Unix Programming - What does the declaration below mean?

Author

What does the declaration below mean?

Zheng Da

2006-10-21, 1:31 pm

Hello. I'm reading the source code of an OS, and confused by the following
declaration:
void handle_irq(word_t irq) __asm__("intctrl_t_handle_irq");
I think __asm__() should be used to tell gcc that the source code in it is
assemble language.
But what is it used for here?
It seems that it has a very different function here.

With regards
Zheng Da

Ulrich Eckhardt

2006-10-21, 7:32 pm

Zheng Da wrote:
> void handle_irq(word_t irq) __asm__("intctrl_t_handle_irq");
> I think __asm__() should be used to tell gcc that the source
> code in it is assemble language.

Don't think, RTFM! ;)

http://gcc.gnu.org/onlinedocs/gcc-4...html#Asm-Labels

Uli

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