These are the symbols required for various changes to the
kernel to allow for dumping to complete properly.
diff -urN -X /home/bharata/dontdiff linux-2.5.40/arch/i386/kernel/i386_ksyms.c linux-2.5.40+lkcd/arch/i386/kernel/i386_ksyms.c
--- linux-2.5.40/arch/i386/kernel/i386_ksyms.c Tue Oct 1 12:36:59 2002
+++ linux-2.5.40+lkcd/arch/i386/kernel/i386_ksyms.c Thu Oct 3 07:18:07 2002
@@ -14,6 +14,7 @@
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/tty.h>
+#include <linux/dump.h>
#include <asm/semaphore.h>
#include <asm/processor.h>
@@ -164,6 +165,24 @@
EXPORT_SYMBOL(rtc_lock);
+#if defined(CONFIG_X86) || defined(CONFIG_ALPHA)
+EXPORT_SYMBOL(page_is_ram);
+#endif
+#ifdef CONFIG_SMP
+extern irq_desc_t irq_desc[];
+extern unsigned long irq_affinity[];
+EXPORT_SYMBOL(irq_affinity);
+EXPORT_SYMBOL(irq_desc);
+extern void dump_send_ipi(void);
+EXPORT_SYMBOL(dump_send_ipi);
+extern int (*dump_ipi_function_ptr)(struct pt_regs *);
+EXPORT_SYMBOL(dump_ipi_function_ptr);
+extern void (*dump_trace_ptr)(struct pt_regs *);
+EXPORT_SYMBOL(dump_trace_ptr);
+extern void show_this_cpu_state(int, struct pt_regs *, struct task_struct *);
+EXPORT_SYMBOL(show_this_cpu_state);
+#endif
+
#undef memcpy
#undef memset
extern void * memset(void *,int,__kernel_size_t);
diff -urN -X /home/bharata/dontdiff linux-2.5.40/kernel/ksyms.c linux-2.5.40+lkcd/kernel/ksyms.c
--- linux-2.5.40/kernel/ksyms.c Tue Oct 1 12:35:49 2002
+++ linux-2.5.40+lkcd/kernel/ksyms.c Thu Oct 3 07:18:07 2002
@@ -34,6 +34,7 @@
#include <linux/ctype.h>
#include <linux/file.h>
#include <linux/iobuf.h>
+#include <linux/dump.h>
#include <linux/console.h>
#include <linux/poll.h>
#include <linux/mmzone.h>
@@ -68,6 +69,7 @@
extern void *sys_call_table;
extern struct timezone sys_tz;
+extern int panic_timeout;
#ifdef CONFIG_MODVERSIONS
const struct module_symbol __export_Using_Versions
@@ -388,6 +390,17 @@
EXPORT_SYMBOL(proc_doulongvec_ms_jiffies_minmax);
EXPORT_SYMBOL(proc_doulongvec_minmax);
+/* dump symbols and other symbols needed by dump functionality */
+EXPORT_SYMBOL(get_blkfops);
+EXPORT_SYMBOL(dump_function_ptr);
+EXPORT_SYMBOL(dump_in_progress);
+EXPORT_SYMBOL(dumping_cpu);
+EXPORT_SYMBOL(panic_timeout);
+EXPORT_SYMBOL(register_dump_notifier);
+EXPORT_SYMBOL(unregister_dump_notifier);
+EXPORT_SYMBOL(dump_notifier_list);
+EXPORT_SYMBOL(dump_device_register_ptr);
+
/* interrupt handling */
EXPORT_SYMBOL(add_timer);
EXPORT_SYMBOL(del_timer);
"Matt D. Robinson" <[email protected]> writes:
> diff -urN -X /home/bharata/dontdiff linux-2.5.40/arch/i386/kernel/i386_ksyms.c linux-2.5.40+lkcd/arch/i386/kernel/i386_ksyms.c
> --- linux-2.5.40/arch/i386/kernel/i386_ksyms.c Tue Oct 1 12:36:59 2002
> +#if defined(CONFIG_X86) || defined(CONFIG_ALPHA)
> +EXPORT_SYMBOL(page_is_ram);
> +#endif
This ifdef in i386_ksyms.c doesn't make much sense...
> +#ifdef CONFIG_SMP
> +extern irq_desc_t irq_desc[];
> +extern unsigned long irq_affinity[];
> +EXPORT_SYMBOL(irq_affinity);
> +EXPORT_SYMBOL(irq_desc);
> +extern void dump_send_ipi(void);
> +EXPORT_SYMBOL(dump_send_ipi);
> +extern int (*dump_ipi_function_ptr)(struct pt_regs *);
> +EXPORT_SYMBOL(dump_ipi_function_ptr);
> +extern void (*dump_trace_ptr)(struct pt_regs *);
> +EXPORT_SYMBOL(dump_trace_ptr);
> +extern void show_this_cpu_state(int, struct pt_regs *, struct task_struct *);
> +EXPORT_SYMBOL(show_this_cpu_state);
Before adding all these ugly declarations I would just declare the file where
whey are exported from as 'x-obj' and put them directly to where the
functions live.
-Andi
On 5 Oct 2002, Andi Kleen wrote:
|>"Matt D. Robinson" <[email protected]> writes:
|>
|>> diff -urN -X /home/bharata/dontdiff linux-2.5.40/arch/i386/kernel/i386_ksyms.c linux-2.5.40+lkcd/arch/i386/kernel/i386_ksyms.c
|>> --- linux-2.5.40/arch/i386/kernel/i386_ksyms.c Tue Oct 1 12:36:59 2002
|>> +#if defined(CONFIG_X86) || defined(CONFIG_ALPHA)
|>> +EXPORT_SYMBOL(page_is_ram);
|>> +#endif
|>
|>This ifdef in i386_ksyms.c doesn't make much sense...
If the rest of the architectures used page_is_ram(), this
wouldn't be a problem, but not all do. And since we use
it/need it, that's the reason for the addition.
|>> +#ifdef CONFIG_SMP
|>> +extern irq_desc_t irq_desc[];
|>> +extern unsigned long irq_affinity[];
|>> +EXPORT_SYMBOL(irq_affinity);
|>> +EXPORT_SYMBOL(irq_desc);
|>> +extern void dump_send_ipi(void);
|>> +EXPORT_SYMBOL(dump_send_ipi);
|>> +extern int (*dump_ipi_function_ptr)(struct pt_regs *);
|>> +EXPORT_SYMBOL(dump_ipi_function_ptr);
|>> +extern void (*dump_trace_ptr)(struct pt_regs *);
|>> +EXPORT_SYMBOL(dump_trace_ptr);
|>> +extern void show_this_cpu_state(int, struct pt_regs *, struct task_struct *);
|>> +EXPORT_SYMBOL(show_this_cpu_state);
|>
|>Before adding all these ugly declarations I would just declare the file where
|>whey are exported from as 'x-obj' and put them directly to where the
|>functions live.
Okee, I'll start looking into doing this. That'll break out this
whole patch (assuming there's something else that can be done for
the page_is_ram() mechanism).
|>-Andi
--Matt
On Sat, Oct 05, 2002 at 03:25:24AM +0200, Matt D. Robinson wrote:
> On 5 Oct 2002, Andi Kleen wrote:
> |>"Matt D. Robinson" <[email protected]> writes:
> |>
> |>> diff -urN -X /home/bharata/dontdiff linux-2.5.40/arch/i386/kernel/i386_ksyms.c linux-2.5.40+lkcd/arch/i386/kernel/i386_ksyms.c
> |>> --- linux-2.5.40/arch/i386/kernel/i386_ksyms.c Tue Oct 1 12:36:59 2002
> |>> +#if defined(CONFIG_X86) || defined(CONFIG_ALPHA)
> |>> +EXPORT_SYMBOL(page_is_ram);
> |>> +#endif
> |>
> |>This ifdef in i386_ksyms.c doesn't make much sense...
>
> If the rest of the architectures used page_is_ram(), this
> wouldn't be a problem, but not all do. And since we use
> it/need it, that's the reason for the addition.
My point was that in i386_ksyms you are always on i386 and never on alpha.
So you can just remove that #ifdef.
-Andi