Achim Gratz wrote:
Mark Geisert writes:
+ # Do two objcopy calls at once to avoid one system() call overhead
+ system '(', $objcopy, '-R', '.text', $f, ')', '||',
+ $objcopy, '-R', '.bss', '-R', '.data', "t-$f" and exit 1;
That doesn't do what you think it does. It in fact increases the
overhead since it'll start a shell that runs those two commands sand
will even needlessly start the first objcopy in a subshell.
Still faster than two system commands :-). But thanks for the comment; I thought
I was merely grouping args, to get around Perl's greedy arg list building for the
system command. After more experimenting I ended up with:
system '/bin/true', '||', $objcopy, '-R', '.text', $f, '||',
$objcopy, '-R', '.bss', '-R', '.data', "t-$f" and exit 1;
Kind of ugly, but better? It obviates the need for parent to pace itself so the
enclosing loop runs a bit faster.
..mark
