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-rw-r--r--Makefile.in1
-rw-r--r--include/sys/signalfd.h86
-rw-r--r--libc/sysdeps/linux/common/Makefile.in4
-rw-r--r--libc/sysdeps/linux/common/signalfd.c38
4 files changed, 127 insertions, 2 deletions
diff --git a/Makefile.in b/Makefile.in
index e843a6133..e698c6466 100644
--- a/Makefile.in
+++ b/Makefile.in
@@ -314,6 +314,7 @@ ifneq ($(UCLIBC_LINUX_SPECIFIC),y)
$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/inotify.h
$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/perm.h
$(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/personality.h
+ $(RM) $(PREFIX)$(DEVEL_PREFIX)include/sys/signalfd.h
endif
ifneq ($(UCLIBC_SV4_DEPRECATED),y)
# Remove ustat.h since deprecated SV4 support was disabled upon request
diff --git a/include/sys/signalfd.h b/include/sys/signalfd.h
new file mode 100644
index 000000000..8cee17c5f
--- /dev/null
+++ b/include/sys/signalfd.h
@@ -0,0 +1,86 @@
+/* Copyright (C) 2007, 2008 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, write to the Free
+ Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
+ 02111-1307 USA. */
+
+#ifndef _SYS_SIGNALFD_H
+#define _SYS_SIGNALFD_H 1
+
+#define __need_sigset_t
+#include <signal.h>
+#include <stdint.h>
+
+
+struct signalfd_siginfo
+{
+ uint32_t ssi_signo;
+ int32_t ssi_errno;
+ int32_t ssi_code;
+ uint32_t ssi_pid;
+ uint32_t ssi_uid;
+ int32_t ssi_fd;
+ uint32_t ssi_tid;
+ uint32_t ssi_band;
+ uint32_t ssi_overrun;
+ uint32_t ssi_trapno;
+ int32_t ssi_status;
+ int32_t ssi_int;
+ uint64_t ssi_ptr;
+ uint64_t ssi_utime;
+ uint64_t ssi_stime;
+ uint64_t ssi_addr;
+ uint8_t __pad[48];
+};
+
+/* Flags for signalfd. */
+#if defined __sparc__ || defined __sparc64__
+enum
+ {
+ SFD_CLOEXEC = 0x400000,
+# define SFD_CLOEXEC SFD_CLOEXEC
+ SFD_NONBLOCK = 0x4000
+# define SFD_NONBLOCK SFD_NONBLOCK
+ };
+
+#elif defined __alpha__
+enum
+ {
+ SFD_CLOEXEC = 010000000,
+# define SFD_CLOEXEC SFD_CLOEXEC
+ SFD_NONBLOCK = 04
+# define SFD_NONBLOCK SFD_NONBLOCK
+ };
+
+#else
+enum
+ {
+ SFD_CLOEXEC = 02000000,
+# define SFD_CLOEXEC SFD_CLOEXEC
+ SFD_NONBLOCK = 04000
+# define SFD_NONBLOCK SFD_NONBLOCK
+ };
+#endif
+
+__BEGIN_DECLS
+
+/* Request notification for delivery of signals in MASK to be
+ performed using descriptor FD.*/
+extern int signalfd (int __fd, const sigset_t *__mask, int __flags)
+ __nonnull ((2)) __THROW;
+
+__END_DECLS
+
+#endif /* sys/signalfd.h */
diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in
index d9c3116e9..521e561fd 100644
--- a/libc/sysdeps/linux/common/Makefile.in
+++ b/libc/sysdeps/linux/common/Makefile.in
@@ -34,8 +34,8 @@ CSRC := $(filter-out inotify.c ioperm.c iopl.c madvise.c \
modify_ldt.c personality.c prctl.c readahead.c reboot.c \
remap_file_pages.c sched_getaffinity.c sched_setaffinity.c \
sendfile64.c sendfile.c setfsgid.c setfsuid.c setresuid.c \
- splice.c vmsplice.c tee.c swapoff.c swapon.c sync_file_range.c \
- sysctl.c sysinfo.c uselib.c vhangup.c,$(CSRC))
+ splice.c vmsplice.c tee.c signalfd.c swapoff.c swapon.c \
+ sync_file_range.c sysctl.c sysinfo.c uselib.c vhangup.c,$(CSRC))
endif
ifneq ($(UCLIBC_BSD_SPECIFIC),y)
diff --git a/libc/sysdeps/linux/common/signalfd.c b/libc/sysdeps/linux/common/signalfd.c
new file mode 100644
index 000000000..e134a6fa9
--- /dev/null
+++ b/libc/sysdeps/linux/common/signalfd.c
@@ -0,0 +1,38 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * signalfd() for uClibc
+ *
+ * Copyright (C) 2008 Bernhard Reutner-Fischer <uclibc@uclibc.org>
+ *
+ * Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
+ */
+
+#include <sys/syscall.h>
+#include <signal.h>
+#include <sys/signalfd.h>
+
+#if defined __NR_signalfd4
+#define __NR___syscall_signalfd4 __NR_signalfd4
+static __inline__ _syscall4(int, __syscall_signalfd4, int, fd,
+ const sigset_t *, mask, size_t, sizemask, int, flags);
+#elif defined __NR_signalfd
+#define __NR___syscall_signalfd __NR_signalfd4
+static __inline__ _syscall3(int, __syscall_signalfd, int, fd,
+ const sigset_t *, mask, size_t, sizemask);
+#endif
+
+int signalfd (int fd, const sigset_t *mask, int flags)
+{
+#if defined __NR___syscall_signalfd4
+ return __syscall_signalfd4(fd, mask, _NSIG / 8, flags);
+#elif defined __NR___syscall_signalfd
+ if (flags != 0) {
+ __set_errno(EINVAL);
+ return 1;
+ }
+ return __syscall_signalfd(fd, mask, _NSIG / 8);
+#elif defined __UCLIBC_HAS_STUBS__
+ __set_errno(ENOSYS);
+ return -1;
+#endif
+}