llvm dev - Jun 2011 - [LLVMdev] Missing symbols in pass stack trace

I'm working on a pass (both LLVM and the pass have been compiled in 
debug+asserts mode) but when the pass crashes in the stack trace printed 
by opt the names of the functions inside my pass don't appear (see 
frames 14-16). How can I have them displayed?
> cafxx at ubuntu:~/Projects/llvm2/Debug+Asserts/bin$ clear && ./opt 
> -load=CGF.so -cgf -debug test.S
> [...]
> While deleting: i32 %
> Use still stuck around after Def is destroyed:  ret i32 <badref>
> opt: Value.cpp:76: virtual llvm::Value::~Value(): Assertion 
> `use_empty() && "Uses remain when a value is
destroyed!"' failed.
> 0  opt             0x0000000000d75265
> 1  opt             0x0000000000d75061
> 2  libpthread.so.0 0x00007f640c60bc60
> 3  libc.so.6       0x00007f640b8f6d05 gsignal + 53
> 4  libc.so.6       0x00007f640b8faab6 abort + 390
> 5  libc.so.6       0x00007f640b8ef7c5 __assert_fail + 245
> 6  opt             0x0000000000d1b287 llvm::Value::~Value() + 393
> 7  opt             0x0000000000c18b67 llvm::User::~User() + 99
> 8  opt             0x0000000000cc9ee2 
> llvm::Instruction::~Instruction() + 114
> 9  opt             0x0000000000ccbf68 llvm::CallInst::~CallInst() + 58
> 10 opt             0x0000000000ccbf9a llvm::CallInst::~CallInst() + 24
> 11 opt             0x00000000008db456 
>
llvm::ilist_node_traits<llvm::Instruction>::deleteNode(llvm::Instruction*)
> + 42
> 12 opt             0x00000000008d9ffd llvm::iplist<llvm::Instruction, 
> llvm::ilist_traits<llvm::Instruction> 
> >::erase(llvm::ilist_iterator<llvm::Instruction>) + 43
> 13 opt             0x0000000000cca004 
> llvm::Instruction::eraseFromParent() + 66
> *14 CGF.so          0x00007f640b6a0042
> 15 CGF.so          0x00007f640b69f7c3
> 16 CGF.so          0x00007f640b6a24fd*
> 17 opt             0x0000000000cf75f2 
> llvm::MPPassManager::runOnModule(llvm::Module&) + 456
> 18 opt             0x0000000000cf7ae7 
> llvm::PassManagerImpl::run(llvm::Module&) + 125
> 19 opt             0x0000000000cf7ef5 
> llvm::PassManager::run(llvm::Module&) + 39
> 20 opt             0x00000000008b33e3 main + 4434
> 21 libc.so.6       0x00007f640b8e1eff __libc_start_main + 255
> 22 opt             0x00000000008a3ec9
> Stack dump:
> 0.    Program arguments: ./opt -load=CGF.so -cgf -debug test.S
> 1.    Running pass 'CGF' on module 'test.S'.

-- 
Carlo Alberto Ferraris <cafxx at strayorange.com 
<mailto:cafxx at strayorange.com>>
website/blog <http://cafxx.strayorange.com> - +39 333 7643 235
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On Jun 24, 2011, at 10:14 AM, Carlo Alberto Ferraris wrote:
> I'm working on a pass (both LLVM and the pass have been compiled in
debug+asserts mode) but when the pass crashes in the stack trace printed by opt
the names of the functions inside my pass don't appear (see frames 14-16).
How can I have them displayed?
>> cafxx at ubuntu:~/Projects/llvm2/Debug+Asserts/bin$ clear &&
./opt -load=CGF.so -cgf -debug test.S
>> [...]
>> While deleting: i32 %
>> Use still stuck around after Def is destroyed:  ret i32 <badref>
>> opt: Value.cpp:76: virtual llvm::Value::~Value(): Assertion
`use_empty() && "Uses remain when a value is destroyed!"'
failed.
>> 0  opt             0x0000000000d75265
>> 1  opt             0x0000000000d75061
>> 2  libpthread.so.0 0x00007f640c60bc60
>> 3  libc.so.6       0x00007f640b8f6d05 gsignal + 53
>> 4  libc.so.6       0x00007f640b8faab6 abort + 390
>> 5  libc.so.6       0x00007f640b8ef7c5 __assert_fail + 245
>> 6  opt             0x0000000000d1b287 llvm::Value::~Value() + 393
>> 7  opt             0x0000000000c18b67 llvm::User::~User() + 99
>> 8  opt             0x0000000000cc9ee2 llvm::Instruction::~Instruction()
+ 114
>> 9  opt             0x0000000000ccbf68 llvm::CallInst::~CallInst() + 58
>> 10 opt             0x0000000000ccbf9a llvm::CallInst::~CallInst() + 24
>> 11 opt             0x00000000008db456
llvm::ilist_node_traits<llvm::Instruction>::deleteNode(llvm::Instruction*)
+ 42
>> 12 opt             0x00000000008d9ffd
llvm::iplist<llvm::Instruction, llvm::ilist_traits<llvm::Instruction>
>::erase(llvm::ilist_iterator<llvm::Instruction>) + 43
>> 13 opt             0x0000000000cca004
llvm::Instruction::eraseFromParent() + 66
>> 14 CGF.so          0x00007f640b6a0042
>> 15 CGF.so          0x00007f640b69f7c3
>> 16 CGF.so          0x00007f640b6a24fd
>> 17 opt             0x0000000000cf75f2
llvm::MPPassManager::runOnModule(llvm::Module&) + 456
>> 18 opt             0x0000000000cf7ae7
llvm::PassManagerImpl::run(llvm::Module&) + 125
>> 19 opt             0x0000000000cf7ef5
llvm::PassManager::run(llvm::Module&) + 39
>> 20 opt             0x00000000008b33e3 main + 4434
>> 21 libc.so.6       0x00007f640b8e1eff __libc_start_main + 255
>> 22 opt             0x00000000008a3ec9
>> Stack dump:
>> 0.    Program arguments: ./opt -load=CGF.so -cgf -debug test.S 
>> 1.    Running pass 'CGF' on module 'test.S'.
> 
Looks like your shared library is not being compiled with symbols.  Did you
verify that your sources are compiled with -g?
> 
> -- 
> Carlo Alberto Ferraris <cafxx at strayorange.com>
> website/blog - +39 333 7643 235
> <cafxx.vcf>_______________________________________________
> LLVM Developers mailing list
> LLVMdev at cs.uiuc.edu         http://llvm.cs.uiuc.edu
> http://lists.cs.uiuc.edu/mailman/listinfo/llvmdev
Thanks,

Justin Holewinski

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> Looks like your shared library is not being compiled with symbols. 
>  Did you verify that your sources are compiled with -g?
I think so, this is the makefile (based on the one in the Hello
pass):
> LEVEL = ../../..
> LIBRARYNAME = CGF
> LOADABLE_MODULE = 1
> USEDLIBS >
> ifneq ($(REQUIRES_RTTI), 1)
> ifneq ($(REQUIRES_EH), 1)
> EXPORTED_SYMBOL_FILE = $(PROJ_SRC_DIR)/CGF.exports
> endif
> endif
>
> include $(LEVEL)/Makefile.common
and this is the invocation:
> cafxx at ubuntu:~/Projects/llvm2/lib/Transforms/cgf$ make
> llvm[0]: Compiling CGFPass.cpp for Debug+Asserts build (PIC)
> llvm[0]: Linking Debug+Asserts Loadable Module CGF.so

-- 
Carlo Alberto Ferraris <cafxx at strayorange.com 
<mailto:cafxx at strayorange.com>>
website/blog <http://cafxx.strayorange.com> - +39 333 7643 235
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