Elaborate the highlighting of outdated/deleted executables and libraries

Author: BenBE

DisplayOptionsPanel.c

@@ -107,7 +107,7 @@ DisplayOptionsPanel* DisplayOptionsPanel_new(Settings* settings, ScreenManager*
    Panel_add(super, (Object*) CheckItem_newByRef("Show custom thread names", &(settings->showThreadNames)));
    Panel_add(super, (Object*) CheckItem_newByRef("Show program path", &(settings->showProgramPath)));
    Panel_add(super, (Object*) CheckItem_newByRef("Highlight program \"basename\"", &(settings->highlightBaseName)));
-   Panel_add(super, (Object*) CheckItem_newByRef("Highlight out-dated/removed programs", &(settings->highlightDeletedExe)));
+   Panel_add(super, (Object*) CheckItem_newByRef("Highlight out-dated/removed programs (red) / libraries (yellow)", &(settings->highlightDeletedExe)));
    Panel_add(super, (Object*) CheckItem_newByRef("Merge exe, comm and cmdline in Command", &(settings->showMergedCommand)));
    Panel_add(super, (Object*) CheckItem_newByRef("- Try to find comm in cmdline (when Command is merged)", &(settings->findCommInCmdline)));
    Panel_add(super, (Object*) CheckItem_newByRef("- Try to strip exe from cmdline (when Command is merged)", &(settings->stripExeFromCmdline)));

htop.1.in

@@ -285,19 +285,31 @@ is active, the executable path (/proc/[pid]/exe) and the command name
 (/proc/[pid]/comm) are also shown merged with the command line, if available.
 
 The program basename is highlighted if set in the configuration. Additional
-highlighting can be configured for stale executables (cf. Exe column below).
+highlighting can be configured for stale executables (cf. EXE column below).
 .TP
-.B Comm
+.B COMM
 The command name of the process obtained from /proc/[pid]/comm, if readable.
 .TP
-.B Exe
+.B EXE
 The abbreviated basename of the executable of the process, obtained from
 /proc/[pid]/exe, if readable. htop is able to read this file on linux for ALL
 the processes only if it has the capability CAP_SYS_PTRACE or root privileges.
 
 The basename is marked in red if the executable used to run the process has
-been replaced or deleted on disk since the process started. This additional
-markup can be configured.
+been replaced or deleted on disk since the process started. The information is
+obtained by processing the contents of /proc/[pid]/exe.
+
+Furthermore the basename is marked in yellow if any library is reported as having
+been replaced or deleted on disk since it was last loaded. The information is
+obtained by processing the contents of /proc/[pid]/maps.
+
+When deciding the color the replacement of the main executable always takes
+precedence over replacement of any other library. If only the memory map indicates
+a replacement of the main executable, this will show as if any other library had
+been replaced or deleted.
+
+This additional color markup can be configured in the "Display Options" section of
+the setup screen.
 .TP
 .B PID
 The process ID.