diff options
| -rw-r--r-- | extra/Configs/Config.in | 3 | ||||
| -rw-r--r-- | include/unistd.h | 7 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/Makefile.in | 3 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/bits/kernel-features.h | 13 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/pipe2.c | 16 | ||||
| -rw-r--r-- | libc/sysdeps/linux/common/stubs.c | 8 |
6 files changed, 48 insertions, 2 deletions
diff --git a/extra/Configs/Config.in b/extra/Configs/Config.in index 147a316e6..7dffdeab9 100644 --- a/extra/Configs/Config.in +++ b/extra/Configs/Config.in @@ -915,7 +915,8 @@ config UCLIBC_LINUX_SPECIFIC default y help capget(), capset(), fstatfs(), inotify_*(), ioperm(), iopl(), - madvise(), modify_ldt(), personality(), prctl()/arch_prctl(), + madvise(), modify_ldt(), pipe2(), personality(), + prctl()/arch_prctl(), ppoll(), readahead(), reboot(), remap_file_pages(), sched_getaffinity(), sched_setaffinity(), sendfile(), setfsgid(), setfsuid(), setresuid(), diff --git a/include/unistd.h b/include/unistd.h index c421cb308..6b614dd05 100644 --- a/include/unistd.h +++ b/include/unistd.h @@ -389,6 +389,13 @@ extern ssize_t pwrite64 (int __fd, __const void *__buf, size_t __n, extern int pipe (int __pipedes[2]) __THROW __wur; libc_hidden_proto(pipe) +#ifdef __USE_GNU +/* Same as pipe but apply flags passed in FLAGS to the new file + descriptors. */ +extern int pipe2 (int __pipedes[2], int __flags) __THROW __wur; +libc_hidden_proto(pipe2) +#endif + /* Schedule an alarm. In SECONDS seconds, the process will get a SIGALRM. If SECONDS is zero, any currently scheduled alarm will be cancelled. The function returns the number of seconds remaining until the last diff --git a/libc/sysdeps/linux/common/Makefile.in b/libc/sysdeps/linux/common/Makefile.in index 8811268d0..d97c73dcb 100644 --- a/libc/sysdeps/linux/common/Makefile.in +++ b/libc/sysdeps/linux/common/Makefile.in @@ -19,7 +19,8 @@ CSRC-$(UCLIBC_LINUX_MODULE_24) += create_module.c query_module.c \ get_kernel_syms.c # we need these internally: fstatfs.c statfs.c CSRC-$(UCLIBC_LINUX_SPECIFIC) += capget.c capset.c inotify.c ioperm.c iopl.c \ - madvise.c modify_ldt.c personality.c ppoll.c prctl.c readahead.c reboot.c \ + madvise.c modify_ldt.c pipe2.c personality.c ppoll.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 signalfd.c swapoff.c swapon.c \ diff --git a/libc/sysdeps/linux/common/bits/kernel-features.h b/libc/sysdeps/linux/common/bits/kernel-features.h index b338e0770..6bf554457 100644 --- a/libc/sysdeps/linux/common/bits/kernel-features.h +++ b/libc/sysdeps/linux/common/bits/kernel-features.h @@ -309,6 +309,19 @@ # define __ASSUME_O_CLOEXEC 1 #endif +/* Support for various CLOEXEC and NONBLOCK flags was added for x86, + * x86-64, PPC, IA-64, and SPARC in 2.6.27. */ +#if __LINUX_KERNEL_VERSION >= 0x02061b \ + && (defined __i386__ || defined __x86_64__ || defined __powerpc__ \ + || defined __ia64__ || defined __sparc__ || defined __s390__) +/* # define __ASSUME_SOCK_CLOEXEC 1 */ +/* # define __ASSUME_IN_NONBLOCK 1 */ +# define __ASSUME_PIPE2 1 +/* # define __ASSUME_EVENTFD2 1 */ +/* # define __ASSUME_SIGNALFD4 1 */ +#endif + + /* These features were surely available with 2.4.12. */ #if __LINUX_KERNEL_VERSION >= 132108 && defined __mc68000__ # define __ASSUME_MMAP2_SYSCALL 1 diff --git a/libc/sysdeps/linux/common/pipe2.c b/libc/sysdeps/linux/common/pipe2.c new file mode 100644 index 000000000..0a3686d81 --- /dev/null +++ b/libc/sysdeps/linux/common/pipe2.c @@ -0,0 +1,16 @@ +/* vi: set sw=4 ts=4: */ +/* + * pipe2() for uClibc + * + * Copyright (C) 2011 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 <unistd.h> + +#ifdef __NR_pipe2 +_syscall2(int, pipe2, int *, filedes, int, flags) +libc_hidden_def(pipe2) +#endif diff --git a/libc/sysdeps/linux/common/stubs.c b/libc/sysdeps/linux/common/stubs.c index 1aa07de36..f7c6dc5c5 100644 --- a/libc/sysdeps/linux/common/stubs.c +++ b/libc/sysdeps/linux/common/stubs.c @@ -31,6 +31,10 @@ static int enosys_stub(void) # undef __NR_sync_file_range #endif +#ifndef __UCLIBC_LINUX_SPECIFIC__ +# undef __NR_pipe2 +#endif + #ifndef __UCLIBC_HAS_SOCKET__ # undef __NR_accept # undef __NR_accept4 @@ -177,6 +181,10 @@ make_stub(lremovexattr) make_stub(lsetxattr) #endif +#ifndef __NR_pipe2 +make_stub(pipe2) +#endif + #ifndef __NR_pivot_root make_stub(pivot_root) #endif |