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Remove support for old gnu v2 name mangling.

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PR 24044
	* cxxfilt.c (hp_symbol_characters): Delete.
	(main): Remove depcreated demangling styles.
	* stabs.c (parse_stab_argtypes): Remove support for old gnu v2
	demangling opnames.
	* testsuite/binutils-all/cxxfilt.exp: Use the
	--no-strip-underscore option for targets that do prefix their
	symbols with underscores.
	Update tests to elimiate those that use gnu v2 encoding.
This commit is contained in:
Nick Clifton
2019-01-08 16:53:02 +00:00
parent c8fcc36012
commit 236f4ebe3a
4 changed files with 54 additions and 72 deletions
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51
binutils/cxxfilt.c
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@@ -135,42 +135,6 @@ standard_symbol_characters (void)
return "_$.";
}
/* Return the string of non-alnum characters that may occur
as a valid symbol name component in an HP object file.
Note that, since HP's compiler generates object code straight from
C++ source, without going through an assembler, its mangled
identifiers can use all sorts of characters that no assembler would
tolerate, so the alphabet this function creates is a little odd.
Here are some sample mangled identifiers offered by HP:
typeid*__XT24AddressIndExpClassMember_
[Vftptr]key:__dt__32OrdinaryCompareIndExpClassMemberFv
__ct__Q2_9Elf64_Dyn18{unnamed.union.#1}Fv
This still seems really weird to me, since nowhere else in this
file is there anything to recognize curly brackets, parens, etc.
I've talked with Srikanth <srikanth@cup.hp.com>, and he assures me
this is right, but I still strongly suspect that there's a
misunderstanding here.
If we decide it's better for c++filt to use HP's assembler syntax
to scrape identifiers out of its input, here's the definition of
the symbol name syntax from the HP assembler manual:
Symbols are composed of uppercase and lowercase letters, decimal
digits, dollar symbol, period (.), ampersand (&), pound sign(#) and
underscore (_). A symbol can begin with a letter, digit underscore or
dollar sign. If a symbol begins with a digit, it must contain a
non-digit character.
So have fun. */
static const char *
hp_symbol_characters (void)
{
return "_$.<>#,*&[]:(){}";
}
extern int main (int, char **);
int
@@ -245,20 +209,13 @@ main (int argc, char **argv)
switch (current_demangling_style)
{
case gnu_demangling:
case lucid_demangling:
case arm_demangling:
case java_demangling:
case edg_demangling:
case gnat_demangling:
case auto_demangling:
case gnu_v3_demangling:
case java_demangling:
case gnat_demangling:
case dlang_demangling:
case rust_demangling:
case auto_demangling:
valid_symbols = standard_symbol_characters ();
break;
case hp_demangling:
valid_symbols = hp_symbol_characters ();
valid_symbols = standard_symbol_characters ();
break;
default:
/* Folks should explicitly indicate the appropriate alphabet for