23 #define hdr_field(pfx, idx, field) ({				\  argument
28 		_val = pfx##hdr64[idx].field;			\
29 		_size = sizeof(pfx##hdr64[0].field);		\
31 		_val = pfx##hdr32[idx].field;			\
32 		_size = sizeof(pfx##hdr32[0].field);		\
52 #define set_hdr_field(pfx, idx, field, val) ({			\  argument
57 		_size = sizeof(pfx##hdr64[0].field);		\
59 		_size = sizeof(pfx##hdr32[0].field);		\
82 		pfx##hdr64[idx].field = _val;			\
84 		pfx##hdr32[idx].field = _val;			\
87 #define ehdr_field(field) \  argument
88 	hdr_field(e, 0, field)
89 #define phdr_field(idx, field) \  argument
90 	hdr_field(p, idx, field)
91 #define shdr_field(idx, field) \  argument
92 	hdr_field(s, idx, field)
94 #define set_phdr_field(idx, field, val) \  argument
95 	set_hdr_field(p, idx, field, val)
96 #define set_shdr_field(idx, field, val) \  argument
97 	set_hdr_field(s, idx, field, val)