/* $NetBSD: md.h,v 1.2 1994/11/30 06:20:43 phil Exp $ */ /* * - ns32k dependent definitions */ #if defined(CROSS_LINKER) && defined(XHOST) && (XHOST==m68k || XHOST==sparc) #define NEED_SWAP #endif #define MAX_ALIGNMENT (sizeof (long)) #define PAGSIZ __LDPGSZ #define N_SET_FLAG(ex,f) N_SETMAGIC(ex,N_GETMAGIC(ex), MID_MACHINE, \ N_GETFLAG(ex)|(f)) #define N_IS_DYNAMIC(ex) ((N_GETFLAG(ex) & EX_DYNAMIC)) #define N_BADMID(ex) \ (N_GETMID(ex) != 0 && N_GETMID(ex) != MID_MACHINE) /* * Should be handled by a.out.h ? */ #define N_ADJUST(ex) (((ex).a_entry < PAGSIZ) ? -PAGSIZ : 0) #define TEXT_START(ex) (N_TXTADDR(ex) + N_ADJUST(ex)) #define DATA_START(ex) (N_DATADDR(ex) + N_ADJUST(ex)) #define RELOC_STATICS_THROUGH_GOT_P(r) (1) #define JMPSLOT_NEEDS_RELOC (0) #define md_got_reloc(r) (0) #define md_get_rt_segment_addend(r,a) md_get_addend(r,a) /* Width of a Global Offset Table entry */ #define GOT_ENTRY_SIZE 4 typedef long got_t; typedef struct jmpslot { u_char code[6]; u_short reloc_index; #define JMPSLOT_RELOC_MASK 0xffff } jmpslot_t; #define NOP 0xa2 /* NOP opcode */ #define BSR 0x02a2 /* NOP BSR opcode */ #define BR 0xeaa2 /* NOP BR opcode */ #define BPT 0xf2 /* BPT opcode */ #define _cachectl(addr, len) ({ \ register void *_addr __asm__("r0") = addr; \ register int _len __asm__("r1") = len; \ _addr = addr; _len = len; \ __asm__ __volatile__("bispsrb 0x20; flag" \ : /* No outputs */ \ : "r" (_addr), "r" (_len) \ : "r0", "cc" \ ); }); /* * Byte swap defs for cross linking */ #if !defined(NEED_SWAP) # define md_swapin_exec_hdr(h) # define md_swapout_exec_hdr(h) # define md_swapin_symbols(s,n) # define md_swapout_symbols(s,n) # define md_swapin_zsymbols(s,n) # define md_swapout_zsymbols(s,n) # define md_swapin_reloc(r,n) # define md_swapout_reloc(r,n) # define md_swapin__dynamic(l) # define md_swapout__dynamic(l) # define md_swapin_section_dispatch_table(l) # define md_swapout_section_dispatch_table(l) # define md_swapin_so_debug(d) # define md_swapout_so_debug(d) # define md_swapin_rrs_hash(f,n) # define md_swapout_rrs_hash(f,n) # define md_swapin_sod(l,n) # define md_swapout_sod(l,n) # define md_swapout_jmpslot(j,n) # define md_swapout_got(g,n) # define md_swapin_ranlib_hdr(h,n) # define md_swapout_ranlib_hdr(h,n) #endif /* NEED_SWAP */ #ifdef CROSS_LINKER # ifdef NEED_SWAP /* Define IO byte swapping routines */ void md_swapin_exec_hdr __P((struct exec *)); void md_swapout_exec_hdr __P((struct exec *)); void md_swapin_reloc __P((struct relocation_info *, int)); void md_swapout_reloc __P((struct relocation_info *, int)); void md_swapout_jmpslot __P((jmpslot_t *, int)); # define md_swapin_symbols(s,n) swap_symbols(s,n) # define md_swapout_symbols(s,n) swap_symbols(s,n) # define md_swapin_zsymbols(s,n) swap_zsymbols(s,n) # define md_swapout_zsymbols(s,n) swap_zsymbols(s,n) # define md_swapin__dynamic(l) swap__dynamic(l) # define md_swapout__dynamic(l) swap__dynamic(l) # define md_swapin_section_dispatch_table(l) swap_section_dispatch_table(l) # define md_swapout_section_dispatch_table(l) swap_section_dispatch_table(l) # define md_swapin_so_debug(d) swap_so_debug(d) # define md_swapout_so_debug(d) swap_so_debug(d) # define md_swapin_rrs_hash(f,n) swap_rrs_hash(f,n) # define md_swapout_rrs_hash(f,n) swap_rrs_hash(f,n) # define md_swapin_sod(l,n) swapin_link_object(l,n) # define md_swapout_sod(l,n) swapout_link_object(l,n) # define md_swapout_got(g,n) swap_longs((long*)(g),n) # define md_swapin_ranlib_hdr(h,n) swap_ranlib_hdr(h,n) # define md_swapout_ranlib_hdr(h,n) swap_ranlib_hdr(h,n) # define md_swap_short(x) ( (((x) >> 8) & 0xff) | (((x) & 0xff) << 8) ) # define md_swap_long(x) ( (((x) >> 24) & 0xff ) | (((x) >> 8 ) & 0xff00 ) | \ (((x) << 8 ) & 0xff0000) | (((x) << 24) & 0xff000000) ) # else /* We need not swap, but must pay attention to alignment: */ # define md_swap_short(x) (x) # define md_swap_long(x) (x) # endif /* NEED_SWAP */ #else /* Not a cross linker: use native */ # define md_swap_short(x) (x) # define md_swap_long(x) (x) #endif /* CROSS_LINKER */