In dwarf assembly test-case ada-linkage-name.exp, we have:
...
standard_testfile .c -debug.S
...
cu {} {
DW_TAG_compile_unit {
{DW_AT_name ada-linkage-name.c}
...
Use $srcfile instead of ada-linkage-name.c.
In dwarf assembly test-case atomic-type.exp, we have:
...
standard_testfile .c -dw.S
...
cu {} {
DW_TAG_compile_unit {
{DW_AT_name atomic-type-dw.c}
...
The dwarf generated into atomic-type-dw.S is meant to represent the code in
atomic-type.c, not atomic-type-dw.c, so use $srcfile instead of
atomic-type-dw.c.