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Merge "Clean up the 32-bit kernel support, fix LP64 fcntl declaration."

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This commit is contained in:
Elliott Hughes 2013-11-07 01:02:54 +00:00 committed by Gerrit Code Review
commit 9e63e03d34
19 changed files with 136 additions and 336 deletions
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10
libc/Android.mk
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@ -170,17 +170,11 @@ libc_dns_src_files += \
netbsd/resolv/res_state.c \
# These are shared by all the 32-bit targets, but not the 64-bit ones.
# These are used by the 32-bit targets, but not the 64-bit ones.
ifeq ($(TARGET_ARCH),$(filter $(TARGET_ARCH),arm mips x86))
libc_common_src_files += \
bionic/fcntl.c \
bionic/fstatfs.c \
bionic/__get_tls.cpp \
bionic/lseek64.c \
bionic/legacy_32_bit_support.cpp \
bionic/ndk_cruft.cpp \
bionic/pread.c \
bionic/pwrite.c \
bionic/statfs.c \
endif

5
libc/SYSCALLS.TXT
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@ -109,8 +109,8 @@ int mincore(void* start, size_t length, unsigned char* vec) all
int __ioctl:ioctl(int, int, void*) all
int readv(int, const struct iovec*, int) all
int writev(int, const struct iovec*, int) all
int __fcntl:fcntl(int, int, void*) arm,mips,x86
int fcntl(int, void*) aarch64,x86_64
int __fcntl64:fcntl64(int, int, void*) arm,mips,x86
int fcntl(int, int, void*) aarch64,x86_64
int flock(int, int) all
int fchmod(int, mode_t) all
int dup(int) all
@ -122,7 +122,6 @@ int fdatasync(int) all
int fchown:fchown32(int, uid_t, gid_t) arm,x86
int fchown:fchown(int, uid_t, gid_t) aarch64,mips,x86_64
void sync(void) all
int __fcntl64:fcntl64(int, int, void*) arm,mips,x86
int __fstatfs64:fstatfs64(int, size_t, struct statfs*) arm,mips,x86
int fstatfs(int, struct statfs*) aarch64,x86_64
int fsetxattr(int, const char*, const void*, size_t, int) all

1
libc/arch-arm/syscalls.mk
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@ -4,7 +4,6 @@ syscall_src += arch-arm/syscalls/__brk.S
syscall_src += arch-arm/syscalls/__clone.S
syscall_src += arch-arm/syscalls/__epoll_pwait.S
syscall_src += arch-arm/syscalls/__exit.S
syscall_src += arch-arm/syscalls/__fcntl.S
syscall_src += arch-arm/syscalls/__fcntl64.S
syscall_src += arch-arm/syscalls/__fstatfs64.S
syscall_src += arch-arm/syscalls/__getcpu.S

16
libc/arch-arm/syscalls/__fcntl.S
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@ -1,16 +0,0 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <asm/unistd.h>
#include <linux/err.h>
#include <machine/asm.h>
ENTRY(__fcntl)
mov ip, r7
ldr r7, =__NR_fcntl
swi #0
mov r7, ip
cmn r0, #(MAX_ERRNO + 1)
bxls lr
neg r0, r0
b __set_errno
END(__fcntl)

1
libc/arch-mips/syscalls.mk
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@ -4,7 +4,6 @@ syscall_src += arch-mips/syscalls/__brk.S
syscall_src += arch-mips/syscalls/__clone.S
syscall_src += arch-mips/syscalls/__epoll_pwait.S
syscall_src += arch-mips/syscalls/__exit.S
syscall_src += arch-mips/syscalls/__fcntl.S
syscall_src += arch-mips/syscalls/__fcntl64.S
syscall_src += arch-mips/syscalls/__fstatfs64.S
syscall_src += arch-mips/syscalls/__getcpu.S

23
libc/arch-mips/syscalls/__fcntl.S
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@ -1,23 +0,0 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <asm/unistd.h>
.text
.globl __fcntl
.align 4
.ent __fcntl
__fcntl:
.set noreorder
.cpload $t9
li $v0, __NR_fcntl
syscall
bnez $a3, 1f
move $a0, $v0
j $ra
nop
1:
la $t9,__set_errno
j $t9
nop
.set reorder
.end __fcntl

1
libc/arch-x86/syscalls.mk
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@ -4,7 +4,6 @@ syscall_src += arch-x86/syscalls/__brk.S
syscall_src += arch-x86/syscalls/__clone.S
syscall_src += arch-x86/syscalls/__epoll_pwait.S
syscall_src += arch-x86/syscalls/__exit.S
syscall_src += arch-x86/syscalls/__fcntl.S
syscall_src += arch-x86/syscalls/__fcntl64.S
syscall_src += arch-x86/syscalls/__fstatfs64.S
syscall_src += arch-x86/syscalls/__getcpu.S

28
libc/arch-x86/syscalls/__fcntl.S
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@ -1,28 +0,0 @@
/* Generated by gensyscalls.py. Do not edit. */
#include <asm/unistd.h>
#include <linux/err.h>
#include <machine/asm.h>
ENTRY(__fcntl)
pushl %ebx
pushl %ecx
pushl %edx
mov 16(%esp), %ebx
mov 20(%esp), %ecx
mov 24(%esp), %edx
movl $__NR_fcntl, %eax
int $0x80
cmpl $-MAX_ERRNO, %eax
jb 1f
negl %eax
pushl %eax
call __set_errno
addl $4, %esp
orl $-1, %eax
1:
popl %edx
popl %ecx
popl %ebx
ret
END(__fcntl)

32
libc/bionic/__get_tls.cpp
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@ -1,32 +0,0 @@
/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
extern "C" void** __get_tls() {
#include "private/__get_tls.h"
return __get_tls();
}

43
libc/bionic/fcntl.c
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@ -1,43 +0,0 @@
/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <stdarg.h>
#include <errno.h>
extern int __fcntl64(int, int, void *);
int fcntl(int fd, int cmd, ...)
{
va_list ap;
void * arg;
va_start(ap, cmd);
arg = va_arg(ap, void *);
va_end(ap);
return __fcntl64(fd, cmd, arg);
}

35
libc/bionic/fstatfs.c
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@ -1,35 +0,0 @@
/*
* Copyright (C) 2010 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/vfs.h>
extern int __fstatfs64(int, size_t, struct statfs *);
int fstatfs(int fd, struct statfs* stat)
{
return __fstatfs64(fd, sizeof(struct statfs), stat);
}

88
libc/bionic/legacy_32_bit_support.cpp Normal file
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@ -0,0 +1,88 @@
/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <errno.h>
#include <stdarg.h>
#include <sys/types.h>
#include <sys/vfs.h>
#include <sys/vfs.h>
#include <unistd.h>
#include <unistd.h>
#if __LP64__
#error This code is only needed on 32-bit systems!
#endif
// System calls we need.
extern "C" int __fcntl64(int, int, void*);
extern "C" int __fstatfs64(int, size_t, struct statfs*);
extern "C" int __llseek(int, unsigned long, unsigned long, off64_t*, int);
extern "C" int __statfs64(const char*, size_t, struct statfs*);
// For fcntl we use the fcntl64 system call to signal that we're using struct flock64.
int fcntl(int fd, int cmd, ...) {
va_list ap;
va_start(ap, cmd);
void* arg = va_arg(ap, void*);
va_end(ap);
return __fcntl64(fd, cmd, arg);
}
// For fstatfs we need to add the extra argument giving the kernel the size of the buffer.
int fstatfs(int fd, struct statfs* stat) {
return __fstatfs64(fd, sizeof(*stat), stat);
}
// For statfs we need to add the extra argument giving the kernel the size of the buffer.
int statfs(const char* path, struct statfs* stat) {
return __statfs64(path, sizeof(*stat), stat);
}
// For lseek64 we need to use the llseek system call which splits the off64_t in two and
// returns the off64_t result via a pointer because 32-bit kernels can't return 64-bit results.
off64_t lseek64(int fd, off64_t off, int whence) {
off64_t result;
unsigned long off_hi = static_cast<unsigned long>(off >> 32);
unsigned long off_lo = static_cast<unsigned long>(off);
if (__llseek(fd, off_hi, off_lo, &result, whence) < 0) {
return -1;
}
return result;
}
// There is no pread for 32-bit off_t, so we need to widen and call pread64.
ssize_t pread(int fd, void* buf, size_t byte_count, off_t offset) {
return pread64(fd, buf, byte_count, static_cast<off64_t>(offset));
}
// There is no pwrite for 32-bit off_t, so we need to widen and call pwrite64.
ssize_t pwrite(int fd, const void* buf, size_t byte_count, off_t offset) {
return pwrite64(fd, buf, byte_count, static_cast<off64_t>(offset));
}

40
libc/bionic/lseek64.c
View File

@ -1,40 +0,0 @@
/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <unistd.h>
extern int __llseek(int fd, unsigned long offset_hi, unsigned long offset_lo, off64_t* result, int whence);
off64_t lseek64(int fd, off64_t off, int whence) {
off64_t result;
if (__llseek(fd, (unsigned long)(off >> 32),(unsigned long)(off), &result, whence) < 0) {
return -1;
}
return result;
}

7
libc/bionic/ndk_cruft.cpp
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@ -48,8 +48,15 @@ extern "C" pid_t __wait4(pid_t pid, int* status, int options, struct rusage* rus
return wait4(pid, status, options, rusage);
}
// TODO: does anything still need this?
extern "C" int __open() {
abort();
}
// TODO: does anything still need this?
extern "C" void** __get_tls() {
#include "private/__get_tls.h"
return __get_tls();
}
#endif

35
libc/bionic/pread.c
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@ -1,35 +0,0 @@
/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/types.h>
#include <unistd.h>
ssize_t pread(int fd, void *buf, size_t nbytes, off_t offset)
{
return pread64(fd, buf, nbytes, (off64_t)offset);
}

35
libc/bionic/pwrite.c
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@ -1,35 +0,0 @@
/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/types.h>
#include <unistd.h>
ssize_t pwrite(int fd, const void *buf, size_t nbytes, off_t offset)
{
return pwrite64(fd, buf, nbytes, (off64_t)offset);
}

35
libc/bionic/statfs.c
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@ -1,35 +0,0 @@
/*
* Copyright (C) 2008 The Android Open Source Project
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions
* are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in
* the documentation and/or other materials provided with the
* distribution.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
* FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
* COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
* BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
* OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
* AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
* SUCH DAMAGE.
*/
#include <sys/vfs.h>
extern int __statfs64(const char *, size_t, struct statfs *);
int statfs(const char* path, struct statfs* stat)
{
return __statfs64(path, sizeof(struct statfs), stat);
}

1
tests/Android.mk
View File

@ -60,6 +60,7 @@ test_c_flags = \
test_src_files = \
dirent_test.cpp \
eventfd_test.cpp \
fcntl_test.cpp \
fenv_test.cpp \
getauxval_test.cpp \
getcwd_test.cpp \

36
tests/fcntl_test.cpp Normal file
View File

@ -0,0 +1,36 @@
/*
* Copyright (C) 2013 The Android Open Source Project
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#include <gtest/gtest.h>
#include <errno.h>
#include <fcntl.h>
TEST(fcntl, fcntl_smoke) {
int fd = open("/proc/version", O_RDONLY);
ASSERT_TRUE(fd != -1);
int flags = fcntl(fd, F_GETFD);
ASSERT_TRUE(flags != -1);
ASSERT_EQ(0, flags & FD_CLOEXEC);
int rc = fcntl(fd, F_SETFD, FD_CLOEXEC);
ASSERT_EQ(0, rc);
flags = fcntl(fd, F_GETFD);
ASSERT_TRUE(flags != -1);
ASSERT_EQ(FD_CLOEXEC, flags & FD_CLOEXEC);
}