On Tue, Apr 17, 2012 at 12:30 AM, Bernhard Reutner-Fischer
rep.dot@gmail.com wrote:
Signed-off-by: Bernhard Reutner-Fischer rep.dot@gmail.com
---
include/fcntl.h | 4 +-
libc/sysdeps/linux/common/Makefile.in | 3 +-
libc/sysdeps/linux/common/bits/kernel-features.h | 8 ++
libc/sysdeps/linux/common/posix_fallocate.c | 43
libc/sysdeps/linux/common/posix_fallocate64.c | 39 +++
libc/sysdeps/linux/common/stubs.c | 4 +
test/.gitignore | 1 +
test/unistd/Makefile.in | 3 +
test/unistd/tst-posix_fallocate.c | 121
++
9 files changed, 222 insertions(+), 4 deletions(-)
create mode 100644 libc/sysdeps/linux/common/posix_fallocate.c
create mode 100644 libc/sysdeps/linux/common/posix_fallocate64.c
create mode 100644 test/unistd/tst-posix_fallocate.c
Looks ok to me. Did you test it on a 32bit and a 64 bit arch ?
mips would be interesting.
diff --git a/include/fcntl.h b/include/fcntl.h
index 26ad1fe..c4a47af 100644
--- a/include/fcntl.h
+++ b/include/fcntl.h
@@ -210,9 +210,7 @@ extern int posix_fadvise64 (int __fd, __off64_t __offset,
__off64_t __len,
#endif
-#if 0 /* defined __UCLIBC_HAS_ADVANCED_REALTIME__ */
-
-/* FIXME -- uClibc should probably implement these... */
+#if defined __UCLIBC_HAS_ADVANCED_REALTIME__
/* Reserve storage for the data of the file associated with FD.
diff --git a/libc/sysdeps/linux/common/Makefile.in
b/libc/sysdeps/linux/common/Makefile.in
index 3b5763c..cddcd74 100644
--- a/libc/sysdeps/linux/common/Makefile.in
+++ b/libc/sysdeps/linux/common/Makefile.in
@@ -81,7 +81,8 @@ CSRC-$(UCLIBC_HAS_REALTIME) += clock_getres.c
clock_gettime.c clock_settime.c \
sched_get_priority_max.c sched_get_priority_min.c sched_getscheduler.c
\
sched_rr_get_interval.c sched_setparam.c sched_setscheduler.c
sigqueue.c
#
clock_getcpuclockid|clock_nanosleep|mq_timedreceive|mq_timedsend|posix_fadvise|posix_fallocate|posix_madvise|posix_memalign|posix_mem_offset|posix_spawnattr_destroy|posix_spawnattr_init|posix_spawnattr_getflags|posix_spawnattr_setflags|posix_spawnattr_getpgroup|posix_spawnattr_setpgroup|posix_spawnattr_getschedparam|posix_spawnattr_setschedparam|posix_spawnattr_getschedpolicy|posix_spawnattr_setschedpolicy|posix_spawnattr_getsigdefault|posix_spawnattr_setsigdefault|posix_spawnattr_getsigmask|posix_spawnattr_setsigmask|posix_spawnattr_init|posix_spawnattr_setflags|posix_spawnattr_setpgroup|posix_spawnattr_setschedparam|posix_spawnattr_setschedpolicy|posix_spawnattr_setsigdefault|posix_spawnattr_setsigmask|posix_spawn_file_actions_addclose|posix_spawn_file_actions_addopen|posix_spawn_file_actions_adddup2|posix_spawn_file_actions_addopen|posix_spawn_file_actions_destroy|posix_spawn_file_actions_init|posix_spawn_file_actions_init|posix_spawn|posix_spawnp|posix_spawnp|posix_typ
ed_mem_get_info|pthread_mutex_timedlock|sem_timedwait
-CSRC-$(UCLIBC_HAS_ADVANCED_REALTIME) += posix_fadvise64.c posix_fadvise.c
+CSRC-$(UCLIBC_HAS_ADVANCED_REALTIME) += posix_fadvise64.c posix_fadvise.c \
+ posix_fallocate.c posix_fallocate64.c
CSRC-$(UCLIBC_SUSV4_LEGACY) += utime.c
CSRC-$(UCLIBC_HAS_EPOLL) += epoll.c
CSRC-$(UCLIBC_HAS_XATTR) += xattr.c
diff --git a/libc/sysdeps/linux/common/bits/kernel-features.h
b/libc/sysdeps/linux/common/bits/kernel-features.h
index 5ea85d2..be00dda 100644
--- a/libc/sysdeps/linux/common/bits/kernel-features.h
+++ b/libc/sysdeps/linux/common/bits/kernel-features.h
@@ -494,6 +494,14 @@
# define __ASSUME_PRIVATE_FUTEX 1
#endif
+/* Support for fallocate was added in 2.6.23,
+ on s390 only after 2.6.23-rc1, on alpha only after 2.6.33-rc1. */
+#if __LINUX_KERNEL_VERSION = 0x020617 \
+ (!defined __s390__ || __LINUX_KERNEL_VERSION = 0x020618) \
+ (!defined __alpha__ || __LINUX_KERNEL_VERSION = 0x020621)
+# define __ASSUME_FALLOCATE 1
+#endif
+
/* getcpu is a syscall for x86-64 since 3.1. */
#if defined __x86_64__ __LINUX_KERNEL_VERSION = 0x030100
# define __ASSUME_GETCPU_SYSCALL 1
diff --git a/libc/sysdeps/linux/common/posix_fallocate.c
b/libc/sysdeps/linux/common/posix_fallocate.c
new file mode 100644
index 000..9aaa6ce
--- /dev/null
+++ b/libc/sysdeps/linux/common/posix_fallocate.c
@@ -0,0 +1,43 @@
+/* vi: set sw=4 ts=4: */
+/*
+ * posix_fallocate() for uClibc
+ *
http://www.opengroup.org/onlinepubs/9699919799/functions/posix_fallocate.html
+ *
+ * Copyright (C) 2000-2006 Erik Andersen ander...@uclibc.org
+ *
+ * Licensed under the LGPL v2.1 or later, see the file COPYING.LIB in this
tarball.
+ */
+
+#include sys/syscall.h
+#include fcntl.h
+#include bits/kernel-features.h
+#include stdint.h
+
+#if defined __NR_fallocate
+int posix_fallocate(int fd, __off_t offset, __off_t len)
+{
+ int ret;
+
+# if
