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/* $OpenBSD: md.h,v 1.5 2002/07/15 21:05:57 marc Exp $ */
/* $NetBSD: md.h,v 1.3 1996/02/22 00:20:06 pk Exp $ */
/*
* - ns32k dependent definitions
*/
#if defined(CROSS_LINKER)
#include <sys/endian.h>
#if BYTE_ORDER != LITTLE_ENDIAN
#define NEED_SWAP
#endif
#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 RELOC_INIT_SEGMENT_RELOC(r) ((r)->r_disp = 2)
#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 */
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