std: Switch from libbacktrace to gimli

[rust.git] / src / libstd / backtrace.rs

diff --git a/src/libstd/backtrace.rs b/src/libstd/backtrace.rs
index e10d466030f0b1abc135e1418373c8d08fc0ea40..e65775c1ced67909ad9d5e0954f946e78ffd55b5 100644 (file)
--- a/src/libstd/backtrace.rs
+++ b/src/libstd/backtrace.rs
@@ -91,6 +91,7 @@
 // `Backtrace`, but that's a relatively small price to pay relative to capturing
 // a backtrace or actually symbolizing it.
 
+use crate::backtrace_rs::{self, BytesOrWideString};
 use crate::env;
 use crate::ffi::c_void;
 use crate::fmt;
@@ -98,8 +99,6 @@
 use crate::sync::Mutex;
 use crate::sys_common::backtrace::{lock, output_filename};
 use crate::vec::Vec;
-use backtrace::BytesOrWideString;
-use backtrace_rs as backtrace;
 
 /// A captured OS thread stack backtrace.
 ///
@@ -150,7 +149,7 @@ struct BacktraceFrame {
 }
 
 enum RawFrame {
-    Actual(backtrace::Frame),
+    Actual(backtrace_rs::Frame),
     #[cfg(test)]
     Fake,
 }
@@ -197,7 +196,7 @@ impl fmt::Debug for BacktraceSymbol {
     fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
         write!(fmt, "{{ ")?;
 
-        if let Some(fn_name) = self.name.as_ref().map(|b| backtrace::SymbolName::new(b)) {
+        if let Some(fn_name) = self.name.as_ref().map(|b| backtrace_rs::SymbolName::new(b)) {
             write!(fmt, "fn: \"{:#}\"", fn_name)?;
         } else {
             write!(fmt, "fn: <unknown>")?;
@@ -223,7 +222,7 @@ fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
                 BytesOrWide::Bytes(w) => BytesOrWideString::Bytes(w),
                 BytesOrWide::Wide(w) => BytesOrWideString::Wide(w),
             },
-            backtrace::PrintFmt::Short,
+            backtrace_rs::PrintFmt::Short,
             crate::env::current_dir().as_ref().ok(),
         )
     }
@@ -299,7 +298,7 @@ fn create(ip: usize) -> Backtrace {
         let mut frames = Vec::new();
         let mut actual_start = None;
         unsafe {
-            backtrace::trace_unsynchronized(|frame| {
+            backtrace_rs::trace_unsynchronized(|frame| {
                 frames.push(BacktraceFrame {
                     frame: RawFrame::Actual(frame.clone()),
                     symbols: Vec::new(),
@@ -350,9 +349,9 @@ fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
 
         let full = fmt.alternate();
         let (frames, style) = if full {
-            (&capture.frames[..], backtrace::PrintFmt::Full)
+            (&capture.frames[..], backtrace_rs::PrintFmt::Full)
         } else {
-            (&capture.frames[capture.actual_start..], backtrace::PrintFmt::Short)
+            (&capture.frames[capture.actual_start..], backtrace_rs::PrintFmt::Short)
         };
 
         // When printing paths we try to strip the cwd if it exists, otherwise
@@ -364,7 +363,7 @@ fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
             output_filename(fmt, path, style, cwd.as_ref().ok())
         };
 
-        let mut f = backtrace::BacktraceFmt::new(fmt, style, &mut print_path);
+        let mut f = backtrace_rs::BacktraceFmt::new(fmt, style, &mut print_path);
         f.add_context()?;
         for frame in frames {
             let mut f = f.frame();
@@ -374,7 +373,7 @@ fn fmt(&self, fmt: &mut fmt::Formatter<'_>) -> fmt::Result {
                 for symbol in frame.symbols.iter() {
                     f.print_raw(
                         frame.frame.ip(),
-                        symbol.name.as_ref().map(|b| backtrace::SymbolName::new(b)),
+                        symbol.name.as_ref().map(|b| backtrace_rs::SymbolName::new(b)),
                         symbol.filename.as_ref().map(|b| match b {
                             BytesOrWide::Bytes(w) => BytesOrWideString::Bytes(w),
                             BytesOrWide::Wide(w) => BytesOrWideString::Wide(w),
@@ -409,7 +408,7 @@ fn resolve(&mut self) {
                 RawFrame::Fake => unimplemented!(),
             };
             unsafe {
-                backtrace::resolve_frame_unsynchronized(frame, |symbol| {
+                backtrace_rs::resolve_frame_unsynchronized(frame, |symbol| {
                     symbols.push(BacktraceSymbol {
                         name: symbol.name().map(|m| m.as_bytes().to_vec()),
                         filename: symbol.filename_raw().map(|b| match b {