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1// RUN: %clang -g -target bpf -S -emit-llvm %s -o - | FileCheck %s2//3// When linking BPF object files via bpftool, BTF info is required for4// every symbol. BTF is generated from debug info. Ensure that debug info5// is emitted for extern functions referenced via variable initializers.6//7// CHECK: !DISubprogram(name: "fn"8extern void fn(void);9void (*pfn) (void) = &fn;10