X-Git-Url: http://dolda2000.com/gitweb/?p=utils.git;a=blobdiff_plain;f=sztest;h=9ca4e1f41dca34cc2e9954617023c28c93c18266;hp=239397121cc23eff36a5764ab02a2825303f901a;hb=refs%2Fheads%2Fmaster;hpb=c5f010d44d71cb874e5aaf80c51c6cadaf9cfe98

diff --git a/sztest b/sztest
index 2393971..9ca4e1f 100755
--- a/sztest
+++ b/sztest
@@ -1,16 +1,26 @@
-#!/bin/sh
+#!/bin/bash
 
-if [ $# -lt 1 ]; then
-    echo "usage: sztest [-H SYS-HEADER] [-L LOCAL-HEADER] TYPE [CCFLAGS...]" >&2
-    exit 1
-fi
+usage() {
+    echo "usage: sztest [-hab] [-H SYS-HEADER] [-L LOCAL-HEADER] TYPE [CCFLAGS...]"
+}
 
+mode=size
 sheaders=
 lheaders=
 while [ "${1:0:1}" = "-" ]; do
     opt="$1"
     shift
     case "$opt" in
+	"-h")
+	    usage
+	    exit 0
+	    ;;
+	"-a")
+	    mode=align
+	    ;;
+	"-b")
+	    mode=both
+	    ;;
 	"-H")
 	    sheaders="$sheaders $1"
 	    shift
@@ -21,6 +31,10 @@ while [ "${1:0:1}" = "-" ]; do
 	    ;;
     esac
 done
+if [ $# -lt 1 ]; then
+    usage >&2
+    exit 1
+fi
 type="$1"
 shift
 file="$(mktemp /tmp/sztestXXXXXX)"
@@ -40,7 +54,19 @@ done
 cat >>"$file.c" <<EOF
 int main(int argc, char **argv)
 {
-    printf("%zi\n", sizeof($type));
+EOF
+case "$mode" in
+    size)
+	echo "    printf(\"%zi\\n\", sizeof($type));" >>"$file.c"
+	;;
+    align)
+	echo "    printf(\"%zi\\n\", __alignof__($type));" >>"$file.c"
+	;;
+    both)
+	echo "    printf(\"%zi %zi\\n\", sizeof($type), __alignof__($type));" >>"$file.c"
+	;;
+esac
+cat >>"$file.c" <<EOF
     return(0);
 }
 EOF