twice) + res_query did not initialize last + diet (not diet-dyn, of course) now adds -static to the gcc command line + fixed fflush on input streams (tic from ncurses exposed this) + duh, there is an alarm system call, too, so we use it and not setitimer + fix comparison in gmtime_r that caused Jan 1 to be converted to Dec 32. + rewrote __dtostr (it also has one more argument now) + Thanks to Erik Troan for bringing these to my attention: + make putenv behave like glibc (putenv("HOME") == unsetenv("HOME")) + fix strncat for the case where n == 0 (security implications?) + fix bsearch (it didn't find the very last element in the array, same + bug in both the C and the i386 assembly version). + fixed FNM_PATHNAME in fnmatch + fix brk (the syscall was documented incorrectly in the Linux man page) + Thanks, Thomas Ogrisegg! + added negated character classes to fnmatch (not required by POSIX) + make the utmp routines open utmp read-only if read-write doesn't work. + remove syscalls.c directory, it is obsolete now with unified syscalls + +0.12: + more contributions from Frank Klemm. + iconv can now do UCS-2, too. + Imported several x86 assembly routines from Wouter van Kleunen. + Lots of bug fixes, and several more i386 specific versions of common + routines to make them smaller. + add memmem (a GNU extension that looks useful) + several changes from Michal Ludvig: inttypes.h gets C99 macros, + add pivot_root syscall, %n for *scanf. + add adjtimex (thanks, Laurent BERCOT) + add Frank Klemm's optimized md5 + add -Os option to diet (see diet.1). + several IPv6 constants and HZ were missing, thanks Johannes Kloos. + add 32-bit uid/gid syscalls. + add rand48 (thanks, Johannes Kloos) + fixed a lot of bugs in getopt* (thanks, Johannes) + add strxfrm and tweak limits.h. glib-1.3.8 now compiles without changes. + add a few more module syscalls. modutils-2.4.9 now compiles without changes. + fix gethostent alias list termination. Major oops. + add execle and two DNS constants (from Johannes Kloos). + opendir did not close-on-exec (thanks, Laurent Bercot). + DNS will now properly signal errors and set h_errno. + A few more cleanups (thanks, Andreas Jabs and Matthias Andree). + Added an uber-cool linker safeguard feature! Idea by Matthias Andree. + If you enable WANT_SAFEGUARD in dietfeatures.h, diet will include an + external reference to a symbol that is only in the diet libc. So, + when you accidentally link a diet libc compiled object file against + glibc, the linker will barf. This will bloat your object files, but + you can remove all the references with "strip -R .note" from + the binaries in the end (which you should do anyway). + fix ARM unified syscall (select did not work). + add getpwent_r ala glibc and replace getpwent + do the same for getgrent and getspent + remove entlib (new code is smaller) + rewrite getserv* to use parselib (and provide ..._r, too) + add getpwnam_r and getpwuid_r + rewrite getproto* to use parselib (and protive ..._r, too) + Olaf muddled with the dynamic linker. It's a clean-room + implementation in the sense that it once worked for Olaf in a clean + room ;) + add if_nameindex and if_freenameindex. + fixed arm unified syscalls to work with current binutils (; is no + longer a line separator but starts a comment, switched to .macro) + changed all st_[cma]time types to signed long so comparisons against + LONG_MIN will work correctly. (GNU tar does this) + fixed two bugs regarding ungetc. + add getusershell, setusershell, endusershell (for vs_ftpd) + add prctl, dirfd (also for vs_ftpd) + fixed strftime (was completely hosed) + added real make install target + +0.11: + fix major oops in DNS routines (only with WANT_FULL_RESOLV_CONF enabled). + fix vsscanf bug (Thanks, David Chappell). + add floor, ceil and memchr prototypes. + add __builtin_expect and expect #defines for gcc versions below 3.0 + cleaner errno vs __errno_location handling + add placeholder iconv (iconv_open will always return EINVAL) + try to remove kernel 2.4 header dependency in IPv6 sockaddr_in6 + initialization of getaddrinfo. + fix vsnprintf %X (printed lower case) + I wrote a new getopt. It appears to actually work (it is POSIX + compliant, it does not sort argv like the GNU version) and is only + a little over 300 bytes on x86. + Guillaume Cottenceau just wrote me that strncat should be even more + broken than it already is: it should append n bytes AND THEN \0! + I wonder how many programmers have produces off-by-one errors here... + Fix regexec offset return. autoconf now believes that diet libc has + POSIX regular expressions. + Fix fnmatch (a/b/* matched a/b/c/d even if FNM_PATHNAME was set) + Fix regular expression match for x* when there is no x at all. + Fix memory leak in error case in gethostbyname(2|). Thanks, Dietz Pröpper. + Add %h to vsnprintf. + Add FAQ. + Make %h work for signed numbers and add %hh to vsnprintf. + initgroups ignored the group argument :-( + remove printf references and nested functions from glob. + added an errno in libpthread that will display a prominent linker + warning. + started getting rid of kernel headers. Big task! :-( + add res_mkquery. The diet libc can now compile and link mtr. + Olaf: added a lot of code in libdl (not yet complete), changed the + startup code to make it work with his libdl and ld.so (needs still work + too) + __dns_readstartfiles only took the first domain or search path. + Thanks, Anthony de Boer + Olaf: added clone and a new unified_syscall for PowerPC + also dynlinker is now available (i386 only at this time) + crufted together a stdarg.h implementation from the various gcc headers. + implement getopt_long (ugh, the GNU people need professional help) + fixed word delimiters in regex (they looked for space, i.e. "," did + not work as delimiter) + errno.h now declares sys_errlist and sys_nerr. + added mkdtemp. + Uwe Ohse reported all of the following bugs: + ttyname should return 0 if !isatty. + realpath returns NULL if "." cannot be opened + putenv erroneously accepted (and mishandled) entries without "=". + popen returned 255 instead of 127 if /bin/sh could not be run. + fgetc did not set the internal EOF indicator on EOF. + bsearch contained an assumption about integer arithmetic overflow + behavior. + system did not set SIGCHLD and thus contained a race. + popen did not set close-on-exec and could leak an fd on malloc error. + daemon did not check whether open returns an fd below 3 + perror did not save errno. + Olaf: Peter Jones reported some problems with perror; strerror had the + same problem. + Peter also posted a patch to atexit/exit. With some modifications it is + now implemented. + Unbuffered stdio and ungetc can no longer be disabled. I will try to + implement part of it using ELF weak symbols. + Added minimal sysconf (tehe) from David Chappell. + Added overflow handling for strtoul and strtol. + Added WANT_ETC_HOSTS in dietfeatures.h and made gethostbyname/2 use + it before falling back to DNS if enabled. + Added a littie backwards compatibility cruft for gpm (man, do these + sources stink!) + Added openpty. + Squeeze a few bytes off the is* routines, courtesy of Peter Jones. + Fix fseek return value. + Add dirname and basename. + Add a few i386 math routines contributed by Frank Klemm. + Fixed getservent (did not allow _ and - in the aliases). + Thanks, Oden Eriksson + Added a float.h so configure believes we have ANSI header files. + Fix a lot more stdio bugs that Uwe Ohse pointed out. + Olaf: has added a new scanf and printf core that is suitable for all + scanf and printf function implementations + Imported a few more functions and optimizations from Frank Klemm (he + also rewrote dtostr to have more precision) + Olaf: checked in a new sig* function family (based on rt_sig*). + legacy <2.2 signal-handling doesn't work at the moment. + Made rudimentary iconv that can convert back and forth between + iso-8859-1, utf-8 and ucs-4 (for debugging). + Thanks to Markus Kuhn for the excellent utf-8(7)! + +0.10: + update getpagesize. + add personality. + add "%*s" and "%*.*s" support to vsnprintf. + add putchar (apparently arm-linux-gcc will substitute printf("\n") + with putchar('\n') behind your back...?! + import include/scsi/ from glibc. + add iopl. + add execl and sigdelset prototypes. + add getopt_long stuff to getopt.h (may compile but won't link). + add RPC headers (no code yet). + add mlockall, munlockall + make "diet gcc foo.c" work. + added Sun RPC code and removed as many warnings as possible in a + heroic act of self-mutilation. + added getproto* and getdtablesize for the RPC cruft :-( + added getpass. mount from util-linux actually compiles now! + fix the sig*set routines. mount actually works now *bg* + fix fwrite dividing by zero when trying to fwrite n records of size 0. + added an initial regex implementation (3500 bytes!!!). + add llseek and lseek64 with optional lseek fall-back. + add res_init. + add asprintf (ugh, what an ugly function). + expanded arpa/nameser.h to include backwards compatibility defines + add ut_name alias to ut_host in struct utmp. + add inet_ntop, inet_pton, gethostbyname2. + add sysinfo, recvmsg, sendmsg. + add endmntent, getmntent, setmntent. + fix fnmatch (thanks, Guillaume Cottenceau!) + add setenv. + remove __restrict from mntent.h, add __restrict__ removal alias for + older gcc versions in sys/cdefs.h. + add rlim_t, sig_atomic_t declarations. + add sigsetjmp #define for __sigsetjmp (oops). + (Thanks to Chris Siebenmann for these three bug reports) + add a gruesome hack to printf floating point to accept %f and kludge + together support for %.2f. Don't look at the code, please! + fixed tcsetpgrp (oops, this is embarassing! Thanks, Chris Siebenmann) + imported fix for entlib by Jeff Garzik. + add glob implementation from Guillaume Cottenceau (Thanks!!) + add libdl fragments from Olaf (Yeah! One step closer to dynamic linking!) + add REG_ICASE and word start/end handling to my regular expressions. + my regular expressions now actually match substrings (i.e. "foobar" to "bar"). + wrap getcwd to comply to man page (the syscall returns the number of + bytes, not the buffer) + add realpath. + fix vfprintf. + fix *scanf %s zero termination. + add abs, labs, llabs. + add <sys/io.h>, ioperm syscall. + add flock to <sys/file.h> + fixes to bsearch and the regular expressions. + add fake herror. + add scandir and alphasort. + add killpg + implemented a gross hack to make libpthread compile when + dietfeatures.h does not define WANT_THREAD_SAFE (it's empty then). + add getaddrinfo and freeaddrinfo (man, what a fucked up interface!) + fix sigsuspend (syscall had completely fscked up arguments!) + RLIM_INFINITY from the kernel is broken. Thanks to Chris Siebenmann + for sending a patch. + add getserv*. + add WANT_FULL_RESOLV_CONF so that the DNS routines use "domain" and + "search" from resolv.conf. + +0.9: + fixed initgroups (oops) + Cleanup appending file open for stdio (thanks, James Antill) + imported vfprintf fix from James Antill. + add fnmatch + change index, rindex and bcmp as weak ELF symbols (were #defined before) + Olaf added character classes to *scanf. + Put object and library files into a separate directory (bin-$ARCH). + Add "cross" make target to make all architectures. + Add "diet" program and man page. + Add getgrnam, getgrgid + Add cfmakeraw (Thanks, Antonio Musumeci) + localtime won't call gettimeofday when the tzfile parser is used. + +0.8: + vsnprintf(0,...) estimated the length of strings with a padding width + incorrectly. + new reboot() from Olaf. + added prototypes for getsockopt and setsockopt. + added experimental sem* and shm* + define EXIT_SUCCESS and EXIT_FAILURE + added setvbuf (only changes mode, not buffer) + added dietwarning.h (woohoo, linker warnings!) and used it to warn of + insecurity (system, sprintf) or bloat (printf and stdio). + added qsort() and bsearch(). Benchmark on 1000 random ints: + glibc: 679414 cycles qsort and 3352 cycles bsearch + diet libc: 300010 cycles qsort, 553 cycles bsearch + I have no idea why glibc is so slow. + added __isnan (references by libm.a from glibc). + added popen() and pclose(). Now the diet libc can link slsh (from + S-Lang!) + corrected usleep. It was more of an msleep until now. + corrected __dtostr (it looped when trying to format "0.0"). + several fixes to stdio (thanks to S-Lang's excellent test suite!) + added ungetc (does it work?) + added inet_aton (yuck!) + added gethostbyname, gethostbyaddr, gethostbyname_r and gethostbyaddr_r + added h_errno and __h_errno_location + added inet_ntoa + added setpgrp and getpgrp, strsignal and execv (thanks, Olaf) + add bcopy, index, rindex macros + add isgraph and isxdigit + add strftime (ugh!!!) + Olaf fixed strftime, gmtime_r leap year bug. + Jeff Garzik contributed a spec file. I put it in contrib and hope + everbody knows what to do with it... + Olaf checked in a ton of libpthread stuff. + added mkstemp using /dev/urandom (harder to guess than getpid()). + add large file backwards compatibility support (so gzip will run on + kernel 2.2 and 2.0) + added shutdown + added nice + added pseudo-locale support for is* (they are now weak aliases, + isupper -> __isupper_ascii etc). So, for example, liblatin1 can + overwrite the default is* functions. + added liblatin1.a + added tzfile implementation (does it work for anyone else?) + added syslog(3) (thanks to Rene Müller!) + Jeff Garzik contributed getgr*, getpw* and getsp* in one tiny package. + Thanks! + merged duplicate code in execv and execvp into exec_lib.o + +0.7.2: + added several prototypes to already implemented functions and + <sys/reboot.h>. Thanks for Abraham for pointing this out. + added prototypes for process group and dup syscalls. Thanks to + Abraham again. He also contributed an implementation for daemon(), + an ugly BSD hack. I decided to diversify the lib/ directory a + little and now created a libugly/ directory for stuff like system() + and daemon() ;-) + added libstdio and moved all that stdio crap from lib/ there. The + idea is to start separating now what we will separate for shared + libraries anyway. + optimized x86 unified-syscall by Olaf. + added limits.h, removed __ARCHBITS from endian.h (use __WORDSIZE from + limits.h instead) + added remove.c and enough cruft to limits.h to make it compile lzo, + lzop and bzip2. + added mktime, asctime_r, asctime and ctime (needed for gzip). + Someone will need to implement a reader for the glibc localtime file + format some day (man tzfile, ugh!) :-( + added unlink prototype to unistd.h. + added gmtime and gmtime_r. + fixed sparc unified syscall error handling (please upgrade!). + removed readdir glibc compatibility cruft. + removed stat glibc compatibility cruft. + oops, my fread was broken for pipes. + Olaf found a bug in pipe() for sparc, too. + +0.7.1: + optimized away the static arrays from __ltostr and __lltostr. + optimized away the static arrays (and more!) from strtoul and strtoull. + added system (by Olaf). + added tolower and toupper + added getopt from Olaf (~600 bytes on x86!) + added clone for mips (by Olaf). + fixed longjmp and setjmp on sparc not to require glibc include files. + added pause for all (by Olaf). + added __attribute__ ((__const__)) to ctype.h + added isupper and islower. + added putc and putchar as macros. + added strcasecmp and strncasecmp (thanks to Abraham vd Merwe for + insightful discussions and patches I partially used for the last three) + added getpriority and setpriority (also by Abraham) + oops, I broke strtoul in a recent optimization attempt. + oi, setjmp and longjmp were broken on other platforms, too! + Thanks to Sébastien Côté for reporting this. + +0.7: + clone support for i386,alpha,arm and sparc by Olaf. + Initial dynamic loading glue for i386, also by Olaf. + We don't have a dynamic loader yet, so this is not yet usable. + added readv, sigdelset, sigaltstack, sigfillset, sigismember, usleep, + vsprintf, writev, all by Olaf. + imported readdir fix from Guillaume. Mhh, can the kernel interface + really be this broken? + Found a kludgy way to detect whether the kernel includes define struct + stat64 (they also define STAT64_HAS_BROKEN_ST_INO). If this does + not work for you, please tell me! + Removed bogus __seek_types enum, it's a bunch of #defines now. + Fixed stdio line buffering. The code was already there but I forgot + to mark stdio and stdout as line buffered. This should really be + done dynamically using isatty, though. + Removed superfluous "if (1)" in execvp.c + +0.6.14: + *scanf did not append the 0 byte for %s. + added creat and changed creat to call open directly instead of open64. + did for fread what 0.6.10 did for fwrite. + repaired buffered stdio a little (line buffering is still not + supported). + [All of these bugs have been reported by Guillaume. Thanks!] + added __pure__ to strchr and strrchr in <string.h> + +0.6.13: + included COPYING to make clear that the diet libc is covered by the + GNU General Public License (and _not_ the LGPL). That means that + you need to obtain a license from me if you want to use the diet + libc in a proprietary program that you want to distribute. + The x86 unified syscall swapped arguments #4 and #5 and noone + noticed until now! Thanks to Guillaume Cottenceau for reporting + this! + The malloc had a subtle bug with small allocations that could cause + segfault. Guillaume reported it, Olaf fixed it. + +0.6.12: + added assert, statfs and fstatfs + added include/net/if.h so fget compiles again. + +0.6.11: + added putenv. + +0.6.10: + fixed fwrite. It returned the number of bytes written, not the number + of records. Thanks to Albert D. Cahalan for pointing this out. + fixed fgets. It returned EOF on empty lines. Thanks, Erik Frey. + added brk and sbrk. harold@nb.com.sg made me do it. + +0.6.9: + fixed execvp not to return on ENOENT + did for {open|read|close|seek|tell}dir what I did for stat before. + The glibc compatibility part is currently non-functional. + fixed white space handling in sscanf " (" would not match " (". + fixed printf to accept 'l' flag. + fixed getpwuid (ignored last line) + +0.6.8: + Olaf contributed initial thread-safe syscalls for i386, alpha, sparc, + mips and arm. I did the one for ppc. They can be enabled in dietfeatures.h. + added strlcpy and strlcat from OpenBSD. + added stat64, fstat64 and lstat64. + added endian.h and made ending of strlen.c endianness-aware + added string routines size tweak to dietfeatures.h. Most of the + string routines have been unrolled. This is up to three times as + fast but creates up to three times larger code. Now you can disable + the unrolling. + added sendfile. + I also added pread. It works on x86 and sparc but not on ppc and mips. + I have no idea what's going on. strace disagrees with the kernel. + Can anyone help? I asked the Linux kernel mailing list for help, too. + added a few aliases of the type __libc_open for open. nm on + libpthreads.so indicates that we will need them. + +0.6.7: + the sources now compile without warnings with -Wall. + printf now prints "(null)" when %s is passed NULL. This can be + removed with WANT_NULL_PRINTF in dietfeatures.h + added vfprintf, execl, ttyname. + stat, lstat and fstat are now #defined to __dietstat, __dietlstat and + __dietfstat so they can use the normal kernel struct stat. + stat, lstat and fstat are now C wrappers that convert to the glibc + struct stat. So we can avoid that overhead for programs that use + dietlibc headers. + +0.6.6: + changed the Makefiles so you can now set CFLAGS on the command line + added memccmp (analogous to memccpy) and strncmp. + Olaf fixed another bug in the sparc unified syscall. + Paul Clifford contributed a C version of his strlen.S that is much + more efficient than the previous strlen on all platforms! It also + looks like technology from Roswell. ;-} + added a "real" stdio. Well, almost. Please contribute! + added dietfeatures.h so you can remove features you don't need. + removed debug code from vsnprintf that changed \0 to ' ' (argh!). + stdio now works with simple programs and minigzip from libz. + stdio uses some major trickery to avoid linking the stdio, stderr and + stdout (and reserving space for them) when they are not used. + +0.6.5: + Red Plait <redplait@ixcelerator.com> found several bugs in diet libc, + most of them bugs in the new header files, but also missing sigset + functions. + Paul Clifford contributed an assembly strlen.S for ARM and fixed + several bugs. + Fixed ppc/setjmp and mips/pipe. + Olaf contributed a new sparc unified syscall. + +0.6.4: + declared is* static inline in getservent. + added assert_fail, strtoul, isalpha, isdigit, isalnum, isascii. + changed strlen to return 0 when passed NULL. + new, much smaller unified syscall for MIPS. Thanks to Olaf the Mad + Scientist who actually implemented this without access to a MIPS + box, just from reading the architecture manual. And it worked out + of the box. + started a set of system includes, mainly so that I can use lcc and + my alpha-linux cross compiler (which is unable to cross-compile + glibc). diet libc can now be compiled without any include files + from a normal libc. The includes do declare more than diet libc + currently delivers and they are still far from complete for real + applications. + I will only add assembly versions that are smaller _and_ faster than + the C version. Larger routines are only accepted if they are called + very often and are substantially faster. + added i386 assembly strchr, which is smaller and faster than the old + version. It is, however, larger than the version contributed by + proton (thanks, anyway). + added i386 strlen (31% faster, 14% smaller) + "make t" will now create a map file called "mapfile". + +0.6.3: + added sys_errlist, strerror and perror + added isblank + added atol + +0.6.2: + mmap for ARM didn't compile. Thanks, Paul! + +0.6.1: + split mmap into the architecture specific subdirectories. + getenv now copes with environ==NULL, thanks Paul Clifford. + Paul also contributed a smaller ARM startup code. + +0.6: + strcat returned the wrong result. Thanks, Dietz Pröpper. + strtod now understands a negative exponent (oops, thanks Bertram Barth) + Port to arm-linux-gnu, but on the Netwinder I use for testing the + __dtostr does not work (I have no idea why!) + The MIPS port now uses (much smaller) non-PIC code. That means that + the applications you link against diet libc also have to be compiled + non-PIC. I suggest copying the CFLAGS from the diet libc Makefile. + Thanks to Ralf Bächle for helping me with this! + I made subdirectories for the architectures and use VPATH to override + VPATH so that make finds the source file automatically. That should + simplify the sources greatly. + Olaf Dreesen contributed Alpha support including setjmp and longjmp! + ARM and MIPS now also have setjmp and longjmp + "compile" and "load" are now make targets. Use them for djb programs. + added contrib/elftrunc.c which will remove unnecessary ELF headers. + Again, contributed from Olaf. Great work! + +0.5.12: + printf also does signed numbers. + If you don't use atexit, dietlibc now does not link exit, only _exit. + *printf now correctly returns the number of bytes written. + Olaf contributed experimental sscanf and vsscanf implementations. + If passed NULL as buffer, snprintf will not write anything but still + return the number of bytes it would have written. + Initial MIPS port! (Oh, the agony!) + No setjmp and longjmp support yet! Please contribute! + I even implemented unified syscalls for MIPS. Still, MIPS code is + almost twice the size of SPARC code. If anyone knows why: please + tell me! + +0.5.11: + I implemented new unified syscalls for x86, sparc and ppc, this time based + on .s files and not .c files, and I moved the syscalls into + subdirectores to clean the dietlibc sources up a little. + A binary consisting of printf("%s is %d\n","olaf",23) is now + 2864 bytes on sparc + 2488 bytes on intel + I kludgily implemented fprintf(stdout,... and fprintf(stderr,... + to make a few more applications work. + Olaf Dreesen also implemented some unified syscall stuff for x86. + He discovered that with our unified syscall interface it actually + costs <10 bytes total to make all system calls thread safe! + I implemented atexit() (can register up to 4 callbacks). + I implemented strtod and __dtostr (the opposite). Now we can add + floating point support to vsnprintf and sscanf! + +0.5.10: + I actually saw that I can not only merge the errno handling code of + the system calls on x86, I can also merge the rest (including the + arguments) except for setting the system call number. All those + system calls are now just a jump to a unified system call handler. + I got rid of x86openclose again. The savings are substantial: + chown from embutils went from 7664 to 7184 bytes! + If I'd move the system call wrappers to assembly language, I could + even reduce the alignment (does not matter since it's just a jump + anyway) and get rid of the "ret" behind each jump (one byte per + system call!) + +0.5.9: + added memchr, strpbrk, strstr, strtol, isspace (hehe) + fixed strdup + fixed return values for strcpy and strcat (thanks to Norbert Berzen) + Olaf Dreesen contributed a strtol and initial {sn|vsn|}printf implementation + (no signed integers, only strings and unsigned integers (but + supporting octal, hex and decimal). Thanks, Olaf! (by the way: + that code must be wonderful, I don't understand it at all *bg*) + Olaf's printf does understand padding like in "%08d" and "%8d" and + automatically pads pointers with '0'. + Rewrote the x86 start code, old: 22 instructions, new: 12 instructions. + Thanks to proton for inspiration on this. + The new x86 start code also does not reference exit any more, thus saving + 64 bytes for executables that don't call exit explicitly. + [insert maniacal laughter] EVERY BYTE COUNTS!1!! ;-) + Moved errno and environ to start.S, saving no byte binary size but + speeding up compilation and slightly shortening dietlibc.a ;-) + For x86: joined open and close into one assembler file, sharing the + errno handling. This is a feasibility test and it actually saves a + few bytes. I think I will reimplement the _syscall[1-6] macros on + all platforms now to share the errno handling code for them. + +0.5.8: + fixed strchr to be able to look for 0. + + added _llseek, ftruncate, getpgid, getresgid, getresuid, getsid, + memccpy, memmove, mprotect, setregid, setresgid, setresuid, setreuid, + strncpy, swapon, truncate, strtok, strtok_r, strspn, strcspn (all + contributed by Olaf Dreesen) + + added execvp, getcwd + + fixed __xmknod + + Note: can it be that the ftw interface really is so broken that I + cannot implement it without having to implement some searching data + structure? I included an experimental ftw implementation that will + not follow symlinks. + +0.5.7: + oops, if_nametoindex was broken! + +0.5.6: + ported to ppc-linux. + fixed i386 sigsetjmp (I mistyped the function name) + included sigjmp.c + +0.5.5: + added wait, sys_siglist, longjmp/setjmp/sigsetjmp for i386 and sparc + actually, it wasn't fork that wasn't working for sparc, it was pipe. + I fixed it now. + dietlibc/SPARC assumes -msupersparc (does not provide div, mul, etc) + fixed readdir to use getdents and not the intel inline asm + +0.5.4: + ported to sparclinux (sparc32 only). Beware: does not work yet. + added raise, abort, readlink, strcat, geteuid, geteuid, wait3, access + +0.5.3: + added tcsetattr and getenv to compile e3 + +0.5.2: + added vhangup, tcgetattr, isatty and memcmp for fgetty + (http://www.fefe.de/fgetty/) + added localtime from uC-libc. + +0.5.1: + stat and friends actually work now. Yuck! Another case of + translation between kernel and userland. Why can't the kernel + people and the libc people simply agree on a standard? + removed many unnecessary includes to speed up compilation. + added -fomit-frame-pointer and i386 compilation target to reduce code size. + inlined socketcall to reduce code size. + "load" and "compile" are examples for djb code. + +0.5: + Olaf Dreesen contributed a much smaller implementation of malloc and friends. + each object file is now treated with "strip -x -R .note -R .comment" + split each system call into a separate object file + added ntohs, htons, alarm, if_indextoname and if_nametoindex + +0.4.1: + oops, the strchr implementation was wrong. Thanks Jens Laas! + +0.4: + copied opendir and friends from uC-libc. + added getservent and getservby* in gerservent.c + +0.3: + remove readdir system call + added getdents system call + added getpwnam/getpwuid implementation in getpwnam.c + added a few string functions (in str*.c) + |