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Add build script to extract a list of registered syscalls

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The list is used in cargo-build-bpf to check generated .so modules for
undefined symbols that are not known run-time syscalls.
This commit is contained in:
Dmitri Makarov
2021-06-12 19:54:44 -07:00
committed by Dmitri Makarov
parent 76bb403318
commit 32742df1b4
6 changed files with 51 additions and 26 deletions
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37
sdk/cargo-build-bpf/src/main.rs
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@ -250,32 +250,17 @@ fn postprocess_dump(program_dump: &Path) {
// Check whether the built .so file contains undefined symbols that are
// not known to the runtime and warn about them if any.
fn check_undefined_symbols(config: &Config, program: &Path) {
let syscalls: HashSet<String> = [
"abort",
"sol_panic_",
"sol_log_",
"sol_log_64_",
"sol_log_compute_units_",
"sol_log_pubkey",
"sol_create_program_address",
"sol_try_find_program_address",
"sol_sha256",
"sol_keccak256",
"sol_get_clock_sysvar",
"sol_get_epoch_schedule_sysvar",
"sol_get_fees_sysvar",
"sol_get_rent_sysvar",
"sol_memcpy_",
"sol_memmove_",
"sol_memcmp_",
"sol_memset_",
"sol_invoke_signed_c",
"sol_invoke_signed_rust",
"sol_alloc_free_",
]
.iter()
.map(|&symbol| symbol.to_owned())
.collect();
let syscalls_txt = config.bpf_sdk.join("syscalls.txt");
let file = match File::open(syscalls_txt) {
Ok(x) => x,
_ => return,
};
let mut syscalls = HashSet::new();
for line_result in BufReader::new(file).lines() {
let line = line_result.unwrap();
let line = line.trim_end();
syscalls.insert(line.to_string());
}
let entry =
Regex::new(r"^ *[0-9]+: [0-9a-f]{16} +[0-9a-f]+ +NOTYPE +GLOBAL +DEFAULT +UND +(.+)")
.unwrap();