Update object to 0.36 (#8733)

* Update object to 0.36

* Update exemptions for the `object` crate

---------

Co-authored-by: Alex Crichton <[email protected]>

Cargo.toml

@@ -265,7 +265,7 @@ wit-component = "0.209.1"
 # Non-Bytecode Alliance maintained dependencies:
 # --------------------------
 cc = "1.0"
-object = { version = "0.33", default-features = false, features = ['read_core', 'elf'] }
+object = { version = "0.36", default-features = false, features = ['read_core', 'elf'] }
 gimli = { version = "0.28.0", default-features = false, features = ['read'] }
 addr2line = { version = "0.21.0", default-features = false }
 anyhow = { version = "1.0.22", default-features = false }

cranelift/object/src/backend.rs

@@ -154,6 +154,7 @@ impl ObjectModule {
     pub fn new(builder: ObjectBuilder) -> Self {
         let mut object = Object::new(builder.binary_format, builder.architecture, builder.endian);
         object.flags = builder.flags;
+        object.set_subsections_via_symbols();
         object.add_file_symbol(builder.name);
         Self {
             isa: builder.isa,
@@ -368,19 +369,14 @@ impl Module for ObjectModule {
         let align = alignment
             .max(self.isa.function_alignment().minimum.into())
             .max(self.isa.symbol_alignment());
-        let (section, offset) = if self.per_function_section {
+        let section = if self.per_function_section {
             let symbol_name = self.object.symbol(symbol).name.clone();
-            let (section, offset) =
-                self.object
-                    .add_subsection(StandardSection::Text, &symbol_name, bytes, align);
-            self.object.symbol_mut(symbol).section = SymbolSection::Section(section);
-            self.object.symbol_mut(symbol).value = offset;
-            (section, offset)
+            self.object
+                .add_subsection(StandardSection::Text, &symbol_name)
         } else {
-            let section = self.object.section_id(StandardSection::Text);
-            let offset = self.object.add_symbol_data(symbol, section, bytes, align);
-            (section, offset)
+            self.object.section_id(StandardSection::Text)
         };
+        let offset = self.object.add_symbol_data(symbol, section, bytes, align);
 
         if !relocs.is_empty() {
             let relocs = relocs

crates/wasmtime/src/runtime/debug.rs

@@ -127,7 +127,7 @@ fn convert_object_elf_to_loadable_file<E: Endian>(
     let text_range = match sections.section_by_name(e, b".text") {
         Some((i, text)) => {
             let range = text.file_range(e);
-            let off = header.e_shoff.get(e) as usize + i * header.e_shentsize.get(e) as usize;
+            let off = header.e_shoff.get(e) as usize + i.0 * header.e_shentsize.get(e) as usize;
 
             let section: &mut SectionHeader64<E> =
                 object::from_bytes_mut(&mut bytes[off..]).unwrap().0;

examples/min-platform/src/main.rs

@@ -10,7 +10,7 @@ fn main() -> Result<()> {
 fn main() -> Result<()> {
     use anyhow::{anyhow, Context};
     use libloading::os::unix::{Library, Symbol, RTLD_GLOBAL, RTLD_NOW};
-    use object::{Object, ObjectSymbol, SymbolKind};
+    use object::{Object, ObjectSymbol};
     use std::io::Write;
     use wasmtime::{Config, Engine};
 
@@ -44,7 +44,7 @@ fn main() -> Result<()> {
     // running `libembedding.so` in this case requires only minimal
     // dependencies.
     for sym in object.symbols() {
-        if !sym.is_undefined() || sym.is_weak() || sym.kind() == SymbolKind::Null {
+        if !sym.is_undefined() || sym.is_weak() {
             continue;
         }
 

supply-chain/config.toml

@@ -405,7 +405,11 @@ version = "0.3.0"
 criteria = "safe-to-deploy"
 
 [[exemptions.object]]
-version = "0.29.0"
+version = "0.32.0"
+criteria = "safe-to-deploy"
+
+[[exemptions.object]]
+version = "0.36.0"
 criteria = "safe-to-deploy"
 
 [[exemptions.ocaml-boxroot-sys]]