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

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

lib/fuzzer/index.html+7

...	...	@@ -125,6 +125,13 @@
125	125	</head>
126	126	<body>
127	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	135	<div id="sectSource" class="hidden">
129	136	<h2>Source Code</h2>
130	137	<pre><code id="sourceText"></code></pre>

lib/fuzzer/main.js+19-1

...	...	@@ -1,7 +1,11 @@
1	1	(function() {
2	2	const domStatus = document.getElementById("status");
3	3	const domSectSource = document.getElementById("sectSource");
	4	const domSectStats = document.getElementById("sectStats");
4	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	10	let wasm_promise = fetch("main.wasm");
7	11	let sources_promise = fetch("sources.tar").then(function(response) {
...	...	@@ -94,7 +98,7 @@
94	98	}
95	99
96	100	function onCoverageUpdate() {
97		console.log("coverage update");
	101	renderStats();
98	102	}
99	103
100	104	function render() {
...	...	@@ -105,6 +109,20 @@
105	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	126	function renderSource(path) {
109	127	const decl_index = findFileRoot(path);
110	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	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	123	const String = Slice(u8);
107	124
108	125	fn Slice(T: type) type {