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

Hello,

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? |

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