Module sym 

The symbols for the names in RESERVED.

Each constant is the position of its name in that list, so the two are one table written twice and a test here holds them together.

Constants

FP_OFFSET

fp_offset, the same for the saved floating point registers.

GP_OFFSET

gp_offset, how far into the saved general registers the list has read.

GR_OFFS

__gr_offs, how far back from __gr_top the list has read, in bytes and negative.

GR_TOP

__gr_top, the end of the saved general registers.

OVERFLOW_ARG_AREA

overflow_arg_area, the arguments that were passed on the stack.

REG_SAVE_AREA

reg_save_area, where the callee spilled the argument registers.

STACK

__stack, the arguments that were passed on the stack.

VA_LIST

__va_list, the tag of the record an AAPCS64 va_list is.

VA_LIST_TAG

__va_list_tag, the tag of the record a SysV x86-64 va_list is an array of one of.

VR_OFFS

__vr_offs, the same for __vr_top.

VR_TOP

__vr_top, the end of the saved vector registers.