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From: Mark Wielaard <mark@klomp.org>
To: Ilya Leoshkevich <iii@linux.ibm.com>
Cc: elfutils-devel@sourceware.org
Subject: Re: [PATCH v2 6/7] configure: Add --disable-demangler
Date: Thu, 09 Feb 2023 14:40:12 +0100	[thread overview]
Message-ID: <323b8853c0a80198d5d95e8cefe074a43625fa88.camel@klomp.org> (raw)
In-Reply-To: <20230208195226.144143-7-iii@linux.ibm.com>

Hi Ilya,

On Wed, 2023-02-08 at 20:52 +0100, Ilya Leoshkevich wrote:
> __cxa_demangle is normally implemented in the C++ runtime library,
> instrumenting which for MSan is a hassle. Add a knob for disbling it.

Thanks for the fixes.

Pushed,

Mark

> Signed-off-by: Ilya Leoshkevich <iii@linux.ibm.com>
> ---
>  configure.ac | 8 +++++++-
>  1 file changed, 7 insertions(+), 1 deletion(-)
> 
> diff --git a/configure.ac b/configure.ac
> index 7dc9be63..62a4c8a7 100644
> --- a/configure.ac
> +++ b/configure.ac
> @@ -466,11 +466,17 @@ CFLAGS="$CFLAGS -D_GNU_SOURCE"
>  AC_FUNC_STRERROR_R()
>  CFLAGS="$old_CFLAGS"
>  
> +AC_ARG_ENABLE([demangler],
> +AS_HELP_STRING([--disable-demangler],
> +	       [Disable libstdc++ demangle support]),
> +	       [], [enable_demangler=yes])
> +AS_IF([test "x$enable_demangler" == xyes],
>  AC_CHECK_LIB([stdc++], [__cxa_demangle], [dnl
>  AC_DEFINE([USE_DEMANGLE], [1], [Defined if demangling is enabled])])
>  AM_CONDITIONAL(DEMANGLE, test "x$ac_cv_lib_stdcpp___cxa_demangle" = "xyes")
>  AS_IF([test "x$ac_cv_lib_stdcpp___cxa_demangle" = "xyes"],
> -      [enable_demangler=yes],[enable_demangler=no])
> +      [enable_demangler=yes],[enable_demangler=no]),
> +AM_CONDITIONAL(DEMANGLE, false))
>  
>  AC_ARG_ENABLE([textrelcheck],
>  AS_HELP_STRING([--disable-textrelcheck],


  reply	other threads:[~2023-02-09 13:40 UTC|newest]

Thread overview: 15+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2023-02-08 19:52 [PATCH v2 0/7] Add Memory Sanitizer support Ilya Leoshkevich
2023-02-08 19:52 ` [PATCH v2 1/7] libasm: Fix xdefault_pattern initialization Ilya Leoshkevich
2023-02-09 13:14   ` Mark Wielaard
2023-02-08 19:52 ` [PATCH v2 2/7] printversion: Fix unused variable Ilya Leoshkevich
2023-02-08 19:52 ` [PATCH v2 3/7] readelf: Fix set but not used parameter Ilya Leoshkevich
2023-02-09 13:17   ` Mark Wielaard
2023-02-08 19:52 ` [PATCH v2 4/7] x86_64_return_value_location: Support lvalue and rvalue references Ilya Leoshkevich
2023-02-09 13:45   ` Mark Wielaard
2023-02-10  1:20     ` Ilya Leoshkevich
2023-02-10 16:22       ` Frank Ch. Eigler
2023-02-08 19:52 ` [PATCH v2 5/7] configure: Use -fno-addrsig if possible Ilya Leoshkevich
2023-02-09 13:28   ` Mark Wielaard
2023-02-08 19:52 ` [PATCH v2 6/7] configure: Add --disable-demangler Ilya Leoshkevich
2023-02-09 13:40   ` Mark Wielaard [this message]
2023-02-08 19:52 ` [PATCH v2 7/7] configure: Add --enable-sanitize-memory Ilya Leoshkevich

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