X-Git-Url: http://git.megacz.com/?a=blobdiff_plain;f=rts%2FHpc.c;h=0eeb8dd2add3e58570820d564f72774cdbeec13b;hb=317a95824cde3c72c6234f5a28c4c53d452f964e;hp=bfbbf67c8f730a75d280e340b6079a2735bbcadb;hpb=71e810db51fb7f874f11f561303bd0bcb5e6d3d0;p=ghc-hetmet.git diff --git a/rts/Hpc.c b/rts/Hpc.c index bfbbf67..0eeb8dd 100644 --- a/rts/Hpc.c +++ b/rts/Hpc.c @@ -2,14 +2,13 @@ * (c)2006 Galois Connections, Inc. */ -// #include "HsFFI.h" - #include #include #include #include #include #include "HsFFI.h" + #include "Rts.h" #include "Hpc.h" @@ -19,12 +18,26 @@ */ #define DEBUG_HPC 0 +#define WOP_SIZE 1024 static int hpc_inited = 0; // Have you started this component? +static int totalTickCount = 0; // How many ticks have we got to work with static FILE *tixFile; // file being read/written static int tix_ch; // current char static StgWord64 magicTixNumber; // Magic/Hash number to mark .tix files +static FILE *rixFile = NULL; // The tracer file/pipe (to debugger) +static FILE *rixCmdFile = NULL; // The tracer file/pipe (from debugger) +static StgWord64 rixCounter = 0; // The global event counter + + +typedef enum { + RixThreadFinishedOp = -1, + RixRaiseOp = -2, + RixFinishedOp = -3 +} HpcRixOp; + + typedef struct _Info { char *modName; // name of module int tickCount; // number of ticks @@ -45,13 +58,12 @@ Info *nextModule = 0; StgWord64 *tixBoxes = 0; // local copy of tixBoxes array, from file. int totalTixes = 0; // total number of tix boxes. - - static char *tixFilename; + static void failure(char *msg) { - printf("Hpc failure: %s\n",msg); - printf("(perhaps remove .tix file?)\n"); + fprintf(stderr,"Hpc failure: %s\n",msg); + fprintf(stderr,"(perhaps remove .tix file?)\n"); exit(-1); } @@ -68,7 +80,7 @@ static int init_open(char *filename) static void expect(char c) { if (tix_ch != c) { - printf("Hpc: parse failed (%c,%c)\n",tix_ch,c); + fprintf(stderr,"Hpc: parse failed (%c,%c)\n",tix_ch,c); exit(-1); } tix_ch = getc(tixFile); @@ -186,13 +198,14 @@ static void hpc_init(void) { * of the tix file, or all zeros. */ -void +int hs_hpc_module(char *modName,int modCount,StgWord64 *tixArr) { Info *tmpModule, *lastModule; int i; + int offset = 0; #if DEBUG_HPC - printf("hs_hpc_module(%s,%d)\n",modName,modCount); + fprintf(stderr,"hs_hpc_module(%s,%d)\n",modName,modCount); #endif hpc_init(); @@ -211,7 +224,7 @@ hs_hpc_module(char *modName,int modCount,StgWord64 *tixArr) { for(i=0;i < modCount;i++) { tixArr[i] = tixBoxes[i + tmpModule->tickOffset]; } - return; + return tmpModule->tickOffset; } lastModule = tmpModule; } @@ -237,7 +250,189 @@ hs_hpc_module(char *modName,int modCount,StgWord64 *tixArr) { } #if DEBUG_HPC - printf("end: hs_hpc_module\n"); + fprintf(stderr,"end: hs_hpc_module\n"); +#endif + return offset; +} + +static void breakPointCommand(HpcRixOp rixOp, StgThreadID rixTid); + +// Breakpointing +static StgThreadID previousTid = 0; +static StgWord64 rixBPCounter = 0; // The global event breakpoint counter +static int *tixBoxBP; +static int specialOpBP = 0; +static HpcRixOp rixOpBack[WOP_SIZE]; // The actual op +static HpcRixOp rixTidBack[WOP_SIZE]; // Tid's before the op + +void +hs_hpc_raise_event(StgTSO *current_tso) { + hs_hpc_tick(RixRaiseOp,current_tso); +} + +void +hs_hpc_thread_finished_event(StgTSO *current_tso) { + hs_hpc_tick(RixThreadFinishedOp,current_tso); +} + +/* Called on every tick, dynamically, sending to our + * external record of program execution. + */ + +void +hs_hpc_tick(int rixOp, StgTSO *current_tso) { +#if DEBUG_HPC + fprintf(stderr,"hs_hpc_tick(%x)\n",rixOp); +#endif + if (rixFile == NULL) { + return; + } + assert(rixCmdFile != NULL); + StgThreadID tid = (current_tso == 0) ? 0 : current_tso->id; + + // now check to see if we have met a breakpoint condition + if (rixCounter == rixBPCounter || (specialOpBP && tid != previousTid)) { + breakPointCommand(rixOp,tid); + } else { + if (rixOp >= 0) { + // Tix op + if (tixBoxBP[rixOp] == 1) { // reached a bp tixbox + breakPointCommand(rixOp,tid); + } + } else { + // Special op + if (specialOpBP) { + breakPointCommand(rixOp,tid); + } + } + } + // update the history information. + previousTid = tid; + rixOpBack[rixCounter % WOP_SIZE] = rixOp; + rixTidBack[rixCounter % WOP_SIZE] = tid; + rixCounter++; + +#if DEBUG_HPC + fprintf(stderr,"end: hs_hpc_tick\n"); +#endif +} + +static void +printEvent(FILE *out,StgWord64 rixCounter,StgThreadID rixTid,HpcRixOp rixOp) { +#if DEBUG_HPC + if (out != stderr) { + printEvent(stderr,rixCounter,rixTid,rixOp); + } +#endif + fprintf(out,"%" PRIuWORD64 " %u ",rixCounter,(unsigned int)rixTid); + switch(rixOp) { + case RixThreadFinishedOp: + fprintf(out,"ThreadFinished\n"); + case RixRaiseOp: + fprintf(out,"Raise\n"); + case RixFinishedOp: + fprintf(out,"Finished\n"); + default: + fprintf(out,"%u\n",rixOp); + } +} + +static void +breakPointCommand(HpcRixOp rixOp, StgThreadID rixTid) { + StgWord64 tmp64 = 0; + unsigned int tmp = 0; + printEvent(rixFile,rixCounter,rixTid,rixOp); + fflush(rixFile); + /* From here, you can ask some basic questions. + * + * c set the (one) counter breakpoint + * s set the (many) tickbox breakpoint + * u unset the (many) tickbox breakpoint + * x set special bp + * o unset special bp + * h history + + * Note that you aways end up here on the first tick + * because the specialOpBP is equal 0. + */ + int c = getc(rixCmdFile); + while(c != 10 && c != -1) { + switch(c) { + case 'c': // c1234 -- set counter breakpoint at 1234 + c = getc(rixCmdFile); + tmp64 = 0; + while(isdigit(c)) { + tmp64 = tmp64 * 10 + (c - '0'); + c = getc(rixCmdFile); + } +#if DEBUG_HPC + fprintf(stderr,"setting countBP = %" PRIuWORD64 "\n",tmp64); +#endif + rixBPCounter = tmp64; + break; + case 's': // s2323 -- set tick box breakpoint at 2323 + c = getc(rixCmdFile); + tmp = 0; + while(isdigit(c)) { + tmp = tmp * 10 + (c - '0'); + c = getc(rixCmdFile); + } +#if DEBUG_HPC + fprintf(stderr,"seting bp for tix %d\n",tmp); +#endif + tixBoxBP[tmp] = 1; + break; + case 'u': // u2323 -- unset tick box breakpoint at 2323 + c = getc(rixCmdFile); + tmp = 0; + while(isdigit(c)) { + tmp = tmp * 10 + (c - '0'); + c = getc(rixCmdFile); + } +#if DEBUG_HPC + fprintf(stderr,"unseting bp for tix %d\n",tmp); +#endif + tixBoxBP[tmp] = 0; + break; + case 'x': // x -- set special bp flag +#if DEBUG_HPC + fprintf(stderr,"seting specialOpBP = 1\n"); +#endif + specialOpBP = 1; + c = getc(rixCmdFile); + break; + case 'o': // o -- clear special bp flag +#if DEBUG_HPC + fprintf(stderr,"seting specialOpBP = 0\n"); +#endif + specialOpBP = 0; + c = getc(rixCmdFile); + break; + case 'h': // h -- history of the last few (WOP_SIZE) steps + if (rixCounter > WOP_SIZE) { + tmp64 = rixCounter - WOP_SIZE; + } else { + tmp64 = 0; + } + for(;tmp64 < rixCounter;tmp64++) { + printEvent(rixFile,tmp64,rixTidBack[tmp64 % WOP_SIZE],rixOpBack[tmp64 % WOP_SIZE]); + } + fflush(rixFile); + c = getc(rixCmdFile); + break; + default: +#if DEBUG_HPC + fprintf(stderr,"strange command from HPCRIX (%d)\n",c); +#endif + c = getc(rixCmdFile); + } + while (c != 10) { // the end of the line + c = getc(rixCmdFile); // to the end of the line + } + c = getc(rixCmdFile); // the first char on the next command + } +#if DEBUG_HPC + fprintf(stderr,"re entering program\n"); #endif } @@ -248,8 +443,10 @@ hs_hpc_module(char *modName,int modCount,StgWord64 *tixArr) { void startupHpc(void) { Info *tmpModule; + char *hpcRix; + char *hpcRixCmd; #if DEBUG_HPC - printf("startupHpc\n"); + fprintf(stderr,"startupHpc\n"); #endif if (hpc_inited == 0) { @@ -260,6 +457,7 @@ startupHpc(void) { if (tixBoxes) { for(;tmpModule != 0;tmpModule = tmpModule->next) { + totalTickCount += tmpModule->tickCount; if (!tmpModule->tixArr) { fprintf(stderr,"error: module %s did not register any hpc tick data\n", tmpModule->modName); @@ -268,8 +466,56 @@ startupHpc(void) { } } } + + // HPCRIX contains the name of the file to send our dynamic runtime output to (a named pipe). + + hpcRix = getenv("HPCRIX"); + if (hpcRix) { + int comma; + Info *tmpModule; + + assert(hpc_inited); + + rixFile = fopen(hpcRix,"w"); + comma = 0; + + fprintf(rixFile,"Starting %s\n",prog_name); + fprintf(rixFile,"["); + tmpModule = modules; + for(;tmpModule != 0;tmpModule = tmpModule->next) { + if (comma) { + fprintf(rixFile,","); + } else { + comma = 1; + } + fprintf(rixFile,"(\"%s\",%u)", + tmpModule->modName, + tmpModule->tickCount); +#if DEBUG_HPC + fprintf(stderr,"(tracer)%s: %u (offset=%u)\n", + tmpModule->modName, + tmpModule->tickCount, + tmpModule->tickOffset); +#endif + } + fprintf(rixFile,"]\n"); + fflush(rixFile); + + // Now we open the command channel. + hpcRixCmd = getenv("HPCRIXCMD"); + assert(hpcRixCmd != NULL); + rixCmdFile = fopen(hpcRixCmd,"r"); + assert(rixCmdFile != NULL); + + // Allocate the tixBox breakpoint array + // These are set to 1 if you want to + // stop at a specific breakpoint + tixBoxBP = (int *)calloc(1,sizeof(int)); + } + } + /* Called at the end of execution, to write out the Hpc *.tix file * for this exection. Safe to call, even if coverage is not used. */ @@ -279,7 +525,7 @@ exitHpc(void) { int i, comma; #if DEBUG_HPC - printf("exitHpc\n"); + fprintf(stderr,"exitHpc\n"); #endif if (hpc_inited == 0) { @@ -336,6 +582,14 @@ exitHpc(void) { fprintf(f,"]\n"); fclose(f); + + if (rixFile != NULL) { + hs_hpc_tick(RixFinishedOp,(StgThreadID)0); + fclose(rixFile); + } + if (rixCmdFile != NULL) { + fclose(rixCmdFile); + } }