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authornobody <>2002-05-28 18:43:09 +0000
committernobody <>2002-05-28 18:43:09 +0000
commit0d49dda2de4c1fd23c87348f08a022bfd3ee3334 (patch)
tree592db3a187b7a55a25aa6d5e4df1f3326d298165 /gdb/gnu-nat.c
parent0540f4547886519cdcf972d171961c0b6a33e02e (diff)
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This commit was manufactured by cvs2svn to create branch
'kseitz_interps-20020528-branch'. Sprout from cagney_regbuf-20020515-branch 2002-05-15 21:19:22 UTC nobody 'This commit was manufactured by cvs2svn to create branch' Cherrypick from master 2002-05-28 18:43:08 UTC Jason Thorpe <thorpej@netbsd.org> '* ppcnbsd-nat.c: Rewrite.': gdb/ChangeLog gdb/Makefile.in gdb/mi/mi-main.c Delete: .cvsignore COPYING COPYING.LIB COPYING.NEWLIB ChangeLog MAINTAINERS Makefile.in README README-maintainer-mode bfd/COPYING bfd/ChangeLog bfd/ChangeLog-0001 bfd/ChangeLog-9193 bfd/ChangeLog-9495 bfd/ChangeLog-9697 bfd/ChangeLog-9899 bfd/MAINTAINERS bfd/Makefile.am bfd/Makefile.in bfd/PORTING bfd/README bfd/TODO bfd/acinclude.m4 bfd/aclocal.m4 bfd/aix386-core.c bfd/aix5ppc-core.c bfd/aout-adobe.c bfd/aout-arm.c bfd/aout-cris.c bfd/aout-encap.c bfd/aout-ns32k.c bfd/aout-sparcle.c bfd/aout-target.h bfd/aout-tic30.c bfd/aout0.c bfd/aout32.c bfd/aout64.c bfd/aoutf1.h bfd/aoutx.h bfd/archive.c bfd/archive64.c bfd/archures.c bfd/armnetbsd.c bfd/bfd-in.h bfd/bfd-in2.h bfd/bfd.c bfd/binary.c bfd/bout.c bfd/cache.c bfd/cf-i386lynx.c bfd/cf-m68klynx.c bfd/cf-sparclynx.c bfd/cisco-core.c bfd/coff-a29k.c bfd/coff-alpha.c bfd/coff-apollo.c bfd/coff-arm.c bfd/coff-aux.c bfd/coff-go32.c bfd/coff-h8300.c bfd/coff-h8500.c bfd/coff-i386.c bfd/coff-i860.c bfd/coff-i960.c bfd/coff-ia64.c bfd/coff-m68k.c bfd/coff-m88k.c bfd/coff-mcore.c bfd/coff-mips.c bfd/coff-or32.c bfd/coff-pmac.c bfd/coff-ppc.c bfd/coff-rs6000.c bfd/coff-sh.c bfd/coff-sparc.c bfd/coff-stgo32.c bfd/coff-svm68k.c bfd/coff-tic30.c bfd/coff-tic54x.c bfd/coff-tic80.c bfd/coff-u68k.c bfd/coff-w65.c bfd/coff-we32k.c bfd/coff-z8k.c bfd/coff64-rs6000.c bfd/coffcode.h bfd/coffgen.c bfd/cofflink.c bfd/coffswap.h bfd/config.bfd bfd/config.in bfd/configure bfd/configure.com bfd/configure.host bfd/configure.in bfd/corefile.c bfd/cpu-a29k.c bfd/cpu-alpha.c bfd/cpu-arc.c bfd/cpu-arm.c bfd/cpu-avr.c bfd/cpu-cris.c bfd/cpu-d10v.c bfd/cpu-d30v.c bfd/cpu-fr30.c bfd/cpu-h8300.c bfd/cpu-h8500.c bfd/cpu-hppa.c bfd/cpu-i370.c bfd/cpu-i386.c 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gdb/config/m68k/nm-apollo68v.h gdb/config/m68k/nm-delta68.h gdb/config/m68k/nm-dpx2.h gdb/config/m68k/nm-hp300bsd.h gdb/config/m68k/nm-hp300hpux.h gdb/config/m68k/nm-linux.h gdb/config/m68k/nm-m68klynx.h gdb/config/m68k/nm-nbsd.h gdb/config/m68k/nm-sun2.h gdb/config/m68k/nm-sun3.h gdb/config/m68k/nm-sysv4.h gdb/config/m68k/os68k.mt gdb/config/m68k/st2000.mt gdb/config/m68k/sun2os3.mh gdb/config/m68k/sun2os3.mt gdb/config/m68k/sun2os4.mh gdb/config/m68k/sun2os4.mt gdb/config/m68k/sun3os3.mh gdb/config/m68k/sun3os3.mt gdb/config/m68k/sun3os4.mh gdb/config/m68k/sun3os4.mt gdb/config/m68k/tm-3b1.h gdb/config/m68k/tm-apollo68b.h gdb/config/m68k/tm-cisco.h gdb/config/m68k/tm-delta68.h gdb/config/m68k/tm-dpx2.h gdb/config/m68k/tm-es1800.h gdb/config/m68k/tm-hp300bsd.h gdb/config/m68k/tm-hp300hpux.h gdb/config/m68k/tm-linux.h gdb/config/m68k/tm-m68k.h gdb/config/m68k/tm-m68klynx.h gdb/config/m68k/tm-m68kv4.h gdb/config/m68k/tm-mac.h gdb/config/m68k/tm-monitor.h gdb/config/m68k/tm-nbsd.h 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gdb/config/mcore/mcore.mt gdb/config/mcore/tm-mcore.h gdb/config/mips/bigmips.mt gdb/config/mips/bigmips64.mt gdb/config/mips/decstation.mh gdb/config/mips/decstation.mt gdb/config/mips/embed.mt gdb/config/mips/embed64.mt gdb/config/mips/embedl.mt gdb/config/mips/embedl64.mt gdb/config/mips/irix3.mh gdb/config/mips/irix3.mt gdb/config/mips/irix4.mh gdb/config/mips/irix5.mh gdb/config/mips/irix5.mt gdb/config/mips/irix6.mh gdb/config/mips/irix6.mt gdb/config/mips/linux.mh gdb/config/mips/linux.mt gdb/config/mips/littlemips.mh gdb/config/mips/littlemips.mt gdb/config/mips/mipsm3.mh gdb/config/mips/mipsm3.mt gdb/config/mips/mipsv4.mh gdb/config/mips/mipsv4.mt gdb/config/mips/news-mips.mh gdb/config/mips/nm-irix3.h gdb/config/mips/nm-irix4.h gdb/config/mips/nm-irix5.h gdb/config/mips/nm-irix6.h gdb/config/mips/nm-linux.h gdb/config/mips/nm-mips.h gdb/config/mips/nm-news-mips.h gdb/config/mips/nm-riscos.h gdb/config/mips/riscos.mh gdb/config/mips/tm-bigmips.h gdb/config/mips/tm-bigmips64.h gdb/config/mips/tm-embed.h gdb/config/mips/tm-embed64.h gdb/config/mips/tm-embedl.h gdb/config/mips/tm-embedl64.h gdb/config/mips/tm-irix3.h gdb/config/mips/tm-irix5.h gdb/config/mips/tm-irix6.h gdb/config/mips/tm-linux.h gdb/config/mips/tm-mips.h gdb/config/mips/tm-mips64.h gdb/config/mips/tm-mipsm3.h gdb/config/mips/tm-mipsv4.h gdb/config/mips/tm-tx39.h gdb/config/mips/tm-tx39l.h gdb/config/mips/tm-vr4100.h gdb/config/mips/tm-vr4300.h gdb/config/mips/tm-vr4300el.h gdb/config/mips/tm-vr4xxx.h gdb/config/mips/tm-vr4xxxel.h gdb/config/mips/tm-vr5000.h gdb/config/mips/tm-vr5000el.h gdb/config/mips/tm-vxmips.h gdb/config/mips/tm-wince.h gdb/config/mips/tx39.mt gdb/config/mips/tx39l.mt gdb/config/mips/vr4100.mt gdb/config/mips/vr4300.mt gdb/config/mips/vr4300el.mt gdb/config/mips/vr4xxx.mt gdb/config/mips/vr4xxxel.mt gdb/config/mips/vr5000.mt gdb/config/mips/vr5000el.mt gdb/config/mips/vxmips.mt gdb/config/mips/wince.mt gdb/config/mips/xm-irix3.h gdb/config/mips/xm-irix4.h gdb/config/mips/xm-irix5.h gdb/config/mips/xm-irix6.h gdb/config/mips/xm-linux.h gdb/config/mips/xm-mips.h gdb/config/mips/xm-mipsm3.h gdb/config/mips/xm-mipsv4.h gdb/config/mips/xm-riscos.h gdb/config/mn10200/mn10200.mt gdb/config/mn10200/tm-mn10200.h gdb/config/mn10300/mn10300.mt gdb/config/nm-gnu.h gdb/config/nm-linux.h gdb/config/nm-lynx.h gdb/config/nm-m3.h gdb/config/nm-nbsd.h gdb/config/nm-sysv4.h gdb/config/none/nm-none.h gdb/config/none/none.mh gdb/config/none/none.mt gdb/config/none/tm-none.h gdb/config/none/xm-none.h gdb/config/ns32k/nbsd.mh gdb/config/ns32k/nbsd.mt gdb/config/ns32k/nm-nbsd.h gdb/config/ns32k/tm-nbsd.h gdb/config/ns32k/tm-umax.h gdb/config/ns32k/xm-nbsd.h gdb/config/pa/hppa64.mt gdb/config/pa/hppabsd.mh gdb/config/pa/hppabsd.mt gdb/config/pa/hppahpux.mh gdb/config/pa/hppahpux.mt gdb/config/pa/hppaosf.mh gdb/config/pa/hppaosf.mt gdb/config/pa/hppapro.mt gdb/config/pa/hpux1020.mh gdb/config/pa/hpux1020.mt gdb/config/pa/hpux11.mh gdb/config/pa/hpux11.mt gdb/config/pa/hpux11w.mh gdb/config/pa/hpux11w.mt gdb/config/pa/nm-hppab.h gdb/config/pa/nm-hppah.h gdb/config/pa/nm-hppah11.h gdb/config/pa/nm-hppao.h gdb/config/pa/tm-hppa.h gdb/config/pa/tm-hppa64.h gdb/config/pa/tm-hppab.h gdb/config/pa/tm-hppah.h gdb/config/pa/tm-hppao.h gdb/config/pa/tm-pro.h gdb/config/pa/xm-hppab.h gdb/config/pa/xm-hppah.h gdb/config/pa/xm-pa.h gdb/config/powerpc/aix.mh gdb/config/powerpc/aix.mt gdb/config/powerpc/gdbserve.mt gdb/config/powerpc/linux.mh gdb/config/powerpc/linux.mt gdb/config/powerpc/nbsd.mh gdb/config/powerpc/nbsd.mt gdb/config/powerpc/nm-aix.h gdb/config/powerpc/nm-linux.h gdb/config/powerpc/nm-nbsd.h gdb/config/powerpc/ppc-eabi.mt gdb/config/powerpc/ppc-sim.mt gdb/config/powerpc/ppcle-eabi.mt gdb/config/powerpc/ppcle-sim.mt gdb/config/powerpc/tm-linux.h gdb/config/powerpc/tm-nbsd.h gdb/config/powerpc/tm-ppc-aix.h gdb/config/powerpc/tm-ppc-eabi.h gdb/config/powerpc/tm-ppc-sim.h gdb/config/powerpc/tm-ppcle-eabi.h 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gdb/config/sh/wince.mt gdb/config/sparc/fbsd.mh gdb/config/sparc/fbsd.mt gdb/config/sparc/linux.mh gdb/config/sparc/linux.mt gdb/config/sparc/nbsd.mh gdb/config/sparc/nbsd.mt gdb/config/sparc/nbsdelf.mh gdb/config/sparc/nm-fbsd.h gdb/config/sparc/nm-linux.h gdb/config/sparc/nm-nbsd.h gdb/config/sparc/nm-nbsdelf.h gdb/config/sparc/nm-sparclynx.h gdb/config/sparc/nm-sun4os4.h gdb/config/sparc/nm-sun4sol2.h gdb/config/sparc/sp64.mt gdb/config/sparc/sp64linux.mt gdb/config/sparc/sp64sim.mt gdb/config/sparc/sp64sol2.mt gdb/config/sparc/sparc-em.mt gdb/config/sparc/sparclet.mt gdb/config/sparc/sparclite.mt gdb/config/sparc/sparclynx.mh gdb/config/sparc/sparclynx.mt gdb/config/sparc/sun4os4.mh gdb/config/sparc/sun4os4.mt gdb/config/sparc/sun4sol2.mh gdb/config/sparc/sun4sol2.mt gdb/config/sparc/tm-fbsd.h gdb/config/sparc/tm-linux.h gdb/config/sparc/tm-nbsd.h gdb/config/sparc/tm-sp64.h gdb/config/sparc/tm-sp64linux.h gdb/config/sparc/tm-sp64sim.h gdb/config/sparc/tm-sparc.h 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sim/testsuite/sim/fr30/stres.cgs sim/testsuite/sim/fr30/sub.cgs sim/testsuite/sim/fr30/subc.cgs sim/testsuite/sim/fr30/subn.cgs sim/testsuite/sim/fr30/testutils.inc sim/testsuite/sim/fr30/xchb.cgs sim/testsuite/sim/m32r/add.cgs sim/testsuite/sim/m32r/add3.cgs sim/testsuite/sim/m32r/addi.cgs sim/testsuite/sim/m32r/addv.cgs sim/testsuite/sim/m32r/addv3.cgs sim/testsuite/sim/m32r/addx.cgs sim/testsuite/sim/m32r/allinsn.exp sim/testsuite/sim/m32r/and.cgs sim/testsuite/sim/m32r/and3.cgs sim/testsuite/sim/m32r/bc24.cgs sim/testsuite/sim/m32r/bc8.cgs sim/testsuite/sim/m32r/beq.cgs sim/testsuite/sim/m32r/beqz.cgs sim/testsuite/sim/m32r/bgez.cgs sim/testsuite/sim/m32r/bgtz.cgs sim/testsuite/sim/m32r/bl24.cgs sim/testsuite/sim/m32r/bl8.cgs sim/testsuite/sim/m32r/blez.cgs sim/testsuite/sim/m32r/bltz.cgs sim/testsuite/sim/m32r/bnc24.cgs sim/testsuite/sim/m32r/bnc8.cgs sim/testsuite/sim/m32r/bne.cgs sim/testsuite/sim/m32r/bnez.cgs sim/testsuite/sim/m32r/bra24.cgs sim/testsuite/sim/m32r/bra8.cgs sim/testsuite/sim/m32r/cmp.cgs sim/testsuite/sim/m32r/cmpi.cgs sim/testsuite/sim/m32r/cmpu.cgs sim/testsuite/sim/m32r/cmpui.cgs sim/testsuite/sim/m32r/div.cgs sim/testsuite/sim/m32r/divu.cgs sim/testsuite/sim/m32r/hello.ms sim/testsuite/sim/m32r/hw-trap.ms sim/testsuite/sim/m32r/jl.cgs sim/testsuite/sim/m32r/jmp.cgs sim/testsuite/sim/m32r/ld-d.cgs sim/testsuite/sim/m32r/ld-plus.cgs sim/testsuite/sim/m32r/ld.cgs sim/testsuite/sim/m32r/ld24.cgs sim/testsuite/sim/m32r/ldb-d.cgs sim/testsuite/sim/m32r/ldb.cgs sim/testsuite/sim/m32r/ldh-d.cgs sim/testsuite/sim/m32r/ldh.cgs sim/testsuite/sim/m32r/ldi16.cgs sim/testsuite/sim/m32r/ldi8.cgs sim/testsuite/sim/m32r/ldub-d.cgs sim/testsuite/sim/m32r/ldub.cgs sim/testsuite/sim/m32r/lduh-d.cgs sim/testsuite/sim/m32r/lduh.cgs sim/testsuite/sim/m32r/lock.cgs sim/testsuite/sim/m32r/machi.cgs sim/testsuite/sim/m32r/maclo.cgs sim/testsuite/sim/m32r/macwhi.cgs sim/testsuite/sim/m32r/macwlo.cgs sim/testsuite/sim/m32r/misc.exp sim/testsuite/sim/m32r/mul.cgs sim/testsuite/sim/m32r/mulhi.cgs sim/testsuite/sim/m32r/mullo.cgs sim/testsuite/sim/m32r/mulwhi.cgs sim/testsuite/sim/m32r/mulwlo.cgs sim/testsuite/sim/m32r/mv.cgs sim/testsuite/sim/m32r/mvfachi.cgs sim/testsuite/sim/m32r/mvfaclo.cgs sim/testsuite/sim/m32r/mvfacmi.cgs sim/testsuite/sim/m32r/mvfc.cgs sim/testsuite/sim/m32r/mvtachi.cgs sim/testsuite/sim/m32r/mvtaclo.cgs sim/testsuite/sim/m32r/mvtc.cgs sim/testsuite/sim/m32r/neg.cgs sim/testsuite/sim/m32r/nop.cgs sim/testsuite/sim/m32r/not.cgs sim/testsuite/sim/m32r/or.cgs sim/testsuite/sim/m32r/or3.cgs sim/testsuite/sim/m32r/rac.cgs sim/testsuite/sim/m32r/rach.cgs sim/testsuite/sim/m32r/rem.cgs sim/testsuite/sim/m32r/remu.cgs sim/testsuite/sim/m32r/rte.cgs sim/testsuite/sim/m32r/seth.cgs sim/testsuite/sim/m32r/sll.cgs sim/testsuite/sim/m32r/sll3.cgs sim/testsuite/sim/m32r/slli.cgs sim/testsuite/sim/m32r/sra.cgs sim/testsuite/sim/m32r/sra3.cgs sim/testsuite/sim/m32r/srai.cgs sim/testsuite/sim/m32r/srl.cgs sim/testsuite/sim/m32r/srl3.cgs sim/testsuite/sim/m32r/srli.cgs sim/testsuite/sim/m32r/st-d.cgs sim/testsuite/sim/m32r/st-minus.cgs sim/testsuite/sim/m32r/st-plus.cgs sim/testsuite/sim/m32r/st.cgs sim/testsuite/sim/m32r/stb-d.cgs sim/testsuite/sim/m32r/stb.cgs sim/testsuite/sim/m32r/sth-d.cgs sim/testsuite/sim/m32r/sth.cgs sim/testsuite/sim/m32r/sub.cgs sim/testsuite/sim/m32r/subv.cgs sim/testsuite/sim/m32r/subx.cgs sim/testsuite/sim/m32r/testutils.inc sim/testsuite/sim/m32r/trap.cgs sim/testsuite/sim/m32r/unlock.cgs sim/testsuite/sim/m32r/uread16.ms sim/testsuite/sim/m32r/uread32.ms sim/testsuite/sim/m32r/uwrite16.ms sim/testsuite/sim/m32r/uwrite32.ms sim/testsuite/sim/m32r/xor.cgs sim/testsuite/sim/m32r/xor3.cgs sim/tic80/ChangeLog sim/tic80/Makefile.in sim/tic80/acconfig.h sim/tic80/alu.h sim/tic80/config.in sim/tic80/configure sim/tic80/configure.in sim/tic80/cpu.h sim/tic80/interp.c sim/tic80/misc.c sim/tic80/sim-calls.c sim/tic80/sim-main.h sim/tic80/tic80.dc sim/tic80/tic80.ic sim/tic80/tic80.igen sim/v850/ChangeLog sim/v850/Makefile.in sim/v850/acconfig.h sim/v850/config.in sim/v850/configure sim/v850/configure.in sim/v850/interp.c sim/v850/sim-main.h sim/v850/simops.c sim/v850/simops.h sim/v850/v850-dc sim/v850/v850.igen sim/v850/v850_sim.h sim/w65/ChangeLog sim/w65/Makefile.in sim/w65/acconfig.h sim/w65/config.in sim/w65/configure sim/w65/configure.in sim/w65/gencode.c sim/w65/interp.c sim/w65/interp.h sim/w65/run.c sim/z8k/ChangeLog sim/z8k/Makefile.in sim/z8k/acconfig.h sim/z8k/comped1.c sim/z8k/comped2.c sim/z8k/comped3.c sim/z8k/compedb3.c sim/z8k/config.in sim/z8k/configure sim/z8k/configure.in sim/z8k/iface.c sim/z8k/inlines.h sim/z8k/list.c sim/z8k/mem.c sim/z8k/mem.h sim/z8k/quick.c sim/z8k/sim.h sim/z8k/support.c sim/z8k/syscall.h sim/z8k/tconfig.in sim/z8k/tm.h sim/z8k/writecode.c symlink-tree texinfo/texinfo.tex ylwrap
Diffstat (limited to 'gdb/gnu-nat.c')
-rw-r--r--gdb/gnu-nat.c3439
1 files changed, 0 insertions, 3439 deletions
diff --git a/gdb/gnu-nat.c b/gdb/gnu-nat.c
deleted file mode 100644
index a4b8020..0000000
--- a/gdb/gnu-nat.c
+++ /dev/null
@@ -1,3439 +0,0 @@
-/* Interface GDB to the GNU Hurd.
- Copyright 1992, 1995, 1996, 1997, 1998, 1999, 2000, 2001
- Free Software Foundation, Inc.
-
- This file is part of GDB.
-
- Written by Miles Bader <miles@gnu.ai.mit.edu>
-
- Some code and ideas from m3-nat.c by Jukka Virtanen <jtv@hut.fi>
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 59 Temple Place - Suite 330,
- Boston, MA 02111-1307, USA.
- */
-
-#include <ctype.h>
-#include <errno.h>
-#include <limits.h>
-#include <setjmp.h>
-#include <signal.h>
-#include <stdio.h>
-#include "gdb_string.h"
-#include <sys/ptrace.h>
-
-#include <mach.h>
-#include <mach_error.h>
-#include <mach/exception.h>
-#include <mach/message.h>
-#include <mach/notify.h>
-#include <mach/vm_attributes.h>
-
-#include <hurd.h>
-#include <hurd/interrupt.h>
-#include <hurd/msg.h>
-#include <hurd/msg_request.h>
-#include <hurd/process.h>
-#include <hurd/process_request.h>
-#include <hurd/signal.h>
-#include <hurd/sigpreempt.h>
-
-#include <portinfo.h>
-
-#include "defs.h"
-#include "inferior.h"
-#include "symtab.h"
-#include "value.h"
-#include "language.h"
-#include "target.h"
-#include "gdb_wait.h"
-#include "gdbcmd.h"
-#include "gdbcore.h"
-#include "gdbthread.h"
-#include "gdb_assert.h"
-
-#include "gnu-nat.h"
-
-#include "exc_request_S.h"
-#include "notify_S.h"
-#include "process_reply_S.h"
-#include "msg_reply_S.h"
-#include "exc_request_U.h"
-#include "msg_U.h"
-
-static process_t proc_server = MACH_PORT_NULL;
-
-/* If we've sent a proc_wait_request to the proc server, the pid of the
- process we asked about. We can only ever have one outstanding. */
-int proc_wait_pid = 0;
-
-/* The number of wait requests we've sent, and expect replies from. */
-int proc_waits_pending = 0;
-
-int gnu_debug_flag = 0;
-
-/* Forward decls */
-
-extern struct target_ops gnu_ops;
-
-struct inf *make_inf ();
-void inf_clear_wait (struct inf *inf);
-void inf_cleanup (struct inf *inf);
-void inf_startup (struct inf *inf, int pid);
-int inf_update_suspends (struct inf *inf);
-void inf_set_pid (struct inf *inf, pid_t pid);
-void inf_validate_procs (struct inf *inf);
-void inf_steal_exc_ports (struct inf *inf);
-void inf_restore_exc_ports (struct inf *inf);
-struct proc *inf_tid_to_proc (struct inf *inf, int tid);
-inline void inf_set_threads_resume_sc (struct inf *inf,
- struct proc *run_thread,
- int run_others);
-inline int inf_set_threads_resume_sc_for_signal_thread (struct inf *inf);
-inline void inf_suspend (struct inf *inf);
-inline void inf_resume (struct inf *inf);
-void inf_set_step_thread (struct inf *inf, struct proc *proc);
-void inf_detach (struct inf *inf);
-void inf_attach (struct inf *inf, int pid);
-void inf_signal (struct inf *inf, enum target_signal sig);
-void inf_continue (struct inf *inf);
-
-#define inf_debug(_inf, msg, args...) \
- do { struct inf *__inf = (_inf); \
- debug ("{inf %d %p}: " msg, __inf->pid, __inf , ##args); } while (0)
-
-void proc_abort (struct proc *proc, int force);
-struct proc *make_proc (struct inf *inf, mach_port_t port, int tid);
-struct proc *_proc_free (struct proc *proc);
-int proc_update_sc (struct proc *proc);
-error_t proc_get_exception_port (struct proc *proc, mach_port_t * port);
-error_t proc_set_exception_port (struct proc *proc, mach_port_t port);
-static mach_port_t _proc_get_exc_port (struct proc *proc);
-void proc_steal_exc_port (struct proc *proc, mach_port_t exc_port);
-void proc_restore_exc_port (struct proc *proc);
-int proc_trace (struct proc *proc, int set);
-
-/* Evaluate RPC_EXPR in a scope with the variables MSGPORT and REFPORT bound
- to INF's msg port and task port respectively. If it has no msg port,
- EIEIO is returned. INF must refer to a running process! */
-#define INF_MSGPORT_RPC(inf, rpc_expr) \
- HURD_MSGPORT_RPC (proc_getmsgport (proc_server, inf->pid, &msgport), \
- (refport = inf->task->port, 0), 0, \
- msgport ? (rpc_expr) : EIEIO)
-
-/* Like INF_MSGPORT_RPC, but will also resume the signal thread to ensure
- there's someone around to deal with the RPC (and resuspend things
- afterwards). This effects INF's threads' resume_sc count. */
-#define INF_RESUME_MSGPORT_RPC(inf, rpc_expr) \
- (inf_set_threads_resume_sc_for_signal_thread (inf) \
- ? ({ error_t __e; \
- inf_resume (inf); \
- __e = INF_MSGPORT_RPC (inf, rpc_expr); \
- inf_suspend (inf); \
- __e; }) \
- : EIEIO)
-
-
-/* The state passed by an exception message. */
-struct exc_state
- {
- int exception; /* The exception code */
- int code, subcode;
- mach_port_t handler; /* The real exception port to handle this. */
- mach_port_t reply; /* The reply port from the exception call. */
- };
-
-/* The results of the last wait an inf did. */
-struct inf_wait
- {
- struct target_waitstatus status; /* The status returned to gdb. */
- struct exc_state exc; /* The exception that caused us to return. */
- struct proc *thread; /* The thread in question. */
- int suppress; /* Something trivial happened. */
- };
-
-/* The state of an inferior. */
-struct inf
- {
- /* Fields describing the current inferior. */
-
- struct proc *task; /* The mach task. */
- struct proc *threads; /* A linked list of all threads in TASK. */
-
- /* True if THREADS needn't be validated by querying the task. We assume that
- we and the task in question are the only ones frobbing the thread list,
- so as long as we don't let any code run, we don't have to worry about
- THREADS changing. */
- int threads_up_to_date;
-
- pid_t pid; /* The real system PID. */
-
- struct inf_wait wait; /* What to return from target_wait. */
-
- /* One thread proc in INF may be in `single-stepping mode'. This is it. */
- struct proc *step_thread;
-
- /* The thread we think is the signal thread. */
- struct proc *signal_thread;
-
- mach_port_t event_port; /* Where we receive various msgs. */
-
- /* True if we think at least one thread in the inferior could currently be
- running. */
- unsigned int running:1;
-
- /* True if the process has stopped (in the proc server sense). Note that
- since a proc server `stop' leaves the signal thread running, the inf can
- be RUNNING && STOPPED... */
- unsigned int stopped:1;
-
- /* True if the inferior has no message port. */
- unsigned int nomsg:1;
-
- /* True if the inferior is traced. */
- unsigned int traced:1;
-
- /* True if we shouldn't try waiting for the inferior, usually because we
- can't for some reason. */
- unsigned int no_wait:1;
-
- /* When starting a new inferior, we don't try to validate threads until all
- the proper execs have been done. This is a count of how many execs we
- expect to happen. */
- unsigned pending_execs;
-
- /* Fields describing global state */
-
- /* The task suspend count used when gdb has control. This is normally 1 to
- make things easier for us, but sometimes (like when attaching to vital
- system servers) it may be desirable to let the task continue to run
- (pausing individual threads as necessary). */
- int pause_sc;
-
- /* The task suspend count left when detaching from a task. */
- int detach_sc;
-
- /* The initial values used for the run_sc and pause_sc of newly discovered
- threads -- see the definition of those fields in struct proc. */
- int default_thread_run_sc;
- int default_thread_pause_sc;
- int default_thread_detach_sc;
-
- /* True if the process should be traced when started/attached. Newly
- started processes *must* be traced at first to exec them properly, but
- if this is false, tracing is turned off as soon it has done so. */
- int want_signals;
-
- /* True if exceptions from the inferior process should be trapped. This
- must be on to use breakpoints. */
- int want_exceptions;
- };
-
-
-int
-__proc_pid (struct proc *proc)
-{
- return proc->inf->pid;
-}
-
-
-/* Update PROC's real suspend count to match it's desired one. Returns true
- if we think PROC is now in a runnable state. */
-int
-proc_update_sc (struct proc *proc)
-{
- int running;
- int err = 0;
- int delta = proc->sc - proc->cur_sc;
-
- if (delta)
- proc_debug (proc, "sc: %d --> %d", proc->cur_sc, proc->sc);
-
- if (proc->sc == 0 && proc->state_changed)
- /* Since PROC may start running, we must write back any state changes. */
- {
- gdb_assert (proc_is_thread (proc));
- proc_debug (proc, "storing back changed thread state");
- err = thread_set_state (proc->port, THREAD_STATE_FLAVOR,
- (thread_state_t) &proc->state, THREAD_STATE_SIZE);
- if (!err)
- proc->state_changed = 0;
- }
-
- if (delta > 0)
- {
- while (delta-- > 0 && !err)
- {
- if (proc_is_task (proc))
- err = task_suspend (proc->port);
- else
- err = thread_suspend (proc->port);
- }
- }
- else
- {
- while (delta++ < 0 && !err)
- {
- if (proc_is_task (proc))
- err = task_resume (proc->port);
- else
- err = thread_resume (proc->port);
- }
- }
- if (!err)
- proc->cur_sc = proc->sc;
-
- /* If we got an error, then the task/thread has disappeared. */
- running = !err && proc->sc == 0;
-
- proc_debug (proc, "is %s", err ? "dead" : running ? "running" : "suspended");
- if (err)
- proc_debug (proc, "err = %s", safe_strerror (err));
-
- if (running)
- {
- proc->aborted = 0;
- proc->state_valid = proc->state_changed = 0;
- proc->fetched_regs = 0;
- }
-
- return running;
-}
-
-
-/* Thread_abort is called on PROC if needed. PROC must be a thread proc.
- If PROC is deemed `precious', then nothing is done unless FORCE is true.
- In particular, a thread is precious if it's running (in which case forcing
- it includes suspending it first), or if it has an exception pending. */
-void
-proc_abort (struct proc *proc, int force)
-{
- gdb_assert (proc_is_thread (proc));
-
- if (!proc->aborted)
- {
- struct inf *inf = proc->inf;
- int running = (proc->cur_sc == 0 && inf->task->cur_sc == 0);
-
- if (running && force)
- {
- proc->sc = 1;
- inf_update_suspends (proc->inf);
- running = 0;
- warning ("Stopped %s.", proc_string (proc));
- }
- else if (proc == inf->wait.thread && inf->wait.exc.reply && !force)
- /* An exception is pending on PROC, which don't mess with. */
- running = 1;
-
- if (!running)
- /* We only abort the thread if it's not actually running. */
- {
- thread_abort (proc->port);
- proc_debug (proc, "aborted");
- proc->aborted = 1;
- }
- else
- proc_debug (proc, "not aborting");
- }
-}
-
-/* Make sure that the state field in PROC is up to date, and return a pointer
- to it, or 0 if something is wrong. If WILL_MODIFY is true, makes sure
- that the thread is stopped and aborted first, and sets the state_changed
- field in PROC to true. */
-thread_state_t
-proc_get_state (struct proc *proc, int will_modify)
-{
- int was_aborted = proc->aborted;
-
- proc_debug (proc, "updating state info%s",
- will_modify ? " (with intention to modify)" : "");
-
- proc_abort (proc, will_modify);
-
- if (!was_aborted && proc->aborted)
- /* PROC's state may have changed since we last fetched it. */
- proc->state_valid = 0;
-
- if (!proc->state_valid)
- {
- mach_msg_type_number_t state_size = THREAD_STATE_SIZE;
- error_t err =
- thread_get_state (proc->port, THREAD_STATE_FLAVOR,
- (thread_state_t) &proc->state, &state_size);
- proc_debug (proc, "getting thread state");
- proc->state_valid = !err;
- }
-
- if (proc->state_valid)
- {
- if (will_modify)
- proc->state_changed = 1;
- return (thread_state_t) &proc->state;
- }
- else
- return 0;
-}
-
-
-/* Set PORT to PROC's exception port. */
-error_t
-proc_get_exception_port (struct proc * proc, mach_port_t * port)
-{
- if (proc_is_task (proc))
- return task_get_exception_port (proc->port, port);
- else
- return thread_get_exception_port (proc->port, port);
-}
-
-/* Set PROC's exception port to PORT. */
-error_t
-proc_set_exception_port (struct proc * proc, mach_port_t port)
-{
- proc_debug (proc, "setting exception port: %d", port);
- if (proc_is_task (proc))
- return task_set_exception_port (proc->port, port);
- else
- return thread_set_exception_port (proc->port, port);
-}
-
-/* Get PROC's exception port, cleaning up a bit if proc has died. */
-static mach_port_t
-_proc_get_exc_port (struct proc *proc)
-{
- mach_port_t exc_port;
- error_t err = proc_get_exception_port (proc, &exc_port);
-
- if (err)
- /* PROC must be dead. */
- {
- if (proc->exc_port)
- mach_port_deallocate (mach_task_self (), proc->exc_port);
- proc->exc_port = MACH_PORT_NULL;
- if (proc->saved_exc_port)
- mach_port_deallocate (mach_task_self (), proc->saved_exc_port);
- proc->saved_exc_port = MACH_PORT_NULL;
- }
-
- return exc_port;
-}
-
-/* Replace PROC's exception port with EXC_PORT, unless it's already been
- done. Stash away any existing exception port so we can restore it later. */
-void
-proc_steal_exc_port (struct proc *proc, mach_port_t exc_port)
-{
- mach_port_t cur_exc_port = _proc_get_exc_port (proc);
-
- if (cur_exc_port)
- {
- error_t err = 0;
-
- proc_debug (proc, "inserting exception port: %d", exc_port);
-
- if (cur_exc_port != exc_port)
- /* Put in our exception port. */
- err = proc_set_exception_port (proc, exc_port);
-
- if (err || cur_exc_port == proc->exc_port)
- /* We previously set the exception port, and it's still set. So we
- just keep the old saved port which is what the proc set. */
- {
- if (cur_exc_port)
- mach_port_deallocate (mach_task_self (), cur_exc_port);
- }
- else
- /* Keep a copy of PROC's old exception port so it can be restored. */
- {
- if (proc->saved_exc_port)
- mach_port_deallocate (mach_task_self (), proc->saved_exc_port);
- proc->saved_exc_port = cur_exc_port;
- }
-
- proc_debug (proc, "saved exception port: %d", proc->saved_exc_port);
-
- if (!err)
- proc->exc_port = exc_port;
- else
- warning ("Error setting exception port for %s: %s",
- proc_string (proc), safe_strerror (err));
- }
-}
-
-/* If we previously replaced PROC's exception port, put back what we
- found there at the time, unless *our* exception port has since been
- overwritten, in which case who knows what's going on. */
-void
-proc_restore_exc_port (struct proc *proc)
-{
- mach_port_t cur_exc_port = _proc_get_exc_port (proc);
-
- if (cur_exc_port)
- {
- error_t err = 0;
-
- proc_debug (proc, "restoring real exception port");
-
- if (proc->exc_port == cur_exc_port)
- /* Our's is still there. */
- err = proc_set_exception_port (proc, proc->saved_exc_port);
-
- if (proc->saved_exc_port)
- mach_port_deallocate (mach_task_self (), proc->saved_exc_port);
- proc->saved_exc_port = MACH_PORT_NULL;
-
- if (!err)
- proc->exc_port = MACH_PORT_NULL;
- else
- warning ("Error setting exception port for %s: %s",
- proc_string (proc), safe_strerror (err));
- }
-}
-
-
-/* Turns hardware tracing in PROC on or off when SET is true or false,
- respectively. Returns true on success. */
-int
-proc_trace (struct proc *proc, int set)
-{
- thread_state_t state = proc_get_state (proc, 1);
-
- if (!state)
- return 0; /* the thread must be dead. */
-
- proc_debug (proc, "tracing %s", set ? "on" : "off");
-
- if (set)
- {
- /* XXX We don't get the exception unless the thread has its own
- exception port???? */
- if (proc->exc_port == MACH_PORT_NULL)
- proc_steal_exc_port (proc, proc->inf->event_port);
- THREAD_STATE_SET_TRACED (state);
- }
- else
- THREAD_STATE_CLEAR_TRACED (state);
-
- return 1;
-}
-
-
-/* A variable from which to assign new TIDs. */
-static int next_thread_id = 1;
-
-/* Returns a new proc structure with the given fields. Also adds a
- notification for PORT becoming dead to be sent to INF's notify port. */
-struct proc *
-make_proc (struct inf *inf, mach_port_t port, int tid)
-{
- error_t err;
- mach_port_t prev_port = MACH_PORT_NULL;
- struct proc *proc = xmalloc (sizeof (struct proc));
-
- proc->port = port;
- proc->tid = tid;
- proc->inf = inf;
- proc->next = 0;
- proc->saved_exc_port = MACH_PORT_NULL;
- proc->exc_port = MACH_PORT_NULL;
-
- proc->sc = 0;
- proc->cur_sc = 0;
-
- /* Note that these are all the values for threads; the task simply uses the
- corresponding field in INF directly. */
- proc->run_sc = inf->default_thread_run_sc;
- proc->pause_sc = inf->default_thread_pause_sc;
- proc->detach_sc = inf->default_thread_detach_sc;
- proc->resume_sc = proc->run_sc;
-
- proc->aborted = 0;
- proc->dead = 0;
- proc->state_valid = 0;
- proc->state_changed = 0;
-
- proc_debug (proc, "is new");
-
- /* Get notified when things die. */
- err =
- mach_port_request_notification (mach_task_self (), port,
- MACH_NOTIFY_DEAD_NAME, 1,
- inf->event_port,
- MACH_MSG_TYPE_MAKE_SEND_ONCE,
- &prev_port);
- if (err)
- warning ("Couldn't request notification for port %d: %s",
- port, safe_strerror (err));
- else
- {
- proc_debug (proc, "notifications to: %d", inf->event_port);
- if (prev_port != MACH_PORT_NULL)
- mach_port_deallocate (mach_task_self (), prev_port);
- }
-
- if (inf->want_exceptions)
- {
- if (proc_is_task (proc))
- /* Make the task exception port point to us. */
- proc_steal_exc_port (proc, inf->event_port);
- else
- /* Just clear thread exception ports -- they default to the
- task one. */
- proc_steal_exc_port (proc, MACH_PORT_NULL);
- }
-
- return proc;
-}
-
-/* Frees PROC and any resources it uses, and returns the value of PROC's
- next field. */
-struct proc *
-_proc_free (struct proc *proc)
-{
- struct inf *inf = proc->inf;
- struct proc *next = proc->next;
-
- proc_debug (proc, "freeing...");
-
- if (proc == inf->step_thread)
- /* Turn off single stepping. */
- inf_set_step_thread (inf, 0);
- if (proc == inf->wait.thread)
- inf_clear_wait (inf);
- if (proc == inf->signal_thread)
- inf->signal_thread = 0;
-
- if (proc->port != MACH_PORT_NULL)
- {
- if (proc->exc_port != MACH_PORT_NULL)
- /* Restore the original exception port. */
- proc_restore_exc_port (proc);
- if (proc->cur_sc != 0)
- /* Resume the thread/task. */
- {
- proc->sc = 0;
- proc_update_sc (proc);
- }
- mach_port_deallocate (mach_task_self (), proc->port);
- }
-
- xfree (proc);
- return next;
-}
-
-
-struct inf *
-make_inf (void)
-{
- struct inf *inf = xmalloc (sizeof (struct inf));
-
- inf->task = 0;
- inf->threads = 0;
- inf->threads_up_to_date = 0;
- inf->pid = 0;
- inf->wait.status.kind = TARGET_WAITKIND_SPURIOUS;
- inf->wait.thread = 0;
- inf->wait.exc.handler = MACH_PORT_NULL;
- inf->wait.exc.reply = MACH_PORT_NULL;
- inf->step_thread = 0;
- inf->signal_thread = 0;
- inf->event_port = MACH_PORT_NULL;
- inf->running = 0;
- inf->stopped = 0;
- inf->nomsg = 1;
- inf->traced = 0;
- inf->no_wait = 0;
- inf->pending_execs = 0;
- inf->pause_sc = 1;
- inf->detach_sc = 0;
- inf->default_thread_run_sc = 0;
- inf->default_thread_pause_sc = 0;
- inf->default_thread_detach_sc = 0;
- inf->want_signals = 1; /* By default */
- inf->want_exceptions = 1; /* By default */
-
- return inf;
-}
-
-/* Clear INF's target wait status. */
-void
-inf_clear_wait (struct inf *inf)
-{
- inf_debug (inf, "clearing wait");
- inf->wait.status.kind = TARGET_WAITKIND_SPURIOUS;
- inf->wait.thread = 0;
- inf->wait.suppress = 0;
- if (inf->wait.exc.handler != MACH_PORT_NULL)
- {
- mach_port_deallocate (mach_task_self (), inf->wait.exc.handler);
- inf->wait.exc.handler = MACH_PORT_NULL;
- }
- if (inf->wait.exc.reply != MACH_PORT_NULL)
- {
- mach_port_deallocate (mach_task_self (), inf->wait.exc.reply);
- inf->wait.exc.reply = MACH_PORT_NULL;
- }
-}
-
-
-void
-inf_cleanup (struct inf *inf)
-{
- inf_debug (inf, "cleanup");
-
- inf_clear_wait (inf);
-
- inf_set_pid (inf, -1);
- inf->pid = 0;
- inf->running = 0;
- inf->stopped = 0;
- inf->nomsg = 1;
- inf->traced = 0;
- inf->no_wait = 0;
- inf->pending_execs = 0;
-
- if (inf->event_port)
- {
- mach_port_destroy (mach_task_self (), inf->event_port);
- inf->event_port = MACH_PORT_NULL;
- }
-}
-
-void
-inf_startup (struct inf *inf, int pid)
-{
- error_t err;
-
- inf_debug (inf, "startup: pid = %d", pid);
-
- inf_cleanup (inf);
-
- /* Make the port on which we receive all events. */
- err = mach_port_allocate (mach_task_self (),
- MACH_PORT_RIGHT_RECEIVE, &inf->event_port);
- if (err)
- error ("Error allocating event port: %s", safe_strerror (err));
-
- /* Make a send right for it, so we can easily copy it for other people. */
- mach_port_insert_right (mach_task_self (), inf->event_port,
- inf->event_port, MACH_MSG_TYPE_MAKE_SEND);
- inf_set_pid (inf, pid);
-}
-
-
-/* Close current process, if any, and attach INF to process PORT. */
-void
-inf_set_pid (struct inf *inf, pid_t pid)
-{
- task_t task_port;
- struct proc *task = inf->task;
-
- inf_debug (inf, "setting pid: %d", pid);
-
- if (pid < 0)
- task_port = MACH_PORT_NULL;
- else
- {
- error_t err = proc_pid2task (proc_server, pid, &task_port);
- if (err)
- error ("Error getting task for pid %d: %s", pid, safe_strerror (err));
- }
-
- inf_debug (inf, "setting task: %d", task_port);
-
- if (inf->pause_sc)
- task_suspend (task_port);
-
- if (task && task->port != task_port)
- {
- inf->task = 0;
- inf_validate_procs (inf); /* Trash all the threads. */
- _proc_free (task); /* And the task. */
- }
-
- if (task_port != MACH_PORT_NULL)
- {
- inf->task = make_proc (inf, task_port, PROC_TID_TASK);
- inf->threads_up_to_date = 0;
- }
-
- if (inf->task)
- {
- inf->pid = pid;
- if (inf->pause_sc)
- /* Reflect task_suspend above. */
- inf->task->sc = inf->task->cur_sc = 1;
- }
- else
- inf->pid = -1;
-}
-
-
-/* Validates INF's stopped, nomsg and traced field from the actual
- proc server state. Note that the traced field is only updated from
- the proc server state if we do not have a message port. If we do
- have a message port we'd better look at the tracemask itself. */
-static void
-inf_validate_procinfo (struct inf *inf)
-{
- char *noise;
- mach_msg_type_number_t noise_len = 0;
- struct procinfo *pi;
- mach_msg_type_number_t pi_len = 0;
- int info_flags = 0;
- error_t err =
- proc_getprocinfo (proc_server, inf->pid, &info_flags,
- (procinfo_t *) &pi, &pi_len, &noise, &noise_len);
-
- if (!err)
- {
- inf->stopped = !!(pi->state & PI_STOPPED);
- inf->nomsg = !!(pi->state & PI_NOMSG);
- if (inf->nomsg)
- inf->traced = !!(pi->state & PI_TRACED);
- vm_deallocate (mach_task_self (), (vm_address_t) pi, pi_len);
- if (noise_len > 0)
- vm_deallocate (mach_task_self (), (vm_address_t) noise, noise_len);
- }
-}
-
-/* Validates INF's task suspend count. If it's higher than we expect,
- verify with the user before `stealing' the extra count. */
-static void
-inf_validate_task_sc (struct inf *inf)
-{
- char *noise;
- mach_msg_type_number_t noise_len = 0;
- struct procinfo *pi;
- mach_msg_type_number_t pi_len = 0;
- int info_flags = PI_FETCH_TASKINFO;
- int suspend_count = -1;
- error_t err;
-
- retry:
- err = proc_getprocinfo (proc_server, inf->pid, &info_flags,
- (procinfo_t *) &pi, &pi_len, &noise, &noise_len);
- if (err)
- {
- inf->task->dead = 1; /* oh well */
- return;
- }
-
- if (inf->task->cur_sc < pi->taskinfo.suspend_count && suspend_count == -1)
- {
- /* The proc server might have suspended the task while stopping
- it. This happens when the task is handling a traced signal.
- Refetch the suspend count. The proc server should be
- finished stopping the task by now. */
- suspend_count = pi->taskinfo.suspend_count;
- goto retry;
- }
-
- suspend_count = pi->taskinfo.suspend_count;
-
- vm_deallocate (mach_task_self (), (vm_address_t) pi, pi_len);
- if (noise_len > 0)
- vm_deallocate (mach_task_self (), (vm_address_t) pi, pi_len);
-
- if (inf->task->cur_sc < suspend_count)
- {
- int abort;
-
- target_terminal_ours (); /* Allow I/O. */
- abort = !query ("Pid %d has an additional task suspend count of %d;"
- " clear it? ", inf->pid,
- suspend_count - inf->task->cur_sc);
- target_terminal_inferior (); /* Give it back to the child. */
-
- if (abort)
- error ("Additional task suspend count left untouched.");
-
- inf->task->cur_sc = suspend_count;
- }
-}
-
-/* Turns tracing for INF on or off, depending on ON, unless it already
- is. If INF is running, the resume_sc count of INF's threads will
- be modified, and the signal thread will briefly be run to change
- the trace state. */
-void
-inf_set_traced (struct inf *inf, int on)
-{
- if (on == inf->traced)
- return;
-
- if (inf->task && !inf->task->dead)
- /* Make it take effect immediately. */
- {
- sigset_t mask = on ? ~(sigset_t) 0 : 0;
- error_t err =
- INF_RESUME_MSGPORT_RPC (inf, msg_set_init_int (msgport, refport,
- INIT_TRACEMASK, mask));
- if (err == EIEIO)
- {
- if (on)
- warning ("Can't modify tracing state for pid %d: %s",
- inf->pid, "No signal thread");
- inf->traced = on;
- }
- else if (err)
- warning ("Can't modify tracing state for pid %d: %s",
- inf->pid, safe_strerror (err));
- else
- inf->traced = on;
- }
- else
- inf->traced = on;
-}
-
-
-/* Makes all the real suspend count deltas of all the procs in INF
- match the desired values. Careful to always do thread/task suspend
- counts in the safe order. Returns true if at least one thread is
- thought to be running. */
-int
-inf_update_suspends (struct inf *inf)
-{
- struct proc *task = inf->task;
- /* We don't have to update INF->threads even though we're iterating over it
- because we'll change a thread only if it already has an existing proc
- entry. */
-
- inf_debug (inf, "updating suspend counts");
-
- if (task)
- {
- struct proc *thread;
- int task_running = (task->sc == 0), thread_running = 0;
-
- if (task->sc > task->cur_sc)
- /* The task is becoming _more_ suspended; do before any threads. */
- task_running = proc_update_sc (task);
-
- if (inf->pending_execs)
- /* When we're waiting for an exec, things may be happening behind our
- back, so be conservative. */
- thread_running = 1;
-
- /* Do all the thread suspend counts. */
- for (thread = inf->threads; thread; thread = thread->next)
- thread_running |= proc_update_sc (thread);
-
- if (task->sc != task->cur_sc)
- /* We didn't do the task first, because we wanted to wait for the
- threads; do it now. */
- task_running = proc_update_sc (task);
-
- inf_debug (inf, "%srunning...",
- (thread_running && task_running) ? "" : "not ");
-
- inf->running = thread_running && task_running;
-
- /* Once any thread has executed some code, we can't depend on the
- threads list any more. */
- if (inf->running)
- inf->threads_up_to_date = 0;
-
- return inf->running;
- }
-
- return 0;
-}
-
-
-/* Converts a GDB pid to a struct proc. */
-struct proc *
-inf_tid_to_thread (struct inf *inf, int tid)
-{
- struct proc *thread = inf->threads;
-
- while (thread)
- if (thread->tid == tid)
- return thread;
- else
- thread = thread->next;
- return 0;
-}
-
-/* Converts a thread port to a struct proc. */
-struct proc *
-inf_port_to_thread (struct inf *inf, mach_port_t port)
-{
- struct proc *thread = inf->threads;
- while (thread)
- if (thread->port == port)
- return thread;
- else
- thread = thread->next;
- return 0;
-}
-
-
-/* Make INF's list of threads be consistent with reality of TASK. */
-void
-inf_validate_procs (struct inf *inf)
-{
- thread_array_t threads;
- mach_msg_type_number_t num_threads, i;
- struct proc *task = inf->task;
-
- /* If no threads are currently running, this function will guarantee that
- things are up to date. The exception is if there are zero threads --
- then it is almost certainly in an odd state, and probably some outside
- agent will create threads. */
- inf->threads_up_to_date = inf->threads ? !inf->running : 0;
-
- if (task)
- {
- error_t err = task_threads (task->port, &threads, &num_threads);
- inf_debug (inf, "fetching threads");
- if (err)
- /* TASK must be dead. */
- {
- task->dead = 1;
- task = 0;
- }
- }
-
- if (!task)
- {
- num_threads = 0;
- inf_debug (inf, "no task");
- }
-
- {
- /* Make things normally linear. */
- mach_msg_type_number_t search_start = 0;
- /* Which thread in PROCS corresponds to each task thread, & the task. */
- struct proc *matched[num_threads + 1];
- /* The last thread in INF->threads, so we can add to the end. */
- struct proc *last = 0;
- /* The current thread we're considering. */
- struct proc *thread = inf->threads;
-
- bzero (matched, sizeof (matched));
-
- while (thread)
- {
- mach_msg_type_number_t left;
-
- for (i = search_start, left = num_threads; left; i++, left--)
- {
- if (i >= num_threads)
- i -= num_threads; /* I wrapped around. */
- if (thread->port == threads[i])
- /* We already know about this thread. */
- {
- matched[i] = thread;
- last = thread;
- thread = thread->next;
- search_start++;
- break;
- }
- }
-
- if (!left)
- {
- proc_debug (thread, "died!");
- thread->port = MACH_PORT_NULL;
- thread = _proc_free (thread); /* THREAD is dead. */
- (last ? last->next : inf->threads) = thread;
- }
- }
-
- for (i = 0; i < num_threads; i++)
- {
- if (matched[i])
- /* Throw away the duplicate send right. */
- mach_port_deallocate (mach_task_self (), threads[i]);
- else
- /* THREADS[I] is a thread we don't know about yet! */
- {
- thread = make_proc (inf, threads[i], next_thread_id++);
- (last ? last->next : inf->threads) = thread;
- last = thread;
- proc_debug (thread, "new thread: %d", threads[i]);
- add_thread (pid_to_ptid (thread->tid)); /* Tell GDB's generic thread code. */
- }
- }
-
- vm_deallocate (mach_task_self (),
- (vm_address_t) threads, (num_threads * sizeof (thread_t)));
- }
-}
-
-
-/* Makes sure that INF's thread list is synced with the actual process. */
-inline int
-inf_update_procs (struct inf *inf)
-{
- if (!inf->task)
- return 0;
- if (!inf->threads_up_to_date)
- inf_validate_procs (inf);
- return !!inf->task;
-}
-
-/* Sets the resume_sc of each thread in inf. That of RUN_THREAD is set to 0,
- and others are set to their run_sc if RUN_OTHERS is true, and otherwise
- their pause_sc. */
-inline void
-inf_set_threads_resume_sc (struct inf *inf,
- struct proc *run_thread, int run_others)
-{
- struct proc *thread;
- inf_update_procs (inf);
- for (thread = inf->threads; thread; thread = thread->next)
- if (thread == run_thread)
- thread->resume_sc = 0;
- else if (run_others)
- thread->resume_sc = thread->run_sc;
- else
- thread->resume_sc = thread->pause_sc;
-}
-
-
-/* Cause INF to continue execution immediately; individual threads may still
- be suspended (but their suspend counts will be updated). */
-inline void
-inf_resume (struct inf *inf)
-{
- struct proc *thread;
-
- inf_update_procs (inf);
-
- for (thread = inf->threads; thread; thread = thread->next)
- thread->sc = thread->resume_sc;
-
- if (inf->task)
- {
- if (!inf->pending_execs)
- /* Try to make sure our task count is correct -- in the case where
- we're waiting for an exec though, things are too volatile, so just
- assume things will be reasonable (which they usually will be). */
- inf_validate_task_sc (inf);
- inf->task->sc = 0;
- }
-
- inf_update_suspends (inf);
-}
-
-/* Cause INF to stop execution immediately; individual threads may still
- be running. */
-inline void
-inf_suspend (struct inf *inf)
-{
- struct proc *thread;
-
- inf_update_procs (inf);
-
- for (thread = inf->threads; thread; thread = thread->next)
- thread->sc = thread->pause_sc;
-
- if (inf->task)
- inf->task->sc = inf->pause_sc;
-
- inf_update_suspends (inf);
-}
-
-
-/* INF has one thread PROC that is in single-stepping mode. This
- function changes it to be PROC, changing any old step_thread to be
- a normal one. A PROC of 0 clears any existing value. */
-void
-inf_set_step_thread (struct inf *inf, struct proc *thread)
-{
- gdb_assert (!thread || proc_is_thread (thread));
-
- if (thread)
- inf_debug (inf, "setting step thread: %d/%d", inf->pid, thread->tid);
- else
- inf_debug (inf, "clearing step thread");
-
- if (inf->step_thread != thread)
- {
- if (inf->step_thread && inf->step_thread->port != MACH_PORT_NULL)
- if (!proc_trace (inf->step_thread, 0))
- return;
- if (thread && proc_trace (thread, 1))
- inf->step_thread = thread;
- else
- inf->step_thread = 0;
- }
-}
-
-
-/* Set up the thread resume_sc's so that only the signal thread is running
- (plus whatever other thread are set to always run). Returns true if we
- did so, or false if we can't find a signal thread. */
-inline int
-inf_set_threads_resume_sc_for_signal_thread (struct inf *inf)
-{
- if (inf->signal_thread)
- {
- inf_set_threads_resume_sc (inf, inf->signal_thread, 0);
- return 1;
- }
- else
- return 0;
-}
-
-static void
-inf_update_signal_thread (struct inf *inf)
-{
- /* XXX for now we assume that if there's a msgport, the 2nd thread is
- the signal thread. */
- inf->signal_thread = inf->threads ? inf->threads->next : 0;
-}
-
-
-/* Detachs from INF's inferior task, letting it run once again... */
-void
-inf_detach (struct inf *inf)
-{
- struct proc *task = inf->task;
-
- inf_debug (inf, "detaching...");
-
- inf_clear_wait (inf);
- inf_set_step_thread (inf, 0);
-
- if (task)
- {
- struct proc *thread;
-
- inf_validate_procinfo (inf);
-
- inf_set_traced (inf, 0);
- if (inf->stopped)
- {
- if (inf->nomsg)
- inf_continue (inf);
- else
- inf_signal (inf, TARGET_SIGNAL_0);
- }
-
- proc_restore_exc_port (task);
- task->sc = inf->detach_sc;
-
- for (thread = inf->threads; thread; thread = thread->next)
- {
- proc_restore_exc_port (thread);
- thread->sc = thread->detach_sc;
- }
-
- inf_update_suspends (inf);
- }
-
- inf_cleanup (inf);
-}
-
-/* Attaches INF to the process with process id PID, returning it in a
- suspended state suitable for debugging. */
-void
-inf_attach (struct inf *inf, int pid)
-{
- inf_debug (inf, "attaching: %d", pid);
-
- if (inf->pid)
- inf_detach (inf);
-
- inf_startup (inf, pid);
-}
-
-
-/* Makes sure that we've got our exception ports entrenched in the process. */
-void
-inf_steal_exc_ports (struct inf *inf)
-{
- struct proc *thread;
-
- inf_debug (inf, "stealing exception ports");
-
- inf_set_step_thread (inf, 0); /* The step thread is special. */
-
- proc_steal_exc_port (inf->task, inf->event_port);
- for (thread = inf->threads; thread; thread = thread->next)
- proc_steal_exc_port (thread, MACH_PORT_NULL);
-}
-
-/* Makes sure the process has its own exception ports. */
-void
-inf_restore_exc_ports (struct inf *inf)
-{
- struct proc *thread;
-
- inf_debug (inf, "restoring exception ports");
-
- inf_set_step_thread (inf, 0); /* The step thread is special. */
-
- proc_restore_exc_port (inf->task);
- for (thread = inf->threads; thread; thread = thread->next)
- proc_restore_exc_port (thread);
-}
-
-
-/* Deliver signal SIG to INF. If INF is stopped, delivering a signal, even
- signal 0, will continue it. INF is assumed to be in a paused state, and
- the resume_sc's of INF's threads may be affected. */
-void
-inf_signal (struct inf *inf, enum target_signal sig)
-{
- error_t err = 0;
- int host_sig = target_signal_to_host (sig);
-
-#define NAME target_signal_to_name (sig)
-
- if (host_sig >= _NSIG)
- /* A mach exception. Exceptions are encoded in the signal space by
- putting them after _NSIG; this assumes they're positive (and not
- extremely large)! */
- {
- struct inf_wait *w = &inf->wait;
- if (w->status.kind == TARGET_WAITKIND_STOPPED
- && w->status.value.sig == sig
- && w->thread && !w->thread->aborted)
- /* We're passing through the last exception we received. This is
- kind of bogus, because exceptions are per-thread whereas gdb
- treats signals as per-process. We just forward the exception to
- the correct handler, even it's not for the same thread as TID --
- i.e., we pretend it's global. */
- {
- struct exc_state *e = &w->exc;
- inf_debug (inf, "passing through exception:"
- " task = %d, thread = %d, exc = %d"
- ", code = %d, subcode = %d",
- w->thread->port, inf->task->port,
- e->exception, e->code, e->subcode);
- err =
- exception_raise_request (e->handler,
- e->reply, MACH_MSG_TYPE_MOVE_SEND_ONCE,
- w->thread->port, inf->task->port,
- e->exception, e->code, e->subcode);
- }
- else
- error ("Can't forward spontaneous exception (%s).", NAME);
- }
- else
- /* A Unix signal. */
- if (inf->stopped)
- /* The process is stopped and expecting a signal. Just send off a
- request and let it get handled when we resume everything. */
- {
- inf_debug (inf, "sending %s to stopped process", NAME);
- err =
- INF_MSGPORT_RPC (inf,
- msg_sig_post_untraced_request (msgport,
- inf->event_port,
- MACH_MSG_TYPE_MAKE_SEND_ONCE,
- host_sig, 0,
- refport));
- if (!err)
- /* Posting an untraced signal automatically continues it.
- We clear this here rather than when we get the reply
- because we'd rather assume it's not stopped when it
- actually is, than the reverse. */
- inf->stopped = 0;
- }
- else
- /* It's not expecting it. We have to let just the signal thread
- run, and wait for it to get into a reasonable state before we
- can continue the rest of the process. When we finally resume the
- process the signal we request will be the very first thing that
- happens. */
- {
- inf_debug (inf, "sending %s to unstopped process"
- " (so resuming signal thread)", NAME);
- err =
- INF_RESUME_MSGPORT_RPC (inf,
- msg_sig_post_untraced (msgport, host_sig,
- 0, refport));
- }
-
- if (err == EIEIO)
- /* Can't do too much... */
- warning ("Can't deliver signal %s: No signal thread.", NAME);
- else if (err)
- warning ("Delivering signal %s: %s", NAME, safe_strerror (err));
-
-#undef NAME
-}
-
-
-/* Continue INF without delivering a signal. This is meant to be used
- when INF does not have a message port. */
-void
-inf_continue (struct inf *inf)
-{
- process_t proc;
- error_t err = proc_pid2proc (proc_server, inf->pid, &proc);
-
- if (!err)
- {
- inf_debug (inf, "continuing process");
-
- err = proc_mark_cont (proc);
- if (!err)
- {
- struct proc *thread;
-
- for (thread = inf->threads; thread; thread = thread->next)
- thread_resume (thread->port);
-
- inf->stopped = 0;
- }
- }
-
- if (err)
- warning ("Can't continue process: %s", safe_strerror (err));
-}
-
-
-/* The inferior used for all gdb target ops. */
-struct inf *current_inferior = 0;
-
-/* The inferior being waited for by gnu_wait. Since GDB is decidely not
- multi-threaded, we don't bother to lock this. */
-struct inf *waiting_inf;
-
-/* Wait for something to happen in the inferior, returning what in STATUS. */
-static ptid_t
-gnu_wait (ptid_t tid, struct target_waitstatus *status)
-{
- struct msg
- {
- mach_msg_header_t hdr;
- mach_msg_type_t type;
- int data[8000];
- } msg;
- error_t err;
- struct proc *thread;
- struct inf *inf = current_inferior;
-
- extern int exc_server (mach_msg_header_t *, mach_msg_header_t *);
- extern int msg_reply_server (mach_msg_header_t *, mach_msg_header_t *);
- extern int notify_server (mach_msg_header_t *, mach_msg_header_t *);
- extern int process_reply_server (mach_msg_header_t *, mach_msg_header_t *);
-
- gdb_assert (inf->task);
-
- if (!inf->threads && !inf->pending_execs)
- /* No threads! Assume that maybe some outside agency is frobbing our
- task, and really look for new threads. If we can't find any, just tell
- the user to try again later. */
- {
- inf_validate_procs (inf);
- if (!inf->threads && !inf->task->dead)
- error ("There are no threads; try again later.");
- }
-
- waiting_inf = inf;
-
- inf_debug (inf, "waiting for: %d", PIDGET (tid));
-
-rewait:
- if (proc_wait_pid != inf->pid && !inf->no_wait)
- /* Always get information on events from the proc server. */
- {
- inf_debug (inf, "requesting wait on pid %d", inf->pid);
-
- if (proc_wait_pid)
- /* The proc server is single-threaded, and only allows a single
- outstanding wait request, so we have to cancel the previous one. */
- {
- inf_debug (inf, "cancelling previous wait on pid %d", proc_wait_pid);
- interrupt_operation (proc_server, 0);
- }
-
- err =
- proc_wait_request (proc_server, inf->event_port, inf->pid, WUNTRACED);
- if (err)
- warning ("wait request failed: %s", safe_strerror (err));
- else
- {
- inf_debug (inf, "waits pending: %d", proc_waits_pending);
- proc_wait_pid = inf->pid;
- /* Even if proc_waits_pending was > 0 before, we still won't
- get any other replies, because it was either from a
- different INF, or a different process attached to INF --
- and the event port, which is the wait reply port, changes
- when you switch processes. */
- proc_waits_pending = 1;
- }
- }
-
- inf_clear_wait (inf);
-
- /* What can happen? (1) Dead name notification; (2) Exceptions arrive;
- (3) wait reply from the proc server. */
-
- inf_debug (inf, "waiting for an event...");
- err = mach_msg (&msg.hdr, MACH_RCV_MSG | MACH_RCV_INTERRUPT,
- 0, sizeof (struct msg), inf->event_port,
- MACH_MSG_TIMEOUT_NONE, MACH_PORT_NULL);
-
- /* Re-suspend the task. */
- inf_suspend (inf);
-
- if (!inf->task && inf->pending_execs)
- /* When doing an exec, it's possible that the old task wasn't reused
- (e.g., setuid execs). So if the task seems to have disappeared,
- attempt to refetch it, as the pid should still be the same. */
- inf_set_pid (inf, inf->pid);
-
- if (err == EMACH_RCV_INTERRUPTED)
- inf_debug (inf, "interrupted");
- else if (err)
- error ("Couldn't wait for an event: %s", safe_strerror (err));
- else
- {
- struct
- {
- mach_msg_header_t hdr;
- mach_msg_type_t err_type;
- kern_return_t err;
- char noise[200];
- }
- reply;
-
- inf_debug (inf, "event: msgid = %d", msg.hdr.msgh_id);
-
- /* Handle what we got. */
- if (!notify_server (&msg.hdr, &reply.hdr)
- && !exc_server (&msg.hdr, &reply.hdr)
- && !process_reply_server (&msg.hdr, &reply.hdr)
- && !msg_reply_server (&msg.hdr, &reply.hdr))
- /* Whatever it is, it's something strange. */
- error ("Got a strange event, msg id = %d.", msg.hdr.msgh_id);
-
- if (reply.err)
- error ("Handling event, msgid = %d: %s",
- msg.hdr.msgh_id, safe_strerror (reply.err));
- }
-
- if (inf->pending_execs)
- /* We're waiting for the inferior to finish execing. */
- {
- struct inf_wait *w = &inf->wait;
- enum target_waitkind kind = w->status.kind;
-
- if (kind == TARGET_WAITKIND_SPURIOUS)
- /* Since gdb is actually counting the number of times the inferior
- stops, expecting one stop per exec, we only return major events
- while execing. */
- {
- w->suppress = 1;
- inf_debug (inf, "pending_execs = %d, ignoring minor event",
- inf->pending_execs);
- }
- else if (kind == TARGET_WAITKIND_STOPPED
- && w->status.value.sig == TARGET_SIGNAL_TRAP)
- /* Ah hah! A SIGTRAP from the inferior while starting up probably
- means we've succesfully completed an exec! */
- {
- if (--inf->pending_execs == 0)
- /* We're done! */
- {
-#if 0 /* do we need this? */
- prune_threads (1); /* Get rid of the old shell threads */
- renumber_threads (0); /* Give our threads reasonable names. */
-#endif
- }
- inf_debug (inf, "pending exec completed, pending_execs => %d",
- inf->pending_execs);
- }
- else if (kind == TARGET_WAITKIND_STOPPED)
- /* It's possible that this signal is because of a crashed process
- being handled by the hurd crash server; in this case, the process
- will have an extra task suspend, which we need to know about.
- Since the code in inf_resume that normally checks for this is
- disabled while INF->pending_execs, we do the check here instead. */
- inf_validate_task_sc (inf);
- }
-
- if (inf->wait.suppress)
- /* Some totally spurious event happened that we don't consider
- worth returning to gdb. Just keep waiting. */
- {
- inf_debug (inf, "suppressing return, rewaiting...");
- inf_resume (inf);
- goto rewait;
- }
-
- /* Pass back out our results. */
- bcopy (&inf->wait.status, status, sizeof (*status));
-
- thread = inf->wait.thread;
- if (thread)
- tid = pid_to_ptid (thread->tid);
- else
- thread = inf_tid_to_thread (inf, PIDGET (tid));
-
- if (!thread || thread->port == MACH_PORT_NULL)
- {
- /* TID is dead; try and find a new thread. */
- if (inf_update_procs (inf) && inf->threads)
- tid = pid_to_ptid (inf->threads->tid); /* The first available thread. */
- else
- tid = inferior_ptid; /* let wait_for_inferior handle exit case */
- }
-
- if (thread && PIDGET (tid) >= 0 && status->kind != TARGET_WAITKIND_SPURIOUS
- && inf->pause_sc == 0 && thread->pause_sc == 0)
- /* If something actually happened to THREAD, make sure we
- suspend it. */
- {
- thread->sc = 1;
- inf_update_suspends (inf);
- }
-
- inf_debug (inf, "returning tid = %d, status = %s (%d)", PIDGET (tid),
- status->kind == TARGET_WAITKIND_EXITED ? "EXITED"
- : status->kind == TARGET_WAITKIND_STOPPED ? "STOPPED"
- : status->kind == TARGET_WAITKIND_SIGNALLED ? "SIGNALLED"
- : status->kind == TARGET_WAITKIND_LOADED ? "LOADED"
- : status->kind == TARGET_WAITKIND_SPURIOUS ? "SPURIOUS"
- : "?",
- status->value.integer);
-
- return tid;
-}
-
-
-/* The rpc handler called by exc_server. */
-error_t
-S_exception_raise_request (mach_port_t port, mach_port_t reply_port,
- thread_t thread_port, task_t task_port,
- int exception, int code, int subcode)
-{
- struct inf *inf = waiting_inf;
- struct proc *thread = inf_port_to_thread (inf, thread_port);
-
- inf_debug (waiting_inf,
- "thread = %d, task = %d, exc = %d, code = %d, subcode = %d",
- thread_port, task_port, exception, code, subcode);
-
- if (!thread)
- /* We don't know about thread? */
- {
- inf_update_procs (inf);
- thread = inf_port_to_thread (inf, thread_port);
- if (!thread)
- /* Give up, the generating thread is gone. */
- return 0;
- }
-
- mach_port_deallocate (mach_task_self (), thread_port);
- mach_port_deallocate (mach_task_self (), task_port);
-
- if (!thread->aborted)
- /* THREAD hasn't been aborted since this exception happened (abortion
- clears any exception state), so it must be real. */
- {
- /* Store away the details; this will destroy any previous info. */
- inf->wait.thread = thread;
-
- inf->wait.status.kind = TARGET_WAITKIND_STOPPED;
-
- if (exception == EXC_BREAKPOINT)
- /* GDB likes to get SIGTRAP for breakpoints. */
- {
- inf->wait.status.value.sig = TARGET_SIGNAL_TRAP;
- mach_port_deallocate (mach_task_self (), reply_port);
- }
- else
- /* Record the exception so that we can forward it later. */
- {
- if (thread->exc_port == port)
- {
- inf_debug (waiting_inf, "Handler is thread exception port <%d>",
- thread->saved_exc_port);
- inf->wait.exc.handler = thread->saved_exc_port;
- }
- else
- {
- inf_debug (waiting_inf, "Handler is task exception port <%d>",
- inf->task->saved_exc_port);
- inf->wait.exc.handler = inf->task->saved_exc_port;
- gdb_assert (inf->task->exc_port == port);
- }
- if (inf->wait.exc.handler != MACH_PORT_NULL)
- /* Add a reference to the exception handler. */
- mach_port_mod_refs (mach_task_self (),
- inf->wait.exc.handler, MACH_PORT_RIGHT_SEND,
- 1);
-
- inf->wait.exc.exception = exception;
- inf->wait.exc.code = code;
- inf->wait.exc.subcode = subcode;
- inf->wait.exc.reply = reply_port;
-
- /* Exceptions are encoded in the signal space by putting them after
- _NSIG; this assumes they're positive (and not extremely large)! */
- inf->wait.status.value.sig =
- target_signal_from_host (_NSIG + exception);
- }
- }
- else
- /* A supppressed exception, which ignore. */
- {
- inf->wait.suppress = 1;
- mach_port_deallocate (mach_task_self (), reply_port);
- }
-
- return 0;
-}
-
-
-/* Fill in INF's wait field after a task has died without giving us more
- detailed information. */
-void
-inf_task_died_status (struct inf *inf)
-{
- warning ("Pid %d died with unknown exit status, using SIGKILL.", inf->pid);
- inf->wait.status.kind = TARGET_WAITKIND_SIGNALLED;
- inf->wait.status.value.sig = TARGET_SIGNAL_KILL;
-}
-
-/* Notify server routines. The only real one is dead name notification. */
-error_t
-do_mach_notify_dead_name (mach_port_t notify, mach_port_t dead_port)
-{
- struct inf *inf = waiting_inf;
-
- inf_debug (waiting_inf, "port = %d", dead_port);
-
- if (inf->task && inf->task->port == dead_port)
- {
- proc_debug (inf->task, "is dead");
- inf->task->port = MACH_PORT_NULL;
- if (proc_wait_pid == inf->pid)
- /* We have a wait outstanding on the process, which will return more
- detailed information, so delay until we get that. */
- inf->wait.suppress = 1;
- else
- /* We never waited for the process (maybe it wasn't a child), so just
- pretend it got a SIGKILL. */
- inf_task_died_status (inf);
- }
- else
- {
- struct proc *thread = inf_port_to_thread (inf, dead_port);
- if (thread)
- {
- proc_debug (thread, "is dead");
- thread->port = MACH_PORT_NULL;
- }
-
- if (inf->task->dead)
- /* Since the task is dead, its threads are dying with it. */
- inf->wait.suppress = 1;
- }
-
- mach_port_deallocate (mach_task_self (), dead_port);
- inf->threads_up_to_date = 0; /* Just in case */
-
- return 0;
-}
-
-
-static error_t
-ill_rpc (char *fun)
-{
- warning ("illegal rpc: %s", fun);
- return 0;
-}
-
-error_t
-do_mach_notify_no_senders (mach_port_t notify, mach_port_mscount_t count)
-{
- return ill_rpc (__FUNCTION__);
-}
-
-error_t
-do_mach_notify_port_deleted (mach_port_t notify, mach_port_t name)
-{
- return ill_rpc (__FUNCTION__);
-}
-
-error_t
-do_mach_notify_msg_accepted (mach_port_t notify, mach_port_t name)
-{
- return ill_rpc (__FUNCTION__);
-}
-
-error_t
-do_mach_notify_port_destroyed (mach_port_t notify, mach_port_t name)
-{
- return ill_rpc (__FUNCTION__);
-}
-
-error_t
-do_mach_notify_send_once (mach_port_t notify)
-{
- return ill_rpc (__FUNCTION__);
-}
-
-
-/* Process_reply server routines. We only use process_wait_reply. */
-
-error_t
-S_proc_wait_reply (mach_port_t reply, error_t err,
- int status, int sigcode, rusage_t rusage, pid_t pid)
-{
- struct inf *inf = waiting_inf;
-
- inf_debug (inf, "err = %s, pid = %d, status = 0x%x, sigcode = %d",
- err ? safe_strerror (err) : "0", pid, status, sigcode);
-
- if (err && proc_wait_pid && (!inf->task || !inf->task->port))
- /* Ack. The task has died, but the task-died notification code didn't
- tell anyone because it thought a more detailed reply from the
- procserver was forthcoming. However, we now learn that won't
- happen... So we have to act like the task just died, and this time,
- tell the world. */
- inf_task_died_status (inf);
-
- if (--proc_waits_pending == 0)
- /* PROC_WAIT_PID represents the most recent wait. We will always get
- replies in order because the proc server is single threaded. */
- proc_wait_pid = 0;
-
- inf_debug (inf, "waits pending now: %d", proc_waits_pending);
-
- if (err)
- {
- if (err != EINTR)
- {
- warning ("Can't wait for pid %d: %s", inf->pid, safe_strerror (err));
- inf->no_wait = 1;
-
- /* Since we can't see the inferior's signals, don't trap them. */
- inf_set_traced (inf, 0);
- }
- }
- else if (pid == inf->pid)
- {
- store_waitstatus (&inf->wait.status, status);
- if (inf->wait.status.kind == TARGET_WAITKIND_STOPPED)
- /* The process has sent us a signal, and stopped itself in a sane
- state pending our actions. */
- {
- inf_debug (inf, "process has stopped itself");
- inf->stopped = 1;
- }
- }
- else
- inf->wait.suppress = 1; /* Something odd happened. Ignore. */
-
- return 0;
-}
-
-error_t
-S_proc_setmsgport_reply (mach_port_t reply, error_t err,
- mach_port_t old_msg_port)
-{
- return ill_rpc (__FUNCTION__);
-}
-
-error_t
-S_proc_getmsgport_reply (mach_port_t reply, error_t err, mach_port_t msg_port)
-{
- return ill_rpc (__FUNCTION__);
-}
-
-
-/* Msg_reply server routines. We only use msg_sig_post_untraced_reply. */
-
-error_t
-S_msg_sig_post_untraced_reply (mach_port_t reply, error_t err)
-{
- struct inf *inf = waiting_inf;
-
- if (err == EBUSY)
- /* EBUSY is what we get when the crash server has grabbed control of the
- process and doesn't like what signal we tried to send it. Just act
- like the process stopped (using a signal of 0 should mean that the
- *next* time the user continues, it will pass signal 0, which the crash
- server should like). */
- {
- inf->wait.status.kind = TARGET_WAITKIND_STOPPED;
- inf->wait.status.value.sig = TARGET_SIGNAL_0;
- }
- else if (err)
- warning ("Signal delivery failed: %s", safe_strerror (err));
-
- if (err)
- /* We only get this reply when we've posted a signal to a process which we
- thought was stopped, and which we expected to continue after the signal.
- Given that the signal has failed for some reason, it's reasonable to
- assume it's still stopped. */
- inf->stopped = 1;
- else
- inf->wait.suppress = 1;
-
- return 0;
-}
-
-error_t
-S_msg_sig_post_reply (mach_port_t reply, error_t err)
-{
- return ill_rpc (__FUNCTION__);
-}
-
-
-/* Returns the number of messages queued for the receive right PORT. */
-static mach_port_msgcount_t
-port_msgs_queued (mach_port_t port)
-{
- struct mach_port_status status;
- error_t err =
- mach_port_get_receive_status (mach_task_self (), port, &status);
-
- if (err)
- return 0;
- else
- return status.mps_msgcount;
-}
-
-
-/* Resume execution of the inferior process.
-
- If STEP is nonzero, single-step it.
- If SIGNAL is nonzero, give it that signal.
-
- TID STEP:
- -1 true Single step the current thread allowing other threads to run.
- -1 false Continue the current thread allowing other threads to run.
- X true Single step the given thread, don't allow any others to run.
- X false Continue the given thread, do not allow any others to run.
- (Where X, of course, is anything except -1)
-
- Note that a resume may not `take' if there are pending exceptions/&c
- still unprocessed from the last resume we did (any given resume may result
- in multiple events returned by wait).
- */
-static void
-gnu_resume (ptid_t tid, int step, enum target_signal sig)
-{
- struct proc *step_thread = 0;
- struct inf *inf = current_inferior;
-
- inf_debug (inf, "tid = %d, step = %d, sig = %d", PIDGET (tid), step, sig);
-
- inf_validate_procinfo (inf);
-
- if (sig != TARGET_SIGNAL_0 || inf->stopped)
- {
- if (sig == TARGET_SIGNAL_0 && inf->nomsg)
- inf_continue (inf);
- else
- inf_signal (inf, sig);
- }
- else if (inf->wait.exc.reply != MACH_PORT_NULL)
- /* We received an exception to which we have chosen not to forward, so
- abort the faulting thread, which will perhaps retake it. */
- {
- proc_abort (inf->wait.thread, 1);
- warning ("Aborting %s with unforwarded exception %s.",
- proc_string (inf->wait.thread),
- target_signal_to_name (inf->wait.status.value.sig));
- }
-
- if (port_msgs_queued (inf->event_port))
- /* If there are still messages in our event queue, don't bother resuming
- the process, as we're just going to stop it right away anyway. */
- return;
-
- inf_update_procs (inf);
-
- if (PIDGET (tid) < 0)
- /* Allow all threads to run, except perhaps single-stepping one. */
- {
- inf_debug (inf, "running all threads; tid = %d", PIDGET (inferior_ptid));
- tid = inferior_ptid; /* What to step. */
- inf_set_threads_resume_sc (inf, 0, 1);
- }
- else
- /* Just allow a single thread to run. */
- {
- struct proc *thread = inf_tid_to_thread (inf, PIDGET (tid));
- if (!thread)
- error ("Can't run single thread id %d: no such thread!");
- inf_debug (inf, "running one thread: %d/%d", inf->pid, thread->tid);
- inf_set_threads_resume_sc (inf, thread, 0);
- }
-
- if (step)
- {
- step_thread = inf_tid_to_thread (inf, PIDGET (tid));
- if (!step_thread)
- warning ("Can't step thread id %d: no such thread.", PIDGET (tid));
- else
- inf_debug (inf, "stepping thread: %d/%d", inf->pid, step_thread->tid);
- }
- if (step_thread != inf->step_thread)
- inf_set_step_thread (inf, step_thread);
-
- inf_debug (inf, "here we go...");
- inf_resume (inf);
-}
-
-
-static void
-gnu_kill_inferior (void)
-{
- struct proc *task = current_inferior->task;
- if (task)
- {
- proc_debug (task, "terminating...");
- task_terminate (task->port);
- inf_set_pid (current_inferior, -1);
- }
- target_mourn_inferior ();
-}
-
-/* Clean up after the inferior dies. */
-static void
-gnu_mourn_inferior (void)
-{
- inf_debug (current_inferior, "rip");
- inf_detach (current_inferior);
- unpush_target (&gnu_ops);
- generic_mourn_inferior ();
-}
-
-
-/* Fork an inferior process, and start debugging it. */
-
-/* Set INFERIOR_PID to the first thread available in the child, if any. */
-static int
-inf_pick_first_thread (void)
-{
- if (current_inferior->task && current_inferior->threads)
- /* The first thread. */
- return current_inferior->threads->tid;
- else
- /* What may be the next thread. */
- return next_thread_id;
-}
-
-static struct inf *
-cur_inf (void)
-{
- if (!current_inferior)
- current_inferior = make_inf ();
- return current_inferior;
-}
-
-static void
-gnu_create_inferior (char *exec_file, char *allargs, char **env)
-{
- struct inf *inf = cur_inf ();
-
- void trace_me ()
- {
- /* We're in the child; make this process stop as soon as it execs. */
- inf_debug (inf, "tracing self");
- if (ptrace (PTRACE_TRACEME) != 0)
- error ("ptrace (PTRACE_TRACEME) failed!");
- }
- void attach_to_child (int pid)
- {
- /* Attach to the now stopped child, which is actually a shell... */
- inf_debug (inf, "attaching to child: %d", pid);
-
- inf_attach (inf, pid);
-
- attach_flag = 0;
- push_target (&gnu_ops);
-
- inf->pending_execs = 2;
- inf->nomsg = 1;
- inf->traced = 1;
-
- /* Now let the child run again, knowing that it will stop immediately
- because of the ptrace. */
- inf_resume (inf);
- inferior_ptid = pid_to_ptid (inf_pick_first_thread ());
-
- startup_inferior (inf->pending_execs);
- }
-
- inf_debug (inf, "creating inferior");
-
- fork_inferior (exec_file, allargs, env, trace_me, attach_to_child,
- NULL, NULL);
-
- inf_validate_procinfo (inf);
- inf_update_signal_thread (inf);
- inf_set_traced (inf, inf->want_signals);
-
- /* Execing the process will have trashed our exception ports; steal them
- back (or make sure they're restored if the user wants that). */
- if (inf->want_exceptions)
- inf_steal_exc_ports (inf);
- else
- inf_restore_exc_ports (inf);
-
- /* Here we go! */
- proceed ((CORE_ADDR) -1, 0, 0);
-}
-
-/* Mark our target-struct as eligible for stray "run" and "attach"
- commands. */
-static int
-gnu_can_run (void)
-{
- return 1;
-}
-
-
-#ifdef ATTACH_DETACH
-
-/* Attach to process PID, then initialize for debugging it
- and wait for the trace-trap that results from attaching. */
-static void
-gnu_attach (char *args, int from_tty)
-{
- int pid;
- char *exec_file;
- struct inf *inf = cur_inf ();
-
- if (!args)
- error_no_arg ("process-id to attach");
-
- pid = atoi (args);
-
- if (pid == getpid ()) /* Trying to masturbate? */
- error ("I refuse to debug myself!");
-
- if (from_tty)
- {
- exec_file = (char *) get_exec_file (0);
-
- if (exec_file)
- printf_unfiltered ("Attaching to program `%s', pid %d\n",
- exec_file, pid);
- else
- printf_unfiltered ("Attaching to pid %d\n", pid);
-
- gdb_flush (gdb_stdout);
- }
-
- inf_debug (inf, "attaching to pid: %d", pid);
-
- inf_attach (inf, pid);
- inf_update_procs (inf);
-
- inferior_ptid = pid_to_ptid (inf_pick_first_thread ());
-
- attach_flag = 1;
- push_target (&gnu_ops);
-
- /* We have to initialize the terminal settings now, since the code
- below might try to restore them. */
- target_terminal_init ();
-
- /* If the process was stopped before we attached, make it continue the next
- time the user does a continue. */
- inf_validate_procinfo (inf);
-
- inf_update_signal_thread (inf);
- inf_set_traced (inf, inf->want_signals);
-
-#if 0 /* Do we need this? */
- renumber_threads (0); /* Give our threads reasonable names. */
-#endif
-}
-
-
-/* Take a program previously attached to and detaches it.
- The program resumes execution and will no longer stop
- on signals, etc. We'd better not have left any breakpoints
- in the program or it'll die when it hits one. For this
- to work, it may be necessary for the process to have been
- previously attached. It *might* work if the program was
- started via fork. */
-static void
-gnu_detach (char *args, int from_tty)
-{
- if (from_tty)
- {
- char *exec_file = get_exec_file (0);
- if (exec_file)
- printf_unfiltered ("Detaching from program `%s' pid %d\n",
- exec_file, current_inferior->pid);
- else
- printf_unfiltered ("Detaching from pid %d\n", current_inferior->pid);
- gdb_flush (gdb_stdout);
- }
-
- inf_detach (current_inferior);
-
- inferior_ptid = null_ptid;
-
- unpush_target (&gnu_ops); /* Pop out of handling an inferior */
-}
-#endif /* ATTACH_DETACH */
-
-
-static void
-gnu_terminal_init_inferior (void)
-{
- gdb_assert (current_inferior);
- terminal_init_inferior_with_pgrp (current_inferior->pid);
-}
-
-/* Get ready to modify the registers array. On machines which store
- individual registers, this doesn't need to do anything. On machines
- which store all the registers in one fell swoop, this makes sure
- that registers contains all the registers from the program being
- debugged. */
-static void
-gnu_prepare_to_store (void)
-{
-#ifdef CHILD_PREPARE_TO_STORE
- CHILD_PREPARE_TO_STORE ();
-#endif
-}
-
-static void
-gnu_open (char *arg, int from_tty)
-{
- error ("Use the \"run\" command to start a Unix child process.");
-}
-
-static void
-gnu_stop (void)
-{
- error ("to_stop target function not implemented");
-}
-
-static char *
-gnu_pid_to_exec_file (int pid)
-{
- error ("to_pid_to_exec_file target function not implemented");
- return NULL;
-}
-
-
-static int
-gnu_thread_alive (ptid_t tid)
-{
- inf_update_procs (current_inferior);
- return !!inf_tid_to_thread (current_inferior, PIDGET (tid));
-}
-
-
-/* Read inferior task's LEN bytes from ADDR and copy it to MYADDR in
- gdb's address space. Return 0 on failure; number of bytes read
- otherwise. */
-int
-gnu_read_inferior (task_t task, CORE_ADDR addr, char *myaddr, int length)
-{
- error_t err;
- vm_address_t low_address = (vm_address_t) trunc_page (addr);
- vm_size_t aligned_length =
- (vm_size_t) round_page (addr + length) - low_address;
- pointer_t copied;
- int copy_count;
-
- /* Get memory from inferior with page aligned addresses */
- err = vm_read (task, low_address, aligned_length, &copied, &copy_count);
- if (err)
- return 0;
-
- err = hurd_safe_copyin (myaddr, (void *) addr - low_address + copied, length);
- if (err)
- {
- warning ("Read from inferior faulted: %s", safe_strerror (err));
- length = 0;
- }
-
- err = vm_deallocate (mach_task_self (), copied, copy_count);
- if (err)
- warning ("gnu_read_inferior vm_deallocate failed: %s", safe_strerror (err));
-
- return length;
-}
-
-#define CHK_GOTO_OUT(str,ret) \
- do if (ret != KERN_SUCCESS) { errstr = #str; goto out; } while(0)
-
-struct vm_region_list
-{
- struct vm_region_list *next;
- vm_prot_t protection;
- vm_address_t start;
- vm_size_t length;
-};
-
-struct obstack region_obstack;
-
-/* Write gdb's LEN bytes from MYADDR and copy it to ADDR in inferior
- task's address space. */
-int
-gnu_write_inferior (task_t task, CORE_ADDR addr, char *myaddr, int length)
-{
- error_t err = 0;
- vm_address_t low_address = (vm_address_t) trunc_page (addr);
- vm_size_t aligned_length =
- (vm_size_t) round_page (addr + length) - low_address;
- pointer_t copied;
- int copy_count;
- int deallocate = 0;
-
- char *errstr = "Bug in gnu_write_inferior";
-
- struct vm_region_list *region_element;
- struct vm_region_list *region_head = (struct vm_region_list *) NULL;
-
- /* Get memory from inferior with page aligned addresses */
- err = vm_read (task,
- low_address,
- aligned_length,
- &copied,
- &copy_count);
- CHK_GOTO_OUT ("gnu_write_inferior vm_read failed", err);
-
- deallocate++;
-
- err = hurd_safe_copyout ((void *) addr - low_address + copied,
- myaddr, length);
- CHK_GOTO_OUT ("Write to inferior faulted", err);
-
- obstack_init (&region_obstack);
-
- /* Do writes atomically.
- First check for holes and unwritable memory. */
- {
- vm_size_t remaining_length = aligned_length;
- vm_address_t region_address = low_address;
-
- struct vm_region_list *scan;
-
- while (region_address < low_address + aligned_length)
- {
- vm_prot_t protection;
- vm_prot_t max_protection;
- vm_inherit_t inheritance;
- boolean_t shared;
- mach_port_t object_name;
- vm_offset_t offset;
- vm_size_t region_length = remaining_length;
- vm_address_t old_address = region_address;
-
- err = vm_region (task,
- &region_address,
- &region_length,
- &protection,
- &max_protection,
- &inheritance,
- &shared,
- &object_name,
- &offset);
- CHK_GOTO_OUT ("vm_region failed", err);
-
- /* Check for holes in memory */
- if (old_address != region_address)
- {
- warning ("No memory at 0x%x. Nothing written",
- old_address);
- err = KERN_SUCCESS;
- length = 0;
- goto out;
- }
-
- if (!(max_protection & VM_PROT_WRITE))
- {
- warning ("Memory at address 0x%x is unwritable. Nothing written",
- old_address);
- err = KERN_SUCCESS;
- length = 0;
- goto out;
- }
-
- /* Chain the regions for later use */
- region_element =
- (struct vm_region_list *)
- obstack_alloc (&region_obstack, sizeof (struct vm_region_list));
-
- region_element->protection = protection;
- region_element->start = region_address;
- region_element->length = region_length;
-
- /* Chain the regions along with protections */
- region_element->next = region_head;
- region_head = region_element;
-
- region_address += region_length;
- remaining_length = remaining_length - region_length;
- }
-
- /* If things fail after this, we give up.
- Somebody is messing up inferior_task's mappings. */
-
- /* Enable writes to the chained vm regions */
- for (scan = region_head; scan; scan = scan->next)
- {
- if (!(scan->protection & VM_PROT_WRITE))
- {
- err = vm_protect (task,
- scan->start,
- scan->length,
- FALSE,
- scan->protection | VM_PROT_WRITE);
- CHK_GOTO_OUT ("vm_protect: enable write failed", err);
- }
- }
-
- err = vm_write (task,
- low_address,
- copied,
- aligned_length);
- CHK_GOTO_OUT ("vm_write failed", err);
-
- /* Set up the original region protections, if they were changed */
- for (scan = region_head; scan; scan = scan->next)
- {
- if (!(scan->protection & VM_PROT_WRITE))
- {
- err = vm_protect (task,
- scan->start,
- scan->length,
- FALSE,
- scan->protection);
- CHK_GOTO_OUT ("vm_protect: enable write failed", err);
- }
- }
- }
-
-out:
- if (deallocate)
- {
- obstack_free (&region_obstack, 0);
-
- (void) vm_deallocate (mach_task_self (),
- copied,
- copy_count);
- }
-
- if (err != KERN_SUCCESS)
- {
- warning ("%s: %s", errstr, mach_error_string (err));
- return 0;
- }
-
- return length;
-}
-
-
-/* Return 0 on failure, number of bytes handled otherwise. TARGET
- is ignored. */
-static int
-gnu_xfer_memory (CORE_ADDR memaddr, char *myaddr, int len, int write,
- struct mem_attrib *attrib,
- struct target_ops *target)
-{
- task_t task = (current_inferior
- ? (current_inferior->task
- ? current_inferior->task->port : 0)
- : 0);
-
- if (task == MACH_PORT_NULL)
- return 0;
- else
- {
- inf_debug (current_inferior, "%s %p[%d] %s %p",
- write ? "writing" : "reading", (void *) memaddr, len,
- write ? "<--" : "-->", myaddr);
- if (write)
- return gnu_write_inferior (task, memaddr, myaddr, len);
- else
- return gnu_read_inferior (task, memaddr, myaddr, len);
- }
-}
-
-/* Call FUNC on each memory region in the task. */
-static int
-gnu_find_memory_regions (int (*func) (CORE_ADDR,
- unsigned long,
- int, int, int,
- void *),
- void *data)
-{
- error_t err;
- task_t task;
- vm_address_t region_address, last_region_address, last_region_end;
- vm_prot_t last_protection;
-
- if (current_inferior == 0 || current_inferior->task == 0)
- return 0;
- task = current_inferior->task->port;
- if (task == MACH_PORT_NULL)
- return 0;
-
- region_address = last_region_address = last_region_end = VM_MIN_ADDRESS;
- last_protection = VM_PROT_NONE;
- while (region_address < VM_MAX_ADDRESS)
- {
- vm_prot_t protection;
- vm_prot_t max_protection;
- vm_inherit_t inheritance;
- boolean_t shared;
- mach_port_t object_name;
- vm_offset_t offset;
- vm_size_t region_length = VM_MAX_ADDRESS - region_address;
- vm_address_t old_address = region_address;
-
- err = vm_region (task,
- &region_address,
- &region_length,
- &protection,
- &max_protection,
- &inheritance,
- &shared,
- &object_name,
- &offset);
- if (err == KERN_NO_SPACE)
- break;
- if (err != KERN_SUCCESS)
- {
- warning ("vm_region failed: %s", mach_error_string (err));
- return -1;
- }
-
- if (protection == last_protection && region_address == last_region_end)
- /* This region is contiguous with and indistinguishable from
- the previous one, so we just extend that one. */
- last_region_end = region_address += region_length;
- else
- {
- /* This region is distinct from the last one we saw, so report
- that previous one. */
- if (last_protection != VM_PROT_NONE)
- (*func) (last_region_address,
- last_region_end - last_region_address,
- last_protection & VM_PROT_READ,
- last_protection & VM_PROT_WRITE,
- last_protection & VM_PROT_EXECUTE,
- data);
- last_region_address = region_address;
- last_region_end = region_address += region_length;
- last_protection = protection;
- }
- }
-
- /* Report the final region. */
- if (last_region_end > last_region_address && last_protection != VM_PROT_NONE)
- (*func) (last_region_address, last_region_end - last_region_address,
- last_protection & VM_PROT_READ,
- last_protection & VM_PROT_WRITE,
- last_protection & VM_PROT_EXECUTE,
- data);
-
- return 0;
-}
-
-
-/* Return printable description of proc. */
-char *
-proc_string (struct proc *proc)
-{
- static char tid_str[80];
- if (proc_is_task (proc))
- sprintf (tid_str, "process %d", proc->inf->pid);
- else
- sprintf (tid_str, "thread %d.%d",
- proc->inf->pid, pid_to_thread_id (MERGEPID (proc->tid, 0)));
- return tid_str;
-}
-
-static char *
-gnu_pid_to_str (ptid_t ptid)
-{
- struct inf *inf = current_inferior;
- int tid = PIDGET (ptid);
- struct proc *thread = inf_tid_to_thread (inf, tid);
-
- if (thread)
- return proc_string (thread);
- else
- {
- static char tid_str[80];
- sprintf (tid_str, "bogus thread id %d", tid);
- return tid_str;
- }
-}
-
-
-extern void gnu_store_registers (int regno);
-extern void gnu_fetch_registers (int regno);
-
-struct target_ops gnu_ops;
-
-static void
-init_gnu_ops (void)
-{
- gnu_ops.to_shortname = "GNU"; /* to_shortname */
- gnu_ops.to_longname = "GNU Hurd process"; /* to_longname */
- gnu_ops.to_doc = "GNU Hurd process"; /* to_doc */
- gnu_ops.to_open = gnu_open; /* to_open */
- gnu_ops.to_close = 0; /* to_close */
- gnu_ops.to_attach = gnu_attach; /* to_attach */
- gnu_ops.to_post_attach = NULL;
- gnu_ops.to_require_attach = NULL; /* to_require_attach */
- gnu_ops.to_detach = gnu_detach; /* to_detach */
- gnu_ops.to_require_detach = NULL; /* to_require_detach */
- gnu_ops.to_resume = gnu_resume; /* to_resume */
- gnu_ops.to_wait = gnu_wait; /* to_wait */
- gnu_ops.to_post_wait = NULL; /* to_post_wait */
- gnu_ops.to_fetch_registers = gnu_fetch_registers; /* to_fetch_registers */
- gnu_ops.to_store_registers = gnu_store_registers; /* to_store_registers */
- gnu_ops.to_prepare_to_store = gnu_prepare_to_store; /* to_prepare_to_store */
- gnu_ops.to_xfer_memory = gnu_xfer_memory; /* to_xfer_memory */
- gnu_ops.to_find_memory_regions = gnu_find_memory_regions;
- gnu_ops.to_files_info = 0; /* to_files_info */
- gnu_ops.to_insert_breakpoint = memory_insert_breakpoint;
- gnu_ops.to_remove_breakpoint = memory_remove_breakpoint;
- gnu_ops.to_terminal_init = gnu_terminal_init_inferior;
- gnu_ops.to_terminal_inferior = terminal_inferior;
- gnu_ops.to_terminal_ours_for_output = terminal_ours_for_output;
- gnu_ops.to_terminal_ours = terminal_ours;
- gnu_ops.to_terminal_info = child_terminal_info;
- gnu_ops.to_kill = gnu_kill_inferior; /* to_kill */
- gnu_ops.to_load = 0; /* to_load */
- gnu_ops.to_lookup_symbol = 0; /* to_lookup_symbol */
- gnu_ops.to_create_inferior = gnu_create_inferior; /* to_create_inferior */
- gnu_ops.to_post_startup_inferior = NULL; /* to_post_startup_inferior */
- /* to_acknowledge_created_inferior */
- gnu_ops.to_acknowledge_created_inferior = NULL;
- /* to_clone_and_follow_inferior */
- gnu_ops.to_clone_and_follow_inferior = NULL;
- /* to_post_follow_inferior_by_clone */
- gnu_ops.to_post_follow_inferior_by_clone = NULL;
- gnu_ops.to_insert_fork_catchpoint = NULL;
- gnu_ops.to_remove_fork_catchpoint = NULL;
- gnu_ops.to_insert_vfork_catchpoint = NULL;
- gnu_ops.to_remove_vfork_catchpoint = NULL;
- gnu_ops.to_has_forked = NULL; /* to_has_forked */
- gnu_ops.to_has_vforked = NULL; /* to_has_vforked */
- gnu_ops.to_can_follow_vfork_prior_to_exec = NULL;
- gnu_ops.to_post_follow_vfork = NULL; /* to_post_follow_vfork */
- gnu_ops.to_insert_exec_catchpoint = NULL;
- gnu_ops.to_remove_exec_catchpoint = NULL;
- gnu_ops.to_has_execd = NULL;
- gnu_ops.to_reported_exec_events_per_exec_call = NULL;
- gnu_ops.to_has_exited = NULL;
- gnu_ops.to_mourn_inferior = gnu_mourn_inferior; /* to_mourn_inferior */
- gnu_ops.to_can_run = gnu_can_run; /* to_can_run */
- gnu_ops.to_notice_signals = 0; /* to_notice_signals */
- gnu_ops.to_thread_alive = gnu_thread_alive; /* to_thread_alive */
- gnu_ops.to_pid_to_str = gnu_pid_to_str; /* to_pid_to_str */
- gnu_ops.to_stop = gnu_stop; /* to_stop */
- gnu_ops.to_pid_to_exec_file = gnu_pid_to_exec_file; /* to_pid_to_exec_file */
- gnu_ops.to_stratum = process_stratum; /* to_stratum */
- gnu_ops.DONT_USE = 0; /* to_next */
- gnu_ops.to_has_all_memory = 1; /* to_has_all_memory */
- gnu_ops.to_has_memory = 1; /* to_has_memory */
- gnu_ops.to_has_stack = 1; /* to_has_stack */
- gnu_ops.to_has_registers = 1; /* to_has_registers */
- gnu_ops.to_has_execution = 1; /* to_has_execution */
- gnu_ops.to_sections = 0; /* sections */
- gnu_ops.to_sections_end = 0; /* sections_end */
- gnu_ops.to_magic = OPS_MAGIC; /* to_magic */
-} /* init_gnu_ops */
-
-
-/* User task commands. */
-
-struct cmd_list_element *set_task_cmd_list = 0;
-struct cmd_list_element *show_task_cmd_list = 0;
-/* User thread commands. */
-
-/* Commands with a prefix of `set/show thread'. */
-extern struct cmd_list_element *thread_cmd_list;
-struct cmd_list_element *set_thread_cmd_list = NULL;
-struct cmd_list_element *show_thread_cmd_list = NULL;
-
-/* Commands with a prefix of `set/show thread default'. */
-struct cmd_list_element *set_thread_default_cmd_list = NULL;
-struct cmd_list_element *show_thread_default_cmd_list = NULL;
-
-static void
-set_thread_cmd (char *args, int from_tty)
-{
- printf_unfiltered ("\"set thread\" must be followed by the name of a thread property, or \"default\".\n");
-}
-
-static void
-show_thread_cmd (char *args, int from_tty)
-{
- printf_unfiltered ("\"show thread\" must be followed by the name of a thread property, or \"default\".\n");
-}
-
-static void
-set_thread_default_cmd (char *args, int from_tty)
-{
- printf_unfiltered ("\"set thread default\" must be followed by the name of a thread property.\n");
-}
-
-static void
-show_thread_default_cmd (char *args, int from_tty)
-{
- printf_unfiltered ("\"show thread default\" must be followed by the name of a thread property.\n");
-}
-
-static int
-parse_int_arg (char *args, char *cmd_prefix)
-{
- if (args)
- {
- char *arg_end;
- int val = strtoul (args, &arg_end, 10);
- if (*args && *arg_end == '\0')
- return val;
- }
- error ("Illegal argument for \"%s\" command, should be an integer.", cmd_prefix);
-}
-
-static int
-_parse_bool_arg (char *args, char *t_val, char *f_val, char *cmd_prefix)
-{
- if (!args || strcmp (args, t_val) == 0)
- return 1;
- else if (strcmp (args, f_val) == 0)
- return 0;
- else
- error ("Illegal argument for \"%s\" command, should be \"%s\" or \"%s\".",
- cmd_prefix, t_val, f_val);
-}
-
-#define parse_bool_arg(args, cmd_prefix) \
- _parse_bool_arg (args, "on", "off", cmd_prefix)
-
-static void
-check_empty (char *args, char *cmd_prefix)
-{
- if (args)
- error ("Garbage after \"%s\" command: `%s'", cmd_prefix, args);
-}
-
-/* Returns the alive thread named by INFERIOR_PID, or signals an error. */
-static struct proc *
-cur_thread (void)
-{
- struct inf *inf = cur_inf ();
- struct proc *thread = inf_tid_to_thread (inf, PIDGET (inferior_ptid));
- if (!thread)
- error ("No current thread.");
- return thread;
-}
-
-/* Returns the current inferior, but signals an error if it has no task. */
-static struct inf *
-active_inf (void)
-{
- struct inf *inf = cur_inf ();
- if (!inf->task)
- error ("No current process.");
- return inf;
-}
-
-
-static void
-set_task_pause_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
- int old_sc = inf->pause_sc;
-
- inf->pause_sc = parse_bool_arg (args, "set task pause");
-
- if (old_sc == 0 && inf->pause_sc != 0)
- /* If the task is currently unsuspended, immediately suspend it,
- otherwise wait until the next time it gets control. */
- inf_suspend (inf);
-}
-
-static void
-show_task_pause_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
- check_empty (args, "show task pause");
- printf_unfiltered ("The inferior task %s suspended while gdb has control.\n",
- inf->task
- ? (inf->pause_sc == 0 ? "isn't" : "is")
- : (inf->pause_sc == 0 ? "won't be" : "will be"));
-}
-
-static void
-set_task_detach_sc_cmd (char *args, int from_tty)
-{
- cur_inf ()->detach_sc = parse_int_arg (args, "set task detach-suspend-count");
-}
-
-static void
-show_task_detach_sc_cmd (char *args, int from_tty)
-{
- check_empty (args, "show task detach-suspend-count");
- printf_unfiltered ("The inferior task will be left with a suspend count of %d when detaching.\n",
- cur_inf ()->detach_sc);
-}
-
-
-static void
-set_thread_default_pause_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
- inf->default_thread_pause_sc =
- parse_bool_arg (args, "set thread default pause") ? 0 : 1;
-}
-
-static void
-show_thread_default_pause_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
- int sc = inf->default_thread_pause_sc;
- check_empty (args, "show thread default pause");
- printf_unfiltered ("New threads %s suspended while gdb has control%s.\n",
- sc ? "are" : "aren't",
- !sc && inf->pause_sc ? " (but the task is)" : "");
-}
-
-static void
-set_thread_default_run_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
- inf->default_thread_run_sc =
- parse_bool_arg (args, "set thread default run") ? 0 : 1;
-}
-
-static void
-show_thread_default_run_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
- check_empty (args, "show thread default run");
- printf_unfiltered ("New threads %s allowed to run.\n",
- inf->default_thread_run_sc == 0 ? "are" : "aren't");
-}
-
-static void
-set_thread_default_detach_sc_cmd (char *args, int from_tty)
-{
- cur_inf ()->default_thread_detach_sc =
- parse_int_arg (args, "set thread default detach-suspend-count");
-}
-
-static void
-show_thread_default_detach_sc_cmd (char *args, int from_tty)
-{
- check_empty (args, "show thread default detach-suspend-count");
- printf_unfiltered ("New threads will get a detach-suspend-count of %d.\n",
- cur_inf ()->default_thread_detach_sc);
-}
-
-
-/* Steal a send right called NAME in the inferior task, and make it PROC's
- saved exception port. */
-static void
-steal_exc_port (struct proc *proc, mach_port_t name)
-{
- error_t err;
- mach_port_t port;
- mach_msg_type_name_t port_type;
-
- if (!proc || !proc->inf->task)
- error ("No inferior task.");
-
- err = mach_port_extract_right (proc->inf->task->port,
- name, MACH_MSG_TYPE_COPY_SEND,
- &port, &port_type);
- if (err)
- error ("Couldn't extract send right %d from inferior: %s",
- name, safe_strerror (err));
-
- if (proc->saved_exc_port)
- /* Get rid of our reference to the old one. */
- mach_port_deallocate (mach_task_self (), proc->saved_exc_port);
-
- proc->saved_exc_port = port;
-
- if (!proc->exc_port)
- /* If PROC is a thread, we may not have set its exception port before.
- We can't use proc_steal_exc_port because it also sets saved_exc_port. */
- {
- proc->exc_port = proc->inf->event_port;
- err = proc_set_exception_port (proc, proc->exc_port);
- error ("Can't set exception port for %s: %s",
- proc_string (proc), safe_strerror (err));
- }
-}
-
-static void
-set_task_exc_port_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
- if (!args)
- error ("No argument to \"set task exception-port\" command.");
- steal_exc_port (inf->task, parse_and_eval_address (args));
-}
-
-static void
-set_stopped_cmd (char *args, int from_tty)
-{
- cur_inf ()->stopped = _parse_bool_arg (args, "yes", "no", "set stopped");
-}
-
-static void
-show_stopped_cmd (char *args, int from_tty)
-{
- struct inf *inf = active_inf ();
- check_empty (args, "show stopped");
- printf_unfiltered ("The inferior process %s stopped.\n",
- inf->stopped ? "is" : "isn't");
-}
-
-static void
-set_sig_thread_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
-
- if (!args || (!isdigit (*args) && strcmp (args, "none") != 0))
- error ("Illegal argument to \"set signal-thread\" command.\n"
- "Should be an integer thread ID, or `none'.");
-
- if (strcmp (args, "none") == 0)
- inf->signal_thread = 0;
- else
- {
- int tid = PIDGET (thread_id_to_pid (atoi (args)));
- if (tid < 0)
- error ("Thread ID %s not known. Use the \"info threads\" command to\n"
- "see the IDs of currently known threads.", args);
- inf->signal_thread = inf_tid_to_thread (inf, tid);
- }
-}
-
-static void
-show_sig_thread_cmd (char *args, int from_tty)
-{
- struct inf *inf = active_inf ();
- check_empty (args, "show signal-thread");
- if (inf->signal_thread)
- printf_unfiltered ("The signal thread is %s.\n",
- proc_string (inf->signal_thread));
- else
- printf_unfiltered ("There is no signal thread.\n");
-}
-
-
-static void
-set_signals_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
-
- inf->want_signals = parse_bool_arg (args, "set signals");
-
- if (inf->task && inf->want_signals != inf->traced)
- /* Make this take effect immediately in a running process. */
- inf_set_traced (inf, inf->want_signals);
-}
-
-static void
-show_signals_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
- check_empty (args, "show signals");
- printf_unfiltered ("The inferior process's signals %s intercepted.\n",
- inf->task
- ? (inf->traced ? "are" : "aren't")
- : (inf->want_signals ? "will be" : "won't be"));
-}
-
-static void
-set_exceptions_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
- int val = parse_bool_arg (args, "set exceptions");
-
- if (inf->task && inf->want_exceptions != val)
- /* Make this take effect immediately in a running process. */
- /* XXX */ ;
-
- inf->want_exceptions = val;
-}
-
-static void
-show_exceptions_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
- check_empty (args, "show exceptions");
- printf_unfiltered ("Exceptions in the inferior %s trapped.\n",
- inf->task
- ? (inf->want_exceptions ? "are" : "aren't")
- : (inf->want_exceptions ? "will be" : "won't be"));
-}
-
-
-static void
-set_task_cmd (char *args, int from_tty)
-{
- printf_unfiltered ("\"set task\" must be followed by the name"
- " of a task property.\n");
-}
-
-static void
-show_task_cmd (char *args, int from_tty)
-{
- struct inf *inf = cur_inf ();
-
- check_empty (args, "show task");
-
- show_signals_cmd (0, from_tty);
- show_exceptions_cmd (0, from_tty);
- show_task_pause_cmd (0, from_tty);
-
- if (inf->pause_sc == 0)
- show_thread_default_pause_cmd (0, from_tty);
- show_thread_default_run_cmd (0, from_tty);
-
- if (inf->task)
- {
- show_stopped_cmd (0, from_tty);
- show_sig_thread_cmd (0, from_tty);
- }
-
- if (inf->detach_sc != 0)
- show_task_detach_sc_cmd (0, from_tty);
- if (inf->default_thread_detach_sc != 0)
- show_thread_default_detach_sc_cmd (0, from_tty);
-}
-
-
-static void
-set_noninvasive_cmd (char *args, int from_tty)
-{
- /* Invert the sense of the arg for each component. */
- char *inv_args = parse_bool_arg (args, "set noninvasive") ? "off" : "on";
-
- set_task_pause_cmd (inv_args, from_tty);
- set_signals_cmd (inv_args, from_tty);
- set_exceptions_cmd (inv_args, from_tty);
-}
-
-
-static void
-info_port_rights (char *args, mach_port_type_t only)
-{
- struct inf *inf = active_inf ();
- struct value *vmark = value_mark ();
-
- if (args)
- /* Explicit list of port rights. */
- {
- while (*args)
- {
- struct value *val = parse_to_comma_and_eval (&args);
- long right = value_as_long (val);
- error_t err =
- print_port_info (right, 0, inf->task->port, PORTINFO_DETAILS,
- stdout);
- if (err)
- error ("%ld: %s.", right, safe_strerror (err));
- }
- }
- else
- /* Print all of them. */
- {
- error_t err =
- print_task_ports_info (inf->task->port, only, PORTINFO_DETAILS,
- stdout);
- if (err)
- error ("%s.", safe_strerror (err));
- }
-
- value_free_to_mark (vmark);
-}
-
-static void
-info_send_rights_cmd (char *args, int from_tty)
-{
- info_port_rights (args, MACH_PORT_TYPE_SEND);
-}
-
-static void
-info_recv_rights_cmd (char *args, int from_tty)
-{
- info_port_rights (args, MACH_PORT_TYPE_RECEIVE);
-}
-
-static void
-info_port_sets_cmd (char *args, int from_tty)
-{
- info_port_rights (args, MACH_PORT_TYPE_PORT_SET);
-}
-
-static void
-info_dead_names_cmd (char *args, int from_tty)
-{
- info_port_rights (args, MACH_PORT_TYPE_DEAD_NAME);
-}
-
-static void
-info_port_rights_cmd (char *args, int from_tty)
-{
- info_port_rights (args, ~0);
-}
-
-
-static void
-add_task_commands (void)
-{
- add_cmd ("pause", class_run, set_thread_default_pause_cmd,
- "Set whether the new threads are suspended while gdb has control.\n\
-This property normally has no effect because the whole task is\n\
-suspended, however, that may be disabled with \"set task pause off\".\n\
-The default value is \"off\".",
- &set_thread_default_cmd_list);
- add_cmd ("pause", no_class, show_thread_default_pause_cmd,
- "Show whether new threads are suspended while gdb has control.",
- &show_thread_default_cmd_list);
-
- add_cmd ("run", class_run, set_thread_default_run_cmd,
- "Set whether new threads are allowed to run \
-(once gdb has noticed them).",
- &set_thread_default_cmd_list);
- add_cmd ("run", no_class, show_thread_default_run_cmd,
- "Show whether new threads are allowed to run \
-(once gdb has noticed them).",
- &show_thread_default_cmd_list);
-
- add_cmd ("detach-suspend-count", class_run, set_thread_default_detach_sc_cmd,
- "Set the default detach-suspend-count value for new threads.",
- &set_thread_default_cmd_list);
- add_cmd ("detach-suspend-count", no_class, show_thread_default_detach_sc_cmd,
- "Show the default detach-suspend-count value for new threads.",
- &show_thread_default_cmd_list);
-
- add_cmd ("signals", class_run, set_signals_cmd,
- "Set whether the inferior process's signals will be intercepted.\n\
-Mach exceptions (such as breakpoint traps) are not affected.",
- &setlist);
- add_alias_cmd ("sigs", "signals", class_run, 1, &setlist);
- add_cmd ("signals", no_class, show_signals_cmd,
- "Show whether the inferior process's signals will be intercepted.",
- &showlist);
- add_alias_cmd ("sigs", "signals", no_class, 1, &showlist);
-
- add_cmd ("signal-thread", class_run, set_sig_thread_cmd,
- "Set the thread that gdb thinks is the libc signal thread.\n\
-This thread is run when delivering a signal to a non-stopped process.",
- &setlist);
- add_alias_cmd ("sigthread", "signal-thread", class_run, 1, &setlist);
- add_cmd ("signal-thread", no_class, show_sig_thread_cmd,
- "Set the thread that gdb thinks is the libc signal thread.",
- &showlist);
- add_alias_cmd ("sigthread", "signal-thread", no_class, 1, &showlist);
-
- add_cmd ("stopped", class_run, set_stopped_cmd,
- "Set whether gdb thinks the inferior process is stopped \
-as with SIGSTOP.\n\
-Stopped process will be continued by sending them a signal.",
- &setlist);
- add_cmd ("stopped", no_class, show_signals_cmd,
- "Show whether gdb thinks the inferior process is stopped \
-as with SIGSTOP.",
- &showlist);
-
- add_cmd ("exceptions", class_run, set_exceptions_cmd,
- "Set whether exceptions in the inferior process will be trapped.\n\
-When exceptions are turned off, neither breakpoints nor single-stepping\n\
-will work.",
- &setlist);
- /* Allow `set exc' despite conflict with `set exception-port'. */
- add_alias_cmd ("exc", "exceptions", class_run, 1, &setlist);
- add_cmd ("exceptions", no_class, show_exceptions_cmd,
- "Show whether exceptions in the inferior process will be trapped.",
- &showlist);
-
- add_prefix_cmd ("task", no_class, set_task_cmd,
- "Command prefix for setting task attributes.",
- &set_task_cmd_list, "set task ", 0, &setlist);
- add_prefix_cmd ("task", no_class, show_task_cmd,
- "Command prefix for showing task attributes.",
- &show_task_cmd_list, "show task ", 0, &showlist);
-
- add_cmd ("pause", class_run, set_task_pause_cmd,
- "Set whether the task is suspended while gdb has control.\n\
-A value of \"on\" takes effect immediately, otherwise nothing happens\n\
-until the next time the program is continued.\n\
-When setting this to \"off\", \"set thread default pause on\" can be\n\
-used to pause individual threads by default instead.",
- &set_task_cmd_list);
- add_cmd ("pause", no_class, show_task_pause_cmd,
- "Show whether the task is suspended while gdb has control.",
- &show_task_cmd_list);
-
- add_cmd ("detach-suspend-count", class_run, set_task_detach_sc_cmd,
- "Set the suspend count will leave on the thread when detaching.",
- &set_task_cmd_list);
- add_cmd ("detach-suspend-count", no_class, show_task_detach_sc_cmd,
- "Show the suspend count will leave on the thread when detaching.",
- &show_task_cmd_list);
-
- add_cmd ("exception-port", no_class, set_task_exc_port_cmd,
- "Set the task exception port to which we forward exceptions.\n\
-The argument should be the value of the send right in the task.",
- &set_task_cmd_list);
- add_alias_cmd ("excp", "exception-port", no_class, 1, &set_task_cmd_list);
- add_alias_cmd ("exc-port", "exception-port", no_class, 1,
- &set_task_cmd_list);
-
- /* A convenient way of turning on all options require to noninvasively
- debug running tasks. */
- add_cmd ("noninvasive", no_class, set_noninvasive_cmd,
- "Set task options so that we interfere as little as possible.\n\
-This is the same as setting `task pause', `exceptions', and\n\
-`signals' to the opposite value.",
- &setlist);
-
- /* Commands to show information about the task's ports. */
- add_cmd ("send-rights", class_info, info_send_rights_cmd,
- "Show information about the task's send rights",
- &infolist);
- add_cmd ("receive-rights", class_info, info_recv_rights_cmd,
- "Show information about the task's receive rights",
- &infolist);
- add_cmd ("port-rights", class_info, info_port_rights_cmd,
- "Show information about the task's port rights",
- &infolist);
- add_cmd ("port-sets", class_info, info_port_sets_cmd,
- "Show information about the task's port sets",
- &infolist);
- add_cmd ("dead-names", class_info, info_dead_names_cmd,
- "Show information about the task's dead names",
- &infolist);
- add_info_alias ("ports", "port-rights", 1);
- add_info_alias ("port", "port-rights", 1);
- add_info_alias ("psets", "port-sets", 1);
-}
-
-
-static void
-set_thread_pause_cmd (char *args, int from_tty)
-{
- struct proc *thread = cur_thread ();
- int old_sc = thread->pause_sc;
- thread->pause_sc = parse_bool_arg (args, "set thread pause");
- if (old_sc == 0 && thread->pause_sc != 0 && thread->inf->pause_sc == 0)
- /* If the task is currently unsuspended, immediately suspend it,
- otherwise wait until the next time it gets control. */
- inf_suspend (thread->inf);
-}
-
-static void
-show_thread_pause_cmd (char *args, int from_tty)
-{
- struct proc *thread = cur_thread ();
- int sc = thread->pause_sc;
- check_empty (args, "show task pause");
- printf_unfiltered ("Thread %s %s suspended while gdb has control%s.\n",
- proc_string (thread),
- sc ? "is" : "isn't",
- !sc && thread->inf->pause_sc ? " (but the task is)" : "");
-}
-
-static void
-set_thread_run_cmd (char *args, int from_tty)
-{
- struct proc *thread = cur_thread ();
- thread->run_sc = parse_bool_arg (args, "set thread run") ? 0 : 1;
-}
-
-static void
-show_thread_run_cmd (char *args, int from_tty)
-{
- struct proc *thread = cur_thread ();
- check_empty (args, "show thread run");
- printf_unfiltered ("Thread %s %s allowed to run.",
- proc_string (thread),
- thread->run_sc == 0 ? "is" : "isn't");
-}
-
-static void
-set_thread_detach_sc_cmd (char *args, int from_tty)
-{
- cur_thread ()->detach_sc = parse_int_arg (args,
- "set thread detach-suspend-count");
-}
-
-static void
-show_thread_detach_sc_cmd (char *args, int from_tty)
-{
- struct proc *thread = cur_thread ();
- check_empty (args, "show thread detach-suspend-count");
- printf_unfiltered ("Thread %s will be left with a suspend count"
- " of %d when detaching.\n",
- proc_string (thread),
- thread->detach_sc);
-}
-
-static void
-set_thread_exc_port_cmd (char *args, int from_tty)
-{
- struct proc *thread = cur_thread ();
- if (!args)
- error ("No argument to \"set thread exception-port\" command.");
- steal_exc_port (thread, parse_and_eval_address (args));
-}
-
-#if 0
-static void
-show_thread_cmd (char *args, int from_tty)
-{
- struct proc *thread = cur_thread ();
- check_empty (args, "show thread");
- show_thread_run_cmd (0, from_tty);
- show_thread_pause_cmd (0, from_tty);
- if (thread->detach_sc != 0)
- show_thread_detach_sc_cmd (0, from_tty);
-}
-#endif
-
-static void
-thread_takeover_sc_cmd (char *args, int from_tty)
-{
- struct proc *thread = cur_thread ();
- thread_basic_info_data_t _info;
- thread_basic_info_t info = &_info;
- mach_msg_type_number_t info_len = THREAD_BASIC_INFO_COUNT;
- error_t err =
- thread_info (thread->port, THREAD_BASIC_INFO, (int *) &info, &info_len);
- if (err)
- error ("%s.", safe_strerror (err));
- thread->sc = info->suspend_count;
- if (from_tty)
- printf_unfiltered ("Suspend count was %d.\n", thread->sc);
- if (info != &_info)
- vm_deallocate (mach_task_self (), (vm_address_t) info,
- info_len * sizeof (int));
-}
-
-
-static void
-add_thread_commands (void)
-{
- add_prefix_cmd ("thread", no_class, set_thread_cmd,
- "Command prefix for setting thread properties.",
- &set_thread_cmd_list, "set thread ", 0, &setlist);
- add_prefix_cmd ("default", no_class, show_thread_cmd,
- "Command prefix for setting default thread properties.",
- &set_thread_default_cmd_list, "set thread default ", 0,
- &set_thread_cmd_list);
- add_prefix_cmd ("thread", no_class, set_thread_default_cmd,
- "Command prefix for showing thread properties.",
- &show_thread_cmd_list, "show thread ", 0, &showlist);
- add_prefix_cmd ("default", no_class, show_thread_default_cmd,
- "Command prefix for showing default thread properties.",
- &show_thread_default_cmd_list, "show thread default ", 0,
- &show_thread_cmd_list);
-
- add_cmd ("pause", class_run, set_thread_pause_cmd,
- "Set whether the current thread is suspended \
-while gdb has control.\n\
-A value of \"on\" takes effect immediately, otherwise nothing happens\n\
-until the next time the program is continued. This property normally\n\
-has no effect because the whole task is suspended, however, that may\n\
-be disabled with \"set task pause off\".\n\
-The default value is \"off\".",
- &set_thread_cmd_list);
- add_cmd ("pause", no_class, show_thread_pause_cmd,
- "Show whether the current thread is suspended \
-while gdb has control.",
- &show_thread_cmd_list);
-
- add_cmd ("run", class_run, set_thread_run_cmd,
- "Set whether the current thread is allowed to run.",
- &set_thread_cmd_list);
- add_cmd ("run", no_class, show_thread_run_cmd,
- "Show whether the current thread is allowed to run.",
- &show_thread_cmd_list);
-
- add_cmd ("detach-suspend-count", class_run, set_thread_detach_sc_cmd,
- "Set the suspend count will leave on the thread when detaching.\n\
-Note that this is relative to suspend count when gdb noticed the thread;\n\
-use the `thread takeover-suspend-count' to force it to an absolute value.",
- &set_thread_cmd_list);
- add_cmd ("detach-suspend-count", no_class, show_thread_detach_sc_cmd,
- "Show the suspend count will leave on the thread when detaching.\n\
-Note that this is relative to suspend count when gdb noticed the thread;\n\
-use the `thread takeover-suspend-count' to force it to an absolute value.",
- &show_thread_cmd_list);
-
- add_cmd ("exception-port", no_class, set_thread_exc_port_cmd,
- "Set the thread exception port to which we forward exceptions.\n\
-This overrides the task exception port.\n\
-The argument should be the value of the send right in the task.",
- &set_thread_cmd_list);
- add_alias_cmd ("excp", "exception-port", no_class, 1, &set_thread_cmd_list);
- add_alias_cmd ("exc-port", "exception-port", no_class, 1,
- &set_thread_cmd_list);
-
- add_cmd ("takeover-suspend-count", no_class, thread_takeover_sc_cmd,
- "Force the threads absolute suspend-count to be gdb's.\n\
-Prior to giving this command, gdb's thread suspend-counts are relative\n\
-to the thread's initial suspend-count when gdb notices the threads.",
- &thread_cmd_list);
-}
-
-
-void
-_initialize_gnu_nat (void)
-{
- proc_server = getproc ();
-
- init_gnu_ops ();
- add_target (&gnu_ops);
-
- add_task_commands ();
- add_thread_commands ();
- add_set_cmd ("gnu-debug", class_maintenance,
- var_boolean, (char *) &gnu_debug_flag,
- "Set debugging output for the gnu backend.", &maintenancelist);
-}
-
-#ifdef FLUSH_INFERIOR_CACHE
-
-/* When over-writing code on some machines the I-Cache must be flushed
- explicitly, because it is not kept coherent by the lazy hardware.
- This definitely includes breakpoints, for instance, or else we
- end up looping in mysterious Bpt traps */
-
-void
-flush_inferior_icache (CORE_ADDR pc, int amount)
-{
- vm_machine_attribute_val_t flush = MATTR_VAL_ICACHE_FLUSH;
- error_t ret;
-
- ret = vm_machine_attribute (current_inferior->task->port,
- pc,
- amount,
- MATTR_CACHE,
- &flush);
- if (ret != KERN_SUCCESS)
- warning ("Error flushing inferior's cache : %s", safe_strerror (ret));
-}
-#endif /* FLUSH_INFERIOR_CACHE */