Fix sidecar_mockgen with alpine/musl

Signed-off-by: Bob Weinand <bob.weinand@datadoghq.com>
DataDog · Apr 27, 2023 · 2ec7a35 · 2ec7a35
1 parent dbe217a
commit 2ec7a35
Showing 1 changed file with 8 additions and 1 deletion.
diff --git a/tools/sidecar_mockgen/src/lib.rs b/tools/sidecar_mockgen/src/lib.rs
@@ -49,7 +49,14 @@ pub fn generate_mock_symbols(binary: &Path, objects: &[&Path]) -> Result<String,
                 if missing_symbols.contains(name) {
                     _ = match sym.kind() {
                         SymbolKind::Text => writeln!(generated, "void {}() {{}}", name),
-                        SymbolKind::Data => writeln!(generated, "char {}[{}];", name, sym.size()),
+                        // Ignore symbols of size 0, like _GLOBAL_OFFSET_TABLE_ on alpine
+                        SymbolKind::Data => {
+                            if sym.size() > 0 {
+                                writeln!(generated, "char {}[{}];", name, sym.size())
+                            } else {
+                                Ok(())
+                            }
+                        },
                         SymbolKind::Tls => {
                             writeln!(generated, "__thread char {}[{}];", name, sym.size())
                         }