git-svn-id: https://svn.o-hand.com/repos/poky/trunk@4332 311d38ba-8fff-0310-9ca6-ca027cbcb966
60 lines
1.9 KiB
Diff
60 lines
1.9 KiB
Diff
Index: trunk/linux-user/syscall.c
|
|
===================================================================
|
|
--- trunk.orig/linux-user/syscall.c 2008-04-24 20:16:24.000000000 +0100
|
|
+++ trunk/linux-user/syscall.c 2008-04-24 20:16:32.000000000 +0100
|
|
@@ -440,7 +440,7 @@
|
|
if (!new_brk)
|
|
return target_brk;
|
|
if (new_brk < target_original_brk)
|
|
- return -TARGET_ENOMEM;
|
|
+ return target_brk;
|
|
|
|
brk_page = HOST_PAGE_ALIGN(target_brk);
|
|
|
|
@@ -455,12 +455,11 @@
|
|
mapped_addr = get_errno(target_mmap(brk_page, new_alloc_size,
|
|
PROT_READ|PROT_WRITE,
|
|
MAP_ANON|MAP_FIXED|MAP_PRIVATE, 0, 0));
|
|
- if (is_error(mapped_addr)) {
|
|
- return mapped_addr;
|
|
- } else {
|
|
+
|
|
+ if (!is_error(mapped_addr))
|
|
target_brk = new_brk;
|
|
- return target_brk;
|
|
- }
|
|
+
|
|
+ return target_brk;
|
|
}
|
|
|
|
static inline abi_long copy_from_user_fdset(fd_set *fds,
|
|
Index: trunk/linux-user/mmap.c
|
|
===================================================================
|
|
--- trunk.orig/linux-user/mmap.c 2008-04-24 20:16:16.000000000 +0100
|
|
+++ trunk/linux-user/mmap.c 2008-04-24 20:16:32.000000000 +0100
|
|
@@ -264,6 +264,9 @@
|
|
host_start += offset - host_offset;
|
|
start = h2g(host_start);
|
|
} else {
|
|
+ int flg;
|
|
+ target_ulong addr;
|
|
+
|
|
if (start & ~TARGET_PAGE_MASK) {
|
|
errno = EINVAL;
|
|
return -1;
|
|
@@ -271,6 +274,14 @@
|
|
end = start + len;
|
|
real_end = HOST_PAGE_ALIGN(end);
|
|
|
|
+ for(addr = real_start; addr < real_end; addr += TARGET_PAGE_SIZE) {
|
|
+ flg = page_get_flags(addr);
|
|
+ if( flg & PAGE_RESERVED ) {
|
|
+ errno = ENXIO;
|
|
+ return -1;
|
|
+ }
|
|
+ }
|
|
+
|
|
/* worst case: we cannot map the file because the offset is not
|
|
aligned, so we read it */
|
|
if (!(flags & MAP_ANONYMOUS) &&
|