/* Low level interface for debugging HPUX/DCE threads for GDB, the GNU debugger.
- Copyright 1996, 1999 Free Software Foundation, Inc.
+ Copyright 1996, 1998, 1999, 2000, 2001 Free Software Foundation, Inc.
This file is part of GDB.
#include "gdbthread.h"
#include "target.h"
#include "inferior.h"
+#include "regcache.h"
#include <fcntl.h>
-#include <unistd.h>
#include <sys/stat.h>
#include "gdbcore.h"
extern int child_suppress_run;
extern struct target_ops child_ops; /* target vector for inftarg.c */
-extern void _initialize_hpux_thread PARAMS ((void));
+extern void _initialize_hpux_thread (void);
struct string_map
{
static int hpux_thread_active = 0;
-static int main_pid; /* Real process ID */
+static ptid_t main_ptid; /* Real process ID */
static CORE_ADDR P_cma__g_known_threads;
static CORE_ADDR P_cma__g_current_thread;
-static struct cleanup *save_inferior_pid PARAMS ((void));
+static void hpux_thread_resume (ptid_t ptid, int step,
+ enum target_signal signo);
-static void restore_inferior_pid PARAMS ((int pid));
-
-static void hpux_thread_resume PARAMS ((int pid, int step,
- enum target_signal signo));
-
-static void init_hpux_thread_ops PARAMS ((void));
+static void init_hpux_thread_ops (void);
static struct target_ops hpux_thread_ops;
\f
-/*
-
- LOCAL FUNCTION
-
- save_inferior_pid - Save inferior_pid on the cleanup list
- restore_inferior_pid - Restore inferior_pid from the cleanup list
-
- SYNOPSIS
-
- struct cleanup *save_inferior_pid ()
- void restore_inferior_pid (int pid)
-
- DESCRIPTION
-
- These two functions act in unison to restore inferior_pid in
- case of an error.
-
- NOTES
-
- inferior_pid is a global variable that needs to be changed by many of
- these routines before calling functions in procfs.c. In order to
- guarantee that inferior_pid gets restored (in case of errors), you
- need to call save_inferior_pid before changing it. At the end of the
- function, you should invoke do_cleanups to restore it.
-
- */
-
-
-static struct cleanup *
-save_inferior_pid ()
-{
- return make_cleanup (restore_inferior_pid, inferior_pid);
-}
-
-static void
-restore_inferior_pid (pid)
- int pid;
-{
- inferior_pid = pid;
-}
-\f
-static int find_active_thread PARAMS ((void));
+static ptid_t find_active_thread (void);
static int cached_thread;
-static int cached_active_thread;
static cma__t_int_tcb cached_tcb;
-static int
-find_active_thread ()
+static ptid_t
+find_active_thread (void)
{
static cma__t_int_tcb tcb;
CORE_ADDR tcb_ptr;
- if (cached_active_thread != 0)
- return cached_active_thread;
-
read_memory ((CORE_ADDR) P_cma__g_current_thread,
(char *) &tcb_ptr,
sizeof tcb_ptr);
read_memory (tcb_ptr, (char *) &tcb, sizeof tcb);
- return (cma_thread_get_unique (&tcb.prolog.client_thread) << 16) | main_pid;
+ return (ptid_build (PIDGET (main_ptid), 0,
+ cma_thread_get_unique (&tcb.prolog.client_thread)));
}
-static cma__t_int_tcb *find_tcb PARAMS ((int thread));
+static cma__t_int_tcb *find_tcb (ptid_t ptid);
static cma__t_int_tcb *
-find_tcb (thread)
- int thread;
+find_tcb (ptid_t ptid)
{
cma__t_known_object queue_header;
cma__t_queue *queue_ptr;
+ int thread = ptid_get_tid (ptid);
if (thread == cached_thread)
return &cached_tcb;
read_memory ((CORE_ADDR) tcb_ptr, (char *) &cached_tcb, sizeof cached_tcb);
if (cached_tcb.header.type == cma__c_obj_tcb)
- if (cma_thread_get_unique (&cached_tcb.prolog.client_thread) == thread >> 16)
+ if (cma_thread_get_unique (&cached_tcb.prolog.client_thread) == thread)
{
cached_thread = thread;
return &cached_tcb;
}
}
- error ("Can't find TCB %d,%d", thread >> 16, thread & 0xffff);
+ error ("Can't find TCB %d", thread);
return NULL;
}
\f
/* ARGSUSED */
static void
-hpux_thread_open (arg, from_tty)
- char *arg;
- int from_tty;
+hpux_thread_open (char *arg, int from_tty)
{
child_ops.to_open (arg, from_tty);
}
and wait for the trace-trap that results from attaching. */
static void
-hpux_thread_attach (args, from_tty)
- char *args;
- int from_tty;
+hpux_thread_attach (char *args, int from_tty)
{
child_ops.to_attach (args, from_tty);
started via the normal ptrace (PTRACE_TRACEME). */
static void
-hpux_thread_detach (args, from_tty)
- char *args;
- int from_tty;
+hpux_thread_detach (char *args, int from_tty)
{
child_ops.to_detach (args, from_tty);
}
for procfs. */
static void
-hpux_thread_resume (pid, step, signo)
- int pid;
- int step;
- enum target_signal signo;
+hpux_thread_resume (ptid_t ptid, int step, enum target_signal signo)
{
struct cleanup *old_chain;
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- pid = inferior_pid = main_pid;
+ ptid = main_ptid;
+ inferior_ptid = main_ptid;
#if 0
if (pid != -1)
}
#endif
- child_ops.to_resume (pid, step, signo);
+ child_ops.to_resume (ptid, step, signo);
cached_thread = 0;
- cached_active_thread = 0;
do_cleanups (old_chain);
}
/* Wait for any threads to stop. We may have to convert PID from a thread id
to a LWP id, and vice versa on the way out. */
-static int
-hpux_thread_wait (pid, ourstatus)
- int pid;
- struct target_waitstatus *ourstatus;
+static ptid_t
+hpux_thread_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
{
- int rtnval;
+ ptid_t rtnval;
struct cleanup *old_chain;
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- inferior_pid = main_pid;
+ inferior_ptid = main_ptid;
- if (pid != -1)
- pid = main_pid;
+ if (!ptid_equal (ptid, minus_one_ptid))
+ ptid = main_ptid;
- rtnval = child_ops.to_wait (pid, ourstatus);
+ rtnval = child_ops.to_wait (ptid, ourstatus);
rtnval = find_active_thread ();
};
static void
-hpux_thread_fetch_registers (regno)
- int regno;
+hpux_thread_fetch_registers (int regno)
{
cma__t_int_tcb tcb, *tcb_ptr;
struct cleanup *old_chain;
int i;
int first_regno, last_regno;
- tcb_ptr = find_tcb (inferior_pid);
+ tcb_ptr = find_tcb (inferior_ptid);
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- inferior_pid = main_pid;
+ inferior_ptid = main_ptid;
if (tcb_ptr->state == cma__c_state_running)
{
}
static void
-hpux_thread_store_registers (regno)
- int regno;
+hpux_thread_store_registers (int regno)
{
cma__t_int_tcb tcb, *tcb_ptr;
struct cleanup *old_chain;
int i;
int first_regno, last_regno;
- tcb_ptr = find_tcb (inferior_pid);
+ tcb_ptr = find_tcb (inferior_ptid);
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- inferior_pid = main_pid;
+ inferior_ptid = main_ptid;
if (tcb_ptr->state == cma__c_state_running)
{
debugged. */
static void
-hpux_thread_prepare_to_store ()
+hpux_thread_prepare_to_store (void)
{
child_ops.to_prepare_to_store ();
}
static int
-hpux_thread_xfer_memory (memaddr, myaddr, len, dowrite, target)
- CORE_ADDR memaddr;
- char *myaddr;
- int len;
- int dowrite;
- struct target_ops *target; /* ignored */
+hpux_thread_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len,
+ int dowrite, struct mem_attrib *attribs,
+ struct target_ops *target)
{
int retval;
struct cleanup *old_chain;
- old_chain = save_inferior_pid ();
+ old_chain = save_inferior_ptid ();
- inferior_pid = main_pid;
+ inferior_ptid = main_ptid;
- retval = child_ops.to_xfer_memory (memaddr, myaddr, len, dowrite, target);
+ retval =
+ child_ops.to_xfer_memory (memaddr, myaddr, len, dowrite, attribs, target);
do_cleanups (old_chain);
/* Print status information about what we're accessing. */
static void
-hpux_thread_files_info (ignore)
- struct target_ops *ignore;
+hpux_thread_files_info (struct target_ops *ignore)
{
child_ops.to_files_info (ignore);
}
static void
-hpux_thread_kill_inferior ()
+hpux_thread_kill_inferior (void)
{
child_ops.to_kill ();
}
static void
-hpux_thread_notice_signals (pid)
- int pid;
+hpux_thread_notice_signals (ptid_t ptid)
{
- child_ops.to_notice_signals (pid);
+ child_ops.to_notice_signals (ptid);
}
/* Fork an inferior process, and start debugging it with /proc. */
static void
-hpux_thread_create_inferior (exec_file, allargs, env)
- char *exec_file;
- char *allargs;
- char **env;
+hpux_thread_create_inferior (char *exec_file, char *allargs, char **env)
{
child_ops.to_create_inferior (exec_file, allargs, env);
if (hpux_thread_active)
{
- main_pid = inferior_pid;
+ main_ptid = inferior_ptid;
push_target (&hpux_thread_ops);
- inferior_pid = find_active_thread ();
+ inferior_ptid = find_active_thread ();
- add_thread (inferior_pid);
+ add_thread (inferior_ptid);
}
}
those variables don't show up until the library gets mapped and the symbol
table is read in. */
+/* This new_objfile event is now managed by a chained function pointer.
+ * It is the callee's responsability to call the next client on the chain.
+ */
+
+/* Saved pointer to previous owner of the new_objfile event. */
+static void (*target_new_objfile_chain) (struct objfile *);
+
void
-hpux_thread_new_objfile (objfile)
- struct objfile *objfile;
+hpux_thread_new_objfile (struct objfile *objfile)
{
struct minimal_symbol *ms;
if (!objfile)
{
hpux_thread_active = 0;
-
- return;
+ goto quit;
}
ms = lookup_minimal_symbol ("cma__g_known_threads", NULL, objfile);
if (!ms)
- return;
+ goto quit;
P_cma__g_known_threads = SYMBOL_VALUE_ADDRESS (ms);
ms = lookup_minimal_symbol ("cma__g_current_thread", NULL, objfile);
if (!ms)
- return;
+ goto quit;
P_cma__g_current_thread = SYMBOL_VALUE_ADDRESS (ms);
hpux_thread_active = 1;
+quit:
+ /* Call predecessor on chain, if any. */
+ if (target_new_objfile_chain)
+ target_new_objfile_chain (objfile);
}
/* Clean up after the inferior dies. */
static void
-hpux_thread_mourn_inferior ()
+hpux_thread_mourn_inferior (void)
{
child_ops.to_mourn_inferior ();
}
/* Mark our target-struct as eligible for stray "run" and "attach" commands. */
static int
-hpux_thread_can_run ()
+hpux_thread_can_run (void)
{
return child_suppress_run;
}
static int
-hpux_thread_alive (pid)
- int pid;
+hpux_thread_alive (ptid_t ptid)
{
return 1;
}
static void
-hpux_thread_stop ()
+hpux_thread_stop (void)
{
child_ops.to_stop ();
}
/* Convert a pid to printable form. */
char *
-hpux_pid_to_str (pid)
- int pid;
+hpux_pid_to_str (ptid_t ptid)
{
static char buf[100];
+ int pid = PIDGET (ptid);
- sprintf (buf, "Thread %d", pid >> 16);
+ sprintf (buf, "Thread %ld", ptid_get_tid (ptid));
return buf;
}
\f
static void
-init_hpux_thread_ops ()
+init_hpux_thread_ops (void)
{
hpux_thread_ops.to_shortname = "hpux-threads";
hpux_thread_ops.to_longname = "HPUX threads and pthread.";
}
void
-_initialize_hpux_thread ()
+_initialize_hpux_thread (void)
{
init_hpux_thread_ops ();
add_target (&hpux_thread_ops);
child_suppress_run = 1;
+ /* Hook into new_objfile notification. */
+ target_new_objfile_chain = target_new_objfile_hook;
+ target_new_objfile_hook = hpux_thread_new_objfile;
}
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