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2016-03-03[GDBserver] Leave child suspended when step over parentYao Qi2-5/+17
I see the following GDBserver internal error in two cases, gdb/gdbserver/linux-low.c:1922: A problem internal to GDBserver has been detected. unsuspend LWP 17200, suspended=-1 1. step over a breakpoint on fork/vfork syscall instruction, 2. step over a breakpoint on clone syscall instruction and child threads hits a breakpoint, the stack backtrace is #0 internal_error (file=file@entry=0x44c4c0 "gdb/gdbserver/linux-low.c", line=line@entry=1922, fmt=fmt@entry=0x44c7d0 "unsuspend LWP %ld, suspended=%d\n") at gdb/gdbserver/../common/errors.c:51 #1 0x0000000000424014 in lwp_suspended_decr (lwp=<optimised out>, lwp=<optimised out>) at gdb/gdbserver/linux-low.c:1922 #2 0x000000000042403a in unsuspend_one_lwp (entry=<optimised out>, except=0x66e8c0) at gdb/gdbserver/linux-low.c:2885 #3 0x0000000000405f45 in find_inferior (list=<optimised out>, func=func@entry=0x424020 <unsuspend_one_lwp>, arg=arg@entry=0x66e8c0) at gdb/gdbserver/inferiors.c:243 #4 0x00000000004297de in unsuspend_all_lwps (except=0x66e8c0) at gdb/gdbserver/linux-low.c:2895 #5 linux_wait_1 (ptid=..., ourstatus=ourstatus@entry=0x665ec0 <last_status>, target_options=target_options@entry=0) at gdb/gdbserver/linux-low.c:3632 #6 0x000000000042a764 in linux_wait (ptid=..., ourstatus=0x665ec0 <last_status>, target_options=0) at gdb/gdbserver/linux-low.c:3770 #7 0x0000000000411163 in mywait (ptid=..., ourstatus=ourstatus@entry=0x665ec0 <last_status>, options=options@entry=0, connected_wait=connected_wait@entry=1) at gdb/gdbserver/target.c:214 #8 0x000000000040b1f2 in resume (actions=0x66f800, num_actions=1) at gdb/gdbserver/server.c:2757 #9 0x000000000040f660 in handle_v_cont (own_buf=0x66a630 "vCont;c:p45e9.-1") at gdb/gdbserver/server.c:2719 when GDBserver steps over a thread, other threads have been suspended, the "stepping" thread may create new thread, but GDBserver doesn't set it suspend count to 1. When GDBserver unsuspend threads, the child's suspend count goes to -1, and the assert is triggered. In fact, GDBserver has already taken care of suspend count of new thread when GDBserver is suspending all threads except the one GDBserver wants to step over by https://sourceware.org/ml/gdb-patches/2015-07/msg00946.html + /* If we're suspending all threads, leave this one suspended + too. */ + if (stopping_threads == STOPPING_AND_SUSPENDING_THREADS) + { + if (debug_threads) + debug_printf ("HEW: leaving child suspended\n"); + child_lwp->suspended = 1; + } but that is not enough, because new thread is still can be spawned in the thread which is being stepped over. This patch extends the condition that GDBserver set child's suspend count to one if it is suspending threads or stepping over the thread. gdb/gdbserver: 2016-03-03 Yao Qi <yao.qi@linaro.org> PR server/19736 * linux-low.c (handle_extended_wait): Set child suspended if event_lwp->bp_reinsert isn't zero.
2016-03-02Skip ld-elf/pr19162.d for hppa-*-*H.J. Lu2-1/+6
ld-elf/pr19162.d fails for hppa-*-* since Dave Anglin's fix for PR 12376 makes the data segment always start on a page boundary. * testsuite/ld-elf/pr19162.d: Skip hppa-*-*.
2016-03-03Correct fr30 commentAlan Modra2-3/+10
* fr30.cpu (f.m4): Replace bogus comment with a better guess at what is really going on.
2016-03-03Automatic date update in version.inGDB Administrator1-1/+1
2016-03-02Xfail mix_pic_and_non_pic on arm and aarch64H.J. Lu2-3/+12
* testsuite/ld-elf/shared.exp (mix_pic_and_non_pic): Add xfails. Xfail mix_pic_and_non_pic on "arm*-*-*" "aarch64*-*-*".
2016-03-02Call enqueue_pending_signal in linux_resume_one_lwp_throwYao Qi2-11/+6
Replace the code which is exactly what enqueue_pending_signal does. gdb/gdbserver: 2016-03-02 Yao Qi <yao.qi@linaro.org> * linux-low.c (linux_resume_one_lwp_throw): Replace code with enqueue_pending_signal.
2016-03-02[OBV] gdbserver: Only write ipa_tdesc_idx if agent is actually loaded.Marcin Kościelnicki2-4/+12
Fixes rather embarassing gdb.trace regressions. gdb/gdbserver/ChangeLog: * tracepoint.c (cmd_qtstart): Only set ipa_tdesc_idx if agent is actually loaded.
2016-03-02testsuite: Remove unnecessary code in fortran vla-history test.Bernhard Heckel2-3/+4
testsuite: Remove unnecessary code in fortran vla-history test. 2016-03-02 Bernhard Heckel <bernhard.heckel@intel.com> gdb/testsuite/Changelog: * gdb.fortran/vla-history.exp: Remove breakpoint.
2016-03-02testsuite: Fix timeout issues during print of vla-arrays.bernhard.heckel2-5/+13
Printing and resolving of dynamic array's causes sporadic timeout issues on loaded systems. 2016-03-02 Bernhard Heckel <bernhard.heckel@intel.com> gdb/testsuite/Changelog: * gdb.fortran/vla-history.exp: Lookup array elements and printing exceeds timeout.
2016-03-02testsuite: Fix run to main issue introduced by GCC 5.x.bernhard.heckel2-0/+5
Adding a dummy assignment as a new breakpoint anchor because breakpoint on return statement doesn't work for GCC 5.x. 2016-03-02 Bernhard Heckel <bernhard.heckel@intel.com> gdb/testsuite/Changelog: * gdb.cp/vla-cxx.cc: Insert dummy assignment as anchor for an breakpoint.
2016-03-02testsuite: Nullify pointers before first usage.Bernhard Heckel2-0/+5
Nullify pointers to avoid an undefined association status. 2016-03-02 Bernhard Heckel <bernhard.heckel@intel.com> gdb/testsuite/Changelog: * gdb.mi/vla.f90: Nullify pointer after declaration.
2016-03-02Add new maintainer to Write After Approval.Bernhard Heckel2-0/+5
Add new maintainer to Write After Approval. 2016-03-02 Bernhard Heckel <bernhard.heckel@intel.com> * MAINTAINERS (Write After Approval): Add Bernhard Heckel.
2016-03-02Fix detection of gfortran compilers.Bernhard Heckel2-1/+5
Newer gfortran compilers changed naming convention in DW_AT_producer tag. For example "GNU Fortran 4.6.3" vs "GNU Fortran2008 5.3.0" 2016-03-02 Bernhard Heckel <bernhard.heckel@intel.com> gdb/Changelog: * dwarf2read.c (new_symbol_full): Fix detection of gfortran compilers.
2016-03-03Regenerate or1k opcodes fileAlan Modra2-3/+4
CGEN patch now committed upstream to use hex numbers for large enums. * or1k-desc.h: Regenerate.
2016-03-02Adjust testsuite/gas/i386/x86_64-intel.d for COFFH.J. Lu2-1/+5
* testsuite/gas/i386/x86_64-intel.d: Adjusted for COFF.
2016-03-02Speedup mmo and pe orphan placement for relocatable linkH.J. Lu4-36/+68
Since there is no need to place output sections in specific order for relocatable link, we can skip merging flags of other input sections. PR ld/19739 * emultempl/mmo.em (mmo_place_orphan): Don't merge flags of other input sections for relocatable link. * emultempl/pe.em (gld_${EMULATION_NAME}_place_orphan): Likewise. * emultempl/pep.em (gld_${EMULATION_NAME}_place_orphan): Likewise.
2016-03-02Regenerate rl78 opcodes fileAlan Modra2-2/+3
For newer comments. * rl78-decode.c: Regenerate.
2016-03-02Regenerate bfd files.Alan Modra3-0/+7
* Makefile.in: Regenerate. * po/SRC-POTFILES.in: Regenerate.
2016-03-02Fix shift left warning at sourceAlan Modra4-2/+10
cpu/ * fr30.cpu (f-m4): Replace -1 << 4 with -16. opcodes/ * fr30-ibld.c: Regenerate.
2016-03-02Automatic date update in version.inGDB Administrator1-1/+1
2016-03-01Update PR ld/12365 test for GCC 6H.J. Lu2-1/+16
PR ld/12365 test is to verify that linker catches the reference to undefined symbol error caused by a GCC bug. Since the GCC bug has been fixed in GCC 6, update the test to verify that there is no reference to undefined symbol in executable * testsuite/ld-plugin/lto.exp: Update PR ld/12365 test for GCC 6.
2016-03-01Fix gdb.trace/ftrace-lock.c compilationPedro Alves2-0/+5
Fixes, on F23: .../src/gdb/testsuite/gdb.trace/ftrace-lock.c: In function 'gdb_agent_gdb_collect': .../src/gdb/testsuite/gdb.trace/ftrace-lock.c:50:3: warning: implicit declaration of function 'sleep' [-Wimplicit-function-declaration] sleep (1); ^ gdb/testsuite/ChangeLog: 2016-03-01 Pedro Alves <palves@redhat.com> * gdb.trace/ftrace-lock.c: Include <unistd.h>.
2016-03-01Fix gdb.threads/watchpoint-fork*.c compilationPedro Alves5-9/+19
This testcase currently fails to compile on Fedora 23: .../src/gdb/testsuite/gdb.threads/watchpoint-fork-mt.c: In function 'start': .../src/gdb/testsuite/gdb.threads/watchpoint-fork-mt.c:70:11: warning: implicit declaration of function 'pthread_yield' [-Wimplicit-function-declaration] i = pthread_yield (); ^ .../src/gdb/testsuite/gdb.threads/watchpoint-fork-child.c: In function 'forkoff': .../src/gdb/testsuite/gdb.threads/watchpoint-fork-child.c:114:8: warning: implicit declaration of function 'pthread_yield' [-Wimplicit-function-declaratio n] i = pthread_yield (); ^ /tmp/ccUkNIsI.o: In function `start': .../src/gdb/testsuite/gdb.threads/watchpoint-fork-mt.c:70: undefined reference to `pthread_yield' (...) collect2: error: ld returned 1 exit status UNSUPPORTED: gdb.threads/watchpoint-fork.exp: child: multithreaded: Couldn't compile watchpoint-fork-child.c: unrecognized error UNTESTED: gdb.threads/watchpoint-fork.exp: child: multithreaded: watchpoint-fork.exp testcase .../src/gdb/testsuite/gdb.threads/watchpoint-fork.exp completed i The glibc manual says, on _GNU_SOURCE: "You should define these macros by using ‘#define’ preprocessor directives at the top of your source code files. These directives must come before any #include of a system header file." I instead put it in the header all the .c files of the testcase must include anyway. gdb/testsuite/ChangeLog: 2016-03-01 Pedro Alves <palves@redhat.com> * gdb.threads/watchpoint-fork-child.c: Include "watchpoint-fork.h" before anything else. * gdb.threads/watchpoint-fork-mt.c: Likewise. Don't define _GNU_SOURCE here. * gdb.threads/watchpoint-fork-st.c: Include "watchpoint-fork.h" before anything else. * gdb.threads/watchpoint-fork.h: Define _GNU_SOURCE.
2016-03-01Fix gdb.base/catch-fork-kill.c compilationPedro Alves2-0/+5
Fixes: Running .../src/gdb/testsuite/gdb.base/catch-fork-kill.exp ... gdb compile failed, .../src/gdb/testsuite/gdb.base/catch-fork-kill.c: In function 'main': .../src/gdb/testsuite/gdb.base/catch-fork-kill.c:81:4: warning: implicit declaration of function 'wait' [-Wimplicit-function-declaration] wait (NULL); ^ gdb/testsuite/ChangeLog: 2016-03-01 Pedro Alves <palves@redhat.com> * gdb.base/catch-fork-kill.c: Include <sys/wait.h>.
2016-03-01Skip ld-elf/pr19162.d for arc targetH.J. Lu2-0/+6
* testsuite/ld-elf/pr19162.d: Skip arc target.
2016-03-01Fix output path for arm-disp-step.expYao Qi2-9/+7
This patch fixes the following error, ERROR: (/scratch/yao/gdb/build-git/arm-linux-gnueabihf/gdb/testsuite/outputs/gdb.arch/arm-disp-step/arm-disp-step) No such file or directory FAIL: gdb.arch/arm-disp-step.exp: Can't run to main gdb/testsuite: 2016-03-01 Yao Qi <yao.qi@linaro.org> * gdb.arch/arm-disp-step.exp: Use standard_testfile and prepare_for_testing.
2016-03-01Compile gdb.arch/arm-neon.c with "quiet"Yao Qi2-1/+5
When we compile gdb.arch/arm-neon.c with options that don't enable NEON, there are many error/warnings emitted into gdb.sum, which is annoying. This patch fixes it by passing quiet to prepare_for_testing. gdb/testsuite: 2016-03-01 Yao Qi <yao.qi@linaro.org> * gdb.arch/arm-neon.exp: Pass quiet to prepare_for_testing.
2016-03-01Speedup ELF orphan placement for relocatable linkH.J. Lu1-13/+20
Since there is no need to place output sections in specific order for relocatable link, we can skip merging flags of other input sections. PR ld/19739 * ld/emultempl/elf32.em (gld${EMULATION_NAME}_place_orphan): Don't merge flags of other input sections for relocatable link.
2016-03-01S390: Fix output path for s390-tdbregs test caseAndreas Arnez2-15/+7
Since test artifacts are always organized in a directory hierarchy, the s390-tdbregs test case is not executed correctly any more. This is because it uses an obsolete way of constructing the executable's path. This change invokes prepare_for_testing instead. gdb/testsuite/ChangeLog: * gdb.arch/s390-tdbregs.exp: Use prepare_for_testing instead of manually constructing the output path.
2016-03-01S390: Fix internal error with stackless inferiorAndreas Arnez5-2/+86
This fixes a GDB internal error that may occur when the inferior has no valid stack pointer in r15. gdb/testsuite/ChangeLog: * gdb.arch/s390-stackless.S: New. * gdb.arch/s390-stackless.exp: New. gdb/ChangeLog: * s390-linux-tdep.c (s390_backchain_frame_unwind_cache): Avoid exception when attempting to access the inferior's backchain.
2016-03-01Fix typo in print_insn_rl78_common function.Nick Clifton2-1/+7
PR target/19747 * rl78-dis.c (print_insn_rl78_common): Fix typo.
2016-03-01Automatic date update in version.inGDB Administrator1-1/+1
2016-02-29Add a testcase for PR ld/19162H.J. Lu4-0/+20
PR ld/19162 * testsuite/ld-elf/pr19162.d: New file. * testsuite/ld-elf/pr19162a.s: Likwise. * testsuite/ld-elf/pr19162b.s: Likwise.
2016-02-29aarch64-linux process record: more syscallsYao Qi2-9/+13
The last patch supports several syscalls in linux-record.c, so now GDB aarch64-linux backend can return these canonicalized syscall numbers per aarch64 syscall number. This patch fixes the following fails, Process record and replay target doesn't support syscall number 59^M Process record: failed to record execution log.^M ^M Program stopped.^M 0x00000020000eab28 in pipe () from /lib/aarch64-linux-gnu/libc.so.6^M (gdb) FAIL: gdb.reverse/pipe-reverse.exp: continue to breakpoint: marker2 Process record and replay target doesn't support syscall number 59^M Process record: failed to record execution log.^M ^M Program stopped.^M 0x00000020000eab28 in pipe () from /lib/aarch64-linux-gnu/libc.so.6^M (gdb) FAIL: gdb.reverse/readv-reverse.exp: continue to breakpoint: marker2 gdb: 2016-02-29 Yao Qi <yao.qi@linaro.org> * aarch64-linux-tdep.c (aarch64_canonicalize_syscall): Support eventfd2, eventfd2, dup3, inotify_init1, fallocate and pipe2. Return gdb_sys_epoll_create1 instead of gdb_sys_epoll_create for aarch64_sys_epoll_create1.
2016-02-29Support more syscalls in linux-record: pipe2 epoll_create1 eventfd2 ↵Yao Qi3-0/+28
fallocate dup3 and inotify_init1 This patch adds more syscalls in linux-record. gdb: 2016-02-29 Yao Qi <yao.qi@linaro.org> * linux-record.h (enum gdb_syscall) <gdb_sys_fallocate>: New. <gdb_sys_eventfd2, gdb_sys_epoll_create1, gdb_sys_dup3>: New. <gdb_sys_pipe2, gdb_sys_inotify_init1>: New. * linux-record.c (record_linux_system_call): Handle them.
2016-02-29[ARC] Local symbols relocation cleanupClaudiu Zissulescu12-40/+96
bfd/ 2016-02-29 Cupertino Miranda <cmiranda@synopsys.com> * elf32-arc.c (elf_arc_relocate_section): Added rules to fix the relocation addend when sections get merged. gas/ 2016-02-29 Cupertino Miranda <cmiranda@synopsys.com> Claudiu Zissulescu <Claudiu.Zissulescu@synopsys.com> * config/tc-arc.c (arc_extra_reloc): Change size to 0. (tc_arc_fix_adjustable): Changed default return value to 1. * testsuite/gas/arc/j.d: Updated expected symbol * testsuite/gas/arc/jl.d: Likewise * testsuite/gas/arc/relax-avoid1.d: Likewise * testsuite/gas/arc/st.d: Likewise ld/ 2016-02-29 Cupertino Miranda <cmiranda@synopsys.com> * testsuite/ld-elf/merge.d: Removed xfail for ARC. * testsuite/ld-elf/merge2.d: Likewise. * testsuite/ld-elf/merge3.d: Likewise.
2016-02-29[ARC] General fixes.Claudiu Zissulescu6-9/+41
bfd/ 2016-02-29 Cupertino Miranda <Cupertino.Miranda@synopsys.com> * elf32-arc.c (arc_elf_final_write_processing): Add condition to the flag change. (elf_arc_relocate_section): Fixes and conditions to support PIE. Assert for code sections dynamic relocs. gas/ 2016-02-29 Claudiu Zissulescu <Claudiu.Zissulescu@synopsys.com> * config/tc-arc.c: Enable code density instructions for ARC EM. ld/ 2016-02-29 Cupertino Miranda <Cupertino.Miranda@synopsys.com> * scripttempl/arclinux.sc: Force .tdata and .tbss to always be generated.
2016-02-29Automatic date update in version.inGDB Administrator1-1/+1
2016-02-28Don't recursively look for a symbol in all imports of imported modules.Iain Buclaw5-5/+197
Given two or more modules that import each other's scope, the current symbol lookup routines would go round in circles looking through each import from each module, possibly checking the same module twice or more until all possible paths are marked as "searched". Given enough modules, this causes an exponential slowdown in time taken to find symbols that do exist, and infinite recursion when they don't. gdb/ChangeLog: * d-namespace.c (d_lookup_symbol_imports): Avoid recursive lookups from cyclic imports. gdb/testsuite/ChangeLog: * gdb.dlang/circular.c: New file. * gdb.dlang/circular.exp: New file.
2016-02-28Automatic date update in version.inGDB Administrator1-1/+1
2016-02-27Automatic date update in version.inGDB Administrator1-1/+1
2016-02-26Fix CXX invalid cast from void *.Keith Seitz2-1/+6
This is an obvious patch to fix the following build error seen with --enable-build-with-cxx: ../../src/gdb/rs6000-tdep.c: In function ‘rs6000_frame_cache* rs6000_frame_cache(frame_info*, void**)’: ../../src/gdb/rs6000-tdep.c:3242:15: error: invalid conversion from ‘void*’ to ‘rs6000_frame_cache*’ [-fpermissive] return (*this_cache); ~^~~~~~~~~~~~ gdb/ChangeLog * rs6000-tdep.c (rs6000_frame_cache): Explicitly cast return result to avoid invalid conversion from void *.
2016-02-26Add aarch64-*-rtems* targetJoel Sherrill4-4/+5
2016-02-26Add x86_64-*-rtems* targetJoel Sherrill3-2/+6
ld/configure.tgt: Also add stanza for x86_64-*-elf.
2016-02-26[BFD][AARCH64]Fix MOVW_SABS_G(0,1,2) relocation overflow check.Renlin Li13-29/+79
For these three relocations, 17 bit signed value should be used, instead of 16 bit. The bitsize field is changed from 16 to 17, this field in aarch64 backend is used for overflow check only. bfd/ 2016-02-26 Renlin Li <renlin.li@arm.com> * elfnn-aarch64.c (elfNN_aarch64_howto_table): Fix signed overflow check for MOVW_SABS_G0, MOVW_SABS_G1, MOVW_SABS_G2. ld/ 2016-02-26 Renlin Li <renlin.li@arm.com> * testsuite/ld-aarch64/aarch64-elf.exp: Run new testcases. * testsuite/ld-aarch64/emit-relocs-270.d: Update to use new boundary. * testsuite/ld-aarch64/emit-relocs-271.d: Likewise. * testsuite/ld-aarch64/emit-relocs-272.d: Likewise. * testsuite/ld-aarch64/emit-relocs-270-overflow.d: New. * testsuite/ld-aarch64/emit-relocs-270-overflow.s: New. * testsuite/ld-aarch64/emit-relocs-271-overflow.d: New. * testsuite/ld-aarch64/emit-relocs-271-overflow.s: New. * testsuite/ld-aarch64/emit-relocs-272-overflow.d: New. * testsuite/ld-aarch64/emit-relocs-272-overflow.s: New.
2016-02-26Optimize x86 GOT32X/GOTPCRELX relocationsH.J. Lu92-122/+1320
R_386_GOT32X, R_X86_64_GOTPCRELX and R_X86_64_REX_GOTPCRELX relocations retrieve the symbol address via its GOT slot. If the symbol address is known at the link-time, we can use it directly by changing instruction encoding. Indirect branch can only be converted to PC relative direct branch. MOV can be changed to LEA or encoded differently with signed address. The subset of binary operations can be encoded only with signed address. If undefined weak symbol is resolved to zero link-time, we can use it as address. Zero addresss can't used with PC relative direct branch when PIC is true since the current PC is unknown. In 64-bit, 32-bit relocation for PC relatiave direct branch to zero may also overflow. If this optimization causes relocation overflow, --no-relax can be used to work around it. bfd/ PR ld/19609 * elf32-i386.c (elf_i386_convert_load): Convert to R_386_32 for load with locally bound symbols if PIC is false or there is no base register. Optimize branch to 0 if PIC is false. (elf_i386_relocate_section): Don't generate dynamic relocations against undefined weak symbols if PIC is false. * elf64-x86-64.c (elf_x86_64_convert_load): Disable optimization if we can't estimate relocation overflow with --no-relax. Convert to R_X86_64_32S/R_X86_64_32 for load with locally bound symbols if PIC is false. Optimize branch to 0 if PIC is false. (elf_x86_64_relocate_section): Don't generate dynamic relocations against undefined weak symbols if PIC is false. ld/ PR ld/19609 * testsuite/ld-i386/got1.dd: Updated. * testsuite/ld-i386/lea1c.d: Likewise. * testsuite/ld-i386/load1-nacl.d: Likewise. * testsuite/ld-i386/load1.d: Likewise. * testsuite/ld-i386/load4b.d: Likewise. * testsuite/ld-i386/load5b.d: Likewise. * testsuite/ld-i386/mov1b.d: Likewise. * testsuite/ld-x86-64/mov1b.d: Likewise. * testsuite/ld-x86-64/mov1d.d: Likewise. * testsuite/ld-ifunc/ifunc-21-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-21-x86-64.d: Likewise. * testsuite/ld-ifunc/ifunc-22-i386.d: Likewise. * testsuite/ld-ifunc/ifunc-22-x86-64.d: Likewise. * testsuite/ld-x86-64/gotpcrel1.dd: Likewise. * testsuite/ld-x86-64/lea1a.d: Likewise. * testsuite/ld-x86-64/lea1b.d: Likewise. * testsuite/ld-x86-64/lea1c.d: Likewise. * testsuite/ld-x86-64/lea1d.d: Likewise. * testsuite/ld-x86-64/lea1e.d: Likewise. * testsuite/ld-x86-64/lea1f.d: Likewise. * testsuite/ld-x86-64/mov1b.d: Likewise. * testsuite/ld-x86-64/mov1d.d: Likewise. * testsuite/ld-x86-64/pr13082-3b.d: Likewise. * testsuite/ld-x86-64/pr13082-4b.d: Likewise. * testsuite/ld-x86-64/lea1.s: Add tests for 32-bit registers. * testsuite/ld-i386/pr19609-1.s: New file. * testsuite/ld-i386/pr19609-1a.d: Likewise. * testsuite/ld-i386/pr19609-1b.d: Likewise. * testsuite/ld-i386/pr19609-1c.d: Likewise. * testsuite/ld-i386/pr19609-1d.d: Likewise. * testsuite/ld-i386/pr19609-1e.d: Likewise. * testsuite/ld-i386/pr19609-1f.d: Likewise. * testsuite/ld-i386/pr19609-1g.d: Likewise. * testsuite/ld-i386/pr19609-1h.d: Likewise. * testsuite/ld-i386/pr19609-1i.d: Likewise. * testsuite/ld-i386/pr19609-2.s: Likewise. * testsuite/ld-i386/pr19609-2a.d: Likewise. * testsuite/ld-i386/pr19609-2b.d: Likewise. * testsuite/ld-i386/pr19609-2c.d: Likewise. * testsuite/ld-i386/undefweak.s: Likewise. * testsuite/ld-i386/undefweaka.d: Likewise. * testsuite/ld-i386/undefweakb.d: Likewise. * testsuite/ld-x86-64/pr13082-3c.d: Likewise. * testsuite/ld-x86-64/pr13082-3d.d: Likewise. * testsuite/ld-x86-64/pr19609-1.s: Likewise. * testsuite/ld-x86-64/pr19609-1a.d: Likewise. * testsuite/ld-x86-64/pr19609-1b.d: Likewise. * testsuite/ld-x86-64/pr19609-1c.d: Likewise. * testsuite/ld-x86-64/pr19609-1d.d: Likewise. * testsuite/ld-x86-64/pr19609-1e.d: Likewise. * testsuite/ld-x86-64/pr19609-1f.d: Likewise. * testsuite/ld-x86-64/pr19609-1g.d: Likewise. * testsuite/ld-x86-64/pr19609-1h.d: Likewise. * testsuite/ld-x86-64/pr19609-1i.d: Likewise. * testsuite/ld-x86-64/pr19609-1j.d: Likewise. * testsuite/ld-x86-64/pr19609-1k.d: Likewise. * testsuite/ld-x86-64/pr19609-1l.d: Likewise. * testsuite/ld-x86-64/pr19609-1m.d: Likewise. * testsuite/ld-x86-64/pr19609-2.s: Likewise. * testsuite/ld-x86-64/pr19609-2a.d: Likewise. * testsuite/ld-x86-64/pr19609-2b.d: Likewise. * testsuite/ld-x86-64/pr19609-2c.d: Likewise. * testsuite/ld-x86-64/pr19609-2d.d: Likewise. * testsuite/ld-x86-64/pr19609-3.s: Likewise. * testsuite/ld-x86-64/pr19609-3a.d: Likewise. * testsuite/ld-x86-64/pr19609-3b.d: Likewise. * testsuite/ld-x86-64/pr19609-4.s: Likewise. * testsuite/ld-x86-64/pr19609-4a.d: Likewise. * testsuite/ld-x86-64/pr19609-4b.d: Likewise. * testsuite/ld-x86-64/pr19609-4c.d: Likewise. * testsuite/ld-x86-64/pr19609-4d.d: Likewise. * testsuite/ld-x86-64/pr19609-4e.d: Likewise. * testsuite/ld-x86-64/pr19609-5.s: Likewise. * testsuite/ld-x86-64/pr19609-5a.d: Likewise. * testsuite/ld-x86-64/pr19609-5b.d: Likewise. * testsuite/ld-x86-64/pr19609-5c.d: Likewise. * testsuite/ld-x86-64/pr19609-5d.d: Likewise. * testsuite/ld-x86-64/pr19609-5e.d: Likewise. * testsuite/ld-x86-64/pr19609-6.s: Likewise. * testsuite/ld-x86-64/pr19609-6a.d: Likewise. * testsuite/ld-x86-64/pr19609-6b.d: Likewise. * testsuite/ld-x86-64/pr19609-6c.d: Likewise. * testsuite/ld-x86-64/pr19609-6d.d: Likewise. * testsuite/ld-x86-64/pr19609-7.s: Likewise. * testsuite/ld-x86-64/pr19609-7a.d: Likewise. * testsuite/ld-x86-64/pr19609-7b.d: Likewise. * testsuite/ld-x86-64/pr19609-7c.d: Likewise. * testsuite/ld-x86-64/pr19609-7d.d: Likewise. * testsuite/ld-i386/i386.exp: Run undefweak tests and tests for PR ld/19609. * testsuite/ld-x86-64/x86-64.exp: Run pr13082-3c, pr13082-3d and tests for PR ld/19609.
2016-02-26Discard FDEs for zero-length address ranges.Cary Coutant3-5/+47
2016-02-26 Egor Kochetov <egor.kochetov@intel.com> Cary Coutant <ccoutant@gmail.com> gold/ PR gold/19735 * ehframe.h (Cie::fde_encoding): New method. * ehframe.cc (Eh_frame::read_fde): Discard FDEs for zero-length address ranges.
2016-02-26Fix various bugs in arm_record_exreg_ld_st_insnYao Qi4-35/+115
This patch fixes various bugs in arm_record_exreg_ld_st_insn, and use gdb.reverse/insn-reverse.c to test more arm instructions. - Set flag SINGLE_REG correctly. In the arch reference manual, SING_REG is true when the bit 8 of instruction is zero. - Record the right D registers for instructions changing S registers. - Fix the order of length and address in record_buf_mem array. - Shift the offset by 2 instead of by 24. This patch also fixes one internal error, (gdb) PASS: gdb.reverse/finish-precsave.exp: BP at end of main continue^M Continuing.^M ../../binutils-gdb/gdb/utils.c:1072: internal-error: virtual memory exhausted.^M A problem internal to GDB has been detected,FAIL: gdb.reverse/finish-precsave.exp: run to end of main (GDB internal error) gdb: 2016-02-26 Yao Qi <yao.qi@linaro.org> * arm-tdep.c (arm_record_exreg_ld_st_insn): Set 'single_reg' per bit 8. Check bit 20 instead of bit 4 for VMOV instruction. Record D registers for instructions changing S registers. Change of the order of length and address in record_buf_mem array. gdb/testsuite: 2016-02-26 Yao Qi <yao.qi@linaro.org> * gdb.reverse/insn-reverse.c [__arm__] (ext_reg_load): New. [__arm__] (ext_reg_mov, ext_reg_push_pop): New. (testcases): Update.
2016-02-26Record right reg num of thumb special data instructionsYao Qi2-4/+9
When GDB decodes these thumb special data instructions, such as 'mov sp, r7' the Rd is got incorrectly. According to the arch reference manual, the Rd is DN:Rdn, in which DN is bit 7 and Rdn is bits 0 to 2. This patch fixes it. gdb: 2016-02-26 Yao Qi <yao.qi@linaro.org> * arm-tdep.c (thumb_record_ld_st_reg_offset): Fix the register number of Rd.
2016-02-26Rename gdb.reverse/aarch64.{exp,c} to gdb.reverse/insn-reverse.{exp,c}Yao Qi3-0/+7
gdb/testsuite: 2016-02-26 Yao Qi <yao.qi@linaro.org> * gdb.reverse/aarch64.c: Rename to ... * gdb.reverse/insn-reverse.c: ... it. * gdb.reverse/aarch64.exp: Rename to ... * gdb.reverse/insn-reverse.exp: ... it.
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