diff options
| -rwxr-xr-x | configure | 36 | ||||
| -rw-r--r-- | linux-user/syscall.c | 10 |
2 files changed, 46 insertions, 0 deletions
@@ -1569,6 +1569,36 @@ if compile_prog "" "" ; then eventfd=yes fi +# check for fallocate +fallocate=no +cat > $TMPC << EOF +#include <fcntl.h> + +int main(void) +{ + fallocate(0, 0, 0, 0); + return 0; +} +EOF +if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null ; then + fallocate=yes +fi + +# check for dup3 +dup3=no +cat > $TMPC << EOF +#include <unistd.h> + +int main(void) +{ + dup3(0, 0, 0); + return 0; +} +EOF +if $cc $ARCH_CFLAGS -o $TMPE $TMPC 2> /dev/null ; then + dup3=yes +fi + # Check if tools are available to build documentation. if test "$docs" != "no" ; then if test -x "`which texi2html 2>/dev/null`" -a \ @@ -1950,6 +1980,12 @@ fi if test "$eventfd" = "yes" ; then echo "CONFIG_EVENTFD=y" >> $config_host_mak fi +if test "$fallocate" = "yes" ; then + echo "CONFIG_FALLOCATE=y" >> $config_host_mak +fi +if test "$dup3" = "yes" ; then + echo "CONFIG_DUP3=y" >> $config_host_mak +fi if test "$inotify" = "yes" ; then echo "CONFIG_INOTIFY=y" >> $config_host_mak fi diff --git a/linux-user/syscall.c b/linux-user/syscall.c index bf06d14fc7..d07c381f02 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -4746,6 +4746,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, case TARGET_NR_dup2: ret = get_errno(dup2(arg1, arg2)); break; +#if defined(CONFIG_DUP3) && defined(TARGET_NR_dup3) + case TARGET_NR_dup3: + ret = get_errno(dup3(arg1, arg2, arg3)); + break; +#endif #ifdef TARGET_NR_getppid /* not on alpha */ case TARGET_NR_getppid: ret = get_errno(getppid()); @@ -7013,6 +7018,11 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, break; #endif #endif /* CONFIG_EVENTFD */ +#if defined(CONFIG_FALLOCATE) && defined(TARGET_NR_fallocate) + case TARGET_NR_fallocate: + ret = get_errno(fallocate(arg1, arg2, arg3, arg4)); + break; +#endif default: unimplemented: gemu_log("qemu: Unsupported syscall: %d\n", num); |