Merge branch 'master' into release

Author: François Févotte

CHANGELOG.md

@@ -16,7 +16,12 @@ This version is based on Valgrind-3.12.0.
 - Continuous integration using the Travis system.
 - Improve Delta-Debugging customization through environment variables.
 
+### Changed
 
+- There is no need anymore for an external, statically compiled libc/libm.
+
+
+---
 
 ## v0.9.0 - 2017-03-31
 

Makefile.am

@@ -51,8 +51,7 @@ verrou_@VGCONF_ARCH_PRI@_@VGCONF_OS@_CXXFLAGS     = \
 verrou_@VGCONF_ARCH_PRI@_@VGCONF_OS@_DEPENDENCIES = \
 	$(TOOL_DEPENDENCIES_@VGCONF_PLATFORM_PRI_CAPS@)
 verrou_@VGCONF_ARCH_PRI@_@VGCONF_OS@_LDADD        = \
-	$(TOOL_LDADD_@VGCONF_PLATFORM_PRI_CAPS@)    \
-	-lm -lc
+	$(TOOL_LDADD_@VGCONF_PLATFORM_PRI_CAPS@)
 verrou_@VGCONF_ARCH_PRI@_@VGCONF_OS@_LDFLAGS      = \
 	$(TOOL_LDFLAGS_@VGCONF_PLATFORM_PRI_CAPS@)
 verrou_@VGCONF_ARCH_PRI@_@VGCONF_OS@_LINK = \

README.md

@@ -45,6 +45,14 @@ Build and install:
     make install
 
 
+### Load the environment
+
+In order to actually use Verrou, you must load the correct environment. This can
+be done using:
+
+    source PREFIX/env.sh
+
+
 ### Test (optional)
 
 #### General tests

verrou_dd

@@ -23,12 +23,12 @@ def runCmd(cmd, fname, envvars=None):
     if envvars is None:
         envvars = {}
 
-    with open("%s.out"%fname, "w") as fout, \
-         open("%s.err"%fname, "w") as ferr:
-        env = copy.deepcopy(os.environ)
-        for var in envvars:
-            env[var] = envvars[var]
-        return subprocess.call(cmd, env=env, stdout=fout, stderr=ferr)
+    with open("%s.out"%fname, "w") as fout:
+        with open("%s.err"%fname, "w") as ferr:
+            env = copy.deepcopy(os.environ)
+            for var in envvars:
+                env[var] = envvars[var]
+            return subprocess.call(cmd, env=env, stdout=fout, stderr=ferr)
 
 def prepareOutput(dirname):
     shutil.rmtree(dirname, ignore_errors=True)

vr_fpRepr.hxx

@@ -208,13 +208,19 @@ inline REALTYPE nextAfter(REALTYPE a){
 
 template<>
 inline double nextAfter<double>(double a){
-  return nextafter(a,DBL_MAX );
+  double res=a;
+  __uint64_t* resU=reinterpret_cast<__uint64_t*>(&res);
+  (*resU)+=1;
+  return res;
 };
 
 
 template<>
 inline float nextAfter<float>(float a){
-  return nextafterf(a,FLT_MAX    );
+  float res=a;
+  __uint32_t* resU=reinterpret_cast<__uint32_t*>(&res);
+  (*resU)+=1;
+  return res;
 };
 
 
@@ -226,11 +232,17 @@ inline REALTYPE nextPrev(REALTYPE a){
 
 template<>
 inline double nextPrev<double>(double a){
-  return nextafter(a,-DBL_MAX );
+    double res=a;
+  __uint64_t* resU=reinterpret_cast<__uint64_t*>(&res);
+  (*resU)-=1;
+  return res;
 };
 
 
 template<>
 inline float nextPrev<float>(float a){
-  return nextafterf(a,-FLT_MAX    );
+  float res=a;
+  __uint32_t* resU=reinterpret_cast<__uint32_t*>(&res);
+  (*resU)-=1;
+  return res;
 };

vr_rand.hxx

@@ -32,6 +32,9 @@
 
 #pragma once
 
+extern "C" {
+#include "pub_tool_libcproc.h"
+}
 
 class vrRand{
 public:
@@ -49,7 +52,9 @@ public:
    };
 
   inline void setTimeSeed(unsigned int pid){
-    unsigned int seed=time(NULL) + pid;
+    struct vki_timeval now;
+    VG_(gettimeofday)(&now, NULL);
+    unsigned int seed = now.tv_usec + pid;
     VG_(umsg)("First seed : %u\n",seed);
     setSeed(seed);
   };
@@ -90,13 +95,13 @@ private:
     //    srand(c);
     vr_next_=c;
   }
-  
+
   inline int privaterand(){
     //    rand();
     vr_next_ = vr_next_ * 1103515245 + 12345;
     return (unsigned int)(vr_next_/65536) % 32768;
   }
-  
+
   inline int privateRAND_MAX()const{
     //    return RAND_MAX;
     return 32767;