From 35a88fa501ff2e2fe133e7c0f38768ae703a43b7 Mon Sep 17 00:00:00 2001 From: Iain Sandoe Date: Sat, 28 Nov 2015 16:39:30 +0000 Subject: [PATCH] Fix PR63758 by using the _NSGetEnviron() API on Darwin include/ Roland McGrath PR other/63758 * environ.h: New file. libiberty/ Roland McGrath Iain Sandoe PR other/63758 * pex-unix.c: Obtain the environment interface from settings in environ.h rather than in-line code. Update copyright date. * setenv.c: Likewise. * xmalloc.c: Likewise. git-svn-id: svn+ssh://gcc.gnu.org/svn/gcc/trunk@228942 138bc75d-0d04-0410-961f-82ee72b054a4 --- include/ChangeLog | 5 +++++ include/environ.h | 33 +++++++++++++++++++++++++++++++++ libiberty/ChangeLog | 9 +++++++++ libiberty/pex-unix.c | 5 ++--- libiberty/setenv.c | 10 +++------- libiberty/xmalloc.c | 5 +++-- 6 files changed, 55 insertions(+), 12 deletions(-) create mode 100644 include/environ.h diff --git a/include/ChangeLog b/include/ChangeLog index 01a25def7a4..74f9cdc9476 100644 --- a/include/ChangeLog +++ b/include/ChangeLog @@ -13,6 +13,11 @@ * bfdlink.h (bfd_link_info): Add call_nop_as_suffix and call_nop_byte. +2015-10-18 Roland McGrath + + PR other/63758 + * environ.h: New file. + 2015-10-07 Claudiu Zissulescu * dis-asm.h (arc_get_disassembler): Correct declaration. diff --git a/include/environ.h b/include/environ.h new file mode 100644 index 00000000000..c18902ba5b4 --- /dev/null +++ b/include/environ.h @@ -0,0 +1,33 @@ +/* Declare the environ system variable. + Copyright (C) 2015 Free Software Foundation, Inc. + +This file is part of the libiberty library. +Libiberty is free software; you can redistribute it and/or +modify it under the terms of the GNU Library General Public +License as published by the Free Software Foundation; either +version 2 of the License, or (at your option) any later version. + +Libiberty 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 +Library General Public License for more details. + +You should have received a copy of the GNU Library General Public +License along with libiberty; see the file COPYING.LIB. If not, +write to the Free Software Foundation, Inc., 51 Franklin Street - Fifth Floor, +Boston, MA 02110-1301, USA. */ + +/* On OSX, the environ variable can be used directly in the code of an + executable, but cannot be used in the code of a shared library (such as + GCC's liblto_plugin, which links in libiberty code). Instead, the + function _NSGetEnviron can be called to get the address of environ. */ + +#ifndef HAVE_ENVIRON_DECL +# ifdef __APPLE__ +# include +# define environ (*_NSGetEnviron ()) +# else +extern char **environ; +# endif +# define HAVE_ENVIRON_DECL +#endif diff --git a/libiberty/ChangeLog b/libiberty/ChangeLog index 3cd03749da5..3025e99324b 100644 --- a/libiberty/ChangeLog +++ b/libiberty/ChangeLog @@ -32,6 +32,15 @@ Android hosts. * configure: Regenerate. +2015-10-18 Roland McGrath + Iain Sandoe + + PR other/63758 + * pex-unix.c: Obtain the environment interface from settings in + environ.h rather than in-line code. Update copyright date. + * setenv.c: Likewise. + * xmalloc.c: Likewise. + 2015-09-30 Jason Merrill * cp-demangle.c (d_cv_qualifiers): Dx means transaction_safe. diff --git a/libiberty/pex-unix.c b/libiberty/pex-unix.c index 07151157478..b48f315f83f 100644 --- a/libiberty/pex-unix.c +++ b/libiberty/pex-unix.c @@ -2,7 +2,7 @@ with other subprocesses), and wait for it. Generic Unix version (also used for UWIN and VMS). Copyright (C) 1996, 1997, 1998, 1999, 2000, 2001, 2003, 2004, 2005, 2009, - 2010 Free Software Foundation, Inc. + 2010, 2015 Free Software Foundation, Inc. This file is part of the libiberty library. Libiberty is free software; you can redistribute it and/or @@ -23,6 +23,7 @@ Boston, MA 02110-1301, USA. */ #include "config.h" #include "libiberty.h" #include "pex-common.h" +#include "environ.h" #include #include @@ -390,8 +391,6 @@ pex_child_error (struct pex_obj *obj, const char *executable, /* Execute a child. */ -extern char **environ; - #if defined(HAVE_SPAWNVE) && defined(HAVE_SPAWNVPE) /* Implementation of pex->exec_child using the Cygwin spawn operation. */ diff --git a/libiberty/setenv.c b/libiberty/setenv.c index 714ca0a4076..5b51193319d 100644 --- a/libiberty/setenv.c +++ b/libiberty/setenv.c @@ -1,5 +1,5 @@ -/* Copyright (C) 1992, 1995, 1996, 1997, 2002, 2011 Free Software Foundation, - Inc. +/* Copyright (C) 1992, 1995, 1996, 1997, 2002, 2011, 2015 + Free Software Foundation, Inc. This file based on setenv.c in the GNU C Library. The GNU C Library is free software; you can redistribute it and/or @@ -62,11 +62,7 @@ extern int errno; #endif #define __environ environ -#ifndef HAVE_ENVIRON_DECL -#ifndef environ -extern char **environ; -#endif -#endif +#include "environ.h" #undef setenv #undef unsetenv diff --git a/libiberty/xmalloc.c b/libiberty/xmalloc.c index 3e97aab563f..f849aee53e2 100644 --- a/libiberty/xmalloc.c +++ b/libiberty/xmalloc.c @@ -1,5 +1,6 @@ /* memory allocation routines with error checking. - Copyright 1989, 90, 91, 92, 93, 94 Free Software Foundation, Inc. + Copyright 1989, 1990, 1991, 1992, 1993, 1994, 2015 + Free Software Foundation, Inc. This file is part of the libiberty library. Libiberty is free software; you can redistribute it and/or @@ -65,6 +66,7 @@ function will be called to print an error message and terminate execution. #endif #include "ansidecl.h" #include "libiberty.h" +#include "environ.h" #include @@ -117,7 +119,6 @@ void xmalloc_failed (size_t size) { #ifdef HAVE_SBRK - extern char **environ; size_t allocated; if (first_break != NULL) -- 2.30.2