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Dear all
When linux load an elf executable, it will resolve all the libraries, but after the executable is finished, will those library it referenced be remove from the memory?
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- 07-16-2009 #1Just Joined!
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- Jul 2009
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ELF relocation
Dear all
When linux load an elf executable, it will resolve all the libraries, but after the executable is finished, will those library it referenced be remove from the memory?
thanks
from Peter
- 07-16-2009 #2Linux Engineer
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- Aug 2007
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- The Netherlands
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Good Question, though I think your at the wrong forums.
I bet there is somebody here who knows it for sure. But if I recall correctly it unloads all librarys after the elfs execution. Though I ain't a 100% sure on that. To be sure I'd advice to check with Kernel Development Groups @ VGER.KERNEL.ORG
Hope that helps
Cheers,
Robin
- 07-17-2009 #3Linux Guru
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AFAIK, the libraries are only unloaded if there are no other applications using them. The data segments will be unloaded as they are local to the process using them, but the text (code) pages will remain in memory until the last application using them terminates. Then, they might remain in cache so that if you start an application that uses those libraries in a short period of time, it won't need to read the code from disc, but can simply page it back into memory.
Sometimes, real fast is almost as good as real time.
Just remember, Semper Gumbi - always be flexible!
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