diff -r 647f633280c3 -r 2c05592cf0f2 jdk/src/share/bin/java.c --- a/jdk/src/share/bin/java.c Wed Aug 06 02:11:17 2014 +0400 +++ b/jdk/src/share/bin/java.c Tue Aug 05 19:29:00 2014 -0700 @@ -98,6 +98,7 @@ */ static void SetClassPath(const char *s); static void SelectVersion(int argc, char **argv, char **main_class); +static void SetJvmEnvironment(int argc, char **argv); static jboolean ParseArguments(int *pargc, char ***pargv, int *pmode, char **pwhat, int *pret, const char *jrepath); @@ -238,6 +239,10 @@ jvmpath, sizeof(jvmpath), jvmcfg, sizeof(jvmcfg)); + if (!IsJavaArgs()) { + SetJvmEnvironment(argc,argv); + } + ifn.CreateJavaVM = 0; ifn.GetDefaultJavaVMInitArgs = 0; @@ -640,6 +645,67 @@ return jvmtype; } +/* + * static void SetJvmEnvironment(int argc, char **argv); + * Is called just before the JVM is loaded. We can set env variables + * that are consumed by the JVM. This function is non-destructive, + * leaving the arg list intact. The first use is for the JVM flag + * -XX:NativeMemoryTracking=value. + */ +static void +SetJvmEnvironment(int argc, char **argv) { + + static const char* NMT_Env_Name = "NMT_LEVEL_"; + + int i; + for (i = 0; i < argc; i++) { + /* + * The following case checks for "-XX:NativeMemoryTracking=value". + * If value is non null, an environmental variable set to this value + * will be created to be used by the JVM. + * The argument is passed to the JVM, which will check validity. + * The JVM is responsible for removing the env variable. + */ + char *arg = argv[i]; + if (JLI_StrCCmp(arg, "-XX:NativeMemoryTracking=") == 0) { + int retval; + // get what follows this parameter, include "=" + size_t pnlen = JLI_StrLen("-XX:NativeMemoryTracking="); + if (JLI_StrLen(arg) > pnlen) { + char* value = arg + pnlen; + size_t pbuflen = pnlen + JLI_StrLen(value) + 10; // 10 max pid digits + + /* + * ensures that malloc successful + * DONT JLI_MemFree() pbuf. JLI_PutEnv() uses system call + * that could store the address. + */ + char * pbuf = (char*)JLI_MemAlloc(pbuflen); + + JLI_Snprintf(pbuf, pbuflen, "%s%d=%s", NMT_Env_Name, JLI_GetPid(), value); + retval = JLI_PutEnv(pbuf); + if (JLI_IsTraceLauncher()) { + char* envName; + char* envBuf; + + // ensures that malloc successful + envName = (char*)JLI_MemAlloc(pbuflen); + JLI_Snprintf(envName, pbuflen, "%s%d", NMT_Env_Name, JLI_GetPid()); + + printf("TRACER_MARKER: NativeMemoryTracking: env var is %s\n",envName); + printf("TRACER_MARKER: NativeMemoryTracking: putenv arg %s\n",pbuf); + envBuf = getenv(envName); + printf("TRACER_MARKER: NativeMemoryTracking: got value %s\n",envBuf); + free(envName); + } + + } + + } + + } +} + /* copied from HotSpot function "atomll()" */ static int parse_size(const char *s, jlong *result) {