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| Rev | Author | Line No. | Line |
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| 352 | giacomo | 1 | /* |
| 2 | * Project: S.Ha.R.K. |
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| 3 | * |
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| 4 | * Coordinators: |
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| 5 | * Giorgio Buttazzo <giorgio@sssup.it> |
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| 6 | * Paolo Gai <pj@gandalf.sssup.it> |
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| 7 | * |
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| 8 | * Authors : |
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| 9 | * Giacomo Guidi <giacomo@gandalf.sssup.it> |
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| 10 | * |
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| 11 | * ReTiS Lab (Scuola Superiore S.Anna - Pisa - Italy) |
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| 12 | * |
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| 13 | * http://www.sssup.it |
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| 14 | * http://retis.sssup.it |
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| 15 | * http://shark.sssup.it |
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| 16 | */ |
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| 17 | |||
| 18 | #ifndef __TRACER_H__ |
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| 19 | #define __TRACER_H__ |
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| 20 | |||
| 21 | #ifdef __OLD_TRACER__ |
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| 22 | |||
| 23 | #include <ll/sys/types.h> |
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| 24 | #include "types.h" |
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| 25 | #include "trace.h" |
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| 355 | giacomo | 26 | #include "FTrace.h" |
| 352 | giacomo | 27 | |
| 28 | #define TRACER_LOGEVENT oldtrace |
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| 29 | |||
| 30 | extern int (*trc_register_eventclass) |
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| 31 | (int class,int num,int(*func)(trc_event_t *, int event, void *ptr)); |
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| 32 | |||
| 33 | extern void (*trc_logevent)(int event, void *ptr); |
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| 34 | |||
| 35 | extern int (*trc_resume)(void); |
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| 36 | extern int (*trc_suspend)(void); |
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| 37 | |||
| 38 | #define NOT_DEFINED 0xFF |
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| 39 | |||
| 40 | extern __inline__ void oldtrace(BYTE type, BYTE flag, DWORD par1, DWORD par2) |
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| 41 | { |
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| 42 | |||
| 43 | static int oldtype; |
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| 44 | static int oldpar; |
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| 45 | extern BYTE conv[256]; // Conversion table: ctable.c |
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| 46 | BYTE ttype = 0; |
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| 47 | |||
| 48 | ttype = type & 0x0F; |
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| 49 | type = type >> 4; |
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| 50 | type |= (ttype << 4); |
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| 51 | |||
| 52 | oldtype = conv[type]; |
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| 53 | |||
| 54 | if (oldtype != NOT_DEFINED) trc_logevent(oldtype,&oldpar); |
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| 55 | |||
| 56 | } |
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| 57 | |||
| 58 | |||
| 59 | #else |
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| 60 | #ifdef __NEW_TRACER__ |
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| 61 | |||
| 62 | #include <ll/sys/types.h> |
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| 63 | #include <ll/i386/hw-instr.h> |
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| 64 | #include "FTrace.h" |
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| 65 | |||
| 66 | #define TRACER_LOGEVENT fast_logevent |
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| 67 | |||
| 68 | #define TRACER_SERIALIZE |
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| 69 | |||
| 70 | /* Save bytes => 1(type) + 4(tsc_high) + 4(tsc_low) + 1(size) |
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| 71 | if (flag & 1) + 4(par1) |
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| 72 | if (flag & 3) + 4(par2) |
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| 73 | * Return 0 -> Success |
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| 74 | * Return 1 -> Inactive |
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| 75 | * Return 2 -> Error |
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| 76 | */ |
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| 77 | extern __inline__ int fast_logevent(BYTE type, BYTE flag, DWORD par1, DWORD par2) |
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| 78 | { |
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| 79 | |||
| 80 | extern void *StartTracerBuffer; |
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| 81 | extern void *EndTracerBuffer; |
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| 82 | extern void *CurrentTracerBuffer; |
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| 83 | extern int TracerActive; |
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| 84 | extern unsigned long long TracerEventsRecorded; |
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| 85 | |||
| 86 | SYS_FLAGS f; |
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| 87 | |||
| 88 | DWORD tsc_low, tsc_high; |
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| 89 | BYTE size = 10; |
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| 90 | |||
| 91 | f = ll_fsave(); |
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| 92 | |||
| 93 | if (!TracerActive) { |
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| 94 | ll_frestore(f); |
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| 95 | return 1; |
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| 96 | } |
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| 97 | |||
| 98 | #ifdef TRACER_SERIALIZE |
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| 99 | __asm__("xorl %%eax,%%eax\n\t" |
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| 100 | "cpuid\n\t" |
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| 101 | "rdtsc\n\t" |
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| 102 | :"=a" (tsc_low), "=d" (tsc_high) |
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| 103 | : |
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| 104 | :"ebx","ecx"); |
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| 105 | #else |
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| 106 | __asm__("rdtsc\n\t" |
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| 107 | :"=a" (tsc_low), "=d" (tsc_high) |
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| 108 | ::); |
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| 109 | #endif |
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| 110 | |||
| 111 | if (flag & 1) size += 4; |
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| 112 | if (flag & 3) size += 4; |
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| 113 | |||
| 114 | if ((CurrentTracerBuffer + size - 1) > EndTracerBuffer) { |
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| 115 | int i; |
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| 116 | //Clear remain memory |
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| 117 | for (i=0;i<(EndTracerBuffer-CurrentTracerBuffer+1);i++) |
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| 118 | *(BYTE *)(CurrentTracerBuffer + i) = 0; |
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| 119 | //Cyclical Buffer implementation |
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| 120 | CurrentTracerBuffer = StartTracerBuffer; |
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| 121 | } |
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| 122 | |||
| 123 | *(BYTE *)CurrentTracerBuffer = type; |
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| 124 | CurrentTracerBuffer++; |
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| 125 | *(DWORD *)(CurrentTracerBuffer) = tsc_high; |
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| 126 | CurrentTracerBuffer+=4; |
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| 127 | *(DWORD *)(CurrentTracerBuffer) = tsc_low; |
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| 128 | CurrentTracerBuffer+=4; |
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| 129 | *(BYTE *)(CurrentTracerBuffer) = size; |
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| 130 | CurrentTracerBuffer++; |
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| 131 | if (flag & 1) { |
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| 132 | *(DWORD *)(CurrentTracerBuffer) = par1; |
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| 133 | CurrentTracerBuffer+=4; |
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| 134 | } |
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| 135 | if (flag & 3) { |
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| 136 | *(DWORD *)(CurrentTracerBuffer) = par2; |
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| 137 | CurrentTracerBuffer+=4; |
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| 138 | } |
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| 139 | |||
| 140 | if (CurrentTracerBuffer > EndTracerBuffer) { |
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| 141 | ll_frestore(f); |
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| 142 | return 2; |
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| 143 | } |
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| 144 | |||
| 145 | TracerEventsRecorded++; |
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| 146 | |||
| 147 | ll_frestore(f); |
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| 148 | return 0; |
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| 149 | |||
| 150 | } |
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| 151 | |||
| 152 | #else |
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| 153 | |||
| 154 | #define TRACER_LOGEVENT(a,b,c,d) |
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| 155 | |||
| 156 | #endif |
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| 157 | |||
| 158 | #endif |
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| 159 | |||
| 160 | #endif |