From 37f49e37ab4cb5d0bc4c60eb5c6d4dd57db767bb Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:44:59 +0000
Subject: [PATCH] gmac get mac form eeprom
---
kernel/arch/x86/kernel/dumpstack_32.c | 34 ++++++++++++++++++++++++++++++----
1 files changed, 30 insertions(+), 4 deletions(-)
diff --git a/kernel/arch/x86/kernel/dumpstack_32.c b/kernel/arch/x86/kernel/dumpstack_32.c
index cd53f30..722fd71 100644
--- a/kernel/arch/x86/kernel/dumpstack_32.c
+++ b/kernel/arch/x86/kernel/dumpstack_32.c
@@ -29,19 +29,22 @@
if (type == STACK_TYPE_ENTRY)
return "ENTRY_TRAMPOLINE";
+ if (type == STACK_TYPE_EXCEPTION)
+ return "#DF";
+
return NULL;
}
static bool in_hardirq_stack(unsigned long *stack, struct stack_info *info)
{
- unsigned long *begin = (unsigned long *)this_cpu_read(hardirq_stack);
+ unsigned long *begin = (unsigned long *)this_cpu_read(hardirq_stack_ptr);
unsigned long *end = begin + (THREAD_SIZE / sizeof(long));
/*
* This is a software stack, so 'end' can be a valid stack pointer.
* It just means the stack is empty.
*/
- if (stack <= begin || stack > end)
+ if (stack < begin || stack > end)
return false;
info->type = STACK_TYPE_IRQ;
@@ -59,14 +62,14 @@
static bool in_softirq_stack(unsigned long *stack, struct stack_info *info)
{
- unsigned long *begin = (unsigned long *)this_cpu_read(softirq_stack);
+ unsigned long *begin = (unsigned long *)this_cpu_read(softirq_stack_ptr);
unsigned long *end = begin + (THREAD_SIZE / sizeof(long));
/*
* This is a software stack, so 'end' can be a valid stack pointer.
* It just means the stack is empty.
*/
- if (stack <= begin || stack > end)
+ if (stack < begin || stack > end)
return false;
info->type = STACK_TYPE_SOFTIRQ;
@@ -81,6 +84,26 @@
return true;
}
+
+static bool in_doublefault_stack(unsigned long *stack, struct stack_info *info)
+{
+ struct cpu_entry_area *cea = get_cpu_entry_area(raw_smp_processor_id());
+ struct doublefault_stack *ss = &cea->doublefault_stack;
+
+ void *begin = ss->stack;
+ void *end = begin + sizeof(ss->stack);
+
+ if ((void *)stack < begin || (void *)stack >= end)
+ return false;
+
+ info->type = STACK_TYPE_EXCEPTION;
+ info->begin = begin;
+ info->end = end;
+ info->next_sp = (unsigned long *)this_cpu_read(cpu_tss_rw.x86_tss.sp);
+
+ return true;
+}
+
int get_stack_info(unsigned long *stack, struct task_struct *task,
struct stack_info *info, unsigned long *visit_mask)
@@ -105,6 +128,9 @@
if (in_softirq_stack(stack, info))
goto recursion_check;
+ if (in_doublefault_stack(stack, info))
+ goto recursion_check;
+
goto unknown;
recursion_check:
--
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