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[PULL,17/17] linux-user/mmap.c: Use end instead of real_end in target_mmap

Message ID 530c003252e07f1ea9df7f8a9adb1082d3a2eb08.1452521686.git.riku.voipio@linaro.org
State New
Headers show

Commit Message

Riku Voipio Jan. 11, 2016, 2:16 p.m. UTC 
From: Chen Gang <chengang@emindsoft.com.cn>

The fragment must effectively be mapped only to "end" not to "real_end"
(which is a host page aligned address, and thus this is not a fragment).
It is consistent with what it is done in the case of one single page.

Signed-off-by: Chen Gang <gang.chen.5i5j@gmail.com>
Reviewed-by: Laurent Vivier <laurent@vivier.eu>
Signed-off-by: Riku Voipio <riku.voipio@linaro.org>
---
 linux-user/mmap.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)
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Patch

diff --git a/linux-user/mmap.c b/linux-user/mmap.c
index c6c478e..445e8c6 100644
--- a/linux-user/mmap.c
+++ b/linux-user/mmap.c
@@ -538,7 +538,7 @@  abi_long target_mmap(abi_ulong start, abi_ulong len, int prot,
         /* handle the end of the mapping */
         if (end < real_end) {
             ret = mmap_frag(real_end - qemu_host_page_size,
-                            real_end - qemu_host_page_size, real_end,
+                            real_end - qemu_host_page_size, end,
                             prot, flags, fd,
                             offset + real_end - qemu_host_page_size - start);
             if (ret == -1)