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2014-09-18New "producer" attribute of python gdb.Symtab.Doug Evans7-1/+150
gdb/ChangeLog: * NEWS: Mention new "producer" attribute of gdb.Symtab. * python/py-symtab.c (stpy_get_producer): New function. (symtab_object_getset): Add "producer" attribute. gdb/doc/ChangeLog: * python.texi (Symbol Tables In Python): Document "producer" attribute of gdb.Symtab objects. gdb/testsuite/ChangeLog: * gdb.dwarf2/symtab-producer.exp: New file.
2014-09-18Fix regression for Linux vDSO in GDB (PR gdb/17407).Jan Kratochvil2-1/+6
since 5979d6b69b20a8355ea94b75fad97415fce4788c https://sourceware.org/git/?p=binutils-gdb.git;a=commitdiff;h=5979d6b69b20a8355ea94b75fad97415fce4788c vdso handling https://sourceware.org/ml/binutils/2014-03/msg00082.html https://sourceware.org/ml/binutils/2014-04/msg00003.html Message-ID: <A78C989F6D9628469189715575E55B230AA884EB@IRSMSX104.ger.corp.intel.com> I get on kernel-3.16.2-200.fc20.x86_64 https://koji.fedoraproject.org/koji/buildinfo?buildID=575860 attaching its vdso.bin.gz GDB (FSF HEAD 5e43d46791c4c66fd83947a12d4f716b561a9103) regression: reproducer: ./gdb -ex start ./gdb actual result / FAIL: Got object file from memory but can't read symbols: File truncated. expected result / PASS: <nothing> or / PASS: warning: Could not load shared library symbols for linux-vdso.so.1. Do you need "set solib-search-path" or "set sysroot"? That "warning: Could not load shared library..." is mostly harmless (it is a bug in GDB), in the FAIL case it is not printed just because bfd_check_format() fails there. It seems logical to me this way when the 'size' parameter has been already added. Alan Modra: I was wrongly thinking that the section headers were always last when I wrote that code. (They are now! If you relink that vdso with current binutils master you won't hit this problem, but that of course doesn't help existing kernels.) I do not see a regression for add-symbol-file-from-memory for libncurses.so.5 from the original thread above. Start of section headers: 1080 (bytes into file) Size of section headers: 64 (bytes) Number of section headers: 13 Section header string table index: 8 Section Headers: [Nr] Name Type Address Off Size ES Flg Lk Inf Al [ 8] .fake_shstrtab STRTAB 0000000000000780 000780 000076 00 A 0 0 32 Program Headers: Type Offset VirtAddr PhysAddr FileSiz MemSiz Flg Align LOAD 0x000000 0x0000000000000000 0x0000000000000000 0x0012fe 0x0012fe R E 0x1000 size == 0x2000 shdr_end == 0x778 == 1080 + 13 * 64 high_offset == 0x12fe else if (size >= shdr_end) - high_offset = shdr_end; + high_offset = size; But then 0x778 < 0x780 for "Section header string table index" so whole bfd_check_format() fails because section headers were not cleared here: /* If the segments visible in memory didn't include the section headers, then clear them from the file header. */ if (high_offset < shdr_end) bfd/ChangeLog 2014-09-18 Jan Kratochvil <jan.kratochvil@redhat.com> PR gdb/17407 * elfcode.h (bfd_from_remote_memory): Use SIZE for HIGH_OFFSET.
2014-09-18daily updateAlan Modra1-1/+1
2014-09-17Regenerate gold/Makefile.in.Cary Coutant1-0/+1
2014-09-17Fix handling of common symbols with plugins.Rafael Ávila de Espíndola3-4/+11
gold/ChangeLog: 2014-09-17 Rafael Ávila de Espíndola <rafael.espindola@gmail.com> * plugin.cc (Sized_pluginobj::do_add_symbols): Ignore isym->size. * resolve.cc (Symbol_table::resolve): Don't override common symbols during the replacement phase.
2014-09-17Add tls support to gold aarch64 backend.Jing Yu5-134/+1579
elfcpp/ChangeLog: 2014-09-17 Han Shen <shenhan@google.com> * aarch64.h (R_AARCH64_TLS_DTPREL64): Switch enum value with ... (R_AARCH64_TLS_DTPMOD64): ... enum value. gold/ChangeLog: 2014-09-17 Han Shen <shenhan@google.com> Jing Yu <jingyu@google.com> * aarch64-reloc.def: Add TLSGD_ADR_PAGE21, TLSGD_ADD_LO12_NC, TLSDESC_ADR_PAGE21, TLSDESC_LD64_LO12, TLSDESC_ADD_LO12, TLSDESC_CALL. * aarch64.cc (Target_aarch64): Add data members got_irelative_, got_tlsdesc_, rela_irelative_, got_mod_index_offset_, tlsdesc_reloc_info_, tls_base_symbol_defined_. Initialize them in constructor. (Target_aarch64::do_reloc_symbol_index): New method. (Target_aarch64::do_reloc_addend): New method. (Target_aarch64::add_tlsdesc_info): New method. (Target_aarch64::do_dynsym_value): New method. (Target_aarch64::do_make_data_plt): Add new parameters: got, got_irelative. Pass them to Output_data_plt_aarch64_standard. (Target_aarch64::make_data_plt): Add new parameters: got, got_irelative. Pass them to do_make_data_plt. (Target_aarch64::Relocate): Add skip_call_tls_get_addr_ variable. (Target_aarch64::Relocate:tls_gd_to_le): New method. (Target_aarch64::Relocate:tls_ie_to_le): New method. (Target_aarch64::Relocate:tls_desc_gd_to_le): New method. (Target_aarch64::Relocate:tls_desc_gd_to_ie): New method. (Target_aarch64::got_tlsdesc_section): New method. (Target_aarch64::make_local_ifunc_plt_entry): New method. (Target_aarch64::define_tls_base_symbol): New method. (Target_aarch64::reserve_tlsdesc_entries): New method. (Target_aarch64::got_mod_index_entry): New method. (Target_aarch64::rela_tlsdesc_section): New method. (Target_aarch64::rela_irelative_section): New method. (Target_aarch64::Tlsdesc_info): New struct. (Target_aarch64::got_section): Create .got.plt space for IRELATIVE relocations and tlsdesc relocations. (Target_aarch64::optimize_tls_reloc): Implement method. (Output_data_plt_aarch64): Add member variables: tlsdesc_rel_, got_, got_irelative_, irelative_count_, tlsdesc_got_offset_. Initialize them in constructor. (Output_data_plt_aarch64::reserve_tlsdesc_entry): New method. (Output_data_plt_aarch64::has_tlsdesc_entry): New method. (Output_data_plt_aarch64::get_tlsdesc_got_offset): New method. (Output_data_plt_aarch64::get_tlsdesc_plt_offset): New method. (Output_data_plt_aarch64::rela_tlsdesc): New method. (Output_data_plt_aarch64::rela_irelative): New method. (Output_data_plt_aarch64::entry_count): Count IRELATIVE relocations. (Output_data_plt_aarch64::first_plt_entry_offset): Add const attribute. (Output_data_plt_aarch64::get_plt_tlsdesc_entry_size): New method. (Output_data_plt_aarch64::fill_tlsdesc_entry): New method. (Output_data_plt_aarch64::do_get_plt_tlsdesc_entry_size): New method. (Output_data_plt_aarch64::do_fill_tlsdesc_entry): New method. (Output_data_plt_aarch64_standard): New member variables: plt_tlsdesc_entry_size, tlsdesc_plt_entry. (Output_data_plt_aarch64_standard::Output_data_plt_aarch64_standard): New parameter: got, got_irelative. (Output_data_plt_aarch64_standard::do_get_plt_entry_size): New method. (Output_data_plt_aarch64_standard::do_fill_tlsdesc_entry): New method. (Output_data_plt_aarch64::do_write): Replace got_address with gotplt_address. Add irelative_count_ to count. Write tlsdesc entry. (AArch64_relocate_functions::update_movnz): New method. (AArch64_relocate_functions): Correct format. (AArch64_relocate_functions::movnz): New method. (Target_aarch64::Scan::local): Correct format. Move r_sym, got to before the switch. Add new cases to switch. Check ie_to_le relaxation on tlsie relocations. Add code handling tlsgd tlsdesc cases. (Target_aarch64::Scan::global): Move arp to front. Do copy_reloc when needed. Add new cases to switch. Insert dynamic RELATIVE relocation when needed. Add code handling tlsgd, tlsie, tlsdesc cases. Call reloc_name_in_error_message to print unsupported reloc. (Target_aarch64::make_plt_section): Pass got_ and got_irelative_ to make_data_plt. (Target_aarch64::do_finalize_sections): Emit relocs to save COPY relocs. Fill in some more dynamic tags. (Target_aarch64::Relocate::relocate): Handle tlsgd, tlsdesc relocs. Skip call tls_get_addr when tlsgd is relaxed. (Target_aarch64::Relocate::relocate_tls): Correct format. Add code handling tlsgd, tlsdesc relocs, and tls gd->le, ie->le, tlsdesc->le, tlsdesc->ie relaxation.
2014-09-17PR gdb/17384: Do not print memory errors in safe_read_memory_integerUlrich Weigand2-45/+13
If accessing memory via safe_read_memory_integer fails, that function used to print an error message even though callers were perfectly able to handle (and even expected!) failures. This patch removes the confusing message by changing the routine to directly use target_read_memory. gdb/ChangeLog: PR gdb/17384 * corefile.c (struct captured_read_memory_integer_arguments): Remove. (do_captured_read_memory_integer): Remove. (safe_read_memory_integer): Use target_read_memory directly instead of catching errors in do_captured_read_memory_integer.
2014-09-17Fix arm-elf build failure on non-C99 systems (was using int64_t)Tristan Gingold2-2/+7
gas/ * config/tc-arm.c (move_or_literal_pool, add_to_lit_pool): Use bfd_int64_t instead of int64_t.
2014-09-16Add test for global variable that is nested by another DSOSergio Durigan Junior5-0/+134
This is just a testcase addition that I am proposing for upstream GDB. We have this in our internal tree, and the related RH bug is: <https://bugzilla.redhat.com/show_bug.cgi?id=809179> (You might not be able to see all the comments without privileges.) This bug is about a global variable that got incorrectly displayed by GDB. This bug has already been fixed a long time ago by Joel's commit: commit 19630284f570790ebf6d50bfb43caa1f125ee88a Author: Joel Brobecker <brobecker@gnat.com> Date: Tue Jun 5 13:50:50 2012 +0000 But I think a testcase for it wouldn't hurt. So, consider the following scenario: $ cat solib1.c int test; void c_main (void) { test = 42; } $ cat solib2.c int test; void b_main (void) { test = 42; } $ cat main.c int main (int argc, char *argv[]) { c_main (); b_main (); return 0; } $ gcc -g -fPIC -shared -o libSO1.so -c solib1.c $ gcc -g -fPIC -shared -o libSO2.so -c solib2.c $ gcc -g -o main -L$PWD -lSO1 -lSO2 main.c $ LD_LIBRARY_PATH=. gdb -q -batch -ex 'b c_main' -ex r -ex n -ex 'p test' ./main ... $1 = 0 This happened with GDB before Joel's commit above. Now, things work and GDB is able to correctly display the nested global variable: $ LD_LIBRARY_PATH=. gdb -q -batch -ex 'b c_main' -ex r -ex n -ex 'p test' ./main ... $1 = 42 The testcase attached tests this behavior. gdb/testsuite/ChangeLog: 2014-09-16 Sergio Durigan Junior <sergiodj@redhat.com> * gdb.base/global-var-nested-by-dso-solib1.c: New file. * gdb.base/global-var-nested-by-dso-solib2.c: Likewise. * gdb.base/global-var-nested-by-dso.c: Likewise. * gdb.base/global-var-nested-by-dso.exp: Likewise.
2014-09-17daily updateAlan Modra1-1/+1
2014-09-16CONTRIBUTE: For internals refer to wiki, not gdb/docMaciej W. Rozycki2-3/+9
2014-09-16Fix CPPFLAGS handling in gdbserver's build.Joel Brobecker2-2/+9
In gdb/gdbserver/Makefile.in, IPAGENT_CFLAGS is defined using an expression which references $(CPPFLAGS). But CPPFLAGS isn't actually defined. This patch first adds a CPPFLAGS definition, so as to inherit the value passed at configure time (if any). And it then makes it part of INTERNAL_CFLAGS_BASE, instead. There is no reason that CPPFLAGS be useful for a certain class of source files, and not the rest. This is also consistent with what's done in GDB. gdb/gdbserver/ChangeLog: * Makefile.in (CPPFLAGS): Define. (INTERNAL_CFLAGS_BASE): Add ${CPPFLAGS}. (IPAGENT_CFLAGS): Remove ${CPPFLAGS}. Tested by rebuilding GDBserver with a dummy CPPFLAGS, and verifying that the compilation command was altered as expected.
2014-09-16Remove dead code from objc-lang.c (spurious "fprintf (stderr...")Sergio Durigan Junior2-5/+4
This obvious change removes dead code from objc-lang.c. I was grepping for "fprintf (stderr..." and found this code between "#if 0".."#endif" blocks. 2014-09-16 Sergio Durigan Junior <sergiodj@redhat.com> * objc-lang.c (find_implementation_from_class): Remove dead code.
2014-09-16Replace "fprintf (stderr..." by "fprintf_unfiltered (gdb_stdlog..."Sergio Durigan Junior2-11/+21
This is an obvious replacement of "fprintf (stderr..." by "fprintf_unfiltered (gdb_stdlog...", which is the standard to use in these cases. gdb/ChangeLog: 2014-09-16 Sergio Durigan Junior <sergiodj@redhat.com> PR cli/7233 * linux-nat.c (linux_nat_wait_1): Replace "fprintf (stderr..." by "fprintf_unfiltered (gdb_stdlog...)".
2014-09-16gdb.base/watch-bitfields.exp: Improve testSergio Durigan Junior2-26/+62
Make test messages unique and a couple other tweaks. gdb/testsuite/ 2014-09-16 Sergio Durigan Junior <sergiodj@redhat.com> Pedro Alves <palves@redhat.com> * gdb.base/watch-bitfields.exp: Pass string other than test file name to prepare_for_testing. (watch): New procedure. (expect_watchpoint): Use with_test_prefix. (top level): Factor out tests to ... (test_watch_location, test_regular_watch): ... these new procedures, and use with_test_prefix and gdb_continue_to_end.
2014-09-16Fix PR12526: -location watchpoints for bitfield argumentsPatrick Palka8-2/+214
PR 12526 reports that -location watchpoints against bitfield arguments trigger false positives when bits around the bitfield, but not the bitfield itself, are modified. This happens because -location watchpoints naturally operate at the byte level, not at the bit level. When the address of a bitfield lvalue is taken, information about the bitfield (i.e. its offset and size) is lost in the process. This information must first be retained throughout the lifetime of the -location watchpoint. This patch achieves this by adding two new fields to the watchpoint struct: val_bitpos and val_bitsize. These fields are set when a watchpoint is first defined in watch_command_1. They are both equal to zero if the watchpoint is not a -location watchpoint or if the argument is not a bitfield. Then these bitfield parameters are used inside update_watchpoint and watchpoint_check to extract the actual value of the bitfield from the watchpoint address, with the help of a local helper function extract_bitfield_from_watchpoint_value. Finally when creating a HW breakpoint pointing to a bitfield, we optimize the address and length of the breakpoint. By skipping over the bytes that don't cover the bitfield, this step reduces the frequency at which a read watchpoint for the bitfield is triggered. It also reduces the number of times a false-positive call to check_watchpoint is triggered for a write watchpoint. gdb/ PR breakpoints/12526 * breakpoint.h (struct watchpoint): New fields val_bitpos and val_bitsize. * breakpoint.c (watch_command_1): Use these fields to retain bitfield information. (extract_bitfield_from_watchpoint_value): New function. (watchpoint_check): Use it. (update_watchpoint): Use it. Optimize the address and length of a HW watchpoint pointing to a bitfield. * value.h (unpack_value_bitfield): New prototype. * value.c (unpack_value_bitfield): Make extern. gdb/testsuite/ PR breakpoints/12526 * gdb.base/watch-bitfields.exp: New file. * gdb.base/watch-bitfields.c: New file.
2014-09-16Add -mevexrcig={rne|rd|ru|rz} option to x86 assembler.Ilya Tocar59-1/+7718
It is used to control which value is encoded in rounding control bits for SAE-only EVEX instructions. gas/ * config/tc-i386.c (evexrcig): New. (build_evex_prefix): Force rounding bits. (OPTION_MEVEXRCIG): New. (md_longopts): Add mevexrcig. (md_parse_option): Handle OPTION_MEVEXRCIG. (md_show_usage): Document mevexrcig. * doc/c-i386.texi (mevexrcig): Document new option. gas/testsuite/ * gas/i386/avx512dq-rcig.s: New. * gas/i386/avx512dq-rcigrd-intel.d: Likewise. * gas/i386/avx512dq-rcigrd.d: Likewise. * gas/i386/avx512dq-rcigrne-intel.d: Likewise. * gas/i386/avx512dq-rcigrne.d: Likewise. * gas/i386/avx512dq-rcigru-intel.d: Likewise. * gas/i386/avx512dq-rcigru.d: Likewise. * gas/i386/avx512dq-rcigrz-intel.d: Likewise. * gas/i386/avx512dq-rcigrz.d: Likewise. * gas/i386/avx512er-rcig.s: Likewise. * gas/i386/avx512er-rcigrd-intel.d: Likewise. * gas/i386/avx512er-rcigrd.d: Likewise. * gas/i386/avx512er-rcigrne-intel.d: Likewise. * gas/i386/avx512er-rcigrne.d: Likewise. * gas/i386/avx512er-rcigru-intel.d: Likewise. * gas/i386/avx512er-rcigru.d: Likewise. * gas/i386/avx512er-rcigrz-intel.d: Likewise. * gas/i386/avx512er-rcigrz.d: Likewise. * gas/i386/avx512f-rcig.s: Likewise. * gas/i386/avx512f-rcigrd-intel.d: Likewise. * gas/i386/avx512f-rcigrd.d: Likewise. * gas/i386/avx512f-rcigrne-intel.d: Likewise. * gas/i386/avx512f-rcigrne.d: Likewise. * gas/i386/avx512f-rcigru-intel.d: Likewise. * gas/i386/avx512f-rcigru.d: Likewise. * gas/i386/avx512f-rcigrz-intel.d: Likewise. * gas/i386/avx512f-rcigrz.d: Likewise. * gas/i386/x86-64-avx512dq-rcig.s: Likewise. * gas/i386/x86-64-avx512dq-rcigrd-intel.d: Likewise. * gas/i386/x86-64-avx512dq-rcigrd.d: Likewise. * gas/i386/x86-64-avx512dq-rcigrne-intel.d: Likewise. * gas/i386/x86-64-avx512dq-rcigrne.d: Likewise. * gas/i386/x86-64-avx512dq-rcigru-intel.d: Likewise. * gas/i386/x86-64-avx512dq-rcigru.d: Likewise. * gas/i386/x86-64-avx512dq-rcigrz-intel.d: Likewise. * gas/i386/x86-64-avx512dq-rcigrz.d: Likewise. * gas/i386/x86-64-avx512er-rcig.s: Likewise. * gas/i386/x86-64-avx512er-rcigrd-intel.d: Likewise. * gas/i386/x86-64-avx512er-rcigrd.d: Likewise. * gas/i386/x86-64-avx512er-rcigrne-intel.d: Likewise. * gas/i386/x86-64-avx512er-rcigrne.d: Likewise. * gas/i386/x86-64-avx512er-rcigru-intel.d: Likewise. * gas/i386/x86-64-avx512er-rcigru.d: Likewise. * gas/i386/x86-64-avx512er-rcigrz-intel.d: Likewise. * gas/i386/x86-64-avx512er-rcigrz.d: Likewise. * gas/i386/x86-64-avx512f-rcig.s: Likewise. * gas/i386/x86-64-avx512f-rcigrd-intel.d: Likewise. * gas/i386/x86-64-avx512f-rcigrd.d: Likewise. * gas/i386/x86-64-avx512f-rcigrne-intel.d: Likewise. * gas/i386/x86-64-avx512f-rcigrne.d: Likewise. * gas/i386/x86-64-avx512f-rcigru-intel.d: Likewise. * gas/i386/x86-64-avx512f-rcigru.d: Likewise. * gas/i386/x86-64-avx512f-rcigrz-intel.d: Likewise. * gas/i386/x86-64-avx512f-rcigrz.d: Likewise. * gas/i386/i386.exp: Run new tests.
2014-09-16Remove documention of dead "target vxworks"Pedro Alves2-170/+10
"target vxworks" and friends have been removed 10 years ago already: commit e84ecc995d6a5e4e9114d3cea61717b8a573afb6 Author: Andrew Cagney <cagney@redhat.com> AuthorDate: Sat Nov 13 23:10:02 2004 +0000 2004-11-13 Andrew Cagney <cagney@gnu.org> * configure.tgt: Delete i[34567]86-*-vxworks*, m68*-netx-*, m68*-*-vxworks*, mips*-*-vxworks*, powerpc-*-vxworks*, and sparc-*-vxworks*. * NEWS: Mention that vxworks was deleted. (...) * remote-vxmips.c, remote-vx.c: Delete. * remote-vx68.c: Delete. (...) This removes related leftover cruft from the manual. gdb/doc/ 2014-09-16 Pedro Alves <palves@redhat.com> * gdb.texinfo (Starting) <run command>: Don't mention VxWorks. (Embedded OS): Remove VxWorks menu entry. (VxWorks): Remove node.
2014-09-16Rename current_inferior as current_thread in gdbserverGary Benson28-245/+277
GDB has a function named "current_inferior" and gdbserver has a global variable named "current_inferior", but the two are not equivalent; indeed, gdbserver does not have any real equivalent of what GDB calls an inferior. What gdbserver's "current_inferior" is actually pointing to is a structure describing the current thread. This commit renames current_inferior as current_thread in gdbserver to clarify this. It also renames the function "set_desired_inferior" to "set_desired_thread" and renames various local variables from foo_inferior to foo_thread. gdb/gdbserver/ChangeLog: * inferiors.h (current_inferior): Renamed as... (current_thread): New variable. All uses updated. * linux-low.c (get_pc): Renamed saved_inferior as saved_thread. (maybe_move_out_of_jump_pad): Likewise. (cancel_breakpoint): Likewise. (linux_low_filter_event): Likewise. (wait_for_sigstop): Likewise. (linux_resume_one_lwp): Likewise. (need_step_over_p): Likewise. (start_step_over): Likewise. (linux_stabilize_threads): Renamed save_inferior as saved_thread. * linux-x86-low.c (x86_linux_update_xmltarget): Likewise. * proc-service.c (ps_lgetregs): Renamed reg_inferior as reg_thread and save_inferior as saved_thread. * regcache.c (get_thread_regcache): Renamed saved_inferior as saved_thread. (regcache_invalidate_thread): Likewise. * remote-utils.c (prepare_resume_reply): Likewise. * thread-db.c (thread_db_get_tls_address): Likewise. (disable_thread_event_reporting): Likewise. (remove_thread_event_breakpoints): Likewise. * tracepoint.c (gdb_agent_about_to_close): Renamed save_inferior as saved_thread. * target.h (set_desired_inferior): Renamed as... (set_desired_thread): New declaration. All uses updated. * server.c (myresume): Updated comment to reference thread instead of inferior. (handle_serial_event): Likewise. (handle_target_event): Likewise.
2014-09-16Fix watchpoint-stops-at-right-insn.expPedro Alves2-1/+7
Silly typo... gdb/testsuite/ 2014-09-16 Pedro Alves <palves@redhat.com> * gdb.base/watchpoint-stops-at-right-insn.exp (test): Compare software and hardware addresses, not software address against itself.
2014-09-16Add test to make sure GDB knows which "kind" of watchpoint the target hasPedro Alves3-0/+215
This adds a test that makes sure GDB knows whether the target has continuable, or non-continuable watchpoints. That is, the test confirms that GDB presents a watchpoint value change at the first instruction right after the instruction that changes memory. gdb/testsuite/ChangeLog: 2014-09-16 Pedro Alves <palves@redhat.com> * gdb.base/watchpoint-stops-at-right-insn.c: New file. * gdb.base/watchpoint-stops-at-right-insn.exp: New file.
2014-09-16Add hardware watchpoint support for x86 GNU Hurd.Samuel Thibault6-1/+188
gdb/ * config/i386/i386gnu.mh (NATDEPFILES): Add x86-nat.o and x86-dregs.o. * gnu-nat.c (inf_threads): New function. * gnu-nat.h (inf_threads_ftype): New typedef. (inf_threads): New declaration. * i386gnu-nat.c: Include "x86-nat.h" and "inf-child.h". [i386_DEBUG_STATE] (i386_gnu_dr_get, i386_gnu_dr_set) (i386_gnu_dr_set_control_one, i386_gnu_dr_set_control) (i386_gnu_dr_set_addr_one, i386_gnu_dr_set_addr) (i386_gnu_dr_get_reg, i386_gnu_dr_get_addr, 386_gnu_dr_get_status) (i386_gnu_dr_get_control): New functions. (reg_addr): New structure. (_initialize_i386gnu_nat) [i386_DEBUG_STATE]: Initialize hardware i386 debugging register hooks. * NEWS: Mention this.
2014-09-16Make the linker return an error status if it fails to merge ARM binaries withTerry Guo9-10/+68
different architecture tags. Add a test case to make sure that this works, and update readelf so that it will not seg-fault when trying to display the attributes of binaries with invalid architecture tags. * elf32-arm.c (elf32_arm_merge_eabi_attributes): Return false if failed to merge. * ld-arm/attr-merge-arch-2.d: New test case. * ld-arm/attr-merge-arch-2a.s: New test case source file. * ld-arm/attr-merge-arch-2b.s: Likewise. * ld-arm/arm-elf.exp: Run new test case. * readelf.c (display_arm_attribute): Use unsigned int type for tag, val and type variables.
2014-09-16Remove support for testing against dead "target vxworks"Pedro Alves15-492/+54
"target vxworks" and friends have been removed 10 years ago already: commit e84ecc995d6a5e4e9114d3cea61717b8a573afb6 Author: Andrew Cagney <cagney@redhat.com> AuthorDate: Sat Nov 13 23:10:02 2004 +0000 2004-11-13 Andrew Cagney <cagney@gnu.org> * configure.tgt: Delete i[34567]86-*-vxworks*, m68*-netx-*, m68*-*-vxworks*, mips*-*-vxworks*, powerpc-*-vxworks*, and sparc-*-vxworks*. * NEWS: Mention that vxworks was deleted. (...) * remote-vxmips.c, remote-vx.c: Delete. * remote-vx68.c: Delete. (...) This removes related leftover cruft from the testsuite. Tested on x86_64 Fedora 20, native and gdbserver. gdb/testsuite/ 2014-09-16 Pedro Alves <palves@redhat.com> * config/vx.exp, config/vxworks.exp, config/vxworks29k.exp: Delete files. * gdb.base/a2-run.exp: Remove all code guarded by istarget "*-*-vxworks*" throughout. * gdb.base/break.exp: Likewise. * gdb.base/default.exp: Likewise. * gdb.base/scope.exp: Likewise. * gdb.base/sepdebug.exp: Likewise. * gdb.base/break.c: Remove all code guarded by #ifdef vxworks throughout. * gdb.base/run.c: Likewise. * gdb.base/sepdebug.c: Likewise. * gdb.hp/gdb.aCC/run.c: Likewise. * gdb.reverse/until-reverse.c: Likewise. * lib/gdb.exp (gdb_compile): Remove is_vxworks branch.
2014-09-16Another board file for remote hostYao Qi2-0/+89
In the recent review to my patch about copying files to remote host, we find that we need a board file which is more closely mapped real remote host testing to improve coverage. With the board file local-remote-host-native.exp, DejaGNU copies files to $build/gdb/testsuite/remote-host to emulate the effect of remote host. Is it OK? gdb/testsuite: 2014-09-16 Yao Qi <yao@codesourcery.com> * boards/local-remote-host-native.exp: New file.
2014-09-16NDS32: Code refactoring of relaxation.Kuan-Lin Chen13-4082/+6322
Refactor each relaxation pattern to raise the maintainability. In origin, all patterns is analysed in nds32_elf_relax_section, so it is hard to debug and maintain. Therefore, we classify all patterns into different functions in this patch. Moreover, we adjust all optimizations into nds32_elf_relax_section to take these optimizations in turn. This can promise all relaxation being done after calling gld${EMULATION_NAME}_after_allocation.
2014-09-16NDS32/opcodes: Add audio ISA extension and modify the disassemble implemnt.Kuan-Lin Chen8-1847/+2344
First, add nds32 audio ISA extension including opcodes and registers. Second, redesign the disassemble implement. The original disassemble decode instruction opcode using switch-case. It is hard to synchronize when adding new instructions. Therefore, the new implement reuses nds32_opcodes to dump the instructions.
2014-09-16daily updateAlan Modra1-1/+1
2014-09-16Implement support for recording vector data transfer instructionsOmair Javaid2-1/+103
gdb: 2014-08-13 Omair Javaid <omair.javaid@linaro.org> * arm-tdep.c (arm_record_vdata_transfer_insn): Added record handler for vector data transfer instructions. (arm_record_coproc_data_proc): Updated.
2014-09-16Implement support for recording extension register ld/st insnOmair Javaid2-2/+183
gdb: 2014-08-13 Omair Javaid <omair.javaid@linaro.org> * arm-tdep.c (arm_record_asimd_vfp_coproc): Replace stub handler with arm_record_exreg_ld_st_insn. (arm_record_exreg_ld_st_insn): Add record handler for ex-register load/store insns.
2014-09-16Implement support for recording VFP data processing instructionsOmair Javaid2-1/+218
gdb: 2014-08-13 Omair Javaid <omair.javaid@linaro.org> * arm-tdep.c (arm_record_coproc_data_proc): Updated. (arm_record_vfp_data_proc_insn): Added record handler for VFP data processing instructions.
2014-09-16Implement support for recording thumb2 ASIMD struct ld/st insnsOmair Javaid2-1/+197
gdb: 2014-08-13 Omair Javaid <omair.javaid@linaro.org> * arm-tdep.c (thumb2_record_asimd_struct_ld_st): Add record handler for advance SIMD struct ld/st insn. (thumb2_record_decode_insn_handler): Replace stub handler with thumb2_record_asimd_struct_ld_st.
2014-09-16Implement support for recording arm/thumb mode coprocessor instructionsOmair Javaid2-10/+122
gdb: 2014-08-13 Omair Javaid <omair.javaid@linaro.org> * arm-tdep.c (arm_record_coproc_data_proc): Add record handler stubs for asimd, vfp and coprocessor insns. (arm_record_asimd_vfp_coproc): Add record handler for asimd, vfp and coprocessor insns. (thumb2_record_coproc_insn): New function. (thumb2_record_decode_insn_handler): Update coprocessor insns record handlers. (decode_insn): Install arm_record_asimd_vfp_coproc as handler for opcode 110 insns.
2014-09-15Rename OPTION_omit_lock_prefix to OPTION_OMIT_LOCK_PREFIXH.J. Lu2-3/+10
* config/tc-i386.c (OPTION_omit_lock_prefix): Renamed to ... (OPTION_OMIT_LOCK_PREFIX): This. (md_longopts): Updated. (md_parse_option): Likewise.
2014-09-15This fixes a typo in a previous commit.Chen Gang2-1/+7
(find_abstract_instance_name): Use 'form' instead of 'name' for the typo issue, which related with commit 60d77146a249ae9b51d7ce98930cdbedb2cfa352.
2014-09-15Add support for MIPS R6.Andrew Bennett107-479/+8476
bfd/ * aoutx.h (NAME (aout, machine_type)): Add mips32r6 and mips64r6. * archures.c (bfd_architecture): Likewise. * bfd-in2.h (bfd_architecture): Likewise. (bfd_reloc_code_real): Add relocs BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3 and BFD_RELOC_MIPS_19_PCREL_S2. * cpu-mips.c (arch_info_struct): Add mips32r6 and mips64r6. * elf32-mips.c: Define relocs R_MIPS_PC21_S2, R_MIPS_PC26_S2 R_MIPS_PC18_S3, R_MIPS_PC19_S2, R_MIPS_PCHI16 and R_MIPS_PCLO16. (mips_reloc_map): Add entries for BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3, BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and BFD_RELOC_LO16_PCREL. * elf64-mips.c: Define REL, and RELA relocations R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3, R_MIPS_PC19_S2, R_MIPS_PCHI16 and R_MIPS_PCLO16. (mips_reloc_map): Add entries for BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3, BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and BFD_RELOC_LO16_PCREL. * elfn32-mips.c: Likewise. * elfxx-mips.c (MIPSR6_P): New define. (mipsr6_exec_plt_entry): New array. (hi16_reloc_p): Add support for R_MIPS_PCHI16. (lo16_reloc_p): Add support for R_MIPS_PCLO16. (aligned_pcrel_reloc_p): New function. (mips_elf_relocation_needs_la25_stub): Add support for relocs: R_MIPS_PC21_S2 and R_MIPS_PC26_S2. (mips_elf_calculate_relocation): Add support for relocs: R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3, R_MIPS_PC19_S2, R_MIPS_PCHI16 and R_MIPS_PCLO16. (_bfd_elf_mips_mach): Add support for mips32r6 and mips64r6. (mips_elf_add_lo16_rel_addend): Add support for R_MIPS_PCHI16. (_bfd_mips_elf_check_relocs): Add support for relocs: R_MIPS_PC21_S2 and R_MIPS_PC26_S2. (_bfd_mips_elf_relocate_section): Add a check for unaligned pc relative relocs. (_bfd_mips_elf_finish_dynamic_symbol): Add support for MIPS r6 plt entry. (mips_set_isa_flags): Add support for mips32r6 and mips64r6. (_bfd_mips_elf_print_private_bfd_data): Likewise. (mips_32bit_flags_p): Add support for mips32r6. * libbfd.h (bfd_reloc_code_real_names): Add entries for BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3 and BFD_RELOC_MIPS_19_PCREL_S2. * reloc.c: Document relocs BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3 and BFD_RELOC_MIPS_19_PCREL_S2. binutils/ * readelf.c (get_machine_flags): Add support for mips32r6 and mips64r6. elfcpp/ * mips.h (E_MIPS_ARCH_32R6, E_MIPS_ARCH_64R6): New enum constants. gas/ * config/tc-mips.c (mips_nan2008): New static global. (mips_flag_nan2008): Removed. (LL_SC_FMT): New define. (COP12_FMT): Updated. (ISA_IS_R6): New define. (ISA_HAS_64BIT_REGS): Add mips64r6. (ISA_HAS_DROR): Likewise. (ISA_HAS_64BIT_FPRS): Add mips32r6 and mips64r6. (ISA_HAS_ROR): Likewise. (ISA_HAS_ODD_SINGLE_FPR): Likewise. (ISA_HAS_MXHC1): Likewise. (hilo_interlocks): Likewise. (md_longopts): Likewise. (ISA_HAS_LEGACY_NAN): New define. (options): Add OPTION_MIPS32R6 and OPTION_MIPS64R6. (mips_ase): Add field rem_rev. (mips_ases): Updated to add which ISA an ASE was removed in. (mips_isa_rev): Add support for mips32r6 and mips64r6. (mips_check_isa_supports_ase): Add support to check if an ASE has been removed in the specified MIPS ISA revision. (validate_mips_insn): Skip '-' character. (macro_build): Likewise. (mips_check_options): Prevent R6 working with fp32, mips16, micromips, or branch relaxation. (file_mips_check_options): Set R6 floating point registers to 64 bit. Also deal with the nan2008 option. (limited_pcrel_reloc_p): Add relocs: BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3, BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and BFD_RELOC_LO16_PCREL. (operand_reg_mask): Add support for OP_SAME_RS_RT, OP_CHECK_PREV and OP_NON_ZERO_REG. (match_check_prev_operand): New static function. (match_same_rs_rt_operand): New static function. (match_non_zero_reg_operand): New static function. (match_operand): Added entries for: OP_SAME_RS_RT, OP_CHECK_PREV and OP_NON_ZERO_REG. (insns_between): Added case to deal with forbidden slots. (append_insn): Added support for relocs: BFD_RELOC_MIPS_21_PCREL_S2 and BFD_RELOC_MIPS_26_PCREL_S2. (match_insn): Add support for operands -A, -B, +' and +". Also skip '-' character. (mips_percent_op): Add entries for %pcrel_hi and %pcrel_lo. (md_parse_option): Add support for mips32r6 and mips64r6. Also update the nan option handling. (md_pcrel_from): Add cases for relocs: BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2. (mips_force_relocation): Prevent forced relaxation for MIPS r6. (md_apply_fix): Add support for relocs: BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3, BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and BFD_RELOC_LO16_PCREL. (s_mipsset): Add support for mips32r6 and mips64r6. (s_nan): Update to support the new nan2008 framework. (tc_gen_reloc): Add relocs: BFD_RELOC_MIPS_21_PCREL_S2, BFD_RELOC_MIPS_26_PCREL_S2, BFD_RELOC_MIPS_18_PCREL_S3, BFD_RELOC_MIPS_19_PCREL_S2, BFD_RELOC_HI16_S_PCREL and BFD_RELOC_LO16_PCREL. (mips_elf_final_processing): Updated to use the mips_nan2008. (mips_cpu_info_table): Add entries for mips32r6 and mips64r6. (macro): Enable ldc2, sdc2, ll, lld, swc2, sc, scd, cache, pref macros for R6. (mips_fix_adjustable): Make PC relative R6 relocations relative to the symbol and not the section. * configure.ac: Add support for mips32r6 and mips64r6. * configure: Regenerate. * doc/c-mips.texi: Document the -mips32r6 and -mips64r6 command line options. * doc/as.texinfo: Likewise. gas/testsuite/ * gas/mips/24k-triple-stores-1.s: If testing for r6 prevent non-supported instructions from being tested. * gas/mips/24k-triple-stores-2.s: Likewise. * gas/mips/24k-triple-stores-3.s: Likewise. * gas/mips/24k-triple-stores-6.s: Likewise. * gas/mips/beq.s: Likewise. * gas/mips/eva.s: Likewise. * gas/mips/ld-zero-3.s: Likewise. * gas/mips/mips32-cp2.s: Likewise. * gas/mips/mips32.s: Likewise. * gas/mips/mips4.s: Likewise. * gas/mips/add.s: Don't test the add instructions if r6, and add padding. * gas/mips/add.d: Check for a triple dot not a nop at the end of the disassembly output. * gas/mips/micromips@add.d: Likewise. * gas/mips/mipsr6@24k-branch-delay-1.d: New file. * gas/mips/mipsr6@24k-triple-stores-1.d: New file. * gas/mips/mipsr6@24k-triple-stores-2-llsc.d: New file. * gas/mips/mipsr6@24k-triple-stores-2.d: New file. * gas/mips/mipsr6@24k-triple-stores-3.d: New file. * gas/mips/mipsr6@24k-triple-stores-6.d: New file. * gas/mips/mipsr6@add.d: New file. * gas/mips/mipsr6@attr-gnu-4-1-msingle-float.l: New file. * gas/mips/mipsr6@attr-gnu-4-1-msingle-float.s: New file. * gas/mips/mipsr6@attr-gnu-4-1-msoft-float.l: New file. * gas/mips/mipsr6@attr-gnu-4-1-msoft-float.s: New file. * gas/mips/mipsr6@attr-gnu-4-2-mdouble-float.l: New file. * gas/mips/mipsr6@attr-gnu-4-2-mdouble-float.s: New file. * gas/mips/mipsr6@beq.d: New file. * gas/mips/mipsr6@bge.d: New file. * gas/mips/mipsr6@bgeu.d: New file. * gas/mips/mipsr6@blt.d: New file. * gas/mips/mipsr6@bltu.d: New file. * gas/mips/mipsr6@branch-misc-1.d: New file. * gas/mips/mipsr6@branch-misc-2-64.d: New file. * gas/mips/mipsr6@branch-misc-2pic-64.d: New file. * gas/mips/mipsr6@branch-misc-4-64.d: New file. * gas/mips/mipsr6@cache.d: New file. * gas/mips/mipsr6@eva.d: New file. * gas/mips/mipsr6@jal-svr4pic-noreorder.d: New file. * gas/mips/mipsr6@jal-svr4pic.d: New file. * gas/mips/mipsr6@ld-zero-2.d: New file. * gas/mips/mipsr6@ld-zero-3.d: New file. * gas/mips/mipsr6@loc-swap-dis.d: New file. * gas/mips/mipsr6@mips32-cp2.d: New file. * gas/mips/mipsr6@mips32-imm.d: New file. * gas/mips/mipsr6@mips32.d: New file. * gas/mips/mipsr6@mips32r2.d: New file. * gas/mips/mipsr6@mips4-fp.d: New file. * gas/mips/mipsr6@mips4-fp.l: New file. * gas/mips/mipsr6@mips4-fp.s: New file. * gas/mips/mipsr6@mips4.d: New file. * gas/mips/mipsr6@mips5-fp.d: New file. * gas/mips/mipsr6@mips5-fp.l: New file. * gas/mips/mipsr6@mips5-fp.s: New file. * gas/mips/mipsr6@mips64.d: New file. * gas/mips/mipsr6@msa-branch.d: New file. * gas/mips/mipsr6@msa.d: New file. * gas/mips/mipsr6@pref.d: New file. * gas/mips/mipsr6@relax-swap3.d: New file. * gas/mips/r6-64-n32.d: New file. * gas/mips/r6-64-n64.d: New file. * gas/mips/r6-64-removed.l: New file. * gas/mips/r6-64-removed.s: New file. * gas/mips/r6-64.s: New file. * gas/mips/r6-attr-none-double.d: New file. * gas/mips/r6-n32.d: New file. * gas/mips/r6-n64.d: New file. * gas/mips/r6-removed.l: New file. * gas/mips/r6-removed.s: New file. * gas/mips/r6.d: New file. * gas/mips/r6.s: New file. * gas/mips/mipsr6@mips32-dsp.d: New file. * gas/mips/mipsr6@mips32-dspr2.d: New file. * gas/mips/mipsr6@mips32r2-ill.l: New file. * gas/mips/mipsr6@mips32r2-ill.s: New file. * gas/mips/cache.s: Add r6 instruction varients. * gas/mips/mips.exp: Add support for the mips32r6 and mips64r6 architectures. Also prevent non r6 supported tests from running. Finally, add in support for running the new r6 tests. (run_dump_test_arch): Add support for mipsr6 tests. (run_list_test_arch): Add support for using files of the form arch@testname.l . include/elf/ * mips.h: Add relocs: R_MIPS_PC21_S2, R_MIPS_PC26_S2, R_MIPS_PC18_S3, R_MIPS_PC19_S2, R_MIPS_PCHI16 and R_MIPS_PCLO16. (E_MIPS_ARCH_32R6): New define. (E_MIPS_ARCH_64R6): New define. include/opcode/ * mips.h (mips_operand_type): Add new entries: OP_SAME_RS_RT, OP_CHECK_PREV and OP_NON_ZERO_REG. Add descriptions for the MIPS R6 instruction arguments: -a, -b, -d, -s, -t, -u, -v, -w, -x, -y, -A, -B, +I, +O, +R, +:, +\, +", +; (mips_check_prev_operand): New struct. (INSN2_FORBIDDEN_SLOT): New define. (INSN_ISA32R6): New define. (INSN_ISA64R6): New define. (INSN_UPTO32R6): New define. (INSN_UPTO64R6): New define. (mips_isa_table): Add INSN_UPTO32R6 and INSN_UPTO64R6. (ISA_MIPS32R6): New define. (ISA_MIPS64R6): New define. (CPU_MIPS32R6): New define. (CPU_MIPS64R6): New define. (cpu_is_member): Add cases for CPU_MIPS32R6, and CPU_MIPS64R6. ld/ * ldmain.c (get_emulation): Add support for -mips32r6 and -mips64r6. opcodes/ * mips-dis.c (mips_arch_choices): Add entries for mips32r6 and mips64r6. (parse_mips_dis_option): Allow MSA and virtualization support for mips64r6. (mips_print_arg_state): Add fields dest_regno and seen_dest. (mips_seen_register): New function. (print_insn_arg): Refactored code to use mips_seen_register function. Add support for OP_SAME_RS_RT, OP_CHECK_PREV and OP_NON_ZERO_REG. Changed OP_REPEAT_DEST_REG case to print out the register rather than aborting. (print_insn_args): Add length argument. Add code to correctly calculate the instruction address for pc relative instructions. (validate_insn_args): New static function. (print_insn_mips): Prevent jalx disassembling for r6. Use validate_insn_args. (print_insn_micromips): Use validate_insn_args. all the arguments are valid. * mips-formats.h (PREV_CHECK): New define. * mips-opc.c (decode_mips_operand): Add support for -a, -b, -d, -s, -t, -u, -v, -w, -x, -y, -A, -B, +I, +O, +R, +:, +\, +", +; (RD_pc): New define. (FS): New define. (I37): New define. (I69): New define. (mips_builtin_opcodes): Add MIPS R6 instructions. Exclude recoded MIPS R6 instructions from MIPS R2 instructions.
2014-09-15Ensure softfloat and singlefloat take precedence in consistency checksMatthew Fortune12-22/+45
gas/ * tc-mips.c (check_fpabi): Move softfloat and singlefloat checks higher. gas/testsuite/ * gas/mips/attr-gnu-4-5-msingle-float.l: New file. * gas/mips/attr-gnu-4-5-msingle-float.s: Likewise. * gas/mips/attr-gnu-4-5-msoft-float.l: Likewise. * gas/mips/attr-gnu-4-5-msoft-float.s: Likewise. * gas/mips/attr-gnu-4-6-msingle-float.l: Update expected output. * gas/mips/attr-gnu-4-6-msoft-float.l: Likewise. * gas/mips/attr-gnu-4-7-msingle-float.l: Likewise. * gas/mips/attr-gnu-4-7-msoft-float.l: Likewise. * gas/mips/mips.exp: Update expected output for FP ABI 5,6,7.
2014-09-15daily updateAlan Modra1-1/+1
2014-09-14Fix set up of queue-signal.exp test.Doug Evans2-0/+47
The test does a backtrace to see which thread (#2 or #3) is assigned to which SIGUSR (1 or 2). If the main thread gets to all_threads_running before the sigusr threads get to their entry point, then the function name isn't in the backtrace and the test fails. Alas this version of the code is within epsilon of what I started with, and then over-simplified things.
2014-09-13New command queue-signal.Doug Evans8-6/+297
If I want to change the signalled state of multiple threads it's a bit cumbersome to do with the "signal" command. What you really want is a way to set the signal state of the desired threads and then just do "continue". This patch adds a new command, queue-signal, to accomplish this. Basically "signal N" == "queue-signal N" + "continue". That's not precisely true in that "signal" can be used to inject any signal, including signals set to "nopass"; whereas "queue-signal" just queues the signal as if the thread stopped because of it. "nopass" handling is done when the thread is resumed which "queue-signal" doesn't do. One could add extra complexity to allow queue-signal to be used to deliver "nopass" signals like the "signal" command. I have no current need for it so in the interests of incremental complexity, I have left such support out and just have the code flag an error if one tries to queue a nopass signal. gdb/ChangeLog: * NEWS: Mention new "queue-signal" command. * infcmd.c (queue_signal_command): New function. (_initialize_infcmd): Add new queue-signal command. gdb/doc/ChangeLog: * gdb.texinfo (Signaling): Document new queue-signal command. gdb/testsuite/ChangeLog: * gdb.threads/queue-signal.c: New file. * gdb.threads/queue-signal.exp: New file.
2014-09-14daily updateAlan Modra1-1/+1
2014-09-13 * linux-nat.c (wait_lwp): Add debugging printf.Doug Evans2-0/+9
(linux_nat_wait_1): Ditto.
2014-09-13Pass plain-text prompt to with_gdb_prompt.Doug Evans3-3/+38
I had occasion to use with_gdb_prompt in a test for the patch for PR 17314 and was passing the plain text prompt as the value, "(top-gdb)", instead of a regexp, "\(top-gdb\)" (expressed as "\\(top-gdb\\)" in TCL). I then discovered that in order to restore the prompt gdb passes the original value of $gdb_prompt to "set prompt", which works because "set prompt \(gdb\) " is equivalent to "set prompt (gdb) ". Perhaps I'm being overly cautious but this feels a bit subtle, but at any rate as an API choice I'd much rather pass the plain text form to with_gdb_prompt. I also discovered that the initial value of gdb_prompt is set in two places to two different values. At the global level gdb.exp sets it to "\[(\]gdb\[)\]" and default_gdb_init sets it to "\\(gdb\\)". The former form is undesirable as an argument to "set prompt", but it's not clear to me that just deleting this code won't break anything. Thus I just changed the value to be consistent and added a comment. gdb/testsuite/ChangeLog: * lib/gdb.exp (gdb_prompt): Add comment and change initial value to be consistent with what default_gdb_init uses. (with_gdb_prompt): Change form of PROMPT argument from a regexp to the plain text of the prompt. Add some logging printfs. * gdb.perf/disassemble.exp: Update call to with_gdb_prompt.
2014-09-13Fix some ChangeLog typosAlan Modra1-4/+4
2014-09-13daily updateAlan Modra1-1/+1
2014-09-12after gdb_run_cmd, gdb_expect -> gdb_test_multiple/gdb_testPedro Alves21-463/+125
See: https://sourceware.org/ml/gdb-patches/2014-09/msg00404.html We have a number of places that do gdb_run_cmd followed by gdb_expect, when it would be better to use gdb_test_multiple or gdb_test. This converts all that "grep gdb_run_cmd -A 2 | grep gdb_expect" found. Tested on x86_64 Fedora 20, native and gdbserver. gdb/testsuite/ 2014-09-12 Pedro Alves <palves@redhat.com> * gdb.arch/gdb1558.exp: Replace uses of gdb_expect after gdb_run_cmd with gdb_test_multiple or gdb_test throughout. * gdb.arch/i386-size-overlap.exp: Likewise. * gdb.arch/i386-size.exp: Likewise. * gdb.arch/i386-unwind.exp: Likewise. * gdb.base/a2-run.exp: Likewise. * gdb.base/break.exp: Likewise. * gdb.base/charset.exp: Likewise. * gdb.base/chng-syms.exp: Likewise. * gdb.base/commands.exp: Likewise. * gdb.base/dbx.exp: Likewise. * gdb.base/find.exp: Likewise. * gdb.base/funcargs.exp: Likewise. * gdb.base/jit-simple.exp: Likewise. * gdb.base/reread.exp: Likewise. * gdb.base/sepdebug.exp: Likewise. * gdb.base/step-bt.exp: Likewise. * gdb.cp/mb-inline.exp: Likewise. * gdb.cp/mb-templates.exp: Likewise. * gdb.objc/basicclass.exp: Likewise. * gdb.threads/killed.exp: Likewise.
2014-09-12[IRIX] eliminate deprecated_insert_raw_breakpoint usesPedro Alves5-119/+102
The IRIX support wants to set a breakpoint to be hit when the startup phase is complete, which is where shared libraries have been mapped in. AFAIU, for most IRIX ports, that location is the entry point. For MIPS IRIX however, GDB needs to set a breakpoint earlier, in __dbx_link, as explained by: #ifdef SYS_syssgi /* On mips-irix, we need to stop the inferior early enough during the startup phase in order to be able to load the shared library symbols and insert the breakpoints that are located in these shared libraries. Stopping at the program entry point is not good enough because the -init code is executed before the execution reaches that point. So what we need to do is to insert a breakpoint in the runtime loader (rld), more precisely in __dbx_link(). This procedure is called by rld once all shared libraries have been mapped, but before the -init code is executed. Unfortuantely, this is not straightforward, as rld is not part of the executable we are running, and thus we need the inferior to run until rld itself has been mapped in memory. For this, we trace all syssgi() syscall exit events. Each time we detect such an event, we iterate over each text memory maps, get its associated fd, and scan the symbol table for __dbx_link(). When found, we know that rld has been mapped, and that we can insert the breakpoint at the symbol address. Once the dbx_link() breakpoint has been inserted, the syssgi() notifications are no longer necessary, so they should be canceled. */ proc_trace_syscalls_1 (pi, SYS_syssgi, PR_SYSEXIT, FLAG_SET, 0); #endif The loop in irix_solib_create_inferior_hook then runs until whichever breakpoint is hit first, the one set by solib-irix.c or the one set by procfs.c. Note the comment in disable_break talks about __dbx_init, but I think that's a typo for __dbx_link: - /* Note that it is possible that we have stopped at a location that - is different from the location where we inserted our breakpoint. - On mips-irix, we can actually land in __dbx_init(), so we should - not check the PC against our breakpoint address here. See procfs.c - for more details. */ This looks very much like referring to the loop in irix_solib_create_inferior_hook stopping at __dbx_link instead of at the entry point. What this patch does is convert these deprecated raw breakpoints to standard solib_event breakpoints. When the first solib-event breakpoint is hit, we delete all solib-event breakpoints. We do that in the so_ops->handle_event hook. This allows getting rid of the loop in irix_solib_create_inferior_hook completely, which should allow properly handling signals and other events in the early startup phase, like in SVR4. Built on x86_64 Fedora 20 with --enable-targets=all (builds solib-irix.c). Joel tested that with an earlier version of this patch "info shared" after starting a program gave the same list of shared libraries as before. gdb/ChangeLog: 2014-09-12 Pedro Alves <palves@redhat.com> * breakpoint.c (remove_solib_event_breakpoints_at_next_stop) (create_and_insert_solib_event_breakpoint): New functions. * breakpoint.h (create_and_insert_solib_event_breakpoint) (remove_solib_event_breakpoints_at_next_stop): New declarations. * procfs.c (dbx_link_bpt_addr, dbx_link_bpt): Delete globals. (remove_dbx_link_breakpoint): Delete function. (insert_dbx_link_bpt_in_file): Use create_and_insert_solib_event_breakpoint instead of deprecated_insert_raw_breakpoint. (procfs_wait): Don't check whether we hit __dbx_link here. (procfs_mourn_inferior): Don't delete the __dbx_link breakpoint here. * solib-irix.c (base_breakpoint): Delete global. (disable_break): Delete function. (enable_break): Use create_solib_event_breakpoint instead of deprecated_insert_raw_breakpoint. (irix_solib_handle_event): New function. (irix_solib_create_inferior_hook): Don't run the target or disable the mapping-complete breakpoint here. (_initialize_irix_solib): Install irix_solib_handle_event as so_ops->handle_event hook.
2014-09-12gas: fix bumping to architectures >v9 in sparc64-* targets.Jose E. Marchesi2-9/+25
This patch fixes two related problems: - By default gas is supposed to bump the current architecture (starting with v6) as it finds "higher" instructions as the assembling progresses. There are four possible cases depending on the usage of the -A and -bump options: (a) No -A and -bump are specified. In this case max_architecture must be the highest architecture not conflicting with the default architecture. The default opcode architecture is indirectly set in configure.tgt and is "v9" in sparc64 systems (from "v9-64"). Thus the maximum architecture in sparc64 systems must be "v9b". No warnings are echoed when the assembly of an instruction bumps the current architecture. (b) Only -bump is specified. This is like (a) but warnings are always issued when the assembly of an instruction bumps the current architecture. (c) Only -A is specified. In this case bumping to a new architecture is an error. (d) Both -A and -bump are specified. In this case max_architecture must be the highest architecture not conflicting with the default architecture, but warnings are only to be issued when bumping to an architecture higher than the architecture selected in the -A option. `max_architecture' is a global variable defined in tc-sparc.c which is initialized to the opcode architecture corresponding to the default architecture ("sparclite" for sparc-* targets and "v9" for sparc64-* targets). Then in `md_begin' it is set to the highest non-conflicting architecture, but only when both -A and -bump are specified. Thus (a) does not work: $ echo "fzero %f0" | as {standard input}: Assembler messages: {standard input}:1: Error: Architecture mismatch on "fzero". {standard input}:1: (Requires v9a|v9b; requested architecture is v9.) Neither (b): $ echo "fzero %f0" | as -bump {standard input}: Assembler messages: {standard input}:1: Error: Architecture mismatch on "fzero". {standard input}:1: (Requires v9a|v9b; requested architecture is v9.) Only (d) does: $ echo "fzero %f0" | as -Av9 -bump {standard input}: Assembler messages: {standard input}:1: Warning: architecture bumped from "v6" to "v9a" on "fzero" This patch fixes that function to "upgrade" `max_architecture' also in the (a) and (b) cases. Note that this problem becomes apparent only in sparc64-* targets because in sparc-* targets the default architecture is the "higher" among the 32bit architectures ("sparclite"). - Gas maintains a set of hardware capabilities associated with each gas architecture, in `sparc_arch_table'. On the other hand libopcodes maintains a set of hardware capabilities needed by each individual sparc instruction. When an instruction is assembled in `sparc_ip' gas checks for the presence of the hardware capabilities required by the instruction, emitting an error if some capability is missing. However, this mechanism does not work properly if the current architecture is bumped due to an instruction requiring new hw capabilities not present on either the default architecture or an architecture specified with -A: $ echo "fzero %f0" | as -bump {standard input}: Assembler messages: {standard input}:1: Warning: architecture bumped from "v6" to "v9a" on "fzero" {standard input}:1: Error: Hardware capability "vis" not enabled for "fzero". This patch fixes this by adding the set of required hw caps of an instruction if it triggers an architecture bump. The patch has been tested in sparc64-unknown-linux-gnu. gas/ChangeLog: 2014-09-12 Jose E. Marchesi <jose.marchesi@oracle.com> * config/tc-sparc.c (sparc_ip): Update the set of allowed hwcaps when bumping the current architecture. (md_begin): Adjust the highetst architecture level also when a specific architecture is not requested.
2014-09-12Add mips*-img-elf* target triple.Andrew Bennett16-10/+47
/ * configure.ac: Add mips*-img-elf* target triple. * configure: Regenerate. bfd/ * config.bfd: Add mips*-img-elf* target triple. gas/ * configure.tgt: Add mips*-img-elf* target triple. gas/testsuite/ * gas/mips/mips.exp: Add mips*-img-elf* target triple. binutils/testsuite/ * binutils-all/objcopy.exp: Add mips*-img-elf* target triple. * binutils-all/readelf.exp: Likewise. ld/ * configure.tgt: Add mips*-img-elf* target triple. ld/testsuite/ * ld-mips-elf/mips-elf.exp: Add support for mips*-img-elf* target triple.
2014-09-12PR tdep/17379: Fix internal-error when stack pointer is invalid.Edjunior Barbosa Machado5-3/+87
The problem is that rs6000_frame_cache attempts to read the stack backchain via read_memory_unsigned_integer, which throws an exception if the stack pointer is invalid. With this patch, it calls safe_read_memory_integer instead, which doesn't throw an exception and allows for safe handling of that situation. gdb/ChangeLog 2014-09-12 Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com> Ulrich Weigand  <uweigand@de.ibm.com> PR tdep/17379 * rs6000-tdep.c (rs6000_frame_cache): Use safe_read_memory_integer instead of read_memory_unsigned_integer. gdb/testcase/ChangeLog 2014-09-12 Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com> PR tdep/17379 * gdb.arch/powerpc-stackless.S: New file. * gdb.arch/powerpc-stackless.exp: New file.
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