[lld] r183816 - [ELF] NMAGIC support : Find the BSS section to setup the virtual address of _end.
Shankar Easwaran
shankare at codeaurora.org
Fri Jun 14 08:20:29 PDT 2013
Hi Rafael,
There are already lots of testcases for this.
Thanks
Shankar Easwaran
On 6/13/2013 1:21 PM, Rafael EspĂndola wrote:
> testcase?
>
> On 11 June 2013 20:32, Shankar Easwaran <shankare at codeaurora.org> wrote:
>> Author: shankare
>> Date: Tue Jun 11 19:32:35 2013
>> New Revision: 183816
>>
>> URL: http://llvm.org/viewvc/llvm-project?rev=183816&view=rev
>> Log:
>> [ELF] NMAGIC support : Find the BSS section to setup the virtual address of _end.
>>
>> Modified:
>> lld/trunk/lib/ReaderWriter/ELF/ExecutableWriter.h
>>
>> Modified: lld/trunk/lib/ReaderWriter/ELF/ExecutableWriter.h
>> URL: http://llvm.org/viewvc/llvm-project/lld/trunk/lib/ReaderWriter/ELF/ExecutableWriter.h?rev=183816&r1=183815&r2=183816&view=diff
>> ==============================================================================
>> --- lld/trunk/lib/ReaderWriter/ELF/ExecutableWriter.h (original)
>> +++ lld/trunk/lib/ReaderWriter/ELF/ExecutableWriter.h Tue Jun 11 19:32:35 2013
>> @@ -118,16 +118,13 @@ template <class ELFT> void ExecutableWri
>> endAtomIter == this->_layout->absoluteAtoms().end()) &&
>> "Unable to find the absolute atoms that have been added by lld");
>>
>> - auto phe = this->_programHeader
>> - ->findProgramHeader(llvm::ELF::PT_LOAD, llvm::ELF::PF_W, llvm::ELF::PF_X);
>> + auto bssSection = this->_layout->findOutputSection(".bss");
>>
>> - assert(!(phe == this->_programHeader->rend()) &&
>> - "Can't find a data segment in the program header!");
>> -
>> - (*bssStartAtomIter)->_virtualAddr = (*phe)->p_vaddr + (*phe)->p_filesz;
>> - (*bssEndAtomIter)->_virtualAddr = (*phe)->p_vaddr + (*phe)->p_memsz;
>> - (*underScoreEndAtomIter)->_virtualAddr = (*phe)->p_vaddr + (*phe)->p_memsz;
>> - (*endAtomIter)->_virtualAddr = (*phe)->p_vaddr + (*phe)->p_memsz;
>> + (*bssStartAtomIter)->_virtualAddr = bssSection->virtualAddr();
>> + (*bssEndAtomIter)->_virtualAddr =
>> + bssSection->virtualAddr() + bssSection->memSize();
>> + (*underScoreEndAtomIter)->_virtualAddr = (*bssEndAtomIter)->_virtualAddr;
>> + (*endAtomIter)->_virtualAddr = (*bssEndAtomIter)->_virtualAddr;
>>
>> // Give a chance for the target to finalize its atom values
>> this->_targetHandler.finalizeSymbolValues();
>>
>>
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