Index: lld/ELF/Writer.cpp
===================================================================
--- lld/ELF/Writer.cpp
+++ lld/ELF/Writer.cpp
@@ -1661,7 +1661,9 @@
       if (OS->Flags & SHF_EXECINSTR)
         for (InputSection *IS : getInputSections(OS))
           if (!(IS->Flags & SHF_EXECINSTR))
-            error("-execute-only does not support intermingling data and code");
+            error(
+                "cannot place " + toString(IS) + " into " + toString(OS->Name) +
+                ": -execute-only does not support intermingling data and code");
 
   // Prefer command line supplied address over other constraints.
   for (OutputSection *Sec : OutputSections) {
Index: lld/test/ELF/execute-only-mixed-data.s
===================================================================
--- lld/test/ELF/execute-only-mixed-data.s
+++ lld/test/ELF/execute-only-mixed-data.s
@@ -16,7 +16,7 @@
 // RUN: }" > %t.lds
 // RUN: ld.lld -T%t.lds %t.o -o %t -execute-only 2>&1
 
-// CHECK: -execute-only does not support intermingling data and code
+// CHECK: cannot place {{.*}}:(.rodata.foo) into .text: -execute-only does not support intermingling data and code
 
     br lr