gcc/libiberty
Nick Clifton e96d1d8c78 Add a recursion limit to libiberty's demangling code. The limit is enabled by default, but can be disabled via a new demangling option.
include	* demangle.h (DMGL_NO_RECURSE_LIMIT): Define.
        (DEMANGLE_RECURSION_LIMIT): Define

	PR 87681
	PR 87675
	PR 87636
	PR 87350
	PR 87335
libiberty * cp-demangle.h (struct d_info): Add recursion_level field.
	* cp-demangle.c (d_function_type): Add recursion counter.
	If the recursion limit is reached and the check is not disabled,
	then return with a failure result.
	(cplus_demangle_init_info): Initialise the recursion_level field.
        (d_demangle_callback): If the recursion limit is enabled, check
	for a mangled string that is so long that there is not enough
	stack space for the local arrays.
        * cplus-dem.c (struct work): Add recursion_level field.
	(squangle_mop_up): Set the numb and numk fields to zero.
	(work_stuff_copy_to_from): Handle the case where a btypevec or 
	ktypevec field is NULL.
	(demangle_nested_args): Add recursion counter.  If
	the recursion limit is not disabled and reached, return with a
	failure result.

From-SVN: r266886
2018-12-07 10:33:30 +00:00
..
config
testsuite Implement P0732R2, class types in non-type template parameters. 2018-11-05 02:47:02 -05:00
_doprnt.c Update copyright years. 2018-01-03 11:03:58 +01:00
.gitignore
aclocal.m4
alloca.c
argv.c argv.c (expandargv): Fix memory leak for expanded arguments. 2018-04-30 12:00:49 -06:00
asprintf.c Update copyright years. 2018-01-03 11:03:58 +01:00
at-file.texi
atexit.c
basename.c
bcmp.c
bcopy.c
bsearch.c
bzero.c
calloc.c
ChangeLog Add a recursion limit to libiberty's demangling code. The limit is enabled by default, but can be disabled via a new demangling option. 2018-12-07 10:33:30 +00:00
ChangeLog.jit
choose-temp.c Update copyright years. 2018-01-03 11:03:58 +01:00
clock.c Update copyright years. 2018-01-03 11:03:58 +01:00
concat.c Update copyright years. 2018-01-03 11:03:58 +01:00
config.h-vms
config.in Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
configure Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
configure.ac Update GCC to autoconf 2.69, automake 1.15.1 (PR bootstrap/82856). 2018-10-31 17:03:16 +00:00
configure.com
copying-lib.texi Update copyright years. 2018-01-03 11:03:58 +01:00
COPYING.LIB
copysign.c
cp-demangle.c Add a recursion limit to libiberty's demangling code. The limit is enabled by default, but can be disabled via a new demangling option. 2018-12-07 10:33:30 +00:00
cp-demangle.h Add a recursion limit to libiberty's demangling code. The limit is enabled by default, but can be disabled via a new demangling option. 2018-12-07 10:33:30 +00:00
cp-demint.c Update copyright years. 2018-01-03 11:03:58 +01:00
cplus-dem.c Add a recursion limit to libiberty's demangling code. The limit is enabled by default, but can be disabled via a new demangling option. 2018-12-07 10:33:30 +00:00
crc32.c Update copyright years. 2018-01-03 11:03:58 +01:00
d-demangle.c Update copyright years. 2018-01-03 11:03:58 +01:00
dwarfnames.c Update copyright years. 2018-01-03 11:03:58 +01:00
dyn-string.c Update copyright years. 2018-01-03 11:03:58 +01:00
fdmatch.c Update copyright years. 2018-01-03 11:03:58 +01:00
ffs.c
fibheap.c Update copyright years. 2018-01-03 11:03:58 +01:00
filename_cmp.c Update copyright years. 2018-01-03 11:03:58 +01:00
floatformat.c Update copyright years. 2018-01-03 11:03:58 +01:00
fnmatch.c Update copyright years. 2018-01-03 11:03:58 +01:00
fnmatch.txh
fopen_unlocked.c Update copyright years. 2018-01-03 11:03:58 +01:00
functions.texi
gather-docs Update copyright years. 2018-01-03 11:03:58 +01:00
getcwd.c
getopt1.c Update copyright years. 2018-01-03 11:03:58 +01:00
getopt.c Update copyright years. 2018-01-03 11:03:58 +01:00
getpagesize.c
getpwd.c
getruntime.c Update copyright years. 2018-01-03 11:03:58 +01:00
gettimeofday.c
hashtab.c Update copyright years. 2018-01-03 11:03:58 +01:00
hex.c Update copyright years. 2018-01-03 11:03:58 +01:00
index.c
insque.c
lbasename.c Update copyright years. 2018-01-03 11:03:58 +01:00
libiberty.texi Update copyright years. 2018-01-03 11:03:58 +01:00
lrealpath.c Update copyright years. 2018-01-03 11:03:58 +01:00
maint-tool Update copyright years. 2018-01-03 11:03:58 +01:00
make-relative-prefix.c Update copyright years. 2018-01-03 11:03:58 +01:00
make-temp-file.c Add linker_output as prefix for LTO temps (PR lto/86548). 2018-07-26 12:13:14 +00:00
Makefile.in Update copyright years. 2018-01-03 11:03:58 +01:00
makefile.vms
md5.c Improve boostrap-ubsan config (PR bootstrap/64914). 2018-05-10 10:15:42 +00:00
memchr.c
memcmp.c
memcpy.c
memmem.c Update copyright years. 2018-01-03 11:03:58 +01:00
memmove.c
mempcpy.c Update copyright years. 2018-01-03 11:03:58 +01:00
memset.c
mkstemps.c Update copyright years. 2018-01-03 11:03:58 +01:00
msdos.c
objalloc.c Update copyright years. 2018-01-03 11:03:58 +01:00
obstack.c Update copyright years. 2018-01-03 11:03:58 +01:00
obstacks.texi
partition.c Update copyright years. 2018-01-03 11:03:58 +01:00
pex-common.c Update copyright years. 2018-01-03 11:03:58 +01:00
pex-common.h Update copyright years. 2018-01-03 11:03:58 +01:00
pex-djgpp.c Update copyright years. 2018-01-03 11:03:58 +01:00
pex-msdos.c Update copyright years. 2018-01-03 11:03:58 +01:00
pex-one.c Update copyright years. 2018-01-03 11:03:58 +01:00
pex-unix.c [libiberty] Use pipe inside pex_run 2018-10-01 18:46:51 +00:00
pex-win32.c Update copyright years. 2018-01-03 11:03:58 +01:00
pexecute.c Update copyright years. 2018-01-03 11:03:58 +01:00
pexecute.txh
physmem.c Update copyright years. 2018-01-03 11:03:58 +01:00
putenv.c Update copyright years. 2018-01-03 11:03:58 +01:00
random.c
README
regex.c Update copyright years. 2018-01-03 11:03:58 +01:00
rename.c
rindex.c
rust-demangle.c Update copyright years. 2018-01-03 11:03:58 +01:00
safe-ctype.c Update copyright years. 2018-01-03 11:03:58 +01:00
setenv.c Update copyright years. 2018-01-03 11:03:58 +01:00
setproctitle.c Update copyright years. 2018-01-03 11:03:58 +01:00
sha1.c Update copyright years. 2018-01-03 11:03:58 +01:00
sigsetmask.c
simple-object-coff.c Update copyright years. 2018-01-03 11:03:58 +01:00
simple-object-common.h re PR lto/81968 (early lto debug objects make Solaris ld SEGV) 2018-01-11 12:12:39 +00:00
simple-object-elf.c simple-object-elf.c (ENOTSUP): If not defined by errno.h, redirect to ENOSYS. 2018-07-19 08:47:34 +00:00
simple-object-mach-o.c Update copyright years. 2018-01-03 11:03:58 +01:00
simple-object-xcoff.c simple-object-xcoff.c (simple_object_xcoff_find_sections): Use ulong_type to avoid warning about 32-bit shift. 2018-01-21 05:01:31 +00:00
simple-object.c simple-object.h (simple_object_copy_lto_debug_sections): Add rename parameter. 2018-05-30 15:26:26 +00:00
simple-object.txh
snprintf.c Update copyright years. 2018-01-03 11:03:58 +01:00
sort.c Update copyright years. 2018-01-03 11:03:58 +01:00
spaces.c Update copyright years. 2018-01-03 11:03:58 +01:00
splay-tree.c splay-tree.h (splay_tree_compare_strings, [...]): Declare new utility functions. 2018-05-28 18:21:23 +00:00
stack-limit.c Update copyright years. 2018-01-03 11:03:58 +01:00
stpcpy.c Update copyright years. 2018-01-03 11:03:58 +01:00
stpncpy.c Update copyright years. 2018-01-03 11:03:58 +01:00
strcasecmp.c
strchr.c
strdup.c
strerror.c
strncasecmp.c
strncmp.c
strndup.c Update copyright years. 2018-01-03 11:03:58 +01:00
strnlen.c
strrchr.c
strsignal.c
strstr.c
strtod.c Update copyright years. 2018-01-03 11:03:58 +01:00
strtol.c
strtoll.c
strtoul.c
strtoull.c
strverscmp.c Update copyright years. 2018-01-03 11:03:58 +01:00
timeval-utils.c Update copyright years. 2018-01-03 11:03:58 +01:00
tmpnam.c
unlink-if-ordinary.c Update copyright years. 2018-01-03 11:03:58 +01:00
vasprintf.c Update copyright years. 2018-01-03 11:03:58 +01:00
vfork.c
vfprintf.c Update copyright years. 2018-01-03 11:03:58 +01:00
vprintf-support.c Update copyright years. 2018-01-03 11:03:58 +01:00
vprintf-support.h Update copyright years. 2018-01-03 11:03:58 +01:00
vprintf.c
vsnprintf.c Update copyright years. 2018-01-03 11:03:58 +01:00
vsprintf.c Update copyright years. 2018-01-03 11:03:58 +01:00
waitpid.c
xasprintf.c Update copyright years. 2018-01-03 11:03:58 +01:00
xatexit.c
xexit.c Update copyright years. 2018-01-03 11:03:58 +01:00
xmalloc.c Update copyright years. 2018-01-03 11:03:58 +01:00
xmemdup.c
xstrdup.c
xstrerror.c
xstrndup.c Update copyright years. 2018-01-03 11:03:58 +01:00
xvasprintf.c Update copyright years. 2018-01-03 11:03:58 +01:00

This directory contains the -liberty library of free software.
It is a collection of subroutines used by various GNU programs.
Current members include:

	getopt -- get options from command line
	obstack -- stacks of arbitrarily-sized objects
	strerror -- error message strings corresponding to errno
	strtol -- string-to-long conversion
	strtoul -- string-to-unsigned-long conversion

We expect many of the GNU subroutines that are floating around to
eventually arrive here.

The library must be configured from the top source directory.  Don't
try to run configure in this directory.  Follow the configuration
instructions in ../README.

Please report bugs to "gcc-bugs@gcc.gnu.org" and send fixes to
"gcc-patches@gcc.gnu.org".  Thank you.

ADDING A NEW FILE
=================

There are two sets of files:  Those that are "required" will be
included in the library for all configurations, while those
that are "optional" will be included in the library only if "needed."

To add a new required file, edit Makefile.in to add the source file
name to CFILES and the object file to REQUIRED_OFILES.

To add a new optional file, it must provide a single function, and the
name of the function must be the same as the name of the file.

    * Add the source file name to CFILES in Makefile.in and the object
      file to CONFIGURED_OFILES.

    * Add the function to name to the funcs shell variable in
      configure.ac.

    * Add the function to the AC_CHECK_FUNCS lists just after the
      setting of the funcs shell variable.  These AC_CHECK_FUNCS calls
      are never executed; they are there to make autoheader work
      better.

    * Consider the special cases of building libiberty; as of this
      writing, the special cases are newlib and VxWorks.  If a
      particular special case provides the function, you do not need
      to do anything.  If it does not provide the function, add the
      object file to LIBOBJS, and add the function name to the case
      controlling whether to define HAVE_func.

Finally, in the build directory of libiberty, configure with
"--enable-maintainer-mode", run "make maint-deps" to update
Makefile.in, and run 'make stamp-functions' to regenerate
functions.texi.

The optional file you've added (e.g. getcwd.c) should compile and work
on all hosts where it is needed.  It does not have to work or even
compile on hosts where it is not needed.

ADDING A NEW CONFIGURATION
==========================

On most hosts you should be able to use the scheme for automatically
figuring out which files are needed.  In that case, you probably
don't need a special Makefile stub for that configuration.

If the fully automatic scheme doesn't work, you may be able to get
by with defining EXTRA_OFILES in your Makefile stub.  This is
a list of object file names that should be treated as required
for this configuration - they will be included in libiberty.a,
regardless of whatever might be in the C library.