HelenOS sources

__CONTEXT_OFFSET_X25   40 uspace/lib/c/arch/arm64/include/libarch/fibril_context.h #define __CONTEXT_OFFSET_X25    0x40
__CONTEXT_OFFSET_X25   58 uspace/lib/c/arch/riscv64/include/libarch/fibril_context.h #define __CONTEXT_OFFSET_X25  0xd0