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[Libunwind-devel] testing libunwind for aarch64 bigendian system


From: Arun Chandran
Subject: [Libunwind-devel] testing libunwind for aarch64 bigendian system
Date: Mon, 3 Nov 2014 14:22:50 +0530

Hi,

I am testing libunwind on my system

address@hidden:~/libunwind# uname -a
Linux genericarmv8b 3.18.0-rc2+ #90 SMP PREEMPT Mon Nov 3 12:44:39 IST
2014 aarch64_be GNU/Linux

using big-endian filesystem from here
http://releases.linaro.org/latest/openembedded/aarch64/

This is what I did.

1) git clone git://git.sv.gnu.org/libunwind.git

2) cd libunwind

3) autorefconf -i

4) ./configure failed for me saying unknown ELF target:aarch64_be


address@hidden:~/libunwind# ./configure
checking build system type... aarch64_be-unknown-linux-gnu
checking host system type... aarch64_be-unknown-linux-gnu
checking target system type... aarch64_be-unknown-linux-gnu
checking for a BSD-compatible install... /usr/bin/install -c
checking whether build environment is sane... yes
checking for a thread-safe mkdir -p... /bin/mkdir -p
checking for gawk... gawk
checking whether make sets $(MAKE)... yes
checking whether make supports nested variables... yes
checking whether to enable maintainer-specific portions of Makefiles... no
checking for gcc... gcc
checking whether the C compiler works... yes
checking for C compiler default output file name... a.out
checking for suffix of executables...
checking whether we are cross compiling... no
checking for suffix of object files... o
checking whether we are using the GNU C compiler... yes
checking whether gcc accepts -g... yes
checking for gcc option to accept ISO C89... none needed
checking whether gcc understands -c and -o together... yes
checking for style of include used by make... GNU
checking dependency style of gcc... gcc3
checking for g++... g++
checking whether we are using the GNU C++ compiler... yes
checking whether g++ accepts -g... yes
checking dependency style of g++... gcc3
checking whether make sets $(MAKE)... (cached) yes
checking how to print strings... printf
checking for a sed that does not truncate output... /bin/sed
checking for grep that handles long lines and -e... /bin/grep
checking for egrep... /bin/grep -E
checking for fgrep... /bin/grep -F
checking for ld used by gcc... /usr/aarch64_be-oe-linux/bin/ld
checking if the linker (/usr/aarch64_be-oe-linux/bin/ld) is GNU ld... yes
checking for BSD- or MS-compatible name lister (nm)... /usr/bin/nm -B
checking the name lister (/usr/bin/nm -B) interface... BSD nm
checking whether ln -s works... yes
checking the maximum length of command line arguments... 1572864
checking whether the shell understands some XSI constructs... yes
checking whether the shell understands "+="... yes
checking how to convert aarch64_be-unknown-linux-gnu file names to
aarch64_be-unknown-linux-gnu format... func_convert_file_noop
checking how to convert aarch64_be-unknown-linux-gnu file names to
toolchain format... func_convert_file_noop
checking for /usr/aarch64_be-oe-linux/bin/ld option to reload object files... -r
checking for objdump... objdump
checking how to recognize dependent libraries... pass_all
checking for dlltool... no
checking how to associate runtime and link libraries... printf %s\n
checking for ar... ar
checking for archiver @FILE support... @
checking for strip... strip
checking for ranlib... ranlib
checking command to parse /usr/bin/nm -B output from gcc object... ok
checking for sysroot... no
checking for mt... no
checking if : is a manifest tool... no
checking how to run the C preprocessor... gcc -E
checking for ANSI C header files... yes
checking for sys/types.h... yes
checking for sys/stat.h... yes
checking for stdlib.h... yes
checking for string.h... yes
checking for memory.h... yes
checking for strings.h... yes
checking for inttypes.h... yes
checking for stdint.h... yes
checking for unistd.h... yes
checking for dlfcn.h... yes
checking for objdir... .libs
checking if gcc supports -fno-rtti -fno-exceptions... no
checking for gcc option to produce PIC... -fPIC -DPIC
checking if gcc PIC flag -fPIC -DPIC works... yes
checking if gcc static flag -static works... yes
checking if gcc supports -c -o file.o... yes
checking if gcc supports -c -o file.o... (cached) yes
checking whether the gcc linker (/usr/aarch64_be-oe-linux/bin/ld)
supports shared libraries... yes
checking whether -lc should be explicitly linked in... no
checking dynamic linker characteristics... GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking whether stripping libraries is possible... yes
checking if libtool supports shared libraries... yes
checking whether to build shared libraries... yes
checking whether to build static libraries... yes
checking how to run the C++ preprocessor... g++ -E
checking for ld used by g++... /usr/aarch64_be-oe-linux/bin/ld
checking if the linker (/usr/aarch64_be-oe-linux/bin/ld) is GNU ld... yes
checking whether the g++ linker (/usr/aarch64_be-oe-linux/bin/ld)
supports shared libraries... yes
checking for g++ option to produce PIC... -fPIC -DPIC
checking if g++ PIC flag -fPIC -DPIC works... yes
checking if g++ static flag -static works... yes
checking if g++ supports -c -o file.o... yes
checking if g++ supports -c -o file.o... (cached) yes
checking whether the g++ linker (/usr/aarch64_be-oe-linux/bin/ld)
supports shared libraries... yes
checking dynamic linker characteristics... (cached) GNU/Linux ld.so
checking how to hardcode library paths into programs... immediate
checking dependency style of gcc... gcc3
checking for __uc_get_grs in -luca... no
checking for library containing dlopen... -ldl
checking atomic_ops.h usability... no
checking atomic_ops.h presence... no
checking for atomic_ops.h... no
checking for ANSI C header files... (cached) yes
checking asm/ptrace_offsets.h usability... no
checking asm/ptrace_offsets.h presence... no
checking for asm/ptrace_offsets.h... no
checking endian.h usability... yes
checking endian.h presence... yes
checking for endian.h... yes
checking sys/endian.h usability... no
checking sys/endian.h presence... no
checking for sys/endian.h... no
checking execinfo.h usability... yes
checking execinfo.h presence... yes
checking for execinfo.h... yes
checking ia64intrin.h usability... no
checking ia64intrin.h presence... no
checking for ia64intrin.h... no
checking sys/uc_access.h usability... no
checking sys/uc_access.h presence... no
checking for sys/uc_access.h... no
checking for unistd.h... (cached) yes
checking signal.h usability... yes
checking signal.h presence... yes
checking for signal.h... yes
checking for sys/types.h... (cached) yes
checking sys/procfs.h usability... yes
checking sys/procfs.h presence... yes
checking for sys/procfs.h... yes
checking sys/ptrace.h usability... yes
checking sys/ptrace.h presence... yes
checking for sys/ptrace.h... yes
checking byteswap.h usability... yes
checking byteswap.h presence... yes
checking for byteswap.h... yes
checking elf.h usability... yes
checking elf.h presence... yes
checking for elf.h... yes
checking sys/elf.h usability... yes
checking sys/elf.h presence... yes
checking for sys/elf.h... yes
checking link.h usability... yes
checking link.h presence... yes
checking for link.h... yes
checking sys/link.h usability... no
checking sys/link.h presence... no
checking for sys/link.h... no
checking for an ANSI C-conforming const... yes
checking for inline... inline
checking for size_t... yes
checking size of off_t... 8
checking for struct dl_phdr_info.dlpi_subs... yes
checking for struct elf_prstatus... yes
checking for struct prstatus... no
checking whether PTRACE_POKEUSER is declared... yes
checking whether PTRACE_POKEDATA is declared... yes
checking whether PTRACE_TRACEME is declared... yes
checking whether PTRACE_CONT is declared... yes
checking whether PTRACE_SINGLESTEP is declared... yes
checking whether PTRACE_SYSCALL is declared... yes
checking whether PT_IO is declared... no
checking whether PT_GETREGS is declared... no
checking whether PT_GETFPREGS is declared... no
checking whether PT_CONTINUE is declared... yes
checking whether PT_TRACE_ME is declared... yes
checking whether PT_STEP is declared... yes
checking whether PT_SYSCALL is declared... yes
checking for dl_iterate_phdr... yes
checking for dl_phdr_removals_counter... no
checking for dlmodinfo... no
checking for getunwind... no
checking for ttrace... no
checking for mincore... yes
checking if building with AltiVec... no
checking if we should build libunwind-coredump... yes
checking for sys/ptrace.h... (cached) yes
checking if we should build libunwind-ptrace... yes
checking if we should build libunwind-setjmp... yes
checking for build architecture... aarch64_be
checking for host architecture... aarch64_be
checking for target architecture... aarch64_be
checking for target operating system... linux-gnu
checking for ELF helper width... configure: error: Unknown ELF target:
aarch64_be

4) I modified configure.ac; and did make
address@hidden:/nfs_root/linaro-image-lamp-genericarmv8b/home/root/libunwind#
git diff configure.ac
diff --git a/configure.ac b/configure.ac
index 582e71f..05343a2 100644
--- a/configure.ac
+++ b/configure.ac
@@ -103,6 +103,12 @@ SET_ARCH([$build_cpu],[build_arch])
 SET_ARCH([$host_cpu],[host_arch])
 SET_ARCH([$target_cpu],[target_arch])

+if test x$target_arch = xaarch64_be; then
+        target_arch=aarch64
+        build_arch=aarch64
+        host_arch=aarch64
+fi
+
 AC_ARG_ENABLE(coredump,
        AS_HELP_STRING([--enable-coredump],[building
libunwind-coredump library]),,
         [AS_CASE([$host_arch], [aarch64*|arm*|mips*|sh*|x86*|tile*],
[enable_coredump=yes], [enable_coredump=no])]

5) Then i ran make check


make[2]: Nothing to be done for 'run-coredump-unwind'.
make[2]: Nothing to be done for 'run-coredump-unwind-mdi'.
make[2]: Leaving directory '/home/root/libunwind/tests'
make  check-TESTS
make[2]: Entering directory '/home/root/libunwind/tests'
make[2]: Warning: File '.deps/test-setjmp.Po' has modification time 18
s in the future
make[3]: Entering directory '/home/root/libunwind/tests'
make[3]: Warning: File '.deps/test-setjmp.Po' has modification time 18
s in the future
PASS: test-proc-info
test-static-lin[29982]: unhandled level 1 translation fault (11) at
0x19040ffec, esr 0x92000005
../config/test-driver: line 107: 29982 Segmentation fault      "$@" >
$log_file 2>&1
FAIL: test-static-link
PASS: test-strerror
lt-Gtest-bt[30012]: unhandled level 2 translation fault (11) at
0x18401abc, esr 0x92000006
../config/test-driver: line 107: 30012 Segmentation fault      "$@" >
$log_file 2>&1
FAIL: Gtest-bt
PASS: Ltest-bt
lt-Gtest-exc[30060]: unhandled level 2 translation fault (11) at
0x144010cc, esr 0x92000006
../config/test-driver: line 107: 30060 Segmentation fault      "$@" >
$log_file 2>&1
FAIL: Gtest-exc
PASS: Ltest-exc
lt-Gtest-init[30108]: unhandled level 2 translation fault (11) at
0x14400f2c, esr 0x92000006
../config/test-driver: line 107: 30108 Segmentation fault      "$@" >
$log_file 2>&1
FAIL: Gtest-init
PASS: Ltest-init
lt-Gtest-concur[30175]: unhandled level 2 translation fault (11) at
0x104011fc, esr 0x92000006
lt-Gtest-concur[30177]: unhandled level 2 translation fault (11) at
0x104011fc, esr 0x92000006
../config/test-driver: line 107: 30156 Segmentation fault      "$@" >
$log_file 2>&1
FAIL: Gtest-concurrent
PASS: Ltest-concurrent
lt-Gtest-resume[30593]: unhandled level 2 translation fault (11) at
0x0c4013ec, esr 0x92000006
../config/test-driver: line 107: 30593 Segmentation fault      "$@" >
$log_file 2>&1
FAIL: Gtest-resume-sig
PASS: Ltest-resume-sig
lt-Gtest-resume[30641]: unhandled level 2 translation fault (11) at
0x0c4013f4, esr 0x92000006
../config/test-driver: line 107: 30641 Segmentation fault      "$@" >
$log_file 2>&1
FAIL: Gtest-resume-sig-rt
PASS: Ltest-resume-sig-rt
../config/test-driver: line 107: 30689 Segmentation fault      "$@" >
$log_file 2>&1
XFAIL: Gtest-dyn1
XFAIL: Ltest-dyn1
lt-Gtest-trace[30737]: unhandled level 2 translation fault (11) at
0x18401c74, esr 0x92000006
../config/test-driver: line 107: 30737 Segmentation fault      "$@" >
$log_file 2>&1
FAIL: Gtest-trace
PASS: Ltest-trace
PASS: test-async-sig
PASS: test-flush-cache
lt-test-init-re[30833]: unhandled level 2 translation fault (11) at
0x08400e74, esr 0x92000006
../config/test-driver: line 107: 30833 Segmentation fault      "$@" >
$log_file 2>&1
FAIL: test-init-remote
lt-test-mem[30857]: unhandled level 2 translation fault (11) at
0x0c400e4c, esr 0x92000006

../config/test-driver: line 107: 30857 Segmentation fault      "$@" >
$log_file 2>&1
FAIL: test-mem
PASS: Ltest-varargs
PASS: Ltest-nomalloc
PASS: Ltest-nocalloc
PASS: Lrs-race
FAIL: test-ptrace
PASS: test-setjmp
FAIL: run-check-namespace
FAIL: run-ptrace-mapper
FAIL: run-ptrace-misc
crasher[31499]: unhandled level 2 translation fault (11) at
0x00000020, esr 0x92000046
FAIL: run-coredump-unwind
crasher[31548]: unhandled level 2 translation fault (11) at
0x00000020, esr 0x92000046

FAIL: run-coredump-unwind-mdi
make[4]: Entering directory '/home/root/libunwind/tests'
make[4]: Nothing to be done for 'all'.
make[4]: Leaving directory '/home/root/libunwind/tests'
============================================================================
Testsuite summary for libunwind 1.1
============================================================================
# TOTAL: 34
# PASS:  16
# SKIP:  0
# XFAIL: 2
# FAIL:  16
# XPASS: 0
# ERROR: 0
============================================================================
See tests/test-suite.log
Please report to address@hidden
============================================================================
Makefile:1421: recipe for target 'test-suite.log' failed
make[3]: *** [test-suite.log] Error 1
make[3]: Leaving directory '/home/root/libunwind/tests'
Makefile:1527: recipe for target 'check-TESTS' failed
make[2]: *** [check-TESTS] Error 2
make[2]: Leaving directory '/home/root/libunwind/tests'
Makefile:1915: recipe for target 'check-am' failed
make[1]: *** [check-am] Error 2
make[1]: Leaving directory '/home/root/libunwind/tests'
Makefile:583: recipe for target 'check-recursive' failed
make: *** [check-recursive] Error 1


Any pointers to start digging?

--Arun



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