[xtensa-cvscommit] linux/include/asm-xtensa ptrace.h,1.2,1.3

[<sfo...@us...>]

Update of /cvsroot/xtensa/linux/include/asm-xtensa
In directory usw-pr-cvs1:/tmp/cvs-serv975/include/asm-xtensa

Modified Files:
	ptrace.h 
Log Message:
First functional checkin of kgdb.  Reading AR registers does not work yet.  (Reading A registers works.)

Currently uses ttyS1 at 9600 8N1.  Serial port and baud rate to become paramterized.

To use, must have CONFIGURE_KGDB.  Must also pass the parameter "gdb" to the kernel to tell it to stop on boot and wait for a connection from gdb.



Index: ptrace.h
===================================================================
RCS file: /cvsroot/xtensa/linux/include/asm-xtensa/ptrace.h,v
retrieving revision 1.2
retrieving revision 1.3
diff -C2 -d -r1.2 -r1.3
*** ptrace.h	29 Aug 2002 21:45:56 -0000	1.2
--- ptrace.h	19 Sep 2002 07:06:08 -0000	1.3
***************
*** 33,36 ****
--- 33,43 ----
  #define SYSCALL_NR	0x1
  
+ /* Note: can return illegal A reg numbers, i.e. > 15 */
+ #define AR_REGNO_TO_A_REGNO(ar_regno, wb) \
+ 	((ar_regno - wb*4) >= 0 ? \
+ 	ar_regno - wb*4 : \
+ 	XCHAL_NUM_AREGS + ar_regno - wb*4)
+ 
+ 
  /*  Offsets from EXCSAVE_1 value:  */
  #define TABLE_SAVEA0	0