COVERAGE! Also fixes prvm always running as PRVMSLOWINTERPRETER :(

Very basic implementation. Needs a persistent store later, I suppose, as
well as better output (e.g. for statements and coverage(), also show
function, file and line).

prvm_coverage 1: report function call coverage
prvm_coverage 2: report coverage() builtin coverage (compiler aided)
prvm_coverage 4: report statement coverage (SLOW)

git-svn-id: svn://svn.icculus.org/twilight/trunk/darkplaces@12042 d7cf8633-e32d-0410-b094-e92efae38249

diff --git a/clvm_cmds.c b/clvm_cmds.c
index 20d71a30d4083f43e7c5f7048baf965f9c804552..0099933acbcce3ff32f10270e0a5816ba195aa84 100644 (file)
--- a/clvm_cmds.c
+++ b/clvm_cmds.c
@@ -4980,6 +4980,8 @@ VM_CL_RotateMoves,                                        // #638
 VM_digest_hex,                                         // #639
 VM_CL_V_CalcRefdef,                                    // #640 void(entity e) V_CalcRefdef (DP_CSQC_V_CALCREFDEF)
 NULL,                                                  // #641
+VM_coverage,                                           // #642
+NULL
 };
 
 const int vm_cl_numbuiltins = sizeof(vm_cl_builtins) / sizeof(prvm_builtin_t);

diff --git a/dpdefs/csprogsdefs.qc b/dpdefs/csprogsdefs.qc
index f858afba2fdaa3457f8c1cc33b63dfcf336a9b3c..7e173f0401044939593b09f1c4b2fa79708d91cc 100644 (file)
--- a/dpdefs/csprogsdefs.qc
+++ b/dpdefs/csprogsdefs.qc
@@ -1428,6 +1428,12 @@ void(float fh, entity e) writetofile = #606;
 float(string s) isfunction = #607;
 void(entity e, string s) parseentitydata = #608;
 
+//DP_COVERAGE
+//idea: divVerent
+//darkplaces implementation: divVerent
+//function definitions:
+void coverage() = #642;  // Reports a coverage event. The engine counts for each of the calls to this builtin whether it has been called.
+
 // assorted builtins
 const float            STAT_MOVEVARS_TICRATE           = 240;
 const float            STAT_MOVEVARS_TIMESCALE         = 241;

diff --git a/dpdefs/dpextensions.qc b/dpdefs/dpextensions.qc
index 0a5504392736ebd13e4ee1456a5bb39e80a71950..dfd260bfb9d93e71a6d54876948e6993f5ce42f1 100644 (file)
--- a/dpdefs/dpextensions.qc
+++ b/dpdefs/dpextensions.qc
@@ -2544,7 +2544,11 @@ void(float pause) setpause = #531;
 //
 //Note: it is worth considering that network-related functions may be called during the pause (including customizeentityforclient for example), and it is also important to consider the continued use of the KRIMZON_SV_PARSECLIENTCOMMAND extension while paused (chatting players, etc), players may also join/leave during the pause.  In other words, the only things that are not called are think and other time-related functions.
 
-
+//DP_COVERAGE
+//idea: divVerent
+//darkplaces implementation: divVerent
+//function definitions:
+void coverage() = #642;  // Reports a coverage event. The engine counts for each of the calls to this builtin whether it has been called.
 
 
 // EXPERIMENTAL (not finalized) EXTENSIONS:

diff --git a/dpdefs/menudefs.qc b/dpdefs/menudefs.qc
index 1f817cd2029de82d68bba5731993800a9d778ea0..cb7ef55abb6ef01f1ccf952446fb8089e44d8490 100644 (file)
--- a/dpdefs/menudefs.qc
+++ b/dpdefs/menudefs.qc
@@ -530,6 +530,12 @@ float FIELD_FUNCTION = 6;
 //getentityfieldstring returns data as would be written to a savegame, eg... "0.05" (float), "0 0 1" (vector), or "Hello World!" (string). Function names can also be returned.
 //putentityfieldstring puts the data returned by getentityfieldstring back into the entity.
 
+//DP_COVERAGE
+//idea: divVerent
+//darkplaces implementation: divVerent
+//function definitions:
+void coverage() = #642;  // Reports a coverage event. The engine counts for each of the calls to this builtin whether it has been called.
+
 // assorted undocumented extensions
 string(string, float) netaddress_resolve = #625;
 string(string search, string replace, string subject) strreplace = #484;

diff --git a/mvm_cmds.c b/mvm_cmds.c
index 12fcecdfd1e63de0b9e3822d009bcaa222c8a7dd..1b915c1f5870f63a58acbd162246134e7ee6916b 100644 (file)
--- a/mvm_cmds.c
+++ b/mvm_cmds.c
@@ -13,8 +13,9 @@
 const char *vm_m_extensions =
 "BX_WAL_SUPPORT "
 "DP_CINEMATIC_DPV "
-"DP_CSQC_BINDMAPS "
+"DP_COVERAGE "
 "DP_CRYPTO "
+"DP_CSQC_BINDMAPS "
 "DP_GFX_FONTS "
 "DP_GFX_FONTS_FREETYPE "
 "DP_UTF8 "
@@ -1583,6 +1584,7 @@ NULL,                                                     // #638
 VM_digest_hex,                                         // #639
 NULL,                                                  // #640
 VM_M_crypto_getmyidstatus,                             // #641 float(float i) crypto_getmyidstatus
+VM_coverage,                                           // #642
 NULL
 };
 

diff --git a/progsvm.h b/progsvm.h
index e1fd5055fe8b5b6d631f15cec0c4d4376d3a3eee..fb40545e8fbca2bbdd4097d2c919e613253bff9e 100644 (file)
--- a/progsvm.h
+++ b/progsvm.h
@@ -534,6 +534,7 @@ typedef struct prvm_prog_s
        double                          profiletime; // system time when last PRVM_CallProfile was called (or PRVM_Prog_Load initially)
        unsigned int            id; // increasing unique id of progs instance
        mfunction_t                     *functions;
+       int                             functions_covered;
        char                            *strings;
        int                                     stringssize;
        ddef_t                          *fielddefs;
@@ -565,6 +566,10 @@ typedef struct prvm_prog_s
        int                                     *statement_columnnums; // NULL if not available
 
        double                          *statement_profile; // only incremented if prvm_statementprofiling is on
+       int                             statements_covered;
+       double                          *explicit_profile; // only incremented if prvm_statementprofiling is on
+       int                             explicit_covered;
+       int                             numexplicitcoveragestatements;
 
        union {
                prvm_vec_t *fp;
@@ -892,4 +897,6 @@ void VM_FrameBlendFromFrameGroupBlend(frameblend_t *frameblend, const framegroup
 void VM_UpdateEdictSkeleton(prvm_prog_t *prog, prvm_edict_t *ed, const dp_model_t *edmodel, const frameblend_t *frameblend);
 void VM_RemoveEdictSkeleton(prvm_prog_t *prog, prvm_edict_t *ed);
 
+void PRVM_ExplicitCoverageEvent(prvm_prog_t *prog, int statement);
+
 #endif

diff --git a/prvm_cmds.c b/prvm_cmds.c
index 00c9ede9fcd5dc6ad0fa253d6ede33caf399fa0b..e375a50da8a205f0d1b9c1d567171fcbab788c76 100644 (file)
--- a/prvm_cmds.c
+++ b/prvm_cmds.c
@@ -7340,3 +7340,11 @@ void VM_physics_addtorque(prvm_prog_t *prog)
        VectorCopy(PRVM_G_VECTOR(OFS_PARM1), f.v1);
        VM_physics_ApplyCmd(ed, &f);
 }
+
+extern cvar_t prvm_coverage;
+void VM_coverage(prvm_prog_t *prog)
+{
+       VM_SAFEPARMCOUNT(0, VM_coverage);
+       if (prog->explicit_profile[prog->xstatement]++ == 0 && (prvm_coverage.integer & 2))
+               PRVM_ExplicitCoverageEvent(prog, prog->xstatement);
+}

diff --git a/prvm_cmds.h b/prvm_cmds.h
index 75589dea71efb7b4e843f55fc9fc5dbb30ac8938..708a3621151c07e70a88b39e3e2224b12e161658 100644 (file)
--- a/prvm_cmds.h
+++ b/prvm_cmds.h
@@ -488,4 +488,6 @@ void VM_physics_enable(prvm_prog_t *prog);
 void VM_physics_addforce(prvm_prog_t *prog);
 void VM_physics_addtorque(prvm_prog_t *prog);
 
+void VM_coverage(prvm_prog_t *prog);
+
 #endif

diff --git a/prvm_edict.c b/prvm_edict.c
index 882a558a99b17b603ea2a6a244def2683120c552..b83ae1a07cc3a6b5238a618d6db72ab45391a05a 100644 (file)
--- a/prvm_edict.c
+++ b/prvm_edict.c
@@ -35,6 +35,7 @@ cvar_t prvm_traceqc = {0, "prvm_traceqc", "0", "prints every QuakeC statement as
 // LordHavoc: counts usage of each QuakeC statement
 cvar_t prvm_statementprofiling = {0, "prvm_statementprofiling", "0", "counts how many times each QuakeC statement has been executed, these counts are displayed in prvm_printfunction output (if enabled)"};
 cvar_t prvm_timeprofiling = {0, "prvm_timeprofiling", "0", "counts how long each function has been executed, these counts are displayed in prvm_profile output (if enabled)"};
+cvar_t prvm_coverage = {0, "prvm_coverage", "0", "report and count coverage events (1: per-function, 2: coverage() builtin, 4: per-statement)"};
 cvar_t prvm_backtraceforwarnings = {0, "prvm_backtraceforwarnings", "0", "print a backtrace for warnings too"};
 cvar_t prvm_leaktest = {0, "prvm_leaktest", "0", "try to detect memory leaks in strings or entities"};
 cvar_t prvm_leaktest_ignore_classnames = {0, "prvm_leaktest_ignore_classnames", "", "classnames of entities to NOT leak check because they are found by find(world, classname, ...) but are actually spawned by QC code (NOT map entities)"};
@@ -2010,6 +2011,7 @@ void PRVM_Prog_Load(prvm_prog_t *prog, const char * filename, unsigned char * da
        prog->statements = (mstatement_t *)Mem_Alloc(prog->progs_mempool, prog->progs_numstatements * sizeof(mstatement_t));
        // allocate space for profiling statement usage
        prog->statement_profile = (double *)Mem_Alloc(prog->progs_mempool, prog->progs_numstatements * sizeof(*prog->statement_profile));
+       prog->explicit_profile = (double *)Mem_Alloc(prog->progs_mempool, prog->progs_numstatements * sizeof(*prog->statement_profile));
        // functions need to be converted to the memory format
        prog->functions = (mfunction_t *)Mem_Alloc(prog->progs_mempool, sizeof(mfunction_t) * prog->progs_numfunctions);
 
@@ -2215,6 +2217,11 @@ void PRVM_Prog_Load(prvm_prog_t *prog, const char * filename, unsigned char * da
                        break;
                // 1 global
                case OP_CALL0:
+                       if ( a < prog->progs_numglobals)
+                               if ( prog->globals.ip[remapglobal(a)] >= 0 )
+                                       if ( prog->globals.ip[remapglobal(a)] < prog->progs_numfunctions )
+                                               if ( !prog->functions[prog->globals.ip[remapglobal(a)]].first_statement == -642 )
+                                                       ++prog->numexplicitcoveragestatements;
                case OP_CALL1:
                case OP_CALL2:
                case OP_CALL3:
@@ -2901,6 +2908,7 @@ void PRVM_Init (void)
        Cvar_RegisterVariable (&prvm_traceqc);
        Cvar_RegisterVariable (&prvm_statementprofiling);
        Cvar_RegisterVariable (&prvm_timeprofiling);
+       Cvar_RegisterVariable (&prvm_coverage);
        Cvar_RegisterVariable (&prvm_backtraceforwarnings);
        Cvar_RegisterVariable (&prvm_leaktest);
        Cvar_RegisterVariable (&prvm_leaktest_ignore_classnames);

diff --git a/prvm_exec.c b/prvm_exec.c
index 40b19d44c9b3c91a4628134ec1963c660a094b93..1be07894330e569c26fc0e40c6cb274218a7d9a1 100644 (file)
--- a/prvm_exec.c
+++ b/prvm_exec.c
@@ -119,6 +119,7 @@ const char *prvm_opnames[] =
 PRVM_PrintStatement
 =================
 */
+extern cvar_t prvm_coverage;
 extern cvar_t prvm_statementprofiling;
 extern cvar_t prvm_timeprofiling;
 static void PRVM_PrintStatement(prvm_prog_t *prog, mstatement_t *s)
@@ -185,8 +186,11 @@ void PRVM_PrintFunctionStatements (prvm_prog_t *prog, const char *name)
        for (i = firststatement;i < endstatement;i++)
        {
                PRVM_PrintStatement(prog, prog->statements + i);
-               prog->statement_profile[i] = 0;
+               if (!(prvm_coverage.integer & 4))
+                       prog->statement_profile[i] = 0;
        }
+       if (prvm_coverage.integer & 4)
+               Con_Printf("Collecting statement coverage, not flushing statement profile.\n");
 }
 
 /*
@@ -455,6 +459,12 @@ void PRVM_Profile_f (void)
        prvm_prog_t *prog;
        int howmany;
 
+       if (prvm_coverage.integer & 1)
+       {
+               Con_Printf("Collecting function coverage, cannot profile - sorry!\n");
+               return;
+       }
+
        howmany = 1<<30;
        if (Cmd_Argc() == 3)
                howmany = atoi(Cmd_Argv(2));
@@ -475,6 +485,12 @@ void PRVM_ChildProfile_f (void)
        prvm_prog_t *prog;
        int howmany;
 
+       if (prvm_coverage.integer & 1)
+       {
+               Con_Printf("Collecting function coverage, cannot profile - sorry!\n");
+               return;
+       }
+
        howmany = 1<<30;
        if (Cmd_Argc() == 3)
                howmany = atoi(Cmd_Argv(2));
@@ -664,6 +680,28 @@ void PRVM_Init_Exec(prvm_prog_t *prog)
        // nothing here yet
 }
 
+/*
+==================
+Coverage
+==================
+*/
+static void PRVM_FunctionCoverageEvent(prvm_prog_t *prog, mfunction_t *func)
+{
+       ++prog->functions_covered;
+       Con_Printf("prvm_coverage: %s just called %s for the first time. Coverage: %.2f%%.\n", prog->name, PRVM_GetString(prog, func->s_name), prog->functions_covered * 100.0 / prog->numfunctions);
+}
+void PRVM_ExplicitCoverageEvent(prvm_prog_t *prog, int statement)
+{
+       ++prog->explicit_covered;
+       Con_Printf("prvm_coverage: %s just executed a coverage() statement for the first time. Coverage: %.2f%%.\n", prog->name, prog->explicit_covered * 100.0 / prog->numexplicitcoveragestatements);
+}
+static void PRVM_StatementCoverageEvent(prvm_prog_t *prog, int statement)
+{
+       ++prog->statements_covered;
+       Con_Printf("prvm_coverage: %s just executed a statement for the first time. Coverage: %.2f%%.\n", prog->name, prog->statements_covered * 100.0 / prog->numstatements);
+}
+
+
 #define OPA ((prvm_eval_t *)&prog->globals.fp[st->operand[0]])
 #define OPB ((prvm_eval_t *)&prog->globals.fp[st->operand[1]])
 #define OPC ((prvm_eval_t *)&prog->globals.fp[st->operand[2]])
@@ -732,11 +770,12 @@ void MVM_ExecuteProgram (prvm_prog_t *prog, func_t fnum, const char *errormessag
        // instead of counting instructions, we count jumps
        jumpcount = 0;
        // add one to the callcount of this function because otherwise engine-called functions aren't counted
-       prog->xfunction->callcount++;
+       if (prog->xfunction->callcount++ == 0 && (prvm_coverage.integer & 1))
+               PRVM_FunctionCoverageEvent(prog, prog->xfunction);
 
 chooseexecprogram:
        cachedpr_trace = prog->trace;
-       if (prvm_statementprofiling.integer || prog->trace || prog->watch_global >= 0 || prog->watch_edict >= 0 || prog->break_statement >= 0)
+       if (prvm_statementprofiling.integer || prog->trace || prog->watch_global_type != ev_void || prog->watch_field_type != ev_void || prog->break_statement >= 0 || (prvm_coverage.integer & 4))
        {
 #define PRVMSLOWINTERPRETER 1
                if (prvm_timeprofiling.integer)
@@ -838,11 +877,12 @@ void CLVM_ExecuteProgram (prvm_prog_t *prog, func_t fnum, const char *errormessa
        // instead of counting instructions, we count jumps
        jumpcount = 0;
        // add one to the callcount of this function because otherwise engine-called functions aren't counted
-       prog->xfunction->callcount++;
+       if (prog->xfunction->callcount++ == 0 && (prvm_coverage.integer & 1))
+               PRVM_FunctionCoverageEvent(prog, prog->xfunction);
 
 chooseexecprogram:
        cachedpr_trace = prog->trace;
-       if (prvm_statementprofiling.integer || prog->trace || prog->watch_global >= 0 || prog->watch_edict >= 0 || prog->break_statement >= 0)
+       if (prvm_statementprofiling.integer || prog->trace || prog->watch_global_type != ev_void || prog->watch_field_type != ev_void || prog->break_statement >= 0 || (prvm_coverage.integer & 4))
        {
 #define PRVMSLOWINTERPRETER 1
                if (prvm_timeprofiling.integer)
@@ -948,11 +988,12 @@ void PRVM_ExecuteProgram (prvm_prog_t *prog, func_t fnum, const char *errormessa
        // instead of counting instructions, we count jumps
        jumpcount = 0;
        // add one to the callcount of this function because otherwise engine-called functions aren't counted
-       prog->xfunction->callcount++;
+       if (prog->xfunction->callcount++ == 0 && (prvm_coverage.integer & 1))
+               PRVM_FunctionCoverageEvent(prog, prog->xfunction);
 
 chooseexecprogram:
        cachedpr_trace = prog->trace;
-       if (prvm_statementprofiling.integer || prog->trace || prog->watch_global >= 0 || prog->watch_edict >= 0 || prog->break_statement >= 0)
+       if (prvm_statementprofiling.integer || prog->trace || prog->watch_global_type != ev_void || prog->watch_field_type != ev_void || prog->break_statement >= 0 || (prvm_coverage.integer & 4))
        {
 #define PRVMSLOWINTERPRETER 1
                if (prvm_timeprofiling.integer)

diff --git a/prvm_execprogram.h b/prvm_execprogram.h
index 02b444b8c728b3e407ca69cf2590d5b9d00a737a..ea2ba3749fa85b2351ffaa5e9dc562b75ddef845 100644 (file)
--- a/prvm_execprogram.h
+++ b/prvm_execprogram.h
@@ -36,7 +36,8 @@
 #if PRVMSLOWINTERPRETER
                        if (prog->trace)
                                PRVM_PrintStatement(prog, st);
-                       prog->statement_profile[st - cached_statements]++;
+                       if (prog->statement_profile[st - cached_statements]++ == 0 && (prvm_coverage.integer & 4))
+                               PRVM_StatementCoverageEvent(prog, st - cached_statements);
                        if (prog->break_statement >= 0)
                                if ((st - cached_statements) == prog->break_statement)
                                {
@@ -372,7 +373,8 @@
                                }
 
                                newf = &prog->functions[OPA->function];
-                               newf->callcount++;
+                               if (newf->callcount++ == 0 && (prvm_coverage.integer & 1))
+                                       PRVM_FunctionCoverageEvent(prog, newf);
 
                                if (newf->first_statement < 0)
                                {

diff --git a/svvm_cmds.c b/svvm_cmds.c
index c75dd07740ae4599409952601096c7937909179e..11fa95983dbfdb14bb2e1bc685383e3d2cd3b7e3 100644 (file)
--- a/svvm_cmds.c
+++ b/svvm_cmds.c
@@ -19,6 +19,7 @@ const char *vm_sv_extensions =
 "DP_CON_SET "
 "DP_CON_SETA "
 "DP_CON_STARTMAP "
+"DP_COVERAGE "
 "DP_CRYPTO "
 "DP_CSQC_BINDMAPS "
 "DP_CSQC_ENTITYWORLDOBJECT "
@@ -3823,6 +3824,9 @@ NULL,                                                     // #637
 NULL,                                                  // #638
 VM_digest_hex,                                         // #639
 NULL,                                                  // #640
+NULL,                                                  // #641
+VM_coverage,                                           // #642
+NULL,                                                  // #643
 };
 
 const int vm_sv_numbuiltins = sizeof(vm_sv_builtins) / sizeof(prvm_builtin_t);