How can I figure out the register numbers for a remote target stub?

[Sebastian Huber]

Sorry for the bad format in the previous mail. Here is the next attempt:

I would like to extend the RTEMS GDB remote target stub to support 
PowerPC (e500, e6500).  In the ARM support we have some magic register 
numbers:

https://git.rtems.org/rtems/tree/cpukit/libdebugger/rtems-debugger-arm.c#n132 


/*
  * Debugger registers layout.
  */
#define REG_R0 0
#define REG_R1 1
#define REG_R2 2
#define REG_R3 3
#define REG_R4 4
#define REG_R5 5
#define REG_R6 6
#define REG_R7 7
#define REG_R8 8
#define REG_R9 9
#define REG_R10 10
#define REG_R11 11
#define REG_R12 12
#define REG_SP 13
#define REG_LR 14
#define REG_PC 15
#define REG_CPSR 25

How can I find the corresponding numbers for the PowerPC? There is a 
comment in (gdb/ppc-tdep.h):

/* Register number constants. These are GDB internal register numbers; 
they are
  * not used for the simulator or remote targets. Extra SPRs (those 
other than
  * MQ, CTR, LR, XER, SPEFSCR) are given numbers above PPC_NUM_REGS. So are
  * segment registers and other target-defined registers. */
enum {
   PPC_R0_REGNUM = 0,
   PPC_F0_REGNUM = 32,

I cannot find the numbers which are used for remote targets. Are they 
defined by the XML files in gdb/features/rs6000?

-- 
Sebastian Huber, embedded brains GmbH

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