main/libc0.9.32: add posix_spawn support

everyself respecting libc needs it nowaday. especially vlc needs it.

2 files changed, 859 insertions, 1 deletions

diff --git a/main/libc0.9.32/0001-librt-add-posix_spawn-support.patch b/main/libc0.9.32/0001-librt-add-posix_spawn-support.patch
new file mode 100644
index 000000000..29725529c
--- /dev/null
+++ b/main/libc0.9.32/0001-librt-add-posix_spawn-support.patch
@@ -0,0 +1,853 @@
+From 0dcf66744f533e160232072bd03273ca1c448879 Mon Sep 17 00:00:00 2001
+From: Ismael Luceno <ismael.luceno@gmail.com>
+Date: Mon, 5 Mar 2012 06:43:49 -0200
+Subject: [PATCH] librt: add posix_spawn support
+
+Signed-off-by: Ismael Luceno <ismael.luceno@gmail.com>
+Signed-off-by: Mike Frysinger <vapier@gentoo.org>
+---
+ Makefile.in                    |   1 +
+ include/spawn.h                | 266 +++++++++++++++++++++++++++++++++++++++++
+ librt/Makefile.in              |   8 ++
+ librt/spawn.c                  | 259 +++++++++++++++++++++++++++++++++++++++
+ librt/spawn_faction_addclose.c |  51 ++++++++
+ librt/spawn_faction_adddup2.c  |  52 ++++++++
+ librt/spawn_faction_addopen.c  |  55 +++++++++
+ librt/spawn_faction_init.c     |  42 +++++++
+ librt/spawn_int.h              |  26 ++++
+ 9 files changed, 760 insertions(+)
+ create mode 100644 include/spawn.h
+ create mode 100644 librt/spawn.c
+ create mode 100644 librt/spawn_faction_addclose.c
+ create mode 100644 librt/spawn_faction_adddup2.c
+ create mode 100644 librt/spawn_faction_addopen.c
+ create mode 100644 librt/spawn_faction_init.c
+ create mode 100644 librt/spawn_int.h
+
+diff --git a/Makefile.in b/Makefile.in
+index d0ac6c0..82a2eff 100644
+--- a/Makefile.in
++++ b/Makefile.in
+@@ -290,6 +290,7 @@ HEADERS_RM-$(UCLIBC_SUPPORT_AI_ADDRCONFIG)   += ifaddrs.h
+ HEADERS_RM-$(UCLIBC_SV4_DEPRECATED)          += ustat.h sys/ustat.h bits/ustat.h
+ HEADERS_RM-$(UCLIBC_SUSV3_LEGACY)            += sys/timeb.h regexp.h
+ HEADERS_RM-$(UCLIBC_SUSV4_LEGACY)            += utime.h ucontext.h
++HEADERS_RM-$(UCLIBC_HAS_ADVANCED_REALTIME)   += spawn.h
+ 
+ ifneq ($(findstring install,$(MAKECMDGOALS)),)
+ $(addprefix $(PREFIX)$(DEVEL_PREFIX),include $(MULTILIB_DIR)):
+diff --git a/include/spawn.h b/include/spawn.h
+new file mode 100644
+index 0000000..8b07bb8
+--- /dev/null
++++ b/include/spawn.h
+@@ -0,0 +1,266 @@
++/* Definitions for POSIX spawn interface.
++   Copyright (C) 2000,2003,2004,2009,2011,2012 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/>.  */
++
++#ifndef	_SPAWN_H
++#define	_SPAWN_H	1
++
++#include <errno.h>
++#include <string.h>
++#include <stdlib.h>
++
++#include <features.h>
++#include <sched.h>
++#define __need_sigset_t
++#include <signal.h>
++#include <sys/types.h>
++
++
++/* Data structure to contain attributes for thread creation.  */
++typedef struct {
++	short int __flags;
++	pid_t __pgrp;
++	sigset_t __sd;
++	sigset_t __ss;
++	struct sched_param __sp;
++	int __policy;
++	int __pad[16];
++} posix_spawnattr_t;
++
++
++/* Data structure to contain information about the actions to be
++   performed in the new process with respect to file descriptors.  */
++typedef struct {
++	int __allocated;
++	int __used;
++	struct __spawn_action *__actions;
++	int __pad[16];
++} posix_spawn_file_actions_t;
++
++
++/* Flags to be set in the `posix_spawnattr_t'.  */
++#define POSIX_SPAWN_RESETIDS		0x01
++#define POSIX_SPAWN_SETPGROUP		0x02
++#define POSIX_SPAWN_SETSIGDEF		0x04
++#define POSIX_SPAWN_SETSIGMASK		0x08
++#define POSIX_SPAWN_SETSCHEDPARAM	0x10
++#define POSIX_SPAWN_SETSCHEDULER	0x20
++#define POSIX_SPAWN_USEVFORK		0x40 /* GNU extension */
++
++
++#define __POSIX_SPAWN_MASK (POSIX_SPAWN_RESETIDS		\
++			    | POSIX_SPAWN_SETPGROUP		\
++			    | POSIX_SPAWN_SETSIGDEF		\
++			    | POSIX_SPAWN_SETSIGMASK		\
++			    | POSIX_SPAWN_SETSCHEDPARAM		\
++			    | POSIX_SPAWN_SETSCHEDULER		\
++			    | POSIX_SPAWN_USEVFORK)
++
++__BEGIN_DECLS
++
++/* Spawn a new process executing PATH with the attributes describes in *ATTRP.
++   Before running the process perform the actions described in FILE-ACTIONS.
++
++   This function is a possible cancellation point and therefore not
++   marked with __THROW. */
++int posix_spawn(pid_t * restrict pid, const char * restrict path,
++		const posix_spawn_file_actions_t * restrict file_actions,
++		const posix_spawnattr_t * restrict attrp,
++		char * const argv[restrict],
++		char * const envp[restrict]);
++
++/* Similar to `posix_spawn' but search for FILE in the PATH.
++
++   This function is a possible cancellation point and therefore not
++   marked with __THROW.  */
++int posix_spawnp(pid_t *pid, const char *file,
++		 const posix_spawn_file_actions_t *file_actions,
++		 const posix_spawnattr_t *attrp,
++		 char * const argv[], char * const envp[]);
++
++/* Initialize data structure with attributes for `spawn' to default values. */
++inline static int
++posix_spawnattr_init(posix_spawnattr_t *attr)
++{
++	memset(attr, 0, sizeof(*attr));
++	return 0;
++}
++
++/* Free resources associated with ATTR.  */
++inline static int
++posix_spawnattr_destroy(posix_spawnattr_t *attr)
++{
++	return 0;
++}
++
++/* Store signal mask for signals with default handling from ATTR in
++   SIGDEFAULT.  */
++inline static int
++posix_spawnattr_getsigdefault(const posix_spawnattr_t *attr,
++			      sigset_t *sigdefault)
++{
++	memcpy(sigdefault, &attr->__sd, sizeof(sigset_t));
++	return 0;
++}
++
++
++/* Set signal mask for signals with default handling in ATTR to SIGDEFAULT.  */
++inline static int
++posix_spawnattr_setsigdefault(posix_spawnattr_t *attr,
++			      const sigset_t *sigdefault)
++{
++	memcpy(&attr->__sd, sigdefault, sizeof(sigset_t));
++	return 0;
++}
++
++/* Store signal mask for the new process from ATTR in SIGMASK.  */
++inline static int
++posix_spawnattr_getsigmask(const posix_spawnattr_t *attr,
++			   sigset_t *sigmask)
++{
++	memcpy(sigmask, &attr->__ss, sizeof(sigset_t));
++	return 0;
++}
++
++
++/* Set signal mask for the new process in ATTR to SIGMASK.  */
++inline static int
++posix_spawnattr_setsigmask(posix_spawnattr_t *attr,
++			   const sigset_t *sigmask)
++{
++	memcpy(&attr->__ss, sigmask, sizeof(sigset_t));
++	return 0;
++}
++
++/* Get flag word from the attribute structure.  */
++inline static int
++posix_spawnattr_getflags(const posix_spawnattr_t *attr, short int *flags)
++{
++	*flags = attr->__flags;
++	return 0;
++}
++
++/* Store flags in the attribute structure.  */
++inline static int
++posix_spawnattr_setflags(posix_spawnattr_t *attr, short int flags)
++{
++	/* Check no invalid bits are set.  */
++	if (flags & ~__POSIX_SPAWN_MASK)
++		return EINVAL;
++
++	attr->__flags = flags;
++	return 0;
++}
++
++/* Get process group ID from the attribute structure.  */
++inline static int
++posix_spawnattr_getpgroup(const posix_spawnattr_t *attr, pid_t *pgroup)
++{
++	*pgroup = attr->__pgrp;
++	return 0;
++}
++
++/* Store process group ID in the attribute structure.  */
++inline static int
++posix_spawnattr_setpgroup(posix_spawnattr_t *attr, pid_t pgroup)
++{
++	attr->__pgrp = pgroup;
++	return 0;
++}
++
++/* Get scheduling policy from the attribute structure.  */
++inline static int
++posix_spawnattr_getschedpolicy(const posix_spawnattr_t *attr,
++			       int *schedpolicy)
++{
++	*schedpolicy = attr->__policy;
++	return 0;
++}
++
++/* Store scheduling policy in the attribute structure.  */
++inline static int
++posix_spawnattr_setschedpolicy(posix_spawnattr_t *attr, int schedpolicy)
++{
++	switch (schedpolicy) {
++	case SCHED_OTHER:
++	case SCHED_FIFO:
++	case SCHED_RR:
++		break;
++	default:
++		return EINVAL;
++	}
++
++	attr->__policy = schedpolicy;
++	return 0;
++}
++
++/* Get scheduling parameters from the attribute structure.  */
++static inline int
++posix_spawnattr_getschedparam(const posix_spawnattr_t *attr,
++			      struct sched_param *schedparam)
++{
++	memcpy(schedparam, &attr->__sp, sizeof(attr->__sp));
++	return 0;
++}
++
++/* Store scheduling parameters in the attribute structure.  */
++static inline int
++posix_spawnattr_setschedparam(posix_spawnattr_t *attr,
++			      const struct sched_param *schedparam)
++{
++	attr->__sp = *schedparam;
++	return 0;
++}
++
++/* Initialize data structure for file attribute for `spawn' call.  */
++inline static int
++posix_spawn_file_actions_init(posix_spawn_file_actions_t *file_actions)
++{
++	memset(file_actions, 0, sizeof(*file_actions));
++	return 0;
++}
++
++/* Free resources associated with FILE-ACTIONS.  */
++inline static int
++posix_spawn_file_actions_destroy(posix_spawn_file_actions_t *file_actions)
++{
++	free(file_actions->__actions);
++	return 0;
++}
++
++/* Add an action to FILE-ACTIONS which tells the implementation to call
++   `open' for the given file during the `spawn' call.  */
++int posix_spawn_file_actions_addopen(posix_spawn_file_actions_t * restrict
++				     file_actions, int fd,
++				     const char * restrict path,
++				     int oflag, mode_t mode)
++     __THROW;
++
++/* Add an action to FILE-ACTIONS which tells the implementation to call
++   `close' for the given file descriptor during the `spawn' call.  */
++int posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *file_actions,
++				      int fd)
++     __THROW;
++
++/* Add an action to FILE-ACTIONS which tells the implementation to call
++   `dup2' for the given file descriptors during the `spawn' call.  */
++int posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *file_actions,
++				     int fd, int newfd) __THROW;
++
++__END_DECLS
++
++#endif /* spawn.h */
+diff --git a/librt/Makefile.in b/librt/Makefile.in
+index 909afd8..857efb5 100644
+--- a/librt/Makefile.in
++++ b/librt/Makefile.in
+@@ -33,6 +33,14 @@ else
+ librt_filter_SRC += clock_nanosleep.c clock_getcpuclockid.c clock_gettime.c
+ librt_SSRC :=
+ endif
++
++librt_filter_SRC += $(if $(UCLIBC_HAS_ADVANCED_REALTIME),, \
++	spawn.c \
++	spawn_faction_addclose.c \
++	spawn_faction_adddup2.c \
++	spawn_faction_addopen.c \
++	spawn_faction_init.c)
++
+ librt_SRC := $(filter-out $(librt_filter_SRC),$(librt_SRC))
+ 
+ librt_OBJ := $(patsubst %.c,$(librt_OUT)/%.o,$(librt_SRC))
+diff --git a/librt/spawn.c b/librt/spawn.c
+new file mode 100644
+index 0000000..b5935a1
+--- /dev/null
++++ b/librt/spawn.c
+@@ -0,0 +1,259 @@
++/* Copyright (C) 2000, 2011 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 <errno.h>
++#include <alloca.h>
++#include <unistd.h>
++#include <signal.h>
++#include <stdbool.h>
++#include <fcntl.h>
++
++#include <sys/resource.h>
++#include <not-cancel.h>
++
++#include <spawn.h>
++#include "spawn_int.h"
++
++/* The Unix standard contains a long explanation of the way to signal
++   an error after the fork() was successful.  Since no new wait status
++   was wanted there is no way to signal an error using one of the
++   available methods.  The committee chose to signal an error by a
++   normal program exit with the exit code 127.  */
++#define SPAWN_ERROR	127
++
++/* Execute file actions.
++ * Returns true on error.
++ */
++inline static bool execute_file_actions(const posix_spawn_file_actions_t *fa)
++{
++	struct rlimit64 fdlimit;
++	bool have_fdlimit = false;
++
++	for (int cnt = 0; cnt < fa->__used; ++cnt) {
++		struct __spawn_action *action = &fa->__actions[cnt];
++
++		switch (action->tag) {
++		case spawn_do_close:
++			if (close_not_cancel(action->action.close_action.fd) != 0) {
++				if (!have_fdlimit) {
++					getrlimit64(RLIMIT_NOFILE, &fdlimit);
++					have_fdlimit = true;
++				}
++
++				/* Only signal errors for file descriptors out of range.  */
++				if (0 > action->action.close_action.fd
++				    || action->action.close_action.fd >= fdlimit.rlim_cur)
++					/* Signal the error.  */
++					return true;
++			}
++			break;
++
++		case spawn_do_open:;
++			int new_fd = open_not_cancel(action->action.open_action.path,
++						     action->action.open_action.oflag
++						     | O_LARGEFILE,
++						     action->action.open_action.mode);
++
++			if (new_fd == -1)
++				return true;
++
++			/* Make sure the desired file descriptor is used.  */
++			if (new_fd != action->action.open_action.fd) {
++				if (dup2(new_fd, action->action.open_action.fd)
++				    != action->action.open_action.fd)
++					return true;
++
++				if (close_not_cancel(new_fd) != 0)
++					return true;
++			}
++			break;
++
++		case spawn_do_dup2:
++			if (dup2(action->action.dup2_action.fd,
++				   action->action.dup2_action.newfd)
++			    != action->action.dup2_action.newfd)
++				return true;
++			break;
++		}
++	}
++
++	return false;
++}
++
++#define DANGEROUS (POSIX_SPAWN_SETSIGMASK		\
++		   | POSIX_SPAWN_SETSIGDEF		\
++		   | POSIX_SPAWN_SETSCHEDPARAM		\
++		   | POSIX_SPAWN_SETSCHEDULER		\
++		   | POSIX_SPAWN_SETPGROUP		\
++		   | POSIX_SPAWN_RESETIDS)
++inline static bool is_vfork_safe(short int flags)
++{
++	return ((flags & POSIX_SPAWN_USEVFORK) || !(flags & DANGEROUS));
++}
++
++
++/* Spawn a new process executing PATH with the attributes describes in *ATTRP.
++   Before running the process perform the actions described in FILE-ACTIONS. */
++static int
++__spawni(pid_t *pid, const char *file,
++	 const posix_spawn_file_actions_t *fa,
++	 const posix_spawnattr_t *attrp, char *const argv[],
++	 char *const envp[], const char *path)
++{
++	short int flags = attrp ? attrp->__flags : 0;
++
++	pid_t new_pid;
++	if (is_vfork_safe(flags) && !fa)
++		new_pid = vfork();
++	else
++		new_pid = fork();
++
++	if (new_pid) {
++		if (new_pid < 0)
++			return errno;
++
++		if (pid)
++			*pid = new_pid;
++
++		return 0;
++	}
++
++	if (flags & POSIX_SPAWN_SETSIGMASK) {
++		if (sigprocmask(SIG_SETMASK, &attrp->__ss, NULL) != 0)
++			goto error;
++	}
++
++	if (flags & POSIX_SPAWN_SETSIGDEF) {
++		/* We have to iterate over all signals.  This could possibly be
++		   done better but it requires system specific solutions since
++		   the sigset_t data type can be very different on different
++		   architectures.  */
++		struct sigaction sa;
++
++		memset(&sa, 0, sizeof(sa));
++		sa.sa_handler = SIG_DFL;
++
++		for (int sig = 1; sig <= _NSIG; ++sig) {
++			if (sigismember(&attrp->__sd, sig)) {
++				if (sigaction(sig, &sa, NULL) != 0)
++					goto error;
++			}
++		}
++	}
++
++	if (flags & POSIX_SPAWN_SETSCHEDULER) {
++		if (sched_setscheduler(0, attrp->__policy, &attrp->__sp) == -1)
++			goto error;
++	} else if (flags & POSIX_SPAWN_SETSCHEDPARAM) {
++		if (sched_setparam(0, &attrp->__sp) == -1)
++			goto error;
++	}
++
++	if (flags & POSIX_SPAWN_SETPGROUP) {
++		if (setpgid(0, attrp->__pgrp) != 0)
++			goto error;
++	}
++
++	if (flags & POSIX_SPAWN_RESETIDS) {
++		if (seteuid(getuid()) || setegid(getgid()))
++			goto error;
++	}
++
++	if (fa && execute_file_actions(fa))
++		goto error;
++
++	if (!path || strchr(file, '/')) {
++		execve(file, argv, envp);
++		goto error;
++	}
++
++
++	char *name;
++	{
++		size_t filelen = strlen(file) + 1;
++		size_t pathlen = strlen(path) + 1;
++		name = alloca(pathlen + filelen);
++
++		/* Copy the file name at the top. */
++		name = (char *) memcpy(name + pathlen, file, filelen);
++
++		/* And add the slash.  */
++		*--name = '/';
++	}
++
++	char *p;
++	do {
++		char *startp;
++		p = strchrnul(path, ':');
++
++		/* Two adjacent colons, or a colon at the beginning or the end
++		   of `PATH' means to search the current directory.  */
++		if (p == path)
++			startp = name + 1;
++		else
++			startp = (char *) memcpy(name - (p - path), path, p - path);
++
++		execve(startp, argv, envp);
++
++		switch (errno) {
++		case EACCES:
++		case ENOENT:
++		case ESTALE:
++		case ENOTDIR:
++			/* Those errors indicate the file is missing or not
++			   executable by us, in which case we want to just try
++			   the next path directory. */
++			break;
++		default:
++			/* Some other error means we found an executable file,
++			   but something went wrong executing it; return the
++			   error to our caller. */
++			goto error;
++		}
++
++		path = p;
++	} while (*p++ != '\0');
++
++error:
++	_exit(SPAWN_ERROR);
++}
++
++/* Spawn a new process executing PATH with the attributes describes in *ATTRP.
++   Before running the process perform the actions described in FILE-ACTIONS. */
++int posix_spawn (pid_t *pid, const char *path,
++	       const posix_spawn_file_actions_t *fa,
++	       const posix_spawnattr_t *attrp, char *const argv[],
++	       char *const envp[])
++{
++	return __spawni(pid, path, fa, attrp, argv, envp, NULL);
++}
++
++/* Spawn a new process executing FILE with the attributes describes in *ATTRP.
++   Before running the process perform the actions described in FILE-ACTIONS. */
++int
++posix_spawnp(pid_t *pid, const char *file,
++	     const posix_spawn_file_actions_t *fa,
++	     const posix_spawnattr_t *attrp, char *const argv[],
++	     char *const envp[])
++{
++	const char *path = getenv("PATH");
++
++	if (!path)
++		path = ":/bin:/usr/bin";
++
++	return __spawni(pid, file, fa, attrp, argv, envp, path);
++}
+diff --git a/librt/spawn_faction_addclose.c b/librt/spawn_faction_addclose.c
+new file mode 100644
+index 0000000..b418f96
+--- /dev/null
++++ b/librt/spawn_faction_addclose.c
+@@ -0,0 +1,51 @@
++/* Copyright (C) 2000 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 <errno.h>
++#include <spawn.h>
++#include <unistd.h>
++
++#include "spawn_int.h"
++
++/* Add an action to FILE-ACTIONS which tells the implementation to call
++   `close' for the given file descriptor during the `spawn' call.  */
++int
++posix_spawn_file_actions_addclose(posix_spawn_file_actions_t *file_actions,
++				  int fd)
++{
++	int maxfd = sysconf(_SC_OPEN_MAX);
++	struct __spawn_action *rec;
++
++	/* Test for the validity of the file descriptor.  */
++	if (fd < 0 || fd >= maxfd)
++		return EBADF;
++
++	/* Allocate more memory if needed.  */
++	if (file_actions->__used == file_actions->__allocated
++	    && __posix_spawn_file_actions_realloc(file_actions) != 0)
++		/* This can only mean we ran out of memory.  */
++		return ENOMEM;
++
++	/* Add the new value.  */
++	rec = &file_actions->__actions[file_actions->__used];
++	rec->tag = spawn_do_close;
++	rec->action.open_action.fd = fd;
++
++	/* Account for the new entry.  */
++	++file_actions->__used;
++	return 0;
++}
+diff --git a/librt/spawn_faction_adddup2.c b/librt/spawn_faction_adddup2.c
+new file mode 100644
+index 0000000..6d73313
+--- /dev/null
++++ b/librt/spawn_faction_adddup2.c
+@@ -0,0 +1,52 @@
++/* Copyright (C) 2000 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 <errno.h>
++#include <spawn.h>
++#include <unistd.h>
++
++#include "spawn_int.h"
++
++/* Add an action to FILE-ACTIONS which tells the implementation to call
++   `dup2' for the given file descriptors during the `spawn' call.  */
++int
++posix_spawn_file_actions_adddup2(posix_spawn_file_actions_t *file_actions,
++				 int fd, int newfd)
++{
++	int maxfd = sysconf(_SC_OPEN_MAX);
++	struct __spawn_action *rec;
++
++	/* Test for the validity of the file descriptor.  */
++	if (fd < 0 || newfd < 0 || fd >= maxfd || newfd >= maxfd)
++		return EBADF;
++
++	/* Allocate more memory if needed.  */
++	if (file_actions->__used == file_actions->__allocated
++	    && __posix_spawn_file_actions_realloc (file_actions) != 0)
++		/* This can only mean we ran out of memory.  */
++		return ENOMEM;
++
++	/* Add the new value.  */
++	rec = &file_actions->__actions[file_actions->__used];
++	rec->tag = spawn_do_dup2;
++	rec->action.dup2_action.fd = fd;
++	rec->action.dup2_action.newfd = newfd;
++
++	/* Account for the new entry.  */
++	++file_actions->__used;
++	return 0;
++}
+diff --git a/librt/spawn_faction_addopen.c b/librt/spawn_faction_addopen.c
+new file mode 100644
+index 0000000..285ca71
+--- /dev/null
++++ b/librt/spawn_faction_addopen.c
+@@ -0,0 +1,55 @@
++/* Copyright (C) 2000 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 <errno.h>
++#include <spawn.h>
++#include <unistd.h>
++
++#include "spawn_int.h"
++
++/* Add an action to FILE-ACTIONS which tells the implementation to call
++   `open' for the given file during the `spawn' call.  */
++int
++posix_spawn_file_actions_addopen(posix_spawn_file_actions_t *file_actions,
++				 int fd, const char *path, int oflag,
++				 mode_t mode)
++{
++	int maxfd = sysconf(_SC_OPEN_MAX);
++	struct __spawn_action *rec;
++
++	/* Test for the validity of the file descriptor.  */
++	if (fd < 0 || fd >= maxfd)
++		return EBADF;
++
++	/* Allocate more memory if needed.  */
++	if (file_actions->__used == file_actions->__allocated
++	    && __posix_spawn_file_actions_realloc (file_actions) != 0)
++		/* This can only mean we ran out of memory.  */
++		return ENOMEM;
++
++	/* Add the new value.  */
++	rec = &file_actions->__actions[file_actions->__used];
++	rec->tag = spawn_do_open;
++	rec->action.open_action.fd = fd;
++	rec->action.open_action.path = path;
++	rec->action.open_action.oflag = oflag;
++	rec->action.open_action.mode = mode;
++
++	/* Account for the new entry.  */
++	++file_actions->__used;
++	return 0;
++}
+diff --git a/librt/spawn_faction_init.c b/librt/spawn_faction_init.c
+new file mode 100644
+index 0000000..fb398a5
+--- /dev/null
++++ b/librt/spawn_faction_init.c
+@@ -0,0 +1,42 @@
++/* Copyright (C) 2000 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 <errno.h>
++#include <spawn.h>
++#include <stdlib.h>
++#include <string.h>
++
++#include "spawn_int.h"
++
++
++/* Function used to increase the size of the allocated array.  This
++   function is called from the `add'-functions.  */
++int
++__posix_spawn_file_actions_realloc(posix_spawn_file_actions_t *file_actions)
++{
++	int newalloc = file_actions->__allocated + 8;
++	void *newmem = realloc(file_actions->__actions,
++			       newalloc * sizeof(struct __spawn_action));
++
++	if (newmem == NULL)
++		/* Not enough memory.  */
++		return ENOMEM;
++
++	file_actions->__actions = (struct __spawn_action *)newmem;
++	file_actions->__allocated = newalloc;
++	return 0;
++}
+diff --git a/librt/spawn_int.h b/librt/spawn_int.h
+new file mode 100644
+index 0000000..89c88db
+--- /dev/null
++++ b/librt/spawn_int.h
+@@ -0,0 +1,26 @@
++/* Data structure to contain the action information.  */
++struct __spawn_action {
++	enum {
++		spawn_do_close,
++		spawn_do_dup2,
++		spawn_do_open
++	} tag;
++
++	union {
++		struct {
++			int fd;
++		} close_action;
++		struct {
++			int fd;
++			int newfd;
++		} dup2_action;
++		struct {
++			int fd;
++			const char *path;
++			int oflag;
++			mode_t mode;
++		} open_action;
++	} action;
++};
++
++int __posix_spawn_file_actions_realloc(posix_spawn_file_actions_t *fa);
+-- 
+1.8.4
+
diff --git a/main/libc0.9.32/APKBUILD b/main/libc0.9.32/APKBUILD
index cc1511df1..e7dfadc29 100644
--- a/main/libc0.9.32/APKBUILD
+++ b/main/libc0.9.32/APKBUILD
@@ -4,7 +4,7 @@ pkgname=libc$_abiver
 _gitver=
 pkgver=0.9.33.2
 _ver=${pkgver/_/-}
-pkgrel=24
+pkgrel=25
 pkgdesc="C library for developing embedded Linux systems"
 url=http://uclibc.org
 license="LGPL-2"
@@ -61,6 +61,8 @@ librt-re-add-SIGCANCEL-to-the-list-of-blocked-signal-in-helper-thread.patch
 	0001-ldd-subdepends-check-stderr.patch
 	0001-stdio-inline-getchar-putchar.patch
 
+	0001-librt-add-posix_spawn-support.patch
+
 	uClibc-0.9.33.2-bits-time.h-sync-with-glibc-2.16.patch
 	uClibc-0.9.33.2-define-MSG_CMSG_CLOEXEC.patch
 	uClibc-0.9.33.2-dup3.patch
@@ -208,6 +210,7 @@ ffe7564afe846026a278dd8c0251ace9  uclibc-rtld_next-fix.patch
 747efb42244760ad3ae72a42b18ec8c3  libdl.patch
 e5352b7ebaa21e2ed787ce124ef67c9f  0001-ldd-subdepends-check-stderr.patch
 851808f9ec347dce3407d0ad4cb5ee49  0001-stdio-inline-getchar-putchar.patch
+7937aeaa99d5795f4cb64579c0ee536e  0001-librt-add-posix_spawn-support.patch
 7b6d467ce0cc5cf232f8526a3be5a491  uClibc-0.9.33.2-bits-time.h-sync-with-glibc-2.16.patch
 cbbd96f04cf17a403c1f74767e144fa2  uClibc-0.9.33.2-define-MSG_CMSG_CLOEXEC.patch
 7671d02a05a074bbcbcd6193492772d6  uClibc-0.9.33.2-dup3.patch
@@ -251,6 +254,7 @@ b4cd24a506f4f286144080b3e95a2999efb4ec58e759255e82e09a1d7c353549  0001-libm-x86_
 b284cf0f0f19897272ca0c8e10c7aa05a837807efcaad2b44e4f1a2c2fb1bbe4  libdl.patch
 2ec9f978c34e2ce573fc9dc91c70b170c0b7699fd393d0e93b9f1cd312af7532  0001-ldd-subdepends-check-stderr.patch
 703799e579e4c28eda028b49f8212c4d4447ffbcf83fadf48ee10db4eceaa0c4  0001-stdio-inline-getchar-putchar.patch
+88f324f318a91b4552b35e27ef570b02fdcbae960ecbb6206feaf39b662a3609  0001-librt-add-posix_spawn-support.patch
 1edc91ca3cc16b8786f4ea29fcf3a51db6e04bd3247e72fc3ff12496f52ad479  uClibc-0.9.33.2-bits-time.h-sync-with-glibc-2.16.patch
 a53bbdbe8af14cb6918836bea42ec0c85fca1a0e3de1ba3a3767d0bb97d08c92  uClibc-0.9.33.2-define-MSG_CMSG_CLOEXEC.patch
 cf0ce515c8d98e68cec01e805cb568371dd6f4aa21c14ea8bf841a0a0c26b358  uClibc-0.9.33.2-dup3.patch
@@ -294,6 +298,7 @@ f6de454c16a56c5978b9e840440baf4b17cd92c30191407fd371a88a5764ea3f119a5b639ca9aab5
 5e03d0a81145e572463642dd90aefe700979df7e5be9e2d3b029a7ff21f5b79064f97676c069cd287e6319b9c9a28ab5703bcc547f901e2d90cb09f85ca74ac6  libdl.patch
 8a3d1ecc97e297be1b998a1117d41ae852a9c3d5e3c8ec0a760d8c29a11107c13875ecda2a7e091efded4e8a454669c9c23a28a7bf564348671e8bf4473b74aa  0001-ldd-subdepends-check-stderr.patch
 984b9ec269ba679d8ad94f62187b0966347adf2b3daea64588f0884df81534687c8e7dad141ad48ff6332334eb3bd158bdd4d2ee22526255105b427cd334ff77  0001-stdio-inline-getchar-putchar.patch
+bbab9a917e3a5e7066e03caed4799388438327d008bd8987a45c4f7da72723b24de8d66a7d1ab9f18ef6dbb497ef1777db83ac3d3b7b7a0807c915d7059627cb  0001-librt-add-posix_spawn-support.patch
 be0bc446a030b1e59ccd8fa564b773cf12f6aac1ecb645ceeeb54958ebd8dd8619431bc395aeb640a7701cd48af123a50814180e848385f78a7545ae4349e704  uClibc-0.9.33.2-bits-time.h-sync-with-glibc-2.16.patch
 2982f918b8d73cff688fca4363eb9f165bc5383937e5d669e57c35dc2b9d4ec6efa6592ee7450f01382adaf7dbb92f6f7e623e9f885aa698c831cc7861131530  uClibc-0.9.33.2-define-MSG_CMSG_CLOEXEC.patch
 1e3241a2b8332a23793da9a1dacd3622f38499f1c1a9fe67f5afc5147007693826921d9f3c7521d4bb57d868a349f911db2bb35d2e988080527cce9fb2b187dd  uClibc-0.9.33.2-dup3.patch