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Jeffrey Yasskin

2010-May-04 00:07 UTC

[LLVMdev] Is the option --enable-shared discontinued in 2.7?

On Thu, Apr 29, 2010 at 6:31 PM, Jeffrey Yasskin <jyasskin at google.com>
wrote:> On Wed, Apr 28, 2010 at 10:48 AM, Yuri <yuri at tsoft.com> wrote:
>> Jeffrey Yasskin wrote:
>>>
>>> We currently use two different techniques to get whole libraries
>>> included into the .so. On Linux (gnu ld and gold), we pass
>>> --whole-archive, while on OSX we pass -all_load. Which ld does
FreeBSD
>>> use? If you can rearrange tools/llvm-shlib/Makefile until it works
for
>>> you and send us a patch, we can probably get it working for
llvm-2.8.
>>>
>>
>>
>> ld on FreeBSD is from binutils. It takes --whole-archive option.
>
> Would you try the patch at
> http://codereview.appspot.com/download/issue968046_1.diff? It should
> make the BSDs fall into the same path as Linux, and since you use gnu
> ld, that should work for you.
Ping?

Yuri

2010-May-05 00:31 UTC

head link

[LLVMdev] Is the option --enable-shared discontinued in 2.7?

Jeffrey Yasskin wrote:>> Would you try the patch at
>> http://codereview.appspot.com/download/issue968046_1.diff? It should
>> make the BSDs fall into the same path as Linux, and since you use gnu
>> ld, that should work for you.
>>     
>
> Ping?
>   

Sorry for the delay.

Here is what I am getting after applying the patch:
gmake[2]: Leaving directory `/tmp/llvm-build/2.7/llvm-objects/lib/CodeGen'
gmake[1]: Leaving directory `/tmp/llvm-build/2.7/llvm-objects/lib'
gmake[1]: Entering directory 
`/tmp/llvm-build/2.7/llvm-objects/tools/llvm-shlib'
llvm[1]: Linking Release Shared Library LLVM-2.7.so
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0x135):
In function `(anonymous 
namespace)::ARMAsmParser::ParseDirective(llvm::AsmToken)':
: undefined reference to `__assert'
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0x3e3):
In function `(anonymous 
namespace)::ARMAsmParser::ParseDirective(llvm::AsmToken)':
: undefined reference to `__assert'
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0x5d8):
In function `(anonymous 
namespace)::ARMAsmParser::ParseDirective(llvm::AsmToken)':
: undefined reference to `__assert'
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0xd10):
In function `(anonymous 
namespace)::ARMAsmParser::MatchRegisterName(llvm::StringRef const&)':
: undefined reference to `memcmp'
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0xd45):
In function `(anonymous 
namespace)::ARMAsmParser::MatchRegisterName(llvm::StringRef const&)':
: undefined reference to `memcmp'
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0xd6d):
In function `(anonymous 
namespace)::ARMAsmParser::MatchRegisterName(llvm::StringRef const&)':
: undefined reference to `memcmp'
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0xdd5):
In function `(anonymous 
namespace)::ARMAsmParser::MaybeParseRegister((anonymous 
namespace)::ARMOperand&, bool)':
: undefined reference to `__assert'

Linking command line was:
/usr/local/gcc/4.5.0/bin/g++ -I/tmp/llvm-build/2.7/llvm-objects/include 
-I/tmp/llvm-build/2.7/llvm-objects/tools/llvm-shlib 
-I/tmp/llvm-build/2.7/llvm/include 
-I/tmp/llvm-build/2.7/llvm/tools/llvm-shlib  -D_DEBUG -D_GNU_SOURCE 
-D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -O2  -fno-exceptions 
-fno-rtti -fPIC -Woverloaded-virtual     -pedantic -Wno-long-long -Wall 
-W -Wno-unused-parameter -Wwrite-strings  -O2 -Wl,-R 
-Wl,/tmp/llvm-build/2.7/llvm-objects/Release/lib 
-L/tmp/llvm-build/2.7/llvm-objects/Release/lib 
-L/tmp/llvm-build/2.7/llvm-objects/Release/lib  -shared -o 
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVM-2.7.so 
-Wl,--whole-archive -lLLVMARMAsmParser -lLLVMARMAsmPrinter 
-lLLVMARMCodeGen -lLLVMARMInfo -lLLVMAlphaAsmPrinter -lLLVMAlphaCodeGen 
-lLLVMAlphaInfo -lLLVMAnalysis -lLLVMArchive -lLLVMAsmParser 
-lLLVMAsmPrinter -lLLVMBitReader -lLLVMBitWriter 
-lLLVMBlackfinAsmPrinter -lLLVMBlackfinCodeGen -lLLVMBlackfinInfo 
-lLLVMCBackend -lLLVMCBackendInfo -lLLVMCellSPUAsmPrinter 
-lLLVMCellSPUCodeGen -lLLVMCellSPUInfo -lLLVMCodeGen -lLLVMCore 
-lLLVMCppBackend -lLLVMCppBackendInfo -lLLVMExecutionEngine 
-lLLVMInstCombine -lLLVMInstrumentation -lLLVMInterpreter -lLLVMJIT 
-lLLVMLinker -lLLVMMBlazeAsmPrinter -lLLVMMBlazeCodeGen -lLLVMMBlazeInfo 
-lLLVMMC -lLLVMMCParser -lLLVMMSIL -lLLVMMSILInfo -lLLVMMSP430AsmPrinter 
-lLLVMMSP430CodeGen -lLLVMMSP430Info -lLLVMMipsAsmPrinter 
-lLLVMMipsCodeGen -lLLVMMipsInfo -lLLVMPIC16AsmPrinter 
-lLLVMPIC16CodeGen -lLLVMPIC16Info -lLLVMPowerPCAsmPrinter 
-lLLVMPowerPCCodeGen -lLLVMPowerPCInfo -lLLVMScalarOpts 
-lLLVMSelectionDAG -lLLVMSparcAsmPrinter -lLLVMSparcCodeGen 
-lLLVMSparcInfo -lLLVMSupport -lLLVMSystem -lLLVMSystemZAsmPrinter 
-lLLVMSystemZCodeGen -lLLVMSystemZInfo -lLLVMTarget -lLLVMTransformUtils 
-lLLVMX86AsmParser -lLLVMX86AsmPrinter -lLLVMX86CodeGen 
-lLLVMX86Disassembler -lLLVMX86Info -lLLVMXCoreAsmPrinter 
-lLLVMXCoreCodeGen -lLLVMXCoreInfo -lLLVMipa -lLLVMipo -lLLVMpic16passes 
-Wl,--no-whole-archive -Wl,--no-undefined -lpthread -lm

Adding -lc in the end fixes the errors and produces the full size 
libLLVM-2.7.so.

Yuri

Yuri

2010-May-05 17:08 UTC

head link

[LLVMdev] Is the option --enable-shared discontinued in 2.7? (FreeBSD)

Jeffrey Yasskin wrote:>> Would you try the patch at
>> http://codereview.appspot.com/download/issue968046_1.diff? It should
>> make the BSDs fall into the same path as Linux, and since you use gnu
>> ld, that should work for you.
>>     
>
> Ping?
>   

I also noticed that during the build in llvm-gcc-4.2-objects on sparc 
machine there is also a step:
llvm[1]: Linking Release Shared Library LLVM-2.7.so
Linking command is the similar (or same) as in llvm-objects.
It fails just like the same command in llvm-objects. And adding -lc in 
the end saves it.
I guess this is a bug in the Makefile because libLLVM-2.7.so already 
exists and --enable-llvm= is specified to configure.

Not sure why this didn't fail the same way on i386.

Yuri

Jeffrey Yasskin

2010-May-05 20:52 UTC

head link

[LLVMdev] Is the option --enable-shared discontinued in 2.7?

On Tue, May 4, 2010 at 5:31 PM, Yuri <yuri at tsoft.com>
wrote:> Jeffrey Yasskin wrote:
>>>
>>> Would you try the patch at
>>> http://codereview.appspot.com/download/issue968046_1.diff? It
should
>>> make the BSDs fall into the same path as Linux, and since you use
gnu
>>> ld, that should work for you.
>>>
>>
>> Ping?
>>
>
>
> Sorry for the delay.
>
> Here is what I am getting after applying the patch:
> gmake[2]: Leaving directory
`/tmp/llvm-build/2.7/llvm-objects/lib/CodeGen'
> gmake[1]: Leaving directory `/tmp/llvm-build/2.7/llvm-objects/lib'
> gmake[1]: Entering directory
> `/tmp/llvm-build/2.7/llvm-objects/tools/llvm-shlib'
> llvm[1]: Linking Release Shared Library LLVM-2.7.so
>
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0x135):
> In function `(anonymous
> namespace)::ARMAsmParser::ParseDirective(llvm::AsmToken)':
> : undefined reference to `__assert'
>
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0x3e3):
> In function `(anonymous
> namespace)::ARMAsmParser::ParseDirective(llvm::AsmToken)':
> : undefined reference to `__assert'
>
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0x5d8):
> In function `(anonymous
> namespace)::ARMAsmParser::ParseDirective(llvm::AsmToken)':
> : undefined reference to `__assert'
>
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0xd10):
> In function `(anonymous
> namespace)::ARMAsmParser::MatchRegisterName(llvm::StringRef
const&)':
> : undefined reference to `memcmp'
>
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0xd45):
> In function `(anonymous
> namespace)::ARMAsmParser::MatchRegisterName(llvm::StringRef
const&)':
> : undefined reference to `memcmp'
>
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0xd6d):
> In function `(anonymous
> namespace)::ARMAsmParser::MatchRegisterName(llvm::StringRef
const&)':
> : undefined reference to `memcmp'
>
/tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVMARMAsmParser.a(ARMAsmParser.o)(.text+0xdd5):
> In function `(anonymous
> namespace)::ARMAsmParser::MaybeParseRegister((anonymous
> namespace)::ARMOperand&, bool)':
> : undefined reference to `__assert'
>
> Linking command line was:
> /usr/local/gcc/4.5.0/bin/g++ -I/tmp/llvm-build/2.7/llvm-objects/include
> -I/tmp/llvm-build/2.7/llvm-objects/tools/llvm-shlib
> -I/tmp/llvm-build/2.7/llvm/include
> -I/tmp/llvm-build/2.7/llvm/tools/llvm-shlib  -D_DEBUG -D_GNU_SOURCE
> -D__STDC_LIMIT_MACROS -D__STDC_CONSTANT_MACROS -O2  -fno-exceptions
> -fno-rtti -fPIC -Woverloaded-virtual     -pedantic -Wno-long-long -Wall -W
> -Wno-unused-parameter -Wwrite-strings  -O2 -Wl,-R
> -Wl,/tmp/llvm-build/2.7/llvm-objects/Release/lib
> -L/tmp/llvm-build/2.7/llvm-objects/Release/lib
> -L/tmp/llvm-build/2.7/llvm-objects/Release/lib  -shared -o
> /tmp/llvm-build/2.7/llvm-objects/Release/lib/libLLVM-2.7.so
> -Wl,--whole-archive -lLLVMARMAsmParser -lLLVMARMAsmPrinter -lLLVMARMCodeGen
> -lLLVMARMInfo -lLLVMAlphaAsmPrinter -lLLVMAlphaCodeGen -lLLVMAlphaInfo
> -lLLVMAnalysis -lLLVMArchive -lLLVMAsmParser -lLLVMAsmPrinter
> -lLLVMBitReader -lLLVMBitWriter -lLLVMBlackfinAsmPrinter
> -lLLVMBlackfinCodeGen -lLLVMBlackfinInfo -lLLVMCBackend -lLLVMCBackendInfo
> -lLLVMCellSPUAsmPrinter -lLLVMCellSPUCodeGen -lLLVMCellSPUInfo
-lLLVMCodeGen
> -lLLVMCore -lLLVMCppBackend -lLLVMCppBackendInfo -lLLVMExecutionEngine
> -lLLVMInstCombine -lLLVMInstrumentation -lLLVMInterpreter -lLLVMJIT
> -lLLVMLinker -lLLVMMBlazeAsmPrinter -lLLVMMBlazeCodeGen -lLLVMMBlazeInfo
> -lLLVMMC -lLLVMMCParser -lLLVMMSIL -lLLVMMSILInfo -lLLVMMSP430AsmPrinter
> -lLLVMMSP430CodeGen -lLLVMMSP430Info -lLLVMMipsAsmPrinter -lLLVMMipsCodeGen
> -lLLVMMipsInfo -lLLVMPIC16AsmPrinter -lLLVMPIC16CodeGen -lLLVMPIC16Info
> -lLLVMPowerPCAsmPrinter -lLLVMPowerPCCodeGen -lLLVMPowerPCInfo
> -lLLVMScalarOpts -lLLVMSelectionDAG -lLLVMSparcAsmPrinter
-lLLVMSparcCodeGen
> -lLLVMSparcInfo -lLLVMSupport -lLLVMSystem -lLLVMSystemZAsmPrinter
> -lLLVMSystemZCodeGen -lLLVMSystemZInfo -lLLVMTarget -lLLVMTransformUtils
> -lLLVMX86AsmParser -lLLVMX86AsmPrinter -lLLVMX86CodeGen
> -lLLVMX86Disassembler -lLLVMX86Info -lLLVMXCoreAsmPrinter
-lLLVMXCoreCodeGen
> -lLLVMXCoreInfo -lLLVMipa -lLLVMipo -lLLVMpic16passes
-Wl,--no-whole-archive
> -Wl,--no-undefined -lpthread -lm
>
> Adding -lc in the end fixes the errors and produces the full size
> libLLVM-2.7.so.
That's odd. On Linux, g++ adds -lc to the end of the link line itself.
It must be adding -lstdc++ for you too, or you'd have more missing
symbols. If you run that command with "-v", it'll show you the
actual
link line, but given your errors it does seem like -lc is missing. I
don't think it'll hurt anyone else to add that, so I'll try it.

I assume builds without --enable-shared do work for you? If so, I
wonder why g++ would omit -lc for shared links but not executable
links?

Jeffrey

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