diff options
| -rw-r--r-- | linux-user/syscall.c | 8 |
1 files changed, 6 insertions, 2 deletions
diff --git a/linux-user/syscall.c b/linux-user/syscall.c index ac7a11192b..34599d0f09 100644 --- a/linux-user/syscall.c +++ b/linux-user/syscall.c @@ -1137,6 +1137,7 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, ret = 0; /* avoid warning */ break; case TARGET_NR_read: + page_unprotect_range((void *)arg2, arg3); ret = get_errno(read(arg1, (void *)arg2, arg3)); break; case TARGET_NR_write: @@ -2191,9 +2192,12 @@ long do_syscall(void *cpu_env, int num, long arg1, long arg2, long arg3, case TARGET_NR_prctl: goto unimplemented; case TARGET_NR_pread: - goto unimplemented; + page_unprotect_range((void *)arg2, arg3); + ret = get_errno(pread(arg1, (void *)arg2, arg3, arg4)); + break; case TARGET_NR_pwrite: - goto unimplemented; + ret = get_errno(pwrite(arg1, (void *)arg2, arg3, arg4)); + break; case TARGET_NR_chown: ret = get_errno(chown((const char *)arg1, arg2, arg3)); break; |