path: root/debian/patches/kfreebsd-support-hotspot.diff

Description: Initial GNU/kFreeBSD support for openjdk-7 (Hotspot part)
 - Alter build system to consider GNU/kFreeBSD like linux
   since this port is libc based.
   Also treat i386 arch has i686 (uname -m return i386 on BSD*)
   openjdk/hotspot/make/defs.make
 - Use LOCAL_PEERCRED (from kFreeBSD kernel) instead of
   SO_PEERCRED and alter related structs.
   openjdk/hotspot/src/os/linux/vm/attachListener_linux.cpp
 - Use sysctl call instead of sysinfo.
   openjdk/hotspot/src/os/linux/vm/os_linux.cpp
 - Change access to CPU register
   openjdk/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp
   openjdk/hotspot/agent/src/os/linux/LinuxDebuggerLocal.c
   openjdk/hotspot/agent/src/os/linux/libproc.h
   openjdk/hotspot/agent/src/os/linux/ps_core.c
   (from bsd-port)
 - Fix ptrace usage under freebsd kernel
   openjdk/hotspot/agent/src/os/linux/ps_proc.c
 Should not be keep like this :
 - Undefined UINTPTR_MAX
   openjdk/hotspot/src/share/vm/memory/allocation.hpp
   openjdk/hotspot/src/share/vm/oops/generateOopMap.cpp
Author: Damien Raude-Morvan <drazzib@debian.org>
Last-Update: 2012-03-05
Forwarded: no
--- openjdk/hotspot/agent/src/os/linux/LinuxDebuggerLocal.c.orig
+++ openjdk/hotspot/agent/src/os/linux/LinuxDebuggerLocal.c
@@ -316,7 +316,7 @@
 
 #ifdef i386
 #define REG_INDEX(reg) sun_jvm_hotspot_debugger_x86_X86ThreadContext_##reg
-
+#ifdef __linux__
   regs[REG_INDEX(GS)]  = (uintptr_t) gregs.xgs;
   regs[REG_INDEX(FS)]  = (uintptr_t) gregs.xfs;
   regs[REG_INDEX(ES)]  = (uintptr_t) gregs.xes;
@@ -332,7 +332,23 @@
   regs[REG_INDEX(PC)] = (uintptr_t) gregs.eip;
   regs[REG_INDEX(CS)]  = (uintptr_t) gregs.xcs;
   regs[REG_INDEX(SS)]  = (uintptr_t) gregs.xss;
-
+#elif defined(__FreeBSD_kernel__)
+  regs[REG_INDEX(GS)]  = (uintptr_t) gregs.r_gs;
+  regs[REG_INDEX(FS)]  = (uintptr_t) gregs.r_fs;
+  regs[REG_INDEX(ES)]  = (uintptr_t) gregs.r_es;
+  regs[REG_INDEX(DS)]  = (uintptr_t) gregs.r_ds;
+  regs[REG_INDEX(EDI)] = (uintptr_t) gregs.r_edi;
+  regs[REG_INDEX(ESI)] = (uintptr_t) gregs.r_esi;
+  regs[REG_INDEX(FP)] = (uintptr_t) gregs.r_ebp;
+  regs[REG_INDEX(SP)] = (uintptr_t) gregs.r_isp;
+  regs[REG_INDEX(EBX)] = (uintptr_t) gregs.r_ebx;
+  regs[REG_INDEX(EDX)] = (uintptr_t) gregs.r_edx;
+  regs[REG_INDEX(ECX)] = (uintptr_t) gregs.r_ecx;
+  regs[REG_INDEX(EAX)] = (uintptr_t) gregs.r_eax;
+  regs[REG_INDEX(PC)] = (uintptr_t) gregs.r_eip;
+  regs[REG_INDEX(CS)]  = (uintptr_t) gregs.r_cs;
+  regs[REG_INDEX(SS)]  = (uintptr_t) gregs.r_ss;
+#endif
 #endif /* i386 */
 
 #if ia64
@@ -344,7 +360,7 @@
 
 #ifdef amd64
 #define REG_INDEX(reg) sun_jvm_hotspot_debugger_amd64_AMD64ThreadContext_##reg
-
+#ifdef __linux__
   regs[REG_INDEX(R15)] = gregs.r15;
   regs[REG_INDEX(R14)] = gregs.r14;
   regs[REG_INDEX(R13)] = gregs.r13;
@@ -370,7 +386,27 @@
   regs[REG_INDEX(ES)] = gregs.es;
   regs[REG_INDEX(FS)] = gregs.fs;
   regs[REG_INDEX(GS)] = gregs.gs;
-
+#elif defined(__FreeBSD_kernel__)
+  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;
+#endif
 #endif /* amd64 */
 
 #if defined(sparc) || defined(sparcv9)
--- openjdk/hotspot/agent/src/os/linux/libproc.h.orig
+++ openjdk/hotspot/agent/src/os/linux/libproc.h
@@ -27,6 +27,10 @@
 
 #include <unistd.h>
 #include <stdint.h>
+#if defined(__FreeBSD_kernel__)
+#include <sys/types.h>
+#include <machine/reg.h>
+#endif
 #include "proc_service.h"
 
 #if defined(sparc) || defined(sparcv9)
@@ -112,6 +116,10 @@
 #define user_regs_struct  pt_regs
 #endif
 
+#if defined(__FreeBSD_kernel__)
+#define user_regs_struct reg
+#endif
+
 // This C bool type must be int for compatibility with Linux calls and
 // it would be a mistake to equivalence it to C++ bool on many platforms
 
--- openjdk/hotspot/agent/src/os/linux/ps_core.c.orig
+++ openjdk/hotspot/agent/src/os/linux/ps_core.c
@@ -539,11 +539,16 @@
       return false;
 
    // copy regs
+#if defined(__FreeBSD_kernel__)
+   memcpy(&newthr->regs, &prstat->pr_reg, sizeof(struct user_regs_struct));
+#else
    memcpy(&newthr->regs, prstat->pr_reg, sizeof(struct user_regs_struct));
+#endif
 
    if (is_debug()) {
       print_debug("integer regset\n");
 #ifdef i386
+#ifdef __linux__
       // print the regset
       print_debug("\teax = 0x%x\n", newthr->regs.eax);
       print_debug("\tebx = 0x%x\n", newthr->regs.ebx);
@@ -554,9 +559,21 @@
       print_debug("\tesi = 0x%x\n", newthr->regs.esi);
       print_debug("\tedi = 0x%x\n", newthr->regs.edi);
       print_debug("\teip = 0x%x\n", newthr->regs.eip);
+#elif defined(__FreeBSD_kernel__)
+      print_debug("\teax = 0x%x\n", newthr->regs.r_eax);
+      print_debug("\tebx = 0x%x\n", newthr->regs.r_ebx);
+      print_debug("\tecx = 0x%x\n", newthr->regs.r_ecx);
+      print_debug("\tedx = 0x%x\n", newthr->regs.r_edx);
+      print_debug("\tesp = 0x%x\n", newthr->regs.r_esp);
+      print_debug("\tebp = 0x%x\n", newthr->regs.r_ebp);
+      print_debug("\tesi = 0x%x\n", newthr->regs.r_esi);
+      print_debug("\tedi = 0x%x\n", newthr->regs.r_edi);
+      print_debug("\teip = 0x%x\n", newthr->regs.r_eip);
+#endif
 #endif
 
 #if defined(amd64) || defined(x86_64)
+#ifdef __linux__
       // print the regset
       print_debug("\tr15 = 0x%lx\n", newthr->regs.r15);
       print_debug("\tr14 = 0x%lx\n", newthr->regs.r14);
@@ -585,6 +602,27 @@
       print_debug("\tes = 0x%lx\n", newthr->regs.es);
       print_debug("\tfs = 0x%lx\n", newthr->regs.fs);
       print_debug("\tgs = 0x%lx\n", newthr->regs.gs);
+#elif defined(__FreeBSD_kernel__)
+      print_debug("\tr15 = 0x%lx\n", newthr->regs.r_r15);
+      print_debug("\tr14 = 0x%lx\n", newthr->regs.r_r14);
+      print_debug("\tr13 = 0x%lx\n", newthr->regs.r_r13);
+      print_debug("\tr12 = 0x%lx\n", newthr->regs.r_r12);
+      print_debug("\trbp = 0x%lx\n", newthr->regs.r_rbp);
+      print_debug("\trbx = 0x%lx\n", newthr->regs.r_rbx);
+      print_debug("\tr11 = 0x%lx\n", newthr->regs.r_r11);
+      print_debug("\tr10 = 0x%lx\n", newthr->regs.r_r10);
+      print_debug("\tr9 = 0x%lx\n", newthr->regs.r_r9);
+      print_debug("\tr8 = 0x%lx\n", newthr->regs.r_r8);
+      print_debug("\trax = 0x%lx\n", newthr->regs.r_rax);
+      print_debug("\trcx = 0x%lx\n", newthr->regs.r_rcx);
+      print_debug("\trdx = 0x%lx\n", newthr->regs.r_rdx);
+      print_debug("\trsi = 0x%lx\n", newthr->regs.r_rsi);
+      print_debug("\trdi = 0x%lx\n", newthr->regs.r_rdi);
+      print_debug("\trip = 0x%lx\n", newthr->regs.r_rip);
+      print_debug("\tcs = 0x%lx\n", newthr->regs.r_cs);
+      print_debug("\trsp = 0x%lx\n", newthr->regs.r_rsp);
+      print_debug("\tss = 0x%lx\n", newthr->regs.r_ss);
+#endif
 #endif
    }
 
--- openjdk/hotspot/agent/src/os/linux/ps_proc.c.orig
+++ openjdk/hotspot/agent/src/os/linux/ps_proc.c
@@ -37,6 +37,18 @@
 #define __WALL          0x40000000  // Copied from /usr/include/linux/wait.h
 #endif
 
+#ifndef PTRACE_PEEKDATA
+#define PTRACE_PEEKDATA PT_READ_D
+#endif
+
+#ifndef PTRACE_ATTACH
+#define PTRACE_ATTACH PT_ATTACH
+#endif
+
+#ifndef PTRACE_DETACH
+#define PTRACE_DETACH PT_DETACH
+#endif
+
 // This file has the libproc implementation specific to live process
 // For core files, refer to ps_core.c
 
@@ -54,7 +66,11 @@
 // before calling process_read_data.
 
 static bool process_read_data(struct ps_prochandle* ph, uintptr_t addr, char *buf, size_t size) {
+#if defined(__FreeBSD_kernel__)
+  int rslt;
+#else
   long rslt;
+#endif
   size_t i, words;
   uintptr_t end_addr = addr + size;
   uintptr_t aligned_addr = align(addr, sizeof(long));
@@ -62,36 +78,62 @@
   if (aligned_addr != addr) {
     char *ptr = (char *)&rslt;
     errno = 0;
+#if defined(__FreeBSD_kernel__)
+    rslt = ptrace(PTRACE_PEEKDATA, ph->pid, (caddr_t) aligned_addr, 0);
+#else
     rslt = ptrace(PTRACE_PEEKDATA, ph->pid, aligned_addr, 0);
+#endif
     if (errno) {
       print_debug("ptrace(PTRACE_PEEKDATA, ..) failed for %d bytes @ %lx\n", size, addr);
       return false;
     }
     for (; aligned_addr != addr; aligned_addr++, ptr++);
+#if defined(__FreeBSD_kernel__)
+    for (; ((intptr_t)aligned_addr % sizeof(int)) && aligned_addr < end_addr;
+#else
     for (; ((intptr_t)aligned_addr % sizeof(long)) && aligned_addr < end_addr;
+#endif
         aligned_addr++)
        *(buf++) = *(ptr++);
   }
 
+#if defined(__FreeBSD_kernel__)
+  words = (end_addr - aligned_addr) / sizeof(int);
+#else
   words = (end_addr - aligned_addr) / sizeof(long);
+#endif
 
   // assert((intptr_t)aligned_addr % sizeof(long) == 0);
   for (i = 0; i < words; i++) {
     errno = 0;
+#if defined(__FreeBSD_kernel__)
+    rslt = ptrace(PTRACE_PEEKDATA, ph->pid, (caddr_t) aligned_addr, 0);
+#else
     rslt = ptrace(PTRACE_PEEKDATA, ph->pid, aligned_addr, 0);
+#endif
     if (errno) {
       print_debug("ptrace(PTRACE_PEEKDATA, ..) failed for %d bytes @ %lx\n", size, addr);
       return false;
     }
+#if defined(__FreeBSD_kernel__)
+    *(int *)buf = rslt;
+    buf += sizeof(int);
+    aligned_addr += sizeof(int);
+#else
     *(long *)buf = rslt;
     buf += sizeof(long);
     aligned_addr += sizeof(long);
+#endif
   }
 
   if (aligned_addr != end_addr) {
     char *ptr = (char *)&rslt;
     errno = 0;
+#if defined(__FreeBSD_kernel__)
+    rslt = ptrace(PTRACE_PEEKDATA, ph->pid, (caddr_t) aligned_addr, 0);
+#else
     rslt = ptrace(PTRACE_PEEKDATA, ph->pid, aligned_addr, 0);
+#endif
     if (errno) {
       print_debug("ptrace(PTRACE_PEEKDATA, ..) failed for %d bytes @ %lx\n", size, addr);
       return false;
@@ -130,7 +172,11 @@
 #endif
 
 #ifdef PTRACE_GETREGS_REQ
+#if defined(__FreeBSD_kernel__)
+ if (ptrace_getregs(PTRACE_GETREGS_REQ, pid, (caddr_t) user, 0) < 0) {
+#else
  if (ptrace_getregs(PTRACE_GETREGS_REQ, pid, user, NULL) < 0) {
+#endif
    print_debug("ptrace(PTRACE_GETREGS, ...) failed for lwp %d\n", pid);
    return false;
  }
@@ -144,7 +190,11 @@
 
 // attach to a process/thread specified by "pid"
 static bool ptrace_attach(pid_t pid) {
+#if defined(__FreeBSD_kernel__)
+  if (ptrace(PTRACE_ATTACH, pid, NULL, 0) < 0) {
+#else
   if (ptrace(PTRACE_ATTACH, pid, NULL, NULL) < 0) {
+#endif
     print_debug("ptrace(PTRACE_ATTACH, ..) failed for %d\n", pid);
     return false;
   } else {
@@ -271,7 +321,11 @@
 
 // detach a given pid
 static bool ptrace_detach(pid_t pid) {
+#if defined(__FreeBSD_kernel__)
+  if (pid && ptrace(PTRACE_DETACH, pid, NULL, 0) < 0) {
+#else
   if (pid && ptrace(PTRACE_DETACH, pid, NULL, NULL) < 0) {
+#endif
     print_debug("ptrace(PTRACE_DETACH, ..) failed for %d\n", pid);
     return false;
   } else {
--- openjdk/hotspot/make/defs.make.orig
+++ openjdk/hotspot/make/defs.make
@@ -132,6 +132,10 @@
   OSNAME=linux
 endif
 
+ifeq ($(OS), GNU/kFreeBSD)
+  OSNAME=linux
+endif
+
 # Determinations of default make arguments and platform specific settings
 MAKE_ARGS=
 
--- openjdk/hotspot/make/linux/Makefile.orig
+++ openjdk/hotspot/make/linux/Makefile
@@ -234,6 +234,9 @@
 SUPPORTED_OS_VERSION = 2.4% 2.5% 2.6% 3%
 OS_VERSION := $(shell uname -r)
 EMPTY_IF_NOT_SUPPORTED = $(filter $(SUPPORTED_OS_VERSION),$(OS_VERSION))
+ifeq ($(shell uname -s), GNU/kFreeBSD)
+EMPTY_IF_NOT_SUPPORTED = supported
+endif
 
 check_os_version:
 ifeq ($(DISABLE_HOTSPOT_OS_VERSION_CHECK)$(EMPTY_IF_NOT_SUPPORTED),)
--- openjdk/hotspot/make/linux/makefiles/defs.make.orig
+++ openjdk/hotspot/make/linux/makefiles/defs.make
@@ -91,7 +91,7 @@
 endif
 
 # i686
-ifeq ($(ARCH), i686)
+ifneq (,$(filter i686 i386, $(ARCH)))
   ARCH_DATA_MODEL  = 32
   PLATFORM         = linux-i586
   VM_PLATFORM      = linux_i486
--- openjdk/hotspot/src/os/linux/vm/attachListener_linux.cpp.orig
+++ openjdk/hotspot/src/os/linux/vm/attachListener_linux.cpp
@@ -39,6 +39,10 @@
 #define UNIX_PATH_MAX   sizeof(((struct sockaddr_un *)0)->sun_path)
 #endif
 
+#if defined(__FreeBSD_kernel__)
+#include <sys/ucred.h>
+#endif
+
 // The attach mechanism on Linux uses a UNIX domain socket. An attach listener
 // thread is created at startup or is created on-demand via a signal from
 // the client tool. The attach listener creates a socket and binds it to a file
@@ -337,9 +341,15 @@
 
     // get the credentials of the peer and check the effective uid/guid
     // - check with jeff on this.
+#if defined(LOCAL_PEERCRED) /* GNU/kFreeBSD */
+    struct xucred cred_info;
+    socklen_t optlen = sizeof(cred_info);
+    if (::getsockopt(s, SOL_SOCKET, LOCAL_PEERCRED, (void*)&cred_info, &optlen) == -1) {
+#else
     struct ucred cred_info;
     socklen_t optlen = sizeof(cred_info);
     if (::getsockopt(s, SOL_SOCKET, SO_PEERCRED, (void*)&cred_info, &optlen) == -1) {
+#endif
       int res;
       RESTARTABLE(::close(s), res);
       continue;
@@ -347,10 +357,14 @@
     uid_t euid = geteuid();
     gid_t egid = getegid();
 
+#if defined(LOCAL_PEERCRED) /* GNU/kFreeBSD */
+    if (cred_info.cr_uid != euid || cred_info.cr_gid != egid) {
+#else
     if (cred_info.uid != euid || cred_info.gid != egid) {
-      int res;
+#endif
+      int res;   
       RESTARTABLE(::close(s), res);
-      continue;
+      continue;  
     }
 
     // peer credential look okay so we read the request
--- openjdk/hotspot/src/os/linux/vm/jvm_linux.cpp.orig
+++ openjdk/hotspot/src/os/linux/vm/jvm_linux.cpp
@@ -169,7 +169,9 @@
   "WINCH",      SIGWINCH,       /* Window size change (4.3 BSD, Sun).  */
   "POLL",       SIGPOLL,        /* Pollable event occurred (System V).  */
   "IO",         SIGIO,          /* I/O now possible (4.2 BSD).  */
+#ifdef SIGPWR
   "PWR",        SIGPWR,         /* Power failure restart (System V).  */
+#endif
 #ifdef SIGSYS
   "SYS",        SIGSYS          /* Bad system call. Only on some Linuxen! */
 #endif
--- openjdk/hotspot/src/os/linux/vm/os_linux.cpp.orig
+++ openjdk/hotspot/src/os/linux/vm/os_linux.cpp
@@ -115,8 +115,13 @@
 # include <semaphore.h>
 # include <fcntl.h>
 # include <string.h>
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+# include <sys/param.h>
+# include <sys/sysctl.h>
+#else
 # include <syscall.h>
 # include <sys/sysinfo.h>
+#endif
 # include <gnu/libc-version.h>
 # include <sys/ipc.h>
 # include <sys/shm.h>
@@ -127,6 +132,10 @@
 
 #define MAX_PATH    (2 * K)
 
+#ifndef ETIME
+#define ETIME ETIMEDOUT
+#endif
+
 // for timer info max values which include all bits
 #define ALL_64_BITS CONST64(0xFFFFFFFFFFFFFFFF)
 #define SEC_IN_NANOSECS  1000000000LL
@@ -208,11 +217,22 @@
 }
 
 julong os::Linux::available_memory() {
+#ifndef __FreeBSD_kernel__
   // values in struct sysinfo are "unsigned long"
   struct sysinfo si;
   sysinfo(&si);
 
   return (julong)si.freeram * si.mem_unit;
+#else
+  int mib[2] = {CTL_HW, HW_USERMEM}, mem;
+  size_t len;
+  len = sizeof(mem);
+  if (sysctl(mib, 2, &mem, &len, NULL, 0) == 0) {
+    return (julong) mem;
+  } else {
+    return 0;
+  }
+#endif
 }
 
 julong os::physical_memory() {
@@ -2161,18 +2181,22 @@
   st->print("Memory:");
   st->print(" %dk page", os::vm_page_size()>>10);
 
+#ifndef __FreeBSD_kernel__
   // values in struct sysinfo are "unsigned long"
   struct sysinfo si;
   sysinfo(&si);
+#endif
 
   st->print(", physical " UINT64_FORMAT "k",
             os::physical_memory() >> 10);
   st->print("(" UINT64_FORMAT "k free)",
             os::available_memory() >> 10);
+#ifndef __FreeBSD_kernel__
   st->print(", swap " UINT64_FORMAT "k",
             ((jlong)si.totalswap * si.mem_unit) >> 10);
   st->print("(" UINT64_FORMAT "k free)",
             ((jlong)si.freeswap * si.mem_unit) >> 10);
+#endif
   st->cr();
 }
 
@@ -5389,6 +5413,7 @@
 int os::fork_and_exec(char* cmd) {
   const char * argv[4] = {"sh", "-c", cmd, NULL};
 
+#ifdef __linux__
   // fork() in LinuxThreads/NPTL is not async-safe. It needs to run
   // pthread_atfork handlers and reset pthread library. All we need is a
   // separate process to execve. Make a direct syscall to fork process.
@@ -5396,6 +5421,9 @@
   // the best...
   pid_t pid = NOT_IA64(syscall(__NR_fork);)
               IA64_ONLY(fork();)
+#else
+  pid_t pid = fork();
+#endif
 
   if (pid < 0) {
     // fork failed
@@ -5404,6 +5432,7 @@
   } else if (pid == 0) {
     // child process
 
+#ifdef __linux__
     // execve() in LinuxThreads will call pthread_kill_other_threads_np()
     // first to kill every thread on the thread list. Because this list is
     // not reset by fork() (see notes above), execve() will instead kill
@@ -5413,6 +5442,9 @@
     // above.
     NOT_IA64(syscall(__NR_execve, "/bin/sh", argv, environ);)
     IA64_ONLY(execve("/bin/sh", (char* const*)argv, environ);)
+#else
+    execve("/bin/sh", (char* const*)argv, environ);
+#endif
 
     // execve failed
     _exit(-1);
--- openjdk/hotspot/src/os/posix/launcher/java_md.c.orig
+++ openjdk/hotspot/src/os/posix/launcher/java_md.c
@@ -41,7 +41,7 @@
 #include "version_comp.h"
 #endif
 
-#ifdef __linux__
+#if defined(__linux__) || defined(__GLIBC__)
 #include <pthread.h>
 #else
 #include <thread.h>
@@ -89,7 +89,7 @@
  *      A collection of useful strings. One should think of these as #define
  *      entries, but actual strings can be more efficient (with many compilers).
  */
-#ifdef __linux__
+#if defined(__linux__) || defined(__GLIBC__)
 static const char *system_dir   = "/usr/java";
 static const char *user_dir     = "/java";
 #else /* Solaris */
@@ -426,7 +426,7 @@
       runpath = getenv("LD_LIBRARY_PATH");
 #endif /* __sun */
 
-#ifdef __linux
+#if defined(__linux__) || defined(__GLIBC__)
       /*
        * On linux, if a binary is running as sgid or suid, glibc sets
        * LD_LIBRARY_PATH to the empty string for security purposes.  (In
@@ -792,7 +792,7 @@
 jboolean
 GetApplicationHome(char *buf, jint bufsize)
 {
-#ifdef __linux__
+#if defined(__linux__) || defined(__GLIBC__)
     char *execname = GetExecname();
     if (execname) {
         strncpy(buf, execname, bufsize-1);
@@ -961,7 +961,7 @@
             }
         }
     }
-#elif defined(__linux__)
+#elif defined(__linux__) || defined(__GLIBC__)
     {
         const char* self = "/proc/self/exe";
         char buf[PATH_MAX+1];
@@ -1821,7 +1821,7 @@
 int
 ContinueInNewThread(int (JNICALL *continuation)(void *), jlong stack_size, void * args) {
     int rslt;
-#ifdef __linux__
+#if defined(__linux__) || defined(__GLIBC__)
     pthread_t tid;
     pthread_attr_t attr;
     pthread_attr_init(&attr);
--- openjdk/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp.orig
+++ openjdk/hotspot/src/os_cpu/linux_x86/vm/os_linux_x86.cpp
@@ -81,6 +81,7 @@
 # include <ucontext.h>
 # include <fpu_control.h>
 
+#ifdef __linux__
 #ifdef AMD64
 #define REG_SP REG_RSP
 #define REG_PC REG_RIP
@@ -94,6 +95,54 @@
 #define SPELL_REG_SP "esp"
 #define SPELL_REG_FP "ebp"
 #endif // AMD64
+#endif
+
+#if defined(__FreeBSD_kernel__)
+#define context_trapno uc_mcontext.mc_trapno
+#ifdef AMD64
+#define SPELL_REG_SP "rsp"
+#define SPELL_REG_FP "rbp"
+#define context_sp uc_mcontext.mc_rsp
+#define context_pc uc_mcontext.mc_rip
+#define context_fp uc_mcontext.mc_rbp
+#define context_rip uc_mcontext.mc_rip
+#define context_rsp uc_mcontext.mc_rsp
+#define context_rbp uc_mcontext.mc_rbp
+#define context_flags uc_mcontext.mc_flags
+#define context_err uc_mcontext.mc_err
+#define context_rax uc_mcontext.mc_rax
+#define context_rbx uc_mcontext.mc_rbx
+#define context_rcx uc_mcontext.mc_rcx
+#define context_rdx uc_mcontext.mc_rdx
+#define context_rsi uc_mcontext.mc_rsi
+#define context_rdi uc_mcontext.mc_rdi
+#define context_r8 uc_mcontext.mc_r8
+#define context_r9 uc_mcontext.mc_r9
+#define context_r10 uc_mcontext.mc_r10
+#define context_r11 uc_mcontext.mc_r11
+#define context_r12 uc_mcontext.mc_r12
+#define context_r13 uc_mcontext.mc_r13
+#define context_r14 uc_mcontext.mc_r14
+#define context_r15 uc_mcontext.mc_r15
+#else
+#define SPELL_REG_SP "esp"
+#define SPELL_REG_FP "ebp"
+#define context_sp uc_mcontext.mc_esp
+#define context_pc uc_mcontext.mc_eip
+#define context_fp uc_mcontext.mc_ebp
+#define context_eip uc_mcontext.mc_eip
+#define context_esp uc_mcontext.mc_esp
+#define context_eax uc_mcontext.mc_eax
+#define context_ebx uc_mcontext.mc_ebx
+#define context_ecx uc_mcontext.mc_ecx
+#define context_edx uc_mcontext.mc_edx
+#define context_ebp uc_mcontext.mc_ebp
+#define context_esi uc_mcontext.mc_esi
+#define context_edi uc_mcontext.mc_edi
+#define context_eflags uc_mcontext.mc_eflags
+#define context_trapno uc_mcontext.mc_trapno
+#endif // AMD64
+#endif
 
 address os::current_stack_pointer() {
 #ifdef SPARC_WORKS
@@ -119,15 +168,27 @@
 }
 
 address os::Linux::ucontext_get_pc(ucontext_t * uc) {
+#if defined(__FreeBSD_kernel__)
+  return (address)uc->context_pc;
+#else
   return (address)uc->uc_mcontext.gregs[REG_PC];
+#endif
 }
 
 intptr_t* os::Linux::ucontext_get_sp(ucontext_t * uc) {
+#if defined(__FreeBSD_kernel__)
+  return (intptr_t*)uc->context_sp;
+#else
   return (intptr_t*)uc->uc_mcontext.gregs[REG_SP];
+#endif
 }
 
 intptr_t* os::Linux::ucontext_get_fp(ucontext_t * uc) {
+#if defined(__FreeBSD_kernel__)
+  return (intptr_t*)uc->context_fp;
+#else
   return (intptr_t*)uc->uc_mcontext.gregs[REG_FP];
+#endif
 }
 
 // For Forte Analyzer AsyncGetCallTrace profiling support - thread
@@ -279,12 +340,20 @@
     pc = (address) os::Linux::ucontext_get_pc(uc);
 
     if (pc == (address) Fetch32PFI) {
+#if defined(__FreeBSD_kernel__)
+       uc->context_pc = intptr_t(Fetch32Resume) ;
+#else
        uc->uc_mcontext.gregs[REG_PC] = intptr_t(Fetch32Resume) ;
+#endif
        return 1 ;
     }
 #ifdef AMD64
     if (pc == (address) FetchNPFI) {
+#if defined(__FreeBSD_kernel__)
+       uc->context_pc = intptr_t (FetchNResume) ;
+#else
        uc->uc_mcontext.gregs[REG_PC] = intptr_t (FetchNResume) ;
+#endif
        return 1 ;
     }
 #endif // AMD64
@@ -430,7 +499,11 @@
   // Furthermore, a false-positive should be harmless.
   if (UnguardOnExecutionViolation > 0 &&
       (sig == SIGSEGV || sig == SIGBUS) &&
+#if defined(__FreeBSD_kernel__)
+      uc->context_trapno == trap_page_fault) {
+#else
       uc->uc_mcontext.gregs[REG_TRAPNO] == trap_page_fault) {
+#endif
     int page_size = os::vm_page_size();
     address addr = (address) info->si_addr;
     address pc = os::Linux::ucontext_get_pc(uc);
@@ -500,7 +573,11 @@
     // save all thread context in case we need to restore it
     if (thread != NULL) thread->set_saved_exception_pc(pc);
 
+#if defined(__FreeBSD_kernel__)
+    uc->context_pc = (intptr_t)stub;
+#else
     uc->uc_mcontext.gregs[REG_PC] = (greg_t)stub;
+#endif
     return true;
   }
 
@@ -752,6 +829,7 @@
 
   ucontext_t *uc = (ucontext_t*)context;
   st->print_cr("Registers:");
+#ifdef __linux__
 #ifdef AMD64
   st->print(  "RAX=" INTPTR_FORMAT, uc->uc_mcontext.gregs[REG_RAX]);
   st->print(", RBX=" INTPTR_FORMAT, uc->uc_mcontext.gregs[REG_RBX]);
@@ -794,6 +872,48 @@
   st->print(", EFLAGS=" INTPTR_FORMAT, uc->uc_mcontext.gregs[REG_EFL]);
   st->print(", CR2=" INTPTR_FORMAT, uc->uc_mcontext.cr2);
 #endif // AMD64
+#elif defined(__FreeBSD_kernel__)
+#ifdef AMD64
+  st->print(  "RAX=" INTPTR_FORMAT, uc->context_rax);
+  st->print(", RBX=" INTPTR_FORMAT, uc->context_rbx);
+  st->print(", RCX=" INTPTR_FORMAT, uc->context_rcx);
+  st->print(", RDX=" INTPTR_FORMAT, uc->context_rdx);
+  st->cr();
+  st->print(  "RSP=" INTPTR_FORMAT, uc->context_rsp);
+  st->print(", RBP=" INTPTR_FORMAT, uc->context_rbp);
+  st->print(", RSI=" INTPTR_FORMAT, uc->context_rsi);
+  st->print(", RDI=" INTPTR_FORMAT, uc->context_rdi);
+  st->cr();
+  st->print(  "R8 =" INTPTR_FORMAT, uc->context_r8);
+  st->print(", R9 =" INTPTR_FORMAT, uc->context_r9);
+  st->print(", R10=" INTPTR_FORMAT, uc->context_r10);
+  st->print(", R11=" INTPTR_FORMAT, uc->context_r11);
+  st->cr();
+  st->print(  "R12=" INTPTR_FORMAT, uc->context_r12);
+  st->print(", R13=" INTPTR_FORMAT, uc->context_r13);
+  st->print(", R14=" INTPTR_FORMAT, uc->context_r14);
+  st->print(", R15=" INTPTR_FORMAT, uc->context_r15);
+  st->cr();
+  st->print(  "RIP=" INTPTR_FORMAT, uc->context_rip);
+  st->print(", EFLAGS=" INTPTR_FORMAT, uc->context_flags);
+  st->print(", ERR=" INTPTR_FORMAT, uc->context_err);
+  st->cr();
+  st->print("  TRAPNO=" INTPTR_FORMAT, uc->context_trapno);
+#else
+  st->print(  "EAX=" INTPTR_FORMAT, uc->context_eax);
+  st->print(", EBX=" INTPTR_FORMAT, uc->context_ebx);
+  st->print(", ECX=" INTPTR_FORMAT, uc->context_ecx);
+  st->print(", EDX=" INTPTR_FORMAT, uc->context_edx);
+  st->cr();
+  st->print(  "ESP=" INTPTR_FORMAT, uc->context_esp);
+  st->print(", EBP=" INTPTR_FORMAT, uc->context_ebp);
+  st->print(", ESI=" INTPTR_FORMAT, uc->context_esi);
+  st->print(", EDI=" INTPTR_FORMAT, uc->context_edi);
+  st->cr();
+  st->print(  "EIP=" INTPTR_FORMAT, uc->context_eip);
+  st->print(", EFLAGS=" INTPTR_FORMAT, uc->context_eflags);
+#endif // AMD64
+#endif
   st->cr();
   st->cr();
 
@@ -824,6 +944,7 @@
 
   // this is only for the "general purpose" registers
 
+#ifdef __linux__
 #ifdef AMD64
   st->print("RAX="); print_location(st, uc->uc_mcontext.gregs[REG_RAX]);
   st->print("RBX="); print_location(st, uc->uc_mcontext.gregs[REG_RBX]);
@@ -851,6 +972,35 @@
   st->print("ESI="); print_location(st, uc->uc_mcontext.gregs[REG_ESI]);
   st->print("EDI="); print_location(st, uc->uc_mcontext.gregs[REG_EDI]);
 #endif // AMD64
+#elif defined(__FreeBSD_kernel__)
+#ifdef AMD64
+  st->print("RAX="); print_location(st, uc->context_rax);
+  st->print("RBX="); print_location(st, uc->context_rbx);
+  st->print("RCX="); print_location(st, uc->context_rcx);
+  st->print("RDX="); print_location(st, uc->context_rdx);
+  st->print("RSP="); print_location(st, uc->context_rsp);
+  st->print("RBP="); print_location(st, uc->context_rbp);
+  st->print("RSI="); print_location(st, uc->context_rsi);
+  st->print("RDI="); print_location(st, uc->context_rdi);
+  st->print("R8 ="); print_location(st, uc->context_r8);
+  st->print("R9 ="); print_location(st, uc->context_r9);
+  st->print("R10="); print_location(st, uc->context_r10);
+  st->print("R11="); print_location(st, uc->context_r11);
+  st->print("R12="); print_location(st, uc->context_r12);
+  st->print("R13="); print_location(st, uc->context_r13);
+  st->print("R14="); print_location(st, uc->context_r14);
+  st->print("R15="); print_location(st, uc->context_r15);
+#else
+  st->print("EAX="); print_location(st, uc->context_eax);
+  st->print("EBX="); print_location(st, uc->context_ebx);
+  st->print("ECX="); print_location(st, uc->context_ecx);
+  st->print("EDX="); print_location(st, uc->context_edx);
+  st->print("ESP="); print_location(st, uc->context_esp);
+  st->print("EBP="); print_location(st, uc->context_ebp);
+  st->print("ESI="); print_location(st, uc->context_esi);
+  st->print("EDI="); print_location(st, uc->context_edi);
+#endif // AMD64
+#endif
 
   st->cr();
 }
--- openjdk/hotspot/src/share/vm/memory/allocation.hpp.orig
+++ openjdk/hotspot/src/share/vm/memory/allocation.hpp
@@ -218,9 +218,9 @@
   void signal_out_of_memory(size_t request, const char* whence) const;
 
   void check_for_overflow(size_t request, const char* whence) const {
-    if (UINTPTR_MAX - request < (uintptr_t)_hwm) {
-      signal_out_of_memory(request, whence);
-    }
+//    if (UINTPTR_MAX - request < (uintptr_t)_hwm) {
+//      signal_out_of_memory(request, whence);
+//    }
  }
 
  public:
--- openjdk/hotspot/src/share/vm/oops/generateOopMap.cpp.orig
+++ openjdk/hotspot/src/share/vm/oops/generateOopMap.cpp
@@ -970,11 +970,11 @@
   // The product of bbNo and _state_len can get large if there are lots of
   // basic blocks and stack/locals/monitors.  Need to check to make sure
   // we don't overflow the capacity of a pointer.
-  if ((unsigned)bbNo > UINTPTR_MAX / sizeof(CellTypeState) / _state_len) {
-    report_error("The amount of memory required to analyze this method "
-                 "exceeds addressable range");
-    return;
-  }
+//  if ((unsigned)bbNo > UINTPTR_MAX / sizeof(CellTypeState) / _state_len) {
+//    report_error("The amount of memory required to analyze this method "
+//                 "exceeds addressable range");
+//    return;
+//  }
 
   CellTypeState *basicBlockState =
       NEW_RESOURCE_ARRAY(CellTypeState, bbNo * _state_len);