Please forgive my ignorance. > This function is used to switch the stack and execute a given function.
Why do we have to switch the stack? For instance, what would happen if we do not switch the stack? Regards, Jaeyong On Tue, Jan 8, 2013 at 7:31 PM, Sebastian Sumpf < [email protected]> wrote: > Hello Jaeyong, > > On 01/08/2013 03:26 AM, jaeyong yoo wrote: > > Hello, > > > > Could you explain about the intend behind platform_execute in usb_drv? > > I see it is similar to executing a function but it uses stack allocated > > by dde_kit_simple_malloc, and I don't understand why. > > This function is used to switch the stack and execute a given function. > Since stack switching has to be performed in assembly, the function must > be implemented for each platform (e.g. ARM, x86). In the great picture > this is part of a very simple user-threading implementation. Each > "pseudo" thread needs a stack to need lose its call trace, such a thread > is scheduled using setjmp/longjmp calls (see: > dde_linux/src/drivers/usb/routine.h). > > > Regards, > > Sebastian > > > > -- > Sebastian Sumpf > Genode Labs > > http://www.genode-labs.com · http://genode.org > > Genode Labs GmbH · Amtsgericht Dresden · HRB 28424 · Sitz Dresden > Geschäftsführer: Dr.-Ing. Norman Feske, Christian Helmuth > > > > > > ------------------------------------------------------------------------------ > Master SQL Server Development, Administration, T-SQL, SSAS, SSIS, SSRS > and more. Get SQL Server skills now (including 2012) with LearnDevNow - > 200+ hours of step-by-step video tutorials by Microsoft MVPs and experts. > SALE $99.99 this month only - learn more at: > http://p.sf.net/sfu/learnmore_122512 > _______________________________________________ > Genode-main mailing list > [email protected] > https://lists.sourceforge.net/lists/listinfo/genode-main >
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