2015-06-10 15:28:43 +02:00
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/* Linux namespaces(7) support.
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2020-01-01 07:20:01 +01:00
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Copyright (C) 2015-2020 Free Software Foundation, Inc.
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2015-06-10 15:28:43 +02:00
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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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Rename common to gdbsupport
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.
2019-05-06 04:29:24 +02:00
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#include "gdbsupport/common-defs.h"
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2015-06-10 15:28:43 +02:00
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#include "nat/linux-namespaces.h"
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Rename common to gdbsupport
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.
2019-05-06 04:29:24 +02:00
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#include "gdbsupport/filestuff.h"
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2015-06-10 15:28:43 +02:00
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#include <fcntl.h>
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#include <sys/syscall.h>
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#include <sys/types.h>
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#include <sys/stat.h>
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#include <sys/socket.h>
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Rename common to gdbsupport
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.
2019-05-06 04:29:24 +02:00
|
|
|
#include "gdbsupport/gdb_wait.h"
|
2015-06-10 15:28:43 +02:00
|
|
|
#include <signal.h>
|
|
|
|
#include <sched.h>
|
Rename common to gdbsupport
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.
2019-05-06 04:29:24 +02:00
|
|
|
#include "gdbsupport/scope-exit.h"
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
/* See nat/linux-namespaces.h. */
|
Change boolean options to bool instead of int
This is for add_setshow_boolean_cmd as well as the gdb::option interface.
gdb/ChangeLog:
2019-09-17 Christian Biesinger <cbiesinger@google.com>
* ada-lang.c (ada_ignore_descriptive_types_p): Change to bool.
(print_signatures): Likewise.
(trust_pad_over_xvs): Likewise.
* arch/aarch64-insn.c (aarch64_debug): Likewise.
* arch/aarch64-insn.h (aarch64_debug): Likewise.
* arm-linux-nat.c (arm_apcs_32): Likewise.
* arm-linux-tdep.c (arm_apcs_32): Likewise.
* arm-nbsd-nat.c (arm_apcs_32): Likewise.
* arm-tdep.c (arm_debug): Likewise.
(arm_apcs_32): Likewise.
* auto-load.c (debug_auto_load): Likewise.
(auto_load_gdb_scripts): Likewise.
(global_auto_load): Likewise.
(auto_load_local_gdbinit): Likewise.
(auto_load_local_gdbinit_loaded): Likewise.
* auto-load.h (global_auto_load): Likewise.
(auto_load_local_gdbinit): Likewise.
(auto_load_local_gdbinit_loaded): Likewise.
* breakpoint.c (disconnected_dprintf): Likewise.
(breakpoint_proceeded): Likewise.
(automatic_hardware_breakpoints): Likewise.
(always_inserted_mode): Likewise.
(target_exact_watchpoints): Likewise.
(_initialize_breakpoint): Update.
* breakpoint.h (target_exact_watchpoints): Change to bool.
* btrace.c (maint_btrace_pt_skip_pad): Likewise.
* cli/cli-cmds.c (trace_commands): Likewise.
* cli/cli-cmds.h (trace_commands): Likewise.
* cli/cli-decode.c (add_setshow_boolean_cmd): Change int* argument
to bool*.
* cli/cli-logging.c (logging_overwrite): Change to bool.
(logging_redirect): Likewise.
(debug_redirect): Likewise.
* cli/cli-option.h (option_def) <boolean>: Change return type to bool*.
(struct boolean_option_def) <get_var_address_cb_>: Change return type
to bool.
<boolean_option_def>: Update.
(struct flag_option_def): Change default type of Context to bool
from int.
<flag_option_def>: Change return type of var_address_cb_ to bool*.
* cli/cli-setshow.c (do_set_command): Cast to bool* instead of int*.
(get_setshow_command_value_string): Likewise.
* cli/cli-style.c (cli_styling): Change to bool.
(source_styling): Likewise.
* cli/cli-style.h (source_styling): Likewise.
(cli_styling): Likewise.
* cli/cli-utils.h (struct qcs_flags) <quiet, cont, silent>: Change
to bool.
* command.h (var_types): Update comment.
(add_setshow_boolean_cmd): Change int* var argument to bool*.
* compile/compile-cplus-types.c (debug_compile_cplus_types): Change to
bool.
(debug_compile_cplus_scopes): Likewise.
* compile/compile-internal.h (compile_debug): Likewise.
* compile/compile.c (compile_debug): Likewise.
(struct compile_options) <raw>: Likewise.
* cp-support.c (catch_demangler_crashes): Likewise.
* cris-tdep.c (usr_cmd_cris_version_valid): Likewise.
(usr_cmd_cris_dwarf2_cfi): Likewise.
* csky-tdep.c (csky_debug): Likewise.
* darwin-nat.c (enable_mach_exceptions): Likewise.
* dcache.c (dcache_enabled_p): Likewise.
* defs.h (info_verbose): Likewise.
* demangle.c (demangle): Likewise.
(asm_demangle): Likewise.
* dwarf-index-cache.c (debug_index_cache): Likewise.
* dwarf2-frame.c (dwarf2_frame_unwinders_enabled_p): Likewise.
* dwarf2-frame.h (dwarf2_frame_unwinders_enabled_p): Likewise.
* dwarf2read.c (check_physname): Likewise.
(use_deprecated_index_sections): Likewise.
(dwarf_always_disassemble): Likewise.
* eval.c (overload_resolution): Likewise.
* event-top.c (set_editing_cmd_var): Likewise.
(exec_done_display_p): Likewise.
* event-top.h (set_editing_cmd_var): Likewise.
(exec_done_display_p): Likewise.
* exec.c (write_files): Likewise.
* fbsd-nat.c (debug_fbsd_lwp): Likewise
(debug_fbsd_nat): Likewise.
* frame.h (struct frame_print_options) <print_raw_frame_arguments>:
Likewise.
(struct set_backtrace_options) <backtrace_past_main>: Likewise.
<backtrace_past_entry> Likewise.
* gdb-demangle.h (demangle): Likewise.
(asm_demangle): Likewise.
* gdb_bfd.c (bfd_sharing): Likewise.
* gdbcore.h (write_files): Likewise.
* gdbsupport/common-debug.c (show_debug_regs): Likewise.
* gdbsupport/common-debug.h (show_debug_regs): Likewise.
* gdbthread.h (print_thread_events): Likewise.
* gdbtypes.c (opaque_type_resolution): Likewise.
(strict_type_checking): Likewise.
* gnu-nat.c (gnu_debug_flag): Likewise.
* guile/scm-auto-load.c (auto_load_guile_scripts): Likewise.
* guile/scm-param.c (pascm_variable): Add boolval.
(add_setshow_generic): Update.
(pascm_param_value): Update.
(pascm_set_param_value_x): Update.
* hppa-tdep.c (hppa_debug): Change to bool..
* infcall.c (may_call_functions_p): Likewise.
(coerce_float_to_double_p): Likewise.
(unwind_on_signal_p): Likewise.
(unwind_on_terminating_exception_p): Likewise.
* infcmd.c (startup_with_shell): Likewise.
* inferior.c (print_inferior_events): Likewise.
* inferior.h (startup_with_shell): Likewise.
(print_inferior_events): Likewise.
* infrun.c (step_stop_if_no_debug): Likewise.
(detach_fork): Likewise.
(debug_displaced): Likewise.
(disable_randomization): Likewise.
(non_stop): Likewise.
(non_stop_1): Likewise.
(observer_mode): Likewise.
(observer_mode_1): Likewise.
(set_observer_mode): Update.
(sched_multi): Change to bool.
* infrun.h (debug_displaced): Likewise.
(sched_multi): Likewise.
(step_stop_if_no_debug): Likewise.
(non_stop): Likewise.
(disable_randomization): Likewise.
* linux-tdep.c (use_coredump_filter): Likewise.
(dump_excluded_mappings): Likewise.
* linux-thread-db.c (auto_load_thread_db): Likewise.
(check_thread_db_on_load): Likewise.
* main.c (captured_main_1): Update.
* maint-test-options.c (struct test_options_opts) <flag_opt, xx1_opt,
xx2_opt, boolean_opt>: Change to bool.
* maint-test-settings.c (maintenance_test_settings_boolean): Likewise.
* maint.c (maintenance_profile_p): Likewise.
(per_command_time): Likewise.
(per_command_space): Likewise.
(per_command_symtab): Likewise.
* memattr.c (inaccessible_by_default): Likewise.
* mi/mi-main.c (mi_async): Likewise.
(mi_async_1): Likewise.
* mips-tdep.c (mips64_transfers_32bit_regs_p): Likewise.
* nat/fork-inferior.h (startup_with_shell): Likewise.
* nat/linux-namespaces.c (debug_linux_namespaces): Likewise.
* nat/linux-namespaces.h (debug_linux_namespaces): Likewise.
* nios2-tdep.c (nios2_debug): Likewise.
* or1k-tdep.c (or1k_debug): Likewise.
* parse.c (parser_debug): Likewise.
* parser-defs.h (parser_debug): Likewise.
* printcmd.c (print_symbol_filename): Likewise.
* proc-api.c (procfs_trace): Likewise.
* python/py-auto-load.c (auto_load_python_scripts): Likewise.
* python/py-param.c (union parmpy_variable): Add "bool boolval" field.
(set_parameter_value): Update.
(add_setshow_generic): Update.
* python/py-value.c (copy_py_bool_obj): Change argument from int*
to bool*.
* python/python.c (gdbpy_parameter_value): Cast to bool* instead of
int*.
* ravenscar-thread.c (ravenscar_task_support): Change to bool.
* record-btrace.c (record_btrace_target::store_registers): Update.
* record-full.c (record_full_memory_query): Change to bool.
(record_full_stop_at_limit): Likewise.
* record-full.h (record_full_memory_query): Likewise.
* remote-notif.c (notif_debug): Likewise.
* remote-notif.h (notif_debug): Likewise.
* remote.c (use_range_stepping): Likewise.
(interrupt_on_connect): Likewise.
(remote_break): Likewise.
* ser-tcp.c (tcp_auto_retry): Likewise.
* ser-unix.c (serial_hwflow): Likewise.
* skip.c (debug_skip): Likewise.
* solib-aix.c (solib_aix_debug): Likewise.
* spu-tdep.c (spu_stop_on_load_p): Likewise.
(spu_auto_flush_cache_p): Likewise.
* stack.c (struct backtrace_cmd_options) <full, no_filters, hide>:
Likewise.
(struct info_print_options) <quiet>: Likewise.
* symfile-debug.c (debug_symfile): Likewise.
* symfile.c (auto_solib_add): Likewise.
(separate_debug_file_debug): Likewise.
* symfile.h (auto_solib_add): Likewise.
(separate_debug_file_debug): Likewise.
* symtab.c (basenames_may_differ): Likewise.
(struct filename_partial_match_opts) <dirname, basename>: Likewise.
(struct info_print_options) <quiet, exclude_minsyms>: Likewise.
(struct info_types_options) <quiet>: Likewise.
* symtab.h (demangle): Likewise.
(basenames_may_differ): Likewise.
* target-dcache.c (stack_cache_enabled_1): Likewise.
(code_cache_enabled_1): Likewise.
* target.c (trust_readonly): Likewise.
(may_write_registers): Likewise.
(may_write_memory): Likewise.
(may_insert_breakpoints): Likewise.
(may_insert_tracepoints): Likewise.
(may_insert_fast_tracepoints): Likewise.
(may_stop): Likewise.
(auto_connect_native_target): Likewise.
(target_stop_and_wait): Update.
(target_async_permitted): Change to bool.
(target_async_permitted_1): Likewise.
(may_write_registers_1): Likewise.
(may_write_memory_1): Likewise.
(may_insert_breakpoints_1): Likewise.
(may_insert_tracepoints_1): Likewise.
(may_insert_fast_tracepoints_1): Likewise.
(may_stop_1): Likewise.
* target.h (target_async_permitted): Likewise.
(may_write_registers): Likewise.
(may_write_memory): Likewise.
(may_insert_breakpoints): Likewise.
(may_insert_tracepoints): Likewise.
(may_insert_fast_tracepoints): Likewise.
(may_stop): Likewise.
* thread.c (struct info_threads_opts) <show_global_ids>: Likewise.
(make_thread_apply_all_options_def_group): Change argument from int*
to bool*.
(thread_apply_all_command): Update.
(print_thread_events): Change to bool.
* top.c (confirm): Likewise.
(command_editing_p): Likewise.
(history_expansion_p): Likewise.
(write_history_p): Likewise.
(info_verbose): Likewise.
* top.h (confirm): Likewise.
(history_expansion_p): Likewise.
* tracepoint.c (disconnected_tracing): Likewise.
(circular_trace_buffer): Likewise.
* typeprint.c (print_methods): Likewise.
(print_typedefs): Likewise.
* utils.c (debug_timestamp): Likewise.
(sevenbit_strings): Likewise.
(pagination_enabled): Likewise.
* utils.h (sevenbit_strings): Likewise.
(pagination_enabled): Likewise.
* valops.c (overload_resolution): Likewise.
* valprint.h (struct value_print_options) <prettyformat_arrays,
prettyformat_structs, vtblprint, unionprint, addressprint, objectprint,
stop_print_at_null, print_array_indexes, deref_ref, static_field_print,
pascal_static_field_print, raw, summary, symbol_print, finish_print>:
Likewise.
* windows-nat.c (new_console): Likewise.
(cygwin_exceptions): Likewise.
(new_group): Likewise.
(debug_exec): Likewise.
(debug_events): Likewise.
(debug_memory): Likewise.
(debug_exceptions): Likewise.
(useshell): Likewise.
* windows-tdep.c (maint_display_all_tib): Likewise.
* xml-support.c (debug_xml): Likewise.
2019-09-14 21:36:58 +02:00
|
|
|
bool debug_linux_namespaces;
|
2015-06-10 15:28:43 +02:00
|
|
|
|
2016-01-18 10:45:10 +01:00
|
|
|
/* Handle systems without fork. */
|
|
|
|
|
|
|
|
static inline pid_t
|
|
|
|
do_fork (void)
|
|
|
|
{
|
|
|
|
#ifdef HAVE_FORK
|
|
|
|
return fork ();
|
|
|
|
#else
|
|
|
|
errno = ENOSYS;
|
|
|
|
return -1;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2015-06-10 15:28:43 +02:00
|
|
|
/* Handle systems without setns. */
|
|
|
|
|
2015-07-14 17:46:16 +02:00
|
|
|
static inline int
|
|
|
|
do_setns (int fd, int nstype)
|
2015-06-10 15:28:43 +02:00
|
|
|
{
|
2015-07-14 17:46:16 +02:00
|
|
|
#ifdef HAVE_SETNS
|
|
|
|
return setns (fd, nstype);
|
|
|
|
#elif defined __NR_setns
|
2015-06-10 15:28:43 +02:00
|
|
|
return syscall (__NR_setns, fd, nstype);
|
|
|
|
#else
|
|
|
|
errno = ENOSYS;
|
|
|
|
return -1;
|
|
|
|
#endif
|
|
|
|
}
|
|
|
|
|
2015-06-16 16:18:03 +02:00
|
|
|
/* Handle systems without MSG_CMSG_CLOEXEC. */
|
|
|
|
|
|
|
|
#ifndef MSG_CMSG_CLOEXEC
|
|
|
|
#define MSG_CMSG_CLOEXEC 0
|
|
|
|
#endif
|
|
|
|
|
2015-06-10 15:28:43 +02:00
|
|
|
/* A Linux namespace. */
|
|
|
|
|
|
|
|
struct linux_ns
|
|
|
|
{
|
|
|
|
/* Filename of this namespace's entries in /proc/PID/ns. */
|
|
|
|
const char *filename;
|
|
|
|
|
|
|
|
/* Nonzero if this object has been initialized. */
|
|
|
|
int initialized;
|
|
|
|
|
|
|
|
/* Nonzero if this namespace is supported on this system. */
|
|
|
|
int supported;
|
|
|
|
|
|
|
|
/* ID of the namespace the calling process is in, used to
|
|
|
|
see if other processes share the namespace. The code in
|
|
|
|
this file assumes that the calling process never changes
|
|
|
|
namespace. */
|
|
|
|
ino_t id;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Return the absolute filename of process PID's /proc/PID/ns
|
|
|
|
entry for namespace NS. The returned value persists until
|
|
|
|
this function is next called. */
|
|
|
|
|
|
|
|
static const char *
|
|
|
|
linux_ns_filename (struct linux_ns *ns, int pid)
|
|
|
|
{
|
|
|
|
static char filename[PATH_MAX];
|
|
|
|
|
|
|
|
gdb_assert (pid > 0);
|
|
|
|
xsnprintf (filename, sizeof (filename), "/proc/%d/ns/%s", pid,
|
|
|
|
ns->filename);
|
|
|
|
|
|
|
|
return filename;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Return a representation of the caller's TYPE namespace, or
|
|
|
|
NULL if TYPE namespaces are not supported on this system. */
|
|
|
|
|
|
|
|
static struct linux_ns *
|
|
|
|
linux_ns_get_namespace (enum linux_ns_type type)
|
|
|
|
{
|
|
|
|
static struct linux_ns namespaces[NUM_LINUX_NS_TYPES] =
|
|
|
|
{
|
|
|
|
{ "ipc" },
|
|
|
|
{ "mnt" },
|
|
|
|
{ "net" },
|
|
|
|
{ "pid" },
|
|
|
|
{ "user" },
|
|
|
|
{ "uts" },
|
|
|
|
};
|
|
|
|
struct linux_ns *ns;
|
|
|
|
|
|
|
|
gdb_assert (type >= 0 && type < NUM_LINUX_NS_TYPES);
|
|
|
|
ns = &namespaces[type];
|
|
|
|
|
|
|
|
if (!ns->initialized)
|
|
|
|
{
|
|
|
|
struct stat sb;
|
|
|
|
|
|
|
|
if (stat (linux_ns_filename (ns, getpid ()), &sb) == 0)
|
|
|
|
{
|
|
|
|
ns->id = sb.st_ino;
|
|
|
|
|
|
|
|
ns->supported = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
ns->initialized = 1;
|
|
|
|
}
|
|
|
|
|
|
|
|
return ns->supported ? ns : NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* See nat/linux-namespaces.h. */
|
|
|
|
|
|
|
|
int
|
|
|
|
linux_ns_same (pid_t pid, enum linux_ns_type type)
|
|
|
|
{
|
|
|
|
struct linux_ns *ns = linux_ns_get_namespace (type);
|
|
|
|
const char *filename;
|
|
|
|
struct stat sb;
|
|
|
|
|
|
|
|
/* If the kernel does not support TYPE namespaces then there's
|
|
|
|
effectively only one TYPE namespace that all processes on
|
|
|
|
the system share. */
|
|
|
|
if (ns == NULL)
|
|
|
|
return 1;
|
|
|
|
|
|
|
|
/* Stat PID's TYPE namespace entry to get the namespace ID. This
|
|
|
|
might fail if the process died, or if we don't have the right
|
|
|
|
permissions (though we should be attached by this time so this
|
|
|
|
seems unlikely). In any event, we can't make any decisions and
|
|
|
|
must throw. */
|
|
|
|
filename = linux_ns_filename (ns, pid);
|
|
|
|
if (stat (filename, &sb) != 0)
|
|
|
|
perror_with_name (filename);
|
|
|
|
|
|
|
|
return sb.st_ino == ns->id;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* We need to use setns(2) to handle filesystem access in mount
|
|
|
|
namespaces other than our own, but this isn't permitted for
|
|
|
|
multithreaded processes. GDB is multithreaded when compiled
|
|
|
|
with Guile support, and may become multithreaded if compiled
|
|
|
|
with Python support. We deal with this by spawning a single-
|
|
|
|
threaded helper process to access mount namespaces other than
|
|
|
|
our own.
|
|
|
|
|
|
|
|
The helper process is started the first time a call to setns
|
|
|
|
is required. The main process (GDB or gdbserver) communicates
|
|
|
|
with the helper via sockets, passing file descriptors where
|
|
|
|
necessary using SCM_RIGHTS. Once started the helper process
|
|
|
|
runs until the main process terminates; when this happens the
|
|
|
|
helper will receive socket errors, notice that its parent died,
|
|
|
|
and exit accordingly (see mnsh_maybe_mourn_peer).
|
|
|
|
|
|
|
|
The protocol is that the main process sends a request in a
|
|
|
|
single message, and the helper replies to every message it
|
|
|
|
receives with a single-message response. If the helper
|
|
|
|
receives a message it does not understand it will reply with
|
|
|
|
a MNSH_MSG_ERROR message. The main process checks all
|
|
|
|
responses it receives with gdb_assert, so if the main process
|
|
|
|
receives something unexpected (which includes MNSH_MSG_ERROR)
|
|
|
|
the main process will call internal_error.
|
|
|
|
|
|
|
|
For avoidance of doubt, if the helper process receives a
|
|
|
|
message it doesn't handle it will reply with MNSH_MSG_ERROR.
|
|
|
|
If the main process receives MNSH_MSG_ERROR at any time then
|
|
|
|
it will call internal_error. If internal_error causes the
|
|
|
|
main process to exit, the helper will notice this and also
|
|
|
|
exit. The helper will not exit until the main process
|
|
|
|
terminates, so if the user continues through internal_error
|
|
|
|
the helper will still be there awaiting requests from the
|
|
|
|
main process.
|
|
|
|
|
|
|
|
Messages in both directions have the following payload:
|
|
|
|
|
|
|
|
- TYPE (enum mnsh_msg_type, always sent) - the message type.
|
|
|
|
- INT1 and
|
|
|
|
- INT2 (int, always sent, though not always used) - two
|
|
|
|
values whose meaning is message-type-dependent.
|
|
|
|
See enum mnsh_msg_type documentation below.
|
|
|
|
- FD (int, optional, sent using SCM_RIGHTS) - an open file
|
|
|
|
descriptor.
|
|
|
|
- BUF (unstructured data, optional) - some data with message-
|
|
|
|
type-dependent meaning.
|
|
|
|
|
|
|
|
Note that the helper process is the child of a call to fork,
|
|
|
|
so all code in the helper must be async-signal-safe. */
|
|
|
|
|
|
|
|
/* Mount namespace helper message types. */
|
|
|
|
|
|
|
|
enum mnsh_msg_type
|
|
|
|
{
|
|
|
|
/* A communication error occurred. Receipt of this message
|
|
|
|
by either end will cause an assertion failure in the main
|
|
|
|
process. */
|
|
|
|
MNSH_MSG_ERROR,
|
|
|
|
|
|
|
|
/* Requests, sent from the main process to the helper. */
|
|
|
|
|
|
|
|
/* A request that the helper call setns. Arguments should
|
|
|
|
be passed in FD and INT1. Helper should respond with a
|
|
|
|
MNSH_RET_INT. */
|
|
|
|
MNSH_REQ_SETNS,
|
|
|
|
|
|
|
|
/* A request that the helper call open. Arguments should
|
|
|
|
be passed in BUF, INT1 and INT2. The filename (in BUF)
|
|
|
|
should include a terminating NUL character. The helper
|
|
|
|
should respond with a MNSH_RET_FD. */
|
|
|
|
MNSH_REQ_OPEN,
|
|
|
|
|
|
|
|
/* A request that the helper call unlink. The single
|
|
|
|
argument (the filename) should be passed in BUF, and
|
|
|
|
should include a terminating NUL character. The helper
|
|
|
|
should respond with a MNSH_RET_INT. */
|
|
|
|
MNSH_REQ_UNLINK,
|
|
|
|
|
|
|
|
/* A request that the helper call readlink. The single
|
|
|
|
argument (the filename) should be passed in BUF, and
|
|
|
|
should include a terminating NUL character. The helper
|
|
|
|
should respond with a MNSH_RET_INTSTR. */
|
|
|
|
MNSH_REQ_READLINK,
|
|
|
|
|
|
|
|
/* Responses, sent to the main process from the helper. */
|
|
|
|
|
|
|
|
/* Return an integer in INT1 and errno in INT2. */
|
|
|
|
MNSH_RET_INT,
|
|
|
|
|
|
|
|
/* Return a file descriptor in FD if one was opened or an
|
|
|
|
integer in INT1 otherwise. Return errno in INT2. */
|
|
|
|
MNSH_RET_FD,
|
|
|
|
|
|
|
|
/* Return an integer in INT1, errno in INT2, and optionally
|
|
|
|
some data in BUF. */
|
|
|
|
MNSH_RET_INTSTR,
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Print a string representation of a message using debug_printf.
|
|
|
|
This function is not async-signal-safe so should never be
|
|
|
|
called from the helper. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
mnsh_debug_print_message (enum mnsh_msg_type type,
|
|
|
|
int fd, int int1, int int2,
|
|
|
|
const void *buf, int bufsiz)
|
|
|
|
{
|
|
|
|
gdb_byte *c = (gdb_byte *) buf;
|
|
|
|
gdb_byte *cl = c + bufsiz;
|
|
|
|
|
|
|
|
switch (type)
|
|
|
|
{
|
|
|
|
case MNSH_MSG_ERROR:
|
|
|
|
debug_printf ("ERROR");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MNSH_REQ_SETNS:
|
|
|
|
debug_printf ("SETNS");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MNSH_REQ_OPEN:
|
|
|
|
debug_printf ("OPEN");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MNSH_REQ_UNLINK:
|
|
|
|
debug_printf ("UNLINK");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MNSH_REQ_READLINK:
|
|
|
|
debug_printf ("READLINK");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MNSH_RET_INT:
|
|
|
|
debug_printf ("INT");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MNSH_RET_FD:
|
|
|
|
debug_printf ("FD");
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MNSH_RET_INTSTR:
|
|
|
|
debug_printf ("INTSTR");
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
debug_printf ("unknown-packet-%d", type);
|
|
|
|
}
|
|
|
|
|
|
|
|
debug_printf (" %d %d %d \"", fd, int1, int2);
|
|
|
|
|
|
|
|
for (; c < cl; c++)
|
|
|
|
debug_printf (*c >= ' ' && *c <= '~' ? "%c" : "\\%o", *c);
|
|
|
|
|
|
|
|
debug_printf ("\"");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Forward declaration. */
|
|
|
|
|
|
|
|
static void mnsh_maybe_mourn_peer (void);
|
|
|
|
|
|
|
|
/* Send a message. The argument SOCK is the file descriptor of the
|
|
|
|
sending socket, the other arguments are the payload to send.
|
|
|
|
Return the number of bytes sent on success. Return -1 on failure
|
|
|
|
and set errno appropriately. This function is called by both the
|
|
|
|
main process and the helper so must be async-signal-safe. */
|
|
|
|
|
|
|
|
static ssize_t
|
|
|
|
mnsh_send_message (int sock, enum mnsh_msg_type type,
|
|
|
|
int fd, int int1, int int2,
|
|
|
|
const void *buf, int bufsiz)
|
|
|
|
{
|
|
|
|
struct msghdr msg;
|
|
|
|
struct iovec iov[4];
|
|
|
|
char fdbuf[CMSG_SPACE (sizeof (fd))];
|
|
|
|
ssize_t size;
|
|
|
|
|
|
|
|
/* Build the basic TYPE, INT1, INT2 message. */
|
|
|
|
memset (&msg, 0, sizeof (msg));
|
|
|
|
msg.msg_iov = iov;
|
|
|
|
|
|
|
|
iov[0].iov_base = &type;
|
|
|
|
iov[0].iov_len = sizeof (type);
|
|
|
|
iov[1].iov_base = &int1;
|
|
|
|
iov[1].iov_len = sizeof (int1);
|
|
|
|
iov[2].iov_base = &int2;
|
|
|
|
iov[2].iov_len = sizeof (int2);
|
|
|
|
|
|
|
|
msg.msg_iovlen = 3;
|
|
|
|
|
|
|
|
/* Append BUF if supplied. */
|
|
|
|
if (buf != NULL && bufsiz > 0)
|
|
|
|
{
|
|
|
|
iov[3].iov_base = alloca (bufsiz);
|
|
|
|
memcpy (iov[3].iov_base, buf, bufsiz);
|
|
|
|
iov[3].iov_len = bufsiz;
|
|
|
|
|
|
|
|
msg.msg_iovlen ++;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Attach FD if supplied. */
|
|
|
|
if (fd >= 0)
|
|
|
|
{
|
|
|
|
struct cmsghdr *cmsg;
|
|
|
|
|
|
|
|
msg.msg_control = fdbuf;
|
|
|
|
msg.msg_controllen = sizeof (fdbuf);
|
|
|
|
|
|
|
|
cmsg = CMSG_FIRSTHDR (&msg);
|
|
|
|
cmsg->cmsg_level = SOL_SOCKET;
|
|
|
|
cmsg->cmsg_type = SCM_RIGHTS;
|
|
|
|
cmsg->cmsg_len = CMSG_LEN (sizeof (int));
|
|
|
|
|
|
|
|
memcpy (CMSG_DATA (cmsg), &fd, sizeof (int));
|
|
|
|
|
|
|
|
msg.msg_controllen = cmsg->cmsg_len;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Send the message. */
|
|
|
|
size = sendmsg (sock, &msg, 0);
|
|
|
|
|
|
|
|
if (size < 0)
|
|
|
|
mnsh_maybe_mourn_peer ();
|
|
|
|
|
|
|
|
if (debug_linux_namespaces)
|
|
|
|
{
|
|
|
|
debug_printf ("mnsh: send: ");
|
|
|
|
mnsh_debug_print_message (type, fd, int1, int2, buf, bufsiz);
|
2015-06-11 14:38:15 +02:00
|
|
|
debug_printf (" -> %s\n", pulongest (size));
|
2015-06-10 15:28:43 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
return size;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Receive a message. The argument SOCK is the file descriptor of
|
|
|
|
the receiving socket, the other arguments point to storage for
|
|
|
|
the received payload. Returns the number of bytes stored into
|
|
|
|
BUF on success, which may be zero in the event no BUF was sent.
|
|
|
|
Return -1 on failure and set errno appropriately. This function
|
|
|
|
is called from both the main process and the helper and must be
|
|
|
|
async-signal-safe. */
|
|
|
|
|
|
|
|
static ssize_t
|
|
|
|
mnsh_recv_message (int sock, enum mnsh_msg_type *type,
|
|
|
|
int *fd, int *int1, int *int2,
|
|
|
|
void *buf, int bufsiz)
|
|
|
|
{
|
|
|
|
struct msghdr msg;
|
|
|
|
struct iovec iov[4];
|
|
|
|
char fdbuf[CMSG_SPACE (sizeof (*fd))];
|
|
|
|
struct cmsghdr *cmsg;
|
|
|
|
ssize_t size, fixed_size;
|
|
|
|
int i;
|
|
|
|
|
|
|
|
/* Build the message to receive data into. */
|
|
|
|
memset (&msg, 0, sizeof (msg));
|
|
|
|
msg.msg_iov = iov;
|
|
|
|
|
|
|
|
iov[0].iov_base = type;
|
|
|
|
iov[0].iov_len = sizeof (*type);
|
|
|
|
iov[1].iov_base = int1;
|
|
|
|
iov[1].iov_len = sizeof (*int1);
|
|
|
|
iov[2].iov_base = int2;
|
|
|
|
iov[2].iov_len = sizeof (*int2);
|
|
|
|
iov[3].iov_base = buf;
|
|
|
|
iov[3].iov_len = bufsiz;
|
|
|
|
|
|
|
|
msg.msg_iovlen = 4;
|
|
|
|
|
|
|
|
for (fixed_size = i = 0; i < msg.msg_iovlen - 1; i++)
|
|
|
|
fixed_size += iov[i].iov_len;
|
|
|
|
|
|
|
|
msg.msg_control = fdbuf;
|
|
|
|
msg.msg_controllen = sizeof (fdbuf);
|
|
|
|
|
|
|
|
/* Receive the message. */
|
|
|
|
size = recvmsg (sock, &msg, MSG_CMSG_CLOEXEC);
|
|
|
|
if (size < 0)
|
|
|
|
{
|
|
|
|
if (debug_linux_namespaces)
|
2015-06-11 14:38:15 +02:00
|
|
|
debug_printf ("namespace-helper: recv failed (%s)\n",
|
|
|
|
pulongest (size));
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
mnsh_maybe_mourn_peer ();
|
|
|
|
|
|
|
|
return size;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check for truncation. */
|
|
|
|
if (size < fixed_size || (msg.msg_flags & (MSG_TRUNC | MSG_CTRUNC)))
|
|
|
|
{
|
|
|
|
if (debug_linux_namespaces)
|
2015-06-11 14:38:15 +02:00
|
|
|
debug_printf ("namespace-helper: recv truncated (%s 0x%x)\n",
|
|
|
|
pulongest (size), msg.msg_flags);
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
mnsh_maybe_mourn_peer ();
|
|
|
|
|
|
|
|
errno = EBADMSG;
|
|
|
|
return -1;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Unpack the file descriptor if supplied. */
|
|
|
|
cmsg = CMSG_FIRSTHDR (&msg);
|
|
|
|
if (cmsg != NULL
|
|
|
|
&& cmsg->cmsg_len == CMSG_LEN (sizeof (int))
|
|
|
|
&& cmsg->cmsg_level == SOL_SOCKET
|
|
|
|
&& cmsg->cmsg_type == SCM_RIGHTS)
|
|
|
|
memcpy (fd, CMSG_DATA (cmsg), sizeof (int));
|
|
|
|
else
|
|
|
|
*fd = -1;
|
|
|
|
|
|
|
|
if (debug_linux_namespaces)
|
|
|
|
{
|
|
|
|
debug_printf ("mnsh: recv: ");
|
|
|
|
mnsh_debug_print_message (*type, *fd, *int1, *int2, buf,
|
|
|
|
size - fixed_size);
|
|
|
|
debug_printf ("\n");
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Return the number of bytes of data in BUF. */
|
|
|
|
return size - fixed_size;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Shortcuts for returning results from the helper. */
|
|
|
|
|
|
|
|
#define mnsh_return_int(sock, result, error) \
|
|
|
|
mnsh_send_message (sock, MNSH_RET_INT, -1, result, error, NULL, 0)
|
|
|
|
|
|
|
|
#define mnsh_return_fd(sock, fd, error) \
|
|
|
|
mnsh_send_message (sock, MNSH_RET_FD, \
|
|
|
|
(fd) < 0 ? -1 : (fd), \
|
|
|
|
(fd) < 0 ? (fd) : 0, \
|
|
|
|
error, NULL, 0)
|
|
|
|
|
|
|
|
#define mnsh_return_intstr(sock, result, buf, bufsiz, error) \
|
|
|
|
mnsh_send_message (sock, MNSH_RET_INTSTR, -1, result, error, \
|
|
|
|
buf, bufsiz)
|
|
|
|
|
|
|
|
/* Handle a MNSH_REQ_SETNS message. Must be async-signal-safe. */
|
|
|
|
|
|
|
|
static ssize_t
|
|
|
|
mnsh_handle_setns (int sock, int fd, int nstype)
|
|
|
|
{
|
2015-07-14 17:46:16 +02:00
|
|
|
int result = do_setns (fd, nstype);
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
return mnsh_return_int (sock, result, errno);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Handle a MNSH_REQ_OPEN message. Must be async-signal-safe. */
|
|
|
|
|
|
|
|
static ssize_t
|
|
|
|
mnsh_handle_open (int sock, const char *filename,
|
|
|
|
int flags, mode_t mode)
|
|
|
|
{
|
|
|
|
int fd = gdb_open_cloexec (filename, flags, mode);
|
|
|
|
ssize_t result = mnsh_return_fd (sock, fd, errno);
|
|
|
|
|
|
|
|
if (fd >= 0)
|
|
|
|
close (fd);
|
|
|
|
|
|
|
|
return result;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Handle a MNSH_REQ_UNLINK message. Must be async-signal-safe. */
|
|
|
|
|
|
|
|
static ssize_t
|
|
|
|
mnsh_handle_unlink (int sock, const char *filename)
|
|
|
|
{
|
|
|
|
int result = unlink (filename);
|
|
|
|
|
|
|
|
return mnsh_return_int (sock, result, errno);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Handle a MNSH_REQ_READLINK message. Must be async-signal-safe. */
|
|
|
|
|
|
|
|
static ssize_t
|
|
|
|
mnsh_handle_readlink (int sock, const char *filename)
|
|
|
|
{
|
|
|
|
char buf[PATH_MAX];
|
|
|
|
int len = readlink (filename, buf, sizeof (buf));
|
|
|
|
|
|
|
|
return mnsh_return_intstr (sock, len,
|
|
|
|
buf, len < 0 ? 0 : len,
|
|
|
|
errno);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The helper process. Never returns. Must be async-signal-safe. */
|
|
|
|
|
|
|
|
static void mnsh_main (int sock) ATTRIBUTE_NORETURN;
|
|
|
|
|
|
|
|
static void
|
|
|
|
mnsh_main (int sock)
|
|
|
|
{
|
|
|
|
while (1)
|
|
|
|
{
|
|
|
|
enum mnsh_msg_type type;
|
2019-08-27 20:22:38 +02:00
|
|
|
int fd = -1, int1, int2;
|
2015-06-10 15:28:43 +02:00
|
|
|
char buf[PATH_MAX];
|
|
|
|
ssize_t size, response = -1;
|
|
|
|
|
|
|
|
size = mnsh_recv_message (sock, &type,
|
|
|
|
&fd, &int1, &int2,
|
|
|
|
buf, sizeof (buf));
|
|
|
|
|
|
|
|
if (size >= 0 && size < sizeof (buf))
|
|
|
|
{
|
|
|
|
switch (type)
|
|
|
|
{
|
|
|
|
case MNSH_REQ_SETNS:
|
|
|
|
if (fd > 0)
|
|
|
|
response = mnsh_handle_setns (sock, fd, int1);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MNSH_REQ_OPEN:
|
|
|
|
if (size > 0 && buf[size - 1] == '\0')
|
|
|
|
response = mnsh_handle_open (sock, buf, int1, int2);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MNSH_REQ_UNLINK:
|
|
|
|
if (size > 0 && buf[size - 1] == '\0')
|
|
|
|
response = mnsh_handle_unlink (sock, buf);
|
|
|
|
break;
|
|
|
|
|
|
|
|
case MNSH_REQ_READLINK:
|
|
|
|
if (size > 0 && buf[size - 1] == '\0')
|
|
|
|
response = mnsh_handle_readlink (sock, buf);
|
|
|
|
break;
|
|
|
|
|
|
|
|
default:
|
|
|
|
break; /* Handled below. */
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Close any file descriptors we were passed. */
|
|
|
|
if (fd >= 0)
|
|
|
|
close (fd);
|
|
|
|
|
|
|
|
/* Can't handle this message, bounce it back. */
|
|
|
|
if (response < 0)
|
|
|
|
{
|
|
|
|
if (size < 0)
|
|
|
|
size = 0;
|
|
|
|
|
|
|
|
mnsh_send_message (sock, MNSH_MSG_ERROR,
|
|
|
|
-1, int1, int2, buf, size);
|
|
|
|
}
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* The mount namespace helper process. */
|
|
|
|
|
|
|
|
struct linux_mnsh
|
|
|
|
{
|
|
|
|
/* PID of helper. */
|
|
|
|
pid_t pid;
|
|
|
|
|
|
|
|
/* Socket for communication. */
|
|
|
|
int sock;
|
|
|
|
|
|
|
|
/* ID of the mount namespace the helper is currently in. */
|
|
|
|
ino_t nsid;
|
|
|
|
};
|
|
|
|
|
|
|
|
/* In the helper process this is set to the PID of the process that
|
|
|
|
created the helper (i.e. GDB or gdbserver). In the main process
|
|
|
|
this is set to zero. Used by mnsh_maybe_mourn_peer. */
|
|
|
|
static int mnsh_creator_pid = 0;
|
|
|
|
|
|
|
|
/* Return an object representing the mount namespace helper process.
|
|
|
|
If no mount namespace helper process has been started then start
|
|
|
|
one. Return NULL if no mount namespace helper process could be
|
|
|
|
started. */
|
|
|
|
|
|
|
|
static struct linux_mnsh *
|
|
|
|
linux_mntns_get_helper (void)
|
|
|
|
{
|
|
|
|
static struct linux_mnsh *helper = NULL;
|
|
|
|
|
|
|
|
if (helper == NULL)
|
|
|
|
{
|
|
|
|
static struct linux_mnsh h;
|
|
|
|
struct linux_ns *ns;
|
|
|
|
pid_t helper_creator = getpid ();
|
|
|
|
int sv[2];
|
|
|
|
|
|
|
|
ns = linux_ns_get_namespace (LINUX_NS_MNT);
|
|
|
|
if (ns == NULL)
|
|
|
|
return NULL;
|
|
|
|
|
|
|
|
if (gdb_socketpair_cloexec (AF_UNIX, SOCK_STREAM, 0, sv) < 0)
|
|
|
|
return NULL;
|
|
|
|
|
2016-01-18 10:45:10 +01:00
|
|
|
h.pid = do_fork ();
|
2015-06-10 15:28:43 +02:00
|
|
|
if (h.pid < 0)
|
|
|
|
{
|
|
|
|
int saved_errno = errno;
|
|
|
|
|
|
|
|
close (sv[0]);
|
|
|
|
close (sv[1]);
|
|
|
|
|
|
|
|
errno = saved_errno;
|
|
|
|
return NULL;
|
|
|
|
}
|
|
|
|
|
|
|
|
if (h.pid == 0)
|
|
|
|
{
|
|
|
|
/* Child process. */
|
|
|
|
close (sv[0]);
|
|
|
|
|
|
|
|
mnsh_creator_pid = helper_creator;
|
|
|
|
|
|
|
|
/* Debug printing isn't async-signal-safe. */
|
|
|
|
debug_linux_namespaces = 0;
|
|
|
|
|
|
|
|
mnsh_main (sv[1]);
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Parent process. */
|
|
|
|
close (sv[1]);
|
|
|
|
|
|
|
|
helper = &h;
|
|
|
|
helper->sock = sv[0];
|
|
|
|
helper->nsid = ns->id;
|
|
|
|
|
|
|
|
if (debug_linux_namespaces)
|
|
|
|
debug_printf ("Started mount namespace helper process %d\n",
|
|
|
|
helper->pid);
|
|
|
|
}
|
|
|
|
|
|
|
|
return helper;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Check whether the other process died and act accordingly. Called
|
|
|
|
whenever a socket error occurs, from both the main process and the
|
|
|
|
helper. Must be async-signal-safe when called from the helper. */
|
|
|
|
|
|
|
|
static void
|
|
|
|
mnsh_maybe_mourn_peer (void)
|
|
|
|
{
|
|
|
|
if (mnsh_creator_pid != 0)
|
|
|
|
{
|
|
|
|
/* We're in the helper. Check if our current parent is the
|
|
|
|
process that started us. If it isn't, then our original
|
|
|
|
parent died and we've been reparented. Exit immediately
|
|
|
|
if that's the case. */
|
|
|
|
if (getppid () != mnsh_creator_pid)
|
|
|
|
_exit (0);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
{
|
|
|
|
/* We're in the main process. */
|
|
|
|
|
|
|
|
struct linux_mnsh *helper = linux_mntns_get_helper ();
|
|
|
|
int status;
|
|
|
|
pid_t pid;
|
|
|
|
|
|
|
|
if (helper->pid < 0)
|
|
|
|
{
|
|
|
|
/* We already mourned it. */
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
|
|
|
|
pid = waitpid (helper->pid, &status, WNOHANG);
|
|
|
|
if (pid == 0)
|
|
|
|
{
|
|
|
|
/* The helper is still alive. */
|
|
|
|
return;
|
|
|
|
}
|
|
|
|
else if (pid == -1)
|
|
|
|
{
|
|
|
|
if (errno == ECHILD)
|
|
|
|
warning (_("mount namespace helper vanished?"));
|
|
|
|
else
|
|
|
|
internal_warning (__FILE__, __LINE__,
|
|
|
|
_("unhandled error %d"), errno);
|
|
|
|
}
|
|
|
|
else if (pid == helper->pid)
|
|
|
|
{
|
|
|
|
if (WIFEXITED (status))
|
|
|
|
warning (_("mount namespace helper exited with status %d"),
|
|
|
|
WEXITSTATUS (status));
|
|
|
|
else if (WIFSIGNALED (status))
|
|
|
|
warning (_("mount namespace helper killed by signal %d"),
|
|
|
|
WTERMSIG (status));
|
|
|
|
else
|
|
|
|
internal_warning (__FILE__, __LINE__,
|
|
|
|
_("unhandled status %d"), status);
|
|
|
|
}
|
|
|
|
else
|
|
|
|
internal_warning (__FILE__, __LINE__,
|
|
|
|
_("unknown pid %d"), pid);
|
|
|
|
|
|
|
|
/* Something unrecoverable happened. */
|
|
|
|
helper->pid = -1;
|
|
|
|
}
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Shortcuts for sending messages to the helper. */
|
|
|
|
|
|
|
|
#define mnsh_send_setns(helper, fd, nstype) \
|
|
|
|
mnsh_send_message (helper->sock, MNSH_REQ_SETNS, fd, nstype, 0, \
|
|
|
|
NULL, 0)
|
|
|
|
|
|
|
|
#define mnsh_send_open(helper, filename, flags, mode) \
|
|
|
|
mnsh_send_message (helper->sock, MNSH_REQ_OPEN, -1, flags, mode, \
|
|
|
|
filename, strlen (filename) + 1)
|
|
|
|
|
|
|
|
#define mnsh_send_unlink(helper, filename) \
|
|
|
|
mnsh_send_message (helper->sock, MNSH_REQ_UNLINK, -1, 0, 0, \
|
|
|
|
filename, strlen (filename) + 1)
|
|
|
|
|
|
|
|
#define mnsh_send_readlink(helper, filename) \
|
|
|
|
mnsh_send_message (helper->sock, MNSH_REQ_READLINK, -1, 0, 0, \
|
|
|
|
filename, strlen (filename) + 1)
|
|
|
|
|
|
|
|
/* Receive a message from the helper. Issue an assertion failure if
|
|
|
|
the message isn't a correctly-formatted MNSH_RET_INT. Set RESULT
|
|
|
|
and ERROR and return 0 on success. Set errno and return -1 on
|
|
|
|
failure. */
|
|
|
|
|
|
|
|
static int
|
|
|
|
mnsh_recv_int (struct linux_mnsh *helper, int *result, int *error)
|
|
|
|
{
|
|
|
|
enum mnsh_msg_type type;
|
|
|
|
char buf[PATH_MAX];
|
|
|
|
ssize_t size;
|
|
|
|
int fd;
|
|
|
|
|
|
|
|
size = mnsh_recv_message (helper->sock, &type, &fd,
|
|
|
|
result, error,
|
|
|
|
buf, sizeof (buf));
|
|
|
|
if (size < 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
gdb_assert (type == MNSH_RET_INT);
|
|
|
|
gdb_assert (fd == -1);
|
|
|
|
gdb_assert (size == 0);
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Receive a message from the helper. Issue an assertion failure if
|
|
|
|
the message isn't a correctly-formatted MNSH_RET_FD. Set FD and
|
|
|
|
ERROR and return 0 on success. Set errno and return -1 on
|
|
|
|
failure. */
|
|
|
|
|
|
|
|
static int
|
|
|
|
mnsh_recv_fd (struct linux_mnsh *helper, int *fd, int *error)
|
|
|
|
{
|
|
|
|
enum mnsh_msg_type type;
|
|
|
|
char buf[PATH_MAX];
|
|
|
|
ssize_t size;
|
|
|
|
int result;
|
|
|
|
|
|
|
|
size = mnsh_recv_message (helper->sock, &type, fd,
|
|
|
|
&result, error,
|
|
|
|
buf, sizeof (buf));
|
|
|
|
if (size < 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
gdb_assert (type == MNSH_RET_FD);
|
|
|
|
gdb_assert (size == 0);
|
|
|
|
|
|
|
|
if (*fd < 0)
|
|
|
|
{
|
|
|
|
gdb_assert (result < 0);
|
|
|
|
*fd = result;
|
|
|
|
}
|
|
|
|
|
|
|
|
return 0;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Receive a message from the helper. Issue an assertion failure if
|
|
|
|
the message isn't a correctly-formatted MNSH_RET_INTSTR. Set
|
|
|
|
RESULT and ERROR and optionally store data in BUF, then return
|
|
|
|
the number of bytes stored in BUF on success (this may be zero).
|
|
|
|
Set errno and return -1 on error. */
|
|
|
|
|
|
|
|
static ssize_t
|
|
|
|
mnsh_recv_intstr (struct linux_mnsh *helper,
|
|
|
|
int *result, int *error,
|
|
|
|
void *buf, int bufsiz)
|
|
|
|
{
|
|
|
|
enum mnsh_msg_type type;
|
|
|
|
ssize_t size;
|
|
|
|
int fd;
|
|
|
|
|
|
|
|
size = mnsh_recv_message (helper->sock, &type, &fd,
|
|
|
|
result, error,
|
|
|
|
buf, bufsiz);
|
|
|
|
|
|
|
|
if (size < 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
gdb_assert (type == MNSH_RET_INTSTR);
|
|
|
|
gdb_assert (fd == -1);
|
|
|
|
|
|
|
|
return size;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* Return values for linux_mntns_access_fs. */
|
|
|
|
|
|
|
|
enum mnsh_fs_code
|
|
|
|
{
|
|
|
|
/* Something went wrong, errno is set. */
|
|
|
|
MNSH_FS_ERROR = -1,
|
|
|
|
|
|
|
|
/* The main process is in the correct mount namespace.
|
|
|
|
The caller should access the filesystem directly. */
|
|
|
|
MNSH_FS_DIRECT,
|
|
|
|
|
|
|
|
/* The helper is in the correct mount namespace.
|
|
|
|
The caller should access the filesystem via the helper. */
|
|
|
|
MNSH_FS_HELPER
|
|
|
|
};
|
|
|
|
|
|
|
|
/* Return a value indicating how the caller should access the
|
|
|
|
mount namespace of process PID. */
|
|
|
|
|
|
|
|
static enum mnsh_fs_code
|
|
|
|
linux_mntns_access_fs (pid_t pid)
|
|
|
|
{
|
|
|
|
struct linux_ns *ns;
|
|
|
|
struct stat sb;
|
|
|
|
struct linux_mnsh *helper;
|
|
|
|
ssize_t size;
|
2019-01-24 14:43:45 +01:00
|
|
|
int fd;
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
if (pid == getpid ())
|
|
|
|
return MNSH_FS_DIRECT;
|
|
|
|
|
|
|
|
ns = linux_ns_get_namespace (LINUX_NS_MNT);
|
|
|
|
if (ns == NULL)
|
|
|
|
return MNSH_FS_DIRECT;
|
|
|
|
|
|
|
|
fd = gdb_open_cloexec (linux_ns_filename (ns, pid), O_RDONLY, 0);
|
|
|
|
if (fd < 0)
|
2019-01-24 14:43:45 +01:00
|
|
|
return MNSH_FS_ERROR;
|
2015-06-10 15:28:43 +02:00
|
|
|
|
2019-01-24 14:43:45 +01:00
|
|
|
SCOPE_EXIT
|
|
|
|
{
|
|
|
|
int save_errno = errno;
|
|
|
|
close (fd);
|
|
|
|
errno = save_errno;
|
|
|
|
};
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
if (fstat (fd, &sb) != 0)
|
2019-01-24 14:43:45 +01:00
|
|
|
return MNSH_FS_ERROR;
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
if (sb.st_ino == ns->id)
|
2019-01-24 14:43:45 +01:00
|
|
|
return MNSH_FS_DIRECT;
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
helper = linux_mntns_get_helper ();
|
|
|
|
if (helper == NULL)
|
2019-01-24 14:43:45 +01:00
|
|
|
return MNSH_FS_ERROR;
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
if (sb.st_ino != helper->nsid)
|
|
|
|
{
|
|
|
|
int result, error;
|
|
|
|
|
|
|
|
size = mnsh_send_setns (helper, fd, 0);
|
|
|
|
if (size < 0)
|
2019-01-24 14:43:45 +01:00
|
|
|
return MNSH_FS_ERROR;
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
if (mnsh_recv_int (helper, &result, &error) != 0)
|
2019-01-24 14:43:45 +01:00
|
|
|
return MNSH_FS_ERROR;
|
2015-06-10 15:28:43 +02:00
|
|
|
|
|
|
|
if (result != 0)
|
|
|
|
{
|
|
|
|
/* ENOSYS indicates that an entire function is unsupported
|
|
|
|
(it's not appropriate for our versions of open/unlink/
|
|
|
|
readlink to sometimes return with ENOSYS depending on how
|
|
|
|
they're called) so we convert ENOSYS to ENOTSUP if setns
|
|
|
|
fails. */
|
|
|
|
if (error == ENOSYS)
|
|
|
|
error = ENOTSUP;
|
|
|
|
|
|
|
|
errno = error;
|
2019-01-24 14:43:45 +01:00
|
|
|
return MNSH_FS_ERROR;
|
2015-06-10 15:28:43 +02:00
|
|
|
}
|
|
|
|
|
|
|
|
helper->nsid = sb.st_ino;
|
|
|
|
}
|
|
|
|
|
|
|
|
return MNSH_FS_HELPER;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* See nat/linux-namespaces.h. */
|
|
|
|
|
|
|
|
int
|
|
|
|
linux_mntns_open_cloexec (pid_t pid, const char *filename,
|
|
|
|
int flags, mode_t mode)
|
|
|
|
{
|
|
|
|
enum mnsh_fs_code access = linux_mntns_access_fs (pid);
|
|
|
|
struct linux_mnsh *helper;
|
|
|
|
int fd, error;
|
|
|
|
ssize_t size;
|
|
|
|
|
|
|
|
if (access == MNSH_FS_ERROR)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (access == MNSH_FS_DIRECT)
|
|
|
|
return gdb_open_cloexec (filename, flags, mode);
|
|
|
|
|
|
|
|
gdb_assert (access == MNSH_FS_HELPER);
|
|
|
|
|
|
|
|
helper = linux_mntns_get_helper ();
|
|
|
|
|
|
|
|
size = mnsh_send_open (helper, filename, flags, mode);
|
|
|
|
if (size < 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (mnsh_recv_fd (helper, &fd, &error) != 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (fd < 0)
|
|
|
|
errno = error;
|
|
|
|
|
|
|
|
return fd;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* See nat/linux-namespaces.h. */
|
|
|
|
|
|
|
|
int
|
|
|
|
linux_mntns_unlink (pid_t pid, const char *filename)
|
|
|
|
{
|
|
|
|
enum mnsh_fs_code access = linux_mntns_access_fs (pid);
|
|
|
|
struct linux_mnsh *helper;
|
|
|
|
int ret, error;
|
|
|
|
ssize_t size;
|
|
|
|
|
|
|
|
if (access == MNSH_FS_ERROR)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (access == MNSH_FS_DIRECT)
|
|
|
|
return unlink (filename);
|
|
|
|
|
|
|
|
gdb_assert (access == MNSH_FS_HELPER);
|
|
|
|
|
|
|
|
helper = linux_mntns_get_helper ();
|
|
|
|
|
|
|
|
size = mnsh_send_unlink (helper, filename);
|
|
|
|
if (size < 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (mnsh_recv_int (helper, &ret, &error) != 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (ret != 0)
|
|
|
|
errno = error;
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|
|
|
|
|
|
|
|
/* See nat/linux-namespaces.h. */
|
|
|
|
|
|
|
|
ssize_t
|
|
|
|
linux_mntns_readlink (pid_t pid, const char *filename,
|
|
|
|
char *buf, size_t bufsiz)
|
|
|
|
{
|
|
|
|
enum mnsh_fs_code access = linux_mntns_access_fs (pid);
|
|
|
|
struct linux_mnsh *helper;
|
|
|
|
int ret, error;
|
|
|
|
ssize_t size;
|
|
|
|
|
|
|
|
if (access == MNSH_FS_ERROR)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
if (access == MNSH_FS_DIRECT)
|
|
|
|
return readlink (filename, buf, bufsiz);
|
|
|
|
|
|
|
|
gdb_assert (access == MNSH_FS_HELPER);
|
|
|
|
|
|
|
|
helper = linux_mntns_get_helper ();
|
|
|
|
|
|
|
|
size = mnsh_send_readlink (helper, filename);
|
|
|
|
if (size < 0)
|
|
|
|
return -1;
|
|
|
|
|
|
|
|
size = mnsh_recv_intstr (helper, &ret, &error, buf, bufsiz);
|
|
|
|
|
|
|
|
if (size < 0)
|
|
|
|
{
|
|
|
|
ret = -1;
|
|
|
|
errno = error;
|
|
|
|
}
|
|
|
|
else
|
|
|
|
gdb_assert (size == ret);
|
|
|
|
|
|
|
|
return ret;
|
|
|
|
}
|