Scripts to use with sysroot_wrapper bisecting.

Scripts to be used by the binary searching tool to interact with
the bisecting functionality in the sysroot_wrapper.

BUG=None
TEST=Tested on 3 different occasions while triaging problems
     in flash, kernel and glibc.

Change-Id: Icf55f60b0cb160ae453c9384ca77da70710c3f48
Reviewed-on: https://chrome-internal-review.googlesource.com/188665
Reviewed-by: Han Shen <shenhan@google.com>
Commit-Queue: Luis Lozano <llozano@chromium.org>
Tested-by: Luis Lozano <llozano@chromium.org>

7 files changed, 127 insertions, 0 deletions

diff --git a/binary_search_tool/sysroot_wrapper/README b/binary_search_tool/sysroot_wrapper/README
new file mode 100644
index 00000000..132c03d3
--- /dev/null
+++ b/binary_search_tool/sysroot_wrapper/README
@@ -0,0 +1,16 @@
+This is a set of scripts to use when triaging compiler problem by using
+the bisecting functionality included in the sysroot_wrapper.hardened.
+The only script that you need to create for your triaging problem is the
+test_script.sh (The ones in this directory are here only as an example).
+
+To run the binary searcher tool with these scripts, execute it like this:
+
+./binary_search_state.py --get_initial_items=./sysroot_wrapper/get_initial_items.sh --switch_to_good=./sysroot_wrapper/switch_to_good.sh --switch_to_bad=./sysroot_wrapper/switch_to_bad.sh --test_script=./sysroot_wrapper/test_script.sh --noincremental --file_args 2>&1 | tee /tmp/binary_search.log
+
+For more information on how to use the sysroot_wrapper to do object file
+triaging see:
+
+https://sites.google.com/a/google.com/chromeos-toolchain-team-home2/home/team-tools-and-scripts/bisecting-compiler-problems
+
+
+
diff --git a/binary_search_tool/sysroot_wrapper/common.sh b/binary_search_tool/sysroot_wrapper/common.sh
new file mode 100644
index 00000000..0d60b9a6
--- /dev/null
+++ b/binary_search_tool/sysroot_wrapper/common.sh
@@ -0,0 +1,3 @@
+#!/bin/bash -u
+
+bisect_dir=${BISECT_DIR:-/tmp/sysroot_bisect}
diff --git a/binary_search_tool/sysroot_wrapper/get_initial_items.sh b/binary_search_tool/sysroot_wrapper/get_initial_items.sh
new file mode 100644
index 00000000..85d6942d
--- /dev/null
+++ b/binary_search_tool/sysroot_wrapper/get_initial_items.sh
@@ -0,0 +1,5 @@
+#!/bin/bash -u
+
+source ./sysroot_wrapper/common.sh
+
+cat ${bisect_dir}/good/_LIST
diff --git a/binary_search_tool/sysroot_wrapper/glibc_test_script.sh b/binary_search_tool/sysroot_wrapper/glibc_test_script.sh
new file mode 100644
index 00000000..74e492ad
--- /dev/null
+++ b/binary_search_tool/sysroot_wrapper/glibc_test_script.sh
@@ -0,0 +1,49 @@
+#!/bin/bash -u
+
+# This is an example execution script.
+# This script changes with the problem you are trying to fix.
+# This particular script was used to triage a problem where a glibc
+# compiled with a new compiler would expose a problem in piglit.
+# Note it returns 0 only when the installation of the image succeeded
+# (ie: the machine booted after installation)
+
+source ./sysroot_wrapper/common.sh
+
+#export BISECT_STAGE=TRIAGE
+echo "BISECT_STAGE=${BISECT_STAGE}"
+
+echo "State of sets"
+wc -l ${bisect_dir}/*_SET
+
+board=x86-alex
+DUT=172.17.186.180
+
+echo "Cleaning up"
+{ sudo emerge -C cross-i686-pc-linux-gnu/glibc || exit 2; } &>> /tmp/glibc_triage.log
+
+echo "Building"
+{ sudo -E emerge cross-i686-pc-linux-gnu/glibc || exit 2; } &>> /tmp/glibc_triage.log
+
+echo "Building image"
+{ /home/llozano/trunk/src/scripts/build_image --board=${board} test || exit 2; } &>> /tmp/glibc_triage.log
+
+echo "Installing image"
+cros flash ${DUT} latest &> /tmp/tmp_cros_flash_result.log
+
+cat /tmp/tmp_cros_flash_result.log >> /tmp/cros_flash_result.log
+
+grep "Cros Flash completed successfully" /tmp/tmp_cros_flash_result.log || exit 2
+
+echo "Trying piglit"
+
+echo "export DISPLAY=:0.0; echo \$DISPLAY; /usr/local/piglit/lib/piglit/bin/glx-close-display -auto" > /tmp/repro.sh
+SSH_OPTS="-oUserKnownHostsFile=/dev/null -oStrictHostKeyChecking=no -oServerAliveInterval=10 -i /var/cache/chromeos-cache/distfiles/target/./chrome-src/src/third_party/chromite/ssh_keys/testing_rsa"
+scp ${SSH_OPTS} /tmp/repro.sh root@${DUT}:/tmp
+
+# notice the bash -l here. Otherwise the DISPLAY cannot be set
+( ssh ${SSH_OPTS} root@${DUT} -- /bin/bash -l /tmp/repro.sh ) > /tmp/result
+grep pass /tmp/result || { echo "PIGLIT FAILED"; exit 1; }
+
+echo "PIGLIT PASSED"
+
+exit 0
diff --git a/binary_search_tool/sysroot_wrapper/switch_to_bad.sh b/binary_search_tool/sysroot_wrapper/switch_to_bad.sh
new file mode 100644
index 00000000..62a908f4
--- /dev/null
+++ b/binary_search_tool/sysroot_wrapper/switch_to_bad.sh
@@ -0,0 +1,10 @@
+#!/bin/bash -u
+
+source ./sysroot_wrapper/common.sh
+
+cat $1 > ${bisect_dir}/BAD_SET
+
+grep -v -x -F -f $1 ${bisect_dir}/GOOD_SET > ${bisect_dir}/GOOD_SET.tmp
+mv ${bisect_dir}/GOOD_SET.tmp ${bisect_dir}/GOOD_SET
+
+exit 0
diff --git a/binary_search_tool/sysroot_wrapper/switch_to_good.sh b/binary_search_tool/sysroot_wrapper/switch_to_good.sh
new file mode 100644
index 00000000..3db8a9c6
--- /dev/null
+++ b/binary_search_tool/sysroot_wrapper/switch_to_good.sh
@@ -0,0 +1,10 @@
+#!/bin/bash -u
+
+source ./sysroot_wrapper/common.sh
+
+cat $1 > ${bisect_dir}/GOOD_SET
+
+grep -v -x -F -f $1 ${bisect_dir}/BAD_SET > ${bisect_dir}/BAD_SET.tmp
+mv ${bisect_dir}/BAD_SET.tmp ${bisect_dir}/BAD_SET
+
+exit 0
diff --git a/binary_search_tool/sysroot_wrapper/test_script.sh b/binary_search_tool/sysroot_wrapper/test_script.sh
new file mode 100644
index 00000000..ef6b4d40
--- /dev/null
+++ b/binary_search_tool/sysroot_wrapper/test_script.sh
@@ -0,0 +1,34 @@
+#!/bin/bash -u
+
+# This is an example execution script.
+# This script changes with the problem you are trying to fix.
+# This particular script was used to triage a problem where the kernel
+# would not boot while migrating to GCC 4.9.
+# Note it returns 0 only when the installation of the image succeeded
+# (ie: the machine booted after installation)
+
+source ./sysroot_wrapper/common.sh
+
+export BISECT_STAGE=TRIAGE
+echo "BISECT_STAGE=${BISECT_STAGE}"
+
+echo "State of sets"
+wc -l ${bisect_dir}/*_SET
+
+echo "Cleaning up"
+{ /usr/bin/sudo rm -rf /build/falco/var/cache/portage/sys-kernel && emerge-falco -C sys-kernel/chromeos-kernel-3_8-3.8.11-r96 || exit 2; } &>> /tmp/kernel_triage.log
+
+echo "Building"
+{ /usr/local/bin/emerge-falco =sys-kernel/chromeos-kernel-3_8-3.8.11-r96 || exit 2; } &>> /tmp/kernel_triage.log
+
+echo "Building image"
+{ /home/llozano/trunk/src/scripts/build_image --board=falco test || exit 2; } &>> /tmp/kernel_triage.log
+
+echo "Installing image"
+cros flash 172.17.187.150 latest &> /tmp/tmp_cros_flash_result.log
+
+cat /tmp/tmp_cros_flash_result.log >> /tmp/cros_flash_result.log
+
+grep "Cros Flash completed successfully" /tmp/tmp_cros_flash_result.log || exit 1
+
+exit 0