Re: nm/objdump --hep still display unsupported styles about --demangle.

[Alan Modra]

On Wed, Nov 10, 2021 at 05:02:01PM +0800, nora-pxh wrote:
> Hello, I find a problem about usage.
> The commit 1910070b298052d7ca8e4024891465824588c1e9 fixed demangle.h to
> remove support for ancient GNU (pre-3.0), Lucid, ARM, HP, and EDG demangling 
> styles.
> But usage of nm and objdump is still show the following message.
>   -C, --demangle[=STYLE] Decode low-level symbol names into user-level names
>                           The STYLE, if specified, can be `auto' (the 
> default),
>                           `gnu', `lucid', `arm', `hp', `edg', `gnu-v3', `java'
>                           or `gnat'
> So  if you execute --demangle=gnu, it will display error message: unknown 
> demangling style gnu. 
> Would you delete unsupported  styles from usage of nm and objdump?

This was fixed with commit 0d64622696e02
nm now shows
  -C, --demangle[=STYLE] Decode mangled/processed symbol names
                           STYLE can be "none", "auto", "gnu-v3", "java",
                           "gnat", "dlang", "rust"

-- 
Alan Modra
Australia Development Lab, IBM