Add missing documention of -Da DEBUG: apply flag to RTS help.

[ghc-hetmet.git] / rts / RtsFlags.c

diff --git a/rts/RtsFlags.c b/rts/RtsFlags.c
index 1cbd569..8690040 100644 (file)
--- a/rts/RtsFlags.c
+++ b/rts/RtsFlags.c
@@ -178,6 +178,7 @@ void initRtsFlagsDefaults(void)
     RtsFlags.DebugFlags.prof           = rtsFalse;
     RtsFlags.DebugFlags.gran           = rtsFalse;
     RtsFlags.DebugFlags.par            = rtsFalse;
+    RtsFlags.DebugFlags.apply          = rtsFalse;
     RtsFlags.DebugFlags.linker         = rtsFalse;
     RtsFlags.DebugFlags.squeeze                = rtsFalse;
     RtsFlags.DebugFlags.hpc            = rtsFalse;
@@ -208,13 +209,15 @@ void initRtsFlagsDefaults(void)
     RtsFlags.ConcFlags.ctxtSwitchTime  = 20;  /* In milliseconds */
 
     RtsFlags.MiscFlags.install_signal_handlers = rtsTrue;
+    RtsFlags.MiscFlags.machineReadable = rtsFalse;
     RtsFlags.MiscFlags.linkerMemBase    = 0;
 
 #ifdef THREADED_RTS
     RtsFlags.ParFlags.nNodes           = 1;
     RtsFlags.ParFlags.migrate           = rtsTrue;
     RtsFlags.ParFlags.wakeupMigrate     = rtsFalse;
-    RtsFlags.ParFlags.gcThreads         = 1;
+    RtsFlags.ParFlags.parGcEnabled      = 1;
+    RtsFlags.ParFlags.parGcGen          = 1;
 #endif
 
 #ifdef PAR
@@ -443,6 +446,7 @@ usage_text[] = {
 "  -Dp  DEBUG: prof",
 "  -Dr  DEBUG: gran",
 "  -DP  DEBUG: par",
+"  -Da  DEBUG: apply",
 "  -Dl  DEBUG: linker",
 "  -Dm  DEBUG: stm",
 "  -Dz  DEBUG: stack squezing",
@@ -450,8 +454,9 @@ usage_text[] = {
 "",
 #endif /* DEBUG */
 #if defined(THREADED_RTS) && !defined(NOSMP)
-"  -N<n>     Use <n> OS threads (default: 1) (also sets -g)",
-"  -g<n>     Use <n> OS threads for GC (default: 1)",
+"  -N<n>     Use <n> OS threads (default: 1)",
+"  -q1       Use one OS thread for GC (turns off parallel GC)",
+"  -qg<n>    Use parallel GC only for generations >= <n> (default: 1)",
 "  -qm       Don't automatically migrate threads between CPUs",
 "  -qw       Migrate a thread to the current CPU when it is woken up",
 #endif
@@ -694,6 +699,10 @@ error = rtsTrue;
                                &rts_argv[arg][2])) {
                       RtsFlags.MiscFlags.install_signal_handlers = rtsFalse;
                   }
+                  else if (strequal("machine-readable",
+                               &rts_argv[arg][2])) {
+                      RtsFlags.MiscFlags.machineReadable = rtsTrue;
+                  }
                   else if (strequal("info",
                                &rts_argv[arg][2])) {
                       printRtsInfo();
@@ -1132,8 +1141,6 @@ error = rtsTrue;
                if (rts_argv[arg][2] != '\0') {
                    RtsFlags.ParFlags.nNodes
                      = strtol(rts_argv[arg]+2, (char **) NULL, 10);
-                    // set -g at the same time as -N by default
-                   RtsFlags.ParFlags.gcThreads = RtsFlags.ParFlags.nNodes;
                    if (RtsFlags.ParFlags.nNodes <= 0) {
                      errorBelch("bad value for -N");
                      error = rtsTrue;
@@ -1149,15 +1156,17 @@ error = rtsTrue;
 
              case 'g':
                THREADED_BUILD_ONLY(
-               if (rts_argv[arg][2] != '\0') {
-                   RtsFlags.ParFlags.gcThreads
-                     = strtol(rts_argv[arg]+2, (char **) NULL, 10);
-                   if (RtsFlags.ParFlags.gcThreads <= 0) {
-                     errorBelch("bad value for -g");
-                     error = rtsTrue;
-                   }
-               }
-               ) break;
+                   switch (rts_argv[arg][2]) {
+                    case '1':
+                        // backwards compat only
+                        RtsFlags.ParFlags.parGcEnabled = rtsFalse;
+                        break;
+                   default:
+                       errorBelch("unknown RTS option: %s",rts_argv[arg]);
+                       error = rtsTrue;
+                       break;
+                    }
+                    ) break;
 
              case 'q':
                    switch (rts_argv[arg][2]) {
@@ -1165,6 +1174,18 @@ error = rtsTrue;
                        errorBelch("incomplete RTS option: %s",rts_argv[arg]);
                        error = rtsTrue;
                        break;
+                    case '1':
+                        RtsFlags.ParFlags.parGcEnabled = rtsFalse;
+                        break;
+                    case 'g':
+                        if (rts_argv[arg][3] != '\0') {
+                            RtsFlags.ParFlags.parGcGen
+                                = strtol(rts_argv[arg]+3, (char **) NULL, 10);
+                        } else {
+                            errorBelch("bad value for -qg");
+                            error = rtsTrue;
+                        }
+                        break;
                    case 'm':
                        RtsFlags.ParFlags.migrate = rtsFalse;
                        break;