diff options
| -rwxr-xr-x | configure | 22 | ||||
| -rw-r--r-- | linux-user/syscall.c | 38 |
2 files changed, 46 insertions, 14 deletions
diff --git a/configure b/configure index 85bc598df2..d3c91408cb 100755 --- a/configure +++ b/configure @@ -1285,6 +1285,25 @@ EOF fi fi +# check if utimensat and futimens are supported +utimens=no +cat > $TMPC << EOF +#define _ATFILE_SOURCE +#define _GNU_SOURCE +#include <stddef.h> +#include <fcntl.h> + +int main(void) +{ + utimensat(AT_FDCWD, "foo", NULL, 0); + futimens(0, NULL); + return 0; +} +EOF +if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null ; then + utimens=yes +fi + # Check if tools are available to build documentation. if test "$build_docs" = "yes" -a \( ! -x "`which texi2html 2>/dev/null`" -o ! -x "`which pod2man 2>/dev/null`" \) ; then build_docs="no" @@ -1682,6 +1701,9 @@ fi if test "$atfile" = "yes" ; then echo "#define CONFIG_ATFILE 1" >> $config_h fi +if test "$utimens" = "yes" ; then + echo "#define CONFIG_UTIMENSAT 1" >> $config_h +fi if test "$inotify" = "yes" ; then echo "#define CONFIG_INOTIFY 1" >> $config_h fi diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 056581d866..9e4e061a12 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -406,13 +406,6 @@ static int sys_unlinkat(int dirfd, const char *pathname, int flags) return (unlinkat(dirfd, pathname, flags)); } #endif -#ifdef TARGET_NR_utimensat -static int sys_utimensat(int dirfd, const char *pathname, - const struct timespec times[2], int flags) -{ - return (utimensat(dirfd, pathname, times, flags)); -} -#endif #else /* !CONFIG_ATFILE */ /* @@ -471,12 +464,24 @@ _syscall3(int,sys_symlinkat,const char *,oldpath, #if defined(TARGET_NR_unlinkat) && defined(__NR_unlinkat) _syscall3(int,sys_unlinkat,int,dirfd,const char *,pathname,int,flags) #endif + +#endif /* CONFIG_ATFILE */ + +#ifdef CONFIG_UTIMENSAT +static int sys_utimensat(int dirfd, const char *pathname, + const struct timespec times[2], int flags) +{ + if (pathname == NULL) + return futimens(dirfd, times); + else + return utimensat(dirfd, pathname, times, flags); +} +#else #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) _syscall4(int,sys_utimensat,int,dirfd,const char *,pathname, const struct timespec *,tsp,int,flags) #endif - -#endif /* CONFIG_ATFILE */ +#endif /* CONFIG_UTIMENSAT */ #ifdef CONFIG_INOTIFY #include <sys/inotify.h> @@ -6669,17 +6674,22 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, #if defined(TARGET_NR_utimensat) && defined(__NR_utimensat) case TARGET_NR_utimensat: { - struct timespec ts[2]; - target_to_host_timespec(ts, arg3); - target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); + struct timespec *tsp, ts[2]; + if (!arg3) { + tsp = NULL; + } else { + target_to_host_timespec(ts, arg3); + target_to_host_timespec(ts+1, arg3+sizeof(struct target_timespec)); + tsp = ts; + } if (!arg2) - ret = get_errno(sys_utimensat(arg1, NULL, ts, arg4)); + ret = get_errno(sys_utimensat(arg1, NULL, tsp, arg4)); else { if (!(p = lock_user_string(arg2))) { ret = -TARGET_EFAULT; goto fail; } - ret = get_errno(sys_utimensat(arg1, path(p), ts, arg4)); + ret = get_errno(sys_utimensat(arg1, path(p), tsp, arg4)); unlock_user(p, arg2, 0); } } |