C++ (Cpp) do_xlat Examples

Example #1

File: addrxlat.c Project: jeffmahoney/libkdumpfile

int
main(int argc, char **argv)
{
	unsigned long long vaddr;
	char *endp;
	addrxlat_ctx *ctx;
	addrxlat_pgt_t *pgt;
	int opt;
	addrxlat_status status;
	unsigned long refcnt;
	int rc;

	pgt = NULL;
	ctx = NULL;

	pgt = addrxlat_pgt_new();
	if (!pgt) {
		perror("Cannot initialize page table translation");
		rc = TEST_ERR;
		goto out;
	}

	while ((opt = getopt_long(argc, argv, "he:f:l:pr:",
				  opts, NULL)) != -1) {
		switch (opt) {
		case 'f':
			rc = set_paging_form(optarg);
			if (rc != TEST_OK)
				return rc;
			break;

		case 'r':
			rc = set_root(optarg, pgt);
			if (rc != TEST_OK)
				return rc;
			break;

		case 'e':
			rc = add_entry(optarg);
			if (rc != TEST_OK)
				return rc;
			break;

		case 'l':
			rc = set_linear(optarg);
			if (rc != TEST_OK)
				return rc;
			break;

		case 'p':
			xlatdef.method = ADDRXLAT_PGT;
			xlatdef.pgt = pgt;
			break;

		case 'h':
		default:
			usage(argv[0]);
			rc = (opt == 'h') ? TEST_OK : TEST_ERR;
			goto out;
		}
	}

	if (argc - optind != 1 || !*argv[optind]) {
		fprintf(stderr, "Usage: %s <addr>\n", argv[0]);
		return TEST_ERR;
	}

	vaddr = strtoull(argv[optind], &endp, 0);
	if (*endp) {
		fprintf(stderr, "Invalid address: %s\n", argv[optind]);
		return TEST_ERR;
	}

	ctx = addrxlat_new();
	if (!ctx) {
		perror("Cannot initialize address translation context");
		rc = TEST_ERR;
		goto out;
	}

	status = addrxlat_pgt_set_form(pgt, &paging_form);
	if (status != addrxlat_ok) {
		fprintf(stderr, "Cannot set paging form\n");
		rc = TEST_ERR;
		goto out;
	}

	addrxlat_cb_read32(ctx, read32);
	addrxlat_cb_read64(ctx, read64);

	rc = do_xlat(ctx, vaddr);

 out:
	if (pgt && (refcnt = addrxlat_pgt_decref(pgt)) != 0)
		fprintf(stderr, "WARNING: Leaked %lu pgt references\n",
			refcnt);

	if (ctx && (refcnt = addrxlat_decref(ctx)) != 0)
		fprintf(stderr, "WARNING: Leaked %lu addrxlat references\n",
			refcnt);

	return rc;
}

Example #2

File: addrxlat.c Project: ptesarik/libkdumpfile

int
main(int argc, char **argv)
{
	unsigned long long vaddr;
	char *endp;
	addrxlat_ctx_t *ctx;
	addrxlat_cb_t cb = {
		.read32 = read32,
		.read64 = read64,
		.read_caps = (ADDRXLAT_CAPS(ADDRXLAT_MACHPHYSADDR) |
			      ADDRXLAT_CAPS(ADDRXLAT_KVADDR))
	};
	addrxlat_meth_t pgt, linear, lookup, memarr, *meth;
	int opt;
	unsigned long refcnt;
	int rc;

	ctx = NULL;
	meth = NULL;

	pgt.kind = ADDRXLAT_PGT;
	pgt.target_as = ADDRXLAT_MACHPHYSADDR;
	pgt.param.pgt.root.as = ADDRXLAT_NOADDR;
	pgt.param.pgt.root.addr = 0;

	linear.kind = ADDRXLAT_LINEAR;
	linear.target_as = ADDRXLAT_MACHPHYSADDR;
	linear.param.linear.off = 0;

	lookup.kind = ADDRXLAT_LOOKUP;
	lookup.target_as = ADDRXLAT_MACHPHYSADDR;
	lookup.param.lookup.endoff = 0;

	memarr.kind = ADDRXLAT_MEMARR;
	memarr.target_as = ADDRXLAT_MACHPHYSADDR;
	memarr.param.memarr.base.as = ADDRXLAT_NOADDR;

	while ((opt = getopt_long(argc, argv, "he:f:l:m:pr:t:",
				  opts, NULL)) != -1) {
		switch (opt) {
		case 'f':
			meth = &pgt;
			rc = set_paging_form(&meth->param.pgt.pf, optarg);
			if (rc != TEST_OK)
				return rc;
			break;

		case 'r':
			meth = &pgt;
			rc = set_root(&meth->param.pgt.root, optarg);
			if (rc != TEST_OK)
				return rc;
			break;

		case 'e':
			rc = add_entry(optarg);
			if (rc != TEST_OK)
				return rc;
			break;

		case 'l':
			meth = &linear;
			rc = set_linear(&meth->param.linear.off, optarg);
			if (rc != TEST_OK)
				return rc;
			break;

		case 'm':
			meth = &memarr;
			rc = set_memarr(&meth->param.memarr, optarg);
			if (rc != TEST_OK)
				return rc;
			break;

		case 'p':
			meth = &pgt;
			break;

		case 't':
			meth = &lookup;
			rc = set_lookup(&meth->param.lookup.endoff, optarg);
			if (rc != TEST_OK)
				return rc;
			break;

		case 'h':
		default:
			usage(argv[0]);
			rc = (opt == 'h') ? TEST_OK : TEST_ERR;
			goto out;
		}
	}

	if (meth == NULL) {
		fputs("No translation method specified\n", stderr);
		return TEST_ERR;
	}

	if (argc - optind != 1 || !*argv[optind]) {
		fprintf(stderr, "Usage: %s <addr>\n", argv[0]);
		return TEST_ERR;
	}

	vaddr = strtoull(argv[optind], &endp, 0);
	if (*endp) {
		fprintf(stderr, "Invalid address: %s\n", argv[optind]);
		return TEST_ERR;
	}

	lookup.param.lookup.nelem = nentries;
	lookup.param.lookup.tbl = entries;

	ctx = addrxlat_ctx_new();
	if (!ctx) {
		perror("Cannot initialize address translation context");
		rc = TEST_ERR;
		goto out;
	}
	cb.data = ctx;
	addrxlat_ctx_set_cb(ctx, &cb);

	rc = do_xlat(ctx, meth, vaddr);

 out:
	if (ctx && (refcnt = addrxlat_ctx_decref(ctx)) != 0)
		fprintf(stderr, "WARNING: Leaked %lu addrxlat references\n",
			refcnt);

	return rc;
}