changed pb_submitter build, added to readme

pb_utils/pb_submitter/.gitignore

+pb_submitter
+test_prog

pb_utils/pb_submitter/Makefile

-obj-m += pb_module.o
-
-all:
-	make -C $(PWD)/../../ M=$(PWD) modules
-
-clean:
-	make -C $(PWD)/../../ M=$(PWD) clean

pb_utils/pb_submitter/build.sh

 #!/bin/bash
 
-#make
-mkdir -p mnt
+if [ ! -d "/mnt/pb_utils/pb_submitter" ]; then
+    echo "are you running this in chroot or the build system?"
+    exit 1
+fi
 
+cd /mnt/pb_utils/pb_submitter
 gcc -static -o pb_submitter pb_submitter.c
 gcc -static -o test_prog test_prog.c
 
-sudo mount -o loop ../build/qemu-image.img ./mnt
-sudo cp pb_submitter test_prog example_run.sh example_plan ./mnt/root
+cp pb_submitter test_prog example_run.sh example_plan /root
 
-sudo umount ./mnt
-
-echo "All done. Run ./run_qemu.sh now"
+echo "All done. Run '/root/example_run.sh' within ./run_qemu.sh now"

pb_utils/pb_submitter/example_run.sh

 #!/bin/sh
-
+cd /root
 ./pb_submitter test_prog example_plan

pb_utils/pb_submitter/pb_submitter.c

@@ -71,7 +71,8 @@ int main(int argc, char** argv)
         return -1;
     }
 
-    for (size_t i = 0; i < plan.num_tasks; i++) {
+    size_t i;
+    for (i = 0; i < plan.num_tasks; i++) {
         cnt = getline(&line, &len, fp);
 
         if (cnt < 0) {

pb_utils/readme.md

@@ -26,6 +26,12 @@ run `./chroot_image.sh`, this drops you in a shell on the created debian and run
 /mnt/pb_utils/mod_gen/build.sh
 ```
 
+## chroot into debian rootfs to build pb_submitter
+run `./chroot_image.sh`, this drops you in a shell on the created debian and run
+```bash
+/mnt/pb_utils/pb_submitter/build.sh
+```
+
 # run the build kernel with the created rootfs
 run `./run_qemu.sh`