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1998-03-25  Ulrich Drepper  <drepper@cygnus.com>

	* glibcbug.in: Create files safely when mktemp is not available.

	* sysdeps/unix/sysv/linux/adjtime.c: Make weak alias appear again.
	Patch by a sun <asun@saul1.u.washington.edu>.

1998-03-25  Thorsten Kukuk  <kukuk@vt.uni-paderborn.de>

	* libc.map: Rename getname to getnetname.

1998-03-25 13:35  Ulrich Drepper  <drepper@cygnus.com>

	* manual/maint.texi: Use supported platform in examples.

	* manual/install.texi: Document some installation tips.

1998-03-25 10:56  Ulrich Drepper  <drepper@cygnus.com>

	* posix/wordexp.c: Fix some memory leaks and makes $* more efficient.
	Fix a bug so that it returns an error if a numeric parameter is
	unset and WRDE_UNDEF is set.
	Patch by Andreas Schwab and Tim Waugh.
	* posix/wordexp-test.c: Add new new test.

1998-03-25  Ulrich Drepper  <drepper@cygnus.com>

	* posix/regex.c (regex_compile): Last patch wasn't entirely
	correct.  Patch by Alain Magloire <alainm@rcsm.ece.mcgill.ca>.

1998-03-24  Andreas Schwab  <schwab@issan.informatik.uni-dortmund.de>

	* manual/filesys.texi (Scanning Directory Content): Fix typo.

1998-03-25 09:24  Bernd Schmidt  <crux@Pool.Informatik.RWTH-Aachen.DE>

	* sysdeps/i386/bits/string.h: Fix all assembler statements so that
	clobbered registers don't appear as operands.
This commit is contained in:
Ulrich Drepper 1998-03-25 15:21:09 +00:00
parent 0669867278
commit 68b5060455
13 changed files with 362 additions and 917 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

39
ChangeLog
View File

@ -1,3 +1,42 @@
1998-03-25 Ulrich Drepper <drepper@cygnus.com>
* glibcbug.in: Create files safely when mktemp is not available.
* sysdeps/unix/sysv/linux/adjtime.c: Make weak alias appear again.
Patch by a sun <asun@saul1.u.washington.edu>.
1998-03-25 Thorsten Kukuk <kukuk@vt.uni-paderborn.de>
* libc.map: Rename getname to getnetname.
1998-03-25 13:35 Ulrich Drepper <drepper@cygnus.com>
* manual/maint.texi: Use supported platform in examples.
* manual/install.texi: Document some installation tips.
1998-03-25 10:56 Ulrich Drepper <drepper@cygnus.com>
* posix/wordexp.c: Fix some memory leaks and makes $* more efficient.
Fix a bug so that it returns an error if a numeric parameter is
unset and WRDE_UNDEF is set.
Patch by Andreas Schwab and Tim Waugh.
* posix/wordexp-test.c: Add new new test.
1998-03-25 Ulrich Drepper <drepper@cygnus.com>
* posix/regex.c (regex_compile): Last patch wasn't entirely
correct. Patch by Alain Magloire <alainm@rcsm.ece.mcgill.ca>.
1998-03-24 Andreas Schwab <schwab@issan.informatik.uni-dortmund.de>
* manual/filesys.texi (Scanning Directory Content): Fix typo.
1998-03-25 09:24 Bernd Schmidt <crux@Pool.Informatik.RWTH-Aachen.DE>
* sysdeps/i386/bits/string.h: Fix all assembler statements so that
clobbered registers don't appear as operands.
1998-03-24 Ulrich Drepper <drepper@cygnus.com>
* posix/regex.c: Undefine ISASCII and ISPRINT before defining for

794
INSTALL
View File

@ -1,313 +1,6 @@
Library Maintenance
*******************
How to Install the GNU C Library
================================
Installation of the GNU C library is relatively simple, but usually
requires several GNU tools to be installed already.
To configure the GNU C library for your system, run the shell script
`configure' with `sh'. Use an argument which is the conventional GNU
name for your system configuration--for example, `sparc-sun-sunos4.1',
for a Sun 4 running SunOS 4.1. *Note Installation:
(gcc.info)Installation, for a full description of standard GNU
configuration names. If you omit the configuration name, `configure'
will try to guess one for you by inspecting the system it is running
on. It may or may not be able to come up with a guess, and the its
guess might be wrong. `configure' will tell you the canonical name of
the chosen configuration before proceeding.
Here are some options that you should specify (if appropriate) when
you run `configure':
`--with-binutils=DIRECTORY'
Use the binutils (assembler and linker) in `DIRECTORY', not the
ones the C compiler would default to. You could use this option if
the default binutils on your system cannot deal with all the
constructs in the GNU C library. (`configure' will detect the
problem and suppress these constructs, so the library will still
be usable, but functionality may be lost--for example, you can not
build a shared libc with old binutils.)
`--without-fp'
`--nfp'
Use this option if your computer lacks hardware floating-point
support and your operating system does not emulate an FPU.
`--prefix=DIRECTORY'
Install machine-independent data files in subdirectories of
`DIRECTORY'. (You can also set this in `configparms'; see below.)
The default is to install in `/usr/local'.
`--exec-prefix=DIRECTORY'
Install the library and other machine-dependent files in
subdirectories of `DIRECTORY'. (You can also set this in
`configparms'; see below.) The default is to use <prefix>/bin and
<prefix>/sbin.
`--enable-shared'
`--disable-shared'
Enable or disable building of an ELF shared library on systems that
support it. The default is to build the shared library on systems
using ELF when the GNU `binutils' are available.
`--enable-profile'
`--disable-profile'
Enable or disable building of the profiled C library, `-lc_p'. The
default is to build the profiled library. You may wish to disable
it if you don't plan to do profiling, because it doubles the build
time of compiling just the unprofiled static library.
`--enable-omitfp'
Enable building a highly-optimized but possibly undebuggable
static C library. This causes the normal static and shared (if
enabled) C libraries to be compiled with maximal optimization,
including the `-fomit-frame-pointer' switch that makes debugging
impossible on many machines, and without debugging information
(which makes the binaries substantially smaller). An additional
static library is compiled with no optimization and full debugging
information, and installed as `-lc_g'.
The simplest way to run `configure' is to do it in the directory
that contains the library sources. This prepares to build the library
in that very directory.
You can prepare to build the library in some other directory by going
to that other directory to run `configure'. In order to run configure,
you will have to specify a directory for it, like this:
mkdir sun4
cd sun4
../configure sparc-sun-sunos4.1
`configure' looks for the sources in whatever directory you specified
for finding `configure' itself. It does not matter where in the file
system the source and build directories are--as long as you specify the
source directory when you run `configure', you will get the proper
results.
This feature lets you keep sources and binaries in different
directories, and that makes it easy to build the library for several
different machines from the same set of sources. Simply create a build
directory for each target machine, and run `configure' in that
directory specifying the target machine's configuration name.
The library has a number of special-purpose configuration parameters.
These are defined in the file `Makeconfig'; see the comments in that
file for the details.
But don't edit the file `Makeconfig' yourself--instead, create a
file `configparms' in the directory where you are building the library,
and define in that file the parameters you want to specify.
`configparms' should *not* be an edited copy of `Makeconfig'; specify
only the parameters that you want to override. To see how to set these
parameters, find the section of `Makeconfig' that says "These are the
configuration variables." Then for each parameter that you want to
change, copy the definition from `Makeconfig' to your new `configparms'
file, and change the value as appropriate for your system.
It is easy to configure the GNU C library for cross-compilation by
setting a few variables in `configparms'. Set `CC' to the
cross-compiler for the target you configured the library for; it is
important to use this same `CC' value when running `configure', like
this: `CC=TARGET-gcc configure TARGET'. Set `BUILD_CC' to the compiler
to use for for programs run on the build system as part of compiling
the library. You may need to set `AR' and `RANLIB' to cross-compiling
versions of `ar' and `ranlib' if the native tools are not configured to
work with object files for the target you configured for.
Some of the machine-dependent code for some machines uses extensions
in the GNU C compiler, so you may need to compile the library with GCC.
(In fact, all of the existing complete ports require GCC.)
To build the library and related programs, type `make'. This will
produce a lot of output, some of which may look like errors from `make'
(but isn't). Look for error messages from `make' containing `***'.
Those indicate that something is really wrong.
To build and run some test programs which exercise some of the
library facilities, type `make check'. This will produce several files
with names like `PROGRAM.out'.
To format the `GNU C Library Reference Manual' for printing, type
`make dvi'. You need a working TeX installation to do this.
To install the library and its header files, and the Info files of
the manual, type `make install'. This will build things if necessary,
before installing them. If you want to install the files in a different
place than the one specified at configuration time you can specify a
value for the Makefile variable `install_root' on the command line.
This is useful to create chroot'ed environment or to prepare binary
releases.
Recommended Tools to Install the GNU C Library
----------------------------------------------
We recommend installing the following GNU tools before attempting to
build the GNU C library:
* `make' 3.76.1
You need the latest version of GNU `make'. Modifying the GNU C
Library to work with other `make' programs would be so hard that we
recommend you port GNU `make' instead. *Really.* We recommend
version GNU `make' version 3.75, 3.76.1 or later. Version 3.76 is
known to have a bug which only shows up in big projects like GNU
`libc'.
* GCC 2.7.2.3
On most platforms, the GNU C library can only be compiled with the
GNU C compiler. We recommend GCC version 2.7.2 or later; earlier
versions may have problems.
On PowerPC, GCC versions dated earlier than 970904 are known not
to work (they crash), including 2.7.2.
* `binutils' 2.8.1
Using the GNU `binutils' (assembler, linker, and related tools) is
preferable when possible, and they are required to build an ELF
shared C library. We recommend `binutils' version 2.8.1 or later;
earlier versions are known to have problems or to not support all
architectures.
* `texinfo' 3.11
To correctly translate and install the Texinfo documentation you
need this version of the `texinfo' package. Former versions did
not understand all the tags used in the document and also the
installation mechanisms for the info files was not present or
worked differently.
On some Debian Linux based systems the used `install-info' program
works differently. Here you have to run make like this:
make INSTALL_INFO=/path/to/GNU/install-info install
If you change any configuration file you will need also
* `autoconf' 2.12
and if you change any of the message translation files you will also
need
* `GNU gettext' 0.10 or later
If you upgrade your source tree using the patches made available you
probably will need those package above in any case.
Supported Configurations
------------------------
The GNU C Library currently supports configurations that match the
following patterns:
alpha-ANYTHING-linux
iX86-ANYTHING-gnu
iX86-ANYTHING-linux
m68k-ANYTHING-linux
powerpc-ANYTHING-linux
sparc64-ANYTHING-linux
Former releases of this library (version 1.09.1 and perhaps earlier
versions) used to run on the following configurations:
alpha-dec-osf1
alpha-ANYTHING-linuxecoff
iX86-ANYTHING-bsd4.3
iX86-ANYTHING-isc2.2
iX86-ANYTHING-isc3.N
iX86-ANYTHING-sco3.2
iX86-ANYTHING-sco3.2v4
iX86-ANYTHING-sysv
iX86-ANYTHING-sysv4
iX86-force_cpu386-none
iX86-sequent-bsd
i960-nindy960-none
m68k-hp-bsd4.3
m68k-mvme135-none
m68k-mvme136-none
m68k-sony-newsos3
m68k-sony-newsos4
m68k-sun-sunos4.N
mips-dec-ultrix4.N
mips-sgi-irix4.N
sparc-sun-solaris2.N
sparc-sun-sunos4.N
Since no one has volunteered to test and fix the above
configurations, these are not supported at the moment. It's expected
that these don't work anymore. Porting the library is not hard. If
you are interested in doing a port, please contact the glibc
maintainers by sending electronic mail to <bug-glibc@prep.ai.mit.edu>.
Each case of `iX86' can be `i386', `i486', `i586', or `i686'. All
of those configurations produce a library that can run on any of these
processors. The library will be optimized for the specified processor,
but will not use instructions not available on all of them.
While no other configurations are supported, there are handy aliases
for these few. (These aliases work in other GNU software as well.)
decstation
hp320-bsd4.3 hp300bsd
i486-gnu
i586-linux
i386-sco
i386-sco3.2v4
i386-sequent-dynix
i386-svr4
news
sun3-sunos4.N sun3
sun4-solaris2.N sun4-sunos5.N
sun4-sunos4.N sun4
Reporting Bugs
==============
There are probably bugs in the GNU C library. There are certainly
errors and omissions in this manual. If you report them, they will get
fixed. If you don't, no one will ever know about them and they will
remain unfixed for all eternity, if not longer.
To report a bug, first you must find it. Hopefully, this will be the
hard part. Once you've found a bug, make sure it's really a bug. A
good way to do this is to see if the GNU C library behaves the same way
some other C library does. If so, probably you are wrong and the
libraries are right (but not necessarily). If not, one of the libraries
is probably wrong.
Once you're sure you've found a bug, try to narrow it down to the
smallest test case that reproduces the problem. In the case of a C
library, you really only need to narrow it down to one library function
call, if possible. This should not be too difficult.
The final step when you have a simple test case is to report the bug.
When reporting a bug, send your test case, the results you got, the
results you expected, what you think the problem might be (if you've
thought of anything), your system type, and the version of the GNU C
library which you are using. Also include the files `config.status'
and `config.make' which are created by running `configure'; they will
be in whatever directory was current when you ran `configure'.
If you think you have found some way in which the GNU C library does
not conform to the ISO and POSIX standards (*note Standards and
Portability::.), that is definitely a bug. Report it!
Send bug reports to the Internet address <bug-glibc@prep.ai.mit.edu>
or the UUCP path <mit-eddie!prep.ai.mit.edu!bug-glibc>. If you have
other problems with installation or use, please report those as well.
If you are not sure how a function should behave, and this manual
doesn't tell you, that's a bug in the manual. Report that too! If the
function's behavior disagrees with the manual, then either the library
or the manual has a bug, so report the disagreement. If you find any
errors or omissions in this manual, please report them to the Internet
address <bug-glibc-manual@prep.ai.mit.edu> or the UUCP path
<mit-eddie!prep.ai.mit.edu!bug-glibc-manual>.
Adding New Functions
====================
@ -463,8 +156,8 @@ function is used.
Some rare functions are only useful on specific systems and aren't
defined at all on others; these do not appear anywhere in the
system-independent source code or makefiles (including the `generic'
and `stub' directories), only in the system-dependent `Makefile' in the
specific system's subdirectory.
directory), only in the system-dependent `Makefile' in the specific
system's subdirectory.
If you come across a file that is in one of the main source
directories (`string', `stdio', etc.), and you want to write a machine-
@ -560,73 +253,56 @@ manufacturer's name, and the operating system. `configure' uses these
to pick the list of system-dependent directories to look for. If the
`--nfp' option is *not* passed to `configure', the directory
`MACHINE/fpu' is also used. The operating system often has a "base
operating system"; for example, if the operating system is `sunos4.1',
the base operating system is `unix/bsd'. The algorithm used to pick
the list of directories is simple: `configure' makes a list of the base
operating system"; for example, if the operating system is `Linux', the
base operating system is `unix/sysv'. The algorithm used to pick the
list of directories is simple: `configure' makes a list of the base
operating system, manufacturer, CPU type, and operating system, in that
order. It then concatenates all these together with slashes in
between, to produce a directory name; for example, the configuration
`sparc-sun-sunos4.1' results in `unix/bsd/sun/sparc/sunos4.1'.
`configure' then tries removing each element of the list in turn, so
`unix/bsd/sparc' and `sun/sparc' are also tried, among others. Since
`i686-linux-gnu' results in `unix/sysv/linux/i386/i686'. `configure'
then tries removing each element of the list in turn, so
`unix/sysv/linux' and `unix/sysv' are also tried, among others. Since
the precise version number of the operating system is often not
important, and it would be very inconvenient, for example, to have
identical `sunos4.1.1' and `sunos4.1.2' directories, `configure' tries
identical `irix6.2' and `irix6.3' directories, `configure' tries
successively less specific operating system names by removing trailing
suffixes starting with a period.
As an example, here is the complete list of directories that would be
tried for the configuration `sparc-sun-sunos4.1' (without the `--nfp'
option):
tried for the configuration `i686-linux-gnu' (with the `crypt' and
`linuxthreads' add-on):
sparc/fpu
unix/bsd/sun/sunos4.1/sparc
unix/bsd/sun/sunos4.1
unix/bsd/sun/sunos4/sparc
unix/bsd/sun/sunos4
unix/bsd/sun/sunos/sparc
unix/bsd/sun/sunos
unix/bsd/sun/sparc
unix/bsd/sun
unix/bsd/sunos4.1/sparc
unix/bsd/sunos4.1
unix/bsd/sunos4/sparc
unix/bsd/sunos4
unix/bsd/sunos/sparc
unix/bsd/sunos
unix/bsd/sparc
unix/bsd
unix/sun/sunos4.1/sparc
unix/sun/sunos4.1
unix/sun/sunos4/sparc
unix/sun/sunos4
unix/sun/sunos/sparc
unix/sun/sunos
unix/sun/sparc
unix/sun
unix/sunos4.1/sparc
unix/sunos4.1
unix/sunos4/sparc
unix/sunos4
unix/sunos/sparc
unix/sunos
unix/sparc
unix
sun/sunos4.1/sparc
sun/sunos4.1
sun/sunos4/sparc
sun/sunos4
sun/sunos/sparc
sun/sunos
sun/sparc
sun
sunos4.1/sparc
sunos4.1
sunos4/sparc
sunos4
sunos/sparc
sunos
sparc
sysdeps/i386/elf
crypt/sysdeps/unix
linuxthreads/sysdeps/unix/sysv/linux
linuxthreads/sysdeps/pthread
linuxthreads/sysdeps/unix/sysv
linuxthreads/sysdeps/unix
linuxthreads/sysdeps/i386/i686
linuxthreads/sysdeps/i386
linuxthreads/sysdeps/pthread/no-cmpxchg
sysdeps/unix/sysv/linux/i386
sysdeps/unix/sysv/linux
sysdeps/gnu
sysdeps/unix/common
sysdeps/unix/mman
sysdeps/unix/inet
sysdeps/unix/sysv/i386/i686
sysdeps/unix/sysv/i386
sysdeps/unix/sysv
sysdeps/unix/i386
sysdeps/unix
sysdeps/posix
sysdeps/i386/i686
sysdeps/i386/i486
sysdeps/libm-i387/i686
sysdeps/i386/fpu
sysdeps/libm-i387
sysdeps/i386
sysdeps/wordsize-32
sysdeps/ieee754
sysdeps/libm-ieee754
sysdeps/generic
Different machine architectures are conventionally subdirectories at
the top level of the `sysdeps' directory tree. For example,
@ -651,6 +327,15 @@ hierarchy that are not for particular machine architectures.
this directory is referred to in the `Implies' file in a machine
architecture-specific directory, such as `m68k/Implies'.
`libm-ieee754'
This directory contains an implementation of a mathematical library
usable on platforms which use IEEE 754 conformant floating-point
arithmetic.
`libm-i387'
This is a special case. Ideally the code should be in
`sysdeps/i386/fpu' but for various reasons it is kept aside.
`posix'
This directory contains implementations of things in the library in
terms of POSIX.1 functions. This includes some of the POSIX.1
@ -670,8 +355,8 @@ hierarchy that are not for particular machine architectures.
`unix/inet'
This directory is for `socket' and related functions on Unix
systems. The `inet' top-level subdirectory is enabled by
`unix/inet/Subdirs'. `unix/common' implies `unix/inet'.
systems. `unix/inet/Subdirs' enables the `inet' top-level
subdirectory. `unix/common' implies `unix/inet'.
`mach'
This is the directory for things based on the Mach microkernel
@ -695,10 +380,11 @@ subdirectories (and subdirectory trees) for various Unix variants.
The functions which are system calls in most Unix systems are
implemented in assembly code, which is generated automatically from
specifications in the file `sysdeps/unix/syscalls.list'. Some special
system calls are implemented in files that are named with a suffix of
`.S'; for example, `_exit.S'. Files ending in `.S' are run through the
C preprocessor before being fed to the assembler.
specifications in files named `syscalls.list'. There are several such
files, one in `sysdeps/unix' and others in its subdirectories. Some
special system calls are implemented in files that are named with a
suffix of `.S'; for example, `_exit.S'. Files ending in `.S' are run
through the C preprocessor before being fed to the assembler.
These files all use a set of macros that should be defined in
`sysdep.h'. The `sysdep.h' file in `sysdeps/unix' partially defines
@ -707,368 +393,12 @@ for the particular machine and operating system variant. See
`sysdeps/unix/sysdep.h' and the machine-specific `sysdep.h'
implementations to see what these macros are and what they should do.
The system-specific makefile for the `unix' directory (that is, the
file `sysdeps/unix/Makefile') gives rules to generate several files
from the Unix system you are building the library on (which is assumed
to be the target system you are building the library *for*). All the
The system-specific makefile for the `unix' directory
(`sysdeps/unix/Makefile') gives rules to generate several files from
the Unix system you are building the library on (which is assumed to be
the target system you are building the library *for*). All the
generated files are put in the directory where the object files are
kept; they should not affect the source tree itself. The files
generated are `ioctls.h', `errnos.h', `sys/param.h', and `errlist.c'
(for the `stdio' section of the library).
Contributors to the GNU C Library
=================================
The GNU C library was written originally by Roland McGrath. Some
parts of the library were contributed or worked on by other people.
* The `getopt' function and related code were written by Richard
Stallman, David J. MacKenzie, and Roland McGrath.
* The merge sort function `qsort' was written by Michael J. Haertel.
* The quick sort function used as a fallback by `qsort' was written
by Douglas C. Schmidt.
* The memory allocation functions `malloc', `realloc' and `free' and
related code were written by Michael J. Haertel.
* Fast implementations of many of the string functions (`memcpy',
`strlen', etc.) were written by Torbj"orn Granlund.
* The `tar.h' header file was written by David J. MacKenzie.
* The port to the MIPS DECStation running Ultrix 4
(`mips-dec-ultrix4') was contributed by Brendan Kehoe and Ian
Lance Taylor.
* The DES encryption function `crypt' and related functions were
contributed by Michael Glad.
* The `ftw' and `nftw' function was contributed by Ulrich Drepper.
* The startup code to support SunOS shared libraries was contributed
by Tom Quinn.
* The `mktime' function was contributed by Paul Eggert.
* The port to the Sequent Symmetry running Dynix version 3
(`i386-sequent-bsd') was contributed by Jason Merrill.
* The timezone support code is derived from the public-domain
timezone package by Arthur David Olson and his many contributors.
* The port to the DEC Alpha running OSF/1 (`alpha-dec-osf1') was
contributed by Brendan Kehoe, using some code written by Roland
McGrath.
* The port to SGI machines running Irix 4 (`mips-sgi-irix4') was
contributed by Tom Quinn.
* The port of the Mach and Hurd code to the MIPS architecture
(`mips-ANYTHING-gnu') was contributed by Kazumoto Kojima.
* The floating-point printing function used by `printf' and friends
and the floating-point reading function used by `scanf', `strtod'
and friends were written by Ulrich Drepper. The multi-precision
integer functions used in those functions are taken from GNU MP,
which was contributed by Torbj"orn Granlund.
* The internationalization support in the library, and the support
programs `locale' and `localedef', were written by Ulrich Drepper.
Ulrich Drepper adapted the support code for message catalogs
(`libintl.h', etc.) from the GNU `gettext' package, which he also
wrote. He also contributed the `catgets' support and the entire
suite of multi-byte and wide-character support functions
(`wctype.h', `wchar.h', etc.).
* The implementations of the `nsswitch.conf' mechanism and the files
and DNS backends for it were designed and written by Ulrich
Drepper and Roland McGrath, based on a backend interface defined
by Peter Eriksson.
* The port to Linux i386/ELF (`i386-ANYTHING-linux') was contributed
by Ulrich Drepper, based in large part on work done in Hongjiu
Lu's Linux version of the GNU C Library.
* The port to Linux/m68k (`m68k-ANYTHING-linux') was contributed by
Andreas Schwab.
* The ports to Linux/ARM (`arm-ANYTHING-linuxaout') and ARM
standalone (`arm-ANYTHING-none'), as well as parts of the IPv6
support code, were contributed by Philip Blundell.
* Richard Henderson contributed the ELF dynamic linking code and
other support for the Alpha processor.
* David Mosberger-Tang contributed the port to Linux/Alpha
(`alpha-ANYTHING-linux').
* The port to Linux on PowerPC (`powerpc-ANYTHING-linux') was
contributed by Geoffrey Keating.
* Miles Bader wrote the argp argument-parsing package, and the
argz/envz interfaces.
* Stephen R. van den Berg contributed a highly-optimized `strstr'
function.
* Ulrich Drepper contributed the `hsearch' and `drand48' families of
functions; reentrant `...`_r'' versions of the `random' family;
System V shared memory and IPC support code; and several
highly-optimized string functions for iX86 processors.
* The math functions are taken from `fdlibm-5.1' by Sun
Microsystems, as modified by J.T. Conklin, Ian Lance Taylor,
Ulrich Drepper, Andreas Schwab, and Roland McGrath.
* The `libio' library used to implement `stdio' functions on some
platforms was written by Per Bothner and modified by Ulrich
Drepper.
* The Internet-related code (most of the `inet' subdirectory) and
several other miscellaneous functions and header files have been
included from 4.4 BSD with little or no modification.
All code incorporated from 4.4 BSD is under the following
copyright:
Copyright (C) 1991 Regents of the University of California.
All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the
following conditions are met:
1. Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
2. Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
materials provided with the distribution.
3. All advertising materials mentioning features or use of
this software must display the following acknowledgement:
This product includes software developed by the
University of California, Berkeley and its
contributors.
4. Neither the name of the University nor the names of its
contributors may be used to endorse or promote products
derived from this software without specific prior
written permission.
THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
* The random number generation functions `random', `srandom',
`setstate' and `initstate', which are also the basis for the
`rand' and `srand' functions, were written by Earl T. Cohen for
the University of California at Berkeley and are copyrighted by the
Regents of the University of California. They have undergone minor
changes to fit into the GNU C library and to fit the ISO C
standard, but the functional code is Berkeley's.
* The Internet resolver code is taken directly from BIND 4.9.5,
which is under both the Berkeley copyright above and also:
Portions Copyright (C) 1993 by Digital Equipment Corporation.
Permission to use, copy, modify, and distribute this software
for any purpose with or without fee is hereby granted,
provided that the above copyright notice and this permission
notice appear in all copies, and that the name of Digital
Equipment Corporation not be used in advertising or publicity
pertaining to distribution of the document or software
without specific, written prior permission.
THE SOFTWARE IS PROVIDED "AS IS" AND DIGITAL EQUIPMENT CORP.
DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS. IN NO EVENT SHALL DIGITAL EQUIPMENT CORPORATION BE
LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL
DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE
OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION
WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
* The code to support Sun RPC is taken verbatim from Sun's
RPCSRC-4.0 distribution, and is covered by this copyright:
Copyright (C) 1984, Sun Microsystems, Inc.
Sun RPC is a product of Sun Microsystems, Inc. and is
provided for unrestricted use provided that this legend is
included on all tape media and as a part of the software
program in whole or part. Users may copy or modify Sun RPC
without charge, but are not authorized to license or
distribute it to anyone else except as part of a product or
program developed by the user.
SUN RPC IS PROVIDED AS IS WITH NO WARRANTIES OF ANY KIND
INCLUDING THE WARRANTIES OF DESIGN, MERCHANTIBILITY AND
FITNESS FOR A PARTICULAR PURPOSE, OR ARISING FROM A COURSE OF
DEALING, USAGE OR TRADE PRACTICE.
Sun RPC is provided with no support and without any
obligation on the part of Sun Microsystems, Inc. to assist in
its use, correction, modification or enhancement.
SUN MICROSYSTEMS, INC. SHALL HAVE NO LIABILITY WITH RESPECT
TO THE INFRINGEMENT OF COPYRIGHTS, TRADE SECRETS OR ANY
PATENTS BY SUN RPC OR ANY PART THEREOF.
In no event will Sun Microsystems, Inc. be liable for any
lost revenue or profits or other special, indirect and
consequential damages, even if Sun has been advised of the
possibility of such damages.
Sun Microsystems, Inc.
2550 Garcia Avenue
Mountain View, California 94043
* Some of the support code for Mach is taken from Mach 3.0 by CMU,
and is under the following copyright terms:
Mach Operating System
Copyright (C) 1991,1990,1989 Carnegie Mellon University
All Rights Reserved.
Permission to use, copy, modify and distribute this software
and its documentation is hereby granted, provided that both
the copyright notice and this permission notice appear in all
copies of the software, derivative works or modified
versions, and any portions thereof, and that both notices
appear in supporting documentation.
CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS
IS" CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF
ANY KIND FOR ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF
THIS SOFTWARE.
Carnegie Mellon requests users of this software to return to
Software Distribution Coordinator
School of Computer Science
Carnegie Mellon University
Pittsburgh PA 15213-3890
or <Software.Distribution@CS.CMU.EDU> any improvements or
extensions that they make and grant Carnegie Mellon the
rights to redistribute these changes.
* The code for the database library `libdb' comes from the 2.3
release of Berkeley DB. That code is under the same copyright as
4.4 BSD and also:
Copyright (C) 1990, 1993, 1994, 1995, 1996, 1997
Sleepycat Software. All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the
following conditions are met:
1. Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
2. Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
materials provided with the distribution.
3. Redistributions in any form must be accompanied by
information on how to obtain complete source code for
the DB software and any accompanying software that uses
the DB software. The source code must either be
included in the distribution or be available for no more
than the cost of distribution plus a nominal fee, and
must be freely redistributable under reasonable
conditions. For an executable file, complete source
code means the source code for all modules it contains.
It does not mean source code for modules or files that
typically accompany the operating system on which the
executable file runs, e.g., standard library modules or
system header files.
THIS SOFTWARE IS PROVIDED BY SLEEPYCAT SOFTWARE "AS IS" AND
ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL
SLEEPYCAT SOFTWARE BE LIABLE FOR ANY DIRECT, INDIRECT,
INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
(INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY,
WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.
Portions copyright (C) 1995, 1996
The President and Fellows of Harvard University.
All rights reserved.
Redistribution and use in source and binary forms, with or
without modification, are permitted provided that the
following conditions are met:
1. Redistributions of source code must retain the above
copyright notice, this list of conditions and the
following disclaimer.
2. Redistributions in binary form must reproduce the above
copyright notice, this list of conditions and the
following disclaimer in the documentation and/or other
materials provided with the distribution.
3. All advertising materials mentioning features or use of
this software must display the following acknowledgement:
This product includes software developed by
Harvard University and its contributors.
4. Neither the name of the University nor the names of its
contributors may be used to endorse or promote products
derived from this software without specific prior
written permission.
THIS SOFTWARE IS PROVIDED BY HARVARD AND ITS CONTRIBUTORS "AS
IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND
FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT
SHALL HARVARD OR ITS CONTRIBUTORS BE LIABLE FOR ANY DIRECT,
INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS;
OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
(INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY
OF SUCH DAMAGE.
For a license to use, redistribute or sell DB software under
conditions other than those described above, or to purchase
support for this software, please contact Sleepycat Software
at
Sleepycat Software
394 E. Riding Dr.
Carlisle, MA 01741
USA
+1-508-287-4781
or <db@sleepycat.com>.

2
configure vendored
View File

@ -1685,7 +1685,7 @@ fi
echo $ac_n "checking compiler version""... $ac_c" 1>&6
echo "configure:1687: checking compiler version" >&5
case `${CC-cc} -v 2>&1` in
*egcs-2.91.* | *egcs-1.0.[2-9]* | *egcs-1.1* | *2.8.[1-9]* | *2.9.[0-9] )
*egcs-2.91.* | *egcs-1.0.[2-9]* | *egcs-1.1* | *2.8.[1-9]* | *2.9.[0-9]*)
cc_is_recent="ok"
;;
*)

6
glibcbug.in
View File

@ -24,15 +24,17 @@ STDIO="@stdio@"
PATH=/bin:/usr/bin:/usr/local/bin:$PATH
export PATH
TEMP=`mktemp -q /tmp/glibcbugXXXXXX`
TEMP=`mktemp -q /tmp/glibcbugXXXXXX 2>/dev/null`
if test $? -ne 0; then
TEMP=/tmp/glibcbug.$$
echo > $TEMP
chmod 600 $TEMP
fi
TEMPx=`mktemp -q /tmp/glibcbugXXXXXX`
TEMPx=`mktemp -q /tmp/glibcbugXXXXXX 2>/dev/null`
if test $? -ne 0; then
TEMPx=/tmp/glibcbug.$$.x
echo > $TEMPx
chmod 600 $TEMPx
fi
BUGADDR=${1-$BUGGLIBC}

4
libc.map
View File

@ -498,8 +498,8 @@ GLIBC_2.1 {
fopen; fclose; fdopen;
# g*
gai_strerror; getcontext; getdate; getdate_r; getitimer; getname;
getnameinfo; getpt; getrlimit64; getrusage; gettimeofday;
gai_strerror; getcontext; getdate; getdate_r; getitimer; getnameinfo;
getnetname; getpt; getrlimit64; getrusage; gettimeofday;
getutxent; getutxid; getutxline; grantpt;
# New special glibc functions.

2
manual/filesys.texi
View File

@ -541,7 +541,7 @@ uses the @code{strverscmp} function internally.
It is important not to mix the use of @code{scandir} and the 64 bits
comparison functions or vice versa. There are systems on which this
work but on others it will fail miserably.
works but on others it will fail miserably.
@node Simple Directory Lister Mark II
@subsection Simple Program to List a Directory, Mark II

34
manual/install.texi
View File

@ -8,6 +8,7 @@
@menu
* Tools for Installation:: We recommend using these tools to build.
* Supported Configurations:: What systems the GNU C library runs on.
* Tips for Installation:: Useful hints for the installation.
* Reporting Bugs:: How to report bugs (if you want to
get them fixed) and other troubles
you may have with the GNU C library.
@ -325,6 +326,39 @@ sun4-solaris2.@var{n} sun4-sunos5.@var{n}
sun4-sunos4.@var{n} sun4
@end smallexample
@node Tips for Installation
@appendixsec Useful hints for the installation
There are a some more or less obvious methods one should know when
compiling GNU libc:
@itemize @bullet
@item
Better never compile in the source directory. Create a new directory
and run the @file{configure} from there. Everything should happen
automagically.
@item
You can use the @code{-j} option of GNU make by changing the line
specifying @code{PARALLELMAKE} in the Makefile generated during the
configuration.
It is not useful to start the @code{make} process using the @code{-j}
option since this option is not propagated down to the sub-@code{make}s.
@item
If you made some changes after a complete build and only want to check
these changes run @code{make} while specifying the list of subdirs it
has to visit.
@smallexample
make subdirs="nss elf"
@end smallexample
The above build run will only visit the subdirectories @file{nss} and
@file{elf}. Beside this it updates the @file{libc} files itself.
@end itemize
@node Reporting Bugs
@appendixsec Reporting Bugs
@cindex reporting bugs

105
manual/maint.texi
View File

@ -296,74 +296,57 @@ these to pick the list of system-dependent directories to look for. If
the @samp{--nfp} option is @emph{not} passed to @file{configure}, the
directory @file{@var{machine}/fpu} is also used. The operating system
often has a @dfn{base operating system}; for example, if the operating
system is @samp{sunos4.1}, the base operating system is @samp{unix/bsd}.
system is @samp{Linux}, the base operating system is @samp{unix/sysv}.
The algorithm used to pick the list of directories is simple:
@file{configure} makes a list of the base operating system,
manufacturer, CPU type, and operating system, in that order. It then
concatenates all these together with slashes in between, to produce a
directory name; for example, the configuration @w{@samp{sparc-sun-sunos4.1}}
results in @file{unix/bsd/sun/sparc/sunos4.1}. @file{configure} then
directory name; for example, the configuration @w{@samp{i686-linux-gnu}}
results in @file{unix/sysv/linux/i386/i686}. @file{configure} then
tries removing each element of the list in turn, so
@file{unix/bsd/sparc} and @file{sun/sparc} are also tried, among others.
@file{unix/sysv/linux} and @file{unix/sysv} are also tried, among others.
Since the precise version number of the operating system is often not
important, and it would be very inconvenient, for example, to have
identical @file{sunos4.1.1} and @file{sunos4.1.2} directories,
identical @file{irix6.2} and @file{irix6.3} directories,
@file{configure} tries successively less specific operating system names
by removing trailing suffixes starting with a period.
As an example, here is the complete list of directories that would be
tried for the configuration @w{@samp{sparc-sun-sunos4.1}} (without the
@w{@samp{--nfp}} option):
tried for the configuration @w{@samp{i686-linux-gnu}} (with the
@file{crypt} and @file{linuxthreads} add-on):
@smallexample
sparc/fpu
unix/bsd/sun/sunos4.1/sparc
unix/bsd/sun/sunos4.1
unix/bsd/sun/sunos4/sparc
unix/bsd/sun/sunos4
unix/bsd/sun/sunos/sparc
unix/bsd/sun/sunos
unix/bsd/sun/sparc
unix/bsd/sun
unix/bsd/sunos4.1/sparc
unix/bsd/sunos4.1
unix/bsd/sunos4/sparc
unix/bsd/sunos4
unix/bsd/sunos/sparc
unix/bsd/sunos
unix/bsd/sparc
unix/bsd
unix/sun/sunos4.1/sparc
unix/sun/sunos4.1
unix/sun/sunos4/sparc
unix/sun/sunos4
unix/sun/sunos/sparc
unix/sun/sunos
unix/sun/sparc
unix/sun
unix/sunos4.1/sparc
unix/sunos4.1
unix/sunos4/sparc
unix/sunos4
unix/sunos/sparc
unix/sunos
unix/sparc
unix
sun/sunos4.1/sparc
sun/sunos4.1
sun/sunos4/sparc
sun/sunos4
sun/sunos/sparc
sun/sunos
sun/sparc
sun
sunos4.1/sparc
sunos4.1
sunos4/sparc
sunos4
sunos/sparc
sunos
sparc
sysdeps/i386/elf
crypt/sysdeps/unix
linuxthreads/sysdeps/unix/sysv/linux
linuxthreads/sysdeps/pthread
linuxthreads/sysdeps/unix/sysv
linuxthreads/sysdeps/unix
linuxthreads/sysdeps/i386/i686
linuxthreads/sysdeps/i386
linuxthreads/sysdeps/pthread/no-cmpxchg
sysdeps/unix/sysv/linux/i386
sysdeps/unix/sysv/linux
sysdeps/gnu
sysdeps/unix/common
sysdeps/unix/mman
sysdeps/unix/inet
sysdeps/unix/sysv/i386/i686
sysdeps/unix/sysv/i386
sysdeps/unix/sysv
sysdeps/unix/i386
sysdeps/unix
sysdeps/posix
sysdeps/i386/i686
sysdeps/i386/i486
sysdeps/libm-i387/i686
sysdeps/i386/fpu
sysdeps/libm-i387
sysdeps/i386
sysdeps/wordsize-32
sysdeps/ieee754
sysdeps/libm-ieee754
sysdeps/generic
@end smallexample
Different machine architectures are conventionally subdirectories at the
@ -391,6 +374,15 @@ where the C type @code{float} is IEEE 754 single-precision format, and
directory is referred to in the @file{Implies} file in a machine
architecture-specific directory, such as @file{m68k/Implies}.
@item libm-ieee754
This directory contains an implementation of a mathematical library
usable on platforms which use @w{IEEE 754} conformant floating-point
arithmetic.
@item libm-i387
This is a special case. Ideally the code should be in
@file{sysdeps/i386/fpu} but for various reasons it is kept aside.
@item posix
This directory contains implementations of things in the library in
terms of @sc{POSIX.1} functions. This includes some of the @sc{POSIX.1}
@ -466,6 +458,9 @@ generated are @file{ioctls.h}, @file{errnos.h}, @file{sys/param.h}, and
@c ??? This section is really short now. Want to keep it? --roland
@c It's not anymore true. glibc 2.1 cannot be used with K&R compilers.
@c --drepper
Although the GNU C library implements the @w{ISO C} library facilities, you
@emph{can} use the GNU C library with traditional, ``pre-ISO'' C
compilers. However, you need to be careful because the content and

4
posix/regex.c
View File

@ -2171,14 +2171,14 @@ regex_compile (pattern, size, syntax, bufp)
for (;;)
{
PATFETCH (c);
if (c == ':' || c == ']' || !isalpha (c) || p == pend
if ((c == ':' && *p == ']') || p == pend
|| c1 == CHAR_CLASS_MAX_LENGTH)
break;
str[c1++] = c;
}
str[c1] = '\0';
/* If isn't a word bracketed by `[:' and:`]':
/* If isn't a word bracketed by `[:' and `:]':
undo the ending character, the letters, and leave
the leading `:' and `[' (but set bits for them). */
if (c == ':' && *p == ']')

1
posix/wordexp-test.c
View File

@ -138,6 +138,7 @@ struct test_case_struct
{ WRDE_BADCHAR, NULL, "close-brace}", 0, 0, { NULL, } },
{ WRDE_CMDSUB, NULL, "$(ls)", WRDE_NOCMD, 0, { NULL, } },
{ WRDE_BADVAL, NULL, "$var", WRDE_UNDEF, 0, { NULL, } },
{ WRDE_BADVAL, NULL, "$9", WRDE_UNDEF, 0, { NULL, } },
{ WRDE_SYNTAX, NULL, "$[50+20))", 0, 0, { NULL, } },
{ WRDE_SYNTAX, NULL, "${%%noparam}", 0, 0, { NULL, } },
{ WRDE_SYNTAX, NULL, "${missing-brace", 0, 0, { NULL, } },

99
posix/wordexp.c
View File

@ -1147,7 +1147,7 @@ parse_param (char **word, size_t *word_length, size_t *max_length,
switch (words[*offset])
{
case '}':
/* Evalute. */
/* Evaluate. */
goto envsubst;
case '#':
@ -1295,36 +1295,23 @@ envsubst:
/* Is it `$*' or `$@' (unquoted) ? */
else if (*env == '*' || (*env == '@' && !quoted))
{
size_t plist_len = 1;
size_t plist_len = 0;
int p;
char *end;
/* Build up value parameter by parameter (copy them) */
for (p = 1; __libc_argv[p]; ++p)
plist_len += strlen (__libc_argv[p]) + 1; /* for space */
value = malloc (plist_len);
if (value == NULL)
goto no_space;
end = value;
*end = 0;
for (p = 1; __libc_argv[p]; ++p)
{
char *old_pointer = value;
size_t argv_len = strlen (__libc_argv[p]);
size_t old_plist_len = plist_len;
if (value)
value[plist_len - 1] = 0;
plist_len += 1 + argv_len;
/* First realloc will act as malloc because value is
* initialised to NULL. */
value = realloc (value, plist_len); /* ### re-work this */
if (value == NULL)
{
free (old_pointer);
return WRDE_NOSPACE;
}
memcpy (&value[old_plist_len - 1], __libc_argv[p], argv_len + 1);
if (__libc_argv[p + 1])
{
value[plist_len - 1] = '\0';
value[plist_len - 2] = ' ';
}
if (p > 1)
*end++ = ' ';
end = __stpcpy (end, __libc_argv[p]);
}
free_value = 1;
@ -1336,11 +1323,7 @@ envsubst:
/* Each parameter is a separate word ("$@") */
if (__libc_argc == 2)
{
value = __strdup (__libc_argv[1]);
if (value == NULL)
goto no_space;
}
value = __libc_argv[1];
else if (__libc_argc > 2)
{
int p;
@ -1361,8 +1344,6 @@ envsubst:
/* Start a new word with the last parameter. */
*word = w_newword (word_length, max_length);
value = __strdup (__libc_argv[p]);
if (value == NULL)
goto no_space;
}
else
{
@ -1373,11 +1354,16 @@ envsubst:
}
}
else
value = getenv (env);
if (value == NULL && (flags & WRDE_UNDEF))
{
value = getenv (env);
if (value == NULL && (flags & WRDE_UNDEF))
/* Variable not defined. */
return WRDE_BADVAL;
/* Variable not defined. */
if (pattern)
free (pattern);
if (env)
free (env);
return WRDE_BADVAL;
}
if (action != ACT_NONE)
@ -1408,7 +1394,19 @@ envsubst:
if (fnmatch (pattern, value, 0) != FNM_NOMATCH)
{
*p = c;
value = p;
if (free_value)
{
char *newval = __strdup (p);
if (newval == NULL)
{
free (value);
goto no_space;
}
free (value);
value = newval;
}
else
value = p;
break;
}
*p = c;
@ -1424,7 +1422,19 @@ envsubst:
if (fnmatch (pattern, value, 0) != FNM_NOMATCH)
{
*p = c;
value = p;
if (free_value)
{
char *newval = __strdup (p);
if (newval == NULL)
{
free (value);
goto no_space;
}
free (value);
value = newval;
}
else
value = p;
break;
}
*p = c;
@ -1519,6 +1529,8 @@ envsubst:
free (env);
free (pattern);
if (free_value)
free (value);
return error;
case ACT_NULL_SUBST:
@ -1531,6 +1543,8 @@ envsubst:
/* Substitute NULL */
free (env);
free (pattern);
if (free_value)
free (value);
return 0;
}
@ -1540,6 +1554,9 @@ envsubst:
wordexp_t we;
int i;
if (free_value)
free (value);
if (quoted)
{
/* No field-splitting is allowed, so imagine
@ -1622,6 +1639,8 @@ envsubst:
/* Substitute NULL */
free (env);
free (pattern);
if (free_value)
free (value);
return 0;
case ACT_NULL_ASSIGN:
@ -1634,6 +1653,8 @@ envsubst:
/* Substitute NULL */
free (env);
free (pattern);
if (free_value)
free (value);
return 0;
}

186
sysdeps/i386/bits/string.h
View File

@ -48,6 +48,7 @@
__STRING_INLINE void *
__memcpy_c (void *__dest, __const void *__src, size_t __n)
{
unsigned long int __d0, __d1, __d2;
switch (__n)
{
case 0:
@ -108,9 +109,9 @@ __memcpy_c (void *__dest, __const void *__src, size_t __n)
("cld\n\t" \
"rep; movsl" \
x \
: /* no outputs */ \
: "c" (__n / 4), "D" (__dest), "S" (__src) \
: "cx", "di", "si", "memory");
: "=&c" (__d0), "=&D" (__d1), "=&S" (__d2) \
: "0" (__n / 4), "1" (__dest), "2" (__src) \
: "memory");
switch (__n % 4)
{
@ -137,24 +138,25 @@ __memcpy_c (void *__dest, __const void *__src, size_t __n)
__STRING_INLINE void *
memmove (void *__dest, __const void *__src, size_t __n)
{
unsigned long int __d0, __d1, __d2;
if (__dest < __src)
__asm__ __volatile__
("cld\n\t"
"rep\n\t"
"movsb"
: /* no output */
: "c" (__n), "S" (__src),"D" (__dest)
: "cx", "si", "di");
: "=&c" (__d0), "=&S" (__d1), "=&D" (__d2)
: "0" (__n), "1" (__src), "2" (__dest)
: "memory");
else
__asm__ __volatile__
("std\n\t"
"rep\n\t"
"movsb\n\t"
"cld"
: /* no output */
: "c" (__n), "S" (__n - 1 + (const char *) __src),
"D" (__n - 1 + (char *) __dest)
: "cx", "si", "di", "memory");
: "=&c" (__d0), "=&S" (__d1), "=&D" (__d2)
: "0" (__n), "1" (__n - 1 + (const char *) __src),
"2" (__n - 1 + (char *) __dest)
: "memory");
return __dest;
}
@ -171,6 +173,7 @@ memmove (void *__dest, __const void *__src, size_t __n)
__STRING_INLINE void *
__memset_cc (void *__s, unsigned long int __pattern, size_t __n)
{
unsigned long int __d0, __d1;
switch (__n)
{
case 0:
@ -194,9 +197,9 @@ __memset_cc (void *__s, unsigned long int __pattern, size_t __n)
("cld\n\t" \
"rep; stosl" \
x \
: /* no outputs */ \
: "a" (__pattern),"c" (__n / 4), "D" (__s) \
: "cx", "di", "memory")
: "=&c" (__d0), "=&D" (__d1) \
: "a" (__pattern),"0" (__n / 4), "1" (__s) \
: "memory")
switch (__n % 4)
{
@ -219,32 +222,34 @@ __memset_cc (void *__s, unsigned long int __pattern, size_t __n)
__STRING_INLINE void *
__memset_cg (void *__s, unsigned long __c, size_t __n)
{
unsigned long int __d0, __d1;
__asm__ __volatile__
("cld\n\t"
"rep; stosl\n\t"
"testb $2,%b1\n\t"
"testb $2,%b3\n\t"
"je 1f\n\t"
"stosw\n"
"1:\n\t"
"testb $1,%b1\n\t"
"testb $1,%b3\n\t"
"je 2f\n\t"
"stosb\n"
"2:"
: /* no output */
: "a" (__c), "q" (__n), "c" (__n / 4), "D" (__s)
: "cx", "di", "memory");
: "=&c" (__d0), "=&D" (__d1)
: "a" (__c), "q" (__n), "0" (__n / 4), "1" (__s)
: "memory");
return __s;
}
__STRING_INLINE void *
__memset_gg (void *__s, char __c, size_t __n)
{
unsigned long int __d0, __d1;
__asm__ __volatile__
("cld\n\t"
"rep; stosb"
: /* no output */
: "a" (__c),"D" (__s), "c" (__n)
: "cx", "di", "memory");
: "=&D" (__d0), "=&c" (__d1)
: "a" (__c), "0" (__s), "1" (__n)
: "memory");
return __s;
}
@ -256,6 +261,7 @@ __memset_gg (void *__s, char __c, size_t __n)
__STRING_INLINE void *
memchr (__const void *__s, int __c, size_t __n)
{
unsigned long int __d0;
register void *__res;
if (count == 0)
return NULL;
@ -266,9 +272,8 @@ memchr (__const void *__s, int __c, size_t __n)
"je 1f\n\t"
"movl $1,%0\n"
"1:"
: "=D" (__res)
: "a" (__c), "0" (__s), "c" (__n)
: "cx");
: "=D" (__res), "=&c" (__d0)
: "a" (__c), "0" (__s), "1" (__n));
return __res - 1;
}
@ -278,14 +283,15 @@ memchr (__const void *__s, int __c, size_t __n)
__STRING_INLINE size_t
strlen (__const char *__str)
{
unsigned long int __d0;
register size_t __res;
__asm__ __volatile__
("cld\n\t"
"repne; scasb\n\t"
"notl %0"
: "=c" (__res)
: "D" (__str), "a" (0), "0" (0xffffffff)
: "di", "cc");
: "=c" (__res), "=&D" (__d0)
: "1" (__str), "a" (0), "0" (0xffffffff)
: "cc");
return __res - 1;
}
@ -295,6 +301,7 @@ strlen (__const char *__str)
__STRING_INLINE char *
strcpy (char *__dest, __const char *__src)
{
unsigned long int __d0, __d1;
__asm__ __volatile__
("cld\n"
"1:\n\t"
@ -302,9 +309,9 @@ strcpy (char *__dest, __const char *__src)
"stosb\n\t"
"testb %%al,%%al\n\t"
"jne 1b"
: /* no output */
: "S" (__src), "D" (__dest)
: "si", "di", "ax", "memory", "cc");
: "=&S" (__d0), "=&D" (__d1)
: "0" (__src), "1" (__dest)
: "ax", "memory", "cc");
return __dest;
}
@ -314,6 +321,7 @@ strcpy (char *__dest, __const char *__src)
__STRING_INLINE char *
strncpy (char *__dest, __const char *__src, size_t __n)
{
unsigned long int __d0, __d1, __d2;
__asm__ __volatile__
("cld\n"
"1:\n\t"
@ -325,9 +333,9 @@ strncpy (char *__dest, __const char *__src, size_t __n)
"jne 1b\n\t"
"rep; stosb\n"
"2:"
: /* no output */
: "S" (__src), "D" (__dest), "c" (__n)
: "si", "di", "ax", "cx", "memory", "cc");
: "=&S" (__d0), "=&D" (__d1), "=&c" (__d2)
: "0" (__src), "1" (__dest), "2" (__n)
: "ax", "memory", "cc");
return __dest;
}
@ -337,6 +345,7 @@ strncpy (char *__dest, __const char *__src, size_t __n)
__STRING_INLINE char *
strcat (char *__dest, __const char *__src)
{
unsigned long int __d0, __d1, __d2, __d3;
__asm__ __volatile__
("cld\n\t"
"repne; scasb\n\t"
@ -346,9 +355,9 @@ strcat (char *__dest, __const char *__src)
"stosb\n\t"
"testb %%al,%%al\n\t"
"jne 1b"
: /* no output */
: "S" (__src), "D" (__dest), "a" (0), "c" (0xffffffff)
: "si", "di", "ax", "cx", "memory", "cc");
: "=&S" (__d0), "=&D" (__d1), "=&c" (__d2), "=&a" (__d3)
: "0" (__src), "1" (__dest), "2" (0xffffffff), "3" (0)
: "memory", "cc");
return __dest;
}
@ -358,11 +367,12 @@ strcat (char *__dest, __const char *__src)
__STRING_INLINE char *
strncat (char *__dest, __const char *__src, size_t __n)
{
unsigned long int __d0, __d1, __d2, __d3;
__asm__ __volatile__
("cld\n\t"
"repne; scasb\n\t"
"decl %1\n\t"
"movl %4,%3\n"
"movl %5,%3\n"
"1:\n\t"
"decl %3\n\t"
"js 2f\n\t"
@ -373,9 +383,9 @@ strncat (char *__dest, __const char *__src, size_t __n)
"2:\n\t"
"xorl %2,%2\n\t"
"stosb"
: /* no output */
: "S" (__src), "D" (__dest), "a" (0), "c" (0xffffffff), "g" (__n)
: "si", "di", "ax", "cx", "memory", "cc");
: "=&S" (__d0), "=&D" (__d1), "=&c" (__d2), "=&a" (__d3)
: "g" (__n), "0" (__src), "1" (__dest), "2" (0xffffffff), "3" (0)
: "memory", "cc");
return __dest;
}
@ -385,6 +395,7 @@ strncat (char *__dest, __const char *__src, size_t __n)
__STRING_INLINE int
strcmp (__const char *__s1, __const char *__s2)
{
unsigned long int __d0, __d1;
register int __res;
__asm__ __volatile__
("cld\n"
@ -400,9 +411,9 @@ strcmp (__const char *__s1, __const char *__s2)
"sbbl %%eax,%%eax\n\t"
"orb $1,%%eax\n"
"3:"
: "=a" (__res)
: "S" (__s1), "D" (__s2)
: "si", "di", "cc");
: "=a" (__res), "=&S" (__d0), "=&D" (__d1)
: "1" (__s1), "2" (__s2)
: "cc");
return __res;
}
@ -412,6 +423,7 @@ strcmp (__const char *__s1, __const char *__s2)
__STRING_INLINE int
strncmp (__const char *__s1, __const char *__s2, size_t __n)
{
unsigned long int __d0, __d1, __d2;
register int __res;
__asm__ __volatile__
("cld\n"
@ -430,9 +442,9 @@ strncmp (__const char *__s1, __const char *__s2, size_t __n)
"sbbl %%eax,%%eax\n\t"
"orb $1,%%al\n"
"4:"
: "=a" (__res)
: "S" (__s1), "D" (__s2), "c" (__n)
: "si", "di", "cx", "cc");
: "=a" (__res), "=&S" (__d0), "=&D" (__d1), "=&c" (__d2)
: "1" (__s1), "2" (__s2), "3" (__n)
: "cc");
return __res;
}
@ -447,6 +459,7 @@ strncmp (__const char *__s1, __const char *__s2, size_t __n)
__STRING_INLINE char *
__strchr_g (__const char *__s, int __c)
{
unsigned long int __d0;
register char *__res;
__asm__ __volatile__
("cld\n\t"
@ -460,15 +473,16 @@ __strchr_g (__const char *__s, int __c)
"movl $1,%1\n"
"2:\n\t"
"movl %1,%0"
: "=a" (__res)
: "S" (__s), "0" (__c)
: "si", "cc");
: "=a" (__res), "=&S" (__d0)
: "0" (__c), "1" (__s)
: "cc");
return __res - 1;
}
__STRING_INLINE char *
__strchr_c (__const char *__s, int __c)
{
unsigned long int __d0;
register char *__res;
__asm__ __volatile__
("cld\n\t"
@ -481,9 +495,9 @@ __strchr_c (__const char *__s, int __c)
"movl $1,%1\n"
"2:\n\t"
"movl %1,%0"
: "=a" (__res)
: "S" (__s), "0" (__c)
: "si", "cc");
: "=a" (__res), "=&S" (__d0)
: "0" (__c), "1" (__s)
: "cc");
return __res - 1;
}
@ -495,6 +509,7 @@ __strchr_c (__const char *__s, int __c)
__STRING_INLINE size_t
strcspn (__const char *__s, __const char *__reject)
{
unsigned long int __d0, __d1, __d2;
register char *__res;
__asm__ __volatile__
("pushl %%ebx\n\t"
@ -514,19 +529,20 @@ strcspn (__const char *__s, __const char *__reject)
"jne 1b\n"
"2:\n\t"
"popl %%ebx"
: "=S" (__res)
: "a" (0), "c" (0xffffffff), "0" (__s), "r" (__reject)
: "ax", "cx", "di", "cc");
: "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&D" (__d2)
: "r" (__reject), "1" (0), "2" (0xffffffff), "3" (__s),
: "cc");
return (__res - 1) - __s;
}
#else
__STRING_INLINE size_t
strcspn (__const char *__s, __const char *__reject)
{
unsigned long int __d0, __d1, __d2, __d3;
register char *__res;
__asm__ __volatile__
("cld\n\t"
"movl %4,%%edi\n\t"
"movl %5,%%edi\n\t"
"repne; scasb\n\t"
"notl %%ecx\n\t"
"decl %%ecx\n\t"
@ -535,14 +551,14 @@ strcspn (__const char *__s, __const char *__reject)
"lodsb\n\t"
"testb %%al,%%al\n\t"
"je 2f\n\t"
"movl %4,%%edi\n\t"
"movl %5,%%edi\n\t"
"movl %%edx,%%ecx\n\t"
"repne; scasb\n\t"
"jne 1b\n"
"2:"
: "=S" (__res)
: "a" (0), "c" (0xffffffff),"0" (__s), "g" (__reject)
: "ax", "cx", "dx", "di", "cc");
: "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&d" (__d2), "=&D" (__d3)
: "g" (__reject), "0" (__s), "1" (0), "2" (0xffffffff)
: "cc");
return (__res - 1) - __s;
}
#endif
@ -555,6 +571,7 @@ strcspn (__const char *__s, __const char *__reject)
__STRING_INLINE size_t
strspn (__const char *__s, __const char *__accept)
{
unsigned long int __d0, __d1, __d2;
register char *__res;
__asm__ __volatile__
("pushl %%ebx\n\t"
@ -574,19 +591,20 @@ strspn (__const char *__s, __const char *__accept)
"je 1b\n"
"2:\n\t"
"popl %%ebx"
: "=S" (__res)
: "a" (0), "c" (0xffffffff), "0" (__s), "r" (__accept)
: "ax", "cx", "di", "cc");
: "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&D" (__d2)
: "r" (__accept), "0" (__s), "1" (0), "2" (0xffffffff)
: "cc");
return (__res - 1) - __s;
}
#else
__STRING_INLINE size_t
strspn (__const char *__s, __const char *__accept)
{
unsigned long int __d0, __d1, __d2, __d3;
register char *__res;
__asm__ __volatile__
("cld\n\t"
"movl %4,%%edi\n\t"
"movl %5,%%edi\n\t"
"repne; scasb\n\t"
"notl %%ecx\n\t"
"decl %%ecx\n\t"
@ -595,14 +613,14 @@ strspn (__const char *__s, __const char *__accept)
"lodsb\n\t"
"testb %%al,%%al\n\t"
"je 2f\n\t"
"movl %4,%%edi\n\t"
"movl %5,%%edi\n\t"
"movl %%edx,%%ecx\n\t"
"repne; scasb\n\t"
"je 1b\n"
"2:"
: "=S" (__res)
: "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept)
: "ax", "cx", "dx", "di", "cc");
: "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&d" (__d2), "=&D" (__d3)
: "g" (__accept), "0" (__s), "a" (0), "c" (0xffffffff)
: "cc");
return (__res - 1) - __s;
}
#endif
@ -614,6 +632,7 @@ strspn (__const char *__s, __const char *__accept)
__STRING_INLINE char *
strpbrk (__const char *__s, __const char *__accept)
{
unsigned long int __d0, __d1, __d2;
register char *__res;
__asm__ __volatile__
("pushl %%ebx\n\t"
@ -637,15 +656,16 @@ strpbrk (__const char *__s, __const char *__accept)
"xorl %0,%0\n"
"3:\n\t"
"popl %%ebx"
: "=S" (__res)
: "a" (0), "c" (0xffffffff), "0" (__s), "r" (__accept)
: "ax", "cx", "di", "cc");
: "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&D" (__d2)
: "r" (__accept), "0" (__s), "1" (0), "2" (0xffffffff)
: "cc");
return __res;
}
#else
__STRING_INLINE char *
strpbrk (__const char *__s, __const char *__accept)
{
unsigned long int __d0, __d1, __d2, __d3;
register char *__res;
__asm__ __volatile__
("cld\n\t"
@ -667,9 +687,9 @@ strpbrk (__const char *__s, __const char *__accept)
"2:\n\t"
"xorl %0,%0\n"
"3:"
: "=S" (__res)
: "a" (0), "c" (0xffffffff), "0" (__s), "g" (__accept)
: "ax", "cx", "dx", "di", "cc");
: "=&S" (__res), "=&a" (__d0), "=&c" (__d1), "=&d" (__d2), "=&D" (__d3)
: "g" (__accept), "0" (__s), "1" (0), "2" (0xffffffff)
: "cc");
return __res;
}
#endif
@ -681,6 +701,7 @@ strpbrk (__const char *__s, __const char *__accept)
__STRING_INLINE char *
strstr (__const char *__haystack, __const char *__needle)
{
unsigned long int __d0, __d1, __d2, __d3;
register char *__res;
__asm__ __volatile__
("pushl %%ebx\n\t"
@ -703,25 +724,26 @@ strstr (__const char *__haystack, __const char *__needle)
"xorl %%eax,%%eax\n\t"
"2:\n\t"
"popl %%ebx"
: "=a" (__res)
: "0" (0), "c" (0xffffffff), "S" (__haystack), "r" (__needle)
: "cx", "di", "si", "cc");
: "=&a" (__res), "=&c" (__d0), "=&S" (__d1), "=&D" (__d2)
: "r" (__needle), "0" (0), "1" (0xffffffff), "2" (__haystack)
: "cc");
return __res;
}
#else
__STRING_INLINE char *
strstr (__const char *__haystack, __const char *__needle)
{
unsigned long int __d0, __d1, __d2, __d3;
register char *__res;
__asm__ __volatile__
("cld\n\t" \
"movl %4,%%edi\n\t"
"movl %5,%%edi\n\t"
"repne; scasb\n\t"
"notl %%ecx\n\t"
"decl %%ecx\n\t" /* NOTE! This also sets Z if searchstring='' */
"movl %%ecx,%%edx\n"
"1:\n\t"
"movl %4,%%edi\n\t"
"movl %5,%%edi\n\t"
"movl %%esi,%%eax\n\t"
"movl %%edx,%%ecx\n\t"
"repe; cmpsb\n\t"
@ -732,9 +754,9 @@ strstr (__const char *__haystack, __const char *__needle)
"jne 1b\n\t"
"xorl %%eax,%%eax\n\t"
"2:"
: "=a" (__res)
: "0" (0), "c" (0xffffffff), "S" (__haystack), "g" (__needle)
: "cx", "dx", "di", "si", "cc");
: "=&a" (__res), "=&c" (__d0), "=&S" (__d1), "=&d" (__d2), "=&D" (__d3)
: "g" (__needle), "0" (0), "1" (0xffffffff), "2" (__haystack)
: "cc");
return __res;
}
#endif

3
sysdeps/unix/sysv/linux/adjtime.c
View File

@ -41,6 +41,7 @@
#endif
#ifndef ADJTIMEX
#define NO_LOCAL_ADJTIME
#define ADJTIMEX(x) __adjtimex (x)
#endif
@ -91,6 +92,6 @@ ADJTIME (itv, otv)
return 0;
}
#ifndef ADJTIME
#ifdef NO_LOCAL_ADJTIME
weak_alias (__adjtime, adjtime)
#endif