[demos] Update Linux LTP test demo

.github/workflows/code_coverage.yaml

@@ -98,7 +98,7 @@ jobs:
 
     - name: LTP test
       run: docker exec code_coverage bash -c "cd /root/occlum/demos/linux-ltp && ./dl_and_build_ltp.sh && SGX_MODE=SIM ./prepare_ltp.sh;
-            cd ltp_instance;
+            cd occlum_instance;
             occlum run /opt/ltp/run-ltp.sh -f syscalls-occlum;
             cd /root/occlum/demos && rm -rf ./linux-ltp"
     

.github/workflows/demo_test.yml

@@ -1144,7 +1144,7 @@ jobs:
       run: docker exec ${{ github.job }} bash -c "cd /root/occlum/demos/linux-ltp && SGX_MODE=SIM ./prepare_ltp.sh"
 
     - name: Run the LTP demo
-      run: docker exec ${{ github.job }} bash -c "cd /root/occlum/demos/linux-ltp/ltp_instance;
+      run: docker exec ${{ github.job }} bash -c "cd /root/occlum/demos/linux-ltp/occlum_instance;
             occlum run /opt/ltp/run-ltp.sh -f syscalls-occlum"
     
     - name: Clean LTP test

demos/linux-ltp/README.md

@@ -18,7 +18,7 @@ Some test cases are failed due to multiple reasons, such as syscall is not imple
 * Some default LTP test cases may make the Occlum crash or hang (Only checked the cases in syscalls for now).
 * Occlum runable syscall test cases are defined in [`syscalls-occlum`](./syscalls-occlum). It may be updated with Occlum development.
 
-The original [`syscalls`] test cases could be found in the built demo `ltp_instance/image/opt/ltp/runtest/syscalls`.
+The original [`syscalls`] test cases could be found in the built demo `occlum_instance/image/opt/ltp/runtest/syscalls`.
 Panic/Sefault/hang testcases could be listed by a simple diff for these two files.
 
 ## Prepare the Occlum instance for LTP demo
@@ -39,8 +39,13 @@ The script `run-ltp.sh` supports two optional arguments as below.
     example: run-ltp.sh -f syscalls-occlum -s timerfd
 ```
 
+To run in Occlum, use the following command.
+```
+occlum run /opt/ltp/run-ltp.sh -f syscalls-occlum -s timerfd
+```
+
 If no options provided, all the test cases in default LTP syscalls will be run one by one.
 
 Note:
 
-* The `CMDFILES` are defined in the LTP install path, such as `ltp_instance/image/opt/ltp/runtest/` in this demo.
+* The `CMDFILES` are defined in the LTP install path, such as `occlum_instance/image/opt/ltp/runtest/` in this demo.

demos/linux-ltp/prepare_ltp.sh

@@ -1,10 +1,10 @@
 #! /bin/bash
 set -e
 
-rm -rf ltp_instance
-occlum new ltp_instance
+rm -rf occlum_instance
+occlum new occlum_instance
 
-cd ltp_instance
+cd occlum_instance
 rm -rf image
 copy_bom -f ../ltp.yaml --root image --include-dir /opt/occlum/etc/template
 

demos/linux-ltp/syscalls-occlum

@@ -1004,8 +1004,8 @@ preadv03_64 preadv03_64
 
 preadv201 preadv201
 preadv201_64 preadv201_64
-preadv202 preadv202
-preadv202_64 preadv202_64
+# preadv202 preadv202
+# preadv202_64 preadv202_64
 preadv203 preadv203
 preadv203_64 preadv203_64
 
@@ -1052,15 +1052,15 @@ pwrite04_64 pwrite04_64
 
 pwritev01 pwritev01
 pwritev01_64 pwritev01_64
-# pwritev02 pwritev02
-# pwritev02_64 pwritev02_64
+pwritev02 pwritev02
+pwritev02_64 pwritev02_64
 pwritev03 pwritev03
 pwritev03_64 pwritev03_64
 
 pwritev201 pwritev201
 pwritev201_64 pwritev201_64
-pwritev202 pwritev202
-pwritev202_64 pwritev202_64
+# pwritev202 pwritev202
+# pwritev202_64 pwritev202_64
 
 quotactl01 quotactl01
 quotactl02 quotactl02
@@ -1090,7 +1090,7 @@ readlinkat01 readlinkat01
 readlinkat02 readlinkat02
 
 readv01 readv01
-readv02 readv02
+# readv02 readv02
 
 realpath01 realpath01
 
@@ -1695,7 +1695,7 @@ write02 write02
 write04 write04
 #write05 write05
 
-#writev01 writev01
+writev01 writev01
 # writev02 writev02
 writev03 writev03
 # writev05 writev05
@@ -1729,7 +1729,7 @@ copy_file_range03 copy_file_range03
 
 statx01 statx01
 statx02 statx02
-statx03 statx03
+# statx03 statx03
 statx04 statx04
 statx05 statx05
 statx06 statx06