| #include <sys/types.h> |
| |
| #ifndef _SEMIHOSTING_H_ |
| #define _SEMIHOSTING_H_ |
| |
| // ---------------------------------------------------------------------------- |
| |
| // Semihosting operations. |
| enum Semihost_Sys_Op { |
| // Regular operations |
| SEMIHOST_SYS_CLOCK = 0x10, |
| SEMIHOST_SYS_CLOSE = 0x02, |
| SEMIHOST_SYS_ELAPSED = 0x30, |
| SEMIHOST_SYS_ERRNO = 0x13, |
| SEMIHOST_SYS_EXIT = 0x18, |
| SEMIHOST_SYS_EXIT_EXTENDED = 0x20, |
| SEMIHOST_SYS_FLEN = 0x0C, |
| SEMIHOST_SYS_GET_CMDLINE = 0x15, |
| SEMIHOST_SYS_HEAPINFO = 0x16, |
| SEMIHOST_SYS_ISERROR = 0x08, |
| SEMIHOST_SYS_ISTTY = 0x09, |
| SEMIHOST_SYS_OPEN = 0x01, |
| SEMIHOST_SYS_READ = 0x06, |
| SEMIHOST_SYS_READC = 0x07, |
| SEMIHOST_SYS_REMOVE = 0x0E, |
| SEMIHOST_SYS_RENAME = 0x0F, |
| SEMIHOST_SYS_SEEK = 0x0A, |
| SEMIHOST_SYS_SYSTEM = 0x12, |
| SEMIHOST_SYS_TICKFREQ = 0x31, |
| SEMIHOST_SYS_TIME = 0x11, |
| SEMIHOST_SYS_TMPNAM = 0x0D, |
| SEMIHOST_SYS_WRITE = 0x05, |
| SEMIHOST_SYS_WRITEC = 0x03, |
| SEMIHOST_SYS_WRITE0 = 0x04, |
| }; |
| |
| enum ADP_Code { |
| ADP_Stopped_BranchThroughZero = 0x20000, |
| ADP_Stopped_UndefinedInstr = 0x20001, |
| ADP_Stopped_SoftwareInterrupt = 0x20002, |
| ADP_Stopped_PrefetchAbort = 0x20003, |
| ADP_Stopped_DataAbort = 0x20004, |
| ADP_Stopped_AddressException = 0x20005, |
| ADP_Stopped_IRQ = 0x20006, |
| ADP_Stopped_FIQ = 0x20007, |
| ADP_Stopped_BreakPoint = 0x20020, |
| ADP_Stopped_WatchPoint = 0x20021, |
| ADP_Stopped_StepComplete = 0x20022, |
| ADP_Stopped_RunTimeErrorUnknown = 0x20023, |
| ADP_Stopped_InternalError = 0x20024, |
| ADP_Stopped_UserInterruption = 0x20025, |
| ADP_Stopped_ApplicationExit = 0x20026, |
| ADP_Stopped_StackOverflow = 0x20027, |
| ADP_Stopped_DivisionByZero = 0x20028, |
| ADP_Stopped_OSSpecific = 0x20029, |
| }; |
| |
| typedef struct { |
| uintptr_t param1; |
| uintptr_t param2; |
| uintptr_t param3; |
| } semihostparam_t; |
| |
| static inline uintptr_t __attribute__((always_inline)) |
| semihost_call_host(uintptr_t op, uintptr_t arg) { |
| register uintptr_t r0 asm("a0") = op; |
| register uintptr_t r1 asm("a1") = arg; |
| |
| asm volatile(".option push \n" |
| ".option norvc \n" |
| " slli zero,zero,0x1f \n" |
| " ebreak \n" |
| " srai zero,zero,0x7 \n" |
| ".option pop \n" |
| |
| : "=r"(r0) /* Outputs */ |
| : "r"(r0), "r"(r1) /* Inputs */ |
| : "memory"); |
| return r0; |
| } |
| |
| #endif |
