Files
wasmtime/tests/all/debug/translate.rs
Chris Fallin 557a932757 Fix GitHub Actions config (actually run gdb tests on new backend).
I had missed that the CI config didn't actually run the tests, because
(I think) `matrix.target` is not set by default (?). All of our hosts
are native x86-64, so we can just gate on OS (Ubuntu) instead.

I also discovered that while I had been testing with the gdb tests
locally, when *all* `debug::*` tests are run, there are two that do not
pass on the new backend because of specific differences in compiled
code. One is a value-lifetime issue (the value is "optimized out" at the
point the breakpoint is set) and the other has to do with basic-block
order (it is trying to match against hardcoded machine-code offsets
which have changed).
2021-01-22 16:42:40 -08:00

135 lines
4.1 KiB
Rust

use super::dump::{get_dwarfdump, DwarfDumpSection};
use super::obj::compile_cranelift;
use anyhow::{format_err, Result};
use filecheck::{CheckerBuilder, NO_VARIABLES};
use std::fs::read;
use tempfile::NamedTempFile;
#[allow(dead_code)]
fn check_wasm(wasm_path: &str, directives: &str) -> Result<()> {
let wasm = read(wasm_path)?;
let obj_file = NamedTempFile::new()?;
let obj_path = obj_file.path().to_str().unwrap();
compile_cranelift(&wasm, None, obj_path)?;
let dump = get_dwarfdump(obj_path, DwarfDumpSection::DebugInfo)?;
let mut builder = CheckerBuilder::new();
builder
.text(directives)
.map_err(|e| format_err!("unable to build checker: {:?}", e))?;
let checker = builder.finish();
let check = checker
.explain(&dump, NO_VARIABLES)
.map_err(|e| format_err!("{:?}", e))?;
assert!(check.0, "didn't pass check {}", check.1);
Ok(())
}
#[allow(dead_code)]
fn check_line_program(wasm_path: &str, directives: &str) -> Result<()> {
let wasm = read(wasm_path)?;
let obj_file = NamedTempFile::new()?;
let obj_path = obj_file.path().to_str().unwrap();
compile_cranelift(&wasm, None, obj_path)?;
let dump = get_dwarfdump(obj_path, DwarfDumpSection::DebugLine)?;
let mut builder = CheckerBuilder::new();
builder
.text(directives)
.map_err(|e| format_err!("unable to build checker: {:?}", e))?;
let checker = builder.finish();
let check = checker
.explain(&dump, NO_VARIABLES)
.map_err(|e| format_err!("{:?}", e))?;
assert!(check.0, "didn't pass check {}", check.1);
Ok(())
}
#[test]
#[ignore]
#[cfg(all(
any(target_os = "linux", target_os = "macos"),
target_pointer_width = "64"
))]
fn test_debug_dwarf_translate() -> Result<()> {
check_wasm(
"tests/all/debug/testsuite/fib-wasm.wasm",
r##"
check: DW_TAG_compile_unit
# We have "fib" function
check: DW_TAG_subprogram
check: DW_AT_name ("fib")
# Accepts one parameter
check: DW_TAG_formal_parameter
check: DW_AT_name ("n")
check: DW_AT_decl_line (8)
# Has four locals: t, a, b, i
check: DW_TAG_variable
check: DW_AT_name ("t")
check: DW_AT_decl_line (9)
check: DW_TAG_variable
check: DW_AT_name ("a")
check: DW_TAG_variable
check: DW_AT_name ("b")
check: DW_TAG_variable
check: DW_AT_name ("i")
check: DW_AT_decl_line (10)
"##,
)
}
#[test]
#[ignore]
#[cfg(all(
any(target_os = "linux", target_os = "macos"),
target_pointer_width = "64"
))]
fn test_debug_dwarf5_translate() -> Result<()> {
check_wasm(
"tests/all/debug/testsuite/fib-wasm-dwarf5.wasm",
r##"
check: DW_TAG_compile_unit
# We have "fib" function
check: DW_TAG_subprogram
check: DW_AT_name ("fib")
# Accepts one parameter
check: DW_TAG_formal_parameter
check: DW_AT_name ("n")
check: DW_AT_decl_line (8)
# Has four locals: t, a, b, i
check: DW_TAG_variable
check: DW_AT_name ("t")
check: DW_AT_decl_line (9)
check: DW_TAG_variable
check: DW_AT_name ("a")
check: DW_TAG_variable
check: DW_AT_name ("b")
check: DW_TAG_variable
check: DW_AT_name ("i")
check: DW_AT_decl_line (10)
"##,
)
}
#[test]
#[ignore]
#[cfg(all(
any(target_os = "linux", target_os = "macos"),
target_arch = "x86_64",
target_pointer_width = "64",
// Ignore test on new backend. This is a specific test with hardcoded
// offsets and the new backend compiles the return basic-block at a different
// offset, causing mismatches.
not(feature = "experimental_x64"),
))]
fn test_debug_dwarf5_translate_lines() -> Result<()> {
check_line_program(
"tests/all/debug/testsuite/fib-wasm-dwarf5.wasm",
r##"
check: Address Line Column File ISA Discriminator Flags
check: 0x000000000000013c 15 3 1 0 0
# The important point is that the following offset must be _after_ the `ret` instruction.
# FIXME: this +1 increment might vary on other archs.
nextln: 0x000000000000013d 15 3 1 0 0 end_sequence
"##,
)
}