diff options
| author | Laurent Vivier <laurent@vivier.eu> | 2016-02-21 10:56:23 +0100 |
|---|---|---|
| committer | Riku Voipio <riku.voipio@linaro.org> | 2016-02-24 15:22:15 +0200 |
| commit | f894efd19917321844b31e5dd7a061fdc6fb322d (patch) | |
| tree | c570246a2fc1ca1531104a36f5e9549bfe842438 /linux-user | |
| parent | 93a92d3bd649cd315db47b9fb5dcb6af657cc22c (diff) | |
linux-user: add getrandom() syscall
getrandom() has been introduced in kernel 3.17 and is now used during
the boot sequence of Debian unstable (stretch/sid).
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
Diffstat (limited to 'linux-user')
| -rw-r--r-- | linux-user/syscall.c | 13 |
1 files changed, 13 insertions, 0 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 539183a788..951753143c 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -249,6 +249,9 @@ _syscall2(int, ioprio_get, int, which, int, who) #if defined(TARGET_NR_ioprio_set) && defined(__NR_ioprio_set) _syscall3(int, ioprio_set, int, which, int, who, int, ioprio) #endif +#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom) +_syscall3(int, getrandom, void *, buf, size_t, buflen, unsigned int, flags) +#endif static bitmask_transtbl fcntl_flags_tbl[] = { { TARGET_O_ACCMODE, TARGET_O_WRONLY, O_ACCMODE, O_WRONLY, }, @@ -7541,6 +7544,16 @@ abi_long do_syscall(void *cpu_env, int num, abi_long arg1, ret = get_errno(shutdown(arg1, arg2)); break; #endif +#if defined(TARGET_NR_getrandom) && defined(__NR_getrandom) + case TARGET_NR_getrandom: + p = lock_user(VERIFY_WRITE, arg1, arg2, 0); + if (!p) { + goto efault; + } + ret = get_errno(getrandom(p, arg2, arg3)); + unlock_user(p, arg1, ret); + break; +#endif #ifdef TARGET_NR_socket case TARGET_NR_socket: ret = do_socket(arg1, arg2, arg3); |