diff --git a/Cargo.lock b/Cargo.lock
index c7250c0..58013e0 100644
--- a/Cargo.lock
+++ b/Cargo.lock
@@ -35,6 +35,15 @@ dependencies = [
  "version_check",
 ]
 
+[[package]]
+name = "aho-corasick"
+version = "0.6.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "81ce3d38065e618af2d7b77e10c5ad9a069859b4be3c2250f674af3840d9c8a5"
+dependencies = [
+ "memchr 2.5.0",
+]
+
 [[package]]
 name = "android_system_properties"
 version = "0.1.4"
@@ -44,6 +53,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "ansi_term"
+version = "0.12.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d52a9bb7ec0cf484c551830a7ce27bd20d67eac647e1befb56b0be4ee39a55d2"
+dependencies = [
+ "winapi 0.3.9",
+]
+
 [[package]]
 name = "approx"
 version = "0.5.1"
@@ -77,7 +95,18 @@ version = "0.37.0+1.3.209"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "006ca68e0f2b03f22d6fa9f2860f85aed430d257fec20f8879b2145e7c7ae1a6"
 dependencies = [
- "libloading",
+ "libloading 0.7.3",
+]
+
+[[package]]
+name = "atty"
+version = "0.2.14"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d9b39be18770d11421cdb1b9947a45dd3f37e93092cbf377614828a319d5fee8"
+dependencies = [
+ "hermit-abi",
+ "libc",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -86,6 +115,26 @@ version = "1.1.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d468802bab17cbc0cc575e9b053f41e72aa36bfa6b7f55e3529ffa43161b97fa"
 
+[[package]]
+name = "bindgen"
+version = "0.32.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8b242e11a8f446f5fc7b76b37e81d737cabca562a927bd33766dac55b5f1177f"
+dependencies = [
+ "cexpr",
+ "cfg-if 0.1.10",
+ "clang-sys",
+ "clap",
+ "env_logger",
+ "lazy_static",
+ "log 0.3.9",
+ "peeking_take_while",
+ "proc-macro2 0.2.3",
+ "quote 0.4.2",
+ "regex",
+ "which",
+]
+
 [[package]]
 name = "bit-set"
 version = "0.5.3"
@@ -134,8 +183,8 @@ version = "1.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "cfd2f4180c5721da6335cc9e9061cce522b87a35e51cc57636d28d22a9863c80"
 dependencies = [
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
 ]
 
@@ -152,6 +201,8 @@ dependencies = [
  "chrono",
  "iced",
  "iced_native",
+ "lttng-ust",
+ "lttng-ust-generate",
 ]
 
 [[package]]
@@ -160,7 +211,7 @@ version = "0.10.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a22a6a8f622f797120d452c630b0ab12e1331a1a753e2039ce7868d4ac77b4ee"
 dependencies = [
- "log",
+ "log 0.4.17",
  "nix 0.24.2",
  "slotmap",
  "thiserror",
@@ -173,6 +224,21 @@ version = "1.0.73"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2fff2a6927b3bb87f9595d67196a70493f627687a71d87a0d692242c33f58c11"
 
+[[package]]
+name = "cexpr"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "42aac45e9567d97474a834efdee3081b3c942b2205be932092f53354ce503d6c"
+dependencies = [
+ "nom 3.2.1",
+]
+
+[[package]]
+name = "cfg-if"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "4785bdd1c96b2a846b2bd7cc02e86b6b3dbf14e7e53446c4f54c92a361040822"
+
 [[package]]
 name = "cfg-if"
 version = "1.0.0"
@@ -197,7 +263,33 @@ dependencies = [
  "num-traits",
  "time",
  "wasm-bindgen",
- "winapi",
+ "winapi 0.3.9",
+]
+
+[[package]]
+name = "clang-sys"
+version = "0.21.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e414af9726e1d11660801e73ccc7fb81803fb5f49e5903a25b348b2b3b480d2e"
+dependencies = [
+ "glob",
+ "libc",
+ "libloading 0.4.3",
+]
+
+[[package]]
+name = "clap"
+version = "2.34.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "a0610544180c38b88101fecf2dd634b174a62eef6946f84dfc6a7127512b381c"
+dependencies = [
+ "ansi_term",
+ "atty",
+ "bitflags",
+ "strsim 0.8.0",
+ "textwrap",
+ "unicode-width",
+ "vec_map",
 ]
 
 [[package]]
@@ -208,7 +300,7 @@ checksum = "c4ab1b92798304eedc095b53942963240037c0516452cb11aeba709d420b2219"
 dependencies = [
  "error-code",
  "str-buf",
- "winapi",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -356,7 +448,7 @@ version = "1.3.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "b540bd8bc810d3885c6ea91e2018302f68baba2129ab3e88f32389ee9370880d"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
 ]
 
 [[package]]
@@ -365,7 +457,7 @@ version = "0.5.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c2dd04ddaf88237dc3b8d8f9a3c1004b506b54b3313403944054d23c0870c521"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "crossbeam-utils",
 ]
 
@@ -375,7 +467,7 @@ version = "0.8.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "715e8152b692bba2d374b53d4875445368fdf21a94751410af607a5ac677d1fc"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "crossbeam-epoch",
  "crossbeam-utils",
 ]
@@ -387,7 +479,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "045ebe27666471bb549370b4b0b3e51b07f56325befa4284db65fc89c02511b1"
 dependencies = [
  "autocfg",
- "cfg-if",
+ "cfg-if 1.0.0",
  "crossbeam-utils",
  "memoffset",
  "once_cell",
@@ -400,7 +492,7 @@ version = "0.8.11"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "51887d4adc7b564537b15adcfb307936f8075dfcd5f00dde9a9f1d29383682bc"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "once_cell",
 ]
 
@@ -419,12 +511,12 @@ dependencies = [
  "foreign-types 0.5.0",
  "freetype-rs",
  "libc",
- "log",
+ "log 0.4.17",
  "objc",
  "once_cell",
  "pkg-config",
  "servo-fontconfig",
- "winapi",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -440,8 +532,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "827914e1f53b1e0e025ecd3d967a7836b7bcb54520f90e21ef8df7b4d88a2759"
 dependencies = [
  "bitflags",
- "libloading",
- "winapi",
+ "libloading 0.7.3",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -462,9 +554,9 @@ checksum = "859d65a907b6852c9361e3185c862aae7fafd2887876799fa55f5f99dc40d610"
 dependencies = [
  "fnv",
  "ident_case",
- "proc-macro2",
- "quote",
- "strsim",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
+ "strsim 0.10.0",
  "syn",
 ]
 
@@ -475,7 +567,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9c972679f83bdf9c42bd905396b6c3588a843a17f0f16dfcfa3e2c5d57441835"
 dependencies = [
  "darling_core",
- "quote",
+ "quote 1.0.20",
  "syn",
 ]
 
@@ -491,7 +583,7 @@ version = "0.5.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "ac1b7517328c04c2aa68422fc60a41b92208182142ed04a25879c26c8f878794"
 dependencies = [
- "libloading",
+ "libloading 0.7.3",
 ]
 
 [[package]]
@@ -510,7 +602,7 @@ dependencies = [
  "libc",
  "serde",
  "serde_derive",
- "winapi",
+ "winapi 0.3.9",
  "wio",
 ]
 
@@ -547,11 +639,21 @@ version = "0.3.0"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0f2f4de457d974f548d2c2a16f709ebd81013579e543bd1a9b19ced88132c2cf"
 dependencies = [
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
 ]
 
+[[package]]
+name = "env_logger"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3ddf21e73e016298f5cb37d6ef8e8da8e39f91f9ec8b0df44b7deb16a9f8cd5b"
+dependencies = [
+ "log 0.3.9",
+ "regex",
+]
+
 [[package]]
 name = "error-code"
 version = "2.3.1"
@@ -631,8 +733,8 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c8469d0d40519bc608ec6863f1cc88f3f1deee15913f2f3b3e573d81ed38cccc"
 dependencies = [
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
 ]
 
@@ -725,8 +827,8 @@ version = "0.3.21"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "33c1e13800337f4d4d7a316bf45a567dbcb6ffe087f16424852d97e97a91f512"
 dependencies = [
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
 ]
 
@@ -754,7 +856,7 @@ dependencies = [
  "futures-macro",
  "futures-sink",
  "futures-task",
- "memchr",
+ "memchr 2.5.0",
  "pin-project-lite",
  "pin-utils",
  "slab",
@@ -776,7 +878,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c1ebd34e35c46e00bb73e81363248d627782724609fe1b6396f553f68fe3862e"
 dependencies = [
  "libc",
- "winapi",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -785,7 +887,7 @@ version = "0.2.7"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4eb1a864a501629691edf6c15a593b7a51eebaa1e8468e9ddc623de7c9b58ec6"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
  "wasi 0.11.0+wasi-snapshot-preview1",
 ]
@@ -796,6 +898,12 @@ version = "0.21.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "518faa5064866338b013ff9b2350dc318e14cc4fcd6cb8206d7e7c9886c98815"
 
+[[package]]
+name = "glob"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8be18de09a56b60ed0edf84bc9df007e30040691af7acd1c41874faac5895bfb"
+
 [[package]]
 name = "glow"
 version = "0.11.2"
@@ -816,7 +924,7 @@ checksum = "a69c65dd1f1fbb6209aa00f78636e436ad0a55b7d8e5de886d00720dcad9c6e2"
 dependencies = [
  "glyph_brush_draw_cache",
  "glyph_brush_layout",
- "log",
+ "log 0.4.17",
  "ordered-float",
  "rustc-hash",
  "twox-hash",
@@ -936,7 +1044,7 @@ dependencies = [
  "core-foundation-sys",
  "js-sys",
  "wasm-bindgen",
- "winapi",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -966,7 +1074,7 @@ name = "iced_futures"
 version = "0.5.1"
 dependencies = [
  "futures",
- "log",
+ "log 0.4.17",
  "wasm-bindgen-futures",
  "wasm-timer",
 ]
@@ -980,7 +1088,7 @@ dependencies = [
  "glam",
  "iced_native",
  "iced_style",
- "log",
+ "log 0.4.17",
  "raw-window-handle 0.5.0",
  "thiserror",
 ]
@@ -1019,7 +1127,7 @@ dependencies = [
  "guillotiere",
  "iced_graphics",
  "iced_native",
- "log",
+ "log 0.4.17",
  "raw-window-handle 0.5.0",
  "wgpu",
  "wgpu_glyph",
@@ -1032,10 +1140,10 @@ dependencies = [
  "iced_futures",
  "iced_graphics",
  "iced_native",
- "log",
+ "log 0.4.17",
  "thiserror",
  "web-sys",
- "winapi",
+ "winapi 0.3.9",
  "window_clipboard",
  "winit",
 ]
@@ -1062,7 +1170,7 @@ version = "0.1.12"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "7a5bbe824c507c5da5956355e86a746d82e0e1464f65d862cc5e71da70e94b2c"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "js-sys",
  "wasm-bindgen",
  "web-sys",
@@ -1083,6 +1191,16 @@ dependencies = [
  "wasm-bindgen",
 ]
 
+[[package]]
+name = "kernel32-sys"
+version = "0.2.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7507624b29483431c0ba2d82aece8ca6cdba9382bff4ddd0f7490560c056098d"
+dependencies = [
+ "winapi 0.2.8",
+ "winapi-build",
+]
+
 [[package]]
 name = "khronos-egl"
 version = "4.1.0"
@@ -1090,7 +1208,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "8c2352bd1d0bceb871cb9d40f24360c8133c11d7486b68b5381c1dd1a32015e3"
 dependencies = [
  "libc",
- "libloading",
+ "libloading 0.7.3",
  "pkg-config",
 ]
 
@@ -1106,14 +1224,25 @@ version = "0.2.126"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "349d5a591cd28b49e1d1037471617a32ddcda5731b99419008085f72d5a53836"
 
+[[package]]
+name = "libloading"
+version = "0.4.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fd38073de8f7965d0c17d30546d4bb6da311ab428d1c7a3fc71dff7f9d4979b9"
+dependencies = [
+ "kernel32-sys",
+ "lazy_static",
+ "winapi 0.2.8",
+]
+
 [[package]]
 name = "libloading"
 version = "0.7.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "efbc0f03f9a775e9f6aed295c6a1ba2253c5757a9e03d55c6caa46a681abcddd"
 dependencies = [
- "cfg-if",
- "winapi",
+ "cfg-if 1.0.0",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -1132,13 +1261,38 @@ dependencies = [
  "scopeguard",
 ]
 
+[[package]]
+name = "log"
+version = "0.3.9"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e19e8d5c34a3e0e2223db8e060f9e8264aeeb5c5fc64a4ee9965c062211c024b"
+dependencies = [
+ "log 0.4.17",
+]
+
 [[package]]
 name = "log"
 version = "0.4.17"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "abb12e687cfb44aa40f41fc3978ef76448f9b6038cad6aef4259d3c095a2382e"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
+]
+
+[[package]]
+name = "lttng-ust"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "3d029a0683065983856ffcc8818fc59d71a48acd4616b3668c69f1ee8026a593"
+
+[[package]]
+name = "lttng-ust-generate"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "f0210fff1da0b5233f88c1498ad26e7a31ebe28b5e9dc39908d636f5cd964495"
+dependencies = [
+ "bindgen",
+ "cc",
 ]
 
 [[package]]
@@ -1150,6 +1304,15 @@ dependencies = [
  "libc",
 ]
 
+[[package]]
+name = "memchr"
+version = "1.0.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "148fab2e51b4f1cfc66da2a7c32981d1d3c083a803978268bb11fe4b86925e7a"
+dependencies = [
+ "libc",
+]
+
 [[package]]
 name = "memchr"
 version = "2.5.0"
@@ -1184,7 +1347,7 @@ dependencies = [
  "block",
  "core-graphics-types",
  "foreign-types 0.3.2",
- "log",
+ "log 0.4.17",
  "objc",
 ]
 
@@ -1210,7 +1373,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "57ee1c23c7c63b0c9250c339ffdc69255f110b298b901b9f6c82547b7b87caaf"
 dependencies = [
  "libc",
- "log",
+ "log 0.4.17",
  "wasi 0.11.0+wasi-snapshot-preview1",
  "windows-sys",
 ]
@@ -1226,13 +1389,13 @@ dependencies = [
  "codespan-reporting",
  "hexf-parse",
  "indexmap",
- "log",
+ "log 0.4.17",
  "num-traits",
  "rustc-hash",
  "spirv",
  "termcolor",
  "thiserror",
- "unicode-xid",
+ "unicode-xid 0.2.3",
 ]
 
 [[package]]
@@ -1262,7 +1425,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0434fabdd2c15e0aab768ca31d5b7b333717f03cf02037d5a0a3ff3c278ed67f"
 dependencies = [
  "libc",
- "log",
+ "log 0.4.17",
  "ndk",
  "ndk-context",
  "ndk-macro",
@@ -1279,8 +1442,8 @@ checksum = "0df7ac00c4672f9d5aece54ee3347520b7e20f158656c7db2e6de01902eb7a6c"
 dependencies = [
  "darling",
  "proc-macro-crate",
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
 ]
 
@@ -1301,7 +1464,7 @@ checksum = "e4916f159ed8e5de0082076562152a76b7a1f64a01fd9d1e0fea002c37624faf"
 dependencies = [
  "bitflags",
  "cc",
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
  "memoffset",
 ]
@@ -1313,18 +1476,27 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "195cdbc1741b8134346d515b3a56a1c94b0912758009cfd53f99ea0f57b065fc"
 dependencies = [
  "bitflags",
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
  "memoffset",
 ]
 
+[[package]]
+name = "nom"
+version = "3.2.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "05aec50c70fd288702bcd93284a8444607f3292dbdf2a30de5ea5dcdbe72287b"
+dependencies = [
+ "memchr 1.0.2",
+]
+
 [[package]]
 name = "nom"
 version = "7.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "a8903e5a29a317527874d0402f867152a3d21c908bb0b933e416c65e301d4c36"
 dependencies = [
- "memchr",
+ "memchr 2.5.0",
  "minimal-lexical",
 ]
 
@@ -1373,8 +1545,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3b0498641e53dd6ac1a4f22547548caa6864cc4933784319cd1775271c5a46ce"
 dependencies = [
  "proc-macro-crate",
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
 ]
 
@@ -1460,8 +1632,8 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "05eedf46a8e7c27f74af0c9cfcdb004ceca158cb1b918c6f68f8d7a549b3e427"
 dependencies = [
  "find-crate",
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
 ]
 
@@ -1492,12 +1664,12 @@ version = "0.8.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "d76e8e1493bcac0d2766c42737f34458f1c8c50c0d23bcb24ea953affb273216"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "instant",
  "libc",
  "redox_syscall",
  "smallvec",
- "winapi",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -1506,13 +1678,19 @@ version = "0.9.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "09a279cbf25cb0757810394fbc1e359949b59e348145c643a939a525692e6929"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "libc",
  "redox_syscall",
  "smallvec",
  "windows-sys",
 ]
 
+[[package]]
+name = "peeking_take_while"
+version = "0.1.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "19b17cddbe7ec3f8bc800887bab5e717348c95ea2ca0b1bf0837fb964dc67099"
+
 [[package]]
 name = "percent-encoding"
 version = "2.1.0"
@@ -1547,8 +1725,8 @@ checksum = "cd94351ac44e70e56b59883e15029a5135f902a8a3020f9c18d580a420e526aa"
 dependencies = [
  "phf_generator",
  "phf_shared",
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
 ]
 
@@ -1607,6 +1785,15 @@ dependencies = [
  "toml",
 ]
 
+[[package]]
+name = "proc-macro2"
+version = "0.2.3"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "cd07deb3c6d1d9ff827999c7f9b04cdfd66b1b17ae508e14fe47b620f2282ae0"
+dependencies = [
+ "unicode-xid 0.1.0",
+]
+
 [[package]]
 name = "proc-macro2"
 version = "1.0.42"
@@ -1622,13 +1809,22 @@ version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "2f61dcf0b917cd75d4521d7343d1ffff3d1583054133c9b5cbea3375c703c40d"
 
+[[package]]
+name = "quote"
+version = "0.4.2"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "1eca14c727ad12702eb4b6bfb5a232287dcf8385cb8ca83a3eeaf6519c44c408"
+dependencies = [
+ "proc-macro2 0.2.3",
+]
+
 [[package]]
 name = "quote"
 version = "1.0.20"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3bcdf212e9776fbcb2d23ab029360416bb1706b1aea2d1a5ba002727cbcab804"
 dependencies = [
- "proc-macro2",
+ "proc-macro2 1.0.42",
 ]
 
 [[package]]
@@ -1728,6 +1924,28 @@ dependencies = [
  "bitflags",
 ]
 
+[[package]]
+name = "regex"
+version = "0.2.11"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "9329abc99e39129fcceabd24cf5d85b4671ef7c29c50e972bc5afe32438ec384"
+dependencies = [
+ "aho-corasick",
+ "memchr 2.5.0",
+ "regex-syntax",
+ "thread_local",
+ "utf8-ranges",
+]
+
+[[package]]
+name = "regex-syntax"
+version = "0.5.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7d707a4fa2637f2dca2ef9fd02225ec7661fe01a53623c1e6515b6916511f7a7"
+dependencies = [
+ "ucd-util",
+]
+
 [[package]]
 name = "renderdoc-sys"
 version = "0.7.1"
@@ -1768,7 +1986,7 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "04b7c47a572f73de28bee5b5060d085b42b6ce1e4ee2b49c956ea7b25e94b6f0"
 dependencies = [
  "crossfont",
- "log",
+ "log 0.4.17",
  "smithay-client-toolkit",
  "tiny-skia",
 ]
@@ -1785,8 +2003,8 @@ version = "1.0.144"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "94ed3a816fb1d101812f83e789f888322c34e291f894f19590dc310963e87a00"
 dependencies = [
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
 ]
 
@@ -1851,7 +2069,7 @@ dependencies = [
  "calloop",
  "dlib",
  "lazy_static",
- "log",
+ "log 0.4.17",
  "memmap2",
  "nix 0.24.2",
  "pkg-config",
@@ -1892,6 +2110,12 @@ version = "1.0.6"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "9e08d8363704e6c71fc928674353e6b7c23dcea9d82d7012c8faf2a3a025f8d0"
 
+[[package]]
+name = "strsim"
+version = "0.8.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "8ea5119cdb4c55b55d432abb513a0429384878c15dde60cc77b1c99de1a95a6a"
+
 [[package]]
 name = "strsim"
 version = "0.10.0"
@@ -1910,8 +2134,8 @@ version = "1.0.98"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "c50aef8a904de4c23c788f104b7dddc7d6f79c647c7c8ce4cc8f73eb0ca773dd"
 dependencies = [
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "unicode-ident",
 ]
 
@@ -1924,6 +2148,15 @@ dependencies = [
  "winapi-util",
 ]
 
+[[package]]
+name = "textwrap"
+version = "0.11.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "d326610f408c7a4eb6f51c37c330e496b08506c9457c9d34287ecc38809fb060"
+dependencies = [
+ "unicode-width",
+]
+
 [[package]]
 name = "thiserror"
 version = "1.0.31"
@@ -1939,11 +2172,20 @@ version = "1.0.31"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "0396bc89e626244658bef819e22d0cc459e795a5ebe878e6ec336d1674a8d79a"
 dependencies = [
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
 ]
 
+[[package]]
+name = "thread_local"
+version = "0.3.6"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "c6b53e329000edc2b34dbe8545fd20e55a333362d0a321909685a19bd28c3f1b"
+dependencies = [
+ "lazy_static",
+]
+
 [[package]]
 name = "time"
 version = "0.1.44"
@@ -1952,7 +2194,7 @@ checksum = "6db9e6914ab8b1ae1c260a4ae7a49b6c5611b40328a735b21862567685e73255"
 dependencies = [
  "libc",
  "wasi 0.10.0+wasi-snapshot-preview1",
- "winapi",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -1964,7 +2206,7 @@ dependencies = [
  "arrayref",
  "arrayvec 0.5.2",
  "bytemuck",
- "cfg-if",
+ "cfg-if 1.0.0",
  "png",
  "safe_arch",
  "tiny-skia-path",
@@ -2001,11 +2243,17 @@ version = "1.6.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "97fee6b57c6a41524a810daee9286c02d7752c4253064d0b05472833a438f675"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "rand",
  "static_assertions",
 ]
 
+[[package]]
+name = "ucd-util"
+version = "0.1.10"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "abd2fc5d32b590614af8b0a20d837f32eca055edd0bbead59a9cfe80858be003"
+
 [[package]]
 name = "unicode-ident"
 version = "1.0.2"
@@ -2024,12 +2272,24 @@ version = "0.1.9"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "3ed742d4ea2bd1176e236172c8429aaf54486e7ac098db29ffe6529e0ce50973"
 
+[[package]]
+name = "unicode-xid"
+version = "0.1.0"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "fc72304796d0818e357ead4e000d19c9c174ab23dc11093ac919054d20a6a7fc"
+
 [[package]]
 name = "unicode-xid"
 version = "0.2.3"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "957e51f3646910546462e67d5f7599b9e4fb8acdd304b087a6494730f9eebf04"
 
+[[package]]
+name = "utf8-ranges"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "7fcfc827f90e53a02eaef5e535ee14266c1d569214c6aa70133a624d8a3164ba"
+
 [[package]]
 name = "vec_map"
 version = "0.8.2"
@@ -2060,7 +2320,7 @@ version = "0.2.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "eaf9f5aceeec8be17c128b2e93e031fb8a4d469bb9c4ae2d7dc1888b26887268"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "wasm-bindgen-macro",
 ]
 
@@ -2071,10 +2331,10 @@ source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "4c8ffb332579b0557b52d268b91feab8df3615f265d5270fec2a8c95b17c1142"
 dependencies = [
  "bumpalo",
- "log",
+ "log 0.4.17",
  "once_cell",
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
  "wasm-bindgen-shared",
 ]
@@ -2085,7 +2345,7 @@ version = "0.4.33"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "23639446165ca5a5de86ae1d8896b737ae80319560fbaa4c2887b7da6e7ebd7d"
 dependencies = [
- "cfg-if",
+ "cfg-if 1.0.0",
  "js-sys",
  "wasm-bindgen",
  "web-sys",
@@ -2097,7 +2357,7 @@ version = "0.2.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "052be0f94026e6cbc75cdefc9bae13fd6052cdcaf532fa6c45e7ae33a1e6c810"
 dependencies = [
- "quote",
+ "quote 1.0.20",
  "wasm-bindgen-macro-support",
 ]
 
@@ -2107,8 +2367,8 @@ version = "0.2.83"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "07bc0c051dc5f23e307b13285f9d75df86bfdf816c5721e573dec1f9b8aa193c"
 dependencies = [
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "syn",
  "wasm-bindgen-backend",
  "wasm-bindgen-shared",
@@ -2192,8 +2452,8 @@ version = "0.29.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "39a1ed3143f7a143187156a2ab52742e89dac33245ba505c17224df48939f9e0"
 dependencies = [
- "proc-macro2",
- "quote",
+ "proc-macro2 1.0.42",
+ "quote 1.0.20",
  "xml-rs",
 ]
 
@@ -2226,7 +2486,7 @@ checksum = "c2272b17bffc8a0c7d53897435da7c1db587c87d3a14e8dae9cdb8d1d210fc0f"
 dependencies = [
  "arrayvec 0.7.2",
  "js-sys",
- "log",
+ "log 0.4.17",
  "naga",
  "parking_lot 0.12.1",
  "raw-window-handle 0.5.0",
@@ -2252,7 +2512,7 @@ dependencies = [
  "cfg_aliases",
  "codespan-reporting",
  "fxhash",
- "log",
+ "log 0.4.17",
  "naga",
  "parking_lot 0.12.1",
  "profiling",
@@ -2285,8 +2545,8 @@ dependencies = [
  "gpu-descriptor",
  "js-sys",
  "khronos-egl",
- "libloading",
- "log",
+ "libloading 0.7.3",
+ "log 0.4.17",
  "metal",
  "naga",
  "objc",
@@ -2300,7 +2560,7 @@ dependencies = [
  "wasm-bindgen",
  "web-sys",
  "wgpu-types",
- "winapi",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -2320,10 +2580,25 @@ checksum = "0cafb82773e0f124a33674dab5de4dff73175aeb921949047ab014efb58fb446"
 dependencies = [
  "bytemuck",
  "glyph_brush",
- "log",
+ "log 0.4.17",
  "wgpu",
 ]
 
+[[package]]
+name = "which"
+version = "1.0.5"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "e84a603e7e0b1ce1aa1ee2b109c7be00155ce52df5081590d1ffb93f4f515cb2"
+dependencies = [
+ "libc",
+]
+
+[[package]]
+name = "winapi"
+version = "0.2.8"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "167dc9d6949a9b857f3451275e911c3f44255842c1f7a76f33c55103a909087a"
+
 [[package]]
 name = "winapi"
 version = "0.3.9"
@@ -2334,6 +2609,12 @@ dependencies = [
  "winapi-x86_64-pc-windows-gnu",
 ]
 
+[[package]]
+name = "winapi-build"
+version = "0.1.1"
+source = "registry+https://github.com/rust-lang/crates.io-index"
+checksum = "2d315eee3b34aca4797b2da6b13ed88266e6d612562a0c46390af8299fc699bc"
+
 [[package]]
 name = "winapi-i686-pc-windows-gnu"
 version = "0.4.0"
@@ -2346,7 +2627,7 @@ version = "0.1.5"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "70ec6ce85bb158151cae5e5c87f95a8e97d2c0c4b001223f33a334e3ce5de178"
 dependencies = [
- "winapi",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -2355,7 +2636,7 @@ version = "0.1.1"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "44c17110f57155602a80dca10be03852116403c9ff3cd25b079d666f2aa3df6e"
 dependencies = [
- "winapi",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -2433,7 +2714,7 @@ dependencies = [
  "dispatch",
  "instant",
  "libc",
- "log",
+ "log 0.4.17",
  "mio",
  "ndk",
  "ndk-glue",
@@ -2459,7 +2740,7 @@ version = "0.2.2"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "5d129932f4644ac2396cb456385cbf9e63b5b30c6e8dc4820bdca4eb082037a5"
 dependencies = [
- "winapi",
+ "winapi 0.3.9",
 ]
 
 [[package]]
@@ -2481,7 +2762,7 @@ checksum = "6e99be55648b3ae2a52342f9a870c0e138709a3493261ce9b469afe6e4df6d8a"
 dependencies = [
  "gethostname",
  "nix 0.22.3",
- "winapi",
+ "winapi 0.3.9",
  "winapi-wsapoll",
 ]
 
@@ -2491,7 +2772,7 @@ version = "0.3.4"
 source = "registry+https://github.com/rust-lang/crates.io-index"
 checksum = "463705a63313cd4301184381c5e8042f0a7e9b4bb63653f216311d4ae74690b7"
 dependencies = [
- "nom",
+ "nom 7.1.1",
 ]
 
 [[package]]
diff --git a/Cargo.toml b/Cargo.toml
index a591e12..5f78df9 100644
--- a/Cargo.toml
+++ b/Cargo.toml
@@ -3,11 +3,16 @@ name = "calendar"
 version = "0.1.0"
 edition = "2021"
 
-# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
+[features]
+tracing = ["dep:lttng-ust"]
 
 [dependencies]
 #iced = "0.4.2"
 #iced_native = "0.5.1"
 iced = { path = "../iced" }
 iced_native = { path = "../iced/native" }
-chrono = "0.4"
\ No newline at end of file
+chrono = "0.4"
+lttng-ust = { version = "0.1.0", optional = true }
+
+[build-dependencies]
+lttng-ust-generate = "0.1.0"
\ No newline at end of file
diff --git a/build.rs b/build.rs
new file mode 100644
index 0000000..bba0d98
--- /dev/null
+++ b/build.rs
@@ -0,0 +1,25 @@
+use std::env;
+use std::path::PathBuf;
+
+use lttng_ust_generate::{Provider, Generator, CTFType, CIntegerType};
+
+fn main() {
+    // the provider is called calendar
+    let mut provider = Provider::new("calendar");
+
+    // class for drawing events
+    let draw_class = provider.create_class("draw")
+        .add_field("width", CTFType::Integer(CIntegerType::I32))
+        .add_field("height", CTFType::Integer(CIntegerType::I32));
+
+    // drawing events
+    draw_class.instantiate("draw_entry");
+    draw_class.instantiate("draw_exit");
+
+    Generator::default()
+        .generated_lib_name("calendar_tracepoints")
+        .register_provider(provider)
+        .output_file_name(PathBuf::from(env::var("OUT_DIR").unwrap()).join("tracepoints.rs"))
+        .generate()
+        .expect("Unable to generate tracepoint bindings");
+}
\ No newline at end of file
diff --git a/src/ui/calendar.rs b/src/ui/calendar.rs
index 6b4e142..60a53a9 100644
--- a/src/ui/calendar.rs
+++ b/src/ui/calendar.rs
@@ -16,7 +16,19 @@ use iced_native::alignment;
 use iced_native::widget::Tree;
 use chrono::{NaiveDate, Datelike, Duration, Local};
 use super::basics::CellGrid;
-use crate::model::events::{Event, EventsCollection};
+use crate::model::events::EventsCollection;
+
+#[cfg(feature = "tracing")]
+extern crate lttng_ust;
+
+#[cfg(feature = "tracing")]
+use lttng_ust::import_tracepoints;
+
+#[cfg(feature = "tracing")]
+import_tracepoints!(
+    concat!(env!("OUT_DIR"), "/tracepoints.rs"),
+    tracepoints
+);
 
 const MONTH_NAMES: [&str;12] = [
     "gen",
@@ -543,8 +555,6 @@ impl<'a> CalendarYearView<'a> {
                     self.params.day_today_bg
                 } else if weekday > 4 {
                     self.params.day_weekend_bg
-                } else if self.events.is_any_in_day(current_day) {
-                    self.params.ev_bg
                 } else {
                     Color::TRANSPARENT
                 };
@@ -571,6 +581,25 @@ impl<'a> CalendarYearView<'a> {
                     horizontal_alignment: alignment::Horizontal::Left,
                     vertical_alignment: alignment::Vertical::Top,
                     });
+                // render events, if enough space
+
+                let day_text_size = renderer.measure(content, font_size as u16, Default::default(), day_bounds.size());
+                let ev_height: f32 = 12.0;
+                if day_bounds.height - day_text_size.1 > ev_height {
+                    if self.events.is_any_in_day(current_day) {
+                        renderer.fill_quad(renderer::Quad {
+                                bounds: Rectangle {
+                                    y: y + day_text_size.1,
+                                    height: ev_height,
+                                    ..day_bounds
+                                },
+                                border_radius: 0.0.into(),
+                                border_width: 1.0,
+                                border_color: self.params.day_other_month_fg,
+                            },
+                            self.params.ev_bg);
+                    }
+                }
             }
         }
     }
@@ -620,6 +649,8 @@ where
     ) {
         let bounds = layout.bounds();
         let margin: f32 = 20.0;
+        #[cfg(feature = "tracing")]
+        tracepoints::calendar::draw_entry(bounds.width as i32, bounds.height as i32);
 
         // week column only visible if there is enough space
         let month_w = if self.params.show_weeks {
@@ -651,6 +682,8 @@ where
         let width = bounds.width - month_w;
         let height = bounds.height - first_row_h;
         self.draw_days(renderer, Rectangle{x, y, width, height});
+        #[cfg(feature = "tracing")]
+        tracepoints::calendar::draw_exit(bounds.width as i32, bounds.height as i32);
     }
 }