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2017-11-22Target FP: Make use of MPFR if availableUlrich Weigand1-0/+3
This second patch introduces mfpr_float_ops, an new implementation of target_float_ops. This implements precise emulation of target floating-point formats using the MPFR library. This is then used to perform operations on types that do not match any host type. Note that use of MPFR is still not required. The patch adds a configure option --with-mpfr similar to --with-expat. If use of MPFR is disabled via the option or MPFR is not available, code will fall back to current behavior. This means that operations on types that do not match any host type will be implemented on the host long double type instead. A new test case verifies that we can correctly print the largest __float128 value now. gdb/ChangeLog: 2017-11-22 Ulrich Weigand <uweigand@de.ibm.com> * NEWS: Document use of GNU MPFR. * README: Likewise. * Makefile.in (LIBMPFR): Add define. (CLIBS): Add $(LIBMPFR). * configure.ac: Add --with-mpfr configure option. * configure: Regenerate. * config.in: Regenerate. * target-float.c [HAVE_LIBMPFR]: Include <mpfr.h>. (class mpfr_float_ops): New type. (mpfr_float_ops::from_target): Two new overloaded functions. (mpfr_float_ops::to_target): Likewise. (mpfr_float_ops::to_string): New function. (mpfr_float_ops::from_string): Likewise. (mpfr_float_ops::to_longest): Likewise. (mpfr_float_ops::from_longest): Likewise. (mpfr_float_ops::from_ulongest): Likewise. (mpfr_float_ops::to_host_double): Likewise. (mpfr_float_ops::from_host_double): Likewise. (mpfr_float_ops::convert): Likewise. (mpfr_float_ops::binop): Likewise. (mpfr_float_ops::compare): Likewise. (get_target_float_ops): Use mpfr_float_ops if available. gdb/doc/ChangeLog: 2017-11-22 Ulrich Weigand <uweigand@de.ibm.com> * gdb.texinfo (Requirements): Document use of GNU MPFR. gdb/testsuite/ChangeLog: 2017-11-22 Ulrich Weigand <uweigand@de.ibm.com> * gdb.base/float128.c (large128): New variable. * gdb.base/float128.exp: Add test to print largest __float128 value.
2017-11-06Don't check termio.h and sgtty.h in common/common.m4 eitherPedro Alves1-6/+0
common/common.m4 still had checks for termio.h/sgtty.h that are stale now. Remove them. gdb/ChangeLog: 2017-11-06 Pedro Alves <palves@redhat.com> * common/common.m4 (GDB_AC_COMMON): No longer check termio.h nor sgtty.h. * config.in, configure: Regenerate. gdb/gdbserver/ChangeLog: 2017-11-06 Pedro Alves <palves@redhat.com> * config.in, configure: Regenerate.
2017-09-26Allow linking GDB with ncurseswMatthias Klose1-0/+3
Triggered by https://launchpad.net/bugs/1275210, to be able to cope with UTF-8 characters in gdbtui. Reference: https://sourceware.org/ml/gdb-patches/2017-09/msg00356.html gdb/ChangeLog: 2017-09-26 Matthias Klose <doko@ubuntu.com> * configure.ac: Search ncursesw before ncurses. Check ncursesw/ncurses.h before ncurses/ncurses.h. * gdb_curses.h: Include <ncursesw/ncurses.h> * config.in, configure: Regenerate.
2017-09-26Remove support for Solaris < 10 (PR gdb/22185)Rainer Orth1-17/+0
Given that GCC has obsoleted/removed support for Solaris 9 in GCC 4.9/5 in 2013: https://gcc.gnu.org/gcc-4.9/changes.html https://gcc.gnu.org/ml/gcc-patches/2013-05/msg00728.html and the last gdb version that can be compiled with gcc 4.9 is 7.12.1 only when configured with --disable-build-with-cxx, it's time to obsolete/remove support for Solaris < 10. This patch does this, simplifying configure.nat along the way (only a single sol2 configuration with variants for i386 and sparc). Some configure checks for older Solaris versions can go, too, and the check for libthread_db.so.1 removed: * Since Solaris 10, dlopen has moved to libc and libdl.so is just a filter on ld.so.1, so no need to check. * $RDYNAMIC is already handled above (and is a no-op with Solaris ld anyway). Both proc-service.c and sol-thread.c lose support for (Solaris-only) PROC_SERVICE_IS_OLD. The attached revised patch has been tested on sparcv9-sun-solaris2.10, sparcv9-sun-solaris2.11.4, amd64-pc-solaris2.10, amd64-pc-solaris2.11.4, and x86_64-pc-linux-gnu. I've also started an i386-pc-solaris2.9 build to check that it really stops as expected. PR gdb/22185 * configure.host <*-*-solaris2.[01], *-*-solaris2.[2-9]*>: Mark as obsolete. Use gdb_host sol2 for i[34567]86-*-solaris2*, x86_64-*-solaris2*. Remove i386sol2 support. * configure.nat <i386sol2>: Remove. <sol2-64>: Fold into ... <sol2>: ... this. Move common settings to default section. Add sol-thread.o. * configure.tgt <i[34567]86-*-solaris2.1[0-9]*, x86_64-*-solaris2.1[0-9]*>: Rename to ... <i[34567]86-*-solaris2*, x86_64-*-solaris2*>: ... this. <i[34567]86-*-solaris*>: Remove. <sparc-*-solaris2.[0-6], sparc-*-solaris2.[0-6].*>: Remove. * configure.ac: Remove wctype in libw check. (_MSE_INT_H): Don't define on Solaris 7-9. <solaris*>: Remove libthread_db.so.1 check. * configure: Regenerate. * config.in: Regenerate. * proc-service.c: Remove PROC_SERVICE_IS_OLD handling. (gdb_ps_prochandle_t, gdb_ps_read_buf_t, gdb_ps_write_buf_t) (gdb_ps_size_t): Remove. Use base types in users. * sol-thread.c: Likewise, also for gdb_ps_addr_t. * NEWS (Changes since GDB 8.0): Document Solaris 2.0-9 removal.
2017-05-31config, btrace: check for pt_insn_event in libiptMarkus Metzger1-0/+9
Version 2 of libipt adds an event system to instruction flow decoders and deprecates indicating events via flags in struct pt_insn. Add configuration checks to determine which version we have. gdb/ * configure.ac: Check for pt_insn_event, struct pt_insn.enabled, and struct pt_insn.resynced. * configure: Regenerated. * config.in: Regenerated.
2016-10-31Remove IRIX 5 <sys/proc.h> _KMEMUSER workaroundMaciej W. Rozycki1-4/+0
Complement commit 3831839c089c ("Delete IRIX support") and remove the IRIX 5 <sys/proc.h> _KMEMUSER workaround from the `configure' script, as IRIX is no longer a supported host configuration. gdb/ * configure.ac <mips-sgi-irix5*>: Remove <sys/proc.h> _KMEMUSER workaround. * configure: Regenerate. * config.in: Regenerate.
2016-10-28gdb: Require C++11Pedro Alves1-0/+3
Use AX_CXX_COMPILE_STDCXX to detect if the compiler supports C++11, and if -std=xxx switches are necessary to enable C++11. We need to tweak AX_CXX_COMPILE_STDCXX a bit though. Pristine upstream AX_CXX_COMPILE_STDCXX appends -std=gnu++11 to CXX directly. That doesn't work for us, because the top level Makefile passes CXX down to subdirs, and that overrides whatever gdb/Makefile may set CXX to. The result would be that a make invocation from the build/gdb/ directory would use "g++ -std=gnu++11" as expected, while a make invocation at the top level would not. So instead of having AX_CXX_COMPILE_STDCXX set CXX directly, tweak it to AC_SUBST a separate variable -- CXX_DIALECT -- and use '$(CXX) (CXX_DIALECT)' to compile/link. Confirmed that this enables C++11 starting with gcc 4.8, the first gcc release with full C++11 support. Also confirmed that configure errors out gracefully with older GCC releases: checking whether /opt/gcc-4.7/bin/g++ supports C++11 features by default... no checking whether /opt/gcc-4.7/bin/g++ supports C++11 features with -std=gnu++11... no checking whether /opt/gcc-4.7/bin/g++ supports C++11 features with -std=gnu++0x... no checking whether /opt/gcc-4.7/bin/g++ supports C++11 features with -std=c++11... no checking whether /opt/gcc-4.7/bin/g++ supports C++11 features with -std=c++0x... no checking whether /opt/gcc-4.7/bin/g++ supports C++11 features with +std=c++11... no checking whether /opt/gcc-4.7/bin/g++ supports C++11 features with -h std=c++11... no configure: error: *** A compiler with support for C++11 language features is required. Makefile:9451: recipe for target 'configure-gdb' failed make[1]: *** [configure-gdb] Error 1 make[1]: Leaving directory '/home/pedro/brno/pedro/gdb/mygit/cxx-convertion/build-gcc-4.7' If we need to revert back to making C++11 optional, all that's necessary is to change the "mandatory" to "optional" in configure.ac and regenerate configure (both gdb and gdbserver). gdb/ChangeLog: 2016-10-28 Pedro Alves <palves@redhat.com> * Makefile.in (CXX_DIALECT): Get from configure. (COMPILE.pre, CC_LD): Append $(CXX_DIALECT). (FLAGS_TO_PASS): Pass CXX_DIALECT. * acinclude.m4: Include ax_cxx_compile_stdcxx.m4. * ax_cxx_compile_stdcxx.m4: Add FSF copyright header. Set and AC_SUBST CXX_DIALECT instead of changing CXX/CXXCPP. * configure.ac: Call AX_CXX_COMPILE_STDCXX. * config.in: Regenerate. * configure: Regenerate. gdb/gdbserver/ChangeLog: 2016-10-28 Pedro Alves <palves@redhat.com> * Makefile.in (CXX_DIALECT): Get from configure. (COMPILE.pre, CC_LD): Append $(CXX_DIALECT). * acinclude.m4: Include ../ax_cxx_compile_stdcxx.m4. * configure.ac: Call AX_CXX_COMPILE_STDCXX. * config.in: Regenerate. * configure: Regenerate.
2016-10-19Regen gdb/config.inPedro Alves1-3/+3
gdb/ChangeLog: 2016-10-19 Pedro Alves <palves@redhat.com> * config.in: Regenerate.
2016-06-24Add support for catching system calls to native FreeBSD targets.John Baldwin1-0/+3
All platforms on FreeBSD use a shared system call table, so use a single XML file to describe the system calls available on each FreeBSD platform. Recent versions of FreeBSD include the identifier of the current system call when reporting a system call entry or exit event in the ptrace_lwpinfo structure obtained via PT_LWPINFO in fbsd_wait. As such, FreeBSD native targets do not use the gdbarch method to fetch the system call code. In addition, FreeBSD register sets fetched via ptrace do not include an equivalent of 'orig_rax' (on amd64 for example), so the system call code cannot be extracted from the available registers during a system call exit. However, GDB assumes that system call catch points are not supported if the gdbarch method is not present. As a workaround, FreeBSD ABIs install a dummy gdbarch method that throws an internal_error if it is ever invoked. gdb/ChangeLog: * configure.ac: Check for support for system call LWP fields on FreeBSD. * config.in, configure: Rebuild. * data-directory/Makefile.in (SYSCALLS_FILES): Add freebsd.xml. * fbsd-nat.c (fbsd_wait) [HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE]: Report system call events. [HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE] (fbsd_set_syscall_catchpoint): New function. (fbsd_nat_add_target) [HAVE_STRUCT_PTRACE_LWPINFO_PL_SYSCALL_CODE]: Set "to_set_syscall_catchpoint" to "fbsd_set_syscall_catchpoint". * fbsd-tdep.c: Include xml-syscall.h (fbsd_get_syscall_number): New function. (fbsd_init_abi): Set XML system call file name. Add "get_syscall_number" gdbarch method. * syscalls/freebsd.xml: New file.
2016-05-17Add self-test framework to gdbTom Tromey1-0/+3
I wanted to unit test the Rust lexer, so I added a simple unit testing command to gdb. The intent is that self tests will only be compiled into gdb in development mode. In release mode they simply won't exist. So, this exposes $development to C code as GDB_SELF_TEST. In development mode, test functions are registered with the self test module. A test function is just a function that does some checks, and throws an exception on failure. Then this adds a new "maint selftest" command which invokes the test functions, and a new dejagnu test case that invokes it. 2016-05-17 Tom Tromey <tom@tromey.com> * NEWS: Add "maint selftest" entry. * selftest.h: New file. * selftest.c: New file. * maint.c: Include selftest.h. (maintenance_selftest): New function. (_initialize_maint_cmds): Add "maint selftest" command. * configure.ac (GDB_SELF_TEST): Maybe define. * config.in, configure: Rebuild. * Makefile.in (SFILES): Add selftest.c. (COMMON_OBS): Add selftest.o. 2016-05-17 Tom Tromey <tom@tromey.com> * gdb.texinfo (Maintenance Commands): Document "maint selftest". 2016-05-17 Tom Tromey <tom@tromey.com> * gdb.gdb/unittest.exp: New file.
2016-01-19Add support for LWP-based threads on FreeBSD.John Baldwin1-0/+3
Older versions of FreeBSD supported userland threading via a pure user-space threading library (N threads scheduled on 1 process) and a N:M model (N threads scheduled on M LWPs). However, modern FreeBSD versions only support a M:M threading model where each user thread is backed by a dedicated LWP. This thread target only supports this threading model. It also uses ptrace to query and alter LWP state directly rather than using libthread_db to simplify the implementation. FreeBSD recently gained support for reporting LWP events (birth and death of LWPs). GDB will use LWP events when present. For older systems it fetches the list of LWPs in the to_update_thread_list target op to update the list of threads on each stop. This target supports scheduler locking by using ptrace to suspend individual LWPs as necessary before resuming a process. gdb/ChangeLog: * configure.ac: Check for support for LWP names on FreeBSD. * fbsd-nat.c [PT_LWPINFO] New variable debug_fbsd_lwp. [TDP_RFPPWAIT || HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME] (fbsd_fetch_kinfo_proc): Move function earlier. [PT_LWPINFO] (fbsd_thread_alive): New function. [PT_LWPINFO] (fbsd_pid_to_str): New function. [HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME] (fbsd_thread_name): New function. [PT_LWP_EVENTS] (fbsd_enable_lwp_events): New function. [PT_LWPINFO] (fbsd_add_threads): New function. [PT_LWPINFO] (fbsd_update_thread_list): New function. [PT_LWPINFO] New variable super_resume. [PT_LWPINFO] (resume_one_thread_cb): New function. [PT_LWPINFO] (resume_all_threads_cb): New function. [PT_LWPINFO] (fbsd_resume): New function. (fbsd_remember_child): Save full ptid instead of plain pid. (fbsd_is_child_pending): Return ptid of saved child process. (fbsd_wait): Include lwp in returned ptid and switch to LWP ptid on first stop. [PT_LWP_EVENTS] Handle LWP events. [TDP_RFPPWAIT] Include LWP in child ptid. (fbsd_post_startup_inferior) [PT_LWP_EVENTS]: Enable LWP events. (fbsd_post_attach) [PT_LWP_EVENTS]: Enable LWP events. Add threads for existing processes. (fbsd_nat_add_target) [PT_LWPINFO]: Set "to_thread_alive" to "fbsd_thread_alive". Set "to_pid_to_str" to "fbsd_pid_to_str". [HAVE_STRUCT_PTRACE_LWPINFO_PL_TDNAME]: Set "to_thread_name" to "fbsd_thread_name". [PT_LWPINFO]: Set "to_update_thread_list" to "fbsd_update_thread_list". Set "to_has_thread_control" to "tc_schedlock". Set "to_resume" to "fbsd_resume". (_initialize_fbsd_nat): New function. * configure: Regenerate. * config.in: Regenerate. gdb/doc/ChangeLog: * gdb.texinfo (Debugging Output): Document "set/show debug fbsd-lwp".
2016-01-05Fix PR sim/13418: building with --enable-targets=all failsPedro Alves1-0/+3
Multitarget builds currently fail when: (1) simulator support is enabled (the main --target supports target sim) (2) powerpc is included in the --enable-targets list (3) powerpc is not the main/default target (--target) This is because the powerpc sim provides a non-standard API function sim_spr_register_name which gdb/rs6000-tdep.c utilizes. Since the sim does not yet support multitarget, only the sim (if one exists) for the main target is built. When that target isn't powerpc, this function is not available leading to linking errors: rs6000-tdep.c:(.text+0x1e34d): undefined reference to `sim_spr_register_name' Fix this by only using that API if the sim linked in is the powerpc sim. gdb/ChangeLog: 2016-01-05 Pedro Alves <palves@redhat.com> PR sim/13418 * configure.ac: Define WITH_PPC_SIM when linking in the sim and the target is powerpc*. * configure: Regenerate. * config.in: Regenerate.
2015-12-17Remove support for LinuxThreads and vendor 2.4 kernels w/ backported NPTLPedro Alves1-3/+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.
2015-08-27gdb: Drop use of obsolete AC_TYPE_SIGNALPedro Alves1-3/+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.
2015-07-24C++: handle glibc's ptrace(enum __ptrace_request, ...)Pedro Alves1-0/+3
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.
2015-07-02configure: check for libiptMarkus Metzger1-0/+3
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 Benson1-0/+3
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.
2015-03-31Add --with-system-zlib in gdbH.J. Lu1-3/+0
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.
2015-03-13Use kinfo_getvmmap on FreeBSD to enumerate memory regions.John Baldwin1-0/+3
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/+3
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.
2015-02-27Create libiberty.m4, have GDB and GDBserver use itPedro Alves1-0/+45
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.
2015-01-14Detect 64-bit-ness in PowerPC Book III-EYao Qi1-0/+3
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 Kratochvil1-0/+3
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".
2014-11-28Use canonicalize_file_name unconditionallyYao Qi1-6/+0
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 Qi1-3/+0
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 Qi1-3/+0
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.
2014-09-08Fix for PR 17247: Block SIGCHLD while initializing Guile.Doug Evans1-6/+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.
2014-08-19Fix --diable-shared --enable-plugins build breakageAlan Modra1-0/+3
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.
2014-07-26PR 17185Doug Evans1-0/+6
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 Benson1-0/+3
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.
2014-06-01guile: Allow compilation with Guile <= 2.0.5.Ludovic Courtès1-0/+3
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.
2014-02-09Add Guile as an extension language.Doug Evans1-0/+3
* NEWS: Mention Guile scripting. * Makefile.in (SUBDIR_GUILE_OBS): New variable. (SUBDIR_GUILE_SRCS, SUBDIR_GUILE_DEPS): New variables (SUBDIR_GUILE_LDFLAGS, SUBDIR_GUILE_CFLAGS): New variables. (INTERNAL_CPPFLAGS): Add GUILE_CPPFLAGS. (CLIBS): Add GUILE_LIBS. (install-guile): New rule. (guile.o): New rule. (scm-arch.o, scm-auto-load.o, scm-block.o): New rules. (scm-breakpoint.o, scm-disasm.o, scm-exception.o): New rules. (scm-frame.o, scm-iterator.o, scm-lazy-string.o): New rules. (scm-math.o, scm-objfile.o, scm-ports.o): New rules. (scm-pretty-print.o, scm-safe-call.o, scm-gsmob.o): New rules. (scm-string.o, scm-symbol.o, scm-symtab.o): New rules. (scm-type.o, scm-utils.o, scm-value.o): New rules. * configure.ac: New option --with-guile. * configure: Regenerate. * config.in: Regenerate. * auto-load.c: Remove #include "python/python.h". Add #include "gdb/section-scripts.h". (source_section_scripts): Handle Guile scripts. (_initialize_auto_load): Add name of Guile objfile script to scripts-directory help text. * breakpoint.c (condition_command): Tweak comment to include Scheme. * breakpoint.h (gdbscm_breakpoint_object): Add forward decl. (struct breakpoint): New member scm_bp_object. * defs.h (enum command_control_type): New value guile_control. * cli/cli-cmds.c: Remove #include "python/python.h". Add #include "extension.h". (show_user): Update comment. (_initialize_cli_cmds): Update help text for "show user". Update help text for max-user-call-depth. * cli/cli-script.c: Remove #include "python/python.h". Add #include "extension.h". (multi_line_command_p): Add guile_control. (print_command_lines): Handle guile_control. (execute_control_command, recurse_read_control_structure): Ditto. (process_next_line): Recognize "guile" commands. * disasm.c (gdb_disassemble_info): Make non-static. * disasm.h: #include "dis-asm.h". (struct gdbarch): Add forward decl. (gdb_disassemble_info): Declare. * extension.c: #include "guile/guile.h". (extension_languages): Add guile. (get_ext_lang_defn): Handle EXT_LANG_GDB. * extension.h (enum extension_language): New value EXT_LANG_GUILE. * gdbtypes.c (get_unsigned_type_max): New function. (get_signed_type_minmax): New function. * gdbtypes.h (get_unsigned_type_max): Declare. (get_signed_type_minmax): Declare. * guile/README: New file. * guile/guile-internal.h: New file. * guile/guile.c: New file. * guile/guile.h: New file. * guile/scm-arch.c: New file. * guile/scm-auto-load.c: New file. * guile/scm-block.c: New file. * guile/scm-breakpoint.c: New file. * guile/scm-disasm.c: New file. * guile/scm-exception.c: New file. * guile/scm-frame.c: New file. * guile/scm-gsmob.c: New file. * guile/scm-iterator.c: New file. * guile/scm-lazy-string.c: New file. * guile/scm-math.c: New file. * guile/scm-objfile.c: New file. * guile/scm-ports.c: New file. * guile/scm-pretty-print.c: New file. * guile/scm-safe-call.c: New file. * guile/scm-string.c: New file. * guile/scm-symbol.c: New file. * guile/scm-symtab.c: New file. * guile/scm-type.c: New file. * guile/scm-utils.c: New file. * guile/scm-value.c: New file. * guile/lib/gdb.scm: New file. * guile/lib/gdb/boot.scm: New file. * guile/lib/gdb/experimental.scm: New file. * guile/lib/gdb/init.scm: New file. * guile/lib/gdb/iterator.scm: New file. * guile/lib/gdb/printing.scm: New file. * guile/lib/gdb/types.scm: New file. * data-directory/Makefile.in (GUILE_SRCDIR): New variable. (VPATH): Add $(GUILE_SRCDIR). (GUILE_DIR): New variable. (GUILE_INSTALL_DIR, GUILE_FILES): New variables. (all): Add stamp-guile dependency. (stamp-guile): New rule. (clean-guile, install-guile, uninstall-guile): New rules. (install-only): Add install-guile dependency. (uninstall): Add uninstall-guile dependency. (clean): Add clean-guile dependency. doc/ * Makefile.in (GDB_DOC_FILES): Add guile.texi. * gdb.texinfo (Auto-loading): Add set/show auto-load guile-scripts. (Extending GDB): New menu entries Guile, Multiple Extension Languages. (Guile docs): Include guile.texi. (objfile-gdbdotext file): Add objfile-gdb.scm. (dotdebug_gdb_scripts section): Mention Guile scripts. (Multiple Extension Languages): New node. * guile.texi: New file. testsuite/ * configure.ac (AC_OUTPUT): Add gdb.guile. * configure: Regenerate. * lib/gdb-guile.exp: New file. * lib/gdb.exp (get_target_charset): New function. * gdb.base/help.exp: Update expected output from "apropos apropos". * gdb.guile/Makefile.in: New file. * gdb.guile/guile.exp: New file. * gdb.guile/scm-arch.c: New file. * gdb.guile/scm-arch.exp: New file. * gdb.guile/scm-block.c: New file. * gdb.guile/scm-block.exp: New file. * gdb.guile/scm-breakpoint.c: New file. * gdb.guile/scm-breakpoint.exp: New file. * gdb.guile/scm-disasm.c: New file. * gdb.guile/scm-disasm.exp: New file. * gdb.guile/scm-equal.c: New file. * gdb.guile/scm-equal.exp: New file. * gdb.guile/scm-error.exp: New file. * gdb.guile/scm-error.scm: New file. * gdb.guile/scm-frame-args.c: New file. * gdb.guile/scm-frame-args.exp: New file. * gdb.guile/scm-frame-args.scm: New file. * gdb.guile/scm-frame-inline.c: New file. * gdb.guile/scm-frame-inline.exp: New file. * gdb.guile/scm-frame.c: New file. * gdb.guile/scm-frame.exp: New file. * gdb.guile/scm-generics.exp: New file. * gdb.guile/scm-gsmob.exp: New file. * gdb.guile/scm-iterator.c: New file. * gdb.guile/scm-iterator.exp: New file. * gdb.guile/scm-math.c: New file. * gdb.guile/scm-math.exp: New file. * gdb.guile/scm-objfile-script-gdb.in: New file. * gdb.guile/scm-objfile-script.c: New file. * gdb.guile/scm-objfile-script.exp: New file. * gdb.guile/scm-objfile.c: New file. * gdb.guile/scm-objfile.exp: New file. * gdb.guile/scm-ports.exp: New file. * gdb.guile/scm-pretty-print.c: New file. * gdb.guile/scm-pretty-print.exp: New file. * gdb.guile/scm-pretty-print.scm: New file. * gdb.guile/scm-section-script.c: New file. * gdb.guile/scm-section-script.exp: New file. * gdb.guile/scm-section-script.scm: New file. * gdb.guile/scm-symbol.c: New file. * gdb.guile/scm-symbol.exp: New file. * gdb.guile/scm-symtab-2.c: New file. * gdb.guile/scm-symtab.c: New file. * gdb.guile/scm-symtab.exp: New file. * gdb.guile/scm-type.c: New file. * gdb.guile/scm-type.exp: New file. * gdb.guile/scm-value-cc.cc: New file. * gdb.guile/scm-value-cc.exp: New file. * gdb.guile/scm-value.c: New file. * gdb.guile/scm-value.exp: New file. * gdb.guile/source2.scm: New file. * gdb.guile/types-module.cc: New file. * gdb.guile/types-module.exp: New file.
2013-11-18don't check for stddef.hTom Tromey1-3/+0
gdb already unconditionally includes stddef.h in many places. I think there is no reason to check for its existence. Also, Zack Weinberg's header file survey agrees: http://hacks.owlfolio.org/header-survey/ This patch removes the configure check and the inclusion guards. It also removes a redundant inclusion that I noticed in defs.h. 2013-11-18 Tom Tromey <tromey@redhat.com> * config.in: Rebuild. * configure: Rebuild. * configure.ac: Don't check for stddef.h. * defs.h: Unconditionally include stddef.h. Remove duplicate inclusion.
2013-11-18remove gdb_dirent.hTom Tromey1-15/+0
This removes gdb_dirent.h and updates the code to use dirent.h instead. It also removes the now-useless configure checks. 2013-11-18 Tom Tromey <tromey@redhat.com> * common/common.m4 (GDB_AC_COMMON): Don't use AC_HEADER_DIRENT. * common/gdb_dirent.h: Remove. * common/filestuff.c: Use dirent.h. * common/linux-osdata.c: Use dirent.h. (NAMELEN): Define. * config.in: Rebuild. * configure: Rebuild. * configure.ac: Don't use AC_HEADER_DIRENT. * linux-fork.c: Use dirent.h * linux-nat.c: Use dirent.h. * nto-procfs.c: Use dirent.h. * procfs.c: Use dirent.h. 2013-11-18 Tom Tromey <tromey@redhat.com> * config.in: Rebuild. * configure: Rebuild. * configure.ac: Don't use AC_HEADER_DIRENT.
2013-11-08fix a comment in configure.acTom Tromey1-2/+1
My grepping around showed that HAVE_MULTIPLE_PROC_FDS is only ever mentioned in a comment in configure.ac. Since the macro is long dead, let's remove the last mention. 2013-11-08 Tom Tromey <tromey@redhat.com> * configure: Rebuild. * configure.ac: Remove mentions of HAVE_MULTIPLE_PROC_FDS.
2013-11-08gdb configure updatesTom Tromey1-23/+0
Now that the configury needed for the "common" and "target" directories is in common.m4, some code in gdb's configure.ac is redundant. I ran this script after making an "ID" file using mkid: sed -n 's/^.*\(HAVE_[A-Z0-9_]*\).*$/\1/p' config.in | while read x; do echo ===== $x gid $x | egrep -v '^(testsuite|gnulib|common|target|gdbserver)/' done This finds all the spots using HAVE_ defines, and, more importantly, makes it clear which defines aren't used in the main parts of gdb. From this I came up with this patch to remove all the unused bits. There are a few that are subtly used -- for example the configure script sometimes checks internal configure cache variables, meaning some checks cannot be removed. 2013-11-08 Tom Tromey <tromey@redhat.com> * configure, config.in: Rebuild. * configure.ac: Remove unused configury.
2013-11-08remove link.h checksTom Tromey1-21/+0
The removal of solib-sunos.c also removed the last user of various macros defined by configure. This patch removes the corresponding configure code. 2013-11-08 Tom Tromey <tromey@redhat.com> * configure, config.in: Rebuild. * configure.ac: Remove all link.h-related checks.
2013-08-22 Unify ptrace options discovery code and make both GDB andLuis Machado1-0/+3
gdbserver use it. gdb/ * Makefile.in (HFILES_NO_SRCDIR): Add nat/linux-nat.h and nat/linux-waitpid.h. (linux-waitpid.o): New object file rule. * common/linux-ptrace.c: Include nat/linux-waitpid.h. (current_ptrace_options): Moved from linux-nat.c. (linux_ptrace_test_ret_to_nx): Use type casts for ptrace parameters. (linux_fork_to_function): New function. (linux_grandchild_function): Likewise. (linux_child_function): Likewise. (linux_check_ptrace_features): New function, heavily based on linux-nat.c:linux_test_for_tracefork. (linux_enable_event_reporting): New function. (ptrace_supports_feature): Likewise. (linux_supports_tracefork): Likewise. (linux_supports_traceclone): Likewise. (linux_supports_tracevforkdone): Likewise. (linux_supports_tracesysgood): Likewise. * common/linux-ptrace.h (HAS_NOMMU): Moved from gdbserver/linux-low.c. (linux_enable_event_reporting): New declaration. (linux_supports_tracefork): Likewise. (linux_supports_traceclone): Likewise. (linux_supports_tracevforkdone): Likewise. (linux_supports_tracesysgood): Likewise. * config.in (PTRACE_TYPE_ARG4): Regenerate. * config/aarch64/linux.mh (NATDEPFILES): Add linux-waitpid.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/sparc/linux.mh (NATDEPFILES): Likewise. * config/sparc/linux64.mh (NATDEPFILES): Likewise. * config/tilegx/linux.mh (NATDEPFILES): Likewise. * config/xtensa/linux.mh (NATDEPFILES): Likewise. * configure.ac (AC_CACHE_CHECK): Add void * to the list of ptrace's 4th argument's types. Check the type of PTRACE_TYPE_ARG4. * configure: Regenerate. * linux-nat.c: Include nat/linux-nat.h and nat/linux-waitpid.h. (SYSCALL_SIGTRAP): Moved to nat/linux-nat.h. (linux_supports_tracefork_flag): Remove. (linux_supports_tracesysgood_flag): Likewise. (linux_supports_tracevforkdone_flag): Likewise. (current_ptrace_options): Moved to common/linux-ptrace.c. (linux_tracefork_child): Remove. (my_waitpid): Remove. (linux_test_for_tracefork): Renamed to linux_check_ptrace_features and moved to common/linux-ptrace.c. (linux_test_for_tracesysgood): Remove. (linux_supports_tracesysgood): Remove. (linux_supports_tracefork): Remove. (linux_supports_tracevforkdone): Remove. (linux_enable_tracesysgood): Remove. (linux_enable_event_reporting): Remove. (linux_init_ptrace): New function. (linux_child_post_attach): Call linux_init_ptrace. (linux_child_post_startup_inferior): Call linux_init_ptrace. (linux_child_follow_fork): Call linux_supports_tracefork and linux_supports_tracevforkdone. (linux_child_insert_fork_catchpoint): Call linux_supports_tracefork. (linux_child_insert_vfork_catchpoint): Likewise. (linux_child_set_syscall_catchpoint): Call linux_supports_tracesysgood. (lin_lwp_attach_lwp): Call linux_supports_tracefork. * nat/linux-nat.h: New file. * nat/linux-waitpid.c: New file. * nat/linux-waitpid.h: New file. gdb/gdbserver/ * Makefile.in: Explain why ../target and ../nat are not listed as include file search paths. (linux-waitpid.o): New object file rule. * configure.srv (srv_native_linux_obj): New variable. Replace all occurrences of linux native object files with $srv_native_linux_obj. * linux-low.c: Include nat/linux-nat.h and nat/linux-waitpid.h. (HAS_NOMMU): Move defining logic to common/linux-ptrace.c. (linux_enable_event_reporting): Remove declaration. (my_waitpid): Moved to common/linux-waitpid.c. (linux_wait_for_event): Pass ptid when calling linux_enable_event_reporting. (linux_supports_tracefork_flag): Remove. (linux_enable_event_reporting): Likewise. (linux_tracefork_grandchild): Remove. (STACK_SIZE): Moved to common/linux-ptrace.c. (linux_tracefork_child): Remove. (linux_test_for_tracefork): Remove. (linux_look_up_symbols): Call linux_supports_traceclone. (initialize_low): Remove call to linux_test_for_tracefork. * linux-low.h (PTRACE_TYPE_ARG3): Move to common/linux-ptrace.h. (PTRACE_TYPE_ARG4): Likewise. Include linux-ptrace.h.
2013-08-072013-08-07 Raunaq Bathija <raunaq12@in.ibm.com>Ulrich Weigand1-0/+3
Ulrich Weigand <uweigand@de.ibm.com> * gdb_ptrace.h: Use ptrace64 instead of ptrace if HAVE_PTRACE64 is defined. * rs6000-nat.c: Check for __ld_info64_ if compiling 64 BIT gdb. (rs6000_ptrace32): Call ptrace64 instead of ptrace if present. (rs6000_ptrace64): Call ptace64 instead of ptracex if present. * configure.ac: Check for ptrace64. * configure, config.in: Regenerate.
2013-07-01Reimplement DJGPP's .gdbinit -> gdb.ini renaming.Pedro Alves1-0/+3
This simplifies the .gdbinit filename selection logic. We have a GDBINIT_FILENAME define that supposedly configurations would override, but none do so. Instead, the only configuration that wants a different file name instead of ".gdbinit", djgpp, does a strcpy over the gdbinit global array. This means the array needs to be sized, and the code that does that is doing the usual 'PATH_MAX/FILENAME_MAX/fallback constant/etc.' mess. Instead of all that, it's much simpler to have configure specificy the .gdbinit filename. As bonus, we can then make the "gdbinit" global array const. gdb/ 2013-07-01 Pedro Alves <palves@redhat.com> * configure.ac (GDBINIT): Define, depending on host. * go32-nat.c (init_go32_ops): Don't override gdbinit here. * top.c (PATH_MAX): Delete fallback definition. (GDBINIT_FILENAME): Delete. (gdbinit): Reimplement as const char array set to the GDBINIT string constant. * top.h (gdbinit): Make const.
2013-05-23common/filestuff.c: No sockets on DJGPP.Pedro Alves1-0/+3
Building gdb with --host=i586-pc-msdosdjgpp ends up with: i586-pc-msdosdjgpp-gcc -g -O2 -I../../src/gdb/config/djgpp -I. -I../../src/gdb -I../../src/gdb/common -I../../src/gdb/config -DLOCALEDIR="\"/usr/local/share/locale\"" -DHAVE_CONFIG_H -I../../src/gdb/../include/opcode -I../../src/gdb/../opcodes/.. -I../../src/gdb/../readline/.. -I../bfd -I../../src/gdb/../bfd -I../../src/gdb/../include -I../libdecnumber -I../../src/gdb/../libdecnumber -I./../intl -I../../src/gdb/gnulib/import -Ibuild-gnulib/import -Wall -Wdeclaration-after-statement -Wpointer-arith -Wformat-nonliteral -Wpointer-sign -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wmissing-prototypes -Wdeclaration-after-statement -Wempty-body -Werror -c -o filestuff.o -MT filestuff.o -MMD -MP -MF .deps/filestuff.Tpo ../../src/gdb/common/filestuff.c ../../src/gdb/common/filestuff.c:38:24: fatal error: sys/socket.h: No such file or directory There are no sockets on djgpp. This #ifdef's out the bits in the file that use sockets, depending on whether winsock or sys/socket.h is available. As alternative approach, given ser-tcp.c, ser-pipe.c, etc. are split into separate files, and which to use is selected by configure.ac: dnl Figure out which of the many generic ser-*.c files the _host_ supports. SER_HARDWIRE="ser-base.o ser-unix.o ser-pipe.o ser-tcp.o" case ${host} in *go32* ) SER_HARDWIRE=ser-go32.o ;; *djgpp* ) SER_HARDWIRE=ser-go32.o ;; *mingw32*) SER_HARDWIRE="ser-base.o ser-tcp.o ser-mingw.o" ;; esac AC_SUBST(SER_HARDWIRE) ... I considered splitting filestuff.c similarly. But I quickly gave up on the idea, as it looked like a lot more complication over this approach, for no real gain. Plus, there are uses of these functions outside the ser*.c framework. gdbserver's configure.ac is already checking for sys/socket.h. gdb/ 2013-05-23 Pedro Alves <palves@redhat.com> * common/filestuff.c [USE_WIN32API]: Define HAVE_SOCKETS. [HAVE_SYS_SOCKET_H]: Define HAVE_SOCKETS. (socket_mark_cloexec, gdb_socketpair_cloexec, gdb_socket_cloexec): Only define if HAVE_SOCKETS is defined. * configure.ac: Check for sys/socket.h. * config.in, configure: Regenerate.
2013-04-22 PR gdb/7912:Tom Tromey1-3/+6
* Makefile.in (SFILES): Add filestuff.c (COMMON_OBS): Add filestuff.o. (filestuff.o): New target. * auto-load.c (auto_load_objfile_script_1): Use gdb_fopen_cloexec. * auxv.c (procfs_xfer_auxv): Use gdb_open_cloexec. * cli/cli-cmds.c (shell_escape): Call close_most_fds. * cli/cli-dump.c (fopen_with_cleanup): Use gdb_fopen_cloexec. * common/agent.c (gdb_connect_sync_socket): Use gdb_socket_cloexec. * common/filestuff.c: New file. * common/filestuff.h: New file. * common/linux-osdata.c (linux_common_core_of_thread) (command_from_pid, commandline_from_pid, print_source_lines) (linux_xfer_osdata_shm, linux_xfer_osdata_sem) (linux_xfer_osdata_msg, linux_xfer_osdata_modules): Use gdb_fopen_cloexec. * common/linux-procfs.c (linux_proc_get_int) (linux_proc_pid_has_state): Use gdb_fopen_cloexec. * config.in, configure: Rebuild. * configure.ac: Don't check for sys/socket.h. Check for fdwalk, pipe2. * corelow.c (core_open): Use gdb_open_cloexec. * dwarf2read.c (write_psymtabs_to_index): Use gdb_fopen_cloexec. * fork-child.c (fork_inferior): Call close_most_fds. * gdb_bfd.c (gdb_bfd_open): Use gdb_open_cloexec. * inf-child.c (inf_child_fileio_readlink): Use gdb_open_cloexec. * linux-nat.c (linux_nat_thread_name, linux_proc_pending_signals): Use gdb_fopen_cloexec. (linux_proc_xfer_partial, linux_proc_xfer_spu): Use gdb_open_cloexec. (linux_async_pipe): Use gdb_pipe_cloexec. * remote-fileio.c (remote_fileio_func_open): Use gdb_open_cloexec. * remote.c (remote_file_put, remote_file_get): Use gdb_fopen_cloexec. * ser-pipe.c (pipe_open): Use gdb_socketpair_cloexec, close_most_fds. * ser-tcp.c (net_open): Use gdb_socket_cloexec. * ser-unix.c (hardwire_open): Use gdb_open_cloexec. * solib.c (solib_find): Use gdb_open_cloexec. * source.c (openp, find_and_open_source): Use gdb_open_cloexec. * tracepoint.c (tfile_start): Use gdb_fopen_cloexec. (tfile_open): Use gdb_open_cloexec. * tui/tui-io.c (tui_initialize_io): Use gdb_pipe_cloexec. * ui-file.c (gdb_fopen): Use gdb_fopen_cloexec. * xml-support.c (xml_fetch_content_from_file): Use gdb_fopen_cloexec. * main.c (captured_main): Call notice_open_fds. gdbserver * Makefile.in (SFILES): Add filestuff.c. (OBS): Add filestuff.o. (filestuff.o): New target. * config.in, configure: Rebuild. * configure.ac: Check for fdwalk, pipe2.
2013-04-12gdb/Jan Kratochvil1-1/+1
* config.in: Regenerate.
2013-04-10gdb/Yao Qi1-0/+3
2013-04-10 Hui Zhu <hui@codesourcery.com> Yao Qi <yao@codesourcery.com> * configure.ac: Check libbabeltrace is installed. * config.in: Regenerate. * configure: Regenerate. * Makefile.in (LIBBABELTRACE): New. (CLIBS): Add LIBBABELTRACE. * ctf.c: Include "exec.h". (CTF_EVENT_ID_STATUS, CTF_EVENT_ID_TSV_DEF): New macros. (CTF_EVENT_ID_TP_DEF, ctf_save_write_int32): New macros. (ctf_save_metadata_header): Define new type aliases in metadata. (ctf_write_header): Define event type "tsv_def" and "tp_def" in metadata. Start a new faked packet for trace status. (ctf_write_status): Write trace status to CTF. (ctf_write_uploaded_tsv): Write TSV to CTF. (ctf_write_uploaded_tp): Write tracepoint definition to CTF. (ctf_write_definition_end): End the faked packet. (ctx, ctf_iter, trace_dirname): New. (start_pos): New variable. (ctf_destroy, ctf_open_dir, ctf_open): New. (SET_INT32_FIELD, SET_ARRAY_FIELD, SET_STRING_FIELD): New macros. (ctf_read_tsv, ctf_read_tp, ctf_close, ctf_files_info): New. (ctf_fetch_registers, ctf_xfer_partial): New. (ctf_get_trace_state_variable_value): New. (ctf_get_tpnum_from_frame_event): New. (ctf_get_traceframe_address): New. (ctf_trace_find, ctf_has_stack): New. (ctf_has_registers, ctf_traceframe_info, init_ctf_ops): New. (ctf_get_trace_status, ctf_read_status): New. (_initialize_ctf): New. * tracepoint.c (get_tracepoint_number): New (get_uploaded_tsv): Remove 'static'. (struct traceframe_info, trace_regblock_size): Move it to ... * tracepoint.h: ... here. (get_tracepoint_number): Declare it. (get_uploaded_tsv): Declare it. * NEWS: Mention new configure option. gdb/doc/ 2013-04-10 Yao Qi <yao@codesourcery.com> * gdb.texinfo (Trace Files): Add "target ctf". gdb/testsuite/ 2013-04-10 Yao Qi <yao@codesourcery.com> * gdb.trace/actions.exp: Save trace data to CTF. Change to ctf target if GDB supports, read CTF data in ctf target, and check the actions of tracepoints. * gdb.trace/while-stepping.exp: Likewise. * gdb.trace/report.exp: Test GDB saves trace data to CTF format and read CTF trace file if GDB supports. * gdb.trace/tstatus.exp: Save trace data to CTF. If ctf target is supported, change to ctf target, read trace data and check output of command "tstatus". * gdb.trace/tsv.exp: Save trace frame to CTF. If GDB supports, read CTF data by target ctf and call check_tsv.
2012-12-09gdb/Jan Kratochvil1-3/+0
* configure.ac (CC_HAS_LONG_LONG): Replace by AC_MSG_ERROR. * defs.h (LONGEST, ULONGEST): Remove conditionalization for CC_HAS_LONG_LONG. * dwarf2-frame.c (DW64_CIE_ID): Likewise. * dwarf2read.c (extract_cu_value): Remove the function. (create_cus_from_index_list): Make the return type void, inline the extract_cu_value caller, include new gdb_static_assert. (create_cus_from_index): Make the return type void, update the function comment, update the create_cus_from_index_list caller. (create_signatured_type_table_from_index): Make the return type void, inline the extract_cu_value caller, include new gdb_static_assert. (dwarf2_read_index): Update the create_cus_from_index and create_signatured_type_table_from_index caller. * printcmd.c (ui_printf): Remove conditionalizations for CC_HAS_LONG_LONG. * config.in: Regenerate. * configure: Regenerate. gdb/doc/ * gdbint.texinfo (Host Definition): Remove CC_HAS_LONG_LONG.
2012-11-282012-11-28 Markus Metzger <markus.t.metzger@intel.com>Markus Metzger1-0/+3
gdb/ * configure.ac: Check for linux/perf_event.h. * config.in: Regenerated. * configure: Regenerated. gdb/gdbserver/ * configure.ac: Check for linux/perf_event.h. * config.in: Regenerated. * configure: Regenerated.
2012-11-262012-11-26 Alexander Larsson <alexl@redhat.com>Tom Tromey1-0/+3
Jan Kratochvil <jan.kratochvil@redhat.com> Tom Tromey <tromey@redhat.com> * NEWS: Mention mini debuginfo feature. * minidebug.c: New file. * configure.ac: Check for lzma. * configure, config.in: Rebuild. * Makefile.in (LIBLZMA): New variable. (CLIBS): Include LIBLZMA. (SFILES): Mention minidebug.c. (COMMON_OBS): Mention minidebug.o. * symfile.c (read_symbols): New function. (syms_from_objfile, reread_symbols): Call it. * symfile.h (find_separate_debug_file_in_section): Declare. doc * gdb.texinfo (MiniDebugInfo): New node. (GDB Files): Update. testsuite * gdb.base/gnu-debugdata.exp: New file. * gdb.base/gnu-debugdata.c: New file. * lib/gdb.exp (gdb_file_cmd): Handle LZMA warning. (gdb_unload): Return 0 on success.
2012-11-15 * configure.ac (AC_HEADER_STAT): Remove.Pierre Muller1-3/+0
* gdb_stat.h (STAT_MACROS_BROKEN): Remove macro use and corresponding code. * configure: Regenerate. * config.in: Regenerate.
2012-11-14 * configure, config.in: Rebuild.Tom Tromey1-6/+0
* configure.ac: Don't check for ctype.h, time.h. * expprint.c: Don't use HAVE_CTYPE_H.
2012-07-02gdb/Jan Kratochvil1-3/+0
* config.in: Regenerate. * configure: Regenerate. * configure.ac: Remove check for gnu/libc-version.h. * linux-thread-db.c <HAVE_GNU_LIBC_VERSION_H>: Remove include of gnu/libc-version.h. (enable_thread_event_reporting) <HAVE_GNU_LIBC_VERSION_H>: Remove variables libc_version, libc_major and libc_minor. Replace sscanf by inferior_has_bug. Extend the comment.
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