gdbserver: remove support for ARM/WinCE
This port has been unmaintained for years, remove it. gdbserver/ChangeLog: * Makefile.in (SFILES): Remove win32-arm-low.cc, wincecompat.cc. * configure.srv: Remove mingw32ce cases. * server.h, win32-low.cc: Remove __MINGW32CE__-guarded code. * win32-low.h (to_back_slashes): Remove. * win32-arm-low.cc, wincecompat.cc, wincecompat.h: Remove. Change-Id: Ib75c0b55b0ab7caca38bbeff5f2fa9397a8e7e8d
This commit is contained in:
Simon Marchi
parent
96c16e2b7f
commit
84b300de36
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@ -1,3 +1,11 @@
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2020-06-12 Simon Marchi <simon.marchi@efficios.com>
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* Makefile.in (SFILES): Remove win32-arm-low.cc, wincecompat.cc.
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* configure.srv: Remove mingw32ce cases.
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* server.h, win32-low.cc: Remove __MINGW32CE__-guarded code.
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* win32-low.h (to_back_slashes): Remove.
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* win32-arm-low.cc, wincecompat.cc, wincecompat.h: Remove.
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2020-06-12 Simon Marchi <simon.marchi@efficios.com>
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* Makefile.in (SFILES): linux-tile-low.cc.
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@ -202,10 +202,8 @@ SFILES = \
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$(srcdir)/target.cc \
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$(srcdir)/thread-db.cc \
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$(srcdir)/utils.cc \
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$(srcdir)/win32-arm-low.cc \
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$(srcdir)/win32-i386-low.cc \
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$(srcdir)/win32-low.cc \
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$(srcdir)/wincecompat.cc \
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$(srcdir)/x86-low.cc \
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$(srcdir)/../gdb/alloc.c \
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$(srcdir)/../gdb/arch/arm.c \
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@ -73,14 +73,6 @@ case "${gdbserver_host}" in
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srv_linux_regsets=yes
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srv_linux_thread_db=yes
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;;
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arm*-*-mingw32ce*) srv_regobj=reg-arm.o
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srv_tgtobj="win32-low.o windows-nat.o win32-arm-low.o"
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srv_tgtobj="${srv_tgtobj} wincecompat.o"
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# hostio_last_error implementation is in win32-low.c
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srv_hostio_err_objs=""
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srv_mingw=yes
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srv_mingwce=yes
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;;
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i[34567]86-*-cygwin*) srv_regobj=""
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srv_tgtobj="x86-low.o nat/x86-dregs.o win32-low.o"
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srv_tgtobj="${srv_tgtobj} win32-i386-low.o"
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@ -102,18 +94,6 @@ case "${gdbserver_host}" in
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ipa_obj="linux-i386-ipa.o linux-x86-tdesc-ipa.o"
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ipa_obj="${ipa_obj} arch/i386-ipa.o"
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;;
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i[34567]86-*-mingw32ce*)
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srv_regobj=""
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srv_tgtobj="x86-low.o nat/x86-dregs.o win32-low.o"
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srv_tgtobj="${srv_tgtobj} win32-i386-low.o"
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srv_tgtobj="${srv_tgtobj} nat/windows-nat.o"
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srv_tgtobj="${srv_tgtobj} arch/i386.o"
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srv_tgtobj="${srv_tgtobj} wincecompat.o"
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# hostio_last_error implementation is in win32-low.c
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srv_hostio_err_objs=""
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srv_mingw=yes
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srv_mingwce=yes
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;;
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i[34567]86-*-mingw*) srv_regobj=""
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srv_tgtobj="x86-low.o nat/x86-dregs.o win32-low.o"
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srv_tgtobj="${srv_tgtobj} win32-i386-low.o"
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@ -31,10 +31,6 @@
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gdb_static_assert (sizeof (CORE_ADDR) >= sizeof (void *));
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#ifdef __MINGW32CE__
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#include "wincecompat.h"
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#endif
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#include "gdbsupport/version.h"
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#if !HAVE_DECL_PERROR
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@ -1,168 +0,0 @@
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/* Copyright (C) 2007-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "server.h"
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#include "win32-low.h"
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using namespace windows_nat;
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#ifndef CONTEXT_FLOATING_POINT
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#define CONTEXT_FLOATING_POINT 0
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#endif
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/* Defined in auto-generated file reg-arm.c. */
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void init_registers_arm (void);
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extern const struct target_desc *tdesc_arm;
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static void
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arm_get_thread_context (windows_thread_info *th)
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{
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th->context.ContextFlags = \
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CONTEXT_FULL | \
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CONTEXT_FLOATING_POINT;
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GetThreadContext (th->h, &th->context);
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}
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#define context_offset(x) ((int)&(((CONTEXT *)NULL)->x))
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static const int mappings[] = {
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context_offset (R0),
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context_offset (R1),
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context_offset (R2),
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context_offset (R3),
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context_offset (R4),
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context_offset (R5),
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context_offset (R6),
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context_offset (R7),
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context_offset (R8),
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context_offset (R9),
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context_offset (R10),
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context_offset (R11),
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context_offset (R12),
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context_offset (Sp),
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context_offset (Lr),
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context_offset (Pc),
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-1, /* f0 */
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-1, /* f1 */
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-1, /* f2 */
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-1, /* f3 */
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-1, /* f4 */
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-1, /* f5 */
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-1, /* f6 */
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-1, /* f7 */
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-1, /* fps */
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context_offset (Psr),
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};
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#undef context_offset
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/* Return a pointer into a CONTEXT field indexed by gdb register number.
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Return a pointer to an dummy register holding zero if there is no
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corresponding CONTEXT field for the given register number. */
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static char *
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regptr (CONTEXT* c, int r)
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{
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if (mappings[r] < 0)
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{
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static ULONG zero;
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/* Always force value to zero, in case the user tried to write
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to this register before. */
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zero = 0;
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return (char *) &zero;
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}
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else
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return (char *) c + mappings[r];
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}
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/* Fetch register from gdbserver regcache data. */
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static void
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arm_fetch_inferior_register (struct regcache *regcache,
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windows_thread_info *th, int r)
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{
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char *context_offset = regptr (&th->context, r);
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supply_register (regcache, r, context_offset);
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}
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/* Store a new register value into the thread context of TH. */
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static void
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arm_store_inferior_register (struct regcache *regcache,
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windows_thread_info *th, int r)
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{
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collect_register (regcache, r, regptr (&th->context, r));
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}
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static void
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arm_arch_setup (void)
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{
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init_registers_arm ();
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win32_tdesc = tdesc_arm;
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}
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/* Implement win32_target_ops "num_regs" method. */
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static int
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arm_num_regs (void)
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{
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return sizeof (mappings) / sizeof (mappings[0]),
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}
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/* Correct in either endianness. We do not support Thumb yet. */
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static const unsigned long arm_wince_breakpoint = 0xe6000010;
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#define arm_wince_breakpoint_len 4
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/* Implement win32_target_ops "get_pc" method. */
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static CORE_ADDR
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arm_win32_get_pc (struct regcache *regcache)
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{
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uint32_t pc;
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collect_register_by_name (regcache, "pc", &pc);
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return (CORE_ADDR) pc;
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}
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/* Implement win32_target_ops "set_pc" method. */
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static void
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arm_win32_set_pc (struct regcache *regcache, CORE_ADDR pc)
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{
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uint32_t newpc = pc;
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supply_register_by_name (regcache, "pc", &newpc);
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}
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struct win32_target_ops the_low_target = {
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arm_arch_setup,
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arm_num_regs,
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NULL, /* initial_stuff */
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arm_get_thread_context,
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NULL, /* prepare_to_resume */
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NULL, /* thread_added */
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arm_fetch_inferior_register,
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arm_store_inferior_register,
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NULL, /* single_step */
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(const unsigned char *) &arm_wince_breakpoint,
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arm_wince_breakpoint_len,
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0,
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arm_win32_get_pc,
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arm_win32_set_pc,
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/* Watchpoint related functions. See target.h for comments. */
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NULL, /* supports_z_point_type */
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NULL, /* insert_point */
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NULL, /* remove_point */
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NULL, /* stopped_by_watchpoint */
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NULL /* stopped_data_address */
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};
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@ -1421,69 +1421,39 @@ get_child_debug_event (DWORD *continue_status,
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goto gotevent;
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}
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#ifndef _WIN32_WCE
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attaching = 0;
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#else
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if (attaching)
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{
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/* WinCE doesn't set an initial breakpoint automatically. To
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stop the inferior, we flush all currently pending debug
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events -- the thread list and the dll list are always
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reported immediatelly without delay, then, we suspend all
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threads and pretend we saw a trap at the current PC of the
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main thread.
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{
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gdb::optional<pending_stop> stop = fetch_pending_stop (debug_threads);
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if (stop.has_value ())
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{
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*ourstatus = stop->status;
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current_event = stop->event;
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ptid = debug_event_ptid (¤t_event);
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current_thread = find_thread_ptid (ptid);
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return 1;
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}
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Contrary to desktop Windows, Windows CE *does* report the dll
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names on LOAD_DLL_DEBUG_EVENTs resulting from a
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DebugActiveProcess call. This limits the way we can detect
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if all the dlls have already been reported. If we get a real
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debug event before leaving attaching, the worst that will
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happen is the user will see a spurious breakpoint. */
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/* Keep the wait time low enough for comfortable remote
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interruption, but high enough so gdbserver doesn't become a
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bottleneck. */
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if (!wait_for_debug_event (¤t_event, 250))
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{
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DWORD e = GetLastError();
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current_event.dwDebugEventCode = 0;
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if (!wait_for_debug_event (¤t_event, 0))
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{
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OUTMSG2(("no attach events left\n"));
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fake_breakpoint_event ();
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attaching = 0;
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}
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else
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OUTMSG2(("got attach event\n"));
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}
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else
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#endif
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{
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gdb::optional<pending_stop> stop = fetch_pending_stop (debug_threads);
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if (stop.has_value ())
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{
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*ourstatus = stop->status;
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current_event = stop->event;
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ptid = debug_event_ptid (¤t_event);
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current_thread = find_thread_ptid (ptid);
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return 1;
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}
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if (e == ERROR_PIPE_NOT_CONNECTED)
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{
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/* This will happen if the loader fails to succesfully
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load the application, e.g., if the main executable
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tries to pull in a non-existing export from a
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DLL. */
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ourstatus->kind = TARGET_WAITKIND_EXITED;
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ourstatus->value.integer = 1;
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return 1;
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}
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/* Keep the wait time low enough for comfortable remote
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interruption, but high enough so gdbserver doesn't become a
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bottleneck. */
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if (!wait_for_debug_event (¤t_event, 250))
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{
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DWORD e = GetLastError();
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if (e == ERROR_PIPE_NOT_CONNECTED)
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{
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/* This will happen if the loader fails to succesfully
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load the application, e.g., if the main executable
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tries to pull in a non-existing export from a
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DLL. */
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ourstatus->kind = TARGET_WAITKIND_EXITED;
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ourstatus->value.integer = 1;
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return 1;
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}
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return 0;
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}
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}
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return 0;
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}
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}
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gotevent:
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@ -1534,19 +1504,6 @@ get_child_debug_event (DWORD *continue_status,
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main_thread_id,
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current_event.u.CreateProcessInfo.hThread,
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current_event.u.CreateProcessInfo.lpThreadLocalBase);
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#ifdef _WIN32_WCE
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if (!attaching)
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{
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/* Windows CE doesn't set the initial breakpoint
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automatically like the desktop versions of Windows do.
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We add it explicitly here. It will be removed as soon as
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it is hit. */
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set_breakpoint_at ((CORE_ADDR) (long) current_event.u
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.CreateProcessInfo.lpStartAddress,
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auto_delete_breakpoint);
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}
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#endif
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break;
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case EXIT_PROCESS_DEBUG_EVENT:
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@ -183,8 +183,4 @@ extern void win32_require_context (windows_nat::windows_thread_info *th);
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of GetLastError. */
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extern char * strwinerror (DWORD error);
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/* in wincecompat.c */
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extern void to_back_slashes (char *);
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#endif /* GDBSERVER_WIN32_LOW_H */
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@ -1,38 +0,0 @@
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/* Compatibility routines for Windows CE.
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Copyright (C) 2007-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#include "server.h"
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#include <windows.h>
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void
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perror (const char *s)
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{
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if (s && *s)
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fprintf (stderr, "%s: %s\n", s, strwinerror (GetLastError ()));
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else
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fprintf (stderr, "%s\n", strwinerror (GetLastError ()));
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}
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void
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to_back_slashes (char *path)
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{
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for (; *path; ++path)
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if ('/' == *path)
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*path = '\\';
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}
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@ -1,30 +0,0 @@
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/* Compatibility routines for Windows CE.
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Copyright (C) 2007-2020 Free Software Foundation, Inc.
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This file is part of GDB.
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This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 3 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program is distributed in the hope that it will be useful,
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||||
but WITHOUT ANY WARRANTY; without even the implied warranty of
|
||||
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
|
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GNU General Public License for more details.
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||||
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||||
You should have received a copy of the GNU General Public License
|
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along with this program. If not, see <http://www.gnu.org/licenses/>. */
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#ifndef GDBSERVER_WINCECOMPAT_H
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#define GDBSERVER_WINCECOMPAT_H
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#include <windows.h>
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#define errno (GetLastError ())
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/* in win32-low.c */
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extern char * strwinerror (DWORD error);
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#define strerror strwinerror
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#endif /* GDBSERVER_WINCECOMPAT_H */
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