IIUC it is a pre-requisite for IPv6 support, some UNICes do not support
getaddrinfo required for IPv6. But coincidentally such UNICes are no longer
really supported by GDB. Therefore it was concluded we can remove all such
UNICes and then we can implement IPv6 easily with getaddrinfo.
In mail
Re: getaddrinfo available on all GDB hosts? [Re: [PATCH v2] Add IPv6 support for remote TCP connections]
Message-ID: <20140211034157.GG5485@adacore.com>
https://sourceware.org/ml/gdb-patches/2014-02/msg00333.html
Joel said:
So I chose HP-UX first for this patch.
gdb/ChangeLog
2014-10-16 Jan Kratochvil <jan.kratochvil@redhat.com>
Remove HPUX.
* Makefile.in (ALL_64_TARGET_OBS): Remove ia64-hpux-tdep.o.
(ALL_TARGET_OBS): Remove hppa-hpux-tdep.o, solib-som.o and solib-pa64.o.
(HFILES_NO_SRCDIR): Remove solib-som.h, inf-ttrace.h, solib-pa64.h and
ia64-hpux-tdep.h, solib-ia64-hpux.h.
(ALLDEPFILES): Remove hppa-hpux-tdep.c, hppa-hpux-nat.c,
ia64-hpux-nat.c, ia64-hpux-tdep.c, somread.c and solib-som.c.
* config/djgpp/fnchange.lst: Remove hppa-hpux-nat.c and
hppa-hpux-tdep.c.
* config/ia64/hpux.mh: Remove file.
* config/pa/hpux.mh: Remove file.
* configure: Rebuilt.
* configure.ac (dlgetmodinfo, somread.o): Remove.
* configure.host (hppa*-*-hpux*, ia64-*-hpux*): Make them obsolete.
(ia64-*-hpux*): Remove its float format exception.
* configure.tgt (hppa*-*-hpux*, ia64-*-hpux*): Make them obsolete.
* hppa-hpux-nat.c: Remove file.
* hppa-hpux-tdep.c: Remove file.
* hppa-tdep.c (struct hppa_unwind_info, struct hppa_objfile_private):
Move them here from hppa-tdep.h
(hppa_objfile_priv_data, hppa_init_objfile_priv_data): Make it static.
(hppa_frame_prev_register_helper): Remove HPPA_FLAGS_REGNUM exception.
* hppa-tdep.h (struct hppa_unwind_info, struct hppa_objfile_private):
Move them to hppa-tdep.c.
(hppa_objfile_priv_data, hppa_init_objfile_priv_data): Remove
declarations.
* ia64-hpux-nat.c: Remove file.
* ia64-hpux-tdep.c: Remove file.
* ia64-hpux-tdep.h: Remove file.
* inf-ttrace.c: Remove file.
* inf-ttrace.h: Remove file.
* solib-ia64-hpux.c: Remove file.
* solib-ia64-hpux.h: Remove file.
* solib-pa64.c: Remove file.
* solib-pa64.h: Remove file.
* solib-som.c: Remove file.
* solib-som.h: Remove file.
* somread.c: Remove file.
This patch moves the shared code present on
gdb/linux-nat.c:linux_nat_create_inferior and
gdb/gdbserver/linux-low.c:linux_create_inferior to
nat/linux-personality.c. This code is responsible for disabling
address space randomization based on user setting, and using
<sys/personality.h> to do that. I decided to put the prototype of the
maybe_disable_address_space_randomization on nat/linux-osdata.h
because it seemed the best place to put it.
I regression-tested this patch on Fedora 20 x86_64, and found no
regressions.
gdb/ChangeLog
2015-01-15 Sergio Durigan Junior <sergiodj@redhat.com>
* Makefile.in (HFILES_NO_SRCDIR): Add nat/linux-personality.h.
(linux-personality.o): New rule.
* common/common-defs.h: Include <stdint.h>.
* config/aarch64/linux.mh (NATDEPFILES): Include
linux-personality.o.
* config/alpha/alpha-linux.mh (NATDEPFILES): Likewise.
* config/arm/linux.mh (NATDEPFILES): Likewise.
* config/i386/linux64.mh (NATDEPFILES): Likewise.
* config/i386/linux.mh (NATDEPFILES): Likewise.
* config/ia64/linux.mh (NATDEPFILES): Likewise.
* config/m32r/linux.mh (NATDEPFILES): Likewise.
* config/m68k/linux.mh (NATDEPFILES): Likewise.
* config/mips/linux.mh (NATDEPFILES): Likewise.
* config/pa/linux.mh (NATDEPFILES): Likewise.
* config/powerpc/linux.mh (NATDEPFILES): Likewise.
* config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise.
* config/powerpc/spu-linux.mh (NATDEPFILES): Likewise.
* config/s390/linux.mh (NATDEPFILES): Likewise.
* config/sparc/linux64.mh (NATDEPFILES): Likewise.
* config/sparc/linux.mh (NATDEPFILES): Likewise.
* config/tilegx/linux.mh (NATDEPFILES): Likewise.
* config/xtensa/linux.mh (NATDEPFILES): Likewise.
* defs.h: Remove #include <stdint.h> (moved to
common/common-defs.h).
* linux-nat.c: Include nat/linux-personality.h. Remove #include
<sys/personality.h>; do not define ADDR_NO_RANDOMIZE (moved to
nat/linux-personality.c).
(linux_nat_create_inferior): Remove code to disable address space
randomization (moved to nat/linux-personality.c). Create cleanup
to disable address space randomization.
* nat/linux-personality.c: New file.
* nat/linux-personality.h: Likewise.
gdb/gdbserver/ChangeLog
2015-01-15 Sergio Durigan Junior <sergiodj@redhat.com>
* Makefile.in (SFILES): Add linux-personality.c.
(linux-personality.o): New rule.
* configure.srv (srv_linux_obj): Add linux-personality.o to the
list of objects to be built.
* linux-low.c: Include nat/linux-personality.h.
(linux_create_inferior): Remove code to disable address space
randomization (moved to ../nat/linux-personality.c). Create
cleanup to disable address space randomization.
* configure: Rebuild.
* configure.ac: Add somread.o to the build if BFD has SOM
support.
* somread.c: Include som/aout.h, not syms.h.
(som_symtab_read): Use som_external_symbol_dictionary_record.
Unpack records manually.
(_initialize_somread): Declare.
* hppabsd-tdep.c (hppabsd_supply_gregset): Move to ...
(hppabsd_gregset): Move to ...
(hppabsd_regset_from_core_section): Rename
hppaobsd_regset_from_core_section and move to ...
(hppabsd_find_global_pointer): Update comment.
(hppabsd_init_abi): Make global. Do not register
hppabsd_regset_from_core_section.
(hppabsd_core_osabi_sniffer): Rename hppaobsd_core_osabi_sniffer and
move to ...
(_initialize_hppabsd_tdep): Move to ...
* hppaobsd-tdep.c: ... here. New file.
* hppnbsd-tdep.c: New file.
* hppnbsd-nat.c: New file.
* Makefile.in (ALL_TARGET_OBS): Add hppanbsd-tdep.o and hppaobsd-tdep.o.
(ALLDEPFILES): Add hppabsd-nat.c and hppabsd-tdep.c.
(hppabsd-nat.o, hppabsd-tdep.o): New dependencies.
(hppabsd-tdep.o, hppaobsd-tdep.o): Update dependencies.
* configure.host (hppa*-*-netbsd*): New entry.
* configure.tgt (hppa*-*-netbsd*): New entry.
(hppa*-*-openbsd*): Update.
* NEWS (New native configuration): Mention NetBSD/hppa.
(New targets): Mention NetBSD/hppa.
(COMMON_OBS): Remove hpacc-abi.o.
(ALLDEPFILES): Remove hpread.c and $(HPREAD_SOURCE).
(hpacc-abi.o, hpread.o): Delete rules.
* somread.c: Delete extern declarations from hpread.c.
(som_symfile_read): Do not call do_pxdb or hpread_build_psymtabs.
(som_symfile_finish): Do not call hpread_symfile_finish.
(som_symfile_init): Do not call hpread_symfile_init.
* config/pa/hppa64.mt (TDEPFILES): Remove hpread.o.
* config/pa/hppahpux.mt (TDEPFILES): Likewise.
* hpacc-abi.c, hpread.c: Deleted.
* gdbint.texinfo (SOM): Correct location of the SOM reader.
* config/alpha/alpha-linux.mt (DEPRECATED_TM_FILE): Set to tm-alpha.h.
* config/alpha/tm-alphalinux.h: Delete file.
* config/arm/linux.mt (DEPRECATED_TM_FILE): Set to tm-arm.h
* config/arm/tm-linux.h: Delete file.
* config/i386/tm-linux.h: Do not include "config/tm-linux.h".
* config/ia64/tm-linux.h: Do not include "config/tm-linux.h".
* config/m32r/linux.mt (DEPRECATED_TM_FILE): Remove.
* config/mips/tm-linux.h: Do not include "config/tm-linux.h".
* config/pa/linux.mt (DEPRECATED_TM_FILE): Set to tm-hppa.h.
* config/pa/tm-linux.h: Delete file.
* config/powerpc/tm-linux.h: Do not include "config/tm-linux.h".
* config/s390/linux.mt (DEPRECATED_TM_FILE): Remove.
* config/sh/linux.mt (DEPRECATED_TM_FILE): Set to tm-sh.h.
* config/sh/tm-linux.h: Delete file.
* alpha-linux-tdep.c: Include "symtab.h".
(alpha_linux_init_abi): Call set_gdbarch_skip_trampoline_code.
* i386-linux-tdep.c: Include "symtab.h".
(i386_linux_init_abi): Call set_gdbarch_skip_trampoline_code.
* ia64-linux-tdep.c: Include "symtab.h".
(ia64_linux_init_abi): Call set_gdbarch_skip_trampoline_code.
* m32r-linux-tdep.c: Include "symtab.h".
(m32r_linux_init_abi): Call set_gdbarch_skip_trampoline_code.
* mips-linux-tdep.c: Include "symtab.h".
(mips_linux_init_abi): Call set_gdbarch_skip_trampoline_code.
* sh-linux-tdep.c: Include "symtab.h".
(sh_linux_init_abi): Call set_gdbarch_skip_trampoline_code.
* s390-tdep.c (s390_gdbarch_init): Call
set_gdbarch_skip_trampoline_code.
* s390-nat.c: Do not include "tm.h".
* Makefile.in (alpha-linux-tdep.o): Add dependency on $(symtab_h).
(i386-linux-tdep.o): Likewise.
(ia64-linux-tdep.o): Likewise.
(m32r-linux-tdep.o): Likewise.
(mips-linux-tdep.o): Likewise.
(sh-linux-tdep.o): Likewise.
(s390-nat.o): Remove dependency on $(tm_h).
* hppa-hpux-tdep.c (initialize_hp_cxx_exception_support): Use
TDEP->is_elf to determine if we are working with a SOM binary.
(null_symtab_and_line): Remove unused variable.
* config/pa/hppa64.mt: Use tm-hppa.h.
* config/pa/tm-hppa64.h: Remove file.
Checkpoint/Restart for Linux.
* linux-nat.c: Add support for debugging multiple forks.
Add #include for linux-fork.h (interface spec).
(super_mourn_inferior): New function pointer.
(child_mourn_inferior): New function / target method.
(linux_target): Claim to_mourn_inferior method pointer.
(child_follow_fork): Call interface to linux-fork, conditionally
add new fork processes to list of debugged processes.
(kill_inferior): Use interface to linux-fork to kill
multiple processes.
* linux-fork.h: New file.
* linux-fork.c: New file. Support for debugging multiple forks
of the same program. Support for checkpoint and restart commands.
* infrun.c (nullify_last_target_wait_ptid): New function.
* Makefile.in: Add linux-fork.
* config/*/linux.mh: Add linux-fork.
* NEWS: Mention new functionality.
(alpha-linux-nat.o, sparc-linux-nat.o): New rules.
(amd64-linux-nat.o, arm-linux-nat.o, hppa-linux-nat.o)
(i386-linux-nat.o, ia64-linux-nat.o, linux-nat.o, m32r-linux-nat.o)
(m68klinux-nat.o, mips-linux-nat.o, ppc-linux-nat.o, s390-nat.o)
(sparc64-linux-nat.o): Update dependencies.
* alpha-linux-nat.c, sparc-linux-nat.c: New files.
* amd64-linux-nat.c (amd64_linux_fetch_inferior_registers): Renamed
from fetch_inferior_registers and made static.
(amd64_linux_store_inferior_registers): Renamed from
store_inferior_registers and made static.
(amd64_linux_child_post_start_inferior): Renamed from
child_post_startup_inferior and made static. Call
super_post_startup_inferior.
(super_post_startup_inferior): New.
(_initialize_amd64_linux_nat): Set it. Call linux_target and
add_target.
* arm-linux-nat.c (arm_linux_fetch_inferior_registers): Renamed
from fetch_inferior_registers and made static.
(arm_linux_store_inferior_registers): Renamed from
store_inferior_registers and made static.
(_initialize_arm_linux_nat): Add a prototype. Use linux_target and
add_target.
* hppa-linux-nat.c (hppa_linux_fetch_inferior_registers): Renamed
from fetch_inferior_registers and made static.
(hppa_linux_store_inferior_registers): Renamed from
store_inferior_registers and made static.
(_initialize_hppa_linux_nat): New function.
* i386-linux-nat.c (i386_linux_fetch_inferior_registers): Renamed
from fetch_inferior_registers and made static.
(i386_linux_store_inferior_registers): Renamed from
store_inferior_registers and made static.
(i386_linux_resume): Renamed from child_resume and made static.
(i386_linux_child_post_start_inferior): Renamed from
child_post_startup_inferior and made static. Call
super_post_startup_inferior.
(super_post_startup_inferior): New.
(_initialize_i386_linux_nat): New function.
* i386-nat.c: Remove LINUX_CHILD_POST_STARTUP_INFERIOR #ifndef.
* ia64-linux-nat.c (ia64_linux_xfer_unwind_table): Remove.
(super_xfer_partial): New.
(ia64_linux_xfer_partial): New function. Use it.
(_initialize_ia64_linux_nat): New function.
* ia64-tdep.c (getunwind_table): Revert 2005-06-08 change; use
target_read_partial and document the problem.
* inf-ptrace.c (inf_ptrace_fetch_register): Use
CANNOT_FETCH_REGISTER. Fix some comments.
(inf_ptrace_store_register): Use CANNOT_STORE_REGISTER. Fix some
comments.
* linux-nat.c: Include "inf-ptrace.h" and "auxv.h".
(linux_ops, super_xfer_partial): New variables.
(linux_child_post_startup_inferior): Make static.
(child_post_startup_inferior): Delete.
(linux_nat_attach, linux_nat_detach, resume_callback)
(linux_nat_resume, linux_nat_wait, linux_nat_create_inferior)
(linux_nat_mourn_inferior): Use linux_ops instead of
deprecated_child_ops.
(child_wait): Do not depend on CHILD_WAIT.
(linux_nat_xfer_memory): Remove, replace by ...
(linux_nat_xfer_partial): ... this. Use linux_ops->to_xfer_partial
instead of linux_proc_xfer_memory and child_xfer_memory.
(linux_nat_fetch_registers, linux_nat_store_registers)
(linux_nat_child_post_startup_inferior): New functions.
(init_linux_nat_ops): Use the new functions.
(linux_proc_xfer_memory): Remove, replace by ...
(linux_proc_xfer_partial): ... this. Make static.
(linux_xfer_partial, linux_register_u_offset, linux_target): New
functions.
(_initialize_linux_nat): Do not modify deprecated_child_ops.
* linux-nat.h (linux_proc_xfer_memory): Remove prototype.
(struct mem_attrib, struct target_ops): Remove forward declarations.
(linux_child_post_startup_inferior): Remove prototype.
(linux_target): Add prototype.
* linux-thread-db.c (thread_db_xfer_memory): Remove, replace by ...
(thread_db_xfer_partial): ... this.
(init_thread_db_ops): Set to_xfer_partial instead of
deprecated_xfer_memory.
* m32r-linux-nat.c (m32r_linux_fetch_inferior_registers): Renamed
from fetch_inferior_registers and made static.
(m32r_linux_store_inferior_registers): Renamed from
store_inferior_registers and made static.
(_initialize_m32r_linux_nat): New function.
* m68klinux-nat.c (m68k_linux_fetch_inferior_registers): Renamed
from fetch_inferior_registers and made static.
(m68k_linux_store_inferior_registers): Renamed from
store_inferior_registers and made static.
(old_fetch_inferior_registers, old_store_inferior_registers): Made
static.
(_initialize_m68k_linux_nat): Use linux_target and add_target.
* mips-linux-nat.c (_initialize_mips_linux_nat): New function.
* ppc-linux-nat.c (ppc_linux_fetch_inferior_registers): Renamed
from fetch_inferior_registers and made static.
(ppc_linux_store_inferior_registers): Renamed from
store_inferior_registers and made static.
(_initialize_ppc_linux_nat): New function.
* s390-nat.c (s390_linux_fetch_inferior_registers): Renamed
from fetch_inferior_registers and made static.
(s390_linux_store_inferior_registers): Renamed from
store_inferior_registers and made static.
(_initialize_s390_nat): New function.
* sparc64-linux-nat.c (_initialize_sparc64_linux_nat): Use
linux_target and add_target.
* config/nm-linux.h: Don't include "auxv.h".
(struct target_waitstatus, child_wait, CHILD_WAIT)
(CHILD_PID_TO_EXEC_FILE, CHILD_INSERT_FORK_CATCHPOINT)
(CHILD_INSERT_VFORK_CATCHPOINT, CHILD_INSERT_EXEC_CATCHPOINT)
(CHILD_POST_STARTUP_INFERIOR, CHILD_POST_ATTACH, CHILD_FOLLOW_FORK)
(DEPRECATED_KILL_INFERIOR, NATIVE_XFER_AUXV): Delete.
* config/alpha/alpha-linux.mh (NATDEPFILES): Replace infptrace.o
and inftarg.o with inf-ptrace.o and alpha-linux-nat.o.
* config/sparc/linux.mh (NATDEPFILES): Replace infptrace.o and
inftarg.o with sparc-linux-nat.o.
* config/sparc/linux64.mh (NATDEPFILES): Remove infptrace.o and
inftarg.o.
* config/arm/linux.mh (NATDEPFILES): Replace infptrace.o and
inftarg.o with inf-ptrace.o.
* config/i386/linux.mh (NATDEPFILES): Likewise.
* config/i386/linux64.mh (NATDEPFILES): Likewise.
* config/ia64/linux.mh (NATDEPFILES): Likewise.
* config/m32r/linux.mh (NATDEPFILES): Likewise.
* config/m68k/linux.mh (NATDEPFILES): Likewise.
* config/mips/linux.mh (NATDEPFILES): Likewise.
* config/pa/linux.mh (NATDEPFILES): Likewise.
* config/powerpc/linux.mh (NATDEPFILES): Likewise.
* config/powerpc/ppc64-linux.mh (NATDEPFILES): Likewise.
* config/s390/s390.mh (NATDEPFILES): Likewise.
* config/i386/nm-linux.h (DEPRECATED_CHILD_RESUME): Don't define.
(LINUX_CHILD_POST_STARTUP_INFERIOR): Don't define.
* config/i386/nm-linux64.h (LINUX_CHILD_POST_STARTUP_INFERIOR):
Don't define.
* config/ia64/nm-linux.h: Don't include "target.h".
(NATIVE_XFER_UNWIND_TABLE, ia64_linux_xfer_unwind_table): Remove.
* config/djgpp/fnchange.lst: Add alpha-linux-tdep.c,
alpha-linux-nat.c, sparc-linux-tdep.c, and sparc-linux-nat.c.
"inf-ptrace.h".
(hppabsd_fetch_registers): Renamed from fetch_inferior_registers;
made static.
(hppabsd_store_registers): Renamed from store_inferior_registers;
made static.
(_initialize_hppabsd_nat): New function and prototype.
* config/pa/obsd.mh (NATDEPFILES): Remove infptrace.o and
inftarg.o. Add inf-ptrace.o.
(NAT_FILE): Remove.
* Makefile.in (hppabsd-nat.o): Update dependencies.
* Makefile.in (pa64solib_h, somsolib_h): Delete.
(solib_pa64_h, solib_som_h): New.
(HFILES_NO_SRCDIR, ALLDEPFILES): Replace somsolib.h with solib-som.h.
(hppa-hpux-tdep.o, hpread.o): Update dependencies.
(pa64solib.o, somsolib.o): Delete.
(solib-pa64.o, solib-som.o): New.
* hppa-hpux-tdep.c: Include new solib interfaces.
(hppa_hpux_som_init_abi): Attach to SOM solib interface.
(hppa_hpux_elf_init_abi): Attach to PA64 ELF solib interface.
* hppa-tdep.c (internalize_unwinds): If solib_get_text_base method
is available, use it to determine the base of unwind records.
* hppa-tdep.h (gdbarch_tdep): Add new solib methods.
* hpread.c: Replace somsolib.h with solib-som.h.
(hpread_process_one_debug_symbol): Use target vector to get thread
start address.
* config/pa/hppa64.mt (TDEPFILES): Use new solib interface.
* config/pa/hppahpux.mt (TDEPFILES): Likewise.
* config/pa/hpux.mh (NATDEPFILES): Delete references to target objects.
* config/pa/tm-hppah.h: Use new solib interface.
* inf-ttrace.h: New file.
* hppa-hpux-nat.c [HAVE_TTRACE]: Include <sys/ttrace>.
Include "inf-ttrace.h".
(ss_mpsfu_high): Define to ss_tlsp if necessary.
(hppa_hpux_fetch_register, hppa_hpux_store_register): Use
ptid_get_pid instead of PIDGET. Modify to handle both ttrace and
ptrace systems.
(_initialize_hppa_hpux_nat) [HAVE_TTRACE]: Call inf_ttrace_traget
instead of inf_ptrace_target.
* config/pa/hpux.mh (NATDEPFILES): Add inf-ttrace.o.
* Makefile.in (inf_ttrace_h): New variable.
(hppa-hpux-nat.o): Update dependency.
(inf-ttrace.o): New dependency.
(ALLDEPFILES): Add inf-ptrace.c and inf-ttrace.c.
hpux-thread.c to suppress children from running.
(hppa_hpux_child_can_run): New function.
(_initialize_hppa_hpux_nat): Use hppa_hpux_child_can_run.
* hpux-thread.c: Include string.h and hppa-tdep.h.
(FLAGS_REGNUM, SP_REGNUM, PC_REGNUM): Rename to HPPA_FLAGS_REGNUM,
HPPA_SP_REGNUM and HPPA_PCOQ_HEAD_REGNUM, respectively.
(hpux_thread_store_registers): Replace deprecated_registers with
calls to regcache_raw_read.
* config/pa/hpux11.mh, config/pa/hpux11w.mh: Delete HOST_IPC.
* pa64solib.c (pa64_solib_thread_start_addr): Rename from
so_lib_thread_start_addr.
* pa64solib.h (so_list): Forward declare.
(pa64_solib_thread_start_addr): Prototype.
* somsolib.c (SHL_LOAD, SHL_UNLOAD): Define if not already defined.
(no_shared_libraries): Remove.
(som_solib_thread_start_addr): Rename from so_lib_thread_start_addr.
* somsolib.h (som_solib_thread_start_addr): Likewise; prototype.
* hpread.c (hpread_process_one_debug_symbol): Use either the som or
the elf solib handler to find the start address.
* config/pa/hppahpux.mh (NATDEPFILES): Move target-specific support
files to the target makefile.
* config/pa/hpux1020.mh (NATDEPFILES): Likewise.
* config/pa/hpux11.mh (NATDEPFILES): Likewise.
* config/pa/hpux11w.mh (NATDEPFILES): Likewise.
* config/pa/hppa64.mt (TDEPFILES): Put target-specific support
files for symbol reading and shared library handling here.
* config/pa/hppahpux.mt (TDEPFILES): Likewise.
(PA_SOM_ONLY): Define so we can build a 32-bit SOM only target
without bringing in 64-bit support.
Gary Benson
Jan Kratochvil
Mark Kettenis
Sergio Durigan Junior
Luis Machado
Tom Tromey
Kwok Yeung
Hui Zhu
Stan Shebs
Nick Hudson
Ulrich Weigand
Joel Brobecker
Daniel Jacobowitz
Randolph Chung
Michael Snyder
Andrew Cagney
Dave Anglin