From: Ciro Santilli <ciro.santilli@arm.com>
Date: Wed, 26 Sep 2018 16:11:07 +0000 (+0100)
Subject: syscall_emul: fix openat when directory does not end in "/"
X-Git-Tag: v19.0.0.0~1448
X-Git-Url: https://git.libre-soc.org/?a=commitdiff_plain;h=006eb36634a35f6b6d44ee63254f31ba96ac5267;p=gem5.git

syscall_emul: fix openat when directory does not end in "/"

Before this commit, the following code:

    dir_fd = open(".", O_DIRECTORY);
    file_fd = openat(dir_fd, "ble", O_CREAT, S_IRUSR | S_IWUSR);

would create a file called ".ble" in the current working directory,
instead of the correct "ble".

Change-Id: I1525a088d49744e29b760387afabef9f1ac98646
Reviewed-by: Andreas Sandberg <andreas.sandberg@arm.com>
Reviewed-on: https://gem5-review.googlesource.com/c/13005
Reviewed-by: Brandon Potter <Brandon.Potter@amd.com>
Maintainer: Brandon Potter <Brandon.Potter@amd.com>
---

diff --git a/src/sim/syscall_emul.hh b/src/sim/syscall_emul.hh
index c7818b6c6..17d410937 100644
--- a/src/sim/syscall_emul.hh
+++ b/src/sim/syscall_emul.hh
@@ -695,7 +695,7 @@ openImpl(SyscallDesc *desc, int callnum, Process *p, ThreadContext *tc,
         auto ffdp = std::dynamic_pointer_cast<FileFDEntry>(fdep);
         if (!ffdp)
             return -EBADF;
-        path.insert(0, ffdp->getFileName());
+        path.insert(0, ffdp->getFileName() + "/");
     }
 
     /**