--- old/src/share/vm/runtime/os.hpp 2012-07-02 09:41:36.771927273 -0700 +++ new/src/share/vm/runtime/os.hpp 2012-07-02 09:41:36.619929185 -0700 @@ -640,6 +640,10 @@ // On Windows this will create an actual minidump, on Linux/Solaris it will simply check core dump limits static void check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize); + // Get the default path to the core file + // Returns the length of the string + static int get_core_path(char* buffer, size_t bufferSize); + // JVMTI & JVM monitoring and management support // The thread_cpu_time() and current_thread_cpu_time() are only // supported if is_thread_cpu_time_supported() returns true. --- old/src/os/posix/vm/os_posix.cpp 2012-07-02 09:41:36.747927576 -0700 +++ new/src/os/posix/vm/os_posix.cpp 2012-07-02 09:41:36.647928831 -0700 @@ -33,19 +33,19 @@ // Check core dump limit and report possible place where core can be found void os::check_or_create_dump(void* exceptionRecord, void* contextRecord, char* buffer, size_t bufferSize) { + int n; struct rlimit rlim; - static char cwd[O_BUFLEN]; bool success; - get_current_directory(cwd, sizeof(cwd)); + n = get_core_path(buffer, bufferSize); if (getrlimit(RLIMIT_CORE, &rlim) != 0) { - jio_snprintf(buffer, bufferSize, "%s/core or core.%d (may not exist)", cwd, current_process_id()); + jio_snprintf(buffer + n, bufferSize - n, "/core or core.%d (may not exist)", current_process_id()); success = true; } else { switch(rlim.rlim_cur) { case RLIM_INFINITY: - jio_snprintf(buffer, bufferSize, "%s/core or core.%d", cwd, current_process_id()); + jio_snprintf(buffer + n, bufferSize - n, "/core or core.%d", current_process_id()); success = true; break; case 0: @@ -53,7 +53,7 @@ success = false; break; default: - jio_snprintf(buffer, bufferSize, "%s/core or core.%d (max size %lu kB). To ensure a full core dump, try \"ulimit -c unlimited\" before starting Java again", cwd, current_process_id(), (unsigned long)(rlim.rlim_cur >> 10)); + jio_snprintf(buffer + n, bufferSize - n, "/core or core.%d (max size %lu kB). To ensure a full core dump, try \"ulimit -c unlimited\" before starting Java again", current_process_id(), (unsigned long)(rlim.rlim_cur >> 10)); success = true; break; } --- old/src/os/linux/vm/os_linux.cpp 2012-07-02 09:41:36.763927373 -0700 +++ new/src/os/linux/vm/os_linux.cpp 2012-07-02 09:41:36.603929385 -0700 @@ -5447,6 +5447,18 @@ return true; } +// Get the default path to the core file +// Returns the length of the string +int os::get_core_path(char* buffer, size_t bufferSize) { + const char* p = get_current_directory(buffer, bufferSize); + + if (p == NULL) { + assert(p != NULL, "failed to get current directory"); + return 0; + } + + return strlen(buffer); +} #ifdef JAVASE_EMBEDDED // --- old/src/os/bsd/vm/os_bsd.cpp 2012-07-02 09:41:36.763927373 -0700 +++ new/src/os/bsd/vm/os_bsd.cpp 2012-07-02 09:41:36.679928431 -0700 @@ -5801,3 +5801,14 @@ return true; } + +// Get the default path to the core file +// Returns the length of the string +int os::get_core_path(char* buffer, size_t bufferSize) { + int n = jio_snprintf(buffer, bufferSize, "/cores"); + + // Truncate if theoretical string was longer than bufferSize + n = MIN2(n, (int)bufferSize); + + return n; +} --- old/src/os/solaris/vm/os_solaris.cpp 2012-07-02 09:41:36.763927373 -0700 +++ new/src/os/solaris/vm/os_solaris.cpp 2012-07-02 09:41:36.607929335 -0700 @@ -6537,3 +6537,16 @@ INTERRUPTIBLE_RETURN_INT_NORESTART(::bind(fd, him, len),\ os::Solaris::clear_interrupted); } + +// Get the default path to the core file +// Returns the length of the string +int os::get_core_path(char* buffer, size_t bufferSize) { + const char* p = get_current_directory(buffer, bufferSize); + + if (p == NULL) { + assert(p != NULL, "failed to get current directory"); + return 0; + } + + return strlen(buffer); +}