mention objdump

Author: Vladimir Kotal

intro.tex

@@ -1321,9 +1321,8 @@
 \item The following examples \emsl{are from Solaris}.  Finding equivalent
 commands and/or options on Linux is left as an exercise to the reader.
 \begin{itemize}
-\item ELF sections are listed via \texttt{elfdump -c} (GNU has
-\texttt{objdump} and \texttt{readelf}).  More on program sections on page
-\pageref{ELF}.
+\item ELF sections are listed via \texttt{elfdump -c} (GNU has \texttt{readelf},
+macOS has \texttt{objdump}).  More on program sections on page \pageref{ELF}.
 \item What a dynamic linker is used is in section \texttt{.interp}, see
 ''\texttt{elf\-dump -i}'' and ``\texttt{ld -I}''.  It means you could write your
 own dynamic linker and set it via the \texttt{-I} option for \texttt{ld} to your

proc.tex

@@ -760,6 +760,7 @@
 or more segments, each of which contains between 0 and 255 sections.
 \item On Solaris, the \texttt{elfdump} command allows listing sections of the
 ELF file in a human readable form. On Linux distributions, use \texttt{readelf}.
+macOS (which does not use ELF but the Mach-O format), use \texttt{objdump}.
 \item The \emph{ELF header} contains basic information about the file.  Try
 ``\texttt{readelf -h /bin/ls}'' on any Linux distribution.
 \item The \emph{program header table} is only present in files that are