Rev 355 | Go to most recent revision | Details | Last modification | View Log | RSS feed
| Rev | Author | Line No. | Line |
|---|---|---|---|
| 352 | giacomo | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
||
| 3 | * |
||
| 4 | * Coordinators: |
||
| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
||
| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
||
| 7 | * |
||
| 8 | * Authors : |
||
| 9 | * Giacomo Guidi <giacomo@gandalf.sssup.it> |
||
| 10 | * |
||
| 11 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
||
| 12 | * |
||
| 13 | * http://www.sssup.it |
||
| 14 | * http://retis.sssup.it |
||
| 15 | * http://shark.sssup.it |
||
| 16 | */ |
||
| 17 | |||
| 18 | #ifndef __TRACER_H__ |
||
| 19 | #define __TRACER_H__ |
||
| 20 | |||
| 21 | #ifdef __OLD_TRACER__ |
||
| 22 | |||
| 23 | #include <ll/sys/types.h> |
||
| 24 | #include "types.h" |
||
| 25 | #include "trace.h" |
||
| 26 | |||
| 27 | #define TRACER_LOGEVENT oldtrace |
||
| 28 | |||
| 29 | extern int (*trc_register_eventclass) |
||
| 30 | (int class,int num,int(*func)(trc_event_t *, int event, void *ptr)); |
||
| 31 | |||
| 32 | extern void (*trc_logevent)(int event, void *ptr); |
||
| 33 | |||
| 34 | extern int (*trc_resume)(void); |
||
| 35 | extern int (*trc_suspend)(void); |
||
| 36 | |||
| 37 | #define NOT_DEFINED 0xFF |
||
| 38 | |||
| 39 | extern __inline__ void oldtrace(BYTE type, BYTE flag, DWORD par1, DWORD par2) |
||
| 40 | { |
||
| 41 | |||
| 42 | static int oldtype; |
||
| 43 | static int oldpar; |
||
| 44 | extern BYTE conv[256]; // Conversion table: ctable.c |
||
| 45 | BYTE ttype = 0; |
||
| 46 | |||
| 47 | ttype = type & 0x0F; |
||
| 48 | type = type >> 4; |
||
| 49 | type |= (ttype << 4); |
||
| 50 | |||
| 51 | oldtype = conv[type]; |
||
| 52 | |||
| 53 | if (oldtype != NOT_DEFINED) trc_logevent(oldtype,&oldpar); |
||
| 54 | |||
| 55 | } |
||
| 56 | |||
| 57 | |||
| 58 | #else |
||
| 59 | #ifdef __NEW_TRACER__ |
||
| 60 | |||
| 61 | #include <ll/sys/types.h> |
||
| 62 | #include <ll/i386/hw-instr.h> |
||
| 63 | #include "FTrace.h" |
||
| 64 | |||
| 65 | #define TRACER_LOGEVENT fast_logevent |
||
| 66 | |||
| 67 | #define TRACER_SERIALIZE |
||
| 68 | |||
| 69 | /* Save bytes => 1(type) + 4(tsc_high) + 4(tsc_low) + 1(size) |
||
| 70 | if (flag & 1) + 4(par1) |
||
| 71 | if (flag & 3) + 4(par2) |
||
| 72 | * Return 0 -> Success |
||
| 73 | * Return 1 -> Inactive |
||
| 74 | * Return 2 -> Error |
||
| 75 | */ |
||
| 76 | extern __inline__ int fast_logevent(BYTE type, BYTE flag, DWORD par1, DWORD par2) |
||
| 77 | { |
||
| 78 | |||
| 79 | extern void *StartTracerBuffer; |
||
| 80 | extern void *EndTracerBuffer; |
||
| 81 | extern void *CurrentTracerBuffer; |
||
| 82 | extern int TracerActive; |
||
| 83 | extern unsigned long long TracerEventsRecorded; |
||
| 84 | |||
| 85 | SYS_FLAGS f; |
||
| 86 | |||
| 87 | DWORD tsc_low, tsc_high; |
||
| 88 | BYTE size = 10; |
||
| 89 | |||
| 90 | f = ll_fsave(); |
||
| 91 | |||
| 92 | if (!TracerActive) { |
||
| 93 | ll_frestore(f); |
||
| 94 | return 1; |
||
| 95 | } |
||
| 96 | |||
| 97 | #ifdef TRACER_SERIALIZE |
||
| 98 | __asm__("xorl %%eax,%%eax\n\t" |
||
| 99 | "cpuid\n\t" |
||
| 100 | "rdtsc\n\t" |
||
| 101 | :"=a" (tsc_low), "=d" (tsc_high) |
||
| 102 | : |
||
| 103 | :"ebx","ecx"); |
||
| 104 | #else |
||
| 105 | __asm__("rdtsc\n\t" |
||
| 106 | :"=a" (tsc_low), "=d" (tsc_high) |
||
| 107 | ::); |
||
| 108 | #endif |
||
| 109 | |||
| 110 | if (flag & 1) size += 4; |
||
| 111 | if (flag & 3) size += 4; |
||
| 112 | |||
| 113 | if ((CurrentTracerBuffer + size - 1) > EndTracerBuffer) { |
||
| 114 | int i; |
||
| 115 | //Clear remain memory |
||
| 116 | for (i=0;i<(EndTracerBuffer-CurrentTracerBuffer+1);i++) |
||
| 117 | *(BYTE *)(CurrentTracerBuffer + i) = 0; |
||
| 118 | //Cyclical Buffer implementation |
||
| 119 | CurrentTracerBuffer = StartTracerBuffer; |
||
| 120 | } |
||
| 121 | |||
| 122 | *(BYTE *)CurrentTracerBuffer = type; |
||
| 123 | CurrentTracerBuffer++; |
||
| 124 | *(DWORD *)(CurrentTracerBuffer) = tsc_high; |
||
| 125 | CurrentTracerBuffer+=4; |
||
| 126 | *(DWORD *)(CurrentTracerBuffer) = tsc_low; |
||
| 127 | CurrentTracerBuffer+=4; |
||
| 128 | *(BYTE *)(CurrentTracerBuffer) = size; |
||
| 129 | CurrentTracerBuffer++; |
||
| 130 | if (flag & 1) { |
||
| 131 | *(DWORD *)(CurrentTracerBuffer) = par1; |
||
| 132 | CurrentTracerBuffer+=4; |
||
| 133 | } |
||
| 134 | if (flag & 3) { |
||
| 135 | *(DWORD *)(CurrentTracerBuffer) = par2; |
||
| 136 | CurrentTracerBuffer+=4; |
||
| 137 | } |
||
| 138 | |||
| 139 | if (CurrentTracerBuffer > EndTracerBuffer) { |
||
| 140 | ll_frestore(f); |
||
| 141 | return 2; |
||
| 142 | } |
||
| 143 | |||
| 144 | TracerEventsRecorded++; |
||
| 145 | |||
| 146 | ll_frestore(f); |
||
| 147 | return 0; |
||
| 148 | |||
| 149 | } |
||
| 150 | |||
| 151 | #else |
||
| 152 | |||
| 153 | #define TRACER_LOGEVENT(a,b,c,d) |
||
| 154 | |||
| 155 | #endif |
||
| 156 | |||
| 157 | #endif |
||
| 158 | |||
| 159 | #endif |