[PATCH] linux-user/elfload: use MAP_FIXED in pgb_reserved_va

["Alex Bennée" <alex.bennee@linaro.org>]

Given we assert the requested address matches what we asked we should
also make that clear in the mmap flags. Otherwise we see failures in
the GitLab environment for some currently unknown but allowable
reason.

Signed-off-by: Alex Bennée <alex.bennee@linaro.org>
---
 linux-user/elfload.c | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/linux-user/elfload.c b/linux-user/elfload.c
index b5cb21384a1..be8facfbcc8 100644
--- a/linux-user/elfload.c
+++ b/linux-user/elfload.c
@@ -2294,7 +2294,7 @@ static void pgb_dynamic(const char *image_name, long align)
 static void pgb_reserved_va(const char *image_name, abi_ulong guest_loaddr,
                             abi_ulong guest_hiaddr, long align)
 {
-    const int flags = MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE;
+    const int flags = MAP_ANONYMOUS | MAP_PRIVATE | MAP_NORESERVE | MAP_FIXED;
     void *addr, *test;
 
     if (guest_hiaddr > reserved_va) {
-- 
2.20.1