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2016-07-27Begin implementing ARC NPS-400 Accelerator instructionsGraham Markall11-126/+724
opcodes * arc-nps400-tbl.h: Change block comments to GNU format. * arc-dis.c: Add new globals addrtypenames, addrtypenames_max, and addtypeunknown. (get_addrtype): New function. (print_insn_arc): Print colons and address types when required. * arc-opc.c: Add MAKE_INSERT_NPS_ADDRTYPE macro and use to define insert and extract functions for all address types. (arc_operands): Add operands for colon and all address types. * arc-nps-400-tbl.h: Add NPS-400 BMU instructions to opcode table. * arc-opc.c: Add NPS_BD_TYPE and NPS_BMU_NUM operands, insert_nps_bd_num_buff and extract_nps_bd_num_buff functions. * arc-nps-400-tbl.h: Add NPS-400 PMU instructions to opcode table. * arc-opc.c: Add NPS_PMU_NXT_DST and NPS_PMU_NUM_JOB operands, insert_nps_pmu_num_job and extract_nps_pmu_num_job functions. include * opcode/arc.h: Add ARC_OPERAND_ADDRTYPE, ARC_OPERAND_COLON. Add the arc_nps_address_type enum and ARC_NUM_ADDRTYPES. * opcode/arc.h: Add BMU to insn_class_t enum. * opcode/arc.h: Add PMU to insn_class_t enum. gas * config/tc-arc.c: Add new global arc_addrtype_hash. Define O_colon and O_addrtype. (debug_exp): Add O_colon and O_addrtype. (tokenize_arguments): Handle colon and address type tokens. (declare_addrtype): New function. (md_begin): Initialise arc_addrtype_hash. (arc_parse_name): Add lookup of address types. (assemble_insn): Handle colons and address types by ignoring them. * testsuite/gas/arc/nps400-8.s: New file. * testsuite/gas/arc/nps400-8.d: New file. * testsuite/gas/arc/nps400-8.s: Add PMU instruction tests. * testsuite/gas/arc/nps400-8.d: Add expected PMU instruction output.
2016-07-27Restrict linker garbage collection personality test to cfi enabled targets.Nick Clifton2-2/+6
* testsuite/ld-gc/personality.d: Use "target cfi" to restrict the test to targets which support cfi.
2016-07-27Fix seg-fault when running garbage collection on coff binaries.Nick Clifton2-1/+14
PR ld/20401 * coffgen.c (fini_reloc_cookie_rels): Check for the extistence of the coff_section_data before using it.
2016-07-27Fix warning in ldbuildid.c mingw32 codeIgor Kudrin2-1/+6
* ldbuildid.c (generate_build_id): Warning fix.
2016-07-27Fix aarch64_relocs.sh file modeAlan Modra1-0/+0
2016-07-27Automatic date update in version.inGDB Administrator1-1/+1
2016-07-27Wean gdb and sim off private libbfd.h headerAlan Modra11-11/+25
The major reason this header was needed, bfd_default_set_arch_mach, has now moved to bfd.h. gdb/ * amd64-darwin-tdep.c: Don't include libbfd.h. * i386-darwin-tdep.c: Likewise. * rs6000-nat.c: Likewise. * rs6000-tdep.c: Likewise. sim/aarch64/ * memory.c: Don't include libbfd.h. sim/rl78/ * load.c: Don't include libbfd.h. (rl78_load): Don't use private iovec seek or read. sim/rx/ * load.c: Don't include libbfd.h. (rx_load): Don't use private iovec seek or read.
2016-07-26Fix PR server/20414 - x32 gdbserver always crashes inferiorPedro Alves2-4/+15
Debugging an x32 process with an x32 gdbserver always results in: (gdb) c Continuing. Program received signal SIGSEGV, Segmentation fault. 0xf7de9600 in _dl_debug_state () from target:/libx32/ld-linux-x32.so.2 (gdb) Looking at the remote debug logs reveals the problem, here: Packet received: T05swbreak:;06:a0d4ffff00000000;07:b8d3ffff00000000;10:0096def701000000;thread:p7d7a.7d7a;core:1; ^^^^^^^^^^^^^^^^ The underlined value is the expedited value of RIP (in little endian). But notice that 01 in 0x01f7de9600, while gdb says the program stopped at 0xf7de9600. 0x01ffffffff is over 32 bits, which indicates that something wen't wrong somewhere in gdbserver. The problem turns out to be in gdbserver's x86_get_pc / x86_set_pc routines, where "unsigned long" is used assuming that it can fit a 64-bit value, while unsigned long is actually 32-bit on x32. The result is that collect_register_by_name / supply_register_by_name end up reading/writing random bytes off the stack. Fix this by using explicit uint64_t instead of unsigned long. For consistency, use uint32_t instead of unsigned int in the 32-bit paths. gdb/gdbserver/ChangeLog: 2016-07-26 Pedro Alves <palves@redhat.com> PR server/20414 * linux-x86-low.c (x86_get_pc, x86_set_pc): Use uint64_t instead of unsigned long for 64-bit registers and use uint32_t instead of unsigned int for 32-bit registers.
2016-07-26PR python/20190 - compute TLS symbol without a frameTom Tromey9-69/+169
PR python/20190 arose from an exception I noticed when trying to use the Python unwinder for Spider Monkey in Firefox. The problem is that the unwinder wants to examine the value of a thread-local variable. However, sympy_value rejects this because symbol_read_needs_frame returns true for a TLS variable. This problem arose once before, though in a different context: https://sourceware.org/bugzilla/show_bug.cgi?id=11803 At the time Pedro and Daniel pointed out a simpler way to fix that bug (see links in 20190 if you are interested); but for this new bug I couldn't think of a similar fix and ended up implementing Daniel's other suggestion: https://sourceware.org/ml/gdb-patches/2010-07/msg00393.html That is, this patch makes it possible to detect whether a symbol needs a specific frame, or whether it just needs the inferior to have registers. Built and regtested on x86-64 Fedora 24. 2016-07-26 Tom Tromey <tom@tromey.com> * symtab.c (register_symbol_computed_impl): Update. PR python/20190: * value.h (symbol_read_needs): Declare. (symbol_read_needs_frame): Add comment. * symtab.h (struct symbol_computed_ops) <read_variable>: Update comment. <get_symbol_read_needs>: Rename. Change return type. * findvar.c (symbol_read_needs): New function. (symbol_read_needs_frame): Rewrite. (default_read_var_value): Use symbol_read_needs. * dwarf2loc.c (struct symbol_needs_baton): Rename. <needs>: Renamed from needs_frame. Changed type. (needs_frame_read_addr_from_reg, symbol_needs_get_reg_value) (symbol_needs_read_mem, symbol_needs_frame_base) (symbol_needs_frame_cfa, symbol_needs_tls_address) (symbol_needs_dwarf_call): Rename. (needs_dwarf_reg_entry_value): Update. (symbol_needs_ctx_funcs, dwarf2_loc_desc_get_symbol_read_needs): Rename and update. (locexpr_get_symbol_read_needs, loclist_symbol_needs): Likewise. (dwarf2_locexpr_funcs, dwarf2_loclist_funcs): Update. * defs.h (enum symbol_needs_kind): New. 2016-07-26 Tom Tromey <tom@tromey.com> PR python/20190: * gdb.threads/tls.exp (check_thread_local): Add python symbol test.
2016-07-26MIPS/GAS: Respect the `insn32' mode in branch relaxationMaciej W. Rozycki10-66/+1248
Complement: commit 833794fc12d98139fc33f6b0b85feb03471007b7 Author: Maciej W. Rozycki <macro@linux-mips.org> Date: Tue Jun 25 18:02:34 2013 +0000 <https://sourceware.org/ml/binutils/2013-06/msg00104.html>, ("microMIPS insn32 mode support"), and fix an issue with microMIPS branch relaxation producing 16-bit instructions in the `insn32' mode. Use equivalent 32-bit instruction sequences. gas/ * config/tc-mips.c (RELAX_MICROMIPS_ENCODE): Add `insn32' flag. (RELAX_MICROMIPS_INSN32): New macro. (RELAX_MICROMIPS_UNCOND, RELAX_MICROMIPS_COMPACT) (RELAX_MICROMIPS_LINK, RELAX_MICROMIPS_RELAX32) (RELAX_MICROMIPS_TOOFAR16, RELAX_MICROMIPS_MARK_TOOFAR16) (RELAX_MICROMIPS_CLEAR_TOOFAR16, RELAX_MICROMIPS_TOOFAR32) (RELAX_MICROMIPS_MARK_TOOFAR32, RELAX_MICROMIPS_CLEAR_TOOFAR32): Shift bits. (append_insn): Record `mips_opts.insn32' with relaxed microMIPS branches. (relaxed_micromips_32bit_branch_length): Handle the `insn32' mode. (md_convert_frag): Likewise. * testsuite/gas/mips/micromips-branch-relax.s: Add `insn32' conditionals. * testsuite/gas/mips/micromips-branch-relax.l: Update line numbers accordingly. * testsuite/gas/mips/micromips-branch-relax-pic.l: Likewise. * testsuite/gas/mips/micromips-branch-relax-insn32.d: New test. * testsuite/gas/mips/micromips-branch-relax-insn32-pic.d: New test. * testsuite/gas/mips/micromips-branch-relax-insn32.l: New stderr output. * testsuite/gas/mips/micromips-branch-relax-insn32-pic.l: New stderr output. * testsuite/gas/mips/mips.exp: Run the new tests.
2016-07-26MIPS/BFD: Handle branches in PLT compression selectionMaciej W. Rozycki17-27/+559
Complement: commit 1bbce132647e6d72aaa065cce5c1d5dd6585c2b2 Author: Maciej W. Rozycki <macro@linux-mips.org> Date: Mon Jun 24 23:55:46 2013 +0000 <https://sourceware.org/ml/binutils/2013-06/msg00077.html>, ("MIPS: Compressed PLT/stubs support"), and also choose between regular and compressed PLT entries as appropriate for any branches referring. bfd/ * elfxx-mips.c (mips_elf_calculate_relocation): Handle branches in PLT compression selection. (_bfd_mips_elf_check_relocs): Likewise. ld/ * testsuite/ld-mips-elf/compressed-plt-1.s: Add branch support. * testsuite/ld-mips-elf/compressed-plt-1a.s: Likewise. * testsuite/ld-mips-elf/compressed-plt-1b.s: Likewise. * testsuite/ld-mips-elf/compressed-plt-1-o32-branch.od: New test. * testsuite/ld-mips-elf/compressed-plt-1-o32-branch.rd: New test. * testsuite/ld-mips-elf/compressed-plt-1-o32-mips16-bronly.od: New test. * testsuite/ld-mips-elf/compressed-plt-1-o32-mips16-bronly.rd: New test. * testsuite/ld-mips-elf/compressed-plt-1-o32-mips16-branch.od: New test. * testsuite/ld-mips-elf/compressed-plt-1-o32-mips16-branch.rd: New test. * testsuite/ld-mips-elf/compressed-plt-1-o32-umips-bronly.od: New test. * testsuite/ld-mips-elf/compressed-plt-1-o32-umips-bronly.rd: New test. * testsuite/ld-mips-elf/compressed-plt-1-o32-umips-branch.od: New test. * testsuite/ld-mips-elf/compressed-plt-1-o32-umips-branch.rd: New test. * testsuite/ld-mips-elf/mips-elf.exp: Run the new tests.
2016-07-26Fix PR gdb/20413 - x32: linux_ptrace_test_ret_to_nx: Cannot PTRACE_PEEKUSERPedro Alves2-12/+16
An x32 gdb always issues this warning: (gdb) start Temporary breakpoint 1 at 0x4043e9: file foo.c, line 25. Starting program: a.out warning: linux_ptrace_test_ret_to_nx: Cannot PTRACE_PEEKUSER: Input/output error Temporary breakpoint 1, main (argc=1, argv=0xffffd544) at foo.c:25 25 { (gdb) As described in Linux commit 55283e253771 (x32: Add ptrace for x32): [...] PTRACE_PEEKUSR and PTRACE_POKEUSR are only allowed to access segment and debug registers. [...] The fix is to use PTRACE_GETREGS instead. gdb/ChangeLog: 2016-07-26 Pedro Alves <palves@redhat.com> * nat/linux-ptrace.c: Include "gregset.h". (linux_ptrace_test_ret_to_nx): Use PTRACE_GETREGS instead of PTRACE_PEEKUSER.
2016-07-26Fix PR gdb/20287 - x32 and "gdb_static_assert (sizeof (nat_siginfo_t) == ↵Pedro Alves5-149/+193
sizeof (siginfo_t))" Building an x32 gdb trips on a static assertion: In file included from .../src/gdb/common/common-defs.h:71:0, from .../src/gdb/nat/amd64-linux-siginfo.c:21: .../src/gdb/common/gdb_assert.h:26:66: error: size of array ‘never_defined_just_used_for_checking’ is negative extern int never_defined_just_used_for_checking[(expr) ? 1 : -1] ^ .../src/gdb/nat/amd64-linux-siginfo.c:113:1: note: in expansion of macro ‘gdb_static_assert’ gdb_static_assert (sizeof (nat_siginfo_t) == sizeof (siginfo_t)); ^ The problem is that the way nat_siginfo_t is defined, it can only match the host's siginfo_t object when gdb is built as a 64-bit program. Several bits of nat_siginfo_t are off: - nat_siginfo_t's _pad field's definition is: int _pad[((128 / sizeof (int)) - 4)]; while /usr/include/bits/siginfo.h has: # define __SI_MAX_SIZE 128 # if __WORDSIZE == 64 # define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 4) # else # define __SI_PAD_SIZE ((__SI_MAX_SIZE / sizeof (int)) - 3) # endif and __WORDSIZE == 32 for x32. This is what causes the size of nat_siginfo_t to be wrong and the assertion to fail. - the nat_clock_t type is incorrect for 64-bit. We have this: /* For native 64-bit, clock_t in _sigchld is 64bit aligned at 4 bytes. */ typedef long __attribute__ ((__aligned__ (4))) nat_clock_t; however, /usr/include/bits/siginfo.h has: # if defined __x86_64__ && __WORDSIZE == 32 /* si_utime and si_stime must be 4 byte aligned for x32 to match the kernel. We align siginfo_t to 8 bytes so that si_utime and si_stime are actually aligned to 8 bytes since their offsets are multiple of 8 bytes. */ typedef __clock_t __attribute__ ((__aligned__ (4))) __sigchld_clock_t; # define __SI_ALIGNMENT __attribute__ ((__aligned__ (8))) # else typedef __clock_t __sigchld_clock_t; # define __SI_ALIGNMENT # endif So we're currently forcing 4-byte alignment on clock_t, when it should only be so for x32, not 64-bit. The fix: - Leaves nat_siginfo_t strictly for the 64-bit ABI. - Adds a new typedef for the siginfo type that ptrace uses (ptrace_siginfo_t). An x32 gdb always gets/sets an x32 siginfo_t type with PTRACE_GETSIGINFO/PTRACE_SETSIGINFO. - Uses this new ptrace_siginfo_t type instead of nat_siginfo_t as the intermediate conversion type. gdb/ChangeLog: 2016-07-26 Pedro Alves <palves@redhat.com> * amd64-linux-nat.c (amd64_linux_siginfo_fixup): Rename 'native' parameter to 'ptrace'. * nat/amd64-linux-siginfo.c (GDB_SI_SIZE): New define. (nat_uptr_t): New an unsigned long. (nat_clock_t): Remove attribute __aligned__. (struct nat_timeval): Delete. (nat_siginfo_t): Remove attribute __aligned__. (ptrace_siginfo_t): Define. (compat_siginfo_from_siginfo, siginfo_from_compat_siginfo) (compat_x32_siginfo_from_siginfo) (siginfo_from_compat_x32_siginfo): Make 'from' parameter const. Convert through a ptrace_siginfo_t instead of a nat_siginfo_t. Remove casts. (amd64_linux_siginfo_fixup_common): Rename 'native' parameter to 'ptrace'. Remove static assertions. (top level): New static assertions. gdb/gdbserver/ChangeLog: 2016-07-26 Pedro Alves <palves@redhat.com> * linux-x86-low.c (x86_siginfo_fixup): Rename 'native' parameter to 'ptrace'.
2016-07-26Add support for creating uuid based build-id's in a MinGW32 environment.Igor Kudrin2-10/+41
ld * ldbuildid.c: Changes for MinGW32: Include windows.h and rpcdce.h. (validate_build_id_style): Allow "uuid" style. (generate_build_id): Fill in id_bits using UuidCreate().
2016-07-26[Gold, aarch64] Implement some AArch64 relocs.Han Shen8-9/+300
This CL implemented the following relocs for AArch64 target. - R_AARCH64_MOVW_UABS_G* - R_AARCH64_MOVW_SABS_G* relocations gold/ChangeLog 2016-07-26 Igor Kudrin <ikudrin@accesssoftek.com> * aarch64-reloc-property.cc (Rvalue_bit_select_impl): New class. (rvalue_bit_select): Use Rvalue_bit_select_impl. * aarch64-reloc.def (MOVW_UABS_G0, MOVW_UABS_G0_NC, MOVW_UABS_G1, MOVW_UABS_G1_NC, MOVW_UABS_G2, MOVW_UABS_G2_NC, MOVW_UABS_G3, MOVW_SABS_G0, MOVW_SABS_G1, MOVW_SABS_G2): New relocations. * aarch64.cc (Target_aarch64::Scan::local): Add cases for new MOVW_UABS_* and MOVW_SABS_* relocations. (Target_aarch64::Scan::global): Likewise. (Target_aarch64::Relocate::relocate): Add cases and handlings for new MOVW_UABS_* and MOVW_SABS_* relocations. * testsuite/Makefile.am (aarch64_relocs): New test. * testsuite/Makefile.in: Regenerate. * testsuite/aarch64_globals.s: New test source file. * testsuite/aarch64_relocs.s: Likewise. * testsuite/aarch64_relocs.sh: New test script.
2016-07-26btrace, testsuite: fix assembly source file selectionMarkus Metzger5-18/+42
Some btrace tests use assembly source files. They use the target triplet to distinguish between x86_64 and ia32 ISA. This does not work for -m32 tests without setting the target triplet to i686-?-?. Instead use is_amd64_regs_target to distinguish between x86_64 and ia32 ISA. See also https://sourceware.org/ml/gdb-patches/2016-07/msg00256.html. testsuite/ * gdb.btrace/record_goto.exp: Use is_amd64_regs_target for selecting assembly source files. * gdb.btrace/stepi.exp: Use is_amd64_regs_target for selecting assembly source files. * gdb.btrace/tailcall.exp: Use is_amd64_regs_target for selecting assembly source files. * gdb.btrace/tailcall-only.exp: Use is_amd64_regs_target for selecting assembly source files.
2016-07-26Automatic date update in version.inGDB Administrator1-1/+1
2016-07-25Handle correctly passing a bad interpreter name to new-uiSimon Marchi5-10/+73
When a bad interpreter name is passed to new-ui, such as: (gdb) new-ui bloop /dev/pts/10 A partially created UI is left in the UI list, with interp set to NULL. Trying to do anything that will print on this UI (such as "start") will cause a segmentation fault. Changes in v2: - Use with_test_prefix to namespace test procedures - Give an explicit stable test name - Add a "bad terminal path" test - Remove useless runto_main - Add missing intro comments I did not factor out the pty spawn, as there is some magic involved I don't quite understand. But it wouldn't bring that much anyway. gdb/ChangeLog: * top.h (make_delete_ui_cleanup): New declaration. * top.c (delete_ui_cleanup): New function. (make_delete_ui_cleanup): New function. (new_ui_command): Create restore_ui cleanup earlier, create a delete_ui cleanup and discard it on success. gdb/testsuite/ChangeLog: * gdb.base/new-ui.exp (do_test_invalid_args): New procedure.
2016-07-25linux-procfs: Handle lowercase "t (tracing stop)" statePedro Alves2-0/+9
Since Linux 2.6.33, /proc/PID/status shows "t (tracing stop)", with lowercase 't'. Because GDB is only expecting "T (tracing stop)", GDB can incorrectly suppress errors in check_ptrace_stopped_lwp_gone: 1578 if (!check_ptrace_stopped_lwp_gone (lp)) 1579 throw_exception (ex); Ref: https://sourceware.org/ml/gdb-patches/2016-06/msg00072.html 2016-07-25 Pedro Alves <palves@redhat.com> Jan Kratochvil <jan.kratochvil@redhat.com> * nat/linux-procfs.c (parse_proc_status_state): Handle lowercase 't'.
2016-07-25linux-procfs: Introduce enum proc_statePedro Alves2-19/+79
Parse the process's /proc/PID/status state into an enum instead of the current scheme of passing state strings around. gdb/ChangeLog: 2016-07-25 Pedro Alves <palves@redhat.com> * nat/linux-procfs.c (enum proc_state): New enum. (parse_proc_status_state): New function. (linux_proc_pid_get_state): Replace output string buffer parameter with an output proc_state parameter. Use parse_proc_status_state. (linux_proc_pid_is_gone): Adjust to use proc_state values. (linux_proc_pid_has_state): Change type of 'state' parameter; now an enum proc_state. Adjust to linux_proc_pid_get_state interface change. (linux_proc_pid_is_stopped) (linux_proc_pid_is_trace_stopped_nowarn) (linux_proc_pid_is_zombie_maybe_warn): Adjust to linux_proc_pid_get_state interface change.
2016-07-25Add myself as a write-after-approval GDB maintainer.Tim Wiederhake2-0/+5
2016-07-25btrace: Resume recording after disconnect.Tim Wiederhake10-14/+259
This patch allows gdbserver to continue recording after disconnect. On reconnect, the recorded data is accessible to gdb as if no disconnect happened. A possible application for this feature is remotely examine bugs that occur at irregular intervals, where maintaining a gdb connection is inconvenient. This also fixes the issue mentioned here: https://sourceware.org/ml/gdb-patches/2015-11/msg00424.html Signed-off-by: Tim Wiederhake <tim.wiederhake@intel.com> gdb/ChangeLog: * NEWS: Resume btrace on reconnect. * record-btrace.c: Added record-btrace.h include. (record_btrace_open): Split into this and ... (record_btrace_push_target): ... this. (record_btrace_disconnect): New function. (init_record_btrace_ops): Use record_btrace_disconnect. * record-btrace.h: New file. * remote.c: Added record-btrace.h include. (remote_start_remote): Check recording status. (remote_btrace_maybe_reopen): New function. gdb/doc/ChangeLog: * gdb.texinfo: Resume btrace on reconnect. gdb/testsuite/ChangeLog: * gdb.btrace/reconnect.c: New file. * gdb.btrace/reconnect.exp: New file. Change-Id: I95e8b0ab8a89e58591aba0e63818cee82fd211bc
2016-07-25Revise targets able to run ELF 64k section testAlan Modra2-8/+10
* testsuite/ld-elf/sec64k.exp: Run test for arc, msp430, or1k and m32r. Correct comment. Relax ld -r match to account for msp increased number of default sections.
2016-07-25Automatic date update in version.inGDB Administrator1-1/+1
2016-07-24Automatic date update in version.inGDB Administrator1-1/+1
2016-07-23Implement catch syscall groupGabriel Krisman Bertazi42-2468/+7538
Implement support to add catchpoints for a group of related syscalls using the syntax: (gdb) catch syscall group:<group> or (gdb) catch syscall g:<group> Several groups are predefined in the xml files for all architectures supported by GDB over Linux. They are based on the groups defined by strace. gdb/ * xml-syscall.c (get_syscalls_by_group): New. (get_syscall_group_names): New. (struct syscall_group_desc): New structure to store group data. (struct syscalls_info): Include field to store the group list. (sysinfo_free_syscall_group_desc): New. (free_syscalls_info): Free group list. (syscall_group_create_syscall_group_desc): New. (syscall_group_add_syscall): New. (syscall_create_syscall_desc): Add syscall to its groups. (syscall_start_syscall): Load group attribute. (syscall_group_get_group_by_name): New. (xml_list_syscalls_by_group): New. (xml_list_of_groups): New. * xml-syscall.h (get_syscalls_by_group): Export function to retrieve a list of syscalls filtered by the group name. (get_syscall_group_names): Export function to retrieve the list of syscall groups. * break-catch-syscall.c (catch_syscall_split_args): Verify if argument is a syscall group and expand it to a list of syscalls when creating catchpoints. (catch_syscall_completer): Add word completion for system call groups. * configure.ac: Include dependency for xsltproc when building in maintainer-mode. * break-catch-syscall.c (_initialize_breakpoint): Update catch syscall command documentation. * NEWS: Include section about catching groups of syscalls. * configure: Regenerate. * data-directory/Makefile.in: Generate syscall xml when building in maintainer mode. * syscalls/gdb-syscalls.dtd: Include group attribute to the syscall element. * syscalls/apply-defaults.xsl: New. * syscalls/linux-defaults.xml.in: New. * syscalls/aarch64-linux.xml: Rename to aarch64-linux.xml.in. * syscalls/amd64-linux.xml: Rename to amd64-linux.xml.in. * syscalls/arm-linux.xml: Rename to arm-linux.xml.in. * syscalls/bfin-linux.xml: Rename to bfin-linux.xml.in. * syscalls/i386-linux.xml: Rename to i386-linux.xml.in. * syscalls/mips-n32-linux.xml: Rename to mips-n32-linux.xml.in. * syscalls/mips-n64-linux.xml: Rename to mips-n64-linux.xml.in. * syscalls/mips-o32-linux.xml: Rename to mips-o32-linux.xml.in. * syscalls/ppc-linux.xml: Rename to ppc-linux.xml.in. * syscalls/ppc64-linux.xml: Rename to ppc64-linux.xml.in. * syscalls/s390-linux.xml: Rename to s390-linux.xml.in. * syscalls/s390x-linux.xml: Rename to s390x-linux.xml.in. * syscalls/sparc-linux.xml: Rename to sparc-linux.xml.in. * syscalls/sparc64-linux.xml: Rename to sparc64-linux.xml.in. * syscalls/aarch64-linux.xml: Regenerate. * syscalls/amd64-linux.xml: Regenerate. * syscalls/arm-linux.xml: Regenerate. * syscalls/i386-linux.xml: Regenerate. * syscalls/mips-n32-linux.xml: Regenerate. * syscalls/mips-n64-linux.xml: Regenerate. * syscalls/mips-o32-linux.xml: Regenerate. * syscalls/ppc-linux.xml: Regenerate. * syscalls/ppc64-linux.xml: Regenerate. * syscalls/s390-linux.xml: Regenerate. * syscalls/s390x-linux.xml: Regenerate. * syscalls/sparc-linux.xml: Regenerate. * syscalls/sparc64-linux.xml: Regenerate. gdb/testsuite/ * gdb.base/catch-syscall.exp (do_syscall_tests): Add call to test_catch_syscall_group. (test_catch_syscall_group): New. gdb/doc/ * gdb.texinfo (Set Catchpoints): Add 'group' argument to catch syscall.
2016-07-23Fix ARMv8.1/v8.2 for hw watchpoint and breakpointAndrew Pinski3-2/+17
The problem here is ARMv8.1 (and ARMv8.2) define a different debug version than ARMv8 (7 and 8 respectively). This fixes hw watchpoints and breakpoints by checking for those debug versions too. Committed as obvious after a test on aarch64-linux-gnu (on a ThunderX machine which has ARMv8.1 support enabled). ChangeLog: * nat/aarch64-linux-hw-point.c (aarch64_linux_get_debug_reg_capacity): Handle ARMv8.1 and ARMv8.2 debug versions. * nat/aarch64-linux-hw-point.h (AARCH64_DEBUG_ARCH_V8_1): New define. (AARCH64_DEBUG_ARCH_V8_2): New define. Signed-off-by: Andrew Pinski <apinski@cavium.com>
2016-07-23Support JIT debugging on MS-WindowsРуслан Ижбулатов5-0/+76
gdb/ChangeLog: 2016-06-30 Руслан Ижбулатов <lrn1986@gmail.com> PR gdb/14529 * windows-nat.c (signal_event_command): New command 'signal-event' for W32 JIT debug support. * NEWS: Add an entry about the new 'signal-event' command. gdb/doc/ChangeLog: 2016-06-30 Руслан Ижбулатов <lrn1986@gmail.com> * gdb.texinfo (Cygwin Native): Document the new 'signal-event' command.
2016-07-23Automatic date update in version.inGDB Administrator1-1/+1
2016-07-22PR rust/20162 - fix gdb regressions caused by rust 1.10Tom Tromey2-2/+29
PR rust/20162 started life as a reminder to test gdb with versions of rust after 1.8; but now concerns some gdb regressions seen with rust 1.10 ("beta") and 1.11 ("nightly"). The failures turn out to be a discrepancy between how rustc emits DWARF and how gdb interprets it. In particular, rustc will emit DWARF like: <2><bc>: Abbrev Number: 9 (DW_TAG_structure_type) <bd> DW_AT_name : (indirect string, offset: 0x46a): HasMethods <c1> DW_AT_byte_size : 4 ... <3><cc>: Abbrev Number: 11 (DW_TAG_subprogram) ... <df> DW_AT_name : (indirect string, offset: 0x514f): new gdb wants to see a separate top-level DW_TAG_subprogram that refers to this one via DW_AT_specification; but rustc doesn't emit one. By my reading of DWARF 4 5.5.7, this is ok, and gdb is incorrect here. Fixing this involved a new case in scan_partial_symbols, and then a further change in process_structure_scope to account for the fact that, in Rust, such functions are not methods and should not be attached to the structure type. Next, it turns out that rust is emitting bad values for DW_AT_linkage_name, e.g.: <db> DW_AT_linkage_name: (indirect string, offset: 0x422): _ZN7methods8{{impl}}3newE The the "{{impl}}" stuff is apparently some side effect of a change to the compiler's internal representation. Oops! This also had a simple fix -- disregard these mangled names. With these changes, there are no regressions in the gdb Rust tests with either 1.10 or 1.11. 1.9, the stable release, is still pretty broken, but I think there's nothing much to do about that. These changes are a bit hackish, but no worse, I think, than other kinds of quirk handling already done in the DWARF parser. I have reported all the rustc bugs upstream. I plan to remove these hacks from gdb some suitable time after they have been fixed in released versions of Rust. 2016-07-22 Tom Tromey <tom@tromey.com> PR rust/20162: * dwarf2read.c (scan_partial_symbols) <DW_TAG_structure_type>: Call scan_partial_symbols for children when reading a Rust CU. (dwarf2_physname): Ignore invalid DW_AT_linkage_name generated by rustc. (process_structure_scope) <DW_TAG_subprogram>: Call read_func_scope for Rust.
2016-07-22Get "num" as unsigned in ctfYao Qi2-1/+6
I see the following fail due to the warning, -trace-frame-collected^M [warning] Extracting signed value from an unsigned int (num)^M .... FAIL: gdb.trace/mi-trace-frame-collected.exp: ctf: -trace-frame-collected In ctf metadata, "num" in "tsv" is defined as unint32_t, ctf_save_write_metadata (&writer->tcs, "event {\n\tname = \"tsv\";\n\tid = %u;\n" "\tfields := struct { \n" "\t\tuint64_t val;\n" "\t\tuint32_t num;\n" "\t};\n" "};\n", CTF_EVENT_ID_TSV); so we should read it as unsigned. The patch below fixes the fail by changing to bt_ctf_get_uint64. gdb: 2016-07-22 Yao Qi <yao.qi@linaro.org> * ctf.c (ctf_traceframe_info): Call bt_ctf_get_uint64 rather than bt_ctf_get_int64.
2016-07-22Fix segfault in ARC linker when generating got entries for local symbols.Cupertino Miranda5-13/+34
bfd * arc-got.h (relocate_fix_got_relocs_for_got_info): Handle the case where there's no elf_link_hash_entry while processing GOT_NORMAL got entries. ld * testsuite/ld-arc/got-01.d: New file. * testsuite/ld-arc/got-01.s: New file.
2016-07-22Automatic date update in version.inGDB Administrator1-1/+1
2016-07-21Set BFD_VERSION to 2.27.51H.J. Lu13-61/+86
bfd/ * version.m4 (BFD_VERSION): Set to 2.27.51. * configure: Regenerated. binutils/ * configure: Regenerated. gas/ * configure: Regenerated. gprof/ * configure: Regenerated. ld/ * configure: Regenerated. opcodes/ * configure: Regenerated.
2016-07-21Move ChangeLog entry for PR ld/20376H.J. Lu2-6/+6
2016-07-21Allow empty struct expressions in RustTom Tromey6-4/+26
I learned recently that empty struct expressions, like "X{}", have been promoted from experimental to stable in Rust. This patch changes the Rust expression parser to allow this case. New test case included. Built and regtested on x86-64 Fedora 23, using Rust 1.11 beta. 2016-07-21 Tom Tromey <tom@tromey.com> * rust-lang.c (rust_tuple_struct_type_p): Return false for empty structs. * rust-exp.y (struct_expr_list): Allow empty elements. 2016-07-21 Tom Tromey <tom@tromey.com> * gdb.rust/simple.rs (main): Use empty struct expression. * gdb.rust/simple.exp: Add tests for empty struct expression.
2016-07-21Add -Wunused-but-set-* to buildTom Tromey5-3/+13
This adds -Wunused-but-set-variable and -Wunused-but-set-parameter to configure. 2016-07-21 Tom Tromey <tom@tromey.com> * configure: Rebuild. * warning.m4 (AM_GDB_WARNINGS) <build_warnings>: Add -Wunused-but-set-parameter, -Wunused-but-set-variable. 2016-07-21 Tom Tromey <tom@tromey.com> * configure: Rebuild.
2016-07-21Fix djgpp gdb buildPedro Alves4-7/+35
- A few missing casts required by C++, resulting in: ../../src/gdb/ser-go32.c:795:21: error: invalid conversion from 'const void*' to 'const char*' [-fpermissive] etc. - dos_noop has an incompatible prototype with struct serial_ops's setparity, resulting in: ../../src/gdb/ser-go32.c:874:1: error: invalid conversion from 'int (*)(serial*)' to 'int (*)(serial*, int)' [-fpermissive] (I thought of calling the ser-base.c default methods, but djgpp doesn't include ser-base.c in the build.) gdb/ChangeLog: 2016-07-21 Pedro Alves <palves@redhat.com> * go32-nat.c (go32_create_inferior): Add cast. * ser-go32.c (dos_noop): Delete. (dos_flush_output, dos_setparity, dos_drain_output): New functions. (dos_write): Add cast. (dos_ops): Use dos_flush_output, dos_setparity and dos_drain_output. * top.c (do_chdir_cleanup): Add cast.
2016-07-21Remove unused variable in windows-nat.cPedro Alves2-2/+5
Leave the call for side effects. gdb/ChangeLog: 2016-07-21 Pedro Alves <palves@redhat.com> * windows-nat.c (handle_exception): Remove "th".
2016-07-21Remove unused variable in gdb/varobj.c when built without Python supportPedro Alves2-2/+7
gdb/ChangeLog: 2016-07-21 Pedro Alves <palves@redhat.com> * varobj.c (varobj_value_get_print_value): Move "gdbarch" to block scope that uses it.
2016-07-21Fix cast to 'gdb_breakpoint *'Yao Qi2-1/+6
c-mode buildbot catches a build problem, gcc -g -O2 -I. -I../../../binutils-gdb/gdb/gdbserver -I../../../binutils-gdb/gdb/gdbserver/../common -I../../../binutils-gdb/gdb/gdbserver/../regformats -I../../../binutils-gdb/gdb/gdbserver/.. -I../../../binutils-gdb/gdb/gdbserver/../../include -I../../../binutils-gdb/gdb/gdbserver/../gnulib/import -Ibuild-gnulib-gdbserver/import -Wall -Wpointer-arith -Wno-unused -Wunused-value -Wunused-function -Wno-switch -Wno-char-subscripts -Wempty-body -Wpointer-sign -Wmissing-prototypes -Wdeclaration-after-statement -Wmissing-parameter-type -Wold-style-declaration -Wold-style-definition -Wformat-nonliteral -Wno-missing-prototypes -Werror -DGDBSERVER -c -o hostio.o -MT hostio.o -MMD -MP -MF .deps/hostio.Tpo ../../../binutils-gdb/gdb/gdbserver/hostio.c ../../../binutils-gdb/gdb/gdbserver/mem-break.c: In function find_gdb_breakpoint: ../../../binutils-gdb/gdb/gdbserver/mem-break.c:996:15: error: gdb_breakpoint undeclared (first use in this function) return (gdb_breakpoint *) bp; we should use 'struct gdb_breakpoint' rather than 'gdb_breakpoint'. Patch below fixes this. gdb/gdbserver: 2016-07-21 Yao Qi <yao.qi@linaro.org> * mem-break.c (find_gdb_breakpoint): Cast bp to 'struct gdb_breakpoint *' rather than 'gdb_breakpoint *'.
2016-07-21Support vCont s and S actions with software single stepYao Qi2-5/+13
GDBserver with software single step should be able to claim supporting vCont s and S actions, so that GDB knows the remote target can do single step. It doesn't matter to GDB that the single step in the remote target is done via hardware or software. gdb/gdbserver: 2016-07-21 Yao Qi <yao.qi@linaro.org> * server.c (handle_v_requests): Support s and S actions if target_supports_software_single_step return true.
2016-07-21Use reinsert_breakpoint for vCont;sYao Qi2-8/+83
This patch is to teach GDBserver using software single step to handle vCont;s. Simply speaking, if the thread's resume request is resume_step, install reinsert breakpoint at the next pcs when GDBserver is about to resume threads. These reinsert breakpoints of a thread are removed, when GDBserver gets an event from that thread and reports it back to GDB. gdb/gdbserver: 2016-07-21 Yao Qi <yao.qi@linaro.org> * linux-low.c (resume_stopped_resumed_lwps): If resume request is resume_step, call maybe_hw_step. (linux_wait_1): Stop all threads, remove reinsert breakpoints, and unstop them. (linux_resume_one_lwp_throw): Don't assert the thread has reinsert breakpoints or not. (proceed_one_lwp): If resume request is resume_step, install reinsert breakpoints and call maybe_hw_step.
2016-07-21Enqueue signal even when resuming threadsYao Qi2-21/+27
Nowadays, we only enqueue signal when we leave thread pending in linux_resume_one_thread. If lwp->resume->sig isn't zero (GDB wants to resume with signal), we pass lwp->resume->sig to linux_resume_one_lwp. In order to reduce the difference between resuming thread with signal and proceeding thread with signal, when we resume thread, we can enqueue signal too, and proceed thread. The signal will be consumed in linux_resume_one_lwp_throw from lwp->pending_signals. gdb/gdbserver: 2016-07-21 Yao Qi <yao.qi@linaro.org> * linux-low.c (proceed_one_lwp): Declare. (linux_resume_one_thread): Remove local variable 'step'. Lift code enqueue signal. Call proceed_one_lwp instead of linux_resume_one_lwp.
2016-07-21Use enqueue_pending_signal in linux_resume_one_threadYao Qi2-11/+14
gdb/gdbserver: 2016-07-21 Yao Qi <yao.qi@linaro.org> * linux-low.c (linux_resume_one_thread): Call enqueue_pending_signal.
2016-07-21Switch current_thread to lwp's thread in ↵Yao Qi4-2/+30
install_software_single_step_breakpoints install_software_single_step_breakpoints has parameter lwp, but still need to switch to current_thread. In order to simplify its caller, we do the current_thread save/restore inside install_software_single_step_breakpoints. gdb/gdbserver: 2016-07-21 Yao Qi <yao.qi@linaro.org> * gdbthread.h (make_cleanup_restore_current_thread): Declare. * inferiors.c (do_restore_current_thread_cleanup): New function. (make_cleanup_restore_current_thread): Likewise. * linux-low.c (install_software_single_step_breakpoints): Call make_cleanup_restore_current_thread. Switch current_thread to thread.
2016-07-21Make reinsert_breakpoint thread specificYao Qi4-55/+92
This patch makes reinsert_breakpoint thread specific, which means we insert and remove reinsert_breakpoint breakpoints for a specific thread. This motivation of this change is that I'll use reinsert_breakpoint for vCont;s on software single step target, so that GDBserver may insert one reinsert_breakpoint for one thread doing step-over, and insert one reinsert_breakpoint for another thread doing vCont;s. After the operation of one thread is finished, GDBserver must remove reinsert_breakpoint for that thread only. On the other hand, reinsert_breakpoint is used for step-over nowadays. GDBserver inserts reinsert_breakpoint, and wait only from the thread doing step-over. After the step-over is done, GDBserver removes the reinsert_breakpoint. If there is still any threads need step-over, do the same again until all threads are finished step-over. In other words, reinsert_breakpoint is globally thread specific, but in an implicit way. It is natural to make it explicitly thread specific. gdb/gdbserver: 2016-07-21 Yao Qi <yao.qi@linaro.org> * mem-break.c (struct reinsert_breakpoint) <ptid>: New field. (set_reinsert_breakpoint): New parameter ptid. Callers updated. (clone_one_breakpoint): Likewise. (delete_reinsert_breakpoints): Change parameter to thread. Callers updated. (has_reinsert_breakpoints): Likewise. (uninsert_reinsert_breakpoints): Likewise. (reinsert_reinsert_breakpoints): Likewise. * mem-break.h (set_reinsert_breakpoint): Update declaration. (delete_reinsert_breakpoints): Likewise. (reinsert_reinsert_breakpoints): Likewise. (uninsert_reinsert_breakpoints): Likewise. (has_reinsert_breakpoints): Likewise.
2016-07-21Refactor clone_all_breakpointsYao Qi6-16/+24
This patch is to change the interface of clone_all_breakpoints, from lists of breakpoints and raw_breakpoints to child thread and parent thread. I choose child thread to pass because we need the ptid of the child thread in the following patch. gdb/gdbserver: 2016-07-21 Yao Qi <yao.qi@linaro.org> * inferiors.c (get_thread_process): Make parameter const. * inferiors.h (get_thread_process): Update declaration. * mem-break.c (clone_all_breakpoints): Remove all parameters. Add new parameters child_thread and parent_thread. Callers updated. * mem-break.h (clone_all_breakpoints): Update declaration.
2016-07-21Create sub classes of 'struct breakpoint'Yao Qi4-67/+188
Nowadays, there are three types of breakpoint in GDBserver, - gdb breakpoints, - reinsert breakpoints, used for software single step, - other breakpoints, used for tracepoint, but we only have one 'struct breakpoint' for all of them. Some fields are only useful to one type of breakpoint. For example, cond_list and command_list are only used by gdb breakpoints, while handler is only used by other breakpoints. This patch changes 'struct breakpoint' to a base class, which has fields needed by all breakpoint types, also add three sub-classes to 'struct breakpoint' to these three types of breakpoints. gdb/gdbserver: 2016-07-21 Yao Qi <yao.qi@linaro.org> * mem-break.c (struct breakpoint) <cond_list>: Remove. <command_list, handler>: Remove. (struct gdb_breakpoint): New. (struct other_breakpoint): New. (struct reinsert_breakpoint): New. (is_gdb_breakpoint): New function. (any_persistent_commands): Update command_list if is_gdb_breakpoint returns true. (set_breakpoint): Create breakpoints according to their types. (find_gdb_breakpoint): Return 'struct gdb_breakpoint *'. (set_gdb_breakpoint_1): Likewise. (set_gdb_breakpoint): Likewise. (clear_breakpoint_conditions): Change parameter type to 'struct gdb_breakpoint *'. (clear_breakpoint_commands): Likewise. (clear_breakpoint_conditions_and_commands): Likewise. (add_condition_to_breakpoint): Likewise. (add_breakpoint_condition): Likewise. (add_commands_to_breakpoint): Likewise. (check_breakpoints): Check other_breakpoint. (clone_one_breakpoint): Clone breakpopint according to its type. * mem-break.h (struct gdb_breakpoint): Declare. (set_gdb_breakpoint): Update declaration. (clear_breakpoint_conditions_and_commands): Likewise. (add_breakpoint_condition): Likewise. (add_breakpoint_commands): Likewise. * server.c (process_point_options): Change parameter type to 'struct gdb_breakpoint *'.
2016-07-21Pass breakpoint type in set_breakpoint_atYao Qi3-7/+24
Nowadays, set_breakpoint_at creates breakpoint of type other_breakpoint, but we also use set_breakpoint_at in set_reinsert_breakpoint to create breakpoint, so that we have to overwrite the breakpoint type like this, bp = set_breakpoint_at (stop_at, NULL); bp->type = reinsert_breakpoint; which looks not very good. This patch changes set_breakpoint_at to receive breakpoint type. Since set_breakpoint_at is used in many places, I rename it to set_breakpoint_type_at, and wrap it with set_breakpoint_at, and pass other_breakpoint. In this way, we can call set_breakpoint_type_at with reinsert_breakpoint in set_reinsert_breakpoint too, and code looks cleaner. gdb/gdbserver: 2016-07-21 Yao Qi <yao.qi@linaro.org> * mem-break.c (set_breakpoint_at): Rename it to ... (set_breakpoint_type_at): ... it. (set_breakpoint_at): Call set_breakpoint_type_at. (set_reinsert_breakpoint): Call set_breakpoint_type_at. * mem-break.h (set_breakpoint_at): Update comments.
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