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Re: Versioned symbols in elfutils and uClibc
- From: Mark Wielaard <mjw at redhat dot com>
- To: elfutils-devel at lists dot fedorahosted dot org
- Date: Tue, 28 Apr 2015 19:34:05 +0200
- Subject: Re: Versioned symbols in elfutils and uClibc
On Mon, Apr 27, 2015 at 05:12:01AM +0300, Max Filippov wrote:
> So, I've switched to the pristine sources from git and forward-ported
> series pointed to by Anthony and now the results are the following:
>
> # TOTAL: 134
> # PASS: 116
> # SKIP: 7
> # XFAIL: 0
> # FAIL: 11
> # XPASS: 0
> # ERROR: 0
>
> The log is attached. I'll take a look at the segfaults.
> FAIL: run-strip-reloc.sh
> ========================
>
> *** failure --reloc-debug-sections not smaller /home/jcmvbkbc/ws/tensilica/elfutils/elfutils-0.161/src/strip.o
> FAIL run-strip-reloc.sh (exit status: 1)
>
> FAIL: run-elflint-self.sh
> =========================
>
> invalid machine flags: 0x300
> section [ 7] '.rela.dyn': relocation 0: invalid type
> [...]
> section [17] '.dynamic': entry 19: unknown tag
> section [17] '.dynamic': entry 20: unknown tag
> section [35] '.symtab': _GLOBAL_OFFSET_TABLE_ symbol refers to section [ 9] '.text'
These kind of failures often indicate that the backend code couldn't
be loaded for the ELF file. Which architecture is this? What is the
ELF EM machine type of the file? Does ebl openbackend () find the correct
shared library to dlopen?
> FAIL: run-backtrace-native.sh
> =============================
>
> /home/jcmvbkbc/ws/tensilica/elfutils/elfutils-0.161/tests/backtrace: backtrace.c: 346: exec_dump: Assertion `((((__extension__ (((union { __typeof(status) __in; int __i; }) { .__in = (status) }).__i))) & 0xff) == 0x7f)' failed.
> ./test-subr.sh: line 84: 2886 Aborted LD_LIBRARY_PATH="${built_library_path}${LD_LIBRARY_PATH:+:}$LD_LIBRARY_PATH" $VALGRIND_CMD "$@"
> backtrace-child: no main
> FAIL run-backtrace-native.sh (exit status: 1)
That is strange. waitpid () returned something we didn't expect.
> FAIL: run-stack-d-test.sh
> =========================
>
> --- stack.out
> +++ -
> @@ -1,5 +1,5 @@
> PID 13654 - core
> TID 13654:
> -#0 0x00000000004006c8 _Z2fui
> +#0 0x00000000004006c8 fu(int)
> #1 0x00000000004004c5 main
> /home/jcmvbkbc/ws/tensilica/elfutils/elfutils-0.161/src/stack: tid 13654: shown max number of frames (2, use -n 0 for unlimited)
> FAIL run-stack-d-test.sh (exit status: 1)
This might be a testsuite bug.
I assume the configure check for __cxa_demangle failed because you
don't have libstdc++ installed. Then some tools will not be able to
demangle (C++) symbols. We should fix the test to SKIP in that case.
> #1 0x00000000004006c8 foobar
> #2 0x00000000004006c8 bar
> #3 0x00000000004006c8 foo
> -#4 0x00000000004006c8 _Z2fui
> +#4 0x00000000004006c8 fu(int)
> #5 0x00000000004004c5 main
> /home/jcmvbkbc/ws/tensilica/elfutils/elfutils-0.161/src/stack: tid 13654: shown max number of frames (6, use -n 0 for unlimited)
> FAIL run-stack-i-test.sh (exit status: 1)
Likewise.
Cheers,
Mark