+++ /dev/null
-From: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
-Date: Tue, 17 Apr 2012 09:30:15 +0200
-Subject: [PATCH] libc: add posix_fallocate()
-
-Signed-off-by: Bernhard Reutner-Fischer <rep.dot.nop@gmail.com>
----
- 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
- create mode 100644 test/unistd/tst-posix_fallocate64.c
-
---- a/include/fcntl.h
-+++ b/include/fcntl.h
-@@ -210,9 +210,7 @@ extern int posix_fadvise64 (int __fd, __
-
- #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.
-
---- a/libc/sysdeps/linux/common/Makefile.in
-+++ b/libc/sysdeps/linux/common/Makefile.in
-@@ -81,7 +81,8 @@ CSRC-$(UCLIBC_HAS_REALTIME) += clock_get
- sched_get_priority_max.c sched_get_priority_min.c sched_getscheduler.c \
- sched_rr_get_interval.c sched_setparam.c sched_setscheduler.c sigqueue.c
- # clock_getcpuclockid|clock_nanosleep|mq_timedreceive|mq_timedsend|posix_fadvise|posix_fallocate|posix_madvise|posix_memalign|posix_mem_offset|posix_spawnattr_destroy|posix_spawnattr_init|posix_spawnattr_getflags|posix_spawnattr_setflags|posix_spawnattr_getpgroup|posix_spawnattr_setpgroup|posix_spawnattr_getschedparam|posix_spawnattr_setschedparam|posix_spawnattr_getschedpolicy|posix_spawnattr_setschedpolicy|posix_spawnattr_getsigdefault|posix_spawnattr_setsigdefault|posix_spawnattr_getsigmask|posix_spawnattr_setsigmask|posix_spawnattr_init|posix_spawnattr_setflags|posix_spawnattr_setpgroup|posix_spawnattr_setschedparam|posix_spawnattr_setschedpolicy|posix_spawnattr_setsigdefault|posix_spawnattr_setsigmask|posix_spawn_file_actions_addclose|posix_spawn_file_actions_addopen|posix_spawn_file_actions_adddup2|posix_spawn_file_actions_addopen|posix_spawn_file_actions_destroy|posix_spawn_file_actions_init|posix_spawn_file_actions_init|posix_spawn|posix_spawnp|posix_spawnp|posix_typed_mem_get_info|pthread_mutex_timedlock|sem_timedwait
--CSRC-$(UCLIBC_HAS_ADVANCED_REALTIME) += posix_fadvise64.c posix_fadvise.c posix_madvise.c
-+CSRC-$(UCLIBC_HAS_ADVANCED_REALTIME) += posix_fadvise64.c posix_fadvise.c posix_madvise.c \
-+ posix_fallocate.c posix_fallocate64.c
- CSRC-$(UCLIBC_SUSV4_LEGACY) += utime.c
- CSRC-$(UCLIBC_HAS_EPOLL) += epoll.c
- CSRC-$(UCLIBC_HAS_XATTR) += xattr.c
---- 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
---- /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 <andersen@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 __WORDSIZE == 32
-+ uint32_t off_low = offset;
-+ uint32_t len_low = len;
-+ /* may assert that these >>31 are 0 */
-+ uint32_t zero = 0;
-+ INTERNAL_SYSCALL_DECL(err);
-+ ret = (int) (INTERNAL_SYSCALL(fallocate, err, 6, fd, 0,
-+ __LONG_LONG_PAIR (zero, off_low),
-+ __LONG_LONG_PAIR (zero, len_low)));
-+# elif __WORDSIZE == 64
-+ INTERNAL_SYSCALL_DECL(err);
-+ ret = (int) (INTERNAL_SYSCALL(fallocate, err, 4, fd, 0, offset, len));
-+# else
-+# error your machine is neither 32 bit or 64 bit ... it must be magical
-+#endif
-+ if (unlikely(INTERNAL_SYSCALL_ERROR_P (ret, err)))
-+ return INTERNAL_SYSCALL_ERRNO (ret, err);
-+ return 0;
-+}
-+# if defined __UCLIBC_HAS_LFS__ && __WORDSIZE == 64
-+strong_alias(posix_fallocate,posix_fallocate64)
-+# endif
-+#endif
---- /dev/null
-+++ b/libc/sysdeps/linux/common/posix_fallocate64.c
-@@ -0,0 +1,39 @@
-+/* 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 <andersen@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
-+
-+# if __WORDSIZE == 64
-+/* Can use normal posix_fallocate() */
-+# elif __WORDSIZE == 32
-+int posix_fallocate64(int fd, __off64_t offset, __off64_t len)
-+{
-+ int ret;
-+ uint32_t off_low = offset & 0xffffffff;
-+ uint32_t off_high = offset >> 32;
-+ uint32_t len_low = len & 0xffffffff;
-+ uint32_t len_high = len >> 32;
-+ INTERNAL_SYSCALL_DECL(err);
-+ ret = (int) (INTERNAL_SYSCALL(fallocate, err, 6, fd, 0,
-+ __LONG_LONG_PAIR (off_high, off_low),
-+ __LONG_LONG_PAIR (len_high, len_low)));
-+ if (unlikely(INTERNAL_SYSCALL_ERROR_P (ret, err)))
-+ return INTERNAL_SYSCALL_ERRNO (ret, err);
-+ return 0;
-+}
-+# else
-+# error your machine is neither 32 bit or 64 bit ... it must be magical
-+# endif
-+#endif
---- a/test/.gitignore
-+++ b/test/.gitignore
-@@ -302,6 +302,8 @@ unistd/getcwd
- unistd/getopt
- unistd/getopt_long
- unistd/tstgetopt
-+unistd/tst-posix_fallocate
-+unistd/tst-posix_fallocate64
- unistd/tst-preadwrite
- unistd/tst-preadwrite64
- unistd/vfork
---- a/test/unistd/Makefile.in
-+++ b/test/unistd/Makefile.in
-@@ -2,7 +2,10 @@
- # Licensed under the LGPL v2.1, see the file COPYING.LIB in this tarball.
-
- ifeq ($(UCLIBC_HAS_LFS),)
--TESTS_DISABLED := tst-preadwrite64
-+TESTS_DISABLED := tst-preadwrite64 tst-posix_fallocate64
-+endif
-+ifeq ($(UCLIBC_HAS_ADVANCED_REALTIME),)
-+TESTS_DISABLED := tst-posix_fallocate
- endif
- OPTS_getopt := -abcXXX -9
- OPTS_getopt_long := --add XXX --delete YYY --verbose
---- /dev/null
-+++ b/test/unistd/tst-posix_fallocate.c
-@@ -0,0 +1,127 @@
-+#include <fcntl.h>
-+#include <sys/stat.h>
-+
-+#ifndef TST_POSIX_FALLOCATE64
-+# define stat64 stat
-+# define fstat64 fstat
-+# else
-+# ifndef O_LARGEFILE
-+# error no O_LARGEFILE but you want to test with LFS enabled
-+# endif
-+#endif
-+
-+static void do_prepare (void);
-+#define PREPARE(argc, argv) do_prepare ()
-+static int do_test (void);
-+#define TEST_FUNCTION do_test ()
-+#include <test-skeleton.c>
-+
-+static int fd;
-+static void
-+do_prepare (void)
-+{
-+ fd = create_temp_file ("tst-posix_fallocate.", NULL);
-+ if (fd == -1)
-+ {
-+ printf ("cannot create temporary file: %m\n");
-+ exit (1);
-+ }
-+}
-+
-+
-+static int
-+do_test (void)
-+{
-+ struct stat64 st;
-+
-+ if (fstat64 (fd, &st) != 0)
-+ {
-+ puts ("1st fstat failed");
-+ return 1;
-+ }
-+
-+ if (st.st_size != 0)
-+ {
-+ puts ("file not created with size 0");
-+ return 1;
-+ }
-+
-+ if (posix_fallocate (fd, 512, 768) != 0)
-+ {
-+ puts ("1st posix_fallocate call failed");
-+ return 1;
-+ }
-+
-+ if (fstat64 (fd, &st) != 0)
-+ {
-+ puts ("2nd fstat failed");
-+ return 1;
-+ }
-+
-+ if (st.st_size != 512 + 768)
-+ {
-+ printf ("file size after 1st posix_fallocate call is %llu, expected %u\n",
-+ (unsigned long long int) st.st_size, 512u + 768u);
-+ return 1;
-+ }
-+
-+ if (posix_fallocate (fd, 0, 1024) != 0)
-+ {
-+ puts ("2nd posix_fallocate call failed");
-+ return 1;
-+ }
-+
-+ if (fstat64 (fd, &st) != 0)
-+ {
-+ puts ("3rd fstat failed");
-+ return 1;
-+ }
-+
-+ if (st.st_size != 512 + 768)
-+ {
-+ puts ("file size changed in 2nd posix_fallocate");
-+ return 1;
-+ }
-+
-+ if (posix_fallocate (fd, 2048, 64) != 0)
-+ {
-+ puts ("3rd posix_fallocate call failed");
-+ return 1;
-+ }
-+
-+ if (fstat64 (fd, &st) != 0)
-+ {
-+ puts ("4th fstat failed");
-+ return 1;
-+ }
-+
-+ if (st.st_size != 2048 + 64)
-+ {
-+ printf ("file size after 3rd posix_fallocate call is %llu, expected %u\n",
-+ (unsigned long long int) st.st_size, 2048u + 64u);
-+ return 1;
-+ }
-+#ifdef TST_POSIX_FALLOCATE64
-+ if (posix_fallocate64 (fd, 4097ULL, 4294967295ULL + 2ULL) != 0)
-+ {
-+ puts ("4th posix_fallocate call failed");
-+ return 1;
-+ }
-+
-+ if (fstat64 (fd, &st) != 0)
-+ {
-+ puts ("5th fstat failed");
-+ return 1;
-+ }
-+
-+ if (st.st_size != 4097ULL + 4294967295ULL + 2ULL)
-+ {
-+ printf ("file size after 4th posix_fallocate call is %llu, expected %llu\n",
-+ (unsigned long long int) st.st_size, 4097ULL + 4294967295ULL + 2ULL);
-+ return 1;
-+ }
-+#endif
-+ close (fd);
-+
-+ return 0;
-+}
---- /dev/null
-+++ b/test/unistd/tst-posix_fallocate64.c
-@@ -0,0 +1,2 @@
-+#define TST_POSIX_FALLOCATE64
-+#include "tst-posix_fallocate.c"
projects / openwrt / svn-archive / archive.git / blobdiff