The save_ptregs() function has not been tested or even built. I will need
help to complete this.
Signed-off-by: David VomLehn <[email protected]>
---
arch/cris/include/arch-v10/arch/ptrace.h | 80 ++++++++++++++++++++++++++++
arch/cris/include/arch-v32/arch/ptrace.h | 84 ++++++++++++++++++++++++++++++
2 files changed, 164 insertions(+), 0 deletions(-)
diff --git a/arch/cris/include/arch-v10/arch/ptrace.h b/arch/cris/include/arch-v10/arch/ptrace.h
index 2f464ea..28be57c 100644
--- a/arch/cris/include/arch-v10/arch/ptrace.h
+++ b/arch/cris/include/arch-v10/arch/ptrace.h
@@ -114,6 +114,86 @@ struct switch_stack {
#define profile_pc(regs) instruction_pointer(regs)
extern void show_regs(struct pt_regs *);
+/* Macros for saving the contents of registers and for the output constraint
+ * for those registers */
+#include "/home/vomlehn/git/kernel.org/ptreg.h"
+#define PTREG_SAVE(r, name) "move.d $" #r ", %[" #r "]\n"
+#define PTREG_SAVE_R(i) PTREG_SAVE_I(r, r, i)
+
+#define PTREG_OUT_R(regs, i) PTREG_OUT_I(regs, r, r, i)
+
+#define arch_has_save_ptregs 1
+
+/**
+ * save_ptregs - save processor registers for backtracing
+ * @regs: Pointer to &struct pt_regs structure in which to save the
+ * registers
+ *
+ * Returns a constant pointer to @regs.
+ *
+ * This function must be called first in a function. There must be no
+ * auto variables defined that are initialized before calling this function.
+ */
+static __always_inline
+const struct pt_regs *save_ptregs(struct pt_regs *regs)
+{
+ __asm__ __volatile__ (
+ PTREG_SAVE(frametype)
+ PTREG_SAVE(orig_r10)
+ PTREGS_SAVE_R(13)
+ PTREGS_SAVE_R(12)
+ PTREGS_SAVE_R(11)
+ PTREGS_SAVE_R(10)
+ PTREGS_SAVE_R(9)
+ PTREGS_SAVE_R(8)
+ PTREGS_SAVE_R(7)
+ PTREGS_SAVE_R(6)
+ PTREGS_SAVE_R(5)
+ PTREGS_SAVE_R(4)
+ PTREGS_SAVE_R(3)
+ PTREGS_SAVE_R(2)
+ PTREGS_SAVE_R(1)
+ PTREGS_SAVE_R(0)
+ PTREG_SAVE(mof)
+ PTREG_SAVE(dccr)
+ PTREG_SAVE(srp)
+ PTREG_SAVE(irp)
+ PTREG_SAVE(csrinstr)
+ PTREG_SAVE(csraddr)
+ PTREG_SAVE(csrdata)
+ "1:\n"
+ "move.d 1b, r0\n"
+ PTREG_SAVE(r0, irp)
+ :
+ PTREG_OUT(regs, frametype, frametype),
+ PTREG_OUT(regs, orig_r10, orig_r10),
+ PTREG_OUT_I(regs, 13),
+ PTREG_OUT_I(regs, 12),
+ PTREG_OUT_I(regs, 11),
+ PTREG_OUT_I(regs, 10),
+ PTREG_OUT_I(regs, 9),
+ PTREG_OUT_I(regs, 8),
+ PTREG_OUT_I(regs, 7),
+ PTREG_OUT_I(regs, 6),
+ PTREG_OUT_I(regs, 5),
+ PTREG_OUT_I(regs, 4),
+ PTREG_OUT_I(regs, 3),
+ PTREG_OUT_I(regs, 2),
+ PTREG_OUT_I(regs, 1),
+ PTREG_OUT_I(regs, 0),
+ PTREG_OUT(regs, mof, mof),
+ PTREG_OUT(regs, dccr, dccr),
+ PTREG_OUT(regs, srp, srp),
+ PTREG_OUT(regs, irp, irp),
+ PTREG_OUT(regs, csrinstr, csrinstr),
+ PTREG_OUT(regs, csraddr, csraddr),
+ PTREG_OUT(regs, csrdata, csrdata)
+ :
+ "r0"
+ );
+
+ return regs;
+}
#endif /* __KERNEL__ */
#endif
diff --git a/arch/cris/include/arch-v32/arch/ptrace.h b/arch/cris/include/arch-v32/arch/ptrace.h
index ffca8d0..90ad6b1 100644
--- a/arch/cris/include/arch-v32/arch/ptrace.h
+++ b/arch/cris/include/arch-v32/arch/ptrace.h
@@ -114,6 +114,90 @@ struct switch_stack {
extern void show_regs(struct pt_regs *);
#define profile_pc(regs) instruction_pointer(regs)
+/* Macros for saving the contents of registers and for the output constraint
+ * for those registers */
+#include "/home/vomlehn/git/kernel.org/ptreg.h"
+#define PTREG_SAVE(r, name) "move.d $" #r ", %[" #r "]\n"
+#define PTREG_SAVE_R(i) PTREG_SAVE_I(r, r, i)
+
+#define PTREG_OUT_R(regs, i) PTREG_OUT_I(regs, r, r, i)
+
+#define arch_has_save_ptregs 1
+
+/**
+ * save_ptregs - save processor registers for backtracing
+ * @regs: Pointer to &struct pt_regs structure in which to save the
+ * registers
+ *
+ * Returns a constant pointer to @regs.
+ *
+ * This function must be called first in a function. There must be no
+ * auto variables defined that are initialized before calling this function.
+ */
+static __always_inline
+const struct pt_regs *save_ptregs(struct pt_regs *regs)
+{
+ __asm__ __volatile__ (
+ PTREG_SAVE(frametype)
+ PTREG_SAVE(orig_r10)
+ PTREGS_SAVE_R(13)
+ PTREGS_SAVE_R(12)
+ PTREGS_SAVE_R(11)
+ PTREGS_SAVE_R(10)
+ PTREGS_SAVE_R(9)
+ PTREGS_SAVE_R(8)
+ PTREGS_SAVE_R(7)
+ PTREGS_SAVE_R(6)
+ PTREGS_SAVE_R(5)
+ PTREGS_SAVE_R(4)
+ PTREGS_SAVE_R(3)
+ PTREGS_SAVE_R(2)
+ PTREGS_SAVE_R(1)
+ PTREGS_SAVE_R(0)
+ PTREG_SAVE(acr)
+ PTREG_SAVE(srs)
+ PTREG_SAVE(mof)
+ PTREG_SAVE(spc)
+ PTREG_SAVE(ccs)
+ PTREG_SAVE(srp)
+ PTREG_SAVE(erp)
+ PTREG_SAVE(exs)
+ PTREG_SAVE(eda)
+ "1:\n"
+ "move.d 1b, r0\n"
+ PTREG_SAVE(r0, irp)
+ :
+ PTREG_OUT(regs, frametype, frametype),
+ PTREG_OUT(regs, orig_r10, orig_r10),
+ PTREG_OUT_I(regs, 0),
+ PTREG_OUT_I(regs, 1),
+ PTREG_OUT_I(regs, 2),
+ PTREG_OUT_I(regs, 3),
+ PTREG_OUT_I(regs, 4),
+ PTREG_OUT_I(regs, 5),
+ PTREG_OUT_I(regs, 6),
+ PTREG_OUT_I(regs, 7),
+ PTREG_OUT_I(regs, 8),
+ PTREG_OUT_I(regs, 9),
+ PTREG_OUT_I(regs, 10),
+ PTREG_OUT_I(regs, 11),
+ PTREG_OUT_I(regs, 12),
+ PTREG_OUT_I(regs, 13),
+ PTREG_OUT(regs, acr, acr),
+ PTREG_OUT(regs, srs, srs),
+ PTREG_OUT(regs, mof, mof),
+ PTREG_OUT(regs, spc, spc),
+ PTREG_OUT(regs, ccs, ccs),
+ PTREG_OUT(regs, srp, srp),
+ PTREG_OUT(regs, erp, erp),
+ PTREG_OUT(regs, exs, exs),
+ PTREG_OUT(regs, eda, eda)
+ :
+ "r0"
+ );
+
+ return regs;
+}
#endif /* __KERNEL__ */
#endif
On Sun, Apr 11, 2010 at 11:06:25PM -0700, David VomLehn wrote:
> The save_ptregs() function has not been tested or even built. I will need
> help to complete this.
>
> Signed-off-by: David VomLehn <[email protected]>
> ---
> arch/cris/include/arch-v10/arch/ptrace.h | 80 ++++++++++++++++++++++++++++
> arch/cris/include/arch-v32/arch/ptrace.h | 84 ++++++++++++++++++++++++++++++
> 2 files changed, 164 insertions(+), 0 deletions(-)
>
> diff --git a/arch/cris/include/arch-v10/arch/ptrace.h b/arch/cris/include/arch-v10/arch/ptrace.h
> index 2f464ea..28be57c 100644
> --- a/arch/cris/include/arch-v10/arch/ptrace.h
> +++ b/arch/cris/include/arch-v10/arch/ptrace.h
> @@ -114,6 +114,86 @@ struct switch_stack {
> #define profile_pc(regs) instruction_pointer(regs)
> extern void show_regs(struct pt_regs *);
>
> +/* Macros for saving the contents of registers and for the output constraint
> + * for those registers */
> +#include "/home/vomlehn/git/kernel.org/ptreg.h"
The above include needs fixing.
I did not look at the rest of your patches - they may suffer the same.
PS: Your To: is seriously broken, I have to hand-edit Cc:s to send the mail
Sam
Sam Ravnborg wrote:
> On Sun, Apr 11, 2010 at 11:06:25PM -0700, David VomLehn wrote:
>
>> The save_ptregs() function has not been tested or even built. I will need
>> help to complete this.
>>
>> Signed-off-by: David VomLehn <[email protected]>
>> ---
>> arch/cris/include/arch-v10/arch/ptrace.h | 80 ++++++++++++++++++++++++++++
>> arch/cris/include/arch-v32/arch/ptrace.h | 84 ++++++++++++++++++++++++++++++
>> 2 files changed, 164 insertions(+), 0 deletions(-)
>>
>> diff --git a/arch/cris/include/arch-v10/arch/ptrace.h b/arch/cris/include/arch-v10/arch/ptrace.h
>> index 2f464ea..28be57c 100644
>> --- a/arch/cris/include/arch-v10/arch/ptrace.h
>> +++ b/arch/cris/include/arch-v10/arch/ptrace.h
>> @@ -114,6 +114,86 @@ struct switch_stack {
>> #define profile_pc(regs) instruction_pointer(regs)
>> extern void show_regs(struct pt_regs *);
>>
>> +/* Macros for saving the contents of registers and for the output constraint
>> + * for those registers */
>> +#include "/home/vomlehn/git/kernel.org/ptreg.h"
>>
>
> The above include needs fixing.
> I did not look at the rest of your patches - they may suffer the same.
>
> PS: Your To: is seriously broken, I have to hand-edit Cc:s to send the mail
>
Yes;, and I apologize for this. I've got to track down the reason for
this. before send more
patches.
> Sam
>