xiaoxiang781216 commented on a change in pull request #5731:
URL: https://github.com/apache/incubator-nuttx/pull/5731#discussion_r825468065
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File path: arch/risc-v/src/common/riscv_schedulesigaction.c
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@@ -293,8 +298,26 @@ void up_schedule_sigaction(struct tcb_s *tcb,
sig_deliver_t sigdeliver)
*/
tcb->xcp.sigdeliver = (void *)sigdeliver;
- tcb->xcp.saved_epc = CURRENT_REGS[REG_EPC];
- tcb->xcp.saved_int_ctx = CURRENT_REGS[REG_INT_CTX];
+
+ /* And make sure that the saved context in the TCB is the
+ * same as the interrupt return context.
+ */
+
+ riscv_savestate(tcb->xcp.saved_regs);
+
+ /* Duplicate the register context. These will be
+ * restored by the signal trampoline after the signal has
+ * been delivered.
+ */
+
+ CURRENT_REGS = (uintptr_t *)STACK_ALIGN_DOWN(
+ (uintptr_t)CURRENT_REGS -
+ XCPTCONTEXT_SIZE);
Review comment:
merge to previous line
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