#include "arm.h" #include <_ansi.h> /* 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. */ #if defined (SEMIHOST_V2) \ && defined (SEMIHOST_V2_MIXED_MODE) \ && !defined (THUMB_VXM) #define AngelSWI_ARM 0xE10F0070 /* HLT #0xF000 A32. */ #ifdef __thumb__ #define AngelSWI 0xBABC /* HLT #0x3c T32. */ #else /* __thumb__. */ #define AngelSWI AngelSWI_ARM #endif /* __thumb__. */ #else /* SEMIHOST_V2. */ #define AngelSWI_ARM 0x123456 /* SVC A32. */ #ifdef __thumb__ #define AngelSWI 0xAB /* SVC T32. */ #else /* __thumb__. */ #define AngelSWI AngelSWI_ARM #endif /* __thumb__. */ #endif /* SEMIHOST_V2. */ /* For thumb only architectures use the BKPT instruction instead of SWI. */ #ifdef THUMB_VXM #define AngelSWIInsn "bkpt" #define AngelSWIAsm(IMM) bkpt IMM #elif defined (SEMIHOST_V2) && defined (SEMIHOST_V2_MIXED_MODE) /* This is actually encoding the HLT instruction, however we don't have support for this in older assemblers. So we have to encode the instruction manually. */ #define AngelSWIInsn ".inst" #define AngelSWIAsm(IMM) .inst IMM #else #define AngelSWIInsn "swi" #define AngelSWIAsm(IMM) swi IMM #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_IsError 0x08 #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 AngelSWI_Reason_ReportExceptionExtended 0x20 #define AngelSWI_Reason_Elapsed 0x30 #define AngelSWI_Reason_TickFreq 0x31 #define ADP_Stopped_ApplicationExit ((2 << 16) + 38) #define ADP_Stopped_RunTimeError ((2 << 16) + 35) /* Semihosting feature magic numbers. */ #define NUM_SHFB_MAGIC 4 #define SHFB_MAGIC_0 0x53 #define SHFB_MAGIC_1 0x48 #define SHFB_MAGIC_2 0x46 #define SHFB_MAGIC_3 0x42 /* Semihosting extensions. */ #define SH_EXT_EXIT_EXTENDED_BITNUM 0x0 #define SH_EXT_STDOUT_STDERR_BITNUM 0x1 #if !defined (__ASSEMBLER__) extern int _get_semihosting_exts (char*, int, int); extern int _has_ext_exit_extended (void); extern int _has_ext_stdout_stderr (void); #endif #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