diff options
| -rw-r--r-- | linux-user/syscall.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index 2b13247..516b32b 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -2145,7 +2145,10 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, goto unimplemented; case TARGET_NR_acct: - goto unimplemented; + p = lock_user_string(arg1); + ret = get_errno(acct(path(p))); + unlock_user(p, arg1, 0); + break; case TARGET_NR_umount2: p = lock_user_string(arg1); ret = get_errno(umount2(p, arg2)); @@ -3547,7 +3550,12 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, #endif #ifdef TARGET_NR_madvise case TARGET_NR_madvise: - goto unimplemented; + /* A straight passthrough may not be safe because qemu sometimes + turns private flie-backed mappings into anonymous mappings. + This will break MADV_DONTNEED. + This is a hint, so ignoring and returning success is ok. */ + ret = get_errno(0); + break; #endif #if TARGET_LONG_BITS == 32 case TARGET_NR_fcntl64: |