fix run-toolchain, qemu-monitor, trace-boot, trace2line, bisect-linux-boot-gem5. Fixes part of #63

I'm sad no one reported qemu-monitor break, that one is kind of important.

count.out arguments broke it as an init program, since the kernel adds trash
parameters to every init.

Is anyone using this repo, I wonder? Keep pushing, keep pushing.
One day it gets good enough, and the whole world will see.

bisect-linux-boot-gem5

@@ -1,34 +1,11 @@
-#!/usr/bin/env python3
-
-import os
-import shutil
-import sys
-
-import common
-
-build_linux = common.import_path_relative_root('build-linux')
-run = common.import_path_relative_root('run')
-
-parser = self.get_argparse(
-    argparse_args={
-        'description': '''Bisect the Linux kernel on gem5 boots.
-
-More information at: https://github.com/cirosantilli/linux-kernel-module-cheat#bisection
-'''},
-    default_args={
-        'emulators': ['gem5'],
-        'linux_build_id': 'bisect',
-    },
-)
-args = self.setup(parser)
-# We need a clean rebuild because rebuilds at different revisions:
-# - may fail
-# - may not actually rebuild all files, e.g. on header changes
-self.rmrf(kwargs['linux_build_dir'])
-build_linux.LinuxComponent().do_build(args)
-status = run.main(args, {
-    'eval': 'm5 exit',
-})
-if status == 125 or status == 127:
-    status = 1
-sys.exit(status)
+#!/usr/bin/env bash
+set -eu
+./build-linux --clean "$@"
+./build-linux "$@"
+set +e
+./run --eval 'm5 exit' "$@" || status=$?
+# https://stackoverflow.com/questions/4713088/how-to-use-git-bisect/22592593#22592593
+if [ "$status" -eq 125 ] || [ "$status" -gt 127 ]; then
+  status=1
+fi
+exit "$status"