continuwuity/src/core/debug.rs
Jason Volk c05f00661b use extern namespace in log wrapper macros
convert use tracing statements

Signed-off-by: Jason Volk <jason@zemos.net>
2024-06-30 18:02:16 +00:00

81 lines
2.1 KiB
Rust

#![allow(dead_code)] // this is a developer's toolbox
use std::panic;
/// Export all of the ancillary tools from here as well.
pub use crate::utils::debug::*;
/// Log event at given level in debug-mode (when debug-assertions are enabled).
/// In release-mode it becomes DEBUG level, and possibly subject to elision.
///
/// Release-mode can be simulated in debug-mode builds by enabling the feature
/// 'dev_release_log_level'.
#[macro_export]
macro_rules! debug_event {
( $level:expr, $($x:tt)+ ) => {
if cfg!(debug_assertions) && cfg!(not(feature = "dev_release_log_level")) {
::tracing::event!( $level, $($x)+ );
} else {
::tracing::debug!( $($x)+ );
}
}
}
/// Log message at the ERROR level in debug-mode (when debug-assertions are
/// enabled). In release-mode it becomes DEBUG level, and possibly subject to
/// elision.
#[macro_export]
macro_rules! debug_error {
( $($x:tt)+ ) => {
$crate::debug_event!(::tracing::Level::ERROR, $($x)+ );
}
}
/// Log message at the WARN level in debug-mode (when debug-assertions are
/// enabled). In release-mode it becomes DEBUG level, and possibly subject to
/// elision.
#[macro_export]
macro_rules! debug_warn {
( $($x:tt)+ ) => {
$crate::debug_event!(::tracing::Level::WARN, $($x)+ );
}
}
/// Log message at the INFO level in debug-mode (when debug-assertions are
/// enabled). In release-mode it becomes DEBUG level, and possibly subject to
/// elision.
#[macro_export]
macro_rules! debug_info {
( $($x:tt)+ ) => {
$crate::debug_event!(::tracing::Level::INFO, $($x)+ );
}
}
pub fn set_panic_trap() {
let next = panic::take_hook();
panic::set_hook(Box::new(move |info| {
panic_handler(info, &next);
}));
}
#[inline(always)]
#[allow(deprecated_in_future)]
fn panic_handler(info: &panic::PanicInfo<'_>, next: &dyn Fn(&panic::PanicInfo<'_>)) {
trap();
next(info);
}
#[inline(always)]
pub fn trap() {
#[cfg(core_intrinsics)]
//SAFETY: embeds llvm intrinsic for hardware breakpoint
unsafe {
std::intrinsics::breakpoint();
}
#[cfg(all(not(core_intrinsics), target_arch = "x86_64"))]
//SAFETY: embeds instruction for hardware breakpoint
unsafe {
std::arch::asm!("int3");
}
}