memcheck/tests/demangle-rust.c

   1 // Valgrind supports demangling Rust symbols (both the "v0" and "legacy"
   2 // mangling schemes), but we don't want to add a dependency on the Rust
   3 // compiler for a single test. So this is a C program with function names that
   4 // are mangled Rust symbols. In the output, they become demangled Rust names.
   5 // It's a hack, but a useful one.
   6
   7 #include <stdlib.h>
   8
   9 // A v0 symbol that demangles to: <rustc_middle::ty::PredicateKind as rustc_middle::ty::fold::TypeFoldable>::fold_with::<rustc_infer::infer::resolve::OpportunisticVarResolver>
  10 int _RINvYNtNtCs4uGc65yWeeX_12rustc_middle2ty13PredicateKindNtNtB5_4fold12TypeFoldable9fold_withNtNtNtCsgI90OQiJWEs_11rustc_infer5infer7resolve24OpportunisticVarResolverECsdozMG8X9FIu_21rustc_trait_selection(int *p)
  11 {
  12    free(p);
  13    free(p);
  14    return 1;
  15 }
  16
  17 // A v0 symbol that demangles to: rustc_expand::mbe::macro_parser::parse_tt
  18 int _RNvNtNtCsaqSe1lZGvEL_12rustc_expand3mbe12macro_parser8parse_tt(int* p)
  19 {
  20    return _RINvYNtNtCs4uGc65yWeeX_12rustc_middle2ty13PredicateKindNtNtB5_4fold12TypeFoldable9fold_withNtNtNtCsgI90OQiJWEs_11rustc_infer5infer7resolve24OpportunisticVarResolverECsdozMG8X9FIu_21rustc_trait_selection(p);
  21 }
  22
  23 // A legacy symbol that demangles to: core::str::lossy::Utf8Lossy::from_bytes
  24 int _ZN4core3str5lossy9Utf8Lossy10from_bytes17heb1677c8cb728b0bE(int* p)
  25 {
  26    return _RNvNtNtCsaqSe1lZGvEL_12rustc_expand3mbe12macro_parser8parse_tt(p);
  27 }
  28
  29 int main(void)
  30 {
  31    return _ZN4core3str5lossy9Utf8Lossy10from_bytes17heb1677c8cb728b0bE(malloc(sizeof(int)));
  32 }
  33