xiaoxiang781216 commented on a change in pull request #5831:
URL: https://github.com/apache/incubator-nuttx/pull/5831#discussion_r833196261
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File path: arch/risc-v/include/irq.h
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@@ -517,6 +517,32 @@ struct xcptcontext
uint8_t nsyscalls;
struct xcpt_syscall_s syscall[CONFIG_SYS_NNEST];
+#endif
+
+#ifdef CONFIG_ARCH_ADDRENV
+#ifdef CONFIG_ARCH_STACK_DYNAMIC
+ /* This array holds the physical address of the level 2 page table used
+ * to map the thread's stack memory. This array will be initially of
+ * zeroed and would be back-up up with pages during page fault exception
+ * handling to support dynamically sized stacks for each thread.
+ */
+
+ uintptr_t *ustack[ARCH_STACK_NSECTS];
Review comment:
should we move this to the patch which really implement the dynamic user
space stack?
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