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2015-12-17Remove support for LinuxThreads and vendor 2.4 kernels w/ backported NPTLPedro Alves1-40/+0
Since we now rely on PTRACE_EVENT_CLONE being available (added in Linux 2.5.46), we're relying on NPTL. This commit removes the support for older LinuxThreads, as well as the workarounds for vendor 2.4 kernels with NPTL backported. - Rely on tkill being available. - Assume gdb doesn't get cancel signals. - Remove code that checks the LinuxThreads restart and cancel signals in the inferior. - Assume that __WALL is available. - Assume that non-leader threads report WIFEXITED. - Thus, no longer need to send signal 0 to check whether threads are still alive. - Update comments throughout. Tested on x86_64 Fedora 20, native and gdbserver. gdb/ChangeLog: * configure.ac: Remove tkill checks. * configure, config.in: Regenerate. * linux-nat.c: Remove HAVE_TKILL_SYSCALL check. Update top level comments. (linux_nat_post_attach_wait): Remove 'cloned' parameter. Use __WALL. (attach_proc_task_lwp_callback): Don't set the cloned flag. (linux_nat_attach): Adjust. (kill_lwp): Remove HAVE_TKILL_SYSCALL check. No longer fall back to 'kill'. (linux_handle_extended_wait): Use __WALL. Don't set the cloned flag. (wait_lwp): Use __WALL. Update comments. (running_callback, stop_and_resume_callback): Delete. (linux_nat_filter_event): Don't stop and resume all lwps. Don't check if the event LWP has previously exited. (check_zombie_leaders): Update comments. (linux_nat_wait_1): Use __WALL. (kill_wait_callback): Don't handle clone processes separately. Use __WALL instead. (linux_thread_alive): Delete. (linux_nat_thread_alive): Return true as long as the LWP is in the LWP list. (linux_nat_update_thread_list): Assume the kernel supports PTRACE_EVENT_CLONE. (get_signo): Delete. (lin_thread_get_thread_signals): Remove LinuxThreads references. No longer check __pthread_sig_restart / __pthread_sig_cancel in the inferior. * linux-nat.h (struct lwp_info) <cloned>: Delete field. * linux-thread-db.c: Update comments. (_initialize_thread_db): Remove LinuxThreads references. * nat/linux-waitpid.c (my_waitpid): No longer emulate __WALL. Pass down flags unmodified. * linux-waitpid.h (my_waitpid): Update documentation. gdb/gdbserver/ChangeLog: * linux-low.c (linux_kill_one_lwp): Remove references to LinuxThreads. (kill_lwp): Remove HAVE_TKILL_SYSCALL check. No longer fall back to 'kill'. (linux_init_signals): Delete. (initialize_low): Adjust. * thread-db.c (thread_db_init): Remove LinuxThreads reference.
2015-12-16Fix -Wno-unknown-warning support detectionPedro Alves1-2/+11
Ref: https://sourceware.org/ml/gdb/2015-12/msg00024.html We have code in configure.ac that tries to detect whether the compiler supports each warning and suppress it if not, but that doesn't work with "-Wno-" options, because gcc doesn't error out for -Wno-unknown-warning unless other diagnostics are being produced. See https://gcc.gnu.org/onlinedocs/gcc/Warning-Options.html. Handle this by checking whether -Wfoo works when we actually want -Wno-foo. gdb/ChangeLog: 2015-12-16 Pedro Alves <palves@redhat.com> * configure.ac (compiler warning flags): When testing a -Wno-foo option, check whether -Wfoo works instead. * configure: Regenerate. gdb/gdbserver/ChangeLog: 2015-12-16 Pedro Alves <palves@redhat.com> * configure.ac (compiler warning flags): When testing a -Wno-foo option, check whether -Wfoo works instead. * configure: Regenerate.
2015-11-19[C++] Default to -Werror in C++ mode tooPedro Alves1-5/+2
Both x86_64 GNU/Linux and x86_64 mingw-w64 build cleanly with --enable-targets=all. This enables -Werror by default in C++ mode too, in order to let the buildbot catch C++ build regressions for us. gdb/ChangeLog: 2015-11-19 Pedro Alves <palves@redhat.com> * configure.ac (ERROR_ON_WARNING): Don't check whether in C++ mode. * configure: Regenerate. gdb/gdbserver/ChangeLog: 2015-11-19 Pedro Alves <palves@redhat.com> * configure.ac (ERROR_ON_WARNING): Don't check whether in C++ mode. * configure: Regenerate.
2015-11-19[C++] Drop -fpermissive hackPedro Alves1-2/+1
Both x86_64 GNU/Linux and x86_64 mingw-w64 build cleanly with --enable-targets=all. Let's drop the -fpermissive hack, in order to let the buildbot catch C++ build regressions for us. gdb/ChangeLog: 2015-11-19 Pedro Alves <palves@redhat.com> * build-with-cxx.m4 (GDB_AC_BUILD_WITH_CXX): Remove -fpermissive. * configure: Regenerate. gdb/gdbserver/ChangeLog: 2015-11-19 Pedro Alves <palves@redhat.com> * configure: Regenerate.
2015-08-27gdb: Drop use of obsolete AC_TYPE_SIGNALPedro Alves1-33/+0
Since we're using sighandler_t, nothing else refers to RETSIGTYPE in gdb. (Actually, given gdb/remote.c has been assuming signal handlers return void for a long time, we could have gotten get rid of this even without gnulib's sighandler_t.) gdb/ChangeLog: 2015-08-27 Pedro Alves <palves@redhat.com> * configure.ac: Remove AC_TYPE_SIGNAL call. * configure, config.in: Regenerate.
2015-08-07configure: check for perf_event.h versionMarkus Metzger1-1/+26
Intel(R) Processor Trace support requires a recent linux/perf_event.h header. When GDB is built on an older system, Intel(R) Processor Trace will not be available and there is no indication in the configure and build log as to what went wrong. Check for a compatible linux/perf_event.h at configure-time. gdb/ * configure.ac: Check for PERF_ATTR_SIZE_VER5 in linux/perf_event.h * configure: Regenerate.
2015-08-06Yaakov Selkowitz: fixes for in-tree libiconvDJ Delorie1-223/+606
* Makefile.def (libiconv): Define bootstrap=true. Mark pdf/html/info as missing. (configure-gcc): Depend on all-libiconv. (all-gcc): Ditto. (configure-libcpp): Ditto. (all-libcpp): Ditto. (configure-intl): Ditto. (all-intl): Ditto. * Makefile.in: Regenerate. binutils/ * configure: Regenerate. gdb/ * Makefile.in (LIBICONV): Define. (CLIBS): Add LIBICONV. * acinclude.m4: Use config/iconv.m4 instead of custom AM_ICONV. * configure: Regenerate.
2015-07-24C++: handle glibc's ptrace(enum __ptrace_request, ...)Pedro Alves1-11/+98
Building in C++ mode issues ~40 warnings like this: ../../src/gdb/linux-nat.c: In function ‘int linux_handle_extended_wait(lwp_info*, int, int)’: ../../src/gdb/linux-nat.c:2016:51: warning: invalid conversion from ‘int’ to ‘__ptrace_request’ [-fpermissive] ptrace (PTRACE_GETEVENTMSG, pid, 0, &new_pid); The issue is that in glibc, ptrace's first parameter is an enum. That's not a problem if we pick the PTRACE_XXX requests from sys/ptrace.h, as those will be values of the corresponding enum. However, we have fallback definitions for PTRACE_XXX symbols when the system headers miss them (such as PTRACE_GETEVENTMSG above), and those are plain integer constants. E.g., nat/linux-ptrace.h: #define PTRACE_GETEVENTMSG 0x4201 One idea would be to fix this by defining those fallbacks like: -#define PTRACE_GETEVENTMSG 0x4201 +#define PTRACE_GETEVENTMSG ((enum __ptrace_request) 0x4201) However, while glibc's ptrace uses enum __ptrace_request for first parameter: extern long int ptrace (enum __ptrace_request __request, ...) __THROW; other libc's, like e.g., Android's bionic do not -- in that case, the first parameter is int: long ptrace(int request, pid_t pid, void * addr, void * data); So the fix I came up is to make configure/ptrace.m4 also detect the type of the ptrace's first parameter and defin PTRACE_TYPE_ARG1, as already does the for parameters 3-4, and then simply wrap ptrace with a macro that casts the first argument to the detected type. (I'm leaving adding a nicer wrapper for when we drop building in C). While this adds the wrapper, GNU/Linux files won't use it until the next patch, which makes all native GNU/Linux files include gdb_ptrace.h. gdb/ChangeLog: 2015-07-24 Pedro Alves <palves@redhat.com> * ptrace.m4 (ptrace tests): Test in C++ mode. Try with 'enum __ptrace_request as first parameter type instead of int. (PTRACE_TYPE_ARG1): Define. * nat/gdb_ptrace.h [!PTRACE_TYPE_ARG5] (ptrace): Define as wrapper that casts first argument to PTRACE_TYPE_ARG1. * config.in: Regenerate. * configure: Regenerate. gdb/gdbserver/ChangeLog: 2015-07-24 Pedro Alves <palves@redhat.com> * config.in: Regenerate. * configure: Regenerate.
2015-07-15Revert the previous 7 commits of: Validate binary before useJan Kratochvil1-51/+51
ddc98fbf2fd9e244a215a4d09e559180dc573a14 Create empty nat/linux-maps.[ch] and common/target-utils.[ch] 6e5b4429db0d66e2d0b27e1bcfe4709f3dae73ed Move gdb_regex* to common/ f7af1fcd759fa126612018a5916cf808df7bb8bc Prepare linux_find_memory_regions_full & co. for move 9904185cfde13d6c6849f1f042c8e3b74974cf08 Move linux_find_memory_regions_full & co. 700ca40f6fc1addd7238f4ab57f76c095ad3c99f gdbserver build-id attribute generator ca5268b6be265580b91ef75c1a1a9815f581ae42 Validate symbol file using build-id 0a94970d663a053c523f23ac0d71deb25a77f709 Tests for validate symbol file using build-id gdb/ChangeLog 2015-07-15 Jan Kratochvil <jan.kratochvil@redhat.com> Revert the previous 6 commits: Create empty nat/linux-maps.[ch] and common/target-utils.[ch]. Move gdb_regex* to common/ Prepare linux_find_memory_regions_full & co. for move Move linux_find_memory_regions_full & co. gdbserver build-id attribute generator Validate symbol file using build-id gdb/gdbserver/ChangeLog 2015-07-15 Jan Kratochvil <jan.kratochvil@redhat.com> Revert the previous 3 commits: Move gdb_regex* to common/ Move linux_find_memory_regions_full & co. gdbserver build-id attribute generator gdb/doc/ChangeLog 2015-07-15 Jan Kratochvil <jan.kratochvil@redhat.com> Revert the previous 2 commits: gdbserver build-id attribute generator Validate symbol file using build-id gdb/testsuite/ChangeLog 2015-07-15 Jan Kratochvil <jan.kratochvil@redhat.com> Revert the previous commit: Tests for validate symbol file using build-id.
2015-07-15Move gdb_regex* to common/Jan Kratochvil1-51/+51
Later patches need regex support also in gdbserver. gdb/ChangeLog 2015-07-15 Jan Kratochvil <jan.kratochvil@redhat.com> * Makefile.in (HFILES_NO_SRCDIR): Change gdb_regex.h to common/gdb_regex.h. (COMMON_OBS): Add gdb_regex.o. (gdb_regex.o): New. * common/common.m4 (GDB_AC_COMMON): Add gdb_use_included_regex, --without-included-regex and USE_INCLUDED_REGEX. * common/gdb_regex.c: New file from utils.c functions. * common/gdb_regex.h: Move it here from gdb_regex.h, update include file wrapping define name. * configure: Rebuilt. * configure.ac (gdb_use_included_regex, --without-included-regex) (USE_INCLUDED_REGEX): Move them to common/common.m4. * gdb_regex.h: Move it to common/gdb_regex.h. * utils.c: Remove include gdb_regex.h. (do_regfree_cleanup, make_regfree_cleanup, get_regcomp_error) (compile_rx_or_error): Move them to common/gdb_regex.c. gdb/gdbserver/ChangeLog 2015-07-15 Jan Kratochvil <jan.kratochvil@redhat.com> * Makefile.in (OBS): Add gdb_regex.o. (gdb_regex.o): New. * config.in: Rebuilt. * configure: Rebuilt.
2015-07-02configure: check for libiptMarkus Metzger1-0/+498
Check for libipt, an Intel(R) Processor Trace decoder library. The sources can be found on github at: https://github.com/01org/processor-trace gdb/ * configure.ac: Check for libipt * configure: Regenerate. * config.in: Regenerate. * Makefile.in (LIBIPT): New. (CLIBS): Add $LIBIPT. * NEWS: document new configure options
2015-06-10Introduce nat/linux-namespaces.[ch]Gary Benson1-1/+1
This commit introduces new shared files nat/linux-namespaces.[ch] containing code to support Linux namespaces that will be used by both GDB and gdbserver. gdb/ChangeLog: * configure.ac (AC_CHECK_FUNCS): Add setns. * config.in: Regenerate. * configure: Likewise. * nat/linux-namespaces.h: New file. * nat/linux-namespaces.c: Likewise. * Makefile.in (HFILES_NO_SRCDIR): Add nat/linux-namespaces.h. (linux-namespaces.o): New rule. * config/aarch64/linux.mh (NATDEPFILES): Add linux-namespaces.o. * config/alpha/alpha-linux.mh (NATDEPFILES): Likewise. * config/arm/linux.mh (NATDEPFILES): Likewise. * 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/powerpc/spu-linux.mh (NATDEPFILES): Likewise. * config/s390/linux.mh (NATDEPFILES): Likewise. * config/sparc/linux.mh (NATDEPFILES): Likewise. * config/sparc/linux64.mh (NATDEPFILES): Likewise. * config/tilegx/linux.mh (NATDEPFILES): Likewise. * config/xtensa/linux.mh (NATDEPFILES): Likewise. gdb/gdbserver/ChangeLog: * configure.ac (AC_CHECK_FUNCS): Add setns. * config.in: Regenerate. * configure: Likewise. * Makefile.in (SFILES): Add nat/linux-namespaces.c. (linux-namespaces.o): New rule. * configure.srv (srv_linux_obj): Add linux-namespaces.o.
2015-04-09Replace $zlibdir with $ZLIBDIR in LDFLAGSH.J. Lu1-2/+4
* acinclude.m4: (GDB_AC_CHECK_BFD): Set ZLIBDIR with $zlibdir. Replace $zlibdir with $ZLIBDIR in LDFLAGS. * configure: Regenerated.
2015-04-06Fallback to stub-termcap.c on all hostsPedro Alves1-6/+1
Currently building gdb is impossible without an installed termcap or curses library. But, GDB already has a very minimal termcap in the tree to handle this situation for Windows -- gdb/stub-termcap.c. This patch makes that the fallback for all hosts. Testing this on GNU/Linux (by simply hacking away the termcap/curses detection in gdb/configure.ac), we trip on: ../readline/libreadline.a(terminal.o): In function `_rl_init_terminal_io': /home/pedro/gdb/mygit/src/readline/terminal.c:527: undefined reference to `PC' /home/pedro/gdb/mygit/src/readline/terminal.c:528: undefined reference to `BC' /home/pedro/gdb/mygit/src/readline/terminal.c:529: undefined reference to `UP' /home/pedro/gdb/mygit/src/readline/terminal.c:538: undefined reference to `PC' /home/pedro/gdb/mygit/src/readline/terminal.c:539: undefined reference to `BC' /home/pedro/gdb/mygit/src/readline/terminal.c:540: undefined reference to `UP' These are globals that are normally defined by termcap (or ncurses' termcap emulation). Now, we could just define replacements in stub-termcap.c, but readline/terminal.c (at least the copy in our tree) has this: #if !defined (__linux__) && !defined (NCURSES_VERSION) # if defined (__EMX__) || defined (NEED_EXTERN_PC) extern # endif /* __EMX__ || NEED_EXTERN_PC */ char PC, *BC, *UP; #endif /* !__linux__ && !NCURSES_VERSION */ which can result in readline defining the globals too. That will usually work out in C, given that "-fcommon" is usually the default for C compilers, but that won't work for C++, or C with -fno-common (link fails with "multiple definition" errors)... Mirroring those #ifdef conditions in the stub termcap screams "brittle" to me -- I can see them changing in latter readline versions. Work around that by simply using __attribute__((weak)). Windows/PE/COFF's do support weak, but not on gcc 3.4 based toolchains (4.8.x does work). Given the file never needed the variables while it was Windows-only, just continue not defining them there. All other supported hosts should support this. gdb/ChangeLog: 2015-04-06 Pedro Alves <palves@redhat.com> Bernd Edlinger <bernd.edlinger@hotmail.de> * configure.ac: Remove the mingw32-specific stub-termcap.o fallback, and instead fallback to the stub termcap on all hosts. * configure: Regenerate. * stub-termcap.c [!__MINGW32__] (PC, BC, UP): Define as weak symbols.
2015-04-02Regenerate configure in bfd/binutils/gas/gdb/goldH.J. Lu1-2/+2
bfd/ * configure: Regenerated. binutils/ * configure: Regenerated. gas/ * configure: Regenerated. gdb/ * Makefile.in (top_srcdir): New. * configure: Regenerated. gold/ * configure: Regenerated.
2015-04-01Regenerate configure in bfd/binutils/gas/gdbH.J. Lu1-2/+4
bfd/ 2015-04-01 H.J. Lu <hongjiu.lu@intel.com> * configure: Regenerated. binutils/ 2015-04-01 H.J. Lu <hongjiu.lu@intel.com> * configure: Regenerated. gas/ 2015-04-01 H.J. Lu <hongjiu.lu@intel.com> * configure: Regenerated. gdb/ 2015-04-01 H.J. Lu <hongjiu.lu@intel.com> * configure: Regenerated.
2015-03-31Add --with-system-zlib in gdbH.J. Lu1-82/+15
This patch adds --with-system-zlib and removes --with-zlib in gdb. * Makefile.in (ZLIB): New. (ZLIBINC): Likewise. (INTERNAL_CFLAGS_BASE): Add $(ZLIBINC). (CLIBS): Add $(ZLIB). * acinclude.m4: (GDB_AC_CHECK_BFD): Add $zlibdir to LDFLAGS. Add -lz to LIBS. * gdb_bfd.c: Don't check HAVE_ZLIB_H to include <zlib.h>. * top.c (print_gdb_configuration): Remove --with-zlib and --without-zlib. * config.in: Regenerated. * configure: Likewise.
2015-03-13Remove HPUXJan Kratochvil1-106/+0
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.
2015-03-13Use kinfo_getvmmap on FreeBSD to enumerate memory regions.John Baldwin1-0/+60
Use kinfo_getvmmap from libutil on FreeBSD to enumerate memory regions in a running process instead of /proc/<pid>/map. FreeBSD systems do not mount procfs by default, but kinfo_getvmmap uses a sysctl that is always available. Skip memory regions for devices as well as regions an application has requested to not be dumped via the MAP_NOCORE flag to mmap or MADV_NOCORE advice to madvise. gdb/ChangeLog: * configure.ac: AC_CHECK_LIB(util, kinfo_getvmmap). * configure: Regenerate. * config.in: Regenerate. * fbsd-nat.c [!HAVE_KINFO_GETVMMAP] (fbsd_read_mapping): Don't define. (fbsd_find_memory_regions): Use kinfo_getvmmap to enumerate memory regions if present.
2015-03-11[guile] Run finalizers from GDB threadAndy Wingo1-0/+32
gdb/ChangeLog: * guile/guile.c (_initialize_guile): Disable automatic finalization, if Guile offers us that possibility. * guile/guile.c (call_initialize_gdb_module): * guile/scm-safe-call.c (gdbscm_with_catch): Arrange to run finalizers in appropriate places. * config.in (HAVE_GUILE_MANUAL_FINALIZATION): New definition. * configure.ac (AC_TRY_LIBGUILE): Add a check for scm_set_automatic_finalization_enabled. * configure: Regenerated.
2015-03-07Remove C-specific warnings from common warning setPedro Alves1-5/+6
Whoops, these are C specific, but I somehow missed the warnings before: cc1plus: warning: command line option ‘-Wmissing-prototypes’ is valid for C/ObjC but not for C++ [enabled by default] cc1plus: warning: command line option ‘-Wdeclaration-after-statement’ is valid for C/ObjC but not for C++ [enabled by default] cc1plus: warning: command line option ‘-Wmissing-parameter-type’ is valid for C/ObjC but not for C++ [enabled by default] cc1plus: warning: command line option ‘-Wold-style-declaration’ is valid for C/ObjC but not for C++ [enabled by default] cc1plus: warning: command line option ‘-Wold-style-definition’ is valid for C/ObjC but not for C++ [enabled by default] gdb/ChangeLog: 2015-03-07 Pedro Alves <palves@redhat.com> * configure.ac (build_warnings): Move -Wmissing-prototypes -Wdeclaration-after-statement -Wmissing-parameter-type -Wold-style-declaration -Wold-style-definition to the C-specific set. * configure: Regenerate. gdb/gdbserver/ChangeLog: 2015-03-07 Pedro Alves <palves@redhat.com> * configure.ac (build_warnings): Move -Wdeclaration-after-statement to the C-specific set. * configure: Regenerate.
2015-02-27Add --enable-build-with-cxx configure switchPedro Alves1-6/+374
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.
2015-02-27Create libiberty.m4, have GDB and GDBserver use itPedro Alves1-54/+215
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.
2015-02-26Rename windows-termcap.c -> stub-termcap.cPedro Alves1-1/+1
Preparation for using this on all hosts. Confirmed that --host=x86_64-w64-mingw32 still builds the stub termcap. gdb/ChangeLog: 2015-02-26 Pedro Alves <palves@redhat.com> * windows-termcap.c: Rename to ... * stub-termcap.c: ... this. Adjust header line. * Makefile.in (SFILES): Refer to stub-termcap.c instead of windows-termcap.c. * configure: Regenerate. * configure.ac: Refer to stub-termcap.o instead of windows-termcap.o. * gdb_curses.h: Mention stub-termcap.c instead of windows-termcap.c.
2015-02-18Factorize target program transformations in the GDB_AC_TRANSFORM macro.Jose E. Marchesi1-10/+14
This patch introduces a new M4 macro GDB_AC_TRANSFORM to avoid repeating the common idiom which is the transformation of target program names, i.e. from gdb to sparc64-linux-gnu-gdb. It also makes gdb/configure.ac and gdb/testsuite/configure.ac to use the new macro. gdb/ChangeLog: 2015-02-18 Jose E. Marchesi <jose.marchesi@oracle.com> * configure: Regenerated. * configure.ac: Use GDB_AC_TRANSFORM. * Makefile.in (aclocal_m4_deps): Added transform.m4. * acinclude.m4: sinclude transform.m4. * transform.m4: New file. (GDB_AC_TRANSFORM): New macro. gdb/testsuite/ChangeLog: 2015-02-18 Jose E. Marchesi <jose.marchesi@oracle.com> * configure: Regenerated. * configure.ac: Use GDB_AC_TRANSFORM. * aclocal.m4: sinclude ../transform.m4.
2015-02-17New probe type: DTrace USDT probes.Jose E. Marchesi1-1/+1
This patch adds a new type of probe to GDB: the DTrace USDT probes. The new type is added by providing functions implementing all the entries of the `probe_ops' structure defined in `probe.h'. The implementation is self-contained and does not depend on DTrace source code in any way. gdb/ChangeLog: 2015-02-7 Jose E. Marchesi <jose.marchesi@oracle.com> * breakpoint.c (BREAK_ARGS_HELP): Help string updated to mention the -probe-dtrace new vpossible value for PROBE_MODIFIER. * configure.ac (CONFIG_OBS): dtrace-probe.o added if BFD can handle ELF files. * Makefile.in (SFILES): dtrace-probe.c added. * configure: Regenerate. * dtrace-probe.c: New file. (SHT_SUNW_dof): New constant. (dtrace_probe_type): New enum. (dtrace_probe_arg): New struct. (dtrace_probe_arg_s): New typedef. (struct dtrace_probe_enabler): New struct. (dtrace_probe_enabler_s): New typedef. (dtrace_probe): New struct. (dtrace_probe_is_linespec): New function. (dtrace_dof_sect_type): New enum. (dtrace_dof_dofh_ident): Likewise. (dtrace_dof_encoding): Likewise. (DTRACE_DOF_ENCODE_LSB): Likewise. (DTRACE_DOF_ENCODE_MSB): Likewise. (dtrace_dof_hdr): New struct. (dtrace_dof_sect): Likewise. (dtrace_dof_provider): Likewise. (dtrace_dof_probe): Likewise. (DOF_UINT): New macro. (DTRACE_DOF_PTR): Likewise. (DTRACE_DOF_SECT): Likewise. (dtrace_process_dof_probe): New function. (dtrace_process_dof): Likewise. (dtrace_build_arg_exprs): Likewise. (dtrace_get_arg): Likewise. (dtrace_get_probes): Likewise. (dtrace_get_probe_argument_count): Likewise. (dtrace_can_evaluate_probe_arguments): Likewise. (dtrace_evaluate_probe_argument): Likewise. (dtrace_compile_to_ax): Likewise. (dtrace_probe_destroy): Likewise. (dtrace_gen_info_probes_table_header): Likewise. (dtrace_gen_info_probes_table_values): Likewise. (dtrace_probe_is_enabled): Likewise. (dtrace_probe_ops): New variable. (info_probes_dtrace_command): New function. (_initialize_dtrace_probe): Likewise. (dtrace_type_name): Likewise.
2015-01-22mingw32: fix windows-termcap/curses checkPedro Alves1-1/+1
When GDB is configured with "--without-tui --with-curses" or "--with-tui", $prefer_curses is set to yes. But, that still doesn't mean that curses will be used. configure will still search for the curses library, and continue building without it. That's done here: curses_found=no if test x"$prefer_curses" = xyes; then ... AC_SEARCH_LIBS(waddstr, [ncurses cursesX curses]) if test "$ac_cv_search_waddstr" != no; then curses_found=yes fi fi So if waddstr is not found, meaning curses is not really available, even though it'd be preferred, $prefer_curses is 'yes', but $curses_found is 'no'. So the right fix to tell whether we're linking with curses is $curses_found=yes. gdb/ChangeLog: 2015-01-22 Pedro Alves <palves@redhat.com> * configure.ac [*mingw32*]: Check $curses_found instead of $prefer_curses. * configure: Regenerate. * windows-termcap.c: Remove HAVE_CURSES_H, HAVE_NCURSES_H and HAVE_NCURSES_NCURSES_H checks.
2015-01-19Don't use windows-termcap.c when linking against a curses libraryEli Zaretskii1-3/+4
gdb/ 2015-01-17 Eli Zaretskii <eliz@gnu.org> * configure.ac [*mingw32*]: Only add windows-termcap.o to CONFIG_OBS if not building with a curses library. * configure: Regenerate. * windows-termcap.c: Include defs.h. Make the whole body empty if either one of HAVE_CURSES_H or HAVE_NCURSES_H or HAVE_NCURSES_NCURSES_H is defined.
2015-01-15Move safe_strerror to common/Sergio Durigan Junior1-0/+4
This patch moves safe_strerror from the gdb/{posix,mingw}-hdep.c files to the respective common/{posix,mingw}-strerror.c files. This is a preparation for the next patch, which shares a common code (to disable address space randomization when creating a new inferior). The patch has been regtested on Fedora 20 x86_64, and no regressions were found. gdb/ChangeLog 2015-01-15 Sergio Durigan Junior <sergiodj@redhat.com> * Makefile.in (ALLDEPFILES): Including common/mingw-strerror.c and common/posix-strerror.c. (posix-strerror.o): New rule. (mingw-strerror.o): Likewise. * common/common-utils.h (safe_strerror): Move prototype to here, from utils.h. * common/common.host: New file. * common/mingw-strerror.c: Likewise. * common/posix-strerror.c: Likewise. * configure: Regenerated. * configure.ac: Source common/common.host. Add variable common_host_obs to gdb_host_obs. * contrib/ari/gdb_ari.sh: Mention gdb/common/mingw-strerror.c and gdb/common/posix-strerror.c when warning about the use of strerror. * mingw-hdep.c (safe_strerror): Remove definition; move it to common/mingw-strerror.c. * posix-hdep.c (safe_strerror): Remove definition; move it to common/posix-hdep.c. * utils.h (safe_strerror): Remove prototype; move to common/common-utils.h. gdb/gdbserver/ChangeLog 2015-01-15 Sergio Durigan Junior <sergiodj@redhat.com> * Makefile.in (posix-strerror.o): New rule. (mingw-strerror.o): Likewise. * configure: Regenerated. * configure.ac: Source file ../common/common.host. Initialize new variable srv_host_obs. Add srv_host_obs to GDBSERVER_DEPFILES.
2015-01-14Detect 64-bit-ness in PowerPC Book III-EYao Qi1-1/+1
This patch is to teach both GDB and GDBServer to detect 64-bit inferior correctly. We find a problem that GDBServer is unable to detect on a e5500 core processor. Current GDBServer assumes that MSR is a 64-bit register, but MSR is a 32-bit register in Book III-E. This patch is to fix this problem by checking the right bit in MSR, in order to handle both Book III-S and Book III-E. In order to detect Book III-S and Book III-E, we check the PPC_FEATURE_BOOKE from the host's HWCAP (by getauxval on glibc >= 2.16. If getauxval doesn't exist, we implement the fallback by parsing /proc/self/auxv), because it should an invariant on the same machine cross different processes. In order to share code, I add nat/ppc-linux.c for both GDB and GDBserver side. gdb: 2015-01-14 Yao Qi <yao@codesourcery.com> * Makefile.in (ppc-linux.o): New rule. * config/powerpc/ppc64-linux.mh (NATDEPFILES): Add ppc-linux.o. * configure.ac: AC_CHECK_FUNCS(getauxval). * config.in: Re-generated. * configure: Re-generated. * nat/ppc-linux.h [__powerpc64__] (ppc64_64bit_inferior_p): Declare. * nat/ppc-linux.c: New file. * ppc-linux-nat.c (ppc_linux_target_wordsize) [__powerpc64__]: Call ppc64_64bit_inferior_p. gdb/gdbserver: 2015-01-14 Yao Qi <yao@codesourcery.com> * Makefile.in (SFILES): Add nat/ppc-linux.c. (ppc-linux.o): New rule. * configure.srv (powerpc*-*-linux*): Add ppc-linux.o. * configure.ac: AC_CHECK_FUNCS(getauxval). * config.in: Re-generated. * configure: Re-generated. * linux-ppc-low.c (ppc_arch_setup) [__powerpc64__]: Call ppc64_64bit_inferior_p
2014-12-17Fix MinGW compilationJan Kratochvil1-1/+1
On Sun, 14 Dec 2014 07:00:28 +0100, Yao Qi wrote: The build on mingw host is broken because mingw has no mkdtemp. ../../../git/gdb/compile/compile.c: In function 'get_compile_file_tempdir': ../../../git/gdb/compile/compile.c:194:3: error: implicit declaration of function 'mkdtemp' [-Werror=implicit-function-declaration] tempdir_name = mkdtemp (tname); ^ ../../../git/gdb/compile/compile.c:194:16: error: assignment makes pointer from integer without a cast [-Werror] tempdir_name = mkdtemp (tname); ^ cc1: all warnings being treated as errors In the end I have managed to test it by Wine myself: $ wine build_win32/gdb/gdb.exe -q build_win32/gdb/gdb.exe -ex start -ex 'compile code 1' -ex 'set confirm no' -ex quit [...] Temporary breakpoint 1, main (argc=1, argv=0x241418) at ../../gdb/gdb.c:29 29 args.argc = argc; Could not load libcc1.so: Module not found. Even if it managed to load libcc1.so (it needs host-dependent name libcc1.dll) then it would soon end up at least on: default_infcall_mmap: error (_("This target does not support inferior memory allocation by mmap.")); As currently there is only: linux-tdep.c: set_gdbarch_infcall_mmap (gdbarch, linux_infcall_mmap); While one could debug Linux targets from MS-Windows host I find it somehow overcomplicated now when we are trying to get it running at least on native Linux x86*. The 'compile' project needs a larger port effort to run on MS-Windows. gdb/ChangeLog 2014-12-17 Jan Kratochvil <jan.kratochvil@redhat.com> Fix MinGW compilation. * compile/compile.c (get_compile_file_tempdir): Call error if !HAVE_MKDTEMP. * config.in: Regenerate. * configure: Regenerate. * configure.ac (AC_CHECK_FUNCS): Add mkdtemp. gdb/testsuite/ChangeLog 2014-12-17 Jan Kratochvil <jan.kratochvil@redhat.com> Fix MinGW compilation. * gdb.compile/compile-ops.exp: Update untested message if !skip_compile_feature_tests. * gdb.compile/compile-setjmp.exp: Likewise. * gdb.compile/compile-tls.exp: Likewise. * gdb.compile/compile.exp: Likewise. * lib/gdb.exp (skip_compile_feature_tests): Check also "Command not supported on this host".
2014-12-13configure gdb/gnulib with --disable-largefile if largefile support disabled.Joel Brobecker1-0/+12
This patch mostly aims at fixing a GDB build failure on 32bit Solaris systems (Sparc and x86), due to a recent gnulib update adding the readlink module. But it might also fix related issues when configuring with --disable-largefile. A side-effect of the gnulib readlink module addition is that it caused largefile support to be added as well, and in particular gnulib/import/m4/largefile.m4 introduced the following new #define in gnulib's config.in: | +/* Number of bits in a file offset, on hosts where this is settable. */ | +#undef _FILE_OFFSET_BITS When defined to 64, it triggers an issue with procfs.h while trying to build sparc-sol2-nat.c: | #if !defined(_LP64) && _FILE_OFFSET_BITS == 64 | #error "Cannot use procfs in the large file compilation environment" | #endif As it turns out, this is a fairly familiar problem, and one of the reasons behind ACX_LARGEFILE having been created. In that macro, we have some code which disables largefile support on solaris hosts: | sparc-*-solaris*|i[3-7]86-*-solaris*) | changequote([,])dnl | # On native 32bit sparc and ia32 solaris, large-file and procfs support | # are mutually exclusive; and without procfs support, the bfd/ elf module | # cannot provide certain routines such as elfcore_write_prpsinfo | # or elfcore_write_prstatus. So unless the user explicitly requested | # large-file support through the --enable-largefile switch, disable | # large-file support in favor of procfs support. | test "${target}" = "${host}" -a "x$plugins" = xno \ | && : ${enable_largefile="no"} | ;; But gnulib ignores this fact, and so tries to determine how to enable large-file support irrespective of whether we want it or not. This patch fixes the issue by passing --disable-largefile to gnulib's configure when large-file support in GDB is disabled. This is done by first enhancing ACX_CONFIGURE_DIR to allow us to pass extra arguments to be passed to the configure command, and then by modifying GDB's configure to pass --disable-largefile if large-file support is disabled. gdb/ChangeLog: * acx_configure_dir.m4 (ACX_CONFIGURE_DIR): Add support for new "EXTRA-ARGS" parameter. * configure.ac: If large-file support is disabled in GDB, pass --disable-largefile to ACX_CONFIGURE_DIR call for "gnulib". * configure: Regenerate. gdb/gdbserver/ChangeLog: * configure.ac: If large-file support is disabled in GDBserver, pass --disable-largefile to ACX_CONFIGURE_DIR call for "gnulib". * configure: Regenerate. Tested by rebuilding on sparc-solaris and x86_64-linux (with gdbserver). This fixes the build failure on sparc-solaris. I also verified in gnulib's config.log file that we pass --disable-largefile in the solaris case, while we do not in the GNU/Linux case.
2014-11-28Use canonicalize_file_name unconditionallyYao Qi1-1/+1
gdb: 2014-11-28 Yao Qi <yao@codesourcery.com> * configure.ac (AC_CHECK_FUNCS): Remove canonicalize_file_name and realpath. * config.in: Re-generated. * configure: Re-generated. * utils.c (gdb_realpath): Remove code calling realpath, canonicalize_file_name and pathconf. [!_WIN32]: Call canonicalize_file_name.
2014-11-28Use lstat unconditionallyYao Qi1-1/+1
Since lstat gnulib module is imported, we can use it unconditionally. lstat usage was introduced by this patch https://sourceware.org/ml/gdb-patches/2012-01/msg00390.html during the review, it was suggested to import gnulib lstat module, but we didn't do that. gdb: 2014-11-28 Yao Qi <yao@codesourcery.com> * configure.ac (AC_CHECK_FUNCS): Remove lstat. * config.in, configure: Regenerate. * symfile.c (find_separate_debug_file_by_debuglink): Remove code checking HAVE_LSTAT is defined.
2014-11-28Use readlink unconditionallyYao Qi1-1/+1
Since readlink module is imported, we can use it unconditionally. This patch is to remove configure checks and HAVE_READLINK checks in code. It was mentioned in the patch below [RFA/commit] gdbserver: return ENOSYS if readlink not supported. https://sourceware.org/ml/gdb-patches/2012-02/msg00148.html to use readlink in gdbserver, but we chose something simple at that moment. gdb: 2014-11-28 Yao Qi <yao@codesourcery.com> * configure.ac (AC_CHECK_FUNCS): Remove readlink. * config.in, configure: Re-generate. * inf-child.c (inf_child_fileio_readlink): Don't check HAVE_READLINK is defined. gdb/gdbserver: 2014-11-28 Yao Qi <yao@codesourcery.com> * configure.ac(AC_CHECK_FUNCS): Remove readlink. * config.in, configure: Re-generate. * hostio.c (handle_unlink): Remove code checking HAVE_READLINK is defined.
2014-11-21Include alloca.h unconditionallyYao Qi1-190/+0
Since gnulib alloca module was imported, we can include alloca.h in both gdb and gdbserver unconditionally, so this patch adds inclusion of alloca.h in common-defs.h. This patch also removes AC_FUNC_ALLOCA in configure.ac because we don't need to check alloca any more. This patch below is removed in fact. [RFA/commit] include alloca.h if available. https://www.sourceware.org/ml/gdb-patches/2010-08/msg00566.html Since alloca.h is from gnulib now, we don't have to check malloc.h in configure and include malloc.h in code. This patch also remove them too. gdb: 2014-11-21 Yao Qi <yao@codesourcery.com> * common/common-defs.h: Include alloca.h * configure.ac: Don't invoke AC_FUNC_ALLOCA. * configure: Re-generated. * defs.h: Remove code handling alloca. * utils.c (gdb_realpath): Don't check HAVE_ALLOCA is defined or not. gdb/gdbserver: 2014-11-21 Yao Qi <yao@codesourcery.com> * configure.ac: Don't invoke AC_FUNC_ALLOCA. (AC_CHECK_HEADERS): Remove malloc.h. * configure: Re-generated. * config.in: Re-generated. * server.h: Don't include alloca.h and malloc.h. * gdbreplay.c: Don't check HAVE_ALLOCA_H is defined. Don't include malloc.h.
2014-10-17Delete Tru64 supportPedro Alves1-27/+0
This commit does most of the mechanical removal. IOW, the easy part. procfs.c isn't touched beyond removing a couple obvious bits that are guarded by a couple macros defined in config/alpha/nm-osf3.h. Going beyond that for procfs.c & co would be a harder excision that potentially affects Solaris. Some comments in the generic alpha code ABIs that may still be relevant and I wouldn't know what to do with them. That can always be done on a separate pass, preferably by someone who can test on alpha. A couple other spots have references to OSF/Tru64 and related files being removed, but it felt like removing them would make things worse, not better. We can revisit those when we next need to touch that code. I didn't remove a reference to osf in testsuite/lib/future.exp, as I believe that code is imported from DejaGNU. Built and tested on x86_64 Fedora 20, with --enable-targets=all. Tested that building for --target=alpha-osf3 on x86_64 Fedora 20 fails with: checking for default auto-load directory... $debugdir:$datadir/auto-load checking for default auto-load safe-path... $debugdir:$datadir/auto-load *** Configuration alpha-unknown-osf3 is obsolete. *** Support has been REMOVED. make[1]: *** [configure-gdb] Error 1 make[1]: Leaving directory `build-osf' make: *** [all] Error 2 gdb/ 2014-10-17 Pedro Alves <palves@redhat.com> * Makefile.in (ALL_64_TARGET_OBS): Remove alpha-osf1-tdep.o. (HFILES_NO_SRCDIR): Remove config/alpha/nm-osf3.h. (ALLDEPFILES): Remove alpha-nat.c, alpha-osf1-tdep.c and solib-osf.c. * NEWS: Mention that support for alpha*-*-osf* has been removed. * ada-lang.h [__alpha__ && __osf__] (ADA_KNOWN_RUNTIME_FILE_NAME_PATTERNS): Delete. * alpha-nat.c, alpha-osf1-tdep.c: Delete files. * alpha-tdep.c (alpha_gdbarch_init): Remove reference to GDB_OSABI_OSF1. * config/alpha/alpha-osf3.mh, config/alpha/nm-osf3.h: Delete files. * config/djgpp/fnchange.lst (config/alpha/alpha-osf1.mh) (config/alpha/alpha-osf2.mh, config/alpha/alpha-osf3.mh): Delete. * configure: Regenerate. * configure.ac: Remove references to osf. * configure.host: Handle alpha*-*-osf* in the obsolete hosts section. Remove all other references to osf. * configure.tgt: Add alpha*-*-osf* to the obsolete targets section. Remove all other references to osf. * dec-thread.c: Delete file. * defs.h (GDB_OSABI_OSF1): Delete. * inferior.h (START_INFERIOR_TRAPS_EXPECTED): New unconditionally defined. * osabi.c (gdb_osabi_names): Delete "OSF/1". * procfs.c (procfs_debug_inferior) [PROCFS_DONT_TRACE_FAULTS]: Delete code. (unconditionally_kill_inferior) [PROCFS_NEED_CLEAR_CURSIG_FOR_KILL]: Delete code. * solib-osf.c: Delete file. gdb/testsuite/ 2014-10-17 Pedro Alves <palves@redhat.com> * gdb.base/callfuncs.exp: emove references to osf. * gdb.base/sigall.exp: Likewise. * gdb.gdb/selftest.exp: Likewise. * gdb.hp/gdb.base-hp/callfwmall.exp: Likewise. * gdb.mi/non-stop.c: Likewise. * gdb.mi/pthreads.c: Likewise. * gdb.reverse/sigall-precsave.exp: Likewise. * gdb.reverse/sigall-reverse.exp: Likewise. * gdb.threads/pthreads.c: Likewise. * gdb.threads/pthreads.exp: Likewise. gdb/doc/ 2014-10-17 Pedro Alves <palves@redhat.com> * gdb.texinfo (Ada Tasks and Core Files): Delete mention of Tru64. (SVR4 Process Information): Delete mention of OSF/1.
2014-10-10Delete IRIX supportPedro Alves1-13/+0
This does most of the mechanical removal. IOW, the easy part. This doesn't touch procfs.c as that'd be a harder excision, potentially affecting Solaris. mips-tdep.c is left alone. E.g., I didn't delete the GDB_OSABI_IRIX enum value, nor references to it in mips-tdep.c. Some comments mentioning IRIX ABIs may still be relevant and I wouldn't know what to do with them. in That can always be done on a separate pass, preferably by someone who can test on MIPS. I didn't remove a reference to IRIX in testsuite/lib/future.exp, as I believe that code is imported from DejaGNU. Built and tested on x86_64 Fedora 20, with --enable-targets=all. Tested that building for --target=mips-sgi-irix6 on x86_64 Fedora 20 fails with: checking for default auto-load directory... $debugdir:$datadir/auto-load checking for default auto-load safe-path... $debugdir:$datadir/auto-load *** Configuration mips-sgi-irix6 is obsolete. *** Support has been REMOVED. make[1]: *** [configure-gdb] Error 1 make[1]: Leaving directory `/home/pedro/gdb/mygit/build-irix' make: *** [all] Error 2 gdb/ 2014-10-10 Pedro Alves <palves@redhat.com> * Makefile.in (ALL_TARGET_OBS): Remove mips-irix-tdep.o and solib-irix.o. (ALLDEPFILES): Remove mips-irix-tdep.c and solib-irix.c. (HFILES_NO_SRCDIR): Remove solib-irix.h. * NEWS: Mention that support for mips-sgi-irix5* mips-sgi-irix6* and been removed. * config/mips/irix5.mh, config/mips/irix6.mh: Delete files. * configure.ac: Remove references to IRIX. * configure.host: Add *-*-irix* to the obsolete hosts section. Remove all other references to irix. * irix5-nat.c, mips-irix-tdep.c, solib-irix.c, solib-irix.h: Delete files. gdb/testsuite/ 2014-10-10 Pedro Alves <palves@redhat.com> * gdb.base/bigcore.exp: Remove references to IRIX. * gdb.base/funcargs.exp: Likewise. * gdb.base/interrupt.exp: Likewise. * gdb.base/mips_pro.exp: Likewise. * gdb.base/nodebug.exp: Likewise. * gdb.base/setvar.exp: Likewise. * lib/gdb.exp (gdb_compile_shlib): Remove mips-sgi-irix* case.
2014-09-09PR guile/17367Doug Evans1-2/+36
gdb/ChangeLog: * acinclude.m4 (GDB_GUILE_PROGRAM_NAMES): Pass guile version as last parameter to pkg-config, not first. * configure.ac: Pass --with-guile provided pkg-config path to GDB_GUILE_PROGRAM_NAMES. * configure: Regenerate.
2014-09-08Fix for PR 17247: Block SIGCHLD while initializing Guile.Doug Evans1-26/+0
The problem here is that if a thread other than gdb's main thread gets a SIGCHLD (it's an asynchronous signal so the kernel will essentially pick a random thread) then gdb will hang if it is in sigsuspend when the SIGCHLD is delivered. The other thread will see the signal and the sigsuspend won't "wake up". Guile and libgc should be blocking SIGCHLD in their threads, but we need to work with Guile 2.0 and libgc 7.4. The problem first shows up in libgc 7.4 because it is the first release that enables multiple marker threads by default. gdb/ChangeLog: PR 17247 * guile.c: #include <signal.h>. (_initialize_guile): Block SIGCHLD while initializing Guile. Replaces the following, which is reverted. 2014-07-26 Doug Evans <xdje42@gmail.com> PR 17185 * configure.ac: Add check for header gc/gc.h. Add check for function setenv. * configure: Regenerate. * config.in: Regenerate. * guile/guile.c (_initialize_guile): Add workaround for libgc 7.4.0.
2014-08-29Introduce common/gdb_setjmp.hGary Benson1-35/+33
This commit creates a new file, common/gdb_setjmp.h, to hold some portability macros for setjmp/longjmp et al. that are used by the exceptions subsystem and by the demangler crash catcher. gdb/ChangeLog: * common/gdb_setjmp.h: New file. * Makefile.in (HFILES_NO_SRCDIR): Add common/gdb_setjmp.h. * configure.ac: Move sigsetjmp check... * common/common.m4: ...here. * configure: Regenerate. * cp-support.c (SIGJMP_BUF): Delete. (SIGSETJMP): Likewise. (SIGLONGJMP): Likewise. * exceptions.h (gdb_setjmp.h): Include. (setjmp.h): Do not include. (EXCEPTIONS_SIGJMP_BUF): Delete. (EXCEPTIONS_SIGSETJMP): Likewise. (EXCEPTIONS_SIGLONGJMP): Likewise. Replace all uses of EXCEPTIONS_SIG* macros with SIG* macros from gdb_setjmp.h. * exceptions.c: Likewise. gdb/gdbserver/ChangeLog: * config.in: Regenerate. * configure: Likewise.
2014-08-19Fix --diable-shared --enable-plugins build breakageAlan Modra1-230/+142
Directories that don't use libtool need to add -ldl (on most *nix hosts) to provide dlopen for libbfd. config/ * plugins.m4 (AC_PLUGINS): If plugins are enabled, add -ldl to LIBS via AC_SEARCH_LIBS. gdb/ * acinclude.m4 (GDB_AC_CHECK_BFD): Don't add -ldl. * config.in: Regenerate. sim/ppc/ * configure.ac: Invoke AC_PLUGINS. * config.in: Regenerate. and regen lots of configure files.
2014-08-13Fix build/17104Yao Qi1-0/+1
This patch is to fix the build error when GDB is configured as: CFLAGS=-Wall ./configure --with-babeltrace; make This patch adds one line of code in configure test to use local variable 'pos'. Note that we append -Werror to CFLAGS to catch the warning related to assignment to scope. See more in this thread https://sourceware.org/ml/gdb-patches/2014-08/msg00045.html 2014-08-13 Yao Qi <yao@codesourcery.com> PR build/17104 * configure.ac: Use local variable 'pos'. * configure: Regenerated.
2014-07-26PR guile/17146Doug Evans1-0/+64
* acinclude.m4 (GDB_GUILE_PROGRAM_NAMES): New macro. (GDB_GUILD_TARGET_FLAG, GDB_TRY_GUILD): New macros. * configure.ac: Try to use guild to compile an scm file, if it fails then disable guile support. * configure: Regenerate. * data-directory/Makefile.in (GUILE_SOURCE_FILES): Renamed from GUILE_FILE_LIST. (GUILE_COMPILED_FILES): New variable. (GUILE_FILES) Update. (GUILD, GUILD_TARGET_FLAG, GUILD_COMPILE_FLAGS): New variables. (stamp-guile): Compile scm files. * guile/guile.c (boot_guile_support): New function. (standard_throw_args_p): New function. (print_standard_throw_error, print_throw_error): New functions. (handle_boot_error): New function. (initialize_scheme_side): Rewrite to call boot_guile_support. * guile/lib/gdb/boot.scm: Update %load-compiled-path. Load gdb.go. * guile/lib/gdb/init.scm (%silence-compiler-warnings%): New function.
2014-07-26PR build/17105.Doug Evans1-0/+28
Tested with/without guile,python on amd64-linux. I'm not sure we still have to deal with shells that can't handle empty for lists, but I played it safe. Otherwise this patch would be a lot smaller (though a diff -b will still show the real changes). PR build/17105 * configure.ac: Add AM_CONDITIONALs for HAVE_PYTHON, HAVE_GUILE. * configure: Regenerate. * data-directory/Makefile.in (PYTHON_FILE_LIST): Renamed from PYTHON_FILES. (PYTHON_FILES): New variable. (GUILE_FILE_LIST): Renamed from GUILE_FILES. (GUILE_FILES): New variable. (stamp-python, install-python, uninstall-python): Handle empty file list. (stamp-guile, install-guile, uninstall-guile): Ditto.
2014-07-26PR 17185Doug Evans1-0/+26
PR 17185 describes a problem with using gdb+guile with libgc 7.4.0. The symptom is a hang in sigsuspend. [The thread referenced in the PR has the details.] It's not clear what the right fix is, or even where the bug is yet. This patch applies the same workaround Guile has applied. There is no functionality or real performance loss with this, and Guile has been using it for awhile. * configure.ac: Add check for header gc/gc.h. Add check for function setenv. * configure: Regenerate. * config.in: Regenerate. * guile/guile.c (_initialize_guile): Add workaround for libgc 7.4.0.
2014-06-19Demangler crash handlerGary Benson1-1/+1
This commit wraps calls to the demangler with a segmentation fault handler. The first time a segmentation fault is caught a core file is generated and the user is prompted to file a bug and offered the choice to exit or to continue their GDB session. A maintainence option is provided to allow the user to disable the crash handler if required. gdb/ 2014-06-19 Gary Benson <gbenson@redhat.com> * configure.ac [AC_CHECK_FUNCS] <sigaltstack>: New check. * configure: Regenerate. * config.in: Likewise. * main.c (signal.h): New include. (setup_alternate_signal_stack): New function. (captured_main): Call the above. * cp-support.c (signal.h): New include. (catch_demangler_crashes): New flag. (SIGJMP_BUF): New define. (SIGSETJMP): Likewise. (SIGLONGJMP): Likewise. (gdb_demangle_jmp_buf): New static global. (gdb_demangle_attempt_core_dump): Likewise. (gdb_demangle_signal_handler): New function. (gdb_demangle): If catch_demangler_crashes is set, install the above signal handler before calling bfd_demangle, and restore the original signal handler afterwards. Display the offending symbol and call demangler_warning the first time a segmentation fault is caught. (_initialize_cp_support): New maint set/show command. gdb/doc/ 2014-06-19 Gary Benson <gbenson@redhat.com> * gdb.texinfo (Maintenance Commands): Document new "maint set/show catch-demangler-crashes" option.
2014-06-05Make it easy to make --disable-werror the default for both binutils and gdbJoel Brobecker1-1/+1
The goal of this patch is to provide an easy way to make --disable-werror the default when building binutils, or the parts of binutils that need to get built when building GDB. In development mode, we want to continue making -Werror the default with GCC. But, when making releases, I think we want to make it as easy as possible for regular users to successfully build from sources. GDB already has this kind of feature to turn -Werror as well as the use of the libmcheck library. As GDB Release Manager, I take advantage of it to turn those off after having cut the branch. I'd like to be able to do the same for the binutils bits. And perhaps Tristan will want to do the same for his releases too (not sure, binutils builders might be a little savvier than GDB builders). This patch introduces a new file, called development.sh, which just sets a variable called $development. In our development branches (Eg. "master"), it's set to true. But setting it to false would allow us to change the default behavior of various development-related features to be turned off; in this case, it turns off the use of -Werror by default (use --enable-werror to turn it back on). bfd/ChangeLog: * development.sh: New file. * warning.m4 (AM_BINUTILS_WARNINGS): Source bfd/development.sh. Make -Werror the default with GCC only if DEVELOPMENT is true. * Makefile.am (CONFIG_STATUS_DEPENDENCIES): Add $(srcdir)/development.sh. * Makefile.in, configure: Regenerate. binutils/ChangeLog: * Makefile.am (CONFIG_STATUS_DEPENDENCIES): Add dependency on bfd's development.sh. * Makefile.in, configure: Regenerate. gas/ChangeLog: * Makefile.am (CONFIG_STATUS_DEPENDENCIES): Add dependency on bfd's development.sh. * Makefile.in, configure: Regenerate. gold/ChangeLog: * Makefile.am (CONFIG_STATUS_DEPENDENCIES): New. * Makefile.in, configure: Regenerate. gprof/ChangeLog: * Makefile.am (CONFIG_STATUS_DEPENDENCIES): Add dependency on bfd's development.sh. * Makefile.in, configure: Regenerate. ld/ChangeLog: * Makefile.am (CONFIG_STATUS_DEPENDENCIES): Add dependency on bfd's development.sh. * Makefile.in, configure: Regenerate. opcodes/ChangeLog: * Makefile.am (CONFIG_STATUS_DEPENDENCIES): Add dependency on bfd's development.sh. * Makefile.in, configure: Regenerate. gdb/ChangeLog: * development.sh: Delete. * Makefile.in (config.status): Adjust dependency on development.sh. * configure.ac: Adjust development.sh source call. * configure: Regenerate. gdb/gdbserver/ChangeLog: * configure.ac: Adjust development.sh source call. * Makefile.in (config.status): Adjust dependency on development.sh. * configure: Regenerate. Tested on x86_64-linux by building two ways: One with DEVELOPMENT set to true, and one with DEVELOPMENT set to false. In the first case, I could see the use of -Werror, while it disappeared in the second case.
2014-06-01guile: Allow compilation with Guile <= 2.0.5.Ludovic Courtès1-0/+18
gdb/ 2014-06-01 Ludovic Courtès <ludo@gnu.org> * configure.ac: When Guile is available, check for the availability of 'scm_new_smob'. * configure, config.h.in: Regenerate. * guile/guile-internal.h (scm_new_smob) [!HAVE_SCM_NEW_SMOB]: New function.
2014-05-26Add configure support for building with guile 2.2.Andy Wingo1-1/+1
* configure.ac (try_guile_versions): Allow building with guile 2.2. * configure: Regenerate.
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