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Weak linkage doesn't work as expected
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Weak linkage doesn't work as expected
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Richard Gere
over 7 years ago
Note: This was originally posted on 14th May 2010 at http://forums.arm.com
I am using the weak linkage feature of the Real-View Development suite. It appears that a function that is declared as weak is replaced with a NOP regardless of whether the function actually exists in the image. My original understanding of this feature was that the weakly declared function would not be replaced with a NOP unless it was unresolved at the link stage.
Is there a linker option available to tell the linker to use a weakly defined function which has been compiled and should actually exist in the image?
Thanks in advance.
R.
Offline
Richard Gere
over 7 years ago
Note: This was originally posted on 17th May 2010 at
http://forums.arm.com
Thanks for the info.
--keep is certainly an option, but if there are a lot of symbols that need to be kept, then the command line for the linker would be very long.
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Scott Douglass
over 7 years ago
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Scott Douglass
over 7 years ago
Note: This was originally posted on 18th May 2010 at
http://forums.arm.com
If you can put all the weakly referenced functions in sections called "keepme" then you could use --keep="*(keepme)". Or you could just use --no_remove if that didn't keep too many things that you did want removed.
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