2002-06-11 Daniel Jacobowitz <drow@mvista.com>
* gdbserver/thread-db.c: New file.
* gdbserver/proc-service.c: New file.
* gdbserver/acinclude.m4: New file.
* gdbserver/Makefile.in: Add GDBSERVER_LIBS, gdb_proc_service_h,
proc-service.o, and thread-db.o.
(linux-low.o): Add USE_THREAD_DB.
* gdbserver/acconfig.h: Add HAVE_PRGREGSET_T, HAVE_PRFPREGSET_T,
HAVE_LWPID_T, HAVE_PSADDR_T, and PRFPREGSET_T_BROKEN.
* gdbserver/aclocal.m4: Regenerated.
* gdbserver/config.in: Regenerated.
* gdbserver/configure: Regenerated.
* gdbserver/configure.in: Check for proc_service.h, sys/procfs.h,
thread_db.h, and linux/elf.h headrs.
Check for lwpid_t, psaddr_t, prgregset_t, prfpregset_t, and
PRFPREGSET_T_BROKEN. Introduce srv_thread_depfiles and USE_THREAD_DB.
Check for -lthread_db and thread support.
* gdbserver/configure.srv: Enable thread_db support for ARM, i386, MIPS,
PowerPC, and SuperH.
* gdbserver/i387-fp.c: Constify arguments.
* gdbserver/i387-fp.h: Likewise.
* gdbserver/inferiors.c: (struct thread_info): Renamed from
`struct inferior_info'. Remove PID member. Use generic inferior
list header. All uses updated.
(inferiors, signal_pid): Removed.
(all_threads): New variable.
(get_thread): Define.
(add_inferior_to_list): New function.
(for_each_inferior): New function.
(change_inferior_id): New function.
(add_inferior): Removed.
(remove_inferior): New function.
(add_thread): New function.
(free_one_thread): New function.
(remove_thread): New function.
(clear_inferiors): Use for_each_inferior and free_one_thread.
(find_inferior): New function.
(find_inferior_id): New function.
(inferior_target_data): Update argument type.
(set_inferior_target_data): Likewise.
(inferior_regcache_data): Likewise.
(set_inferior_regcache_data): Likewise.
* gdbserver/linux-low.c (linux_bp_reinsert): Remove.
(all_processes, stopping_threads, using_thrads)
(struct pending_signals, debug_threads, pid_of): New.
(inferior_pid): Replace with macro.
(struct inferior_linux_data): Remove.
(get_stop_pc, add_process): New functions.
(linux_create_inferior): Restore SIGRTMIN+1 before calling exec.
Use add_process and add_thread.
(linux_attach_lwp): New function, based on old linux_attach. Use
add_process and add_thread. Set stop_expected for new threads.
(linux_attach): New function.
(linux_kill_one_process): New function.
(linux_kill): Kill all LWPs.
(linux_thread_alive): Use find_inferior_id.
(check_removed_breakpoints, status_pending_p): New functions.
(linux_wait_for_process): Renamed from linux_wait_for_one_inferior.
Update. Use WNOHANG. Wait for cloned processes also. Update process
struct for the found process.
(linux_wait_for_event): New function.
(linux_wait): Use it. Support LWPs.
(send_sigstop, wait_for_sigstop, stop_all_processes)
(linux_resume_one_process, linux_continue_one_process): New functions.
(linux_resume): Support LWPs.
(REGISTER_RAW_SIZE): Remove.
(fetch_register): Use register_size instead. Call supply_register.
(usr_store_inferior_registers): Likewise. Call collect_register.
Fix recursive case.
(regsets_fetch_inferior_registers): Improve error message.
(regsets_store_inferior_registers): Add debugging.
(linux_look_up_symbols): Call thread_db_init if USE_THREAD_DB.
(unstopped_p, linux_signal_pid): New functions.
(linux_target_ops): Add linux_signal_pid.
(linux_init_signals): New function.
(initialize_low): Call it. Initialize using_threads.
* gdbserver/regcache.c (inferior_regcache_data): Add valid
flag.
(get_regcache): Fetch registers lazily. Add fetch argument
and update all callers.
(regcache_invalidate_one, regcache_invalidate): New
functions.
(new_register_cache): Renamed from create_register_cache.
Return the new regcache.
(free_register_cache): Change argument to a void *.
(registers_to_string, registers_from_string): Call get_regcache
with fetch flag set.
(register_data): Make static. Pass fetch flag to get_regcache.
(supply_register): Call get_regcache with fetch flag clear.
(collect_register): Call get_regcache with fetch flag set.
(collect_register_as_string): New function.
* gdbserver/regcache.h: Update.
* gdbserver/remote-utils.c (putpkt): Flush after debug output and use
stderr.
Handle input interrupts while waiting for an ACK.
(input_interrupt): Use signal_pid method.
(getpkt): Flush after debug output and use stderr.
(outreg): Use collect_register_as_string.
(new_thread_notify, dead_thread_notify): New functions.
(prepare_resume_reply): Check using_threads. Set thread_from_wait
and general_thread.
(look_up_one_symbol): Flush after debug output.
* gdbserver/server.c (step_thread, server_waiting): New variables.
(start_inferior): Don't use signal_pid. Update call to mywait.
(attach_inferior): Update call to mywait.
(handle_query): Handle qfThreadInfo and qsThreadInfo.
(main): Don't fetch/store registers explicitly. Use
set_desired_inferior. Support proposed ``Hs'' packet. Update
calls to mywait.
* gdbserver/server.h: Update.
(struct inferior_list, struct_inferior_list_entry): New.
* gdbserver/target.c (set_desired_inferior): New.
(write_inferior_memory): Constify.
(mywait): New function.
* gdbserver/target.h: Update.
(struct target_ops): New signal_pid method.
(mywait): Removed macro, added prototype.
* gdbserver/linux-low.h (regset_func): Removed.
(regset_fill_func, regset_store_func): New.
(enum regset_type): New.
(struct regset_info): Add type field. Use new operation types.
(struct linux_target_ops): stop_pc renamed to get_pc.
Add decr_pc_after_break and breakpoint_at.
(get_process, get_thread_proess, get_process_thread)
(strut process_info, all_processes, linux_attach_lwp)
(thread_db_init): New.
* gdbserver/linux-arm-low.c (arm_get_pc, arm_set_pc,
arm_breakpoint, arm_breakpoint_len, arm_breakpoint_at): New.
(the_low_target): Add new members.
* gdbserver/linux-i386-low.c (i386_store_gregset, i386_store_fpregset)
(i386_store_fpxregset): Constify.
(target_regsets): Add new kind identifier.
(i386_get_pc): Renamed from i386_stop_pc. Simplify.
(i386_set_pc): Add debugging.
(i386_breakpoint_at): New function.
(the_low_target): Add new members.
* gdbserver/linux-mips-low.c (mips_get_pc, mips_set_pc)
(mips_breakpoint, mips_breakpoint_len, mips_reinsert_addr)
(mips_breakpoint_at): New.
(the_low_target): Add new members.
* gdbserver/linux-ppc-low.c (ppc_get_pc, ppc_set_pc)
(ppc_breakpoint, ppc_breakpoint_len, ppc_breakpoint_at): New.
(the_low_target): Add new members.
* gdbserver/linux-sh-low.c (sh_get_pc, sh_set_pc)
(sh_breakpoint, sh_breakpoint_len, sh_breakpoint_at): New.
(the_low_target): Add new members.
* gdbserver/linux-x86-64-low.c (target_regsets): Add new kind
identifier.
2002-06-11 19:32:40 +02:00
|
|
|
dnl gdb/gdbserver/configure.in uses BFD_HAVE_SYS_PROCFS_TYPE.
|
2005-02-24 21:26:32 +01:00
|
|
|
sinclude(../../bfd/bfd.m4)
|
2002-06-11 Daniel Jacobowitz <drow@mvista.com>
* gdbserver/thread-db.c: New file.
* gdbserver/proc-service.c: New file.
* gdbserver/acinclude.m4: New file.
* gdbserver/Makefile.in: Add GDBSERVER_LIBS, gdb_proc_service_h,
proc-service.o, and thread-db.o.
(linux-low.o): Add USE_THREAD_DB.
* gdbserver/acconfig.h: Add HAVE_PRGREGSET_T, HAVE_PRFPREGSET_T,
HAVE_LWPID_T, HAVE_PSADDR_T, and PRFPREGSET_T_BROKEN.
* gdbserver/aclocal.m4: Regenerated.
* gdbserver/config.in: Regenerated.
* gdbserver/configure: Regenerated.
* gdbserver/configure.in: Check for proc_service.h, sys/procfs.h,
thread_db.h, and linux/elf.h headrs.
Check for lwpid_t, psaddr_t, prgregset_t, prfpregset_t, and
PRFPREGSET_T_BROKEN. Introduce srv_thread_depfiles and USE_THREAD_DB.
Check for -lthread_db and thread support.
* gdbserver/configure.srv: Enable thread_db support for ARM, i386, MIPS,
PowerPC, and SuperH.
* gdbserver/i387-fp.c: Constify arguments.
* gdbserver/i387-fp.h: Likewise.
* gdbserver/inferiors.c: (struct thread_info): Renamed from
`struct inferior_info'. Remove PID member. Use generic inferior
list header. All uses updated.
(inferiors, signal_pid): Removed.
(all_threads): New variable.
(get_thread): Define.
(add_inferior_to_list): New function.
(for_each_inferior): New function.
(change_inferior_id): New function.
(add_inferior): Removed.
(remove_inferior): New function.
(add_thread): New function.
(free_one_thread): New function.
(remove_thread): New function.
(clear_inferiors): Use for_each_inferior and free_one_thread.
(find_inferior): New function.
(find_inferior_id): New function.
(inferior_target_data): Update argument type.
(set_inferior_target_data): Likewise.
(inferior_regcache_data): Likewise.
(set_inferior_regcache_data): Likewise.
* gdbserver/linux-low.c (linux_bp_reinsert): Remove.
(all_processes, stopping_threads, using_thrads)
(struct pending_signals, debug_threads, pid_of): New.
(inferior_pid): Replace with macro.
(struct inferior_linux_data): Remove.
(get_stop_pc, add_process): New functions.
(linux_create_inferior): Restore SIGRTMIN+1 before calling exec.
Use add_process and add_thread.
(linux_attach_lwp): New function, based on old linux_attach. Use
add_process and add_thread. Set stop_expected for new threads.
(linux_attach): New function.
(linux_kill_one_process): New function.
(linux_kill): Kill all LWPs.
(linux_thread_alive): Use find_inferior_id.
(check_removed_breakpoints, status_pending_p): New functions.
(linux_wait_for_process): Renamed from linux_wait_for_one_inferior.
Update. Use WNOHANG. Wait for cloned processes also. Update process
struct for the found process.
(linux_wait_for_event): New function.
(linux_wait): Use it. Support LWPs.
(send_sigstop, wait_for_sigstop, stop_all_processes)
(linux_resume_one_process, linux_continue_one_process): New functions.
(linux_resume): Support LWPs.
(REGISTER_RAW_SIZE): Remove.
(fetch_register): Use register_size instead. Call supply_register.
(usr_store_inferior_registers): Likewise. Call collect_register.
Fix recursive case.
(regsets_fetch_inferior_registers): Improve error message.
(regsets_store_inferior_registers): Add debugging.
(linux_look_up_symbols): Call thread_db_init if USE_THREAD_DB.
(unstopped_p, linux_signal_pid): New functions.
(linux_target_ops): Add linux_signal_pid.
(linux_init_signals): New function.
(initialize_low): Call it. Initialize using_threads.
* gdbserver/regcache.c (inferior_regcache_data): Add valid
flag.
(get_regcache): Fetch registers lazily. Add fetch argument
and update all callers.
(regcache_invalidate_one, regcache_invalidate): New
functions.
(new_register_cache): Renamed from create_register_cache.
Return the new regcache.
(free_register_cache): Change argument to a void *.
(registers_to_string, registers_from_string): Call get_regcache
with fetch flag set.
(register_data): Make static. Pass fetch flag to get_regcache.
(supply_register): Call get_regcache with fetch flag clear.
(collect_register): Call get_regcache with fetch flag set.
(collect_register_as_string): New function.
* gdbserver/regcache.h: Update.
* gdbserver/remote-utils.c (putpkt): Flush after debug output and use
stderr.
Handle input interrupts while waiting for an ACK.
(input_interrupt): Use signal_pid method.
(getpkt): Flush after debug output and use stderr.
(outreg): Use collect_register_as_string.
(new_thread_notify, dead_thread_notify): New functions.
(prepare_resume_reply): Check using_threads. Set thread_from_wait
and general_thread.
(look_up_one_symbol): Flush after debug output.
* gdbserver/server.c (step_thread, server_waiting): New variables.
(start_inferior): Don't use signal_pid. Update call to mywait.
(attach_inferior): Update call to mywait.
(handle_query): Handle qfThreadInfo and qsThreadInfo.
(main): Don't fetch/store registers explicitly. Use
set_desired_inferior. Support proposed ``Hs'' packet. Update
calls to mywait.
* gdbserver/server.h: Update.
(struct inferior_list, struct_inferior_list_entry): New.
* gdbserver/target.c (set_desired_inferior): New.
(write_inferior_memory): Constify.
(mywait): New function.
* gdbserver/target.h: Update.
(struct target_ops): New signal_pid method.
(mywait): Removed macro, added prototype.
* gdbserver/linux-low.h (regset_func): Removed.
(regset_fill_func, regset_store_func): New.
(enum regset_type): New.
(struct regset_info): Add type field. Use new operation types.
(struct linux_target_ops): stop_pc renamed to get_pc.
Add decr_pc_after_break and breakpoint_at.
(get_process, get_thread_proess, get_process_thread)
(strut process_info, all_processes, linux_attach_lwp)
(thread_db_init): New.
* gdbserver/linux-arm-low.c (arm_get_pc, arm_set_pc,
arm_breakpoint, arm_breakpoint_len, arm_breakpoint_at): New.
(the_low_target): Add new members.
* gdbserver/linux-i386-low.c (i386_store_gregset, i386_store_fpregset)
(i386_store_fpxregset): Constify.
(target_regsets): Add new kind identifier.
(i386_get_pc): Renamed from i386_stop_pc. Simplify.
(i386_set_pc): Add debugging.
(i386_breakpoint_at): New function.
(the_low_target): Add new members.
* gdbserver/linux-mips-low.c (mips_get_pc, mips_set_pc)
(mips_breakpoint, mips_breakpoint_len, mips_reinsert_addr)
(mips_breakpoint_at): New.
(the_low_target): Add new members.
* gdbserver/linux-ppc-low.c (ppc_get_pc, ppc_set_pc)
(ppc_breakpoint, ppc_breakpoint_len, ppc_breakpoint_at): New.
(the_low_target): Add new members.
* gdbserver/linux-sh-low.c (sh_get_pc, sh_set_pc)
(sh_breakpoint, sh_breakpoint_len, sh_breakpoint_at): New.
(the_low_target): Add new members.
* gdbserver/linux-x86-64-low.c (target_regsets): Add new kind
identifier.
2002-06-11 19:32:40 +02:00
|
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|
2012-04-19 Pedro Alves <palves@redhat.com>
gdb/
* Makefile.in (GNULIB_BUILDDIR): New.
(LIBGNU, INCGNU, GNULIB_H): Adjust.
(SUBDIRS): Add $(GNULIB_BUILDDIR).
(CLEANDIRS). Remove gnulib/import.
(REQUIRED_SUBDIRS): Replace gnulib/import with $(GNULIB_BUILDDIR).
(all-lib): Ditto.
(distclean): Remove the $(GNULIB_BUILDDIR) directory.
(gnulib/import/Makefile): Replace gnulib/import with
$(GNULIB_BUILDDIR). Set CONFIG_FILES to just Makefile.
(ACLOCAL_AMFLAGS): Remove '-I gnulib/import/m4'.
(aclocal_m4_deps): Remove the gnulib dependencies. Add
acx_configure_dir.m4.
* acinclude.m4: Include acx_configure_dir.m4.
* acx_configure_dir.m4: New file.
* aclocal.m4: Regenerate.
* configure.ac: Remove gl_EARLY, gl_INIT and AM_INIT_AUTOMAKE
calls. Configure gnulib using ACX_CONFIGURE_DIR.
(GNULIB): New variable.
(GNULIB_STDINT_H): Adjust.
(AC_OUTPUT): Don't output gnulib/Makefile.
* gdb/defs.h: Include build-gnulib/config.h.
* aclocal.m4: Regenerate.
* config.in: Regenerate.
* configure: Regenerate.
* gnulib/Makefile.in: New file.
* gnulib/configure.ac: New file.
* gnulib/aclocal.m4: New file.
* gnulib/config.in: New file.
* gnulib/configure: New file.
* gnulib/: Re-run gnulib-tool to adjust.
gdb/gdbserver/
* Makefile.in (GNULIB_BUILDDIR): New.
(LIBGNU, INCGNU, GNULIB_H): Adjust.
(SUBDIRS, CLEANDIRS, REQUIRED_SUBDIRS): New.
(all, install-only, uninstall, clean-info, all-lib, clean): No
longer pass GNULIB_FLAGS_TO_PASS. Use subdir_do.
(maintainer-clean realclean distclean): Use subdir_do.
(subdir_do): New.
(gnulib/import/Makefile): Adjust. Replace gnulib/import with
$(GNULIB_BUILDDIR). Don't pass argument to config.status.
* acinclude.m4: Include acx_configure_dir.m4.
* configure.ac: Remove gl_EARLY, gl_INIT, and AM_INIT_AUTOMAKE
calls. Call AC_PROG_RANLIB. Configure gnulib using
ACX_CONFIGURE_DIR.
(GNULIB): New.
(GNULIB_STDINT_H): Adjust.
(AC_OUTPUT): Don't output gnulib/Makefile anymore.
* gdbreplay.c: Include build-gnulib/config.h.
* server.h: Likewise.
* aclocal.m4: Regenerate.
* config.in: Regenerate.
* configure: Regenerate.
2012-04-19 21:34:52 +02:00
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|
sinclude(../acx_configure_dir.m4)
|
|
|
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|
|
On mainline/development, also link GDBserver with -lmcheck.
This factors --enable-libmcheck related bits from GDB's configure.ac
and makes GDBserver use them too. Specifically, the 'development'
global is moved to a separate script to it can be sourced by both GDB
and GDBserver, and the --enable-libmcheck/--disable-libmcheck bits
proper are moved to a new m4 file.
I started out by defining 'development' in the m4 file, but in the end
decided against it, as a separate script has the advantage that
changing it in release branches does not require regenerating
configure, unlike today.
I had also started out by making the new GDB_AC_LIBMCHECK itself
handle the yes/no default fallback depending on release/developement,
but since I had split out 'development' to a separate script, and, GDB
needs the python checks anyway (hence we'd need to do the python
checks in gdb's configure.ac, and pass in a 'default lmcheck yes/no'
parameter to GDB_AC_LIBMCHECK anyway), I ended up keeping
GDB_AC_LIBMCHECK isolated from the 'development' global. IOW, it's
the caller's business to handle it.
Tested on x86_64 Fedora 17. Built GDB and GDBserver with and without
--enable-libmcheck, and observed --enable-libmcheck overrides the
disablement of -lmcheck caused by python supporting threads, and that
GDBserver links with -lmcheck when expected. Also observed that
changing the 'development' global, and issuing "make" triggers a
relink, and '-lmcheck' is included or not from the link accordingly.
gdb/
2013-07-03 Pedro Alves <palves@redhat.com>
* Makefile.in (config.status): Depend on development.sh.
(aclocal_m4_deps): Add libmcheck.m4.
* acinclude.m4: Include libmcheck.m4.
* configure.ac: Source development.sh instead of setting
'development' here. --enable-libmcheck/--disable-libmcheck code
factored out to GDB_AC_LIBMCHECK. Run it.
* development.sh: New file.
* libmcheck.m4: New file.
* configure: Regenerate.
gdb/gdbserver/
2013-07-03 Pedro Alves <palves@redhat.com>
* Makefile.in (config.status): Depend on development.sh.
* acinclude.m4: Include libmcheck.m4.
* configure: Regenerate.
2013-07-03 15:25:46 +02:00
|
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# This gets GDB_AC_LIBMCHECK.
|
|
|
|
|
sinclude(../libmcheck.m4)
|
|
|
|
|
|
2008-04-23 14:21:50 +02:00
|
|
|
dnl This gets autoconf bugfixes
|
|
|
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|
sinclude(../../config/override.m4)
|
|
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|
2008-06-06 00:36:57 +02:00
|
|
|
dnl For ACX_PKGVERSION and ACX_BUGURL.
|
|
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|
sinclude(../../config/acx.m4)
|
|
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|
* Makefile.in (DEPMODE, DEPDIR, depcomp, COMPILE.pre)
(COMPILE.post, COMPILE, POSTCOMPILE, IPAGENT_COMPILE): New
macros.
(.c.o): Rewrite.
(ax-ipa.o, tracepoint-ipa.o, utils-ipa.o, format-ipa.o)
(common-utils-ipa.o, remote-utils-ipa.o, regcache-ipa.o)
(i386-linux-ipa.o, linux-i386-ipa.o, linux-amd64-ipa.o)
(amd64-linux-ipa.o, ax.o): Rewrite.
(event-loop.o, hostio.o, hostio-errno.o, inferiors.o, mem-break.o)
(proc-service.o, regcache.o, remote-utils.o, server.o, target.o)
(thread-db.o, tracepoint.o, utils.o, gdbreplay.o, dll.o): Remove.
(signals.o, linux-procfs.o, linux-ptrace.o, common-utils.o, vec.o)
(gdb_vecs.o, xml-utils.o, linux-osdata.o, ptid.o, buffer.o)
(format.o, agent.o, vasprintf.o, vsnprintf.o): Rewrite.
(i386-low.o, i387-fp.o, linux-low.o, linux-arm-low.o)
(linux-bfin-low.o, linux-cris-low.o, linux-crisv32-low.o)
(linux-ia64-low.o, linux-m32r-low.o, linux-mips-low.o)
(linux-ppc-low.o, linux-s390-low.o, linux-sh-low.o)
(linux-tic6x-low.o, linux-x86-low.o, linux-xtensa-low.o)
(linux-tile-low.o, lynx-low.o, lynx-ppc-low.o, nto-low.o)
(nto-x86-low.o, linux-low.o, win32-low.o, win32-arm-low.o)
(win32-i386-low.o, spu-low.o, reg-arm.o, arm-with-iwmmxt.o)
(arm-with-vfpv2.o, arm-with-vfpv3.o, arm-with-neon.o, reg-bfin.o)
(reg-cris.o, reg-crisv32.o, i386.o, i386-linux.o, i386-avx.o)
(i386-avx-linux.o, i386-mmx.o, i386-mmx-linux.o, reg-ia64.o)
(reg-m32r.o, reg-m68k.o, reg-cf.o, mips-linux.o, mips-dsp-linux.o)
(mips64-linux.o, mips64-dsp-linux.o, powerpc-32.o, powerpc-32l.o)
(powerpc-altivec32l.o, powerpc-cell32l.o, powerpc-vsx32l.o)
(powerpc-isa205-32l.o, powerpc-isa205-altivec32l.o)
(powerpc-isa205-vsx32l.o, powerpc-e500l.o, powerpc-64l.o)
(powerpc-altivec64l.o, powerpc-cell64l.o, powerpc-vsx64l.o)
(powerpc-isa205-64l.o, powerpc-isa205-altivec64l.o)
(powerpc-isa205-vsx64l.o, s390-linux32.o, s390-linux32v1.o)
(s390-linux32v2.o, s390-linux64.o, s390-linux64v1.o)
(s390-linux64v2.o, s390x-linux64.o, s390x-linux64v1.o)
(s390x-linux64v2.o, tic6x-c64xp-linux.o, tic6x-c64x-linux.o)
(tic6x-c62x-linux.o, reg-sh.o, reg-sparc64.o, reg-spu.o, amd64.o)
(amd64-linux.o, amd64-avx.o, amd64-avx-linux.o, x32.o)
(x32-linux.o, x32-avx.o, x32-avx-linux.o, reg-xtensa.o)
(reg-tilegx.o): Remove.
(all_object_files): New macro.
Include .deps files.
* aclocal.m4, configure: Rebuild.
* acinclude.m4: Include depstand.m4, lead-dot.m4.
* configure.ac: Invoke ZW_CREATE_DEPDIR,
ZW_PROG_COMPILER_DEPENDENCIES. Compute GMAKE condition.
2012-12-10 21:16:14 +01:00
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m4_include(../../config/depstand.m4)
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m4_include(../../config/lead-dot.m4)
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2013-04-24 18:45:45 +02:00
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dnl codeset.m4 is needed for common.m4, but not for
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dnl anything else in gdbserver.
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m4_include(../../config/codeset.m4)
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m4_include(../common/common.m4)
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Create libiberty.m4, have GDB and GDBserver use it
Converting GDB to be a C++ program, I stumbled on 'basename' issues,
like:
src/gdb/../include/ansidecl.h:169:64: error: new declaration ‘char* basename(const char*)’
/usr/include/string.h:597:26: error: ambiguates old declaration ‘const char* basename(const char*)’
which I believe led to this bit in gold's configure.ac:
dnl We have to check these in C, not C++, because autoconf generates
dnl tests which have no type information, and current glibc provides
dnl multiple declarations of functions like basename when compiling
dnl with C++.
AC_CHECK_DECLS([basename, ffs, asprintf, vasprintf, snprintf, vsnprintf, strverscmp])
These checks IIUC intend to generate all the HAVE_DECL_FOO symbols
that libiberty.h and ansidecl.h check.
GDB is missing these checks currently, which results in the conflict
shown above.
This adds an m4 file that both GDB and GDBserver's configury use to
pull in the autoconf checks that libiberty clients needs done in order
to use these libiberty.h/ansidecl.h.
gdb/ChangeLog:
2015-02-27 Pedro Alves <palves@redhat.com>
* libiberty.m4: New file.
* acinclude.m4: Include libiberty.m4.
* configure.ac: Call libiberty_INIT.
* config.in, configure: Regenerate.
gdb/gdbserver/
2015-02-27 Pedro Alves <palves@redhat.com>
* acinclude.m4: Include libiberty.m4.
* configure.ac: Call libiberty_INIT.
* config.in, configure: Regenerate.
2015-02-27 16:52:02 +01:00
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dnl For libiberty_INIT.
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m4_include(../libiberty.m4)
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Add --enable-build-with-cxx configure switch
This new option, disabled by default for now, allows specifying
whether to build GDB, GDBserver, and friends with a C++ (98/03)
compiler.
The name of the switch should be familiar to those who followed GCC's
own C++ conversion process.
. Adding -fpermissive to COMPILER in C++ mode (see the new
build-with-cxx.m4 file) makes errors like these be warnings instead:
gdb/infrun.c:6597:1: error: initializing argument 1 of ‘void sig_print_info(gdb_signal)’ [-fpermissive]
sig_print_info (enum gdb_signal oursig)
^
gdb/infrun.c: In function ‘void do_restore_infcall_suspend_state_cleanup(void*)’:
gdb/infrun.c:7164:39: error: invalid conversion from ‘void*’ to ‘infcall_suspend_state*’ [-fpermissive]
restore_infcall_suspend_state (state);
^
so that the compiler carries on compiling the file. -Werror still
catches the warnings, so nothing is lost, only our lifes are made
easier by concentrating on getting other more important things out of
the way first.
There's no way to quiet those warnings. Until they're all fixed, when
building in C++ mode, -Werror is disabled by default.
. Adding -Wno-narrowing suppresses thousands of instances of this warning:
gdb/arm-linux-tdep.c:439:1: error: narrowing conversion of ‘-1’ from ‘int’ to ‘ULONGEST {aka long unsigned int}’ inside { } is ill-formed in C++11 [-Werror=narrowing]
gdb/arm-linux-tdep.c:439:1: error: narrowing conversion of ‘-1l’ from ‘LONGEST {aka long int}’ to ‘ULONGEST {aka long unsigned int}’ inside { } is ill-formed in C++11 [-Werror=narrowing]
gdb/arm-linux-tdep.c:450:1: error: narrowing conversion of ‘-1’ from ‘int’ to ‘ULONGEST {aka long unsigned int}’ inside { } is ill-formed in C++11 [-Werror=narrowing]
We can defer handling those until we target C++11.
. Adding -Wno-sign-compare suppresses thousands of instances of this warning:
gdb/linux-record.c:1763:32: warning: comparison between signed and unsigned integer expressions [-Wsign-compare]
if (tmpulongest == tdep->fcntl_F_GETLK64)
^
. Adding -Wno-write-strings suppresses thousands of instances of this warning:
gdb/mi/mi-cmd-var.c: In function ‘void mi_cmd_var_show_attributes(char*, char**, int)’:
gdb/mi/mi-cmd-var.c:514:12: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings]
attstr = "editable";
^
gdb/mi/mi-cmd-var.c:516:12: warning: deprecated conversion from string constant to ‘char*’ [-Wwrite-strings]
attstr = "noneditable";
^
For now, it's best to hide these warnings from view until we're
'-fpermissive'-clean, and can thus start building with -Werror.
The C compiler has always managed to build working GDBs with these
issues in the code, so a C++ compiler should too.
gdb/ChangeLog:
2015-02-27 Pedro Alves <palves@redhat.com>
* Makefile.in (COMPILER): New, get it from autoconf.
(COMPILE.pre, CC_LD): Use COMPILER.
(CXX): Get from autoconf instead.
(CXX_FOR_TARGET): Default to g++ instead of gcc.
* acinclude.m4: Include build-with-cxx.m4.
* build-with-cxx.m4: New file.
* configure.ac: Call AC_PROG_CXX and GDB_AC_BUILD_WITH_CXX.
Disable -Werror by default if building in C++ mode.
(build_warnings): Add -Wno-sign-compare, -Wno-write-strings and
-Wno-narrowing in C++ mode. Only enable -Wpointer-sign in C mode.
Run supported-warning-flags tests with the C++ compiler.
Save/restore CXXFLAGS too.
* configure: Regenerate.
gdb/gdbserver/ChangeLog:
2015-02-27 Pedro Alves <palves@redhat.com>
* Makefile.in (COMPILER): New, get it from autoconf.
(CXX): Get from autoconf instead.
(COMPILE.pre): Use COMPILER.
(CC-LD): Rename to ...
(CC_LD): ... this. Use COMPILER.
(gdbserver$(EXEEXT), gdbreplay$(EXEEXT), $(IPA_LIB)): Adjust.
(CXX_FOR_TARGET): Default to g++ instead of gcc.
* acinclude.m4: Include build-with-cxx.m4.
* configure.ac: Call AC_PROG_CXX and GDB_AC_BUILD_WITH_CXX.
Disable -Werror by default if building in C++ mode.
(build_warnings): Add -Wno-sign-compare, -Wno-write-strings and
-Wno-narrowing in C++ mode. Run supported-warning-flags tests with
the C++ compiler. Save/restore CXXFLAGS too.
* configure: Regenerate.
2015-02-27 14:11:25 +01:00
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dnl For --enable-build-with-cxx and COMPILER.
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m4_include(../build-with-cxx.m4)
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2012-04-13 21:56:05 +02:00
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dnl Check for existence of a type $1 in libthread_db.h
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dnl Based on BFD_HAVE_SYS_PROCFS_TYPE in bfd/bfd.m4.
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AC_DEFUN([GDBSERVER_HAVE_THREAD_DB_TYPE],
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[AC_MSG_CHECKING([for $1 in thread_db.h])
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AC_CACHE_VAL(gdbserver_cv_have_thread_db_type_$1,
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[AC_TRY_COMPILE([
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#include <thread_db.h>],
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[$1 avar],
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gdbserver_cv_have_thread_db_type_$1=yes,
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gdbserver_cv_have_thread_db_type_$1=no
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)])
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if test $gdbserver_cv_have_thread_db_type_$1 = yes; then
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AC_DEFINE([HAVE_]translit($1, [a-z], [A-Z]), 1,
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[Define if <thread_db.h> has $1.])
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fi
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AC_MSG_RESULT($gdbserver_cv_have_thread_db_type_$1)
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])
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