libunwind tests fail on the 5.0 branch

[zmodem]

Bugzilla Link	33858
Resolution	FIXED
Resolved on	Dec 05, 2017 13:30
Version	5.0
OS	Linux
Blocks	#33840
CC	@compnerd,@rovka,@petrhosek,@rengolin,@smithp35,@Artem-B,@tstellar
Fixed by commit(s)	r316657 r311574 r316664 r316991

Extended Description

When running the test-release.sh script for 5.0.0, the two tests below fail with

undefined reference to `unw_getcontext'

and

undefined reference to unw_getcontext' undefined reference to unw_init_local'
undefined reference to `unw_step'

FAIL: libunwind :: unw_getcontext.pass.cpp (42966 of 44229)
******************** TEST 'libunwind :: unw_getcontext.pass.cpp' FAILED ********************
Command: ['/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/bin/clang++', '-o', '/usr/local/google/work/relea
se-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Output/unw_getcontext.pass.cpp.o', '-x', 'c++', '/usr/local/g
oogle/work/release-test/branches_release_50/llvm.src/projects/libunwind/test/unw_getcontext.pass.cpp', '-c', '-v', '-D_LIBCPP_DISABLE_AVAILABILITY', '-Werror=thread-s
afety', '-DLIBUNWIND_NO_TIMER', '-fno-exceptions', '-DLIBUNWIND_HAS_NO_EXCEPTIONS', '-std=c++1z', '-I/work/release-test/branches_release_50/llvm.src/projects/libunwin
d/include', '-D__STDC_FORMAT_MACROS', '-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-Itest/support', '-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER', '-Wall', '-Wextr
a', '-Werror', '-Wuser-defined-warnings', '-Wshadow', '-Wno-unused-command-line-argument', '-Wno-attributes', '-Wno-pessimizing-move', '-Wno-c++11-extensions', '-Wno-
user-defined-literals', '-Wno-noexcept-type', '-Wno-aligned-allocation-unavailable', '-Wsign-compare', '-Wunused-variable', '-Wunused-parameter', '-Wunreachable-code'
, '-Wno-conversion', '-Wno-unused-local-typedef', '-Wno-#warnings', '-c', '&&', '/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_
50.install/usr/local/bin/clang++', '-o', '/usr/local/google/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunw
ind/test/Output/unw_getcontext.pass.cpp.exe', '/usr/local/google/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/l
ibunwind/test/Output/unw_getcontext.pass.cpp.o', '-v', '-D_LIBCPP_DISABLE_AVAILABILITY', '-L/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branch
es_release_50.obj/./lib', '-Wl,-rpath,/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/./lib', '-nodefaultlibs', '-lc++', '
-lc++abi', '-lm', '-lgcc_s', '-lgcc', '-lpthread', '-lc', '-lgcc_s', '-lgcc']
Exit Code: 1
Standard Error:

clang version 5.0.0 (branches/release_50)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.3
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@MX32
Selected multilib: .;@m64
"/usr/local/google/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/bin/clang-5.0" -cc1 -triple x86_64-unknow
n-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -discard-value-names -main-file-name unw_getcontext.pass.cpp -mrelocation-model static -mthread
-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -v -dwarf-column-info -debugger-tu
ning=gdb -coverage-notes-file /usr/local/google/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Out
put/unw_getcontext.pass.cpp.gcno -resource-dir /usr/local/google/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/lo
cal/lib/clang/5.0.0 -D _LIBCPP_DISABLE_AVAILABILITY -D LIBUNWIND_NO_TIMER -D LIBUNWIND_HAS_NO_EXCEPTIONS -I /work/release-test/branches_release_50/llvm.src/projects/l
ibunwind/include -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -D _STDC_CONSTANT_MACROS -I test/support -D LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -internal-isystem /us
r/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8 -internal-
isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8
/backward -internal-isystem /usr/local/include -internal-isystem /usr/local/google/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release
50.install/usr/local/lib/clang/5.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /us
r/include -Werror=thread-safety -Wall -Wextra -Werror -Wuser-defined-warnings -Wshadow -Wno-unused-command-line-argument -Wno-attributes -Wno-pessimizing-move -Wno-c+
+11-extensions -Wno-user-defined-literals -Wno-noexcept-type -Wno-aligned-allocation-unavailable -Wsign-compare -Wunused-variable -Wunused-parameter -Wunreachable-cod
e -Wno-conversion -Wno-unused-local-typedef -Wno-#warnings -std=c++1z -fdeprecated-macro -fdebug-compilation-dir /usr/local/google/work/release-test/branches_release
50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test -ferror-limit 19 -fmessage-length 0 -fobjc-runtime=gcc -fdiagnostics-show-option -o /u
sr/local/google/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Output/unw_getcontext.pass.cpp.o -x
c++ /usr/local/google/work/release-test/branches_release_50/llvm.src/projects/libunwind/test/unw_getcontext.pass.cpp
clang -cc1 version 5.0.0 based upon LLVM 5.0.0 default target x86_64-unknown-linux-gnu
ignoring nonexistent directory "test/support"
ignoring nonexistent directory "/include"
ignoring duplicate directory "/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8"
#include "..." search starts here:
#include <...> search starts here:
/work/release-test/branches_release_50/llvm.src/projects/libunwind/include
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/backward
/usr/local/include
/usr/local/google/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/lib/clang/5.0.0/include
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
clang version 5.0.0 (branches/release_50)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.3
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@MX32
Selected multilib: .;@m64
"/usr/bin/ld" -z relro --hash-style=gnu --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o /usr/local/google/work/release-test/branches_rele
ase_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Output/unw_getcontext.pass.cpp.exe /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86
64-linux-gnu/crt1.o /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/crti.o /usr/lib/gcc/x86_64-linux-gnu/4.8/crtbegin.o -L/work/release-test/branches_rele
ase_50/Phase3/Release/llvmCore-test-branches_release_50.obj/./lib -L/usr/lib/gcc/x86_64-linux-gnu/4.8 -L/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu -L
/lib/x86_64-linux-gnu -L/lib/../lib64 -L/usr/lib/x86_64-linux-gnu -L/usr/lib/gcc/x86_64-linux-gnu/4.8/../../.. -L/usr/local/google/work/release-test/branches_release
50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/bin/../lib -L/lib -L/usr/lib /usr/local/google/work/release-test/branches_release_50/Phase3/Rele
ase/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Output/unw_getcontext.pass.cpp.o -rpath /work/release-test/branches_release_50/Phase3/Release/llvmCo
re-test-branches_release_50.obj/./lib -lc++ -lc++abi -lm -lgcc_s -lgcc -lpthread -lc -lgcc_s -lgcc /usr/lib/gcc/x86_64-linux-gnu/4.8/crtend.o /usr/lib/gcc/x86_64-linu
x-gnu/4.8/../../../x86_64-linux-gnu/crtn.o
/usr/local/google/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Output/unw_getcontext.pass.cpp.o:
In function main': /usr/local/google/work/release-test/branches_release_50/llvm.src/projects/libunwind/test/unw_getcontext.pass.cpp:(.text+0x1a): undefined reference to unw_getcontext'
clang-5.0: error: linker command failed with exit code 1 (use -v to see invocation)

Compilation failed unexpectedly!

FAIL: libunwind :: libunwind_01.pass.cpp (42976 of 44229)
******************** TEST 'libunwind :: libunwind_01.pass.cpp' FAILED ********************
Command: ['/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/bin/clang++', '-o', '/usr/local/google/work/relea
se-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Output/libunwind_01.pass.cpp.o', '-x', 'c++', '/usr/local/goo
gle/work/release-test/branches_release_50/llvm.src/projects/libunwind/test/libunwind_01.pass.cpp', '-c', '-v', '-D_LIBCPP_DISABLE_AVAILABILITY', '-Werror=thread-safet
y', '-DLIBUNWIND_NO_TIMER', '-fno-exceptions', '-DLIBUNWIND_HAS_NO_EXCEPTIONS', '-std=c++1z', '-I/work/release-test/branches_release_50/llvm.src/projects/libunwind/in
clude', '-D__STDC_FORMAT_MACROS', '-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-Itest/support', '-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER', '-Wall', '-Wextra',
'-Werror', '-Wuser-defined-warnings', '-Wshadow', '-Wno-unused-command-line-argument', '-Wno-attributes', '-Wno-pessimizing-move', '-Wno-c++11-extensions', '-Wno-user
-defined-literals', '-Wno-noexcept-type', '-Wno-aligned-allocation-unavailable', '-Wsign-compare', '-Wunused-variable', '-Wunused-parameter', '-Wunreachable-code', '-
Wno-conversion', '-Wno-unused-local-typedef', '-Wno-#warnings', '-c', '&&', '/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.i
nstall/usr/local/bin/clang++', '-o', '/usr/local/google/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/
test/Output/libunwind_01.pass.cpp.exe', '/usr/local/google/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwi
nd/test/Output/libunwind_01.pass.cpp.o', '-v', '-D_LIBCPP_DISABLE_AVAILABILITY', '-L/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_relea
se_50.obj/./lib', '-Wl,-rpath,/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/./lib', '-nodefaultlibs', '-lc++', '-lc++abi
', '-lm', '-lgcc_s', '-lgcc', '-lpthread', '-lc', '-lgcc_s', '-lgcc']
Exit Code: 1
Standard Error:

clang version 5.0.0 (branches/release_50)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.3
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@MX32
Selected multilib: .;@m64
"/usr/local/google/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/bin/clang-5.0" -cc1 -triple x86_64-unknow
n-linux-gnu -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -discard-value-names -main-file-name libunwind_01.pass.cpp -mrelocation-model static -mthread-m
odel posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -munwind-tables -fuse-init-array -target-cpu x86-64 -v -dwarf-column-info -debugger-tuni
ng=gdb -coverage-notes-file /usr/local/google/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Outpu
t/libunwind_01.pass.cpp.gcno -resource-dir /usr/local/google/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/
lib/clang/5.0.0 -D _LIBCPP_DISABLE_AVAILABILITY -D LIBUNWIND_NO_TIMER -D LIBUNWIND_HAS_NO_EXCEPTIONS -I /work/release-test/branches_release_50/llvm.src/projects/libun
wind/include -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -D __STDC_CONSTANT_MACROS -I test/support -D _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -internal-isystem /usr/li
b/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8 -internal-isys
tem /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8 -internal-isystem /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/bac
kward -internal-isystem /usr/local/include -internal-isystem /usr/local/google/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.
install/usr/local/lib/clang/5.0.0/include -internal-externc-isystem /usr/include/x86_64-linux-gnu -internal-externc-isystem /include -internal-externc-isystem /usr/in
clude -Werror=thread-safety -Wall -Wextra -Werror -Wuser-defined-warnings -Wshadow -Wno-unused-command-line-argument -Wno-attributes -Wno-pessimizing-move -Wno-c++11-
extensions -Wno-user-defined-literals -Wno-noexcept-type -Wno-aligned-allocation-unavailable -Wsign-compare -Wunused-variable -Wunused-parameter -Wunreachable-code -W
no-conversion -Wno-unused-local-typedef -Wno-#warnings -std=c++1z -fdeprecated-macro -fdebug-compilation-dir /usr/local/google/work/release-test/branches_release_50/P
hase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test -ferror-limit 19 -fmessage-length 0 -fobjc-runtime=gcc -fdiagnostics-show-option -o /usr/l
ocal/google/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Output/libunwind_01.pass.cpp.o -x c++ /
usr/local/google/work/release-test/branches_release_50/llvm.src/projects/libunwind/test/libunwind_01.pass.cpp
clang -cc1 version 5.0.0 based upon LLVM 5.0.0 default target x86_64-unknown-linux-gnu
ignoring nonexistent directory "test/support"
ignoring nonexistent directory "/include"
ignoring duplicate directory "/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8"
#include "..." search starts here:
#include <...> search starts here:
/work/release-test/branches_release_50/llvm.src/projects/libunwind/include
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/x86_64-linux-gnu/c++/4.8
/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../../include/c++/4.8/backward
/usr/local/include
/usr/local/google/work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/lib/clang/5.0.0/include
/usr/include/x86_64-linux-gnu
/usr/include
End of search list.
clang version 5.0.0 (branches/release_50)
Target: x86_64-unknown-linux-gnu
Thread model: posix
InstalledDir: /work/release-test/branches_release_50/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/bin
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/i686-linux-gnu/4.9.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.7.3
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8.4
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9
Found candidate GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.9.3
Selected GCC installation: /usr/lib/gcc/x86_64-linux-gnu/4.8
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Candidate multilib: x32;@MX32
Selected multilib: .;@m64
"/usr/bin/ld" -z relro --hash-style=gnu --eh-frame-hdr -m elf_x86_64 -dynamic-linker /lib64/ld-linux-x86-64.so.2 -o /usr/local/google/work/release-test/branches_rele
ase_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Output/libunwind_01.pass.cpp.exe /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64
-linux-gnu/crt1.o /usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu/crti.o /usr/lib/gcc/x86_64-linux-gnu/4.8/crtbegin.o -L/work/release-test/branches_releas
e_50/Phase3/Release/llvmCore-test-branches_release_50.obj/./lib -L/usr/lib/gcc/x86_64-linux-gnu/4.8 -L/usr/lib/gcc/x86_64-linux-gnu/4.8/../../../x86_64-linux-gnu -L/l
ib/x86_64-linux-gnu -L/lib/../lib64 -L/usr/lib/x86_64-linux-gnu -L/usr/lib/gcc/x86_64-linux-gnu/4.8/../../.. -L/usr/local/google/work/release-test/branches_release_50
/Phase2/Release/llvmCore-test-branches_release_50.install/usr/local/bin/../lib -L/lib -L/usr/lib /usr/local/google/work/release-test/branches_release_50/Phase3/Releas
e/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Output/libunwind_01.pass.cpp.o -rpath /work/release-test/branches_release_50/Phase3/Release/llvmCore-t
est-branches_release_50.obj/./lib -lc++ -lc++abi -lm -lgcc_s -lgcc -lpthread -lc -lgcc_s -lgcc /usr/lib/gcc/x86_64-linux-gnu/4.8/crtend.o /usr/lib/gcc/x86_64-linux-gn
u/4.8/../../../x86_64-linux-gnu/crtn.o
/usr/local/google/work/release-test/branches_release_50/Phase3/Release/llvmCore-test-branches_release_50.obj/projects/libunwind/test/Output/libunwind_01.pass.cpp.o: I
n function backtrace(int)': /usr/local/google/work/release-test/branches_release_50/llvm.src/projects/libunwind/test/libunwind_01.pass.cpp:(.text+0x19): undefined reference to unw_getcontext'
/usr/local/google/work/release-test/branches_release_50/llvm.src/projects/libunwind/test/libunwind_01.pass.cpp:(.text+0x32): undefined reference to unw_init_local' /usr/local/google/work/release-test/branches_release_50/llvm.src/projects/libunwind/test/libunwind_01.pass.cpp:(.text+0x74): undefined reference to unw_step'
clang-5.0: error: linker command failed with exit code 1 (use -v to see invocation)

Compilation failed unexpectedly!

[zmodem]

assigned to @compnerd

[zmodem]

phosek or jroelofs, maybe you can take a look?

[llvmbot]

'-nodefaultlibs', '-lc++', '
-lc++abi', '-lm', '-lgcc_s', '-lgcc', '-lpthread', '-lc', '-lgcc_s', '-lgcc']

hmmmm.... it's not even testing the libunwind it just built.

[llvmbot]

untested fix for linux
This /should/ fix it on Linux. Patch is untested though.

FreeBSD and Darwin, however will still continue to test the wrong unwinder, given how libcxx/utils/libcxx/test/target_info.py is set up (those platforms don't respect config.llvm_unwinder).

[Artem-B]

CUDA buildbot runs into the same problem: http://lab.llvm.org:8011/builders/clang-cuda-build/builds/10907/steps/ninja%20check%201

The patch appears to fix this problem in my private tree.

[zmodem]

Created attachment 18830 [details]
untested fix for linux

This /should/ fix it on Linux. Patch is untested though.

FreeBSD and Darwin, however will still continue to test the wrong unwinder,
given how libcxx/utils/libcxx/test/target_info.py is set up (those platforms
don't respect config.llvm_unwinder).

Want to upload that to a code review? Sounds like it worked for Artem at least.

[llvmbot]

https://reviews.llvm.org/D35848

[zmodem]

https://reviews.llvm.org/D35848

I've merged that to 5.0 in r309150. Let's see if it helps.

[Artem-B]

CUDA buildbot is green again! Thank you.

[rovka]

Hi,

The libunwind_01.pass.cpp and libunwind_02.pass.cpp tests are still failing on ARM and AArch64:

08:10:57.785 FAIL: libunwind :: libunwind_01.pass.cpp (41089 of 42319)
08:10:57.785 ******************** TEST 'libunwind :: libunwind_01.pass.cpp' FAILED ********************
08:10:57.785 Compiled With: ['/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase2/Release/llvmCore-5.0.0-rc1.install/usr/local/bin/clang++', '-o', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/libunwind_01.pass.cpp.o', '-x', 'c++', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/llvm.src/projects/libunwind/test/libunwind_01.pass.cpp', '-c', '-v', '-D_LIBCPP_DISABLE_AVAILABILITY', '-Werror=thread-safety', '-DLIBUNWIND_NO_TIMER', '-fno-exceptions', '-DLIBUNWIND_HAS_NO_EXCEPTIONS', '-std=c++1z', '-I/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/llvm.src/projects/libunwind/include', '-D__STDC_FORMAT_MACROS', '-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-Itest/support', '-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER', '-Wall', '-Wextra', '-Werror', '-Wuser-defined-warnings', '-Wshadow', '-Wno-unused-command-line-argument', '-Wno-attributes', '-Wno-pessimizing-move', '-Wno-c++11-extensions', '-Wno-user-defined-literals', '-Wno-noexcept-type', '-Wno-aligned-allocation-unavailable', '-Wsign-compare', '-Wunused-variable', '-Wunused-parameter', '-Wunreachable-code', '-Wno-conversion', '-Wno-unused-local-typedef', '-Wno-#warnings', '-c', '&&', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase2/Release/llvmCore-5.0.0-rc1.install/usr/local/bin/clang++', '-o', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/libunwind_01.pass.cpp.exe', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/libunwind_01.pass.cpp.o', '-v', '-D_LIBCPP_DISABLE_AVAILABILITY', '-L/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/./lib', '-Wl,-rpath,/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/./lib', '-nodefaultlibs', '-lc++', '-lc++abi', '-lm', '-lpthread', '-lc', '-lunwind', '-ldl', '-lgcc']
08:10:57.785 Command: ['/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/libunwind_01.pass.cpp.exe']
08:10:57.785 Exit Code: -6
08:10:57.785
08:10:57.785 Compiled test failed unexpectedly!
08:10:57.785 ********************
08:10:57.838 Testing: 0 .. 10.. 20.. 30.. 40.. 50.. 60.. 70.. 80.. 90.
08:10:57.838 FAIL: libunwind :: libunwind_02.pass.cpp (41090 of 42319)
08:10:57.838 ******************** TEST 'libunwind :: libunwind_02.pass.cpp' FAILED ********************
08:10:57.838 Compiled With: ['/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase2/Release/llvmCore-5.0.0-rc1.install/usr/local/bin/clang++', '-o', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/libunwind_02.pass.cpp.o', '-x', 'c++', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/llvm.src/projects/libunwind/test/libunwind_02.pass.cpp', '-c', '-v', '-D_LIBCPP_DISABLE_AVAILABILITY', '-Werror=thread-safety', '-DLIBUNWIND_NO_TIMER', '-fno-exceptions', '-DLIBUNWIND_HAS_NO_EXCEPTIONS', '-std=c++1z', '-I/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/llvm.src/projects/libunwind/include', '-D__STDC_FORMAT_MACROS', '-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-Itest/support', '-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER', '-Wall', '-Wextra', '-Werror', '-Wuser-defined-warnings', '-Wshadow', '-Wno-unused-command-line-argument', '-Wno-attributes', '-Wno-pessimizing-move', '-Wno-c++11-extensions', '-Wno-user-defined-literals', '-Wno-noexcept-type', '-Wno-aligned-allocation-unavailable', '-Wsign-compare', '-Wunused-variable', '-Wunused-parameter', '-Wunreachable-code', '-Wno-conversion', '-Wno-unused-local-typedef', '-Wno-#warnings', '-c', '&&', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase2/Release/llvmCore-5.0.0-rc1.install/usr/local/bin/clang++', '-o', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/libunwind_02.pass.cpp.exe', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/libunwind_02.pass.cpp.o', '-v', '-D_LIBCPP_DISABLE_AVAILABILITY', '-L/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/./lib', '-Wl,-rpath,/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/./lib', '-nodefaultlibs', '-lc++', '-lc++abi', '-lm', '-lpthread', '-lc', '-lunwind', '-ldl', '-lgcc']
08:10:57.838 Command: ['/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/libunwind_02.pass.cpp.exe']
08:10:57.838 Exit Code: -6
08:10:57.838
08:10:57.838 Compiled test failed unexpectedly!

In addition, on ARM we have a failure in the alinment.pass.cpp test:
08:10:57.489 FAIL: libunwind :: alignment.pass.cpp (41086 of 42319)
08:10:57.489 ******************** TEST 'libunwind :: alignment.pass.cpp' FAILED ********************
08:10:57.489 Command: ['/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase2/Release/llvmCore-5.0.0-rc1.install/usr/local/bin/clang++', '-o', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/alignment.pass.cpp.o', '-x', 'c++', '/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/llvm.src/projects/libunwind/test/alignment.pass.cpp', '-c', '-v', '-D_LIBCPP_DISABLE_AVAILABILITY', '-Werror=thread-safety', '-DLIBUNWIND_NO_TIMER', '-fno-exceptions', '-DLIBUNWIND_HAS_NO_EXCEPTIONS', '-std=c++1z', '-I/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/llvm.src/projects/libunwind/include', '-D__STDC_FORMAT_MACROS', '-D__STDC_LIMIT_MACROS', '-D__STDC_CONSTANT_MACROS', '-Itest/support', '-D_LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER', '-Wall', '-Wextra', '-Werror', '-Wuser-defined-warnings', '-Wshadow', '-Wno-unused-command-line-argument', '-Wno-attributes', '-Wno-pessimizing-move', '-Wno-c++11-extensions', '-Wno-user-defined-literals', '-Wno-noexcept-type', '-Wno-aligned-allocation-unavailable', '-Wsign-compare', '-Wunused-variable', '-Wunused-parameter', '-Wunreachable-code', '-Wno-conversion', '-Wno-unused-local-typedef', '-Wno-#warnings', '-c']
08:10:57.489 Exit Code: 1
08:10:57.489 Standard Error:
08:10:57.489 --
08:10:57.489 clang version 5.0.0 (tags/RELEASE_500/rc1)
08:10:57.489 Target: armv7l-unknown-linux-gnueabihf
08:10:57.489 Thread model: posix
08:10:57.489 InstalledDir: /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase2/Release/llvmCore-5.0.0-rc1.install/usr/local/bin
08:10:57.489 Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/5
08:10:57.489 Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/5.4.0
08:10:57.489 Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/6
08:10:57.489 Found candidate GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/6.0.0
08:10:57.489 Selected GCC installation: /usr/lib/gcc/arm-linux-gnueabihf/5.4.0
08:10:57.489 Candidate multilib: .;@m32
08:10:57.489 Selected multilib: .;@m32
08:10:57.489 "/home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase2/Release/llvmCore-5.0.0-rc1.install/usr/local/bin/clang-5.0" -cc1 -triple armv7-unknown-linux-gnueabihf -emit-obj -mrelax-all -disable-free -disable-llvm-verifier -discard-value-names -main-file-name alignment.pass.cpp -mrelocation-model static -mthread-model posix -mdisable-fp-elim -fmath-errno -masm-verbose -mconstructor-aliases -fuse-init-array -target-cpu generic -target-abi aapcs-linux -mfloat-abi hard -v -dwarf-column-info -debugger-tuning=gdb -coverage-notes-file /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/alignment.pass.cpp.gcno -resource-dir /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase2/Release/llvmCore-5.0.0-rc1.install/usr/local/lib/clang/5.0.0 -D _LIBCPP_DISABLE_AVAILABILITY -D LIBUNWIND_NO_TIMER -D LIBUNWIND_HAS_NO_EXCEPTIONS -I /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/llvm.src/projects/libunwind/include -D __STDC_FORMAT_MACROS -D __STDC_LIMIT_MACROS -D __STDC_CONSTANT_MACROS -I test/support -D _LIBCPP_HAS_NO_PRAGMA_SYSTEM_HEADER -internal-isystem /usr/lib/gcc/arm-linux-gnueabihf/5.4.0/../../../../include/c++/5.4.0 -internal-isystem /usr/lib/gcc/arm-linux-gnueabihf/5.4.0/../../../../include/arm-linux-gnueabihf/c++/5.4.0 -internal-isystem /usr/lib/gcc/arm-linux-gnueabihf/5.4.0/../../../../include/arm-linux-gnueabihf/c++/5.4.0 -internal-isystem /usr/lib/gcc/arm-linux-gnueabihf/5.4.0/../../../../include/c++/5.4.0/backward -internal-isystem /usr/local/include -internal-isystem /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase2/Release/llvmCore-5.0.0-rc1.install/usr/local/lib/clang/5.0.0/include -internal-externc-isystem /usr/include/arm-linux-gnueabihf -internal-externc-isystem /include -internal-externc-isystem /usr/include -Werror=thread-safety -Wall -Wextra -Werror -Wuser-defined-warnings -Wshadow -Wno-unused-command-line-argument -Wno-attributes -Wno-pessimizing-move -Wno-c++11-extensions -Wno-user-defined-literals -Wno-noexcept-type -Wno-aligned-allocation-unavailable -Wsign-compare -Wunused-variable -Wunused-parameter -Wunreachable-code -Wno-conversion -Wno-unused-local-typedef -Wno-#warnings -std=c++1z -fdeprecated-macro -fdebug-compilation-dir /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test -ferror-limit 19 -fmessage-length 0 -fallow-half-arguments-and-returns -fno-signed-char -fobjc-runtime=gcc -fdiagnostics-show-option -o /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase3/Release/llvmCore-5.0.0-rc1.obj/projects/libunwind/test/Output/alignment.pass.cpp.o -x c++ /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/llvm.src/projects/libunwind/test/alignment.pass.cpp
08:10:57.489 clang -cc1 version 5.0.0 based upon LLVM 5.0.0git-077c5db default target armv7l-unknown-linux-gnueabihf
08:10:57.489 ignoring nonexistent directory "test/support"
08:10:57.489 ignoring nonexistent directory "/include"
08:10:57.489 ignoring duplicate directory "/usr/lib/gcc/arm-linux-gnueabihf/5.4.0/../../../../include/arm-linux-gnueabihf/c++/5.4.0"
08:10:57.489 #include "..." search starts here:
08:10:57.489 #include <...> search starts here:
08:10:57.489 /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/llvm.src/projects/libunwind/include
08:10:57.489 /usr/lib/gcc/arm-linux-gnueabihf/5.4.0/../../../../include/c++/5.4.0
08:10:57.489 /usr/lib/gcc/arm-linux-gnueabihf/5.4.0/../../../../include/arm-linux-gnueabihf/c++/5.4.0
08:10:57.489 /usr/lib/gcc/arm-linux-gnueabihf/5.4.0/../../../../include/c++/5.4.0/backward
08:10:57.489 /usr/local/include
08:10:57.489 /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/Phase2/Release/llvmCore-5.0.0-rc1.install/usr/local/lib/clang/5.0.0/include
08:10:57.489 /usr/include/arm-linux-gnueabihf
08:10:57.489 /usr/include
08:10:57.489 End of search list.
08:10:57.489 /home/tcwg-buildslave/workspace/tcwg-llvm-release/tcwg-tk1_32-build/rc1/llvm.src/projects/libunwind/test/alignment.pass.cpp:17:1: error: static_assert failed ""
08:10:57.489 static_assert(alignof(_Unwind_Exception) == alignof(MaxAligned), "");
08:10:57.489 ^ ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
08:10:57.489 1 error generated.
08:10:57.489 --
08:10:57.489
08:10:57.489 Compilation failed unexpectedly!

[zmodem]

Slaeem: maybe #​9 is due to your r309226?

[compnerd]

Yeah, it would change the alignment. I'll fix this in the morning.

[compnerd]

The alignment issue should be fixed with SVN r311562. Could you pull that into the 5.0 branch please Hans? I'll have a second change for clang as well.

[zmodem]

The alignment issue should be fixed with SVN r311562. Could you pull that
into the 5.0 branch please Hans? I'll have a second change for clang as
well.

What's the change for clang?

[zmodem]

The alignment issue should be fixed with SVN r311562. Could you pull that
into the 5.0 branch please Hans? I'll have a second change for clang as
well.

What's the change for clang?

I guess that's r311563