Stack overflow transpiling

[hfiguiere]

I'm trying to transpile a single C file to Rust.

It ends with:

thread 'main' has overflowed its stack
fatal runtime error: stack overflow

The source file (Github force me to gzip)
dcraw.c.gz

The compile command:

[
  {
    "arguments": [
      "gcc",
      "-c",
      "-I/usr/lib/gcc/x86_64-redhat-linux/14/include",
      "-DNO_JASPER",
      "-DNO_JPEG",
      "-DNO_LCMS",
      "dcraw.c"
    ],
    "directory": "/var/home/hub/source/c2rust",
    "file": "/var/home/hub/source/libopenraw/dcraw/dcraw.c"
  }
]

Runing in gdb I get the following:

#0  0x00005555560383ce in __rust_probestack ()
#1  0x0000555555a3f3ca in c2rust_transpile::cfg::structures::StructureState::to_stmt (self=0x0, ast=..., comment_store=0x7ffffffea4b8)
    at c2rust-transpile/src/cfg/structures.rs:406
#2  0x0000555555a425cb in c2rust_transpile::cfg::structures::StructureState::to_stmt (self=0x7ffffffea4b8, ast=..., 
    comment_store=0x7fffffff94a8) at c2rust-transpile/src/cfg/structures.rs:432
#3  0x0000555555a423f3 in c2rust_transpile::cfg::structures::StructureState::to_stmt (self=0x7ffffffea4b8, ast=..., 
    comment_store=0x7fffffff94a8) at c2rust-transpile/src/cfg/structures.rs:450
#4  0x0000555555a423f3 in c2rust_transpile::cfg::structures::StructureState::to_stmt (self=0x7ffffffea4b8, ast=..., 
    comment_store=0x7fffffff94a8) at c2rust-transpile/src/cfg/structures.rs:450
#5  0x0000555555a423f3 in c2rust_transpile::cfg::structures::StructureState::to_stmt (self=0x7ffffffea4b8, ast=..., 
    comment_store=0x7fffffff94a8) at c2rust-transpile/src/cfg/structures.rs:450
#6  0x0000555555a42c51 in c2rust_transpile::cfg::structures::StructureState::to_stmt (self=0x7ffffffea4b8, ast=..., 
    comment_store=0x7fffffff94a8) at c2rust-transpile/src/cfg/structures.rs:456

[...]

#362 0x0000555555a42c51 in c2rust_transpile::cfg::structures::StructureState::to_stmt (self=0x7ffffffea4b8, ast=..., 
    comment_store=0x7fffffff94a8) at c2rust-transpile/src/cfg/structures.rs:456
#363 0x0000555555a42c51 in c2rust_transpile::cfg::structures::StructureState::to_stmt (self=0x7ffffffea4b8, ast=..., 
    comment_store=0x7fffffff94a8) at c2rust-transpile/src/cfg/structures.rs:456
#364 0x0000555555a42c51 in c2rust_transpile::cfg::structures::StructureState::to_stmt (self=0x7ffffffea4b8, ast=..., 
    comment_store=0x7fffffff94a8) at c2rust-transpile/src/cfg/structures.rs:456
#365 0x0000555555a42c51 in c2rust_transpile::cfg::structures::StructureState::to_stmt (self=0x7ffffffea4b8, ast=..., 
    comment_store=0x7fffffff94a8) at c2rust-transpile/src/cfg/structures.rs:456
#366 0x0000555555a3ec0e in c2rust_transpile::cfg::structures::structured_cfg (root=..., comment_store=0x7fffffff94a8, 
    current_block=0x555557156710, debug_labels=false, cut_out_trailing_ret=true) at c2rust-transpile/src/cfg/structures.rs:24
#367 0x000055555577779c in c2rust_transpile::translator::Translation::convert_cfg (self=0x7fffffff8e80, name=..., graph=..., store=..., 
    live_in=..., cut_out_trailing_ret=true) at c2rust-transpile/src/translator/mod.rs:2501
#368 0x0000555555a308f2 in c2rust_transpile::translator::{impl#4}::convert_function_body::{closure#0} ()
    at c2rust-transpile/src/translator/mod.rs:2521
#369 0x0000555555a39eca in c2rust_transpile::translator::Translation::with_scope<c2rust_transpile::translator::{impl#4}::convert_function_body::{closure_env#0}, core::result::Result<alloc::vec::Vec<syn::stmt::Stmt, alloc::alloc::Global>, c2rust_transpile::diagnostics::TranslationError>> (self=0x7fffffff8e80, f=...) at c2rust-transpile/src/translator/mod.rs:4805
#370 0x0000555555777b99 in c2rust_transpile::translator::Translation::convert_function_body (self=0x7fffffff8e80, ctx=..., name=..., 
    body_ids=..., ret=...) at c2rust-transpile/src/translator/mod.rs:2519
#371 0x0000555555a2f5ac in c2rust_transpile::translator::{impl#4}::convert_function::{closure#0} ()
    at c2rust-transpile/src/translator/mod.rs:2352
#372 0x0000555555a39c6a in c2rust_transpile::translator::Translation::with_scope<c2rust_transpile::translator::{impl#4}::convert_function::{closure_env#0}, core::result::Result<c2rust_transpile::translator::ConvertedDecl, c2rust_transpile::diagnostics::TranslationError>> (
    self=0x7fffffff8e80, f=...) at c2rust-transpile/src/translator/mod.rs:4805
#373 0x00005555557766a8 in c2rust_transpile::translator::Translation::convert_function (self=0x7fffffff8e80, ctx=..., span=..., 
    is_global=true, is_inline=false, is_main=false, is_variadic=false, is_extern=false, new_name=..., name=..., arguments=..., 
    return_type=..., body=..., attrs=0x55555f4a57d0) at c2rust-transpile/src/translator/mod.rs:2250
#374 0x0000555555775f6c in c2rust_transpile::translator::Translation::convert_decl (self=0x7fffffff8e80, ctx=..., decl_id=...)
    at c2rust-transpile/src/translator/mod.rs:1902
#375 0x00005555557634f3 in c2rust_transpile::translator::translate (ast_context=..., tcfg=0x7fffffffdbe0, main_file=...)
    at c2rust-transpile/src/translator/mod.rs:719
#376 0x0000555555675dac in c2rust_transpile::transpile_single (tcfg=0x7fffffffdbe0, input_path=..., ancestor_path=..., build_dir=..., 
    cc_db=..., extra_clang_args=...) at c2rust-transpile/src/lib.rs:536
#377 0x000055555580033f in c2rust_transpile::transpile::{closure#5} (cmd=0x555556411b00) at c2rust-transpile/src/lib.rs:328
#378 0x00005555558b024e in core::iter::adapters::map::map_fold::{closure#0}<&alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>, core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, (), c2rust_transpile::transpile::{closure_env#5}, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, alloc::vec::spec_extend::{impl#1}::spec_extend::{closure_env#0}<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}>, alloc::alloc::Global>>> (acc=(), elt=0x555556411b00)
    at /rustc/d394408fb38c4de61f765a3ed5189d2731a1da91/library/core/src/iter/adapters/map.rs:84
#379 0x00005555558bc445 in core::iter::traits::iterator::Iterator::fold<core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, (), core::iter::adapters::map::map_fold::{closure_env#0}<&alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>, core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, (), c2rust_transpile::transpile::{closure_env#5}, core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, alloc::vec::spec_extend::{impl#1}::spec_extend::{closure_env#0}<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}>, alloc::alloc::Global>>>> (self=..., init=(), f=...)
    at /rustc/d394408fb38c4de61f765a3ed5189d2731a1da91/library/core/src/iter/traits/iterator.rs:2414
#380 0x00005555558a05d4 in core::iter::adapters::map::{impl#2}::fold<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}, (), core::iter::traits::iterator::Iterator::for_each::call::{closure_env#0}<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, alloc::vec::spec_extend::{impl#1}::spec_extend::{closure_env#0}<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}>, alloc::alloc::Global>>> (self=..., init=(), g=...)
    at /rustc/d394408fb38c4de61f765a3ed5189d2731a1da91/library/core/src/iter/adapters/map.rs:124
#381 0x00005555558a651f in core::iter::traits::iterator::Iterator::for_each<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}>, alloc::vec::spec_extend::{impl#1}::spec_extend::{closure_env#0}<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}>, alloc::alloc::Global>> (self=..., f=...) at /rustc/d394408fb38c4de61f765a3ed5189d2731a1da91/library/core/src/iter/traits/iterator.rs:831
#382 0x00005555559d3e07 in alloc::vec::spec_extend::{impl#1}::spec_extend<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}>, alloc::alloc::Global> (self=0x7fffffffcaf8, iterator=...)
    at /rustc/d394408fb38c4de61f765a3ed5189d2731a1da91/library/alloc/src/vec/spec_extend.rs:40
#383 0x000055555598da59 in alloc::vec::spec_from_iter_nested::{impl#1}::from_iter<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}>> (iterator=...)
    at /rustc/d394408fb38c4de61f765a3ed5189d2731a1da91/library/alloc/src/vec/spec_from_iter_nested.rs:62
#384 0x00005555559d851d in alloc::vec::spec_from_iter::{impl#0}::from_iter<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}>> (iterator=...)
    at /rustc/d394408fb38c4de61f765a3ed5189d2731a1da91/library/alloc/src/vec/spec_from_iter.rs:33
#385 0x00005555559cdfa0 in alloc::vec::{impl#18}::from_iter<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::rc::Rc<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}>> (iter=...) at /rustc/d394408fb38c4de61f765a3ed5189d2731a1da91/library/alloc/src/vec/mod.rs:2648
#386 0x00005555558a5a5d in core::iter::traits::iterator::Iterator::collect<core::iter::adapters::map::Map<core::slice::iter::Iter<alloc::rc::R--Type <RET> for more, q to quit, c to continue without paging--
c<c2rust_transpile::compile_cmds::CompileCmd>>, c2rust_transpile::transpile::{closure_env#5}>, alloc::vec::Vec<core::result::Result<(std::path::PathBuf, alloc::vec::Vec<(&str, alloc::vec::Vec<&str, alloc::alloc::Global>), alloc::alloc::Global>, indexmap::set::IndexSet<c2rust_transpile::ExternCrate, std::collections::hash::map::RandomState>), ()>, alloc::alloc::Global>> (self=...)
    at /rustc/d394408fb38c4de61f765a3ed5189d2731a1da91/library/core/src/iter/traits/iterator.rs:1836
#387 0x000055555567324a in c2rust_transpile::transpile (tcfg=..., cc_db=..., extra_clang_args=...) at c2rust-transpile/src/lib.rs:325
#388 0x0000555555624ad1 in c2rust_transpile::main () at c2rust/src/bin/c2rust-transpile.rs:259

[fw-immunant]

This file does successfully transpile for me, so I don't think this is a case of infinite recursion, but could possibly be resolved by running ulimit -s unlimited before running c2rust transpile. That said, it might be possible for us to turn the recursion in StructureState::to_stmt into iteration somehow and avoid requiring so much stack space.