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#[naked] function emits no DWARF info

A-debuginfoArea: Debugging information in compiled programs (DWARF, PDB, etc.)Area: Debugging information in compiled programs (DWARF, PDB, etc.)

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-bugCategory: This is a bug.Category: This is a bug.

needs-triageThis issue may need triage. Remove it if it has been sufficiently triaged.This issue may need triage. Remove it if it has been sufficiently triaged.

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#152456 In rust-lang/rust;

· joshuaseaton opened on Feb 10, 2026

unsafe(naked) functions might not be called via a thunk

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-bugCategory: This is a bug.Category: This is a bug.

llvm-fixed-upstreamIssue expected to be fixed by the next major LLVM upgrade, or backported fixesIssue expected to be fixed by the next major LLVM upgrade, or backported fixes

O-ArmTarget: 32-bit Arm processors (armv6, armv7, thumb...), including 64-bit Arm in AArch32 stateTarget: 32-bit Arm processors (armv6, armv7, thumb...), including 64-bit Arm in AArch32 state

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#151946 In rust-lang/rust;

· thejpster opened on Feb 1, 2026

[ICE]: Segfault when compiling naked_asm fn with unclosed .cfi_startproc and symbol item

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

A-LLVMArea: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.Area: Code generation parts specific to LLVM. Both correctness bugs and optimization-related issues.

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-bugCategory: This is a bug.Category: This is a bug.

I-crashIssue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.Issue: The compiler crashes (SIGSEGV, SIGABRT, etc). Use I-ICE instead when the compiler panics.

S-waiting-on-LLVMStatus: the compiler-dragon is eepy, can someone get it some tea?Status: the compiler-dragon is eepy, can someone get it some tea?

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#151608 In rust-lang/rust;

· hsanzg opened on Jan 24, 2026

Tracking Issue for <code>c_variadic_naked_functions</code>

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

F-c_variadic`#![feature(c_variadic)]``#![feature(c_variadic)]`

Status: Open.

#148767 In rust-lang/rust;

· folkertdev opened on Nov 9, 2025

Each naked function creates separate PE code section

A-linkageArea: linking into static, shared libraries and binariesArea: linking into static, shared libraries and binaries

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-bugCategory: This is a bug.Category: This is a bug.

O-windowsOperating system: WindowsOperating system: Windows

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#147789 In rust-lang/rust;

· MauriceKayser opened on Oct 16, 2025

<code>naked_asm!</code> does not accept assembly syntax that is accepted by <code>asm!</code>

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-bugCategory: This is a bug.Category: This is a bug.

F-naked_functions`#![feature(naked_functions)]``#![feature(naked_functions)]`

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

T-libsRelevant to the library team, which will review and decide on the PR/issue.Relevant to the library team, which will review and decide on the PR/issue.

Status: Open.

#147267 In rust-lang/rust;

· Fulgen301 opened on Oct 2, 2025

Line number information missing for new naked-asm implementation

A-debuginfoArea: Debugging information in compiled programs (DWARF, PDB, etc.)Area: Debugging information in compiled programs (DWARF, PDB, etc.)

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-bugCategory: This is a bug.Category: This is a bug.

E-needs-bisectionCall for participation: This issue needs bisection: https://github.com/rust-lang/cargo-bisect-rustcCall for participation: This issue needs bisection: https://github.com/rust-lang/cargo-bisect-rustc

F-naked_functions`#![feature(naked_functions)]``#![feature(naked_functions)]`

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

Status: Open.

#146736 In rust-lang/rust;

· cbiffle opened on Sep 18, 2025

Tracking Issue for <code>abi_custom</code>

A-ABIArea: Concerning the application binary interface (ABI)Area: Concerning the application binary interface (ABI)

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#140829 In rust-lang/rust;

· folkertdev opened on May 8, 2025

Tracking Issue for <code>naked_functions_target_rustic_abi</code>

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

F-naked_functions`#![feature(naked_functions)]``#![feature(naked_functions)]`

Status: Open.

#138997 In rust-lang/rust;

· folkertdev opened on Mar 26, 2025

Tracking Issue for <code>naked_functions_target_feature</code>

A-attributesArea: Attributes (`#[…]`, `#![…]`)Area: Attributes (`#[…]`, `#![…]`)

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

A-target-featureArea: Enabling/disabling target features like AVX, Neon, etc.Area: Enabling/disabling target features like AVX, Neon, etc.

B-unstableBlocker: Implemented in the nightly compiler and unstable.Blocker: Implemented in the nightly compiler and unstable.

C-tracking-issueCategory: An issue tracking the progress of sth. like the implementation of an RFCCategory: An issue tracking the progress of sth. like the implementation of an RFC

F-naked_functions`#![feature(naked_functions)]``#![feature(naked_functions)]`

F-naked_functions_target_feature`#![feature(naked_functions_target_feature)]``#![feature(naked_functions_target_feature)]`

T-compilerRelevant to the compiler team, which will review and decide on the PR/issue.Relevant to the compiler team, which will review and decide on the PR/issue.

T-langRelevant to the language teamRelevant to the language team

Status: Open.

#138568 In rust-lang/rust;

· folkertdev opened on Mar 16, 2025

<code>#[target_feature(..)]</code> no longer in effect in naked functions

A-inline-assemblyArea: Inline assembly (`asm!(…)`)Area: Inline assembly (`asm!(…)`)

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-bugCategory: This is a bug.Category: This is a bug.

F-naked_functions`#![feature(naked_functions)]``#![feature(naked_functions)]`

Status: Open.

#136280 In rust-lang/rust;

· tmiasko opened on Jan 30, 2025

Naked functions don't produce an active frame for asm! .seh_* directives on Windows

A-nakedArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzSArea: `#[naked]`, prologue and epilogue-free, functions, https://git.io/vAzzS

C-bugCategory: This is a bug.Category: This is a bug.

F-asm`#![feature(asm)]` (not `llvm_asm`)`#![feature(asm)]` (not `llvm_asm`)

O-windowsOperating system: WindowsOperating system: Windows

requires-nightlyThis issue requires a nightly compiler in some way. When possible, use a F-* label instead.This issue requires a nightly compiler in some way. When possible, use a F-* label instead.

Status: Open.

#75897 In rust-lang/rust;

· bkolobara opened on Aug 25, 2020