[M] Change in flashrom[master]: tests: Detect llvm coverage file io and unmock io functions

[Evan Benn (Code Review)]

Attention is currently required from: Anastasia Klimchuk.

Evan Benn has posted comments on this change. ( https://review.coreboot.org/c/flashrom/+/69267 )

Change subject: tests: Detect llvm coverage file io and unmock io functions
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Patch Set 9:

(3 comments)

Commit Message:

https://review.coreboot.org/c/flashrom/+/69267/comment/7568c980_4b8aeb95 
PS6, Line 9: atexit
> missing space: atexit -> at exit

Done

File tests/tests.c:

https://review.coreboot.org/c/flashrom/+/69267/comment/b66f134c_204efe9a 
PS3, Line 140: 	if (!check_suffix(pathname, ".gcda") || !check_suffix(pathname, ".profraw"))
> strangely llvm uses fopen in my ubuntu, but uses open in chromeos. […]

Done

File tests/tests.c:

https://review.coreboot.org/c/flashrom/+/69267/comment/c08f7d15_0881e5b6 
PS6, Line 234: 	// We detect code coverage writing the log files and defer to real io functions.
             : 	if (!check_suffix(pathname, ".gcda") || !check_suffix(pathname, ".profraw"))
             : 		io_mock_register(&real_io_mock);
> Is this code needed for __wrap_fopen64?

Done