check that the blobs are up to date

4 files changed, 28 insertions, 0 deletions

diff --git a/cortex-m-rt/.gitignore b/cortex-m-rt/.gitignore
index 9895bb1..c71d6db 100644
--- a/cortex-m-rt/.gitignore
+++ b/cortex-m-rt/.gitignore
@@ -1,4 +1,6 @@
 **/*.rs.bk
 Cargo.lock
+bin/*.after
+bin/*.before
 bin/*.o
 target/
diff --git a/cortex-m-rt/.travis.yml b/cortex-m-rt/.travis.yml
index ff66c36..caa29ef 100644
--- a/cortex-m-rt/.travis.yml
+++ b/cortex-m-rt/.travis.yml
@@ -3,6 +3,7 @@ language: rust
 matrix:
   include:
     - env: TARGET=x86_64-unknown-linux-gnu
+      rust: stable
       if: (branch = staging OR branch = trying) OR (type = pull_request AND branch = master)
 
     - env: TARGET=thumbv6m-none-eabi
diff --git a/cortex-m-rt/check-blobs.sh b/cortex-m-rt/check-blobs.sh
new file mode 100755
index 0000000..e1d0d80
--- /dev/null
+++ b/cortex-m-rt/check-blobs.sh
@@ -0,0 +1,21 @@
+#!/bin/sh
+
+# Checks that the blobs are up to date with the committed assembly files
+
+set -euxo pipefail
+
+for lib in $(ls bin/*.a); do
+    filename=$(basename $lib)
+    arm-none-eabi-objdump -Cd $lib > bin/${filename%.a}.before
+done
+
+./assemble.sh
+
+for lib in $(ls bin/*.a); do
+    filename=$(basename $lib)
+    arm-none-eabi-objdump -Cd $lib > bin/${filename%.a}.after
+done
+
+for cksum in $(ls bin/*.after); do
+    diff -u $cksum ${cksum%.after}.before
+done
diff --git a/cortex-m-rt/ci/script.sh b/cortex-m-rt/ci/script.sh
index 1fa3535..7d1cc67 100644
--- a/cortex-m-rt/ci/script.sh
+++ b/cortex-m-rt/ci/script.sh
@@ -73,6 +73,10 @@ main() {
               -C linker=rust-lld \
               -C link-arg=-Tlink.x
     fi
+
+    if [ $TARGET = x86_64-unknown-linux-gnu ]; then
+        ./check-blobs.sh
+    fi
 }
 
 main