Commit 99115db4 authored by Miguel Ojeda's avatar Miguel Ojeda
Browse files

scripts: decode_stacktrace: demangle Rust symbols 



Recent versions of both Binutils (`c++filt`) and LLVM (`llvm-cxxfilt`)
provide Rust v0 mangling support.

Reviewed-by: default avatarKees Cook <keescook@chromium.org>
Reviewed-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
Co-developed-by: default avatarAlex Gaynor <alex.gaynor@gmail.com>
Signed-off-by: default avatarAlex Gaynor <alex.gaynor@gmail.com>
Co-developed-by: default avatarWedson Almeida Filho <wedsonaf@google.com>
Signed-off-by: default avatarWedson Almeida Filho <wedsonaf@google.com>
Signed-off-by: default avatarMiguel Ojeda <ojeda@kernel.org>
parent d1d84b5f

scripts/decode_stacktrace.sh

+14 −0
Original line number Diff line number Diff line
@@ -8,6 +8,14 @@ usage() { 
	echo "	$0 -r <release> | <vmlinux> [<base path>|auto] [<modules path>]"

}



# Try to find a Rust demangler

if type llvm-cxxfilt >/dev/null 2>&1 ; then

	cppfilt=llvm-cxxfilt

elif type c++filt >/dev/null 2>&1 ; then

	cppfilt=c++filt

	cppfilt_opts=-i

fi



if [[ $1 == "-r" ]] ; then

	vmlinux=""

	basepath="auto"
@@ -180,6 +188,12 @@ parse_symbol() { 
	# In the case of inlines, move everything to same line

	code=${code//$'\n'/' '}



	# Demangle if the name looks like a Rust symbol and if

	# we got a Rust demangler

	if [[ $name =~ ^_R && $cppfilt != "" ]] ; then

		name=$("$cppfilt" "$cppfilt_opts" "$name")

	fi



	# Replace old address with pretty line numbers

	symbol="$segment$name ($code)"

}