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2022-08-30[gdb/tdep] Declare score-*-* target obsoleteTom de Vries1-0/+1
I tried out the script gdb/gdb_mbuild.sh, and ran into: ... score-elf ... ... configure --target=score-elf ... make score-elf ... run score-elf score-elf: gdb dumped core Terminated ... Gdb runs into this internal error in initialize_current_architecture: ... if (! gdbarch_update_p (info)) internal_error (__FILE__, __LINE__, _("initialize_current_architecture: Selection of " "initial architecture failed")); ... The call to gdbarch_update_p fails because commit 575b4c298a6 ("gdb: Remove support for S+core") removed support for the architecture. Fix this by adding score-*-* to the list of obsolete targets in gdb/configure.tgt, such that we're no longer able to build the configuration: ... *** Configuration score-unknown-elf is obsolete. *** Support has been REMOVED. make: *** [Makefile:12806: configure-gdb] Error 1 ... Also remove the related line from the "Target Instruction Set Architectures" list in gdb/MAINTAINERS, such that gdb/gdb_mbuild.sh no longer tries to build it.
2022-03-17gdb: Remove support for S+corePedro Alves1-5/+0
GCC removed support for score back in 2014 already. Back then, we basically agreed about removing it from GDB too, but it ended up being forgotten. See: https://sourceware.org/pipermail/gdb/2014-October/044643.html Following through this time around. Change-Id: I5b25a1ff7bce7b150d6f90f4c34047fae4b1f8b4
2022-02-11gdb: LoongArch: Add Makefile, configure and NEWSTiezhu Yang1-0/+11
This commit adds Makefile, configure and NEWS for LoongArch. Signed-off-by: Zhensong Liu <liuzhensong@loongson.cn> Signed-off-by: Qing zhang <zhangqing@loongson.cn> Signed-off-by: Youling Tang <tangyouling@loongson.cn> Signed-off-by: Tiezhu Yang <yangtiezhu@loongson.cn>
2021-09-17Fix segfault when running ia16-elf-gdbHenry Castro1-0/+5
"A problem internal to GDB has been detected, further debugging may prove unreliable." Segmentation fault
2021-09-09gdb: Enable target rx-*-*linux.Yoshinori Sato1-1/+1
I added rx-*-linux in binutils few yaers ago. But missing this changes,
2021-09-07gdb: cris: enable sim integrationMike Frysinger1-0/+1
The sim side is already ready to go for cris, so wire it up.
2021-09-07gdb: aarch64: enable sim integrationMike Frysinger1-0/+1
The sim side is already ready to go for aarch64, so wire it up.
2021-09-07gdb: sim: consolidate configure settingsMike Frysinger1-40/+35
Moving all the sim settings to one section makes it easier to track, and makes it easier to keep it aligned with the sim target tests. The gdb logic was duplicating this when handling different OS targets instead of having a single cpu check. Now it's more obvious that the sim is tied to a cpu and not related to the OS.
2021-08-11Deprecate a.out support for NetBSD targets.John Ericson1-1/+1
As discussed previously, a.out support is now quite deprecated, and in some cases removed, in both Binutils itself and NetBSD, so this legacy default makes little sense. `netbsdelf*` and `netbsdaout*` still work allowing the user to be explicit about there choice. Additionally, the configure script warns about the change as Nick Clifton requested. One possible concern was the status of NetBSD on NS32K, where only a.out was supported. But per [1] NetBSD has removed support, and if it were to come back, it would be with ELF. The binutils implementation is therefore marked obsolete, per the instructions in the last message. With that patch and this one applied, I have confirmed the following: --target=i686-unknown-netbsd --target=i686-unknown-netbsdelf builds completely --target=i686-unknown-netbsdaout properly fails because target is deprecated. --target=vax-unknown-netbsdaout builds completely except for gas, where the target is deprecated. [1]: https://mail-index.netbsd.org/tech-toolchain/2021/07/19/msg004025.html --- bfd/config.bfd | 43 +++++++++++++-------- bfd/configure.ac | 5 +-- binutils/testsuite/binutils-all/nm.exp | 2 +- binutils/testsuite/lib/binutils-common.exp | 7 +--- config/picflag.m4 | 4 +- gas/configure.tgt | 9 +++-- gas/testsuite/gas/arm/blx-bl-convert.d | 2 +- gas/testsuite/gas/arm/blx-local-thumb.d | 2 +- gas/testsuite/gas/sh/basic.exp | 2 +- gdb/configure.host | 34 +++++++---------- gdb/configure.tgt | 2 +- gdb/testsuite/gdb.asm/asm-source.exp | 6 +-- intl/configure | 2 +- ld/configure.tgt | 44 +++++++++++----------- ld/testsuite/ld-arm/arm-elf.exp | 4 +- ld/testsuite/ld-elf/elf.exp | 2 +- ld/testsuite/ld-elf/shared.exp | 4 +- libiberty/configure | 4 +-
2021-07-21Remove `netbsdpe` supportJohn Ericson1-0/+1
netbsdpe was deprecated in c2ce831330e10dab4703094491f80b6b9a5c2289. Since then, a release has passed (2.37), and it was marked obselete in 5c9cbf07f3f972ecffe13d858010b3179df17b32. Unless I am mistaken, that means we can now remove support altogether. All branches in the "active" code are remove, and the target is additionally marked as obsolete next to the other removed ones for libbfd and gdb. Per [1] from the NetBSD toolchain list, PE/COFF support was removed a decade ago. Furthermore, the sole mention of this target in the binutils commit history was in 2002. Together, I'm led to believe this target hasn't seen much attention in quite a while. [1]: https://mail-index.netbsd.org/tech-toolchain/2021/06/16/msg003996.html bfd/ * config.bfd: Remove netbsdpe entry. binutils/ * configure.ac: Remove netbsdpe entry. * testsuite/lib/binutils-common.exp (is_pecoff_format): Likewise. * configure: Regenerate. gas/ * configure.tgt: Remove netbsdpe entry. gdb/ * configure.tgt: Add netbsdpe to removed targets. ld/ * configure.tgt: Remove netbsdpe entry. * testsuite/ld-bootstrap/bootstrap.exp: Likewise.
2021-07-17Add basic Z80 CPU supportSergey Belyashov1-0/+4
Supported ISAs: - Z80 (all undocumented instructions) - Z180 - eZ80 (Z80 mode only) Datasheets: Z80: https://www.zilog.com/manage_directlink.php?filepath=docs/z80/um0080&extn=.pdf Z180: https://www.zilog.com/manage_directlink.php?filepath=docs/z180/ps0140&extn=.pdf eZ80: http://www.zilog.com/force_download.php?filepath=YUhSMGNEb3ZMM2QzZHk1NmFXeHZaeTVqYjIwdlpHOWpjeTlWVFRBd056Y3VjR1Jt To debug Z80 programs using GDB you must configure and embed z80-stub.c to your program (SDCC compiler is required). Or you may use some simulator with GDB support. gdb/ChangeLog: * Makefile.in (ALL_TARGET_OBS): Add z80-tdep.c. * NEWS: Mention z80 support. * configure.tgt: Handle z80*. * features/Makefile (XMLTOC): Add z80.xml. * features/z80-cpu.xml: New. * features/z80.c: Generate. * features/z80.xml: New. * z80-tdep.c: New file. * z80-tdep.h: New file. gdb/stubs/ChangeLog: * z80-stub.c: New file. Change-Id: Id0b7a6e210c3f93c6853c5e3031b7bcee47d0db9
2021-07-13Fix some dangling references to `netbsd-tdep`John Ericson1-4/+4
These files were renamed in 1b71cfcfdc3e13a655fefa6566b5564cec044c10, but evidentially a few dangling references were left behind. This causes builds to fail: $ ./configure --target i686-netbsdelf $ make make: *** No rule to make target 'nbsd-tdep.c', needed by 'nbsd-tdep.o'. Stop.
2021-06-01gdb/arm: add support for bare-metal core dumpsAndrew Burgess1-1/+2
This commit adds support for bare metal core dumps on the ARM target, and is based off of this patch submitted to the mailing list: https://sourceware.org/pipermail/gdb-patches/2020-October/172845.html Compared to the version linked above this version is updated to take account of recent changes to the core dump infrastructure in GDB, there is now more shared infrastructure for core dumping within GDB, and also some common bare metal core dumping infrastructure. As a result this patch is smaller than the original proposed patch. Further, the original patch included some unrelated changes to the simulator that have been removed from this version. I have written a ChangeLog entry as the original patch was missing one. I have done absolutely no testing of this patch. It is based on the original submitted patch, which I assume was tested, but after my modifications things might have been broken, however, the original patch author has tested this version and reported it as being good: https://sourceware.org/pipermail/gdb-patches/2021-May/178900.html The core dump format is based around generating an ELF containing sections for the writable regions of memory that a user could be using. Which regions are dumped rely on GDB's existing common core dumping code, GDB will attempt to figure out the stack and heap as well as copying out writable data sections as identified by the original ELF. Register information is added to the core dump using notes, just as it is for Linux of FreeBSD core dumps. The note types used consist of the 2 basic types you would expect in a OS based core dump, NT_PRPSINFO, NT_PRSTATUS, along with the architecture specific NT_ARM_VFP note. The data layouts for each note type are described below, in all cases, all padding fields should be set to zero. Note NT_PRPSINFO is optional. Its data layout is: struct prpsinfo_t { uint8_t padding[28]; char fname[16]; char psargs[80]; } Field 'fname' - null terminated string consisting of the basename of (up to the fist 15 characters of) the executable. Any additional space should be set to zero. If there's no executable name then this field can be set to all zero. Field 'psargs' - a null terminated string up to 80 characters in length. Any additional space should be filled with zero. This field contains the full executable path and any arguments passed to the executable. If there's nothing sensible to write in this field then fill it with zero. Note NT_PRSTATUS is required, its data layout is: struct prstatus_t { uint8_t padding_1[12]; uint16_t sig; uint8_t padding_2[10]; uint32_t thread_id; uint8_t padding_3[44]; uint32_t gregs[18]; } Field 'sig' - the signal that stopped this thread. It's implementation defined what this field actually means. Within GDB this will be the signal number that the remote target reports as the stop reason for this thread. Field 'thread_is' - the thread id for this thread. It's implementation defined what this field actually means. Within GDB this will be thread thread-id that is assigned to each remote thread. Field 'gregs' - holds the general purpose registers $a1 through to $pc at indices 0 to 15. At index 16 the program status register. Index 17 should be set to zero. Note NT_ARM_VFP is optional, its data layout is: armvfp_t { uint64_t regs[32]; uint32_t fpscr; } Field 'regs' - holds the 32 d-registers 0 to 31 in order. Field 'fpscr' - holds the fpscr register. The rules for ordering the notes is the same as for Linux. The NT_PRSTATUS note must come before any other notes about additional register sets. And for multi-threaded targets all registers for a single thread should be grouped together. This is because only NT_PRSTATUS includes a thread-id, all additional register notes after a NT_PRSTATUS are assumed to belong to the same thread until a different NT_PRSTATUS is seen. gdb/ChangeLog: PR gdb/14383 * Makefile.in (ALL_TARGET_OBS): Add arm-none-tdep.o. (ALLDEPFILES): Add arm-none-tdep.c * arm-none-tdep.c: New file. * configure.tgt (arm*-*-*): Add arm-none-tdep.o to cpu_obs.
2021-03-24AArch64: Implement memory tagging target methods for AArch64Luis Machado1-0/+1
The patch implements the memory tagging target hooks for AArch64, so we can handle MTE. gdb/ChangeLog: 2021-03-24 Luis Machado <luis.machado@linaro.org> * Makefile.in (ALL_64_TARGET_OBS): Add arch/aarch64-mte-linux.o. (HFILES_NO_SRCDIR): Add arch/aarch64-mte-linux.h and nat/aarch64-mte-linux-ptrace.h. * aarch64-linux-nat.c: Include nat/aarch64-mte-linux-ptrace.h. (aarch64_linux_nat_target) <supports_memory_tagging>: New method override. <fetch_memtags>: New method override. <store_memtags>: New method override. (aarch64_linux_nat_target::supports_memory_tagging): New method. (aarch64_linux_nat_target::fetch_memtags): New method. (aarch64_linux_nat_target::store_memtags): New method. * arch/aarch64-mte-linux.c: New file. * arch/aarch64-mte-linux.h: Include gdbsupport/common-defs.h. (AARCH64_MTE_GRANULE_SIZE): Define. (aarch64_memtag_type): New enum. (aarch64_mte_get_tag_granules): New prototype. * configure.nat (NATDEPFILES): Add nat/aarch64-mte-linux-ptrace.o. * configure.tgt (aarch64*-*-linux*): Add arch/aarch64-mte-linux.o. * nat/aarch64-mte-linux-ptrace.c: New file. * nat/aarch64-mte-linux-ptrace.h: New file.
2021-03-05gdb/riscv: introduce bare metal core dump supportAndrew Burgess1-1/+1
This commit adds the ability for bare metal RISC-V target to generate core files from within GDB. The intended use case is that a user will connect to a remote bare metal target, debug up to some error condition, then generate a core file in the normal way using: (gdb) generate-core-file This core file can then be used to revisit the state of the remote target without having to reconnect to the remote target. The core file creation code is split between two new files. In elf-none-tdep.c is code for any architecture with the none ABI (i.e. bare metal) when the BFD library is built with ELF support. In riscv-none-tdep.c are the RISC-V specific parts. This is where the regset and regcache_map_entry structures are defined that control how registers are laid out in the core file. As this file could (in theory at least) be used for a non-ELF bare metal RISC-V target, the calls into elf-none-tdep.c are guarded with '#ifdef HAVE_ELF'. Currently for RISC-V only the x-regs and f-regs (if present) are written out. In future commits I plan to add support for writing out the RISC-V CSRs. The core dump format is based around generating an ELF containing sections for the writable regions of memory that a user could be using. Which regions are dumped rely on GDB's existing common core dumping code, GDB will attempt to figure out the stack and heap as well as copying out writable data sections as identified by the original ELF. Register information is added to the core dump using notes, just as it is for Linux of FreeBSD core dumps. The note types used consist of the 3 basic types you would expect in a OS based core dump, NT_PRPSINFO, NT_PRSTATUS, NT_FPREGSET. The layout of these notes differs slightly (due to field sizes) between RV32 and RV64. Below I describe the data layout for each note. In all cases, all padding fields should be set to zero. Note NT_PRPSINFO is optional. Its data layout is: struct prpsinfo32_t /* For RV32. */ { uint8_t padding[32]; char fname[16]; char psargs[80]; } struct prpsinfo64_t /* For RV64. */ { uint8_t padding[40]; char fname[16]; char psargs[80]; } Field 'fname' - null terminated string consisting of the basename of (up to the fist 15 characters of) the executable. Any additional space should be set to zero. If there's no executable name then this field can be set to all zero. Field 'psargs' - a null terminated string up to 80 characters in length. Any additional space should be filled with zero. This field contains the full executable path and any arguments passed to the executable. If there's nothing sensible to write in this field then fill it with zero. Note NT_PRSTATUS is required, its data layout is: struct prstatus32_t /* For RV32. */ { uint8_t padding_1[12]; uint16_t sig; uint8_t padding_2[10]; uint32_t thread_id; uint8_t padding_3[44]; uint32_t x_regs[32]; uint8_t padding_4[4]; } struct prstatus64_t /* For RV64. */ { uint8_t padding_1[12]; uint16_t sig; uint8_t padding_2[18]; uint32_t thread_id; uint8_t padding_3[76]; uint64_t x_regs[32]; uint8_t padding_4[4]; } Field 'sig' - the signal that stopped this thread. It's implementation defined what this field actually means. Within GDB this will be the signal number that the remote target reports as the stop reason for this thread. Field 'thread_is' - the thread id for this thread. It's implementation defined what this field actually means. Within GDB this will be thread thread-id that is assigned to each remote thread. Field 'x_regs' - at index 0 we store the program counter, and at indices 1 to 31 we store x-registers 1 to 31. x-register 0 is not stored, its value is always zero anyway. Note NT_FPREGSET is optional, its data layout is: fpregset32_t /* For targets with 'F' extension. */ { uint32_t f_regs[32]; uint32_t fcsr; } fpregset64_t /* For targets with 'D' extension . */ { uint64_t f_regs[32]; uint32_t fcsr; } Field 'f_regs' - stores f-registers 0 to 31. Field 'fcsr' - stores the fcsr CSR register, and is always 4-bytes. The rules for ordering the notes is the same as for Linux. The NT_PRSTATUS note must come before any other notes about additional register sets. And for multi-threaded targets all registers for a single thread should be grouped together. This is because only NT_PRSTATUS includes a thread-id, all additional register notes after a NT_PRSTATUS are assumed to belong to the same thread until a different NT_PRSTATUS is seen. gdb/ChangeLog: * Makefile.in (ALL_TARGET_OBS): Add riscv-none-tdep.o. (ALLDEPFILES): Add riscv-none-tdep.c. * configure: Regenerate. * configure.ac (CONFIG_OBS): Add elf-none-tdep.o when BFD has ELF support. * configure.tgt (riscv*-*-*): Include riscv-none-tdep.c. * elf-none-tdep.c: New file. * elf-none-tdep.h: New file. * riscv-none-tdep.c: New file.
2021-02-11gdb: Remove arm-symbianelf supportAlan Modra1-6/+0
Since it has gone from bfd/. * arm-symbian-tdep.c: Delete. * NEWS: Mention arm-symbian removal. * Makefile.in: Remove arm-symbian-tdep entries. * configure.tgt: Remove arm*-*-symbianelf*. * doc/gdb.texinfo: Remove mention of SymbianOS. * osabi.c (gdb_osabi_names): Remove "Symbian". * osabi.h (enum gdb_osabi): Remove GDB_OSABI_SYMBIAN. * testsuite/gdb.base/ending-run.exp: Remove E32Main handling. * testsuite/gdb.ada/catch_ex_std.exp: Remove arm*-*-symbianelf* handling. * testsuite/gdb.base/dup-sect.exp: Likewise. * testsuite/gdb.base/long_long.exp: Likewise. * testsuite/gdb.base/solib-weak.exp: Likewise. * testsuite/gdb.guile/scm-section-script.exp: Likewise. * testsuite/gdb.python/py-section-script.exp: Likewise. * testsuite/lib/dwarf.exp: Likewise. * testsuite/lib/gdb.exp: Likewise.
2021-02-04gdb: riscv: enable sim integrationMike Frysinger1-0/+1
Now the simulator can be loaded via gdb using "target sim".
2020-11-02Add x86_64 ravenscar supportTom Tromey1-1/+2
Support for x86_64 ravenscar was recently added to the Ada runtime. This patch updates gdb to follow. As this is Ada-specific, and was reviewed internally by Joel, I am checking it in. 2020-11-02 Tom Tromey <tromey@adacore.com> * Makefile.in (ALL_64_TARGET_OBS): Add amd64-ravenscar-thread.o. (ALLDEPFILES): Add amd64-ravenscar-thread.c. (HFILES_NO_SRCDIR): Add amd64-ravenscar-thread.h. * amd64-ravenscar-thread.c: New file. * amd64-ravenscar-thread.h: New file. * amd64-tdep.c (amd64_init_abi): Register ravenscar ops. * configure.tgt (amd64_tobjs): Add ravenscar objects.
2020-10-13Normalize names of the NetBSD filesKamil Rytarowski1-16/+16
The files used to be named 'nbsd', which incorrectly reflects the name of the OS and confuses it with other BSD derived OSes. gdb/ChangeLog: * Makefile.in (ALL_64_TARGET_OBS, ALL_TARGET_OBS) HFILES_NO_SRCDIR, ALLDEPFILES): Rename files. * alpha-bsd-nat.c: Adjust include. * alpha-bsd-tdep.h: Adjust comment. * alpha-nbsd-tdep.c: Rename to ... * alpha-netbsd-tdep.c: ... this, adjust include. * amd64-nbsd-nat.c: Rename to ... * amd64-netbsd-nat.c: ... this, adjust include. * amd64-nbsd-tdep.c: Rename to ... * amd64-netbsd-tdep.c: ... this, adjust include. * amd64-tdep.h: Adjust include. * arm-nbsd-nat.c: Rename to ... * arm-netbsd-nat.c: ... this, adjust include. * arm-nbsd-tdep.c: Rename to ... * arm-netbsd-tdep.c: ... this, adjust include. * arm-nbsd-tdep.h: Rename to ... * arm-netbsd-tdep.h: ... this, adjust include. * configure.nat: Adjust file lists. * configure.tgt: Likewise. * hppa-nbsd-nat.c: Rename to ... * hppa-netbsd-nat.c: ... this, adjust include. * hppa-nbsd-tdep.c: Rename to ... * hppa-netbsd-tdep.c: ... this, adjust include. * i386-nbsd-nat.c: Rename to ... * i386-netbsd-nat.c: ... this, adjust include. * i386-nbsd-tdep.c: Rename to ... * i386-netbsd-tdep.c: ... this, adjust include. * m68k-bsd-nat.c: Adjust include. * mips-nbsd-nat.c: Rename to ... * mips-netbsd-nat.c: ... this, adjust include. * mips-nbsd-tdep.c: Rename to ... * mips-netbsd-tdep.c: ... this, adjust include. * mips-nbsd-tdep.h: Rename to ... * mips-netbsd-tdep.h: ... this. * nbsd-nat.c: Rename to ... * netbsd-nat.c: ... this, adjust include. * nbsd-nat.h: Rename to ... * netbsd-nat.h: ... this, adjust include. * nbsd-tdep.c: Rename to ... * netbsd-tdep.c: ... this, adjust include. * nbsd-tdep.h: Rename to ... * netbsd-tdep.h: ... this. * ppc-nbsd-nat.c: Rename to ... * ppc-netbsd-nat.c: ... this, adjust include. * ppc-nbsd-tdep.c: Rename to ... * ppc-netbsd-tdep.c: ... this, adjust include and comment. * ppc-nbsd-tdep.h: Rename to ... * ppc-netbsd-tdep.h: ... this. * sh-nbsd-nat.c: Rename to ... * sh-netbsd-nat.c: ... this, adjust include. * sh-nbsd-tdep.c: Rename to ... * sh-netbsd-tdep.c: ... this, adjust include. * sparc-nbsd-nat.c: Rename to ... * sparc-netbsd-nat.c: ... this. * sparc-nbsd-tdep.c: Rename to ... * sparc-netbsd-tdep.c: ... this, adjust include. * sparc64-nbsd-nat.c: Rename to ... * sparc64-netbsd-nat.c: ... this. * sparc64-nbsd-tdep.c: Rename to ... * sparc64-netbsd-tdep.c: ... this, adjust include. * sparc64-tdep.h: Adjust comment. * vax-bsd-nat.c: Adjust include. * vax-nbsd-tdep.c: Rename to ... * vax-netbsd-tdep.c: ... this, adjust include.
2020-08-25arc: Add GNU/Linux support for ARCAnton Kolesov1-0/+5
ARC Linux targets differences from baremetal: - No support for hardware single instruction stepping. - Different access rules to registers. - Use of another instruction for breakpoints. v2: Changes after Tom's remarks [1] arc-linux-tdep.c - Use true/false instead of TRUE/FALSE. - arc_linux_sw_breakpoint_from_kind (): Break long lines into two. - arc_linux_sw_breakpoint_from_kind (): Remove starting blank line. - Use explicit number evaluation, e.g: if (a & b) -> if ((a & b) != 0) arc-tdep.c - Use explicit number evaluation, e.g: if (a & b) -> if ((a & b) != 0) gdb/configure.tgt - arc*-*-linux*): Remove "build_gdbserver=yes". v3: Changes after Simon's remarks [2] arc-linux-tdep.c - Use "return trap_size" instead of cryptic "return 2". - Removed unnecessary curly braces. - Removed "void" from "_initialize_arc_linux_tdep (void)". v5: Changes after Simon's remarks [3] - Remove unnecessary empty lines. - Replace "breakpoint uses" with "breakpoints use" in a comment. - "return condition;" i.s.o. "if (condition) return true; else return false;" [1] Tom's remarks https://sourceware.org/pipermail/gdb-patches/2020-April/167887.html [2] Simon's remarks on v2 https://sourceware.org/pipermail/gdb-patches/2020-May/168513.html [3] Simon's remarks on v4 https://sourceware.org/pipermail/gdb-patches/2020-August/170994.html gdb/ChangeLog: 2020-08-25 Anton Kolesov <anton.kolesov@synopsys.com> * configure.tgt: ARC support for GNU/Linux. * Makefile.in (ALL_TARGET_OBJS): Likewise. * arc-linux-tdep.c: New file. * arc-tdep.h (ARC_STATUS32_L_MASK, ARC_STATUS32_DE_MASK): Declare. * arc-tdep.c (arc_write_pc): Use it.
2020-08-04sim: eBPF simulatorJose E. Marchesi1-0/+1
This patch introduces the basics of an instruction-simulator for eBPF. The simulator is based on CGEN. gdb/ChangeLog: 2020-08-04 Jose E. Marchesi <jose.marchesi@oracle.com> * configure.tgt: Set gdb_sim for bpf-*-* targets. sim/ChangeLog: 2020-08-04 Jose E. Marchesi <jose.marchesi@oracle.com> David Faust <david.faust@oracle.com> * configure.tgt (sim_arch): Add entry for bpf-*-*. * configure: Regenerate. * MAINTAINERS: Add maintainer for the BPF simulator. * bpf/Makefile.in: New file. * bpf/bpf-helpers.c: Likewise. * bpf/bpf-helpers.def: Likewise. * bpf/bpf-helpers.h: Likewise. * bpf/bpf-sim.h: Likewise. * bpf/bpf.c: Likewise. * bpf/config.in: Likewise. * bpf/configure.ac: Likewise. * bpf/decode.h: Likewise. * bpf/eng.h: Likewise. * bpf/mloop.in: Likewise. * bpf/sim-if.c: Likewise. * bpf/sim-main.h: Likewise. * bpf/traps.c: Likewise. * bpf/configure: Generate. * bpf/aclocal.m4: Likewise. sim/testsuite/ChangeLog: 2020-08-04 David Faust <david.faust@oracle.com> Jose E. Marchesi <jose.marchesi@oracle.com> * configure: Regenerate. * sim/bpf/allinsn.exp: New file. * sim/bpf/alu.s: Likewise. * sim/bpf/alu32.s: Likewise. * sim/bpf/endbe.s: Likewise. * sim/bpf/endle.s: Likewise. * sim/bpf/jmp.s: Likewise. * sim/bpf/jmp32.s: Likewise. * sim/bpf/ldabs.s: Likewise. * sim/bpf/mem.s: Likewise. * sim/bpf/mov.s: Likewise. * sim/bpf/testutils.inc: Likewise. * sim/bpf/xadd.s: Likewise.
2020-08-04gdb: support for eBPFJose E. Marchesi1-0/+5
This patch adds basic support for the eBPF target: tdep and build machinery. The accompanying simulator is introduced in subsequent patches. gdb/ChangeLog: 2020-08-04 Weimin Pan <weimin.pan@oracle.com> Jose E. Marchesi <jose.marchesi@oracle.com> * configure.tgt: Add entry for bpf-*-*. * Makefile.in (ALL_TARGET_OBS): Add bpf-tdep.o (ALLDEPFILES): Add bpf-tdep.c. * bpf-tdep.c: New file. * MAINTAINERS: Add bpf target and maintainer. gdb/doc/ChangeLog: 2020-08-04 Jose E. Marchesi <jose.marchesi@oracle.com> * gdb.texinfo (Contributors): Add information for the eBPF support. (BPF): New section.
2020-06-25Don't include *sol2-tdep.o on Linux/sparc*Rainer Orth1-4/+4
Linux/sparc* currently links Solaris-specific files (sparc-sol2-tdep.o, sparc64-sol2-tdep.o, sol2-tdep.o) for no apparent reason. It has no business doing so, and none of the functions/variables defined there are used explicitly. If support for the Solaris OSABI were desired, this should be done using --enable-targets instead. Since neither sparc{32,64}_sol2_init_abi currently declared in common headers (sparc*-tdep.h) are used outside their source files, they are made static and the declarations removed. Tested on sparcv9-sun-solaris2.11 and sparc64-unknown-linux-gnu. * configure.tgt <sparc-*-linux*> (gdb_target_obs): Remove sparc-sol2-tdep.o, sol2-tdep.o, sparc64-sol2-tdep.o. <sparc64-*-linux*> (gdb_target_obs): Remove sparc64-sol2-tdep.o, sol2-tdep.o, sparc-sol2-tdep.o. * sparc-sol2-tdep.c (sparc32_sol2_init_abi): Make static. * sparc-tdep.h (sparc32_sol2_init_abi): Remove. * sparc64-sol2-tdep.c (sparc64_sol2_init_abi): Make static. * sparc64-tdep.h (sparc64_sol2_init_abi): Remove.
2020-03-16arc: Migrate to new target featuresAnton Kolesov1-1/+1
This patch replaces usage of target descriptions in ARC, where the whole description is fixed in XML, with new target descriptions where XML describes individual features, and GDB assembles those features into actual target description. v2: Removed arc.c from ALLDEPFILES in gdb/Makefile.in. Removed vim modeline from arc-tdep.c to have it in a separate patch. Removed braces from one line "if/else". Undid the type change for "jb_pc" (kept it as "int"). Joined the unnecessary line breaks into one line. No more moving around arm targets in gdb/features/Makefile. Changed pattern checking for ARC features from "arc/{aux,core}" to "arc/". v3: Added include gaurds to arc.h. Added arc_read_description to _create_ target descriptions less. v4: Got rid of ARC_SYS_TYPE_NONE. Renamed ARC_SYS_TYPE_INVALID to ARC_SYS_TYPE_NUM. Fixed a few indentations/curly braces. Converted arc_sys_type_to_str from a macro to an inline function. gdb/ChangeLog: 2020-03-16 Anton Kolesov <anton.kolesov@synopsys.com> Shahab Vahedi <shahab@synopsys.com> * Makefile.in: Add arch/arc.o * configure.tgt: Likewise. * arc-tdep.c (arc_tdesc_init): Use arc_read_description. (_initialize_arc_tdep): Don't initialize old target descriptions. (arc_read_description): New function to cache target descriptions. * arc-tdep.h (arc_read_description): Add proto type. * arch/arc.c: New file. * arch/arc.h: Likewise. * features/Makefile: Replace old target descriptions with new. * features/arc-arcompact.c: Remove. * features/arc-arcompact.xml: Likewise. * features/arc-v2.c: Likewise * features/arc-v2.xml: Likewise * features/arc/aux-arcompact.xml: New file. * features/arc/aux-v2.xml: Likewise. * features/arc/core-arcompact.xml: Likewise. * features/arc/core-v2.xml: Likewise. * features/arc/aux-arcompact.c: Generate. * features/arc/aux-v2.c: Likewise. * features/arc/core-arcompact.c: Likewise. * features/arc/core-v2.c: Likewise. * target-descriptions (maint_print_c_tdesc_cmd): Support ARC features.
2020-03-16gdb: rename i386-cygwin-tdep.c to i386-windows-tdep.cSimon Marchi1-3/+3
Since this file contains things that apply not only to Cygwin binaries, but also to non-Cygwin Windows binaries, I think it would make more sense for it to be called i386-windows-tdep.c. It is analogous to amd64-windows-tdep.c, which we already have. gdb/ChangeLog: * i386-cygwin-tdep.c: Rename to... * i386-windows-tdep.c: ... this. * Makefile.in (ALL_TARGET_OBS): Rename i386-cygwin-tdep.c to i386-windows-tdep.c. * configure.tgt: Likewise.
2020-03-16gdb: add Windows OS ABISimon Marchi1-2/+2
GDB currently uses the "Cygwin" OS ABI (GDB_OSABI_CYGWIN) for everything related to Windows. If you build a GDB for a MinGW or Cygwin target, it will have "Cygwin" as the default OS ABI in both cases (see configure.tgt). If you load either a MinGW or Cygwin binary, the "Cygwin" OS ABI will be selected in both cases. This is misleading, because Cygwin binaries are a subset of the binaries running on Windows. When building something with MinGW, the resulting binary has nothing to do with Cygwin. Cygwin binaries are only special in that they are Windows binaries that link to the cygwin1.dll library (if my understanding is correct). Looking at i386-cygwin-tdep.c, we can see that GDB does nothing different when dealing with Cygwin binaries versus non-Cygwin Windows binaries. However, there is at least one known bug which would require us to make a distinction between the two OS ABIs, and that is the size of the built-in "long" type on x86-64. On native Windows, this is 4, whereas on Cygwin it's 8. So, this patch adds a new OS ABI, "Windows", and makes GDB use it for i386 and x86-64 PE executables, instead of the "Cygwin" OS ABI. A subsequent patch will improve the OS ABI detection so that GDB differentiates the non-Cygwin Windows binaries from the Cygwin Windows binaries, and applies the "Cygwin" OS ABI for the latter. The default OS ABI remains "Cygwin" for the GDBs built with a Cygwin target. I've decided to split the i386_cygwin_osabi_sniffer function in two, I think it's cleaner to have a separate sniffer for Windows binaries and Cygwin cores, each checking one specific thing. gdb/ChangeLog: * osabi.h (enum gdb_osabi): Add GDB_OSABI_WINDOWS. * osabi.c (gdb_osabi_names): Add "Windows". * i386-cygwin-tdep.c (i386_cygwin_osabi_sniffer): Return GDB_OSABI_WINDOWS when the binary's target is "pei-i386". (i386_cygwin_core_osabi_sniffer): New function, extracted from i386_cygwin_osabi_sniffer. (_initialize_i386_cygwin_tdep): Register OS ABI GDB_OSABI_WINDOWS for i386. * amd64-windows-tdep.c (amd64_windows_osabi_sniffer): Return GDB_OSABI_WINDOWS when the binary's target is "pei-x86-64". (_initialize_amd64_windows_tdep): Register OS ABI GDB_OSABI_WINDOWS for x86-64. * configure.tgt: Use GDB_OSABI_WINDOWS as the default OS ABI when the target matches '*-*-mingw*'.
2020-02-07Move gdbserver to top levelTom Tromey1-24/+0
This patch moves gdbserver to the top level. This patch is as close to a pure move as possible -- gdbserver still builds its own variant of gnulib and gdbsupport. Changing this will be done in a separate patch. [v2] Note that, per Simon's review comment, this patch changes the tree so that gdbserver is not built for or1k or score. This makes sense, because there is apparently not actually a gdbserver port here. [v3] This version of the patch also splits out some configury into a new file, gdbserver/configure.host, so that the top-level configure script can simply rely on it in order to decide whether gdbserver should be built. [v4] This version adds documentation and removes some unnecessary top-level dependencies. [v5] Update docs to mention "make all-gdbserver" and change how top-level configure decides whether to build gdbserver, switching to a single, shared script. Tested by the buildbot. ChangeLog 2020-02-07 Tom Tromey <tom@tromey.com> Pedro Alves <palves@redhat.com> * src-release.sh (GDB_SUPPORT_DIRS): Add gdbserver. * gdbserver: New directory, moved from gdb/gdbserver. * configure.ac (host_tools): Add gdbserver. Only build gdbserver on certain systems. * Makefile.in, configure: Rebuild. * Makefile.def (host_modules, dependencies): Add gdbserver. * MAINTAINERS: Add gdbserver. gdb/ChangeLog 2020-02-07 Tom Tromey <tom@tromey.com> * README: Update gdbserver documentation. * gdbserver: Move to top level. * configure.tgt (build_gdbserver): Remove. * configure.ac: Remove --enable-gdbserver. * configure: Rebuild. * Makefile.in (distclean): Don't mention gdbserver. Change-Id: I826b7565b54604711dc7a11edea0499cd51ff39e
2019-12-13MSP430: Relax target glob for configuring GDBJozef Lawrynowicz1-1/+1
This enables support for the msp430-elfbare target being added to GCC. gdb/ChangeLog: 2019-12-13 Jozef Lawrynowicz <jozef.l@mittosystems.com> * configure.tgt: Match msp430-*-elf* targets when configuring GDB.
2019-12-12Ravenscar port for RISC-VTom Tromey1-1/+2
This adds Ravenscar support to gdb for RISC-V targets. This was tested internally using AdaCore's test suite and qemu. gdb/ChangeLog 2019-12-12 Tom Tromey <tromey@adacore.com> * Makefile.in (ALL_TARGET_OBS): Add riscv-ravenscar-thread.o. (HFILES_NO_SRCDIR): Add riscv-ravenscar-thread.h. (ALLDEPFILES): Add riscv-ravenscar-thread.c. * configure.tgt (riscv-*-*): Add riscv-ravenscar-thread.o. * riscv-ravenscar-thread.c: New file. * riscv-ravenscar-thread.h: New file. * riscv-tdep.c (riscv_gdbarch_init): Call register_riscv_ravenscar_ops. Change-Id: Ic47a3b3cfbbe80c2c82a5f48d2e0481845cac8b0
2019-11-04Obsolete Solaris 10 supportRainer Orth1-0/+1
Here's the patch corresponding to the Solaris 10 obsoletion announcement https://sourceware.org/ml/gdb/2019-10/msg00008.html Right now it doesn't remove any code, but obviates the need to test on that ancient platform. Besides, some of the patches I have in my queue would require different solutions for Solaris 10 and 11. There are a few comment-only references that I've kept since they are still correct as is, even when GDB doesn't support Solaris 10 any longer. The only code fragment I've left in is support for /proc/<pid/path/a.out in procfs.c (procfs_target::pid_to_exec_file): while current Solaris 11 updates provide /proc/<pid>/execname, that wasn't present in Solaris 11.0 and still isn't in current Illumos and I didn't want to make live harder for them. Tested on i386-pc-solaris2.10 (obsolete configuration rejected) and x86_64-pc-linux-gnu x sparc64-solaris2.10 (likewise) resp. x86_64-pc-linux-gnu x sparcv9-solaris2.11 (still builds; I'm using the sparcv9 form for 64-bit SPARC customary on Solaris in the MAINTAINERS file now). * NEWS (Changes since GDB 8.3): Document Solaris 10 removal. * configure.host: Mark *-*-solaris2.10* obsolete. * configure.tgt: Mark Solaris < 11 obsolete. * MAINTAINERS (Target Instruction Set Architectures) <sparc>: Update target triplet.
2019-09-20Remove Cell Broadband Engine debugging supportUlrich Weigand1-8/+1
This patch implements removal of Cell/B.E. support, including - Support for the spu-*-* target - Support for native stand-alone SPU debugging - Support for integrated debugging of combined PPU/SPU applications - Remote debugging (gdbserver) support for all the above. The patch also removes the TARGET_OBJECT_SPU target object type, as this is available only on Cell/B.E. targets, including - Native Linux support - Core file support (including core file generation) - Remote target support, including removal of the qXfer:spu:read and qXfer:spu:write remote protocal packets and associated support in gdbserver. gdb/ChangeLog 2019-09-20 Ulrich Weigand <uweigand@de.ibm.com> * NEWS: Mention that Cell/B.E. debugging support was removed. * MAINTAINERS: Remove spu target. * config/djgpp/fnchange.lst: Remove entries for removed files. * Makefile.in (ALL_TARGET_OBS): Remove solib-spu.o, spu-multiarch.o, and spu-tdep.o. (HFILES_NO_SRCDIR): Remove solib-spu.h and spu-tdep.h. (ALLDEPFILES): Remove solib-spu.c, spu-linux-nat.c, spu-multiarch.c, and spu-tdep.c. * spu-linux-nat.c: Remove file. * spu-multiarch.c: Remove file. * spu-tdep.c: Remove file. * spu-tdep.h: Remove file. * solib-spu.c: Remove file. * solib-spu.h: Remove file. * configure.host (powerpc64*-*-linux*): Remove Cell/B.E. support. * configure.nat (spu-linux): Remove. * configure.tgt (powerpc*-*-linux*): Remove solib-spu.o and solib-multiarch.o from gdb_target_obs. (spu*-*-*): Remove. * arch/ppc-linux-common.h (struct ppc_linux_features): Remove "cell" feature flag. (ppc_linux_no_features): Update. * arch/ppc-linux-common.c (ppc_linux_match_description): Remove Cell/B.E. support. * arch/ppc-linux-tdesc.h (tdesc_powerpc_cell32l): Remove declaration. (tdesc_powerpc_cell64l): Likewise. * nat/ppc-linux.h (PPC_FEATURE_CELL): Remove. * ppc-linux-nat.c (ppc_linux_nat_target::read_description): Remove Cell/B.E. support. * ppc-linux-tdep.h: Do not include "solib-spu.h" or "spu-tdep.h". Do not include "features/rs6000/powerpc-cell32l.c" or "features/rs6000/powerpc-cell64l.c". (ppc_linux_spu_section): Remove. (ppc_linux_core_read_description): Remove Cell/B.E. support. (spe_context_objfile, spe_context_lm_addr, spe_context_offset, spe_context_cache_ptid, spe_context_cache_ptid): Remove. (ppc_linux_spe_context_lookup): Remove. (ppc_linux_spe_context_inferior_created): Remove. (ppc_linux_spe_context_solib_loaded): Remove. (ppc_linux_spe_context_solib_unloaded): Remove. (ppc_linux_spe_context): Remove. (struct ppu2spu_cache): Remove. (ppu2spu_prev_arch, ppu2spu_this_id, ppu2spu_prev_register): Remove. (struct ppu2spu_data): Remove. (ppu2spu_unwind_register, ppu2spu_sniffer, ppu2spu_dealloc_cache, ppu2spu_unwind): Remove. (ppc_linux_init_abi): Remove Cell/B.E. support. * rs6000-tdep.h (rs6000_gdbarch_init): Remove Cell/B.E. support. * features/Makefile (rs6000/powerpc-cell32l-expedite): Remove. (rs6000/powerpc-cell64l-expedite): Likewise (WHICH): Remove rs6000/powerpc-cell32l and rs6000/powerpc-cell64l. (XMLTOC): Remove rs6000/powerpc-cell32l.xml and rs6000/powerpc-cell64l.xml. * features/rs6000/powerpc-cell32l.xml: Remove. * features/rs6000/powerpc-cell64l.xml: Likewise. * features/rs6000/powerpc-cell32l.c: Remove generated file. * features/rs6000/powerpc-cell64l.c: Likewise. * regformats/rs6000/powerpc-cell32l.dat: Remove generated file. * regformats/rs6000/powerpc-cell64l.dat: Likewise. * regformats/reg-spu.dat: Remove. * target.h (enum target_object): Remove TARGET_OBJECT_SPU. * corelow.c (struct spuid_list): Remove. (add_to_spuid_list): Remove. (core_target::xfer_partial): Remove support for TARGET_OBJECT_SPU. * remote.c (PACKET_qXfer_spu_read, PACKET_qXfer_spu_write): Remove. (remote_protocol_features): Remove associated entries. (_initialize_remote): No longer initialize them. (remote_target::xfer_partial): Remove support for TARGET_OBJECT_SPU. * linux-nat.c (SPUFS_MAGIC): Remove. (linux_proc_xfer_spu): Remove. (spu_enumerate_spu_ids): Remove. (linux_nat_target::xfer_partial): Remove support for TARGET_OBJECT_SPU. * linux-tdep.c (-linux_spu_make_corefile_notes): Remove. (linux_make_corefile_notes): No longer call it. * regcache.c (cooked_read_test): Remove bfd_arch_spu special case. (cooked_write_test): Likewise. gdb/doc/ChangeLog 2019-09-20 Ulrich Weigand <uweigand@de.ibm.com> * doc/gdb.texinfo (Remote Configuration): Remove documentation for qXfer:spu:read and qXfer:spu:write. (General Query Packets): Likewise. (Cell Broadband Engine SPU architecture): Remove subsection. gdb/gdbserver/ChangeLog 2019-09-20 Ulrich Weigand <uweigand@de.ibm.com> * configure.srv (ipa_ppc_linux_regobj): Remove powerpc-cell32l-ipa.o and powerpc-cell64l-ipa.o. (powerpc*-*-linux*): Remove powerpc-cell32l.o and powerpc-cell64l.o from srv_regobj. Remove rs6000/powerpc-cell32l.xml and rs6000/powerpc-cell64l.xml from srv_xmlfiles. (spu*-*-*): Remove. * spu-low.c: Remove file. * linux-ppc-low.c (INSTR_SC, NR_spu_run): Remove. (parse_spufs_run): Remove. (ppc_get_pc): Remove Cell/B.E. support. (ppc_set_pc): Likewise. (ppc_breakpoint_at): Likewise. (ppc_arch_setup): Likewise. (ppc_get_ipa_tdesc_idx): Do not handle tdesc_powerpc_cell64l or tdesc_powerpc_cell32l. (initialize_low_arch): Do not call init_registers_powerpc_cell64l or init_registers_powerpc_cell32l. * linux-ppc-ipa.c (get_ipa_tdesc): Do not handle PPC_TDESC_CELL. (initialize_low_tracepoint): Do not call init_registers_powerpc_cell64l or init_registers_powerpc_cell32l. * linux-ppc-tdesc-init.h (PPC_TDESC_CELL): Mark as unused. (init_registers_powerpc_cell32l): Remove prototype. (init_registers_powerpc_cell64l): Likewise. * target.h (struct target_ops): Remove qxfer_spu member. * server.c (handle_qxfer_spu): Remove. (qxfer_packets): Remove entry for "spu". (handle_query): No longer support qXfer:spu:read or qXfer:spu:write. * linux-low.c (SPUFS_MAGIC): Remove. (spu_enumerate_spu_ids): Remove. (linux_qxfer_spu): Remove. (linux_target_ops): Remove qxfer_spu member. * lynx-low.c (lynx_target_ops): Remove qxfer_spu member. * nto-low.c (nto_target_ops): Remove qxfer_spu member. * win32-low.c (win32_target_ops): Remove qxfer_spu member. gdb/testsuite/ChangeLog 2019-09-20 Ulrich Weigand <uweigand@de.ibm.com> * gdb.arch/spu-info.exp: Remove file. * gdb.arch/spu-info.c: Remove file. * gdb.arch/spu-ls.exp: Remove file. * gdb.arch/spu-ls.c: Remove file. * gdb.asm/asm-source.exp: Remove support for spu*-*-*. * gdb.asm/spu.inc: Remove file. * gdb.base/dump.exp: Remove support for spu*-*-*. * gdb.base/stack-checking.exp: Likewise. * gdb.base/overlays.exp: Likewise. * gdb.base/ovlymgr.c: Likewise. * gdb.base/spu.ld: Remove file. * gdb.cp/bs15503.exp: Remove support for spu*-*-*. * gdb.cp/cpexprs.exp: Likewise. * gdb.cp/exception.exp: Likewise. * gdb.cp/gdb2495.exp: Likewise. * gdb.cp/mb-templates.exp: Likewise. * gdb.cp/pr9167.exp: Likewise. * gdb.cp/userdef.exp: Likewise. * gdb.xml/tdesc-regs.exp: Remove support for spu*-*-*. * gdb.cell: Remove directory. * lib/cell.exp: Remove file.
2019-07-19Arm: Add read_description read funcs and use in GDBAlan Hayward1-3/+5
Switch the Arm target to get target descriptions via arm_read_description and aarch32_read_description, in the same style as other feature targets. Add an enum to specify the different types - this will also be of use to gdbserver in a later patch. Under the hood return the same existing pre-feature target descriptions. gdb/ChangeLog: * Makefile.in: Add new files. * aarch32-tdep.c: New file. * aarch32-tdep.h: New file. * aarch64-linux-nat.c (aarch64_linux_nat_target::read_description): Call aarch32_read_description. * arch/aarch32.c: New file. * arch/aarch32.h: New file. * arch/arm.c (arm_create_target_description) (arm_create_mprofile_target_description): New function. * arch/arm.h (arm_fp_type, arm_m_profile_type): New enum. (arm_create_target_description) (arm_create_mprofile_target_description): New declaration. * arm-fbsd-tdep.c (arm_fbsd_read_description_auxv): Call read_description functions. * arm-linux-nat.c (arm_linux_nat_target::read_description): Likewise. * arm-linux-tdep.c (arm_linux_core_read_description): Likewise. * arm-tdep.c (tdesc_arm_list): New variable. (arm_register_g_packet_guesses): Call create description functions. (arm_read_description) (arm_read_mprofile_description): New function. * arm-tdep.h (arm_read_description) (arm_read_mprofile_description): Add declaration. * configure.tgt: Add new files.
2018-12-08gdb/or1k: Add linux debugging supportStafford Horne1-0/+8
Up until now OpenRISC GDB only has supported bare metal debugging. This patch adds linux userspace debugging and core dump analysis support. The changes are loosely based on nios2 and riscv implementations. This was tested with linux 4.20 core dumps for executables linked against musl libc. bfd/ChangeLog: * elf32-or1k.c (or1k_grok_prstatus): New function. (or1k_grok_psinfo): Likewise. gdb/ChangeLog: * Makefile.in (ALL_TARGET_OBS): Add or1k-linux-tdep.o. * configure.tgt: Add or1k*-*-linux*. * or1k-linux-tdep.c: New file. * or1k-tdep.c (or1k_gdbarch_init): Call gdbarch_init_osabi.
2018-11-21gdb/riscv: Add target description supportAndrew Burgess1-3/+6
This commit adds target description support for riscv. I've used the split feature approach for specifying the architectural features, and the CSR feature is auto-generated from the riscv-opc.h header file. If the target doesn't provide a suitable target description then GDB will build one by looking at the bfd headers. This commit does not implement target description creation for the Linux or FreeBSD native targets, both of these will need to add read_description methods into their respective target classes, which probe the target features, and then call riscv_create_target_description to build a suitable target description. Until this is done Linux and FreeBSD will get the same default target description based on the bfd that bare-metal targets get. I've only added feature descriptions for 32 and 64 bit registers, 128 bit registers (for RISC-V) are not supported in the reset of GDB yet. This commit removes the special reading of the MISA register in order to establish the target features, this was only used for figuring out the f-register size, and even that wasn't done consistently. We now rely on the target to tell us what size of registers it has (or look in the BFD as a last resort). The result of this is that we should now support RV64 targets with 32-bit float, though I have not extensively tested this combination yet. * Makefile.in (ALL_TARGET_OBS): Add arch/riscv.o. (HFILES_NO_SRCDIR): Add arch/riscv.h. * arch/riscv.c: New file. * arch/riscv.h: New file. * configure.tgt: Add cpu_obs list of riscv, move riscv-tdep.o into this list, and add arch/riscv.o. * features/Makefile: Add riscv features. * features/riscv/32bit-cpu.c: New file. * features/riscv/32bit-cpu.xml: New file. * features/riscv/32bit-csr.c: New file. * features/riscv/32bit-csr.xml: New file. * features/riscv/32bit-fpu.c: New file. * features/riscv/32bit-fpu.xml: New file. * features/riscv/64bit-cpu.c: New file. * features/riscv/64bit-cpu.xml: New file. * features/riscv/64bit-csr.c: New file. * features/riscv/64bit-csr.xml: New file. * features/riscv/64bit-fpu.c: New file. * features/riscv/64bit-fpu.xml: New file. * features/riscv/rebuild-csr-xml.sh: New file. * riscv-tdep.c: Add 'arch/riscv.h' include. (riscv_gdb_reg_names): Delete. (csr_reggroup): New global. (struct riscv_register_alias): Delete. (struct riscv_register_feature): New structure. (riscv_register_aliases): Delete. (riscv_xreg_feature): New global. (riscv_freg_feature): New global. (riscv_virtual_feature): New global. (riscv_csr_feature): New global. (riscv_create_csr_aliases): New function. (riscv_read_misa_reg): Delete. (riscv_has_feature): Delete. (riscv_isa_xlen): Simplify, just return cached xlen. (riscv_isa_flen): Simplify, just return cached flen. (riscv_has_fp_abi): Update for changes in struct gdbarch_tdep. (riscv_register_name): Update to make use of tdesc_register_name. Look up xreg and freg names in the new globals riscv_xreg_feature and riscv_freg_feature. Don't supply csr aliases here. (riscv_fpreg_q_type): Delete. (riscv_register_type): Use tdesc_register_type in almost all cases, override the returned type in a few specific cases only. (riscv_print_one_register_info): Handle errors reading registers. (riscv_register_reggroup_p): Use tdesc_register_in_reggroup_p for registers that are otherwise unknown to GDB. Also check the csr_reggroup. (riscv_print_registers_info): Remove assert about upper register number, and use gdbarch_register_reggroup_p instead of short-cutting. (riscv_find_default_target_description): New function. (riscv_check_tdesc_feature): New function. (riscv_add_reggroups): New function. (riscv_setup_register_aliases): New function. (riscv_init_reggroups): New function. (_initialize_riscv_tdep): Add calls to setup CSR aliases, and setup register groups. Register new riscv debug variable. * riscv-tdep.h: Add 'arch/riscv.h' include. (struct gdbarch_tdep): Remove abi union, and add riscv_gdbarch_features field. Remove cached quad floating point type, and provide initialisation for double type field. * target-descriptions.c (maint_print_c_tdesc_cmd): Add riscv to the list of targets using the feature based target descriptions. * NEWS: Mention target description support. gdb/doc/ChangeLog: * gdb.texinfo (Standard Target Features): Add RISC-V Features sub-section.
2018-11-06gdb: xtensa: use linux ABI code for uclinuxMax Filippov1-1/+1
gdb/ 2018-11-06 Max Filippov <jcmvbkbc@gmail.com> * configure.tgt (xtensa*-*-linux*): Change to xtensa*-*-*linux* so that it applies to uclinux as well.
2018-11-02(Ada) Add ravenscar tasking support on AArch64Joel Brobecker1-1/+2
This patch adds support for debugging Ravenscar tasks, similar to what is done for ppc and sparc. gdb/ChangeLog: * aarch64-ravenscar-thread.h, aarch64-ravenscar-thread.c: New files. * aarch64-tdep.c: #include "aarch64-ravenscar-thread.h". (aarch64_gdbarch_init): Add call to register_aarch64_ravenscar_ops. * Makefile.in (ALL_64_TARGET_OBS): Add aarch64-ravenscar-thread.o. (HFILES_NO_SRCDIR): Add aarch64-ravenscar-thread.h. (ALLDEPFILES): Add aarch64-ravenscar-thread.c. * configure.tgt (cpu_obs) [aarch64*-*-*]: Add ravenscar-thread.o and aarch64-ravenscar-thread.o. * NEWS: Add entry documenting Ravenscar tasking support on AArch64 ELF.
2018-11-01arm-pikeos: software single stepJerome Guitton1-0/+1
On ARM, PikeOS does not support hardware single step, causing various semi-random errors when trying to next/step over some user code. So this patch changes this target to use software-single-step instead. The challenge is that, up to now, the PikeOS target was in all respects identical to a baremetal target as far as GDB was concerned, meaning we were using the baremetal osabi for this target too. This is no longer possible, and we need to introduce a new OSABI variant. Unfortunately, there isn't anything in the object file that would allow us to differentiate between the two platforms. So we have to rely on a heuristic instead, where we look for some known symbols that are required in a PikeOS application (these symbols are expected to be defined by the default linker script, and correspond to routines used to allocate the application stack). For the long run, the hope is that the stub implementation provided by PikeOS is enhanced so that it includes vContSupported+ to the $qSupported query, and then that the reply to the "vCont?" query only return support for "continue" operations (thus exclusing "step" operations). We could then use that information to reliably determine at connection time that the target does not support single-stepping and therefore automatically turn software single-stepping automatically based on it. gdb/ChangeLog: * defs.h (enum gdb_osabi): Add GDB_OSABI_PIKEOS. * osabi.c (gdb_osabi_names): Add name for GDB_OSABI_PIKEOS. * arm-pikeos-tdep.c: New file. * configure.tgt: Add arm-pikeos-tdep.o to the case of ARM embedded system. * Makefile.in (ALL_TARGET_OBS): Add arm-pikeos-tdep.o. Tested on arm-pikeos and arm-elf using AdaCore's testsuite. We also evaluated it on armhf-linux as a cross platform.
2018-10-23GDB: New target s12zJohn Darrington1-0/+5
gdb/ * configure.tgt: Add configuration for s12z. * s12z-tdep.c: New file. * NEWS: Mention new target.
2018-10-08Add FreeBSD/riscv architecture.John Baldwin1-0/+5
Support for collecting and supplying general purpose and floating point register sets is provided along with signal frame unwinding. FreeBSD only supports RV64 currently, so while some provision is made for RV32 in the general-purpose register set, the changes have only been tested on RV64. gdb/ChangeLog: * Makefile.in (ALL_TARGET_OBS): Add riscv-fbsd-tdep.o. (HFILES_NO_SRCDIR): Add riscv-fbsd-tdep.h. (ALLDEPFILES): Add riscv-fbsd-tdep.c. * NEWS: Mention new FreeBSD/riscv target. * configure.tgt: Add riscv*-*-freebsd*. * riscv-fbsd-tdep.c: New file. * riscv-fbsd-tdep.h: New file.
2018-08-28Add support for new target 'csky'.Hafiz Abid Qadeer1-0/+11
2018-08-28 Jiangshuai Li <jiangshuai_li@c-sky.com> Hafiz Abid Qadeer <abidh@codesourcery.com> Don Breazeal <donb@codesourcery.com> * csky-linux-tdep.c: New file. * csky-tdep.c: Likewise. * csky-tdep.h: Likewise. * Makefile.in (ALL_TARGET_OBS): Add csky-linux-tdep.o and csky-tdep.o. (HFILES_NO_SRCDIR): Add csky-tdep.h. (ALLDEPFILES): Add csky-linux-tdep.c and csky-tdep.c * configure.tgt: Add csky support.
2018-08-09RISC-V: Add configure support for riscv*-linux*.Jim Wilson1-0/+6
This adds the target and native configure support, and the NEWS entries for the new target and native configurations. gdb/ * Makefile.in (ALL_TARGET_OBS): Add riscv-linux-tdep.c. (ALLDEPFILES): Add riscv-linux-nat.c, and riscv-linux-tdep.c. * NEWS: Mention new GNU/Linux RISC-V target. * configure.host: Add riscv*-*-linux*. * configure.nat: Add riscv*. * configure.tgt: Add riscv*-*-linux*.
2018-05-22[PowerPC] Consolidate linux target description selectionPedro Franco de Carvalho1-1/+2
Share target description declarations and selection among ppc linux native targets, core files, gdbserver and IPA. To avoid complicated define guards, gdbserver and IPA now have declarations for all descriptions, including 64-bit generated descriptions when compiled in 32-bit mode. These have always been linked into the gdbserver and IPA binaries. Because they might be uninitialized, the selection function checks that the selected description is initialized. gdb/ChangeLog: 2018-05-22 Pedro Franco de Carvalho <pedromfc@linux.vnet.ibm.com> * arch/ppc-linux-common.c: New file. * arch/ppc-linux-common.h: New file. * arch/ppc-linux-tdesc.h: New file. * configure.tgt (powerpc*-*-linux*): Add arch/ppc-linux-common.o. * Makefile.in (ALL_TARGET_OBS): Add arch/ppc-linux-common.o. (HFILES_NO_SRCDIR): Add arch/ppc-linux-common.h and arch/ppc-linux-tdesc.h. * ppc-linux-nat.c: Include arch/ppc-linux-common.h and arch/ppc-linux-tdesc.h. (ppc_linux_nat_target::read_description): Remove target description matching code. Fill a ppc_linux_features struct and call ppc_linux_match_description with it. Move comment about ISA 2.05 to ppc-linux-common.c. * ppc-linux-tdep.c: Include arch/ppc-linux-common.h and arch/ppc-linux-tdesc.h. (ppc_linux_core_read_description): Remove target description matching code. Fill a ppc_linux_features struct and call ppc_linux_match_description with it. * ppc-linux-tdep.h (tdesc_powerpc_32l, tdesc_powerpc_64l) (tdesc_powerpc_altivec32l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell32l, tdesc_powerpc_cell64l) (tdesc_powerpc_vsx32l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_64l) (tdesc_powerpc_isa205_altivec32l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_isa205_vsx64l) (tdesc_powerpc_e500l): Remove. gdb/gdbserver/ChangeLog: 2018-05-22 Pedro Franco de Carvalho <pedromfc@linux.vnet.ibm.com> * configure.srv (srv_tgtobj): Add arch/ppc-linux-common.o. * Makefile.in (SFILES): Add arch/ppc-linux-common.c. * linux-ppc-tdesc.h: Rename to linux-ppc-tdesc-init.h. * linux-ppc-tdesc-init.h (tdesc_powerpc_32l, tdesc_powerpc_64l) (tdesc_powerpc_altivec32l, tdesc_powerpc_altivec64l) (tdesc_powerpc_cell32l, tdesc_powerpc_cell64l) (tdesc_powerpc_vsx32l, tdesc_powerpc_vsx64l) (tdesc_powerpc_isa205_32l, tdesc_powerpc_isa205_64l) (tdesc_powerpc_isa205_altivec32l, tdesc_powerpc_isa205_altivec64l) (tdesc_powerpc_isa205_vsx32l, tdesc_powerpc_isa205_vsx64l) (tdesc_powerpc_e500l): Remove. * linux-ppc-ipa.c: Include arch/ppc-linux-tdesc.h and linux-ppc-tdesc-init.h. Don't include linux-ppc-tdesc.h. * linux-ppc-low.c: Include arch/ppc-linux-common.h, arch/ppc-linux-tdesc.h, and linux-ppc-tdesc-init.h. Don't include linux-ppc-tdesc.h. (ppc_arch_setup): Remove target description matching code. Fill a ppc_linux_features struct and call ppc_linux_match_description with it.
2018-05-11gdb: xtensa: drop gdb_target definitionMax Filippov1-1/+1
gdb_target definitions were removed from configure.tgt in 2007, before xtensa port was merged. Remove it from the xtensa target as well. gdb/ 2018-05-11 Max Filippov <jcmvbkbc@gmail.com> * configure.tgt (xtensa*-*-linux*): Drop gdb_target definition.
2018-04-16gdb: Remove support for SH-5/SH64Pedro Alves1-8/+3
Since bfd dropped support for SH-5, there's no point in keeping it in GDB either. This restores --enable-targets=all builds. gdb/ChangeLog: 2018-04-16 Pedro Alves <palves@redhat.com> * MAINTAINERS (sh): Remove. * Makefile.in (ALL_TARGET_OBS): Remove sh64-tdep.o. (HFILES_NO_SRCDIR): Remove sh64-tdep.h. (ALLDEPFILES): Remove sh64-tdep.c. * NEWS: Mentions that support for SH-5/SH64 is removed. * configure.tgt (sh*-*-linux*): Remove reference to sh64-tdep.o. (sh*-*-openbsd*): Ditto. (sh64-*-elf*): Remove. (sh*): Remove. * regcache.c (cooked_write_test): Remove bfd_mach_sh5 case. * sh-linux-tdep.c: Remove reference to bfd_mach_sh5. * sh-tdep.c: No longer include "sh64-tdep.h". (sh_gdbarch_init): Remove reference to bfd_mach_sh5. * sh64-tdep.c, sh64-tdep.h: Remove files.
2018-04-16gdb: Remove OpenBSD/m88k supportPedro Alves1-5/+0
Support for m88k was fully removed from bfd, which broke gdb --enable-targets=all builds: > gdb/m88k-tdep.c: In function void _initialize_m88k_tdep(): > gdb/m88k-tdep.c:867:21: error: bfd_arch_m88k was not declared in this scope > gdbarch_register (bfd_arch_m88k, m88k_gdbarch_init, NULL); There's no point in keeping GDB support for OpenBSD/m88k with no bfd support, so this commit simply removes the port. gdb/ChangeLog: 2018-04-16 Pedro Alves <palves@redhat.com> * MAINTAINERS: Remove m88k. * Makefile.in (ALL_TARGET_OBS): Remove m88k-tdep.o. (HFILES_NO_SRCDIR): Remove m88k-tdep.h. (ALLDEPFILES): Remove m88k-bsd-nat.c and m88k-tdep.c. * NEWS: Mention that support for OpenBSD/m88k was removed. * configure.host (m88*-*-*): Remove support. * configure.nat (m88k-*-*): Remove support. * configure.tgt (m88*-*-openbsd*): Remove. * m88k-bsd-nat.c, m88k-tdep.c, m88k-tdep.h: Delete.
2018-04-15Add x86-tdep.o to i386/amd64 target buildSimon Marchi1-2/+3
We get this error when doing a build with a single amd64 target (the default when doing just ./configure on x86-64 GNU/Linux): /home/simark/src/binutils-gdb/gdb/i386-tdep.c:4431: error: undefined reference to 'x86_in_indirect_branch_thunk(unsigned long, char const**, int, int)' /home/simark/src/binutils-gdb/gdb/amd64-tdep.c:3045: error: undefined reference to 'x86_in_indirect_branch_thunk(unsigned long, char const**, int, int)' The problem is that commit 1d509aa625f8 ("infrun: step through indirect branch thunks") missed adding x86-tdep.o to the list of object file included in an amd64 or i386 build. The problem is not seen with --enable-targets=all because that file is included in ALL_TARGET_OBS. Built-tested using: * --host=x86_64-pc-linux-gnu --target=x86_64-pc-linux-gnu * --host=armv7-rpi2-linux-gnueabihf --target=x86_64-pc-linux-gnu gdb/ChangeLog: * configure.tgt (x86_tobjs): New variable. (amd64_tobjs, i386_tobjs): Use it.
2018-03-06gdb: Initial baremetal riscv supportAndrew Burgess1-0/+5
This commit introduces basic support for baremetal RiscV as a GDB target. This target is currently only tested against the RiscV software simulator, which is not included as part of this commit. The target has been tested against the following RiscV variants: rv32im, rv32imc, rv32imf, rv32imfc, rv64im, rv64imc, rv64imfd, rv64imfdc. Across these variants we pass on average 34858 tests, and fail 272 tests, which is ~0.8%. The RiscV has a feature of its ABI where structures with a single floating point field, a single complex float field, or one float and one integer field are treated differently for argument passing. The new test gdb.base/infcall-nested-structs.exp is added to cover this feature. As passing these structures should work on all targets then I've made the test as a generic one, even though, for most targets, there's probably nothing special about any of these cases. gdb/ChangeLog: * Makefile.in (ALL_TARGET_OBS): Add riscv-tdep.o (HFILES_NO_SRCDIR): Add riscv-tdep.h. (ALLDEPFILES): Add riscv-tdep.c * configure.tgt: Add riscv support. * riscv-tdep.c: New file. * riscv-tdep.h: New file. * NEWS: Mention new target. * MAINTAINERS: Add entry for riscv. gdb/testsuite/ChangeLog: * gdb.base/infcall-nested-structs.exp: New file. * gdb.base/infcall-nested-structs.c: New file. * gdb.base/float.exp: Add riscv support.
2018-01-23s390: Split up s390-linux-tdep.c into two filesPhilipp Rudo1-2/+2
Currently all target dependent code for s390 is in one file, s390-linux-tdep.c. This includes code general for the architecture as well as code specific for uses in GNU/Linux (user space). Up until now this was OK as GNU/Linux was the only supported OS. In preparation to support the new Linux kernel 'OS' split up the existing s390 code into a general s390-tdep and a GNU/Linux-specific s390-linux-tdep. Note: The record-replay feature will be moved in a separate patch. This is simply due to the fact that the combined patch would be too large for the mailing list. This requires setting the process_record hook during OSABI init to keep the code bisectable. The patch moving record-replay cleans up this hack. gdb/ChangeLog: * s390-linux-nat.c (s390-tdep.h): New include. * Makefile.in (ALL_TARGET_OBS): Add s390-tdep.o. (HFILES_NO_SRCDIR): Add s390-tdep.h. (ALLDEPFILES): Add s390-tdep.c. * configure.tgt (s390*-*-linux*): Add s390-tdep.o. * s390-linux-tdep.h (HWCAP_S390_*, S390_*_REGNUM): Move to... * s390-tdep.h: ...this. New file. * s390-linux-tdep.c (s390-tdep.h): New include. (_initialize_s390_tdep): Rename to... (_initialize_s390_linux_tdep): ...this and adjust. (s390_abi_kind, s390_vector_abi_kind, gdbarch_tdep) (enum named opcodes, S390_NUM_GPRS, S390_NUM_FPRS): Move to s390-tdep.h. (s390_break_insn, s390_breakpoint, s390_readinstruction, is_ri) (is_ril, is_rr, is_rre, is_rs, is_rsy, is_rx, is_rxy) (s390_is_partial_instruction, s390_software_single_step) (is_non_branch_ril, s390_displaced_step_copy_insn) (s390_displaced_step_fixup, s390_displaced_step_hw_singlestep) (s390_prologue_data, s390_addr, s390_store, s390_load) (s390_check_for_saved, s390_analyze_prologue, s390_skip_prologue) (s390_register_call_saved, s390_guess_tracepoint_registers) (s390_register_name, s390_dwarf_regmap, s390_dwarf_reg_to_regnum) (regnum_is_gpr_full, regnum_is_vxr_full, s390_value_from_register) (s390_pseudo_register_name, s390_pseudo_register_type) (s390_pseudo_register_read, s390_pseudo_register_write) (s390_pseudo_register_reggroup_p, s390_ax_pseudo_register_collect) (s390_ax_pseudo_register_push_stack, s390_gen_return_address) (s390_addr_bits_remove, s390_address_class_type_flags) (s390_address_class_type_flags_to_name) (s390_address_class_name_to_type_flags, s390_effective_inner_type) (s390_function_arg_float, s390_function_arg_vector) (is_power_of_two, s390_function_arg_integer, s390_arg_state) (s390_handle_arg, s390_push_dummy_call, s390_dummy_id) (s390_frame_align, s390_register_return_value, s390_return_value) (s390_stack_frame_destroyed_p, s390_unwind_pc, s390_unwind_sp) (s390_unwind_pseudo_register, s390_adjust_frame_regnum) (s390_dwarf2_prev_register, s390_dwarf2_frame_init_reg) (s390_trad_frame_prev_register, s390_unwind_cache) (s390_prologue_frame_unwind_cache) (s390_backchain_frame_unwind_cache, s390_frame_unwind_cache) (s390_frame_this_id, s390_frame_prev_register, s390_frame_unwind) (s390_stub_unwind_cache, s390_stub_frame_unwind_cache) (s390_stub_frame_this_id, s390_stub_frame_prev_register) (s390_stub_frame_sniffer, s390_stub_frame_unwind) (s390_frame_base_address, s390_local_base_address) (s390_frame_base, s390_gcc_target_options) (s390_gnu_triplet_regexp, s390_stap_is_single_operand) (s390_validate_reg_range, s390_tdesc_valid) (s390_gdbarch_tdep_alloc, s390_gdbarch_init): Move to... * s390-tdep.c: ...this. New file.
2018-01-22Remove mt portYao Qi1-5/+1
This patch removes the MT port. The removal was annoucned https://sourceware.org/ml/gdb-announce/2017/msg00006.html I'll remove MT from the top-level configure later. gdb: 2018-01-22 Yao Qi <yao.qi@linaro.org> * Makefile.in (ALL_TARGET_OBS): Remove mt-tdep.o. * configure.tgt: Remove target mt. * mt-tdep.c: Remove. * regcache.c (cooked_read_test): Remove the check for mt.
2017-12-12gdb: Add OpenRISC or1k and or1knd target supportFranck Jullien1-0/+6
This patch prepares the current GDB port of the OpenRISC processor from https://github.com/openrisc/binutils-gdb for upstream merging. Testing has been done with a cgen sim provided in a separate patch. This has been tested with 2 toolchains. GCC [1] 5.4.0 from the OpenRISC project with Newlib [2] and GCC 5.4.0 with Musl [3] 1.1.4. It supports or1knd (no delay slot target). The default target is or1k (with delay slot). You can change the target arch with: (gdb) set architecture or1knd The target architecture is assumed to be or1knd [1] https://github.com/openrisc/or1k-gcc [2] https://github.com/openrisc/newlib [3] https://github.com/openrisc/musl-cross gdb/doc/ChangeLog: 2017-12-12 Stafford Horne <shorne@gmail.com> Stefan Wallentowitz <stefan@wallentowitz.de> Franck Jullien <franck.jullien@gmail.com> Jeremy Bennett <jeremy.bennett@embecosm.com> * gdb.texinfo: Add OpenRISC documentation. gdb/ChangeLog: 2017-12-12 Stafford Horne <shorne@gmail.com> Stefan Wallentowitz <stefan@wallentowitz.de> Stefan Kristiansson <stefan.kristiansson@saunalahti.fi> Franck Jullien <franck.jullien@gmail.com> Jeremy Bennett <jeremy.bennett@embecosm.com> * configure.tgt: Add targets for or1k and or1knd. * or1k-tdep.c: New file. * or1k-tdep.h: New file. * features/Makefile: Add or1k.xml to build. * features/or1k.xml: New file. * features/or1k-core.xml: New file. * features/or1k.c: Generated.
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