diff options
| author | Peter Maydell <peter.maydell@linaro.org> | 2011-01-06 11:05:10 +0000 |
|---|---|---|
| committer | Riku Voipio <riku.voipio@iki.fi> | 2011-01-07 17:13:22 +0200 |
| commit | c727f47d59641c43ce171126232fd8049296adf6 (patch) | |
| tree | fce1c2a0ebc893077b5ac9ca851d2f31f1f0566c | |
| parent | 2a704b137f1acfbd972aa6e9f031c5015c7e28cb (diff) | |
linux-user: Implement sync_file_range{,2} syscalls
Implement the missing syscalls sync_file_range and sync_file_range2.
The latter in particular is used by newer versions of apt on Ubuntu
for ARM.
Signed-off-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Riku Voipio <riku.voipio@iki.fi>
| -rwxr-xr-x | configure | 18 | ||||
| -rw-r--r-- | linux-user/strace.list | 6 | ||||
| -rw-r--r-- | linux-user/syscall.c | 23 |
3 files changed, 47 insertions, 0 deletions
@@ -2075,6 +2075,21 @@ if compile_prog "$ARCH_CFLAGS" "" ; then fallocate=yes fi +# check for sync_file_range +sync_file_range=no +cat > $TMPC << EOF +#include <fcntl.h> + +int main(void) +{ + sync_file_range(0, 0, 0, 0); + return 0; +} +EOF +if compile_prog "$ARCH_CFLAGS" "" ; then + sync_file_range=yes +fi + # check for dup3 dup3=no cat > $TMPC << EOF @@ -2613,6 +2628,9 @@ fi if test "$fallocate" = "yes" ; then echo "CONFIG_FALLOCATE=y" >> $config_host_mak fi +if test "$sync_file_range" = "yes" ; then + echo "CONFIG_SYNC_FILE_RANGE=y" >> $config_host_mak +fi if test "$dup3" = "yes" ; then echo "CONFIG_DUP3=y" >> $config_host_mak fi diff --git a/linux-user/strace.list b/linux-user/strace.list index 97b7f7691d..d7be0e7a68 100644 --- a/linux-user/strace.list +++ b/linux-user/strace.list @@ -1518,3 +1518,9 @@ #ifdef TARGET_NR_utimensat { TARGET_NR_utimensat, "utimensat", NULL, print_utimensat, NULL }, #endif +#ifdef TARGET_NR_sync_file_range +{ TARGET_NR_sync_file_range, "sync_file_range", NULL, NULL, NULL }, +#endif +#ifdef TARGET_NR_sync_file_range2 +{ TARGET_NR_sync_file_range2, "sync_file_range2", NULL, NULL, NULL }, +#endif diff --git a/linux-user/syscall.c b/linux-user/syscall.c index c3e870654d..1939a5f0ec 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -7365,6 +7365,29 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, ret = get_errno(fallocate(arg1, arg2, arg3, arg4)); break; #endif +#if defined(CONFIG_SYNC_FILE_RANGE) +#if defined(TARGET_NR_sync_file_range) + case TARGET_NR_sync_file_range: +#if TARGET_ABI_BITS == 32 + ret = get_errno(sync_file_range(arg1, target_offset64(arg2, arg3), + target_offset64(arg4, arg5), arg6)); +#else + ret = get_errno(sync_file_range(arg1, arg2, arg3, arg4)); +#endif + break; +#endif +#if defined(TARGET_NR_sync_file_range2) + case TARGET_NR_sync_file_range2: + /* This is like sync_file_range but the arguments are reordered */ +#if TARGET_ABI_BITS == 32 + ret = get_errno(sync_file_range(arg1, target_offset64(arg3, arg4), + target_offset64(arg5, arg6), arg2)); +#else + ret = get_errno(sync_file_range(arg1, arg3, arg4, arg2)); +#endif + break; +#endif +#endif default: unimplemented: gemu_log("qemu: Unsupported syscall: %d\n", num); |