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--- hotspot/src/os/bsd/vm/vmError_bsd.cpp.orig
+++ hotspot/src/os/bsd/vm/vmError_bsd.cpp
@@ -33,30 +33,50 @@
#include <sys/syscall.h>
#include <unistd.h>
#include <signal.h>
+#ifdef __FreeBSD__
+#include <limits.h>
+#include <sys/sysctl.h>
+#endif
+
+#define GDB_CMD "gdb"
+
+static void set_debugger(char *buf, int buflen) {
+ int pid = os::current_process_id();
+#ifdef __FreeBSD__
+ char cmd[PATH_MAX+1];
+ int name[4] = { CTL_KERN, KERN_PROC, KERN_PROC_PATHNAME, pid };
+ size_t len = sizeof(cmd);
+ if (sysctl(name, 4, cmd, &len, NULL, 0) == 0 && len > 0) {
+ cmd[len] = '\0';
+ jio_snprintf(buf, buflen, "%s %s %d", GDB_CMD, cmd, pid);
+ } else
+#endif
+ jio_snprintf(buf, buflen, "%s /proc/%d/file %d", GDB_CMD, pid, pid);
+}
void VMError::show_message_box(char *buf, int buflen) {
bool yes;
do {
- error_string(buf, buflen);
- int len = (int)strlen(buf);
+ intx tid = os::current_thread_id();
+ set_debugger(buf, buflen);
+ int len = (int)strlen(buf) + 1;
+ char *msg = &buf[len];
+ error_string(msg, buflen - len);
+ len += (int)strlen(msg);
char *p = &buf[len];
jio_snprintf(p, buflen - len,
"\n\n"
"Do you want to debug the problem?\n\n"
- "To debug, run 'gdb /proc/%d/exe %d'; then switch to thread " INTX_FORMAT " (" INTPTR_FORMAT ")\n"
- "Enter 'yes' to launch gdb automatically (PATH must include gdb)\n"
+ "To debug, run '%s'; then switch to thread " INTX_FORMAT " (" INTPTR_FORMAT ")\n"
+ "Enter 'yes' to launch " GDB_CMD " automatically (PATH must include " GDB_CMD ")\n"
"Otherwise, press RETURN to abort...",
- os::current_process_id(), os::current_process_id(),
- os::current_thread_id(), os::current_thread_id());
+ buf, tid, tid);
- yes = os::message_box("Unexpected Error", buf);
+ yes = os::message_box("Unexpected Error", msg);
if (yes) {
// yes, user asked VM to launch debugger
- jio_snprintf(buf, buflen, "gdb /proc/%d/exe %d",
- os::current_process_id(), os::current_process_id());
-
os::fork_and_exec(buf);
yes = false;
}
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