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.
Implement a "generate-core-file" command in gdb, save target state.
* gcore.c: New file. Implement new command 'generate-core-file'.
Save a corefile image of the current state of the inferior.
* linux-proc.c: Add linux-specific code for saving corefiles.
* target.h (struct target_ops): Add new target vectors for saving
corefiles; to_find_memory_regions and to_make_corefile_notes.
(target_find_memory_regions): New macro.
(target_make_corefile_notes): New macro.
* target.c (update_current_target): Inherit new target methods.
(dummy_find_memory_regions): New place-holder method.
(dummy_make_corefile_notes): New place-holder method.
(init_dummy_target): Initialize new dummy target vectors.
* exec.c (exec_set_find_memory_regions): New function.
Allow the exec_ops vector for memory regions to be taken over.
(exec_make_note_section): New function, target vector method.
* defs.h (exec_set_find_memory_regions): Export prototype.
* procfs.c (proc_find_memory_regions): New function, corefile method.
(procfs_make_note_section): New function, corefile method.
(init_procfs_ops): Set new target vector pointers.
(find_memory_regions_callback): New function.
(procfs_do_thread_registers): New function.
(procfs_corefile_thread_callback): New function.
* sol-thread.c (sol_find_memory_regions): New function.
(sol_make_note_section): New function.
(init_sol_thread_ops): Initialize new target vectors.
* inftarg.c (inftarg_set_find_memory_regions): New function.
Allow to_find_memory_regions vector to be taken over.
(inftarg_set_make_corefile_notes): New function.
Allow to_make_corefile_notes vector to be taken over.
* thread-db.c (thread_db_new_objfile): Don't activate thread-db
interface layer if not target_has_execution (may be a corefile).
* config/i386/linux.mh: Add gcore.o to NATDEPFILES.
* config/sparc/sun4sol2.mh: Ditto.
* config/alpha/alpha-linux.mh: Ditto.
* config/arm/linux.mh: Ditto.
* config/i386/x86-64linux.mh: Ditto.
* config/ia64/linux.mh: Ditto.
* config/m68k/linux.mh: Ditto.
* config/mips/linux.mh: Ditto.
* config/powerpc/linux.mh: Ditto.
* config/sparc/linux.mh: Ditto.
2000-04-20 Scott Bambrough <scottb@netwinder.org>
* arm-linux-nat.c (PIDGET, TIDGET): New.
(get_thread_id, GET_THREAD_ID): New.
(fetch_nwfpe_register, store_nwfpe_register): New.
(fetch_register, store_register): New.
(fetch_fpregister, store_fpregister): New.
(fill_gregset, supply_gregset): New.
(fill_fpregset, supply_fpregset): New.
(fetch_fpregs): Modified to use thread id's.
(store_fpregs): Modified to use thread id's and
fetch_nwfpe_register.
(fetch_regs): Modified to use thread id's.
(store_regs): Modified to use thread id's.
(fetch_inferior_registers): Modified to handle single register
fetches.
(store_inferior_registers): Modified to handle single register
stores.
(arm_linux_register_u_addr): Removed.
* configure.tgt: Added gdbserver to configdirs for arm*-*-linux*.
* config/arm/linux.mh
(NATDEPFILES): Removed core-aout.o. Added core-regset.o.
(LOADLIBES): Define.
* config/arm/nm-linux.h: Include config/nm-linux.h.
(ATTACH_DETACH): Removed. Defined in config/nm-linux.h.
(REGISTER_U_ADDR): Removed.
(SVR4_SHARED_LIBS): Removed. Defined in config/nm-linux.h.
(#include "solib.h"): Removed. Included via config/nm-linux.h.
* config/arm/linux.mh (NATDEPFILES): Removed core-regset.o.
Not used. Required to get GDB to build on glibc 2.1.3.
* config/arm/tm-linux.h (LOWEST_PC): Undefine LOWEST_PC
before redefining. Gets rid of compiler warning.
Luis Machado
Jan Kratochvil
Kwok Yeung
Hui Zhu
Daniel Jacobowitz
Ulrich Weigand
Michael Snyder
Andrew Cagney
Phil Blundell
Kevin Buettner
Scott Bambrough
Jason Molenda