Merge of #679 - Fix CI for lints and migrations

This doesn't fix #678 but will hopefully get CI passing again.

Longer term, I would like to change our dbghelp library loading to be less eek.

.github/workflows/main.yml

@@ -92,7 +92,7 @@ jobs:
         if: contains(matrix.os, 'ubuntu')
         env:
           RUSTFLAGS: "-C link-arg=-Wl,--compress-debug-sections=zlib"
-      - run: cargo test
+      - run: cargo test --features "ruzstd"
         if: contains(matrix.os, 'ubuntu-24.04') ||
             (contains(matrix.os, 'ubuntu') && contains(matrix.rust, 'nightly'))
         env:
@@ -235,7 +235,7 @@ jobs:
       matrix:
         target:
           - wasm32-unknown-unknown
-          - wasm32-wasi
+          - wasm32-wasip1
           - x86_64-unknown-fuchsia
           - x86_64-fortanix-unknown-sgx
           - x86_64-unknown-illumos

Cargo.toml

@@ -43,7 +43,7 @@ windows-targets = "0.52.6"
 
 [target.'cfg(not(all(windows, target_env = "msvc", not(target_vendor = "uwp"))))'.dependencies]
 miniz_oxide = { version = "0.8", default-features = false }
-ruzstd = { version = "0.7.2", default-features = false }
+ruzstd = { version = "0.7.3", default-features = false, optional = true }
 addr2line = { version = "0.24.0", default-features = false }
 libc = { version = "0.2.156", default-features = false }
 
@@ -65,6 +65,8 @@ std = []
 
 serialize-serde = ["serde"]
 
+ruzstd = ["dep:ruzstd"]
+
 #=======================================
 # Deprecated/internal features
 #

src/dbghelp.rs

@@ -111,6 +111,8 @@ macro_rules! dbghelp {
         #[allow(dead_code)]
         impl Init {
             $(pub fn $name(&self) -> $name {
+                // FIXME: https://github.com/rust-lang/backtrace-rs/issues/678
+                #[allow(static_mut_refs)]
                 unsafe {
                     DBGHELP.$name().unwrap()
                 }
@@ -318,24 +320,26 @@ pub fn init() -> Result<Init, ()> {
         // functions in it, and that's detailed more below. We only do this
         // once, though, so we've got a global boolean indicating whether we're
         // done yet or not.
+        // FIXME: https://github.com/rust-lang/backtrace-rs/issues/678
+        #[allow(static_mut_refs)]
         DBGHELP.ensure_open()?;
 
         static mut INITIALIZED: bool = false;
         if !INITIALIZED {
-            set_optional_options();
+            set_optional_options(ret.dbghelp());
             INITIALIZED = true;
         }
         Ok(ret)
     }
 }
-fn set_optional_options() -> Option<()> {
+unsafe fn set_optional_options(dbghelp: *mut Dbghelp) -> Option<()> {
     unsafe {
-        let orig = DBGHELP.SymGetOptions()?();
+        let orig = (*dbghelp).SymGetOptions()?();
 
         // Ensure that the `SYMOPT_DEFERRED_LOADS` flag is set, because
         // according to MSVC's own docs about this: "This is the fastest, most
         // efficient way to use the symbol handler.", so let's do that!
-        DBGHELP.SymSetOptions()?(orig | SYMOPT_DEFERRED_LOADS);
+        (*dbghelp).SymSetOptions()?(orig | SYMOPT_DEFERRED_LOADS);
 
         // Actually initialize symbols with MSVC. Note that this can fail, but we
         // ignore it. There's not a ton of prior art for this per se, but LLVM
@@ -349,7 +353,7 @@ fn set_optional_options() -> Option<()> {
         // the time, but now that it's using this crate it means that someone will
         // get to initialization first and the other will pick up that
         // initialization.
-        DBGHELP.SymInitializeW()?(GetCurrentProcess(), ptr::null_mut(), TRUE);
+        (*dbghelp).SymInitializeW()?(GetCurrentProcess(), ptr::null_mut(), TRUE);
 
         // The default search path for dbghelp will only look in the current working
         // directory and (possibly) `_NT_SYMBOL_PATH` and `_NT_ALT_SYMBOL_PATH`.
@@ -363,7 +367,7 @@ fn set_optional_options() -> Option<()> {
         search_path_buf.resize(1024, 0);
 
         // Prefill the buffer with the current search path.
-        if DBGHELP.SymGetSearchPathW()?(
+        if (*dbghelp).SymGetSearchPathW()?(
             GetCurrentProcess(),
             search_path_buf.as_mut_ptr(),
             search_path_buf.len() as _,
@@ -383,7 +387,7 @@ fn set_optional_options() -> Option<()> {
         let mut search_path = SearchPath::new(search_path_buf);
 
         // Update the search path to include the directory of the executable and each DLL.
-        DBGHELP.EnumerateLoadedModulesW64()?(
+        (*dbghelp).EnumerateLoadedModulesW64()?(
             GetCurrentProcess(),
             Some(enum_loaded_modules_callback),
             ((&mut search_path) as *mut SearchPath) as *mut c_void,
@@ -392,7 +396,7 @@ fn set_optional_options() -> Option<()> {
         let new_search_path = search_path.finalize();
 
         // Set the new search path.
-        DBGHELP.SymSetSearchPathW()?(GetCurrentProcess(), new_search_path.as_ptr());
+        (*dbghelp).SymSetSearchPathW()?(GetCurrentProcess(), new_search_path.as_ptr());
     }
     Some(())
 }

src/symbolize/gimli.rs

@@ -363,6 +363,8 @@ impl Cache {
         // never happen, and symbolicating backtraces would be ssssllllooooowwww.
         static mut MAPPINGS_CACHE: Option<Cache> = None;
 
+        // FIXME: https://github.com/rust-lang/backtrace-rs/issues/678
+        #[allow(static_mut_refs)]
         f(MAPPINGS_CACHE.get_or_insert_with(Cache::new))
     }
 

src/symbolize/gimli/elf.rs

@@ -9,9 +9,9 @@ use super::{gimli, Context, Endian, EndianSlice, Mapping, Stash, Vec};
 use alloc::sync::Arc;
 use core::convert::{TryFrom, TryInto};
 use core::str;
-use object::elf::{
-    ELFCOMPRESS_ZLIB, ELFCOMPRESS_ZSTD, ELF_NOTE_GNU, NT_GNU_BUILD_ID, SHF_COMPRESSED,
-};
+#[cfg(feature = "ruzstd")]
+use object::elf::ELFCOMPRESS_ZSTD;
+use object::elf::{ELFCOMPRESS_ZLIB, ELF_NOTE_GNU, NT_GNU_BUILD_ID, SHF_COMPRESSED};
 use object::read::elf::{CompressionHeader, FileHeader, SectionHeader, SectionTable, Sym};
 use object::read::StringTable;
 use object::{BigEndian, Bytes, NativeEndian};
@@ -231,6 +231,7 @@ impl<'a> Object<'a> {
                     decompress_zlib(data.0, buf)?;
                     return Some(buf);
                 }
+                #[cfg(feature = "ruzstd")]
                 ELFCOMPRESS_ZSTD => {
                     let size = usize::try_from(header.ch_size(self.endian)).ok()?;
                     let buf = stash.allocate(size);
@@ -357,6 +358,7 @@ fn decompress_zlib(input: &[u8], output: &mut [u8]) -> Option<()> {
     }
 }
 
+#[cfg(feature = "ruzstd")]
 fn decompress_zstd(mut input: &[u8], mut output: &mut [u8]) -> Option<()> {
     use ruzstd::frame::ReadFrameHeaderError;
     use ruzstd::frame_decoder::FrameDecoderError;