From cde9070d9970eef1f7ec2360586c802a16230ad8 Mon Sep 17 00:00:00 2001
From: hc <hc@nodka.com>
Date: Fri, 10 May 2024 07:43:50 +0000
Subject: [PATCH] rtl88x2CE_WiFi_linux driver
---
kernel/kernel/debug/kdb/kdb_bt.c | 127 +++++++++++++++++++++---------------------
1 files changed, 64 insertions(+), 63 deletions(-)
diff --git a/kernel/kernel/debug/kdb/kdb_bt.c b/kernel/kernel/debug/kdb/kdb_bt.c
index 7e2379a..1f9f0e4 100644
--- a/kernel/kernel/debug/kdb/kdb_bt.c
+++ b/kernel/kernel/debug/kdb/kdb_bt.c
@@ -21,22 +21,18 @@
static void kdb_show_stack(struct task_struct *p, void *addr)
{
- int old_lvl = console_loglevel;
- console_loglevel = CONSOLE_LOGLEVEL_MOTORMOUTH;
kdb_trap_printk++;
- kdb_set_current_task(p);
- if (addr) {
- show_stack((struct task_struct *)p, addr);
- } else if (kdb_current_regs) {
-#ifdef CONFIG_X86
- show_stack(p, &kdb_current_regs->sp);
-#else
- show_stack(p, NULL);
-#endif
+
+ if (!addr && kdb_task_has_cpu(p)) {
+ int old_lvl = console_loglevel;
+
+ console_loglevel = CONSOLE_LOGLEVEL_MOTORMOUTH;
+ kdb_dump_stack_on_cpu(kdb_process_cpu(p));
+ console_loglevel = old_lvl;
} else {
- show_stack(p, NULL);
+ show_stack(p, addr, KERN_EMERG);
}
- console_loglevel = old_lvl;
+
kdb_trap_printk--;
}
@@ -78,12 +74,12 @@
*/
static int
-kdb_bt1(struct task_struct *p, unsigned long mask,
- int argcount, int btaprompt)
+kdb_bt1(struct task_struct *p, unsigned long mask, bool btaprompt)
{
- char buffer[2];
- if (kdb_getarea(buffer[0], (unsigned long)p) ||
- kdb_getarea(buffer[0], (unsigned long)(p+1)-1))
+ char ch;
+
+ if (kdb_getarea(ch, (unsigned long)p) ||
+ kdb_getarea(ch, (unsigned long)(p+1)-1))
return KDB_BADADDR;
if (!kdb_task_state(p, mask))
return 0;
@@ -91,22 +87,46 @@
kdb_ps1(p);
kdb_show_stack(p, NULL);
if (btaprompt) {
- kdb_getstr(buffer, sizeof(buffer),
- "Enter <q> to end, <cr> to continue:");
- if (buffer[0] == 'q') {
- kdb_printf("\n");
+ kdb_printf("Enter <q> to end, <cr> or <space> to continue:");
+ do {
+ ch = kdb_getchar();
+ } while (!strchr("\r\n q", ch));
+ kdb_printf("\n");
+
+ /* reset the pager */
+ kdb_nextline = 1;
+
+ if (ch == 'q')
return 1;
- }
}
touch_nmi_watchdog();
return 0;
+}
+
+static void
+kdb_bt_cpu(unsigned long cpu)
+{
+ struct task_struct *kdb_tsk;
+
+ if (cpu >= num_possible_cpus() || !cpu_online(cpu)) {
+ kdb_printf("WARNING: no process for cpu %ld\n", cpu);
+ return;
+ }
+
+ /* If a CPU failed to round up we could be here */
+ kdb_tsk = KDB_TSK(cpu);
+ if (!kdb_tsk) {
+ kdb_printf("WARNING: no task for cpu %ld\n", cpu);
+ return;
+ }
+
+ kdb_bt1(kdb_tsk, ~0UL, false);
}
int
kdb_bt(int argc, const char **argv)
{
int diag;
- int argcount = 5;
int btaprompt = 1;
int nextarg;
unsigned long addr;
@@ -125,18 +145,18 @@
/* Run the active tasks first */
for_each_online_cpu(cpu) {
p = kdb_curr_task(cpu);
- if (kdb_bt1(p, mask, argcount, btaprompt))
+ if (kdb_bt1(p, mask, btaprompt))
return 0;
}
/* Now the inactive tasks */
- kdb_do_each_thread(g, p) {
+ for_each_process_thread(g, p) {
if (KDB_FLAG(CMD_INTERRUPT))
return 0;
if (task_curr(p))
continue;
- if (kdb_bt1(p, mask, argcount, btaprompt))
+ if (kdb_bt1(p, mask, btaprompt))
return 0;
- } kdb_while_each_thread(g, p);
+ }
} else if (strcmp(argv[0], "btp") == 0) {
struct task_struct *p;
unsigned long pid;
@@ -146,10 +166,8 @@
if (diag)
return diag;
p = find_task_by_pid_ns(pid, &init_pid_ns);
- if (p) {
- kdb_set_current_task(p);
- return kdb_bt1(p, ~0UL, argcount, 0);
- }
+ if (p)
+ return kdb_bt1(p, ~0UL, false);
kdb_printf("No process with pid == %ld found\n", pid);
return 0;
} else if (strcmp(argv[0], "btt") == 0) {
@@ -158,12 +176,9 @@
diag = kdbgetularg((char *)argv[1], &addr);
if (diag)
return diag;
- kdb_set_current_task((struct task_struct *)addr);
- return kdb_bt1((struct task_struct *)addr, ~0UL, argcount, 0);
+ return kdb_bt1((struct task_struct *)addr, ~0UL, false);
} else if (strcmp(argv[0], "btc") == 0) {
unsigned long cpu = ~0;
- struct task_struct *save_current_task = kdb_current_task;
- char buf[80];
if (argc > 1)
return KDB_ARGCOUNT;
if (argc == 1) {
@@ -171,35 +186,21 @@
if (diag)
return diag;
}
- /* Recursive use of kdb_parse, do not use argv after
- * this point */
- argv = NULL;
if (cpu != ~0) {
- if (cpu >= num_possible_cpus() || !cpu_online(cpu)) {
- kdb_printf("no process for cpu %ld\n", cpu);
- return 0;
+ kdb_bt_cpu(cpu);
+ } else {
+ /*
+ * Recursive use of kdb_parse, do not use argv after
+ * this point.
+ */
+ argv = NULL;
+ kdb_printf("btc: cpu status: ");
+ kdb_parse("cpu\n");
+ for_each_online_cpu(cpu) {
+ kdb_bt_cpu(cpu);
+ touch_nmi_watchdog();
}
- sprintf(buf, "btt 0x%px\n", KDB_TSK(cpu));
- kdb_parse(buf);
- return 0;
}
- kdb_printf("btc: cpu status: ");
- kdb_parse("cpu\n");
- for_each_online_cpu(cpu) {
- void *kdb_tsk = KDB_TSK(cpu);
-
- /* If a CPU failed to round up we could be here */
- if (!kdb_tsk) {
- kdb_printf("WARNING: no task for cpu %ld\n",
- cpu);
- continue;
- }
-
- sprintf(buf, "btt 0x%px\n", kdb_tsk);
- kdb_parse(buf);
- touch_nmi_watchdog();
- }
- kdb_set_current_task(save_current_task);
return 0;
} else {
if (argc) {
@@ -211,7 +212,7 @@
kdb_show_stack(kdb_current_task, (void *)addr);
return 0;
} else {
- return kdb_bt1(kdb_current_task, ~0UL, argcount, 0);
+ return kdb_bt1(kdb_current_task, ~0UL, false);
}
}
--
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