emaste 2012ddb51e llvm: use AT_EXECPATH from ELF auxiliary vectors for getExecutablePath
/proc/curproc/file and the KERN_PROC_PATHNAME sysctl may not return the
desired path if there are multiple hardlinks to the file.

PR:		241932
Tested by:	ler
Sponsored by:	The FreeBSD Foundation
2019-11-13 21:02:18 +00:00
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