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problem while compiling COOCOX RTOS with MBED

Note: This was originally posted on 30th November 2010 at http://forums.arm.com

[indent]hello everybody!

I'm having problem with Coos RTOS with Mbed. Is there anybody who can tell me if i can redefine an exception handler that is previously defined in startup_LPC17xx.c?

I'm talking about PendSV_Handler(). How can i know how it is defined in Mbed? As we don't have the startup_LPC17xx.c file.

In fact i saw that it is originally defined as default handler i.e. an infinite loop. So maybe with Mbed, we couldn't redefine this handler (because it is already compiled: startup_LPC17xx.o already included) and that's why i'm blocked in my application while it makes a switch context. This is my assumption...

I guess we cannot redefine a function once it has already been compiled in an other file? Or the linker should give at least a warning message...But it doesn't...

Many thanks

Bye

[/indent]

Jim ARM over 12 years ago

Note: This was originally posted on 11th December 2010 at http://forums.arm.com

Maybe you could get the answer from CooCox Forum!
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Jim ARM over 12 years ago

Note: This was originally posted on 11th December 2010 at http://forums.arm.com

Maybe you could get the answer from CooCox Forum!
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Simon Craske over 12 years ago

Note: This was originally posted on 30th November 2010 at http://forums.arm.com

I believe the default handlers are only weakly defined, so simply redefining PendSV_Handler() should be sufficient for the linker to favour your definition.
More information on this can be found on the MBed forum: http://mbed.org/forum/

hth
s.
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