search for: l__sancov_gen_

...gLocation) But then there is another problem.... % cat dummy.c void foo() {} % clang -O -c -gmlt -fsanitize-coverage=func,trace-pc-guard -S dummy.c -o - .LBB0_1: .loc 1 1 0 # dummy.c:1:0 pushq %rax .Lcfi0: .cfi_def_cfa_offset 16 movl $.L__sancov_gen_, %edi callq __sanitizer_cov_trace_pc_guard % clang -O -c -gmlt -fsanitize-coverage=func,trace-pc-guard -S dummy.c -mllvm -use-unknown-locations -o - .LBB0_1: .loc 1 1 0 is_stmt 0 # dummy.c:1:0 pushq %rax .loc 1 0 0 # :0:0 .Lcf...

There is already –mllvm –use-unknown-locations which ought to trigger this. Don't need my patch. --paulr From: Kostya Serebryany [mailto:kcc at google.com] Sent: Thursday, December 01, 2016 4:08 PM To: Robinson, Paul Cc: llvm-dev at lists.llvm.org Subject: Re: [llvm-dev] Libfuzzer depending on uninitialized debug info On Thu, Dec 1, 2016 at 3:37 PM, Robinson, Paul <paul.robinson at

...> > > % clang -O -c -gmlt -fsanitize-coverage=func,trace-pc-guard -S dummy.c > -o - > > .LBB0_1: > > .loc 1 1 0 # dummy.c:1:0 > > pushq %rax > > .Lcfi0: > > .cfi_def_cfa_offset 16 > > movl $.L__sancov_gen_, %edi > > callq __sanitizer_cov_trace_pc_guard > > > > % clang -O -c -gmlt -fsanitize-coverage=func,trace-pc-guard -S dummy.c > -mllvm -use-unknown-locations -o - > > > > .LBB0_1: > > .loc 1 1 0 is_stmt 0 # dummy.c:1:0 > >...

...gLocation) But then there is another problem.... % cat dummy.c void foo() {} % clang -O -c -gmlt -fsanitize-coverage=func,trace-pc-guard -S dummy.c -o - .LBB0_1: .loc 1 1 0 # dummy.c:1:0 pushq %rax .Lcfi0: .cfi_def_cfa_offset 16 movl $.L__sancov_gen_, %edi callq __sanitizer_cov_trace_pc_guard % clang -O -c -gmlt -fsanitize-coverage=func,trace-pc-guard -S dummy.c -mllvm -use-unknown-locations -o - .LBB0_1: .loc 1 1 0 is_stmt 0 # dummy.c:1:0 pushq %rax .loc 1 0 0 # :0:0 .Lcf...