[PATCH] Add valgrind smoke test

[Carlos O'Donell]

On 5/24/21 8:15 AM, Alexandra Hájková via Libc-alpha wrote:
> From: Alexandra Hájková <ahajkova@redhat.com>
> 
> Check if valgrind is present during the configure time and
> run smoke tests with valgrind to verify dynamic loader.

Thanks for proposing this. We have been running similar valgrind smoke tests
in Fedora Rawhide and it is very beneficial.

> ---
>  Makefile     |  4 +++
>  configure    | 93 ++++++++++++++++++++++++++++++++++++++++++++++++++++
>  configure.ac |  1 +
>  elf/Makefile |  8 +++++
>  4 files changed, 106 insertions(+)
> 
> diff --git a/Makefile b/Makefile
> index 50f99ca611..a9ae15d65e 100644
> --- a/Makefile
> +++ b/Makefile
> @@ -146,6 +146,7 @@ GCONV_PATH="$${builddir}/iconvdata"
>  usage () {
>    echo "usage: $$0 [--tool=strace] PROGRAM [ARGUMENTS...]" 2>&1
>    echo "       $$0 --tool=valgrind PROGRAM [ARGUMENTS...]" 2>&1
> +  echo "       $$0 --tool=valgrind-test PROGRAM [ARGUMENTS...]" 2>&1

OK. Add valgrind-test to testrun.sh.

>    exit 1
>  }
>  
> @@ -181,6 +182,9 @@ case "$$toolname" in
>    valgrind)
>      exec env $(run-program-env) valgrind $(test-via-rtld-prefix) $${1+"$$@"}
>      ;;
> +  valgrind-test)
> +    exec env $(run-program-env) valgrind -q --error-exitcode=1 $(test-via-rtld-prefix) $${1+"$$@"}
> +    ;;

OK.

>    container)
>      exec env $(run-program-env) $(test-via-rtld-prefix) \
>        $(common-objdir)/support/test-container \
> diff --git a/configure b/configure
> index 5dde2ba355..769341ef05 100755
> --- a/configure
> +++ b/configure

OK.

> --- a/configure.ac
> +++ b/configure.ac
> @@ -52,6 +52,7 @@ fi
>  AC_SUBST(cross_compiling)
>  AC_PROG_CPP
>  AC_CHECK_TOOL(READELF, readelf, false)
> +AC_CHECK_TOOL([VALGRIND], [valgrind], [false])

OK.

>  
>  # We need the C++ compiler only for testing.
>  AC_PROG_CXX
> diff --git a/elf/Makefile b/elf/Makefile
> index 834ec858a8..5b72cc76f9 100644
> --- a/elf/Makefile
> +++ b/elf/Makefile
> @@ -49,6 +49,14 @@ ifeq (yesyes,$(build-shared)$(run-built-tests))
>  tests-special += $(objpfx)list-tunables.out
>  endif
>  
> +# Run smoke tests with valgrind to verify dynamic loader
> +ifneq ($(VALGRIND),false)
> +tests-special += $(objpfx)valgrind-smoke-test.out
> +$(objpfx)valgrind-smoke-test.out: $(objpfx)ld.so
> +	$(common-objpfx)testrun.sh --tool=valgrind-test /usr/bin/true > $@
> +	$(common-objpfx)testrun.sh --tool=valgrind-test /usr/bin/true --help >> $@
> +endif
Does this work for cross-compiling?

Do you correctly detect the target valgrind and does the test wrapper allow the
correct execution of valgrind on the target system?

Please see scripts/cross-test-ssh.sh.

> +
>  # Make sure that the compiler does not insert any library calls in tunables
>  # code paths.
>  ifeq (yes,$(have-loop-to-function))
> 


-- 
Cheers,
Carlos.