Intentionally undefine a symbol in a linker script file

Asked Dec 25 '14 at 15:02

Active Dec 25 '14 at 15:02

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I am creating a linker script file for a code to run on RAM. To save RAM, I'm trying to reuse code from ROM. To do this, I'm including the ROM list of symbols with their memory address.

But lets say, that some of the code in the ROM is not coded correctly, and I need a copy of it in the RAM to fix it.

How do I make the linker script file (after it includes the list of symbols), to "delete" a symbol mapping, so the linker will use the symbol from the compiled code?

asked Dec 25 '14 at 15:02

Arnon Charas

Which linker are you using? Different linkers use different languages for their linking scripts. – fuz Dec 25 '14 at 15:05
I'm using GCC linker for ARM – Arnon Charas Dec 25 '14 at 16:33
Possible related to http://stackoverflow.com/questions/10032598/gnu-ld-how-to-override-a-symbol-value-an-address-defined-by-the-linker-script – Dwayne Towell Dec 25 '14 at 18:45

Intentionally undefine a symbol in a linker script file

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