b43-asm: Add trivial selftest.

It currently fails due to a too strict ret-after-jmp sanity check.

Signed-off-by: Michael Buesch <mb@bu3sch.de>

diff --git a/assembler/selftest.sh b/assembler/selftest.sh
new file mode 100755 (executable)
index 0000000..7f2f0c5
--- /dev/null
+++ b/assembler/selftest.sh
@@ -0,0 +1,77 @@
+#!/bin/bash
+
+ASM="b43-asm"
+DASM="b43-dasm"
+SUM="sha1sum"
+TMPDIR="/tmp"
+
+
+if [ $# -ne 1 ]; then
+       echo "b43-(d)asm trivial selftest"
+       echo "This selftest will take the binary input file, disassemble"
+       echo "it, assemble it and compare the two binaries."
+       echo
+       echo "Usage: $0 /path/to/binary"
+       exit 1
+fi
+infile="$1"
+
+if ! [ -r "$infile" ]; then
+       echo "Can not read input binary $infile"
+       exit 1
+fi
+
+rnd="$RANDOM"
+asmfile="$TMPDIR/b43-asm-selftest-$rnd.asm"
+outfile="$TMPDIR/b43-asm-selftest-$rnd.bin"
+
+function cleanup
+{
+       rm -f "$asmfile"
+       rm -f "$outfile"
+}
+cleanup
+
+
+$DASM "$infile" "$asmfile"
+err=$?
+if [ $err -ne 0 ]; then
+       echo "Disassembling FAILED: $err"
+       cleanup
+       exit 1
+fi
+$ASM "$asmfile" "$outfile"
+err=$?
+if [ $err -ne 0 ]; then
+       echo "Assembling FAILED: $err"
+       cleanup
+       exit 1
+fi
+
+orig_sum="$($SUM "$infile" | cut -f1 -d ' ')"
+err=$?
+if [ $err -ne 0 ] || [ -z "$orig_sum" ]; then
+       echo "Checksumming of input file failed: $err"
+       cleanup
+       exit 1
+fi
+out_sum="$($SUM "$outfile" | cut -f1 -d ' ')"
+err=$?
+if [ $err -ne 0 ] || [ -z "$out_sum" ]; then
+       echo "Checksumming of reassembled file failed: $err"
+       cleanup
+       exit 1
+fi
+cleanup
+
+echo "Input file checksum:    $orig_sum"
+echo "Re-assembled checksum:  $out_sum"
+echo
+
+if [ "$orig_sum" != "$out_sum" ]; then
+       echo "FAILURE: Checksums don't match!"
+       exit 1
+fi
+echo "Everything is OK"
+
+exit 0