HelenOS sources

EI_VERSION         92 boot/generic/src/kernel.c 	    header->e_ident[EI_VERSION] != EV_CURRENT ||
EI_VERSION         75 kernel/generic/src/lib/elf.c 	    (header->e_ident[EI_VERSION] != EV_CURRENT) ||
EI_VERSION        154 uspace/app/taskdump/elf_core.c 	elf_hdr.e_ident[EI_VERSION] = EV_CURRENT;
EI_VERSION         55 uspace/lib/c/generic/elf/elf.c 	    header->e_ident[EI_VERSION] != EV_CURRENT ||
EI_VERSION        157 uspace/lib/c/generic/elf/elf_mod.c 	    header->e_ident[EI_VERSION] != EV_CURRENT ||
HelenOS homepage, sources at GitHub