Change Details

``` For this, use vn_fullpath_hardlink() to resolve executable name for execve(2). This should provide the right hardlink name, used for execution, instead of random hardlink pointing to this binary. Also this should make the AT_EXECNAME reliable for execve(2), since kernel only needs to resolve parent directory path, which should always succeed (except pathological cases like unlinking a directory). PR: 248184 ```

``` For this, use vn_fullpath_hardlink() to resolve executable name for execve(2). This should provide the right hardlink name, used for execution, instead of random hardlink pointing to this binary. Also this should make the AT_EXECNAME reliable for execve(2), since kernel only needs to resolve parent directory path, which should always succeed (except pathological cases like unlinking a directory). PR: 248184 ``` ``` exec: store parent directory and hardlink name of the binary in struct proc ``` ``` sysctl kern.proc.procname: report right hardlink name ```

``` For this, use vn_fullpath_hardlink() to resolve executable name for execve(2). This should provide the right hardlink name, used for execution, instead of random hardlink pointing to this binary. Also this should make the AT_EXECNAME reliable for execve(2), since kernel only needs to resolve parent directory path, which should always succeed (except pathological cases like unlinking a directory). PR: 248184 ``` ``` exec: store parent directory and hardlink name of the binary in struct proc ``` ``` sysctl kern.proc.procname: report right hardlink name ```