--- a/hotspot/agent/src/os/bsd/MacosxDebuggerLocal.m Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/os/bsd/MacosxDebuggerLocal.m Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2002, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 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
@@ -40,12 +40,34 @@
#import <errno.h>
#import <sys/types.h>
#import <sys/ptrace.h>
+#include "libproc_impl.h"
-jboolean debug = JNI_FALSE;
+#define UNSUPPORTED_ARCH "Unsupported architecture!"
+
+#if defined(x86_64) && !defined(amd64)
+#define amd64 1
+#endif
+
+#if amd64
+#include "sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext.h"
+#else
+#error UNSUPPORTED_ARCH
+#endif
static jfieldID symbolicatorID = 0; // set in _init0
static jfieldID taskID = 0; // set in _init0
+static jfieldID p_ps_prochandle_ID = 0;
+static jfieldID loadObjectList_ID = 0;
+static jmethodID listAdd_ID = 0;
+
+static jmethodID createClosestSymbol_ID = 0;
+static jmethodID createLoadObject_ID = 0;
+static jmethodID getJavaThreadsInfo_ID = 0;
+
+// indicator if thread id (lwpid_t) was set
+static bool _threads_filled = false;
+
static void putSymbolicator(JNIEnv *env, jobject this_obj, id symbolicator) {
(*env)->SetLongField(env, this_obj, symbolicatorID, (jlong)(intptr_t)symbolicator);
}
@@ -76,6 +98,11 @@
(*env)->ThrowNew(env, (*env)->FindClass(env, "sun/jvm/hotspot/debugger/DebuggerException"), errMsg);
}
+static struct ps_prochandle* get_proc_handle(JNIEnv* env, jobject this_obj) {
+ jlong ptr = (*env)->GetLongField(env, this_obj, p_ps_prochandle_ID);
+ return (struct ps_prochandle*)(intptr_t)ptr;
+}
+
#if defined(__i386__)
#define hsdb_thread_state_t x86_thread_state32_t
#define hsdb_float_state_t x86_float_state32_t
@@ -91,7 +118,7 @@
#define HSDB_THREAD_STATE_COUNT x86_THREAD_STATE64_COUNT
#define HSDB_FLOAT_STATE_COUNT x86_FLOAT_STATE64_COUNT
#else
- #error "Unsupported architecture"
+ #error UNSUPPORTED_ARCH
#endif
/*
@@ -104,6 +131,66 @@
symbolicatorID = (*env)->GetFieldID(env, cls, "symbolicator", "J");
taskID = (*env)->GetFieldID(env, cls, "task", "J");
CHECK_EXCEPTION;
+
+ // for core file
+ p_ps_prochandle_ID = (*env)->GetFieldID(env, cls, "p_ps_prochandle", "J");
+ CHECK_EXCEPTION;
+ loadObjectList_ID = (*env)->GetFieldID(env, cls, "loadObjectList", "Ljava/util/List;");
+ CHECK_EXCEPTION;
+
+ // methods we use
+ createClosestSymbol_ID = (*env)->GetMethodID(env, cls, "createClosestSymbol",
+ "(Ljava/lang/String;J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;");
+ CHECK_EXCEPTION;
+ createLoadObject_ID = (*env)->GetMethodID(env, cls, "createLoadObject",
+ "(Ljava/lang/String;JJ)Lsun/jvm/hotspot/debugger/cdbg/LoadObject;");
+ CHECK_EXCEPTION;
+
+ // java.util.List method we call
+ jclass listClass = (*env)->FindClass(env, "java/util/List");
+ CHECK_EXCEPTION;
+ listAdd_ID = (*env)->GetMethodID(env, listClass, "add", "(Ljava/lang/Object;)Z");
+ CHECK_EXCEPTION;
+ getJavaThreadsInfo_ID = (*env)->GetMethodID(env, cls, "getJavaThreadsInfo",
+ "()[J");
+ CHECK_EXCEPTION;
+
+ init_libproc(getenv("LIBSAPROC_DEBUG") != NULL);
+}
+
+JNIEXPORT jint JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_getAddressSize
+ (JNIEnv *env, jclass cls)
+{
+#ifdef _LP64
+ return 8;
+#else
+ #error UNSUPPORTED_ARCH
+#endif
+}
+
+/** called by Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_lookupByName0 */
+jlong lookupByNameIncore(
+ JNIEnv *env, struct ps_prochandle *ph, jobject this_obj, jstring objectName, jstring symbolName)
+{
+ const char *objectName_cstr, *symbolName_cstr;
+ jlong addr;
+ jboolean isCopy;
+ objectName_cstr = NULL;
+ if (objectName != NULL) {
+ objectName_cstr = (*env)->GetStringUTFChars(env, objectName, &isCopy);
+ CHECK_EXCEPTION_(0);
+ }
+ symbolName_cstr = (*env)->GetStringUTFChars(env, symbolName, &isCopy);
+ CHECK_EXCEPTION_(0);
+
+ print_debug("look for %s \n", symbolName_cstr);
+ addr = (jlong) lookup_symbol(ph, objectName_cstr, symbolName_cstr);
+
+ if (objectName_cstr != NULL) {
+ (*env)->ReleaseStringUTFChars(env, objectName, objectName_cstr);
+ }
+ (*env)->ReleaseStringUTFChars(env, symbolName, symbolName_cstr);
+ return addr;
}
/*
@@ -116,14 +203,17 @@
JNIEnv *env, jobject this_obj,
jstring objectName, jstring symbolName)
{
+ struct ps_prochandle* ph = get_proc_handle(env, this_obj);
+ if (ph->core != NULL) {
+ return lookupByNameIncore(env, ph, this_obj, objectName, symbolName);
+ }
+
jlong address = 0;
JNF_COCOA_ENTER(env);
NSString *symbolNameString = JNFJavaToNSString(env, symbolName);
- if (debug) {
- printf("lookupInProcess called for %s\n", [symbolNameString UTF8String]);
- }
+ print_debug("lookupInProcess called for %s\n", [symbolNameString UTF8String]);
id symbolicator = getSymbolicator(env, this_obj);
if (symbolicator != nil) {
@@ -131,9 +221,7 @@
address = (jlong) dynamicCall(symbolicator, @selector(addressForSymbol:), symbolNameString);
}
- if (debug) {
- printf("address of symbol %s = %llx\n", [symbolNameString UTF8String], address);
- }
+ print_debug("address of symbol %s = %llx\n", [symbolNameString UTF8String], address);
JNF_COCOA_EXIT(env);
return address;
@@ -141,6 +229,42 @@
/*
* Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
+ * Method: lookupByAddress0
+ * Signature: (J)Lsun/jvm/hotspot/debugger/cdbg/ClosestSymbol;
+ */
+JNIEXPORT jobject JNICALL Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_lookupByAddress0
+ (JNIEnv *env, jobject this_obj, jlong addr) {
+ uintptr_t offset;
+ const char* sym = NULL;
+
+ struct ps_prochandle* ph = get_proc_handle(env, this_obj);
+ sym = symbol_for_pc(ph, (uintptr_t) addr, &offset);
+ if (sym == NULL) return 0;
+ return (*env)->CallObjectMethod(env, this_obj, createClosestSymbol_ID,
+ (*env)->NewStringUTF(env, sym), (jlong)offset);
+}
+
+/** called from Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_readBytesFromProcess0 */
+jbyteArray readBytesFromCore(
+ JNIEnv *env, struct ps_prochandle *ph, jobject this_obj, jlong addr, jlong numBytes)
+{
+ jboolean isCopy;
+ jbyteArray array;
+ jbyte *bufPtr;
+ ps_err_e err;
+
+ array = (*env)->NewByteArray(env, numBytes);
+ CHECK_EXCEPTION_(0);
+ bufPtr = (*env)->GetByteArrayElements(env, array, &isCopy);
+ CHECK_EXCEPTION_(0);
+
+ err = ps_pread(ph, (psaddr_t) (uintptr_t)addr, bufPtr, numBytes);
+ (*env)->ReleaseByteArrayElements(env, array, bufPtr, 0);
+ return (err == PS_OK)? array : 0;
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
* Method: readBytesFromProcess0
* Signature: (JJ)Lsun/jvm/hotspot/debugger/ReadResult;
*/
@@ -149,12 +273,15 @@
JNIEnv *env, jobject this_obj,
jlong addr, jlong numBytes)
{
- if (debug) printf("readBytesFromProcess called. addr = %llx numBytes = %lld\n", addr, numBytes);
+ print_debug("readBytesFromProcess called. addr = %llx numBytes = %lld\n", addr, numBytes);
// must allocate storage instead of using former parameter buf
- jboolean isCopy;
jbyteArray array;
- jbyte *bufPtr;
+
+ struct ps_prochandle* ph = get_proc_handle(env, this_obj);
+ if (ph->core != NULL) {
+ return readBytesFromCore(env, ph, this_obj, addr, numBytes);
+ }
array = (*env)->NewByteArray(env, numBytes);
CHECK_EXCEPTION_(0);
@@ -189,7 +316,7 @@
// assume all failures are unmapped pages
}
- if (debug) fprintf(stderr, "%ld pages\n", pageCount);
+ print_debug("%ld pages\n", pageCount);
remaining = numBytes;
@@ -207,7 +334,7 @@
}
if (mapped[i]) {
- if (debug) fprintf(stderr, "page %d mapped (len %ld start %ld)\n", i, len, start);
+ print_debug("page %d mapped (len %ld start %ld)\n", i, len, start);
(*env)->SetByteArrayRegion(env, array, 0, len, ((jbyte *) pages[i] + start));
vm_deallocate(mach_task_self(), pages[i], vm_page_size);
}
@@ -220,6 +347,115 @@
return array;
}
+/** Only used for core file reading, set thread_id for threads which is got after core file parsed.
+ * Thread context is available in Mach-O core file but thread id is not. We can get thread id
+ * from Threads which store all java threads information when they are created. Here we can identify
+ * them as java threads by checking if a thread's rsp or rbp within a java thread's stack.
+ * Note Macosx uses unique_thread_id which is different from other platforms though printed ids
+ * are still pthread id. Function BsdDebuggerLocal.getJavaThreadsInfo returns an array of long
+ * integers to host all java threads' id, stack_start, stack_end as:
+ * [uid0, stack_start0, stack_end0, uid1, stack_start1, stack_end1, ...]
+ *
+ * The work cannot be done at init0 since Threads is not available yet(VM not initialized yet).
+ * This function should be called only once if succeeded
+ */
+bool fill_java_threads(JNIEnv* env, jobject this_obj, struct ps_prochandle* ph) {
+ int n = 0, i = 0, j;
+ struct reg regs;
+
+ jlongArray thrinfos = (*env)->CallObjectMethod(env, this_obj, getJavaThreadsInfo_ID);
+ CHECK_EXCEPTION_(false);
+ int len = (int)(*env)->GetArrayLength(env, thrinfos);
+ uint64_t* cinfos = (uint64_t *)(*env)->GetLongArrayElements(env, thrinfos, NULL);
+ CHECK_EXCEPTION_(false);
+ n = get_num_threads(ph);
+ print_debug("fill_java_threads called, num_of_thread = %d\n", n);
+ for (i = 0; i < n; i++) {
+ if (!get_nth_lwp_regs(ph, i, ®s)) {
+ print_debug("Could not get regs of thread %d, already set!\n", i);
+ return false;
+ }
+ for (j = 0; j < len; j += 3) {
+ lwpid_t uid = cinfos[j];
+ uint64_t beg = cinfos[j + 1];
+ uint64_t end = cinfos[j + 2];
+ if ((regs.r_rsp < end && regs.r_rsp >= beg) ||
+ (regs.r_rbp < end && regs.r_rbp >= beg)) {
+ set_lwp_id(ph, i, uid);
+ break;
+ }
+ }
+ }
+ (*env)->ReleaseLongArrayElements(env, thrinfos, (jlong*)cinfos, 0);
+ CHECK_EXCEPTION_(false);
+ return true;
+}
+
+/* For core file only, called from
+ * Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_getThreadIntegerRegisterSet0
+ */
+jlongArray getThreadIntegerRegisterSetFromCore(JNIEnv *env, jobject this_obj, long lwp_id) {
+ if (!_threads_filled) {
+ if (!fill_java_threads(env, this_obj, get_proc_handle(env, this_obj))) {
+ throw_new_debugger_exception(env, "Failed to fill in threads");
+ return 0;
+ } else {
+ _threads_filled = true;
+ }
+ }
+
+ struct reg gregs;
+ jboolean isCopy;
+ jlongArray array;
+ jlong *regs;
+
+ struct ps_prochandle* ph = get_proc_handle(env, this_obj);
+ if (get_lwp_regs(ph, lwp_id, &gregs) != true) {
+ THROW_NEW_DEBUGGER_EXCEPTION_("get_thread_regs failed for a lwp", 0);
+ }
+
+#undef NPRGREG
+#undef REG_INDEX
+#if amd64
+#define NPRGREG sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_NPRGREG
+#define REG_INDEX(reg) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##reg
+
+ array = (*env)->NewLongArray(env, NPRGREG);
+ CHECK_EXCEPTION_(0);
+ regs = (*env)->GetLongArrayElements(env, array, &isCopy);
+
+ regs[REG_INDEX(R15)] = gregs.r_r15;
+ regs[REG_INDEX(R14)] = gregs.r_r14;
+ regs[REG_INDEX(R13)] = gregs.r_r13;
+ regs[REG_INDEX(R12)] = gregs.r_r12;
+ regs[REG_INDEX(RBP)] = gregs.r_rbp;
+ regs[REG_INDEX(RBX)] = gregs.r_rbx;
+ regs[REG_INDEX(R11)] = gregs.r_r11;
+ regs[REG_INDEX(R10)] = gregs.r_r10;
+ regs[REG_INDEX(R9)] = gregs.r_r9;
+ regs[REG_INDEX(R8)] = gregs.r_r8;
+ regs[REG_INDEX(RAX)] = gregs.r_rax;
+ regs[REG_INDEX(RCX)] = gregs.r_rcx;
+ regs[REG_INDEX(RDX)] = gregs.r_rdx;
+ regs[REG_INDEX(RSI)] = gregs.r_rsi;
+ regs[REG_INDEX(RDI)] = gregs.r_rdi;
+ regs[REG_INDEX(RIP)] = gregs.r_rip;
+ regs[REG_INDEX(CS)] = gregs.r_cs;
+ regs[REG_INDEX(RSP)] = gregs.r_rsp;
+ regs[REG_INDEX(SS)] = gregs.r_ss;
+ regs[REG_INDEX(FSBASE)] = 0;
+ regs[REG_INDEX(GSBASE)] = 0;
+ regs[REG_INDEX(DS)] = gregs.r_ds;
+ regs[REG_INDEX(ES)] = gregs.r_es;
+ regs[REG_INDEX(FS)] = gregs.r_fs;
+ regs[REG_INDEX(GS)] = gregs.r_gs;
+ regs[REG_INDEX(TRAPNO)] = gregs.r_trapno;
+ regs[REG_INDEX(RFL)] = gregs.r_rflags;
+
+#endif /* amd64 */
+ (*env)->ReleaseLongArrayElements(env, array, regs, JNI_COMMIT);
+ return array;
+}
/*
* Lookup the thread_t that corresponds to the given thread_id.
@@ -232,9 +468,7 @@
*/
thread_t
lookupThreadFromThreadId(task_t task, jlong thread_id) {
- if (debug) {
- printf("lookupThreadFromThreadId thread_id=0x%llx\n", thread_id);
- }
+ print_debug("lookupThreadFromThreadId thread_id=0x%llx\n", thread_id);
thread_array_t thread_list = NULL;
mach_msg_type_number_t thread_list_count = 0;
@@ -244,9 +478,7 @@
// get the list of all the send rights
kern_return_t result = task_threads(task, &thread_list, &thread_list_count);
if (result != KERN_SUCCESS) {
- if (debug) {
- printf("task_threads returned 0x%x\n", result);
- }
+ print_debug("task_threads returned 0x%x\n", result);
return 0;
}
@@ -257,9 +489,7 @@
// get the THREAD_IDENTIFIER_INFO for the send right
result = thread_info(thread_list[i], THREAD_IDENTIFIER_INFO, (thread_info_t) &m_ident_info, &count);
if (result != KERN_SUCCESS) {
- if (debug) {
- printf("thread_info returned 0x%x\n", result);
- }
+ print_debug("thread_info returned 0x%x\n", result);
break;
}
@@ -288,15 +518,17 @@
JNIEnv *env, jobject this_obj,
jlong thread_id)
{
- if (debug)
- printf("getThreadRegisterSet0 called\n");
+ print_debug("getThreadRegisterSet0 called\n");
+
+ struct ps_prochandle* ph = get_proc_handle(env, this_obj);
+ if (ph->core != NULL) {
+ return getThreadIntegerRegisterSetFromCore(env, this_obj, thread_id);
+ }
kern_return_t result;
thread_t tid;
mach_msg_type_number_t count = HSDB_THREAD_STATE_COUNT;
hsdb_thread_state_t state;
- unsigned int *r;
- int i;
jlongArray registerArray;
jlong *primitiveArray;
task_t gTask = getTask(env, this_obj);
@@ -306,97 +538,56 @@
result = thread_get_state(tid, HSDB_THREAD_STATE, (thread_state_t)&state, &count);
if (result != KERN_SUCCESS) {
- if (debug)
- printf("getregs: thread_get_state(%d) failed (%d)\n", tid, result);
+ print_error("getregs: thread_get_state(%d) failed (%d)\n", tid, result);
return NULL;
}
- // 40 32-bit registers on ppc, 16 on x86.
- // Output order is the same as the order in the ppc_thread_state/i386_thread_state struct.
-#if defined(__i386__)
- r = (unsigned int *)&state;
- registerArray = (*env)->NewLongArray(env, 8);
- primitiveArray = (*env)->GetLongArrayElements(env, registerArray, NULL);
- primitiveArray[0] = r[0]; // eax
- primitiveArray[1] = r[2]; // ecx
- primitiveArray[2] = r[3]; // edx
- primitiveArray[3] = r[1]; // ebx
- primitiveArray[4] = r[7]; // esp
- primitiveArray[5] = r[6]; // ebp
- primitiveArray[6] = r[5]; // esi
- primitiveArray[7] = r[4]; // edi
- (*env)->ReleaseLongArrayElements(env, registerArray, primitiveArray, 0);
-#elif defined(__x86_64__)
- /* From AMD64ThreadContext.java
- public static final int R15 = 0;
- public static final int R14 = 1;
- public static final int R13 = 2;
- public static final int R12 = 3;
- public static final int R11 = 4;
- public static final int R10 = 5;
- public static final int R9 = 6;
- public static final int R8 = 7;
- public static final int RDI = 8;
- public static final int RSI = 9;
- public static final int RBP = 10;
- public static final int RBX = 11;
- public static final int RDX = 12;
- public static final int RCX = 13;
- public static final int RAX = 14;
- public static final int TRAPNO = 15;
- public static final int ERR = 16;
- public static final int RIP = 17;
- public static final int CS = 18;
- public static final int RFL = 19;
- public static final int RSP = 20;
- public static final int SS = 21;
- public static final int FS = 22;
- public static final int GS = 23;
- public static final int ES = 24;
- public static final int DS = 25;
- public static final int FSBASE = 26;
- public static final int GSBASE = 27;
- */
- // 64 bit
- if (debug) printf("Getting threads for a 64-bit process\n");
- registerArray = (*env)->NewLongArray(env, 28);
- primitiveArray = (*env)->GetLongArrayElements(env, registerArray, NULL);
+#if amd64
+#define NPRGREG sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_NPRGREG
+#undef REG_INDEX
+#define REG_INDEX(reg) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##reg
+
+ // 64 bit
+ print_debug("Getting threads for a 64-bit process\n");
+ registerArray = (*env)->NewLongArray(env, NPRGREG);
+ CHECK_EXCEPTION_(0);
+ primitiveArray = (*env)->GetLongArrayElements(env, registerArray, NULL);
- primitiveArray[0] = state.__r15;
- primitiveArray[1] = state.__r14;
- primitiveArray[2] = state.__r13;
- primitiveArray[3] = state.__r12;
- primitiveArray[4] = state.__r11;
- primitiveArray[5] = state.__r10;
- primitiveArray[6] = state.__r9;
- primitiveArray[7] = state.__r8;
- primitiveArray[8] = state.__rdi;
- primitiveArray[9] = state.__rsi;
- primitiveArray[10] = state.__rbp;
- primitiveArray[11] = state.__rbx;
- primitiveArray[12] = state.__rdx;
- primitiveArray[13] = state.__rcx;
- primitiveArray[14] = state.__rax;
- primitiveArray[15] = 0; // trapno ?
- primitiveArray[16] = 0; // err ?
- primitiveArray[17] = state.__rip;
- primitiveArray[18] = state.__cs;
- primitiveArray[19] = state.__rflags;
- primitiveArray[20] = state.__rsp;
- primitiveArray[21] = 0; // We don't have SS
- primitiveArray[22] = state.__fs;
- primitiveArray[23] = state.__gs;
- primitiveArray[24] = 0;
- primitiveArray[25] = 0;
- primitiveArray[26] = 0;
- primitiveArray[27] = 0;
+ primitiveArray[REG_INDEX(R15)] = state.__r15;
+ primitiveArray[REG_INDEX(R14)] = state.__r14;
+ primitiveArray[REG_INDEX(R13)] = state.__r13;
+ primitiveArray[REG_INDEX(R12)] = state.__r12;
+ primitiveArray[REG_INDEX(R11)] = state.__r11;
+ primitiveArray[REG_INDEX(R10)] = state.__r10;
+ primitiveArray[REG_INDEX(R9)] = state.__r9;
+ primitiveArray[REG_INDEX(R8)] = state.__r8;
+ primitiveArray[REG_INDEX(RDI)] = state.__rdi;
+ primitiveArray[REG_INDEX(RSI)] = state.__rsi;
+ primitiveArray[REG_INDEX(RBP)] = state.__rbp;
+ primitiveArray[REG_INDEX(RBX)] = state.__rbx;
+ primitiveArray[REG_INDEX(RDX)] = state.__rdx;
+ primitiveArray[REG_INDEX(RCX)] = state.__rcx;
+ primitiveArray[REG_INDEX(RAX)] = state.__rax;
+ primitiveArray[REG_INDEX(TRAPNO)] = 0; // trapno, not used
+ primitiveArray[REG_INDEX(ERR)] = 0; // err, not used
+ primitiveArray[REG_INDEX(RIP)] = state.__rip;
+ primitiveArray[REG_INDEX(CS)] = state.__cs;
+ primitiveArray[REG_INDEX(RFL)] = state.__rflags;
+ primitiveArray[REG_INDEX(RSP)] = state.__rsp;
+ primitiveArray[REG_INDEX(SS)] = 0; // We don't have SS
+ primitiveArray[REG_INDEX(FS)] = state.__fs;
+ primitiveArray[REG_INDEX(GS)] = state.__gs;
+ primitiveArray[REG_INDEX(ES)] = 0;
+ primitiveArray[REG_INDEX(DS)] = 0;
+ primitiveArray[REG_INDEX(FSBASE)] = 0;
+ primitiveArray[REG_INDEX(GSBASE)] = 0;
+ print_debug("set registers\n");
- if (debug) printf("set registers\n");
+ (*env)->ReleaseLongArrayElements(env, registerArray, primitiveArray, 0);
- (*env)->ReleaseLongArrayElements(env, registerArray, primitiveArray, 0);
#else
-#error Unsupported architecture
-#endif
+#error UNSUPPORTED_ARCH
+#endif /* amd64 */
return registerArray;
}
@@ -410,8 +601,7 @@
Java_sun_jvm_hotspot_debugger_macosx_MacOSXDebuggerLocal_translateTID0(
JNIEnv *env, jobject this_obj, jint tid)
{
- if (debug)
- printf("translateTID0 called on tid = 0x%x\n", (int)tid);
+ print_debug("translateTID0 called on tid = 0x%x\n", (int)tid);
kern_return_t result;
thread_t foreign_tid, usable_tid;
@@ -426,8 +616,7 @@
if (result != KERN_SUCCESS)
return -1;
- if (debug)
- printf("translateTID0: 0x%x -> 0x%x\n", foreign_tid, usable_tid);
+ print_debug("translateTID0: 0x%x -> 0x%x\n", foreign_tid, usable_tid);
return (jint) usable_tid;
}
@@ -437,7 +626,7 @@
// pass the signal to the process so we don't swallow it
int res;
if ((res = ptrace(PT_CONTINUE, pid, (caddr_t)1, signal)) < 0) {
- fprintf(stderr, "attach: ptrace(PT_CONTINUE, %d) failed with %d\n", pid, res);
+ print_error("attach: ptrace(PT_CONTINUE, %d) failed with %d\n", pid, res);
return false;
}
return true;
@@ -461,11 +650,11 @@
return true;
}
if (!ptrace_continue(pid, WSTOPSIG(status))) {
- fprintf(stderr, "attach: Failed to correctly attach to VM. VM might HANG! [PTRACE_CONT failed, stopped by %d]\n", WSTOPSIG(status));
+ print_error("attach: Failed to correctly attach to VM. VM might HANG! [PTRACE_CONT failed, stopped by %d]\n", WSTOPSIG(status));
return false;
}
} else {
- fprintf(stderr, "attach: waitpid(): Child process exited/terminated (status = 0x%x)\n", status);
+ print_error("attach: waitpid(): Child process exited/terminated (status = 0x%x)\n", status);
return false;
}
} else {
@@ -474,13 +663,13 @@
continue;
break;
case ECHILD:
- fprintf(stderr, "attach: waitpid() failed. Child process pid (%d) does not exist \n", pid);
+ print_error("attach: waitpid() failed. Child process pid (%d) does not exist \n", pid);
break;
case EINVAL:
- fprintf(stderr, "attach: waitpid() failed. Invalid options argument.\n");
+ print_error("attach: waitpid() failed. Invalid options argument.\n");
break;
default:
- fprintf(stderr, "attach: waitpid() failed. Unexpected error %d\n",errno);
+ print_error("attach: waitpid() failed. Unexpected error %d\n",errno);
break;
}
return false;
@@ -492,7 +681,7 @@
static bool ptrace_attach(pid_t pid) {
int res;
if ((res = ptrace(PT_ATTACH, pid, 0, 0)) < 0) {
- fprintf(stderr, "ptrace(PT_ATTACH, %d) failed with %d\n", pid, res);
+ print_error("ptrace(PT_ATTACH, %d) failed with %d\n", pid, res);
return false;
} else {
return ptrace_waitpid(pid);
@@ -504,23 +693,19 @@
* Method: attach0
* Signature: (I)V
*/
-JNIEXPORT void JNICALL
+JNIEXPORT void JNICALL
Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__I(
- JNIEnv *env, jobject this_obj, jint jpid)
+ JNIEnv *env, jobject this_obj, jint jpid)
{
+ print_debug("attach0 called for jpid=%d\n", (int)jpid);
+
JNF_COCOA_ENTER(env);
- if (getenv("JAVA_SAPROC_DEBUG") != NULL)
- debug = JNI_TRUE;
- else
- debug = JNI_FALSE;
- if (debug) printf("attach0 called for jpid=%d\n", (int)jpid);
-
- // get the task from the pid
+
kern_return_t result;
task_t gTask = 0;
result = task_for_pid(mach_task_self(), jpid, &gTask);
if (result != KERN_SUCCESS) {
- fprintf(stderr, "attach: task_for_pid(%d) failed (%d)\n", (int)jpid, result);
+ print_error("attach: task_for_pid(%d) failed (%d)\n", (int)jpid, result);
THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the process");
}
putTask(env, this_obj, gTask);
@@ -550,18 +735,79 @@
JNF_COCOA_EXIT(env);
}
+/** For core file,
+ called from Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2 */
+static void fillLoadObjects(JNIEnv* env, jobject this_obj, struct ps_prochandle* ph) {
+ int n = 0, i = 0;
+
+ // add load objects
+ n = get_num_libs(ph);
+ for (i = 0; i < n; i++) {
+ uintptr_t base;
+ const char* name;
+ jobject loadObject;
+ jobject loadObjectList;
+
+ base = get_lib_base(ph, i);
+ name = get_lib_name(ph, i);
+ loadObject = (*env)->CallObjectMethod(env, this_obj, createLoadObject_ID,
+ (*env)->NewStringUTF(env, name), (jlong)0, (jlong)base);
+ CHECK_EXCEPTION;
+ loadObjectList = (*env)->GetObjectField(env, this_obj, loadObjectList_ID);
+ CHECK_EXCEPTION;
+ (*env)->CallBooleanMethod(env, loadObjectList, listAdd_ID, loadObject);
+ CHECK_EXCEPTION;
+ }
+}
+
+/*
+ * Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
+ * Method: attach0
+ * Signature: (Ljava/lang/String;Ljava/lang/String;)V
+ */
+JNIEXPORT void JNICALL
+Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_attach0__Ljava_lang_String_2Ljava_lang_String_2(
+ JNIEnv *env, jobject this_obj, jstring execName, jstring coreName)
+{
+ const char *execName_cstr;
+ const char *coreName_cstr;
+ jboolean isCopy;
+ struct ps_prochandle* ph;
+
+ execName_cstr = (*env)->GetStringUTFChars(env, execName, &isCopy);
+ CHECK_EXCEPTION;
+ coreName_cstr = (*env)->GetStringUTFChars(env, coreName, &isCopy);
+ CHECK_EXCEPTION;
+
+ print_debug("attach: %s %s\n", execName_cstr, coreName_cstr);
+
+ if ( (ph = Pgrab_core(execName_cstr, coreName_cstr)) == NULL) {
+ (*env)->ReleaseStringUTFChars(env, execName, execName_cstr);
+ (*env)->ReleaseStringUTFChars(env, coreName, coreName_cstr);
+ THROW_NEW_DEBUGGER_EXCEPTION("Can't attach to the core file");
+ }
+ (*env)->SetLongField(env, this_obj, p_ps_prochandle_ID, (jlong)(intptr_t)ph);
+ (*env)->ReleaseStringUTFChars(env, execName, execName_cstr);
+ (*env)->ReleaseStringUTFChars(env, coreName, coreName_cstr);
+ fillLoadObjects(env, this_obj, ph);
+}
+
/*
* Class: sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal
* Method: detach0
* Signature: ()V
*/
-JNIEXPORT void JNICALL
+JNIEXPORT void JNICALL
Java_sun_jvm_hotspot_debugger_bsd_BsdDebuggerLocal_detach0(
- JNIEnv *env, jobject this_obj)
+ JNIEnv *env, jobject this_obj)
{
+ print_debug("detach0 called\n");
+ struct ps_prochandle* ph = get_proc_handle(env, this_obj);
+ if (ph != NULL && ph->core != NULL) {
+ Prelease(ph);
+ return;
+ }
JNF_COCOA_ENTER(env);
- if (debug) printf("detach0 called\n");
-
task_t gTask = getTask(env, this_obj);
// detach from the ptraced process causing it to resume execution
@@ -569,15 +815,15 @@
kern_return_t k_res;
k_res = pid_for_task(gTask, &pid);
if (k_res != KERN_SUCCESS) {
- fprintf(stderr, "detach: pid_for_task(%d) failed (%d)\n", pid, k_res);
+ print_error("detach: pid_for_task(%d) failed (%d)\n", pid, k_res);
}
else {
int res = ptrace(PT_DETACH, pid, 0, 0);
if (res < 0) {
- fprintf(stderr, "detach: ptrace(PT_DETACH, %d) failed (%d)\n", pid, res);
+ print_error("detach: ptrace(PT_DETACH, %d) failed (%d)\n", pid, res);
}
}
-
+
mach_port_deallocate(mach_task_self(), gTask);
id symbolicator = getSymbolicator(env, this_obj);
if (symbolicator != nil) {
@@ -585,170 +831,3 @@
}
JNF_COCOA_EXIT(env);
}
-
-/*
- * Class: sun_jvm_hotspot_asm_Disassembler
- * Method: load_library
- * Signature: (Ljava/lang/String;)L
- */
-JNIEXPORT jlong JNICALL
-Java_sun_jvm_hotspot_asm_Disassembler_load_1library(
- JNIEnv * env,
- jclass disclass,
- jstring jrepath_s,
- jstring libname_s)
-{
- uintptr_t func = 0;
- const char* error_message = NULL;
- const char* java_home;
- jboolean isCopy;
- uintptr_t *handle = NULL;
-
- const char * jrepath = (*env)->GetStringUTFChars(env, jrepath_s, &isCopy); // like $JAVA_HOME/jre/lib/sparc/
- const char * libname = (*env)->GetStringUTFChars(env, libname_s, &isCopy);
- char buffer[128];
-
- /* Load the hsdis library */
- void* hsdis_handle;
- hsdis_handle = dlopen(libname, RTLD_LAZY | RTLD_GLOBAL);
- if (hsdis_handle == NULL) {
- snprintf(buffer, sizeof(buffer), "%s%s", jrepath, libname);
- hsdis_handle = dlopen(buffer, RTLD_LAZY | RTLD_GLOBAL);
- }
- if (hsdis_handle != NULL) {
- func = (uintptr_t)dlsym(hsdis_handle, "decode_instructions_virtual");
- }
- if (func == 0) {
- error_message = dlerror();
- fprintf(stderr, "%s\n", error_message);
- }
-
- (*env)->ReleaseStringUTFChars(env, libname_s, libname);
- (*env)->ReleaseStringUTFChars(env, jrepath_s, jrepath);
-
- if (func == 0) {
- /* Couldn't find entry point. error_message should contain some
- * platform dependent error message.
- */
- THROW_NEW_DEBUGGER_EXCEPTION_(error_message, (jlong)func);
- }
- return (jlong)func;
-}
-
-/* signature of decode_instructions_virtual from hsdis.h */
-typedef void* (*decode_func)(uintptr_t start_va, uintptr_t end_va,
- unsigned char* start, uintptr_t length,
- void* (*event_callback)(void*, const char*, void*),
- void* event_stream,
- int (*printf_callback)(void*, const char*, ...),
- void* printf_stream,
- const char* options);
-
-/* container for call back state when decoding instructions */
-typedef struct {
- JNIEnv* env;
- jobject dis;
- jobject visitor;
- jmethodID handle_event;
- jmethodID raw_print;
- char buffer[4096];
-} decode_env;
-
-
-/* event callback binding to Disassembler.handleEvent */
-static void* event_to_env(void* env_pv, const char* event, void* arg) {
- decode_env* denv = (decode_env*)env_pv;
- JNIEnv* env = denv->env;
- jstring event_string = (*env)->NewStringUTF(env, event);
- jlong result = (*env)->CallLongMethod(env, denv->dis, denv->handle_event, denv->visitor,
- event_string, (jlong) (uintptr_t)arg);
- /* ignore exceptions for now */
- CHECK_EXCEPTION_CLEAR_((void *)0);
- return (void*)(uintptr_t)result;
-}
-
-/* printing callback binding to Disassembler.rawPrint */
-static int printf_to_env(void* env_pv, const char* format, ...) {
- jstring output;
- va_list ap;
- int cnt;
- decode_env* denv = (decode_env*)env_pv;
- JNIEnv* env = denv->env;
- size_t flen = strlen(format);
- const char* raw = NULL;
-
- if (flen == 0) return 0;
- if (flen < 2 ||
- strchr(format, '%') == NULL) {
- raw = format;
- } else if (format[0] == '%' && format[1] == '%' &&
- strchr(format+2, '%') == NULL) {
- // happens a lot on machines with names like %foo
- flen--;
- raw = format+1;
- }
- if (raw != NULL) {
- jstring output = (*env)->NewStringUTF(env, raw);
- (*env)->CallVoidMethod(env, denv->dis, denv->raw_print, denv->visitor, output);
- CHECK_EXCEPTION_CLEAR;
- return (int) flen;
- }
- va_start(ap, format);
- cnt = vsnprintf(denv->buffer, sizeof(denv->buffer), format, ap);
- va_end(ap);
-
- output = (*env)->NewStringUTF(env, denv->buffer);
- (*env)->CallVoidMethod(env, denv->dis, denv->raw_print, denv->visitor, output);
- CHECK_EXCEPTION_CLEAR;
- return cnt;
-}
-
-/*
- * Class: sun_jvm_hotspot_asm_Disassembler
- * Method: decode
- * Signature: (Lsun/jvm/hotspot/asm/InstructionVisitor;J[BLjava/lang/String;J)V
- */
-JNIEXPORT void JNICALL
-Java_sun_jvm_hotspot_asm_Disassembler_decode(
- JNIEnv * env,
- jobject dis,
- jobject visitor,
- jlong startPc,
- jbyteArray code,
- jstring options_s,
- jlong decode_instructions_virtual)
-{
- jboolean isCopy;
- jbyte* start = (*env)->GetByteArrayElements(env, code, &isCopy);
- jbyte* end = start + (*env)->GetArrayLength(env, code);
- const char * options = (*env)->GetStringUTFChars(env, options_s, &isCopy);
- jclass disclass = (*env)->GetObjectClass(env, dis);
-
- decode_env denv;
- denv.env = env;
- denv.dis = dis;
- denv.visitor = visitor;
-
- /* find Disassembler.handleEvent callback */
- denv.handle_event = (*env)->GetMethodID(env, disclass, "handleEvent",
- "(Lsun/jvm/hotspot/asm/InstructionVisitor;Ljava/lang/String;J)J");
- CHECK_EXCEPTION_CLEAR_VOID
-
- /* find Disassembler.rawPrint callback */
- denv.raw_print = (*env)->GetMethodID(env, disclass, "rawPrint",
- "(Lsun/jvm/hotspot/asm/InstructionVisitor;Ljava/lang/String;)V");
- CHECK_EXCEPTION_CLEAR_VOID
-
- /* decode the buffer */
- (*(decode_func)(uintptr_t)decode_instructions_virtual)(startPc,
- startPc + end - start,
- (unsigned char*)start,
- end - start,
- &event_to_env, (void*) &denv,
- &printf_to_env, (void*) &denv,
- options);
-
- /* cleanup */
- (*env)->ReleaseByteArrayElements(env, code, start, JNI_ABORT);
- (*env)->ReleaseStringUTFChars(env, options_s, options);
-}
--- a/hotspot/agent/src/os/bsd/Makefile Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/os/bsd/Makefile Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
#
-# Copyright (c) 2002, 2009, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2002, 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
@@ -22,34 +22,60 @@
#
#
-ARCH := $(shell if ([ `uname -m` = "ia64" ]) ; then echo ia64 ; elif ([ `uname -m` = "amd64" ]) ; then echo amd64; elif ([ `uname -m` = "sparc64" ]) ; then echo sparc; else echo i386 ; fi )
+ARCH := $(shell if ([ `uname -m` = "ia64" ]) ; then echo ia64 ; elif ([ `uname -m` = "amd64" ]) ; then echo amd64; elif ([ `uname -m` = "x86_64" ]) ; then echo amd64; elif ([ `uname -m` = "sparc64" ]) ; then echo sparc; else echo i386 ; fi )
+
+OS := $(shell uname -s)
+
GCC = gcc
JAVAH = ${JAVA_HOME}/bin/javah
+ifneq ($(OS), Darwin)
SOURCES = salibelf.c \
symtab.c \
libproc_impl.c \
ps_proc.c \
ps_core.c \
BsdDebuggerLocal.c
-
-INCLUDES = -I${JAVA_HOME}/include -I${JAVA_HOME}/include/$(shell uname -s | tr "[:upper:]" "[:lower:]")
-
-OBJS = $(SOURCES:.c=.o)
+OBJS = $(SOURCES:.c=.o)
+OBJSPLUS = $(OBJS) sadis.o
+LIBSA = $(ARCH)/libsaproc.so
LIBS = -lutil -lthread_db
-CFLAGS = -c -fPIC -g -Wall -D_ALLBSD_SOURCE -D_GNU_SOURCE -D$(ARCH) $(INCLUDES)
+else
-LIBSA = $(ARCH)/libsaproc.so
+SOURCES = symtab.c \
+ libproc_impl.c \
+ ps_core.c
+OBJS = $(SOURCES:.c=.o)
+OBJSPLUS = MacosxDebuggerLocal.o sadis.o $(OBJS)
+EXTINCLUDE = -I/System/Library/Frameworks/JavaVM.framework/Headers -I.
+EXTCFLAGS = -m64 -D__APPLE__ -framework JavaNativeFoundation
+FOUNDATIONFLAGS = -framework Foundation -F/System/Library/Frameworks/JavaVM.framework/Frameworks -framework JavaNativeFoundation -framework Security -framework CoreFoundation
+LIBSA = $(ARCH)/libsaproc.dylib
+endif # Darwin
+
+INCLUDES = -I${JAVA_HOME}/include -I${JAVA_HOME}/include/$(shell uname -s | tr "[:upper:]" "[:lower:]") $(EXTINCLUDE)
+
+
+
+CFLAGS = -c -fPIC -g -Wall -D_ALLBSD_SOURCE -D_GNU_SOURCE -D$(ARCH) $(INCLUDES) $(EXTCFLAGS)
+
+
all: $(LIBSA)
-BsdDebuggerLocal.o: BsdDebuggerLocal.c
- $(JAVAH) -jni -classpath ../../../../../build/bsd-i586/hotspot/outputdir/bsd_i486_compiler2/generated/saclasses \
+MacosxDebuggerLocal.o: MacosxDebuggerLocal.m
+ echo "OS="$(OS)
+ $(JAVAH) -jni -classpath ../../../build/classes \
sun.jvm.hotspot.debugger.x86.X86ThreadContext \
sun.jvm.hotspot.debugger.amd64.AMD64ThreadContext
+ $(GCC) $(CFLAGS) $(FOUNDATIONFLAGS) $<
+
+sadis.o: ../../share/native/sadis.c
+ $(JAVAH) -jni -classpath ../../../build/classes \
+ sun.jvm.hotspot.asm.Disassembler
$(GCC) $(CFLAGS) $<
.c.obj:
@@ -59,9 +85,9 @@
LFLAGS_LIBSA = -Xlinker --version-script=mapfile
endif
-$(LIBSA): $(OBJS) mapfile
+$(LIBSA): $(OBJSPLUS) mapfile
if [ ! -d $(ARCH) ] ; then mkdir $(ARCH) ; fi
- $(GCC) -shared $(LFLAGS_LIBSA) -o $(LIBSA) $(OBJS) $(LIBS)
+ $(GCC) -shared $(LFLAGS_LIBSA) -o $(LIBSA) $(FOUNDATIONFLAGS) $(OBJSPLUS) $(LIBS) $(SALIBS)
test.o: $(LIBSA) test.c
$(GCC) -c -o test.o -g -D_GNU_SOURCE -D$(ARCH) $(INCLUDES) test.c
@@ -71,7 +97,6 @@
clean:
rm -f $(LIBSA)
- rm -f $(OBJS)
+ rm -f *.o
rm -f test.o
-rmdir $(ARCH)
-
--- a/hotspot/agent/src/os/bsd/libproc.h Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/os/bsd/libproc.h Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2003, 2007, 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
@@ -27,9 +27,38 @@
#include <unistd.h>
#include <stdint.h>
+#include <stdarg.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+
+#ifdef __APPLE__
+typedef enum ps_err_e {
+ PS_OK, PS_ERR, PS_BADPID, PS_BADLID,
+ PS_BADADDR, PS_NOSYM, PS_NOFREGS
+} ps_err_e;
+
+#ifndef psaddr_t
+#define psaddr_t uintptr_t
+#endif
+
+#ifndef bool
+typedef int bool;
+#define true 1
+#define false 0
+#endif // bool
+
+#ifndef lwpid_t
+#define lwpid_t uintptr_t
+#endif
+
+#include <mach/thread_status.h>
+#else // __APPLE__
+#include <elf.h>
+#include <link.h>
#include <machine/reg.h>
#include <proc_service.h>
-
#if defined(sparc) || defined(sparcv9)
/*
If _LP64 is defined ptrace.h should be taken from /usr/include/asm-sparc64
@@ -44,6 +73,14 @@
#endif //sparc or sparcv9
+// This C bool type must be int for compatibility with BSD calls and
+// it would be a mistake to equivalence it to C++ bool on many platforms
+typedef int bool;
+#define true 1
+#define false 0
+
+#endif // __APPLE__
+
/************************************************************************************
0. This is very minimal subset of Solaris libproc just enough for current application.
@@ -72,13 +109,7 @@
*************************************************************************************/
-// This C bool type must be int for compatibility with BSD calls and
-// it would be a mistake to equivalence it to C++ bool on many platforms
-
-typedef int bool;
-#define true 1
-#define false 0
-
+struct reg;
struct ps_prochandle;
// attach to a process
--- a/hotspot/agent/src/os/bsd/libproc_impl.c Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/os/bsd/libproc_impl.c Sun Mar 17 08:57:56 2013 -0700
@@ -21,12 +21,6 @@
* questions.
*
*/
-#include <stdarg.h>
-#include <stdio.h>
-#include <stdlib.h>
-#include <string.h>
-#include <fcntl.h>
-#include <thread_db.h>
#include "libproc_impl.h"
static const char* alt_root = NULL;
@@ -34,61 +28,65 @@
#define SA_ALTROOT "SA_ALTROOT"
+off_t ltell(int fd) {
+ return lseek(fd, 0, SEEK_CUR);
+}
+
static void init_alt_root() {
- if (alt_root_len == -1) {
- alt_root = getenv(SA_ALTROOT);
- if (alt_root) {
- alt_root_len = strlen(alt_root);
- } else {
- alt_root_len = 0;
- }
- }
+ if (alt_root_len == -1) {
+ alt_root = getenv(SA_ALTROOT);
+ if (alt_root) {
+ alt_root_len = strlen(alt_root);
+ } else {
+ alt_root_len = 0;
+ }
+ }
}
int pathmap_open(const char* name) {
- int fd;
- char alt_path[PATH_MAX + 1];
+ int fd;
+ char alt_path[PATH_MAX + 1];
+
+ init_alt_root();
- init_alt_root();
- fd = open(name, O_RDONLY);
- if (fd >= 0) {
+ if (alt_root_len > 0) {
+ strcpy(alt_path, alt_root);
+ strcat(alt_path, name);
+ fd = open(alt_path, O_RDONLY);
+ if (fd >= 0) {
+ print_debug("path %s substituted for %s\n", alt_path, name);
return fd;
- }
+ }
- if (alt_root_len > 0) {
+ if (strrchr(name, '/')) {
strcpy(alt_path, alt_root);
- strcat(alt_path, name);
+ strcat(alt_path, strrchr(name, '/'));
fd = open(alt_path, O_RDONLY);
if (fd >= 0) {
- print_debug("path %s substituted for %s\n", alt_path, name);
- return fd;
+ print_debug("path %s substituted for %s\n", alt_path, name);
+ return fd;
}
-
- if (strrchr(name, '/')) {
- strcpy(alt_path, alt_root);
- strcat(alt_path, strrchr(name, '/'));
- fd = open(alt_path, O_RDONLY);
- if (fd >= 0) {
- print_debug("path %s substituted for %s\n", alt_path, name);
- return fd;
- }
- }
- }
-
- return -1;
+ }
+ } else {
+ fd = open(name, O_RDONLY);
+ if (fd >= 0) {
+ return fd;
+ }
+ }
+ return -1;
}
static bool _libsaproc_debug;
void print_debug(const char* format,...) {
- if (_libsaproc_debug) {
- va_list alist;
+ if (_libsaproc_debug) {
+ va_list alist;
- va_start(alist, format);
- fputs("libsaproc DEBUG: ", stderr);
- vfprintf(stderr, format, alist);
- va_end(alist);
- }
+ va_start(alist, format);
+ fputs("libsaproc DEBUG: ", stderr);
+ vfprintf(stderr, format, alist);
+ va_end(alist);
+ }
}
void print_error(const char* format,...) {
@@ -100,172 +98,235 @@
}
bool is_debug() {
- return _libsaproc_debug;
+ return _libsaproc_debug;
}
+#ifdef __APPLE__
+// get arch offset in file
+bool get_arch_off(int fd, cpu_type_t cputype, off_t *offset) {
+ struct fat_header fatheader;
+ struct fat_arch fatarch;
+ off_t img_start = 0;
+
+ off_t pos = ltell(fd);
+ if (read(fd, (void *)&fatheader, sizeof(struct fat_header)) != sizeof(struct fat_header)) {
+ return false;
+ }
+ if (fatheader.magic == FAT_CIGAM) {
+ int i;
+ for (i = 0; i < ntohl(fatheader.nfat_arch); i++) {
+ if (read(fd, (void *)&fatarch, sizeof(struct fat_arch)) != sizeof(struct fat_arch)) {
+ return false;
+ }
+ if (ntohl(fatarch.cputype) == cputype) {
+ print_debug("fat offset=%x\n", ntohl(fatarch.offset));
+ img_start = ntohl(fatarch.offset);
+ break;
+ }
+ }
+ if (img_start == 0) {
+ return false;
+ }
+ }
+ lseek(fd, pos, SEEK_SET);
+ *offset = img_start;
+ return true;
+}
+
+bool is_macho_file(int fd) {
+ mach_header_64 fhdr;
+ off_t x86_64_off;
+
+ if (fd < 0) {
+ print_debug("Invalid file handle passed to is_macho_file\n");
+ return false;
+ }
+
+ off_t pos = ltell(fd);
+ // check fat header
+ if (!get_arch_off(fd, CPU_TYPE_X86_64, &x86_64_off)) {
+ print_debug("failed to get fat header\n");
+ return false;
+ }
+ lseek(fd, x86_64_off, SEEK_SET);
+ if (read(fd, (void *)&fhdr, sizeof(mach_header_64)) != sizeof(mach_header_64)) {
+ return false;
+ }
+ lseek(fd, pos, SEEK_SET); // restore
+ print_debug("fhdr.magic %x\n", fhdr.magic);
+ return (fhdr.magic == MH_MAGIC_64 || fhdr.magic == MH_CIGAM_64);
+}
+
+#endif //__APPLE__
+
// initialize libproc
bool init_libproc(bool debug) {
- // init debug mode
_libsaproc_debug = debug;
-
+#ifndef __APPLE__
// initialize the thread_db library
if (td_init() != TD_OK) {
print_debug("libthread_db's td_init failed\n");
return false;
}
-
+#endif // __APPLE__
return true;
}
-static void destroy_lib_info(struct ps_prochandle* ph) {
- lib_info* lib = ph->libs;
- while (lib) {
- lib_info *next = lib->next;
- if (lib->symtab) {
- destroy_symtab(lib->symtab);
- }
- free(lib);
- lib = next;
- }
+void destroy_lib_info(struct ps_prochandle* ph) {
+ lib_info* lib = ph->libs;
+ while (lib) {
+ lib_info* next = lib->next;
+ if (lib->symtab) {
+ destroy_symtab(lib->symtab);
+ }
+ free(lib);
+ lib = next;
+ }
}
-static void destroy_thread_info(struct ps_prochandle* ph) {
- thread_info* thr = ph->threads;
- while (thr) {
- thread_info *next = thr->next;
- free(thr);
- thr = next;
- }
+void destroy_thread_info(struct ps_prochandle* ph) {
+ sa_thread_info* thr = ph->threads;
+ while (thr) {
+ sa_thread_info* n = thr->next;
+ free(thr);
+ thr = n;
+ }
}
// ps_prochandle cleanup
-
-// ps_prochandle cleanup
void Prelease(struct ps_prochandle* ph) {
- // do the "derived class" clean-up first
- ph->ops->release(ph);
- destroy_lib_info(ph);
- destroy_thread_info(ph);
- free(ph);
+ // do the "derived class" clean-up first
+ ph->ops->release(ph);
+ destroy_lib_info(ph);
+ destroy_thread_info(ph);
+ free(ph);
}
lib_info* add_lib_info(struct ps_prochandle* ph, const char* libname, uintptr_t base) {
- return add_lib_info_fd(ph, libname, -1, base);
+ return add_lib_info_fd(ph, libname, -1, base);
}
lib_info* add_lib_info_fd(struct ps_prochandle* ph, const char* libname, int fd, uintptr_t base) {
lib_info* newlib;
+ print_debug("add_lib_info_fd %s\n", libname);
- if ( (newlib = (lib_info*) calloc(1, sizeof(struct lib_info))) == NULL) {
- print_debug("can't allocate memory for lib_info\n");
- return NULL;
- }
-
- strncpy(newlib->name, libname, sizeof(newlib->name));
- newlib->base = base;
+ if ( (newlib = (lib_info*) calloc(1, sizeof(struct lib_info))) == NULL) {
+ print_debug("can't allocate memory for lib_info\n");
+ return NULL;
+ }
- if (fd == -1) {
- if ( (newlib->fd = pathmap_open(newlib->name)) < 0) {
- print_debug("can't open shared object %s\n", newlib->name);
- free(newlib);
- return NULL;
- }
- } else {
- newlib->fd = fd;
- }
+ strncpy(newlib->name, libname, sizeof(newlib->name));
+ newlib->base = base;
- // check whether we have got an ELF file. /proc/<pid>/map
- // gives out all file mappings and not just shared objects
- if (is_elf_file(newlib->fd) == false) {
- close(newlib->fd);
+ if (fd == -1) {
+ if ( (newlib->fd = pathmap_open(newlib->name)) < 0) {
+ print_debug("can't open shared object %s\n", newlib->name);
free(newlib);
return NULL;
- }
-
- newlib->symtab = build_symtab(newlib->fd);
- if (newlib->symtab == NULL) {
- print_debug("symbol table build failed for %s\n", newlib->name);
- }
- else {
- print_debug("built symbol table for %s\n", newlib->name);
- }
+ }
+ } else {
+ newlib->fd = fd;
+ }
- // even if symbol table building fails, we add the lib_info.
- // This is because we may need to read from the ELF file for core file
- // address read functionality. lookup_symbol checks for NULL symtab.
- if (ph->libs) {
- ph->lib_tail->next = newlib;
- ph->lib_tail = newlib;
- } else {
- ph->libs = ph->lib_tail = newlib;
- }
- ph->num_libs++;
+#ifdef __APPLE__
+ // check whether we have got an Macho file.
+ if (is_macho_file(newlib->fd) == false) {
+ close(newlib->fd);
+ free(newlib);
+ print_debug("not a mach-o file\n");
+ return NULL;
+ }
+#else
+ // check whether we have got an ELF file. /proc/<pid>/map
+ // gives out all file mappings and not just shared objects
+ if (is_elf_file(newlib->fd) == false) {
+ close(newlib->fd);
+ free(newlib);
+ return NULL;
+ }
+#endif // __APPLE__
- return newlib;
+ newlib->symtab = build_symtab(newlib->fd);
+ if (newlib->symtab == NULL) {
+ print_debug("symbol table build failed for %s\n", newlib->name);
+ } else {
+ print_debug("built symbol table for %s\n", newlib->name);
+ }
+
+ // even if symbol table building fails, we add the lib_info.
+ // This is because we may need to read from the ELF file or MachO file for core file
+ // address read functionality. lookup_symbol checks for NULL symtab.
+ if (ph->libs) {
+ ph->lib_tail->next = newlib;
+ ph->lib_tail = newlib;
+ } else {
+ ph->libs = ph->lib_tail = newlib;
+ }
+ ph->num_libs++;
+ return newlib;
}
// lookup for a specific symbol
uintptr_t lookup_symbol(struct ps_prochandle* ph, const char* object_name,
const char* sym_name) {
- // ignore object_name. search in all libraries
- // FIXME: what should we do with object_name?? The library names are obtained
- // by parsing /proc/<pid>/maps, which may not be the same as object_name.
- // What we need is a utility to map object_name to real file name, something
- // dlopen() does by looking at LD_LIBRARY_PATH and /etc/ld.so.cache. For
- // now, we just ignore object_name and do a global search for the symbol.
+ // ignore object_name. search in all libraries
+ // FIXME: what should we do with object_name?? The library names are obtained
+ // by parsing /proc/<pid>/maps, which may not be the same as object_name.
+ // What we need is a utility to map object_name to real file name, something
+ // dlopen() does by looking at LD_LIBRARY_PATH and /etc/ld.so.cache. For
+ // now, we just ignore object_name and do a global search for the symbol.
- lib_info* lib = ph->libs;
- while (lib) {
- if (lib->symtab) {
- uintptr_t res = search_symbol(lib->symtab, lib->base, sym_name, NULL);
- if (res) return res;
- }
- lib = lib->next;
- }
+ lib_info* lib = ph->libs;
+ while (lib) {
+ if (lib->symtab) {
+ uintptr_t res = search_symbol(lib->symtab, lib->base, sym_name, NULL);
+ if (res) return res;
+ }
+ lib = lib->next;
+ }
- print_debug("lookup failed for symbol '%s' in obj '%s'\n",
+ print_debug("lookup failed for symbol '%s' in obj '%s'\n",
sym_name, object_name);
- return (uintptr_t) NULL;
+ return (uintptr_t) NULL;
}
-
const char* symbol_for_pc(struct ps_prochandle* ph, uintptr_t addr, uintptr_t* poffset) {
- const char* res = NULL;
- lib_info* lib = ph->libs;
- while (lib) {
- if (lib->symtab && addr >= lib->base) {
- res = nearest_symbol(lib->symtab, addr - lib->base, poffset);
- if (res) return res;
- }
- lib = lib->next;
- }
- return NULL;
+ const char* res = NULL;
+ lib_info* lib = ph->libs;
+ while (lib) {
+ if (lib->symtab && addr >= lib->base) {
+ res = nearest_symbol(lib->symtab, addr - lib->base, poffset);
+ if (res) return res;
+ }
+ lib = lib->next;
+ }
+ return NULL;
}
// add a thread to ps_prochandle
-thread_info* add_thread_info(struct ps_prochandle* ph, pthread_t pthread_id, lwpid_t lwp_id) {
- thread_info* newthr;
- if ( (newthr = (thread_info*) calloc(1, sizeof(thread_info))) == NULL) {
- print_debug("can't allocate memory for thread_info\n");
- return NULL;
- }
+sa_thread_info* add_thread_info(struct ps_prochandle* ph, pthread_t pthread_id, lwpid_t lwp_id) {
+ sa_thread_info* newthr;
+ if ( (newthr = (sa_thread_info*) calloc(1, sizeof(sa_thread_info))) == NULL) {
+ print_debug("can't allocate memory for thread_info\n");
+ return NULL;
+ }
- // initialize thread info
- newthr->pthread_id = pthread_id;
- newthr->lwp_id = lwp_id;
+ // initialize thread info
+ newthr->pthread_id = pthread_id;
+ newthr->lwp_id = lwp_id;
- // add new thread to the list
- newthr->next = ph->threads;
- ph->threads = newthr;
- ph->num_threads++;
- return newthr;
+ // add new thread to the list
+ newthr->next = ph->threads;
+ ph->threads = newthr;
+ ph->num_threads++;
+ return newthr;
}
-
+#ifndef __APPLE__
// struct used for client data from thread_db callback
struct thread_db_client_data {
- struct ps_prochandle* ph;
- thread_info_callback callback;
+ struct ps_prochandle* ph;
+ thread_info_callback callback;
};
// callback function for libthread_db
@@ -314,6 +375,7 @@
return true;
}
+#endif // __APPLE__
// get number of threads
int get_num_threads(struct ps_prochandle* ph) {
@@ -322,18 +384,54 @@
// get lwp_id of n'th thread
lwpid_t get_lwp_id(struct ps_prochandle* ph, int index) {
- int count = 0;
- thread_info* thr = ph->threads;
- while (thr) {
- if (count == index) {
- return thr->lwp_id;
- }
- count++;
- thr = thr->next;
- }
- return -1;
+ int count = 0;
+ sa_thread_info* thr = ph->threads;
+ while (thr) {
+ if (count == index) {
+ return thr->lwp_id;
+ }
+ count++;
+ thr = thr->next;
+ }
+ return 0;
}
+#ifdef __APPLE__
+// set lwp_id of n'th thread
+bool set_lwp_id(struct ps_prochandle* ph, int index, lwpid_t lwpid) {
+ int count = 0;
+ sa_thread_info* thr = ph->threads;
+ while (thr) {
+ if (count == index) {
+ thr->lwp_id = lwpid;
+ return true;
+ }
+ count++;
+ thr = thr->next;
+ }
+ return false;
+}
+
+// get regs of n-th thread, only used in fillThreads the first time called
+bool get_nth_lwp_regs(struct ps_prochandle* ph, int index, struct reg* regs) {
+ int count = 0;
+ sa_thread_info* thr = ph->threads;
+ while (thr) {
+ if (count == index) {
+ break;
+ }
+ count++;
+ thr = thr->next;
+ }
+ if (thr != NULL) {
+ memcpy(regs, &thr->regs, sizeof(struct reg));
+ return true;
+ }
+ return false;
+}
+
+#endif // __APPLE__
+
// get regs for a given lwp
bool get_lwp_regs(struct ps_prochandle* ph, lwpid_t lwp_id, struct reg* regs) {
return ph->ops->get_lwp_regs(ph, lwp_id, regs);
@@ -341,35 +439,35 @@
// get number of shared objects
int get_num_libs(struct ps_prochandle* ph) {
- return ph->num_libs;
+ return ph->num_libs;
}
// get name of n'th solib
const char* get_lib_name(struct ps_prochandle* ph, int index) {
- int count = 0;
- lib_info* lib = ph->libs;
- while (lib) {
- if (count == index) {
- return lib->name;
- }
- count++;
- lib = lib->next;
- }
- return NULL;
+ int count = 0;
+ lib_info* lib = ph->libs;
+ while (lib) {
+ if (count == index) {
+ return lib->name;
+ }
+ count++;
+ lib = lib->next;
+ }
+ return NULL;
}
// get base address of a lib
uintptr_t get_lib_base(struct ps_prochandle* ph, int index) {
- int count = 0;
- lib_info* lib = ph->libs;
- while (lib) {
- if (count == index) {
- return lib->base;
- }
- count++;
- lib = lib->next;
- }
- return (uintptr_t)NULL;
+ int count = 0;
+ lib_info* lib = ph->libs;
+ while (lib) {
+ if (count == index) {
+ return lib->base;
+ }
+ count++;
+ lib = lib->next;
+ }
+ return (uintptr_t)NULL;
}
bool find_lib(struct ps_prochandle* ph, const char *lib_name) {
@@ -425,6 +523,7 @@
va_end(alist);
}
+#ifndef __APPLE__
// ------------------------------------------------------------------------
// Functions below this point are not yet implemented. They are here only
// to make the linker happy.
@@ -458,3 +557,4 @@
print_debug("ps_pcontinue not implemented\n");
return PS_OK;
}
+#endif // __APPLE__
--- a/hotspot/agent/src/os/bsd/libproc_impl.h Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/os/bsd/libproc_impl.h Sun Mar 17 08:57:56 2013 -0700
@@ -30,6 +30,60 @@
#include "libproc.h"
#include "symtab.h"
+#ifdef __APPLE__
+#include <inttypes.h> // for PRIx64, 32, ...
+#include <pthread.h>
+#include <mach-o/loader.h>
+#include <mach-o/nlist.h>
+#include <mach-o/fat.h>
+
+#ifndef register_t
+#define register_t uint64_t
+#endif
+
+/*** registers copied from bsd/amd64 */
+typedef struct reg {
+ register_t r_r15;
+ register_t r_r14;
+ register_t r_r13;
+ register_t r_r12;
+ register_t r_r11;
+ register_t r_r10;
+ register_t r_r9;
+ register_t r_r8;
+ register_t r_rdi;
+ register_t r_rsi;
+ register_t r_rbp;
+ register_t r_rbx;
+ register_t r_rdx;
+ register_t r_rcx;
+ register_t r_rax;
+ uint32_t r_trapno; // not used
+ uint16_t r_fs;
+ uint16_t r_gs;
+ uint32_t r_err; // not used
+ uint16_t r_es; // not used
+ uint16_t r_ds; // not used
+ register_t r_rip;
+ register_t r_cs;
+ register_t r_rflags;
+ register_t r_rsp;
+ register_t r_ss; // not used
+} reg;
+
+// convenient defs
+typedef struct mach_header_64 mach_header_64;
+typedef struct load_command load_command;
+typedef struct segment_command_64 segment_command_64;
+typedef struct thread_command thread_command;
+typedef struct dylib_command dylib_command;
+typedef struct symtab_command symtab_command;
+typedef struct nlist_64 nlist_64;
+#else
+#include <thread_db.h>
+#include "salibelf.h"
+#endif // __APPLE__
+
// data structures in this file mimic those of Solaris 8.0 - libproc's Pcontrol.h
#define BUF_SIZE (PATH_MAX + NAME_MAX + 1)
@@ -44,12 +98,12 @@
} lib_info;
// list of threads
-typedef struct thread_info {
- lwpid_t lwp_id;
- pthread_t pthread_id; // not used cores, always -1
+typedef struct sa_thread_info {
+ lwpid_t lwp_id; // same as pthread_t
+ pthread_t pthread_id; //
struct reg regs; // not for process, core uses for caching regset
- struct thread_info* next;
-} thread_info;
+ struct sa_thread_info* next;
+} sa_thread_info;
// list of virtual memory maps
typedef struct map_info {
@@ -91,6 +145,7 @@
// part of the class sharing workaround
map_info* class_share_maps;// class share maps in a linked list
map_info** map_array; // sorted (by vaddr) array of map_info pointers
+ char exec_path[4096]; // file name java
};
struct ps_prochandle {
@@ -100,12 +155,11 @@
lib_info* libs; // head of lib list
lib_info* lib_tail; // tail of lib list - to append at the end
int num_threads;
- thread_info* threads; // head of thread list
+ sa_thread_info* threads; // head of thread list
struct core_data* core; // data only used for core dumps, NULL for process
};
int pathmap_open(const char* name);
-
void print_debug(const char* format,...);
void print_error(const char* format,...);
bool is_debug();
@@ -122,10 +176,45 @@
lib_info* add_lib_info_fd(struct ps_prochandle* ph, const char* libname, int fd,
uintptr_t base);
-// adds a new thread to threads list, returns NULL on failure
-thread_info* add_thread_info(struct ps_prochandle* ph, pthread_t pthread_id, lwpid_t lwp_id);
-
+sa_thread_info* add_thread_info(struct ps_prochandle* ph, pthread_t pthread_id, lwpid_t lwp_id);
// a test for ELF signature without using libelf
+
+#ifdef __APPLE__
+// a test for Mach-O signature
+bool is_macho_file(int fd);
+// skip fat head to get image start offset of cpu_type_t
+// return false if any error happens, else value in offset.
+bool get_arch_off(int fd, cpu_type_t cputype, off_t *offset);
+#else
bool is_elf_file(int fd);
+#endif // __APPLE__
+
+lwpid_t get_lwp_id(struct ps_prochandle* ph, int index);
+bool set_lwp_id(struct ps_prochandle* ph, int index, lwpid_t lwpid);
+bool get_nth_lwp_regs(struct ps_prochandle* ph, int index, struct reg* regs);
+
+// ps_pglobal_lookup() looks up the symbol sym_name in the symbol table
+// of the load object object_name in the target process identified by ph.
+// It returns the symbol's value as an address in the target process in
+// *sym_addr.
+ps_err_e ps_pglobal_lookup(struct ps_prochandle *ph, const char *object_name,
+ const char *sym_name, psaddr_t *sym_addr);
+
+// read "size" bytes info "buf" from address "addr"
+ps_err_e ps_pread(struct ps_prochandle *ph, psaddr_t addr,
+ void *buf, size_t size);
+
+// write "size" bytes of data to debuggee at address "addr"
+ps_err_e ps_pwrite(struct ps_prochandle *ph, psaddr_t addr,
+ const void *buf, size_t size);
+
+// fill in ptrace_lwpinfo for lid
+ps_err_e ps_linfo(struct ps_prochandle *ph, lwpid_t lwp_id, void *linfo);
+
+// needed for when libthread_db is compiled with TD_DEBUG defined
+void ps_plog (const char *format, ...);
+
+// untility, tells the position in file
+off_t ltell(int fd);
#endif //_LIBPROC_IMPL_H_
--- a/hotspot/agent/src/os/bsd/ps_core.c Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/os/bsd/ps_core.c Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * 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
@@ -28,10 +28,11 @@
#include <string.h>
#include <stdlib.h>
#include <stddef.h>
-#include <elf.h>
-#include <link.h>
#include "libproc_impl.h"
-#include "salibelf.h"
+
+#ifdef __APPLE__
+#include "sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext.h"
+#endif
// This file has the libproc implementation to read core files.
// For live processes, refer to ps_proc.c. Portions of this is adapted
@@ -41,156 +42,158 @@
// ps_prochandle cleanup helper functions
// close all file descriptors
-static void close_elf_files(struct ps_prochandle* ph) {
- lib_info* lib = NULL;
+static void close_files(struct ps_prochandle* ph) {
+ lib_info* lib = NULL;
+ // close core file descriptor
+ if (ph->core->core_fd >= 0)
+ close(ph->core->core_fd);
- // close core file descriptor
- if (ph->core->core_fd >= 0)
- close(ph->core->core_fd);
+ // close exec file descriptor
+ if (ph->core->exec_fd >= 0)
+ close(ph->core->exec_fd);
- // close exec file descriptor
- if (ph->core->exec_fd >= 0)
- close(ph->core->exec_fd);
+ // close interp file descriptor
+ if (ph->core->interp_fd >= 0)
+ close(ph->core->interp_fd);
- // close interp file descriptor
- if (ph->core->interp_fd >= 0)
- close(ph->core->interp_fd);
-
- // close class share archive file
- if (ph->core->classes_jsa_fd >= 0)
- close(ph->core->classes_jsa_fd);
+ // close class share archive file
+ if (ph->core->classes_jsa_fd >= 0)
+ close(ph->core->classes_jsa_fd);
- // close all library file descriptors
- lib = ph->libs;
- while (lib) {
- int fd = lib->fd;
- if (fd >= 0 && fd != ph->core->exec_fd) close(fd);
- lib = lib->next;
- }
+ // close all library file descriptors
+ lib = ph->libs;
+ while (lib) {
+ int fd = lib->fd;
+ if (fd >= 0 && fd != ph->core->exec_fd) {
+ close(fd);
+ }
+ lib = lib->next;
+ }
}
// clean all map_info stuff
static void destroy_map_info(struct ps_prochandle* ph) {
map_info* map = ph->core->maps;
while (map) {
- map_info* next = map->next;
- free(map);
- map = next;
+ map_info* next = map->next;
+ free(map);
+ map = next;
}
if (ph->core->map_array) {
- free(ph->core->map_array);
+ free(ph->core->map_array);
}
// Part of the class sharing workaround
map = ph->core->class_share_maps;
while (map) {
- map_info* next = map->next;
- free(map);
- map = next;
+ map_info* next = map->next;
+ free(map);
+ map = next;
}
}
// ps_prochandle operations
static void core_release(struct ps_prochandle* ph) {
- if (ph->core) {
- close_elf_files(ph);
- destroy_map_info(ph);
- free(ph->core);
- }
+ if (ph->core) {
+ close_files(ph);
+ destroy_map_info(ph);
+ free(ph->core);
+ }
}
static map_info* allocate_init_map(int fd, off_t offset, uintptr_t vaddr, size_t memsz) {
- map_info* map;
- if ( (map = (map_info*) calloc(1, sizeof(map_info))) == NULL) {
- print_debug("can't allocate memory for map_info\n");
- return NULL;
- }
+ map_info* map;
+ if ( (map = (map_info*) calloc(1, sizeof(map_info))) == NULL) {
+ print_debug("can't allocate memory for map_info\n");
+ return NULL;
+ }
- // initialize map
- map->fd = fd;
- map->offset = offset;
- map->vaddr = vaddr;
- map->memsz = memsz;
- return map;
+ // initialize map
+ map->fd = fd;
+ map->offset = offset;
+ map->vaddr = vaddr;
+ map->memsz = memsz;
+ return map;
}
// add map info with given fd, offset, vaddr and memsz
static map_info* add_map_info(struct ps_prochandle* ph, int fd, off_t offset,
uintptr_t vaddr, size_t memsz) {
- map_info* map;
- if ((map = allocate_init_map(fd, offset, vaddr, memsz)) == NULL) {
- return NULL;
- }
+ map_info* map;
+ if ((map = allocate_init_map(fd, offset, vaddr, memsz)) == NULL) {
+ return NULL;
+ }
- // add this to map list
- map->next = ph->core->maps;
- ph->core->maps = map;
- ph->core->num_maps++;
+ // add this to map list
+ map->next = ph->core->maps;
+ ph->core->maps = map;
+ ph->core->num_maps++;
- return map;
+ return map;
}
// Part of the class sharing workaround
static map_info* add_class_share_map_info(struct ps_prochandle* ph, off_t offset,
uintptr_t vaddr, size_t memsz) {
- map_info* map;
- if ((map = allocate_init_map(ph->core->classes_jsa_fd,
- offset, vaddr, memsz)) == NULL) {
- return NULL;
- }
+ map_info* map;
+ if ((map = allocate_init_map(ph->core->classes_jsa_fd,
+ offset, vaddr, memsz)) == NULL) {
+ return NULL;
+ }
- map->next = ph->core->class_share_maps;
- ph->core->class_share_maps = map;
- return map;
+ map->next = ph->core->class_share_maps;
+ ph->core->class_share_maps = map;
+ return map;
}
// Return the map_info for the given virtual address. We keep a sorted
// array of pointers in ph->map_array, so we can binary search.
static map_info* core_lookup(struct ps_prochandle *ph, uintptr_t addr)
{
- int mid, lo = 0, hi = ph->core->num_maps - 1;
- map_info *mp;
+ int mid, lo = 0, hi = ph->core->num_maps - 1;
+ map_info *mp;
- while (hi - lo > 1) {
- mid = (lo + hi) / 2;
- if (addr >= ph->core->map_array[mid]->vaddr)
- lo = mid;
- else
- hi = mid;
- }
+ while (hi - lo > 1) {
+ mid = (lo + hi) / 2;
+ if (addr >= ph->core->map_array[mid]->vaddr) {
+ lo = mid;
+ } else {
+ hi = mid;
+ }
+ }
- if (addr < ph->core->map_array[hi]->vaddr)
- mp = ph->core->map_array[lo];
- else
- mp = ph->core->map_array[hi];
+ if (addr < ph->core->map_array[hi]->vaddr) {
+ mp = ph->core->map_array[lo];
+ } else {
+ mp = ph->core->map_array[hi];
+ }
- if (addr >= mp->vaddr && addr < mp->vaddr + mp->memsz)
- return (mp);
+ if (addr >= mp->vaddr && addr < mp->vaddr + mp->memsz) {
+ return (mp);
+ }
- // Part of the class sharing workaround
- // Unfortunately, we have no way of detecting -Xshare state.
- // Check out the share maps atlast, if we don't find anywhere.
- // This is done this way so to avoid reading share pages
- // ahead of other normal maps. For eg. with -Xshare:off we don't
- // want to prefer class sharing data to data from core.
- mp = ph->core->class_share_maps;
- if (mp) {
- print_debug("can't locate map_info at 0x%lx, trying class share maps\n",
- addr);
- }
- while (mp) {
- if (addr >= mp->vaddr && addr < mp->vaddr + mp->memsz) {
- print_debug("located map_info at 0x%lx from class share maps\n",
- addr);
- return (mp);
- }
- mp = mp->next;
- }
+ // Part of the class sharing workaround
+ // Unfortunately, we have no way of detecting -Xshare state.
+ // Check out the share maps atlast, if we don't find anywhere.
+ // This is done this way so to avoid reading share pages
+ // ahead of other normal maps. For eg. with -Xshare:off we don't
+ // want to prefer class sharing data to data from core.
+ mp = ph->core->class_share_maps;
+ if (mp) {
+ print_debug("can't locate map_info at 0x%lx, trying class share maps\n", addr);
+ }
+ while (mp) {
+ if (addr >= mp->vaddr && addr < mp->vaddr + mp->memsz) {
+ print_debug("located map_info at 0x%lx from class share maps\n", addr);
+ return (mp);
+ }
+ mp = mp->next;
+ }
- print_debug("can't locate map_info at 0x%lx\n", addr);
- return (NULL);
+ print_debug("can't locate map_info at 0x%lx\n", addr);
+ return (NULL);
}
//---------------------------------------------------------------
@@ -239,157 +242,171 @@
};
static bool read_jboolean(struct ps_prochandle* ph, uintptr_t addr, jboolean* pvalue) {
- jboolean i;
- if (ps_pread(ph, (psaddr_t) addr, &i, sizeof(i)) == PS_OK) {
- *pvalue = i;
- return true;
- } else {
- return false;
- }
+ jboolean i;
+ if (ps_pread(ph, (psaddr_t) addr, &i, sizeof(i)) == PS_OK) {
+ *pvalue = i;
+ return true;
+ } else {
+ return false;
+ }
}
static bool read_pointer(struct ps_prochandle* ph, uintptr_t addr, uintptr_t* pvalue) {
- uintptr_t uip;
- if (ps_pread(ph, (psaddr_t) addr, &uip, sizeof(uip)) == PS_OK) {
- *pvalue = uip;
- return true;
- } else {
- return false;
- }
+ uintptr_t uip;
+ if (ps_pread(ph, (psaddr_t) addr, (char *)&uip, sizeof(uip)) == PS_OK) {
+ *pvalue = uip;
+ return true;
+ } else {
+ return false;
+ }
}
// used to read strings from debuggee
static bool read_string(struct ps_prochandle* ph, uintptr_t addr, char* buf, size_t size) {
- size_t i = 0;
- char c = ' ';
+ size_t i = 0;
+ char c = ' ';
- while (c != '\0') {
- if (ps_pread(ph, (psaddr_t) addr, &c, sizeof(char)) != PS_OK)
- return false;
- if (i < size - 1)
- buf[i] = c;
- else // smaller buffer
- return false;
- i++; addr++;
- }
-
- buf[i] = '\0';
- return true;
+ while (c != '\0') {
+ if (ps_pread(ph, (psaddr_t) addr, &c, sizeof(char)) != PS_OK) {
+ return false;
+ }
+ if (i < size - 1) {
+ buf[i] = c;
+ } else {
+ // smaller buffer
+ return false;
+ }
+ i++; addr++;
+ }
+ buf[i] = '\0';
+ return true;
}
+#ifdef __APPLE__
+#define USE_SHARED_SPACES_SYM "_UseSharedSpaces"
+// mangled name of Arguments::SharedArchivePath
+#define SHARED_ARCHIVE_PATH_SYM "_ZN9Arguments17SharedArchivePathE"
+#else
#define USE_SHARED_SPACES_SYM "UseSharedSpaces"
// mangled name of Arguments::SharedArchivePath
-#define SHARED_ARCHIVE_PATH_SYM "_ZN9Arguments17SharedArchivePathE"
+#define SHARED_ARCHIVE_PATH_SYM "__ZN9Arguments17SharedArchivePathE"
+#endif // __APPLE_
static bool init_classsharing_workaround(struct ps_prochandle* ph) {
- lib_info* lib = ph->libs;
- while (lib != NULL) {
- // we are iterating over shared objects from the core dump. look for
- // libjvm[_g].so.
- const char *jvm_name = 0;
- if ((jvm_name = strstr(lib->name, "/libjvm.so")) != 0 ||
- (jvm_name = strstr(lib->name, "/libjvm_g.so")) != 0) {
- char classes_jsa[PATH_MAX];
- struct FileMapHeader header;
- size_t n = 0;
- int fd = -1, m = 0;
- uintptr_t base = 0, useSharedSpacesAddr = 0;
- uintptr_t sharedArchivePathAddrAddr = 0, sharedArchivePathAddr = 0;
- jboolean useSharedSpaces = 0;
-
- memset(classes_jsa, 0, sizeof(classes_jsa));
- jvm_name = lib->name;
- useSharedSpacesAddr = lookup_symbol(ph, jvm_name, USE_SHARED_SPACES_SYM);
- if (useSharedSpacesAddr == 0) {
- print_debug("can't lookup 'UseSharedSpaces' flag\n");
- return false;
- }
+ int m;
+ size_t n;
+ lib_info* lib = ph->libs;
+ while (lib != NULL) {
+ // we are iterating over shared objects from the core dump. look for
+ // libjvm[_g].so.
+ const char *jvm_name = 0;
+#ifdef __APPLE__
+ if ((jvm_name = strstr(lib->name, "/libjvm.dylib")) != 0 ||
+ (jvm_name = strstr(lib->name, "/libjvm_g.dylib")) != 0)
+#else
+ if ((jvm_name = strstr(lib->name, "/libjvm.so")) != 0 ||
+ (jvm_name = strstr(lib->name, "/libjvm_g.so")) != 0)
+#endif // __APPLE__
+ {
+ char classes_jsa[PATH_MAX];
+ struct FileMapHeader header;
+ int fd = -1;
+ uintptr_t base = 0, useSharedSpacesAddr = 0;
+ uintptr_t sharedArchivePathAddrAddr = 0, sharedArchivePathAddr = 0;
+ jboolean useSharedSpaces = 0;
- // Hotspot vm types are not exported to build this library. So
- // using equivalent type jboolean to read the value of
- // UseSharedSpaces which is same as hotspot type "bool".
- if (read_jboolean(ph, useSharedSpacesAddr, &useSharedSpaces) != true) {
- print_debug("can't read the value of 'UseSharedSpaces' flag\n");
- return false;
- }
+ memset(classes_jsa, 0, sizeof(classes_jsa));
+ jvm_name = lib->name;
+ useSharedSpacesAddr = lookup_symbol(ph, jvm_name, USE_SHARED_SPACES_SYM);
+ if (useSharedSpacesAddr == 0) {
+ print_debug("can't lookup 'UseSharedSpaces' flag\n");
+ return false;
+ }
- if ((int)useSharedSpaces == 0) {
- print_debug("UseSharedSpaces is false, assuming -Xshare:off!\n");
- return true;
- }
+ // Hotspot vm types are not exported to build this library. So
+ // using equivalent type jboolean to read the value of
+ // UseSharedSpaces which is same as hotspot type "bool".
+ if (read_jboolean(ph, useSharedSpacesAddr, &useSharedSpaces) != true) {
+ print_debug("can't read the value of 'UseSharedSpaces' flag\n");
+ return false;
+ }
- sharedArchivePathAddrAddr = lookup_symbol(ph, jvm_name, SHARED_ARCHIVE_PATH_SYM);
- if (sharedArchivePathAddrAddr == 0) {
- print_debug("can't lookup shared archive path symbol\n");
- return false;
- }
+ if ((int)useSharedSpaces == 0) {
+ print_debug("UseSharedSpaces is false, assuming -Xshare:off!\n");
+ return true;
+ }
- if (read_pointer(ph, sharedArchivePathAddrAddr, &sharedArchivePathAddr) != true) {
- print_debug("can't read shared archive path pointer\n");
- return false;
- }
+ sharedArchivePathAddrAddr = lookup_symbol(ph, jvm_name, SHARED_ARCHIVE_PATH_SYM);
+ if (sharedArchivePathAddrAddr == 0) {
+ print_debug("can't lookup shared archive path symbol\n");
+ return false;
+ }
- if (read_string(ph, sharedArchivePathAddr, classes_jsa, sizeof(classes_jsa)) != true) {
- print_debug("can't read shared archive path value\n");
- return false;
- }
+ if (read_pointer(ph, sharedArchivePathAddrAddr, &sharedArchivePathAddr) != true) {
+ print_debug("can't read shared archive path pointer\n");
+ return false;
+ }
- print_debug("looking for %s\n", classes_jsa);
- // open the class sharing archive file
- fd = pathmap_open(classes_jsa);
- if (fd < 0) {
- print_debug("can't open %s!\n", classes_jsa);
- ph->core->classes_jsa_fd = -1;
- return false;
- } else {
- print_debug("opened %s\n", classes_jsa);
- }
+ if (read_string(ph, sharedArchivePathAddr, classes_jsa, sizeof(classes_jsa)) != true) {
+ print_debug("can't read shared archive path value\n");
+ return false;
+ }
- // read FileMapHeader from the file
- memset(&header, 0, sizeof(struct FileMapHeader));
- if ((n = read(fd, &header, sizeof(struct FileMapHeader)))
- != sizeof(struct FileMapHeader)) {
- print_debug("can't read shared archive file map header from %s\n", classes_jsa);
- close(fd);
- return false;
- }
+ print_debug("looking for %s\n", classes_jsa);
+ // open the class sharing archive file
+ fd = pathmap_open(classes_jsa);
+ if (fd < 0) {
+ print_debug("can't open %s!\n", classes_jsa);
+ ph->core->classes_jsa_fd = -1;
+ return false;
+ } else {
+ print_debug("opened %s\n", classes_jsa);
+ }
- // check file magic
- if (header._magic != 0xf00baba2) {
- print_debug("%s has bad shared archive file magic number 0x%x, expecing 0xf00baba2\n",
- classes_jsa, header._magic);
- close(fd);
- return false;
- }
+ // read FileMapHeader from the file
+ memset(&header, 0, sizeof(struct FileMapHeader));
+ if ((n = read(fd, &header, sizeof(struct FileMapHeader)))
+ != sizeof(struct FileMapHeader)) {
+ print_debug("can't read shared archive file map header from %s\n", classes_jsa);
+ close(fd);
+ return false;
+ }
- // check version
- if (header._version != CURRENT_ARCHIVE_VERSION) {
- print_debug("%s has wrong shared archive file version %d, expecting %d\n",
- classes_jsa, header._version, CURRENT_ARCHIVE_VERSION);
- close(fd);
- return false;
- }
+ // check file magic
+ if (header._magic != 0xf00baba2) {
+ print_debug("%s has bad shared archive file magic number 0x%x, expecing 0xf00baba2\n",
+ classes_jsa, header._magic);
+ close(fd);
+ return false;
+ }
+
+ // check version
+ if (header._version != CURRENT_ARCHIVE_VERSION) {
+ print_debug("%s has wrong shared archive file version %d, expecting %d\n",
+ classes_jsa, header._version, CURRENT_ARCHIVE_VERSION);
+ close(fd);
+ return false;
+ }
- ph->core->classes_jsa_fd = fd;
- // add read-only maps from classes[_g].jsa to the list of maps
- for (m = 0; m < NUM_SHARED_MAPS; m++) {
- if (header._space[m]._read_only) {
- base = (uintptr_t) header._space[m]._base;
- // no need to worry about the fractional pages at-the-end.
- // possible fractional pages are handled by core_read_data.
- add_class_share_map_info(ph, (off_t) header._space[m]._file_offset,
- base, (size_t) header._space[m]._used);
- print_debug("added a share archive map at 0x%lx\n", base);
- }
- }
- return true;
+ ph->core->classes_jsa_fd = fd;
+ // add read-only maps from classes[_g].jsa to the list of maps
+ for (m = 0; m < NUM_SHARED_MAPS; m++) {
+ if (header._space[m]._read_only) {
+ base = (uintptr_t) header._space[m]._base;
+ // no need to worry about the fractional pages at-the-end.
+ // possible fractional pages are handled by core_read_data.
+ add_class_share_map_info(ph, (off_t) header._space[m]._file_offset,
+ base, (size_t) header._space[m]._used);
+ print_debug("added a share archive map at 0x%lx\n", base);
+ }
}
- lib = lib->next;
- }
- return true;
+ return true;
+ }
+ lib = lib->next;
+ }
+ return true;
}
-
//---------------------------------------------------------------------------
// functions to handle map_info
@@ -397,54 +414,57 @@
// callback for sorting the array of map_info pointers.
static int core_cmp_mapping(const void *lhsp, const void *rhsp)
{
- const map_info *lhs = *((const map_info **)lhsp);
- const map_info *rhs = *((const map_info **)rhsp);
+ const map_info *lhs = *((const map_info **)lhsp);
+ const map_info *rhs = *((const map_info **)rhsp);
- if (lhs->vaddr == rhs->vaddr)
- return (0);
+ if (lhs->vaddr == rhs->vaddr) {
+ return (0);
+ }
- return (lhs->vaddr < rhs->vaddr ? -1 : 1);
+ return (lhs->vaddr < rhs->vaddr ? -1 : 1);
}
// we sort map_info by starting virtual address so that we can do
// binary search to read from an address.
static bool sort_map_array(struct ps_prochandle* ph) {
- size_t num_maps = ph->core->num_maps;
- map_info* map = ph->core->maps;
- int i = 0;
+ size_t num_maps = ph->core->num_maps;
+ map_info* map = ph->core->maps;
+ int i = 0;
- // allocate map_array
- map_info** array;
- if ( (array = (map_info**) malloc(sizeof(map_info*) * num_maps)) == NULL) {
- print_debug("can't allocate memory for map array\n");
- return false;
- }
+ // allocate map_array
+ map_info** array;
+ if ( (array = (map_info**) malloc(sizeof(map_info*) * num_maps)) == NULL) {
+ print_debug("can't allocate memory for map array\n");
+ return false;
+ }
- // add maps to array
- while (map) {
- array[i] = map;
- i++;
- map = map->next;
- }
+ // add maps to array
+ while (map) {
+ array[i] = map;
+ i++;
+ map = map->next;
+ }
- // sort is called twice. If this is second time, clear map array
- if (ph->core->map_array) free(ph->core->map_array);
- ph->core->map_array = array;
- // sort the map_info array by base virtual address.
- qsort(ph->core->map_array, ph->core->num_maps, sizeof (map_info*),
- core_cmp_mapping);
+ // sort is called twice. If this is second time, clear map array
+ if (ph->core->map_array) {
+ free(ph->core->map_array);
+ }
+ ph->core->map_array = array;
+ // sort the map_info array by base virtual address.
+ qsort(ph->core->map_array, ph->core->num_maps, sizeof (map_info*),
+ core_cmp_mapping);
- // print map
- if (is_debug()) {
- int j = 0;
- print_debug("---- sorted virtual address map ----\n");
- for (j = 0; j < ph->core->num_maps; j++) {
- print_debug("base = 0x%lx\tsize = %d\n", ph->core->map_array[j]->vaddr,
- ph->core->map_array[j]->memsz);
- }
- }
+ // print map
+ if (is_debug()) {
+ int j = 0;
+ print_debug("---- sorted virtual address map ----\n");
+ for (j = 0; j < ph->core->num_maps; j++) {
+ print_debug("base = 0x%lx\tsize = %d\n", ph->core->map_array[j]->vaddr,
+ ph->core->map_array[j]->memsz);
+ }
+ }
- return true;
+ return true;
}
#ifndef MIN
@@ -461,16 +481,18 @@
off_t off;
int fd;
- if (mp == NULL)
+ if (mp == NULL) {
break; /* No mapping for this address */
+ }
fd = mp->fd;
mapoff = addr - mp->vaddr;
len = MIN(resid, mp->memsz - mapoff);
off = mp->offset + mapoff;
- if ((len = pread(fd, buf, len, off)) <= 0)
+ if ((len = pread(fd, buf, len, off)) <= 0) {
break;
+ }
resid -= len;
addr += len;
@@ -507,8 +529,8 @@
static bool core_get_lwp_regs(struct ps_prochandle* ph, lwpid_t lwp_id,
struct reg* regs) {
- // for core we have cached the lwp regs from NOTE section
- thread_info* thr = ph->threads;
+ // for core we have cached the lwp regs after segment parsed
+ sa_thread_info* thr = ph->threads;
while (thr) {
if (thr->lwp_id == lwp_id) {
memcpy(regs, &thr->regs, sizeof(struct reg));
@@ -519,7 +541,7 @@
return false;
}
-static bool core_get_lwp_info(struct ps_prochandle *ph, lwpid_t lwp_id, void *linfo) {
+static bool core_get_lwp_info(struct ps_prochandle *ph, lwpid_t id, void *info) {
print_debug("core_get_lwp_info not implemented\n");
return false;
}
@@ -532,12 +554,451 @@
.get_lwp_info= core_get_lwp_info
};
-// read regs and create thread from NT_PRSTATUS entries from core file
+// from this point, mainly two blocks divided by def __APPLE__
+// one for Macosx, the other for regular Bsd
+
+#ifdef __APPLE__
+
+void print_thread(sa_thread_info *threadinfo) {
+ print_debug("thread added: %d\n", threadinfo->lwp_id);
+ print_debug("registers:\n");
+ print_debug(" r_r15: 0x%" PRIx64 "\n", threadinfo->regs.r_r15);
+ print_debug(" r_r14: 0x%" PRIx64 "\n", threadinfo->regs.r_r14);
+ print_debug(" r_r13: 0x%" PRIx64 "\n", threadinfo->regs.r_r13);
+ print_debug(" r_r12: 0x%" PRIx64 "\n", threadinfo->regs.r_r12);
+ print_debug(" r_r11: 0x%" PRIx64 "\n", threadinfo->regs.r_r11);
+ print_debug(" r_r10: 0x%" PRIx64 "\n", threadinfo->regs.r_r10);
+ print_debug(" r_r9: 0x%" PRIx64 "\n", threadinfo->regs.r_r9);
+ print_debug(" r_r8: 0x%" PRIx64 "\n", threadinfo->regs.r_r8);
+ print_debug(" r_rdi: 0x%" PRIx64 "\n", threadinfo->regs.r_rdi);
+ print_debug(" r_rsi: 0x%" PRIx64 "\n", threadinfo->regs.r_rsi);
+ print_debug(" r_rbp: 0x%" PRIx64 "\n", threadinfo->regs.r_rbp);
+ print_debug(" r_rbx: 0x%" PRIx64 "\n", threadinfo->regs.r_rbx);
+ print_debug(" r_rdx: 0x%" PRIx64 "\n", threadinfo->regs.r_rdx);
+ print_debug(" r_rcx: 0x%" PRIx64 "\n", threadinfo->regs.r_rcx);
+ print_debug(" r_rax: 0x%" PRIx64 "\n", threadinfo->regs.r_rax);
+ print_debug(" r_fs: 0x%" PRIx32 "\n", threadinfo->regs.r_fs);
+ print_debug(" r_gs: 0x%" PRIx32 "\n", threadinfo->regs.r_gs);
+ print_debug(" r_rip 0x%" PRIx64 "\n", threadinfo->regs.r_rip);
+ print_debug(" r_cs: 0x%" PRIx64 "\n", threadinfo->regs.r_cs);
+ print_debug(" r_rsp: 0x%" PRIx64 "\n", threadinfo->regs.r_rsp);
+ print_debug(" r_rflags: 0x%" PRIx64 "\n", threadinfo->regs.r_rflags);
+}
+
+// read all segments64 commands from core file
+// read all thread commands from core file
+static bool read_core_segments(struct ps_prochandle* ph) {
+ int i = 0;
+ int num_threads = 0;
+ int fd = ph->core->core_fd;
+ off_t offset = 0;
+ mach_header_64 fhead;
+ load_command lcmd;
+ segment_command_64 segcmd;
+ // thread_command thrcmd;
+
+ lseek(fd, offset, SEEK_SET);
+ if(read(fd, (void *)&fhead, sizeof(mach_header_64)) != sizeof(mach_header_64)) {
+ goto err;
+ }
+ print_debug("total commands: %d\n", fhead.ncmds);
+ offset += sizeof(mach_header_64);
+ for (i = 0; i < fhead.ncmds; i++) {
+ lseek(fd, offset, SEEK_SET);
+ if (read(fd, (void *)&lcmd, sizeof(load_command)) != sizeof(load_command)) {
+ goto err;
+ }
+ offset += lcmd.cmdsize; // next command position
+ if (lcmd.cmd == LC_SEGMENT_64) {
+ lseek(fd, -sizeof(load_command), SEEK_CUR);
+ if (read(fd, (void *)&segcmd, sizeof(segment_command_64)) != sizeof(segment_command_64)) {
+ print_debug("failed to read LC_SEGMENT_64 i = %d!\n", i);
+ goto err;
+ }
+ if (add_map_info(ph, fd, segcmd.fileoff, segcmd.vmaddr, segcmd.vmsize) == NULL) {
+ print_debug("Failed to add map_info at i = %d\n", i);
+ goto err;
+ }
+ print_debug("segment added: %" PRIu64 " 0x%" PRIx64 " %d\n",
+ segcmd.fileoff, segcmd.vmaddr, segcmd.vmsize);
+ } else if (lcmd.cmd == LC_THREAD || lcmd.cmd == LC_UNIXTHREAD) {
+ typedef struct thread_fc {
+ uint32_t flavor;
+ uint32_t count;
+ } thread_fc;
+ thread_fc fc;
+ uint32_t size = sizeof(load_command);
+ while (size < lcmd.cmdsize) {
+ if (read(fd, (void *)&fc, sizeof(thread_fc)) != sizeof(thread_fc)) {
+ printf("Reading flavor, count failed.\n");
+ goto err;
+ }
+ size += sizeof(thread_fc);
+ if (fc.flavor == x86_THREAD_STATE) {
+ x86_thread_state_t thrstate;
+ if (read(fd, (void *)&thrstate, sizeof(x86_thread_state_t)) != sizeof(x86_thread_state_t)) {
+ printf("Reading flavor, count failed.\n");
+ goto err;
+ }
+ size += sizeof(x86_thread_state_t);
+ // create thread info list, update lwp_id later
+ sa_thread_info* newthr = add_thread_info(ph, (pthread_t) -1, (lwpid_t) num_threads++);
+ if (newthr == NULL) {
+ printf("create thread_info failed\n");
+ goto err;
+ }
+
+ // note __DARWIN_UNIX03 depengs on other definitions
+#if __DARWIN_UNIX03
+#define get_register_v(regst, regname) \
+ regst.uts.ts64.__##regname
+#else
+#define get_register_v(regst, regname) \
+ regst.uts.ts64.##regname
+#endif // __DARWIN_UNIX03
+ newthr->regs.r_rax = get_register_v(thrstate, rax);
+ newthr->regs.r_rbx = get_register_v(thrstate, rbx);
+ newthr->regs.r_rcx = get_register_v(thrstate, rcx);
+ newthr->regs.r_rdx = get_register_v(thrstate, rdx);
+ newthr->regs.r_rdi = get_register_v(thrstate, rdi);
+ newthr->regs.r_rsi = get_register_v(thrstate, rsi);
+ newthr->regs.r_rbp = get_register_v(thrstate, rbp);
+ newthr->regs.r_rsp = get_register_v(thrstate, rsp);
+ newthr->regs.r_r8 = get_register_v(thrstate, r8);
+ newthr->regs.r_r9 = get_register_v(thrstate, r9);
+ newthr->regs.r_r10 = get_register_v(thrstate, r10);
+ newthr->regs.r_r11 = get_register_v(thrstate, r11);
+ newthr->regs.r_r12 = get_register_v(thrstate, r12);
+ newthr->regs.r_r13 = get_register_v(thrstate, r13);
+ newthr->regs.r_r14 = get_register_v(thrstate, r14);
+ newthr->regs.r_r15 = get_register_v(thrstate, r15);
+ newthr->regs.r_rip = get_register_v(thrstate, rip);
+ newthr->regs.r_rflags = get_register_v(thrstate, rflags);
+ newthr->regs.r_cs = get_register_v(thrstate, cs);
+ newthr->regs.r_fs = get_register_v(thrstate, fs);
+ newthr->regs.r_gs = get_register_v(thrstate, gs);
+ print_thread(newthr);
+ } else if (fc.flavor == x86_FLOAT_STATE) {
+ x86_float_state_t flstate;
+ if (read(fd, (void *)&flstate, sizeof(x86_float_state_t)) != sizeof(x86_float_state_t)) {
+ print_debug("Reading flavor, count failed.\n");
+ goto err;
+ }
+ size += sizeof(x86_float_state_t);
+ } else if (fc.flavor == x86_EXCEPTION_STATE) {
+ x86_exception_state_t excpstate;
+ if (read(fd, (void *)&excpstate, sizeof(x86_exception_state_t)) != sizeof(x86_exception_state_t)) {
+ printf("Reading flavor, count failed.\n");
+ goto err;
+ }
+ size += sizeof(x86_exception_state_t);
+ }
+ }
+ }
+ }
+ return true;
+err:
+ return false;
+}
+
+/**local function **/
+bool exists(const char *fname)
+{
+ int fd;
+ if ((fd = open(fname, O_RDONLY)) > 0) {
+ close(fd);
+ return true;
+ }
+ return false;
+}
+
+// we check: 1. lib
+// 2. lib/server
+// 3. jre/lib
+// 4. jre/lib/server
+// from: 1. exe path
+// 2. JAVA_HOME
+// 3. DYLD_LIBRARY_PATH
+static bool get_real_path(struct ps_prochandle* ph, char *rpath) {
+ /** check if they exist in JAVA ***/
+ char* execname = ph->core->exec_path;
+ char filepath[4096];
+ char* filename = strrchr(rpath, '/'); // like /libjvm.dylib
+ if (filename == NULL) {
+ return false;
+ }
+
+ char* posbin = strstr(execname, "/bin/java");
+ if (posbin != NULL) {
+ memcpy(filepath, execname, posbin - execname); // not include trailing '/'
+ filepath[posbin - execname] = '\0';
+ } else {
+ char* java_home = getenv("JAVA_HOME");
+ if (java_home != NULL) {
+ strcpy(filepath, java_home);
+ } else {
+ char* dyldpath = getenv("DYLD_LIBRARY_PATH");
+ char* dypath = strtok(dyldpath, ":");
+ while (dypath != NULL) {
+ strcpy(filepath, dypath);
+ strcat(filepath, filename);
+ if (exists(filepath)) {
+ strcpy(rpath, filepath);
+ return true;
+ }
+ dypath = strtok(dyldpath, ":");
+ }
+ // not found
+ return false;
+ }
+ }
+ // for exec and java_home, jdkpath now is filepath
+ size_t filepath_base_size = strlen(filepath);
+
+ // first try /lib/ and /lib/server
+ strcat(filepath, "/lib");
+ strcat(filepath, filename);
+ if (exists(filepath)) {
+ strcpy(rpath, filepath);
+ return true;
+ }
+ char* pos = strstr(filepath, filename); // like /libjvm.dylib
+ *pos = '\0';
+ strcat(filepath, "/server");
+ strcat(filepath, filename);
+ if (exists(filepath)) {
+ strcpy(rpath, filepath);
+ return true;
+ }
+
+ // then try /jre/lib/ and /jre/lib/server
+ filepath[filepath_base_size] = '\0';
+ strcat(filepath, "/jre/lib");
+ strcat(filepath, filename);
+ if (exists(filepath)) {
+ strcpy(rpath, filepath);
+ return true;
+ }
+ pos = strstr(filepath, filename);
+ *pos = '\0';
+ strcat(filepath, "/server");
+ strcat(filepath, filename);
+ if (exists(filepath)) {
+ strcpy(rpath, filepath);
+ return true;
+ }
+
+ return false;
+}
+
+static bool read_shared_lib_info(struct ps_prochandle* ph) {
+ static int pagesize = 0;
+ int fd = ph->core->core_fd;
+ int i = 0, j;
+ uint32_t v;
+ mach_header_64 header; // used to check if a file header in segment
+ load_command lcmd;
+ dylib_command dylibcmd;
+
+ char name[BUF_SIZE]; // use to store name
+
+ if (pagesize == 0) {
+ pagesize = getpagesize();
+ print_debug("page size is %d\n", pagesize);
+ }
+ for (j = 0; j < ph->core->num_maps; j++) {
+ map_info *iter = ph->core->map_array[j]; // head
+ off_t fpos = iter->offset;
+ if (iter->fd != fd) {
+ // only search core file!
+ continue;
+ }
+ print_debug("map_info %d: vmaddr = 0x%016" PRIx64 " fileoff = %" PRIu64 " vmsize = %" PRIu64 "\n",
+ j, iter->vaddr, iter->offset, iter->memsz);
+ lseek(fd, fpos, SEEK_SET);
+ // we assume .dylib loaded at segment address --- which is true for JVM libraries
+ // multiple files may be loaded in one segment.
+ // if first word is not a magic word, means this segment does not contain lib file.
+ if (read(fd, (void *)&v, sizeof(uint32_t)) == sizeof(uint32_t)) {
+ if (v != MH_MAGIC_64) {
+ continue;
+ }
+ } else {
+ // may be encountered last map, which is not readable
+ continue;
+ }
+ while (ltell(fd) - iter->offset < iter->memsz) {
+ lseek(fd, fpos, SEEK_SET);
+ if (read(fd, (void *)&v, sizeof(uint32_t)) != sizeof(uint32_t)) {
+ break;
+ }
+ if (v != MH_MAGIC_64) {
+ fpos = (ltell(fd) + pagesize -1)/pagesize * pagesize;
+ continue;
+ }
+ lseek(fd, -sizeof(uint32_t), SEEK_CUR);
+ // this is the file begining to core file.
+ if (read(fd, (void *)&header, sizeof(mach_header_64)) != sizeof(mach_header_64)) {
+ goto err;
+ }
+ fpos = ltell(fd);
+
+ // found a mach-o file in this segment
+ for (i = 0; i < header.ncmds; i++) {
+ // read commands in this "file"
+ // LC_ID_DYLIB is the file itself for a .dylib
+ lseek(fd, fpos, SEEK_SET);
+ if (read(fd, (void *)&lcmd, sizeof(load_command)) != sizeof(load_command)) {
+ return false; // error
+ }
+ fpos += lcmd.cmdsize; // next command position
+ // make sure still within seg size.
+ if (fpos - lcmd.cmdsize - iter->offset > iter->memsz) {
+ print_debug("Warning: out of segement limit: %ld \n", fpos - lcmd.cmdsize - iter->offset);
+ break; // no need to iterate all commands
+ }
+ if (lcmd.cmd == LC_ID_DYLIB) {
+ lseek(fd, -sizeof(load_command), SEEK_CUR);
+ if (read(fd, (void *)&dylibcmd, sizeof(dylib_command)) != sizeof(dylib_command)) {
+ return false;
+ }
+ /**** name stored at dylib_command.dylib.name.offset, is a C string */
+ lseek(fd, dylibcmd.dylib.name.offset - sizeof(dylib_command), SEEK_CUR);
+ int j = 0;
+ while (j < BUF_SIZE) {
+ read(fd, (void *)(name + j), sizeof(char));
+ if (name[j] == '\0') break;
+ j++;
+ }
+ print_debug("%s\n", name);
+ // changed name from @rpath/xxxx.dylib to real path
+ if (strrchr(name, '@')) {
+ get_real_path(ph, name);
+ print_debug("get_real_path returned: %s\n", name);
+ }
+ add_lib_info(ph, name, iter->vaddr);
+ break;
+ }
+ }
+ // done with the file, advanced to next page to search more files
+ fpos = (ltell(fd) + pagesize - 1) / pagesize * pagesize;
+ }
+ }
+ return true;
+err:
+ return false;
+}
+
+bool read_macho64_header(int fd, mach_header_64* core_header) {
+ bool is_macho = false;
+ if (fd < 0) return false;
+ off_t pos = ltell(fd);
+ lseek(fd, 0, SEEK_SET);
+ if (read(fd, (void *)core_header, sizeof(mach_header_64)) != sizeof(mach_header_64)) {
+ is_macho = false;
+ } else {
+ is_macho = (core_header->magic == MH_MAGIC_64 || core_header->magic == MH_CIGAM_64);
+ }
+ lseek(fd, pos, SEEK_SET);
+ return is_macho;
+}
+
+// the one and only one exposed stuff from this file
+struct ps_prochandle* Pgrab_core(const char* exec_file, const char* core_file) {
+ mach_header_64 core_header;
+ mach_header_64 exec_header;
+
+ struct ps_prochandle* ph = (struct ps_prochandle*) calloc(1, sizeof(struct ps_prochandle));
+ if (ph == NULL) {
+ print_debug("cant allocate ps_prochandle\n");
+ return NULL;
+ }
+
+ if ((ph->core = (struct core_data*) calloc(1, sizeof(struct core_data))) == NULL) {
+ free(ph);
+ print_debug("can't allocate ps_prochandle\n");
+ return NULL;
+ }
+
+ // initialize ph
+ ph->ops = &core_ops;
+ ph->core->core_fd = -1;
+ ph->core->exec_fd = -1;
+ ph->core->interp_fd = -1;
+
+ print_debug("exec: %s core: %s", exec_file, core_file);
+
+ strncpy(ph->core->exec_path, exec_file, sizeof(ph->core->exec_path));
+
+ // open the core file
+ if ((ph->core->core_fd = open(core_file, O_RDONLY)) < 0) {
+ print_error("can't open core file\n");
+ goto err;
+ }
+
+ // read core file header
+ if (read_macho64_header(ph->core->core_fd, &core_header) != true || core_header.filetype != MH_CORE) {
+ print_debug("core file is not a valid Mach-O file\n");
+ goto err;
+ }
+
+ if ((ph->core->exec_fd = open(exec_file, O_RDONLY)) < 0) {
+ print_error("can't open executable file\n");
+ goto err;
+ }
+
+ if (read_macho64_header(ph->core->exec_fd, &exec_header) != true ||
+ exec_header.filetype != MH_EXECUTE) {
+ print_error("executable file is not a valid Mach-O file\n");
+ goto err;
+ }
+
+ // process core file segments
+ if (read_core_segments(ph) != true) {
+ print_error("failed to read core segments\n");
+ goto err;
+ }
+
+ // allocate and sort maps into map_array, we need to do this
+ // here because read_shared_lib_info needs to read from debuggee
+ // address space
+ if (sort_map_array(ph) != true) {
+ print_error("failed to sort segment map array\n");
+ goto err;
+ }
+
+ if (read_shared_lib_info(ph) != true) {
+ print_error("failed to read libraries\n");
+ goto err;
+ }
+
+ // sort again because we have added more mappings from shared objects
+ if (sort_map_array(ph) != true) {
+ print_error("failed to sort segment map array\n");
+ goto err;
+ }
+
+ if (init_classsharing_workaround(ph) != true) {
+ print_error("failed to workaround classshareing\n");
+ goto err;
+ }
+
+ print_debug("Leave Pgrab_core\n");
+ return ph;
+
+err:
+ Prelease(ph);
+ return NULL;
+}
+
+#else // __APPLE__ (none macosx)
+
+// read regs and create thread from core file
static bool core_handle_prstatus(struct ps_prochandle* ph, const char* buf, size_t nbytes) {
// we have to read prstatus_t from buf
// assert(nbytes == sizeof(prstaus_t), "size mismatch on prstatus_t");
prstatus_t* prstat = (prstatus_t*) buf;
- thread_info* newthr;
+ sa_thread_info* newthr;
print_debug("got integer regset for lwp %d\n", prstat->pr_pid);
// we set pthread_t to -1 for core dump
if((newthr = add_thread_info(ph, (pthread_t) -1, prstat->pr_pid)) == NULL)
@@ -632,8 +1093,9 @@
notep->n_type, notep->n_descsz);
if (notep->n_type == NT_PRSTATUS) {
- if (core_handle_prstatus(ph, descdata, notep->n_descsz) != true)
+ if (core_handle_prstatus(ph, descdata, notep->n_descsz) != true) {
return false;
+ }
}
p = descdata + ROUNDUP(notep->n_descsz, 4);
}
@@ -681,7 +1143,9 @@
for (core_php = phbuf, i = 0; i < core_ehdr->e_phnum; i++) {
switch (core_php->p_type) {
case PT_NOTE:
- if (core_handle_note(ph, core_php) != true) goto err;
+ if (core_handle_note(ph, core_php) != true) {
+ goto err;
+ }
break;
case PT_LOAD: {
@@ -800,7 +1264,6 @@
return false;
}
-
#define FIRST_LINK_MAP_OFFSET offsetof(struct r_debug, r_map)
#define LD_BASE_OFFSET offsetof(struct r_debug, r_ldbase)
#define LINK_MAP_ADDR_OFFSET offsetof(struct link_map, l_addr)
@@ -810,213 +1273,218 @@
// read shared library info from runtime linker's data structures.
// This work is done by librtlb_db in Solaris
static bool read_shared_lib_info(struct ps_prochandle* ph) {
- uintptr_t addr = ph->core->dynamic_addr;
- uintptr_t debug_base;
- uintptr_t first_link_map_addr;
- uintptr_t ld_base_addr;
- uintptr_t link_map_addr;
- uintptr_t lib_base_diff;
- uintptr_t lib_base;
- uintptr_t lib_name_addr;
- char lib_name[BUF_SIZE];
- ELF_DYN dyn;
- ELF_EHDR elf_ehdr;
- int lib_fd;
+ uintptr_t addr = ph->core->dynamic_addr;
+ uintptr_t debug_base;
+ uintptr_t first_link_map_addr;
+ uintptr_t ld_base_addr;
+ uintptr_t link_map_addr;
+ uintptr_t lib_base_diff;
+ uintptr_t lib_base;
+ uintptr_t lib_name_addr;
+ char lib_name[BUF_SIZE];
+ ELF_DYN dyn;
+ ELF_EHDR elf_ehdr;
+ int lib_fd;
- // _DYNAMIC has information of the form
- // [tag] [data] [tag] [data] .....
- // Both tag and data are pointer sized.
- // We look for dynamic info with DT_DEBUG. This has shared object info.
- // refer to struct r_debug in link.h
+ // _DYNAMIC has information of the form
+ // [tag] [data] [tag] [data] .....
+ // Both tag and data are pointer sized.
+ // We look for dynamic info with DT_DEBUG. This has shared object info.
+ // refer to struct r_debug in link.h
- dyn.d_tag = DT_NULL;
- while (dyn.d_tag != DT_DEBUG) {
- if (ps_pread(ph, (psaddr_t) addr, &dyn, sizeof(ELF_DYN)) != PS_OK) {
- print_debug("can't read debug info from _DYNAMIC\n");
- return false;
- }
- addr += sizeof(ELF_DYN);
- }
+ dyn.d_tag = DT_NULL;
+ while (dyn.d_tag != DT_DEBUG) {
+ if (ps_pread(ph, (psaddr_t) addr, &dyn, sizeof(ELF_DYN)) != PS_OK) {
+ print_debug("can't read debug info from _DYNAMIC\n");
+ return false;
+ }
+ addr += sizeof(ELF_DYN);
+ }
- // we have got Dyn entry with DT_DEBUG
- debug_base = dyn.d_un.d_ptr;
- // at debug_base we have struct r_debug. This has first link map in r_map field
- if (ps_pread(ph, (psaddr_t) debug_base + FIRST_LINK_MAP_OFFSET,
- &first_link_map_addr, sizeof(uintptr_t)) != PS_OK) {
- print_debug("can't read first link map address\n");
- return false;
- }
+ // we have got Dyn entry with DT_DEBUG
+ debug_base = dyn.d_un.d_ptr;
+ // at debug_base we have struct r_debug. This has first link map in r_map field
+ if (ps_pread(ph, (psaddr_t) debug_base + FIRST_LINK_MAP_OFFSET,
+ &first_link_map_addr, sizeof(uintptr_t)) != PS_OK) {
+ print_debug("can't read first link map address\n");
+ return false;
+ }
- // read ld_base address from struct r_debug
- // XXX: There is no r_ldbase member on BSD
-/*
- if (ps_pread(ph, (psaddr_t) debug_base + LD_BASE_OFFSET, &ld_base_addr,
- sizeof(uintptr_t)) != PS_OK) {
- print_debug("can't read ld base address\n");
- return false;
- }
- ph->core->ld_base_addr = ld_base_addr;
-*/
- ph->core->ld_base_addr = 0;
+ // read ld_base address from struct r_debug
+ // XXX: There is no r_ldbase member on BSD
+ /*
+ if (ps_pread(ph, (psaddr_t) debug_base + LD_BASE_OFFSET, &ld_base_addr,
+ sizeof(uintptr_t)) != PS_OK) {
+ print_debug("can't read ld base address\n");
+ return false;
+ }
+ ph->core->ld_base_addr = ld_base_addr;
+ */
+ ph->core->ld_base_addr = 0;
- print_debug("interpreter base address is 0x%lx\n", ld_base_addr);
+ print_debug("interpreter base address is 0x%lx\n", ld_base_addr);
- // now read segments from interp (i.e ld-elf.so.1)
- if (read_interp_segments(ph) != true)
- return false;
+ // now read segments from interp (i.e ld-elf.so.1)
+ if (read_interp_segments(ph) != true)
+ return false;
- // after adding interpreter (ld.so) mappings sort again
- if (sort_map_array(ph) != true)
- return false;
+ // after adding interpreter (ld.so) mappings sort again
+ if (sort_map_array(ph) != true)
+ return false;
- print_debug("first link map is at 0x%lx\n", first_link_map_addr);
+ print_debug("first link map is at 0x%lx\n", first_link_map_addr);
- link_map_addr = first_link_map_addr;
- while (link_map_addr != 0) {
- // read library base address of the .so. Note that even though <sys/link.h> calls
- // link_map->l_addr as "base address", this is * not * really base virtual
- // address of the shared object. This is actually the difference b/w the virtual
- // address mentioned in shared object and the actual virtual base where runtime
- // linker loaded it. We use "base diff" in read_lib_segments call below.
+ link_map_addr = first_link_map_addr;
+ while (link_map_addr != 0) {
+ // read library base address of the .so. Note that even though <sys/link.h> calls
+ // link_map->l_addr as "base address", this is * not * really base virtual
+ // address of the shared object. This is actually the difference b/w the virtual
+ // address mentioned in shared object and the actual virtual base where runtime
+ // linker loaded it. We use "base diff" in read_lib_segments call below.
- if (ps_pread(ph, (psaddr_t) link_map_addr + LINK_MAP_ADDR_OFFSET,
- &lib_base_diff, sizeof(uintptr_t)) != PS_OK) {
- print_debug("can't read shared object base address diff\n");
- return false;
- }
+ if (ps_pread(ph, (psaddr_t) link_map_addr + LINK_MAP_ADDR_OFFSET,
+ &lib_base_diff, sizeof(uintptr_t)) != PS_OK) {
+ print_debug("can't read shared object base address diff\n");
+ return false;
+ }
- // read address of the name
- if (ps_pread(ph, (psaddr_t) link_map_addr + LINK_MAP_NAME_OFFSET,
- &lib_name_addr, sizeof(uintptr_t)) != PS_OK) {
- print_debug("can't read address of shared object name\n");
- return false;
- }
+ // read address of the name
+ if (ps_pread(ph, (psaddr_t) link_map_addr + LINK_MAP_NAME_OFFSET,
+ &lib_name_addr, sizeof(uintptr_t)) != PS_OK) {
+ print_debug("can't read address of shared object name\n");
+ return false;
+ }
- // read name of the shared object
- if (read_string(ph, (uintptr_t) lib_name_addr, lib_name, sizeof(lib_name)) != true) {
- print_debug("can't read shared object name\n");
- return false;
- }
+ // read name of the shared object
+ if (read_string(ph, (uintptr_t) lib_name_addr, lib_name, sizeof(lib_name)) != true) {
+ print_debug("can't read shared object name\n");
+ return false;
+ }
- if (lib_name[0] != '\0') {
- // ignore empty lib names
- lib_fd = pathmap_open(lib_name);
+ if (lib_name[0] != '\0') {
+ // ignore empty lib names
+ lib_fd = pathmap_open(lib_name);
- if (lib_fd < 0) {
- print_debug("can't open shared object %s\n", lib_name);
- // continue with other libraries...
- } else {
- if (read_elf_header(lib_fd, &elf_ehdr)) {
- lib_base = lib_base_diff + find_base_address(lib_fd, &elf_ehdr);
- print_debug("reading library %s @ 0x%lx [ 0x%lx ]\n",
- lib_name, lib_base, lib_base_diff);
- // while adding library mappings we need to use "base difference".
- if (! read_lib_segments(ph, lib_fd, &elf_ehdr, lib_base_diff)) {
- print_debug("can't read shared object's segments\n");
- close(lib_fd);
- return false;
- }
- add_lib_info_fd(ph, lib_name, lib_fd, lib_base);
- // Map info is added for the library (lib_name) so
- // we need to re-sort it before calling the p_pdread.
- if (sort_map_array(ph) != true)
- return false;
- } else {
- print_debug("can't read ELF header for shared object %s\n", lib_name);
- close(lib_fd);
- // continue with other libraries...
- }
- }
+ if (lib_fd < 0) {
+ print_debug("can't open shared object %s\n", lib_name);
+ // continue with other libraries...
+ } else {
+ if (read_elf_header(lib_fd, &elf_ehdr)) {
+ lib_base = lib_base_diff + find_base_address(lib_fd, &elf_ehdr);
+ print_debug("reading library %s @ 0x%lx [ 0x%lx ]\n",
+ lib_name, lib_base, lib_base_diff);
+ // while adding library mappings we need to use "base difference".
+ if (! read_lib_segments(ph, lib_fd, &elf_ehdr, lib_base_diff)) {
+ print_debug("can't read shared object's segments\n");
+ close(lib_fd);
+ return false;
+ }
+ add_lib_info_fd(ph, lib_name, lib_fd, lib_base);
+ // Map info is added for the library (lib_name) so
+ // we need to re-sort it before calling the p_pdread.
+ if (sort_map_array(ph) != true)
+ return false;
+ } else {
+ print_debug("can't read ELF header for shared object %s\n", lib_name);
+ close(lib_fd);
+ // continue with other libraries...
+ }
}
+ }
- // read next link_map address
- if (ps_pread(ph, (psaddr_t) link_map_addr + LINK_MAP_NEXT_OFFSET,
- &link_map_addr, sizeof(uintptr_t)) != PS_OK) {
- print_debug("can't read next link in link_map\n");
- return false;
- }
- }
+ // read next link_map address
+ if (ps_pread(ph, (psaddr_t) link_map_addr + LINK_MAP_NEXT_OFFSET,
+ &link_map_addr, sizeof(uintptr_t)) != PS_OK) {
+ print_debug("can't read next link in link_map\n");
+ return false;
+ }
+ }
- return true;
+ return true;
}
// the one and only one exposed stuff from this file
struct ps_prochandle* Pgrab_core(const char* exec_file, const char* core_file) {
- ELF_EHDR core_ehdr;
- ELF_EHDR exec_ehdr;
+ ELF_EHDR core_ehdr;
+ ELF_EHDR exec_ehdr;
- struct ps_prochandle* ph = (struct ps_prochandle*) calloc(1, sizeof(struct ps_prochandle));
- if (ph == NULL) {
- print_debug("can't allocate ps_prochandle\n");
- return NULL;
- }
+ struct ps_prochandle* ph = (struct ps_prochandle*) calloc(1, sizeof(struct ps_prochandle));
+ if (ph == NULL) {
+ print_debug("cant allocate ps_prochandle\n");
+ return NULL;
+ }
- if ((ph->core = (struct core_data*) calloc(1, sizeof(struct core_data))) == NULL) {
- free(ph);
- print_debug("can't allocate ps_prochandle\n");
- return NULL;
- }
+ if ((ph->core = (struct core_data*) calloc(1, sizeof(struct core_data))) == NULL) {
+ free(ph);
+ print_debug("can't allocate ps_prochandle\n");
+ return NULL;
+ }
- // initialize ph
- ph->ops = &core_ops;
- ph->core->core_fd = -1;
- ph->core->exec_fd = -1;
- ph->core->interp_fd = -1;
+ // initialize ph
+ ph->ops = &core_ops;
+ ph->core->core_fd = -1;
+ ph->core->exec_fd = -1;
+ ph->core->interp_fd = -1;
+
+ print_debug("exec: %s core: %s", exec_file, core_file);
- // open the core file
- if ((ph->core->core_fd = open(core_file, O_RDONLY)) < 0) {
- print_debug("can't open core file\n");
- goto err;
- }
+ // open the core file
+ if ((ph->core->core_fd = open(core_file, O_RDONLY)) < 0) {
+ print_debug("can't open core file\n");
+ goto err;
+ }
- // read core file ELF header
- if (read_elf_header(ph->core->core_fd, &core_ehdr) != true || core_ehdr.e_type != ET_CORE) {
- print_debug("core file is not a valid ELF ET_CORE file\n");
- goto err;
- }
+ // read core file ELF header
+ if (read_elf_header(ph->core->core_fd, &core_ehdr) != true || core_ehdr.e_type != ET_CORE) {
+ print_debug("core file is not a valid ELF ET_CORE file\n");
+ goto err;
+ }
- if ((ph->core->exec_fd = open(exec_file, O_RDONLY)) < 0) {
- print_debug("can't open executable file\n");
- goto err;
- }
+ if ((ph->core->exec_fd = open(exec_file, O_RDONLY)) < 0) {
+ print_debug("can't open executable file\n");
+ goto err;
+ }
- if (read_elf_header(ph->core->exec_fd, &exec_ehdr) != true || exec_ehdr.e_type != ET_EXEC) {
- print_debug("executable file is not a valid ELF ET_EXEC file\n");
- goto err;
- }
+ if (read_elf_header(ph->core->exec_fd, &exec_ehdr) != true || exec_ehdr.e_type != ET_EXEC) {
+ print_debug("executable file is not a valid ELF ET_EXEC file\n");
+ goto err;
+ }
- // process core file segments
- if (read_core_segments(ph, &core_ehdr) != true)
- goto err;
+ // process core file segments
+ if (read_core_segments(ph, &core_ehdr) != true)
+ goto err;
- // process exec file segments
- if (read_exec_segments(ph, &exec_ehdr) != true)
- goto err;
+ // process exec file segments
+ if (read_exec_segments(ph, &exec_ehdr) != true)
+ goto err;
- // exec file is also treated like a shared object for symbol search
- if (add_lib_info_fd(ph, exec_file, ph->core->exec_fd,
- (uintptr_t)0 + find_base_address(ph->core->exec_fd, &exec_ehdr)) == NULL)
- goto err;
+ // exec file is also treated like a shared object for symbol search
+ if (add_lib_info_fd(ph, exec_file, ph->core->exec_fd,
+ (uintptr_t)0 + find_base_address(ph->core->exec_fd, &exec_ehdr)) == NULL)
+ goto err;
- // allocate and sort maps into map_array, we need to do this
- // here because read_shared_lib_info needs to read from debuggee
- // address space
- if (sort_map_array(ph) != true)
- goto err;
+ // allocate and sort maps into map_array, we need to do this
+ // here because read_shared_lib_info needs to read from debuggee
+ // address space
+ if (sort_map_array(ph) != true)
+ goto err;
- if (read_shared_lib_info(ph) != true)
- goto err;
+ if (read_shared_lib_info(ph) != true)
+ goto err;
- // sort again because we have added more mappings from shared objects
- if (sort_map_array(ph) != true)
- goto err;
+ // sort again because we have added more mappings from shared objects
+ if (sort_map_array(ph) != true)
+ goto err;
- if (init_classsharing_workaround(ph) != true)
- goto err;
+ if (init_classsharing_workaround(ph) != true)
+ goto err;
- return ph;
+ print_debug("Leave Pgrab_core\n");
+ return ph;
err:
- Prelease(ph);
- return NULL;
+ Prelease(ph);
+ return NULL;
}
+
+#endif // __APPLE__
--- a/hotspot/agent/src/os/bsd/symtab.c Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/os/bsd/symtab.c Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2003, 2010, 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
@@ -28,32 +28,182 @@
#include <string.h>
#include <db.h>
#include <fcntl.h>
+
+#include "libproc_impl.h"
#include "symtab.h"
+#ifndef __APPLE__
#include "salibelf.h"
+#endif // __APPLE__
// ----------------------------------------------------
// functions for symbol lookups
// ----------------------------------------------------
+typedef struct symtab_symbol {
+ char *name; // name like __ZThread_...
+ uintptr_t offset; // to loaded address
+ uintptr_t size; // size strlen
+} symtab_symbol;
+
+typedef struct symtab {
+ char *strs; // all symbols "__symbol1__'\0'__symbol2__...."
+ size_t num_symbols;
+ DB* hash_table;
+ symtab_symbol* symbols;
+} symtab_t;
+
+#ifdef __APPLE__
+
+void build_search_table(symtab_t *symtab) {
+ int i;
+ for (i = 0; i < symtab->num_symbols; i++) {
+ DBT key, value;
+ key.data = symtab->symbols[i].name;
+ key.size = strlen(key.data) + 1;
+ value.data = &(symtab->symbols[i]);
+ value.size = sizeof(symtab_symbol);
+ (*symtab->hash_table->put)(symtab->hash_table, &key, &value, 0);
+
+ // check result
+ if (is_debug()) {
+ DBT rkey, rvalue;
+ char* tmp = (char *)malloc(strlen(symtab->symbols[i].name) + 1);
+ strcpy(tmp, symtab->symbols[i].name);
+ rkey.data = tmp;
+ rkey.size = strlen(tmp) + 1;
+ (*symtab->hash_table->get)(symtab->hash_table, &rkey, &rvalue, 0);
+ // we may get a copy back so compare contents
+ symtab_symbol *res = (symtab_symbol *)rvalue.data;
+ if (strcmp(res->name, symtab->symbols[i].name) ||
+ res->offset != symtab->symbols[i].offset ||
+ res->size != symtab->symbols[i].size) {
+ print_debug("error to get hash_table value!\n");
+ }
+ free(tmp);
+ }
+ }
+}
+
+// read symbol table from given fd.
+struct symtab* build_symtab(int fd) {
+ symtab_t* symtab = NULL;
+ int i;
+ mach_header_64 header;
+ off_t image_start;
+
+ if (!get_arch_off(fd, CPU_TYPE_X86_64, &image_start)) {
+ print_debug("failed in get fat header\n");
+ return NULL;
+ }
+ lseek(fd, image_start, SEEK_SET);
+ if (read(fd, (void *)&header, sizeof(mach_header_64)) != sizeof(mach_header_64)) {
+ print_debug("reading header failed!\n");
+ return NULL;
+ }
+ // header
+ if (header.magic != MH_MAGIC_64) {
+ print_debug("not a valid .dylib file\n");
+ return NULL;
+ }
+
+ load_command lcmd;
+ symtab_command symtabcmd;
+ nlist_64 lentry;
+
+ bool lcsymtab_exist = false;
+
+ long filepos = ltell(fd);
+ for (i = 0; i < header.ncmds; i++) {
+ lseek(fd, filepos, SEEK_SET);
+ if (read(fd, (void *)&lcmd, sizeof(load_command)) != sizeof(load_command)) {
+ print_debug("read load_command failed for file\n");
+ return NULL;
+ }
+ filepos += lcmd.cmdsize; // next command position
+ if (lcmd.cmd == LC_SYMTAB) {
+ lseek(fd, -sizeof(load_command), SEEK_CUR);
+ lcsymtab_exist = true;
+ break;
+ }
+ }
+ if (!lcsymtab_exist) {
+ print_debug("No symtab command found!\n");
+ return NULL;
+ }
+ if (read(fd, (void *)&symtabcmd, sizeof(symtab_command)) != sizeof(symtab_command)) {
+ print_debug("read symtab_command failed for file");
+ return NULL;
+ }
+ symtab = (symtab_t *)malloc(sizeof(symtab_t));
+ if (symtab == NULL) {
+ print_debug("out of memory: allocating symtab\n");
+ return NULL;
+ }
+
+ // create hash table, we use berkeley db to
+ // manipulate the hash table.
+ symtab->hash_table = dbopen(NULL, O_CREAT | O_RDWR, 0600, DB_HASH, NULL);
+ if (symtab->hash_table == NULL)
+ goto quit;
+
+ symtab->num_symbols = symtabcmd.nsyms;
+ symtab->symbols = (symtab_symbol *)malloc(sizeof(symtab_symbol) * symtab->num_symbols);
+ symtab->strs = (char *)malloc(sizeof(char) * symtabcmd.strsize);
+ if (symtab->symbols == NULL || symtab->strs == NULL) {
+ print_debug("out of memory: allocating symtab.symbol or symtab.strs\n");
+ goto quit;
+ }
+ lseek(fd, image_start + symtabcmd.symoff, SEEK_SET);
+ for (i = 0; i < symtab->num_symbols; i++) {
+ if (read(fd, (void *)&lentry, sizeof(nlist_64)) != sizeof(nlist_64)) {
+ print_debug("read nlist_64 failed at %i\n", i);
+ goto quit;
+ }
+ symtab->symbols[i].offset = lentry.n_value;
+ symtab->symbols[i].size = lentry.n_un.n_strx; // index
+ }
+
+ // string table
+ lseek(fd, image_start + symtabcmd.stroff, SEEK_SET);
+ int size = read(fd, (void *)(symtab->strs), symtabcmd.strsize * sizeof(char));
+ if (size != symtabcmd.strsize * sizeof(char)) {
+ print_debug("reading string table failed\n");
+ goto quit;
+ }
+
+ for (i = 0; i < symtab->num_symbols; i++) {
+ symtab->symbols[i].name = symtab->strs + symtab->symbols[i].size;
+ if (i > 0) {
+ // fix size
+ symtab->symbols[i - 1].size = symtab->symbols[i].size - symtab->symbols[i - 1].size;
+ print_debug("%s size = %d\n", symtab->symbols[i - 1].name, symtab->symbols[i - 1].size);
+
+ }
+
+ if (i == symtab->num_symbols - 1) {
+ // last index
+ symtab->symbols[i].size =
+ symtabcmd.strsize - symtab->symbols[i].size;
+ print_debug("%s size = %d\n", symtab->symbols[i].name, symtab->symbols[i].size);
+ }
+ }
+
+ // build a hashtable for fast query
+ build_search_table(symtab);
+ return symtab;
+quit:
+ if (symtab) destroy_symtab(symtab);
+ return NULL;
+}
+
+#else // __APPLE__
+
struct elf_section {
ELF_SHDR *c_shdr;
void *c_data;
};
-struct elf_symbol {
- char *name;
- uintptr_t offset;
- uintptr_t size;
-};
-
-typedef struct symtab {
- char *strs;
- size_t num_symbols;
- struct elf_symbol *symbols;
- DB* hash_table;
-} symtab_t;
-
// read symbol table from given fd.
struct symtab* build_symtab(int fd) {
ELF_EHDR ehdr;
@@ -176,7 +326,7 @@
key.data = sym_name;
key.size = strlen(sym_name) + 1;
value.data = &(symtab->symbols[j]);
- value.size = sizeof(void *);
+ value.size = sizeof(symtab_symbol);
(*symtab->hash_table->put)(symtab->hash_table, &key, &value, 0);
}
}
@@ -201,30 +351,29 @@
return symtab;
}
-void destroy_symtab(struct symtab* symtab) {
+#endif // __APPLE__
+
+void destroy_symtab(symtab_t* symtab) {
if (!symtab) return;
- if (symtab->strs) free(symtab->strs);
- if (symtab->symbols) free(symtab->symbols);
- if (symtab->hash_table) {
- (*symtab->hash_table->close)(symtab->hash_table);
- }
+ free(symtab->strs);
+ free(symtab->symbols);
free(symtab);
}
-uintptr_t search_symbol(struct symtab* symtab, uintptr_t base,
- const char *sym_name, int *sym_size) {
+uintptr_t search_symbol(struct symtab* symtab, uintptr_t base, const char *sym_name, int *sym_size) {
DBT key, value;
int ret;
// library does not have symbol table
- if (!symtab || !symtab->hash_table)
+ if (!symtab || !symtab->hash_table) {
return 0;
+ }
key.data = (char*)(uintptr_t)sym_name;
key.size = strlen(sym_name) + 1;
ret = (*symtab->hash_table->get)(symtab->hash_table, &key, &value, 0);
if (ret == 0) {
- struct elf_symbol *sym = value.data;
+ symtab_symbol *sym = value.data;
uintptr_t rslt = (uintptr_t) ((char*)base + sym->offset);
if (sym_size) *sym_size = sym->size;
return rslt;
@@ -238,7 +387,7 @@
int n = 0;
if (!symtab) return NULL;
for (; n < symtab->num_symbols; n++) {
- struct elf_symbol* sym = &(symtab->symbols[n]);
+ symtab_symbol* sym = &(symtab->symbols[n]);
if (sym->name != NULL &&
offset >= sym->offset && offset < sym->offset + sym->size) {
if (poffset) *poffset = (offset - sym->offset);
--- a/hotspot/agent/src/os/bsd/symtab.h Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/os/bsd/symtab.h Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2003, 2010, 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
@@ -27,11 +27,11 @@
#include <stdint.h>
-// interface to manage ELF symbol tables
+// interface to manage ELF or MachO symbol tables
struct symtab;
-// build symbol table for a given ELF file descriptor
+// build symbol table for a given ELF or MachO file escriptor
struct symtab* build_symtab(int fd);
// destroy the symbol table
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/BsdVtblAccess.java Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/BsdVtblAccess.java Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 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
@@ -34,11 +34,18 @@
public BsdVtblAccess(SymbolLookup symbolLookup,
String[] dllNames) {
super(symbolLookup, dllNames);
-
- if (symbolLookup.lookup("libjvm.so", "__vt_10JavaThread") != null ||
- symbolLookup.lookup("libjvm_g.so", "__vt_10JavaThread") != null) {
+ boolean oldVT = false;
+ boolean isDarwin = dllNames[0].lastIndexOf(".dylib") != -1;
+ String vtJavaThread = isDarwin ? "_vt_10JavaThread" : "__vt_10JavaThread";
+ for (String dllName : dllNames) {
+ if (symbolLookup.lookup(dllName, vtJavaThread) != null) {
+ oldVT = true;
+ break;
+ }
+ }
+ if (oldVT) {
// old C++ ABI
- vt = "__vt_";
+ vt = isDarwin ? "_vt_" : "__vt_";
} else {
// new C++ ABI
vt = "_ZTV";
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/CommandProcessor.java Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/CommandProcessor.java Sun Mar 17 08:57:56 2013 -0700
@@ -1517,7 +1517,7 @@
ByteArrayOutputStream bos = new ByteArrayOutputStream();
thread.printThreadIDOn(new PrintStream(bos));
if (all || bos.toString().equals(name)) {
- out.println(bos.toString() + " = " + thread.getAddress());
+ out.println("Thread " + bos.toString() + " Address: " + thread.getAddress());
HTMLGenerator gen = new HTMLGenerator(false);
try {
out.println(gen.genHTMLForJavaStackTrace(thread));
@@ -1546,7 +1546,7 @@
ByteArrayOutputStream bos = new ByteArrayOutputStream();
thread.printThreadIDOn(new PrintStream(bos));
if (all || bos.toString().equals(name)) {
- out.println(bos.toString() + " = " + thread.getAddress());
+ out.println("Thread " + bos.toString() + " Address " + thread.getAddress());
if (!all) return;
}
}
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/HotSpotAgent.java Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/HotSpotAgent.java Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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
@@ -311,6 +311,8 @@
setupDebuggerLinux();
} else if (os.equals("bsd")) {
setupDebuggerBsd();
+ } else if (os.equals("darwin")) {
+ setupDebuggerDarwin();
} else {
// Add support for more operating systems here
throw new DebuggerException("Operating system " + os + " not yet supported");
@@ -370,6 +372,10 @@
db = new HotSpotTypeDataBase(machDesc,
new BsdVtblAccess(debugger, jvmLibNames),
debugger, jvmLibNames);
+ } else if (os.equals("darwin")) {
+ db = new HotSpotTypeDataBase(machDesc,
+ new BsdVtblAccess(debugger, jvmLibNames),
+ debugger, jvmLibNames);
} else {
throw new DebuggerException("OS \"" + os + "\" not yet supported (no VtblAccess yet)");
}
@@ -459,6 +465,8 @@
setupJVMLibNamesLinux();
} else if (os.equals("bsd")) {
setupJVMLibNamesBsd();
+ } else if (os.equals("darwin")) {
+ setupJVMLibNamesDarwin();
} else {
throw new RuntimeException("Unknown OS type");
}
@@ -567,6 +575,29 @@
jvmLibNames = new String[] { "libjvm.so", "libjvm_g.so" };
}
+ //
+ // Darwin
+ //
+
+ private void setupDebuggerDarwin() {
+ setupJVMLibNamesDarwin();
+
+ if (cpu.equals("amd64") || cpu.equals("x86_64")) {
+ machDesc = new MachineDescriptionAMD64();
+ } else {
+ throw new DebuggerException("Darwin only supported on x86_64. Current arch: " + cpu);
+ }
+
+ BsdDebuggerLocal dbg = new BsdDebuggerLocal(machDesc, !isServer);
+ debugger = dbg;
+
+ attachDebugger();
+ }
+
+ private void setupJVMLibNamesDarwin() {
+ jvmLibNames = new String[] { "libjvm.dylib", "libjvm_g.dylib" };
+ }
+
/** Convenience routine which should be called by per-platform
debugger setup. Should not be called when startupMode is
REMOTE_MODE. */
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdDebuggerLocal.java Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdDebuggerLocal.java Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2002, 2008, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 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
@@ -31,6 +31,9 @@
import sun.jvm.hotspot.debugger.x86.*;
import sun.jvm.hotspot.debugger.cdbg.*;
import sun.jvm.hotspot.utilities.*;
+import sun.jvm.hotspot.runtime.VM;
+import sun.jvm.hotspot.runtime.Threads;
+import sun.jvm.hotspot.runtime.JavaThread;
import java.lang.reflect.*;
/** <P> An implementation of the JVMDebugger interface. The basic debug
@@ -51,10 +54,11 @@
public class BsdDebuggerLocal extends DebuggerBase implements BsdDebugger {
private boolean useGCC32ABI;
private boolean attached;
- private long p_ps_prochandle; // native debugger handle
- private long symbolicator; // macosx symbolicator handle
- private long task; // macosx task handle
+ private long p_ps_prochandle; // native debugger handle
+ private long symbolicator; // macosx symbolicator handle
+ private long task; // macosx task handle
private boolean isCore;
+ private boolean isDarwin; // variant for bsd
// CDebugger support
private BsdCDebugger cdbg;
@@ -208,6 +212,7 @@
}
}
+ isDarwin = getOS().equals("darwin");
workerThread = new BsdDebuggerLocalWorkerThread(this);
workerThread.start();
}
@@ -240,8 +245,11 @@
/* called from attach methods */
private void findABIVersion() throws DebuggerException {
- if (lookupByName0("libjvm.so", "__vt_10JavaThread") != 0 ||
- lookupByName0("libjvm_g.so", "__vt_10JavaThread") != 0) {
+ String libjvmName = isDarwin ? "libjvm.dylib" : "libjvm.so";
+ String libjvm_gName = isDarwin? "libjvm_g.dylib" : "libjvm_g.so";
+ String javaThreadVt = isDarwin ? "_vt_10JavaThread" : "__vt_10JavaThread";
+ if (lookupByName0(libjvmName, javaThreadVt) != 0 ||
+ lookupByName0(libjvm_gName, javaThreadVt) != 0) {
// old C++ ABI
useGCC32ABI = false;
} else {
@@ -360,7 +368,8 @@
}
if (isCore) {
- long addr = lookupByName0(objectName, symbol);
+ // MacOSX symbol with "_" as leading
+ long addr = lookupByName0(objectName, isDarwin ? "_" + symbol : symbol);
return (addr == 0)? null : new BsdAddress(this, handleGCC32ABI(addr, symbol));
} else {
class LookupByNameTask implements WorkerThreadTask {
@@ -403,12 +412,12 @@
public ThreadProxy getThreadForIdentifierAddress(Address threadIdAddr, Address uniqueThreadIdAddr) {
return new BsdThread(this, threadIdAddr, uniqueThreadIdAddr);
}
+
@Override
public ThreadProxy getThreadForIdentifierAddress(Address addr) {
throw new RuntimeException("unimplemented");
}
-
/** From the ThreadAccess interface via Debugger and JVMDebugger */
public ThreadProxy getThreadForThreadId(long id) {
return new BsdThread(this, id);
@@ -601,6 +610,33 @@
throw new DebuggerException("Unimplemented");
}
+ /** this functions used for core file reading and called from native attach0,
+ it returns an array of long integers as
+ [thread_id, stack_start, stack_end, thread_id, stack_start, stack_end, ....] for
+ all java threads recorded in Threads. Also adds the ThreadProxy to threadList */
+ public long[] getJavaThreadsInfo() {
+ requireAttach();
+ Threads threads = VM.getVM().getThreads();
+ int len = threads.getNumberOfThreads();
+ long[] result = new long[len * 3]; // triple
+ JavaThread t = threads.first();
+ long beg, end;
+ int i = 0;
+ while (t != null) {
+ end = t.getStackBaseValue();
+ beg = end - t.getStackSize();
+ BsdThread bsdt = (BsdThread)t.getThreadProxy();
+ long uid = bsdt.getUniqueThreadId();
+ if (threadList != null) threadList.add(bsdt);
+ result[i] = uid;
+ result[i + 1] = beg;
+ result[i + 2] = end;
+ t = t.next();
+ i += 3;
+ }
+ return result;
+ }
+
static {
System.loadLibrary("saproc");
init0();
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdThread.java Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/debugger/bsd/BsdThread.java Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2002, 2003, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2002, 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
@@ -44,7 +44,8 @@
BsdThread(BsdDebugger debugger, long id) {
this.debugger = debugger;
- this.thread_id = (int) id;
+ // use unique_thread_id to identify thread
+ this.unique_thread_id = id;
}
public boolean equals(Object obj) {
@@ -52,7 +53,7 @@
return false;
}
- return (((BsdThread) obj).thread_id == thread_id);
+ return (((BsdThread) obj).unique_thread_id == unique_thread_id);
}
public int hashCode() {
@@ -80,4 +81,9 @@
throws IllegalThreadStateException, DebuggerException {
throw new DebuggerException("Unimplemented");
}
+
+ /** this is not interface function, used in core file to get unique thread id on Macosx*/
+ public long getUniqueThreadId() {
+ return unique_thread_id;
+ }
}
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/JavaThread.java Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/JavaThread.java Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2000, 2010, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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
@@ -320,6 +320,10 @@
return stackBaseField.getValue(addr);
}
+ public long getStackBaseValue() {
+ return VM.getVM().getAddressValue(getStackBase());
+ }
+
public long getStackSize() {
return stackSizeField.getValue(addr);
}
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/Threads.java Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/runtime/Threads.java Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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
@@ -42,6 +42,7 @@
public class Threads {
private static JavaThreadFactory threadFactory;
private static AddressField threadListField;
+ private static CIntegerField numOfThreadsField;
private static VirtualConstructor virtualConstructor;
private static JavaThreadPDAccess access;
@@ -57,6 +58,7 @@
Type type = db.lookupType("Threads");
threadListField = type.getAddressField("_thread_list");
+ numOfThreadsField = type.getCIntegerField("_number_of_threads");
// Instantiate appropriate platform-specific JavaThreadFactory
String os = VM.getVM().getOS();
@@ -102,6 +104,10 @@
} else if (cpu.equals("amd64") || cpu.equals("x86_64")) {
access = new BsdAMD64JavaThreadPDAccess();
}
+ } else if (os.equals("darwin")) {
+ if (cpu.equals("amd64") || cpu.equals("x86_64")) {
+ access = new BsdAMD64JavaThreadPDAccess();
+ }
}
if (access == null) {
@@ -144,6 +150,10 @@
return createJavaThreadWrapper(threadAddr);
}
+ public int getNumberOfThreads() {
+ return (int) numOfThreadsField.getValue();
+ }
+
/** Routine for instantiating appropriately-typed wrapper for a
JavaThread. Currently needs to be public for OopUtilities to
access it. */
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/tools/PStack.java Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/tools/PStack.java Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * 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
@@ -32,6 +32,7 @@
import sun.jvm.hotspot.debugger.cdbg.*;
import sun.jvm.hotspot.oops.*;
import sun.jvm.hotspot.runtime.*;
+import sun.jvm.hotspot.utilities.PlatformInfo;
public class PStack extends Tool {
// in non-verbose mode, Method*s are not printed in java frames
@@ -54,6 +55,11 @@
}
public void run(PrintStream out, Debugger dbg) {
+ if (PlatformInfo.getOS().equals("darwin")) {
+ out.println("Not available on Darwin");
+ return;
+ }
+
CDebugger cdbg = dbg.getCDebugger();
if (cdbg != null) {
ConcurrentLocksPrinter concLocksPrinter = null;
--- a/hotspot/agent/src/share/classes/sun/jvm/hotspot/utilities/PlatformInfo.java Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/share/classes/sun/jvm/hotspot/utilities/PlatformInfo.java Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2000, 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2000, 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
@@ -43,8 +43,8 @@
return "bsd";
} else if (os.equals("OpenBSD")) {
return "bsd";
- } else if (os.equals("Darwin") || os.contains("OS X")) {
- return "bsd";
+ } else if (os.contains("Darwin") || os.contains("OS X")) {
+ return "darwin";
} else if (os.startsWith("Windows")) {
return "win32";
} else {
--- a/hotspot/agent/src/share/native/sadis.c Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/agent/src/share/native/sadis.c Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
/*
- * Copyright (c) 2012, Oracle and/or its affiliates. All rights reserved.
+ * Copyright (c) 2012, 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
@@ -48,7 +48,10 @@
#include <string.h>
#include <dlfcn.h>
+
+#ifndef __APPLE__
#include <link.h>
+#endif
#endif
@@ -109,9 +112,7 @@
jstring libname_s) {
uintptr_t func = 0;
const char* error_message = NULL;
- const char* java_home;
jboolean isCopy;
- uintptr_t *handle = NULL;
const char * jrepath = (*env)->GetStringUTFChars(env, jrepath_s, &isCopy); // like $JAVA_HOME/jre/lib/sparc/
const char * libname = (*env)->GetStringUTFChars(env, libname_s, &isCopy);
@@ -167,7 +168,8 @@
void* event_stream,
int (*printf_callback)(void*, const char*, ...),
void* printf_stream,
- const char* options);
+ const char* options,
+ int newline);
/* container for call back state when decoding instructions */
typedef struct {
@@ -281,7 +283,7 @@
end - start,
&event_to_env, (void*) &denv,
&printf_to_env, (void*) &denv,
- options);
+ options, 0 /* newline */);
/* cleanup */
(*env)->ReleaseByteArrayElements(env, code, start, JNI_ABORT);
--- a/hotspot/make/bsd/makefiles/saproc.make Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/make/bsd/makefiles/saproc.make Sun Mar 17 08:57:56 2013 -0700
@@ -1,5 +1,5 @@
#
-# Copyright (c) 2005, 2012, Oracle and/or its affiliates. All rights reserved.
+# Copyright (c) 2005, 2013, Oracle and/or its affiliates. All rights reserved.
# DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER.
#
# This code is free software; you can redistribute it and/or modify it
@@ -24,7 +24,7 @@
# Rules to build serviceability agent library, used by vm.make
-# libsaproc.so: serviceability agent
+# libsaproc.so(dylib): serviceability agent
SAPROC = saproc
ifeq ($(OS_VENDOR), Darwin)
@@ -37,7 +37,7 @@
SASRCDIR = $(AGENT_DIR)/src/os/$(Platform_os_family)
-NON_STUB_SASRCFILES = $(SASRCDIR)/salibelf.c \
+BSD_NON_STUB_SASRCFILES = $(SASRCDIR)/salibelf.c \
$(SASRCDIR)/symtab.c \
$(SASRCDIR)/libproc_impl.c \
$(SASRCDIR)/ps_proc.c \
@@ -45,13 +45,19 @@
$(SASRCDIR)/BsdDebuggerLocal.c \
$(AGENT_DIR)/src/share/native/sadis.c
+DARWIN_NON_STUB_SASRCFILES = $(SASRCDIR)/symtab.c \
+ $(SASRCDIR)/libproc_impl.c \
+ $(SASRCDIR)/ps_core.c \
+ $(SASRCDIR)/MacosxDebuggerLocal.m \
+ $(AGENT_DIR)/src/share/native/sadis.c
+
ifeq ($(OS_VENDOR), FreeBSD)
- SASRCFILES = $(NON_STUB_SASRCFILES)
+ SASRCFILES = $(BSD_NON_STUB_SASRCFILES)
SALIBS = -lutil -lthread_db
SAARCH = $(ARCHFLAG)
else
ifeq ($(OS_VENDOR), Darwin)
- SASRCFILES = $(SASRCDIR)/MacosxDebuggerLocal.m
+ SASRCFILES = $(DARWIN_NON_STUB_SASRCFILES)
SALIBS = -g -framework Foundation -F/System/Library/Frameworks/JavaVM.framework/Frameworks -framework JavaNativeFoundation -framework Security -framework CoreFoundation
#objc compiler blows up on -march=i586, perhaps it should not be included in the macosx intel 32-bit C++ compiles?
SAARCH = $(subst -march=i586,,$(ARCHFLAG))
@@ -102,7 +108,7 @@
fi
@echo Making SA debugger back-end...
$(QUIETLY) $(CC) -D$(BUILDARCH) -D_GNU_SOURCE \
- $(SYMFLAG) $(SAARCH) $(SHARED_FLAG) $(PICFLAG) \
+ $(SYMFLAG) $(SAARCH) $(SHARED_FLAG) $(PICFLAG) \
-I$(SASRCDIR) \
-I$(GENERATED) \
$(BOOT_JAVA_INCLUDES) \
--- a/hotspot/src/share/vm/classfile/classLoaderData.cpp Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/src/share/vm/classfile/classLoaderData.cpp Sun Mar 17 08:57:56 2013 -0700
@@ -105,6 +105,7 @@
void ClassLoaderData::classes_do(KlassClosure* klass_closure) {
for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
klass_closure->do_klass(k);
+ assert(k != k->next_link(), "no loops!");
}
}
@@ -113,6 +114,7 @@
if (k->oop_is_instance()) {
f(InstanceKlass::cast(k));
}
+ assert(k != k->next_link(), "no loops!");
}
}
@@ -258,6 +260,7 @@
return;
}
prev = k;
+ assert(k != k->next_link(), "no loops!");
}
ShouldNotReachHere(); // should have found this class!!
}
@@ -439,6 +442,7 @@
while (k != NULL) {
out->print_cr("klass "PTR_FORMAT", %s, CT: %d, MUT: %d", k, k->name()->as_C_string(),
k->has_modified_oops(), k->has_accumulated_modified_oops());
+ assert(k != k->next_link(), "no loops!");
k = k->next_link();
}
}
@@ -465,6 +469,7 @@
for (Klass* k = _klasses; k != NULL; k = k->next_link()) {
guarantee(k->class_loader_data() == this, "Must be the same");
k->verify();
+ assert(k != k->next_link(), "no loops!");
}
}
--- a/hotspot/src/share/vm/classfile/systemDictionary.cpp Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/src/share/vm/classfile/systemDictionary.cpp Sun Mar 17 08:57:56 2013 -0700
@@ -804,6 +804,32 @@
}
} // load_instance_class loop
+ if (HAS_PENDING_EXCEPTION) {
+ // An exception, such as OOM could have happened at various places inside
+ // load_instance_class. We might have partially initialized a shared class
+ // and need to clean it up.
+ if (class_loader.is_null()) {
+ // In some cases k may be null. Let's find the shared class again.
+ instanceKlassHandle ik(THREAD, find_shared_class(name));
+ if (ik.not_null()) {
+ if (ik->class_loader_data() == NULL) {
+ // We didn't go as far as Klass::restore_unshareable_info(),
+ // so nothing to clean up.
+ } else {
+ MutexLocker mu(SystemDictionary_lock, THREAD);
+ Klass* kk = find_class(name, ik->class_loader_data());
+ if (kk != NULL) {
+ // No clean up is needed if the shared class has been entered
+ // into system dictionary, as load_shared_class() won't be called
+ // again.
+ } else {
+ clean_up_shared_class(ik, class_loader, THREAD);
+ }
+ }
+ }
+ }
+ }
+
if (load_instance_added == true) {
// clean up placeholder entries for LOAD_INSTANCE success or error
// This brackets the SystemDictionary updates for both defining
@@ -1140,11 +1166,6 @@
return load_shared_class(ik, class_loader, THREAD);
}
-// Note well! Changes to this method may affect oop access order
-// in the shared archive. Please take care to not make changes that
-// adversely affect cold start time by changing the oop access order
-// that is specified in dump.cpp MarkAndMoveOrderedReadOnly and
-// MarkAndMoveOrderedReadWrite closures.
instanceKlassHandle SystemDictionary::load_shared_class(
instanceKlassHandle ik, Handle class_loader, TRAPS) {
assert(class_loader.is_null(), "non-null classloader for shared class?");
@@ -1205,6 +1226,19 @@
return ik;
}
+void SystemDictionary::clean_up_shared_class(instanceKlassHandle ik, Handle class_loader, TRAPS) {
+ // Updating methods must be done under a lock so multiple
+ // threads don't update these in parallel
+ // Shared classes are all currently loaded by the bootstrap
+ // classloader, so this will never cause a deadlock on
+ // a custom class loader lock.
+ {
+ Handle lockObject = compute_loader_lock_object(class_loader, THREAD);
+ check_loader_lock_contention(lockObject, THREAD);
+ ObjectLocker ol(lockObject, THREAD, true);
+ ik->remove_unshareable_info();
+ }
+}
instanceKlassHandle SystemDictionary::load_instance_class(Symbol* class_name, Handle class_loader, TRAPS) {
instanceKlassHandle nh = instanceKlassHandle(); // null Handle
--- a/hotspot/src/share/vm/classfile/systemDictionary.hpp Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/src/share/vm/classfile/systemDictionary.hpp Sun Mar 17 08:57:56 2013 -0700
@@ -621,6 +621,7 @@
Handle class_loader, TRAPS);
static instanceKlassHandle load_shared_class(instanceKlassHandle ik,
Handle class_loader, TRAPS);
+ static void clean_up_shared_class(instanceKlassHandle ik, Handle class_loader, TRAPS);
static instanceKlassHandle load_instance_class(Symbol* class_name, Handle class_loader, TRAPS);
static Handle compute_loader_lock_object(Handle class_loader, TRAPS);
static void check_loader_lock_contention(Handle loader_lock, TRAPS);
--- a/hotspot/src/share/vm/memory/metaspace.cpp Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/src/share/vm/memory/metaspace.cpp Sun Mar 17 08:57:56 2013 -0700
@@ -334,6 +334,9 @@
// byte_size is the size of the associated virtualspace.
VirtualSpaceNode::VirtualSpaceNode(size_t byte_size) : _top(NULL), _next(NULL), _rs(0) {
+ // align up to vm allocation granularity
+ byte_size = align_size_up(byte_size, os::vm_allocation_granularity());
+
// This allocates memory with mmap. For DumpSharedspaces, allocate the
// space at low memory so that other shared images don't conflict.
// This is the same address as memory needed for UseCompressedOops but
--- a/hotspot/src/share/vm/oops/klass.cpp Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/src/share/vm/oops/klass.cpp Sun Mar 17 08:57:56 2013 -0700
@@ -486,6 +486,12 @@
}
void Klass::remove_unshareable_info() {
+ if (!DumpSharedSpaces) {
+ // Clean up after OOM during class loading
+ if (class_loader_data() != NULL) {
+ class_loader_data()->remove_class(this);
+ }
+ }
set_subklass(NULL);
set_next_sibling(NULL);
// Clear the java mirror
--- a/hotspot/src/share/vm/oops/method.cpp Fri Mar 15 11:44:33 2013 -0700
+++ b/hotspot/src/share/vm/oops/method.cpp Sun Mar 17 08:57:56 2013 -0700
@@ -798,7 +798,15 @@
backedge_counter()->reset();
_adapter = NULL;
_from_compiled_entry = NULL;
- assert(_method_data == NULL, "unexpected method data?");
+
+ // In case of DumpSharedSpaces, _method_data should always be NULL.
+ //
+ // During runtime (!DumpSharedSpaces), when we are cleaning a
+ // shared class that failed to load, this->link_method() may
+ // have already been called (before an exception happened), so
+ // this->_method_data may not be NULL.
+ assert(!DumpSharedSpaces || _method_data == NULL, "unexpected method data?");
+
set_method_data(NULL);
set_interpreter_throwout_count(0);
set_interpreter_invocation_count(0);