Add cargo-build-bpf

sdk/bpf/scripts/dump.sh

@@ -0,0 +1,48 @@
+#!/usr/bin/env bash
+
+bpf_sdk=$(cd "$(dirname "$0")/.." && pwd)
+# shellcheck source=sdk/bpf/env.sh
+source "$bpf_sdk"/env.sh
+
+so=$1
+dump=$2
+if [[ -z $so ]] || [[ -z $dump ]]; then
+  echo "Usage: $0 bpf-program.so dump.txt"
+  exit 1
+fi
+
+if [[ ! -r $so ]]; then
+  echo "Error: File not found or readable: $so"
+  exit 1
+fi
+
+if ! command -v rustfilt > /dev/null; then
+  echo "Error: rustfilt not found.  It can be installed by running: cargo install rustfilt"
+  exit 1
+fi
+if ! command -v readelf > /dev/null; then
+  if [[ $(uname) = Darwin ]]; then
+      echo "Error: readelf not found.  It can be installed by running: brew install binutils"
+  else
+      echo "Error: readelf not found."
+  fi
+  exit 1
+fi
+
+dump_mangled=$dump.mangled
+
+(
+  set -ex
+  ls -la "$so" > "$dump_mangled"
+  readelf -aW "$so" >>"$dump_mangled"
+  "$OBJDUMP" -print-imm-hex --source --disassemble "$so" >> "$dump_mangled"
+  sed s/://g < "$dump_mangled" | rustfilt > "$dump"
+)
+rm -f "$dump_mangled"
+
+if [[ ! -f "$dump" ]]; then
+  echo "Error: Failed to create $dump"
+  exit 1
+fi
+
+echo "Wrote $dump"

sdk/bpf/scripts/install.sh

@@ -84,19 +84,24 @@ clone() {
 }
 
 # Install xargo
-(
-  set -ex
-  # shellcheck disable=SC2154
-  if [[ -n $rust_stable ]]; then
-    cargo +"$rust_stable" install xargo
-  else
-    cargo install xargo
+version=0.3.22
+if [[ ! -e xargo-$version.md ]] || [[ ! -x bin/xargo ]]; then
+  (
+    args=()
+    # shellcheck disable=SC2154
+    if [[ -n $rust_stable ]]; then
+      args+=(+"$rust_stable")
+    fi
+    args+=(install xargo --version "$version" --root .)
+    set -ex
+    cargo "${args[@]}"
+    ./bin/xargo --version >xargo-$version.md 2>&1
+  )
+  exitcode=$?
+  if [[ $exitcode -ne 0 ]]; then
+    rm -rf xargo-$version.md
+    exit 1
   fi
-  xargo --version >xargo.md 2>&1
-)
-# shellcheck disable=SC2181
-if [[ $? -ne 0 ]]; then
-  exit 1
 fi
 
 # Install Criterion

sdk/bpf/scripts/objcopy.sh

@@ -0,0 +1,6 @@
+#!/usr/bin/env bash
+
+bpf_sdk=$(cd "$(dirname "$0")/.." && pwd)
+# shellcheck source=sdk/bpf/env.sh
+source "$bpf_sdk"/env.sh
+exec "$bpf_sdk"/dependencies/llvm-native/bin/llvm-objcopy "$@"

sdk/bpf/scripts/strip.sh

@@ -0,0 +1,17 @@
+#!/usr/bin/env bash
+
+so=$1
+if [[ ! -r $so ]]; then
+  echo "Error: file not found: $so"
+  exit 1
+fi
+so_stripped=$2
+if [[ -z $so_stripped ]]; then
+  echo "Usage: $0 unstripped.so stripped.so"
+  exit 1
+fi
+
+bpf_sdk=$(cd "$(dirname "$0")/.." && pwd)
+# shellcheck source=sdk/bpf/env.sh
+source "$bpf_sdk"/env.sh
+"$bpf_sdk"/dependencies/llvm-native/bin/llvm-objcopy --strip-all "$so" "$so_stripped"