コード例 #1
0
ファイル: ctf_create.c プロジェクト: fgken/netbsd-src
static uchar_t *
ctf_copy_lmembers(ctf_dtdef_t *dtd, uint_t soff, uchar_t *t)
{
	ctf_dmdef_t *dmd = ctf_list_next(&dtd->dtd_u.dtu_members);
	ctf_lmember_t ctlm;

	for (; dmd != NULL; dmd = ctf_list_next(dmd)) {
		if (dmd->dmd_name) {
			ctlm.ctlm_name = soff;
			soff += strlen(dmd->dmd_name) + 1;
		} else
			ctlm.ctlm_name = 0;

		ctlm.ctlm_type = (ushort_t)dmd->dmd_type;
		ctlm.ctlm_pad = 0;
		ctlm.ctlm_offsethi = CTF_OFFSET_TO_LMEMHI(dmd->dmd_offset);
		ctlm.ctlm_offsetlo = CTF_OFFSET_TO_LMEMLO(dmd->dmd_offset);

		bcopy(&ctlm, t, sizeof (ctlm));
		t += sizeof (ctlm);
	}

	return (t);
}
コード例 #2
0
ファイル: ctf.c プロジェクト: DataIX/src
static int
write_type(void *arg1, void *arg2)
{
	tdesc_t *tp = arg1;
	ctf_buf_t *b = arg2;
	elist_t *ep;
	mlist_t *mp;
	intr_t *ip;

	size_t offset;
	uint_t encoding;
	uint_t data;
	int isroot = tp->t_flags & TDESC_F_ISROOT;
	int i;

	ctf_type_t ctt;
	ctf_array_t cta;
	ctf_member_t ctm;
	ctf_lmember_t ctlm;
	ctf_enum_t cte;
	ushort_t id;

	ctlm.ctlm_pad = 0;

	/*
	 * There shouldn't be any holes in the type list (where a hole is
	 * defined as two consecutive tdescs without consecutive ids), but
	 * check for them just in case.  If we do find holes, we need to make
	 * fake entries to fill the holes, or we won't be able to reconstruct
	 * the tree from the written data.
	 */
	if (++b->nptent < CTF_TYPE_TO_INDEX(tp->t_id)) {
		debug(2, "genctf: type hole from %d < x < %d\n",
		    b->nptent - 1, CTF_TYPE_TO_INDEX(tp->t_id));

		ctt.ctt_name = CTF_TYPE_NAME(CTF_STRTAB_0, 0);
		ctt.ctt_info = CTF_TYPE_INFO(0, 0, 0);
		while (b->nptent < CTF_TYPE_TO_INDEX(tp->t_id)) {
			write_sized_type_rec(b, &ctt, 0);
			b->nptent++;
		}
	}

	offset = strtab_insert(&b->ctb_strtab, tp->t_name);
	ctt.ctt_name = CTF_TYPE_NAME(CTF_STRTAB_0, offset);

	switch (tp->t_type) {
	case INTRINSIC:
		ip = tp->t_intr;
		if (ip->intr_type == INTR_INT)
			ctt.ctt_info = CTF_TYPE_INFO(CTF_K_INTEGER,
			    isroot, 1);
		else
			ctt.ctt_info = CTF_TYPE_INFO(CTF_K_FLOAT, isroot, 1);
		write_sized_type_rec(b, &ctt, tp->t_size);

		encoding = 0;

		if (ip->intr_type == INTR_INT) {
			if (ip->intr_signed)
				encoding |= CTF_INT_SIGNED;
			if (ip->intr_iformat == 'c')
				encoding |= CTF_INT_CHAR;
			else if (ip->intr_iformat == 'b')
				encoding |= CTF_INT_BOOL;
			else if (ip->intr_iformat == 'v')
				encoding |= CTF_INT_VARARGS;
		} else
			encoding = ip->intr_fformat;

		data = CTF_INT_DATA(encoding, ip->intr_offset, ip->intr_nbits);
		if (target_requires_swap) {
			SWAP_32(data);
		}
		ctf_buf_write(b, &data, sizeof (data));
		break;

	case POINTER:
		ctt.ctt_info = CTF_TYPE_INFO(CTF_K_POINTER, isroot, 0);
		ctt.ctt_type = tp->t_tdesc->t_id;
		write_unsized_type_rec(b, &ctt);
		break;

	case ARRAY:
		ctt.ctt_info = CTF_TYPE_INFO(CTF_K_ARRAY, isroot, 1);
		write_sized_type_rec(b, &ctt, tp->t_size);

		cta.cta_contents = tp->t_ardef->ad_contents->t_id;
		cta.cta_index = tp->t_ardef->ad_idxtype->t_id;
		cta.cta_nelems = tp->t_ardef->ad_nelems;
		if (target_requires_swap) {
			SWAP_16(cta.cta_contents);
			SWAP_16(cta.cta_index);
			SWAP_32(cta.cta_nelems);
		}
		ctf_buf_write(b, &cta, sizeof (cta));
		break;

	case STRUCT:
	case UNION:
		for (i = 0, mp = tp->t_members; mp != NULL; mp = mp->ml_next)
			i++; /* count up struct or union members */

		if (i > CTF_MAX_VLEN) {
			terminate("sou %s has too many members: %d > %d\n",
			    tdesc_name(tp), i, CTF_MAX_VLEN);
		}

		if (tp->t_type == STRUCT)
			ctt.ctt_info = CTF_TYPE_INFO(CTF_K_STRUCT, isroot, i);
		else
			ctt.ctt_info = CTF_TYPE_INFO(CTF_K_UNION, isroot, i);

		write_sized_type_rec(b, &ctt, tp->t_size);

		if (tp->t_size < CTF_LSTRUCT_THRESH) {
			for (mp = tp->t_members; mp != NULL; mp = mp->ml_next) {
				offset = strtab_insert(&b->ctb_strtab,
				    mp->ml_name);

				ctm.ctm_name = CTF_TYPE_NAME(CTF_STRTAB_0,
				    offset);
				ctm.ctm_type = mp->ml_type->t_id;
				ctm.ctm_offset = mp->ml_offset;
				if (target_requires_swap) {
					SWAP_32(ctm.ctm_name);
					SWAP_16(ctm.ctm_type);
					SWAP_16(ctm.ctm_offset);
				}
				ctf_buf_write(b, &ctm, sizeof (ctm));
			}
		} else {
			for (mp = tp->t_members; mp != NULL; mp = mp->ml_next) {
				offset = strtab_insert(&b->ctb_strtab,
				    mp->ml_name);

				ctlm.ctlm_name = CTF_TYPE_NAME(CTF_STRTAB_0,
				    offset);
				ctlm.ctlm_type = mp->ml_type->t_id;
				ctlm.ctlm_offsethi =
				    CTF_OFFSET_TO_LMEMHI(mp->ml_offset);
				ctlm.ctlm_offsetlo =
				    CTF_OFFSET_TO_LMEMLO(mp->ml_offset);

				if (target_requires_swap) {
					SWAP_32(ctlm.ctlm_name);
					SWAP_16(ctlm.ctlm_type);
					SWAP_32(ctlm.ctlm_offsethi);
					SWAP_32(ctlm.ctlm_offsetlo);
				}

				ctf_buf_write(b, &ctlm, sizeof (ctlm));
			}
		}
		break;

	case ENUM:
		for (i = 0, ep = tp->t_emem; ep != NULL; ep = ep->el_next)
			i++; /* count up enum members */

		if (i > CTF_MAX_VLEN) {
			warning("enum %s has too many values: %d > %d\n",
			    tdesc_name(tp), i, CTF_MAX_VLEN);
			i = CTF_MAX_VLEN;
		}

		ctt.ctt_info = CTF_TYPE_INFO(CTF_K_ENUM, isroot, i);
		write_sized_type_rec(b, &ctt, tp->t_size);

		for (ep = tp->t_emem; ep != NULL && i > 0; ep = ep->el_next) {
			offset = strtab_insert(&b->ctb_strtab, ep->el_name);
			cte.cte_name = CTF_TYPE_NAME(CTF_STRTAB_0, offset);
			cte.cte_value = ep->el_number;

			if (target_requires_swap) {
				SWAP_32(cte.cte_name);
				SWAP_32(cte.cte_value);
			}

			ctf_buf_write(b, &cte, sizeof (cte));
			i--;
		}
		break;

	case FORWARD:
		ctt.ctt_info = CTF_TYPE_INFO(CTF_K_FORWARD, isroot, 0);
		ctt.ctt_type = 0;
		write_unsized_type_rec(b, &ctt);
		break;

	case TYPEDEF:
		ctt.ctt_info = CTF_TYPE_INFO(CTF_K_TYPEDEF, isroot, 0);
		ctt.ctt_type = tp->t_tdesc->t_id;
		write_unsized_type_rec(b, &ctt);
		break;

	case VOLATILE:
		ctt.ctt_info = CTF_TYPE_INFO(CTF_K_VOLATILE, isroot, 0);
		ctt.ctt_type = tp->t_tdesc->t_id;
		write_unsized_type_rec(b, &ctt);
		break;

	case CONST:
		ctt.ctt_info = CTF_TYPE_INFO(CTF_K_CONST, isroot, 0);
		ctt.ctt_type = tp->t_tdesc->t_id;
		write_unsized_type_rec(b, &ctt);
		break;

	case FUNCTION:
		i = tp->t_fndef->fn_nargs + tp->t_fndef->fn_vargs;

		if (i > CTF_MAX_VLEN) {
			terminate("function %s has too many args: %d > %d\n",
			    tdesc_name(tp), i, CTF_MAX_VLEN);
		}

		ctt.ctt_info = CTF_TYPE_INFO(CTF_K_FUNCTION, isroot, i);
		ctt.ctt_type = tp->t_fndef->fn_ret->t_id;
		write_unsized_type_rec(b, &ctt);

		for (i = 0; i < (int) tp->t_fndef->fn_nargs; i++) {
			id = tp->t_fndef->fn_args[i]->t_id;

			if (target_requires_swap) {
				SWAP_16(id);
			}

			ctf_buf_write(b, &id, sizeof (id));
		}

		if (tp->t_fndef->fn_vargs) {
			id = 0;
			ctf_buf_write(b, &id, sizeof (id));
			i++;
		}

		if (i & 1) {
			id = 0;
			ctf_buf_write(b, &id, sizeof (id));
		}
		break;

	case RESTRICT:
		ctt.ctt_info = CTF_TYPE_INFO(CTF_K_RESTRICT, isroot, 0);
		ctt.ctt_type = tp->t_tdesc->t_id;
		write_unsized_type_rec(b, &ctt);
		break;

	default:
		warning("Can't write unknown type %d\n", tp->t_type);
	}

	debug(3, "Wrote type %d %s\n", tp->t_id, tdesc_name(tp));

	return (1);
}