HelenOS sources
cpu_halt 116 kernel/arch/arm32/include/arch/asm.h extern void cpu_halt(void) __attribute__((noreturn));
cpu_halt 468 kernel/arch/ia64/include/arch/asm.h extern void cpu_halt(void) __attribute__((noreturn));
cpu_halt 81 kernel/arch/mips32/include/arch/asm.h extern void cpu_halt(void) __attribute__((noreturn));
cpu_halt 210 kernel/arch/ppc32/include/arch/asm.h extern void cpu_halt(void) __attribute__((noreturn));
cpu_halt 138 kernel/arch/riscv64/include/arch/asm.h extern void cpu_halt(void) __attribute__((noreturn));
cpu_halt 529 kernel/arch/sparc64/include/arch/asm.h extern void cpu_halt(void) __attribute__((noreturn));
cpu_halt 114 kernel/generic/src/console/chardev.c cpu_halt();
cpu_halt 79 kernel/generic/src/lib/halt.c cpu_halt();
HelenOS homepage, sources at GitHub