Initial AVR32 task state
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@3026 42af7a65-404d-4744-a932-0658087f49c3
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@ -81,19 +81,39 @@ void up_initial_state(_TCB *tcb)
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{
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struct xcptcontext *xcp = &tcb->xcp;
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/* Initialize the initial exception register context structure */
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/* Initialize the initial exception register context structure. Zeroing
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* all registers is a good debug helper, but should not be necessary.
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*/
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#ifdef CONFIG_DEBUG
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memset(xcp, 0, sizeof(struct xcptcontext));
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#else
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/* No pending signal delivery */
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/* Save the initial stack pointer */
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/* Save the task entry point (stripping off the thumb bit) */
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xcp->sigdeliver = NULL;
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/* Clear the frame pointer and link register since this is the outermost
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* frame.
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*/
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# warning "Not implemented"
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xcp->regs[REG_R7] = 0;
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xcp->regs[REG_LR] = 0;
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#endif
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/* Set the initial stack pointer to the "base" of the allocated stack */
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xcp->regs[REG_SP] = (uint32_t)tcb->adj_stack_ptr;
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/* Save the task entry point */
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xcp->regs[REG_PC] = (uint32_t)tcb->start;
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/* Enable or disable interrupts, based on user configuration */
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# ifdef CONFIG_SUPPRESS_INTERRUPTS
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# warning "Not implemented"
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xcp->regs[REG_SR] = ;
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# else
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xcp->regs[REG_SR] = 0;
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# endif
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}
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