175 commits
| Author | SHA1 | Message | Date | |
|---|---|---|---|---|
Tom Tromey
|
4196ab2a6d |
Replace write_inferior_memory with target_write_memory
target_write_memory is just a simple wrapper for write_inferior_memory. Because target_write_memory is needed for gdbsupport, and because gdb uses the name "target_write_memory" everywhere, this patch renames write_inferior_memory and removes the wrapper. I think this brings gdb and gdbserver slightly more in sync. gdb/gdbserver/ChangeLog 2019-08-15 Tom Tromey <tromey@adacore.com> * tracepoint.c (write_inferior_data_pointer) (write_inferior_integer, write_inferior_int8) (write_inferior_uinteger, m_tracepoint_action_download) (r_tracepoint_action_download, x_tracepoint_action_download) (l_tracepoint_action_download, clear_inferior_trace_buffer) (download_agent_expr, download_tracepoint_1) (download_trace_state_variables, upload_fast_traceframes): Update. * server.c (gdb_write_memory): Update. * remote-utils.c (relocate_instruction): Update. * proc-service.c (ps_pdwrite): Update. * mem-break.c (remove_memory_breakpoint) (delete_fast_tracepoint_jump, set_fast_tracepoint_jump) (uninsert_fast_tracepoint_jumps_at) (reinsert_fast_tracepoint_jumps_at): Update. * linux-x86-low.c (append_insns) (i386_install_fast_tracepoint_jump_pad) (amd64_write_goto_address, i386_write_goto_address): Update. * linux-s390-low.c (append_insns, s390_write_goto_address): Update. * linux-ppc-low.c (ppc_relocate_instruction) (ppc_install_fast_tracepoint_jump_pad, emit_insns) (ppc_write_goto_address): Update. * linux-aarch64-low.c (append_insns): Update. * target.h (struct target_ops): Update. (write_inferior_memory): Don't declare. * target.c (target_write_memory): Rename from write_inferior_memory. Remove old target_write_memory. |
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Tom Tromey
|
268a13a5a3 |
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. |
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Tom Tromey
|
422186a95c |
Remove newlines from warnings
ARI pointed out that a recent patch introduced a call to "warning"
with a string that ended in a newline:
https://sourceware.org/ml/gdb-patches/2019-06/msg00000.html
This is generally forbidden, I believe, because warning adds its own
newline.
This patch removes all of the trailing newlines I was able to find. I
searched for 'warning (.*\\n"' and then fixed the ones where the
newline appeared at the end of the string (some had internal
newlines).
Tested on x86-64 Fedora 29.
gdb/ChangeLog
2019-06-10 Tom Tromey <tromey@adacore.com>
* m32c-tdep.c (m32c_m16c_address_to_pointer): Don't end warning
with a newline.
* guile/guile.c (handle_boot_error): Don't end warning with a
newline.
* cli/cli-cmds.c (exit_status_set_internal_vars): Don't end
warning with a newline.
* s12z-tdep.c (s12z_skip_prologue): Don't end warning with a
newline.
(s12z_frame_cache): Likewise.
* dwarf-index-cache.c (index_cache::store): Don't end warning with
a newline.
* solib-svr4.c (disable_probes_interface): Don't end warning with
a newline.
* nat/fork-inferior.c (fork_inferior): Don't end warning with a
newline.
* python/python.c (do_finish_initialization): Don't end warning
with a newline.
gdb/gdbserver/ChangeLog
2019-06-10 Tom Tromey <tromey@adacore.com>
* remote-utils.c (look_up_one_symbol, relocate_instruction): Don't
end warning with a newline.
* linux-s390-low.c (s390_get_wordsize): Don't end warning with a
newline.
* thread-db.c (attach_thread): Don't end warning with a newline.
(thread_db_notice_clone): Likewise.
* tracepoint.c (gdb_agent_helper_thread): Don't end warning with a
newline.
* linux-x86-low.c (x86_get_min_fast_tracepoint_insn_len): Don't
end warning with a newline.
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Eli Zaretskii
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353ea2d106 |
On MS-Windows, define _WIN32_WINNT in a single common place.
This changeset defines _WIN32_WINNT to at least 0x0501, the level of Windows XP, unless defined to a higher level, in a single place. It then removes all the overrides of _WIN32_WINNT in individual files as no longer needed. Doing this also solves compilation of windows-nat.c with mingw.org's MinGW, as that file uses CONSOLE_FONT_INFO which needs the XP level to become exposed in the Windows headers, while mingw.org defaults to Windows 9X. gdb/ChangeLog: 2019-05-03 Eli Zaretskii <eliz@gnu.org> * common/common-defs.h [__MINGW32__ || __CYGWIN__]: Define _WIN32_WINNT to the XP level, unless already defined to a higher level. * unittests/parse-connection-spec-selftests.c: * ser-tcp.c: * common/netstuff.c [USE_WIN32API]: Remove the _WIN32_WINNT override. gdb/gdbserver/ChangeLog: 2019-05-03 Eli Zaretskii <eliz@gnu.org> * remote-utils.c: * gdbreplay.c [USE_WIN32API]: Remove the _WIN32_WINNT override. |
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Alan Hayward
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c1bc0935a4 |
gdbserver: Move remote_debug to a single place
A comment in debug.h (written in 2014) states: "We declare debug format variables here, and debug_threads but no other debug content variables (e.g., not remote_debug) because while this file is not currently used by IPA it may be some day, and IPA may have its own set of debug content variables". This has resulted in remote_debug being declared in many .c/.h files throughout gdbserver. It would be much simplier to define it one place. The most logical place to define it is in debug.h, surrounded by #define guards. If IPA is changed, then at that point the variable can be moved elsewhere. gdb/gdbserver/ChangeLog: * debug.c (remote_debug): Add definition. * debug.h (remote_debug): Add declaration. * hostio.c (remote_debug): Remove declaration. * remote-utils.c (struct ui_file): Likewise. (remote_debug): Likewise. * remote-utils.h (remote_debug): Likewise, * server.c (remote_debug): Remove definition. |
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Eli Zaretskii
|
41fa577fbc |
Fix GDB compilation on MinGW (PR gdb/24292)
gdb/ChangeLog: 2019-03-02 Eli Zaretskii <eliz@gnu.org> PR gdb/24292 * common/netstuff.c: * gdbserver/gdbreplay.c * gdbserver/remote-utils.c: * ser-tcp.c: * unittests/parse-connection-spec-selftests.c [USE_WIN32API]: Include ws2tcpip.h instead of wsiapi.h and winsock2.h. Redefine _WIN32_WINNT to 0x0501 if defined to a smaller value, as 'getaddrinfo' and 'freeaddrinfo' were not available before Windows XP, and mingw.org's MinGW headers by default define _WIN32_WINNT to 0x500. |
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Tom Tromey
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0747795c08 |
Normalize includes to use common/
This changes all includes to use the form "common/filename.h" rather than just "filename.h". This was written by a script. gdb/ChangeLog 2019-01-25 Tom Tromey <tom@tromey.com> * xtensa-linux-nat.c: Fix common/ includes. * xml-support.h: Fix common/ includes. * xml-support.c: Fix common/ includes. * x86-linux-nat.c: Fix common/ includes. * windows-nat.c: Fix common/ includes. * varobj.h: Fix common/ includes. * varobj.c: Fix common/ includes. * value.c: Fix common/ includes. * valops.c: Fix common/ includes. * utils.c: Fix common/ includes. * unittests/xml-utils-selftests.c: Fix common/ includes. * unittests/utils-selftests.c: Fix common/ includes. * unittests/unpack-selftests.c: Fix common/ includes. * unittests/tracepoint-selftests.c: Fix common/ includes. * unittests/style-selftests.c: Fix common/ includes. * unittests/string_view-selftests.c: Fix common/ includes. * unittests/scoped_restore-selftests.c: Fix common/ includes. * unittests/scoped_mmap-selftests.c: Fix common/ includes. * unittests/scoped_fd-selftests.c: Fix common/ includes. * unittests/rsp-low-selftests.c: Fix common/ includes. * unittests/parse-connection-spec-selftests.c: Fix common/ includes. * unittests/optional-selftests.c: Fix common/ includes. * unittests/offset-type-selftests.c: Fix common/ includes. * unittests/observable-selftests.c: Fix common/ includes. * unittests/mkdir-recursive-selftests.c: Fix common/ includes. * unittests/memrange-selftests.c: Fix common/ includes. * unittests/memory-map-selftests.c: Fix common/ includes. * unittests/lookup_name_info-selftests.c: Fix common/ includes. * unittests/function-view-selftests.c: Fix common/ includes. * unittests/environ-selftests.c: Fix common/ includes. * unittests/copy_bitwise-selftests.c: Fix common/ includes. * unittests/common-utils-selftests.c: Fix common/ includes. * unittests/cli-utils-selftests.c: Fix common/ includes. * unittests/array-view-selftests.c: Fix common/ includes. * ui-file.c: Fix common/ includes. * tui/tui-io.c: Fix common/ includes. * tracepoint.h: Fix common/ includes. * tracepoint.c: Fix common/ includes. * tracefile-tfile.c: Fix common/ includes. * top.h: Fix common/ includes. * top.c: Fix common/ includes. * thread.c: Fix common/ includes. * target/waitstatus.h: Fix common/ includes. * target/waitstatus.c: Fix common/ includes. * target.h: Fix common/ includes. * target.c: Fix common/ includes. * target-memory.c: Fix common/ includes. * target-descriptions.c: Fix common/ includes. * symtab.h: Fix common/ includes. * symfile.c: Fix common/ includes. * stap-probe.c: Fix common/ includes. * spu-linux-nat.c: Fix common/ includes. * sparc-nat.c: Fix common/ includes. * source.c: Fix common/ includes. * solib.c: Fix common/ includes. * solib-target.c: Fix common/ includes. * ser-unix.c: Fix common/ includes. * ser-tcp.c: Fix common/ includes. * ser-pipe.c: Fix common/ includes. * ser-base.c: Fix common/ includes. * selftest-arch.c: Fix common/ includes. * s12z-tdep.c: Fix common/ includes. * rust-exp.y: Fix common/ includes. * rs6000-aix-tdep.c: Fix common/ includes. * riscv-tdep.c: Fix common/ includes. * remote.c: Fix common/ includes. * remote-notif.h: Fix common/ includes. * remote-fileio.h: Fix common/ includes. * remote-fileio.c: Fix common/ includes. * regcache.h: Fix common/ includes. * regcache.c: Fix common/ includes. * record-btrace.c: Fix common/ includes. * python/python.c: Fix common/ includes. * python/py-type.c: Fix common/ includes. * python/py-inferior.c: Fix common/ includes. * progspace.h: Fix common/ includes. * producer.c: Fix common/ includes. * procfs.c: Fix common/ includes. * proc-api.c: Fix common/ includes. * printcmd.c: Fix common/ includes. * ppc-linux-nat.c: Fix common/ includes. * parser-defs.h: Fix common/ includes. * osdata.c: Fix common/ includes. * obsd-nat.c: Fix common/ includes. * nat/x86-linux.c: Fix common/ includes. * nat/x86-linux-dregs.c: Fix common/ includes. * nat/x86-dregs.h: Fix common/ includes. * nat/x86-dregs.c: Fix common/ includes. * nat/ppc-linux.c: Fix common/ includes. * nat/mips-linux-watch.h: Fix common/ includes. * nat/mips-linux-watch.c: Fix common/ includes. * nat/linux-waitpid.c: Fix common/ includes. * nat/linux-ptrace.h: Fix common/ includes. * nat/linux-ptrace.c: Fix common/ includes. * nat/linux-procfs.c: Fix common/ includes. * nat/linux-personality.c: Fix common/ includes. * nat/linux-osdata.c: Fix common/ includes. * nat/linux-namespaces.c: Fix common/ includes. * nat/linux-btrace.h: Fix common/ includes. * nat/linux-btrace.c: Fix common/ includes. * nat/fork-inferior.c: Fix common/ includes. * nat/amd64-linux-siginfo.c: Fix common/ includes. * nat/aarch64-sve-linux-ptrace.c: Fix common/ includes. * nat/aarch64-linux.c: Fix common/ includes. * nat/aarch64-linux-hw-point.h: Fix common/ includes. * nat/aarch64-linux-hw-point.c: Fix common/ includes. * namespace.h: Fix common/ includes. * mips-linux-tdep.c: Fix common/ includes. * minsyms.c: Fix common/ includes. * mi/mi-parse.h: Fix common/ includes. * mi/mi-main.c: Fix common/ includes. * mi/mi-cmd-env.c: Fix common/ includes. * memrange.h: Fix common/ includes. * memattr.c: Fix common/ includes. * maint.h: Fix common/ includes. * maint.c: Fix common/ includes. * main.c: Fix common/ includes. * machoread.c: Fix common/ includes. * location.c: Fix common/ includes. * linux-thread-db.c: Fix common/ includes. * linux-nat.c: Fix common/ includes. * linux-fork.c: Fix common/ includes. * inline-frame.c: Fix common/ includes. * infrun.c: Fix common/ includes. * inflow.c: Fix common/ includes. * inferior.h: Fix common/ includes. * inferior.c: Fix common/ includes. * infcmd.c: Fix common/ includes. * inf-ptrace.c: Fix common/ includes. * inf-child.c: Fix common/ includes. * ia64-linux-nat.c: Fix common/ includes. * i387-tdep.c: Fix common/ includes. * i386-tdep.c: Fix common/ includes. * i386-linux-tdep.c: Fix common/ includes. * i386-linux-nat.c: Fix common/ includes. * i386-go32-tdep.c: Fix common/ includes. * i386-fbsd-tdep.c: Fix common/ includes. * i386-fbsd-nat.c: Fix common/ includes. * guile/scm-type.c: Fix common/ includes. * guile/guile.c: Fix common/ includes. * go32-nat.c: Fix common/ includes. * gnu-nat.c: Fix common/ includes. * gdbthread.h: Fix common/ includes. * gdbarch-selftests.c: Fix common/ includes. * gdb_usleep.c: Fix common/ includes. * gdb_select.h: Fix common/ includes. * gdb_bfd.c: Fix common/ includes. * gcore.c: Fix common/ includes. * fork-child.c: Fix common/ includes. * findvar.c: Fix common/ includes. * fbsd-nat.c: Fix common/ includes. * event-top.c: Fix common/ includes. * event-loop.c: Fix common/ includes. * dwarf2read.c: Fix common/ includes. * dwarf2loc.c: Fix common/ includes. * dwarf2-frame.c: Fix common/ includes. * dwarf-index-cache.c: Fix common/ includes. * dtrace-probe.c: Fix common/ includes. * disasm-selftests.c: Fix common/ includes. * defs.h: Fix common/ includes. * csky-tdep.c: Fix common/ includes. * cp-valprint.c: Fix common/ includes. * cp-support.h: Fix common/ includes. * cp-support.c: Fix common/ includes. * corelow.c: Fix common/ includes. * completer.h: Fix common/ includes. * completer.c: Fix common/ includes. * compile/compile.c: Fix common/ includes. * compile/compile-loc2c.c: Fix common/ includes. * compile/compile-cplus-types.c: Fix common/ includes. * compile/compile-cplus-symbols.c: Fix common/ includes. * command.h: Fix common/ includes. * cli/cli-dump.c: Fix common/ includes. * cli/cli-cmds.c: Fix common/ includes. * charset.c: Fix common/ includes. * build-id.c: Fix common/ includes. * btrace.h: Fix common/ includes. * btrace.c: Fix common/ includes. * breakpoint.h: Fix common/ includes. * breakpoint.c: Fix common/ includes. * ax.h: (enum agent_op): Fix common/ includes. * ax-general.c (struct aop_map): Fix common/ includes. * ax-gdb.c: Fix common/ includes. * auxv.c: Fix common/ includes. * auto-load.c: Fix common/ includes. * arm-tdep.c: Fix common/ includes. * arch/riscv.c: Fix common/ includes. * arch/ppc-linux-common.c: Fix common/ includes. * arch/i386.c: Fix common/ includes. * arch/arm.c: Fix common/ includes. * arch/arm-linux.c: Fix common/ includes. * arch/arm-get-next-pcs.c: Fix common/ includes. * arch/amd64.c: Fix common/ includes. * arch/aarch64.c: Fix common/ includes. * arch/aarch64-insn.c: Fix common/ includes. * arch-utils.c: Fix common/ includes. * amd64-windows-tdep.c: Fix common/ includes. * amd64-tdep.c: Fix common/ includes. * amd64-sol2-tdep.c: Fix common/ includes. * amd64-obsd-tdep.c: Fix common/ includes. * amd64-nbsd-tdep.c: Fix common/ includes. * amd64-linux-tdep.c: Fix common/ includes. * amd64-linux-nat.c: Fix common/ includes. * amd64-fbsd-tdep.c: Fix common/ includes. * amd64-fbsd-nat.c: Fix common/ includes. * amd64-dicos-tdep.c: Fix common/ includes. * amd64-darwin-tdep.c: Fix common/ includes. * agent.c: Fix common/ includes. * ada-lang.h: Fix common/ includes. * ada-lang.c: Fix common/ includes. * aarch64-tdep.c: Fix common/ includes. gdb/gdbserver/ChangeLog 2019-01-25 Tom Tromey <tom@tromey.com> * win32-low.c: Fix common/ includes. * win32-i386-low.c: Fix common/ includes. * tracepoint.c: Fix common/ includes. * thread-db.c: Fix common/ includes. * target.h: Fix common/ includes. * symbol.c: Fix common/ includes. * spu-low.c: Fix common/ includes. * server.h: Fix common/ includes. * server.c: Fix common/ includes. * remote-utils.c: Fix common/ includes. * regcache.h: Fix common/ includes. * regcache.c: Fix common/ includes. * nto-x86-low.c: Fix common/ includes. * notif.h: Fix common/ includes. * mem-break.h: Fix common/ includes. * lynx-low.c: Fix common/ includes. * lynx-i386-low.c: Fix common/ includes. * linux-x86-tdesc-selftest.c: Fix common/ includes. * linux-x86-low.c: Fix common/ includes. * linux-low.c: Fix common/ includes. * inferiors.h: Fix common/ includes. * i387-fp.c: Fix common/ includes. * hostio.c: Fix common/ includes. * hostio-errno.c: Fix common/ includes. * gdbthread.h: Fix common/ includes. * gdbreplay.c: Fix common/ includes. * fork-child.c: Fix common/ includes. * event-loop.c: Fix common/ includes. * ax.c: (enum gdb_agent_op): Fix common/ includes. |
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Tom Tromey
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be6d4f74c7 |
Remove duplicate or commented-out #includes
I wrote a little script to detect duplicate or commented-out #includes and ran it on gdb. This patch is the result. Tested by rebuilding. gdb/ChangeLog 2019-01-21 Tom Tromey <tom@tromey.com> * ui-out.c: Fix includes. * tui/tui-source.c: Fix includes. * target.c: Fix includes. * remote.c: Fix includes. * regcache.c: Fix includes. * python/py-block.c: Fix includes. * printcmd.c: Fix includes. * or1k-tdep.c: Fix includes. * mi/mi-main.c: Fix includes. * m32r-tdep.c: Fix includes. * csky-tdep.c: Fix includes. * compile/compile-cplus-types.c: Fix includes. * cli/cli-interp.c: Fix includes. gdb/gdbserver/ChangeLog 2019-01-21 Tom Tromey <tom@tromey.com> * tracepoint.c: Fix includes. * remote-utils.c: Fix includes. * linux-x86-low.c: Fix includes. gdb/stubs/ChangeLog 2019-01-21 Tom Tromey <tom@tromey.com> * ia64vms-stub.c: Fix includes. |
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Joel Brobecker
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42a4f53d2b |
Update copyright year range in all GDB files.
This commit applies all changes made after running the gdb/copyright.py script. Note that one file was flagged by the script, due to an invalid copyright header (gdb/unittests/basic_string_view/element_access/char/empty.cc). As the file was copied from GCC's libstdc++-v3 testsuite, this commit leaves this file untouched for the time being; a patch to fix the header was sent to gcc-patches first. gdb/ChangeLog: Update copyright year range in all GDB files. |
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Simon Marchi
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80e24d0986 |
Revert "GDBSERVER: Listen on a unix domain (instead of TCP) socket if requested."
This reverts commit
|
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John Darrington
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f19c7ff839 |
GDBSERVER: Listen on a unix domain (instead of TCP) socket if requested.
When invoking gdbserver, if the COMM parameter takes the form "unix::/path/name"
then a local (unix) domain socket will be created with that name and gdbserver
will listen for connections on that.
gdb/
* NEWS: Mention new feature.
gdb/gdbserver/
* configure.ac (AC_CHECK_HEADERS): Add sys/un.h.
* configure: Regenerate.
* remote-utils.c (remote_prepare): Create a local socket if requested.
(remote_open): Don't attempt to open a file if it's a socket.
(handle_accept_event): Display the name of the socket on connection.
gdb/common/
* netstuff.c (parse_connection_spec)[prefixes]: New member for local domain sockets.
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Tom Tromey
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752312ba4e |
Use GNU style for metasyntactic variables in gdbserver
This changes a couple of places in gdbserver to use the GNU style for metasyntactic variables. gdb/gdbserver/ChangeLog 2018-09-16 Tom Tromey <tom@tromey.com> * remote-utils.c (remote_open): Use GNU style for metasyntactic variables. * gdbreplay.c (gdbreplay_usage): Use GNU style for metasyntactic variables. |
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Tom Tromey
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b0a7723d29 |
Remove unused variables from gdbserver
This removes a few unused variables from gdbserver. The x86-tdesc.h change is a bit unusual for this series. This file was not defining the multiple-include guard symbol, so I've added that here. Also, it is hard to determine when i386_expedite_regs will be needed, so this patch simply marks it ATTRIBUTE_UNUSED. gdb/gdbserver/ChangeLog 2018-07-22 Tom Tromey <tom@tromey.com> * win32-low.c (win32_create_inferior): Remove unused variables. * gdbreplay.c (remote_open): Remove unused variable. * remote-utils.c (remote_prepare): Remove unused variable. * x86-tdesc.h (X86_TDESC_H): Define. (amd64_expedite_regs): Define conditionally. (i386_expedite_regs): Mark ATTRIBUTE_UNUSED. * linux-x86-tdesc.c (i386_tdescs): Move inside #if. * remote-utils.c (readchar): Remove unused variable. |
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Sergio Durigan Junior
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c7ab0aef11 |
Implement IPv6 support for GDB/gdbserver
This patch implements IPv6 support for both GDB and gdbserver. Based on my research, it is the fourth attempt to do that since 2006. Since I used ideas from all of the previous patches, I also added their authors's names on the ChangeLogs as a way to recognize their efforts. For reference sake, you can find the previous attempts at: https://sourceware.org/ml/gdb-patches/2006-09/msg00192.html https://sourceware.org/ml/gdb-patches/2014-02/msg00248.html https://sourceware.org/ml/gdb-patches/2016-02/msg00226.html The basic idea behind the patch is to start using the new 'getaddrinfo'/'getnameinfo' calls, which are responsible for translating names and addresses in a protocol-independent way. This means that if we ever have a new version of the IP protocol, we won't need to change the code again (or, at least, won't have to change the majority of the code). The function 'getaddrinfo' returns a linked list of possible addresses to connect to. Dealing with multiple addresses proved to be a hard task with the current TCP auto-retry mechanism implemented on ser-tcp:net_open. For example, when gdbserver listened only on an IPv4 socket: $ ./gdbserver --once 127.0.0.1:1234 ./a.out and GDB was instructed to try to connect to both IPv6 and IPv4 sockets: $ ./gdb -ex 'target extended-remote localhost:1234' ./a.out the user would notice a somewhat big delay before GDB was able to connect to the IPv4 socket. This happened because GDB was trying to connect to the IPv6 socket first, and had to wait until the connection timed out before it tried to connect to the IPv4 socket. For that reason, I had to rewrite the main loop and implement a new method for handling multiple connections. After some discussion, Pedro and I agreed on the following algorithm: 1) For each entry returned by 'getaddrinfo', we try to open a socket and connect to it. 2.a) If we have a successful 'connect', we just use that connection. 2.b) If we don't have a successfull 'connect', but if we've got a ECONNREFUSED (meaning the the connection was refused), we keep track of this fact by using a flag. 2.c) If we don't have a successfull 'connect', but if we've got a EINPROGRESS (meaning that the connection is in progress), we perform a 'select' call on the socket until we have a result (either a successful connection, or an error on the socket). 3) If tcp_auto_retry is true, and we haven't gotten a successful connection, and at least one of our attempts failed with ECONNREFUSED, then we wait a little bit (i.e., call 'wait_for_connect'), check to see if there was a timeout/interruption (in which case we bail out), and then go back to (1). After multiple tests, I was able to connect without delay on the scenario described above, and was also able to connect in all other types of scenarios. I also implemented some hostname parsing functions (along with their corresponding unit tests) which are used to help GDB and gdbserver to parse hostname strings provided by the user. These new functions are living inside common/netstuff.[ch]. I've had to do that since IPv6 introduces a new URL scheme, which defines that square brackets can be used to enclose the host part and differentiate it from the port (e.g., "[::1]:1234" means "host ::1, port 1234"). I spent some time thinking about a reasonable way to interpret what the user wants, and I came up with the following: - If the user has provided a prefix that doesn't specify the protocol version (i.e., "tcp:" or "udp:"), or if the user has not provided any prefix, don't make any assumptions (i.e., assume AF_UNSPEC when dealing with 'getaddrinfo') *unless* the host starts with "[" (in which case, assume it's an IPv6 host). - If the user has provided a prefix that does specify the protocol version (i.e., "tcp4:", "tcp6:", "udp4:" or "udp6:"), then respect that. This method doesn't follow strictly what RFC 2732 proposes (that literal IPv6 addresses should be provided enclosed in "[" and "]") because IPv6 addresses still can be provided without square brackets in our case, but since we have prefixes to specify protocol versions I think this is not an issue. Another thing worth mentioning is the new 'GDB_TEST_SOCKETHOST' testcase parameter, which makes it possible to specify the hostname (without the port) to be used when testing GDB and gdbserver. For example, to run IPv6 tests: $ make check-gdb RUNTESTFLAGS='GDB_TEST_SOCKETHOST=tcp6:[::1]' Or, to run IPv4 tests: $ make check-gdb RUNTESTFLAGS='GDB_TEST_SOCKETHOST=tcp4:127.0.0.1' This required a few changes on the gdbserver-base.exp, and also a minimal adjustment on gdb.server/run-without-local-binary.exp. Finally, I've implemented a new testcase, gdb.server/server-connect.exp, which is supposed to run on the native host and perform various "smoke tests" using different connection methods. This patch has been regression-tested on BuildBot and locally, and also built using a x86_64-w64-mingw32 GCC, and no problems were found. gdb/ChangeLog: 2018-07-11 Sergio Durigan Junior <sergiodj@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Paul Fertser <fercerpav@gmail.com> Tsutomu Seki <sekiriki@gmail.com> Pedro Alves <palves@redhat.com> * Makefile.in (SUBDIR_UNITTESTS_SRCS): Add 'unittests/parse-connection-spec-selftests.c'. (COMMON_SFILES): Add 'common/netstuff.c'. (HFILES_NO_SRCDIR): Add 'common/netstuff.h'. * NEWS (Changes since GDB 8.2): Mention IPv6 support. * common/netstuff.c: New file. * common/netstuff.h: New file. * ser-tcp.c: Include 'netstuff.h' and 'wspiapi.h'. (wait_for_connect): Update comment. New parameter 'gdb::optional<int> sock' instead of 'struct serial *scb'. Use 'sock' directly instead of 'scb->fd'. (try_connect): New function, with code from 'net_open'. (net_open): Rewrite main loop to deal with multiple sockets/addresses. Handle IPv6-style hostnames; implement support for IPv6 connections. * unittests/parse-connection-spec-selftests.c: New file. gdb/gdbserver/ChangeLog: 2018-07-11 Sergio Durigan Junior <sergiodj@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Paul Fertser <fercerpav@gmail.com> Tsutomu Seki <sekiriki@gmail.com> * Makefile.in (SFILES): Add '$(srcdir)/common/netstuff.c'. (OBS): Add 'common/netstuff.o'. (GDBREPLAY_OBS): Likewise. * gdbreplay.c: Include 'wspiapi.h' and 'netstuff.h'. (remote_open): Implement support for IPv6 connections. * remote-utils.c: Include 'netstuff.h', 'filestuff.h' and 'wspiapi.h'. (handle_accept_event): Accept connections from IPv6 sources. (remote_prepare): Handle IPv6-style hostnames; implement support for IPv6 connections. (remote_open): Implement support for printing connections from IPv6 sources. gdb/testsuite/ChangeLog: 2018-07-11 Sergio Durigan Junior <sergiodj@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Paul Fertser <fercerpav@gmail.com> Tsutomu Seki <sekiriki@gmail.com> * README (Testsuite Parameters): Mention new 'GDB_TEST_SOCKETHOST' parameter. * boards/native-extended-gdbserver.exp: Do not set 'sockethost' by default. * boards/native-gdbserver.exp: Likewise. * gdb.server/run-without-local-binary.exp: Improve regexp used for detecting when a remote debugging connection succeeds. * gdb.server/server-connect.exp: New file. * lib/gdbserver-support.exp (gdbserver_default_get_comm_port): Do not prefix the port number with ":". (gdbserver_start): New global GDB_TEST_SOCKETHOST. Implement support for detecting and using it. Add '$debughost_gdbserver' to the list of arguments used to start gdbserver. Handle case when gdbserver cannot resolve a network name. gdb/doc/ChangeLog: 2018-07-11 Sergio Durigan Junior <sergiodj@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> Paul Fertser <fercerpav@gmail.com> Tsutomu Seki <sekiriki@gmail.com> * gdb.texinfo (Remote Connection Commands): Add explanation about new IPv6 support. Add new connection prefixes. |
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Tom Tromey
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d7e15655a4 |
Remove ptid_equal
Remove ptid_equal in favor of using "==". gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_equal): Remove. * common/ptid.h (ptid_equal): Don't declare. * ada-tasks.c: Update. * breakpoint.c: Update. * common/agent.c: Update. * corelow.c: Update. * darwin-nat-info.c: Update. * darwin-nat.c: Update. * dcache.c: Update. * dtrace-probe.c: Update. * dummy-frame.c: Update. * fbsd-nat.c: Update. * frame.c: Update. * gdbthread.h: Update. * gnu-nat.c: Update. * go32-nat.c: Update. * inf-loop.c: Update. * inf-ptrace.c: Update. * infcall.c: Update. * infcmd.c: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-thread-db.c: Update. * mi/mi-cmd-var.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * nto-procfs.c: Update. * ppc-linux-tdep.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-record-btrace.c: Update. * python/py-record.c: Update. * ravenscar-thread.c: Update. * regcache.c: Update. * remote-sim.c: Update. * remote.c: Update. * sol-thread.c: Update. * solib.c: Update. * target.c: Update. * tui/tui-stack.c: Update. * varobj.c: Update. * windows-nat.c: Update. * windows-tdep.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * win32-low.c: Update. |
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Tom Tromey
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e38504b392 |
Remove ptid_get_lwp
This removes ptid_get_lwp in favor of calling the ptid_t::lwp method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_lwp): Remove. * common/ptid.h (ptid_get_lwp): Don't declare. * aarch64-linux-nat.c: Update. * ada-tasks.c: Update. * aix-thread.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * corelow.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gnu-nat.c: Update. * i386-cygwin-tdep.c: Update. * i386-gnu-nat.c: Update. * i386-linux-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * mips-linux-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * obsd-nat.c: Update. * ppc-fbsd-nat.c: Update. * ppc-linux-nat.c: Update. * procfs.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * remote.c: Update. * s390-linux-nat.c: Update. * sol-thread.c: Update. * sol2-tdep.c: Update. * spu-linux-nat.c: Update. * x86-linux-nat.c: Update. * xtensa-linux-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * thread-db.c: Update. |
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Tom Tromey
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e99b03dcf4 |
Remove ptid_get_pid
This removes ptid_get_pid in favor of calling the ptid_t::pid method. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.c (ptid_get_pid): Remove. * common/ptid.h (ptid_get_pid): Don't declare. * aarch64-linux-nat.c: Update. * ada-lang.c: Update. * aix-thread.c: Update. * alpha-bsd-nat.c: Update. * amd64-fbsd-nat.c: Update. * amd64-linux-nat.c: Update. * arm-linux-nat.c: Update. * arm-nbsd-nat.c: Update. * auxv.c: Update. * break-catch-syscall.c: Update. * breakpoint.c: Update. * bsd-uthread.c: Update. * corelow.c: Update. * ctf.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * fbsd-tdep.c: Update. * gcore.c: Update. * gnu-nat.c: Update. * hppa-nbsd-nat.c: Update. * hppa-obsd-nat.c: Update. * i386-fbsd-nat.c: Update. * ia64-linux-nat.c: Update. * inf-ptrace.c: Update. * infcmd.c: Update. * inferior.c: Update. * inferior.h: Update. * inflow.c: Update. * infrun.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-tdep.c: Update. * linux-thread-db.c: Update. * m68k-bsd-nat.c: Update. * mi/mi-interp.c: Update. * mi/mi-main.c: Update. * mips-linux-nat.c: Update. * mips-nbsd-nat.c: Update. * mips64-obsd-nat.c: Update. * nat/aarch64-linux-hw-point.c: Update. * nat/aarch64-linux.c: Update. * nat/linux-btrace.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nat/x86-linux-dregs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * ppc-linux-nat.c: Update. * ppc-nbsd-nat.c: Update. * ppc-obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * python/py-inferior.c: Update. * python/py-infthread.c: Update. * ravenscar-thread.c: Update. * record.c: Update. * remote-sim.c: Update. * remote.c: Update. * rs6000-nat.c: Update. * s390-linux-nat.c: Update. * sh-nbsd-nat.c: Update. * sol-thread.c: Update. * sparc-nat.c: Update. * sparc64-tdep.c: Update. * spu-linux-nat.c: Update. * spu-tdep.c: Update. * target-debug.h: Update. * target.c: Update. * thread.c: Update. * tid-parse.c: Update. * tracefile-tfile.c: Update. * vax-bsd-nat.c: Update. * windows-nat.c: Update. * x86-linux-nat.c: Update. * x86-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * linux-mips-low.c: Update. * lynx-low.c: Update. * mem-break.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * server.c: Update. * spu-low.c: Update. * target.c: Update. * tracepoint.c: Update. |
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Tom Tromey
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fd79271bd9 |
Remove ptid_build
This removes ptid_build in favor of simply calling the ptid_t constructor directly. gdb/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * common/ptid.h (ptid_build): Don't declare. * common/ptid.c (ptid_build): Remove. * aix-thread.c: Update. * bsd-kvm.c: Update. * bsd-uthread.c: Update. * common/agent.c: Update. * common/ptid.c: Update. * common/ptid.h: Update. * corelow.c: Update. * darwin-nat.c: Update. * fbsd-nat.c: Update. * gnu-nat.c: Update. * linux-fork.c: Update. * linux-nat.c: Update. * linux-thread-db.c: Update. * nat/linux-osdata.c: Update. * nat/linux-procfs.c: Update. * nto-procfs.c: Update. * obsd-nat.c: Update. * proc-service.c: Update. * procfs.c: Update. * ravenscar-thread.c: Update. * remote-sim.c: Update. * remote.c: Update. * sol-thread.c: Update. * target.c: Update. * windows-nat.c: Update. gdb/gdbserver/ChangeLog 2018-07-03 Tom Tromey <tom@tromey.com> * linux-low.c: Update. * lynx-low.c: Update. * nto-low.c: Update. * remote-utils.c: Update. * spu-low.c: Update. * thread-db.c: Update. * win32-low.c: Update. |
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Stan Cox
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c12a508964 |
Add client_state struct.
Collect per client specific global data items into struct client_state, which is similar in purpose to remote.c::remote_state. gdbserver/ChangeLog * server.h (struct client_state): New. * server.c (cont_thread, general_thread, multi_process) (report_fork_events, report_vfork_events, report_exec_events) (report_thread_events, swbreak_feature, hwbreak_feature) (vCont_supported, disable_randomization, pass_signals) (program_signals, program_signals_p, last_status, last_ptid, own_buf): Moved to client_state. * remote-utils.c (remote_debug, noack_mode) (transport_is_reliable): Moved to client_state. * tracepoint.c (current_traceframe): Moved to client_state. Update all callers. * server.c, remote-utils.c, tracepoint.c, fork-child.c, linux-low.c, remote-utils.h, target.c: Use client_state. |
||
|
Joel Brobecker
|
e2882c8578 |
Update copyright year range in all GDB files
gdb/ChangeLog:
Update copyright year range in all GDB files
|
||
|
Yao Qi
|
29f9a56737 |
Fix build with GCC 8: strncpy -> memcpy
Recent gcc 8 trunk emits the warning below,
../../../binutils-gdb/gdb/gdbserver/remote-utils.c:1204:14: error: ‘char* strncpy(char*, const char*, size_t)’ output truncated before terminating nul copying 6 bytes from a string of the same length [-Werror=stringop-truncation]
strncpy (buf, "watch:", 6);
~~~~~~~~^~~~~~~~~~~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1118:15: error: ‘char* strncpy(char*, const char*, size_t)’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
strncpy (cmdtype1 + 1, cmdtype, len - 1);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1110:16: note: length computed here
len = strlen (cmdtype);
~~~~~~~^~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1120:15: error: ‘char* strncpy(char*, const char*, size_t)’ specified bound depends on the length of the source argument [-Werror=stringop-overflow=]
strncpy (cmdtype2, cmdtype, len - 1);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~
../../binutils-gdb/gdb/cli/cli-decode.c:1110:16: note: length computed here
len = strlen (cmdtype);
~~~~~~~^~~~~~~~~
../../binutils-gdb/gdb/cp-namespace.c:1071:11: error: ‘char* strncpy(char*, const char*, size_t)’ output truncated before terminating nul copying 2 bytes from a string of the same length [-Werror=stringop-truncation]
strncpy (full_name + scope_length, "::", 2);
~~~~~~~~^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
This patch fixes it by using memcpy instead of strncpy.
gdb:
2017-11-22 Yao Qi <yao.qi@linaro.org>
* cli/cli-decode.c (help_list): Use memcpy instead of strncpy.
* cp-namespace.c (cp_lookup_transparent_type_loop): Likewise.
gdb/gdbserver:
2017-11-22 Yao Qi <yao.qi@linaro.org>
* remote-utils.c (prepare_resume_reply): Use memcpy.
|
||
|
Pedro Alves
|
e849ea896b |
GDBserver: Fix ignored Ctrl-C after reconnection
This fixes the issue reported by Dmitry Antipov <dantipov@nvidia.com>
here:
https://sourceware.org/ml/gdb/2017-10/msg00048.html
The problem is that GDBserver stops listening to Ctrl-C/interrupt
requests if you disconnect and reconnect back.
Dmitry wrote:
~~~
Currently gdbserver installs SIGIO handler just once, in
initialize_async_io() called from captured_main(), and this handler is
removed when remote_desc is closed in remote_close(). Next, when a
new instance of remote_desc is fetched from accept() and has '\003'
arrived, input_interrupt() is never called because it is not
registered as SIGIO handler.
~~~
The fix here is not remove the SIGIO handler in the first place, thus
going back to the original before-first-connection state.
(I haven't gone back to try it, but I think this was a regression
caused by commit
|
||
|
Pedro Alves
|
726e13564b |
Assume termios is available, remove support for termio and sgtty
This commit garbage collects the termio and sgtty support. GDB's terminal handling code still has support for the old termio and sgtty interfaces in addition to termios. However, I think it's pretty safe to assume that for a long, long time, Unix-like systems provide termios. GNU/Linux, Solaris, Cygwin, AIX, DJGPP, macOS and the BSDs all have had termios.h for many years. Looking around the web, I found discussions about FreeBSD folks trying to get rid of old sgtty.h a decade ago: https://lists.freebsd.org/pipermail/freebsd-hackers/2007-March/019983.html So I think support for termio and sgtty in GDB is just dead code that is never compiled anywhere and is just getting in the way. For example, serial_noflush_set_tty_state and the raw<->cooked concerns mentioned in inflow.c only exist because of sgtty (see hardwire_noflush_set_tty_state). Regtested on GNU/Linux. Confirmed that I can still build Solaris, DJGPP and AIX GDB and that the resulting GDBs still include the termios.h-guarded code. Confirmed mingw-w64 GDB still builds and skips the termios.h-guarded code. gdb/ChangeLog: 2017-11-06 Pedro Alves <palves@redhat.com> * Makefile.in (SER_HARDWIRE): Update comment. (HFILES_NO_SRCDIR): Remove gdb_termios.h. * common/gdb_termios.h: Delete file. * common/job-control.c: Include termios.h and unistd.h instead of gdb_termios.h. (gdb_setpgid): Remove HAVE_TERMIOS || TIOCGPGRP preprocessor check. (have_job_control): Check HAVE_TERMIOS_H instead of HAVE_TERMIOS. Remove sgtty code. * configure.ac: No longer check for termio.h and sgtty.h. * configure: Regenerate. * inflow.c: Include termios.h instead of gdb_termios.h. Replace PROCESS_GROUP_TYPE checks with HAVE_TERMIOS_H checks throughout. Replace PROCESS_GROUP_TYPE references with pid_t references throughout. (gdb_getpgrp): Delete. (set_initial_gdb_ttystate): Use tcgetpgrp instead of gdb_getpgrp. (child_terminal_inferior): Remove comment. Remove sgtty code. (child_terminal_ours_1): Use tcgetpgrp directly instead of gdb_getpgrp. Use serial_set_tty_state instead aof serial_noflush_set_tty_state. Remove sgtty code. * inflow.h: Include unistd.h instead of gdb_termios.h. Replace PROCESS_GROUP_TYPE check with HAVE_TERMIOS_H check. (inferior_process_group): Now returns pid_t. * ser-base.c (ser_base_noflush_set_tty_state): Delete. * ser-base.h (ser_base_noflush_set_tty_state): Delete. * ser-event.c (serial_event_ops): Update. * ser-go32.c (dos_noflush_set_tty_state): Delete. (dos_ops): Update. * ser-mingw.c (hardwire_ops, tty_ops, pipe_ops, tcp_ops): Update. * ser-pipe.c (pipe_ops): Update. * ser-tcp.c (tcp_ops): Update. * ser-unix.c: Include termios.h instead of gdb_termios.h. Remove HAVE_TERMIOS checks. [HAVE_TERMIO] (struct hardwire_ttystate): Delete. [HAVE_SGTTY] (struct hardwire_ttystate): Delete. (get_tty_state, set_tty_state): Drop termio and sgtty code, and assume termios. (hardwire_noflush_set_tty_state): Delete. (hardwire_print_tty_state, hardwire_drain_output) (hardwire_flush_output, hardwire_flush_input) (hardwire_send_break, hardwire_raw, hardwire_setbaudrate) (hardwire_setstopbits, hardwire_setparity): Drop termio and sgtty code, and assume termios. (hardwire_ops): Update. (_initialize_ser_hardwire): Remove HAVE_TERMIOS check. * serial.c (serial_noflush_set_tty_state): Delete. * serial.h (serial_noflush_set_tty_state): Delete. (serial_ops::noflush_set_tty_state): Delete. gdb/gdbserver/ChangeLog: 2017-11-06 Pedro Alves <palves@redhat.com> * configure.ac: No longer check for termio.h and sgtty.h. * configure: Regenerate. * remote-utils.c: Include termios.h instead of gdb_termios.h. (remote_open): Check HAVE_TERMIOS_H instead of HAVE_TERMIOS. Remove termio and sgtty code. |
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Pedro Alves
|
256642e857 |
Constify unpack_varlen_hex & fix fallout
I ran into non-const unpack_varlen_hex while working on something else, and decided to just fix it first. Ends up constifying a good deal of remote packet parsing. gdb/ChangeLog: 2017-09-29 Pedro Alves <palves@redhat.com> * common/rsp-low.c (unpack_varlen_hex): Constify. * common/rsp-low.h (unpack_varlen_hex): Constify. * linux-nat.c (linux_child_static_tracepoint_markers_by_strid): Constify. * remote.c (remote_set_permissions, read_ptid) (remote_current_thread, remote_get_threads_with_qthreadinfo) (remote_static_tracepoint_marker_at) (remote_static_tracepoint_markers_by_strid) (stop_reply_extract_thread, remote_parse_stop_reply): Constify. * tracepoint.c (parse_trace_status, parse_tracepoint_status) (parse_tracepoint_definition, parse_tsv_definition) (parse_static_tracepoint_marker_definition): Constify. * tracepoint.h (parse_static_tracepoint_marker_definition) (parse_trace_status, parse_tracepoint_status) (parse_tracepoint_definition, parse_tsv_definition): Constify. gdb/gdbserver/ChangeLog: 2017-09-29 Pedro Alves <palves@redhat.com> * ax.c (gdb_parse_agent_expr): Constify. * ax.h (gdb_parse_agent_expr): Constify. * mem-break.c (add_breakpoint_condition, add_breakpoint_commands): Constify. * mem-break.h (add_breakpoint_condition, add_breakpoint_commands): Constify. * remote-utils.c (hex_or_minus_one, read_ptid): Constify. * remote-utils.h (read_ptid): Constify. * server.c (handle_qxfer_exec_file, handle_query, handle_v_cont) (process_point_options, process_serial_event): Constify. * tracepoint.c (add_tracepoint_action, cmd_qtdp, cmd_qtdpsrc) (cmd_qtdv, cmd_qtenable_disable, cmd_qtro, cmd_qtframe, cmd_qtp) (cmd_qtbuffer): Constify. |
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|
Sergio Durigan Junior
|
75352e283f |
Use "switch_to_thread" more thoroughly on gdbserver
This is a technical debt that I left when I ported "switch_to_thread" to gdbserver. It's a simple patch that converts occurences of: current_thread = find_thread_ptid (ptid); to: switch_to_thread (ptid); This patch also converts a simple "if" to a "gdb_assert" on gdbserver's version of "switch_to_thread": gdb_assert (ptid != minus_one_ptid); This change makes the code more similar to what GDB already does. Regtested on BuildBot. gdb/gdbserver/ChangeLog: 2017-09-26 Sergio Durigan Junior <sergiodj@redhat.com> * gdbthread.h: Include "common-gdbthread.h". * inferiors.c (switch_to_thread): Use "gdb_assert" instead of "if" when validating the ptid. * remote-utils.c: Include "gdbthread.h". (prepare_resume_reply): Use "switch_to_thread". * target.c (done_accessing_memory): Likewise. |
||
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Sergio Durigan Junior
|
be628ab814 |
Create gdb_termios.h (and cleanup gdb/{,gdbserver/}terminal.h)
As requested, I'm sending this as a separate patch because it is ready to be included as-is. The idea here is that both gdb/terminal.h and gdb/gdbserver/terminal.h share the same code, which is responsible for setting a bunch of defines on based on the presence of termios.h and a few other headers. This simple patch just moves this common code to common/gdb_termios.h and makes the necessary adjustments on both GDB and gdbserver so that they can use this new header. It also implements the some header checks on common/common.m4. As a bonus, gdb/gdbserver/terminal.h can be removed because it's now empty. Built on x86_64, no regressions found. gdb/ChangeLog: 2017-04-12 Sergio Durigan Junior <sergiodj@redhat.com> * Makefile.in (HFILES_NO_SRCDIR): Add "common/gdb_termios.h". * common/common.m4: Check headers 'termios.h', 'termio.h' and 'sgtty.h'. * common/gdb_termios.h: New file, with parts of "terminal.h". * inflow.c: Include "gdb_termios.h". * ser-unix.c: Include "gdb_termios.h". * terminal.h: Move terminal-related defines to "common/gdb_termios.h". gdb/gdbserver/ChangeLog: 2017-04-12 Sergio Durigan Junior <sergiodj@redhat.com> * remote-utils.c: Include "gdb_termios.h" instead of "terminal.h". * terminal.h: Delete file. |
||
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Pedro Alves
|
fb32b4f700 |
-Wwrite-strings: gdbserver's 'port' parsing
-Wwrite-strings flags this assignment as requiring a cast:
port = STDIO_CONNECTION_NAME;
because 'port' is a "char *", and STDIO_CONNECTION_NAME is a string
literal.
gdb/gdbserver/ChangeLog:
2017-04-05 Pedro Alves <palves@redhat.com>
* remote-utils.c (remote_prepare, remote_open): Constify.
* remote-utils.h (remote_prepare, remote_open): Constify.
* server.c (captured_main): Constify 'port' handling.
|
||
|
Joel Brobecker
|
61baf725ec |
update copyright year range in GDB files
This applies the second part of GDB's End of Year Procedure, which
updates the copyright year range in all of GDB's files.
gdb/ChangeLog:
Update copyright year range in all GDB files.
|
||
|
Pedro Alves
|
4eefa7bcf2 |
gdbserver: Use debug_printf for debug output
gdb/gdbserver/ChangeLog: 2016-11-23 Pedro Alves <palves@redhat.com> * linux-low.c (check_zombie_leaders): Use debug_printf for debug output. * notif.c (handle_notif_ack, notif_event_enque): Likewise. * remote-utils.c (putpkt_binary_1, readchar, getpkt): Use debug_printf and debug_flush for debug output. * server.c (handle_general_set): Likewise. * thread-db.c (try_thread_db_load): Use debug_printf for debug output. |
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|
Akash Trehan
|
c1da6748f5 |
Removed redundant line remote-utils.c
2016-09-02 Akash Trehan <akash.trehan123@gmail.com>
gdb/gdbserver/ChangeLog:
PR gdb/19495
* remote-utils.c (relocate_instruction): Remove redundant strcpy()
call writing data to own_buf.
|
||
|
Marcin Kościelnicki
|
28170b88cc |
gdbserver: Handle 'v' packet while processing qSymbol.
On powerpc64, qSymbol query may require gdb to read a function descriptor, sending a vFile packet to gdbserver. Thus, we need to handle 'v' packet in look_up_one_symbol. vFile replies may be quite long, and require reallocating own_buf. Since handle_v_requests assumes the buffer is the static global own_buf from server.c and reallocates it, we need to make own_buf global and use it from look_up_one_symbol instead of using our own auto variable. I've also done the same change in relocate_instruction, just in case. On gdb side, in remote_check_symbols, rs->buf may be clobbered by vFile handling, yet we need its contents for the reply (the symbol name is stored there). Allocate a new buffer instead. This broke fast tracepoints on powerpc64, due to errors in reading IPA symbols. gdb/ChangeLog: * remote.c (remote_check_symbols): Allocate own buffer for reply. gdbserver/ChangeLog: * remote-utils.c (look_up_one_symbol): Remove own_buf, handle 'v' packets. (relocate_instruction): Remove own_buf. * server.c (own_buf): Make global. (handle_v_requests): Make global. * server.h (own_buf): New declaration. (handle_v_requests): New prototype. |
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|
Yao Qi
|
8b20733984 |
[GDBserver] Block and unblock SIGIO
Nowadays, GDBserver disables async io (by ignoring SIGIO) when process a serial event, and enables async io (by installing signal handler) when resume the inferior and wait. GDBserver may miss SIGIO (by interrupt) and doesn't process SIGIO in time, which is shown by gdb.base/interrupt-noterm.exp. In the test, GDB sends "continue &" and then "interrupt". if '\003' arrives at a period between GDBserver receives vCont;c and enables async io, SIGIO is ignored because signal handler isn't installed. GDBserver waits for the inferior and can not notice '\003' until it returns from wait. This patch changes the code to install SIGIO handler early, but block and unblock SIGIO as needed. In this way, we don't remove SIGIO handler, so SIGIO can't be ignored. However, GDBserver needs to remove the signal handler when connection is closed. gdb/gdbserver: 2016-01-26 Yao Qi <yao.qi@linaro.org> * remote-utils.c (remote_close) [!USE_WIN32API]: Ignore SIGIO. (unblock_async_io): Rename to ... (block_unblock_async_io): ... it. New function. (enable_async_io): Don't install SIGIO handler. Unblock it instead. (disable_async_io): Don't ignore SIGIO. Block it instead. (initialize_async_io): Install SIGIO handler. Don't call unblock_async_io. |
||
|
Yao Qi
|
18879fef17 |
[GDBserver] Check input interrupt after reading in a packet
GDBserver may read some packet together with '\003' in one go. We've already checked '\003' first when reading packet by my patch, Check input interrupt first when reading packet https://sourceware.org/ml/gdb-patches/2016-01/msg00057.html but if we don't check '\003' *after* each packet, the interrupt will be processed next time GDBserver reads from the buffer, so that the interrupt isn't processed in time. For example, GDB sends vCont;c and interrupt (see gdb.base/interrupt-noterm.exp), we'll resume the inferior and wait once packet vCont;c is seen. If we don't check the interrupt character after vCont;c packet, interrupt character will stay in the buffer unattended until GDBserver returns from the wait, which may take a while. Note that since we've read '\003' from file descriptor, SIGIO signal handler input_interrupt doesn't help either. This issue can be exposed by hacking the end of getpkt like @@ -1041,6 +1050,9 @@ getpkt (char *buf) } } + if (readchar_bufcnt > 0) + gdb_assert (*readchar_bufp != '\003'); + return bp - buf; } and this can trigger internal error, (gdb) PASS: gdb.base/interrupt-noterm.exp: interrupt Remote connection closed^M (gdb) FAIL: gdb.base/interrupt-noterm.exp: inferior received SIGINT Remote debugging from host 10.2.206.40^M /home/yao/SourceCode/gnu/gdb/git/gdb/gdbserver/remote-utils.c:1054: A problem internal to GDBserver has been detected.^M getpkt: Assertion `*readchar_bufp != '\003'' failed.^M This patch is to peek the buffer, if it is '\003', consume it and call *the_target->request_interrupt. gdb/gdbserver: 2016-01-26 Yao Qi <yao.qi@linaro.org> * remote-utils.c (getpkt): If the buffer isn't empty, and the first character is '\003', call *the_target->request_interrupt. |
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|
Yao Qi
|
a0f8e08a3c |
Remove new_thread_notify and dead_thread_notify
They were added by PATCH: Multithreaded debugging for gdbserver https://sourceware.org/ml/gdb-patches/2002-06/msg00157.html but as a no-op, and the last usage of them was removed by [gdbserver/RFC/RFA] Implement multiprocess extensions, add linux multiproces support. https://sourceware.org/ml/gdb-patches/2009-03/msg00667.html This patch is to remove them. gdb/gdbserver: 2016-01-25 Yao Qi <yao.qi@linaro.org> * remote-utils.c (new_thread_notify): Remove. (dead_thread_notify): Likewise. * remote-utils.h (new_thread_notify): Remove declaration. (dead_thread_notify): Likewise. |
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|
Josh Stone
|
82075af2c1 |
Implement 'catch syscall' for gdbserver
This adds a new QCatchSyscalls packet to enable 'catch syscall', and new stop reasons "syscall_entry" and "syscall_return" for those events. It is currently only supported on Linux x86 and x86_64. gdb/ChangeLog: 2016-01-12 Josh Stone <jistone@redhat.com> Philippe Waroquiers <philippe.waroquiers@skynet.be> * NEWS (Changes since GDB 7.10): Mention QCatchSyscalls and the syscall_entry and syscall_return stop reasons. Mention GDB support for remote catch syscall. * remote.c (PACKET_QCatchSyscalls): New enum. (remote_set_syscall_catchpoint): New function. (remote_protocol_features): New element for QCatchSyscalls. (remote_parse_stop_reply): Parse syscall_entry/return stops. (init_remote_ops): Install remote_set_syscall_catchpoint. (_initialize_remote): Config QCatchSyscalls. * linux-nat.h (struct lwp_info) <syscall_state>: Comment typo. gdb/doc/ChangeLog: 2016-01-12 Josh Stone <jistone@redhat.com> Philippe Waroquiers <philippe.waroquiers@skynet.be> * gdb.texinfo (Remote Configuration): List the QCatchSyscalls packet. (Stop Reply Packets): List the syscall entry and return stop reasons. (General Query Packets): Describe QCatchSyscalls, and add it to the table and the detailed list of stub features. gdb/gdbserver/ChangeLog: 2016-01-12 Josh Stone <jistone@redhat.com> Philippe Waroquiers <philippe.waroquiers@skynet.be> * inferiors.h: Include "gdb_vecs.h". (struct process_info): Add syscalls_to_catch. * inferiors.c (remove_process): Free syscalls_to_catch. * remote-utils.c (prepare_resume_reply): Report syscall_entry and syscall_return stops. * server.h (UNKNOWN_SYSCALL, ANY_SYSCALL): Define. * server.c (handle_general_set): Handle QCatchSyscalls. (handle_query): Report support for QCatchSyscalls. * target.h (struct target_ops): Add supports_catch_syscall. (target_supports_catch_syscall): New macro. * linux-low.h (struct linux_target_ops): Add get_syscall_trapinfo. (struct lwp_info): Add syscall_state. * linux-low.c (handle_extended_wait): Mark syscall_state as an entry. Maintain syscall_state and syscalls_to_catch across exec. (get_syscall_trapinfo): New function, proxy to the_low_target. (linux_low_ptrace_options): Enable PTRACE_O_TRACESYSGOOD. (linux_low_filter_event): Toggle syscall_state entry/return for syscall traps, and set it ignored for all others. (gdb_catching_syscalls_p): New function. (gdb_catch_this_syscall_p): New function. (linux_wait_1): Handle SYSCALL_SIGTRAP. (linux_resume_one_lwp_throw): Add PTRACE_SYSCALL possibility. (linux_supports_catch_syscall): New function. (linux_target_ops): Install it. * linux-x86-low.c (x86_get_syscall_trapinfo): New function. (the_low_target): Install it. gdb/testsuite/ChangeLog: 2016-01-12 Josh Stone <jistone@redhat.com> Philippe Waroquiers <philippe.waroquiers@skynet.be> * gdb.base/catch-syscall.c (do_execve): New variable. (main): Conditionally trigger an execve. * gdb.base/catch-syscall.exp: Enable testing for remote targets. (test_catch_syscall_execve): New, check entry/return across execve. (do_syscall_tests): Call test_catch_syscall_execve. |
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|
Mike Frysinger
|
5b3da067f0 |
gdbserver: fix various warnings
Delete unused funcs, update old prototypes, and mark local funcs as static. This doesn't cover all missing prototype warnings. |
||
|
Yao Qi
|
5a0dd67a45 |
Check input interrupt first when reading packet
Hi, I see timeout in one of several runs of random-signal.exp like this, $ (set -e; while true; do make check RUNTESTFLAGS="--target_board=native-gdbserver random-signal.exp"; done) In about every five runs, we can see a fail, PASS: gdb.base/random-signal.exp: continue ^CFAIL: gdb.base/random-signal.exp: stop with control-c (timeout) after some investigation, I find '\003' may be discarded by GDBserver when it is expecting '$'. In GDB side, both normal packets and '\003' are sent via function send, but GDBserver may receive them at any time, that is to say, in the receive buffer in GDBserver, '\003' may appear before or after normal packet. However, current GDBserver doesn't handle this case. With this patch applied, I don't see this fail in multiple runs. Although there is still timeout fail, that is a different problem, the next patch will fix it. gdb/gdbserver: 2016-01-08 Yao Qi <yao.qi@linaro.org> * remote-utils.c (getpkt): If c is '\003', call target hook request_interrupt. |
||
|
Joel Brobecker
|
618f726fcb |
GDB copyright headers update after running GDB's copyright.py script.
gdb/ChangeLog:
Update year range in copyright notice of all files.
|
||
|
Pedro Alves
|
fddedbe665 |
gdbserver: don't exit until GDB disconnects
When testing with "target remote" with "maint set target-non-stop on",
we regressions like this:
Running /home/pedro/gdb/mygit/build/../src/gdb/testsuite/gdb.threads/continue-pending-after-query.exp ...
FAIL: gdb.threads/continue-pending-after-query.exp: iter 4: continue until exit
FAIL: gdb.threads/continue-pending-after-query.exp: iter 6: continue until exit
FAIL: gdb.threads/continue-pending-after-query.exp: iter 10: continue until exit
=== gdb Summary ===
# of expected passes 28
# of unexpected failures 3
where gdb.log shows:
continue
Continuing.
Remote communication error. Target disconnected.: Connection reset by peer.
(gdb) FAIL: gdb.threads/continue-pending-after-query.exp: iter 4: continue until exit
Enabling gdb + gdbserver debug logs we see:
gdbserver: <<<< exiting linux_wait_1
gdbserver: handling possible serial event
gdbserver: Writing resume reply for LWP 11089.11089:0
gdbserver: handling possible serial event
gdbserver: GDBserver exiting
GDB: Packet received: OK
GDB: infrun: prepare_to_wait
GDB: Sending packet: $vStopped#55...Packet received: W0;process:2b51
GDB: Sending packet: $vStopped#55...Packet received: OK
GDB: infrun: target_wait (-1.0.0, status) =
GDB: infrun: -1.0.0 [Thread 0],
GDB: infrun: status->kind = no-resumed
GDB: Sending packet: $Hgp2b51.2b51#41...Remote connection closed
(gdb) FAIL: gdb.threads/continue-pending-after-query.exp: iter 1: continue until exit
Notice the "Packet received: W0;process:2b51" followed by
vStopped->OK.
That means the process exit notification was successfully sent to GDB
and GDB fetched it. That makes gdbserver exit, in
server.c:process_serial_event:
if (!extended_protocol && have_ran && !target_running ())
{
/* In non-stop, defer exiting until GDB had a chance to query
the whole vStopped list (until it gets an OK). */
if (QUEUE_is_empty (notif_event_p, notif_stop.queue))
{
/* Be transparent when GDB is connected through stdio -- no
need to spam GDB's console. */
if (!remote_connection_is_stdio ())
fprintf (stderr, "GDBserver exiting\n");
remote_close ();
exit (0);
}
}
However, GDB is still busy processing an earlier "no-resumed" event,
and sends a "Hg" packet, which errors out with "Remote connection
closed". IOW, it's not enough to wait for GDB to query the whole
vStopped list, gdbserver needs to wait until the exit event is really
processed.
The fix is to make gdbserver not disconnect until gdb does.
Tested on x86_64 Fedora, native gdbserver, remote + extended-remote +
with and without "maint set target-non-stop on".
gdb/gdbserver/ChangeLog:
2015-10-14 Pedro Alves <palves@redhat.com>
* remote-utils.c (readchar): Don't print "Got EOF" unless
debugging gdbserver.
* server.c (captured_main): Exit gdbserver if gdb disconnects when
in "target remote" mode and there are no processes left to debug.
(process_serial_event): Remove 'have_ran' static local and remove
logic that exits gdbserver in "target remote" mode.
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Pedro Alves
|
f2faf941ae |
Implement TARGET_WAITKIND_NO_RESUMED in the remote protocol
Testing with "maint set target-non-stop on" causes regressions in tests that rely on TARGET_WAITKIND_NO_RESUMED, which isn't modelled on the RSP. In real all-stop, gdbserver detects the situation and reporst error to GDB, and so the tests (e.g., gdb.threads/no-unwaited-for-left.exp) at fail quickly. But with "maint set target-non-stop on", GDB instead hangs forever waiting for a stop reply that never comes, and so the tests take longer to time out. This adds a new "N" stop reply packet that maps 1-1 to TARGET_WAITKIND_NO_RESUMED. gdb/ChangeLog: 2015-11-30 Pedro Alves <palves@redhat.com> PR 14618 * NEWS (New remote packets): Mention the N stop reply. * remote.c (remote_protocol_features): Add "no-resumed" entry. (remote_query_supported): Report no-resumed+ support. (remote_parse_stop_reply): Handle 'N'. (process_stop_reply): Handle TARGET_WAITKIND_NO_RESUMED. (remote_wait_as): Handle 'N' / TARGET_WAITKIND_NO_RESUMED. (_initialize_remote): Register "set/show remote no-resumed-stop-reply" commands. gdb/doc/ChangeLog: 2015-11-30 Pedro Alves <palves@redhat.com> PR 14618 * gdb.texinfo (Stop Reply Packets): Document the N stop reply. (Remote Configuration): Add the "set/show remote no-resumed-stop-reply" to the available settings table. (General Query Packets): Document the "no-resumed" qSupported feature. gdb/gdbserver/ChangeLog: 2015-11-30 Pedro Alves <palves@redhat.com> PR 14618 * linux-low.c (linux_wait_1): If the last resumed thread is gone, report TARGET_WAITKIND_NO_RESUMED. * remote-utils.c (prepare_resume_reply): Handle TARGET_WAITKIND_NO_RESUMED. * server.c (report_no_resumed): New global. (handle_query) <qSupported>: Handle "no-resumed+". Report "no-resumed+" support. (resume): When the target reports TARGET_WAITKIND_NO_RESUMED, only return error if the client doesn't support no-resumed events. (push_stop_notification): New function. (handle_target_event): Use it. Report TARGET_WAITKIND_NO_RESUMED events if the client supports them. gdb/testsuite/ChangeLog: 2015-11-30 Pedro Alves <palves@redhat.com> * gdb.threads/no-unwaited-for-left.exp: Remove setup_kfail calls. |
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Pedro Alves
|
65706a29ba |
Remote thread create/exit events
When testing with "maint set target-non-stop on", a few threading-related tests expose an issue that requires new RSP packets. Say there are 3 threads running, 1-3. If GDB tries to stop thread 1, 2 and 3, and then waits for their stops, but meanwhile say, thread 2 exits, GDB hangs forever waiting for a stop for thread 2 that won't ever happen. This patch fixes the issue by adding support for thread exit events to the protocol. However, we don't want these always enabled, as they're useless most of the time, and would slow down remote debugging. So I made it so that GDB can enable/disable them, and then made gdb do that around the cases that need it, which currently is only infrun.c:stop_all_threads. In turn, if we have thread exit events, then the extra "thread x exited" traffic slows down attach-many-short-lived-threads.exp enough that gdb has trouble keeping up with new threads that are spawned while gdb tries to stop existing ones. To fix that I added support for the counterpart thread created events too. Enabling those when we try to stop threads ensures that new threads never get a chance to themselves start new threads, killing the race. gdb/doc/ChangeLog: 2015-11-30 Pedro Alves <palves@redhat.com> * gdb.texinfo (Remote Configuration): List "set/show remote thread-events" command in configuration table. (Stop Reply Packets): Document "T05 create" stop reason and 'w' stop reply. (General Query Packets): Document QThreadEvents packet. Document QThreadEvents qSupported feature. gdb/gdbserver/ChangeLog: 2015-11-30 Pedro Alves <palves@redhat.com> * linux-low.c (handle_extended_wait): Assert that the LWP's waitstatus is TARGET_WAITKIND_IGNORE. If GDB wants to hear about thread create events, leave the new child's status pending. (linux_low_filter_event): If GDB wants to hear about thread exit events, leave the LWP marked dead and don't delete it. (linux_wait_for_event_filtered): Don't check for thread exit. (filter_exit_event): New function. (linux_wait_1): Use it, when returning an exit event. (linux_resume_one_lwp_throw): Assert that the LWP's waitstatus is TARGET_WAITKIND_IGNORE. * remote-utils.c (prepare_resume_reply): Handle TARGET_WAITKIND_THREAD_CREATED and TARGET_WAITKIND_THREAD_EXITED. * server.c (report_thread_events): New global. (handle_general_set): Handle QThreadEvents. (handle_query) <qSupported>: Handle and report QThreadEvents+; (handle_target_event): Handle TARGET_WAITKIND_THREAD_CREATED and TARGET_WAITKIND_THREAD_EXITED. * server.h (report_thread_events): Declare. gdb/ChangeLog: 2015-11-30 Pedro Alves <palves@redhat.com> * NEWS (New commands): Mention "set/show remote thread-events" commands. (New remote packets): Mention thread created/exited stop reasons and QThreadEvents packet. * infrun.c (disable_thread_events): New function. (stop_all_threads): Disable/enable thread create/exit events. Handle TARGET_WAITKIND_THREAD_EXITED. (handle_inferior_event_1): Handle TARGET_WAITKIND_THREAD_CREATED and TARGET_WAITKIND_THREAD_EXITED. * remote.c (remove_child_of_pending_fork): Also remove threads of threads that have TARGET_WAITKIND_THREAD_EXITED events. (remote_parse_stop_reply): Handle "create" magic register. Handle 'w' stop reply. (initialize_remote): Install remote_thread_events as to_thread_events target hook. (remote_thread_events): New function. * target-delegates.c: Regenerate. * target.c (target_thread_events): New function. * target.h (struct target_ops) <to_thread_events>: New field. (target_thread_events): Declare. * target/waitstatus.c (target_waitstatus_to_string): Handle TARGET_WAITKIND_THREAD_CREATED and TARGET_WAITKIND_THREAD_EXITED. * target/waitstatus.h (enum target_waitkind) <TARGET_WAITKIND_THREAD_CREATED, TARGET_WAITKIND_THREAD_EXITED): New values. |
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Simon Marchi
|
224c3ddb89 |
Add casts to memory allocation related calls
Most allocation functions (if not all) return a void* pointing to the allocated memory. In C++, we need to add an explicit cast when assigning the result to a pointer to another type (which is the case more often than not). The content of this patch is taken from Pedro's branch, from commit "(mostly) auto-generated patch to insert casts needed for C++". I validated that the changes make sense and manually reflowed the code to make it respect the coding style. I also found multiple places where I could use XNEW/XNEWVEC/XRESIZEVEC/etc. Thanks a lot to whoever did that automated script to insert casts, doing it completely by hand would have taken a ridiculous amount of time. Only files built on x86 with --enable-targets=all are modified. This means that all other -nat.c files are untouched and will have to be dealt with later by using appropiate compilers. Or maybe we can try to build them with a regular g++ just to know where to add casts, I don't know. I built-tested this with --enable-targets=all and reg-tested. Here's the changelog entry, which was not too bad to make despite the size, thanks to David Malcom's script. I fixed some bits by hand, but there might be some wrong parts left (hopefully not). gdb/ChangeLog: * aarch64-linux-tdep.c (aarch64_stap_parse_special_token): Add cast to allocation result assignment. * ada-exp.y (write_object_renaming): Likewise. (write_ambiguous_var): Likewise. (ada_nget_field_index): Likewise. (write_var_or_type): Likewise. * ada-lang.c (ada_decode_symbol): Likewise. (ada_value_assign): Likewise. (value_pointer): Likewise. (cache_symbol): Likewise. (add_nonlocal_symbols): Likewise. (ada_name_for_lookup): Likewise. (symbol_completion_add): Likewise. (ada_to_fixed_type_1): Likewise. (ada_get_next_arg): Likewise. (defns_collected): Likewise. * ada-lex.l (processId): Likewise. (processString): Likewise. * ada-tasks.c (read_known_tasks_array): Likewise. (read_known_tasks_list): Likewise. * ada-typeprint.c (decoded_type_name): Likewise. * addrmap.c (addrmap_mutable_create_fixed): Likewise. * amd64-tdep.c (amd64_push_arguments): Likewise. (amd64_displaced_step_copy_insn): Likewise. (amd64_classify_insn_at): Likewise. (amd64_relocate_instruction): Likewise. * amd64obsd-tdep.c (amd64obsd_sigtramp_p): Likewise. * arch-utils.c (simple_displaced_step_copy_insn): Likewise. (initialize_current_architecture): Likewise. * arm-linux-tdep.c (arm_stap_parse_special_token): Likewise. * arm-symbian-tdep.c (arm_symbian_osabi_sniffer): Likewise. * arm-tdep.c (arm_exidx_new_objfile): Likewise. (arm_push_dummy_call): Likewise. (extend_buffer_earlier): Likewise. (arm_adjust_breakpoint_address): Likewise. (arm_skip_stub): Likewise. * auto-load.c (filename_is_in_pattern): Likewise. (maybe_add_script_file): Likewise. (maybe_add_script_text): Likewise. (auto_load_objfile_script_1): Likewise. * auxv.c (ld_so_xfer_auxv): Likewise. * ax-general.c (new_agent_expr): Likewise. (grow_expr): Likewise. (ax_reg_mask): Likewise. * bcache.c (bcache_full): Likewise. * breakpoint.c (program_breakpoint_here_p): Likewise. * btrace.c (parse_xml_raw): Likewise. * build-id.c (build_id_to_debug_bfd): Likewise. * buildsym.c (end_symtab_with_blockvector): Likewise. * c-exp.y (string_exp): Likewise. (qualified_name): Likewise. (write_destructor_name): Likewise. (operator_stoken): Likewise. (parse_number): Likewise. (scan_macro_expansion): Likewise. (yylex): Likewise. (c_print_token): Likewise. * c-lang.c (c_get_string): Likewise. (emit_numeric_character): Likewise. * charset.c (wchar_iterate): Likewise. * cli/cli-cmds.c (complete_command): Likewise. (make_command): Likewise. * cli/cli-dump.c (restore_section_callback): Likewise. (restore_binary_file): Likewise. * cli/cli-interp.c (cli_interpreter_exec): Likewise. * cli/cli-script.c (execute_control_command): Likewise. * cli/cli-setshow.c (do_set_command): Likewise. * coff-pe-read.c (add_pe_forwarded_sym): Likewise. (read_pe_exported_syms): Likewise. * coffread.c (coff_read_struct_type): Likewise. (coff_read_enum_type): Likewise. * common/btrace-common.c (btrace_data_append): Likewise. * common/buffer.c (buffer_grow): Likewise. * common/filestuff.c (gdb_fopen_cloexec): Likewise. * common/format.c (parse_format_string): Likewise. * common/gdb_vecs.c (delim_string_to_char_ptr_vec_append): Likewise. * common/xml-utils.c (xml_escape_text): Likewise. * compile/compile-object-load.c (copy_sections): Likewise. (compile_object_load): Likewise. * compile/compile-object-run.c (compile_object_run): Likewise. * completer.c (filename_completer): Likewise. * corefile.c (read_memory_typed_address): Likewise. (write_memory_unsigned_integer): Likewise. (write_memory_signed_integer): Likewise. (complete_set_gnutarget): Likewise. * corelow.c (get_core_register_section): Likewise. * cp-name-parser.y (d_grab): Likewise. (allocate_info): Likewise. (cp_new_demangle_parse_info): Likewise. * cp-namespace.c (cp_scan_for_anonymous_namespaces): Likewise. (cp_lookup_symbol_in_namespace): Likewise. (lookup_namespace_scope): Likewise. (find_symbol_in_baseclass): Likewise. (cp_lookup_nested_symbol): Likewise. (cp_lookup_transparent_type_loop): Likewise. * cp-support.c (copy_string_to_obstack): Likewise. (make_symbol_overload_list): Likewise. (make_symbol_overload_list_namespace): Likewise. (make_symbol_overload_list_adl_namespace): Likewise. (first_component_command): Likewise. * cp-valprint.c (cp_print_value): Likewise. * ctf.c (ctf_xfer_partial): Likewise. * d-exp.y (StringExp): Likewise. * d-namespace.c (d_lookup_symbol_in_module): Likewise. (lookup_module_scope): Likewise. (find_symbol_in_baseclass): Likewise. (d_lookup_nested_symbol): Likewise. * dbxread.c (find_stab_function_addr): Likewise. (read_dbx_symtab): Likewise. (dbx_end_psymtab): Likewise. (cp_set_block_scope): Likewise. * dcache.c (dcache_alloc): Likewise. * demangle.c (_initialize_demangler): Likewise. * dicos-tdep.c (dicos_load_module_p): Likewise. * dictionary.c (dict_create_hashed_expandable): Likewise. (dict_create_linear_expandable): Likewise. (expand_hashtable): Likewise. (add_symbol_linear_expandable): Likewise. * dwarf2-frame.c (add_cie): Likewise. (add_fde): Likewise. (dwarf2_build_frame_info): Likewise. * dwarf2expr.c (dwarf_expr_grow_stack): Likewise. (dwarf_expr_fetch_address): Likewise. (add_piece): Likewise. (execute_stack_op): Likewise. * dwarf2loc.c (chain_candidate): Likewise. (dwarf_entry_parameter_to_value): Likewise. (read_pieced_value): Likewise. (write_pieced_value): Likewise. * dwarf2read.c (dwarf2_read_section): Likewise. (add_type_unit): Likewise. (read_comp_units_from_section): Likewise. (fixup_go_packaging): Likewise. (dwarf2_compute_name): Likewise. (dwarf2_physname): Likewise. (create_dwo_unit_in_dwp_v1): Likewise. (create_dwo_unit_in_dwp_v2): Likewise. (read_func_scope): Likewise. (read_call_site_scope): Likewise. (dwarf2_attach_fields_to_type): Likewise. (process_structure_scope): Likewise. (mark_common_block_symbol_computed): Likewise. (read_common_block): Likewise. (abbrev_table_read_table): Likewise. (guess_partial_die_structure_name): Likewise. (fixup_partial_die): Likewise. (add_file_name): Likewise. (dwarf2_const_value_data): Likewise. (dwarf2_const_value_attr): Likewise. (build_error_marker_type): Likewise. (guess_full_die_structure_name): Likewise. (anonymous_struct_prefix): Likewise. (typename_concat): Likewise. (dwarf2_canonicalize_name): Likewise. (dwarf2_name): Likewise. (write_constant_as_bytes): Likewise. (dwarf2_fetch_constant_bytes): Likewise. (copy_string): Likewise. (parse_macro_definition): Likewise. * elfread.c (elf_symfile_segments): Likewise. (elf_rel_plt_read): Likewise. (elf_gnu_ifunc_resolve_by_cache): Likewise. (elf_gnu_ifunc_resolve_by_got): Likewise. (elf_read_minimal_symbols): Likewise. (elf_gnu_ifunc_record_cache): Likewise. * event-top.c (top_level_prompt): Likewise. (command_line_handler): Likewise. * exec.c (resize_section_table): Likewise. * expprint.c (print_subexp_standard): Likewise. * fbsd-tdep.c (fbsd_collect_regset_section_cb): Likewise. * findcmd.c (parse_find_args): Likewise. * findvar.c (address_from_register): Likewise. * frame.c (get_prev_frame_always): Likewise. * gdb_bfd.c (gdb_bfd_ref): Likewise. (get_section_descriptor): Likewise. * gdb_obstack.c (obconcat): Likewise. (obstack_strdup): Likewise. * gdbtypes.c (lookup_function_type_with_arguments): Likewise. (create_set_type): Likewise. (lookup_unsigned_typename): Likewise. (lookup_signed_typename): Likewise. (resolve_dynamic_union): Likewise. (resolve_dynamic_struct): Likewise. (add_dyn_prop): Likewise. (copy_dynamic_prop_list): Likewise. (arch_flags_type): Likewise. (append_composite_type_field_raw): Likewise. * gdbtypes.h (INIT_FUNC_SPECIFIC): Likewise. * gnu-v3-abi.c (gnuv3_rtti_type): Likewise. * go-exp.y (string_exp): Likewise. * go-lang.c (go_demangle): Likewise. * guile/guile.c (compute_scheme_string): Likewise. * guile/scm-cmd.c (gdbscm_parse_command_name): Likewise. (gdbscm_canonicalize_command_name): Likewise. * guile/scm-ports.c (ioscm_init_stdio_buffers): Likewise. (ioscm_init_memory_port): Likewise. (ioscm_reinit_memory_port): Likewise. * guile/scm-utils.c (gdbscm_gc_xstrdup): Likewise. (gdbscm_gc_dup_argv): Likewise. * h8300-tdep.c (h8300_push_dummy_call): Likewise. * hppa-tdep.c (internalize_unwinds): Likewise. (read_unwind_info): Likewise. * i386-cygwin-tdep.c (core_process_module_section): Likewise. (windows_core_xfer_shared_libraries): Likewise. * i386-tdep.c (i386_displaced_step_copy_insn): Likewise. (i386_stap_parse_special_token_triplet): Likewise. (i386_stap_parse_special_token_three_arg_disp): Likewise. * i386obsd-tdep.c (i386obsd_sigtramp_p): Likewise. * inf-child.c (inf_child_fileio_readlink): Likewise. * inf-ptrace.c (inf_ptrace_fetch_register): Likewise. (inf_ptrace_store_register): Likewise. * infrun.c (follow_exec): Likewise. (displaced_step_prepare_throw): Likewise. (save_stop_context): Likewise. (save_infcall_suspend_state): Likewise. * jit.c (jit_read_descriptor): Likewise. (jit_read_code_entry): Likewise. (jit_symtab_line_mapping_add_impl): Likewise. (finalize_symtab): Likewise. (jit_unwind_reg_get_impl): Likewise. * jv-exp.y (QualifiedName): Likewise. * jv-lang.c (get_java_utf8_name): Likewise. (type_from_class): Likewise. (java_demangle_type_signature): Likewise. (java_class_name_from_physname): Likewise. * jv-typeprint.c (java_type_print_base): Likewise. * jv-valprint.c (java_value_print): Likewise. * language.c (add_language): Likewise. * linespec.c (add_sal_to_sals_basic): Likewise. (add_sal_to_sals): Likewise. (decode_objc): Likewise. (find_linespec_symbols): Likewise. * linux-fork.c (fork_save_infrun_state): Likewise. * linux-nat.c (linux_nat_detach): Likewise. (linux_nat_fileio_readlink): Likewise. * linux-record.c (record_linux_sockaddr): Likewise. (record_linux_msghdr): Likewise. (Do): Likewise. * linux-tdep.c (linux_core_info_proc_mappings): Likewise. (linux_collect_regset_section_cb): Likewise. (linux_get_siginfo_data): Likewise. * linux-thread-db.c (try_thread_db_load_from_pdir_1): Likewise. (try_thread_db_load_from_dir): Likewise. (thread_db_load_search): Likewise. (info_auto_load_libthread_db): Likewise. * m32c-tdep.c (m32c_m16c_address_to_pointer): Likewise. (m32c_m16c_pointer_to_address): Likewise. * m68hc11-tdep.c (m68hc11_pseudo_register_write): Likewise. * m68k-tdep.c (m68k_get_longjmp_target): Likewise. * machoread.c (macho_check_dsym): Likewise. * macroexp.c (resize_buffer): Likewise. (gather_arguments): Likewise. (maybe_expand): Likewise. * macrotab.c (new_macro_key): Likewise. (new_source_file): Likewise. (new_macro_definition): Likewise. * mdebugread.c (parse_symbol): Likewise. (parse_type): Likewise. (parse_partial_symbols): Likewise. (psymtab_to_symtab_1): Likewise. * mem-break.c (default_memory_insert_breakpoint): Likewise. * mi/mi-cmd-break.c (mi_argv_to_format): Likewise. * mi/mi-main.c (mi_cmd_data_read_memory): Likewise. (mi_cmd_data_read_memory_bytes): Likewise. (mi_cmd_data_write_memory_bytes): Likewise. (mi_cmd_trace_frame_collected): Likewise. * mi/mi-parse.c (mi_parse_argv): Likewise. (mi_parse): Likewise. * minidebug.c (lzma_open): Likewise. (lzma_pread): Likewise. * mips-tdep.c (mips_read_fp_register_single): Likewise. (mips_print_fp_register): Likewise. * mipsnbsd-tdep.c (mipsnbsd_get_longjmp_target): Likewise. * mipsread.c (read_alphacoff_dynamic_symtab): Likewise. * mt-tdep.c (mt_register_name): Likewise. (mt_registers_info): Likewise. (mt_push_dummy_call): Likewise. * namespace.c (add_using_directive): Likewise. * nat/linux-btrace.c (perf_event_read): Likewise. (linux_enable_bts): Likewise. * nat/linux-osdata.c (linux_common_core_of_thread): Likewise. * nat/linux-ptrace.c (linux_ptrace_test_ret_to_nx): Likewise. * nto-tdep.c (nto_find_and_open_solib): Likewise. (nto_parse_redirection): Likewise. * objc-lang.c (objc_demangle): Likewise. (find_methods): Likewise. * objfiles.c (get_objfile_bfd_data): Likewise. (set_objfile_main_name): Likewise. (allocate_objfile): Likewise. (objfile_relocate): Likewise. (update_section_map): Likewise. * osabi.c (generic_elf_osabi_sniff_abi_tag_sections): Likewise. * p-exp.y (exp): Likewise. (yylex): Likewise. * p-valprint.c (pascal_object_print_value): Likewise. * parse.c (initialize_expout): Likewise. (mark_completion_tag): Likewise. (copy_name): Likewise. (parse_float): Likewise. (type_stack_reserve): Likewise. * ppc-linux-tdep.c (ppc_stap_parse_special_token): Likewise. (ppu2spu_prev_register): Likewise. * ppc-ravenscar-thread.c (supply_register_at_address): Likewise. * printcmd.c (printf_wide_c_string): Likewise. (printf_pointer): Likewise. * probe.c (parse_probes): Likewise. * python/py-cmd.c (gdbpy_parse_command_name): Likewise. (cmdpy_init): Likewise. * python/py-gdb-readline.c (gdbpy_readline_wrapper): Likewise. * python/py-symtab.c (set_sal): Likewise. * python/py-unwind.c (pyuw_sniffer): Likewise. * python/python.c (python_interactive_command): Likewise. (compute_python_string): Likewise. * ravenscar-thread.c (get_running_thread_id): Likewise. * record-full.c (record_full_exec_insn): Likewise. (record_full_core_open_1): Likewise. * regcache.c (regcache_raw_read_signed): Likewise. (regcache_raw_read_unsigned): Likewise. (regcache_cooked_read_signed): Likewise. (regcache_cooked_read_unsigned): Likewise. * remote-fileio.c (remote_fileio_func_open): Likewise. (remote_fileio_func_rename): Likewise. (remote_fileio_func_unlink): Likewise. (remote_fileio_func_stat): Likewise. (remote_fileio_func_system): Likewise. * remote-mips.c (mips_xfer_memory): Likewise. (mips_load_srec): Likewise. (pmon_end_download): Likewise. * remote.c (new_remote_state): Likewise. (map_regcache_remote_table): Likewise. (remote_register_number_and_offset): Likewise. (init_remote_state): Likewise. (get_memory_packet_size): Likewise. (remote_pass_signals): Likewise. (remote_program_signals): Likewise. (remote_start_remote): Likewise. (remote_check_symbols): Likewise. (remote_query_supported): Likewise. (extended_remote_attach): Likewise. (process_g_packet): Likewise. (store_registers_using_G): Likewise. (putpkt_binary): Likewise. (read_frame): Likewise. (compare_sections_command): Likewise. (remote_hostio_pread): Likewise. (remote_hostio_readlink): Likewise. (remote_file_put): Likewise. (remote_file_get): Likewise. (remote_pid_to_exec_file): Likewise. (_initialize_remote): Likewise. * rs6000-aix-tdep.c (rs6000_aix_ld_info_to_xml): Likewise. (rs6000_aix_core_xfer_shared_libraries_aix): Likewise. * rs6000-tdep.c (ppc_displaced_step_copy_insn): Likewise. (bfd_uses_spe_extensions): Likewise. * s390-linux-tdep.c (s390_displaced_step_copy_insn): Likewise. * score-tdep.c (score7_malloc_and_get_memblock): Likewise. * solib-dsbt.c (decode_loadmap): Likewise. (fetch_loadmap): Likewise. (scan_dyntag): Likewise. (enable_break): Likewise. (dsbt_relocate_main_executable): Likewise. * solib-frv.c (fetch_loadmap): Likewise. (enable_break2): Likewise. (frv_relocate_main_executable): Likewise. * solib-spu.c (spu_relocate_main_executable): Likewise. (spu_bfd_open): Likewise. * solib-svr4.c (lm_info_read): Likewise. (read_program_header): Likewise. (find_program_interpreter): Likewise. (scan_dyntag): Likewise. (elf_locate_base): Likewise. (open_symbol_file_object): Likewise. (read_program_headers_from_bfd): Likewise. (svr4_relocate_main_executable): Likewise. * solib-target.c (solib_target_relocate_section_addresses): Likewise. * solib.c (solib_find_1): Likewise. (exec_file_find): Likewise. (solib_find): Likewise. * source.c (openp): Likewise. (print_source_lines_base): Likewise. (forward_search_command): Likewise. * sparc-ravenscar-thread.c (supply_register_at_address): Likewise. * spu-tdep.c (spu2ppu_prev_register): Likewise. (spu_get_overlay_table): Likewise. * stabsread.c (patch_block_stabs): Likewise. (define_symbol): Likewise. (again:): Likewise. (read_member_functions): Likewise. (read_one_struct_field): Likewise. (read_enum_type): Likewise. (common_block_start): Likewise. * stack.c (read_frame_arg): Likewise. (backtrace_command): Likewise. * stap-probe.c (stap_parse_register_operand): Likewise. * symfile.c (syms_from_objfile_1): Likewise. (find_separate_debug_file): Likewise. (load_command): Likewise. (load_progress): Likewise. (load_section_callback): Likewise. (reread_symbols): Likewise. (add_filename_language): Likewise. (allocate_compunit_symtab): Likewise. (read_target_long_array): Likewise. (simple_read_overlay_table): Likewise. * symtab.c (symbol_set_names): Likewise. (resize_symbol_cache): Likewise. (rbreak_command): Likewise. (completion_list_add_name): Likewise. (completion_list_objc_symbol): Likewise. (add_filename_to_list): Likewise. * target-descriptions.c (maint_print_c_tdesc_cmd): Likewise. * target-memory.c (target_write_memory_blocks): Likewise. * target.c (target_read_string): Likewise. (read_whatever_is_readable): Likewise. (target_read_alloc_1): Likewise. (simple_search_memory): Likewise. (target_fileio_read_alloc_1): Likewise. * tilegx-tdep.c (tilegx_push_dummy_call): Likewise. * top.c (command_line_input): Likewise. * tracefile-tfile.c (tfile_fetch_registers): Likewise. * tracefile.c (tracefile_fetch_registers): Likewise. * tracepoint.c (add_memrange): Likewise. (init_collection_list): Likewise. (add_aexpr): Likewise. (trace_dump_actions): Likewise. (parse_trace_status): Likewise. (parse_tracepoint_definition): Likewise. (parse_tsv_definition): Likewise. (parse_static_tracepoint_marker_definition): Likewise. * tui/tui-file.c (tui_sfileopen): Likewise. (tui_file_adjust_strbuf): Likewise. * tui/tui-io.c (tui_expand_tabs): Likewise. * tui/tui-source.c (tui_set_source_content): Likewise. * typeprint.c (find_global_typedef): Likewise. * ui-file.c (do_ui_file_xstrdup): Likewise. (ui_file_obsavestring): Likewise. (mem_file_write): Likewise. * utils.c (make_hex_string): Likewise. (get_regcomp_error): Likewise. (puts_filtered_tabular): Likewise. (gdb_realpath_keepfile): Likewise. (ldirname): Likewise. (gdb_bfd_errmsg): Likewise. (substitute_path_component): Likewise. * valops.c (search_struct_method): Likewise. (find_oload_champ_namespace_loop): Likewise. * valprint.c (print_decimal_chars): Likewise. (read_string): Likewise. (generic_emit_char): Likewise. * varobj.c (varobj_delete): Likewise. (varobj_value_get_print_value): Likewise. * vaxobsd-tdep.c (vaxobsd_sigtramp_sniffer): Likewise. * windows-tdep.c (display_one_tib): Likewise. * xcoffread.c (read_xcoff_symtab): Likewise. (process_xcoff_symbol): Likewise. (swap_sym): Likewise. (scan_xcoff_symtab): Likewise. (xcoff_initial_scan): Likewise. * xml-support.c (gdb_xml_end_element): Likewise. (xml_process_xincludes): Likewise. (xml_fetch_content_from_file): Likewise. * xml-syscall.c (xml_list_of_syscalls): Likewise. * xstormy16-tdep.c (xstormy16_push_dummy_call): Likewise. gdb/gdbserver/ChangeLog: * ax.c (gdb_parse_agent_expr): Add cast to allocation result assignment. (gdb_unparse_agent_expr): Likewise. * hostio.c (require_data): Likewise. (handle_pread): Likewise. * linux-low.c (disable_regset): Likewise. (fetch_register): Likewise. (store_register): Likewise. (get_dynamic): Likewise. (linux_qxfer_libraries_svr4): Likewise. * mem-break.c (delete_fast_tracepoint_jump): Likewise. (set_fast_tracepoint_jump): Likewise. (uninsert_fast_tracepoint_jumps_at): Likewise. (reinsert_fast_tracepoint_jumps_at): Likewise. (validate_inserted_breakpoint): Likewise. (clone_agent_expr): Likewise. * regcache.c (init_register_cache): Likewise. * remote-utils.c (putpkt_binary_1): Likewise. (decode_M_packet): Likewise. (decode_X_packet): Likewise. (look_up_one_symbol): Likewise. (relocate_instruction): Likewise. (monitor_output): Likewise. * server.c (handle_search_memory): Likewise. (handle_qxfer_exec_file): Likewise. (handle_qxfer_libraries): Likewise. (handle_qxfer): Likewise. (handle_query): Likewise. (handle_v_cont): Likewise. (handle_v_run): Likewise. (captured_main): Likewise. * target.c (write_inferior_memory): Likewise. * thread-db.c (try_thread_db_load_from_dir): Likewise. * tracepoint.c (init_trace_buffer): Likewise. (add_tracepoint_action): Likewise. (add_traceframe): Likewise. (add_traceframe_block): Likewise. (cmd_qtdpsrc): Likewise. (cmd_qtdv): Likewise. (cmd_qtstatus): Likewise. (response_source): Likewise. (response_tsv): Likewise. (cmd_qtnotes): Likewise. (gdb_collect): Likewise. (initialize_tracepoint): Likewise. |
||
|
Pedro Alves
|
d57e0d5022 |
gdbserver: Fix exec stop reply reporting conditions
gdb/gdbserver/ChangeLog: 2015-09-15 Pedro Alves <palves@redhat.com> * remote-utils.c (prepare_resume_reply) <TARGET_WAITKIND_EXECD>: Check whether to report exec events instead of checking whether multiprocess is enabled. |
||
|
Pedro Alves
|
8228463cbc |
PR remote/18965: vforkdone stop reply should indicate parent PID
The vforkdone stop reply misses indicating the thread ID of the vfork
parent which the event relates to:
@cindex vfork events, remote reply
@item vfork
The packet indicates that @code{vfork} was called, and @var{r}
is the thread ID of the new child process. Refer to
@ref{thread-id syntax} for the format of the @var{thread-id}
field. This packet is only applicable to targets that support
vfork events.
@cindex vforkdone events, remote reply
@item vforkdone
The packet indicates that a child process created by a vfork
has either called @code{exec} or terminated, so that the
address spaces of the parent and child process are no longer
shared. The @var{r} part is ignored. This packet is only
applicable to targets that support vforkdone events.
Unfortunately, this is not just a documentation issue. GDBserver
is really not specifying the thread ID. I noticed because
in non-stop mode, gdb complains:
[Thread 6089.6089] #1 stopped.
#0 0x0000003615a011f0 in ?? ()
0x0000003615a011f0 in ?? ()
(gdb) set debug remote 1
(gdb) c
Continuing.
Sending packet: $QPassSignals:e;10;14;17;1a;1b;1c;21;24;25;2c;4c;#5f...Packet received: OK
Sending packet: $vCont;c:p17c9.17c9#88...Packet received: OK
Notification received: Stop:T05vfork:p17ce.17ce;06:40d7ffffff7f0000;07:30d7ffffff7f0000;10:e4c9eb1536000000;thread:p17c9.17c9;core:2;
Sending packet: $vStopped#55...Packet received: OK
Sending packet: $D;17ce#af...Packet received: OK
Sending packet: $vCont;c:p17c9.17c9#88...Packet received: OK
Notification received: Stop:T05vforkdone:;
No process or thread specified in stop reply: T05vforkdone:;
(gdb)
This is not non-stop-mode-specific, however. Consider e.g., that in
all-stop, you may be debugging more than one process at the same time.
You continue, and both processes vfork. So when you next get a
T05vforkdone, there's no way to tell which of the parent processes is
done with the vfork.
Tests will be added later.
Tested on x86_64 Fedora 20.
gdb/ChangeLog:
2015-09-15 Pedro Alves <palves@redhat.com>
PR remote/18965
* remote-utils.c (prepare_resume_reply): Merge
TARGET_WAITKIND_VFORK_DONE switch case with the
TARGET_WAITKIND_FORKED case.
gdb/doc/ChangeLog:
2015-09-15 Pedro Alves <palves@redhat.com>
PR remote/18965
* gdb.texinfo (Stop Reply Packets): Explain that vforkdone's 'r'
part indicates the thread ID of the parent process.
|
||
|
Don Breazeal
|
94585166df |
Extended-remote follow-exec
This patch implements support for exec events on extended-remote Linux targets. Follow-exec-mode and rerun behave as expected. Catchpoints and test updates are implemented in subsequent patches. This patch was derived from a patch posted last October: https://sourceware.org/ml/gdb-patches/2014-10/msg00877.html. It was originally based on some work done by Luis Machado in 2013. IMPLEMENTATION ---------------- Exec events are enabled via ptrace options. When an exec event is detected by gdbserver, the existing process data, along with all its associated lwp and thread data, is deleted and replaced by data for a new single-threaded process. The new process data is initialized with the appropriate parts of the state of the execing process. This approach takes care of several potential pitfalls, including: * deleting the data for an execing non-leader thread before any wait/sigsuspend occurs * correctly initializing the architecture of the execed process We then report the exec event using a new RSP stop reason, "exec". When GDB receives an "exec" event, it saves the status in the event structure's target_waitstatus field, like what is done for remote fork events. Because the original and execed programs may have different architectures, we skip parsing the section of the stop reply packet that contains register data. The register data will be retrieved later after the inferior's architecture has been set up by infrun.c:follow_exec. At that point the exec event is handled by the existing event handling in GDB. However, a few changes were necessary so that infrun.c:follow_exec could accommodate the remote target. * Where follow-exec-mode "new" is handled, we now call add_inferior_with_spaces instead of add_inferior with separate calls to set up the program and address spaces. The motivation for this is that add_inferior_with_spaces also sets up the initial architecture for the inferior, which is needed later by target_find_description when it calls target_gdbarch. * We call a new target function, target_follow_exec. This function allows us to store the execd_pathname in the inferior, instead of using the static string remote_exec_file from remote.c. The static string didn't work for follow-exec-mode "new", since once you switched to the execed program, the original remote exec-file was lost. The execd_pathname is now stored in the inferior's program space as a REGISTRY field. All of the requisite mechanisms for this are defined in remote.c. gdb/gdbserver/ChangeLog: * linux-low.c (linux_mourn): Static declaration. (linux_arch_setup): Move in front of handle_extended_wait. (linux_arch_setup_thread): New function. (handle_extended_wait): Handle exec events. Call linux_arch_setup_thread. Make event_lwp argument a pointer-to-a-pointer. (check_zombie_leaders): Do not check stopped threads. (linux_low_ptrace_options): Add PTRACE_O_TRACEEXEC. (linux_low_filter_event): Add lwp and thread for exec'ing non-leader thread if leader thread has been deleted. Refactor code into linux_arch_setup_thread and call it. Pass child lwp pointer by reference to handle_extended_wait. (linux_wait_for_event_filtered): Update comment. (linux_wait_1): Prevent clobbering exec event status. (linux_supports_exec_events): New function. (linux_target_ops) <supports_exec_events>: Initialize new member. * lynx-low.c (lynx_target_ops) <supports_exec_events>: Initialize new member. * remote-utils.c (prepare_resume_reply): New stop reason 'exec'. * server.c (report_exec_events): New global variable. (handle_query): Handle qSupported query for exec-events feature. (captured_main): Initialize report_exec_events. * server.h (report_exec_events): Declare new global variable. * target.h (struct target_ops) <supports_exec_events>: New member. (target_supports_exec_events): New macro. * win32-low.c (win32_target_ops) <supports_exec_events>: Initialize new member. gdb/ChangeLog: * infrun.c (follow_exec): Use process-style ptid for exec message. Call add_inferior_with_spaces and target_follow_exec. * nat/linux-ptrace.c (linux_supports_traceexec): New function. * nat/linux-ptrace.h (linux_supports_traceexec): Declare. * remote.c (remote_pspace_data): New static variable. (remote_pspace_data_cleanup): New function. (get_remote_exec_file): New function. (set_remote_exec_file_1): New function. (set_remote_exec_file): New function. (show_remote_exec_file): New function. (remote_exec_file): Delete static variable. (anonymous enum) <PACKET_exec_event_feature> New enumeration constant. (remote_protocol_features): Add entry for exec-events feature. (remote_query_supported): Add client side of qSupported query for exec-events feature. (remote_follow_exec): New function. (remote_parse_stop_reply): Handle 'exec' stop reason. (extended_remote_run, extended_remote_create_inferior): Call get_remote_exec_file and set_remote_exec_file_1. (init_extended_remote_ops) <to_follow_exec>: Initialize new member. (_initialize_remote): Call register_program_space_data_with_cleanup. Call add_packet_config_cmd for remote exec-events feature. Modify call to add_setshow_string_noescape_cmd for exec-file to use new functions set_remote_exec_file and show_remote_exec_file. * target-debug.h, target-delegates.c: Regenerated. * target.c (target_follow_exec): New function. * target.h (struct target_ops) <to_follow_exec>: New member. (target_follow_exec): Declare new function. |
||
|
Simon Marchi
|
8d7493201c |
Replace some xmalloc-family functions with XNEW-family ones
This patch is part of the make-gdb-buildable-in-C++ effort. The idea is to change some calls to the xmalloc family of functions to calls to the equivalents in the XNEW family. This avoids adding an explicit cast, so it keeps the code a bit more readable. Some of them also map relatively well to a C++ equivalent (XNEW (struct foo) -> new foo), so it will be possible to do scripted replacements if needed. I only changed calls that were obviously allocating memory for one or multiple "objects". Allocation of variable sizes (such as strings or buffer handling) will be for later (and won't use XNEW). - xmalloc (sizeof (struct foo)) -> XNEW (struct foo) - xmalloc (num * sizeof (struct foo)) -> XNEWVEC (struct foo, num) - xcalloc (1, sizeof (struct foo)) -> XCNEW (struct foo) - xcalloc (num, sizeof (struct foo)) -> XCNEWVEC (struct foo, num) - xrealloc (p, num * sizeof (struct foo) -> XRESIZEVEC (struct foo, p, num) - obstack_alloc (ob, sizeof (struct foo)) -> XOBNEW (ob, struct foo) - obstack_alloc (ob, num * sizeof (struct foo)) -> XOBNEWVEC (ob, struct foo, num) - alloca (sizeof (struct foo)) -> XALLOCA (struct foo) - alloca (num * sizeof (struct foo)) -> XALLOCAVEC (struct foo, num) Some instances of xmalloc followed by memset to zero the buffer were replaced by XCNEW or XCNEWVEC. I regtested on x86-64, Ubuntu 14.04, but the patch touches many architecture-specific files. For those I'll have to rely on the buildbot or people complaining that I broke their gdb. gdb/ChangeLog: * aarch64-linux-nat.c (aarch64_add_process): Likewise. * aarch64-tdep.c (aarch64_gdbarch_init): Likewise. * ada-exp.y (write_ambiguous_var): Likewise. * ada-lang.c (resolve_subexp): Likewise. (user_select_syms): Likewise. (assign_aggregate): Likewise. (ada_evaluate_subexp): Likewise. (cache_symbol): Likewise. * addrmap.c (allocate_key): Likewise. (addrmap_create_mutable): Likewise. * aix-thread.c (sync_threadlists): Likewise. * alpha-tdep.c (alpha_push_dummy_call): Likewise. (alpha_gdbarch_init): Likewise. * amd64-windows-tdep.c (amd64_windows_push_arguments): Likewise. * arm-linux-nat.c (arm_linux_add_process): Likewise. * arm-linux-tdep.c (arm_linux_displaced_step_copy_insn): Likewise. * arm-tdep.c (push_stack_item): Likewise. (arm_displaced_step_copy_insn): Likewise. (arm_gdbarch_init): Likewise. (_initialize_arm_tdep): Likewise. * avr-tdep.c (push_stack_item): Likewise. * ax-general.c (new_agent_expr): Likewise. * block.c (block_initialize_namespace): Likewise. * breakpoint.c (alloc_counted_command_line): Likewise. (update_dprintf_command_list): Likewise. (parse_breakpoint_sals): Likewise. (decode_static_tracepoint_spec): Likewise. (until_break_command): Likewise. (clear_command): Likewise. (update_global_location_list): Likewise. (get_breakpoint_objfile_data) Likewise. * btrace.c (ftrace_new_function): Likewise. (btrace_set_insn_history): Likewise. (btrace_set_call_history): Likewise. * buildsym.c (add_symbol_to_list): Likewise. (record_pending_block): Likewise. (start_subfile): Likewise. (start_buildsym_compunit): Likewise. (push_subfile): Likewise. (end_symtab_get_static_block): Likewise. (buildsym_init): Likewise. * cli/cli-cmds.c (source_command): Likewise. * cli/cli-decode.c (add_cmd): Likewise. * cli/cli-script.c (build_command_line): Likewise. (setup_user_args): Likewise. (realloc_body_list): Likewise. (process_next_line): Likewise. (copy_command_lines): Likewise. * cli/cli-setshow.c (do_set_command): Likewise. * coff-pe-read.c (read_pe_exported_syms): Likewise. * coffread.c (coff_locate_sections): Likewise. (coff_symtab_read): Likewise. (coff_read_struct_type): Likewise. * common/cleanups.c (make_my_cleanup2): Likewise. * common/common-exceptions.c (throw_it): Likewise. * common/filestuff.c (make_cleanup_close): Likewise. * common/format.c (parse_format_string): Likewise. * common/queue.h (DEFINE_QUEUE_P): Likewise. * compile/compile-object-load.c (munmap_list_add): Likewise. (compile_object_load): Likewise. * compile/compile-object-run.c (compile_object_run): Likewise. * compile/compile.c (append_args): Likewise. * corefile.c (specify_exec_file_hook): Likewise. * cp-support.c (make_symbol_overload_list): Likewise. * cris-tdep.c (push_stack_item): Likewise. (cris_gdbarch_init): Likewise. * ctf.c (ctf_trace_file_writer_new): Likewise. * dbxread.c (init_header_files): Likewise. (add_new_header_file): Likewise. (init_bincl_list): Likewise. (dbx_end_psymtab): Likewise. (start_psymtab): Likewise. (dbx_end_psymtab): Likewise. * dcache.c (dcache_init): Likewise. * dictionary.c (dict_create_hashed): Likewise. (dict_create_hashed_expandable): Likewise. (dict_create_linear): Likewise. (dict_create_linear_expandable): Likewise. * dtrace-probe.c (dtrace_process_dof_probe): Likewise. * dummy-frame.c (register_dummy_frame_dtor): Likewise. * dwarf2-frame-tailcall.c (cache_new_ref1): Likewise. * dwarf2-frame.c (dwarf2_build_frame_info): Likewise. (decode_frame_entry_1): Likewise. * dwarf2expr.c (new_dwarf_expr_context): Likewise. * dwarf2loc.c (dwarf2_compile_expr_to_ax): Likewise. * dwarf2read.c (dwarf2_has_info): Likewise. (create_signatured_type_table_from_index): Likewise. (dwarf2_read_index): Likewise. (dw2_get_file_names_reader): Likewise. (create_all_type_units): Likewise. (read_cutu_die_from_dwo): Likewise. (init_tu_and_read_dwo_dies): Likewise. (init_cutu_and_read_dies): Likewise. (create_all_comp_units): Likewise. (queue_comp_unit): Likewise. (inherit_abstract_dies): Likewise. (read_call_site_scope): Likewise. (dwarf2_add_field): Likewise. (dwarf2_add_typedef): Likewise. (dwarf2_add_member_fn): Likewise. (attr_to_dynamic_prop): Likewise. (abbrev_table_alloc_abbrev): Likewise. (abbrev_table_read_table): Likewise. (add_include_dir): Likewise. (add_file_name): Likewise. (dwarf_decode_line_header): Likewise. (dwarf2_const_value_attr): Likewise. (dwarf_alloc_block): Likewise. (parse_macro_definition): Likewise. (set_die_type): Likewise. (write_psymtabs_to_index): Likewise. (create_cus_from_index): Likewise. (dwarf2_create_include_psymtab): Likewise. (process_psymtab_comp_unit_reader): Likewise. (build_type_psymtab_dependencies): Likewise. (read_comp_units_from_section): Likewise. (compute_compunit_symtab_includes): Likewise. (create_dwo_unit_in_dwp_v1): Likewise. (create_dwo_unit_in_dwp_v2): Likewise. (read_func_scope): Likewise. (process_structure_scope): Likewise. (mark_common_block_symbol_computed): Likewise. (load_partial_dies): Likewise. (dwarf2_symbol_mark_computed): Likewise. * elfread.c (elf_symfile_segments): Likewise. (elf_read_minimal_symbols): Likewise. * environ.c (make_environ): Likewise. * eval.c (evaluate_subexp_standard): Likewise. * event-loop.c (create_file_handler): Likewise. (create_async_signal_handler): Likewise. (create_async_event_handler): Likewise. (create_timer): Likewise. * exec.c (build_section_table): Likewise. * fbsd-nat.c (fbsd_remember_child): Likewise. * fork-child.c (fork_inferior): Likewise. * frv-tdep.c (new_variant): Likewise. * gdbarch.sh (gdbarch_alloc): Likewise. (append_name): Likewise. * gdbtypes.c (rank_function): Likewise. (copy_type_recursive): Likewise. (add_dyn_prop): Likewise. * gnu-nat.c (make_proc): Likewise. (make_inf): Likewise. (gnu_write_inferior): Likewise. * gnu-v3-abi.c (build_gdb_vtable_type): Likewise. (build_std_type_info_type): Likewise. * guile/scm-param.c (compute_enum_list): Likewise. * guile/scm-utils.c (gdbscm_parse_function_args): Likewise. * guile/scm-value.c (gdbscm_value_call): Likewise. * h8300-tdep.c (h8300_gdbarch_init): Likewise. * hppa-tdep.c (hppa_init_objfile_priv_data): Likewise. (read_unwind_info): Likewise. * ia64-tdep.c (ia64_gdbarch_init): Likewise. * infcall.c (dummy_frame_context_saver_setup): Likewise. (call_function_by_hand_dummy): Likewise. * infcmd.c (step_once): Likewise. (finish_forward): Likewise. (attach_command): Likewise. (notice_new_inferior): Likewise. * inferior.c (add_inferior_silent): Likewise. * infrun.c (add_displaced_stepping_state): Likewise. (save_infcall_control_state): Likewise. (save_inferior_ptid): Likewise. (_initialize_infrun): Likewise. * jit.c (bfd_open_from_target_memory): Likewise. (jit_gdbarch_data_init): Likewise. * language.c (add_language): Likewise. * linespec.c (decode_line_2): Likewise. * linux-nat.c (add_to_pid_list): Likewise. (add_initial_lwp): Likewise. * linux-thread-db.c (add_thread_db_info): Likewise. (record_thread): Likewise. (info_auto_load_libthread_db): Likewise. * m32c-tdep.c (m32c_gdbarch_init): Likewise. * m68hc11-tdep.c (m68hc11_gdbarch_init): Likewise. * m68k-tdep.c (m68k_gdbarch_init): Likewise. * m88k-tdep.c (m88k_analyze_prologue): Likewise. * macrocmd.c (macro_define_command): Likewise. * macroexp.c (gather_arguments): Likewise. * macroscope.c (sal_macro_scope): Likewise. * macrotab.c (new_macro_table): Likewise. * mdebugread.c (push_parse_stack): Likewise. (parse_partial_symbols): Likewise. (parse_symbol): Likewise. (psymtab_to_symtab_1): Likewise. (new_block): Likewise. (new_psymtab): Likewise. (mdebug_build_psymtabs): Likewise. (add_pending): Likewise. (elfmdebug_build_psymtabs): Likewise. * mep-tdep.c (mep_gdbarch_init): Likewise. * mi/mi-main.c (mi_execute_command): Likewise. * mi/mi-parse.c (mi_parse_argv): Likewise. * minidebug.c (lzma_open): Likewise. * minsyms.c (terminate_minimal_symbol_table): Likewise. * mips-linux-nat.c (mips_linux_insert_watchpoint): Likewise. * mips-tdep.c (mips_gdbarch_init): Likewise. * mn10300-tdep.c (mn10300_gdbarch_init): Likewise. * msp430-tdep.c (msp430_gdbarch_init): Likewise. * mt-tdep.c (mt_registers_info): Likewise. * nat/aarch64-linux.c (aarch64_linux_new_thread): Likewise. * nat/linux-btrace.c (linux_enable_bts): Likewise. (linux_enable_pt): Likewise. * nat/linux-osdata.c (linux_xfer_osdata_processes): Likewise. (linux_xfer_osdata_processgroups): Likewise. * nios2-tdep.c (nios2_gdbarch_init): Likewise. * nto-procfs.c (procfs_meminfo): Likewise. * objc-lang.c (start_msglist): Likewise. (selectors_info): Likewise. (classes_info): Likewise. (find_methods): Likewise. * objfiles.c (allocate_objfile): Likewise. (update_section_map): Likewise. * osabi.c (gdbarch_register_osabi): Likewise. (gdbarch_register_osabi_sniffer): Likewise. * parse.c (start_arglist): Likewise. * ppc-linux-nat.c (hwdebug_find_thread_points_by_tid): Likewise. (hwdebug_insert_point): Likewise. * printcmd.c (display_command): Likewise. (ui_printf): Likewise. * procfs.c (create_procinfo): Likewise. (load_syscalls): Likewise. (proc_get_LDT_entry): Likewise. (proc_update_threads): Likewise. * prologue-value.c (make_pv_area): Likewise. (pv_area_store): Likewise. * psymtab.c (extend_psymbol_list): Likewise. (init_psymbol_list): Likewise. (allocate_psymtab): Likewise. * python/py-inferior.c (add_thread_object): Likewise. * python/py-param.c (compute_enum_values): Likewise. * python/py-value.c (valpy_call): Likewise. * python/py-varobj.c (py_varobj_iter_next): Likewise. * python/python.c (ensure_python_env): Likewise. * record-btrace.c (record_btrace_start_replaying): Likewise. * record-full.c (record_full_reg_alloc): Likewise. (record_full_mem_alloc): Likewise. (record_full_end_alloc): Likewise. (record_full_core_xfer_partial): Likewise. * regcache.c (get_thread_arch_aspace_regcache): Likewise. * remote-fileio.c (remote_fileio_init_fd_map): Likewise. * remote-notif.c (remote_notif_state_allocate): Likewise. * remote.c (demand_private_info): Likewise. (remote_notif_stop_alloc_reply): Likewise. (remote_enable_btrace): Likewise. * reverse.c (save_bookmark_command): Likewise. * rl78-tdep.c (rl78_gdbarch_init): Likewise. * rx-tdep.c (rx_gdbarch_init): Likewise. * s390-linux-nat.c (s390_insert_watchpoint): Likewise. * ser-go32.c (dos_get_tty_state): Likewise. (dos_copy_tty_state): Likewise. * ser-mingw.c (ser_windows_open): Likewise. (ser_console_wait_handle): Likewise. (ser_console_get_tty_state): Likewise. (make_pipe_state): Likewise. (net_windows_open): Likewise. * ser-unix.c (hardwire_get_tty_state): Likewise. (hardwire_copy_tty_state): Likewise. * solib-aix.c (solib_aix_new_lm_info): Likewise. * solib-dsbt.c (dsbt_current_sos): Likewise. (dsbt_relocate_main_executable): Likewise. * solib-frv.c (frv_current_sos): Likewise. (frv_relocate_main_executable): Likewise. * solib-spu.c (spu_bfd_fopen): Likewise. * solib-svr4.c (lm_info_read): Likewise. (svr4_copy_library_list): Likewise. (svr4_default_sos): Likewise. * source.c (find_source_lines): Likewise. (line_info): Likewise. (add_substitute_path_rule): Likewise. * spu-linux-nat.c (spu_bfd_open): Likewise. * spu-tdep.c (info_spu_dma_cmdlist): Likewise. * stabsread.c (dbx_lookup_type): Likewise. (read_type): Likewise. (read_member_functions): Likewise. (read_struct_fields): Likewise. (read_baseclasses): Likewise. (read_args): Likewise. (_initialize_stabsread): Likewise. * stack.c (func_command): Likewise. * stap-probe.c (handle_stap_probe): Likewise. * symfile.c (addrs_section_sort): Likewise. (addr_info_make_relative): Likewise. (load_section_callback): Likewise. (add_symbol_file_command): Likewise. (init_filename_language_table): Likewise. * symtab.c (create_filename_seen_cache): Likewise. (sort_search_symbols_remove_dups): Likewise. (search_symbols): Likewise. * target.c (make_cleanup_restore_target_terminal): Likewise. * thread.c (new_thread): Likewise. (enable_thread_stack_temporaries): Likewise. (make_cleanup_restore_current_thread): Likewise. (thread_apply_all_command): Likewise. * tic6x-tdep.c (tic6x_gdbarch_init): Likewise. * top.c (gdb_readline_wrapper): Likewise. * tracefile-tfile.c (tfile_trace_file_writer_new): Likewise. * tracepoint.c (trace_find_line_command): Likewise. (all_tracepoint_actions_and_cleanup): Likewise. (make_cleanup_restore_current_traceframe): Likewise. (get_uploaded_tp): Likewise. (get_uploaded_tsv): Likewise. * tui/tui-data.c (tui_alloc_generic_win_info): Likewise. (tui_alloc_win_info): Likewise. (tui_alloc_content): Likewise. (tui_add_content_elements): Likewise. * tui/tui-disasm.c (tui_find_disassembly_address): Likewise. (tui_set_disassem_content): Likewise. * ui-file.c (ui_file_new): Likewise. (stdio_file_new): Likewise. (tee_file_new): Likewise. * utils.c (make_cleanup_restore_integer): Likewise. (add_internal_problem_command): Likewise. * v850-tdep.c (v850_gdbarch_init): Likewise. * valops.c (find_oload_champ): Likewise. * value.c (allocate_value_lazy): Likewise. (record_latest_value): Likewise. (create_internalvar): Likewise. * varobj.c (install_variable): Likewise. (new_variable): Likewise. (new_root_variable): Likewise. (cppush): Likewise. (_initialize_varobj): Likewise. * windows-nat.c (windows_make_so): Likewise. * x86-nat.c (x86_add_process): Likewise. * xcoffread.c (arrange_linetable): Likewise. (allocate_include_entry): Likewise. (process_linenos): Likewise. (SYMBOL_DUP): Likewise. (xcoff_start_psymtab): Likewise. (xcoff_end_psymtab): Likewise. * xml-support.c (gdb_xml_parse_attr_ulongest): Likewise. * xtensa-tdep.c (xtensa_register_type): Likewise. * gdbarch.c: Regenerate. * gdbarch.h: Regenerate. gdb/gdbserver/ChangeLog: * ax.c (gdb_parse_agent_expr): Likewise. (compile_bytecodes): Likewise. * dll.c (loaded_dll): Likewise. * event-loop.c (append_callback_event): Likewise. (create_file_handler): Likewise. (create_file_event): Likewise. * hostio.c (handle_open): Likewise. * inferiors.c (add_thread): Likewise. (add_process): Likewise. * linux-aarch64-low.c (aarch64_linux_new_process): Likewise. * linux-arm-low.c (arm_new_process): Likewise. (arm_new_thread): Likewise. * linux-low.c (add_to_pid_list): Likewise. (linux_add_process): Likewise. (handle_extended_wait): Likewise. (add_lwp): Likewise. (enqueue_one_deferred_signal): Likewise. (enqueue_pending_signal): Likewise. (linux_resume_one_lwp_throw): Likewise. (linux_resume_one_thread): Likewise. (linux_read_memory): Likewise. (linux_write_memory): Likewise. * linux-mips-low.c (mips_linux_new_process): Likewise. (mips_linux_new_thread): Likewise. (mips_add_watchpoint): Likewise. * linux-x86-low.c (initialize_low_arch): Likewise. * lynx-low.c (lynx_add_process): Likewise. * mem-break.c (set_raw_breakpoint_at): Likewise. (set_breakpoint): Likewise. (add_condition_to_breakpoint): Likewise. (add_commands_to_breakpoint): Likewise. (clone_agent_expr): Likewise. (clone_one_breakpoint): Likewise. * regcache.c (new_register_cache): Likewise. * remote-utils.c (look_up_one_symbol): Likewise. * server.c (queue_stop_reply): Likewise. (start_inferior): Likewise. (queue_stop_reply_callback): Likewise. (handle_target_event): Likewise. * spu-low.c (fetch_ppc_memory): Likewise. (store_ppc_memory): Likewise. * target.c (set_target_ops): Likewise. * thread-db.c (thread_db_load_search): Likewise. (try_thread_db_load_1): Likewise. * tracepoint.c (add_tracepoint): Likewise. (add_tracepoint_action): Likewise. (create_trace_state_variable): Likewise. (cmd_qtdpsrc): Likewise. (cmd_qtro): Likewise. (add_while_stepping_state): Likewise. * win32-low.c (child_add_thread): Likewise. (get_image_name): Likewise. |
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Pedro Alves
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3d40fbb53b |
gdbserver crashes when multiprocess extensions aren't supported
Ref: https://sourceware.org/ml/gdb-patches/2015-08/msg00675.html If multiprocess extensions are off (because specific gdbserver port doesn't support them), then when gdbserver doesn't have a thread selected yet, and GDB sends Hg packet to select one, gdbserver crashes. That's because extracting the desired thread id out of the packet that GDB sent depends on the current thread to fill in the missing process id ... Fix this by getting the process id from the first (and only) process in the processes list instead. The GNU/Linux port doesn't trip on this because it always runs with multiprocess extensions enabled. To make it easier to catch such regressions going forward, this commit also adds a new smoke test that spawns gdbserver, connects to it and runs to main with the multiprocess extensions force-disabled. gdb/gdbserver/ChangeLog: 2015-08-24 Pedro Alves <palves@redhat.com> * inferiors.c (get_first_process): New function. * inferiors.h (get_first_process): New declaration. * remote-utils.c (read_ptid): Default to the first process in the list, instead of to the current thread's process. gdb/testsuite/ChangeLog: 2015-08-24 Pedro Alves <palves@redhat.com> * gdb.server/connect-without-multi-process.c: New file. * gdb.server/connect-without-multi-process.exp: New file. |
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Pedro Alves
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438e1e427e |
Prepare for gnulib update
After the last gnulib import (Dec 2012), gnulib upstream started
replacing mingw's 'struct timeval' with a version with 64-bit time_t,
for POSIX compliance:
commit f8e84098084b3b53bc6943a5542af1f607ffd477
Author: Bruno Haible <bruno@clisp.org>
Date: Sat Jan 28 18:12:10 2012 +0100
sys_time: Override 'struct timeval' on some native Windows platforms.
See:
https://lists.gnu.org/archive/html/bug-gnulib/2012-01/msg00372.html
However, that results in conflicts with native Winsock2's 'select':
select()'s argument
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Pedro Alves
|
f0db101d98 |
gdbserver: don't pick a random thread if the current thread dies
In all-stop mode, if the current thread disappears while stopping all threads, gdbserver calls set_desired_thread(0) ['0' means "I want the continue thread"] which just picks the first thread in the list. This looks like a dangerous thing to do. GDBserver continues processing whatever it was doing, but to the wrong thread. If debugging more than one process, we may even pick the wrong process. Instead, GDBserver should detect the situation and bail out of whatever is was doing. The backends used to pay attention to the set 'cont_thread' (the Hc thread, used in the old way to resume threads, before vCont), but all such 'cont_thread' checks have been eliminated meanwhile. The remaining implicit dependencies that I found on there being a selected thread in the backends are in the Ctrl-C handling, which some backends use as thread to send a signal to. Even that seems to me to be better handled by always using the first thread in the list or by using the signal_pid PID. In order to make this a systematic approach, I'm making set_desired_thread never fallback to a random thread, and instead end up with current_thread == NULL, like already done in non-stop mode. Then I updated all callers to handle the situation. I stumbled on this while fixing other bugs exposed by gdb.threads/fork-plus-threads.exp test. The problems I saw were fixed in a different way, but in any case, I think the potential for problems is more or less obvious, and the resulting code looks a bit less magical to me. Tested on x86-64 Fedora 20, w/ native-extended-gdbserver board. gdb/gdbserver/ChangeLog: 2015-08-21 Pedro Alves <palves@redhat.com> * linux-low.c (wait_for_sigstop): Always switch to no thread selected if the previously current thread dies. * lynx-low.c (lynx_request_interrupt): Use the first thread's process instead of the current thread's. * remote-utils.c (input_interrupt): Don't check if there's no current thread. * server.c (gdb_read_memory, gdb_write_memory): If setting the current thread to the general thread fails, error out. (handle_qxfer_auxv, handle_qxfer_libraries) (handle_qxfer_libraries_svr4, handle_qxfer_siginfo) (handle_qxfer_spu, handle_qxfer_statictrace, handle_qxfer_fdpic) (handle_query): Check if there's a thread selected instead of checking whether there's any thread in the thread list. (handle_qxfer_threads, handle_qxfer_btrace) (handle_qxfer_btrace_conf): Don't error out early if there's no thread in the thread list. (handle_v_cont, myresume): Don't set the current thread to the continue thread. (process_serial_event) <Hg handling>: Also set thread_id if the previous general thread is still alive. (process_serial_event) <g/G handling>: If setting the current thread to the general thread fails, error out. * spu-low.c (spu_resume, spu_request_interrupt): Use the first thread's lwp instead of the current thread's. * target.c (set_desired_thread): If the desired thread was not found, leave the current thread pointing to NULL. Return an int (boolean) indicating success. * target.h (set_desired_thread): Change return type to int. |
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Don Breazeal
|
c269dbdb60 |
Extended-remote follow vfork
This patch implements follow-fork for vfork on extended-remote Linux targets.
The implementation follows the native implementation as much as possible.
Most of the work is done on the GDB side in the existing code now in
infrun.c. GDBserver just has to report the events and do a little
bookkeeping.
Implementation includes:
* enabling VFORK events by adding ptrace options for VFORK and VFORK_DONE
to linux-low.c:linux_low_ptrace_options.
* handling VFORK and VFORK_DONE events in linux-low.c:handle_extended_wait
and reporting them to GDB.
* including VFORK and VFORK_DONE events in the predicate
linux-low.c:extended_event_reported.
* adding support for VFORK and VFORK_DONE events in RSP by adding stop
reasons "vfork" and "vforkdone" to the 'T' Stop Reply Packet in both
gdbserver/remote-utils.c and gdb/remote.c.
Tested on x64 Ubuntu Lucid, native, remote, extended-remote.
gdb/gdbserver/ChangeLog:
* linux-low.c (handle_extended_wait): Handle PTRACE_EVENT_FORK and
PTRACE_EVENT_VFORK_DONE.
(linux_low_ptrace_options, extended_event_reported): Add vfork
events.
* remote-utils.c (prepare_resume_reply): New stop reasons "vfork"
and "vforkdone" for RSP 'T' Stop Reply Packet.
* server.h (report_vfork_events): Declare
global variable.
gdb/ChangeLog:
* remote.c (remove_vfork_event_p): New function.
(remote_follow_fork): Add vfork event type to event checking.
(remote_parse_stop_reply): New stop reasons "vfork" and
"vforkdone" for RSP 'T' Stop Reply Packet.
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