diff options
| -rw-r--r-- | linux-user/elfload.c | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/linux-user/elfload.c b/linux-user/elfload.c index d08fc80..eb8d3ad 100644 --- a/linux-user/elfload.c +++ b/linux-user/elfload.c @@ -1425,10 +1425,11 @@ static void zero_bss(abi_ulong elf_bss, abi_ulong last_bss, int prot) perror("cannot mmap brk"); exit(-1); } + } - /* Since we didn't use target_mmap, make sure to record - the validity of the pages with qemu. */ - page_set_flags(elf_bss & TARGET_PAGE_MASK, last_bss, prot|PAGE_VALID); + /* Ensure that the bss page(s) are valid */ + if ((page_get_flags(last_bss-1) & prot) != prot) { + page_set_flags(elf_bss & TARGET_PAGE_MASK, last_bss, prot | PAGE_VALID); } if (host_start < host_map_start) { |