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Leslie Zhai via llvm-dev

2018-Sep-10 16:20 UTC

[llvm-dev] OpenJDK8 failed to work after compiled by LLVM 8 for X86

Hi all,

OpenJDK8 jdk8u-dev[1] is just able to work after compiled with LLVM 
3.9.1 for X86:

$ 
./build/linux-x86_64-normal-server-slowdebug/images/j2sdk-image/bin/java 
-version
openjdk version "1.8.0-internal-debug"
OpenJDK Runtime Environment (build 
1.8.0-internal-debug-xiangzhai_2018_09_09_21_08-b00)
OpenJDK 64-Bit Server VM (build 25.71-b00-debug, mixed mode)

$ strings 
./build/linux-x86_64-normal-server-slowdebug/images/j2sdk-image/bin/java 
| grep clang
clang version 3.9.1 (tags/RELEASE_391/final)

But it failed to work after compiled with LLVM 8 for X86:

$ 
./build/linux-x86_64-normal-server-fastdebug/images/j2sdk-image/bin/java 
-version
Segmentation fault

$ gdb --ex run --args 
./build/linux-x86_64-normal-server-fastdebug/images/j2sdk-image/bin/java 
-version
GNU gdb (GDB) Fedora 7.12.1-48.fc25
...
Starting program: 
/home/xiangzhai/project/jdk8u-llvm/build/linux-x86_64-normal-server-fastdebug/images/j2sdk-image/bin/java
-version
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".

Program received signal SIGSEGV, Segmentation fault.
[ Legend: Modified register | Code | Heap | Stack | String ]
───────────────────────────────────────────────────────────────────────────────────────────────[
registers ]────
$rax   : 0x0
$rbx   : 0x0
$rcx   : 0x7ffff7315eb0      →  0x00007ffff6ae30a0  → 
<NativeCallStack::print_on(outputStream*)+0> xor edx, edx
$rdx   : 0x0
$rsp   : 0x7fffffff9328      →  0x00007ffff6a76822  → 
<MemTracker::init_tracking_level()+178> mov edi, ebx
$rbp   : 0x7fffffff93c0      →  0x00007fffffff94f0  → 
0x00007fffffff9510  →  0x0000000000000002
$rsi   : 0x0
$rdi   : 0x7ffff7315e70      →  0x00007ffff7315eb0  → 
0x00007ffff6ae30a0  → <NativeCallStack::print_on(outputStream*)+0> xor 
edx, edx
$rip   : 0x7ffff6ae2f5b      → <NativeCallStack::NativeCallStack(int,+0> 
mov QWORD PTR [rdi], rcx
$r8    : 0x1
$r9    : 0xf
$r10   : 0x64
$r11   : 0x0
$r12   : 0x7fffffffdc88      →  0x00007fffffffe04c  → 
"/home/xiangzhai/project/jdk8u-llvm/build/linux-x86[...]"
$r13   : 0x7fffffffdca0      →  0x00007fffffffe0bf  → "XDG_VTNR=1"
$r14   : 0x7fffffff9330      →  "NMT_LEVEL_10535"
$r15   : 0x6
$eflags: [carry parity adjust zero sign trap INTERRUPT direction 
overflow RESUME virtualx86 identification]
$ss: 0x002b  $ds: 0x0000  $cs: 0x0033  $es: 0x0000  $gs: 0x0000 $fs: 0x0000
───────────────────────────────────────────────────────────────────────────────────────────────────[
stack ]────
0x00007fffffff9328│+0x00: 0x00007ffff6a76822  → 
<MemTracker::init_tracking_level()+178> mov edi, ebx    ← $rsp
0x00007fffffff9330│+0x08: "NMT_LEVEL_10535"      ← $r14
0x00007fffffff9338│+0x10: 0x0035333530315f4c ("L_10535"?)
0x00007fffffff9340│+0x18: 0x0000000000000001
0x00007fffffff9348│+0x20: 0x0000000000602190  → 0x00007ffff5eb7000  →  
0x00010102464c457f
0x00007fffffff9350│+0x28: 0x0000000000000004
0x00007fffffff9358│+0x30: 0x000000066474e551
0x00007fffffff9360│+0x38: 0x0000000000000000
────────────────────────────────────────────────────────────────────────────────────────[
code:i386:x86-64 ]────
    0x7ffff6ae2f4b <print_owned_locks_on_error(outputStream*)+187> 
add    eax, 0x1f0f00
    0x7ffff6ae2f50 <NativeCallStack::NativeCallStack(int,+0> mov    rcx, 
QWORD PTR [rip+0x842781]        # 0x7ffff73256d8
    0x7ffff6ae2f57 <NativeCallStack::NativeCallStack(int,+0> add    rcx, 
0x10
  → 0x7ffff6ae2f5b <NativeCallStack::NativeCallStack(int,+0> mov    
QWORD PTR [rdi], rcx
    0x7ffff6ae2f5e <NativeCallStack::NativeCallStack(int,+0> mov    
DWORD PTR [rdi+0x28], 0x0
    0x7ffff6ae2f65 <NativeCallStack::NativeCallStack(int,+0> add    rdi,
0x8
    0x7ffff6ae2f69 <NativeCallStack::NativeCallStack(int,+0> test   edx,
edx
    0x7ffff6ae2f6b <NativeCallStack::NativeCallStack(int,+0> je     
0x7ffff6ae2f7b <NativeCallStack::NativeCallStack(int, bool)+43>
    0x7ffff6ae2f6d <NativeCallStack::NativeCallStack(int,+0> mov    eax,
esi
─────────[ 
source:/home/xiangzhai/project/jdk8u-llvm/hotspot/src/share/vm/utilities/nativeCallStack.cpp+33
]────
      28  #include "utilities/nativeCallStack.hpp"
      29
      30  const NativeCallStack NativeCallStack::EMPTY_STACK(0, false);
      31
      32  NativeCallStack::NativeCallStack(int toSkip, bool fillStack) :
  →   33    _hash_value(0) {
      34
      35  #if !PLATFORM_NATIVE_STACK_WALKING_SUPPORTED
      36    fillStack = false;
      37  #endif
      38
─────────────────────────────────────────────────────────────────────────────────────────────────[
threads ]────
[#0] Id 1, Name: "java", stopped, reason: SIGSEGV
───────────────────────────────────────────────────────────────────────────────────────────────────[
trace ]────
[#0] 0x7ffff6ae2f5b → Name: 
NativeCallStack::NativeCallStack(this=0x7ffff7315e70 
<NativeCallStack::EMPTY_STACK>, toSkip=0x0, fillStack=0x0)
[#1] 0x7ffff6a76822 → Name: MemTracker::init_tracking_level()
[#2] 0x7ffff62eff49 → Name: MemTracker::tracking_level()
[#3] 0x7ffff62eff49 → Name: ResourceObj::operator new(size=0x20, 
type=ResourceObj::STACK_OR_EMBEDDED, flags=<optimized out>)
[#4] 0x7ffff61369ec → Name: _GLOBAL__sub_I_c1_Greedy.cpp()
[#5] 0x7ffff7de7d9a → Name: call_init(l=<optimized out>, argc=0x2, 
argv=0x7fffffffdc88, env=0x7fffffffdca0)
[#6] 0x7ffff7de7eab → Name: call_init(env=0x7fffffffdca0, 
argv=0x7fffffffdc88, argc=0x2, l=<optimized out>)
[#7] 0x7ffff7de7eab → Name: _dl_init(main_map=0x602190, argc=0x2, 
argv=0x7fffffffdc88, env=0x7fffffffdca0)
[#8] 0x7ffff7dece46 → Name: dl_open_worker(a=0x7fffffff97e0)
[#9] 0x7ffff7de7c44 → Name: _dl_catch_error(objname=0x7fffffff97d0, 
errstring=0x7fffffff97d8, mallocedp=0x7fffffff97cf, 
operate=0x7ffff7decae0 <dl_open_worker>, args=0x7fffffff97e0)
────────────────────────────────────────────────────────────────────────────────────────────────────────────────
0x00007ffff6ae2f5b in NativeCallStack::NativeCallStack 
(this=0x7ffff7315e70 <NativeCallStack::EMPTY_STACK>, toSkip=0x0, 
fillStack=0x0) at 
/home/xiangzhai/project/jdk8u-llvm/hotspot/src/share/vm/utilities/nativeCallStack.cpp:33
33        _hash_value(0) {
gef➤  c
Continuing.

Program terminated with signal SIGSEGV, Segmentation fault.
The program no longer exists.
gef➤

----- 8< -------- 8< -------- 8< -------- 8< -------- 8< --------
8< ---

I started to use and contribute clang static analyzer[2] just for 
finding the bugs for open source software from LLVM 3.x,  perhaps it is 
a bug of LLVM 8,  because jdk8u is just able to print out '-version' 
after compiled with llvm-3.9.1,  I will rebuild the LLVM 8 again,  then 
rebuild jdk8u for triple check.

1. Workaround-compile-with-llvm.patch 
https://raw.githubusercontent.com/xiangzhai/jdk8u-dev/master/Workaround-compile-with-llvm.patch

2. 
https://github.com/llvm-mirror/clang/commit/a530e823ed2793ac149de7a984014e242a787682#diff-ff9160d4628cb9b6186559837c2c8668

3. The build option of LLVM 8 (bootstrap with LLVM 3.9.1):

cmake .. -DCMAKE_BUILD_TYPE=Release \
     -DCMAKE_C_COMPILER=clang \
     -DCMAKE_CXX_COMPILER=clang++ \
     -DCMAKE_C_FLAGS="-fPIC" \
     -DCMAKE_CXX_FLAGS="-std=c++11 -fPIC" \
     -DLLVM_BUILD_LLVM_DYLIB=ON \
     -DLLVM_LINK_LLVM_DYLIB=ON \
     -DLLVM_INSTALL_UTILS=ON \
     -DLLVM_ENABLE_RTTI=ON \
     -DLLVM_ENABLE_FFI=ON \
     -DLLVM_ENABLE_EH=ON \
     -DLLVM_BUILD_TESTS=ON \
     -DLLVM_BUILD_DOCS=OFF \
     -DLLVM_ENABLE_SPHINX=OFF \
     -DLLVM_ENABLE_DOXYGEN=OFF \
     -DLLDB_DISABLE_LIBEDIT=1 \
     -DSPHINX_WARNINGS_AS_ERRORS=OFF \
     -DFFI_INCLUDE_DIR=$(pkg-config --variable=includedir libffi) \
     -DFFI_LIBRARY_DIR:PATH="$(pkg-config --variable=libdir libffi)" \
     -DLLVM_BINUTILS_INCDIR=/usr/include \
     -DLLVM_LIBDIR_SUFFIX=64 \
     -DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=ON \
     -DLIBUNWIND_ENABLE_SHARED=ON \
     -DLIBCXXABI_USE_LLVM_UNWINDER=ON \
     -DLLDB_TEST_C_COMPILER=clang \
     -DLLDB_TEST_CXX_COMPILER=clang++ \
     -DLLVM_DEFAULT_TARGET_TRIPLE="x86_64-redhat-linux" \
     -DCLANG_VENDOR="LLVM China"

4. $ clang -v
LLVM China clang version 8.0.0 (git at github.com:llvm-mirror/clang.git 
81ef98628ebf5186d746c0986dcbf5073e842043) 
(git at github.com:llvm-mirror/llvm.git 
e1aac9723d55497e74d83d216329f08d9842e494) (based on LLVM 8.0.0svn)
Target: x86_64-redhat-linux
Thread model: posix
InstalledDir: /usr/bin
Found candidate GCC installation: 
/usr/bin/../lib/gcc/i686-redhat-linux/6.4.1
Found candidate GCC installation: 
/usr/bin/../lib/gcc/x86_64-redhat-linux/6.4.1
Found candidate GCC installation: /usr/lib/gcc/i686-redhat-linux/6.4.1
Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/6.4.1
Selected GCC installation: /usr/bin/../lib/gcc/x86_64-redhat-linux/6.4.1
Candidate multilib: .;@m64
Candidate multilib: 32;@m32
Selected multilib: .;@m64

-- 
Regards,
Leslie Zhai

Dimitry Andric via llvm-dev

2018-Sep-10 16:59 UTC

head link

[llvm-dev] OpenJDK8 failed to work after compiled by LLVM 8 for X86

Hi Leslie,

This is likely the same problem as was reported in
https://bugs.freebsd.org/225054#c8, and fixed by the following patch:

https://svnweb.freebsd.org/ports/head/java/openjdk8/files/patch-hotspot_src_share_vm_services_memTracker.cpp?view=markup&pathrev=459368

Can you please try that out, and see if it fixes it for you too?

-Dimitry
> On 10 Sep 2018, at 18:20, Leslie Zhai via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
> 
> Hi all,
> 
> OpenJDK8 jdk8u-dev[1] is just able to work after compiled with LLVM 3.9.1
for X86:
> 
> $ ./build/linux-x86_64-normal-server-slowdebug/images/j2sdk-image/bin/java
-version
> openjdk version "1.8.0-internal-debug"
> OpenJDK Runtime Environment (build
1.8.0-internal-debug-xiangzhai_2018_09_09_21_08-b00)
> OpenJDK 64-Bit Server VM (build 25.71-b00-debug, mixed mode)
> 
> $ strings
./build/linux-x86_64-normal-server-slowdebug/images/j2sdk-image/bin/java | grep
clang
> clang version 3.9.1 (tags/RELEASE_391/final)
> 
> But it failed to work after compiled with LLVM 8 for X86:
> 
> $ ./build/linux-x86_64-normal-server-fastdebug/images/j2sdk-image/bin/java
-version
> Segmentation fault
> 
> $ gdb --ex run --args
./build/linux-x86_64-normal-server-fastdebug/images/j2sdk-image/bin/java
-version
> GNU gdb (GDB) Fedora 7.12.1-48.fc25
> ...
> Starting program:
/home/xiangzhai/project/jdk8u-llvm/build/linux-x86_64-normal-server-fastdebug/images/j2sdk-image/bin/java
-version
> [Thread debugging using libthread_db enabled]
> Using host libthread_db library "/lib64/libthread_db.so.1".
> 
> Program received signal SIGSEGV, Segmentation fault.
> [ Legend: Modified register | Code | Heap | Stack | String ]
>
───────────────────────────────────────────────────────────────────────────────────────────────[
registers ]────
> $rax   : 0x0
> $rbx   : 0x0
> $rcx   : 0x7ffff7315eb0      →  0x00007ffff6ae30a0  →
<NativeCallStack::print_on(outputStream*)+0> xor edx, edx
> $rdx   : 0x0
> $rsp   : 0x7fffffff9328      →  0x00007ffff6a76822  →
<MemTracker::init_tracking_level()+178> mov edi, ebx
> $rbp   : 0x7fffffff93c0      →  0x00007fffffff94f0  → 0x00007fffffff9510  →
0x0000000000000002
> $rsi   : 0x0
> $rdi   : 0x7ffff7315e70      →  0x00007ffff7315eb0  → 0x00007ffff6ae30a0  →
<NativeCallStack::print_on(outputStream*)+0> xor edx, edx
> $rip   : 0x7ffff6ae2f5b      →
<NativeCallStack::NativeCallStack(int,+0> mov QWORD PTR [rdi], rcx
> $r8    : 0x1
> $r9    : 0xf
> $r10   : 0x64
> $r11   : 0x0
> $r12   : 0x7fffffffdc88      →  0x00007fffffffe04c  →
"/home/xiangzhai/project/jdk8u-llvm/build/linux-x86[...]"
> $r13   : 0x7fffffffdca0      →  0x00007fffffffe0bf  →
"XDG_VTNR=1"
> $r14   : 0x7fffffff9330      →  "NMT_LEVEL_10535"
> $r15   : 0x6
> $eflags: [carry parity adjust zero sign trap INTERRUPT direction overflow
RESUME virtualx86 identification]
> $ss: 0x002b  $ds: 0x0000  $cs: 0x0033  $es: 0x0000  $gs: 0x0000 $fs: 0x0000
>
───────────────────────────────────────────────────────────────────────────────────────────────────[
stack ]────
> 0x00007fffffff9328│+0x00: 0x00007ffff6a76822  →
<MemTracker::init_tracking_level()+178> mov edi, ebx    ← $rsp
> 0x00007fffffff9330│+0x08: "NMT_LEVEL_10535"      ← $r14
> 0x00007fffffff9338│+0x10: 0x0035333530315f4c ("L_10535"?)
> 0x00007fffffff9340│+0x18: 0x0000000000000001
> 0x00007fffffff9348│+0x20: 0x0000000000602190  → 0x00007ffff5eb7000  → 
0x00010102464c457f
> 0x00007fffffff9350│+0x28: 0x0000000000000004
> 0x00007fffffff9358│+0x30: 0x000000066474e551
> 0x00007fffffff9360│+0x38: 0x0000000000000000
>
────────────────────────────────────────────────────────────────────────────────────────[
code:i386:x86-64 ]────
>    0x7ffff6ae2f4b <print_owned_locks_on_error(outputStream*)+187> add
eax, 0x1f0f00
>    0x7ffff6ae2f50 <NativeCallStack::NativeCallStack(int,+0> mov   
rcx, QWORD PTR [rip+0x842781]        # 0x7ffff73256d8
>    0x7ffff6ae2f57 <NativeCallStack::NativeCallStack(int,+0> add   
rcx, 0x10
>  → 0x7ffff6ae2f5b <NativeCallStack::NativeCallStack(int,+0> mov   
QWORD PTR [rdi], rcx
>    0x7ffff6ae2f5e <NativeCallStack::NativeCallStack(int,+0> mov   
DWORD PTR [rdi+0x28], 0x0
>    0x7ffff6ae2f65 <NativeCallStack::NativeCallStack(int,+0> add   
rdi, 0x8
>    0x7ffff6ae2f69 <NativeCallStack::NativeCallStack(int,+0> test  
edx, edx
>    0x7ffff6ae2f6b <NativeCallStack::NativeCallStack(int,+0> je    
0x7ffff6ae2f7b <NativeCallStack::NativeCallStack(int, bool)+43>
>    0x7ffff6ae2f6d <NativeCallStack::NativeCallStack(int,+0> mov   
eax, esi
> ─────────[
source:/home/xiangzhai/project/jdk8u-llvm/hotspot/src/share/vm/utilities/nativeCallStack.cpp+33
]────
>      28  #include "utilities/nativeCallStack.hpp"
>      29
>      30  const NativeCallStack NativeCallStack::EMPTY_STACK(0, false);
>      31
>      32  NativeCallStack::NativeCallStack(int toSkip, bool fillStack) :
>  →   33    _hash_value(0) {
>      34
>      35  #if !PLATFORM_NATIVE_STACK_WALKING_SUPPORTED
>      36    fillStack = false;
>      37  #endif
>      38
>
─────────────────────────────────────────────────────────────────────────────────────────────────[
threads ]────
> [#0] Id 1, Name: "java", stopped, reason: SIGSEGV
>
───────────────────────────────────────────────────────────────────────────────────────────────────[
trace ]────
> [#0] 0x7ffff6ae2f5b → Name:
NativeCallStack::NativeCallStack(this=0x7ffff7315e70
<NativeCallStack::EMPTY_STACK>, toSkip=0x0, fillStack=0x0)
> [#1] 0x7ffff6a76822 → Name: MemTracker::init_tracking_level()
> [#2] 0x7ffff62eff49 → Name: MemTracker::tracking_level()
> [#3] 0x7ffff62eff49 → Name: ResourceObj::operator new(size=0x20,
type=ResourceObj::STACK_OR_EMBEDDED, flags=<optimized out>)
> [#4] 0x7ffff61369ec → Name: _GLOBAL__sub_I_c1_Greedy.cpp()
> [#5] 0x7ffff7de7d9a → Name: call_init(l=<optimized out>, argc=0x2,
argv=0x7fffffffdc88, env=0x7fffffffdca0)
> [#6] 0x7ffff7de7eab → Name: call_init(env=0x7fffffffdca0,
argv=0x7fffffffdc88, argc=0x2, l=<optimized out>)
> [#7] 0x7ffff7de7eab → Name: _dl_init(main_map=0x602190, argc=0x2,
argv=0x7fffffffdc88, env=0x7fffffffdca0)
> [#8] 0x7ffff7dece46 → Name: dl_open_worker(a=0x7fffffff97e0)
> [#9] 0x7ffff7de7c44 → Name: _dl_catch_error(objname=0x7fffffff97d0,
errstring=0x7fffffff97d8, mallocedp=0x7fffffff97cf, operate=0x7ffff7decae0
<dl_open_worker>, args=0x7fffffff97e0)
>
────────────────────────────────────────────────────────────────────────────────────────────────────────────────
> 0x00007ffff6ae2f5b in NativeCallStack::NativeCallStack (this=0x7ffff7315e70
<NativeCallStack::EMPTY_STACK>, toSkip=0x0, fillStack=0x0) at
/home/xiangzhai/project/jdk8u-llvm/hotspot/src/share/vm/utilities/nativeCallStack.cpp:33
> 33        _hash_value(0) {
> gef➤  c
> Continuing.
> 
> Program terminated with signal SIGSEGV, Segmentation fault.
> The program no longer exists.
> gef➤
> 
> ----- 8< -------- 8< -------- 8< -------- 8< -------- 8<
-------- 8< ---
> 
> I started to use and contribute clang static analyzer[2] just for finding
the bugs for open source software from LLVM 3.x,  perhaps it is a bug of LLVM 8,
because jdk8u is just able to print out '-version' after compiled with
llvm-3.9.1,  I will rebuild the LLVM 8 again,  then rebuild jdk8u for triple
check.
> 
> 1. Workaround-compile-with-llvm.patch
https://raw.githubusercontent.com/xiangzhai/jdk8u-dev/master/Workaround-compile-with-llvm.patch
> 
> 2.
https://github.com/llvm-mirror/clang/commit/a530e823ed2793ac149de7a984014e242a787682#diff-ff9160d4628cb9b6186559837c2c8668
> 
> 3. The build option of LLVM 8 (bootstrap with LLVM 3.9.1):
> 
> cmake .. -DCMAKE_BUILD_TYPE=Release \
>     -DCMAKE_C_COMPILER=clang \
>     -DCMAKE_CXX_COMPILER=clang++ \
>     -DCMAKE_C_FLAGS="-fPIC" \
>     -DCMAKE_CXX_FLAGS="-std=c++11 -fPIC" \
>     -DLLVM_BUILD_LLVM_DYLIB=ON \
>     -DLLVM_LINK_LLVM_DYLIB=ON \
>     -DLLVM_INSTALL_UTILS=ON \
>     -DLLVM_ENABLE_RTTI=ON \
>     -DLLVM_ENABLE_FFI=ON \
>     -DLLVM_ENABLE_EH=ON \
>     -DLLVM_BUILD_TESTS=ON \
>     -DLLVM_BUILD_DOCS=OFF \
>     -DLLVM_ENABLE_SPHINX=OFF \
>     -DLLVM_ENABLE_DOXYGEN=OFF \
>     -DLLDB_DISABLE_LIBEDIT=1 \
>     -DSPHINX_WARNINGS_AS_ERRORS=OFF \
>     -DFFI_INCLUDE_DIR=$(pkg-config --variable=includedir libffi) \
>     -DFFI_LIBRARY_DIR:PATH="$(pkg-config --variable=libdir
libffi)" \
>     -DLLVM_BINUTILS_INCDIR=/usr/include \
>     -DLLVM_LIBDIR_SUFFIX=64 \
>     -DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=ON \
>     -DLIBUNWIND_ENABLE_SHARED=ON \
>     -DLIBCXXABI_USE_LLVM_UNWINDER=ON \
>     -DLLDB_TEST_C_COMPILER=clang \
>     -DLLDB_TEST_CXX_COMPILER=clang++ \
>     -DLLVM_DEFAULT_TARGET_TRIPLE="x86_64-redhat-linux" \
>     -DCLANG_VENDOR="LLVM China"
> 
> 4. $ clang -v
> LLVM China clang version 8.0.0 (git at github.com:llvm-mirror/clang.git
81ef98628ebf5186d746c0986dcbf5073e842043) (git at
github.com:llvm-mirror/llvm.git e1aac9723d55497e74d83d216329f08d9842e494) (based
on LLVM 8.0.0svn)
> Target: x86_64-redhat-linux
> Thread model: posix
> InstalledDir: /usr/bin
> Found candidate GCC installation:
/usr/bin/../lib/gcc/i686-redhat-linux/6.4.1
> Found candidate GCC installation:
/usr/bin/../lib/gcc/x86_64-redhat-linux/6.4.1
> Found candidate GCC installation: /usr/lib/gcc/i686-redhat-linux/6.4.1
> Found candidate GCC installation: /usr/lib/gcc/x86_64-redhat-linux/6.4.1
> Selected GCC installation: /usr/bin/../lib/gcc/x86_64-redhat-linux/6.4.1
> Candidate multilib: .;@m64
> Candidate multilib: 32;@m32
> Selected multilib: .;@m64
> 
> --
> Regards,
> Leslie Zhai
> 
> 
> _______________________________________________
> LLVM Developers mailing list
> llvm-dev at lists.llvm.org
> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
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Leslie Zhai via llvm-dev

2018-Sep-11 01:38 UTC

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[llvm-dev] OpenJDK8 failed to work after compiled by LLVM 8 for X86

Hi Dimitry,

Thanks for your kind response!

Thanks for the commit message of Jung's patch,  I found that the bug had 
been fixed in OpenJDK 12 by Zhengyu 
https://bugs.openjdk.java.net/browse/JDK-8205965  But only backported to 
11.  So Jung could backport it for OpenJDK 8, thanks a lot!

But I argue that the root cause might be in the compiler side, why 
clang-3.9.1, gcc-6.4.1 couldn't reproduce the bug?  And it might be work 
for clang-4.0 https://bugs.openjdk.java.net/browse/JDK-8208494  I will 
test LLVM 5 to check out whether or not reproducible.


在 2018年09月11日 00:59, Dimitry Andric 写道:> Hi Leslie,
>
> This is likely the same problem as was reported in
https://bugs.freebsd.org/225054#c8, and fixed by the following patch:
>
>
https://svnweb.freebsd.org/ports/head/java/openjdk8/files/patch-hotspot_src_share_vm_services_memTracker.cpp?view=markup&pathrev=459368
>
> Can you please try that out, and see if it fixes it for you too?
>
> -Dimitry
>
>> On 10 Sep 2018, at 18:20, Leslie Zhai via llvm-dev <llvm-dev at
lists.llvm.org> wrote:
>>
>> Hi all,
>>
>> OpenJDK8 jdk8u-dev[1] is just able to work after compiled with LLVM
3.9.1 for X86:
>>
>> $
./build/linux-x86_64-normal-server-slowdebug/images/j2sdk-image/bin/java
-version
>> openjdk version "1.8.0-internal-debug"
>> OpenJDK Runtime Environment (build
1.8.0-internal-debug-xiangzhai_2018_09_09_21_08-b00)
>> OpenJDK 64-Bit Server VM (build 25.71-b00-debug, mixed mode)
>>
>> $ strings
./build/linux-x86_64-normal-server-slowdebug/images/j2sdk-image/bin/java | grep
clang
>> clang version 3.9.1 (tags/RELEASE_391/final)
>>
>> But it failed to work after compiled with LLVM 8 for X86:
>>
>> $
./build/linux-x86_64-normal-server-fastdebug/images/j2sdk-image/bin/java
-version
>> Segmentation fault
>>
>> $ gdb --ex run --args
./build/linux-x86_64-normal-server-fastdebug/images/j2sdk-image/bin/java
-version
>> GNU gdb (GDB) Fedora 7.12.1-48.fc25
>> ...
>> Starting program:
/home/xiangzhai/project/jdk8u-llvm/build/linux-x86_64-normal-server-fastdebug/images/j2sdk-image/bin/java
-version
>> [Thread debugging using libthread_db enabled]
>> Using host libthread_db library "/lib64/libthread_db.so.1".
>>
>> Program received signal SIGSEGV, Segmentation fault.
>> [ Legend: Modified register | Code | Heap | Stack | String ]
>>
───────────────────────────────────────────────────────────────────────────────────────────────[
registers ]────
>> $rax   : 0x0
>> $rbx   : 0x0
>> $rcx   : 0x7ffff7315eb0      →  0x00007ffff6ae30a0  →
<NativeCallStack::print_on(outputStream*)+0> xor edx, edx
>> $rdx   : 0x0
>> $rsp   : 0x7fffffff9328      →  0x00007ffff6a76822  →
<MemTracker::init_tracking_level()+178> mov edi, ebx
>> $rbp   : 0x7fffffff93c0      →  0x00007fffffff94f0  →
0x00007fffffff9510  →  0x0000000000000002
>> $rsi   : 0x0
>> $rdi   : 0x7ffff7315e70      →  0x00007ffff7315eb0  →
0x00007ffff6ae30a0  → <NativeCallStack::print_on(outputStream*)+0> xor
edx, edx
>> $rip   : 0x7ffff6ae2f5b      →
<NativeCallStack::NativeCallStack(int,+0> mov QWORD PTR [rdi], rcx
>> $r8    : 0x1
>> $r9    : 0xf
>> $r10   : 0x64
>> $r11   : 0x0
>> $r12   : 0x7fffffffdc88      →  0x00007fffffffe04c  →
"/home/xiangzhai/project/jdk8u-llvm/build/linux-x86[...]"
>> $r13   : 0x7fffffffdca0      →  0x00007fffffffe0bf  →
"XDG_VTNR=1"
>> $r14   : 0x7fffffff9330      →  "NMT_LEVEL_10535"
>> $r15   : 0x6
>> $eflags: [carry parity adjust zero sign trap INTERRUPT direction
overflow RESUME virtualx86 identification]
>> $ss: 0x002b  $ds: 0x0000  $cs: 0x0033  $es: 0x0000  $gs: 0x0000 $fs:
0x0000
>>
───────────────────────────────────────────────────────────────────────────────────────────────────[
stack ]────
>> 0x00007fffffff9328│+0x00: 0x00007ffff6a76822  →
<MemTracker::init_tracking_level()+178> mov edi, ebx    ← $rsp
>> 0x00007fffffff9330│+0x08: "NMT_LEVEL_10535"      ← $r14
>> 0x00007fffffff9338│+0x10: 0x0035333530315f4c ("L_10535"?)
>> 0x00007fffffff9340│+0x18: 0x0000000000000001
>> 0x00007fffffff9348│+0x20: 0x0000000000602190  → 0x00007ffff5eb7000  → 
0x00010102464c457f
>> 0x00007fffffff9350│+0x28: 0x0000000000000004
>> 0x00007fffffff9358│+0x30: 0x000000066474e551
>> 0x00007fffffff9360│+0x38: 0x0000000000000000
>>
────────────────────────────────────────────────────────────────────────────────────────[
code:i386:x86-64 ]────
>>     0x7ffff6ae2f4b
<print_owned_locks_on_error(outputStream*)+187> add    eax, 0x1f0f00
>>     0x7ffff6ae2f50 <NativeCallStack::NativeCallStack(int,+0> mov 
rcx, QWORD PTR [rip+0x842781]        # 0x7ffff73256d8
>>     0x7ffff6ae2f57 <NativeCallStack::NativeCallStack(int,+0> add 
rcx, 0x10
>>   → 0x7ffff6ae2f5b <NativeCallStack::NativeCallStack(int,+0> mov 
QWORD PTR [rdi], rcx
>>     0x7ffff6ae2f5e <NativeCallStack::NativeCallStack(int,+0> mov 
DWORD PTR [rdi+0x28], 0x0
>>     0x7ffff6ae2f65 <NativeCallStack::NativeCallStack(int,+0> add 
rdi, 0x8
>>     0x7ffff6ae2f69 <NativeCallStack::NativeCallStack(int,+0> test
edx, edx
>>     0x7ffff6ae2f6b <NativeCallStack::NativeCallStack(int,+0> je  
0x7ffff6ae2f7b <NativeCallStack::NativeCallStack(int, bool)+43>
>>     0x7ffff6ae2f6d <NativeCallStack::NativeCallStack(int,+0> mov 
eax, esi
>> ─────────[
source:/home/xiangzhai/project/jdk8u-llvm/hotspot/src/share/vm/utilities/nativeCallStack.cpp+33
]────
>>       28  #include "utilities/nativeCallStack.hpp"
>>       29
>>       30  const NativeCallStack NativeCallStack::EMPTY_STACK(0, false);
>>       31
>>       32  NativeCallStack::NativeCallStack(int toSkip, bool fillStack)
:
>>   →   33    _hash_value(0) {
>>       34
>>       35  #if !PLATFORM_NATIVE_STACK_WALKING_SUPPORTED
>>       36    fillStack = false;
>>       37  #endif
>>       38
>>
─────────────────────────────────────────────────────────────────────────────────────────────────[
threads ]────
>> [#0] Id 1, Name: "java", stopped, reason: SIGSEGV
>>
───────────────────────────────────────────────────────────────────────────────────────────────────[
trace ]────
>> [#0] 0x7ffff6ae2f5b → Name:
NativeCallStack::NativeCallStack(this=0x7ffff7315e70
<NativeCallStack::EMPTY_STACK>, toSkip=0x0, fillStack=0x0)
>> [#1] 0x7ffff6a76822 → Name: MemTracker::init_tracking_level()
>> [#2] 0x7ffff62eff49 → Name: MemTracker::tracking_level()
>> [#3] 0x7ffff62eff49 → Name: ResourceObj::operator new(size=0x20,
type=ResourceObj::STACK_OR_EMBEDDED, flags=<optimized out>)
>> [#4] 0x7ffff61369ec → Name: _GLOBAL__sub_I_c1_Greedy.cpp()
>> [#5] 0x7ffff7de7d9a → Name: call_init(l=<optimized out>,
argc=0x2, argv=0x7fffffffdc88, env=0x7fffffffdca0)
>> [#6] 0x7ffff7de7eab → Name: call_init(env=0x7fffffffdca0,
argv=0x7fffffffdc88, argc=0x2, l=<optimized out>)
>> [#7] 0x7ffff7de7eab → Name: _dl_init(main_map=0x602190, argc=0x2,
argv=0x7fffffffdc88, env=0x7fffffffdca0)
>> [#8] 0x7ffff7dece46 → Name: dl_open_worker(a=0x7fffffff97e0)
>> [#9] 0x7ffff7de7c44 → Name: _dl_catch_error(objname=0x7fffffff97d0,
errstring=0x7fffffff97d8, mallocedp=0x7fffffff97cf, operate=0x7ffff7decae0
<dl_open_worker>, args=0x7fffffff97e0)
>>
────────────────────────────────────────────────────────────────────────────────────────────────────────────────
>> 0x00007ffff6ae2f5b in NativeCallStack::NativeCallStack
(this=0x7ffff7315e70 <NativeCallStack::EMPTY_STACK>, toSkip=0x0,
fillStack=0x0) at
/home/xiangzhai/project/jdk8u-llvm/hotspot/src/share/vm/utilities/nativeCallStack.cpp:33
>> 33        _hash_value(0) {
>> gef➤  c
>> Continuing.
>>
>> Program terminated with signal SIGSEGV, Segmentation fault.
>> The program no longer exists.
>> gef➤
>>
>> ----- 8< -------- 8< -------- 8< -------- 8< -------- 8<
-------- 8< ---
>>
>> I started to use and contribute clang static analyzer[2] just for
finding the bugs for open source software from LLVM 3.x,  perhaps it is a bug of
LLVM 8,  because jdk8u is just able to print out '-version' after
compiled with llvm-3.9.1,  I will rebuild the LLVM 8 again,  then rebuild jdk8u
for triple check.
>>
>> 1. Workaround-compile-with-llvm.patch
https://raw.githubusercontent.com/xiangzhai/jdk8u-dev/master/Workaround-compile-with-llvm.patch
>>
>> 2.
https://github.com/llvm-mirror/clang/commit/a530e823ed2793ac149de7a984014e242a787682#diff-ff9160d4628cb9b6186559837c2c8668
>>
>> 3. The build option of LLVM 8 (bootstrap with LLVM 3.9.1):
>>
>> cmake .. -DCMAKE_BUILD_TYPE=Release \
>>      -DCMAKE_C_COMPILER=clang \
>>      -DCMAKE_CXX_COMPILER=clang++ \
>>      -DCMAKE_C_FLAGS="-fPIC" \
>>      -DCMAKE_CXX_FLAGS="-std=c++11 -fPIC" \
>>      -DLLVM_BUILD_LLVM_DYLIB=ON \
>>      -DLLVM_LINK_LLVM_DYLIB=ON \
>>      -DLLVM_INSTALL_UTILS=ON \
>>      -DLLVM_ENABLE_RTTI=ON \
>>      -DLLVM_ENABLE_FFI=ON \
>>      -DLLVM_ENABLE_EH=ON \
>>      -DLLVM_BUILD_TESTS=ON \
>>      -DLLVM_BUILD_DOCS=OFF \
>>      -DLLVM_ENABLE_SPHINX=OFF \
>>      -DLLVM_ENABLE_DOXYGEN=OFF \
>>      -DLLDB_DISABLE_LIBEDIT=1 \
>>      -DSPHINX_WARNINGS_AS_ERRORS=OFF \
>>      -DFFI_INCLUDE_DIR=$(pkg-config --variable=includedir libffi) \
>>      -DFFI_LIBRARY_DIR:PATH="$(pkg-config --variable=libdir
libffi)" \
>>      -DLLVM_BINUTILS_INCDIR=/usr/include \
>>      -DLLVM_LIBDIR_SUFFIX=64 \
>>      -DLIBCXX_ENABLE_ABI_LINKER_SCRIPT=ON \
>>      -DLIBUNWIND_ENABLE_SHARED=ON \
>>      -DLIBCXXABI_USE_LLVM_UNWINDER=ON \
>>      -DLLDB_TEST_C_COMPILER=clang \
>>      -DLLDB_TEST_CXX_COMPILER=clang++ \
>>      -DLLVM_DEFAULT_TARGET_TRIPLE="x86_64-redhat-linux" \
>>      -DCLANG_VENDOR="LLVM China"
>>
>> 4. $ clang -v
>> LLVM China clang version 8.0.0 (git at github.com:llvm-mirror/clang.git
81ef98628ebf5186d746c0986dcbf5073e842043) (git at
github.com:llvm-mirror/llvm.git e1aac9723d55497e74d83d216329f08d9842e494) (based
on LLVM 8.0.0svn)
>> Target: x86_64-redhat-linux
>> Thread model: posix
>> InstalledDir: /usr/bin
>> Found candidate GCC installation:
/usr/bin/../lib/gcc/i686-redhat-linux/6.4.1
>> Found candidate GCC installation:
/usr/bin/../lib/gcc/x86_64-redhat-linux/6.4.1
>> Found candidate GCC installation: /usr/lib/gcc/i686-redhat-linux/6.4.1
>> Found candidate GCC installation:
/usr/lib/gcc/x86_64-redhat-linux/6.4.1
>> Selected GCC installation:
/usr/bin/../lib/gcc/x86_64-redhat-linux/6.4.1
>> Candidate multilib: .;@m64
>> Candidate multilib: 32;@m32
>> Selected multilib: .;@m64
>>
>> --
>> Regards,
>> Leslie Zhai
>>
>>
>> _______________________________________________
>> LLVM Developers mailing list
>> llvm-dev at lists.llvm.org
>> http://lists.llvm.org/cgi-bin/mailman/listinfo/llvm-dev
-- 
Regards,
Leslie Zhai

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