Commit f56d11350313d5e45be0679bd8fab2a96892c40c | zig

author	Andrew Kelley <andrew@ziglang.org> 2024-08-04 15:45:16-07:00
committer	Andrew Kelley <andrew@ziglang.org> 2024-08-07 00:48:32-07:00
log	f56d11350313d5e45be0679bd8fab2a96892c40c
tree	5edaa66b6b03eb15e39f257f39c71233ca9f2283
parent	dec7e45f7c7e61a3778767bbc7f8e1e9a33b01fa

fuzzer web ui: render stats

3 files changed, 43 insertions(+), 1 deletions(-)

lib
- fuzzer
  - index.html
  - main.js
  - wasm
    main.zig

lib/fuzzer/index.html+7

...	@@ -125,6 +125,13 @@	...	@@ -125,6 +125,13 @@
125	</head>	125	</head>
126	<body>	126	<body>
127	<p id="status">Loading JavaScript...</p>	127	<p id="status">Loading JavaScript...</p>
		128	<div id="sectStats" class="hidden">
		129	<ul>
		130	<li>Total Runs: <span id="statTotalRuns"></span></li>
		131	<li>Unique Runs: <span id="statUniqueRuns"></span></li>
		132	<li>Lowest Stack: <span id="statLowestStack"></span></li>
		133	</ul>
		134	</div>
128	<div id="sectSource" class="hidden">	135	<div id="sectSource" class="hidden">
129	<h2>Source Code</h2>	136	<h2>Source Code</h2>
130	<pre><code id="sourceText"></code></pre>	137	<pre><code id="sourceText"></code></pre>

lib/fuzzer/main.js+19-1

...	@@ -1,7 +1,11 @@	...	@@ -1,7 +1,11 @@
1	(function() {	1	(function() {
2	const domStatus = document.getElementById("status");	2	const domStatus = document.getElementById("status");
3	const domSectSource = document.getElementById("sectSource");	3	const domSectSource = document.getElementById("sectSource");
		4	const domSectStats = document.getElementById("sectStats");
4	const domSourceText = document.getElementById("sourceText");	5	const domSourceText = document.getElementById("sourceText");
		6	const domStatTotalRuns = document.getElementById("statTotalRuns");
		7	const domStatUniqueRuns = document.getElementById("statUniqueRuns");
		8	const domStatLowestStack = document.getElementById("statLowestStack");
5		9
6	let wasm_promise = fetch("main.wasm");	10	let wasm_promise = fetch("main.wasm");
7	let sources_promise = fetch("sources.tar").then(function(response) {	11	let sources_promise = fetch("sources.tar").then(function(response) {
...	@@ -94,7 +98,7 @@	...	@@ -94,7 +98,7 @@
94	}	98	}
95		99
96	function onCoverageUpdate() {	100	function onCoverageUpdate() {
97	console.log("coverage update");	101	renderStats();
98	}	102	}
99		103
100	function render() {	104	function render() {
...	@@ -105,6 +109,20 @@	...	@@ -105,6 +109,20 @@
105	renderSource("/home/andy/dev/zig/lib/std/zig/tokenizer.zig");	109	renderSource("/home/andy/dev/zig/lib/std/zig/tokenizer.zig");
106	}	110	}
107		111
		112	function renderStats() {
		113	const totalRuns = wasm_exports.totalRuns();
		114	const uniqueRuns = wasm_exports.uniqueRuns();
		115	domStatTotalRuns.innerText = totalRuns;
		116	domStatUniqueRuns.innerText = uniqueRuns + " (" + percent(uniqueRuns, totalRuns) + "%)";
		117	domStatLowestStack.innerText = unwrapString(wasm_exports.lowestStack());
		118
		119	domSectStats.classList.remove("hidden");
		120	}
		121
		122	function percent(a, b) {
		123	return ((Number(a) / Number(b)) * 100).toFixed(1);
		124	}
		125
108	function renderSource(path) {	126	function renderSource(path) {
109	const decl_index = findFileRoot(path);	127	const decl_index = findFileRoot(path);
110	if (decl_index == null) throw new Error("file not found: " + path);	128	if (decl_index == null) throw new Error("file not found: " + path);

lib/fuzzer/wasm/main.zig+17

...	@@ -103,6 +103,23 @@ export fn decl_source_html(decl_index: Decl.Index) String {	...	@@ -103,6 +103,23 @@ export fn decl_source_html(decl_index: Decl.Index) String {
103	return String.init(string_result.items);	103	return String.init(string_result.items);
104	}	104	}
105		105
		106	export fn lowestStack() String {
		107	const header: *abi.CoverageUpdateHeader = @ptrCast(recent_coverage_update.items[0..@sizeOf(abi.CoverageUpdateHeader)]);
		108	string_result.clearRetainingCapacity();
		109	string_result.writer(gpa).print("0x{d}", .{header.lowest_stack}) catch @panic("OOM");
		110	return String.init(string_result.items);
		111	}
		112
		113	export fn totalRuns() u64 {
		114	const header: *abi.CoverageUpdateHeader = @ptrCast(recent_coverage_update.items[0..@sizeOf(abi.CoverageUpdateHeader)]);
		115	return header.n_runs;
		116	}
		117
		118	export fn uniqueRuns() u64 {
		119	const header: *abi.CoverageUpdateHeader = @ptrCast(recent_coverage_update.items[0..@sizeOf(abi.CoverageUpdateHeader)]);
		120	return header.unique_runs;
		121	}
		122
106	const String = Slice(u8);	123	const String = Slice(u8);
107		124
108	fn Slice(T: type) type {	125	fn Slice(T: type) type {