From 554fd8c5195424bdbcabf5de30fdc183aba391bd Mon Sep 17 00:00:00 2001 From: upstream source tree Date: Sun, 15 Mar 2015 20:14:05 -0400 Subject: obtained gcc-4.6.4.tar.bz2 from upstream website; verified gcc-4.6.4.tar.bz2.sig; imported gcc-4.6.4 source tree from verified upstream tarball. downloading a git-generated archive based on the 'upstream' tag should provide you with a source tree that is binary identical to the one extracted from the above tarball. if you have obtained the source via the command 'git clone', however, do note that line-endings of files in your working directory might differ from line-endings of the respective files in the upstream repository. --- gcc/gthr-lynx.h | 61 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 61 insertions(+) create mode 100644 gcc/gthr-lynx.h (limited to 'gcc/gthr-lynx.h') diff --git a/gcc/gthr-lynx.h b/gcc/gthr-lynx.h new file mode 100644 index 000000000..13b81d2fe --- /dev/null +++ b/gcc/gthr-lynx.h @@ -0,0 +1,61 @@ +/* Threads compatibility routines for libgcc2 and libobjc for + LynxOS. */ +/* Compile this one with gcc. */ +/* Copyright (C) 2004, 2008, 2009 Free Software Foundation, Inc. + +This file is part of GCC. + +GCC is free software; you can redistribute it and/or modify it under +the terms of the GNU General Public License as published by the Free +Software Foundation; either version 3, or (at your option) any later +version. + +GCC is distributed in the hope that it will be useful, but WITHOUT ANY +WARRANTY; without even the implied warranty of MERCHANTABILITY or +FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License +for more details. + +Under Section 7 of GPL version 3, you are granted additional +permissions described in the GCC Runtime Library Exception, version +3.1, as published by the Free Software Foundation. + +You should have received a copy of the GNU General Public License and +a copy of the GCC Runtime Library Exception along with this program; +see the files COPYING3 and COPYING.RUNTIME respectively. If not, see +. */ + +#ifndef GCC_GTHR_LYNX_H +#define GCC_GTHR_LYNX_H + +#ifdef _MULTITHREADED + +/* Using the macro version of pthread_setspecific leads to a + compilation error. Instead we have two choices either kill all + macros in pthread.h with defining _POSIX_THREADS_CALLS or undefine + individual macros where we should fall back on the function + implementation. We choose the second approach. */ + +#include +#undef pthread_setspecific + +/* When using static libc on LynxOS, we cannot define pthread_create + weak. If the multi-threaded application includes iostream.h, + gthr-posix.h is included and pthread_create will be defined weak. + If pthread_create is weak its defining module in libc is not + necessarily included in the link and the symbol is resolved to zero. + Therefore the first call to it will crash. + + Since -mthreads is a multilib switch on LynxOS we know that at this + point we are compiling for multi-threaded. Omitting the weak + definitions at this point should have no effect. */ + +#undef GTHREAD_USE_WEAK +#define GTHREAD_USE_WEAK 0 + +#include "gthr-posix.h" + +#else +#include "gthr-single.h" +#endif + +#endif /* GCC_GTHR_LYNX_H */ -- cgit v1.2.3