diff options
| -rw-r--r-- | linux-user/mmap.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/linux-user/mmap.c b/linux-user/mmap.c index 7b459d5100..c6c478e552 100644 --- a/linux-user/mmap.c +++ b/linux-user/mmap.c @@ -186,10 +186,12 @@ static int mmap_frag(abi_ulong real_start, if (prot_new != (prot1 | PROT_WRITE)) mprotect(host_start, qemu_host_page_size, prot_new); } else { - /* just update the protection */ if (prot_new != prot1) { mprotect(host_start, qemu_host_page_size, prot_new); } + if (prot_new & PROT_WRITE) { + memset(g2h(start), 0, end - start); + } } return 0; } |