Auto merge of #98100 - bjorn3:use_object_for_bitcode_reading, r=wesleywiser

Use object instead of LLVM for reading bitcode from rlibs

Together with changes I plan to make as part of https://github.com/rust-lang/rust/pull/97485 this will allow entirely removing usage of LLVM's archive reader and thus allow removing `archive_ro.rs` and `ArchiveWrapper.cpp`.

2 files changed, 0 insertions, 12 deletions

diff --git a/compiler/rustc_codegen_llvm/src/llvm/archive_ro.rs b/compiler/rustc_codegen_llvm/src/llvm/archive_ro.rs
index 64db4f7462d..7d948970223 100644
--- a/compiler/rustc_codegen_llvm/src/llvm/archive_ro.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/archive_ro.rs
@@ -83,17 +83,6 @@ impl<'a> Child<'a> {
             }
         }
     }
-
-    pub fn data(&self) -> &'a [u8] {
-        unsafe {
-            let mut data_len = 0;
-            let data_ptr = super::LLVMRustArchiveChildData(self.raw, &mut data_len);
-            if data_ptr.is_null() {
-                panic!("failed to read data from archive child");
-            }
-            slice::from_raw_parts(data_ptr as *const u8, data_len as usize)
-        }
-    }
 }
 
 impl<'a> Drop for Child<'a> {
diff --git a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
index 4ca3dd78cae..172684414fc 100644
--- a/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
+++ b/compiler/rustc_codegen_llvm/src/llvm/ffi.rs
@@ -2389,7 +2389,6 @@ extern "C" {
         AIR: &ArchiveIterator<'a>,
     ) -> Option<&'a mut ArchiveChild<'a>>;
     pub fn LLVMRustArchiveChildName(ACR: &ArchiveChild<'_>, size: &mut size_t) -> *const c_char;
-    pub fn LLVMRustArchiveChildData(ACR: &ArchiveChild<'_>, size: &mut size_t) -> *const c_char;
     pub fn LLVMRustArchiveChildFree<'a>(ACR: &'a mut ArchiveChild<'a>);
     pub fn LLVMRustArchiveIteratorFree<'a>(AIR: &'a mut ArchiveIterator<'a>);
     pub fn LLVMRustDestroyArchive(AR: &'static mut Archive);