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linux-user: Add configure check for linux/fiemap.h and IOC_FS_FIEMAP 

Add a configure check for the existence of linux/fiemap.h and the
IOC_FS_FIEMAP ioctl. This fixes a compilation failure on Linux
systems which don't have that header file.

Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Peter Maydell 2011-01-10 13:11:24 +00:00 committed by Aurelien Jarno
parent 0322b26e2d
commit dace20dcc9
3 changed files with 25 additions and 1 deletions
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20
configure vendored
View File

@ -2090,6 +2090,23 @@ if compile_prog "$ARCH_CFLAGS" "" ; then
sync_file_range=yes
fi
# check for linux/fiemap.h and FS_IOC_FIEMAP
fiemap=no
cat > $TMPC << EOF
#include <sys/ioctl.h>
#include <linux/fs.h>
#include <linux/fiemap.h>
int main(void)
{
ioctl(0, FS_IOC_FIEMAP, 0);
return 0;
}
EOF
if compile_prog "$ARCH_CFLAGS" "" ; then
fiemap=yes
fi
# check for dup3
dup3=no
cat > $TMPC << EOF
@ -2631,6 +2648,9 @@ fi
if test "$sync_file_range" = "yes" ; then
echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak
fi
if test "$fiemap" = "yes" ; then
echo "CONFIG_FIEMAP=y" >> $config_host_mak
fi
if test "$dup3" = "yes" ; then
echo "CONFIG_DUP3=y" >> $config_host_mak
fi

2
linux-user/ioctls.h
View File

@ -76,7 +76,7 @@
#ifdef FIGETBSZ
IOCTL(FIGETBSZ, IOC_R, MK_PTR(TYPE_LONG))
#endif
#ifdef FS_IOC_FIEMAP
#ifdef CONFIG_FIEMAP
IOCTL_SPECIAL(FS_IOC_FIEMAP, IOC_W | IOC_R, do_ioctl_fs_ioc_fiemap,
MK_PTR(MK_STRUCT(STRUCT_fiemap)))
#endif

4
linux-user/syscall.c
View File

@ -83,7 +83,9 @@ int __clone2(int (*fn)(void *), void *child_stack_base,
#include <linux/kd.h>
#include <linux/mtio.h>
#include <linux/fs.h>
#if defined(CONFIG_FIEMAP)
#include <linux/fiemap.h>
#endif
#include <linux/fb.h>
#include <linux/vt.h>
#include "linux_loop.h"
@ -2986,6 +2988,7 @@ struct IOCTLEntry {
#define MAX_STRUCT_SIZE 4096
#ifdef CONFIG_FIEMAP
/* So fiemap access checks don't overflow on 32 bit systems.
* This is very slightly smaller than the limit imposed by
* the underlying kernel.
@ -3072,6 +3075,7 @@ static abi_long do_ioctl_fs_ioc_fiemap(const IOCTLEntry *ie, uint8_t *buf_temp,
}
return ret;
}
#endif
static IOCTLEntry ioctl_entries[] = {
#define IOCTL(cmd, access, ...) \