PWN-Hunter/android_external_toybox
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Show the compiler how to optimize out the option parsing logic when nothing

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is using it.
This commit is contained in:
Rob Landley 2007-06-01 14:31:45 -04:00
parent b841cd2f8c
commit fc2224b26c
1 changed files with 13 additions and 1 deletions
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14
main.c
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@ -50,6 +50,18 @@ struct toy_list *toy_find(char *name)
}
}
// Figure out whether or not anything is using the option parsing logic,
// because the compiler can't figure out whether or not to optimize it away
// on its' own.
#undef NEWTOY
#undef OLDTOY
#define NEWTOY(name, opts, flags) opts ||
#define OLDTOY(name, oldname, opts, flags) opts ||
static const NEED_OPTIONS =
#include "toys/toylist.h"
0; // Ends the opts || opts || opts...
void toy_init(struct toy_list *which, char *argv[])
{
// Free old toys contents here?
@ -57,7 +69,7 @@ void toy_init(struct toy_list *which, char *argv[])
toys.which = which;
toys.argv = argv;
toys.exitval = 1;
if (which->options) get_optflags();
if (NEED_OPTIONS && which->options) get_optflags();
else toys.optargs = argv+1;
}