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2017-01-01Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2016-06-23libio: Implement vtable verification [BZ #20191]Florian Weimer1-3/+3
This commit puts all libio vtables in a dedicated, read-only ELF section, so that they are consecutive in memory. Before any indirect jump, the vtable pointer is checked against the section boundaries, and the process is terminated if the vtable pointer does not fall into the special ELF section. To enable backwards compatibility, a special flag variable (_IO_accept_foreign_vtables), protected by the pointer guard, avoids process termination if libio stream object constructor functions have been called earlier. Such constructor functions are called by the GCC 2.95 libstdc++ library, and this mechanism ensures compatibility with old binaries. Existing callers inside glibc of these functions are adjusted to call the original functions, not the wrappers which enable vtable compatiblity. The compatibility mechanism is used to enable passing FILE * objects across a static dlopen boundary, too.
2016-01-04Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2015-07-08Use "|" instead of "+" when combine the _IO_LINE_BUF and _IO_UNBUFFERED flagsFeng Gao1-3/+3
Both of "_IO_UNBUFFERED" and "_IO_LINE_BUF" are the bit flags, but I find there are some codes looks like "_IO_LINE_BUF+_IO_UNBUFFERED", while some codes are "_IO_LINE_BUF|_IO_UNBUFFERED". I think the former is not good, even though the final result is same.
2015-01-02Update copyright dates with scripts/update-copyrights.Joseph Myers1-1/+1
2014-12-04Fix up function definition styleSiddhesh Poyarekar1-20/+6
Don't use K&R style for function definitions.
2014-12-04Reset cached offset when reading to end of stream (BZ #17653)Siddhesh Poyarekar1-1/+4
POSIX allows applications to switch file handles when a read results in an end of file. Unset the cached offset at this point so that it is queried again.
2014-12-04ftell: seek to end only when there are unflushed bytes (BZ #17647)Siddhesh Poyarekar1-5/+4
Currently we seek to end of file if there are unflushed writes or the stream is in write mode, to get the current offset for writing in append mode, which is the end of file. The latter case (i.e. stream is in write mode, but no unflushed writes) is unnecessary since it will only happen when the stream has just been flushed, in which case the recorded offset ought to be reliable. Removing that case lets ftell give the correct offset when it follows an ftruncate. The latter truncates the file, but does not change the file position, due to which it is permissible to call ftell without an intervening fseek call. Tested on x86_64 to verify that the added test case fails without the patch and succeeds with it, and that there are no additional regressions due to it. [BZ #17647] * libio/fileops.c (do_ftell): Seek only when there are unflushed writes. * libio/wfileops.c (do_ftell_wide): Likewise. * libio/tst-ftell-active-handler.c (do_ftruncate_test): New test case. (do_one_test): Call it.
2014-11-03Don't error out writing a multibyte character to an unbuffered stream (bug ↵Andreas Schwab1-5/+20
17522)
2014-09-16Fix memory leak in error path of do_ftell_wide (BZ #17370)Siddhesh Poyarekar1-1/+4
2014-09-11Fix memory leak in libio/wfileops.c do_ftell_wide [BZ #17370]Tim Lammens1-0/+1
2014-05-27Fix offset computation for append+ mode on switching from read (BZ #16724)Siddhesh Poyarekar1-3/+10
The offset computation in write mode uses the fact that _IO_read_end is kept in sync with the external file offset. This however is not true when O_APPEND is in effect since switching to write mode ought to send the external file offset to the end of file without making the necessary adjustment to _IO_read_end. Hence in append mode, offset computation when writing should only consider the effect of unflushed writes, i.e. from _IO_write_base to _IO_write_ptr. The wiki has a detailed document that describes the rationale for offsets returned by ftell in various conditions: https://sourceware.org/glibc/wiki/File%20offsets%20in%20a%20stdio%20stream%20and%20ftell
2014-03-17Fix offset caching for streams and use it for ftell (BZ #16680)Siddhesh Poyarekar1-23/+24
The ftell implementation was made conservative to ensure that incorrectly cached offsets never affect it. However, this causes problems for append mode when a file stream is rewound. Additionally, the 'clever' trick of using stat to get position for append mode files caused more problems than it solved and broke old behavior. I have described the various problems that it caused and then finally the solution. For a and a+ mode files, rewinding the stream should result in ftell returning 0 as the offset, but the stat() trick caused it to (incorrectly) always return the end of file. Now I couldn't find anything in POSIX that specifies the stream position after rewind() for a file opened in 'a' mode, but for 'a+' mode it should be set to 0. For 'a' mode too, it probably makes sense to keep it set to 0 in the interest of retaining old behavior. The initial file position for append mode files is implementation defined, so the implementation could either retain the current file position or move the position to the end of file. The earlier ftell implementation would move the offset to end of file for append-only mode, but retain the old offset for a+ mode. It would also cache the offset (this detail is important). My patch broke this and would set the initial position to end of file for both append modes, thus breaking old behavior. I was ignorant enough to write an incorrect test case for it too. The Change: I have now brought back the behavior of seeking to end of file for append-only streams, but with a slight difference. I don't cache the offset though, since we would want ftell to query the current file position through lseek while the stream is not active. Since the offset is moved to the end of file, we can rely on the file position reported by lseek and we don't need to resort to the stat() nonsense. Finally, the cache is always reliable, except when there are unflished writes in an append mode stream (i.e. both a and a+). In the latter case, it is safe to just do an lseek to SEEK_END. The value can be safely cached too, since the file handle is already active at this point. Incidentally, this is the only state change we affect in the file handle (apart from taking locks of course). I have also updated the test case to correct my impression of the initial file position for a+ streams to the initial behavior. I have verified that this does not break any existing tests in the testsuite and also passes with the new tests.
2014-03-04Fix up formattingSiddhesh Poyarekar1-2/+2
2014-03-04Use cached offset in ftell when reliableSiddhesh Poyarekar1-1/+24
The cached offset is reliable to use in ftell when the stream handle is active. We can consider a stream as being active when there is unflushed data. However, even in this case, we can use the cached offset only when the stream is not being written to in a+ mode, because this case may have unflushed data and a stale offset; the previous read could have sent it off somewhere other than the end of the file. There were a couple of adjustments necessary to get this to work. Firstly, fdopen now ceases to use _IO_attach_fd because it sets the offset cache to the current file position. This is not correct because there could be changes to the file descriptor before the stream handle is activated, which would not get reflected. A similar offset caching action is done in _IO_fwide, claiming that wide streams have 'problems' with the file offsets. There don't seem to be any obvious problems with not having the offset cache available, other than that it will have to be queried in a subsequent read/write/seek. I have removed this as well. The testsuite passes successfully with these changes on x86_64.
2014-03-04Separate ftell from fseek logic and avoid modifying FILE data (#16532)Siddhesh Poyarekar1-102/+127
ftell semantics are distinct from fseek(SEEK_CUR) especially when it is called on a file handler that is not yet active. Due to this caveat, much care needs to be taken while modifying the handler data and hence, this first iteration on separating out ftell focusses on maintaining handler data integrity at all times while it figures out the current stream offset. The result is that it makes a syscall for every offset request. There is scope for optimizing this by caching offsets when we know that the handler is active. A simple way to find out is when the buffers have data. It is not so simple to find this out when the buffer is empty without adding some kind of flag.
2014-02-10Use glibc_likely instead __builtin_expect.Ondřej Bílka1-6/+6
2014-02-05Fix infinite loop in ftell when writing wide char data (BZ #16398)Siddhesh Poyarekar1-4/+7
ftell tries to avoid flushing the buffer when it is in write mode by converting the wide char data and placing it into the binary buffer. If the output buffer space is full and there is data to write, the code reverts to flushing the buffer. This breaks when there is space in the buffer but it is not enough to convert the next character in the wide data buffer, due to which __codecvt_do_out returns a __codecvt_partial status. In this case, ftell keeps running in an infinite loop. The fix here is to detect the __codecvt_partial status in addition to checking if the buffer is full. I have also added a test case that demonstrates the infinite loop.
2014-01-01Update copyright notices with scripts/update-copyrightsAllan McRae1-1/+1
2013-06-07Avoid use of "register" as optimization hint.Joseph Myers1-4/+4
2013-02-07Remove lots of inline keywords.Roland McGrath1-1/+1
2013-01-02Update copyright notices with scripts/update-copyrights.Joseph Myers1-1/+1
2012-10-09Remove _G_off64_t and _G_stat64 from _G_config.h.Joseph Myers1-1/+1
2012-09-28Don't flush write buffer for ftellSiddhesh Poyarekar1-20/+96
[BZ #5298] Use write pointer state along with the file offset and/or the read pointers to get the current file position.
2012-09-28Adjust wide data buffer pointers during fseek and ftellSiddhesh Poyarekar1-0/+59
[BZ #14543] Set the internal buffer state correctly whenever the external buffer state is modified by fseek by either computing the current _IO_read_ptr/end for the internal buffer based on the new _IO_read_ptr in the external buffer or converting the content read into the external buffer, up to the extent of the requested fseek offset.
2012-09-05Fix typos in commentsSiddhesh Poyarekar1-1/+1
* libio/fileops.c: Fix typos in comments. * libio/oldfileops.c: Likewise. * libio/wfileops.c: Likewise.
2012-05-24Remove use of INTDEF/INTUSE in libioAndreas Schwab1-55/+55
2012-02-09Replace FSF snail mail address with URLs.Paul Eggert1-3/+2
2011-11-11Remove unused variablesMarek Polacek1-13/+12
2011-04-22Remove doubled words.Jim Meyering1-2/+2
2009-09-19Remove some unused variables.Roland McGrath1-4/+0
2009-09-02Fix fsetpos on wide stream.Andreas Schwab1-35/+14
2009-09-01Cleanup _IO_wfile_seekoff.Andreas Schwab1-71/+39
This reformulates the in-buffer optimisation check to match the code in _IO_new_file_seekoff. No functional changes, but easier to understand.
2009-02-05* sysdeps/unix/sysv/linux/sparc/bits/siginfo.h (struct sigevent):Ulrich Drepper1-2/+22
Add _tid slot to maintain consistency with kernel.
2009-02-042009-02-04 Ulrich Drepper <drepper@redhat.com>cvs/fedora-glibc-20090204T2135Ulrich Drepper1-11/+37
* libio/wfileops.c (_IO_wfile_underflow): Fix handling of incomplete characters at end of input buffer. * libio/Makefile (tests): Add tst-fgetwc. * libio/tst-fgetwc.c: New file. * libio/tst-fgetwc.input: New file.
2006-01-15[BZ #2079] Andreas Jaeger1-2/+2
* libio/fputwc_u.c (fputwc_unlocked): Fix return value. * libio/getwc_u.c (__getwc_unlocked): Likewise. * libio/wfileops.c (_IO_wdo_write): Likewise.
2004-12-22(CFLAGS-tst-align.c): Add -mpreferred-stack-boundary=4.Ulrich Drepper1-2/+2
2007-07-122.5-18.1Jakub Jelinek1-2/+2
2004-01-14Update.Ulrich Drepper1-4/+4
2004-01-14 Ulrich Drepper <drepper@redhat.com> * libio/libio.h: Add const to function tables types. * libio/libioP.h: Likewise. * /login/utmp-private.h: Likewise. * libio/fileops.c: Add const to jump table variable definition. * libio/genops.c: Likewise. * libio/iofopncook.c: Likewise. * libio/iopopen.c: Likewise. * libio/memstream.c: Likewise. * libio/obprintf.c: Likewise. * libio/oldfileops.c: Likewise. * libio/oldiopopen.c: Likewise. * libio/strops.c: Likewise. * libio/vsnprintf.c: Likewise. * libio/vswprintf.c: Likewise. * libio/wfileops.c: Likewise. * libio/wstrops.c: Likewise. * login/getutent_r.c: Likewise. * login/getutid_r.c Likewise. * login/getutline_r.c: Likewise. * sysdeps/generic/utmp_file.c: Likewise.
2003-09-06Update.Ulrich Drepper1-0/+1
* sysdeps/unix/sysv/linux/tcgetattr.c (__tcgetattr): Fill in c_ispeed and c_ospeed fields. * sysdeps/unix/sysv/linux/speed.c (cfsetospeed): Set c_ospeed field. (cfsetispeed): Set c_ispeed field. * sysdeps/unix/sysv/linux/tcsetattr.c (IBAUD0): Define unconditionally to match corresponding speed.c code. 2003-09-06 Ulrich Drepper <drepper@redhat.com> * libio/wfileops.c (_IO_wfile_underflow): Mark beginning of the narrow character buffer. * libio/Makefile: Add rules to build and run bug-ftell. * libio/bug-ftell.c: New file. * stdio-common/vfprintf.c: Don't use the first grouping number twice. * stdio-common/vfscanf.c (vfscanf): Fix recognition of characters matching the decimal point and possibly leading the thousands separator. This caused the recognition of thousands separators to always fail. 2003-09-05 Ulrich Drepper <drepper@redhat.com> * libio/fileops.c (_IO_new_file_overflow): Handle switching to write mode from read in backup buffer. * libio/Makefile (tests): Add bug-ungetc2. * libio/bug-ungetc2.c: New file. 2003-09-05 Roland McGrath <roland@redhat.com> >>>>>>> 1.7905 * sysdeps/unix/sysv/linux/linux_fsinfo.h: Define VXFS_SUPER_MAGIC.
2003-08-29Update.Ulrich Drepper1-5/+2
2003-08-29 Jakub Jelinek <jakub@redhat.com> * libio/Makefile: Compile fputc.c, fputwc.c, freopen64.c, freopen.c, fseek.c, fseeko64.c, fseeko.c, ftello64.c, ftello.c, fwide.c, getc.c, getchar.c, getwc.c, getwchar.c, iofclose.c, iofflush.c, iofgetpos64.c, iofgetpos.c, iofgets.c, iofgetws.c, iofputs.c, iofputws.c, iofread.c, iofsetpos64.c, iofsetpos.c, ioftell.c, iofwrite.c, iogetdelim.c, iogetline.c, iogets.c, iogetwline.c, ioputs.c, ioseekoff.c, ioseekpos.c, iosetbuffer.c, iosetvbuf.c, ioungetc.c, ioungetwc.c, oldfileops.c, oldiofclose.c, oldiofgetpos64.c, oldiofgetpos.c, oldiofsetpos64.c, oldiofsetpos.c, peekc.c, putc.c, putchar.c, putwc.c, putwchar.c and rewind.c with exceptions. * sysdeps/generic/bits/stdio-lock.h (_IO_acquire_lock, _IO_release_lock): Define. * libio/fileops.c (_IO_new_file_underflow): Use it. * libio/fputc.c (fputc): Likewise. * libio/fputwc.c (fputwc): Likewise. * libio/freopen64.c (freopen64): * libio/freopen.c (freopen): Likewise. * libio/fseek.c (fseek): Likewise. * libio/fseeko64.c (fseeko64): Likewise. * libio/fseeko.c (fseeko): Likewise. * libio/ftello64.c (ftello64): Likewise. * libio/ftello.c (ftello): Likewise. * libio/fwide.c (fwide): Likewise. * libio/getc.c (_IO_getc): Likewise. * libio/getchar.c (getchar): Likewise. * libio/getwc.c (_IO_getwc): Likewise. * libio/getwchar.c (getwchar): Likewise. * libio/iofclose.c (_IO_new_fclose): * libio/iofflush.c (_IO_fflush): Likewise. * libio/iofgetpos64.c (_IO_new_fgetpos64): Likewise. * libio/iofgetpos.c (_IO_new_fgetpos): Likewise. * libio/iofgets.c (_IO_fgets): Likewise. * libio/iofgetws.c (fgetws): Likewise. * libio/iofputs.c (_IO_fputs): * libio/iofputws.c (_IO_fputs): Likewise. * libio/iofread.c (_IO_fread): Likewise. * libio/iofsetpos64.c (_IO_new_fsetpos64): Likewise. * libio/iofsetpos.c (_IO_new_fsetpos): Likewise. * libio/ioftell.c (_IO_ftell): Likewise. * libio/iofwrite.c (_IO_fwrite): Likewise. * libio/iogetdelim.c (_IO_getdelim): Likewise. * libio/iogets.c (_IO_gets): Likewise. * libio/ioputs.c (_IO_puts): Likewise. * libio/ioseekoff.c (_IO_seekoff): Likewise. * libio/ioseekpos.c (_IO_seekpos): Likewise. * libio/iosetbuffer.c (_IO_setbuffer): Likewise. * libio/iosetvbuf.c (_IO_setvbuf): Likewise. * libio/ioungetc.c (_IO_ungetc): Likewise. * libio/ioungetwc.c (ungetwc): Likewise. * libio/oldiofclose.c (_IO_old_fclose): Likewise. * libio/oldiofgetpos64.c (_IO_old_fgetpos64): Likewise. * libio/oldiofgetpos.c (_IO_old_fgetpos): Likewise. * libio/oldiofsetpos64.c (_IO_old_fsetpos64): Likewise. * libio/oldiofsetpos.c (_IO_old_fsetpos): Likewise. * libio/peekc.c (_IO_peekc_locked): Likewise. * libio/putc.c (_IO_putc): Likewise. * libio/putchar.c (putchar): Likewise. * libio/putwc.c (putwc): Likewise. * libio/putwchar.c (putwchar): Likewise. * libio/rewind.c (rewind): Likewise. * libio/wfileops.c (_IO_wfile_underflow): Likewise.
2003-03-27* scripts/abilist.awk: If variable `parse_names' is set, grok the fileRoland McGrath1-2/+2
header lines and write out foo.symlist files for each foo.so.NN listed. * libio/libioP.h (_IO_wfile_jumps): Remove attribute_hidden. This symbol is exported, and we don't want to hide it. Add libc_hidden_proto instead. (_IO_file_jumps): Add libc_hidden_proto. * libio/wfileops.c (_IO_wfile_jumps): Add libc_hidden_data_def. Remove INTVARDEF. * libio/fileops.c (_IO_file_jumps): Likewise. * libio/stdfiles.c: Don't use INTUSE on them. * libio/iofdopen.c (_IO_new_fdopen): Likewise. * libio/iofopen.c (__fopen_internal): Likewise. * libio/freopen.c (freopen): Likewise. * libio/freopen64.c (freopen64): Likewise. * libio/iovdprintf.c (_IO_vdprintf): Likewise.
2002-11-05(_IO_wfile_seekoff): Don't modify _offset and _wide_data->_IO_read_end if ↵Ulrich Drepper1-7/+2
adjustment can be made in the current buffer.
2002-08-26Update.Ulrich Drepper1-1/+5
2002-08-26 Ulrich Drepper <drepper@redhat.com> * libio/wfileops.c (_IO_wfile_seekoff): Set fp->_offset after finding the read position [PR libc/4265]. * libio/Makefile (tests): Add bug-rewind2. * libio/bug-rewind2.c: New file.
2002-08-25Update.Ulrich Drepper1-2/+2
2002-08-24 Ulrich Drepper <drepper@redhat.com> * locale/programs/charmap.c (charmap_new_char): Don't use ULONG_MAX as maximum UCS4 value. * sysdeps/unix/sysv/linux/ia64/sys/user.h: New file. * sysdeps/generic/strtol.c: We don't need the isascii test in glibc. * malloc/hooks.c (public_sET_STATe): use size_t as type for i. * malloc/malloc.c (mALLINFo): Likewise. * libio/wstrops.c (_IO_wstr_pbackfail): Use WEOF in comparison. * libio/wfileops.c (_IO_wfile_overflow): Use EOF not WEOF when examining result of _IO_do_flush call. * stdio-common/vfprintf.c (vfprintf): Use correct type in va_arg. Use prec not spec when sizing buffers. * catgets/open_catalog.c (__open_catalog): Add casts to avoid warnings. * locale/loadarchive.c (_nl_load_locale_from_archive): Likewise. * locale/loadlocale.c (_nl_intern_locale_data): Likewise. * stdio-common/vfscanf.c (inchar): Likewise. * misc/efgcvt_r.c (fcvt_r): Likewise. * elf/dl-misc.c (_dl_debug_vdprintf): Likewise. * elf/readlib.c (process_file): Likewise. * elf/sprof.c (load_profdata): Likewise. * sysdeps/ia64/hp-timing.h (HP_TIMING_PRINT): Likewise. * locale/programs/linereader.c (get_toplvl_escape): Likewise. * locale/programs/charmap.c (charmap_read): Likewise. * libio/fileops.c: Likewise. * libio/fmemopen.c: Likewise. * stdlib/strtod.c: Likewise. * elf/dl-load.c: Likewise. * iconv/iconvconfig.c: Likewise. * iconv/iconv_prog.c (process_block): Likewise. * sysdeps/unix/sysv/linux/ia64/Makefile: Define _ASM_IA64_CURRENT_H macro to calm down the compiler. * iconv/gconv_cache.c (__gconv_load_cache): Add cast to avoid warning. * sysdeps/ia64/elf/initfini.c: Don't use newlines embedded in string. * sysdeps/unix/sysv/linux/i386/sysdep.S: Update comment regarding placement of errno definition. * sysdeps/unix/sysv/linux/m68k/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/mips/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/x86_64/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/s390/s390-32/sysdep.S: Likewise. * sysdeps/unix/sysv/linux/s390/s390-64/sysdep.S: Likewise. * resolv/nss_dns/dns-host.c (MAXPACKET): Increase minimum value from 1024 to 65536, to avoid buffer overrun. 2002-08-16 Paul Eggert <eggert@twinsun.com> * resolv/gethnamaddr.c (MAXPACKET): Increase minimum value from 1024 to 65536, to avoid buffer overrun. * resolv/res_query.c (MAXPACKET): Likewise. architectures.
2002-08-04Update.Ulrich Drepper1-1/+1
2002-08-04 Ulrich Drepper <drepper@redhat.com> * stdio-common/psignal.c: Declare _sys_siglist_internal. Use USEINT to access _sys_siglist. * string/strsignal.c: Likewise. * sysdeps/generic/siglist.c: Add _sys_siglist_internal alias. * sysdeps/gnu/siglist.c: Likewise. * sysdeps/unix/siglist.c: Likewise. * sysdeps/unix/sysv/linux/arm/siglist.c: Likewise. * libio/fileops.c: Add missing INTUSEs for _IO_file_jumps. * libio/wfileops.c: Add missing INTUSE for _IO_file_close. * intl/dcigettext.c: Define _nl_default_dirname_internal as hidden alias and use it. * intl/bindtextdom.c: Use _nl_default_dirname_internal. * include/netinet/in.h: Add declaration of in6addr_loopback_internal. * inet/in6_addr.c: Add INTVARDEF for in6addr_loopback. * sysdeps/posix/getaddrinfo.c: Use INTUSE for in6addr_loopback access. * include/time.h: Add libc_hidden_proto for __gmtime_r. * time/gmtime.c (__gmtime_r): Add libc_hidden_def. * iconv/Versions: Replace __gconv_alias_db, __gconv_modules_db, and __gconv_cache with __gconv_get_alias_db, __gconv_get_modules_db, and __gconv_get_cache respectively. * iconv/gconv_cache.c (gconv_cache): Renamed for __gconv_cache and defined static. Change all users. (__gconv_get_cache): New function. * iconv/gconv_db.c (__gconv_get_modules_db): New function. (__gconv_get_alias_db): New function. * iconv/gconv_int.h (__gconv_alias_db): Declare as hidden. (__conv_modules_db): Likewise. Add prototypes for __gconv_get_cache, __gconv_get_modules_db, and __gconv_get_alias_db. * iconv/iconv_prog.c: Use the new functions instead of accessing the variables. * include/stdlib.h: Add prototype and libc_hidden_proto for __default_morecore. * sysdeps/generic/morecore.c: Include <stdlib.h>. * malloc/obstack.c: Remove fputs macro. * malloc/mtrace.c: Remove fopen macro.
2002-08-02* libio/fileops.c (_IO_file_sync_mmap): New function.Roland McGrath1-5/+39
(_IO_file_jumps_mmap): Use it. (_IO_file_underflow_mmap): Rewritten. If after EOF or fflush, repeat the stat check and resize the mapped buffer as necessary. 2002-07-31 Roland McGrath <roland@frob.com> * libio/fileops.c (decide_maybe_mmap): New static function. Code taken from libio/iofopen.c:__fopen_maybe_mmap to try to mmap the file contents. Then switch the jump tables to the mmap tables if it worked, or the vanilla file tables if not. (_IO_file_underflow_maybe_mmap): New function. (_IO_file_seekoff_maybe_mmap): New function. (_IO_file_xsgetn_maybe_mmap): New function. (_IO_file_jumps_maybe_mmap): New variable, jump table using those. * libio/libioP.h: Declare those. * libio/wfileops.c (_IO_wfile_underflow_maybe_mmap): New function. (_IO_wfile_jumps_maybe_mmap): New variable, jump table using that. * libio/iofopen.c (__fopen_maybe_mmap): Don't try to mmap here. If the stream is read-only, set its jump tables to those new ones. * libio/iofdopen.c (_IO_new_fdopen) [_G_HAVE_MMAP]: Set the initial jump tables to the maybe_mmap ones, and don't call __fopen_maybe_mmap. We need the tables set before _IO_file_attach. * libio/tst-mmap-eofsync.c: New file. * libio/tst-mmap-fflushsync.c: New file. * libio/bug-mmap-fflush.c: New file. * libio/tst-mmap2-eofsync.c: New file. * libio/Makefile (tests): Add them. * libio/wfileops.c (_IO_wfile_underflow_mmap): Don't set EOF bit when _IO_file_underflow_mmap fails, it already set the appropriate bit.
2002-07-15Update.Ulrich Drepper1-2/+28
2002-07-15 Ulrich Drepper <drepper@redhat.com> * libio/wfileops.c (_IO_wfile_seekoff): Reposition wide pointers and adjust state for seek position. [PR libc/4070] * libio/Makefile (tests): Add bug-rewind. * libio/bug-rewind.c: New file.
2002-06-22Update.Ulrich Drepper1-19/+1
2002-06-17 Jakub Jelinek <jakub@redhat.com> * elf/dl-lookup.c (_dl_debug_bindings): Use type_class 4 for TLS lookups. * elf/rtld.c (dl_main): Move TLS setup code before LD_TRACE_PRELINKING code. Print TLS modid and offset for modules containing PT_TLS segments. 2002-06-09 Jakub Jelinek <jakub@redhat.com> * sysdeps/unix/sysv/linux/i386/dl-brk.c: Move... * sysdeps/unix/sysv/linux/dl-brk.c: ...here. * sysdeps/unix/sysv/linux/i386/dl-sbrk.c: Move... * sysdeps/unix/sysv/linux/dl-sbrk.c: ...here. 2002-06-07 Jakub Jelinek <jakub@redhat.com> * nss/getXXbyYY_r.c (NEW, NEW1): Define. (NEW (REENTRANT_NAME)): Strong alias to INTERNAL (REENTRANT_NAME). (REENTRANT_NAME@@GLIBC_2.1.2): Use NEW (REENTRANT_NAME). * nss/getXXent_r.c (NEW, NEW1): Define. (NEW (REENTRANT_GETNAME)): Strong alias to INTERNAL (REENTRANT_GETNAME). (REENTRANT_GETNAME@@GLIBC_2.1.2): Use NEW (REENTRANT_GETNAME). 2002-06-21 Ulrich Drepper <drepper@redhat.com> * libio/fileops.c (_IO_file_setbuf_mmap): New function. (_IO_file_jumps_mmap): Use it. * libio/iosetvbuf.c: Don't call _IO_WSETBUF. * libio/libioP.h: Remove _IO_wdefault_setbuf and _IO_wdefault_setbuf_internal prorotypes. Add _IO_file_setbuf_mmap prototype. * libio/wfileops.c (_IO_wfile_setbuf): Removed. (_IO_wfile_jumps_mmap): Don't use it anymore. * libio/wgenops.c (_IO_wdefault_setbuf): Removed. * libio/memstream.c (_IO_wmem_jumps): Use _IO_default_setbuf not _IO_wdefault_setbuf. * libio/vswprintf.c (_IO_wstrn_jumps): Likewise. * libio/wstrops.c (_IO_wstr_jumps): Likewise. * stdio-common/vfprintf.c (_IO_helper_jumps): Likewise. 2002-06-05 Jakub Jelinek <jakub@redhat.com> * libio/Makefile (tests): Add tst-mmap-setvbuf. * libio/tst-mmap-setvbuf.c: New test.
2002-03-13Update.Ulrich Drepper1-1/+1
* stdio-common/itowa-digits.c (_itowa_lower_digits): Define as hidden. (_itowa_upper_digits): Likewise. * libio/stdio.c (_IO_stdin, _IO_stdout, _IO_stderr): Define as hidden. * libio/libio.h [_LIBC] (_IO_stdin, _IO_stdout, _IO_stderr): Declare as hidden. * libio/libioP.h: Declare _IO_file_jumps_mmap, _IO_wfile_jumps, _IO_wfile_jumps_mmap, _IO_proc_jumps, _IO_old_proc_jumps, _IO_str_jumps, _IO_wstr_jumps, _IO_file_jumps_internal, _IO_wfile_jumps_internal, and _IO_list_all_internal as hidden. * gmon/gmon.c (__bb_head): Define as hidden. * gmon/bb_exit_func.c (__bb_head): Declare as hidden. * argp/argp-parse.c (_argp_hang): Define as static. * include/libc-symbols.h (_INTVARDEF): Adjust for visibility handling in latest compilers. * inet/in6_addr.c (in6addr_any): Use INTVARDEF not INTDEF to define alias. * libio/fileops.c (_IO_file_jumps): Likewise. * libio/stdfiles.c (_IO_list_all): Likewise. * libio/wfileops.c (_IO_wfile_jumps): Likewise. * malloc/malloc.h: Move __libc_malloc_initialized declaration to include/malloc.h. * include/malloc.h: Add __libc_malloc_initialized declaration here. Mark variable hidden. * malloc/malloc.c: Include <malloc.h> not "malloc.h". * elf/dl-open.c (__libc_argc): Declare as hidden. (__libc_argv): Likewise. * sysdeps/generic/wordexp.c (__libc_argc): Declare as hidden. (__libc_argv): Likewise. * sysdeps/mach/hurd/i386/init-first.c: Define __libc_argc and __libc_argv as hidden. * sysdeps/mach/hurd/mips/init-first.c: Likewise. * sysdeps/mach/hurd/powerpc/init-first.c: Likewise. * sysdeps/unix/sysv/aix/init-first.c: Likewise. * sysdeps/unix/sysv/linux/init-first.c: Likewise.
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