mirror of
https://github.com/yshui/picom.git
synced 2024-11-03 04:33:49 -05:00
sleep tracer
Signed-off-by: Yuxuan Shui <yshuiv7@gmail.com>
This commit is contained in:
Yuxuan Shui
parent
0ab3e0740e
commit
92e8ecaf24
10 changed files with 97605 additions and 0 deletions
12
src/picom.c
12
src/picom.c
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@ -1989,6 +1989,17 @@ static bool load_shader_source_for_condition(const c2_lptr_t *cond, void *data)
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return load_shader_source(data, c2_list_get_data(cond));
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}
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#ifndef NDEBUG
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#define probe __attribute__((noinline)) void
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probe xcb_connection_probe(xcb_connection_t *conn) {
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__asm__ volatile("" : : "r"(conn));
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}
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#undef probe
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#else
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static inline void xcb_connection_probe(xcb_connection_t *conn attr_unused) {
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}
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#endif
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/**
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* Initialize a session.
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*
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@ -2088,6 +2099,7 @@ static session_t *session_init(int argc, char **argv, Display *dpy,
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// Use the same Display across reset, primarily for resource leak checking
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x_connection_init(&ps->c, dpy);
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xcb_connection_probe(ps->c.c);
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// We store width/height from screen_info instead using them directly because they
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// can change, see configure_root().
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ps->root_width = ps->c.screen_info->width_in_pixels;
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1
tracer/.gitignore
vendored
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1
tracer/.gitignore
vendored
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@ -0,0 +1 @@
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/target
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737
tracer/Cargo.lock
generated
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737
tracer/Cargo.lock
generated
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@ -0,0 +1,737 @@
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# This file is automatically @generated by Cargo.
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# It is not intended for manual editing.
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|
||||
checksum = "3fdb12b2476b595f9358c5161aa467c2438859caa136dec86c26fdd2efe17b92"
|
||||
|
||||
[[package]]
|
||||
name = "picom-tracer"
|
||||
version = "0.1.0"
|
||||
dependencies = [
|
||||
"libbpf-cargo",
|
||||
"libbpf-rs",
|
||||
"object",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "pkg-config"
|
||||
version = "0.3.29"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "2900ede94e305130c13ddd391e0ab7cbaeb783945ae07a279c268cb05109c6cb"
|
||||
|
||||
[[package]]
|
||||
name = "proc-macro-crate"
|
||||
version = "1.3.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7f4c021e1093a56626774e81216a4ce732a735e5bad4868a03f3ed65ca0c3919"
|
||||
dependencies = [
|
||||
"once_cell",
|
||||
"toml_edit",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "proc-macro2"
|
||||
version = "1.0.78"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "e2422ad645d89c99f8f3e6b88a9fdeca7fabeac836b1002371c4367c8f984aae"
|
||||
dependencies = [
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "quote"
|
||||
version = "1.0.35"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "291ec9ab5efd934aaf503a6466c5d5251535d108ee747472c3977cc5acc868ef"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "regex"
|
||||
version = "1.10.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b62dbe01f0b06f9d8dc7d49e05a0785f153b00b2c227856282f671e0318c9b15"
|
||||
dependencies = [
|
||||
"aho-corasick",
|
||||
"memchr",
|
||||
"regex-automata",
|
||||
"regex-syntax",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "regex-automata"
|
||||
version = "0.4.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5bb987efffd3c6d0d8f5f89510bb458559eab11e4f869acb20bf845e016259cd"
|
||||
dependencies = [
|
||||
"aho-corasick",
|
||||
"memchr",
|
||||
"regex-syntax",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "regex-syntax"
|
||||
version = "0.8.2"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "c08c74e62047bb2de4ff487b251e4a92e24f48745648451635cec7d591162d9f"
|
||||
|
||||
[[package]]
|
||||
name = "rustix"
|
||||
version = "0.38.31"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "6ea3e1a662af26cd7a3ba09c0297a31af215563ecf42817c98df621387f4e949"
|
||||
dependencies = [
|
||||
"bitflags",
|
||||
"errno",
|
||||
"libc",
|
||||
"linux-raw-sys",
|
||||
"windows-sys",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "rustversion"
|
||||
version = "1.0.14"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "7ffc183a10b4478d04cbbbfc96d0873219d962dd5accaff2ffbd4ceb7df837f4"
|
||||
|
||||
[[package]]
|
||||
name = "ruzstd"
|
||||
version = "0.5.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "58c4eb8a81997cf040a091d1f7e1938aeab6749d3a0dfa73af43cdc32393483d"
|
||||
dependencies = [
|
||||
"byteorder",
|
||||
"derive_more",
|
||||
"twox-hash",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "ryu"
|
||||
version = "1.0.16"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "f98d2aa92eebf49b69786be48e4477826b256916e84a57ff2a4f21923b48eb4c"
|
||||
|
||||
[[package]]
|
||||
name = "scroll"
|
||||
version = "0.11.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "04c565b551bafbef4157586fa379538366e4385d42082f255bfd96e4fe8519da"
|
||||
|
||||
[[package]]
|
||||
name = "scroll_derive"
|
||||
version = "0.11.1"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1db149f81d46d2deba7cd3c50772474707729550221e69588478ebf9ada425ae"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn 2.0.48",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "semver"
|
||||
version = "1.0.21"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "b97ed7a9823b74f99c7742f5336af7be5ecd3eeafcb1507d1fa93347b1d589b0"
|
||||
dependencies = [
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde"
|
||||
version = "1.0.196"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "870026e60fa08c69f064aa766c10f10b1d62db9ccd4d0abb206472bee0ce3b32"
|
||||
dependencies = [
|
||||
"serde_derive",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_derive"
|
||||
version = "1.0.196"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "33c85360c95e7d137454dc81d9a4ed2b8efd8fbe19cee57357b32b9771fccb67"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn 2.0.48",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "serde_json"
|
||||
version = "1.0.113"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "69801b70b1c3dac963ecb03a364ba0ceda9cf60c71cfe475e99864759c8b8a79"
|
||||
dependencies = [
|
||||
"itoa",
|
||||
"ryu",
|
||||
"serde",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "static_assertions"
|
||||
version = "1.1.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a2eb9349b6444b326872e140eb1cf5e7c522154d69e7a0ffb0fb81c06b37543f"
|
||||
|
||||
[[package]]
|
||||
name = "strum_macros"
|
||||
version = "0.24.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1e385be0d24f186b4ce2f9982191e7101bb737312ad61c1f2f984f34bcf85d59"
|
||||
dependencies = [
|
||||
"heck",
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"rustversion",
|
||||
"syn 1.0.109",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "1.0.109"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "72b64191b275b66ffe2469e8af2c1cfe3bafa67b529ead792a6d0160888b4237"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "syn"
|
||||
version = "2.0.48"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "0f3531638e407dfc0814761abb7c00a5b54992b849452a0646b7f65c9f770f3f"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"unicode-ident",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "tempfile"
|
||||
version = "3.10.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a365e8cd18e44762ef95d87f284f4b5cd04107fec2ff3052bd6a3e6069669e67"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"fastrand",
|
||||
"rustix",
|
||||
"windows-sys",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "thiserror"
|
||||
version = "1.0.57"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1e45bcbe8ed29775f228095caf2cd67af7a4ccf756ebff23a306bf3e8b47b24b"
|
||||
dependencies = [
|
||||
"thiserror-impl",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "thiserror-impl"
|
||||
version = "1.0.57"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a953cb265bef375dae3de6663da4d3804eee9682ea80d8e2542529b73c531c81"
|
||||
dependencies = [
|
||||
"proc-macro2",
|
||||
"quote",
|
||||
"syn 2.0.48",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "toml_datetime"
|
||||
version = "0.6.5"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3550f4e9685620ac18a50ed434eb3aec30db8ba93b0287467bca5826ea25baf1"
|
||||
|
||||
[[package]]
|
||||
name = "toml_edit"
|
||||
version = "0.19.15"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1b5bb770da30e5cbfde35a2d7b9b8a2c4b8ef89548a7a6aeab5c9a576e3e7421"
|
||||
dependencies = [
|
||||
"indexmap",
|
||||
"toml_datetime",
|
||||
"winnow",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "twox-hash"
|
||||
version = "1.6.3"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "97fee6b57c6a41524a810daee9286c02d7752c4253064d0b05472833a438f675"
|
||||
dependencies = [
|
||||
"cfg-if",
|
||||
"static_assertions",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "unicode-ident"
|
||||
version = "1.0.12"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3354b9ac3fae1ff6755cb6db53683adb661634f67557942dea4facebec0fee4b"
|
||||
|
||||
[[package]]
|
||||
name = "vsprintf"
|
||||
version = "2.0.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "aec2f81b75ca063294776b4f7e8da71d1d5ae81c2b1b149c8d89969230265d63"
|
||||
dependencies = [
|
||||
"cc",
|
||||
"libc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-sys"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "282be5f36a8ce781fad8c8ae18fa3f9beff57ec1b52cb3de0789201425d9a33d"
|
||||
dependencies = [
|
||||
"windows-targets",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows-targets"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "8a18201040b24831fbb9e4eb208f8892e1f50a37feb53cc7ff887feb8f50e7cd"
|
||||
dependencies = [
|
||||
"windows_aarch64_gnullvm",
|
||||
"windows_aarch64_msvc",
|
||||
"windows_i686_gnu",
|
||||
"windows_i686_msvc",
|
||||
"windows_x86_64_gnu",
|
||||
"windows_x86_64_gnullvm",
|
||||
"windows_x86_64_msvc",
|
||||
]
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_gnullvm"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "cb7764e35d4db8a7921e09562a0304bf2f93e0a51bfccee0bd0bb0b666b015ea"
|
||||
|
||||
[[package]]
|
||||
name = "windows_aarch64_msvc"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "bbaa0368d4f1d2aaefc55b6fcfee13f41544ddf36801e793edbbfd7d7df075ef"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_gnu"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "a28637cb1fa3560a16915793afb20081aba2c92ee8af57b4d5f28e4b3e7df313"
|
||||
|
||||
[[package]]
|
||||
name = "windows_i686_msvc"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "ffe5e8e31046ce6230cc7215707b816e339ff4d4d67c65dffa206fd0f7aa7b9a"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnu"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "3d6fa32db2bc4a2f5abeacf2b69f7992cd09dca97498da74a151a3132c26befd"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_gnullvm"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "1a657e1e9d3f514745a572a6846d3c7aa7dbe1658c056ed9c3344c4109a6949e"
|
||||
|
||||
[[package]]
|
||||
name = "windows_x86_64_msvc"
|
||||
version = "0.52.0"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "dff9641d1cd4be8d1a070daf9e3773c5f67e78b4d9d42263020c057706765c04"
|
||||
|
||||
[[package]]
|
||||
name = "winnow"
|
||||
version = "0.5.39"
|
||||
source = "registry+https://github.com/rust-lang/crates.io-index"
|
||||
checksum = "5389a154b01683d28c77f8f68f49dea75f0a4da32557a58f68ee51ebba472d29"
|
||||
dependencies = [
|
||||
"memchr",
|
||||
]
|
||||
13
tracer/Cargo.toml
Normal file
13
tracer/Cargo.toml
Normal file
|
|
@ -0,0 +1,13 @@
|
|||
[package]
|
||||
name = "picom-tracer"
|
||||
version = "0.1.0"
|
||||
edition = "2021"
|
||||
|
||||
# See more keys and their definitions at https://doc.rust-lang.org/cargo/reference/manifest.html
|
||||
|
||||
[dependencies]
|
||||
libbpf-rs = { version = "0.22.1", default-features = false, features = ["novendor"] }
|
||||
object = "0.32.2"
|
||||
|
||||
[build-dependencies]
|
||||
libbpf-cargo = { version = "0.22.1", default-features = false, features = ["novendor"] }
|
||||
24
tracer/build.rs
Normal file
24
tracer/build.rs
Normal file
|
|
@ -0,0 +1,24 @@
|
|||
use std::env;
|
||||
use std::env::consts::ARCH;
|
||||
use std::ffi::OsStr;
|
||||
use std::path::Path;
|
||||
use std::path::PathBuf;
|
||||
|
||||
use libbpf_cargo::SkeletonBuilder;
|
||||
|
||||
const SRC: &str = concat!(env!("CARGO_MANIFEST_DIR"),"/src/bpf/uprobe.bpf.c");
|
||||
|
||||
fn main() {
|
||||
let mut out =
|
||||
PathBuf::from(env::var_os("OUT_DIR").expect("OUT_DIR must be set in build script"));
|
||||
out.push("uprobe.skel.rs");
|
||||
SkeletonBuilder::new()
|
||||
.source(SRC)
|
||||
.clang_args(
|
||||
format!("-I{}", Path::new("../vmlinux").join(ARCH).display())
|
||||
)
|
||||
.build_and_generate(&out)
|
||||
.unwrap();
|
||||
println!("cargo:rerun-if-changed={SRC}");
|
||||
println!("cargo:rustc-link-lib=static=elf");
|
||||
}
|
||||
77
tracer/flake.lock
Normal file
77
tracer/flake.lock
Normal file
|
|
@ -0,0 +1,77 @@
|
|||
{
|
||||
"nodes": {
|
||||
"fenix": {
|
||||
"inputs": {
|
||||
"nixpkgs": [
|
||||
"nixpkgs"
|
||||
],
|
||||
"rust-analyzer-src": "rust-analyzer-src"
|
||||
},
|
||||
"locked": {
|
||||
"lastModified": 1706941198,
|
||||
"narHash": "sha256-t6/qloMYdknVJ9a3QzjylQIZnQfgefJ5kMim50B7dwA=",
|
||||
"owner": "nix-community",
|
||||
"repo": "fenix",
|
||||
"rev": "28dbd8b43ea328ee708f7da538c63e03d5ed93c8",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "nix-community",
|
||||
"repo": "fenix",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"nixpkgs": {
|
||||
"locked": {
|
||||
"lastModified": 1707546158,
|
||||
"narHash": "sha256-nYYJTpzfPMDxI8mzhQsYjIUX+grorqjKEU9Np6Xwy/0=",
|
||||
"owner": "NixOS",
|
||||
"repo": "nixpkgs",
|
||||
"rev": "d934204a0f8d9198e1e4515dd6fec76a139c87f0",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"id": "nixpkgs",
|
||||
"type": "indirect"
|
||||
}
|
||||
},
|
||||
"root": {
|
||||
"inputs": {
|
||||
"fenix": "fenix",
|
||||
"nixpkgs": "nixpkgs",
|
||||
"rust-manifest": "rust-manifest"
|
||||
}
|
||||
},
|
||||
"rust-analyzer-src": {
|
||||
"flake": false,
|
||||
"locked": {
|
||||
"lastModified": 1706875368,
|
||||
"narHash": "sha256-KOBXxNurIU2lEmO6lR2A5El32X9x8ITt25McxKZ/Ew0=",
|
||||
"owner": "rust-lang",
|
||||
"repo": "rust-analyzer",
|
||||
"rev": "8f6a72871ec87ed53cfe43a09fb284168a284e7e",
|
||||
"type": "github"
|
||||
},
|
||||
"original": {
|
||||
"owner": "rust-lang",
|
||||
"ref": "nightly",
|
||||
"repo": "rust-analyzer",
|
||||
"type": "github"
|
||||
}
|
||||
},
|
||||
"rust-manifest": {
|
||||
"flake": false,
|
||||
"locked": {
|
||||
"narHash": "sha256-dJzHy2rwdhnnXQ+kZnygagv7i2sesiOPSsuF+/U/PZY=",
|
||||
"type": "file",
|
||||
"url": "https://static.rust-lang.org/dist/2024-02-12/channel-rust-nightly.toml"
|
||||
},
|
||||
"original": {
|
||||
"type": "file",
|
||||
"url": "https://static.rust-lang.org/dist/2024-02-12/channel-rust-nightly.toml"
|
||||
}
|
||||
}
|
||||
},
|
||||
"root": "root",
|
||||
"version": 7
|
||||
}
|
||||
51
tracer/flake.nix
Normal file
51
tracer/flake.nix
Normal file
|
|
@ -0,0 +1,51 @@
|
|||
{
|
||||
description = "picom tracer";
|
||||
inputs.fenix = {
|
||||
inputs.nixpkgs.follows = "nixpkgs";
|
||||
url = github:nix-community/fenix;
|
||||
};
|
||||
inputs.rust-manifest = {
|
||||
flake = false;
|
||||
url = "https://static.rust-lang.org/dist/2024-02-12/channel-rust-nightly.toml";
|
||||
};
|
||||
|
||||
outputs = { self, nixpkgs, fenix, ... } @ inputs: let
|
||||
system = "x86_64-linux";
|
||||
pkgs = import nixpkgs { inherit system; overlays = [ fenix.overlays.default ]; };
|
||||
rust-toolchain = (pkgs.fenix.fromManifestFile inputs.rust-manifest).withComponents [
|
||||
"rustfmt"
|
||||
"rust-src"
|
||||
"clippy"
|
||||
"rustc"
|
||||
"cargo"
|
||||
];
|
||||
makeLinuxHeaders = kernel: pkgs.stdenv.mkDerivation {
|
||||
name = "linux-source-${kernel.version}";
|
||||
phases = [ "installPhase" ];
|
||||
installPhase = ''
|
||||
mkdir -p $out/include
|
||||
kpath=${kernel.dev}/lib/modules/${kernel.version}
|
||||
cp -rv $kpath/source/include/ $out
|
||||
chmod +w -R $out
|
||||
cp -rv $kpath/build/include/* $out/include
|
||||
chmod +w -R $out
|
||||
cp -rv $kpath/source/arch/x86/include/* $out/include
|
||||
chmod +w -R $out
|
||||
cp -rv $kpath/build/arch/x86/include/generated/* $out/include
|
||||
'';
|
||||
};
|
||||
linuxHeaders = makeLinuxHeaders pkgs.linuxPackages_latest.kernel;
|
||||
in {
|
||||
packages.${system}.rust-toolchain = rust-toolchain;
|
||||
devShells.${system}.default = pkgs.stdenv.mkDerivation (with pkgs; {
|
||||
name = "picom-tracer";
|
||||
nativeBuildInputs = [ rust-toolchain bpftool cargo-generate bcc python311 linuxHeaders pkg-config libbpf clang ];
|
||||
buildInputs = [ elfutils zlib ];
|
||||
shellHook = ''
|
||||
export PYTHONPATH="$PYTHONPATH:${bcc}/lib/python3.11/site-packages/bcc-${bcc.version}-py3.11.egg"
|
||||
export BCC_KERNEL_SOURCE="${linuxHeaders}"
|
||||
export RUSTFLAGS="-L native=${libbpf}/lib -l elf -l z"
|
||||
'';
|
||||
});
|
||||
};
|
||||
}
|
||||
84
tracer/src/bpf/uprobe.bpf.c
Normal file
84
tracer/src/bpf/uprobe.bpf.c
Normal file
|
|
@ -0,0 +1,84 @@
|
|||
// SPDX-License-Identifier: GPL-2.0 OR BSD-3-Clause
|
||||
/* Copyright (c) 2020 Facebook */
|
||||
// clang-format off
|
||||
#include "vmlinux.h"
|
||||
#include <bpf/bpf_helpers.h>
|
||||
#include <bpf/bpf_tracing.h>
|
||||
// clang-format on
|
||||
|
||||
char LICENSE[] SEC("license") = "Dual BSD/GPL";
|
||||
|
||||
struct xcb_connection_t {
|
||||
/* This must be the first field; see _xcb_conn_ret_error(). */
|
||||
int has_error;
|
||||
|
||||
/* constant data */
|
||||
void *setup;
|
||||
int fd;
|
||||
};
|
||||
|
||||
struct {
|
||||
__uint(type, BPF_MAP_TYPE_ARRAY);
|
||||
__type(key, u32);
|
||||
__type(value, u64);
|
||||
__uint(max_entries, 256);
|
||||
} my_map SEC(".maps");
|
||||
|
||||
struct event {
|
||||
u8 task[TASK_COMM_LEN];
|
||||
__u64 delta_us;
|
||||
pid_t pid;
|
||||
};
|
||||
|
||||
struct event _event = {0};
|
||||
|
||||
SEC("uprobe")
|
||||
int BPF_KPROBE(uprobe_epoll_wait) {
|
||||
u64 *curr_pid = bpf_map_lookup_elem(&my_map, (u32[]){0});
|
||||
u32 pid = bpf_get_current_pid_tgid() >> 32;
|
||||
if (!curr_pid || pid != *curr_pid) {
|
||||
return 0;
|
||||
}
|
||||
void **conn_ptr = bpf_map_lookup_elem(&my_map, (u32[]){1});
|
||||
if (!conn_ptr) {
|
||||
return 0;
|
||||
}
|
||||
struct xcb_connection_t conn;
|
||||
if (bpf_probe_read_user(&conn, sizeof(conn), *conn_ptr)) {
|
||||
bpf_printk("cannot read");
|
||||
return 0;
|
||||
}
|
||||
#if 0
|
||||
u64 request_read;
|
||||
if (bpf_probe_read_user(&request_read, sizeof(request_read), (*conn_ptr) + 4216)) {
|
||||
bpf_printk("cannot read");
|
||||
return 0;
|
||||
}
|
||||
bpf_printk("request read %x", request_read);
|
||||
#endif
|
||||
u64 event_head;
|
||||
if (bpf_probe_read_user(&event_head, sizeof(event_head), (*conn_ptr) + 4272)) {
|
||||
bpf_printk("cannot read");
|
||||
return 0;
|
||||
}
|
||||
|
||||
if (event_head != 0) {
|
||||
bpf_printk("epoll_wait %d %p", conn.fd, event_head);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
SEC("uprobe")
|
||||
int BPF_KPROBE(uprobe_xcb_conn, void *ptr) {
|
||||
struct xcb_connection_t conn;
|
||||
u64 pid = bpf_get_current_pid_tgid() >> 32;
|
||||
bpf_map_update_elem(&my_map, (u32[]){0}, &pid, 0);
|
||||
bpf_printk("xcb connection is %p", ptr);
|
||||
if (bpf_probe_read_user(&conn, sizeof(conn), ptr)) {
|
||||
bpf_printk("cannot read");
|
||||
} else {
|
||||
bpf_map_update_elem(&my_map, (u32[]){1}, &ptr, 0);
|
||||
bpf_printk("fd is %d", conn.fd);
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
96533
tracer/src/bpf/vmlinux.h
Normal file
96533
tracer/src/bpf/vmlinux.h
Normal file
File diff suppressed because it is too large
Load diff
73
tracer/src/main.rs
Normal file
73
tracer/src/main.rs
Normal file
|
|
@ -0,0 +1,73 @@
|
|||
use libbpf_rs::skel::{OpenSkel, Skel, SkelBuilder};
|
||||
use libbpf_rs::{PerfBufferBuilder, UprobeOpts};
|
||||
use std::os::unix::ffi::OsStrExt;
|
||||
use object::read::elf::{Dyn, FileHeader};
|
||||
|
||||
mod uprobe {
|
||||
include!(concat!(env!("OUT_DIR"), "/uprobe.skel.rs"));
|
||||
}
|
||||
use object::Object;
|
||||
use uprobe::*;
|
||||
fn handle_lost_events(cpu: i32, count: u64) {
|
||||
eprintln!("Lost {count} events on CPU {cpu}");
|
||||
}
|
||||
fn handle_event(cpu: i32, data: &[u8]) {
|
||||
eprintln!("Got {} bytes of data on {cpu}", data.len());
|
||||
}
|
||||
fn main() {
|
||||
let mut builder = UprobeSkelBuilder::default();
|
||||
let picom_path = std::env::args().nth(1).unwrap();
|
||||
let data = std::fs::read(&picom_path).unwrap();
|
||||
let file = object::read::elf::ElfFile64::<'_, object::NativeEndian, _>::parse(&*data).unwrap();
|
||||
let header = file.raw_header();
|
||||
let sections = header.sections(object::NativeEndian, &*data).unwrap();
|
||||
let (dyanmic, dynamic_index) = sections.dynamic(object::NativeEndian, &*data).unwrap().unwrap();
|
||||
let strings = sections.strings(object::NativeEndian, &*data, dynamic_index).unwrap();
|
||||
let mut runpath = None;
|
||||
let mut libc_name = None;
|
||||
for d in dyanmic {
|
||||
if d.is_string(object::NativeEndian) {
|
||||
let s = d.string(object::NativeEndian, strings).unwrap();
|
||||
let tag = d.d_tag(object::NativeEndian);
|
||||
if tag == object::elf::DT_RUNPATH as u64 {
|
||||
runpath = Some(s.to_vec());
|
||||
}
|
||||
if tag == object::elf::DT_NEEDED as u64 && s.starts_with(b"libc.so") {
|
||||
libc_name = Some(s.to_vec())
|
||||
}
|
||||
eprintln!("{} {}", tag, String::from_utf8_lossy(s));
|
||||
}
|
||||
}
|
||||
let runpath = runpath.unwrap();
|
||||
let libc_name = libc_name.unwrap();
|
||||
let libc_name = std::ffi::OsStr::from_bytes(&libc_name);
|
||||
let mut libc_path = None;
|
||||
for p in runpath.split(|ch| *ch == b':') {
|
||||
let p = std::ffi::OsStr::from_bytes(p);
|
||||
let p = std::path::Path::new(p);
|
||||
let p = p.join(libc_name);
|
||||
if p.exists() {
|
||||
libc_path = Some(p);
|
||||
}
|
||||
}
|
||||
let libc_path = libc_path.unwrap();
|
||||
eprintln!("{}", libc_path.to_string_lossy());
|
||||
builder.obj_builder.debug(true);
|
||||
|
||||
let open_skel = builder.open().unwrap();
|
||||
let mut skel = open_skel.load().unwrap();
|
||||
let obj = skel.object_mut();
|
||||
let xcb_probe = obj.prog_mut("uprobe_xcb_conn").unwrap();
|
||||
let _link = xcb_probe.attach_uprobe_with_opts(-1, &picom_path, 0, UprobeOpts {
|
||||
retprobe: false,
|
||||
func_name: "xcb_connection_probe".to_string(),
|
||||
..Default::default()
|
||||
}).unwrap();
|
||||
let epoll_probe = obj.prog_mut("uprobe_epoll_wait").unwrap();
|
||||
let _link2 = epoll_probe.attach_uprobe_with_opts(-1, libc_path, 0, UprobeOpts {
|
||||
retprobe: false,
|
||||
func_name: "epoll_wait".to_string(),
|
||||
..Default::default()
|
||||
}).unwrap();
|
||||
std::thread::park();
|
||||
}
|
||||
Loading…
Reference in a new issue