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fuzzer web UI: render PCs with red or green depending on coverage

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This commit is contained in:
Andrew Kelley 2024-08-05 16:23:30 -07:00
parent 3d48602c99
commit 38227e9289
3 changed files with 56 additions and 9 deletions
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19
lib/fuzzer/index.html
View File

@ -53,11 +53,14 @@
}
.l {
display: inline-block;
background: white;
width: 1em;
height: 1em;
border-radius: 1em;
display: inline-block;
background: red;
width: 1em;
height: 1em;
border-radius: 1em;
}
.c {
background-color: green;
}
.tok-kw {
@ -104,6 +107,12 @@
code a {
color: #ccc;
}
.l {
background-color: red;
}
.c {
background-color: green;
}
.tok-kw {
color: #eee;
}

19
lib/fuzzer/main.js
View File

@ -172,12 +172,20 @@
}
function renderCoverage() {
if (curNavLocation == null) return;
const sourceLocationIndex = curNavLocation;
for (let i = 0; i < domSourceText.children.length; i += 1) {
const childDom = domSourceText.children[i];
if (childDom.id != null && childDom.id[0] == "l") {
childDom.classList.add("l");
childDom.classList.remove("c");
}
}
const coveredList = unwrapInt32Array(wasm_exports.sourceLocationFileCoveredList(sourceLocationIndex));
for (let i = 0; i < coveredList.length; i += 1) {
document.getElementById("l" + coveredList[i]).classList.add("c");
}
}
function resizeDomList(listDom, desiredLen, templateHtml) {
@ -203,10 +211,13 @@
domSectSource.classList.remove("hidden");
const slDom = document.getElementById("l" + sourceLocationIndex);
slDom.scrollIntoView({
behavior: "smooth",
block: "center",
// Empirically, Firefox needs this requestAnimationFrame in order for the scrollIntoView to work.
requestAnimationFrame(function() {
const slDom = document.getElementById("l" + sourceLocationIndex);
slDom.scrollIntoView({
behavior: "smooth",
block: "center",
});
});
}

27
lib/fuzzer/wasm/main.zig
View File

@ -395,3 +395,30 @@ export fn sourceLocationFileHtml(sli: SourceLocationIndex) String {
};
return String.init(string_result.items);
}
export fn sourceLocationFileCoveredList(sli_file: SourceLocationIndex) Slice(SourceLocationIndex) {
const global = struct {
var result: std.ArrayListUnmanaged(SourceLocationIndex) = .{};
fn add(i: u32, want_file: Coverage.File.Index) void {
const src_loc_index: SourceLocationIndex = @enumFromInt(i);
if (src_loc_index.ptr().file == want_file) result.appendAssumeCapacity(src_loc_index);
}
};
const want_file = sli_file.ptr().file;
global.result.clearRetainingCapacity();
const covered_bits = recent_coverage_update.items[@sizeOf(abi.CoverageUpdateHeader)..];
var sli: u32 = 0;
for (covered_bits) |byte| {
global.result.ensureUnusedCapacity(gpa, 8) catch @panic("OOM");
if ((byte & 0b0000_0001) != 0) global.add(sli + 0, want_file);
if ((byte & 0b0000_0010) != 0) global.add(sli + 1, want_file);
if ((byte & 0b0000_0100) != 0) global.add(sli + 2, want_file);
if ((byte & 0b0000_1000) != 0) global.add(sli + 3, want_file);
if ((byte & 0b0001_0000) != 0) global.add(sli + 4, want_file);
if ((byte & 0b0010_0000) != 0) global.add(sli + 5, want_file);
if ((byte & 0b0100_0000) != 0) global.add(sli + 6, want_file);
if ((byte & 0b1000_0000) != 0) global.add(sli + 7, want_file);
sli += 8;
}
return Slice(SourceLocationIndex).init(global.result.items);
}