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提交 06939246 编写于 作者: Z zgu
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src/cpu/sparc/vm/vmStructs_sparc.hpp
浏览文件 @ 06939246
......@@ -29,7 +29,7 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
\
/******************************/ \
/* JavaCallWrapper */ \
......@@ -37,22 +37,12 @@
/******************************/ \
/* JavaFrameAnchor */ \
/******************************/ \
volatile_nonstatic_field(JavaFrameAnchor, _flags, int) \
\
volatile_nonstatic_field(JavaFrameAnchor, _flags, int)
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_STRUCTS_OS_CPU macro (and must */
/* be present there) */
#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type)
#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_TYPES_OS_CPU macro (and must */
/* be present there) */
#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant) \
/******************************/ \
/* Register numbers (C2 only) */ \
/******************************/ \
......@@ -90,15 +80,6 @@
declare_c2_constant(R_G6_num) \
declare_c2_constant(R_G7_num)
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_INT_CONSTANTS_OS_CPU macro (and must */
/* be present there) */
#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_LONG_CONSTANTS_OS_CPU macro (and must */
/* be present there) */
#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // CPU_SPARC_VM_VMSTRUCTS_SPARC_HPP
src/cpu/x86/vm/vmStructs_x86.hpp
浏览文件 @ 06939246
......@@ -29,7 +29,7 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
\
/******************************/ \
/* JavaCallWrapper */ \
......@@ -37,31 +37,14 @@
/******************************/ \
/* JavaFrameAnchor */ \
/******************************/ \
volatile_nonstatic_field(JavaFrameAnchor, _last_Java_fp, intptr_t*) \
\
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_STRUCTS_OS_CPU macro (and must */
/* be present there) */
#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_TYPES_OS_CPU macro (and must */
/* be present there) */
volatile_nonstatic_field(JavaFrameAnchor, _last_Java_fp, intptr_t*)
#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_INT_CONSTANTS_OS_CPU macro (and must */
/* be present there) */
#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type)
#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_LONG_CONSTANTS_OS_CPU macro (and must */
/* be present there) */
#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // CPU_X86_VM_VMSTRUCTS_X86_HPP
src/cpu/zero/vm/vmStructs_zero.hpp
浏览文件 @ 06939246
......@@ -30,28 +30,12 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
#define VM_STRUCTS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field)
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_STRUCTS_OS_CPU macro (and must */
/* be present there) */
#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type)
#define VM_TYPES_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_TYPES_OS_CPU macro (and must */
/* be present there) */
#define VM_INT_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_INT_CONSTANTS_OS_CPU macro (and must */
/* be present there) */
#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
/* NOTE that we do not use the last_entry() macro here; it is used */
/* in vmStructs_<os>_<cpu>.hpp's VM_LONG_CONSTANTS_OS_CPU macro (and must */
/* be present there) */
#define VM_LONG_CONSTANTS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // CPU_ZERO_VM_VMSTRUCTS_ZERO_HPP
src/os/windows/vm/decoder_windows.cpp
浏览文件 @ 06939246
......@@ -49,7 +49,7 @@ void WindowsDecoder::initialize() {
pfn_SymSetOptions _pfnSymSetOptions = (pfn_SymSetOptions)::GetProcAddress(handle, "SymSetOptions");
pfn_SymInitialize _pfnSymInitialize = (pfn_SymInitialize)::GetProcAddress(handle, "SymInitialize");
_pfnSymGetSymFromAddr64 = (pfn_SymGetSymFromAddr64)::GetProcAddress(handle, "SymGetSymFromAddr64");
_pfnUndecorateSymbolName = (pfn_UndecorateSymbolName)GetProcAddress(handle, "UnDecorateSymbolName");
_pfnUndecorateSymbolName = (pfn_UndecorateSymbolName)::GetProcAddress(handle, "UnDecorateSymbolName");
if (_pfnSymSetOptions == NULL || _pfnSymInitialize == NULL || _pfnSymGetSymFromAddr64 == NULL) {
_pfnSymGetSymFromAddr64 = NULL;
......@@ -60,8 +60,9 @@ void WindowsDecoder::initialize() {
return;
}
_pfnSymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS);
if (!_pfnSymInitialize(GetCurrentProcess(), NULL, TRUE)) {
HANDLE hProcess = ::GetCurrentProcess();
_pfnSymSetOptions(SYMOPT_UNDNAME | SYMOPT_DEFERRED_LOADS | SYMOPT_EXACT_SYMBOLS);
if (!_pfnSymInitialize(hProcess, NULL, TRUE)) {
_pfnSymGetSymFromAddr64 = NULL;
_pfnUndecorateSymbolName = NULL;
::FreeLibrary(handle);
......@@ -70,6 +71,77 @@ void WindowsDecoder::initialize() {
return;
}
// set pdb search paths
pfn_SymSetSearchPath _pfn_SymSetSearchPath =
(pfn_SymSetSearchPath)::GetProcAddress(handle, "SymSetSearchPath");
pfn_SymGetSearchPath _pfn_SymGetSearchPath =
(pfn_SymGetSearchPath)::GetProcAddress(handle, "SymGetSearchPath");
if (_pfn_SymSetSearchPath != NULL && _pfn_SymGetSearchPath != NULL) {
char paths[MAX_PATH];
int len = sizeof(paths);
if (!_pfn_SymGetSearchPath(hProcess, paths, len)) {
paths[0] = '\0';
} else {
// available spaces in path buffer
len -= (int)strlen(paths);
}
char tmp_path[MAX_PATH];
DWORD dwSize;
HMODULE hJVM = ::GetModuleHandle("jvm.dll");
tmp_path[0] = '\0';
// append the path where jvm.dll is located
if (hJVM != NULL && (dwSize = ::GetModuleFileName(hJVM, tmp_path, sizeof(tmp_path))) > 0) {
while (dwSize > 0 && tmp_path[dwSize] != '\\') {
dwSize --;
}
tmp_path[dwSize] = '\0';
if (dwSize > 0 && len > (int)dwSize + 1) {
strncat(paths, os::path_separator(), 1);
strncat(paths, tmp_path, dwSize);
len -= dwSize + 1;
}
}
// append $JRE/bin. Arguments::get_java_home actually returns $JRE
// path
char *p = Arguments::get_java_home();
assert(p != NULL, "empty java home");
size_t java_home_len = strlen(p);
if (len > (int)java_home_len + 5) {
strncat(paths, os::path_separator(), 1);
strncat(paths, p, java_home_len);
strncat(paths, "\\bin", 4);
len -= (int)(java_home_len + 5);
}
// append $JDK/bin path if it exists
assert(java_home_len < MAX_PATH, "Invalid path length");
// assume $JRE is under $JDK, construct $JDK/bin path and
// see if it exists or not
if (strncmp(&p[java_home_len - 3], "jre", 3) == 0) {
strncpy(tmp_path, p, java_home_len - 3);
tmp_path[java_home_len - 3] = '\0';
strncat(tmp_path, "bin", 3);
// if the directory exists
DWORD dwAttrib = GetFileAttributes(tmp_path);
if (dwAttrib != INVALID_FILE_ATTRIBUTES &&
(dwAttrib & FILE_ATTRIBUTE_DIRECTORY)) {
// tmp_path should have the same length as java_home_len, since we only
// replaced 'jre' with 'bin'
if (len > (int)java_home_len + 1) {
strncat(paths, os::path_separator(), 1);
strncat(paths, tmp_path, java_home_len);
}
}
}
_pfn_SymSetSearchPath(hProcess, paths);
}
// find out if jvm.dll contains private symbols, by decoding
// current function and comparing the result
address addr = (address)Decoder::demangle;
......
src/os/windows/vm/decoder_windows.hpp
浏览文件 @ 06939246
......@@ -35,6 +35,8 @@ typedef DWORD (WINAPI *pfn_SymSetOptions)(DWORD);
typedef BOOL (WINAPI *pfn_SymInitialize)(HANDLE, PCTSTR, BOOL);
typedef BOOL (WINAPI *pfn_SymGetSymFromAddr64)(HANDLE, DWORD64, PDWORD64, PIMAGEHLP_SYMBOL64);
typedef DWORD (WINAPI *pfn_UndecorateSymbolName)(const char*, char*, DWORD, DWORD);
typedef BOOL (WINAPI *pfn_SymSetSearchPath)(HANDLE, PCTSTR);
typedef BOOL (WINAPI *pfn_SymGetSearchPath)(HANDLE, PTSTR, int);
class WindowsDecoder : public AbstractDecoder {
......
src/os_cpu/bsd_x86/vm/vmStructs_bsd_x86.hpp
浏览文件 @ 06939246
......@@ -29,37 +29,26 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
\
/******************************/ \
/* Threads (NOTE: incomplete) */ \
/******************************/ \
nonstatic_field(OSThread, _thread_id, OSThread::thread_id_t) \
nonstatic_field(OSThread, _pthread_id, pthread_t) \
/* This must be the last entry, and must be present */ \
last_entry()
nonstatic_field(OSThread, _pthread_id, pthread_t)
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
\
/**********************/ \
/* Posix Thread IDs */ \
/**********************/ \
\
declare_unsigned_integer_type(OSThread::thread_id_t) \
declare_unsigned_integer_type(pthread_t) \
\
/* This must be the last entry, and must be present */ \
last_entry()
declare_unsigned_integer_type(pthread_t)
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
\
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
\
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // OS_CPU_BSD_X86_VM_VMSTRUCTS_BSD_X86_HPP
src/os_cpu/bsd_zero/vm/vmStructs_bsd_zero.hpp
浏览文件 @ 06939246
......@@ -30,21 +30,13 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field)
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type)
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // OS_CPU_BSD_ZERO_VM_VMSTRUCTS_BSD_ZERO_HPP
src/os_cpu/linux_sparc/vm/vmStructs_linux_sparc.hpp
浏览文件 @ 06939246
......@@ -29,7 +29,7 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
\
/******************************/ \
/* Threads (NOTE: incomplete) */ \
......@@ -37,38 +37,27 @@
\
nonstatic_field(JavaThread, _base_of_stack_pointer, intptr_t*) \
nonstatic_field(OSThread, _thread_id, OSThread::thread_id_t) \
nonstatic_field(OSThread, _pthread_id, pthread_t) \
/* This must be the last entry, and must be present */ \
last_entry()
nonstatic_field(OSThread, _pthread_id, pthread_t)
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
\
/**********************/ \
/* POSIX Thread IDs */ \
/**********************/ \
\
declare_integer_type(OSThread::thread_id_t) \
declare_unsigned_integer_type(pthread_t) \
\
/* This must be the last entry, and must be present */ \
last_entry()
declare_unsigned_integer_type(pthread_t)
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant) \
\
/************************/ \
/* JavaThread constants */ \
/************************/ \
\
declare_constant(JavaFrameAnchor::flushed) \
\
/* This must be the last entry, and must be present */ \
last_entry()
declare_constant(JavaFrameAnchor::flushed)
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
\
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // OS_CPU_LINUX_SPARC_VM_VMSTRUCTS_LINUX_SPARC_HPP
src/os_cpu/linux_x86/vm/vmStructs_linux_x86.hpp
浏览文件 @ 06939246
......@@ -29,37 +29,26 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
\
/******************************/ \
/* Threads (NOTE: incomplete) */ \
/******************************/ \
nonstatic_field(OSThread, _thread_id, OSThread::thread_id_t) \
nonstatic_field(OSThread, _pthread_id, pthread_t) \
/* This must be the last entry, and must be present */ \
last_entry()
nonstatic_field(OSThread, _pthread_id, pthread_t)
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
\
/**********************/ \
/* Posix Thread IDs */ \
/**********************/ \
\
declare_integer_type(OSThread::thread_id_t) \
declare_unsigned_integer_type(pthread_t) \
\
/* This must be the last entry, and must be present */ \
last_entry()
declare_unsigned_integer_type(pthread_t)
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
\
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
\
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // OS_CPU_LINUX_X86_VM_VMSTRUCTS_LINUX_X86_HPP
src/os_cpu/linux_zero/vm/vmStructs_linux_zero.hpp
浏览文件 @ 06939246
......@@ -30,21 +30,12 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field)
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type)
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // OS_CPU_LINUX_ZERO_VM_VMSTRUCTS_LINUX_ZERO_HPP
src/os_cpu/solaris_sparc/vm/vmStructs_solaris_sparc.hpp
浏览文件 @ 06939246
......@@ -29,44 +29,32 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
\
/******************************/ \
/* Threads (NOTE: incomplete) */ \
/******************************/ \
\
nonstatic_field(JavaThread, _base_of_stack_pointer, intptr_t*) \
nonstatic_field(OSThread, _thread_id, OSThread::thread_id_t) \
/* This must be the last entry, and must be present */ \
last_entry()
nonstatic_field(OSThread, _thread_id, OSThread::thread_id_t)
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
\
/**********************/ \
/* Solaris Thread IDs */ \
/**********************/ \
\
declare_unsigned_integer_type(OSThread::thread_id_t) \
\
/* This must be the last entry, and must be present */ \
last_entry()
declare_unsigned_integer_type(OSThread::thread_id_t)
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant) \
\
/************************/ \
/* JavaThread constants */ \
/************************/ \
\
declare_constant(JavaFrameAnchor::flushed) \
\
/* This must be the last entry, and must be present */ \
last_entry()
declare_constant(JavaFrameAnchor::flushed)
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
\
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // OS_CPU_SOLARIS_SPARC_VM_VMSTRUCTS_SOLARIS_SPARC_HPP
src/os_cpu/solaris_x86/vm/vmStructs_solaris_x86.hpp
浏览文件 @ 06939246
......@@ -29,36 +29,24 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
\
/******************************/ \
/* Threads (NOTE: incomplete) */ \
/******************************/ \
\
nonstatic_field(OSThread, _thread_id, OSThread::thread_id_t) \
\
/* This must be the last entry, and must be present */ \
last_entry()
nonstatic_field(OSThread, _thread_id, OSThread::thread_id_t)
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
\
/**********************/ \
/* Solaris Thread IDs */ \
/**********************/ \
\
declare_unsigned_integer_type(OSThread::thread_id_t) \
\
/* This must be the last entry, and must be present */ \
last_entry()
declare_unsigned_integer_type(OSThread::thread_id_t)
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
\
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
\
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // OS_CPU_SOLARIS_X86_VM_VMSTRUCTS_SOLARIS_X86_HPP
src/os_cpu/windows_x86/vm/vmStructs_windows_x86.hpp
浏览文件 @ 06939246
......@@ -29,32 +29,21 @@
// constants required by the Serviceability Agent. This file is
// referenced by vmStructs.cpp.
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field, last_entry) \
#define VM_STRUCTS_OS_CPU(nonstatic_field, static_field, unchecked_nonstatic_field, volatile_nonstatic_field, nonproduct_nonstatic_field, c2_nonstatic_field, unchecked_c1_static_field, unchecked_c2_static_field) \
\
/******************************/ \
/* Threads (NOTE: incomplete) */ \
/******************************/ \
\
nonstatic_field(OSThread, _thread_id, OSThread::thread_id_t) \
unchecked_nonstatic_field(OSThread, _thread_handle, sizeof(HANDLE)) /* NOTE: no type */ \
\
/* This must be the last entry, and must be present */ \
last_entry()
unchecked_nonstatic_field(OSThread, _thread_handle, sizeof(HANDLE)) /* NOTE: no type */
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type, last_entry) \
#define VM_TYPES_OS_CPU(declare_type, declare_toplevel_type, declare_oop_type, declare_integer_type, declare_unsigned_integer_type, declare_c1_toplevel_type, declare_c2_type, declare_c2_toplevel_type) \
\
declare_unsigned_integer_type(OSThread::thread_id_t) \
/* This must be the last entry, and must be present */ \
last_entry()
declare_unsigned_integer_type(OSThread::thread_id_t)
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
\
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_INT_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant, last_entry) \
\
/* This must be the last entry, and must be present */ \
last_entry()
#define VM_LONG_CONSTANTS_OS_CPU(declare_constant, declare_preprocessor_constant, declare_c1_constant, declare_c2_constant, declare_c2_preprocessor_constant)
#endif // OS_CPU_WINDOWS_X86_VM_VMSTRUCTS_WINDOWS_X86_HPP
src/share/vm/classfile/classFileParser.cpp
浏览文件 @ 06939246
/*
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -3912,7 +3912,10 @@ instanceKlassHandle ClassFileParser::parseClassFile(Symbol* name,
// check that if this class is an interface then it doesn't have static methods
if (this_klass->is_interface()) {
check_illegal_static_method(this_klass, CHECK_(nullHandle));
/* An interface in a JAVA 8 classfile can be static */
if (_major_version < JAVA_8_VERSION) {
check_illegal_static_method(this_klass, CHECK_(nullHandle));
}
}
......@@ -4466,6 +4469,7 @@ void ClassFileParser::verify_legal_method_modifiers(
const bool is_bridge = (flags & JVM_ACC_BRIDGE) != 0;
const bool is_strict = (flags & JVM_ACC_STRICT) != 0;
const bool is_synchronized = (flags & JVM_ACC_SYNCHRONIZED) != 0;
const bool is_protected = (flags & JVM_ACC_PROTECTED) != 0;
const bool major_gte_15 = _major_version >= JAVA_1_5_VERSION;
const bool major_gte_8 = _major_version >= JAVA_8_VERSION;
const bool is_initializer = (name == vmSymbols::object_initializer_name());
......@@ -4473,11 +4477,33 @@ void ClassFileParser::verify_legal_method_modifiers(
bool is_illegal = false;
if (is_interface) {
if (!is_public || is_static || is_final || is_native ||
((is_synchronized || is_strict) && major_gte_15 &&
(!major_gte_8 || is_abstract)) ||
(!major_gte_8 && !is_abstract)) {
is_illegal = true;
if (major_gte_8) {
// Class file version is JAVA_8_VERSION or later Methods of
// interfaces may set any of the flags except ACC_PROTECTED,
// ACC_FINAL, ACC_NATIVE, and ACC_SYNCHRONIZED; they must
// have exactly one of the ACC_PUBLIC or ACC_PRIVATE flags set.
if ((is_public == is_private) || /* Only one of private and public should be true - XNOR */
(is_native || is_protected || is_final || is_synchronized) ||
// If a specific method of a class or interface has its
// ACC_ABSTRACT flag set, it must not have any of its
// ACC_FINAL, ACC_NATIVE, ACC_PRIVATE, ACC_STATIC,
// ACC_STRICT, or ACC_SYNCHRONIZED flags set. No need to
// check for ACC_FINAL, ACC_NATIVE or ACC_SYNCHRONIZED as
// those flags are illegal irrespective of ACC_ABSTRACT being set or not.
(is_abstract && (is_private || is_static || is_strict))) {
is_illegal = true;
}
} else if (major_gte_15) {
// Class file version in the interval [JAVA_1_5_VERSION, JAVA_8_VERSION)
if (!is_public || is_static || is_final || is_synchronized ||
is_native || !is_abstract || is_strict) {
is_illegal = true;
}
} else {
// Class file version is pre-JAVA_1_5_VERSION
if (!is_public || is_static || is_final || is_native || !is_abstract) {
is_illegal = true;
}
}
} else { // not interface
if (is_initializer) {
......
src/share/vm/classfile/placeholders.cpp
浏览文件 @ 06939246
/*
* Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -142,7 +142,7 @@ PlaceholderEntry* PlaceholderTable::find_and_add(int index, unsigned int hash,
}
// placeholder used to track class loading internal states
// placeholder is used to track class loading internal states
// placeholder existence now for loading superclass/superinterface
// superthreadQ tracks class circularity, while loading superclass/superinterface
// loadInstanceThreadQ tracks load_instance_class calls
......@@ -153,15 +153,17 @@ PlaceholderEntry* PlaceholderTable::find_and_add(int index, unsigned int hash,
// All claimants remove SeenThread after completing action
// On removal: if definer and all queues empty, remove entry
// Note: you can be in both placeholders and systemDictionary
// see parse_stream for redefine classes
// Therefore - must always check SD first
// Ignores the case where entry is not found
void PlaceholderTable::find_and_remove(int index, unsigned int hash,
Symbol* name, ClassLoaderData* loader_data, Thread* thread) {
Symbol* name, ClassLoaderData* loader_data,
classloadAction action,
Thread* thread) {
assert_locked_or_safepoint(SystemDictionary_lock);
PlaceholderEntry *probe = get_entry(index, hash, name, loader_data);
if (probe != NULL) {
// No other threads using this entry
probe->remove_seen_thread(thread, action);
// If no other threads using this entry, and this thread is not using this entry for other states
if ((probe->superThreadQ() == NULL) && (probe->loadInstanceThreadQ() == NULL)
&& (probe->defineThreadQ() == NULL) && (probe->definer() == NULL)) {
remove_entry(index, hash, name, loader_data);
......
src/share/vm/classfile/placeholders.hpp
浏览文件 @ 06939246
/*
* Copyright (c) 2003, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 2003, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -82,7 +82,7 @@ public:
};
// find_and_add returns probe pointer - old or new
// If no entry exists, add a placeholder entry and push SeenThread
// If no entry exists, add a placeholder entry and push SeenThread for classloadAction
// If entry exists, reuse entry and push SeenThread for classloadAction
PlaceholderEntry* find_and_add(int index, unsigned int hash,
Symbol* name, ClassLoaderData* loader_data,
......@@ -92,9 +92,11 @@ public:
void remove_entry(int index, unsigned int hash,
Symbol* name, ClassLoaderData* loader_data);
// Remove placeholder information
// find_and_remove first removes SeenThread for classloadAction
// If all queues are empty and definer is null, remove the PlacheholderEntry completely
void find_and_remove(int index, unsigned int hash,
Symbol* name, ClassLoaderData* loader_data, Thread* thread);
Symbol* name, ClassLoaderData* loader_data,
classloadAction action, Thread* thread);
// GC support.
void classes_do(KlassClosure* f);
......
src/share/vm/classfile/systemDictionary.cpp
浏览文件 @ 06939246
/*
* Copyright (c) 1997, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1997, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -172,7 +172,7 @@ Klass* SystemDictionary::handle_resolution_exception(Symbol* class_name, Handle
assert(klass_h() == NULL, "Should not have result with exception pending");
Handle e(THREAD, PENDING_EXCEPTION);
CLEAR_PENDING_EXCEPTION;
THROW_MSG_CAUSE_0(vmSymbols::java_lang_NoClassDefFoundError(), class_name->as_C_string(), e);
THROW_MSG_CAUSE_NULL(vmSymbols::java_lang_NoClassDefFoundError(), class_name->as_C_string(), e);
} else {
return NULL;
}
......@@ -181,9 +181,9 @@ Klass* SystemDictionary::handle_resolution_exception(Symbol* class_name, Handle
if (klass_h() == NULL) {
ResourceMark rm(THREAD);
if (throw_error) {
THROW_MSG_0(vmSymbols::java_lang_NoClassDefFoundError(), class_name->as_C_string());
THROW_MSG_NULL(vmSymbols::java_lang_NoClassDefFoundError(), class_name->as_C_string());
} else {
THROW_MSG_0(vmSymbols::java_lang_ClassNotFoundException(), class_name->as_C_string());
THROW_MSG_NULL(vmSymbols::java_lang_ClassNotFoundException(), class_name->as_C_string());
}
}
return (Klass*)klass_h();
......@@ -343,29 +343,29 @@ Klass* SystemDictionary::resolve_super_or_fail(Symbol* child_name,
}
if (throw_circularity_error) {
ResourceMark rm(THREAD);
THROW_MSG_0(vmSymbols::java_lang_ClassCircularityError(), child_name->as_C_string());
THROW_MSG_NULL(vmSymbols::java_lang_ClassCircularityError(), child_name->as_C_string());
}
// java.lang.Object should have been found above
assert(class_name != NULL, "null super class for resolving");
// Resolve the super class or interface, check results on return
Klass* superk = NULL;
superk = SystemDictionary::resolve_or_null(class_name,
Klass* superk = SystemDictionary::resolve_or_null(class_name,
class_loader,
protection_domain,
THREAD);
KlassHandle superk_h(THREAD, superk);
// Note: clean up of placeholders currently in callers of
// resolve_super_or_fail - either at update_dictionary time
// or on error
// Clean up of placeholders moved so that each classloadAction registrar self-cleans up
// It is no longer necessary to keep the placeholder table alive until update_dictionary
// or error. GC used to walk the placeholder table as strong roots.
// The instanceKlass is kept alive because the class loader is on the stack,
// which keeps the loader_data alive, as well as all instanceKlasses in
// the loader_data. parseClassFile adds the instanceKlass to loader_data.
{
MutexLocker mu(SystemDictionary_lock, THREAD);
PlaceholderEntry* probe = placeholders()->get_entry(p_index, p_hash, child_name, loader_data);
if (probe != NULL) {
probe->remove_seen_thread(THREAD, PlaceholderTable::LOAD_SUPER);
}
MutexLocker mu(SystemDictionary_lock, THREAD);
placeholders()->find_and_remove(p_index, p_hash, child_name, loader_data, PlaceholderTable::LOAD_SUPER, THREAD);
SystemDictionary_lock->notify_all();
}
if (HAS_PENDING_EXCEPTION || superk_h() == NULL) {
// can null superk
......@@ -430,8 +430,8 @@ void SystemDictionary::validate_protection_domain(instanceKlassHandle klass,
// We're using a No_Safepoint_Verifier to catch any place where we
// might potentially do a GC at all.
// SystemDictionary::do_unloading() asserts that classes are only
// unloaded at a safepoint.
// Dictionary::do_unloading() asserts that classes in SD are only
// unloaded at a safepoint. Anonymous classes are not in SD.
No_Safepoint_Verifier nosafepoint;
dictionary()->add_protection_domain(d_index, d_hash, klass, loader_data,
protection_domain, THREAD);
......@@ -486,7 +486,6 @@ void SystemDictionary::double_lock_wait(Handle lockObject, TRAPS) {
// super class loading here.
// This also is critical in cases where the original thread gets stalled
// even in non-circularity situations.
// Note: only one thread can define the class, but multiple can resolve
// Note: must call resolve_super_or_fail even if null super -
// to force placeholder entry creation for this class for circularity detection
// Caller must check for pending exception
......@@ -518,14 +517,6 @@ instanceKlassHandle SystemDictionary::handle_parallel_super_load(
protection_domain,
true,
CHECK_(nh));
// We don't redefine the class, so we just need to clean up if there
// was not an error (don't want to modify any system dictionary
// data structures).
{
MutexLocker mu(SystemDictionary_lock, THREAD);
placeholders()->find_and_remove(p_index, p_hash, name, loader_data, THREAD);
SystemDictionary_lock->notify_all();
}
// parallelCapable class loaders do NOT wait for parallel superclass loads to complete
// Serial class loaders and bootstrap classloader do wait for superclass loads
......@@ -595,6 +586,10 @@ Klass* SystemDictionary::resolve_instance_class_or_null(Symbol* name, Handle cla
// Do lookup to see if class already exist and the protection domain
// has the right access
// This call uses find which checks protection domain already matches
// All subsequent calls use find_class, and set has_loaded_class so that
// before we return a result we call out to java to check for valid protection domain
// to allow returning the Klass* and add it to the pd_set if it is valid
unsigned int d_hash = dictionary()->compute_hash(name, loader_data);
int d_index = dictionary()->hash_to_index(d_hash);
Klass* probe = dictionary()->find(d_index, d_hash, name, loader_data,
......@@ -652,7 +647,7 @@ Klass* SystemDictionary::resolve_instance_class_or_null(Symbol* name, Handle cla
}
}
// If the class in is in the placeholder table, class loading is in progress
// If the class is in the placeholder table, class loading is in progress
if (super_load_in_progress && havesupername==true) {
k = SystemDictionary::handle_parallel_super_load(name, superclassname,
class_loader, protection_domain, lockObject, THREAD);
......@@ -664,7 +659,9 @@ Klass* SystemDictionary::resolve_instance_class_or_null(Symbol* name, Handle cla
}
}
bool throw_circularity_error = false;
if (!class_has_been_loaded) {
bool load_instance_added = false;
// add placeholder entry to record loading instance class
// Five cases:
......@@ -690,7 +687,7 @@ Klass* SystemDictionary::resolve_instance_class_or_null(Symbol* name, Handle cla
// No performance benefit and no deadlock issues.
// case 5. parallelCapable user level classloaders - without objectLocker
// Allow parallel classloading of a class/classloader pair
bool throw_circularity_error = false;
{
MutexLocker mu(SystemDictionary_lock, THREAD);
if (class_loader.is_null() || !is_parallelCapable(class_loader)) {
......@@ -726,12 +723,13 @@ Klass* SystemDictionary::resolve_instance_class_or_null(Symbol* name, Handle cla
}
}
}
// All cases: add LOAD_INSTANCE
// All cases: add LOAD_INSTANCE holding SystemDictionary_lock
// case 3: UnsyncloadClass || case 5: parallelCapable: allow competing threads to try
// LOAD_INSTANCE in parallel
// add placeholder entry even if error - callers will remove on error
if (!throw_circularity_error && !class_has_been_loaded) {
PlaceholderEntry* newprobe = placeholders()->find_and_add(p_index, p_hash, name, loader_data, PlaceholderTable::LOAD_INSTANCE, NULL, THREAD);
load_instance_added = true;
// For class loaders that do not acquire the classloader object lock,
// if they did not catch another thread holding LOAD_INSTANCE,
// need a check analogous to the acquire ObjectLocker/find_class
......@@ -740,19 +738,18 @@ Klass* SystemDictionary::resolve_instance_class_or_null(Symbol* name, Handle cla
// class loaders holding the ObjectLock shouldn't find the class here
Klass* check = find_class(d_index, d_hash, name, loader_data);
if (check != NULL) {
// Klass is already loaded, so just return it
// Klass is already loaded, so return it after checking/adding protection domain
k = instanceKlassHandle(THREAD, check);
class_has_been_loaded = true;
newprobe->remove_seen_thread(THREAD, PlaceholderTable::LOAD_INSTANCE);
placeholders()->find_and_remove(p_index, p_hash, name, loader_data, THREAD);
SystemDictionary_lock->notify_all();
}
}
}
// must throw error outside of owning lock
if (throw_circularity_error) {
assert(!HAS_PENDING_EXCEPTION && load_instance_added == false,"circularity error cleanup");
ResourceMark rm(THREAD);
THROW_MSG_0(vmSymbols::java_lang_ClassCircularityError(), name->as_C_string());
THROW_MSG_NULL(vmSymbols::java_lang_ClassCircularityError(), name->as_C_string());
}
if (!class_has_been_loaded) {
......@@ -782,20 +779,6 @@ Klass* SystemDictionary::resolve_instance_class_or_null(Symbol* name, Handle cla
}
}
// clean up placeholder entries for success or error
// This cleans up LOAD_INSTANCE entries
// It also cleans up LOAD_SUPER entries on errors from
// calling load_instance_class
{
MutexLocker mu(SystemDictionary_lock, THREAD);
PlaceholderEntry* probe = placeholders()->get_entry(p_index, p_hash, name, loader_data);
if (probe != NULL) {
probe->remove_seen_thread(THREAD, PlaceholderTable::LOAD_INSTANCE);
placeholders()->find_and_remove(p_index, p_hash, name, loader_data, THREAD);
SystemDictionary_lock->notify_all();
}
}
// If everything was OK (no exceptions, no null return value), and
// class_loader is NOT the defining loader, do a little more bookkeeping.
if (!HAS_PENDING_EXCEPTION && !k.is_null() &&
......@@ -819,18 +802,22 @@ Klass* SystemDictionary::resolve_instance_class_or_null(Symbol* name, Handle cla
}
}
}
if (HAS_PENDING_EXCEPTION || k.is_null()) {
// On error, clean up placeholders
{
MutexLocker mu(SystemDictionary_lock, THREAD);
placeholders()->find_and_remove(p_index, p_hash, name, loader_data, THREAD);
SystemDictionary_lock->notify_all();
}
return NULL;
}
} // load_instance_class loop
if (load_instance_added == true) {
// clean up placeholder entries for LOAD_INSTANCE success or error
// This brackets the SystemDictionary updates for both defining
// and initiating loaders
MutexLocker mu(SystemDictionary_lock, THREAD);
placeholders()->find_and_remove(p_index, p_hash, name, loader_data, PlaceholderTable::LOAD_INSTANCE, THREAD);
SystemDictionary_lock->notify_all();
}
}
if (HAS_PENDING_EXCEPTION || k.is_null()) {
return NULL;
}
#ifdef ASSERT
{
ClassLoaderData* loader_data = k->class_loader_data();
......@@ -850,8 +837,8 @@ Klass* SystemDictionary::resolve_instance_class_or_null(Symbol* name, Handle cla
// so we cannot allow GC to occur while we're holding this entry.
// We're using a No_Safepoint_Verifier to catch any place where we
// might potentially do a GC at all.
// SystemDictionary::do_unloading() asserts that classes are only
// unloaded at a safepoint.
// Dictionary::do_unloading() asserts that classes in SD are only
// unloaded at a safepoint. Anonymous classes are not in SD.
No_Safepoint_Verifier nosafepoint;
if (dictionary()->is_valid_protection_domain(d_index, d_hash, name,
loader_data,
......@@ -898,8 +885,8 @@ Klass* SystemDictionary::find(Symbol* class_name,
// so we cannot allow GC to occur while we're holding this entry.
// We're using a No_Safepoint_Verifier to catch any place where we
// might potentially do a GC at all.
// SystemDictionary::do_unloading() asserts that classes are only
// unloaded at a safepoint.
// Dictionary::do_unloading() asserts that classes in SD are only
// unloaded at a safepoint. Anonymous classes are not in SD.
No_Safepoint_Verifier nosafepoint;
return dictionary()->find(d_index, d_hash, class_name, loader_data,
protection_domain, THREAD);
......@@ -965,10 +952,6 @@ Klass* SystemDictionary::parse_stream(Symbol* class_name,
// throw potential ClassFormatErrors.
//
// Note: "name" is updated.
// Further note: a placeholder will be added for this class when
// super classes are loaded (resolve_super_or_fail). We expect this
// to be called for all classes but java.lang.Object; and we preload
// java.lang.Object through resolve_or_fail, not this path.
instanceKlassHandle k = ClassFileParser(st).parseClassFile(class_name,
loader_data,
......@@ -979,21 +962,6 @@ Klass* SystemDictionary::parse_stream(Symbol* class_name,
true,
THREAD);
// We don't redefine the class, so we just need to clean up whether there
// was an error or not (don't want to modify any system dictionary
// data structures).
// Parsed name could be null if we threw an error before we got far
// enough along to parse it -- in that case, there is nothing to clean up.
if (parsed_name != NULL) {
unsigned int p_hash = placeholders()->compute_hash(parsed_name,
loader_data);
int p_index = placeholders()->hash_to_index(p_hash);
{
MutexLocker mu(SystemDictionary_lock, THREAD);
placeholders()->find_and_remove(p_index, p_hash, parsed_name, loader_data, THREAD);
SystemDictionary_lock->notify_all();
}
}
if (host_klass.not_null() && k.not_null()) {
assert(EnableInvokeDynamic, "");
......@@ -1062,10 +1030,6 @@ Klass* SystemDictionary::resolve_from_stream(Symbol* class_name,
// throw potential ClassFormatErrors.
//
// Note: "name" is updated.
// Further note: a placeholder will be added for this class when
// super classes are loaded (resolve_super_or_fail). We expect this
// to be called for all classes but java.lang.Object; and we preload
// java.lang.Object through resolve_or_fail, not this path.
instanceKlassHandle k = ClassFileParser(st).parseClassFile(class_name,
loader_data,
......@@ -1114,25 +1078,7 @@ Klass* SystemDictionary::resolve_from_stream(Symbol* class_name,
}
}
// If parsing the class file or define_instance_class failed, we
// need to remove the placeholder added on our behalf. But we
// must make sure parsed_name is valid first (it won't be if we had
// a format error before the class was parsed far enough to
// find the name).
if (HAS_PENDING_EXCEPTION && parsed_name != NULL) {
unsigned int p_hash = placeholders()->compute_hash(parsed_name,
loader_data);
int p_index = placeholders()->hash_to_index(p_hash);
{
MutexLocker mu(SystemDictionary_lock, THREAD);
placeholders()->find_and_remove(p_index, p_hash, parsed_name, loader_data, THREAD);
SystemDictionary_lock->notify_all();
}
return NULL;
}
// Make sure that we didn't leave a place holder in the
// SystemDictionary; this is only done on success
// Make sure we have an entry in the SystemDictionary on success
debug_only( {
if (!HAS_PENDING_EXCEPTION) {
assert(parsed_name != NULL, "parsed_name is still null?");
......@@ -1547,8 +1493,7 @@ instanceKlassHandle SystemDictionary::find_or_define_instance_class(Symbol* clas
// Other cases fall through, and may run into duplicate defines
// caught by finding an entry in the SystemDictionary
if ((UnsyncloadClass || is_parallelDefine(class_loader)) && (probe->instance_klass() != NULL)) {
probe->remove_seen_thread(THREAD, PlaceholderTable::DEFINE_CLASS);
placeholders()->find_and_remove(p_index, p_hash, name_h, loader_data, THREAD);
placeholders()->find_and_remove(p_index, p_hash, name_h, loader_data, PlaceholderTable::DEFINE_CLASS, THREAD);
SystemDictionary_lock->notify_all();
#ifdef ASSERT
Klass* check = find_class(d_index, d_hash, name_h, loader_data);
......@@ -1578,8 +1523,7 @@ instanceKlassHandle SystemDictionary::find_or_define_instance_class(Symbol* clas
probe->set_instance_klass(k());
}
probe->set_definer(NULL);
probe->remove_seen_thread(THREAD, PlaceholderTable::DEFINE_CLASS);
placeholders()->find_and_remove(p_index, p_hash, name_h, loader_data, THREAD);
placeholders()->find_and_remove(p_index, p_hash, name_h, loader_data, PlaceholderTable::DEFINE_CLASS, THREAD);
SystemDictionary_lock->notify_all();
}
}
......@@ -1736,6 +1680,8 @@ int SystemDictionary::calculate_systemdictionary_size(int classcount) {
}
return newsize;
}
// Assumes classes in the SystemDictionary are only unloaded at a safepoint
// Note: anonymous classes are not in the SD.
bool SystemDictionary::do_unloading(BoolObjectClosure* is_alive) {
// First, mark for unload all ClassLoaderData referencing a dead class loader.
bool has_dead_loaders = ClassLoaderDataGraph::do_unloading(is_alive);
......@@ -2105,9 +2051,7 @@ void SystemDictionary::update_dictionary(int d_index, unsigned int d_hash,
// All loaded classes get a unique ID.
TRACE_INIT_ID(k);
// Check for a placeholder. If there, remove it and make a
// new system dictionary entry.
placeholders()->find_and_remove(p_index, p_hash, name, loader_data, THREAD);
// Make a new system dictionary entry.
Klass* sd_check = find_class(d_index, d_hash, name, loader_data);
if (sd_check == NULL) {
dictionary()->add_klass(name, loader_data, k);
......@@ -2116,12 +2060,8 @@ void SystemDictionary::update_dictionary(int d_index, unsigned int d_hash,
#ifdef ASSERT
sd_check = find_class(d_index, d_hash, name, loader_data);
assert (sd_check != NULL, "should have entry in system dictionary");
// Changed to allow PH to remain to complete class circularity checking
// while only one thread can define a class at one time, multiple
// classes can resolve the superclass for a class at one time,
// and the placeholder is used to track that
// Symbol* ph_check = find_placeholder(name, class_loader);
// assert (ph_check == NULL, "should not have a placeholder entry");
// Note: there may be a placeholder entry: for circularity testing
// or for parallel defines
#endif
SystemDictionary_lock->notify_all();
}
......
src/share/vm/runtime/vmStructs.cpp
浏览文件 @ 06939246
此差异已折叠。
src/share/vm/utilities/exceptions.hpp
浏览文件 @ 06939246
/*
* Copyright (c) 1998, 2012, Oracle and/or its affiliates. All rights reserved.
* Copyright (c) 1998, 2013, Oracle and/or its affiliates. All rights reserved.
* DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
*
* This code is free software; you can redistribute it and/or modify it
......@@ -267,6 +267,7 @@ class Exceptions {
#define THROW_WRAPPED_0(name, oop_to_wrap) THROW_WRAPPED_(name, oop_to_wrap, 0)
#define THROW_ARG_0(name, signature, arg) THROW_ARG_(name, signature, arg, 0)
#define THROW_MSG_CAUSE_0(name, message, cause) THROW_MSG_CAUSE_(name, message, cause, 0)
#define THROW_MSG_CAUSE_NULL(name, message, cause) THROW_MSG_CAUSE_(name, message, cause, NULL)
#define THROW_NULL(name) THROW_(name, NULL)
#define THROW_MSG_NULL(name, message) THROW_MSG_(name, message, NULL)
......
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