On Thu, 2016-11-03 at 18:39 +0100, Mark Wielaard wrote:
> Adds Rust symbol demangler. Rust mangles symbols using GNU_V3 style,
> adding a hash and various special character subtitutions. This adds
> a new rust style to cplus_demangle and adds 3 helper functions
> rust_demangle, rust_demangle_sym and rust_is_mangled.
>
> rust-demangle.c was written by David. Mark did the code formatting to
> GNU style and integration into the gcc/libiberty build system and
> testsuite.
>
> The original code was written for the perf tool. David agreed with
> submitting it for gcc/libiberty so binutils, gdb, valgrind, etc.
> can also easily reuse it. He has sent request-assign to ass...@gnu.org.
> I already have write after approval for gcc.
Ping.
Any comments are welcome. A variant of this is being used already in
perf and valgrind. It would be nice to make it part of upstream
libiberty.
I did also apply this patch to binutils-gdb/libiberty and with a
oneliner patch (*) it allows c++filt to handle rust mangled symbols and
accept --format=rust (and displays it with --help).
I did not yet test gdb, which would need a similar small tweak to its
current language settings. Any feedback on whether it also works as
expected with gdb appreciated.
Thanks,
Mark
(*)
diff --git a/binutils/cxxfilt.c b/binutils/cxxfilt.c
index d5863ee..7cf9458 100644
--- a/binutils/cxxfilt.c
+++ b/binutils/cxxfilt.c
@@ -242,6 +242,7 @@ main (int argc, char **argv)
case gnu_v3_demangling:
case dlang_demangling:
case auto_demangling:
+ case rust_demangling:
valid_symbols = standard_symbol_characters ();
break;
case hp_demangling:
