https://gcc.gnu.org/bugzilla/show_bug.cgi?id=110130
Bug ID: 110130
Summary: the rust demangling trap in long hangs , causing
binutils/nm hangs for a long time to be killed.
Product: gcc
Version: rust/master
Status: UNCONFIRMED
Severity: normal
Priority: P3
Component: demangler
Assignee: unassigned at gcc dot gnu.org
Reporter: swj22 at mails dot tsinghua.edu.cn
Target Milestone: ---
Created attachment 55264
--> https://gcc.gnu.org/bugzilla/attachment.cgi?id=55264&action=edit
the test case
## Write in front , i use afl to fuzz binutils2.40-nm-new , and then find this
bug. Then i file the bug file to binutils/bugzilla . The answer is:
"""
This is a problem demangling the rust symbol _RYODGYODGpe__RYODGpe.
"""
So , i report bug to here .
## command i used: nm-new -C file
this test case , may make nm-new hang for much time until the system kill it ,
i have test it in ubuntu20.04 (compiler test: gcc 7.4 and 9.5).
it seems like a infinite loop , i use gdb to debug it , it behaves like
infinite loop , but my level is to low , can not analyse the root cause , so i
report the bug here.
## the attachment is the test case
