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8a3fe4f86c
Mark up all error and warning messages. * ada-lang.c, amd64-tdep.c, arch-utils.c, breakpoint.c: Update. * bsd-kvm.c, bsd-uthread.c, coff-solib.h, coffread.c: Update. * core-aout.c, core-regset.c, corefile.c, corelow.c: Update. * cp-abi.c, cp-support.c, cp-valprint.c, cris-tdep.c: Update. * dbxread.c, demangle.c, doublest.c, dsrec.c: Update. * dve3900-rom.c, dwarf2expr.c, dwarf2loc.c: Update. * dwarf2read.c, dwarfread.c, elfread.c, eval.c: Update. * event-top.c, exec.c, expprint.c, f-lang.c: Update. * f-typeprint.c, f-valprint.c, fbsd-nat.c, findvar.c: Update. * frame.c, frv-linux-tdep.c, gcore.c, gdbtypes.c: Update. * gnu-nat.c, gnu-v2-abi.c, gnu-v3-abi.c, go32-nat.c: Update. * hpacc-abi.c, hppa-hpux-nat.c, hppa-hpux-tdep.c: Update. * hppa-linux-nat.c, hppa-linux-tdep.c, hppa-tdep.c: Update. * hpread.c, hpux-thread.c, i386-linux-nat.c: Update. * i386-linux-tdep.c, i386-tdep.c, i386bsd-nat.c: Update. * i386gnu-nat.c, i387-tdep.c, ia64-linux-nat.c: Update. * ia64-tdep.c, inf-child.c, inf-ptrace.c, inf-ttrace.c: Update. * infcall.c, infcmd.c, inflow.c, infptrace.c, infrun.c: Update. * inftarg.c, interps.c, irix5-nat.c, jv-lang.c: Update. * kod-cisco.c, kod.c, language.c, libunwind-frame.c: Update. * linespec.c, linux-nat.c, linux-thread-db.c, m2-lang.c: Update. * m32r-rom.c, m68hc11-tdep.c, m68k-tdep.c: Update. * m68klinux-nat.c, macrocmd.c, macroexp.c, main.c: Update. * maint.c, mdebugread.c, mem-break.c, memattr.c: Update. * mips-linux-tdep.c, mips-tdep.c, mipsread.c, monitor.c: Update. * nlmread.c, nto-procfs.c, objc-lang.c, objfiles.c: Update. * observer.c, ocd.c, p-lang.c, p-typeprint.c: Update. * p-valprint.c, pa64solib.c, parse.c, ppc-linux-tdep.c: Update. * ppcnbsd-tdep.c, printcmd.c, procfs.c, remote-e7000.c: Update. * remote-fileio.c, remote-m32r-sdi.c, remote-rdi.c: Update. * remote-rdp.c, remote-sim.c, remote-st.c: Update. * remote-utils.c, remote-utils.h, remote.c: Update. * rom68k-rom.c, rs6000-nat.c, s390-tdep.c, scm-lang.c: Update. * ser-e7kpc.c, ser-tcp.c, ser-unix.c, sh-tdep.c: Update. * sh3-rom.c, shnbsd-tdep.c, sol-thread.c, solib-aix5.c: Update. * solib-frv.c, solib-irix.c, solib-osf.c, solib-pa64.c: Update. * solib-som.c, solib-sunos.c, solib-svr4.c, solib.c: Update. * somread.c, somsolib.c, source.c, stabsread.c: Update. * stack.c, std-regs.c, symfile-mem.c, symfile.c: Update. * symmisc.c, symtab.c, target.c, thread.c, top.c: Update. * tracepoint.c, trad-frame.c, typeprint.c, utils.c: Update. * uw-thread.c, valarith.c, valops.c, valprint.c: Update. * value.c, varobj.c, version.in, win32-nat.c, wince.c: Update. * xcoffread.c, xcoffsolib.c, cli/cli-cmds.c: Update. * cli/cli-decode.c, cli/cli-dump.c, cli/cli-logging.c: Update. * cli/cli-script.c, cli/cli-setshow.c, mi/mi-cmd-break.c: Update. * mi/mi-cmd-disas.c, mi/mi-cmd-env.c, mi/mi-cmd-file.c: Update. * mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-getopt.c: Update. * mi/mi-symbol-cmds.c, tui/tui-layout.c, tui/tui-stack.c: Update. * tui/tui-win.c: Update.
595 lines
16 KiB
C
595 lines
16 KiB
C
/* Low level interface for debugging HPUX/DCE threads for GDB, the GNU
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debugger.
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Copyright 1996, 1998, 1999, 2000, 2001, 2004 Free Software
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Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 59 Temple Place - Suite 330,
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Boston, MA 02111-1307, USA. */
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/* This module implements a sort of half target that sits between the
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machine-independent parts of GDB and the ptrace interface (infptrace.c) to
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provide access to the HPUX user-mode thread implementation.
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HPUX threads are true user-mode threads, which are invoked via the cma_*
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and pthread_* (DCE and Posix respectivly) interfaces. These are mostly
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implemented in user-space, with all thread context kept in various
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structures that live in the user's heap. For the most part, the kernel has
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no knowlege of these threads.
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*/
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#include "defs.h"
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#define _CMA_NOWRAPPERS_
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#include <cma_tcb_defs.h>
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#include <cma_deb_core.h>
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#include "gdbthread.h"
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#include "target.h"
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#include "inferior.h"
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#include "regcache.h"
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#include <fcntl.h>
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#include <string.h>
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#include "gdb_stat.h"
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#include "gdbcore.h"
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#include "hppa-tdep.h"
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extern int child_suppress_run;
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extern void _initialize_hpux_thread (void);
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struct string_map
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{
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int num;
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char *str;
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};
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static int hpux_thread_active = 0;
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static ptid_t main_ptid; /* Real process ID */
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static CORE_ADDR P_cma__g_known_threads;
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static CORE_ADDR P_cma__g_current_thread;
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static void hpux_thread_resume (ptid_t ptid, int step,
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enum target_signal signo);
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static void init_hpux_thread_ops (void);
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static struct target_ops hpux_thread_ops;
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static ptid_t find_active_thread (void);
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static int cached_thread;
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static cma__t_int_tcb cached_tcb;
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static ptid_t
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find_active_thread (void)
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{
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static cma__t_int_tcb tcb;
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CORE_ADDR tcb_ptr;
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read_memory ((CORE_ADDR) P_cma__g_current_thread,
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(char *) &tcb_ptr,
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sizeof tcb_ptr);
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read_memory (tcb_ptr, (char *) &tcb, sizeof tcb);
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return (ptid_build (PIDGET (main_ptid), 0,
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cma_thread_get_unique (&tcb.prolog.client_thread)));
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}
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static cma__t_int_tcb *find_tcb (ptid_t ptid);
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static cma__t_int_tcb *
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find_tcb (ptid_t ptid)
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{
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cma__t_known_object queue_header;
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cma__t_queue *queue_ptr;
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int thread = ptid_get_tid (ptid);
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if (thread == cached_thread)
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return &cached_tcb;
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read_memory ((CORE_ADDR) P_cma__g_known_threads,
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(char *) &queue_header,
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sizeof queue_header);
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for (queue_ptr = queue_header.queue.flink;
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queue_ptr != (cma__t_queue *) P_cma__g_known_threads;
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queue_ptr = cached_tcb.threads.flink)
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{
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cma__t_int_tcb *tcb_ptr;
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tcb_ptr = cma__base (queue_ptr, threads, cma__t_int_tcb);
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read_memory ((CORE_ADDR) tcb_ptr, (char *) &cached_tcb, sizeof cached_tcb);
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if (cached_tcb.header.type == cma__c_obj_tcb)
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if (cma_thread_get_unique (&cached_tcb.prolog.client_thread) == thread)
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{
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cached_thread = thread;
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return &cached_tcb;
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}
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}
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error (_("Can't find TCB %d"), thread);
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return NULL;
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}
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/* Most target vector functions from here on actually just pass through to
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inftarg.c, as they don't need to do anything specific for threads. */
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static void
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hpux_thread_open (char *arg, int from_tty)
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{
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deprecated_child_ops.to_open (arg, from_tty);
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}
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/* Attach to process PID, then initialize for debugging it
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and wait for the trace-trap that results from attaching. */
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static void
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hpux_thread_attach (char *args, int from_tty)
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{
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deprecated_child_ops.to_attach (args, from_tty);
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/* XXX - might want to iterate over all the threads and register them. */
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}
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/* Take a program previously attached to and detaches it.
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The program resumes execution and will no longer stop
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on signals, etc. We'd better not have left any breakpoints
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in the program or it'll die when it hits one. For this
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to work, it may be necessary for the process to have been
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previously attached. It *might* work if the program was
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started via the normal ptrace (PTRACE_TRACEME). */
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static void
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hpux_thread_detach (char *args, int from_tty)
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{
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deprecated_child_ops.to_detach (args, from_tty);
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}
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/* Resume execution of process PID. If STEP is nozero, then
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just single step it. If SIGNAL is nonzero, restart it with that
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signal activated. We may have to convert pid from a thread-id to an LWP id
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for procfs. */
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static void
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hpux_thread_resume (ptid_t ptid, int step, enum target_signal signo)
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{
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struct cleanup *old_chain;
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old_chain = save_inferior_ptid ();
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ptid = main_ptid;
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inferior_ptid = main_ptid;
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#if 0
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if (pid != -1)
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{
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pid = thread_to_lwp (pid, -2);
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if (pid == -2) /* Inactive thread */
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error (_("This version of Solaris can't start inactive threads."));
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}
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#endif
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deprecated_child_ops.to_resume (ptid, step, signo);
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cached_thread = 0;
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do_cleanups (old_chain);
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}
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/* Wait for any threads to stop. We may have to convert PID from a thread id
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to a LWP id, and vice versa on the way out. */
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static ptid_t
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hpux_thread_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
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{
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ptid_t rtnval;
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struct cleanup *old_chain;
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old_chain = save_inferior_ptid ();
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inferior_ptid = main_ptid;
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if (!ptid_equal (ptid, minus_one_ptid))
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ptid = main_ptid;
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rtnval = deprecated_child_ops.to_wait (ptid, ourstatus);
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rtnval = find_active_thread ();
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do_cleanups (old_chain);
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return rtnval;
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}
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static char regmap[] =
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{
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-2, -1, -1, 0, 4, 8, 12, 16, 20, 24, /* flags, r1 -> r9 */
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28, 32, 36, 40, 44, 48, 52, 56, 60, -1, /* r10 -> r19 */
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1, /* r20 -> r29 */
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/* r30, r31, sar, pcoqh, pcsqh, pcoqt, pcsqt, eiem, iir, isr */
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-2, -1, -1, -2, -1, -1, -1, -1, -1, -1,
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/* ior, ipsw, goto, sr4, sr0, sr1, sr2, sr3, sr5, sr6 */
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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/* sr7, cr0, cr8, cr9, ccr, cr12, cr13, cr24, cr25, cr26 */
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-1, -1, -1, -1, -1, -1, -1, -1, -1, -1,
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-1, -1, -1, -1, /* mpsfu_high, mpsfu_low, mpsfu_ovflo, pad */
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144, -1, -1, -1, -1, -1, -1, -1, /* fpsr, fpe1 -> fpe7 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* fr4 -> fr7 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* fr8 -> fr11 */
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136, -1, 128, -1, 120, -1, 112, -1, /* fr12 -> fr15 */
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104, -1, 96, -1, 88, -1, 80, -1, /* fr16 -> fr19 */
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72, -1, 64, -1, -1, -1, -1, -1, /* fr20 -> fr23 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* fr24 -> fr27 */
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-1, -1, -1, -1, -1, -1, -1, -1, /* fr28 -> fr31 */
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};
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static void
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hpux_thread_fetch_registers (int regno)
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{
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cma__t_int_tcb tcb, *tcb_ptr;
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struct cleanup *old_chain;
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int i;
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int first_regno, last_regno;
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tcb_ptr = find_tcb (inferior_ptid);
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old_chain = save_inferior_ptid ();
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inferior_ptid = main_ptid;
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if (tcb_ptr->state == cma__c_state_running)
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{
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deprecated_child_ops.to_fetch_registers (regno);
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do_cleanups (old_chain);
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return;
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}
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if (regno == -1)
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{
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first_regno = 0;
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last_regno = NUM_REGS - 1;
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}
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else
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{
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first_regno = regno;
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last_regno = regno;
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}
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for (regno = first_regno; regno <= last_regno; regno++)
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{
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if (regmap[regno] == -1)
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deprecated_child_ops.to_fetch_registers (regno);
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else
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{
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unsigned char buf[MAX_REGISTER_SIZE];
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CORE_ADDR sp;
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sp = (CORE_ADDR) tcb_ptr->static_ctx.sp - 160;
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if (regno == HPPA_FLAGS_REGNUM)
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/* Flags must be 0 to avoid bogus value for SS_INSYSCALL */
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memset (buf, '\000', register_size (current_gdbarch, regno));
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else if (regno == HPPA_SP_REGNUM)
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store_unsigned_integer (buf, sizeof sp, sp);
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else if (regno == HPPA_PCOQ_HEAD_REGNUM)
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read_memory (sp - 20, buf, register_size (current_gdbarch, regno));
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else
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read_memory (sp + regmap[regno], buf, register_size (current_gdbarch, regno));
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regcache_raw_supply (current_regcache, regno, buf);
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}
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}
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do_cleanups (old_chain);
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}
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static void
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hpux_thread_store_registers (int regno)
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{
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cma__t_int_tcb tcb, *tcb_ptr;
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struct cleanup *old_chain;
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int i;
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int first_regno, last_regno;
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tcb_ptr = find_tcb (inferior_ptid);
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old_chain = save_inferior_ptid ();
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inferior_ptid = main_ptid;
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if (tcb_ptr->state == cma__c_state_running)
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{
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deprecated_child_ops.to_store_registers (regno);
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do_cleanups (old_chain);
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return;
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}
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if (regno == -1)
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{
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first_regno = 0;
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last_regno = NUM_REGS - 1;
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}
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else
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{
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first_regno = regno;
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last_regno = regno;
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}
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for (regno = first_regno; regno <= last_regno; regno++)
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{
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if (regmap[regno] == -1)
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deprecated_child_ops.to_store_registers (regno);
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else
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{
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unsigned char buf[MAX_REGISTER_SIZE];
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CORE_ADDR sp;
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sp = (CORE_ADDR) tcb_ptr->static_ctx.sp - 160;
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if (regno == HPPA_FLAGS_REGNUM)
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deprecated_child_ops.to_store_registers (regno); /* Let lower layer handle this... */
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else if (regno == HPPA_SP_REGNUM)
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{
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regcache_raw_read (current_regcache, regno, buf);
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write_memory ((CORE_ADDR) &tcb_ptr->static_ctx.sp, buf,
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register_size (current_gdbarch, regno));
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tcb_ptr->static_ctx.sp
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= (cma__t_hppa_regs *) ((CORE_ADDR) buf + 160);
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}
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else if (regno == HPPA_PCOQ_HEAD_REGNUM)
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{
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regcache_raw_read (current_regcache, regno, buf);
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write_memory (sp - 20, buf,
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register_size (current_gdbarch, regno));
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}
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else
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{
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regcache_raw_read (current_regcache, regno, buf);
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write_memory (sp + regmap[regno], buf,
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register_size (current_gdbarch, regno));
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}
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}
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}
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do_cleanups (old_chain);
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}
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/* Get ready to modify the registers array. On machines which store
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individual registers, this doesn't need to do anything. On machines
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which store all the registers in one fell swoop, this makes sure
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that registers contains all the registers from the program being
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debugged. */
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static void
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hpux_thread_prepare_to_store (void)
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{
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deprecated_child_ops.to_prepare_to_store ();
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}
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static int
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hpux_thread_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len,
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int dowrite, struct mem_attrib *attribs,
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struct target_ops *target)
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{
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int retval;
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struct cleanup *old_chain;
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old_chain = save_inferior_ptid ();
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inferior_ptid = main_ptid;
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retval =
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deprecated_child_ops.deprecated_xfer_memory (memaddr, myaddr, len, dowrite, attribs, target);
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do_cleanups (old_chain);
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return retval;
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}
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/* Print status information about what we're accessing. */
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|
||
static void
|
||
hpux_thread_files_info (struct target_ops *ignore)
|
||
{
|
||
deprecated_child_ops.to_files_info (ignore);
|
||
}
|
||
|
||
static void
|
||
hpux_thread_kill_inferior (void)
|
||
{
|
||
deprecated_child_ops.to_kill ();
|
||
}
|
||
|
||
static void
|
||
hpux_thread_notice_signals (ptid_t ptid)
|
||
{
|
||
deprecated_child_ops.to_notice_signals (ptid);
|
||
}
|
||
|
||
/* Fork an inferior process, and start debugging it with /proc. */
|
||
|
||
static void
|
||
hpux_thread_create_inferior (char *exec_file, char *allargs, char **env,
|
||
int from_tty)
|
||
{
|
||
deprecated_child_ops.to_create_inferior (exec_file, allargs, env, from_tty);
|
||
|
||
if (hpux_thread_active)
|
||
{
|
||
main_ptid = inferior_ptid;
|
||
|
||
push_target (&hpux_thread_ops);
|
||
|
||
inferior_ptid = find_active_thread ();
|
||
|
||
add_thread (inferior_ptid);
|
||
}
|
||
}
|
||
|
||
/* This routine is called whenever a new symbol table is read in, or when all
|
||
symbol tables are removed. libthread_db can only be initialized when it
|
||
finds the right variables in libthread.so. Since it's a shared library,
|
||
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 (struct objfile *objfile)
|
||
{
|
||
struct minimal_symbol *ms;
|
||
|
||
if (!objfile)
|
||
{
|
||
hpux_thread_active = 0;
|
||
goto quit;
|
||
}
|
||
|
||
ms = lookup_minimal_symbol ("cma__g_known_threads", NULL, objfile);
|
||
|
||
if (!ms)
|
||
goto quit;
|
||
|
||
P_cma__g_known_threads = SYMBOL_VALUE_ADDRESS (ms);
|
||
|
||
ms = lookup_minimal_symbol ("cma__g_current_thread", NULL, objfile);
|
||
|
||
if (!ms)
|
||
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 (void)
|
||
{
|
||
deprecated_child_ops.to_mourn_inferior ();
|
||
}
|
||
|
||
/* Mark our target-struct as eligible for stray "run" and "attach" commands. */
|
||
|
||
static int
|
||
hpux_thread_can_run (void)
|
||
{
|
||
return child_suppress_run;
|
||
}
|
||
|
||
static int
|
||
hpux_thread_alive (ptid_t ptid)
|
||
{
|
||
return 1;
|
||
}
|
||
|
||
static void
|
||
hpux_thread_stop (void)
|
||
{
|
||
deprecated_child_ops.to_stop ();
|
||
}
|
||
|
||
/* Convert a pid to printable form. */
|
||
|
||
char *
|
||
hpux_pid_to_str (ptid_t ptid)
|
||
{
|
||
static char buf[100];
|
||
int pid = PIDGET (ptid);
|
||
|
||
sprintf (buf, "Thread %ld", ptid_get_tid (ptid));
|
||
|
||
return buf;
|
||
}
|
||
|
||
static void
|
||
init_hpux_thread_ops (void)
|
||
{
|
||
hpux_thread_ops.to_shortname = "hpux-threads";
|
||
hpux_thread_ops.to_longname = "HPUX threads and pthread.";
|
||
hpux_thread_ops.to_doc = "HPUX threads and pthread support.";
|
||
hpux_thread_ops.to_open = hpux_thread_open;
|
||
hpux_thread_ops.to_attach = hpux_thread_attach;
|
||
hpux_thread_ops.to_detach = hpux_thread_detach;
|
||
hpux_thread_ops.to_resume = hpux_thread_resume;
|
||
hpux_thread_ops.to_wait = hpux_thread_wait;
|
||
hpux_thread_ops.to_fetch_registers = hpux_thread_fetch_registers;
|
||
hpux_thread_ops.to_store_registers = hpux_thread_store_registers;
|
||
hpux_thread_ops.to_prepare_to_store = hpux_thread_prepare_to_store;
|
||
hpux_thread_ops.deprecated_xfer_memory = hpux_thread_xfer_memory;
|
||
hpux_thread_ops.to_files_info = hpux_thread_files_info;
|
||
hpux_thread_ops.to_insert_breakpoint = memory_insert_breakpoint;
|
||
hpux_thread_ops.to_remove_breakpoint = memory_remove_breakpoint;
|
||
hpux_thread_ops.to_terminal_init = terminal_init_inferior;
|
||
hpux_thread_ops.to_terminal_inferior = terminal_inferior;
|
||
hpux_thread_ops.to_terminal_ours_for_output = terminal_ours_for_output;
|
||
hpux_thread_ops.to_terminal_save_ours = terminal_save_ours;
|
||
hpux_thread_ops.to_terminal_ours = terminal_ours;
|
||
hpux_thread_ops.to_terminal_info = child_terminal_info;
|
||
hpux_thread_ops.to_kill = hpux_thread_kill_inferior;
|
||
hpux_thread_ops.to_create_inferior = hpux_thread_create_inferior;
|
||
hpux_thread_ops.to_mourn_inferior = hpux_thread_mourn_inferior;
|
||
hpux_thread_ops.to_can_run = hpux_thread_can_run;
|
||
hpux_thread_ops.to_notice_signals = hpux_thread_notice_signals;
|
||
hpux_thread_ops.to_thread_alive = hpux_thread_alive;
|
||
hpux_thread_ops.to_stop = hpux_thread_stop;
|
||
hpux_thread_ops.to_stratum = process_stratum;
|
||
hpux_thread_ops.to_has_all_memory = 1;
|
||
hpux_thread_ops.to_has_memory = 1;
|
||
hpux_thread_ops.to_has_stack = 1;
|
||
hpux_thread_ops.to_has_registers = 1;
|
||
hpux_thread_ops.to_has_execution = 1;
|
||
hpux_thread_ops.to_magic = OPS_MAGIC;
|
||
}
|
||
|
||
void
|
||
_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 = deprecated_target_new_objfile_hook;
|
||
deprecated_target_new_objfile_hook = hpux_thread_new_objfile;
|
||
}
|