Bug#991169: llvm-nm: --demangle does not work with versioned symbols

[Steffen Weinhart]

Package: llvm-12
X-Debbugs-Cc: stw392 at blue-cable.de
Version: 1:12.0.1-1
Severity: normal
File: /usr/bin/llvm-nm-12

Dear Maintainer,

the --demangle option of llvm-nm has no effect on symbols that are 
versioned.
It seems like the program tries to demangle the already versioned symbol 
name (including the appended @<version>).
For an example, just compare the output of "llvm-nm -DC libstdc++.so" 
vs. "nm -DC libstdc++.so".


-- System Information:
Debian Release: 11.0
   APT prefers testing
   APT policy: (990, 'testing'), (500, 'testing-security'), (500, 
'stable-updates'), (500, 'proposed-updates'), (500, 'unstable'), (500, 
'stable'), (1,'experimental')
Architecture: amd64 (x86_64)
Foreign Architectures: i386

Kernel: Linux 5.13.1 (SMP w/8 CPU threads; PREEMPT)
Kernel taint flags: TAINT_CPU_OUT_OF_SPEC
Locale: LANG=de_DE.UTF-8, LC_CTYPE=de_DE.UTF-8 (charmap=UTF-8), LANGUAGE=de
Shell: /bin/sh linked to /bin/dash
Init: systemd (via /run/systemd/system)

Versions of packages llvm-12 depends on:
ii  libc6                 2.31-12
ii  libgcc-s1             11.1.0-1
ii  libllvm12             1:12.0.1-1
ii  libpfm4               4.11.1+git32-gd0b85fb-1
ii  libstdc++6            11.1.0-1
ii  libtinfo6             6.2+20201114-2
ii  libz3-4               4.8.10-1
ii  llvm-12-linker-tools  1:12.0.1-1
ii  llvm-12-runtime       1:12.0.1-1
ii  zlib1g                1:1.2.11.dfsg-2

Versions of packages llvm-12 recommends:
ii  llvm-12-dev  1:12.0.1-1

Versions of packages llvm-12 suggests:
ii  llvm-12-doc  1:12.0.1-1