GAS test suit problem

[=?gb2312?B?uagg1LTIqg==?= <source_kong at hotmail dot com>]

dear Mr,

when we tried to build the GAS test suite following the CGEN manual 
(http://sources.redhat.com/cgen/docs-1.0/cgen_5.html#SEC165)

1.cd to the CGEN build directory 
2.make gas-test At this point two files have been created in the CGEN build 
directory: `gas-allinsn.exp' and `gas-build.sh'. The `gas-build.sh' script 
normally requires one command line argument: the location of your `gas' 
build directory. If this argument is omitted, the script searches in 
`../gas' automatically. 
3.Copy `gas-allinsn.exp' to 
`toplevel/gas/testsuite/gas/<arch>/allinsn.exp'. 
4.sh gas-build.sh At this point directory tmpdir contains two files: 
`allinsn.s' and `allinsn.d'. File `allinsn.d' usually needs a bit of 
massaging. 
5.Copy `tmpdir/allinsn.[sd]' to `toplevel/gas/testsuite/gas/<arch>' 
6.Run make check in the `gas' build directory and massage things until 
you're satisfied the files are correct. 
7.Check files into CVS. 
When we proceeded to the 4th step, we got the following  error messages,

% sh gas-build.sh 
is not a GAS build directory.

we checked the "gas-build.sh" file, in the head it said:

#/bin/sh
# Generate test result data for m32r GAS testing.
# This script is machine generated.
# It is intended to be run in the testsuite source directory.
#
# Syntax: build.sh /path/to/build/gas
BUILD=$1
if [ ! -f $BUILD/as-new ] ; then
   echo "$BUILD is not a GAS build directory."
   exit 1
fi
.....
.....

our problem is we couldn't find the file "as-new",we didn't know when this 
file was generated? and what the function of it?
We had saw "# Syntax: build.sh /path/to/build/gas",then tried to run 
following command:
%gas-build.sh /home/student/user1/cgen/gas
but the same error occured.


Then we went on checking the "gas-build.sh" file,there was a function 
called gentest as following:
function gentest {
   rm -f a.out
   $BUILD/as-new ${1}.s -o a.out
   echo "#as:" >${1}.d
   echo "#objdump: -dr" >>${1}.d
   echo "#name: $1" >>${1}.d
   $BUILD/../binutils/objdump -dr a.out |      sed -e 's/(/\\(/g' -e 
's/)/\\)/g' -e 's/[+]/\\+/g' -e 's/[*]/\*/g' |    sed -e 's/^.*file 
format.*$/.*: +file format .*/'       >>${1}.d
   rm -f a.out
}

We noticed there are "$BUILD/as-new ${1}.s -o a.out" and " 
$BUILD/../binutils/objdump -dr a.out |......",we couldn't find 
"$BUILD/../binutils/objdump",waht the problem about this?

To sum up,our problems are
1.when these two files "as-new" and "objdump" are generated?
2.what are their functions ?

Thanks for your help!

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