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2018-10-31Merge autoconf / automake update changes from GCC.Joseph Myers8-30/+134
Top level: Merge from GCC: PR bootstrap/82856 * multilib.am: New file. From automake. config: Merge from GCC: PR bootstrap/82856 * math.m4, tls.m4: Use AC_LANG_SOURCE. zlib: Merge from GCC. PR bootstrap/82856 * Makefile.am: Include multilib.am. * Makefile.in: Regenerate.
2018-10-31[gdb/testsuite] get_valueof: Don't output value in test nameTom de Vries2-1/+5
The get_valueof outputs the value it has read as part of the test name. This causes test names to vary from run to run, and adds some noise when diffing test results. e.g.: -PASS: gdb.guile/scm-ports.exp: buffered: get valueof "$sp" (140737488343920) +PASS: gdb.guile/scm-ports.exp: buffered: get valueof "$sp" (140737488343968) -PASS: gdb.guile/scm-ports.exp: unbuffered: get valueof "$sp" (140737488343920) +PASS: gdb.guile/scm-ports.exp: unbuffered: get valueof "$sp" (140737488343968) This patch removes that, since it's probably not very useful. Tested on x86_64-linux. 2018-10-31 Tom de Vries <tdevries@suse.de> * lib/gdb.exp (get_valueof): Don't output read value in test name.
2018-10-31Don't create got section while processing TLS Local Exec relocations.Renlin Li2-3/+5
For Local Exec TLS model, the offset of the variable from the thread pointer can be computed at static link time. This doesn't require GOT indirection. The initial change is a bad fix for a problem during TLS GD -> LE relaxation. The proper fix is to check whether _GLOBAL_OFFSET_TABLE_ is referenced, create got section if yes. And the fix is already in the repository. bfd/ 2018-10-31 Renlin Li <renlin.li@arm.com> * elfnn-aarch64.c (elfNN_aarch64_check_relocs): Don't create got section for Local Exec TLS model.
2018-10-31[PowerPC] Include nat/linux-ptrace.h in native targetsPedro Franco de Carvalho4-0/+10
Patch "[PowerPC] Add support for PPR and DSCR" used PTRACE_GETREGSET/SETREGSET without including the fallback definitions from "nat/linux-ptrace.h". Include this header to avoid breaking builds in systems that don't define them. gdb/ChangeLog: 2018-10-31 Pedro Franco de Carvalho <pedromfc@linux.ibm.com> * ppc-linux-nat.c: Include nat/linux-ptrace.h. gdb/gdbserver/ChangeLog: 2018-10-31 Pedro Franco de Carvalho <pedromfc@linux.ibm.com> * linux-ppc-low.c: Include nat/linux-ptrace.h.
2018-10-31gdb: Handle ICC's unexpected void return typeAndrew Burgess6-6/+222
I encountered a binary compiled with Intel's C Compiler (ICC) version 14.0.5.212, which seemed to contain some non-standard DWARF. The DWARF spec (V5 3.3.2) says: Debugging information entries for C void functions should not have an attribute for the return type. However, what I observed in the DWARF from this ICC compiled binary was this: ... <0><857>: Abbrev Number: 1 (DW_TAG_compile_unit) <858> DW_AT_comp_dir : (indirect string, offset: 0x48d): /tmp/ <85c> DW_AT_language : 1 (ANSI C) <85d> DW_AT_name : (indirect string, offset: 0x77c): filename.c <861> DW_AT_producer : (indirect string, offset: 0x520): Intel(R) C Intel(R) 64 Compiler ... <865> DW_AT_low_pc : 0x4378d0 <86d> DW_AT_high_pc : 0x4378f0 <875> DW_AT_stmt_list : 0xa37 ... <1><7ea>: Abbrev Number: 2 (DW_TAG_base_type) <7eb> DW_AT_byte_size : 0 <7ec> DW_AT_encoding : 5 (signed) <7ed> DW_AT_name : (indirect string, offset: 0x58f): void ... <1><7f1>: Abbrev Number: 3 (DW_TAG_subprogram) <7f2> DW_AT_decl_line : 268 <7f4> DW_AT_decl_column : 30 <7f5> DW_AT_decl_file : 1 <7f6> DW_AT_type : <0x7ea> <7fa> DW_AT_prototyped : 1 <7fb> DW_AT_name : (indirect string, offset: 0x761): function_foo <7ff> DW_AT_MIPS_linkage_name: (indirect string, offset: 0x761): function_foo <803> DW_AT_low_pc : 0x4378a0 <80b> DW_AT_high_pc : 0x4378d0 <813> DW_AT_external : 1 ... So function 'function_foo' has void return type, but still has a DW_AT_type attribute for a 0 sized type called void. What was found was that when the 'finish' command was used to leave 'function_foo', GDB would crash. The problem is that in infcmd.c:print_return_value GDB tries to filter out void return types, by looking for the TYPE_CODE_VOID, this fails for the 'void' type as it has code TYPE_CODE_INT and GDB then tries to print the 'void' type. This eventually ends in a call to valprint.c:maybe_negate_by_bytes, however, the len (length) of the value being negated is 0, which is not detected or expected by this code, and invalid memory accesses occur, some of which might cause GDB to crash. The above DWARF was seen on version 14.0.5.212 of ICC. I have also tested ICC versions 18.0.2.199 and 17.0.7.259, on both of these versions, the DW_AT_type on the DW_TAG_subprogram has been removed, bringing ICC inline with the DWARF standard, and with the DWARF produced by GCC. I only have limited access to these specific versions of ICC so I am unable to get more specific details for when the generated DWARF became non-standard or when it was changed to be more inline with the DWARF standard. Further testing revealed additional places where ICC produced 'void' related DWARF that GDB struggles with. When I compiled code that contained a function with this signature: void funcx (void *arg); on ICC 17/18, I got the following DWARF (notice the void return type is now gone): ... <1><32>: Abbrev Number: 2 (DW_TAG_subprogram) <33> DW_AT_decl_line : 2 <34> DW_AT_decl_file : 1 <35> DW_AT_prototyped : 1 <36> DW_AT_name : (indirect string, offset: 0xc5): funcx <3a> DW_AT_MIPS_linkage_name: (indirect string, offset: 0xc5): funcx <3e> DW_AT_low_pc : 0x6dc <46> DW_AT_high_pc : 0x703 <4e> DW_AT_external : 1 <2><4f>: Abbrev Number: 3 (DW_TAG_formal_parameter) <50> DW_AT_decl_line : 2 <51> DW_AT_decl_file : 1 <52> DW_AT_type : <0x6a> <56> DW_AT_name : arg <5a> DW_AT_location : 2 byte block: 76 70 (DW_OP_breg6 (rbp): -16) ... <1><6a>: Abbrev Number: 5 (DW_TAG_pointer_type) <6b> DW_AT_type : <0x6f> <1><6f>: Abbrev Number: 6 (DW_TAG_base_type) <70> DW_AT_byte_size : 0 <71> DW_AT_encoding : 5 (signed) <72> DW_AT_name : (indirect string, offset: 0xcb): void ... However, the function argument 'arg' does still reference a 'void' type. This case doesn't seem as obviously non-standard as the previous one, but I think that the DWARF standard (V5 5.2) does suggest that the above is not the recommended approach. If we compare to the DWARF generated by GCC 7.3.1: ... <1><68>: Abbrev Number: 5 (DW_TAG_subprogram) <69> DW_AT_external : 1 <69> DW_AT_name : (indirect string, offset: 0x221): funcx <6d> DW_AT_decl_file : 1 <6e> DW_AT_decl_line : 2 <6f> DW_AT_prototyped : 1 <6f> DW_AT_low_pc : 0x400487 <77> DW_AT_high_pc : 0x22 <7f> DW_AT_frame_base : 1 byte block: 9c (DW_OP_call_frame_cfa) <81> DW_AT_GNU_all_call_sites: 1 <81> DW_AT_sibling : <0xa0> <2><85>: Abbrev Number: 6 (DW_TAG_formal_parameter) <86> DW_AT_name : arg <8a> DW_AT_decl_file : 1 <8b> DW_AT_decl_line : 2 <8c> DW_AT_type : <0xa0> <90> DW_AT_location : 2 byte block: 91 58 (DW_OP_fbreg: -40) ... <1><a0>: Abbrev Number: 7 (DW_TAG_pointer_type) <a1> DW_AT_byte_size : 8 ... Here we see that the DW_TAG_pointer_type doesn't reference any further type. This also seems out of line with the DWARF standard (which I think recommends using a DW_TAG_unspecified_type entry), however GDB does handle the GCC generated DWARF better. If we look at how GDB handles the DWARF from GCC, then we see this: (gdb) print *arg Attempt to dereference a generic pointer. While on the current HEAD of master dereferencing arg causes undefined behaviour which will likely crash GDB (for the same reason as was described above for the 'finish' case). On earlier versions of GDB the ICC DWARF would cause this: (gdb) print *arg $1 = 0 In this patch both the return type, and general variable/parameter type handling is fixed by transforming the synthetic void entries in the DWARF, the ones that look like this: <1><6f>: Abbrev Number: 6 (DW_TAG_base_type) <70> DW_AT_byte_size : 0 <71> DW_AT_encoding : 5 (signed) <72> DW_AT_name : (indirect string, offset: 0xcb): void into GDB's builtin void type. My criteria for performing the fix are: 1. Binary produced by any version of ICC, 2. We're producing an integer type, 3. The size is 0, and 4. The name is "void". I ignore the signed / unsigned nature of the integer. Potentially we could drop the ICC detection too, this should be a reasonably safe transformation to perform, however, I'm generally pretty nervous when it comes to modifying how the DWARF is parsed so, for now, I have restricted this to ICC only. I also added an assertion to maybe_negate_by_bytes. This is nothing to do with the actual fix, but should detect incorrect use of this function in the future, without relying on undefined behaviour to crash GDB. I added a new test that makes use the of the testsuite's DWARF generator. As it is tricky to create target independent tests that pass function parameters using the DWARF generator (as specifying the argument location is target specific) I have instead made use of a global variable void*. This still shows the issue. We already have a predicate in the DWARF parser to detect versions of ICC prior to 14, however, this issue was spotted on a later version. As a result I've added a new predicate that is true for any version of ICC. gdb/ChangeLog: * dwarf2read.c (struct dwarf2_cu): Add producer_is_icc field. (producer_is_icc): New function. (check_producer): Set producer_is_icc field on dwarf2_cu. (dwarf2_init_integer_type): New function. (read_base_type): Call dwarf2_init_integer_type instead of init_integer_type in all cases. (dwarf2_cu::dwarf2_cu): Initialise producer_is_icc field. * valprint.c (maybe_negate_by_bytes): Add an assertion that the LEN is greater than 0. gdb/testsuite/ChangeLog: * gdb.dwarf2/void-type.c: New file. * gdb.dwarf2/void-type.exp: New file.
2018-10-31[GAS][ARM] Fix ARMv8.1 AdvSIMD testismAndre Vieira2-1/+4
This test never used to test the output of objdump as the old 'error-output' check would exit after verifying the output in stdout and stderr from the assembler. Given the use of warning_output now, the objdump runs and expects its output to be verified. Assuming the correct disassembly of these instructions is tested elsewhere given we never tested them here, this patch removes the objdump run. gas/ChangeLog 2018-10-31 Andre Vieira <andre.simoesdiasvieira@arm.com> * testsuite/gas/arm/armv8-a+rdma-warning.d: Remove objdump execution.
2018-10-31[GAS][ARM] Fix UDF testismAndre Vieira2-23/+23
The old test never checked the objdump output since the 'error-output' directive would exit and thus never run objdump. When this test was changed to adhere to use the new warning_output we started to run objdump. The expected objdump output was old and had bitrotten, this fixes the layout, as the "disassembly" itself did not change. gas/ChangeLog 2018-10-31 Andre Vieira <andre.simoesdiasvieira@arm.com> * testsuite/gas/arm/udf.d: Update expected output.
2018-10-31[GAS][ARM] Fix failing Armv1 testAndre Vieira2-18/+23
This test has been failing for a while and it could be argued that since we started testing 'arm7t' here (and not Armv1) the test itself was wrong. So I changed the assembly to Armv1. Given the changes to objdump when "disassembling all" it seemed like a good idea to force the disassembly to 'armv2' instead and actually accept the disassembly of the 26-bit Architecture variants of tst, teq, cmn and cmp. gas/ChangeLog 2018-10-31 Andre Vieira <andre.simoesdiasvieira@arm.com> * testsuite/gas/arm/armv1.d: Assemble for Armv1 and disassemble for Armv2.
2018-10-31Automatic date update in version.inGDB Administrator1-1/+1
2018-10-30[src/erc32] Use ncurses instead of termcap on Cygwin tooJoel Sherrill3-10/+15
This removes a Cygwin-specific libtermcap hack that was dependent on the presence of one of the multiple alternative libraries. The one it was hard-coded to pick isn't included with Cygwin anymore. According to Corinna, libtermcap was removed from Cygwin a long time ago, and libncurses is used in Cygwin for a long time too. The fix is to make Cygwin use the same autoconf code to figure out the correct lib as any other target. sim/erc32/Changelog: 2018-10-30 Joel Sherrill <joel@rtems.org> * configure.ac: Remove the Cygwin-specific libtermcap.a hack and use the standard logic to determine which library to use. * configure: Regenerate.
2018-10-30Check return value of bfd_initTom Tromey2-1/+9
Alan recently added a way for BFD library users to check whether they were in fact loading a compatible version of BFD: https://sourceware.org/ml/binutils/2018-10/msg00198.html It seemed reasonable to me that gdb should do this check as well, in case someone is dynamically linking against BFD. Simon pointed out that an earlier version of the patch would cause a gdb crash if the test failed. This version works around this by lowering the call to bfd_init and adding a comment explaining where 'error' can safely be called in captured_main_1. gdb/ChangeLog 2018-10-30 Tom Tromey <tom@tromey.com> * main.c (captured_main_1): Check return value of bfd_init.
2018-10-29Remove relational operators from common/offset-type.hSergio Durigan Junior2-17/+6
This patch is a follow-up of: https://sourceware.org/ml/gdb-patches/2018-10/msg00601.html It removes the declaration of the relational operators for common/offset-type.h. As it turns out, these overloads are not being used when a new offset type is declared, because, according to Pedro Alves: I think the functions aren't called because they are templates, and thus the built-in (non-template) versions take precedence. If you make them non-templates, then they should be called. But, the built-ins are fine, so yeah, we can just remove the custom definitions. The patch also adjusts the comments on the code. No regressions introduced. gdb/ChangeLog: 2018-10-29 Sergio Durigan Junior <sergiodj@redhat.com> * common/offset-type.h (DEFINE_OFFSET_REL_OP): Delete. Adjust comments.
2018-10-30Automatic date update in version.inGDB Administrator1-1/+1
2018-10-29Revert "GDBSERVER: Listen on a unix domain (instead of TCP) socket if ↵Simon Marchi4-126/+47
requested." This reverts commit f19c7ff839d7a32ebb48482ae7d318fb46ca823d.
2018-10-29Revert "GDB: Document the unix::/path/to/socket of remote connection."Simon Marchi1-23/+1
This reverts commit 6d0f8100c1a3053c967bec716e34b65dd054cc39.
2018-10-29Revert "GDB: Fix documentation for invoking GDBSERVER"Simon Marchi1-44/+16
This reverts commit 0a163825df5e98ad55de13eb3d3534d875943047.
2018-10-29Revert "GDB: Remote target can now accept the form unix::/path/to/socket."Simon Marchi2-19/+4
This reverts commit 88f5cc8cf8606478832c7d0d7b74755f3f625015.
2018-10-29Revert "GDB: Only build for "unix:" connections if AF_LOCAL is supported."Simon Marchi5-44/+0
This reverts commit 98a17ece013cb94cd602496b9efb92b8816b3953.
2018-10-29Provide get_shell declaration in procfs.cRainer Orth2-4/+9
The Solaris build is currently broken: /vol/src/gnu/gdb/hg/master/dist/gdb/procfs.c: In member function ‘virtual void procfs_target::create_inferior(const char*, const string&, char**, int)’: /vol/src/gnu/gdb/hg/master/dist/gdb/procfs.c:3038:28: error: ‘get_shell’ was not declared in this scope const char *shell_file = get_shell (); ^~~~~~~~~ /vol/src/gnu/gdb/hg/master/dist/gdb/procfs.c:3038:28: note: suggested alternative: ‘getusershell’ const char *shell_file = get_shell (); ^~~~~~~~~ getusershell The following patch fixes this. Tested on amd64-pc-solaris2.11. 2018-10-29 Rainer Orth <ro@CeBiTec.Uni-Bielefeld.DE> * procfs.c: Include common/pathstuff.h.
2018-10-29Report scripts and libraries searched for ld --traceAlan Modra6-14/+27
The idea of this change is to make -t output useful for users wanting to package all the object files involved in linking for a bug report. Something like the following should do the trick. gcc hello.c -save-temps -Wl,-t | xargs realpath | sort | uniq > files tar cJf test.tar.xz `cat files` * ldlang.c (load_symbols): When -t, print file names for script files and archives. * ldmain.c (trace_files): Make an int. (add_archive_element): Print archive elements only with multiple -t options, or when archive is thin. * ldmain.h (trace_files): Update. * ldmisc.c (vfinfo): Don't print both original path and path in sysroot. * lexsup.c (parse_args <t>): Increment trace_files.
2018-10-29Remove some ld --trace outputAlan Modra2-3/+9
This output really belongs in ld --verbose. * ldmain.c (main): Print emulation mode and "deleting executable" for --verbose, not --trace. (add_archive_element): Only print "no new IR symbols" for --verbose.
2018-10-29Simplify --sysroot=/Alan Modra2-9/+17
Prepending '/' to absolute paths doesn't gain us much, and results in the current implementation of --trace emitting silly path-in-sysroot output, eg. /lib/ld-linux-x86-64.so.2 (//lib/ld-linux-x86-64.so.2) * ldmain.c (get_sysroot): Return "" for "--sysroot=/".
2018-10-29Move struc-symbol.h to symbols.cAlan Modra31-326/+353
This file was never supposed to be widely used. The fact that it has found its way into many gas files led to bugs, typically when code expecting a symbolS* to point at a struct symbol is presented with a struct local_symbol. Also, commit 158184ac9e changed these structs in 2012 but didn't catch all places where symbol bsym was being used to test for a local_symbol. * Makefile.am (HFILES): Delete struc-symbol.h. * doc/internals.texi: Delete struc-symbol.h reference and out of date local symbol description. * struc-symbol.h: Delete. Move contents to.. * symbols.c: ..here. (symbol_on_chain, symbol_symbolS): New functions. * symbols.h (symbol_on_chain, symbol_symbolS): Declare. * cgen.c: Don't #include struc-symbol.h. (gas_cgen_parse_operand): Don't test for local_symbol using bsym, instead call symbol_symbolS. Use symbol_get_bfdsym. (weak_operand_overflow_check, make_right_shifted_expr): Use symbol accessors. * config/obj-coff.c: Don't #include struc-symbol.h. (GET_FILENAME_STRING): Delete. * config/obj-elf.c: Don't #include struc-symbol.h. (elf_file_symbol): Use symbol accessors. (elf_adjust_symtab): Call symbol_on_chain. * config/obj-evax.c: Don't #include struc-symbol.h. * config/tc-nds32.c: Likewise. * config/tc-rl78.c: Likewise. * config/tc-rx.c: Likewise. * config/tc-alpha.c: Likewise. (add_to_link_pool, s_alpha_comm): Use symbol accessors. * config/tc-arc.c: Don't #include struc-symbol.h. (arc_check_relocs): Use symbol accessors, testing gas symbol section rather than bfd symbol section. * config/tc-avr.c: Don't #include struc-symbol.h. (avr_patch_gccisr_frag): Use symbol accessors. * config/tc-bfin.c: Don't #include struc-symbol.h. (bfin_loop_beginend): Use symbol accessors. * config/tc-csky.c: Don't #include struc-symbol.h. (v2_work_movih, v2_work_ori): Use symbol accessors. Check for absolute symbol as well as O_constant. * config/tc-riscv.c: Don't #include struc-symbol.h. (riscv_pre_output_hook): Use symbol accessors. * config/tc-s390.c: Don't #include struc-symbol.h. (s390_literals): Use symbol accessors. * config/tc-score.c (s3_build_la_pic, s3_build_lwst_pic): Use symbol accessors. (s3_relax_branch_inst16, s3_relax_cmpbranch_inst32): Don't test symbol bsym. * config/tc-score7.c: Don't #include struc-symbol.h. (s7_build_la_pic, s7_build_lwst_pic): Use symbol accessors. (s7_b32_relax_to_b16): Don't test symbol bsym. * config/tc-sh.c: Don't #include struc-symbol.h. (insert_loop_bounds): Use symbol accessors. (sh_frob_section): Remove bogus symbol canonicalization. * config/tc-tic54x.c: Don't #include struc-symbol.h. (tic54x_bss): Use symbol accessors. * config/tc-tilegx.c: Don't #include struc-symbol.h. (emit_tilegx_instruction, tilegx_parse_name): Use symbol accessors. * config/tc-tilepro.c: Don't #include struc-symbol.h. (emit_tilepro_instruction, tilepro_parse_name): Use accessors. * config/tc-xtensa.c: Don't #include struc-symbol.h. (xg_assemble_vliw_tokens): Use symbol accessors. (xg_order_trampoline_chain): Likewise. * ehopt.c: Don't #include struc-symbol.h. (check_eh_frame): Correct local symbol test. Use symbol accessors. * write.c: Don't #include struc-symbol.h. (create_note_reloc, maybe_generate_build_notes): Use symbol accessors. * Makefile.in: Regenerate. * po/POTFILES.in: Regenerate.
2018-10-29ld -r script fixesAlan Modra16-35/+58
For ld -r, we generally set the VMA of sections to zero. This is done to make the output of ld -r most similar to that output by the assembler, which generally has sections starting at VMA zero. In some cases that covers for backend bugs which would mis-handle relocatable object files with non-zero section VMAs. This patch fixes a few sections that didn't have zero VMAs for ld -r. A missing zero on .note.gnu.build-id and .eh_frame_hdr doesn't matter much since these are linker generated symbols only output on final link, but it's good to be consistent. * Makefile.am (ei386beos.c, ei386go32.c): Correct dependencies. * Makefile.in: Regenerate. * scripttempl/elf.sc (.note.gnu.build-id, .eh_frame_hdr): Set address with ${RELOCATING-0}. * scripttempl/arclinux.sc: Likewise. * scripttempl/armbpabi.sc: Likewise. * scripttempl/avr.sc: Likewise. * scripttempl/elf64hppa.sc: Likewise. * scripttempl/elf_chaos.sc: Likewise. * scripttempl/elfarc.sc: Likewise. * scripttempl/elfxtensa.sc: Likewise. * scripttempl/mep.sc: Likewise. * scripttempl/nds32elf.sc: Likewise. * scripttempl/pru.sc: Likewise. * scripttempl/elf32msp430.sc: Likewise, and for other sections. * scripttempl/epiphany_4x4.sc: Similarly.
2018-10-29GDB: Only build for "unix:" connections if AF_LOCAL is supported.John Darrington5-0/+44
Commit f19c7ff839d7a32ebb48482ae7d318fb46ca823d added a new member to the prefixes array which included a use of the symbol AF_LOCAL. Unfortunately, not all systems declare this symbol. This change only compiles the "unix:" member if the system knows about AF_LOCAL. gdb/ChangeLog: * configure.ac: New test HAVE_AF_LOCAL * common/netstuff.c (parse_connection_spec) [prefixes]: Only compile "unix:" if HAVE_AF_LOCAL is true. * configure: regenerate. * config.in: regenerate.
2018-10-29Automatic date update in version.inGDB Administrator1-1/+1
2018-10-28gdb/riscv: Add back missing braces in riscv-linux-nat.cAndrew Burgess2-2/+9
In this commit: commit ee67fd7f3f6ca78eede2862e309c0bcf266bbd7e Date: Thu Oct 25 12:03:31 2018 +0100 gdb/riscv: Use correct regnum in riscv_linux_nat_target::fetch_registers I incorrectly removed a set of braces in violation of the GDB coding standard. This commit adds them back. gdb/ChangeLog: * riscv-linux-nat.c (riscv_linux_nat_target::fetch_registers): Add missing braces. No functional change.
2018-10-28Correct ChangeLogAlan Modra1-1/+1
2018-10-28PR23837, Segmentation fault in resolve_symbol_valueAlan Modra2-2/+8
Local symbols don't have a sy_frag field. PR 23837 * config/tc-hppa.c: Don't include struc-symbol.h. (pa_build_unwind_subspace): Call get_symbol_frag rather than referencing sy_frag.
2018-10-28Automatic date update in version.inGDB Administrator1-1/+1
2018-10-27OBVIOUS Use report_unrecognized_option_error in 'demangle' and 'info macro' ↵Philippe Waroquiers3-11/+10
commands. Rather than have some local logic to throw an error for an unrecognized option, use the new cli-utils.h function throwing an error. At the same time, fix some wrong indentation in info_macro_command and fix a small bug in 'demangle' error handling: Without the patch: (gdb) demangle -L c++ abcd Unrecognized option 'c++' to demangle command. Try "help demangle". (gdb) With the patch: (gdb) demangle -L c++ abcd Unrecognized option '-L' to demangle command. Try "help demangle". 2018-10-27 Philippe Waroquiers <philippe.waroquiers@skynet.be> * macrocmd.c (info_macro_command): Use report_unrecognized_option_error to report a bad option and fix indentation. * demangle.c (demangle_command): Use report_unrecognized_option_error to report a bad option and correctly report the bad option.
2018-10-27Cache a copy of the user's shell on macOSTom Tromey2-7/+153
Recent versions of macOS have a feature called System Integrity Protection. Among other things, This feature prevents ptrace from tracing certain programs --- for example, the programs in /bin, which includes typical shells. This means that startup-with-shell does not work properly. This is PR cli/23364. Currently there is a workaround in gdb to disable startup-with-shell when this feature might be in use. This patch changes gdb to be a bit more precise about when startup-with-shell will not work, by checking whether the shell executable is restricted. If the shell is restricted, then this patch will also cause gdb to cache a copy of the shell in the gdb cache directory, and then reset the SHELL environment variable to point to this copy. This lets startup-with-shell work again. Tested on High Sierra by trying to start a program using redirection, and by running startup-with-shell.exp. gdb/ChangeLog 2018-10-27 Tom Tromey <tom@tromey.com> PR cli/23364: * darwin-nat.c (copied_shell): New global. (may_have_sip): Rename from should_disable_startup_with_shell. (copy_shell_to_cache, maybe_cache_shell): New functions. (darwin_nat_target::create_inferior): Update. Use copied_shell.
2018-10-27Do not reopen temporary filesTom Tromey4-29/+65
The current callers of mkostemp close the file descriptor and then re-open it with fopen. It seemed better to me to continue to use the already-opened file descriptor, so this patch rearranges the code a little in order to do so. It takes care to ensure that the files are only unlinked after the file descriptor in question is closed, as before. gdb/ChangeLog 2018-10-27 Tom Tromey <tom@tromey.com> * unittests/scoped_fd-selftests.c (test_to_file): New function. (run_tests): Call test_to_file. * dwarf-index-write.c (write_psymtabs_to_index): Do not reopen temporary files. * common/scoped_fd.h (scoped_fd::to_file): New method.
2018-10-27Use mkostemp, not mkstempTom Tromey19-207/+162
I noticed that gdb could leak file descriptors coming from mkstemp. This patch fixes the problem by importing the gnulib mkostemp instead, and then changing gdb to pass O_CLOEXEC. A small gnulib patch was needed. This has already been accepted upstream. gdb/ChangeLog 2018-10-27 Tom Tromey <tom@tromey.com> * unittests/scoped_mmap-selftests.c (test_normal): Use gdb_mkostemp_cloexec. * unittests/scoped_fd-selftests.c (test_destroy, test_release): Use gdb_mkostemp_cloexec. * gnulib/aclocal-m4-deps.mk, gnulib/aclocal.m4, gnulib/config.in, gnulib/configure, gnulib/import/Makefile.am, gnulib/import/Makefile.in, gnulib/import/m4/gnulib-cache.m4, gnulib/import/m4/gnulib-comp.m4: Update. * gnulib/import/m4/mkostemp.m4: New file. * gnulib/import/m4/mkstemp.m4: Remove. * gnulib/import/mkostemp.c: New file. * gnulib/import/mkstemp.m4: Remove. * gnulib/update-gnulib.sh (IMPORTED_GNULIB_MODULES): Remove mkstemp, add mkostemp. Apply new patch. * gnulib/import/stdlib.in.h: Apply patch. * gnulib/patches/0002-mkostemp-mkostemps-Fix-compilation-error-in-C-mode-o.patch: New file. * dwarf-index-write.c (write_psymtabs_to_index): Use gdb_mkostemp_cloexec. * common/filestuff.h (gdb_mkostemp_cloexec): New function.
2018-10-27Move mkdir_recursive to common/filestuff.cTom Tromey6-108/+165
This moves mkdir_recursive from dwarf-index-cache.c to common/filestuff.c, and also changes it to return a boolean that says whether or not it worked. gdb/ChangeLog 2018-10-27 Tom Tromey <tom@tromey.com> * unittests/mkdir-recursive-selftests.c: New file. * Makefile.in (SUBDIR_UNITTESTS_SRCS): Add unittests/mkdir-recursive-selftests.c. * dwarf-index-cache.c (mkdir_recursive): Move to common/filestuff.c. (index_cache::store): Check return value of mkdir_recursive. (create_dir_and_check, test_mkdir_recursive): Move to new file. (_initialize_index_cache): Don't register test. * common/filestuff.h (mkdir_recursive): Declare. * common/filestuff.c (mkdir_recursive): Move from dwarf-index-cache.c. Return bool.
2018-10-27Move make_temp_filename to common/pathstuff.cTom Tromey4-10/+27
Currently make_temp_filename is a function local to write_psymtabs_to_index. This patch moves it to pathstuff.c so that it can be used from other places in gdb. gdb/ChangeLog 2018-10-27 Tom Tromey <tom@tromey.com> * dwarf-index-write.c (write_psymtabs_to_index): Move make_temp_filename to common/pathstuff.c. * common/pathstuff.h (make_temp_filename): Declare. * common/pathstuff.c (make_temp_filename): New function, moved from dwarf-index-write.c.
2018-10-27Unify shell-finding logicTom Tromey7-28/+36
I noticed several places in gdb that were using getenv("SHELL") and then falling back to "/bin/sh" if it returned NULL. This unifies these into a single function. gdb/ChangeLog 2018-10-27 Tom Tromey <tom@tromey.com> * procfs.c (procfs_target::create_inferior): Use get_shell. * cli/cli-cmds.c (shell_escape): Use get_shell. * windows-nat.c (windows_nat_target::create_inferior): Use get_shell. * common/pathstuff.c (get_shell): New function. * nat/fork-inferior.c (SHELL_FILE, get_startup_shell): Remove. (fork_inferior): Use get_shell. * common/pathstuff.h (get_shell): Declare.
2018-10-27Remove a bunch of usages of gdb_suppress_tests in 'runto_main'.Philippe Waroquiers36-53/+99
In the 'info -q -t' patch series, I started a new test from gdb.threads/threadapply.exp, that uses an obsolete way to do runto_main. This patch changes all occurrences of runto_main using gdb_suppress_tests to use instead fail+return. Note that there are still about 220 occurrences of gdb_suppress_tests but unclear (to me) if these can be similarly trivially be replaced by a fail+return. Further cleanup can be done in follow-up patches. Tests run on Debian/x86_64. gdb/testsuite/ChangeLog 2018-10-27 Philippe Waroquiers <philippe.waroquiers@skynet.be> * gdb.arch/altivec-regs.exp: Do not use gdb_suppress_tests in runto_main, use fail + return instead. gdb.arch/amd64-byte.exp: Likewise. gdb.arch/amd64-dword.exp: Likewise. gdb.arch/amd64-word.exp: Likewise. gdb.arch/e500-abi.exp: Likewise. gdb.arch/e500-regs.exp: Likewise. gdb.arch/gdb1291.exp: Likewise. gdb.arch/gdb1431.exp: Likewise. gdb.arch/i386-avx.exp: Likewise. gdb.arch/i386-byte.exp: Likewise. gdb.arch/i386-prologue.exp: Likewise. gdb.arch/i386-sse.exp: Likewise. gdb.arch/i386-word.exp: Likewise. gdb.arch/iwmmxt-regs.exp: Likewise. gdb.arch/pa-nullify.exp: Likewise. gdb.arch/powerpc-prologue.exp: Likewise. gdb.arch/s390-tdbregs.exp: Likewise. gdb.arch/vsx-regs.exp: Likewise. gdb.asm/asm-source.exp: Likewise. gdb.base/auxv.exp: Likewise. gdb.base/bigcore.exp: Likewise. gdb.base/overlays.exp: Likewise. gdb.base/savedregs.exp: Likewise. gdb.base/setshow.exp: Likewise. gdb.base/sigaltstack.exp: Likewise. gdb.base/sigbpt.exp: Likewise. gdb.base/siginfo-addr.exp: Likewise. gdb.base/siginfo-obj.exp: Likewise. gdb.base/siginfo-thread.exp: Likewise. gdb.base/siginfo.exp: Likewise. gdb.base/signull.exp: Likewise. gdb.base/sigrepeat.exp: Likewise. gdb.base/structs2.exp: Likewise. gdb.threads/threadapply.exp: Likewise. gdb.threads/watchthreads.exp: Likewise. gdb.threads/watchthreads2.exp: Likewise.
2018-10-27Add a test case for info args|functions|locals|variables [-q] [-t ↵Philippe Waroquiers3-0/+326
TYPEREGEXP] [NAMEREGEXP] Add a test case for info args|functions|locals|variables [-q] [-t TYPEREGEXP] [NAMEREGEXP] gdb/testsuite/ChangeLog 2018-10-27 Philippe Waroquiers <philippe.waroquiers@skynet.be> * gdb.base/info_qt.c: New file. * gdb.base/info_qt.exp: New file.
2018-10-27Announce changes in NEWS to info [args|functions|locals|variables]Philippe Waroquiers2-0/+13
Announce changes in NEWS to info [args|functions|locals|variables] gdb/ChangeLog 2018-10-27 Philippe Waroquiers <philippe.waroquiers@skynet.be> * NEWS: Mention changes to 'info [args|functions|locals|variables]'
2018-10-27Document changes to info [args|functions|locals|variables]Philippe Waroquiers2-12/+120
Document changes to info [args|functions|locals|variables] gdb/doc/ChangeLog 2018-10-27 Philippe Waroquiers <philippe.waroquiers@skynet.be> * gdb.texinfo (Information About a Frame): Document changes to 'info args' and 'info locals'. (Examining the Symbol Table): Document changes to 'info functions' and 'info variables'.
2018-10-27Add [-q] [-t TYPEREGEXP] [NAMEREGEXP] args to info ↵Philippe Waroquiers5-49/+312
[args|functions|locals|variables] Add [-q] [-t TYPEREGEXP] [NAMEREGEXP] args to info [args|functions|locals|variables] Main changes are: * stack.c: Add two regexp preg and treg to print_variable_and_value_data and used them inside do_print_variable_and_value to filter the variables to print. * symtab.h: Add a new function bool treg_matches_sym_type_name, that factorises type matching logic. * symtab.c: Add type/name matching logic to 'info functions|variables'. * stack.c : Add type/name matching logic to 'info args|locals'. gdb/ChangeLog 2018-10-27 Philippe Waroquiers <philippe.waroquiers@skynet.be> * stack.c (print_variable_and_value_data): Add preg and treg. (print_frame_local_vars): Add quiet, regexp and t_regexp arguments, and update callers. (print_frame_arg_vars): Likewise. (prepare_reg): New function. (info_locals_command): Extract info print args and use them. (info_args_command): Likewise. (_initialize_stack): Modify on-line help. * symtab.c (treg_matches_sym_type_name): New function. (search_symbols): New arg t_regexp. (symtab_symbol_info): New args quiet, regexp, t_regexp. (info_variables_command): Extract info print args and use them. (info_functions_command): Likewise. (info_types_command): Update call to symtab_symbol_info. (_initialize_symtab): Modify on-line help. * symtab.h (treg_matches_sym_type_name): New function. (search_symbols): New t_regexp arg.
2018-10-27New cli-utils.h/.c function extract_info_print_argsPhilippe Waroquiers3-0/+170
New cli-utils.h/.c function extract_info_print_args factorizes the extraction of the args '[-q] [-t TYPEREGEXP] [NAMEREGEXP]'. New cli-utils.h/.c function report_unrecognized_option_error factorizes reporting an unknown option for a command. These functions will be used by the commands info [args|functions|locals|variables] As extract_info_print_args will be used for 'info functions|variables' which already have the NAMEREGEXP arg, it provides a backward compatible behaviour. cli-utils.c has a new static function extract_arg_maybe_quoted that extracts an argument, possibly quoted. The behaviour of this function is similar to the parsing done by gdb_argv. gdb/ChangeLog 2018-10-27 Philippe Waroquiers <philippe.waroquiers@skynet.be> * cli-utils.c (extract_arg_maybe_quoted): New function. (extract_info_print_args): New function. (info_print_args_help): New function. (report_unrecognized_option_error): New function. * cli-utils.h (extract_arg_maybe_quoted): New function. (extract_info_print_args): New function. (info_print_args_help): New function. (report_unrecognized_option_error): New function.
2018-10-27Automatic date update in version.inGDB Administrator1-1/+1
2018-10-26Remove DEF_VECs from symtab.hTom Tromey3-18/+14
This removes a couple of DEF_VECs from symtab.h, replacing them with std::vector at the points of use. gdb/ChangeLog 2018-10-26 Tom Tromey <tom@tromey.com> * dwarf2read.c (recursively_compute_inclusions): Use std::vector. (compute_compunit_symtab_includes): Update. * symtab.h: (symtab_ptr): Remove typedef. Don't define a VEC. (compunit_symtab_ptr): Likewise.
2018-10-26Treat all unknown auxv tags on FreeBSD as unknown.John Baldwin2-6/+25
Previously, default_print_auxv_entry was called for any auxv entries without a known AT_FREEBSD_* tag. However, this resulted in false positive matches when FreeBSD added a new tag that has an existing AT_* tag with a different meaning. Instead, only call default_print_auxv_entry for specific tag values for which FreeBSD matches the default AT_* values. gdb/ChangeLog: * fbsd-tdep.c (fbsd_print_auxv_entry): Only use default_print_auxv_entry for specific tag values.
2018-10-26Support AT_HWCAP2 on FreeBSD.John Baldwin4-0/+10
include/ChangeLog: * elf/common.h (AT_FREEBSD_HWCAP2): Define. gdb/ChangeLog: * fbsd-tdep.c (fbsd_print_auxv_entry): Handle AT_FREEBSD_HWCAP2.
2018-10-26RISC-V: Linux signal frame support.Jim Wilson2-0/+88
Add support for recognizing signal trampolines, parsing the signal frame, and reading register values from it. gdb/ * riscv-linux-tdep.c: Include tramp-frame.h and trad-frame.h. (riscv_linux_sigframe_init): Declare. (RISCV_INST_LI_A7_SIGRETURN, RISCV_INT_ECALL): New. (riscv_linux_sigframe): New. (SIGFRAME_SIGINFO_SIZE, UCONTEXT_MCONTEXT_OFFSET): New. (riscv_linux_sigframe_init): Define. (riscv_linux_init_abi): Call tramp_frame_prepend_unwinder.
2018-10-26RISC-V: Linux signal frame support.Jim Wilson3-9/+20
Make riscv_isa_flen available to the linux native code, and clean up duplicate comments. gdb/ * riscv-tdep.c (riscv_isa_xlen): Refer to riscv-tdep.h comment. (riscv_isa_flen): Likewise. Drop static. * riscv-tdep.h (riscv_isa_xlen): Move riscv-tdep.c comment to here. (riscv_isa_flen): Likewise.
2018-10-26[PowerPC] Add support for HTM registersEdjunior Barbosa Machado37-94/+3876
This patch adds support for Hardware Transactional Memory registers for the powerpc linux native and core file targets, and for the pwoerpc linux server stub. These registers include both the HTM special-purpose registers (TFHAR, TEXASR and TFIAR) as well as the set of registers that are checkpointed (saved) when a transaction is initiated, which the processor restores in the event of a transaction failure. The set of checkpointed general-purpose registers is returned by the linux kernel in the same format as the regular general-purpose registers, defined in struct pt_regs. However, the architecture specifies that only some of the registers present in pt_regs are checkpointed (GPRs 0-31, CR, XER, LR and CTR). The kernel fills the slots for MSR and NIP with other info. The other fields usually don't have meaningful values. GDB doesn't define registers that are not checkpointed in the architecture, but when generating a core file, GDB fills the slot for the checkpointed MSR with the regular MSR. These are usually similar, although some bits might be different, and in some cases the checkpointed MSR will have a value of 0 in a kernel-generated core-file. The checkpointed NIP is filled with TFHAR by GDB in the core-file, which is what the kernel does. The other fields are set to 0 by GDB. Core files generated by the kernel have a note section for checkpointed GPRs with the same size for both 32-bit and 64-bit threads, and the values for the registers of a 32-bit thread are squeezed in the first half, with no useful data in the second half. GDB generates a smaller note section for 32-bit threads, but can read both sizes. The checkpointed XER is required to be 32-bit in the target description documentation, even though the more recent ISAs define it as 64-bit wide, since the high-order 32-bits are reserved, and because in Linux there is no way to get a 64-bit checkpointed XER for 32-bit threads. If this changes in the future, the target description feature requirement can be relaxed to allow for a 64-bit checkpointed XER. Access to the checkpointed CR (condition register) can be confusing. The architecture only specifies that CR fields 1 to 7 (the 24 least significant bits) are checkpointed, but the kernel provides all 8 fields (32 bits). The value of field 0 is not masked by ptrace, so it will sometimes show the result of some kernel operation, probably treclaim., which sets this field. The checkpointed registers are marked not to be saved and restored. Inferior function calls during an active transaction don't work well, and it's unclear what should be done in this case. TEXASR and TFIAR can be altered asynchronously, during transaction failure recording, so they are also not saved and restored. For consistency neither is TFHAR. Record and replay also doesn't work well when transactions are involved. This patch doesn't address this, so the values of the HTM SPRs will sometimes be innacurate when the record/relay target is enabled. For instance, executing a "tbegin." alters TFHAR and TEXASR, but these changes are not currently recorded. Because the checkpointed registers are only available when a transaction is active (or suspended), ptrace can return ENODATA when gdb tries to read these registers and the inferior is not in a transactional state. The registers are set to the unavailable state when this happens. When gbd tries to write to one of these registers, and it is unavailable, an error is raised. The "fill" functions for checkpointed register sets in the server stub are not implemented for the same reason as for the EBB register set, since ptrace can also return ENODATA for checkpointed regsets. The same issues with 'G' packets apply here. Just like for the EBB registers, tracepoints will not mark the checkpointed registers as unavailable if the inferior was not in a transaction, so their content will also show 0 instead of <unavailable> when inspecting trace data. The new tests record the values of the regular registers before stepping the inferior through a "tbegin." instruction to start a transaction, then the checkpointed registers are checked against the recorded pre-transactional values. New values are written to the checkpointed registers and recorded, the inferior continues until the transaction aborts (which is usually immediately when it is resumed), and the regular registers are checked against the recorded values, because the abort should have reverted the registers to these values. Like for the EBB registers, target_store_registers will ignore the checkpointed registers when called with -1 as the regno argument (store all registers in one go). gdb/ChangeLog: 2018-10-26 Edjunior Barbosa Machado <emachado@linux.vnet.ibm.com> Pedro Franco de Carvalho <pedromfc@linux.ibm.com> * arch/ppc-linux-tdesc.h (tdesc_powerpc_isa207_htm_vsx32l) (tdesc_powerpc_isa207_htm_vsx64l): Declare. * arch/ppc-linux-common.h (PPC_LINUX_SIZEOF_TM_SPRREGSET) (PPC32_LINUX_SIZEOF_CGPRREGSET, PPC64_LINUX_SIZEOF_CGPRREGSET) (PPC_LINUX_SIZEOF_CFPRREGSET, PPC_LINUX_SIZEOF_CVMXREGSET) (PPC_LINUX_SIZEOF_CVSXREGSET, PPC_LINUX_SIZEOF_CPPRREGSET) (PPC_LINUX_SIZEOF_CDSCRREGSET, PPC_LINUX_SIZEOF_CTARREGSET): Define. (struct ppc_linux_features) <htm>: New field. (ppc_linux_no_features): Add initializer for htm field. * arch/ppc-linux-common.c (ppc_linux_match_description): Return new tdescs. * nat/ppc-linux.h (PPC_FEATURE2_HTM, NT_PPC_TM_CGPR) (NT_PPC_TM_CFPR, NT_PPC_TM_CVMX, NT_PPC_TM_CVSX) (NT_PPC_TM_SPR, NT_PPC_TM_CTAR, NT_PPC_TM_CPPR, NT_PPC_TM_CDSCR): Define if not already defined. * features/Makefile (WHICH): Add rs6000/powerpc-isa207-htm-vsx32l and rs6000/powerpc-isa207-htm-vsx64l. (XMLTOC): Add rs6000/powerpc-isa207-htm-vsx32l.xml and rs6000/powerpc-isa207-htm-vsx64l.xml. * features/rs6000/power-htm-spr.xml: New file. * features/rs6000/power-htm-core.xml: New file. * features/rs6000/power64-htm-core.xml: New file. * features/rs6000/power-htm-fpu.xml: New file. * features/rs6000/power-htm-altivec.xml: New file. * features/rs6000/power-htm-vsx.xml: New file. * features/rs6000/power-htm-ppr.xml: New file. * features/rs6000/power-htm-dscr.xml: New file. * features/rs6000/power-htm-tar.xml: New file. * features/rs6000/powerpc-isa207-htm-vsx32l.xml: New file. * features/rs6000/powerpc-isa207-htm-vsx64l.xml: New file. * features/rs6000/powerpc-isa207-htm-vsx32l.c: Generate. * features/rs6000/powerpc-isa207-htm-vsx64l.c: Generate. * regformats/rs6000/powerpc-isa207-htm-vsx32l.dat: Generate. * regformats/rs6000/powerpc-isa207-htm-vsx64l.dat: Generate. * ppc-linux-nat.c (fetch_register, fetch_ppc_registers): Call fetch_regset with HTM regsets. (store_register, store_ppc_registers): Call store_regset with HTM regsets. (ppc_linux_nat_target::read_description): Set htm field in the features struct if needed. * ppc-linux-tdep.c: Include features/rs6000/powerpc-isa207-htm-vsx32l.c and features/rs6000/powerpc-isa207-htm-vsx64l.c. (ppc32_regmap_tm_spr, ppc32_regmap_cgpr, ppc64_le_regmap_cgpr) (ppc64_be_regmap_cgpr, ppc32_regmap_cfpr, ppc32_le_regmap_cvmx) (ppc32_be_regmap_cvmx, ppc32_regmap_cvsx, ppc32_regmap_cppr) (ppc32_regmap_cdscr, ppc32_regmap_ctar): New globals. (ppc32_linux_tm_sprregset, ppc32_linux_cgprregset) (ppc64_be_linux_cgprregset, ppc64_le_linux_cgprregset) (ppc32_linux_cfprregset, ppc32_le_linux_cvmxregset) (ppc32_be_linux_cvmxregset, ppc32_linux_cvsxregset) (ppc32_linux_cpprregset, ppc32_linux_cdscrregset) (ppc32_linux_ctarregset): New globals. (ppc_linux_cgprregset, ppc_linux_cvmxregset): New functions. (ppc_linux_collect_core_cpgrregset): New function. (ppc_linux_iterate_over_regset_sections): Call back with the htm regsets. (ppc_linux_core_read_description): Check if the tm spr section is present and set htm in the features struct. (_initialize_ppc_linux_tdep): Call initialize_tdesc_powerpc_isa207_htm_vsx32l and initialize_tdesc_powerpc_isa207_htm_vsx64l. * ppc-linux-tdep.h (ppc_linux_cgprregset, ppc_linux_cvmxregset): Declare. (ppc32_linux_tm_sprregset, ppc32_linux_cfprregset) (ppc32_linux_cvsxregset, ppc32_linux_cpprregset) (ppc32_linux_cdscrregset, ppc32_linux_ctarregset): Declare. * ppc-tdep.h (struct gdbarch_tdep) <have_htm_spr, have_htm_core>: New fields. <have_htm_fpu, have_htm_altivec, have_htm_vsx>: Likewise. <ppc_cppr_regnum, ppc_cdscr_regnum, ppc_ctar_regnum>: Likewise. <ppc_cdl0_regnum, ppc_cvsr0_regnum, ppc_cefpr0_regnum>: Likewise. (enum) <PPC_TFHAR_REGNUM, PPC_TEXASR_REGNUM, PPC_TFIAR_REGNUM>: New enum fields. <PPC_CR0_REGNUM, PPC_CCR_REGNUM, PPC_CXER_REGNUM>: Likewise. <PPC_CLR_REGNUM, PPC_CCTR_REGNUM, PPC_CF0_REGNUM>: Likewise. <PPC_CFPSCR_REGNUM, PPC_CVR0_REGNUM, PPC_CVSCR_REGNUM>: Likewise. <PPC_CVRSAVE_REGNUM, PPC_CVSR0_UPPER_REGNUM>: Likewise. <PPC_CPPR_REGNUM, PPC_CDSCR_REGNUM>: Likewise. <PPC_CTAR_REGNUM>: Likewise. (PPC_IS_TMSPR_REGNUM, PPC_IS_CKPTGP_REGNUM, PPC_IS_CKPTFP_REGNUM) (PPC_IS_CKPTVMX_REGNUM, PPC_IS_CKPTVSX_REGNUM): Define. * rs6000-tdep.c (IS_CDFP_PSEUDOREG, IS_CVSX_PSEUDOREG) (IS_CEFP_PSEUDOREG): Define. (rs6000_register_name): Hide the upper halves of checkpointed VSX registers. Return names for the checkpointed DFP, VSX, and EFP pseudo registers. (rs6000_pseudo_register_type): Remove initial assert and raise an internal error in the else clause instead. Return types for the checkpointed DFP, VSX, and EFP pseudo registers. (dfp_pseudo_register_read, dfp_pseudo_register_write): Handle checkpointed DFP pseudo registers. (vsx_pseudo_register_read, vsx_pseudo_register_write): Handle checkpointed VSX pseudo registers. (efp_pseudo_register_read, efp_pseudo_register_write): Rename from efpr_pseudo_register_read and efpr_pseudo_register_write. Handle checkpointed EFP pseudo registers. (rs6000_pseudo_register_read, rs6000_pseudo_register_write): Handle checkpointed DFP, VSX, and EFP registers. (dfp_ax_pseudo_register_collect, vsx_ax_pseudo_register_collect) (efp_ax_pseudo_register_collect): New functions. (rs6000_ax_pseudo_register_collect): Move DFP, VSX and EFP pseudo register logic to new functions. Handle checkpointed DFP, VSX, and EFP pseudo registers. (rs6000_gdbarch_init): Look for and validate the htm features. Include checkpointed DFP, VSX and EFP pseudo-registers. * NEWS: Mention access to PPR, DSCR, TAR, EBB/PMU registers and HTM registers. gdb/gdbserver/ChangeLog: 2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com> * configure.srv (ipa_ppc_linux_regobj): Add powerpc-isa207-htm-vsx32l-ipa.o and powerpc-isa207-htm-vsx64l-ipa.o. (powerpc*-*-linux*): Add powerpc-isa207-htm-vsx32l.o and powerpc-isa207-htm-vsx64l.o to srv_regobj. Add rs6000/power-htm-spr.xml, rs6000/power-htm-core.xml, rs6000/power64-htm-core.xml, rs6000/power-htm-fpu.xml, rs6000/power-htm-altivec.xml, rs6000/power-htm-vsx.xml, rs6000/power-htm-ppr.xml, rs6000/power-htm-dscr.xml, rs6000/power-htm-tar.xml, rs6000/powerpc-isa207-htm-vsx32l.xml, and rs6000/powerpc-isa207-htm-vsx64l.xml to srv_xmlfiles. * linux-ppc-tdesc-init.h (enum ppc_linux_tdesc) <PPC_TDESC_ISA207_HTM_VSX>: New enum value. (init_registers_powerpc_isa207_htm_vsx32l) (init_registers_powerpc_isa207_htm_vsx64l): Declare. * linux-ppc-low.c (ppc_fill_tm_sprregset, ppc_store_tm_sprregset) (ppc_store_tm_cgprregset, ppc_store_tm_cfprregset) (ppc_store_tm_cvrregset, ppc_store_tm_cvsxregset) (ppc_store_tm_cpprregset, ppc_store_tm_cdscrregset) (ppc_store_tm_ctarregset): New functions. (ppc_regsets): Add entries for HTM regsets. (ppc_arch_setup): Set htm in features struct when needed. Set sizes for the HTM regsets. (ppc_get_ipa_tdesc_idx): Return PPC_TDESC_ISA207_HTM_VSX. (initialize_low_arch): Call init_registers_powerpc_isa207_htm_vsx32l and init_registers_powerpc_isa207_htm_vsx64l. * linux-ppc-ipa.c (get_ipa_tdesc): Handle PPC_TDESC_ISA207_HTM_VSX. (initialize_low_tracepoint): Call init_registers_powerpc_isa207_htm_vsx32l and init_registers_powerpc_isa207_htm_vsx64l. gdb/testsuite/ChangeLog: 2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com> * gdb.arch/powerpc-htm-regs.c: New file. * gdb.arch/powerpc-htm-regs.exp: New file. gdb/doc/ChangeLog: 2018-10-26 Pedro Franco de Carvalho <pedromfc@linux.ibm.com> * gdb.texinfo (PowerPC Features): Describe new features "org.gnu.gdb.power.htm.spr", "org.gnu.gdb.power.htm.core", "org.gnu.gdb.power.htm.fpu", "org.gnu.gdb.power.htm.altivec", "org.gnu.gdb.power.htm.vsx", "org.gnu.gdb.power.htm.ppr", "org.gnu.gdb.power.htm.dscr", "org.gnu.gdb.power.htm.tar".