Subversion Repositories openrisc

/* SWI numbers for RDP (Demon) monitor.  */

#define SWI_WriteC                 0x0

#define SWI_Write0                 0x2

#define SWI_ReadC                  0x4

#define SWI_CLI                    0x5

#define SWI_GetEnv                 0x10

#define SWI_Exit                   0x11

#define SWI_EnterOS                0x16

#define SWI_GetErrno               0x60

#define SWI_Clock                  0x61

#define SWI_Time                   0x63

#define SWI_Remove                 0x64

#define SWI_Rename                 0x65

#define SWI_Open                   0x66

#define SWI_Close                  0x68

#define SWI_Write                  0x69

#define SWI_Read                   0x6a

#define SWI_Seek                   0x6b

#define SWI_Flen                   0x6c

#define SWI_IsTTY                  0x6e

#define SWI_TmpNam                 0x6f

#define SWI_InstallHandler         0x70

#define SWI_GenerateError          0x71

/* Now the SWI numbers and reason codes for RDI (Angel) monitors.  */

#define AngelSWI_ARM                    0x123456

#ifdef __thumb__

#define AngelSWI                        0xAB

#else

#define AngelSWI                        AngelSWI_ARM

#endif

/* For Thumb-2 code use the BKPT instruction instead of SWI.  */

#ifdef __thumb2__

#define AngelSWIInsn                    "bkpt"

#define AngelSWIAsm                     bkpt

#else

#define AngelSWIInsn                    "swi"

#define AngelSWIAsm                     swi

#endif

/* The reason codes:  */

#define AngelSWI_Reason_Open            0x01

#define AngelSWI_Reason_Close           0x02

#define AngelSWI_Reason_WriteC          0x03

#define AngelSWI_Reason_Write0          0x04

#define AngelSWI_Reason_Write           0x05

#define AngelSWI_Reason_Read            0x06

#define AngelSWI_Reason_ReadC           0x07

#define AngelSWI_Reason_IsTTY           0x09

#define AngelSWI_Reason_Seek            0x0A

#define AngelSWI_Reason_FLen            0x0C

#define AngelSWI_Reason_TmpNam          0x0D

#define AngelSWI_Reason_Remove          0x0E

#define AngelSWI_Reason_Rename          0x0F

#define AngelSWI_Reason_Clock           0x10

#define AngelSWI_Reason_Time            0x11

#define AngelSWI_Reason_System          0x12

#define AngelSWI_Reason_Errno           0x13

#define AngelSWI_Reason_GetCmdLine      0x15

#define AngelSWI_Reason_HeapInfo        0x16

#define AngelSWI_Reason_EnterSVC        0x17

#define AngelSWI_Reason_ReportException 0x18

#define ADP_Stopped_ApplicationExit     ((2 << 16) + 38)

#define ADP_Stopped_RunTimeError        ((2 << 16) + 35)

#if defined(ARM_RDI_MONITOR) && !defined(__ASSEMBLER__)

static inline int

do_AngelSWI (int reason, void * arg)

{

  int value;

  asm volatile ("mov r0, %1; mov r1, %2; " AngelSWIInsn " %a3; mov %0, r0"

       : "=r" (value) /* Outputs */

       : "r" (reason), "r" (arg), "i" (AngelSWI) /* Inputs */

       : "r0", "r1", "r2", "r3", "ip", "lr", "memory", "cc"

                /* Clobbers r0 and r1, and lr if in supervisor mode */);

                /* Accordingly to page 13-77 of ARM DUI 0040D other registers

                   can also be clobbered.  Some memory positions may also be

                   changed by a system call, so they should not be kept in

                   registers. Note: we are assuming the manual is right and

                   Angel is respecting the APCS.  */

  return value;

}

#endif