{ "type": "excalidraw", "version": 2, "source": "https://excalidraw.com", "elements": [ { "id": "r869758304", "type": "rectangle", "x": 40, "y": 60, "width": 200, "height": 64, "angle": 0, "strokeColor": "#111111", "backgroundColor": "#ffffff", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": { "type": 3 }, "seed": 829925480, "versionNonce": 530182772, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false }, { "id": "t646960929", "type": "text", "x": 50, "y": 68, "width": 207.9, "height": 17.5, "angle": 0, "strokeColor": "#111111", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 256864904, "versionNonce": 1642826287, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "process_order(const Order*)", "fontSize": 14, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "process_order(const Order*)", "lineHeight": 1.25, "baseline": 14 }, { "id": "t29074423", "type": "text", "x": 50, "y": 88, "width": 84.7, "height": 13.75, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 1211635483, "versionNonce": 315845675, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "arg0 = pointer", "fontSize": 11, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "arg0 = pointer", "lineHeight": 1.25, "baseline": 11 }, { "id": "r298318143", "type": "rectangle", "x": 40, "y": 185, "width": 200, "height": 70, "angle": 0, "strokeColor": "#e8870c", "backgroundColor": "#fff8ef", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": { "type": 3 }, "seed": 982859670, "versionNonce": 687259197, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false }, { "id": "t561747237", "type": "text", "x": 50, "y": 193, "width": 84.7, "height": 17.5, "angle": 0, "strokeColor": "#111111", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 453841331, "versionNonce": 797112703, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "eBPF uprobe", "fontSize": 14, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "eBPF uprobe", "lineHeight": 1.25, "baseline": 14 }, { "id": "t873788493", "type": "text", "x": 50, "y": 213, "width": 127.05000000000001, "height": 13.75, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 1428646130, "versionNonce": 1694310357, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "arg(0) \u2192 *const Order", "fontSize": 11, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "arg(0) \u2192 *const Order", "lineHeight": 1.25, "baseline": 11 }, { "id": "r1097090470", "type": "rectangle", "x": 320, "y": 185, "width": 240, "height": 70, "angle": 0, "strokeColor": "#111111", "backgroundColor": "#ffffff", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": { "type": 3 }, "seed": 99011694, "versionNonce": 244451415, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false }, { "id": "t896221951", "type": "text", "x": 330, "y": 193, "width": 177.10000000000002, "height": 17.5, "angle": 0, "strokeColor": "#111111", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 1783878029, "versionNonce": 246029558, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "#[repr(C)] Order mirror", "fontSize": 14, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "#[repr(C)] Order mirror", "lineHeight": 1.25, "baseline": 14 }, { "id": "t1514395233", "type": "text", "x": 330, "y": 213, "width": 205.70000000000002, "height": 13.75, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 1322072616, "versionNonce": 1077915136, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "id \u00b7 amount \u00b7 status (must match!)", "fontSize": 11, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "id \u00b7 amount \u00b7 status (must match!)", "lineHeight": 1.25, "baseline": 11 }, { "id": "r110915536", "type": "rectangle", "x": 320, "y": 60, "width": 240, "height": 64, "angle": 0, "strokeColor": "#2f6db5", "backgroundColor": "#eef4fb", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": { "type": 3 }, "seed": 1641885850, "versionNonce": 152804590, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false }, { "id": "t1343122736", "type": "text", "x": 330, "y": 68, "width": 177.10000000000002, "height": 17.5, "angle": 0, "strokeColor": "#111111", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 1415024666, "versionNonce": 1684775422, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "Order in process memory", "fontSize": 14, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "Order in process memory", "lineHeight": 1.25, "baseline": 14 }, { "id": "t1332750303", "type": "text", "x": 330, "y": 88, "width": 151.25, "height": 13.75, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 1247825170, "versionNonce": 829023137, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "id@0 amount@8 status@16", "fontSize": 11, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "id@0 amount@8 status@16", "lineHeight": 1.25, "baseline": 11 }, { "id": "r706269650", "type": "rectangle", "x": 620, "y": 60, "width": 230, "height": 70, "angle": 0, "strokeColor": "#999999", "backgroundColor": "#ffffff", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": { "type": 3 }, "seed": 1223750105, "versionNonce": 1746654666, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false }, { "id": "t1850078759", "type": "text", "x": 630, "y": 68, "width": 177.10000000000002, "height": 17.5, "angle": 0, "strokeColor": "#111111", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 1538332449, "versionNonce": 455727267, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "BTF (pahole -J / .note)", "fontSize": 14, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "BTF (pahole -J / .note)", "lineHeight": 1.25, "baseline": 14 }, { "id": "t902748623", "type": "text", "x": 630, "y": 88, "width": 157.3, "height": 13.75, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 1675265310, "versionNonce": 466654823, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "recovers the field offsets", "fontSize": 11, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "recovers the field offsets", "lineHeight": 1.25, "baseline": 11 }, { "id": "a1504210035", "type": "arrow", "x": 140, "y": 124, "width": 0, "height": 61, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": { "type": 2 }, "seed": 1862279113, "versionNonce": 1971298955, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "points": [ [ 0, 0 ], [ 0, 61 ] ], "lastCommittedPoint": null, "startBinding": null, "endBinding": null, "startArrowhead": null, "endArrowhead": "arrow" }, { "id": "t996791425", "type": "text", "x": 140.0, "y": 140.5, "width": 40, "height": 13.75, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 363328964, "versionNonce": 337233006, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "ptr", "fontSize": 11, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "ptr", "lineHeight": 1.25, "baseline": 11 }, { "id": "a1369836600", "type": "arrow", "x": 240, "y": 220, "width": 80, "height": 0, "angle": 0, "strokeColor": "#b8650a", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": { "type": 2 }, "seed": 1197912207, "versionNonce": 1341645599, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "points": [ [ 0, 0 ], [ 80, 0 ] ], "lastCommittedPoint": null, "startBinding": null, "endBinding": null, "startArrowhead": null, "endArrowhead": "arrow" }, { "id": "t1164998035", "type": "text", "x": 280.0, "y": 206.0, "width": 114.95, "height": 13.75, "angle": 0, "strokeColor": "#b8650a", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 1516025784, "versionNonce": 1468455562, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "bpf_probe_read_user", "fontSize": 11, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "bpf_probe_read_user", "lineHeight": 1.25, "baseline": 11 }, { "id": "a415213442", "type": "arrow", "x": 440, "y": 124, "width": 0, "height": 61, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "dashed", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": { "type": 2 }, "seed": 509165843, "versionNonce": 65459920, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "points": [ [ 0, 0 ], [ 0, 61 ] ], "lastCommittedPoint": null, "startBinding": null, "endBinding": null, "startArrowhead": null, "endArrowhead": "arrow" }, { "id": "t716026708", "type": "text", "x": 440.0, "y": 140.5, "width": 72.60000000000001, "height": 13.75, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 1936050095, "versionNonce": 510885019, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "same layout?", "fontSize": 11, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "same layout?", "lineHeight": 1.25, "baseline": 11 }, { "id": "a1835162503", "type": "arrow", "x": 620, "y": 92, "width": 60, "height": 0, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 2, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": { "type": 2 }, "seed": 324322190, "versionNonce": 1275015857, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "points": [ [ 0, 0 ], [ -60, 0 ] ], "lastCommittedPoint": null, "startBinding": null, "endBinding": null, "startArrowhead": null, "endArrowhead": "arrow" }, { "id": "t1587408958", "type": "text", "x": 590.0, "y": 78.0, "width": 54.45, "height": 13.75, "angle": 0, "strokeColor": "#555555", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 621343898, "versionNonce": 971863871, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "describes", "fontSize": 11, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "describes", "lineHeight": 1.25, "baseline": 11 }, { "id": "t1140853398", "type": "text", "x": 430, "y": 285, "width": 435.6, "height": 13.75, "angle": 0, "strokeColor": "#888888", "backgroundColor": "transparent", "fillStyle": "solid", "strokeWidth": 1, "strokeStyle": "solid", "roughness": 1, "opacity": 100, "groupIds": [], "frameId": null, "roundness": null, "seed": 706300719, "versionNonce": 103407954, "isDeleted": false, "boundElements": [], "updated": 1, "link": null, "locked": false, "text": "share the type when you own the code; recover it from BTF when you don't", "fontSize": 11, "fontFamily": 1, "textAlign": "left", "verticalAlign": "top", "containerId": null, "originalText": "share the type when you own the code; recover it from BTF when you don't", "lineHeight": 1.25, "baseline": 11 } ], "appState": { "viewBackgroundColor": "#ffffff", "gridSize": null }, "files": {} }