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2019-04-01Fix internal error and improve 'set debug infrun 1'/target wait kind tracePhilippe Waroquiers4-72/+31
The test gdb.threads/watchthreads-reorder.exp verifies that the 'set debug infrun 1' debug output does not crash GDB. Under high load, the test can still cause a GDB internal error (see details below). This patch fixes this crash, and improves/factorises some wait kind traces. Tested on debian/amd64 + run one test with 'set debug infrun 1'. Changes compared to the first version: * Handles the suggestions of Kevin to trace the relevant elements of the wait status (this is done by calling target_waitstatus_to_string). * Some other changes to factorise wait status tracing. Note that using target_waitstatus_to_string instead of the 'locally printed' status kind strings means that debug trace that was using strings such as: "EXITED" or "TARGET_WAITKIND_EXITED" will now use what is printed by target_waitstatus_to_string e.g. "exited". gdb/ChangeLog 2019-04-01 Philippe Waroquiers <philippe.waroquiers@skynet.be> * infrun.c (stop_all_threads): If debug_infrun, always trace the wait status after wait_one, using target_waitstatus_to_string and target_pid_to_str. (handle_inferior_event): Replace various trace of wait status kind by a single trace. * gdb/gnu-nat.c (gnu_nat_target::wait): Replace local wait status kind image by target_waitstatus_to_string. * target/waitstatus.c (target_waitstatus_to_string): Fix obsolete comment. (top-gdb) bt #0 __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:51 #1 0x00007f3d54a0642a in __GI_abort () at abort.c:89 #2 0x0000555c24c60e66 in dump_core () at ../../fixleaks/gdb/utils.c:201 #3 0x0000555c24c63d49 in internal_vproblem(internal_problem *, const char *, int, const char *, typedef __va_list_tag __va_list_tag *) (problem=problem@entry=0x555c25338d40 <internal_error_problem>, file=<optimized out>, line=287, fmt=<optimized out>, ap=<optimized out>) at ../../fixleaks/gdb/utils.c:411 #4 0x0000555c24c63eab in internal_verror (file=<optimized out>, line=<optimized out>, fmt=<optimized out>, ap=<optimized out>) at ../../fixleaks/gdb/utils.c:436 #5 0x0000555c249e8c22 in internal_error (file=file@entry=0x555c24e0f2ad "../../fixleaks/gdb/inferior.c", line=line@entry=287, fmt=<optimized out>) at ../../fixleaks/gdb/common/errors.c:55 #6 0x0000555c247d3f5c in find_inferior_pid (pid=<optimized out>) at ../../fixleaks/gdb/inferior.c:287 #7 0x0000555c24ad2248 in find_inferior_pid (pid=<optimized out>) at ../../fixleaks/gdb/inferior.c:302 #8 find_inferior_ptid (ptid=...) at ../../fixleaks/gdb/inferior.c:301 #9 0x0000555c24c35f25 in find_thread_ptid (ptid=...) at ../../fixleaks/gdb/thread.c:522 #10 0x0000555c24b0ab4d in thread_db_target::pid_to_str[abi:cxx11](ptid_t) ( this=0x555c2532e3e0 <the_thread_db_target>, ptid=...) at ../../fixleaks/gdb/linux-thread-db.c:1637 #11 0x0000555c24c2f420 in target_pid_to_str[abi:cxx11](ptid_t) (ptid=...) at ../../fixleaks/gdb/target.c:2083 #12 0x0000555c24ad9cab in stop_all_threads () at ../../fixleaks/gdb/infrun.c:4373 #13 0x0000555c24ada00f in stop_waiting (ecs=<optimized out>) at ../../fixleaks/gdb/infrun.c:7464 #14 0x0000555c24adc401 in process_event_stop_test (ecs=ecs@entry=0x7ffc9402d9d0) at ../../fixleaks/gdb/infrun.c:6181 ... (top-gdb) fr 12 #12 0x0000555c24ad9cab in stop_all_threads () at ../../fixleaks/gdb/infrun.c:4373 (top-gdb) p event_ptid $5 = {m_pid = 25419, m_lwp = 25427, m_tid = 0} (top-gdb) p ptid $6 = {m_pid = 0, m_lwp = 0, m_tid = 0} (top-gdb) p ws $7 = {kind = TARGET_WAITKIND_THREAD_EXITED, value = {integer = 0, sig = GDB_SIGNAL_0, related_pid = {m_pid = 0, m_lwp = 0, m_tid = 0}, execd_pathname = 0x0, syscall_number = 0}} (top-gdb) The gdb.log corresponding to the above crash is: (gdb) PASS: gdb.threads/watchthreads-reorder.exp: reorder1: set debug infrun 1 continue Continuing. infrun: clear_proceed_status_thread (Thread 0x7ffff7fcfb40 (LWP 25419)) infrun: clear_proceed_status_thread (Thread 0x7ffff7310700 (LWP 25427)) infrun: clear_proceed_status_thread (Thread 0x7ffff6b0f700 (LWP 25428)) infrun: proceed (addr=0xffffffffffffffff, signal=GDB_SIGNAL_DEFAULT) infrun: proceed: resuming Thread 0x7ffff7fcfb40 (LWP 25419) infrun: resume (step=0, signal=GDB_SIGNAL_0), trap_expected=0, current thread [Thread 0x7ffff7fcfb40 (LWP 25419)] at 0x7ffff7344317 infrun: infrun_async(1) infrun: prepare_to_wait infrun: proceed: resuming Thread 0x7ffff7310700 (LWP 25427) infrun: resume (step=0, signal=GDB_SIGNAL_0), trap_expected=0, current thread [Thread 0x7ffff7310700 (LWP 25427)] at 0x5555555553d7 infrun: prepare_to_wait infrun: proceed: resuming Thread 0x7ffff6b0f700 (LWP 25428) infrun: resume (step=0, signal=GDB_SIGNAL_0), trap_expected=0, current thread [Thread 0x7ffff6b0f700 (LWP 25428)] at 0x5555555554c8 infrun: prepare_to_wait infrun: target_wait (-1.0.0, status) = infrun: -1.0.0 [process -1], infrun: status->kind = ignore infrun: TARGET_WAITKIND_IGNORE infrun: prepare_to_wait Joining the threads. [Thread 0x7ffff6b0f700 (LWP 25428) exited] infrun: target_wait (-1.0.0, status) = infrun: -1.0.0 [process -1], infrun: status->kind = ignore infrun: TARGET_WAITKIND_IGNORE infrun: prepare_to_wait infrun: target_wait (-1.0.0, status) = infrun: 25419.25419.0 [Thread 0x7ffff7fcfb40 (LWP 25419)], infrun: status->kind = stopped, signal = GDB_SIGNAL_TRAP infrun: TARGET_WAITKIND_STOPPED infrun: stop_pc = 0x555555555e50 infrun: context switch infrun: Switching context from Thread 0x7ffff6b0f700 (LWP 25428) to Thread 0x7ffff7fcfb40 (LWP 25419) infrun: BPSTAT_WHAT_STOP_NOISY infrun: stop_waiting infrun: stop_all_threads infrun: stop_all_threads, pass=0, iterations=0 infrun: Thread 0x7ffff7fcfb40 (LWP 25419) not executing infrun: Thread 0x7ffff7310700 (LWP 25427) executing, need stop [Thread 0x7ffff7310700 (LWP 25427) exited] infrun: target_wait (-1.0.0, status) = infrun: 25419.25427.0 [LWP 25427], infrun: status->kind = thread exited, status = 0 infrun: infrun_async(0) ../../fixleaks/gdb/inferior.c:287: internal-error: inferior* find_inferior_pid(int): Assertion `pid != 0' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Quit this debugging session? (y or n) FAIL: gdb.threads/watchthreads-reorder.exp: reorder1: continue to breakpoint: break-at-exit (GDB internal error) Resyncing due to internal error. n infrun: infrun_async(1) This is a bug, please report it. For instructions, see: <http://www.gnu.org/software/gdb/bugs/>. infrun: infrun_async(0) ../../fixleaks/gdb/inferior.c:287: internal-error: inferior* find_inferior_pid(int): Assertion `pid != 0' failed. A problem internal to GDB has been detected, further debugging may prove unreliable. Create a core file of GDB? (y or n) y
2019-04-01Handle DW_AT_ranges when reading partial symtabsTom Tromey6-0/+234
add_partial_subprogram does not handle DW_AT_ranges, while the full symtab reader does. This can lead to discrepancies where a function is not put into a partial symtab, and so is not available to "break" and the like -- but is available if the full symtab has somehow been read. This patch fixes the bug by arranging to read DW_AT_ranges when reading partial DIEs. This is PR symtab/23331. The new test case is derived from dw2-ranges-func.exp, which is why I kept the copyright dates. gdb/ChangeLog 2019-04-01 Tom Tromey <tromey@adacore.com> PR symtab/23331: * dwarf2read.c (partial_die_info::read): Handle DW_AT_ranges. gdb/testsuite/ChangeLog 2019-04-01 Tom Tromey <tromey@adacore.com> PR symtab/23331: * gdb.dwarf2/dw2-ranges-main.c: New file. * gdb.dwarf2/dw2-ranges-psym.c: New file. * gdb.dwarf2/dw2-ranges-psym.exp: New file.
2019-04-01Destroy allocated values when exiting GDBSergio Durigan Junior4-0/+25
When the user exits GDB, we might still have some allocated values in the chain, which, in specific scenarios, can cause problems when GDB attempts to destroy them in "quit_force". For example, see the bug reported at: https://bugzilla.redhat.com/show_bug.cgi?id=1690120 And the thread starting at: https://sourceware.org/ml/gdb-patches/2019-03/msg00475.html Message-ID: <87r2azkhmq.fsf@redhat.com> In order to avoid that, and to be more aware of our allocated resources, this commit implements a new function "finalize_values" and calls it from inside "quit_force". Tested by the BuildBot. 2019-04-01 Sergio Durigan Junior <sergiodj@redhat.com> Pedro Alves <palves@redhat.com> * top.c (quit_force): Call 'finalize_values'. * value.c (finalize_values): New function. * value.h (finalize_values): Declare.
2019-04-01[GAS, Arm] CLI with architecture sensitive extensionsAndre Vieira43-53/+2878
This patch adds a new framework to add architecture sensitive extensions, like GCC does. This patch also implements all architecture extensions currently available in GCC. This framework works as follows. To enable architecture sensitive extensions for a particular architecture, that architecture must contain an ARM_ARCH_OPT2 entry in the 'arm_archs' table. All fields here are the same as previous, with the addition of a new extra field at the end to <name> it's extension table. This <name>, corresponds to a <name>_ext_table of type 'struct arm_ext_table'. This struct can be filled with three types of entries: ARM_ADD (string <ext>, arm_feature_set <enable_bits>), which means +<ext> will enable <enable_bits> ARM_REMOVE (string <ext>, arm_feature_set <disable_bits>), which means +no<ext> will disable <disable_bits> ARM_EXT (string <ext>, arm_feature_set <enable_bits>, arm_feature_set <disable_bits>), which means +<ext> will enable <enable_bits> and +no<ext> will disable <disable_bits> (this is to be used instead of adding an ARM_ADD and ARM_REMOVE for the same <ext>) This patch does not disable the use of the old extensions, even if some of them are duplicated in the new tables. This is a "in-between-step" as we may want to deprecate the old table of extensions in later patches. For now, GAS will first look for the +<ext> or +no<ext> in the new table and if no entry is found it will continue searching in the old table, following old behaviour. If only an ARM_ADD or an ARM_REMOVE is defined for <ext> and +no<ext> or +<ext> resp. is used then it also continues to search the old table for it. A couple of caveats: - This patch does not enable the use of these architecture extensions with the '.arch_extension' directive. This is future work that I will tend to later. - This patch does not enable the use of these architecture extensions with the -mcpu option. This is future work that I will tend to later. - This patch does not change the current behaviour when combining an architecture extension and using -mfpu on the command-line. The current behaviour of GAS is to stage the union of feature bits enabled by both -march and -mfpu. GCC behaves differently here, so this is something we may want to revisit on a later date.
2019-04-01Add gdb.Value.format_string ()Marco Barisione6-0/+1377
The str () function, called on a gdb.Value instance, produces a string representation similar to what can be achieved with the print command, but it doesn't allow to specify additional formatting settings, for instance disabling pretty printers. This patch introduces a new format_string () method to gdb.Value which allows specifying more formatting options, thus giving access to more features provided by the internal C function common_val_print (). gdb/ChangeLog: 2019-04-01 Marco Barisione <mbarisione@undo.io> Add gdb.Value.format_string (). * python/py-value.c (copy_py_bool_obj): (valpy_format_string): Add gdb.Value.format_string (). * NEWS: Document the addition of gdb.Value.format_string (). gdb/doc/ChangeLog: 2019-04-01 Marco Barisione <mbarisione@undo.io> * python.texi (Values From Inferior): Document gdb.Value.format_string (). gdb/testsuite/ChangeLog: 2019-04-01 Marco Barisione <mbarisione@undo.io> Test gdb.Value.format_string (). * gdb.python/py-format-string.exp: New test. * gdb.python/py-format-string.c: New file. * gdb.python/py-format-string.py: New file.
2019-04-01Add myself to gdb/MAINTAINERSMarco Barisione1-0/+1
gdb/ChangeLog: 2019-04-01 Marco Barisione <mbarisione@undo.io> * MAINTAINERS (Write After Approval): Add Marco Barisione.
2019-04-01PR24402, global buffer overflow in symtab_finalizeAlan Modra2-2/+9
PR 24402 * symtab.c (symtab_finalize): Init prev_addr to one less than first symbol address, not one more. Correct test for symbols with leading underscores.
2019-04-01Automatic date update in version.inGDB Administrator1-1/+1
2019-03-31Automatic date update in version.inGDB Administrator1-1/+1
2019-03-30RISC-V: Relax tail/j to c.j for RV64.Jim Wilson2-2/+10
2019-03-30 Andrew Waterman <andrew@sifive.com> bfd/ * elfnn-riscv.c (_bfd_riscv_relax_call): Only check ARCH_SIZE for rd == X_RA case.
2019-03-30Introduce new convenience variables $_gdb_major and $_gdb_minorEli Zaretskii7-13/+64
gdb/ChangeLog: 2019-03-30 Eli Zaretskii <eliz@gnu.org> * NEWS: Announce $_gdb_major and $_gdb_minor. * top.c (init_gdb_version_vars): New function. (gdb_init): Call init_gdb_version_vars. gdb/testsuite/ChangeLog: 2019-03-30 Simon Marchi <simark@simark.ca> * gdb.base/default.exp: Add values for $_gdb_major and $_gdb_minor. gdb/doc/ChangeLog: 2019-03-30 Eli Zaretskii <eliz@gnu.org> * gdb.texinfo (Convenience Vars): Document $_gdb_major and $_gdb_minor.
2019-03-30Automatic date update in version.inGDB Administrator1-1/+1
2019-03-29Add usage for commands in printcmd.cTom Tromey4-24/+47
I noticed that the help for "info addr" did not include a "usage" line; and when adding it I went through and fixed a few minor issues in printcmd.c: * Added usage lines to all commands * Updated the help text for some commands * Changed some help to use upper case metasyntactic variables * Removed some dead code Regression tested on x86-64 Fedora 29. gdb/ChangeLog 2019-03-29 Tom Tromey <tromey@adacore.com> * printcmd.c (_initialize_printcmd): Add usage lines. Update some help text. Remove dead code. gdb/testsuite/ChangeLog 2019-03-29 Tom Tromey <tromey@adacore.com> * gdb.base/help.exp: Tighten apropos regexp.
2019-03-29Allow really large fortran array bounds: fortran type/value printersKeith Seitz7-13/+110
This is the fortran part of the patch, including tests, which are essentially unchanged from Siddhesh's original 2012 submission: https://sourceware.org/ml/gdb-patches/2012-08/msg00562.html There is, however, one large departure. In the above thread, Jan pointed out problems with GCC debuginfo for -m32 builds (filed usptream as gcc/54934). After investigating the issue, I am dropping the hand-tweaked assembler source file to workaround this case. While I would normally do something to accommodate this, in this case, given the ubiquity of 64-bit systems today (where the tests pass) and the apparent lack of urgency on the compiler side (by users), I don't think the additional complexity and maintenance costs are worth it. It will be very routinely tested on 64-bit systems. [For example, at Red Hat, we always test -m64 and -m32 configurations for all GDB releases.] gdb/ChangeLog: From Siddhesh Poyarekar: * f-lang.h (f77_get_upperbound): Return LONGEST. (f77_get_lowerbound): Likewise. * f-typeprint.c (f_type_print_varspec_suffix): Expand UPPER_BOUND and LOWER_BOUND to LONGEST. Use plongest to format print them. (f_type_print_base): Expand UPPER_BOUND to LONGEST. Use plongest to format print it. * f-valprint.c (f77_get_lowerbound): Return LONGEST. (f77_get_upperbound): Likewise. (f77_get_dynamic_length_of_aggregate): Expand UPPER_BOUND, LOWER_BOUND to LONGEST. (f77_create_arrayprint_offset_tbl): Likewise. gdb/testsuite/ChangeLog: * gdb.fortran/array-bounds.exp: New file. * gdb.fortran/array-bounds.f90: New file.
2019-03-29Allow really large fortran array bounds: TYPE_LENGTH to ULONGESTKeith Seitz13-27/+54
This series is revisit of Siddhesh Poyarekar's patch from back in 2012. The last status on the patch is in the following gdb-patches thread: https://sourceware.org/ml/gdb-patches/2012-08/msg00562.html It appears that Tom approved the patch, but Jan had some issues with a compiler error that made the test fail on -m32 test runs. He wrote up a hand-tweaked .S file to deal with it. Siddesh said he would update tests. Then nothing. Siddesh and Jan have both moved on since. The patch originally required a large precursor patch to work. I have whittled this down to/rewritten the bare minimum, and this first patch is the result, changing the type of TYPE_LENGTH to ULONGEST from unsigned int. The majority of the changes involve changing printf format strings to use %s and pulongest instead of %d. gdb/ChangeLog: * ada-lang.c (ada_template_to_fixed_record_type_1): Use %s/pulongest for TYPE_LENGTH instead of %d in format strings. * ada-typerint.c (ada_print_type): Likewise. * amd64-windows-tdep.c (amd64_windows_store_arg_in_reg): Likewise. * compile/compile-c-support.c (generate_register_struct): Likewise. * gdbtypes.c (recursive_dump_type): Likewise. * gdbtypes.h (struct type) <length>: Change type to ULONGEST. * m2-typeprint.c (m2_array): Use %s/pulongest for TYPE_LENGTH instead of %d in format strings. * riscv-tdep.c (riscv_type_alignment): Cast second argument to std::min to ULONGEST. * symmisc.c (print_symbol): Use %s/pulongest for TYPE_LENGTH instead of %d in format strings. * tracepoint.c (info_scope_command): Likewise. * typeprint.c (print_offset_data::update) (print_offset_data::finish): Likewise. * xtensa-tdep.c (xtensa_store_return_value) (xtensa_push_dummy_call): Likewise.
2019-03-29bfd: xtensa: fix shrink_dynamic_reloc_sections for export-dynamicMax Filippov5-1/+29
shrink_dynamic_reloc_sections must remove PLT entry that was created for an undefined weak symbol in the presence of --export-dynamic option when relaxation coalesces literals pointing to that symbol. This fixes the following assertion: ld: BFD (GNU Binutils) 2.31.1 internal error, aborting at elf32-xtensa.c:3292 in elf_xtensa_finish_dynamic_sections 2019-03-29 Max Filippov <jcmvbkbc@gmail.com> bfd/ * elf32-xtensa.c (shrink_dynamic_reloc_sections): Add info->export_dynamic to the conditional. ld/ * testsuite/ld-xtensa/relax-undef-weak-pie-export-dynamic.d: New test definition. * testsuite/ld-xtensa/xtensa.exp (relax-undef-weak-pie-export-dynamic): Add new test.
2019-03-29Automatic date update in version.inGDB Administrator1-1/+1
2019-03-28sim: fix all sim buildsAndrew Burgess3-0/+8
This commit: commit ef9866970ce6683d40465fb7c3168f87a1dcd1b7 Date: Thu Mar 28 06:40:30 2019 +0900 sim/common: convert sim-arange to use sim-inline broke many simulator targets. I fixed aarch64 in a previous commit without realising how many other target were also broken. This commit adds the missing includes (sim-assert.h and libiberty.h), which seem to be needed by many simulator targets, in a central location, this should fix most builds. sim/common/ChangeLog: * sim-base.h: Add 'sim-assert.h' include. * sim-basics.h: Add 'libiberty.h' include.
2019-03-28Fix format specification in display_selector() (again)Jon Turney2-2/+9
DWORD type is not a long on 64-bit Cygwin, because that it is LP64. Explicitly cast DWORD values to unsigned long and use an appropriate format. gdb/ChangeLog: 2019-03-28 Jon Turney <jon.turney@dronecode.org.uk> * windows-nat.c (display_selector): Fixed format specifications for 64-bit Cygwin.
2019-03-28Fix gdb.multi/multi-term-settings.exp blocking under high load/slow gdbPhilippe Waroquiers2-1/+5
Similarly to multi-arch-exec.exp, increase the alarm timer to avoid test blocking under high load or with a slow gdb. 2019-03-28 Philippe Waroquiers <philippe.waroquiers@skynet.be> * gdb.multi/multi-term-settings.c (main): Increase alarm timer.
2019-03-28Fix gdb.multi/multi-arch-exec.exp blocking under high load/slow gdbPhilippe Waroquiers2-1/+5
When running multi-arch-exec.exp under valgrind, the test succeeds when the machine is not loaded, but blocks when the machine is highly loaded (e.g. when running the testsuite with valgrind with -j X where X is one more than the nr of available cores). The problem is that the hello program dies too early due to the alarm (30). So, increase the alarm timer. Note that this does not make the test take longer (it takes about 3.5 seconds on my system). As I understand, the alarm is just there to avoid hello staying there forever in case of another problem. 2019-03-28 Philippe Waroquiers <philippe.waroquiers@skynet.be> * gdb.multi/hello.c (main): Increase alarm timer.
2019-03-28Fix GDB being suspended SIGTTOU when running gdb.multi/multi-arch-exec.expPhilippe Waroquiers2-0/+8
When running under valgrind, multi-arch-exec.exp blocks forever. Some (painful) investigation shows this is due to valgrind slowing down GDB, and GDB has to output some messages at a different time, when GDB does not have the terminal for output. To reproduce the problem, you need to slow down GDB. It can be reproduced by: cd gdb/testsuite/outputs/gdb.multi/multi-arch-exec/ ../../../../gdb -ex 'set debug lin-lwp 1' -ex 'break all_started' -ex 'run' ./2-multi-arch-exec The above stops at a breakpoint. Do continue. GDB is then suspended because of SIGTTOU. The stacktrace that leads to the hanging GDB is: (top-gdb) bt at ../../binutils-gdb/gdb/exceptions.c:130 .... Alternatively, the same happens when doing strace -o s.out ../../../../gdb -ex 'break all_started' -ex 'run' ./2-multi-arch-exec And of course, valgrind is also sufficiently slowing down GDB to reproduce this :). Fix this by calling target_terminal::ours_for_output (); at the beginning of follow_exec. Note that all this terminal handling is not very clear to me: * Some code takes the terminal, and then takes care to give it back to the inferior if the terminal was belonging to the inferior. (e.g. annotate_breakpoints_invalid). * some code takes the terminal, but does not give it back (e.g. update_inserted_breakpoint_locations). * some code takes it, and unconditionally gives it back (e.g. handle_jit_event) * here and there, we also find gdb::optional<target_terminal::scoped_restore_terminal_state> term_state; before a (sometimes optional) call to ours_for_output. And such calls to ours_for_output is sometimes protected by: if (target_supports_terminal_ours ()) (e.g. exceptions.c: print_flush). but most of the code calls it without checking if the target supports it. * some code is outputting some errors, but only takes the terminal after. E.g. infcmd.c: prepare_one_step gdb/ChangeLog 2019-03-28 Philippe Waroquiers <philippe.waroquiers@skynet.be> * infrun.c (follow_exec): Call target_terminal::ours_for_output.
2019-03-28Fix stepping past unwritable kernel helper on nios2-linux-gnu.Sandra Loosemore6-17/+71
This patch fixes a problem on nios2-linux-gnu with stepping past the kernel helper __kuser_cmpxchg, which was exposed by the testcase gdb.threads/watchpoint-fork.exp. The kernel maps this function into user space on an unwritable page. In this testcase, the cmpxchg helper is invoked indirectly from the setbuf call in the test program. Since this target lacks hardware breakpoint/watchpoint support, GDB tries to single-step through the program by setting software breakpoints, and was just giving an error when it reached the function on the unwritable page. The solution here is to always step over the call instead of stepping into it; cmpxchg is supposed to be an atomic operation so this behavior seems reasonable. The hook in nios2_get_next_pc is somewhat generic, but at present cmpxchg is the only helper provided by the Linux kernel that is invoked by an ordinary function call. (Signal return trampolines also go through the unwritable page but not by a function call.) Fixing this issue also revealed that the testcase needs a much larger timeout factor when software single-stepping is used. That has also been fixed in this patch. gdb/ChangeLog 2019-03-28 Sandra Loosemore <sandra@codesourcery.com> * nios2-tdep.h (struct gdbarch_tdep): Add is_kernel_helper. * nios2-tdep.c (nios2_get_next_pc): Skip over kernel helpers. * nios2-linux-tdep.c (nios2_linux_is_kernel_helper): New. (nios2_linux_init_abi): Install it. gdb/testsuite/ChangeLog 2019-03-28 Sandra Loosemore <sandra@codesourcery.com> * gdb.threads/watchpoint-fork.exp (test): Use large timeout factor when no hardware watchpoint support.
2019-03-28Testsuite: set sysroot when using gdbserverAlan Hayward2-0/+8
When testing using native-gdbserver and native-extended-gdbserver, the sysroot is not set. This results in a warning from GDB and files are sent via the remote protocol, which can be slow. On Ubuntu 18.04 (unlike most distros) the debug versions of the standard libraries are included by default in /usr/lib/debug/. These file reads are causing a complete native-gdbserver run on the AArch64 buildbot slave to timeout after 2.5 hours. This is also causing the builds to back up on the slave. The solution is to ensure the sysroot is set to / for all local boards. This drastically reduces the time of a test. For example, gdb.base/sigall.exp drops from 23 seconds to 4 seconds. A full native-gdbserver run on the AArch64 slave now takes 8 minutes. gdb/testsuite/ChangeLog: * boards/local-board.exp: set sysroot to /.
2019-03-28sim: fix aarch64 sim buildAndrew Burgess3-0/+7
This commit: commit ef9866970ce6683d40465fb7c3168f87a1dcd1b7 Date: Thu Mar 28 06:40:30 2019 +0900 sim/common: convert sim-arange to use sim-inline Broke the simulator build for aarch64 - some required macros are no longer included where needed, fixed in this commit. sim/aarch64/ChangeLog: * cpustate.c: Add 'libiberty.h' include. * interp.c: Add 'sim-assert.h' include.
2019-03-28AArch64: View the pseudo V registers as vectorsAlan Hayward2-5/+52
When SVE is enabled, the V registers become pseudo registers based on the Z registers. They should look the same as they do when there is no SVE. The existing code viewed them as single value registers. Switch this to a vector. gdb/ChangeLog: * aarch64-tdep.c (aarch64_vnv_type): Use vector types.
2019-03-28AArch64: 128bit views for SVE registersAlan Hayward2-0/+18
SVE can view Z registers as 128bit values using .q prefix. Add this view to the SVE feature. gdb/ChangeLog: * features/aarch64-sve.c (create_feature_aarch64_sve): Add q view.
2019-03-28gdbserver: Ensure AT_HWCAP2 is definedAlan Hayward2-0/+8
When using older compilers, AT_HWCAP2 may not be be defined. It is defined in elf/common.h, however including this in gdbserver/linux-low.c causes conflicts. Manually add the define if it does not exist. gdb/gdbserver/ChangeLog: * linux-low.c (AT_HWCAP2): Add define if not already included.
2019-03-28PR24392, Clang warning Wtautological-constant-out-of-range-compareAlan Modra7-29/+53
PR 24392 * configure.ac: Invoke AC_CHECK_SIZEOF(int). * configure: Regenerate. * coffgen.c (coff_get_reloc_upper_bound): Replace gcc diagnostic workaround with SIZEOF_LONG vs. SIZEOF_INT check. * elf.c (_bfd_elf_get_reloc_upper_bound): Likewise. * elf64-sparc.c (elf64_sparc_get_reloc_upper_bound): Likewise. * mach-o.c (bfd_mach_o_get_reloc_upper_bound): Likewise.
2019-03-28PR24390, Don't decode mtfsb field as a cr fieldAlan Modra8-15/+43
"mtfsb0 4*cr7+lt" doesn't make all that much sense, but unfortunately glibc uses just that instead of "mtfsb0 28" to clear the fpscr xe bit. So for backwards compatibility accept cr field expressions when assembling mtfsb operands, but disassemble to a plain number. PR 24390 include/ * opcode/ppc.h (PPC_OPERAND_CR_REG): Comment. opcodes/ * ppc-opc.c (BTF): Define. (powerpc_opcodes): Use for mtfsb*. * ppc-dis.c (print_insn_powerpc): Print fields with both PPC_OPERAND_CR_REG and PPC_OPERAND_CR_BIT as a plain number. gas/ * testsuite/gas/ppc/476.d: Update mtfsb*. * testsuite/gas/ppc/a2.d: Likewise.
2019-03-28Automatic date update in version.inGDB Administrator1-1/+1
2019-03-28sim/common: Fix warnings: "warning: implicit declaration of function..."Stafford Horne7-0/+28
During building of several cgen simulator's I notices the below warnings. Adding includes fixes these. Including config.h allows stdio.h to properly configure itself to expose asprintf(). The other warnings for abort, free, memset, strlen are trivial. Warnings: ../../../binutils-gdb/sim/or1k/../common/sim-watch.c: In function ‘sim_watchpoint_install’: ../../../binutils-gdb/sim/or1k/../common/sim-watch.c:415:10: warning: implicit declaration of function ‘asprintf’; did you mean ‘vasprintf’? [-Wimplicit-function-declaration] if (asprintf (&name, "watch-%s-%s", ^~~~~~~~ vasprintf ../../../binutils-gdb/sim/lm32/../common/hw-device.c: In function ‘hw_strdup’: ../../../binutils-gdb/sim/lm32/../common/hw-device.c:59:34: warning: implicit declaration of function ‘strlen’ [-Wimplicit-function-declaration] char *dup = hw_zalloc (me, strlen (str) + 1); ^~~~~~ ../../../binutils-gdb/sim/lm32/../common/hw-events.c: In function ‘hw_event_queue_schedule’: ../../../binutils-gdb/sim/lm32/../common/hw-events.c:92:3: warning: implicit declaration of function ‘memset’ [-Wimplicit-function-declaration] memset (&dummy, 0, sizeof dummy); ^~~~~~ ../../../binutils-gdb/sim/lm32/../common/hw-handles.c: In function ‘hw_handle_remove_ihandle’: ../../../binutils-gdb/sim/lm32/../common/hw-handles.c:211:4: warning: implicit declaration of function ‘free’ [-Wimplicit-function-declaration] free (delete); ^~~~ ../../../binutils-gdb/sim/lm32/../common/sim-fpu.c: In function ‘pack_fpu’: ../../../binutils-gdb/sim/lm32/../common/sim-fpu.c:292:7: warning: implicit declaration of function ‘abort’ [-Wimplicit-function-declaration] abort (); ^~~~~ sim/common/ChangeLog: * sim-options.c: Include "config.h". Include <stdio.h>. * sim-watch.c: Include "config.h". Include <stdio.h>. * hw-device.c: Include <string.h>. * hw-events.c: Include <string.h>. * hw-handles.c: Include <stdlib.h>. * sim-fpu.c: Include <stdlib.h>.
2019-03-28sim/common: convert sim-arange to use sim-inlineStafford Horne8-36/+83
This fixes a TODO item and also fixes an error which we get when building with no optimizations (-O0) in at least gcc 8.2.1. Tested with sims that use cgen code lm32, or1k, cris, m32r and inlining is working corretly. Reference Error: gcc -DHAVE_CONFIG_H -DWITH_DEFAULT_MODEL='"or1200"' -DWITH_ALIGNMENT=STRICT_ALIGNMENT \ -DWITH_TARGET_WORD_BITSIZE=32 -DWITH_TARGET_WORD_MSB=31 -DWITH_TARGET_ADDRESS_BITSIZE=32 \ -DWITH_TARGET_BYTE_ORDER=BFD_ENDIAN_BIG -DDEFAULT_INLINE=0 -DWITH_SCACHE=16384 \ -I. -I../../../binutils-gdb/sim/or1k -I../common -I../../../binutils-gdb/sim/or1k/../common \ -I../../include -I../../../binutils-gdb/sim/or1k/../../include -I../../bfd \ -I../../../binutils-gdb/sim/or1k/../../bfd -I../../opcodes -I../../../binutils-gdb/sim/or1k/../../opcodes \ -g -o run nrun.o libsim.a ../../bfd/libbfd.a ../../opcodes/libopcodes.a ../../libiberty/libiberty.a \ -ldl -lz -lm /usr/bin/ld: libsim.a(mloop.o): in function `extract': /home/shorne/work/openrisc/gdb-musl/sim/or1k/mloop.c:82: undefined reference to `sim_addr_range_hit_p' /usr/bin/ld: /home/shorne/work/openrisc/gdb-musl/sim/or1k/mloop.c:83: undefined reference to `sim_addr_range_hit_p' collect2: error: ld returned 1 exit status make[3]: *** [Makefile:305: run] Error 1 sim/common/ChangeLog: * Make-common.in (sim-arange_h): Remove sim-arange.c * sim-arange.c: Remove SIM_ARANGE_C. Add ifdef for _SIM_ARANGE_C_. Include "sim-arange.h". Remove include for unused "sim-assert.h". Remove DEFINE_INLINE_P. Remove DEFINE_NON_INLINE_P. (sim_addr_range_add): Declare as INLINE_SIM_ARANGE. (sim_addr_range_delete): Declare as INLINE_SIM_ARANGE. (sim_addr_range_hit_p): Change from SIM_ARANGE_INLINE to INLINE_SIM_ARANGE. * sim-arange.h (sim_addr_range_add): Declare as INLINE_SIM_ARANGE. (sim_addr_range_delete): Declare as INLINE_SIM_ARANGE. (sim_addr_range_hit_p) Declare as INLINE_SIM_ARANGE. Remove definition of SIM_ARANGE_INLINE. Remove [HAVE_INLINE]. Wrap include "sim-arange.c" in H_REVEALS_MODULE_P. * sim-base.h: Include "sim-arange.h" * sim-basics.h: Remove include of "sim-arange.h" * sim-inline.c: Include "sim-arange.c" * sim-inline.h: Define INLINE_SIM_ARANGE. Define SIM_ARANGE_INLINE. Define EXTERN_SIM_ARANGE_P. Define STATIC_INLINE_SIM_ARANGE. Define STATIC_SIM_ARANGE.
2019-03-27Fix buffer overflow regression due to minsym malloc-ed instead of obstack-ed.Philippe Waroquiers2-8/+15
Valgrind detects the following error in a bunch of tests, e.g. in gdb.base/foll-fork.exp. ==15155== VALGRIND_GDB_ERROR_BEGIN ==15155== Invalid read of size 8 ==15155== at 0x55BE04: minimal_symbol_upper_bound(bound_minimal_symbol) (minsyms.c:1504) ==15155== by 0x3B2E9C: find_pc_partial_function(unsigned long, char const**, unsigned long*, unsigned long*, block const**) (blockframe.c:340) ==15155== by 0x3B3135: find_function_entry_range_from_pc(unsigned long, char const**, unsigned long*, unsigned long*) (blockframe.c:385) ==15155== by 0x4F5597: fill_in_stop_func(gdbarch*, execution_control_state*) [clone .part.16] (infrun.c:4124) ==15155== by 0x4FBE01: fill_in_stop_func (infrun.c:7636) ==15155== by 0x4FBE01: process_event_stop_test(execution_control_state*) (infrun.c:6279) ... ==15155== Address 0x715bec8 is 0 bytes after a block of size 2,952 alloc'd ==15155== at 0x4C2E2B3: realloc (vg_replace_malloc.c:836) ==15155== by 0x405F2C: xrealloc (common-utils.c:62) ==15155== by 0x55BA4E: xresizevec<minimal_symbol> (poison.h:170) ==15155== by 0x55BA4E: minimal_symbol_reader::install() (minsyms.c:1399) ==15155== by 0x4981C7: elf_read_minimal_symbols (elfread.c:1165) ... This seems to be a regression created by: commit 042d75e42c5572f333e0e06dabd3c5c4afab486c Author: Tom Tromey <tom@tromey.com> AuthorDate: Sat Mar 2 12:29:48 2019 -0700 Commit: Tom Tromey <tom@tromey.com> CommitDate: Fri Mar 15 16:02:10 2019 -0600 Allocate minimal symbols with malloc Before this commit, the array of 'struct minimal_symbol' contained a last element that was a "null symbol". The comment in minimal_symbol_reader::install was: /* We also terminate the minimal symbol table with a "null symbol", which is *not* included in the size of the table. This makes it easier to find the end of the table when we are handed a pointer to some symbol in the middle of it. Zero out the fields in the "null symbol" allocated at the end of the array. Note that the symbol count does *not* include this null symbol, which is why it is indexed by mcount and not mcount-1. */ memset (&msymbols[mcount], 0, sizeof (struct minimal_symbol)); However, minimal_symbol_upper_bound was still based on the assumption that the array of minsym is terminated by a minsym with a null symbol: it is looping with: for (i = 1; MSYMBOL_LINKAGE_NAME (msymbol + i) != NULL; i++) Replace this NULL comparison by a logic that calculates how many msymbol are following the msymbols from which we are starting from. (Re-)tested on debian/amd64, natively and under valgrind. gdb/ChangeLog 2019-03-24 Philippe Waroquiers <philippe.waroquiers@skynet.be> Tom Tromey <tromey@adacore.com> * minsyms.c (minimal_symbol_upper_bound): Fix buffer overflow.
2019-03-27Testsuite: Ensure interrupt-daemon-attach doesn't run foreverAlan Hayward2-2/+14
Looking at the AArch64 buildbot, I noticed about two dozen old instances of interrupt-daemon-attach taking up a full 100% cpu each. If the test fails then the test binary relies on an alarm to ensure it dies after 60 seconds. As per the Linux man page for alarm: Alarms created by alarm() ... are not inherited by children created via fork. Update the test to add an alarm in the child and also put a sleep in the child loop so it does not constantly consume cpu. Note I haven't managed to re-create why the test failed. This fix will just stop it hanging and consuming cpu when it does. gdb/testsuite/ChangeLog: * gdb.base/interrupt-daemon-attach.c (main): Add alarm and sleep in child.
2019-03-27Automatic date update in version.inGDB Administrator1-1/+1
2019-03-26gdb-gdb.py.in: Fix error when printing range typeJoel Brobecker2-7/+28
I noticed that trying to print the contents of a struct main_type would fail when the type was a TYPE_CODE_RANGE: (gdb) p *type.main_type $1 = Python Exception <class 'gdb.error'> There is no member named low_undefined.: And indeed, Python is right, fields "low_undefined" has been removed from struct range_bounds back in ... 2014! It was done when we introduced dynamic bounds handling. This patch fixes gdb-gdb.py.in according to the new structure. gdb/ChangeLog: * gdb-gdb.py.in (StructMainTypePrettyPrinter.bound_img): New method. (StructMainTypePrettyPrinter.bounds_img): Use new "bound_img" method to compute the bounds of range types. Also print "[evaluated]" if the bounds' values come from a dynamic evaluation.
2019-03-26gdb: Make python display_hint None handling defined behaviourAndrew Burgess6-2/+40
The documentation say that the display_hint method must return a string to serve as a display hint, and then goes on to list some acceptable strings. However, if we don't supply the display_hint method then we get a default display style behaviour and there's currently no way (in the python api) to force this default behaviour. The guile api allows #f to be used in order to force the default display style behaviour, and this is documented. Currently, using None in the python api also forces the default display behaviour. This commit extends the documentation to make returning None from the display_hint method an official mechanism by which the user can get the default display style. I've extended one of the existing tests to cover this case. gdb/doc/ChangeLog: * python.texi (Pretty Printing API): Document use of None for the display_hint. gdb/testsuite/ChangeLog: * gdb.python/py-prettyprint.c (struct container) <is_map_p>: New field. (make_container): Initialise new field. * gdb.python/py-prettyprint.exp: Add new tests. * gdb.python/py-prettyprint.py (class ContainerPrinter) <display_hint>: New method.
2019-03-26gdb/testsuite: Make test names unique in gdb.python/py-prettyprint.expAndrew Burgess2-12/+21
This makes the test names unique in gdb.python/py-prettyprint.exp, it also switches to use gdb_breakpoint and gdb_continue_to_breakpoint more so that we avoid test names with the source line number in - this is bad if the test source ever changes as the test names will then change. One final change is to switch from using gdb_py_test_silent_cmd to use gdb_test_no_output, the former should be used for running python commands and can catch any thrown exception. However, in this case the command being run is not a python command, its just a normal GDB CLI command that produces no output, so lets use the appropriate wrapper function. gdb/testsuite/ChangeLog: * gdb.python/py-prettyprint.exp: Use gdb_breakpoint and gdb_continue_to_breakpoint more throughout this test. (run_lang_tests) Supply unique test names, and use gdb_test_no_output.
2019-03-26gdb: Avoid trailing whitespace when pretty printingAndrew Burgess6-3/+129
While writing a new test for 'set print pretty on' I spotted that GDB will sometimes add a trailing whitespace character when pretty printing. This commit removes the trailing whitespace and updates the expected results in one tests where this was an issue. I've added an extra test for 'set print pretty on' as it doesn't seem to have much testing. gdb/ChangeLog: * cp-valprint.c (cp_print_value_fields): Don't print trailing whitespace when pretty printing is on. gdb/testsuite/ChangeLog: * gdb.base/finish-pretty.exp: Update expected results. * gdb.base/pretty-print.c: New file. * gdb.base/pretty-print.exp: New file.
2019-03-26Fix Powerpc buildAlan Hayward2-0/+5
gdb/ChangeLog: * ppc-linux-nat.c: Add include.
2019-03-26Add AArch64 Pointer Authentication to the NEWS fileAlan Hayward2-0/+6
gdb/ChangeLog: * NEWS: Mention AArch64 Pointer Authentication.
2019-03-26AArch64/Arm: Update testcases fixing endiannes and linux targetsTamar Christina11-146/+145
This fixes the testcases that are failing due to my recent patch. It turns out that the start address across baremetal and linux builds isn't entirely predictable without a linker script. Since the address themselves are not the important thing I am ignoring them now. Secondly I was encoding data using .word using non 0 values, however because .word is subjected to endiannes these non-zero values under big-endian happen to fall into the encoding space of instructions which changes the disassembly. Using 0 fixes this problem and the purpose of the test still holds, though objdump will dump ... for data only sections, which is ok as the data/insn mixed sections will test the patch. The ARM Attributes sections is not important and is ignored. binutils/ChangeLog: * testsuite/binutils-all/aarch64/in-order.d: Likewise. * testsuite/binutils-all/aarch64/out-of-order-all.d: Likewise. * testsuite/binutils-all/aarch64/out-of-order.d: Likewise. * testsuite/binutils-all/aarch64/out-of-order.s: Likewise. * testsuite/binutils-all/arm/in-order-all.d: Likewise. * testsuite/binutils-all/arm/in-order.d: Likewise. * testsuite/binutils-all/arm/out-of-order-all.d: Likewise. * testsuite/binutils-all/arm/out-of-order.d: Likewise. * testsuite/binutils-all/arm/out-of-order.s: Likewise.
2019-03-26gdbserver: Add linux_get_hwcapAlan Hayward7-122/+79
In gdbserver, Tidy up calls to read HWCAP (and HWCAP2) by adding common functions, removing the Arm, AArch64, PPC and S390 specific versions. No functionality differences. gdb/gdbserver/ChangeLog: * linux-aarch64-low.c (aarch64_get_hwcap): Remove function. (aarch64_arch_setup): Call linux_get_hwcap. * linux-arm-low.c (arm_get_hwcap): Remove function. (arm_read_description): Call linux_get_hwcap. * linux-low.c (linux_get_auxv): New function. (linux_get_hwcap): Likewise. (linux_get_hwcap2): Likewise. * linux-low.h (linux_get_hwcap): New declaration. (linux_get_hwcap2): Likewise. * linux-ppc-low.c (ppc_get_auxv): Remove function. (ppc_arch_setup): Call linux_get_hwcap. * linux-s390-low.c (s390_get_hwcap): Remove function. (s390_arch_setup): Call linux_get_hwcap.
2019-03-26Provide string description of definition, visibility and resolution in LTO ↵marxin3-6/+81
plug-in. ld/ChangeLog: 2019-02-26 Martin Liska <mliska@suse.cz> * plugin.c (get_symbols): Add lto_kind_str, lto_resolution_str, lto_visibility_str and use then to inform about plugin-symbols. * testsuite/ld-plugin/plugin-12.d: Adjust expected pattern.
2019-03-26Take over Dave Brolley's maintainerships for FR30, FRV and MEP.Nick Clifton2-3/+8
* MAINTAINERS: Take over Dave Brolley's maintainerships for FR30, FRV and MEP.
2019-03-26Fix Arm buildAlan Hayward2-0/+5
Add missing include. 2019-03-26 Alan Hayward <alan.hayward@arm.com> * arm-linux-nat.c: Add include.
2019-03-25Fix use-after-free in source_cache::get_source_linesSimon Marchi2-0/+11
Commit ab42892fb7d2 ("Fix vertical scrolling of TUI source window") introduced a use-after-free in source_cache::get_source_lines. At the beginning of the method, we get the fullname of the symtab: const char *fullname = symtab_to_fullname (s); fullname points to the string owned by the symtab (s.fullname). When we later do scoped_fd desc = open_source_file (s); s.fullname gets reallocated (even though the string contents may not change). The fullname local variable now points to freed memory. To avoid it, refresh the value of fullname after calling open_source_file. Here is the ASan report: $ ./gdb -nx --data-directory=data-directory ./a.out (gdb) start Temporary breakpoint 1 at 0x1130: file test.cpp, line 12. Starting program: /home/simark/build/binutils-gdb/gdb/a.out Temporary breakpoint 1, main () at test.cpp:12 ================================================================= ==26068==ERROR: AddressSanitizer: heap-use-after-free on address 0x6210003d4100 at pc 0x7fed89a34681 bp 0x7ffd8d185d80 sp 0x7ffd8d185528 READ of size 2 at 0x6210003d4100 thread T0 #0 0x7fed89a34680 in __interceptor_strlen /build/gcc/src/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:301 #1 0x55b6edf6c2f7 in std::char_traits<char>::length(char const*) /usr/include/c++/8.2.1/bits/char_traits.h:320 #2 0x55b6edf6c9b2 in std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >::basic_string(char const*, std::allocator<char> const&) /usr/include/c++/8.2.1/bits/basic_string.h:516 #3 0x55b6ef09121b in source_cache::get_source_lines(symtab*, int, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*) /home/simark/src/binutils-gdb/gdb/source-cache.c:214 #4 0x55b6ef0a15cb in print_source_lines_base /home/simark/src/binutils-gdb/gdb/source.c:1340 #5 0x55b6ef0a2045 in print_source_lines(symtab*, int, int, enum_flags<print_source_lines_flag>) /home/simark/src/binutils-gdb/gdb/source.c:1415 #6 0x55b6ef112c87 in print_frame_info(frame_info*, int, print_what, int, int) /home/simark/src/binutils-gdb/gdb/stack.c:914 #7 0x55b6ef10e90d in print_stack_frame(frame_info*, int, print_what, int) /home/simark/src/binutils-gdb/gdb/stack.c:180 #8 0x55b6ee9592f8 in print_stop_location /home/simark/src/binutils-gdb/gdb/infrun.c:7853 #9 0x55b6ee95948f in print_stop_event(ui_out*) /home/simark/src/binutils-gdb/gdb/infrun.c:7870 #10 0x55b6ef34b962 in tui_on_normal_stop /home/simark/src/binutils-gdb/gdb/tui/tui-interp.c:98 #11 0x55b6ee01a14d in std::_Function_handler<void (bpstats*, int), void (*)(bpstats*, int)>::_M_invoke(std::_Any_data const&, bpstats*&&, int&&) /usr/include/c++/8.2.1/bits/std_function.h:297 #12 0x55b6ee965415 in std::function<void (bpstats*, int)>::operator()(bpstats*, int) const /usr/include/c++/8.2.1/bits/std_function.h:687 #13 0x55b6ee962f1b in gdb::observers::observable<bpstats*, int>::notify(bpstats*, int) const /home/simark/src/binutils-gdb/gdb/common/observable.h:106 #14 0x55b6ee95a6e7 in normal_stop() /home/simark/src/binutils-gdb/gdb/infrun.c:8142 #15 0x55b6ee93f236 in fetch_inferior_event(void*) /home/simark/src/binutils-gdb/gdb/infrun.c:3782 #16 0x55b6ee8f2641 in inferior_event_handler(inferior_event_type, void*) /home/simark/src/binutils-gdb/gdb/inf-loop.c:43 #17 0x55b6eea2a1f0 in handle_target_event /home/simark/src/binutils-gdb/gdb/linux-nat.c:4358 #18 0x55b6ee7045f1 in handle_file_event /home/simark/src/binutils-gdb/gdb/event-loop.c:733 #19 0x55b6ee704e89 in gdb_wait_for_event /home/simark/src/binutils-gdb/gdb/event-loop.c:859 #20 0x55b6ee7027b5 in gdb_do_one_event() /home/simark/src/binutils-gdb/gdb/event-loop.c:322 #21 0x55b6ee702907 in start_event_loop() /home/simark/src/binutils-gdb/gdb/event-loop.c:371 #22 0x55b6eeadfc16 in captured_command_loop /home/simark/src/binutils-gdb/gdb/main.c:331 #23 0x55b6eeae2ef9 in captured_main /home/simark/src/binutils-gdb/gdb/main.c:1174 #24 0x55b6eeae30c2 in gdb_main(captured_main_args*) /home/simark/src/binutils-gdb/gdb/main.c:1190 #25 0x55b6edf4fa89 in main /home/simark/src/binutils-gdb/gdb/gdb.c:32 #26 0x7fed88ad8222 in __libc_start_main (/usr/lib/libc.so.6+0x24222) #27 0x55b6edf4f86d in _start (/home/simark/build/binutils-gdb/gdb/gdb+0x197186d) 0x6210003d4100 is located 0 bytes inside of 4096-byte region [0x6210003d4100,0x6210003d5100) freed by thread T0 here: #0 0x7fed89a8ac19 in __interceptor_free /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cc:66 #1 0x55b6edfe12df in xfree<char> /home/simark/src/binutils-gdb/gdb/common/common-utils.h:60 #2 0x55b6edfea675 in gdb::xfree_deleter<char>::operator()(char*) const /home/simark/src/binutils-gdb/gdb/common/gdb_unique_ptr.h:34 #3 0x55b6edfe532c in std::unique_ptr<char, gdb::xfree_deleter<char> >::reset(char*) /usr/include/c++/8.2.1/bits/unique_ptr.h:382 #4 0x55b6edfe7329 in std::unique_ptr<char, gdb::xfree_deleter<char> >::operator=(std::unique_ptr<char, gdb::xfree_deleter<char> >&&) /usr/include/c++/8.2.1/bits/unique_ptr.h:289 #5 0x55b6ef09ec2b in find_and_open_source(char const*, char const*, std::unique_ptr<char, gdb::xfree_deleter<char> >*) /home/simark/src/binutils-gdb/gdb/source.c:990 #6 0x55b6ef09f56a in open_source_file(symtab*) /home/simark/src/binutils-gdb/gdb/source.c:1069 #7 0x55b6ef090f78 in source_cache::get_source_lines(symtab*, int, int, std::__cxx11::basic_string<char, std::char_traits<char>, std::allocator<char> >*) /home/simark/src/binutils-gdb/gdb/source-cache.c:205 #8 0x55b6ef0a15cb in print_source_lines_base /home/simark/src/binutils-gdb/gdb/source.c:1340 #9 0x55b6ef0a2045 in print_source_lines(symtab*, int, int, enum_flags<print_source_lines_flag>) /home/simark/src/binutils-gdb/gdb/source.c:1415 #10 0x55b6ef112c87 in print_frame_info(frame_info*, int, print_what, int, int) /home/simark/src/binutils-gdb/gdb/stack.c:914 #11 0x55b6ef10e90d in print_stack_frame(frame_info*, int, print_what, int) /home/simark/src/binutils-gdb/gdb/stack.c:180 #12 0x55b6ee9592f8 in print_stop_location /home/simark/src/binutils-gdb/gdb/infrun.c:7853 #13 0x55b6ee95948f in print_stop_event(ui_out*) /home/simark/src/binutils-gdb/gdb/infrun.c:7870 #14 0x55b6ef34b962 in tui_on_normal_stop /home/simark/src/binutils-gdb/gdb/tui/tui-interp.c:98 #15 0x55b6ee01a14d in std::_Function_handler<void (bpstats*, int), void (*)(bpstats*, int)>::_M_invoke(std::_Any_data const&, bpstats*&&, int&&) /usr/include/c++/8.2.1/bits/std_function.h:297 #16 0x55b6ee965415 in std::function<void (bpstats*, int)>::operator()(bpstats*, int) const /usr/include/c++/8.2.1/bits/std_function.h:687 #17 0x55b6ee962f1b in gdb::observers::observable<bpstats*, int>::notify(bpstats*, int) const /home/simark/src/binutils-gdb/gdb/common/observable.h:106 #18 0x55b6ee95a6e7 in normal_stop() /home/simark/src/binutils-gdb/gdb/infrun.c:8142 #19 0x55b6ee93f236 in fetch_inferior_event(void*) /home/simark/src/binutils-gdb/gdb/infrun.c:3782 #20 0x55b6ee8f2641 in inferior_event_handler(inferior_event_type, void*) /home/simark/src/binutils-gdb/gdb/inf-loop.c:43 #21 0x55b6eea2a1f0 in handle_target_event /home/simark/src/binutils-gdb/gdb/linux-nat.c:4358 #22 0x55b6ee7045f1 in handle_file_event /home/simark/src/binutils-gdb/gdb/event-loop.c:733 #23 0x55b6ee704e89 in gdb_wait_for_event /home/simark/src/binutils-gdb/gdb/event-loop.c:859 #24 0x55b6ee7027b5 in gdb_do_one_event() /home/simark/src/binutils-gdb/gdb/event-loop.c:322 #25 0x55b6ee702907 in start_event_loop() /home/simark/src/binutils-gdb/gdb/event-loop.c:371 #26 0x55b6eeadfc16 in captured_command_loop /home/simark/src/binutils-gdb/gdb/main.c:331 #27 0x55b6eeae2ef9 in captured_main /home/simark/src/binutils-gdb/gdb/main.c:1174 #28 0x55b6eeae30c2 in gdb_main(captured_main_args*) /home/simark/src/binutils-gdb/gdb/main.c:1190 #29 0x55b6edf4fa89 in main /home/simark/src/binutils-gdb/gdb/gdb.c:32 previously allocated by thread T0 here: #0 0x7fed89a8b019 in __interceptor_malloc /build/gcc/src/gcc/libsanitizer/asan/asan_malloc_linux.cc:86 #1 0x7fed88af983f in realpath@@GLIBC_2.3 (/usr/lib/libc.so.6+0x4583f) #2 0x7fed899dbbbc in __interceptor_canonicalize_file_name /build/gcc/src/gcc/libsanitizer/sanitizer_common/sanitizer_common_interceptors.inc:3297 #3 0x55b6ee376a03 in gdb_realpath(char const*) /home/simark/src/binutils-gdb/gdb/common/pathstuff.c:72 #4 0x55b6ef09ec12 in find_and_open_source(char const*, char const*, std::unique_ptr<char, gdb::xfree_deleter<char> >*) /home/simark/src/binutils-gdb/gdb/source.c:990 #5 0x55b6ef09f56a in open_source_file(symtab*) /home/simark/src/binutils-gdb/gdb/source.c:1069 #6 0x55b6ef0a0f12 in print_source_lines_base /home/simark/src/binutils-gdb/gdb/source.c:1270 #7 0x55b6ef0a2045 in print_source_lines(symtab*, int, int, enum_flags<print_source_lines_flag>) /home/simark/src/binutils-gdb/gdb/source.c:1415 #8 0x55b6ef112c87 in print_frame_info(frame_info*, int, print_what, int, int) /home/simark/src/binutils-gdb/gdb/stack.c:914 #9 0x55b6ef10e90d in print_stack_frame(frame_info*, int, print_what, int) /home/simark/src/binutils-gdb/gdb/stack.c:180 #10 0x55b6ee9592f8 in print_stop_location /home/simark/src/binutils-gdb/gdb/infrun.c:7853 #11 0x55b6ee95948f in print_stop_event(ui_out*) /home/simark/src/binutils-gdb/gdb/infrun.c:7870 #12 0x55b6ef34b962 in tui_on_normal_stop /home/simark/src/binutils-gdb/gdb/tui/tui-interp.c:98 #13 0x55b6ee01a14d in std::_Function_handler<void (bpstats*, int), void (*)(bpstats*, int)>::_M_invoke(std::_Any_data const&, bpstats*&&, int&&) /usr/include/c++/8.2.1/bits/std_function.h:297 #14 0x55b6ee965415 in std::function<void (bpstats*, int)>::operator()(bpstats*, int) const /usr/include/c++/8.2.1/bits/std_function.h:687 #15 0x55b6ee962f1b in gdb::observers::observable<bpstats*, int>::notify(bpstats*, int) const /home/simark/src/binutils-gdb/gdb/common/observable.h:106 #16 0x55b6ee95a6e7 in normal_stop() /home/simark/src/binutils-gdb/gdb/infrun.c:8142 #17 0x55b6ee93f236 in fetch_inferior_event(void*) /home/simark/src/binutils-gdb/gdb/infrun.c:3782 #18 0x55b6ee8f2641 in inferior_event_handler(inferior_event_type, void*) /home/simark/src/binutils-gdb/gdb/inf-loop.c:43 #19 0x55b6eea2a1f0 in handle_target_event /home/simark/src/binutils-gdb/gdb/linux-nat.c:4358 #20 0x55b6ee7045f1 in handle_file_event /home/simark/src/binutils-gdb/gdb/event-loop.c:733 #21 0x55b6ee704e89 in gdb_wait_for_event /home/simark/src/binutils-gdb/gdb/event-loop.c:859 #22 0x55b6ee7027b5 in gdb_do_one_event() /home/simark/src/binutils-gdb/gdb/event-loop.c:322 #23 0x55b6ee702907 in start_event_loop() /home/simark/src/binutils-gdb/gdb/event-loop.c:371 #24 0x55b6eeadfc16 in captured_command_loop /home/simark/src/binutils-gdb/gdb/main.c:331 #25 0x55b6eeae2ef9 in captured_main /home/simark/src/binutils-gdb/gdb/main.c:1174 #26 0x55b6eeae30c2 in gdb_main(captured_main_args*) /home/simark/src/binutils-gdb/gdb/main.c:1190 #27 0x55b6edf4fa89 in main /home/simark/src/binutils-gdb/gdb/gdb.c:32 #28 0x7fed88ad8222 in __libc_start_main (/usr/lib/libc.so.6+0x24222) gdb/ChangeLog: * source-cache.c (source_cache::get_source_lines): Re-read fullname after calling open_source_file.
2019-03-26Automatic date update in version.inGDB Administrator1-1/+1
2019-03-26Fix relpp may be used uninitializedAlan Modra2-1/+5
* objdump.c (dump_relocs_in_section): Warning fix.
generated by cgit v1.1 at 2025-01-13 10:33:24 +0000