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2016-03-22Attribute with DW_FORM_flag_presentAlan Modra2-1/+7
PR 19850 * dwarf2.c (read_attribute_value): Skip info_ptr check for DW_FORM_flag_present.
2016-03-22Fix tic54x regressionAlan Modra2-3/+4
One of the tic54x testcases looks for a section alignment of 1. After 9136aa49 the alignment became 0. While it happens that an alignment of 0 is treated as an alignment of 1, there is no reason to not apply the explicit alignment. * write.c (record_alignment): Revert 2016-02-18 change.
2016-03-22Remove more alloca callsAlan Modra3-5/+16
* config/tc-alpha.c (load_expression): Replace alloca with xmalloc. (emit_jsrjmp, tc_gen_reloc): Likewise. * config/tc-i370.c (i370_macro): Likewise.
2016-03-22Restore v850-rh850 as a recognised v850 architecture name for backwards ↵Nick Clifton2-1/+5
compatibility. bfd * cpu-v850_rh850.c (arch_info_struct): Restore v850-rh850 as an architecture name for backwards compatibility.
2016-03-22Fix possible unbounded stack use in peXXigen.cNick Clifton2-5/+12
* peXXigen.c (_bfd_XXi_write_codeview_record): Fix possible unbounded stack use.
2016-03-22Add -Wstack-usage to the gcc warning flags list, but only if using a ↵Nick Clifton15-8/+171
sufficiently recent version of gcc. bfd * warning.m4 (GCC_WARN_CFLAGS): Only add -Wstack-usage if using a sufficiently recent version of GCC. * configure: Regenerate. others * configure: Regenerate.
2016-03-21Fix problem where gold fails to issue an undefined symbol error during LTO.Cary Coutant7-2/+143
During LTO, if (1) an IR file contains a COMDAT group that is kept, (2) a later non-claimed file contains the same group, which we discard, and (3) the plugin fails to provide a definition of the symbols in that COMDAT group, gold silently resolves any references to those symbols to 0. This patch adds a check for a placeholder symbol when deciding whether to issue an undefined symbol error. It also adds an extra note after any undefined placeholder symbol error that explains that a definition was expected from the plugin. gold/ PR gold/19842 * errors.cc (Errors::undefined_symbol): Add info message when symbol should have been provided by a plugin. * target-reloc.h (issue_undefined_symbol_error): Check for placeholder symbols defined in discarded sections. * testsuite/Makefile.am (plugin_test_9b): New test case. * testsuite/Makefile.in: Regenerate. * testsuite/plugin_test_9b_elf.cc: New test source file. * testsuite/plugin_test_9b_ir.cc: New test source file.
2016-03-22Binutils fails to build with -O0Alan Modra2-2/+6
PR 19851 * plugin.c (try_load_plugin): Avoid -Wstack-usage warning.
2016-03-22Automatic date update in version.inGDB Administrator1-1/+1
2016-03-21arc/nps400: Add first nps400 instructionsAndrew Burgess10-0/+232
Adds the first few nps400 instructions. gas/ChangeLog: * testsuite/gas/arc/nps400-0.d: New file. * testsuite/gas/arc/nps400-0.s: New file. * testsuite/gas/arc/nps400-1.d: New file. * testsuite/gas/arc/nps400-1.s: New file. include/ChangeLog: * opcodes/arc.h (insn_class_t): Add BITOP type. opcodes/ChangeLog: * arc-nps400-tbl.h: New file. * arc-opc.c: Add top level comment. (insert_nps_3bit_dst): New function. (extract_nps_3bit_dst): New function. (insert_nps_3bit_src2): New function. (extract_nps_3bit_src2): New function. (insert_nps_bitop_size): New function. (extract_nps_bitop_size): New function. (arc_flag_operands): Add nps400 entries. (arc_flag_classes): Add nps400 entries. (arc_operands): Add nps400 entries. (arc_opcodes): Add nps400 include.
2016-03-21arc/opcodes: Use flag operand class to handle multiple flag matchesAndrew Burgess9-40/+81
When parsing the operand instruction flags we don't currently detect the case where multiple flags are provided from the same class set, these will be accepted and the bit values merged together, resulting in the wrong instruction being assembled. For example: adc.n.eq r0,r0,r2 Will assemble without error, yet, upon disassembly, the instruction will actually be: adc.c r0,r0,r2 In a later commit the concept of required flags will be introduced. Required flags are just like normal instruction flags, except that they must be present for the instruction to match. Adding this will allow for simpler instructions in the instruction table, and allow for more sharing of operand extraction and insertion functions. To solve both of the above issues (multiple flags being invalid, and required flags), this commit reworks the flag class mechanism. Currently the flag class is never used. Each instruction can reference multiple flag classes, each flag class has a class type and a set of flags. However, at present, the class type is never used. The current values identify the type of instruction that the flag will be used in, but this is not required information. Instead, this commit discards the old flag classes, and introduces 3 new classes. The first F_CLASS_NONE, is just a NULL marker value, and is only used in the NULL marker flag class. The other two flag classes are F_FLAG_OPTIONAL, and F_FLAG_REQUIRED. The class F_FLAG_OPTIONAL has the property that at most one of the flags in the flag set for that class must be present in the instruction. The "at most" one means that no flags being present is fine. The class F_FLAG_REQUIRED is not currently used, but will be soon. With this class, exactly one of the flags from this class must be present in the instruction. If the flag class contains a single flag, then of course that flag must be present. However, if the flag class contained two or more, then one, and only one of them must be present. gas/ChangeLog: * config/tc-arc.c (find_opcode_match): Move lnflg, and i declarations to start of block. Reset code on all flags before attempting to match them. Handle multiple hits on the same flag. Handle flag class. * testsuite/gas/arc/asm-errors.d: New file. * testsuite/gas/arc/asm-errors.err: New file. * testsuite/gas/arc/asm-errors.s: New file. include/ChangeLog: * opcode/arc.h (flag_class_t): Remove all old flag classes, add 3 new classes instead. opcodes/ChangeLog: * arc-opc.c (arc_flag_classes): Convert all flag classes to use the new class enum values.
2016-03-21arc: Add nps400 machine type, and assembler flag.Andrew Burgess14-2/+50
This commit introduces the nps400 machine type as a variant of arc. There's a new flag in the assembler to select this machine type. All other changes are just adding handling of the new machine type into the relevant places. The nps400 is an arc700 variant with some vendor specific instructions added into the instruction set. This commit does not add any of the new instructions, this is just laying the groundwork for future commits. However, in preparation for these new instructions a new opcode define for nps400 has been added to include/opcode/arc.h, this new opcode define is used in the assembler and disassembler along with the existing define for arc700 such that when assembling and disassembling for nps400 the user will have access to all arc700 instructions and all the nps400 vendor extension instructions. bfd/ChangeLog: * archures.c (bfd_mach_arc_nps400): Define. * bfd-in2.h: Regenerate. * cpu-arc.c (arch_info_struct): New entry for nps400, renumber some existing entries to make space. * elf32-arc.c (arc_elf_object_p): Add nps400 case. (arc_elf_final_write_processing): Likewise. binutils/ChangeLog: * readelf.c (decode_ARC_machine_flags): Handle nps400. gas/ChangeLog: * config/tc-arc.c (cpu_types): Add nps400 entry. (check_zol): Handle nps400. include/ChangeLog: * elf/arc.h (E_ARC_MACH_NPS400): Define. * opcode/arc.h (ARC_OPCODE_NPS400): Define. opcodes/ChangeLog: * arc-dis.c (print_insn_arc): Handle nps400.
2016-03-21arc: Remove EF_ARC_CPU_GENERIC constant.Andrew Burgess8-92/+97
The constant EF_ARC_CPU_GENERIC is defined in the include/elf/arc.h file, and is used in a few places in binutils, however, this constant should never make it into the elf header flags; we always set a valid cpu type in the assembler, which should then be copied over during linking. There are some non-gnu arc compilers that don't write an architecture type into the e_flags field, instead leaving the field as 0, which is the EF_ARC_CPU_GENERIC value. This non-gnu compiler uses the machine type to distinguish between the old and newer arc architectures, setting the machine type to EM_ARC_COMPACT for old arc600, arc601, and arc700 architectures, while using EM_ARC_COMPACT2 for newer arcem and archs architectures. Previously when displaying the machine flags for an older EM_ARC_COMPACT machine, if the e_flags had not been filled in, then we relied on the default case statement to display the message "Generic ARCompact", while in the EM_ARC_COMPACT2 case we specifically handled EF_ARC_CPU_GENERIC to print "ARC Generic", leaving the default case to print a message about unrecognised cpu flag. After this commit EF_ARC_CPU_GENERIC has been removed, for both machine types EM_ARC_COMPACT and EM_ARC_COMPACT2 we now rely on the default case statement to handle the situation where the e_flags has not been filled in. The message displayed is now "Unknown ARCompact" (for older arc architectures) and "Unknown ARC" (for the newer architectures). The switch from "Generic" to "Unknown" in the message string is for clarity, calling the file "Generic" can give the impression that the file is compiled for a common sub-set of the architectures, and would therefore run on any type of machine (or at least any type of new or old machine depending on if the machine type is ARC or ARCv2). However, this was not what "Generic" meant, it really meant "Unknown", so that's what we now say. As part of the merging of the readelf flag reading code, I have unified the strings used in displaying the ELF ABI. This means that for older arc machines (arc600, arc601, and arc700) the string used for the original ABI, and ABIv2 have changed, the current ABIv3 remains the same. For the newer architectures (arcem and archs) the abi strings remain unchanged in all cases. bfd/ChangeLog: * elf32-arc.c (arc_elf_print_private_bfd_data): Remove use of EF_ARC_CPU_GENERIC. (arc_elf_final_write_processing): Don't bother setting cpu field in e_flags, this will have been set elsewhere. binutils/ChangeLog: * readelf.c (get_machine_flags): Move arc processing into... (decode_ARC_machine_flags): ... new function. Remove use of EF_ARC_CPU_GENERIC, change default case from "generic arc" to "unknown arc". Merged ABI printing between two machine types. gas/ChangeLog: * config/tc-arc.c (arc_select_cpu): Remove use of EF_ARC_CPU_GENERIC. include/ChangeLog: * elf/arc.h (EF_ARC_CPU_GENERIC): Delete. Update related comment.
2016-03-21arc: Remove duplicated constant in include/elf/arc.hAndrew Burgess4-6/+11
In the include/elf/arc.h there are two constants that mask out the machine architecture field. One is used lots (EF_ARC_MACH_MSK), the other is used only once (EF_ARC_MACH). Remove EF_ARC_MACH. bfd/ChangeLog: * elf32-arc.c (arc_elf_final_write_processing): Switch to using EF_ARC_MACH_MSK. include/ChangeLog: * elf/arc.h (EF_ARC_MACH): Delete. (EF_ARC_MACH_MSK): Remove out of date comment.
2016-03-21arc/gas: default mach is arc700, initialised in md_beginAndrew Burgess8-50/+64
This commit restructures the selection of the default cpu/mach so that the choice is made from md_begin (if the user has not provided a command line choice). This will reduce the amount of change needed in a later patch. At the request of Synopsys, the default architecture changes to ARC700 from this commit, previously the default was a non-existent super-architecture that contained all instructions from all arc variants. There's some clean up associated with removing the default merged architecture, and a small test fix now that the default is ARC700. binutils/ChangeLog: * testsuite/binutils-all/objdump.exp (cpus_expected): Add ARC700 to the architecture list. gas/ChangeLog: * config/tc-arc.c (arc_target): Delay initialisation until arc_select_cpu. (arc_target_name): Likewise. (arc_features): Likewise. (arc_mach_type): Likewise. (cpu_types): Remove "all" entry. (arc_select_cpu): New function, most of the content is from... (md_parse_option): ... here. Call new arc_select_cpu. (md_begin): Call arc_select_cpu if needed, default is now arc700. include/ChangeLog: * opcode/arc.h (ARC_OPCODE_BASE): Delete. opcodes/ChangeLog: * arc-opc.c (BASE): Delete.
2016-03-21gas/arc: Fix test for big-endian arcAndrew Burgess3-0/+15
The inline-data test checks the specific bytes laid down by the assembler, and so relies on the endianness of the target. I could change the expected results to be endian agnostic, however, I worried that a bug in the assembler that gets the endianness wrong would then slip through. Instead I add a new test for big-endian arc, and restrict the existing test to little-endian arc. gas/ChangeLog: * testsuite/gas/arc/inline-data-1.d: Add target restriction. * testsuite/gas/arc/inline-data-2.d: New file.
2016-03-21Remove use of alloca.Nick Clifton52-267/+410
bfd * warning.m4 (GCC_WARN_CFLAGS): Add -Wstack-usage=262144 * configure: Regenerate. * elf32-m68hc1x.c (elf32_m68hc11_relocate_section): Replace use of alloca with call to xmalloc. * elf32-nds32.c: Likewise. * elf64-hppa.c: Likewise. * elfxx-mips.c: Likewise. * pef.c: Likewise. * pei-x86_64.c: Likewise. * som.c: Likewise. * xsym.c: Likewise. binutils * dlltool.c: Replace use of alloca with call to xmalloc. * dllwrap.c: Likewise. * nlmconv.c: Likewise. * objdump.c: Likewise. * resrc.c: Likewise. * winduni.c: Likewise. * configure: Regenerate. gas * atof-generic.c: Replace use of alloca with call to xmalloc. * cgen.c: Likewise. * dwarf2dbg.c: Likewise. * macro.c: Likewise. * remap.c: Likewise. * stabs.c: Likewise. * symbols.c: Likewise. * config/obj-elf.c: Likewise. * config/tc-aarch64.c: Likewise. * config/tc-arc.c: Likewise. * config/tc-arm.c: Likewise. * config/tc-avr.c: Likewise. * config/tc-ia64.c: Likewise. * config/tc-mips.c: Likewise. * config/tc-msp430.c: Likewise. * config/tc-nds32.c: Likewise. * config/tc-ppc.c: Likewise. * config/tc-sh.c: Likewise. * config/tc-tic30.c: Likewise. * config/tc-tic54x.c: Likewise. * config/tc-xstormy16.c: Likewise. * config/te-vms.c: Likewise. * configure: Regenerate. ld * emultempl/msp430.em: Replace use of alloca with call to xmalloc. * plugin.c: Likewise. * pe-dll.c: Likewise.
2016-03-21ARM process record: median instructionsYao Qi2-0/+90
This patch is to support some ARM median instructions in process record. With this patch applied, these fails are fixed: -FAIL: gdb.reverse/break-precsave.exp: run to end of main -FAIL: gdb.reverse/break-precsave.exp: go to end of main forward -FAIL: gdb.reverse/break-precsave.exp: end of record log -FAIL: gdb.reverse/break-reverse.exp: continue to breakpoint: end -FAIL: gdb.reverse/break-reverse.exp: end of record log -FAIL: gdb.reverse/until-precsave.exp: run to end of main -FAIL: gdb.reverse/until-precsave.exp: advance to marker2 -FAIL: gdb.reverse/until-precsave.exp: until func, not called by current frame -FAIL: gdb.reverse/until-precsave.exp: reverse-advance to marker2 -FAIL: gdb.reverse/until-precsave.exp: reverse-finish from marker2 -FAIL: gdb.reverse/until-precsave.exp: reverse-advance to final return of factorial -FAIL: gdb.reverse/until-precsave.exp: reverse-until to entry of factorial -FAIL: gdb.reverse/until-reverse.exp: advance to marker2 -FAIL: gdb.reverse/until-reverse.exp: until func, not called by current frame -FAIL: gdb.reverse/until-reverse.exp: reverse-advance to marker2 -FAIL: gdb.reverse/until-reverse.exp: reverse-finish from marker2 -FAIL: gdb.reverse/until-reverse.exp: reverse-advance to final return of factorial -FAIL: gdb.reverse/until-reverse.exp: reverse-until to entry of factorial gdb: 2016-03-21 Yao Qi <yao.qi@linaro.org> * arm-tdep.c (arm_record_media): New. (arm_record_ld_st_reg_offset): Call arm_record_media.
2016-03-21Canonicalize more arm linux syscallsYao Qi2-10/+370
This patch is to canonicalize more syscalls on arm linux in process record. In this patch, I also comment out some syscalls which isn't handled by GDB now. With this patch applied, two fails are fixed. -FAIL: gdb.reverse/fstatat-reverse.exp: continue to breakpoint: marker2 -FAIL: gdb.reverse/recvmsg-reverse.exp: continue to breakpoint: marker2 gdb: 2016-03-21 Yao Qi <yao.qi@linaro.org> * arm-linux-tdep.c (arm_canonicalize_syscall): Canonicalize more syscalls.
2016-03-20Fix problem where gold cannot build .eh_frame_hdr from ld -r output.Cary Coutant7-12/+145
When running ld -r on objects that have comdat groups, when gold deduplicates a function in a comdat group, it removes the relocations from the EH information that referred to the dropped copy of the function. When running a final link using the result of the -r link, the missing relocation cause it to fail to recognize the FDE for the dropped function. This patch improves gold's FDE scanning to take into account the possibility that an FDE corresponds to a dropped function, and drops that FDE as well. Gnu ld, on the other hand, leaves the relocations in the ld -r output, but makes them R_NONE with an r_sym field of 0. This was sufficient to let both linkers recognize the FDE properly. With this fix, if you do an ld -r with gold, then do the final link with Gnu ld, the .eh_frame_hdr section will not be generated. To make it work with Gnu ld, we would have to leave the R_NONE relocations in, but I think it's better to drop the relocations entirely. I'd hope that if you're doing a -r link with gold, you'll also do the final link with gold. gold/ PR gold/19002 * ehframe.cc (Eh_frame::read_fde): Check for dropped functions. * testsuite/Makefile.am (eh_test_2): New test. * testsuite/Makefile.in: Regenerate. * testsuite/eh_test_2.sh: New test script. * testsuite/eh_test_a.cc (bar): Make it comdat. * testsuite/eh_test_b.cc (bar): Add a duplicate copy.
2016-03-21Automatic date update in version.inGDB Administrator1-1/+1
2016-03-20tc-i386.c: store encoded instructions in unsigned char[]Trevor Saunders2-33/+68
char can be a signed type, and some of the values in these arrays are greater than 0x80 which means they are outside of the range a signed char can store. Fortunately it seems most compilers handle this in the obvious way by storing the same bits as a negative number, but this is wierd and easily fixed. gas/ChangeLog: 2016-03-20 Trevor Saunders <tbsaunde+binutils@tbsaunde.org> * tc-i386.c (f32_1): Change type to unsigned char[]. (f32_2): Likewise. (f32_3): Likewise. (f32_4): Likewise. (f32_5): Likewise. (f32_6): Likewise. (f32_7): Likewise. (f32_8): Likewise. (f32_9): Likewise. (f32_10): Likewise. (f32_11): Likewise. (f32_12): Likewise. (f32_13): Likewise. (f32_14): Likewise. (f16_3): Likewise. (f16_4): Likewise. (f16_5): Likewise. (f16_6): Likewise. (f16_7): Likewise. (f16_8): Likewise. (jump_31): Likewise. (f32_patt): Likewise. (f16_patt): Likewise. (alt_3): Likewise. (alt_4): Likewise. (alt_5): Likewise. (alt_6): Likewise. (alt_7): Likewise. (alt_8): Likewise. (alt_9): Likewise. (alt_10): Likewise. (alt_patt): Likewise.
2016-03-20Automatic date update in version.inGDB Administrator1-1/+1
2016-03-19Automatic date update in version.inGDB Administrator1-1/+1
2016-03-18Remove is_n64_ data member from Mips_relobj class.Vladimir Radosavljevic4-49/+43
elfcpp/ * mips.h (abi_64): Remove. gold/ * mips.cc (Mips_relobj::is_n64_): Remove. (Target_mips::ei_class_): Likewise. (Mips_relobj::is_newabi): Call methods. (Mips_relobj::is_n64): Change checking for N64 ABI. (Target_mips::is_output_n64): Likewise. (Target_mips::merge_processor_specific_flags): Remove ei_class argument, and remove comparing ei_class. (Target_mips::do_adjust_elf_header): Remove setting EI_CLASS field of the ELF header. (Target_mips::do_finalize_sections): Don't pass ei_class argument to merge_processor_specific_flags. (Target_mips::elf_mips_abi_name): Remove ei_class argument, and change checking for N64 ABI.
2016-03-18Update description of AArch64 assembler directives.Nick Clifton2-4/+45
gas * doc/c-aarch64.texi (AArch64 Directives): Add descriptions of .cpu, .dword, .even, .inst. .tlsdescadd, .tlsdesccall, .tlsdescldr and .xword directives.
2016-03-18Fix thinko in new GET_VEC_ELEMENT macro.Nick Clifton2-1/+2
* cpustate.c: (GET_VEC_ELEMENT): And fix thinko using macro arguments.
2016-03-18Fix the disassembly of the AArch64's OOR instruction as a MOV instruction.Nick Clifton5-1/+26
PR target/19721 opcodes * aarch64-tbl.h (aarch64_opcode_table): Fix type of second operand of MOV insn that aliases an ORR insn. gas * testsuite/gas/aarch64/pr19721.s: New test source file. * testsuite/gas/aarch64/pr19721.d: New test driver file.
2016-03-18Make sparc_software_single_step staticYao Qi3-3/+6
sparc_software_single_step is not used out of sparc-tdep.c, so this patch makes it static. gdb: 2016-03-18 Yao Qi <yao.qi@linaro.org> * sparc-tdep.c (sparc_software_single_step): Make it static. * sparc-tdep.h (sparc_software_single_step): Remove declaration.
2016-03-18Fix code to check for illegal element numbers when accessing AArch64 vector ↵Nick Clifton2-2/+6
registers in AArch64 sim. * cpustate.c (GET_VEC_ELEMENT): Fix off by one error checking for an invalid element index. (SET_VEC_ELEMENT): Likewise.
2016-03-18[spu] throw error when target_read_memory failsYao Qi2-1/+8
I happen to see that 1 is returned in spu_software_single_step when target_read_memory returns 1. It must be wrong. That patch changes it to throwing an error. Note that I choose to throw error because I find the code in the end of spu_software_single_step throws errors. gdb: 2016-03-18 Yao Qi <yao.qi@linaro.org> * spu-tdep.c (spu_software_single_step): Throw error when target_read_memory fails.
2016-03-18Check lwp_signal_can_be_delivered for enqueue/dequeue pending signalsYao Qi2-10/+21
The enqueue and dequeue signals in linux_resume_one_lwp_throw use one condition and its inverted one. This patch is to move the condition into a function lwp_signal_can_be_delivered, so that the next patch can change the condition in one place. gdb/gdbserver: 2016-03-18 Yao Qi <yao.qi@linaro.org> * linux-low.c (lwp_signal_can_be_delivered): New function. (linux_resume_one_lwp_throw): Use lwp_signal_can_be_delivered.
2016-03-18Set signal to 0 after enqueue_pending_signalYao Qi2-17/+20
Today, we enqueue signal in linux_resume_one_lwp_throw, but set variable 'signal' many lines below with the comment /* Postpone any pending signal. It was enqueued above. */ signal = 0; I feel difficult to associate code across many lines, and we should move the code close to enqueue_pending_signal call. This is what this patch does in general. After this change, variable 'signal' is set to zero very early, so the 'signal' value in the following debugging message makes no sense, so I remove it from the debugging message. The function returns early if lwp->status_pending_p is true, so 'signal' value in the debugging message doesn't matter, AFAICS. Also, I move one debugging message several lines below to make it close the real ptrace call, if (debug_threads) debug_printf ("Resuming lwp %ld (%s, signal %d, stop %s)\n", lwpid_of (thread), step ? "step" : "continue", signal, lwp->stop_expected ? "expected" : "not expected"); so that the debugging message can reflect what GDBserver does. This is a code refactor and only debugging messages are affected. gdb/gdbserver: 2016-03-18 Yao Qi <yao.qi@linaro.org> * linux-low.c (linux_resume_one_lwp_throw): Set 'signal' to 0 if signal is enqueued. Remove 'signal' from one debugging message. Move one debugging message to some lines below. Remove code setting 'signal' to 0.
2016-03-18Remove redundant WIFSTOPPED checkYao Qi2-1/+6
WIFSTOPPED is checked linux_wstatus_maybe_breakpoint, so WIFSTOPPED in "WIFSTOPPED (wstat) && linux_wstatus_maybe_breakpoint (wstat)" is redundant. This patch removes WIFSTOPPED check. gdb/gdbserver: 2016-03-18 Yao Qi <yao.qi@linaro.org> * linux-low.c (linux_low_filter_event): Remove redundant WIFSTOPPED check together with linux_wstatus_maybe_breakpoint.
2016-03-18Remove spurious empty line in changelog entry.Nick Clifton1-0/+5
2016-03-18Fix generation of as.1 manual page so that it can be converted to DocBook ↵Nick Clifton3-1/+8
format. gas * doc/as.texinfo: Place the target specific command line options into their own man page section. etc * texi2pod.pl: Add TARGET to the list of recognised man page sections.
2016-03-18Ensure that the .rdata_pseudo_runtime_reloc sections are not discarded by ↵Awson3-2/+9
gabage collection. PR 19531 * scripttempl/pe.sc (.rdata_runtime_pseudo_reloc): Always KEEP this section. * scripttempl/pep.sc (.rdata_runtime_pseudo_reloc): Likewise.
2016-03-18Fix possible failure in the AVR linker tests.Senthil Kumar Selvaraj9-5/+114
* ld-avr/gc-section-debugline.d: Relax regex check for CU.
2016-03-18Add simulation of MUL and NEG instructions to AArch64 simulator.Nick Clifton5-223/+341
* cpustate.c: Remove spurious spaces from TRACE strings. Print hex equivalents of floats and doubles. Check element number against array size when accessing vector registers. * memory.c: Trace memory reads when --trace-memory is enabled. Remove float and double load and store functions. * memory.h (aarch64_get_mem_float): Delete prototype. (aarch64_get_mem_double): Likewise. (aarch64_set_mem_float): Likewise. (aarch64_set_mem_double): Likewise. * simulator (IS_SET): Always return either 0 or 1. (IS_CLEAR): Likewise. (fldrs_pcrel): Load and store floats using 32-bit memory accesses and doubles using 64-bit memory accesses. (fldrd_pcrel, fldrs_wb, fldrs_abs, fldrs_scale_ext): Likewise. (fldrd_wb, fldrd_abs, fsturs, fsturd, fldurs, fldurd): Likewise. (fstrs_abs, fstrs_wb, fstrs_scale_ext, fstrd_abs): Likewise. (fstrd_wb, fstrd_scale_ext, store_pair_float): Likewise. (store_pair_double, load_pair_float, load_pair_double): Likewise. (do_vec_MUL_by_element): New function. (do_vec_op2): Call do_vec_MUL_by_element. (do_scalar_NEG): New function. (do_double_add): Call do_scalar_NEG.
2016-03-18Automatic date update in version.inGDB Administrator1-1/+1
2016-03-17Add mips and s390 build targets for gold.Cary Coutant3-2/+7
* configure.ac: Add mips and s390 to the gold target check. * configure: Regenerate.
2016-03-17Add MIPS-64 support.Vladimir Radosavljevic2-635/+1413
gold/ * mips.cc (enum Special_relocation_symbol): New enum type. (is_readonly_section): New function. (eh_reloc): Likewise. (Mips_got_entry::is_section_symbol_): New member. (Mips_got_entry::is_section_symbol): New method. (Mips_got_info::record_local_got_symbol): Add is_section_symbol argument. (Mips_relobj::mips_elf_options_section_name): New method. (Mips_output_data_got::record_local_got_symbol): Add is_section_symbol argument, and pass it to Mips_got_info::record_local_got_symbol. (Mips_output_data_got::got_offset): Add addend argument, and pass it to Relobj::local_got_offset. (struct Mips_output_reloc_writer): New type. (class Mips_output_data_reloc): New class. (Mips_output_data_plt::Reloc_section): Change type to Mips_output_data_reloc. (Target_mips::Reloc_section): Likewise. (Mips_reloc_types::get_r_addend): Remove unsigned from return type. (Mips_classify_reloc::get_r_type2): New method. (Mips_classify_reloc::get_r_type3): Likewise. (Mips_classify_reloc::get_r_ssym): Likewise. (Target_mips::Reloca_section): Remove. (Relocate::should_apply_static_reloc): Rename from should_apply_r_mips_32_reloc. (Target_mips::copy_reloc): Replace Reltype parameter with r_type and r_offset. (Mips_relocate_functions::Valtype): New type. (Mips_relocate_functions::Valtype64): New type. (Mips_relocate_functions::check_overflow): New method. (Mips_relocate_functions::mips_reloc_unshuffle): Move to public interface. (Mips_relocate_functions::mips_reloc_shuffle): Likewise. (Mips_relocate_functions::rel16): Add support for resolving relocations for Mips64. (Mips_relocate_functions::rel32): Likewise. (Mips_relocate_functions::reljalr): Likewise. (Mips_relocate_functions::relpc32): Likewise. (Mips_relocate_functions::rel26): Likewise. (Mips_relocate_functions::relpc16): Likewise. (Mips_relocate_functions::relmicromips_pc7_s1): Likewise. (Mips_relocate_functions::relmicromips_pc10_s1): Likewise. (Mips_relocate_functions::relmicromips_pc16_s1): Likewise. (Mips_relocate_functions::do_relhi16): Likewise. (Mips_relocate_functions::do_relgot16_local): Likewise. (Mips_relocate_functions::rello16): Likewise. (Mips_relocate_functions::relgot): Likewise. (Mips_relocate_functions::relgotpage): Likewise. (Mips_relocate_functions::relgotofst): Likewise. (Mips_relocate_functions::relgot_hi16): Likewise. (Mips_relocate_functions::relgot_lo16): Likewise. (Mips_relocate_functions::relgprel): Likewise. (Mips_relocate_functions::relgprel32): Likewise. (Mips_relocate_functions::tlsrelhi16): Likewise. (Mips_relocate_functions::tlsrello16): Likewise. (Mips_relocate_functions::tlsrel32): Likewise. (Mips_relocate_functions::relsub): Likewise. (Mips_relocate_functions::releh): New method. (Mips_relocate_functions::rel64): Likewise. (Mips_got_info::record_local_got_symbol): Add is_section_symbol and pass it to Mips_got_entry. (Mips_got_info::add_local_entries): Pass addend argument to code functions, and for STT_SECTION symbols call add_symbolless_local_addend. (Mips_got_info::add_tls_entries): Pass addend argument to code functions. (Mips_relobj::do_read_symbols): Read gp value that was used to create object. (Mips_output_data_plt::plt_entry): Remove opcode from l[wd] instruction. Opcode for instruction will be selected later. (Target_mips::gc_process_relocs): Add case for SHT_RELA. (Target_mips::scan_relocatable_relocs): Likewise. (Target_mips::emit_relocs_scan): Likewise. (Target_mips::relocate_relocs): Likewise. (Target_mips::do_finalize_sections): Skip objects for merging processor specific flags in which all input sections will be discarded. (mips_get_size_for_reloc): Add case for R_MIPS_EH. (Target_mips::Scan::get_reference_flags): Likewise. (Target_mips::relocate_special_relocatable): Call rel26 method with calculate_only and calculated_value arguments. (Target_mips::Scan::local): Add case for R_MIPS_EH. Don't create a dynamic relocation against a readonly sections, and pass is_section_symbol to Mips_got_info::record_local_got_symbol. (Target_mips::Scan::global): Add case for R_MIPS_EH. Don't create a dynamic relocation against a readonly sections, and pass r_type and r_offset to Target_mips::copy_reloc. (Target_mips::Relocate::relocate): Add support for resolving relocations for Mips64. (Target_mips::mips_info): Add case for Mips64 default dynamic linker name. (Target_selector_mips): Correct emulation names.
2016-03-17Add missing Mips_output_data_la25_stub::do_print_to_mapfile.Vladimir Radosavljevic2-0/+10
gold/ * mips.cc (class Mips_output_data_la25_stub): Add do_print_to_mapfile function.
2016-03-17Fix problem with --emit-relocs for Mips-32.Vladimir Radosavljevic2-1/+6
gold/ * mips.cc (Mips_classify_reloc::put_r_info): Call 32bit version of elf_r_info.
2016-03-17Suggest running gdbserver for a PID in containerJan Kratochvil2-1/+6
currently gdb -p <pid from a container> will print: warning: Target and debugger are in different PID namespaces; thread lists and other data are likely unreliable It correctly states the problem but it does not say how to solve it. Originally I wanted to suggest also the Docker "-p 1234:1234" parameter but I see the containers are more general topic than just Docker (even LxC etc.). According to Gary future GDBs should be able to work even without gdbserver. But currently gdbserver is still required. gdb/ChangeLog 2016-03-17 Jan Kratochvil <jan.kratochvil@redhat.com> * linux-thread-db.c (check_pid_namespace_match): Extend the message.
2016-03-17PR remote/19496, timeout in forking-threads-plus-bkptPedro Alves3-18/+34
This patch addresses a failure in gdb.threads/forking-threads-plus-breakpoint.exp: FAIL: gdb.threads/forking-threads-plus-breakpoint.exp: cond_bp_target=1: detach_on_fork=on: inferior 1 exited (timeout) Cause: A fork event was reported to GDB before GDB knew about the parent thread, followed immediately by a breakpoint event in a different thread. The parent thread was subsequently added via remote_notice_new_inferior in process_stop_reply, but when the thread was added the thread_info.state was set to THREAD_STOPPED. The fork event was then handled correctly, but when the fork parent was resumed via a call to keep_going, the state was unchanged. The breakpoint event was then handled, which caused all the non-breakpoint threads to be stopped. When the breakpoint thread was resumed, all the non-breakpoint threads were resumed via infrun.c:restart_threads. Our old fork parent wasn't restarted, because it still had thread_info.state set to THREAD_STOPPED. Ultimately the program under debug hung waiting for a pthread_join while the old fork parent was stopped forever by GDB. Fix: Since this is non-stop, then the bug is that the thread should have been added in THREAD_RUNNING state. Consider that infrun may be pulling target events out of the target_ops backend into its own event queue, but, not process them immediately. E.g., infrun may be stopping all threads temporarily for a step-over-breakpoint operation for thread A (stop_all_threads). The waitstatus of all threads is thus left pending in the thread structure (save_status), including the fork event of thread B. Right at this point, if the user does "info threads", that should show thread B (the fork parent) running, not stopped, even if internally, gdb is holding it paused for a little bit. Thus if in non-stop mode, always add new threads in the external user-visible THREAD_RUNNING state. Change remote_notice_new_inferior to accept the internal executing state of the thread instead, with EXECUTING set to 1 when we discover a thread that is running on the target (such as through remote_update_thread_list), and 0 when the thread is really paused (such as when we see a stop reply). Tested on x86_64 Linux and Nios II Linux target with x86 Linux host. gdb/ChangeLog: 2016-03-17 Pedro Alves <palves@redhat.com> Don Breazeal <donb@codesourcery.com> PR remote/19496 * infcmd.c (notice_new_inferior): Use the 'leave_running' argument instead of checking the 'non_stop' global. * remote.c (remote_add_thread): New parameter 'executing'. Use it to set the new thread's executing state. (remote_notice_new_inferior): Rename parameter 'running' to 'executing'. Always set the thread state to THREAD_RUNNING in non-stop mode, and to THREAD_STOPPED in all-stop mode. Pass EXECUTING to remote_add_thread and notice_new_inferior. (remote_update_thread_list): Update to pass executing state, not running state.
2016-03-17S390: Add syscall info for syscalls up to 374Andreas Arnez3-0/+56
Represent new Linux syscalls for s390 and s390x in GDB's syscall info. Add the syscalls from 355 (userfaultfd) up to 374 (mlock2) as well as the previously reserved NUMA syscalls 268-270, 287, and 310. gdb/ChangeLog: * syscalls/s390-linux.xml: Add NUMA syscalls and new syscalls up to 374. * syscalls/s390x-linux.xml: Likewise.
2016-03-17S390: Fix output path for s390-multiarch test caseAndreas Arnez2-5/+9
Since test artifacts are organized in a directory hierarchy, the s390-multiarch test case is not executed correctly any more. This is because it uses an obsolete way of constructing the output paths. This fix invokes standard_testfile instead. gdb/testsuite/ChangeLog: * gdb.arch/s390-multiarch.exp: Use standard_testfile instead of maintaining separate logic for constructing the output path.
2016-03-17linux-record: Simplify with record_mem_at_reg()Andreas Arnez2-414/+170
The function record_linux_system_call() often records a memory area whose address is contained in a register. So far this required two function calls: one for fetching the register value, and another one for recording the memory area. These two function calls are now merged into a new local helper function, and all occurrences are adjusted. This reduces the source code and makes it more readable. gdb/ChangeLog: * linux-record.c (record_mem_at_reg): New helper function. (record_linux_system_call): Exploit new helper function where applicable.
2016-03-17linux-record.c: Fix whitespace issuesAndreas Arnez2-949/+954
This patch changes whitespace only, fixing whitespace issues in linux-record.c. gdb/ChangeLog: * linux-record.c: Fix whitespace issues; tabify, remove trailing spaces.
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