mirror of
https://sourceware.org/git/binutils-gdb.git
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268a13a5a3
This is the next patch in the ongoing series to move gdbsever to the top level. This patch just renames the "common" directory. The idea is to do this move in two parts: first rename the directory (this patch), then move the directory to the top. This approach makes the patches a bit more tractable. I chose the name "gdbsupport" for the directory. However, as this patch was largely written by sed, we could pick a new name without too much difficulty. Tested by the buildbot. gdb/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * contrib/ari/gdb_ari.sh: Change common to gdbsupport. * configure: Rebuild. * configure.ac: Change common to gdbsupport. * gdbsupport: Rename from common. * acinclude.m4: Change common to gdbsupport. * Makefile.in (CONFIG_SRC_SUBDIR, COMMON_SFILES) (HFILES_NO_SRCDIR, stamp-version, ALLDEPFILES): Change common to gdbsupport. * aarch64-tdep.c, ada-lang.c, ada-lang.h, agent.c, alloc.c, amd64-darwin-tdep.c, amd64-dicos-tdep.c, amd64-fbsd-nat.c, amd64-fbsd-tdep.c, amd64-linux-nat.c, amd64-linux-tdep.c, amd64-nbsd-tdep.c, amd64-obsd-tdep.c, amd64-sol2-tdep.c, amd64-tdep.c, amd64-windows-tdep.c, arch-utils.c, arch/aarch64-insn.c, arch/aarch64.c, arch/aarch64.h, arch/amd64.c, arch/amd64.h, arch/arm-get-next-pcs.c, arch/arm-linux.c, arch/arm.c, arch/i386.c, arch/i386.h, arch/ppc-linux-common.c, arch/riscv.c, arch/riscv.h, arch/tic6x.c, arm-tdep.c, auto-load.c, auxv.c, ax-gdb.c, ax-general.c, ax.h, breakpoint.c, breakpoint.h, btrace.c, btrace.h, build-id.c, build-id.h, c-lang.h, charset.c, charset.h, cli/cli-cmds.c, cli/cli-cmds.h, cli/cli-decode.c, cli/cli-dump.c, cli/cli-option.h, cli/cli-script.c, coff-pe-read.c, command.h, compile/compile-c-support.c, compile/compile-c.h, compile/compile-cplus-symbols.c, compile/compile-cplus-types.c, compile/compile-cplus.h, compile/compile-loc2c.c, compile/compile.c, completer.c, completer.h, contrib/ari/gdb_ari.sh, corefile.c, corelow.c, cp-support.c, cp-support.h, cp-valprint.c, csky-tdep.c, ctf.c, darwin-nat.c, debug.c, defs.h, disasm-selftests.c, disasm.c, disasm.h, dtrace-probe.c, dwarf-index-cache.c, dwarf-index-cache.h, dwarf-index-write.c, dwarf2-frame.c, dwarf2expr.c, dwarf2loc.c, dwarf2read.c, event-loop.c, event-top.c, exceptions.c, exec.c, extension.h, fbsd-nat.c, features/aarch64-core.c, features/aarch64-fpu.c, features/aarch64-pauth.c, features/aarch64-sve.c, features/i386/32bit-avx.c, features/i386/32bit-avx512.c, features/i386/32bit-core.c, features/i386/32bit-linux.c, features/i386/32bit-mpx.c, features/i386/32bit-pkeys.c, features/i386/32bit-segments.c, features/i386/32bit-sse.c, features/i386/64bit-avx.c, features/i386/64bit-avx512.c, features/i386/64bit-core.c, features/i386/64bit-linux.c, features/i386/64bit-mpx.c, features/i386/64bit-pkeys.c, features/i386/64bit-segments.c, features/i386/64bit-sse.c, features/i386/x32-core.c, features/riscv/32bit-cpu.c, features/riscv/32bit-csr.c, features/riscv/32bit-fpu.c, features/riscv/64bit-cpu.c, features/riscv/64bit-csr.c, features/riscv/64bit-fpu.c, features/tic6x-c6xp.c, features/tic6x-core.c, features/tic6x-gp.c, filename-seen-cache.h, findcmd.c, findvar.c, fork-child.c, gcore.c, gdb_bfd.c, gdb_bfd.h, gdb_proc_service.h, gdb_regex.c, gdb_select.h, gdb_usleep.c, gdbarch-selftests.c, gdbthread.h, gdbtypes.h, gnu-nat.c, go32-nat.c, guile/guile.c, guile/scm-ports.c, guile/scm-safe-call.c, guile/scm-type.c, i386-fbsd-nat.c, i386-fbsd-tdep.c, i386-go32-tdep.c, i386-linux-nat.c, i386-linux-tdep.c, i386-tdep.c, i387-tdep.c, ia64-libunwind-tdep.c, ia64-linux-nat.c, inf-child.c, inf-ptrace.c, infcall.c, infcall.h, infcmd.c, inferior-iter.h, inferior.c, inferior.h, inflow.c, inflow.h, infrun.c, infrun.h, inline-frame.c, language.h, linespec.c, linux-fork.c, linux-nat.c, linux-tdep.c, linux-thread-db.c, location.c, machoread.c, macrotab.h, main.c, maint.c, maint.h, memattr.c, memrange.h, mi/mi-cmd-break.h, mi/mi-cmd-env.c, mi/mi-cmd-stack.c, mi/mi-cmd-var.c, mi/mi-interp.c, mi/mi-main.c, mi/mi-parse.h, minsyms.c, mips-linux-tdep.c, namespace.h, nat/aarch64-linux-hw-point.c, nat/aarch64-linux-hw-point.h, nat/aarch64-linux.c, nat/aarch64-sve-linux-ptrace.c, nat/amd64-linux-siginfo.c, nat/fork-inferior.c, nat/linux-btrace.c, nat/linux-btrace.h, nat/linux-namespaces.c, nat/linux-nat.h, nat/linux-osdata.c, nat/linux-personality.c, nat/linux-procfs.c, nat/linux-ptrace.c, nat/linux-ptrace.h, nat/linux-waitpid.c, nat/mips-linux-watch.c, nat/mips-linux-watch.h, nat/ppc-linux.c, nat/x86-dregs.c, nat/x86-dregs.h, nat/x86-linux-dregs.c, nat/x86-linux.c, nto-procfs.c, nto-tdep.c, objfile-flags.h, objfiles.c, objfiles.h, obsd-nat.c, observable.h, osdata.c, p-valprint.c, parse.c, parser-defs.h, ppc-linux-nat.c, printcmd.c, probe.c, proc-api.c, procfs.c, producer.c, progspace.h, psymtab.h, python/py-framefilter.c, python/py-inferior.c, python/py-ref.h, python/py-type.c, python/python.c, record-btrace.c, record-full.c, record.c, record.h, regcache-dump.c, regcache.c, regcache.h, remote-fileio.c, remote-fileio.h, remote-sim.c, remote.c, riscv-tdep.c, rs6000-aix-tdep.c, rust-exp.y, s12z-tdep.c, selftest-arch.c, ser-base.c, ser-event.c, ser-pipe.c, ser-tcp.c, ser-unix.c, skip.c, solib-aix.c, solib-target.c, solib.c, source-cache.c, source.c, source.h, sparc-nat.c, spu-linux-nat.c, stack.c, stap-probe.c, symfile-add-flags.h, symfile.c, symfile.h, symtab.c, symtab.h, target-descriptions.c, target-descriptions.h, target-memory.c, target.c, target.h, target/waitstatus.c, target/waitstatus.h, thread-iter.h, thread.c, tilegx-tdep.c, top.c, top.h, tracefile-tfile.c, tracefile.c, tracepoint.c, tracepoint.h, tui/tui-io.c, ui-file.c, ui-out.h, unittests/array-view-selftests.c, unittests/child-path-selftests.c, unittests/cli-utils-selftests.c, unittests/common-utils-selftests.c, unittests/copy_bitwise-selftests.c, unittests/environ-selftests.c, unittests/format_pieces-selftests.c, unittests/function-view-selftests.c, unittests/lookup_name_info-selftests.c, unittests/memory-map-selftests.c, unittests/memrange-selftests.c, unittests/mkdir-recursive-selftests.c, unittests/observable-selftests.c, unittests/offset-type-selftests.c, unittests/optional-selftests.c, unittests/parse-connection-spec-selftests.c, unittests/ptid-selftests.c, unittests/rsp-low-selftests.c, unittests/scoped_fd-selftests.c, unittests/scoped_mmap-selftests.c, unittests/scoped_restore-selftests.c, unittests/string_view-selftests.c, unittests/style-selftests.c, unittests/tracepoint-selftests.c, unittests/unpack-selftests.c, unittests/utils-selftests.c, unittests/xml-utils-selftests.c, utils.c, utils.h, valarith.c, valops.c, valprint.c, value.c, value.h, varobj.c, varobj.h, windows-nat.c, x86-linux-nat.c, xml-support.c, xml-support.h, xml-tdesc.h, xstormy16-tdep.c, xtensa-linux-nat.c, dwarf2read.h: Change common to gdbsupport. gdb/gdbserver/ChangeLog 2019-07-09 Tom Tromey <tom@tromey.com> * configure: Rebuild. * configure.ac: Change common to gdbsupport. * acinclude.m4: Change common to gdbsupport. * Makefile.in (SFILES, OBS, GDBREPLAY_OBS, IPA_OBJS) (version-generated.c, gdbsupport/%-ipa.o, gdbsupport/%.o): Change common to gdbsupport. * ax.c, event-loop.c, fork-child.c, gdb_proc_service.h, gdbreplay.c, gdbthread.h, hostio-errno.c, hostio.c, i387-fp.c, inferiors.c, inferiors.h, linux-aarch64-tdesc-selftest.c, linux-amd64-ipa.c, linux-i386-ipa.c, linux-low.c, linux-tic6x-low.c, linux-x86-low.c, linux-x86-tdesc-selftest.c, linux-x86-tdesc.c, lynx-i386-low.c, lynx-low.c, mem-break.h, nto-x86-low.c, regcache.c, regcache.h, remote-utils.c, server.c, server.h, spu-low.c, symbol.c, target.h, tdesc.c, tdesc.h, thread-db.c, tracepoint.c, win32-i386-low.c, win32-low.c: Change common to gdbsupport.
420 lines
8.8 KiB
C
420 lines
8.8 KiB
C
/* Base/prototype target for default child (native) targets.
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Copyright (C) 1988-2019 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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/* This file provides a common base class/target that all native
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target implementations extend, by calling inf_child_target to get a
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new prototype target and then overriding target methods as
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necessary. */
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#include "defs.h"
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#include "regcache.h"
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#include "memattr.h"
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#include "symtab.h"
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#include "target.h"
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#include "inferior.h"
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#include <sys/stat.h>
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#include "inf-child.h"
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#include "gdbsupport/fileio.h"
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#include "gdbsupport/agent.h"
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#include "gdbsupport/gdb_wait.h"
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#include "gdbsupport/filestuff.h"
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#include <sys/types.h>
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#include <fcntl.h>
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#include <unistd.h>
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static const target_info inf_child_target_info = {
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"native",
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N_("Native process"),
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N_("Native process (started by the \"run\" command).")
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};
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const target_info &
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inf_child_target::info () const
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{
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return inf_child_target_info;
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}
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/* Helper function for child_wait and the derivatives of child_wait.
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HOSTSTATUS is the waitstatus from wait() or the equivalent; store our
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translation of that in OURSTATUS. */
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void
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store_waitstatus (struct target_waitstatus *ourstatus, int hoststatus)
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{
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if (WIFEXITED (hoststatus))
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{
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ourstatus->kind = TARGET_WAITKIND_EXITED;
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ourstatus->value.integer = WEXITSTATUS (hoststatus);
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}
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else if (!WIFSTOPPED (hoststatus))
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{
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ourstatus->kind = TARGET_WAITKIND_SIGNALLED;
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ourstatus->value.sig = gdb_signal_from_host (WTERMSIG (hoststatus));
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}
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else
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{
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ourstatus->kind = TARGET_WAITKIND_STOPPED;
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ourstatus->value.sig = gdb_signal_from_host (WSTOPSIG (hoststatus));
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}
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}
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inf_child_target::~inf_child_target ()
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{}
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void
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inf_child_target::post_attach (int pid)
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{
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/* This target doesn't require a meaningful "post attach" operation
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by a debugger. */
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}
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/* Get ready to modify the registers array. On machines which store
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individual registers, this doesn't need to do anything. On
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machines which store all the registers in one fell swoop, this
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makes sure that registers contains all the registers from the
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program being debugged. */
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void
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inf_child_target::prepare_to_store (struct regcache *regcache)
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{
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}
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bool
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inf_child_target::supports_terminal_ours ()
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{
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return true;
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}
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void
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inf_child_target::terminal_init ()
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{
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child_terminal_init (this);
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}
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void
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inf_child_target::terminal_inferior ()
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{
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child_terminal_inferior (this);
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}
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void
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inf_child_target::terminal_save_inferior ()
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{
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child_terminal_save_inferior (this);
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}
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void
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inf_child_target::terminal_ours_for_output ()
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{
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child_terminal_ours_for_output (this);
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}
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void
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inf_child_target::terminal_ours ()
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{
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child_terminal_ours (this);
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}
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void
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inf_child_target::interrupt ()
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{
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child_interrupt (this);
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}
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void
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inf_child_target::pass_ctrlc ()
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{
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child_pass_ctrlc (this);
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}
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void
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inf_child_target::terminal_info (const char *args, int from_tty)
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{
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child_terminal_info (this, args, from_tty);
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}
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/* True if the user did "target native". In that case, we won't
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unpush the child target automatically when the last inferior is
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gone. */
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static int inf_child_explicitly_opened;
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/* See inf-child.h. */
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void
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inf_child_open_target (const char *arg, int from_tty)
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{
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target_ops *target = get_native_target ();
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/* There's always only ever one native target, and if we get here,
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it better be an inf-child target. */
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gdb_assert (dynamic_cast<inf_child_target *> (target) != NULL);
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target_preopen (from_tty);
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push_target (target);
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inf_child_explicitly_opened = 1;
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if (from_tty)
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printf_filtered ("Done. Use the \"run\" command to start a process.\n");
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}
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/* Implement the to_disconnect target_ops method. */
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void
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inf_child_target::disconnect (const char *args, int from_tty)
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{
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if (args != NULL)
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error (_("Argument given to \"disconnect\"."));
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/* This offers to detach/kill current inferiors, and then pops all
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targets. */
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target_preopen (from_tty);
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}
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/* Implement the to_close target_ops method. */
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void
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inf_child_target::close ()
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{
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/* In case we were forcibly closed. */
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inf_child_explicitly_opened = 0;
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}
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void
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inf_child_target::mourn_inferior ()
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{
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generic_mourn_inferior ();
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maybe_unpush_target ();
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}
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/* See inf-child.h. */
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void
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inf_child_target::maybe_unpush_target ()
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{
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if (!inf_child_explicitly_opened && !have_inferiors ())
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unpush_target (this);
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}
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void
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inf_child_target::post_startup_inferior (ptid_t ptid)
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{
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/* This target doesn't require a meaningful "post startup inferior"
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operation by a debugger. */
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}
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bool
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inf_child_target::can_run ()
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{
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return true;
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}
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bool
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inf_child_target::can_create_inferior ()
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{
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return true;
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}
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bool
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inf_child_target::can_attach ()
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{
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return true;
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}
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char *
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inf_child_target::pid_to_exec_file (int pid)
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{
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/* This target doesn't support translation of a process ID to the
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filename of the executable file. */
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return NULL;
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}
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/* Implementation of to_fileio_open. */
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int
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inf_child_target::fileio_open (struct inferior *inf, const char *filename,
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int flags, int mode, int warn_if_slow,
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int *target_errno)
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{
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int nat_flags;
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mode_t nat_mode;
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int fd;
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if (fileio_to_host_openflags (flags, &nat_flags) == -1
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|| fileio_to_host_mode (mode, &nat_mode) == -1)
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{
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*target_errno = FILEIO_EINVAL;
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return -1;
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}
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fd = gdb_open_cloexec (filename, nat_flags, nat_mode);
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if (fd == -1)
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*target_errno = host_to_fileio_error (errno);
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return fd;
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}
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/* Implementation of to_fileio_pwrite. */
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int
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inf_child_target::fileio_pwrite (int fd, const gdb_byte *write_buf, int len,
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ULONGEST offset, int *target_errno)
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{
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int ret;
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#ifdef HAVE_PWRITE
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ret = pwrite (fd, write_buf, len, (long) offset);
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#else
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ret = -1;
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#endif
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/* If we have no pwrite or it failed for this file, use lseek/write. */
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if (ret == -1)
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{
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ret = lseek (fd, (long) offset, SEEK_SET);
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if (ret != -1)
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ret = write (fd, write_buf, len);
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}
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if (ret == -1)
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*target_errno = host_to_fileio_error (errno);
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return ret;
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}
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/* Implementation of to_fileio_pread. */
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int
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inf_child_target::fileio_pread (int fd, gdb_byte *read_buf, int len,
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ULONGEST offset, int *target_errno)
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{
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int ret;
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#ifdef HAVE_PREAD
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ret = pread (fd, read_buf, len, (long) offset);
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#else
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ret = -1;
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#endif
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/* If we have no pread or it failed for this file, use lseek/read. */
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if (ret == -1)
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{
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ret = lseek (fd, (long) offset, SEEK_SET);
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if (ret != -1)
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ret = read (fd, read_buf, len);
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}
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if (ret == -1)
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*target_errno = host_to_fileio_error (errno);
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return ret;
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}
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/* Implementation of to_fileio_fstat. */
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int
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inf_child_target::fileio_fstat (int fd, struct stat *sb, int *target_errno)
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{
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int ret;
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ret = fstat (fd, sb);
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if (ret == -1)
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*target_errno = host_to_fileio_error (errno);
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return ret;
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}
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/* Implementation of to_fileio_close. */
|
|
|
|
int
|
|
inf_child_target::fileio_close (int fd, int *target_errno)
|
|
{
|
|
int ret;
|
|
|
|
ret = ::close (fd);
|
|
if (ret == -1)
|
|
*target_errno = host_to_fileio_error (errno);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Implementation of to_fileio_unlink. */
|
|
|
|
int
|
|
inf_child_target::fileio_unlink (struct inferior *inf, const char *filename,
|
|
int *target_errno)
|
|
{
|
|
int ret;
|
|
|
|
ret = unlink (filename);
|
|
if (ret == -1)
|
|
*target_errno = host_to_fileio_error (errno);
|
|
|
|
return ret;
|
|
}
|
|
|
|
/* Implementation of to_fileio_readlink. */
|
|
|
|
gdb::optional<std::string>
|
|
inf_child_target::fileio_readlink (struct inferior *inf, const char *filename,
|
|
int *target_errno)
|
|
{
|
|
/* We support readlink only on systems that also provide a compile-time
|
|
maximum path length (PATH_MAX), at least for now. */
|
|
#if defined (PATH_MAX)
|
|
char buf[PATH_MAX];
|
|
int len;
|
|
|
|
len = readlink (filename, buf, sizeof buf);
|
|
if (len < 0)
|
|
{
|
|
*target_errno = host_to_fileio_error (errno);
|
|
return {};
|
|
}
|
|
|
|
return std::string (buf, len);
|
|
#else
|
|
*target_errno = FILEIO_ENOSYS;
|
|
return {};
|
|
#endif
|
|
}
|
|
|
|
bool
|
|
inf_child_target::use_agent (bool use)
|
|
{
|
|
if (agent_loaded_p ())
|
|
{
|
|
::use_agent = use;
|
|
return true;
|
|
}
|
|
else
|
|
return false;
|
|
}
|
|
|
|
bool
|
|
inf_child_target::can_use_agent ()
|
|
{
|
|
return agent_loaded_p ();
|
|
}
|
|
|
|
/* See inf-child.h. */
|
|
|
|
void
|
|
add_inf_child_target (inf_child_target *target)
|
|
{
|
|
set_native_target (target);
|
|
add_target (inf_child_target_info, inf_child_open_target);
|
|
}
|