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Migrate most of wasmtime from lazy_static to once_cell (#4368)

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* Update tracing-core to a version which doesn't depend on lazy-static.

* Update crossbeam-utils to a version that doesn't depend on lazy-static.

* Update crossbeam-epoch to a version that doesn't depend on lazy-static.

* Update clap to a version that doesn't depend on lazy-static.

* Convert Wasmtime's own use of lazy_static to once_cell.

* Make `GDB_REGISTRATION`'s comment a doc comment.

* Fix compilation on Windows.
This commit is contained in:
Dan Gohman
2022-07-05 10:52:48 -07:00
committed by GitHub
parent d9e0e6a6a9
commit 371ae80ac3
25 changed files with 123 additions and 138 deletions
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18
crates/jit-debug/src/gdb_jit_int.rs
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@@ -2,7 +2,7 @@
//! the __jit_debug_register_code() and __jit_debug_descriptor to register
//! or unregister generated object images with debuggers.
use lazy_static::lazy_static;
use once_cell::sync::Lazy;
use std::pin::Pin;
use std::ptr;
use std::sync::Mutex;
@@ -32,15 +32,13 @@ extern "C" {
fn __jit_debug_register_code();
}
lazy_static! {
// The process controls access to the __jit_debug_descriptor by itself --
// the GDB/LLDB accesses this structure and its data at the process startup
// and when paused in __jit_debug_register_code.
//
// The GDB_REGISTRATION lock is needed for GdbJitImageRegistration to protect
// access to the __jit_debug_descriptor within this process.
pub static ref GDB_REGISTRATION: Mutex<()> = Mutex::new(Default::default());
}
/// The process controls access to the __jit_debug_descriptor by itself --
/// the GDB/LLDB accesses this structure and its data at the process startup
/// and when paused in __jit_debug_register_code.
///
/// The GDB_REGISTRATION lock is needed for GdbJitImageRegistration to protect
/// access to the __jit_debug_descriptor within this process.
static GDB_REGISTRATION: Lazy<Mutex<()>> = Lazy::new(|| Mutex::new(Default::default()));
/// Registeration for JIT image
pub struct GdbJitImageRegistration {