[illumos-gate merge]

commit 1cd083931cfd3fb8617c1178f62bce417cfa6af2
    13780 Add support for rust v0 mangling format
commit 4fe48c6ec9f06cbcce19c4cf97f662b64efde582
    13798 loader: Update the EFI timer to be called once a second
commit 9e3493cb8a0cfe96c9aef9b7da42c6c9b5c24b43
    13374 Port L2ARC Improvements from OpenZFS

1 files changed, 87 insertions, 0 deletions

diff --git a/usr/src/lib/libdemangle/common/rust.h b/usr/src/lib/libdemangle/common/rust.h
new file mode 100644
index 0000000000..fbe609ab9d
--- /dev/null
+++ b/usr/src/lib/libdemangle/common/rust.h
@@ -0,0 +1,87 @@
+/*
+ * This file and its contents are supplied under the terms of the
+ * Common Development and Distribution License ("CDDL"), version 1.0.
+ * You may only use this file in accordance with the terms of version
+ * 1.0 of the CDDL.
+ *
+ * A full copy of the text of the CDDL should have accompanied this
+ * source.  A copy of the CDDL is also available via the Internet at
+ * http://www.illumos.org/license/CDDL.
+ */
+
+/*
+ * Copyright 2019 Joyent, Inc.
+ * Copyright 2021 Jason King
+ */
+
+#ifndef _RUST_H
+#define	_RUST_H
+
+#include <errno.h>
+#include <sys/types.h>
+#include "demangle-sys.h"
+#include "demangle_int.h"
+#include "strview.h"
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+typedef enum rustenc_version {
+	RUSTENC_LEGACY = -1,
+	RUSTENC_V0 = 0
+} rustenc_version_t;
+
+typedef struct rust_state {
+	const char	*rs_str; /* The original string */
+	custr_t		*rs_demangled;
+	sysdem_ops_t	*rs_ops;
+	custr_alloc_t	rs_cualloc;
+	strview_t	rs_orig; /* strview of original string, sans prefix */
+	int		rs_error;
+	rustenc_version_t rs_encver;
+	uint64_t	rs_lt_depth;
+	boolean_t	rs_skip;
+	boolean_t	rs_args_stay_open;
+	boolean_t	rs_args_is_open;
+	boolean_t	rs_verbose;
+	boolean_t	rs_show_const_type;
+	boolean_t	rs_isutf8;
+} rust_state_t;
+#define	HAS_ERROR(_st) ((_st)->rs_error != 0)
+#define	SET_ERROR(_st) ((_st)->rs_error = errno)
+
+/*
+ * In certain circumstances, we need to parse an item, but not emit any
+ * output. These macros assist in that. To use:
+ *
+ * rust_state_t *st;
+ * boolean_t saved_state;
+ * ...
+ * SKIP_BEGIN(st, saved_state);
+ * ... stuff to no emit
+ * SKIP_END(st, saved_state);
+ */
+#define	SKIP_BEGIN(_st, _save)		\
+	(_save) = (_st)->rs_skip,	\
+	(_st)->rs_skip = B_TRUE
+#define	SKIP_END(_st, _n) (_st)->rs_skip = (_n)
+
+boolean_t rust_appendc(rust_state_t *, char);
+boolean_t rust_append(rust_state_t *, const char *);
+boolean_t rust_append_printf(rust_state_t *, const char *, ...) __PRINTFLIKE(2);
+boolean_t rust_append_sv(rust_state_t *restrict, uint64_t, strview_t *restrict);
+boolean_t rust_append_utf8_c(rust_state_t *, uint32_t);
+boolean_t rust_parse_base10(rust_state_t *restrict, strview_t *restrict,
+    uint64_t *restrict);
+boolean_t rust_demangle_legacy(rust_state_t *restrict, strview_t *restrict);
+boolean_t rust_demangle_v0(rust_state_t *restrict, strview_t *restrict);
+
+boolean_t rustv0_puny_decode(rust_state_t *restrict, strview_t *restrict,
+    boolean_t);
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* _RUST_H */