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From "Philip M. Gollucci" <pgollu...@p6m7g8.com>
Subject New port: devel/gdb65 GNU GDB 6.5
Date Tue, 11 Jul 2006 07:54:40 GMT

>Submitter-Id:  current-users
>Originator:    Philip M. Gollucci
>Organization:  P6M7G8 Consulting
>Confidential:  no
>Synopsis:      New port: devel/gdb65 GNU GDB 6.5
>Severity:      serious
>Priority:      medium
>Category:      ports
>Class:         change-request
>Release:       FreeBSD 6.1-STABLE i386
>Environment:
System: FreeBSD home.p6m7g8.net 6.1-STABLE FreeBSD 6.1-STABLE #0: Mon Jul 3 23:24:44 PDT 2006
pgollucci@home.p6m7g8.net /usr/src/sys/HOME i386
 >Description:
sudo gdb ./httpd
gdb>r
GDB itself segfaults (all current versions in base and ports)

This allows you for the first time since 2004 to debug httpd startup code on FreeBSD
Personally, I think its mission critical considering the applicationS it affects.

This is currently only for the i386 architecture, and does not includet the KGDB patches.

[I was having issues with set_context() and regcache_* functions]

>Fix:
  Use this new port - version 6.5.  I haven't tried versions 6.2->6.4, but 
  why use outdated software.  Its killing me that we haven't seen a gdb update
  in almost 2 years even in ports.  Base system I understand completely.

--- gdb65.shar begins here ---
# This is a shell archive.  Save it in a file, remove anything before
# this line, and then unpack it by entering "sh file".  Note, it may
# create directories; files and directories will be owned by you and
# have default permissions.
#
# This archive contains:
#
#	gdb65
#	gdb65/Makefile
#	gdb65/distinfo
#	gdb65/pkg-descr
#	gdb65/files
#	gdb65/files/fbsd4.h
#	gdb65/files/freebsd-uthread.c
#	gdb65/files/patch-gdb-Makefile.in
#	gdb65/files/nm-fbsd.h
#	gdb65/files/patch-gdb-version.in
#	gdb65/pkg-plist
#
echo c - gdb65
mkdir -p gdb65 > /dev/null 2>&1
echo x - gdb65/Makefile
sed 's/^X//' >gdb65/Makefile << 'END-of-gdb65/Makefile'
X# ex:ts=8
X# Ports collection makefile for:	GDB 6.5
X# Date created:				10 July 2006
X# Whom:					Philip M. Gollucci <pgollucci@p6m7g8.com>
X#
X# $FreeBSD$
X#
X
XPORTNAME=	gdb
XPORTVERSION=	6.5
XCATEGORIES=	devel
XMASTER_SITES=	${MASTER_SITE_GNU}
XMASTER_SITE_SUBDIR=	gdb
XDISTNAME=	gdb-${PORTVERSION}
X
XMAINTAINER=	pgollucci@p6m7g8.com
XCOMMENT=	GNU GDB 6.5
X
XUSE_BZIP2=	yes
XGNU_CONFIGURE=	yes
XCONFIGURE_ARGS=	--program-suffix=6.5
XCFLAGS+=	-DRL_NO_COMPAT -DKGDB
X
X.include <bsd.port.pre.mk>
X
X.if ${OSVERSION} < 500000
XCFLAGS+=	-include ${FILESDIR}/fbsd4.h
X.endif
X
X.if ${ARCH} == "amd64"
XCONFIGURE_TARGET=	x86_64-portbld-freebsd${OSREL}
X.endif
X
Xpre-configure:
X	cd ${WRKSRC} ; ${RM} -rf dejagnu expect readline sim tcl texinfo
X	${LN} -sf ${FILESDIR}/freebsd-uthread.c ${WRKSRC}/gdb/freebsd-uthread.c
X	${LN} -sf ${FILESDIR}/nm-fbsd.h ${WRKSRC}/gdb/config
X
Xdo-install:
X	${INSTALL_PROGRAM} ${WRKSRC}/gdb/gdb \
X		${PREFIX}/bin/${PORTNAME}${PORTVERSION:S/.//g}
X
X.include <bsd.port.post.mk>
END-of-gdb65/Makefile
echo x - gdb65/distinfo
sed 's/^X//' >gdb65/distinfo << 'END-of-gdb65/distinfo'
XMD5 (gdb-6.5.tar.bz2) = af6c8335230d7604aee0803b1df14f54
XSHA256 (gdb-6.5.tar.bz2) = 0011318d9720781d486c835e88b915f90f2c10e7101d648b64dd4739218d3faf
XSIZE (gdb-6.5.tar.bz2) = 14303558
END-of-gdb65/distinfo
echo x - gdb65/pkg-descr
sed 's/^X//' >gdb65/pkg-descr << 'END-of-gdb65/pkg-descr'
XGNU GDB 6.5
X
XWWW: http://www.gnu.org/software/gdb/bugs/
END-of-gdb65/pkg-descr
echo c - gdb65/files
mkdir -p gdb65/files > /dev/null 2>&1
echo x - gdb65/files/fbsd4.h
sed 's/^X//' >gdb65/files/fbsd4.h << 'END-of-gdb65/files/fbsd4.h'
X// $FreeBSD: ports/devel/gdb6/files/fbsd4.h,v 1.2 2005/03/11 04:52:49 obrien Exp $
X
Xextern void _rl_set_screen_size (int, int);
X
X#define	rl_set_screen_size		_rl_set_screen_size
X#define	rl_filename_completion_function	filename_completion_function
X
Xextern int screenwidth, screenheight;
X
Xstatic inline void
Xrl_get_screen_size (int *rows, int *cols)
X{
X  if (rows) *rows = screenheight;
X  if (cols) *cols = screenwidth;
X}
X
X#if 0
X#define	savestring
X#include <readline/readline.h>
X#undef	savestring
X#endif
END-of-gdb65/files/fbsd4.h
echo x - gdb65/files/freebsd-uthread.c
sed 's/^X//' >gdb65/files/freebsd-uthread.c << 'END-of-gdb65/files/freebsd-uthread.c'
X/* Low level interface for debugging FreeBSD user threads for GDB, the GNU debugger.
X   Copyright 1996, 1999 Free Software Foundation, Inc.
X
XThis file is part of GDB.
X
XThis program is free software; you can redistribute it and/or modify
Xit under the terms of the GNU General Public License as published by
Xthe Free Software Foundation; either version 2 of the License, or
X(at your option) any later version.
X
XThis program is distributed in the hope that it will be useful,
Xbut WITHOUT ANY WARRANTY; without even the implied warranty of
XMERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
XGNU General Public License for more details.
X
XYou should have received a copy of the GNU General Public License
Xalong with this program; if not, write to the Free Software
XFoundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.  */
X
X/* $FreeBSD: ports/devel/gdb6/files/freebsd-uthread.c,v 1.4 2004/10/20 19:37:48 obrien Exp
$ */
X
X/* This module implements a sort of half target that sits between the
X   machine-independent parts of GDB and the ptrace interface (infptrace.c) to
X   provide access to the FreeBSD user-mode thread implementation.
X
X   FreeBSD threads are true user-mode threads, which are invoked via
X   the pthread_* interfaces.  These are mostly implemented in
X   user-space, with all thread context kept in various structures that
X   live in the user's heap.  For the most part, the kernel has no
X   knowlege of these threads.
X
X   Based largely on hpux-thread.c
X
X   */
X
X
X#include "defs.h"
X#include <sys/queue.h>
X#include <signal.h>
X#include <setjmp.h>
X#include <string.h>
X#include "gdbthread.h"
X#include "target.h"
X#include "inferior.h"
X#include <fcntl.h>
X#include <ucontext.h>
X#include <unistd.h>
X#include <sys/stat.h>
X#include "gdbcore.h"
X#include "regcache.h"
X
Xextern int child_suppress_run;
Xextern struct target_ops child_ops; /* target vector for inftarg.c */
X
Xextern void _initialize_freebsd_uthread PARAMS ((void));
X
X/* Set to true while we are part-way through attaching */
Xstatic int freebsd_uthread_attaching;
X
Xstatic int freebsd_uthread_active = 0;
Xstatic CORE_ADDR P_thread_list;
Xstatic CORE_ADDR P_thread_run;
X
X/* Pointer to the next function on the objfile event chain.  */
Xstatic void (*target_new_objfile_chain) (struct objfile *objfile);
X
Xstatic void freebsd_uthread_resume PARAMS ((ptid_t pid, int step,
X					enum target_signal signo));
X
Xstatic void init_freebsd_uthread_ops PARAMS ((void));
X
Xstatic struct target_ops freebsd_uthread_ops;
X
Xstatic ptid_t find_active_ptid PARAMS ((void));
X
Xstruct cached_pthread {
X  u_int64_t		uniqueid;
X  int			state;
X  CORE_ADDR		name;
X  union {
X    ucontext_t	uc;
X    jmp_buf	jb;
X  }			ctx;
X};
X
Xstatic ptid_t cached_ptid;
Xstatic struct cached_pthread cached_pthread;
Xstatic CORE_ADDR cached_pthread_addr;
X
XLIST_HEAD(idmaplist, idmap);
X
Xstruct idmap {
X    LIST_ENTRY(idmap)	link;
X    u_int64_t		uniqueid;
X    int			tid;
X};
X
X#define MAPHASH_SIZE	257
X#define TID_MIN		1
X#define TID_MAX		16383
X
Xstatic int tid_to_hash[TID_MAX + 1];		/* set to map_hash index */
Xstatic struct idmaplist map_hash[MAPHASH_SIZE];
Xstatic int next_free_tid = TID_MIN;		/* first available tid */
Xstatic int last_free_tid = TID_MIN;		/* first unavailable */
X
Xstatic CORE_ADDR P_thread_next_offset;
Xstatic CORE_ADDR P_thread_uniqueid_offset;
Xstatic CORE_ADDR P_thread_state_offset;
Xstatic CORE_ADDR P_thread_name_offset;
Xstatic CORE_ADDR P_thread_ctx_offset;
Xstatic CORE_ADDR P_thread_PS_RUNNING_value;
Xstatic CORE_ADDR P_thread_PS_DEAD_value;
X
Xstatic int next_offset;
Xstatic int uniqueid_offset;
Xstatic int state_offset;
Xstatic int name_offset;
Xstatic int ctx_offset;
Xstatic int PS_RUNNING_value;
Xstatic int PS_DEAD_value;
X
X#define UNIQUEID_HASH(id)	(id % MAPHASH_SIZE)
X#define TID_ADD1(tid)		(((tid) + 1) == TID_MAX + 1 \
X				 ? TID_MIN : (tid) + 1)
X#define IS_TID_FREE(tid)	(tid_to_hash[tid] == -1)
X
Xstatic int
Xget_new_tid(int h)
X{
X  int tid = next_free_tid;
X
X  tid_to_hash[tid] = h;
X  next_free_tid = TID_ADD1(next_free_tid);
X  if (next_free_tid == last_free_tid)
X    {
X      int i;
X
X      for (i = last_free_tid; TID_ADD1(i) != last_free_tid; i = TID_ADD1(i))
X	if (IS_TID_FREE(i))
X	  break;
X      if (TID_ADD1(i) == last_free_tid)
X	{
X	  error("too many threads");
X	  return 0;
X	}
X      next_free_tid = i;
X      for (i = TID_ADD1(i); IS_TID_FREE(i); i = TID_ADD1(i))
X	;
X      last_free_tid = i;
X    }
X
X  return tid;
X}
X
Xstatic ptid_t
Xfind_ptid(u_int64_t uniqueid)
X{
X  int h = UNIQUEID_HASH(uniqueid);
X  struct idmap *im;
X
X  LIST_FOREACH(im, &map_hash[h], link)
X    if (im->uniqueid == uniqueid)
X      return MERGEPID(PIDGET(inferior_ptid), im->tid);
X
X  im = xmalloc(sizeof(struct idmap));
X  im->uniqueid = uniqueid;
X  im->tid = get_new_tid(h);
X  LIST_INSERT_HEAD(&map_hash[h], im, link);
X
X  return MERGEPID(PIDGET(inferior_ptid), im->tid);
X}
X
Xstatic void
Xfree_ptid(ptid_t ptid)
X{
X  int tid = TIDGET(ptid);
X  int h = tid_to_hash[tid];
X  struct idmap *im;
X
X  if (!tid) return;
X
X  LIST_FOREACH(im, &map_hash[h], link)
X    if (im->tid == tid)
X      break;
X
X  if (!im) return;
X
X  LIST_REMOVE(im, link);
X  tid_to_hash[tid] = -1;
X  free(im);
X}
X
X#define READ_OFFSET(field) read_memory(P_thread_##field##_offset,	\
X				       (char *) &field##_offset,	\
X				       sizeof(field##_offset))
X
X#define READ_VALUE(name) read_memory(P_thread_##name##_value,	\
X				     (char *) &name##_value,	\
X				     sizeof(name##_value))
X
Xstatic void
Xread_thread_offsets (void)
X{
X  READ_OFFSET(next);
X  READ_OFFSET(uniqueid);
X  READ_OFFSET(state);
X  READ_OFFSET(name);
X  READ_OFFSET(ctx);
X
X  READ_VALUE(PS_RUNNING);
X  READ_VALUE(PS_DEAD);
X}
X
X#define READ_FIELD(ptr, T, field, result) \
X  read_memory ((ptr) + field##_offset, (char *) &(result), sizeof result)
X
Xstatic u_int64_t
Xread_pthread_uniqueid (CORE_ADDR ptr)
X{
X  u_int64_t uniqueid;
X  READ_FIELD(ptr, u_int64_t, uniqueid, uniqueid);
X  return uniqueid;
X}
X
Xstatic CORE_ADDR
Xread_pthread_next (CORE_ADDR ptr)
X{
X  CORE_ADDR next;
X  READ_FIELD(ptr, CORE_ADDR, next, next);
X  return next;
X}
X
Xstatic void
Xread_cached_pthread (CORE_ADDR ptr, struct cached_pthread *cache)
X{
X  READ_FIELD(ptr, u_int64_t,	uniqueid,	cache->uniqueid);
X  READ_FIELD(ptr, int,		state,		cache->state);
X  READ_FIELD(ptr, CORE_ADDR,	name,		cache->name);
X  READ_FIELD(ptr, ucontext_t,	ctx,		cache->ctx);
X}
X
Xstatic ptid_t
Xfind_active_ptid (void)
X{
X  CORE_ADDR ptr;
X
X  read_memory ((CORE_ADDR)P_thread_run,
X	       (char *)&ptr,
X	       sizeof ptr);
X
X  return find_ptid(read_pthread_uniqueid(ptr));
X}
X
Xstatic CORE_ADDR find_pthread_addr PARAMS ((ptid_t ptid));
Xstatic struct cached_pthread * find_pthread PARAMS ((ptid_t ptid));
X
Xstatic CORE_ADDR
Xfind_pthread_addr (ptid_t ptid)
X{
X  CORE_ADDR ptr;
X
X  if (ptid_equal(ptid, cached_ptid))
X    return cached_pthread_addr;
X
X  read_memory ((CORE_ADDR)P_thread_list,
X	       (char *)&ptr,
X	       sizeof ptr);
X
X  while (ptr != 0)
X    {
X      if (ptid_equal(find_ptid(read_pthread_uniqueid(ptr)), ptid))
X	{
X	  cached_ptid = ptid;
X	  cached_pthread_addr = ptr;
X	  read_cached_pthread(ptr, &cached_pthread);
X	  return ptr;
X	}
X      ptr = read_pthread_next(ptr);
X    }
X
X  return NULL;
X}
X
Xstatic struct cached_pthread *
Xfind_pthread (ptid_t ptid)
X{
X  CORE_ADDR ptr;
X
X  if (ptid_equal(ptid, cached_ptid))
X    return &cached_pthread;
X
X  read_memory ((CORE_ADDR)P_thread_list,
X	       (char *)&ptr,
X	       sizeof ptr);
X
X  while (ptr != 0)
X    {
X      if (ptid_equal(find_ptid(read_pthread_uniqueid(ptr)), ptid))
X	{
X	  cached_ptid = ptid;
X	  cached_pthread_addr = ptr;
X	  read_cached_pthread(ptr, &cached_pthread);
X	  return &cached_pthread;
X	}
X      ptr = read_pthread_next(ptr);
X    }
X
X#if 0
X  error ("Can't find pthread %d,%d", PIDGET(ptid), TIDGET(ptid));
X#endif
X  return NULL;
X}
X
X
X/* Most target vector functions from here on actually just pass through to
X   inftarg.c, as they don't need to do anything specific for threads.  */
X
X/* ARGSUSED */
Xstatic void
Xfreebsd_uthread_open (char *arg, int from_tty)
X{
X  child_ops.to_open (arg, from_tty);
X}
X
X/* Attach to process PID, then initialize for debugging it
X   and wait for the trace-trap that results from attaching.  */
X
Xstatic void
Xfreebsd_uthread_attach (char *args, int from_tty)
X{
X  child_ops.to_attach (args, from_tty);
X  push_target (&freebsd_uthread_ops);
X  freebsd_uthread_attaching = 1;
X}
X
X/* After an attach, see if the target is threaded */
X
Xstatic void
Xfreebsd_uthread_post_attach (int pid)
X{
X  if (freebsd_uthread_active)
X    {
X      read_thread_offsets ();
X      inferior_ptid = find_active_ptid ();
X      add_thread (inferior_ptid);
X    }
X  else
X    {
X      unpush_target (&freebsd_uthread_ops);
X      push_target (&child_ops);
X    }
X
X  freebsd_uthread_attaching = 0;
X}
X
X/* Take a program previously attached to and detaches it.
X   The program resumes execution and will no longer stop
X   on signals, etc.  We'd better not have left any breakpoints
X   in the program or it'll die when it hits one.  For this
X   to work, it may be necessary for the process to have been
X   previously attached.  It *might* work if the program was
X   started via the normal ptrace (PTRACE_TRACEME).  */
X
Xstatic void
Xfreebsd_uthread_detach (char *args, int from_tty)
X{
X  child_ops.to_detach (args, from_tty);
X}
X
X/* Resume execution of process PID.  If STEP is nozero, then
X   just single step it.  If SIGNAL is nonzero, restart it with that
X   signal activated.  We may have to convert pid from a thread-id to an LWP id
X   for procfs.  */
X
Xstatic void
Xfreebsd_uthread_resume (ptid_t ptid, int step, enum target_signal signo)
X{
X  if (freebsd_uthread_attaching)
X    {
X      child_ops.to_resume (ptid, step, signo);
X      return;
X    }
X
X  child_ops.to_resume (ptid, step, signo);
X  cached_ptid = MERGEPID(0, 0);
X}
X
X/* Wait for any threads to stop.  We may have to convert PID from a thread id
X   to a LWP id, and vice versa on the way out.  */
X
Xstatic ptid_t
Xfreebsd_uthread_wait (ptid_t ptid, struct target_waitstatus *ourstatus)
X{
X  ptid_t rtnval;
X
X  if (freebsd_uthread_attaching)
X    {
X      return child_ops.to_wait (ptid, ourstatus);
X    }
X
X  rtnval = child_ops.to_wait (ptid, ourstatus);
X
X  if (PIDGET(rtnval) >= 0)
X    {
X      rtnval = find_active_ptid ();
X      if (!in_thread_list (rtnval))
X	add_thread (rtnval);
X    }
X
X  return rtnval;
X}
X
X/* XXX: this needs to be selected by target, not [build] host */
X#ifdef __i386__
X
X#include "i386-tdep.h"
X
Xstatic char sigmap[I386_SSE_NUM_REGS] = /* map reg to sigcontext  */
X{
X  12,				/* eax */
X  11,				/* ecx */
X  10,				/* edx */
X  9,				/* ebx */
X  8,				/* esp */
X  7,				/* ebp */
X  6,				/* esi */
X  5,				/* edi */
X  15,				/* eip */
X  17,				/* eflags */
X  16,				/* cs */
X  19,				/* ss */
X  4,				/* ds */
X  3,				/* es */
X  2,				/* fs */
X  1,				/* gs */
X  -1, -1, -1, -1, -1, -1, -1,	/* st0-st7 */
X  -1, -1, -1, -1, -1, -1, -1,	/* fctrl-fop */
X  -1, -1, -1, -1, -1, -1, -1,	/* xmm0-xmm7 */
X  -1,				/* mxcsr */
X};
X
Xstatic char jmpmap[I386_SSE_NUM_REGS] = /* map reg to jmp_buf */
X{
X  6,				/* eax */
X  -1,				/* ecx */
X  -1,				/* edx */
X  1,				/* ebx */
X  2,				/* esp */
X  3,				/* ebp */
X  4,				/* esi */
X  5,				/* edi */
X  0,				/* eip */
X  -1,				/* eflags */
X  -1,				/* cs */
X  -1,				/* ss */
X  -1,				/* ds */
X  -1,				/* es */
X  -1,				/* fs */
X  -1,				/* gs */
X  -1, -1, -1, -1, -1, -1, -1,	/* st0-st7 */
X  -1, -1, -1, -1, -1, -1, -1,	/* fctrl-fop */
X  -1, -1, -1, -1, -1, -1, -1,	/* xmm0-xmm7 */
X  -1,				/* mxcsr */
X};
X
X#endif
X
X#ifdef __amd64__
X
X#include "amd64-tdep.h"
X
X// XXX:DEO	not fully ported from i386 yet!!
X
Xstatic char sigmap[AMD64_NUM_REGS_TOTAL] = /* map reg to sigcontext  */
X{
X  12,				/* rax */
X  11,				/* rcx */
X  10,				/* rdx */
X  9,				/* rbx */
X  8,				/* rsp */
X  7,				/* rbp */
X  6,				/* rsi */
X  5,				/* rdi */
X  15,				/* rip */
X  17,				/* rflags */
X  16,				/* cs */
X  19,				/* ss */
X  4,				/* ds */
X  3,				/* es */
X  2,				/* fs */
X  1,				/* gs */
X  -1, -1, -1, -1, -1, -1, -1,	/* st0-st7 */
X  -1, -1, -1, -1, -1, -1, -1,	/* fctrl-fop */
X  -1, -1, -1, -1, -1, -1, -1,	/* xmm0-xmm7 */
X  -1,				/* mxcsr */
X};
X
Xstatic char jmpmap[AMD64_NUM_REGS_TOTAL] = /* map reg to jmp_buf */
X{
X  6,				/* rax */
X  -1,				/* rcx */
X  -1,				/* rdx */
X  1,				/* rbx */
X  2,				/* rsp */
X  3,				/* rbp */
X  4,				/* rsi */
X  5,				/* rdi */
X  0,				/* rip */
X  -1,				/* rflags */
X  -1,				/* cs */
X  -1,				/* ss */
X  -1,				/* ds */
X  -1,				/* es */
X  -1,				/* fs */
X  -1,				/* gs */
X  -1, -1, -1, -1, -1, -1, -1,	/* st0-st7 */
X  -1, -1, -1, -1, -1, -1, -1,	/* fctrl-fop */
X  -1, -1, -1, -1, -1, -1, -1,	/* xmm0-xmm7 */
X  -1,				/* mxcsr */
X};
X
X#endif
X
X#ifdef __alpha__
X
X#include "alpha-tdep.h"
X
Xstatic char sigmap[ALPHA_NUM_REGS] =	/* map reg to sigcontext  */
X{
X  1,  2,  3,  4,  5,  6,  7,  8,  /* v0 - t6 */
X  9,  10, 11, 12, 13, 14, 15, 16, /* t7 - fp */
X  17, 18, 19, 20, 21, 22, 23, 24, /* a0 - t9 */
X  25, 26, 27, 28, 29, 30, 31, 32, /* t10 - zero */
X  38, 39, 40, 41, 42, 43, 44, 45, /* f0 - f7 */
X  46, 47, 48, 49, 50, 51, 52, 53, /* f8 - f15 */
X  54, 55, 56, 57, 58, 59, 60, 61, /* f16 - f23 */
X  62, 63, 64, 65, 66, 67, 68, 69, /* f24 - f31 */
X  33, -1			  /* pc, vfp */
X};
Xstatic char jmpmap[ALPHA_NUM_REGS] = {
X  4,  5,  6,  7,  8,  9,  10, 11, /* v0 - t6 */
X  12, 13, 14, 15, 16, 17, 18, 19, /* t7 - fp */
X  20, 21, 22, 23, 24, 25, 26, 27, /* a0 - t9 */
X  28, 29, 30, 31, 32, 33, 34, 35, /* t10 - zero */
X  37, 38, 39, 40, 41, 42, 43, 44, /* f0 - f7 */
X  45, 46, 47, 48, 49, 50, 51, 52, /* f8 - f15 */
X  53, 54, 55, 56, 57, 58, 59, 60, /* f16 - f23 */
X  61, 62, 63, 64, 65, 66, 67, 68, /* f24 - f31 */
X  2,  -1,			  /* pc, vfp */
X};
X
X#endif
X
X#ifdef __sparc64__
X
Xstatic char sigmap[125] =	/* map reg to sigcontext  */
X{
X  -1
X};
Xstatic char jmpmap[125] = {
X  -1
X};
X
X#endif
X
Xstatic void
Xfreebsd_uthread_fetch_registers (int regno)
X{
X  struct cached_pthread *thread;
X  int active;
X  int first_regno, last_regno;
X  register_t *regbase;
X  char *regmap;
X
X  if (freebsd_uthread_attaching || TIDGET(inferior_ptid) == 0)
X    {
X      child_ops.to_fetch_registers (regno);
X      return;
X    }
X
X  thread = find_pthread (inferior_ptid);
X  active = (ptid_equal(inferior_ptid, find_active_ptid()));
X
X  if (active)
X    {
X      child_ops.to_fetch_registers (regno);
X      return;
X    }
X
X  if (regno == -1)
X    {
X      first_regno = 0;
X      last_regno = NUM_REGS - 1;
X    }
X  else
X    {
X      first_regno = regno;
X      last_regno = regno;
X    }
X
X  regbase = (register_t*) &thread->ctx.jb[0];
X  regmap = jmpmap;
X
X  for (regno = first_regno; regno <= last_regno; regno++)
X    {
X      if (regmap[regno] == -1)
X	child_ops.to_fetch_registers (regno);
X      else
X	if (thread)
X	  regcache_raw_supply (current_regcache, regno, (char*) &regbase[regmap[regno]]);
X	else
X	  regcache_raw_supply (current_regcache, regno, NULL);
X    }
X}
X
Xstatic void
Xfreebsd_uthread_store_registers (int regno)
X{
X  struct cached_pthread *thread;
X  CORE_ADDR ptr;
X  int first_regno, last_regno;
X  u_int32_t *regbase;
X  char *regmap;
X
X  if (freebsd_uthread_attaching)
X    {
X      child_ops.to_store_registers (regno);
X      return;
X    }
X
X  thread = find_pthread (inferior_ptid);
X
X  if (thread->state == PS_RUNNING_value)
X    {
X      child_ops.to_store_registers (regno);
X      return;
X    }
X
X  if (regno == -1)
X    {
X      first_regno = 0;
X      last_regno = NUM_REGS - 1;
X    }
X  else
X    {
X      first_regno = regno;
X      last_regno = regno;
X    }
X
X  regbase = (u_int32_t*) &thread->ctx.jb[0];
X  regmap = jmpmap;
X
X  ptr = find_pthread_addr (inferior_ptid);
X  for (regno = first_regno; regno <= last_regno; regno++)
X    {
X      if (regmap[regno] == -1)
X	child_ops.to_store_registers (regno);
X      else
X	{
X	  u_int32_t *reg = &regbase[regmap[regno]];
X	  int off;
X
X	  /* Hang onto cached value */
X/*DEO:XXX*/
X	  memcpy(reg, deprecated_registers /*regcache_collect ()*/+ DEPRECATED_REGISTER_BYTE (regno),
X		 register_size (current_gdbarch, regno));
X
X	  /* And push out to inferior */
X	  off = (char *) reg - (char *) thread;
X	  write_memory (ptr + off, 
X/*DEO:XXX*/
X			deprecated_registers /*regcache_collect ()*/+ DEPRECATED_REGISTER_BYTE (regno),
X			register_size (current_gdbarch, regno));
X	}
X    }
X}
X
X/* Get ready to modify the registers array.  On machines which store
X   individual registers, this doesn't need to do anything.  On machines
X   which store all the registers in one fell swoop, this makes sure
X   that registers contains all the registers from the program being
X   debugged.  */
X
Xstatic void
Xfreebsd_uthread_prepare_to_store (void)
X{
X  child_ops.to_prepare_to_store ();
X}
X
Xstatic int
Xfreebsd_uthread_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len,
X			     int dowrite, struct mem_attrib *attrib,
X			     struct target_ops *target)
X{
X  return child_ops.to_xfer_memory (memaddr, myaddr, len, dowrite,
X				   attrib, target);
X}
X
X/* Print status information about what we're accessing.  */
X
Xstatic void
Xfreebsd_uthread_files_info (struct target_ops *ignore)
X{
X  child_ops.to_files_info (ignore);
X}
X
Xstatic void
Xfreebsd_uthread_kill_inferior (void)
X{
X  child_ops.to_kill ();
X}
X
Xstatic void
Xfreebsd_uthread_notice_signals (ptid_t ptid)
X{
X  child_ops.to_notice_signals (ptid);
X}
X
X/* Fork an inferior process, and start debugging it with /proc.  */
X
Xstatic void
Xfreebsd_uthread_create_inferior (char *exec_file, char *allargs, char **env,
X				 int from_tty)
X{
X  child_ops.to_create_inferior (exec_file, allargs, env, from_tty);
X
X  if (PIDGET(inferior_ptid) && freebsd_uthread_active)
X    {
X      read_thread_offsets ();
X      push_target (&freebsd_uthread_ops);
X      inferior_ptid = find_active_ptid ();
X      add_thread (inferior_ptid);
X    }
X}
X
X/* This routine is called to find out if the inferior is using threads.
X   We check for the _thread_run and _thread_list globals. */
X
Xvoid
Xfreebsd_uthread_new_objfile (struct objfile *objfile)
X{
X  struct minimal_symbol *ms;
X
X  if (!objfile)
X    {
X      freebsd_uthread_active = 0;
X      return;
X    }
X
X  ms = lookup_minimal_symbol ("_thread_run", NULL, objfile);
X
X  if (!ms)
X    return;
X
X  P_thread_run = SYMBOL_VALUE_ADDRESS (ms);
X
X  ms = lookup_minimal_symbol ("_thread_list", NULL, objfile);
X
X  if (!ms)
X    return;
X
X  P_thread_list = SYMBOL_VALUE_ADDRESS (ms);
X
X#define OFFSET_SYM(field)	"_thread_" #field "_offset"
X#define LOOKUP_OFFSET(field)						\
X  do {									\
X      ms = lookup_minimal_symbol (OFFSET_SYM(field), NULL, objfile);	\
X      if (!ms)								\
X	return;								\
X      P_thread_##field##_offset = SYMBOL_VALUE_ADDRESS (ms);		\
X  } while (0);
X
X#define VALUE_SYM(name)		"_thread_" #name "_value"
X#define LOOKUP_VALUE(name)						\
X  do {									\
X       ms = lookup_minimal_symbol (VALUE_SYM(name), NULL, objfile);	\
X      if (!ms)								\
X	return;								\
X      P_thread_##name##_value = SYMBOL_VALUE_ADDRESS (ms);		\
X  } while (0);
X
X  LOOKUP_OFFSET(next);
X  LOOKUP_OFFSET(uniqueid);
X  LOOKUP_OFFSET(state);
X  LOOKUP_OFFSET(name);
X  LOOKUP_OFFSET(ctx);
X
X  LOOKUP_VALUE(PS_RUNNING);
X  LOOKUP_VALUE(PS_DEAD);
X
X  freebsd_uthread_active = 1;
X}
X
X/* Clean up after the inferior dies.  */
X
Xstatic void
Xfreebsd_uthread_mourn_inferior ()
X{
X  child_ops.to_mourn_inferior ();
X  unpush_target (&freebsd_uthread_ops);
X}
X
X/* Mark our target-struct as eligible for stray "run" and "attach" commands.  */
X
Xstatic int
Xfreebsd_uthread_can_run ()
X{
X  return child_suppress_run;
X}
X
Xstatic int
Xfreebsd_uthread_thread_alive (ptid_t ptid)
X{
X  struct cached_pthread *thread;
X  int ret = 0;
X
X  if (freebsd_uthread_attaching)
X    return 1;
X
X  /*
X   * We can get called from child_ops.to_wait() which passes the underlying
X   * pid (without a thread number).
X   */
X  if (TIDGET(ptid) == 0)
X    return 1;
X
X  if (find_pthread_addr (ptid) != 0)
X    {
X      thread = find_pthread (ptid);
X      ret = (thread->state != PS_DEAD_value);
X    }
X
X  if (!ret)
X    free_ptid(ptid);
X
X  return ret;
X}
X
Xstatic void
Xfreebsd_uthread_stop (void)
X{
X  child_ops.to_stop ();
X}
X
Xstatic void
Xfreebsd_uthread_find_new_threads (void)
X{
X  CORE_ADDR ptr;
X  int state;
X  u_int64_t uniqueid;
X
X  read_memory ((CORE_ADDR)P_thread_list,
X	       (char *)&ptr,
X	       sizeof ptr);
X
X  while (ptr != 0)
X    {
X      READ_FIELD(ptr, int, state, state);
X      READ_FIELD(ptr, u_int64_t, uniqueid, uniqueid);
X      if (state != PS_DEAD_value &&
X	  !in_thread_list (find_ptid(uniqueid)))
X	add_thread (find_ptid(uniqueid));
X      ptr = read_pthread_next(ptr);
X    }
X}
X
X/* MUST MATCH enum pthread_state */
Xstatic const char *statenames[] = {
X  "RUNNING",
X  "SIGTHREAD",
X  "MUTEX_WAIT",
X  "COND_WAIT",
X  "FDLR_WAIT",
X  "FDLW_WAIT",
X  "FDR_WAIT",
X  "FDW_WAIT",
X  "POLL_WAIT",
X  "FILE_WAIT",
X  "SELECT_WAIT",
X  "SLEEP_WAIT",
X  "WAIT_WAIT",
X  "SIGSUSPEND",
X  "SIGWAIT",
X  "SPINBLOCK",
X  "JOIN",
X  "SUSPENDED",
X  "DEAD",
X  "DEADLOCK",
X};
X
X#if 0
X
Xstatic int
Xfreebsd_uthread_get_thread_info (ref, selection, info)
X     gdb_threadref *ref;
X     int selection;
X     struct gdb_ext_thread_info *info;
X{
X  int pid = *ref;
X  struct cached_pthread *thread = find_pthread (pid);
X  struct cleanup *old_chain;
X
X  old_chain = save_inferior_pid ();
X  inferior_pid = main_pid;
X
X  memset(&info->threadid, 0, OPAQUETHREADBYTES);
X
X  memcpy(&info->threadid, ref, sizeof *ref);
X  info->active = thread->state == PS_RUNNING_value;
X  strcpy(info->display, statenames[thread->state]);
X  if (thread->name)
X    read_memory ((CORE_ADDR) thread->name, info->shortname, 32);
X  else
X    strcpy(info->shortname, "");
X
X  do_cleanups (old_chain);
X  return (0);
X}
X
X#endif
X
Xchar *
Xfreebsd_uthread_pid_to_str (ptid_t ptid)
X{
X  static char buf[30];
X
X  if (DEPRECATED_STREQ (current_target.to_shortname, "freebsd-uthreads"))
X    sprintf (buf, "Process %d, Thread %ld",
X	     PIDGET(ptid), TIDGET(ptid));
X  else
X    sprintf (buf, "Process %d", PIDGET(ptid));
X
X  return buf;
X}
X
X
Xstatic void
Xinit_freebsd_uthread_ops ()
X{
X  freebsd_uthread_ops.to_shortname = "freebsd-uthreads";
X  freebsd_uthread_ops.to_longname = "FreeBSD uthreads";
X  freebsd_uthread_ops.to_doc = "FreeBSD user threads support.";
X  freebsd_uthread_ops.to_open = freebsd_uthread_open;
X  freebsd_uthread_ops.to_attach = freebsd_uthread_attach;
X  freebsd_uthread_ops.to_post_attach = freebsd_uthread_post_attach;
X  freebsd_uthread_ops.to_detach = freebsd_uthread_detach;
X  freebsd_uthread_ops.to_resume = freebsd_uthread_resume;
X  freebsd_uthread_ops.to_wait = freebsd_uthread_wait;
X  freebsd_uthread_ops.to_fetch_registers = freebsd_uthread_fetch_registers;
X  freebsd_uthread_ops.to_store_registers = freebsd_uthread_store_registers;
X  freebsd_uthread_ops.to_prepare_to_store = freebsd_uthread_prepare_to_store;
X  freebsd_uthread_ops.to_xfer_memory = freebsd_uthread_xfer_memory;
X  freebsd_uthread_ops.to_files_info = freebsd_uthread_files_info;
X  freebsd_uthread_ops.to_insert_breakpoint = memory_insert_breakpoint;
X  freebsd_uthread_ops.to_remove_breakpoint = memory_remove_breakpoint;
X  freebsd_uthread_ops.to_terminal_init = terminal_init_inferior;
X  freebsd_uthread_ops.to_terminal_inferior = terminal_inferior;
X  freebsd_uthread_ops.to_terminal_ours_for_output = terminal_ours_for_output;
X  freebsd_uthread_ops.to_terminal_ours = terminal_ours;
X  freebsd_uthread_ops.to_terminal_info = child_terminal_info;
X  freebsd_uthread_ops.to_kill = freebsd_uthread_kill_inferior;
X  freebsd_uthread_ops.to_create_inferior = freebsd_uthread_create_inferior;
X  freebsd_uthread_ops.to_mourn_inferior = freebsd_uthread_mourn_inferior;
X  freebsd_uthread_ops.to_can_run = freebsd_uthread_can_run;
X  freebsd_uthread_ops.to_notice_signals = freebsd_uthread_notice_signals;
X  freebsd_uthread_ops.to_thread_alive = freebsd_uthread_thread_alive;
X  freebsd_uthread_ops.to_stop = freebsd_uthread_stop;
X  freebsd_uthread_ops.to_stratum = process_stratum;
X  freebsd_uthread_ops.to_has_all_memory = 1;
X  freebsd_uthread_ops.to_has_memory = 1;
X  freebsd_uthread_ops.to_has_stack = 1;
X  freebsd_uthread_ops.to_has_registers = 1;
X  freebsd_uthread_ops.to_has_execution = 1;
X  freebsd_uthread_ops.to_has_thread_control = 0;
X  freebsd_uthread_ops.to_magic = OPS_MAGIC;
X  freebsd_uthread_ops.to_find_new_threads = freebsd_uthread_find_new_threads;
X  freebsd_uthread_ops.to_pid_to_str = freebsd_uthread_pid_to_str;
X#if 0
X  freebsd_uthread_vec.get_thread_info = freebsd_uthread_get_thread_info;
X#endif
X}
X
Xvoid
X_initialize_freebsd_uthread ()
X{
X  init_freebsd_uthread_ops ();
X  add_target (&freebsd_uthread_ops);
X
X  target_new_objfile_chain = deprecated_target_new_objfile_hook;
X  deprecated_target_new_objfile_hook = freebsd_uthread_new_objfile;
X
X  child_suppress_run = 1;
X}
END-of-gdb65/files/freebsd-uthread.c
echo x - gdb65/files/patch-gdb-Makefile.in
sed 's/^X//' >gdb65/files/patch-gdb-Makefile.in << 'END-of-gdb65/files/patch-gdb-Makefile.in'
X--- gdb/Makefile.in.orig	Mon Jul 10 23:49:02 2006
X+++ gdb/Makefile.in	Mon Jul 10 23:50:38 2006
X@@ -122,10 +122,10 @@
X BFD_CFLAGS = -I$(BFD_DIR) -I$(BFD_SRC)
X 
X # Where is the READLINE library?  Typically in ../readline.
X-READLINE_DIR = ../readline
X-READLINE = $(READLINE_DIR)/libreadline.a
X-READLINE_SRC = $(srcdir)/$(READLINE_DIR)
X-READLINE_CFLAGS = -I$(READLINE_SRC)/..
X+#READLINE_DIR = ../readline
X+#READLINE = $(READLINE_DIR)/libreadline.a
X+#READLINE_SRC = $(srcdir)/$(READLINE_DIR)
X+#READLINE_CFLAGS = -I$(READLINE_SRC)/..
X 
X WARN_CFLAGS = @WARN_CFLAGS@
X WERROR_CFLAGS = @WERROR_CFLAGS@
X@@ -590,9 +590,9 @@
X demangle_h =    $(INCLUDE_DIR)/demangle.h
X obstack_h =     $(INCLUDE_DIR)/obstack.h
X opcode_m68hc11_h = $(INCLUDE_DIR)/opcode/m68hc11.h
X-readline_h = 	$(READLINE_SRC)/readline.h
X-readline_tilde_h =	$(READLINE_SRC)/tilde.h
X-readline_history_h =	$(READLINE_SRC)/history.h
X+#readline_h = 	$(READLINE_SRC)/readline.h
X+#readline_tilde_h =	$(READLINE_SRC)/tilde.h
X+#readline_history_h =	$(READLINE_SRC)/history.h
X frv_desc_h =	$(OPCODES_SRC)/frv-desc.h
X sh_opc_h = 	$(OPCODES_SRC)/sh-opc.h
X gdb_callback_h = $(INCLUDE_DIR)/gdb/callback.h
X@@ -3171,3 +3171,4 @@
X 	$(CC) -c $(INTERNAL_CFLAGS) $(srcdir)/tui/tui-winsource.c
X 
X ### end of the gdb Makefile.in.
X+READLINE = -lreadline
END-of-gdb65/files/patch-gdb-Makefile.in
echo x - gdb65/files/nm-fbsd.h
sed 's/^X//' >gdb65/files/nm-fbsd.h << 'END-of-gdb65/files/nm-fbsd.h'
X#ifndef CONFIG_NM_FBSD_H
X#define CONFIG_NM_FBSD_H
X
X/* $FreeBSD: ports/devel/gdb6/files/nm-fbsd.h,v 1.1 2004/05/13 04:28:38 obrien Exp $ */
X
X#ifdef HAVE_SYS_PARAM_H
X#include <sys/param.h>
X#endif
X
Xextern int kernel_debugging;
Xextern int kernel_writablecore;
X
XCORE_ADDR fbsd_kern_frame_saved_pc(struct frame_info *frame);
X
X#if __FreeBSD_version >= 500032
X#define KGDB 1
X#define ADDITIONAL_OPTIONS \
X       {"kernel", no_argument, &kernel_debugging, 1}, \
X       {"k", no_argument, &kernel_debugging, 1}, \
X       {"wcore", no_argument, &kernel_writablecore, 1}, \
X       {"w", no_argument, &kernel_writablecore, 1},
X
X#define ADDITIONAL_OPTION_HELP \
X       "\
X  --kernel           Enable kernel debugging.\n\
X  --wcore            Make core file writable (only works for /dev/mem).\n\
X                     This option only works while debugging a kernel !!\n\
X"
X
X#define DEFAULT_PROMPT kernel_debugging?"(kgdb) ":"(gdb) "
X
X/* misuse START_PROGRESS to test whether we're running as kgdb */   
X/* START_PROGRESS is called at the top of main */
X#undef START_PROGRESS
X#define START_PROGRESS(STR,N) \
X  if (!strcmp (STR, "kgdb")) \
X     kernel_debugging = 1;
X#endif
X#endif /* CONFIG_NM_FBSD_H */
END-of-gdb65/files/nm-fbsd.h
echo x - gdb65/files/patch-gdb-version.in
sed 's/^X//' >gdb65/files/patch-gdb-version.in << 'END-of-gdb65/files/patch-gdb-version.in'
X--- gdb/version.in.orig	Tue Jun 20 22:05:40 2006
X+++ gdb/version.in	Mon Jul 10 23:17:58 2006
X@@ -1 +1 @@
X-6.5
X+6.5 [GDB v6.x for FreeBSD]
END-of-gdb65/files/patch-gdb-version.in
echo x - gdb65/pkg-plist
sed 's/^X//' >gdb65/pkg-plist << 'END-of-gdb65/pkg-plist'
X@comment $FreeBSD$
Xbin/gdb65
END-of-gdb65/pkg-plist
exit
--- gdb65.shar ends here ---



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