librt: fix broken posix_spawn

Fix iteration over signals, synced with GNU C library code and
pending patches. Issues found when running dhcpcd with hook
scripts. (exit status 127)

Reported-By: kapeka <kapeka@bering-uclibc.de>

3 files changed, 2 insertions, 88 deletions

diff --git a/libpthread/nptl/pthreadP.h b/libpthread/nptl/pthreadP.h
index 4707f6548..13205512a 100644
--- a/libpthread/nptl/pthreadP.h
+++ b/libpthread/nptl/pthreadP.h
@@ -1,5 +1,4 @@
 /* Copyright (C) 2002-2007, 2009 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -31,7 +30,7 @@
 #include <atomic.h>
 #include <bits/kernel-features.h>
 #include <errno.h>
-#include <nptl-signals.h>
+#include <internal-signals.h>
 
 
 /* Atomic operations on TLS memory.  */
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/nptl-signals.h b/libpthread/nptl/sysdeps/unix/sysv/linux/nptl-signals.h
deleted file mode 100644
index 43aa1a939..000000000
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/nptl-signals.h
+++ /dev/null
@@ -1,84 +0,0 @@
-/* Special use of signals in NPTL internals.  Linux version.
-   Copyright (C) 2014-2017 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
-
-   The GNU C Library is free software; you can redistribute it and/or
-   modify it under the terms of the GNU Lesser General Public
-   License as published by the Free Software Foundation; either
-   version 2.1 of the License, or (at your option) any later version.
-
-   The GNU C Library 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
-   Lesser General Public License for more details.
-
-   You should have received a copy of the GNU Lesser General Public
-   License along with the GNU C Library; if not, see
-   <http://www.gnu.org/licenses/>.  */
-
-#include <signal.h>
-
-/* The signal used for asynchronous cancelation.  */
-#define SIGCANCEL       __SIGRTMIN
-
-
-/* Signal needed for the kernel-supported POSIX timer implementation.
-   We can reuse the cancellation signal since we can distinguish
-   cancellation from timer expirations.  */
-#define SIGTIMER        SIGCANCEL
-
-
-/* Signal used to implement the setuid et.al. functions.  */
-#define SIGSETXID       (__SIGRTMIN + 1)
-
-
-/* Return is sig is used internally.  */
-static inline int
-__nptl_is_internal_signal (int sig)
-{
-  return (sig == SIGCANCEL) || (sig == SIGTIMER) || (sig == SIGSETXID);
-}
-
-/* Remove internal glibc signal from the mask.  */
-static inline void
-__nptl_clear_internal_signals (sigset_t *set)
-{
-  __sigdelset (set, SIGCANCEL);
-  __sigdelset (set, SIGTIMER);
-  __sigdelset (set, SIGSETXID);
-}
-
-#define SIGALL_SET \
-  ((__sigset_t) { .__val = {[0 ...  _SIGSET_NWORDS-1 ] =  -1 } })
-
-/* Block all signals, including internal glibc ones.  */
-static inline int
-__libc_signal_block_all (sigset_t *set)
-{
-  INTERNAL_SYSCALL_DECL (err);
-  return INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_BLOCK, &SIGALL_SET,
-			   set, _NSIG / 8);
-}
-
-/* Block all application signals (excluding internal glibc ones).  */
-static inline int
-__libc_signal_block_app (sigset_t *set)
-{
-  sigset_t allset = SIGALL_SET;
-  __nptl_clear_internal_signals (&allset);
-  INTERNAL_SYSCALL_DECL (err);
-  return INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_BLOCK, &allset, set,
-			   _NSIG / 8);
-}
-
-/* Restore current process signal mask.  */
-static inline int
-__libc_signal_restore_set (const sigset_t *set)
-{
-  INTERNAL_SYSCALL_DECL (err);
-  return INTERNAL_SYSCALL (rt_sigprocmask, err, 4, SIG_SETMASK, set, NULL,
-			   _NSIG / 8);
-}
-
-/* Used to communicate with signal handler.  */
-extern struct xid_command *__xidcmd attribute_hidden;
diff --git a/libpthread/nptl/sysdeps/unix/sysv/linux/raise.c b/libpthread/nptl/sysdeps/unix/sysv/linux/raise.c
index f74cd0be3..c0f6e277b 100644
--- a/libpthread/nptl/sysdeps/unix/sysv/linux/raise.c
+++ b/libpthread/nptl/sysdeps/unix/sysv/linux/raise.c
@@ -1,5 +1,4 @@
 /* Copyright (C) 2002-2016 Free Software Foundation, Inc.
-   This file is part of the GNU C Library.
    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
 
    The GNU C Library is free software; you can redistribute it and/or
@@ -20,7 +19,7 @@
 #include <limits.h>
 #include <signal.h>
 #include <sysdep.h>
-#include <nptl-signals.h>
+#include <internal-signals.h>
 
 int
 raise (int sig)