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binutils-os2's Introduction

		   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.

binutils-os2's People

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binutils-os2's Issues

libiberty: crash in cplus_demangle

I've found that the following call

cplus_demangle ("_ZSt7forwardIOZN7QThread6createIZN11tst_QThread6createEvE15MoveOnlyFunctorJEEEPS0_OT_DpOT0_EUlDpOT_E_ES6_RNSt16remove_referenceIS5_E4typeE", DMGL_ANSI | DMGL_PARAMS);

freaks libiberty out (a crash with a popuplog entry).

This problem was first encountered in EMXOMF.EXE, see bitwiseworks/libc#49.

Note that yo will get the very same crash if you run c++filt.exe (also part of binutils) and give it the same input prepended with an extra underscore. No surprise as it uses the same library.

gas: Warning: .stabd: description field xxxx too big

There is one very annoying message coming from as.exe when compiling complex C++ with GCC 9 (IIRC it happened with GCC 4 too), e.g.:

D:\Temp/ccyvaAtU.s:489773: Warning: .stabd: description field '1336a' too big, try a different debug format

This message is printed by this part of code:

as_warn (_(".stab%c: description field '%x' too big, try a different debug format"),

From what I see, it happens when there is too many line numbers in the source file and there is no workaround for AOUT debug info. I'm going to just disable it because it's highly annoying — there might be 1000s of messages like that from a single file (which scrolls the console and blows log files like crazy).

It's just another evidence that we should switch to ELF (and DWARF) ASAP (see bitwiseworks/gcc-os2#12).

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