cargo-bpf debug info.

cargo-bpf/src/build.rs

@@ -108,7 +108,7 @@ fn build_probe(cargo: &Path, package: &Path, target_dir: &Path, probe: &str) ->
         .arg("--cfg")
         .arg(version)
         .args(
-            "--emit=llvm-bc -C panic=abort -C lto -C link-arg=-nostartfiles -C opt-level=3"
+            "--emit=llvm-bc -C panic=abort -C lto -C link-arg=-nostartfiles -C opt-level=3 -C debuginfo=2"
                 .split(' '),
         )
         .arg("-o")

cargo-bpf/src/llvm.rs

@@ -1,7 +1,6 @@
 use anyhow::{anyhow, Result};
 use llvm_sys::bit_writer::LLVMWriteBitcodeToFile;
 use llvm_sys::core::*;
-use llvm_sys::debuginfo::LLVMStripModuleDebugInfo;
 use llvm_sys::ir_reader::LLVMParseIRInContext;
 use llvm_sys::prelude::*;
 use llvm_sys::target::*;
@@ -131,10 +130,6 @@ pub unsafe fn process_ir(context: LLVMContextRef, module: LLVMModuleRef) -> Resu
         func = LLVMGetNextFunction(func);
     }
 
-    // the debug info generated by rustc seems to trigger a segfault in the
-    // BTF code in llvm, so strip it until that is fixed
-    LLVMStripModuleDebugInfo(module);
-
     Ok(())
 }