[Toybox] [PATCH] bzero -> memset - a sufficiently useful compiler will optimize away differences

Nathan McSween nwmcsween at gmail.com
Fri Feb 17 00:43:49 PST 2012


# HG changeset patch
# User Nathan McSween <nwmcsween at gmail.com>
# Date 1329461552 0
# Node ID bde1bb9b95cd681859672f1e35f0ac32bdb68478
# Parent  64fdb6cd587c3041b94ee98e2a0f5668cae2f5a0
bzero -> memset - a sufficiently useful compiler will optimize away differences

diff -r 64fdb6cd587c -r bde1bb9b95cd lib/args.c
--- a/lib/args.c	Fri Feb 17 06:44:44 2012 +0000
+++ b/lib/args.c	Fri Feb 17 06:52:32 2012 +0000
@@ -181,7 +181,7 @@
 	int i;
 
 	// Parse option format string
-	bzero(gof, sizeof(struct getoptflagstate));
+	memset(gof, '\0', sizeof(struct getoptflagstate));
 	gof->maxargs = INT_MAX;
 	if (!options) return;
 
diff -r 64fdb6cd587c -r bde1bb9b95cd lib/lib.c
--- a/lib/lib.c	Fri Feb 17 06:44:44 2012 +0000
+++ b/lib/lib.c	Fri Feb 17 06:52:32 2012 +0000
@@ -91,7 +91,7 @@
 void *xzalloc(size_t size)
 {
 	void *ret = xmalloc(size);
-	bzero(ret, size);
+	memset(ret, '\0', size);
 	return ret;
 }
 
diff -r 64fdb6cd587c -r bde1bb9b95cd main.c
--- a/main.c	Fri Feb 17 06:44:44 2012 +0000
+++ b/main.c	Fri Feb 17 06:52:32 2012 +0000
@@ -84,7 +84,7 @@
 	// Free old toys contents (to be reentrant)
 
 	if (toys.optargs != toys.argv+1) free(toys.optargs);
-	bzero(&toys, sizeof(struct toy_context));
+	memset(&toys, '\0', sizeof(struct toy_context));
 
 	toys.which = which;
 	toys.argv = argv;
diff -r 64fdb6cd587c -r bde1bb9b95cd toys/toysh.c
--- a/toys/toysh.c	Fri Feb 17 06:44:44 2012 +0000
+++ b/toys/toysh.c	Fri Feb 17 06:52:32 2012 +0000
@@ -291,7 +291,7 @@
 
 		// This fakes lots of what toybox_main() does.
 		memcpy(&temp, &toys, sizeof(struct toy_context));
-		bzero(&toys, sizeof(struct toy_context));
+		memset(&toys, '\0', sizeof(struct toy_context));
 		toy_init(tl, cmd->argv);
 		tl->toy_main();
 		cmd->pid = toys.exitval;

 1329468229.0


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