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Pedro Alves 830301108d handle 'iconv's that define EILSEQ to ENOENT
We're currently pulling gnulib's errno module as a dependency of some
other module.  That provides an errno.h that defines EILSEQ to a
distinct value if the system's errno.h doesn't define it already.

However, GNU iconv does this:

 /* Get errno declaration and values. */
 #include <errno.h>
 /* Some systems, like SunOS 4, don't have EILSEQ. Some systems, like BSD/OS,
    have EILSEQ in a different header.  On these systems, define EILSEQ
    ourselves. */
 #ifndef EILSEQ
 #define EILSEQ @EILSEQ@
 #endif

That's in:

 http://git.savannah.gnu.org/cgit/libiconv.git/tree/include/iconv.h.in

The "different header" mentioned is wchar.h.  This is handled in:

 http://git.savannah.gnu.org/cgit/libiconv.git/tree/m4/eilseq.m4

which defines @EILSEQ@ to ENOENT if EILSEQ isn't found in either
errno.h or wchar.h.

So if iconv sets errno to EILSEQ on such system's, it's really setting
it to ENOENT.  And when we check for EILSEQ, we're checking for
gnulib's value.  The result is we won't detect the error correctly.

As we dropped support for both SunOS 4 or old BSD/OS, maybe we don't
need to care about the wchar.h issue anymore.  Still, AFAICS, gnulib's
m4/errno_h.m4 doesn't know that EILSEQ may be defined in wchar.h, and
so on such systems, ISTM gnulib ends up defining an incompatible
EILSEQ itself, but I think that should be fixed on the gnulib side, by
making it extract the EILSEQ value out of the system's wchar.h, like
GNU iconv does.

So that leaves handling the case of gnulib making up a EILSEQ value,
which we take as meaning the system really doesn't really define it,
which will be the same systems GNU iconv sets errno to ENOENT instead
of EILSEQ.

Looking at glibc's iconv it seems that ENOENT is never used there.
It seems it's safe to always treat ENOENT the same as EILSEQ.

The current EILSEQ definition under PHONY_ICONV is obviously stale as
gnulib garantees there's always a EILSEQ defined.

Tested on x86_64 Fedora 20.

gdb/
2014-11-14  Pedro Alves  <palves@redhat.com>

	* charset.c [PHONY_ICONV && !EILSEQ] (EILSEQ): Don't define.
	[!PHONY_ICONV] (gdb_iconv): New function.
	[!PHONY_ICONV] (iconv): Redefine to gdb_iconv.
2014-11-14 15:58:09 +00:00
bfd Fix a null pointer dereference when reading the debug link info from a corrupt file. 2014-11-14 13:39:29 +00:00
binutils More fixes for invalid memory accesses triggered by corrupt binaries. 2014-11-14 12:30:00 +00:00
config Fix --diable-shared --enable-plugins build breakage 2014-08-19 21:59:56 +09:30
cpu or1k: add missing l.msync, l.psync and l.psync instructions. 2014-07-20 20:26:09 +03:00
elfcpp Add tls support to gold aarch64 backend. 2014-09-17 14:24:10 -07:00
etc PR external/{16327,16328}: Remove etc/configure.texi and etc/standards.texi. 2014-06-27 11:33:25 +02:00
gas [AArch64] Enable CRC feature in GAS for cortex-a53 and cortex-a57. 2014-11-14 12:52:17 +00:00
gdb handle 'iconv's that define EILSEQ to ENOENT 2014-11-14 15:58:09 +00:00
gold Fix race condition when using --threads with linker plugins. 2014-11-07 16:12:58 -08:00
gprof Import updated translations supplied by the Translation Project. 2014-11-03 12:26:48 +00:00
include Mark R_X86_64_GOTPLT64 obsolete 2014-11-13 11:26:47 -08:00
intl
ld Add assembler support for @gotplt 2014-11-13 11:09:40 -08:00
libdecnumber PR c/59871 c/ * c-typeck.c (build_compound_expr): Warn even for right-hand operand of a comma expression. (emit_side_effect_warnings): Likewise. libdecnumber/ * decNumberLocal.h (UBFROMUS, UBFROMUI): Remove last argument. testsuite/ * gcc.dg/20020220-2.c: Adjust dg-warning message. * gcc.dg/pr59871.c: New test. 2014-05-08 10:18:28 -06:00
libiberty Fix gnu11 fallout on Solaris 10+ 2014-11-05 15:07:38 +01:00
opcodes Add mach parameter to nios2_find_opcode_hash. 2014-11-06 13:12:21 -08:00
readline readline/search.c: Remove useless parameter '0' for rl_message() 2014-09-22 09:52:06 -04:00
sim Shadow SIM's debug_printf function 2014-08-28 11:59:09 +01:00
texinfo
.cvsignore
.gitattributes Add a .gitattributes file for use with git-merge-changelog 2014-07-25 18:07:23 -04:00
.gitignore
ChangeLog src-release.sh: configure using --target. 2014-10-15 09:50:53 +02:00
compile
config-ml.in
config.guess * config.sub, config.guess: Import from upstream. 2014-05-01 21:49:01 +01:00
config.rpath
config.sub Import config.sub from upstream config repo 2014-07-29 07:04:52 -04:00
configure Add aarch64 to list of targets that support gold. 2014-10-03 14:48:14 -07:00
configure.ac Add aarch64 to list of targets that support gold. 2014-10-03 14:48:14 -07:00
COPYING
COPYING.LIB
COPYING.LIBGLOSS
COPYING.NEWLIB 2013-10-01 Jeff Johnston <jjohnstn@redhat.com> 2013-10-01 18:14:04 +00:00
COPYING3
COPYING3.LIB
depcomp
djunpack.bat
install-sh
libtool.m4 * libtool.m4 (_LT_ENABLE_LOCK <ld -m flags>): Remove non-canonical 2013-09-20 09:51:25 +00:00
ltgcc.m4
ltmain.sh PR target/59788 2014-02-06 11:01:57 +01:00
ltoptions.m4
ltsugar.m4
ltversion.m4
lt~obsolete.m4
MAINTAINERS Update description of ownership of files in include/ 2014-11-04 16:14:14 -08:00
Makefile.def PR sanitizer/56781 * Makefile.def: Set bootstrap=true; for host fixincludes. * configure.ac: Don't bootstrap host fixincludes unless --with-build-config=bootstrap-{a,ub}san. * Makefile.in: Regenerated. * configure: Regenerated. 2014-05-08 10:18:30 -06:00
Makefile.in PR sanitizer/56781 * Makefile.def: Set bootstrap=true; for host fixincludes. * configure.ac: Don't bootstrap host fixincludes unless --with-build-config=bootstrap-{a,ub}san. * Makefile.in: Regenerated. * configure: Regenerated. 2014-05-08 10:18:30 -06:00
Makefile.tpl PR bootstrap/58572 * Makefile.tpl (POSTSTAGE1_CXX_EXPORT): Use -isystem instead of -I for libstdc++-v3 includes if $(LEAN). * Makefile.in: Regenerated. 2014-05-08 10:18:29 -06:00
makefile.vms
missing
mkdep
mkinstalldirs
move-if-change
README
README-maintainer-mode
setup.com
src-release.sh src-release.sh: configure using --target. 2014-10-15 09:50:53 +02:00
symlink-tree
ylwrap

		   README for GNU development tools

This directory contains various GNU compilers, assemblers, linkers, 
debuggers, etc., plus their support routines, definitions, and documentation.

If you are receiving this as part of a GDB release, see the file gdb/README.
If with a binutils release, see binutils/README;  if with a libg++ release,
see libg++/README, etc.  That'll give you info about this
package -- supported targets, how to use it, how to report bugs, etc.

It is now possible to automatically configure and build a variety of
tools with one command.  To build all of the tools contained herein,
run the ``configure'' script here, e.g.:

	./configure 
	make

To install them (by default in /usr/local/bin, /usr/local/lib, etc),
then do:
	make install

(If the configure script can't determine your type of computer, give it
the name as an argument, for instance ``./configure sun4''.  You can
use the script ``config.sub'' to test whether a name is recognized; if
it is, config.sub translates it to a triplet specifying CPU, vendor,
and OS.)

If you have more than one compiler on your system, it is often best to
explicitly set CC in the environment before running configure, and to
also set CC when running make.  For example (assuming sh/bash/ksh):

	CC=gcc ./configure
	make

A similar example using csh:

	setenv CC gcc
	./configure
	make

Much of the code and documentation enclosed is copyright by
the Free Software Foundation, Inc.  See the file COPYING or
COPYING.LIB in the various directories, for a description of the
GNU General Public License terms under which you can copy the files.

REPORTING BUGS: Again, see gdb/README, binutils/README, etc., for info
on where and how to report problems.