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| author | Kamil Rytarowski <n54@gmx.com> | 2020-09-02 19:35:42 +0200 |
|---|---|---|
| committer | Kamil Rytarowski <n54@gmx.com> | 2020-09-10 15:40:10 +0200 |
| commit | 62ba50486f1146f0cfd33074fc127fe00a02e87e (patch) | |
| tree | 85bf1a5ab4532bb4801f9aeb6d341481d5da4768 /gdbserver/netbsd-amd64-low.cc | |
| parent | cf4ac4be12c311d387c8bce55f16f5ad3782d77c (diff) | |
| download | fsf-binutils-gdb-62ba50486f1146f0cfd33074fc127fe00a02e87e.zip fsf-binutils-gdb-62ba50486f1146f0cfd33074fc127fe00a02e87e.tar.gz fsf-binutils-gdb-62ba50486f1146f0cfd33074fc127fe00a02e87e.tar.bz2 | |
Add minimal and functional NetBSD/amd64 gdbserver
Implement the following functionality: create_inferior,
post_create_inferior, attach, kill, detach, mourn, join, thread_alive,
resume, wait, fetch_registers, store_registers, read_memory, write_memory,
request_interrupt, supports_read_auxv, read_auxv,
supports_hardware_single_step, sw_breakpoint_from_kind,
supports_z_point_type, insert_point, remove_point,
stopped_by_sw_breakpoint, supports_qxfer_siginfo, qxfer_siginfo,
supports_stopped_by_sw_breakpoint, supports_non_stop,
supports_multi_process, supports_fork_events, supports_vfork_events,
supports_exec_events, supports_disable_randomization,
supports_qxfer_libraries_svr4, qxfer_libraries_svr4,
supports_pid_to_exec_file, pid_to_exec_file, thread_name,
supports_catch_syscall.
The only CPU architecture supported: x86_64.
Implement only support for hardware assisted single step and
software breakpoint.
Implement support only for regular X86 registers, thus no FPU.
gdbserver/ChangeLog:
* netbsd-low.cc: Add.
* netbsd-low.h: Likewise.
* netbsd-amd64-low.cc: Likewise.
* Makefile.in (SFILES): Register "netbsd-low.cc", "netbsd-low.h",
"netbsd-amd64-low.cc".
* configure.srv: Add x86_64-*-netbsd*.
Diffstat (limited to 'gdbserver/netbsd-amd64-low.cc')
| -rw-r--r-- | gdbserver/netbsd-amd64-low.cc | 187 |
1 files changed, 187 insertions, 0 deletions
diff --git a/gdbserver/netbsd-amd64-low.cc b/gdbserver/netbsd-amd64-low.cc new file mode 100644 index 0000000..9b8ea9b --- /dev/null +++ b/gdbserver/netbsd-amd64-low.cc @@ -0,0 +1,187 @@ +/* Copyright (C) 2020 Free Software Foundation, Inc. + + This file is part of GDB. + + This program is free software; you can redistribute it and/or modify + it under the terms of the GNU General Public License as published by + the Free Software Foundation; either version 3 of the License, or + (at your option) any later version. + + This program is distributed in the hope that it will be useful, + but WITHOUT ANY WARRANTY; without even the implied warranty of + MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + GNU General Public License for more details. + + You should have received a copy of the GNU General Public License + along with this program. If not, see <http://www.gnu.org/licenses/>. */ + +#include <sys/types.h> +#include <sys/ptrace.h> +#include <limits.h> + +#include "server.h" +#include "netbsd-low.h" +#include "gdbsupport/x86-xstate.h" +#include "arch/amd64.h" +#include "x86-tdesc.h" +#include "tdesc.h" + +/* The index of various registers inside the regcache. */ + +enum netbsd_x86_64_gdb_regnum +{ + AMD64_RAX_REGNUM, /* %rax */ + AMD64_RBX_REGNUM, /* %rbx */ + AMD64_RCX_REGNUM, /* %rcx */ + AMD64_RDX_REGNUM, /* %rdx */ + AMD64_RSI_REGNUM, /* %rsi */ + AMD64_RDI_REGNUM, /* %rdi */ + AMD64_RBP_REGNUM, /* %rbp */ + AMD64_RSP_REGNUM, /* %rsp */ + AMD64_R8_REGNUM, /* %r8 */ + AMD64_R9_REGNUM, /* %r9 */ + AMD64_R10_REGNUM, /* %r10 */ + AMD64_R11_REGNUM, /* %r11 */ + AMD64_R12_REGNUM, /* %r12 */ + AMD64_R13_REGNUM, /* %r13 */ + AMD64_R14_REGNUM, /* %r14 */ + AMD64_R15_REGNUM, /* %r15 */ + AMD64_RIP_REGNUM, /* %rip */ + AMD64_EFLAGS_REGNUM, /* %eflags */ + AMD64_CS_REGNUM, /* %cs */ + AMD64_SS_REGNUM, /* %ss */ + AMD64_DS_REGNUM, /* %ds */ + AMD64_ES_REGNUM, /* %es */ + AMD64_FS_REGNUM, /* %fs */ + AMD64_GS_REGNUM, /* %gs */ + AMD64_ST0_REGNUM = 24, /* %st0 */ + AMD64_ST1_REGNUM, /* %st1 */ + AMD64_FCTRL_REGNUM = AMD64_ST0_REGNUM + 8, + AMD64_FSTAT_REGNUM = AMD64_ST0_REGNUM + 9, + AMD64_FTAG_REGNUM = AMD64_ST0_REGNUM + 10, + AMD64_XMM0_REGNUM = 40, /* %xmm0 */ + AMD64_XMM1_REGNUM, /* %xmm1 */ + AMD64_MXCSR_REGNUM = AMD64_XMM0_REGNUM + 16, + AMD64_YMM0H_REGNUM, /* %ymm0h */ + AMD64_YMM15H_REGNUM = AMD64_YMM0H_REGNUM + 15, + AMD64_BND0R_REGNUM = AMD64_YMM15H_REGNUM + 1, + AMD64_BND3R_REGNUM = AMD64_BND0R_REGNUM + 3, + AMD64_BNDCFGU_REGNUM, + AMD64_BNDSTATUS_REGNUM, + AMD64_XMM16_REGNUM, + AMD64_XMM31_REGNUM = AMD64_XMM16_REGNUM + 15, + AMD64_YMM16H_REGNUM, + AMD64_YMM31H_REGNUM = AMD64_YMM16H_REGNUM + 15, + AMD64_K0_REGNUM, + AMD64_K7_REGNUM = AMD64_K0_REGNUM + 7, + AMD64_ZMM0H_REGNUM, + AMD64_ZMM31H_REGNUM = AMD64_ZMM0H_REGNUM + 31, + AMD64_PKRU_REGNUM, + AMD64_FSBASE_REGNUM, + AMD64_GSBASE_REGNUM +}; + +/* The fill_function for the general-purpose register set. */ + +static void +netbsd_x86_64_fill_gregset (struct regcache *regcache, char *buf) +{ + struct reg *r = (struct reg *) buf; + +#define netbsd_x86_64_collect_gp(regnum, fld) do { \ + collect_register (regcache, regnum, &r->regs[_REG_##fld]); \ + } while (0) + + netbsd_x86_64_collect_gp (AMD64_RAX_REGNUM, RAX); + netbsd_x86_64_collect_gp (AMD64_RBX_REGNUM, RBX); + netbsd_x86_64_collect_gp (AMD64_RCX_REGNUM, RCX); + netbsd_x86_64_collect_gp (AMD64_RDX_REGNUM, RDX); + netbsd_x86_64_collect_gp (AMD64_RSI_REGNUM, RSI); + netbsd_x86_64_collect_gp (AMD64_RDI_REGNUM, RDI); + netbsd_x86_64_collect_gp (AMD64_RBP_REGNUM, RBP); + netbsd_x86_64_collect_gp (AMD64_RSP_REGNUM, RSP); + netbsd_x86_64_collect_gp (AMD64_R8_REGNUM, R8); + netbsd_x86_64_collect_gp (AMD64_R9_REGNUM, R9); + netbsd_x86_64_collect_gp (AMD64_R10_REGNUM, R10); + netbsd_x86_64_collect_gp (AMD64_R11_REGNUM, R11); + netbsd_x86_64_collect_gp (AMD64_R12_REGNUM, R12); + netbsd_x86_64_collect_gp (AMD64_R13_REGNUM, R13); + netbsd_x86_64_collect_gp (AMD64_R14_REGNUM, R14); + netbsd_x86_64_collect_gp (AMD64_R15_REGNUM, R15); + netbsd_x86_64_collect_gp (AMD64_RIP_REGNUM, RIP); + netbsd_x86_64_collect_gp (AMD64_EFLAGS_REGNUM, RFLAGS); + netbsd_x86_64_collect_gp (AMD64_CS_REGNUM, CS); + netbsd_x86_64_collect_gp (AMD64_SS_REGNUM, SS); + netbsd_x86_64_collect_gp (AMD64_DS_REGNUM, DS); + netbsd_x86_64_collect_gp (AMD64_ES_REGNUM, ES); + netbsd_x86_64_collect_gp (AMD64_FS_REGNUM, FS); + netbsd_x86_64_collect_gp (AMD64_GS_REGNUM, GS); +} + +/* The store_function for the general-purpose register set. */ + +static void +netbsd_x86_64_store_gregset (struct regcache *regcache, const char *buf) +{ + struct reg *r = (struct reg *) buf; + +#define netbsd_x86_64_supply_gp(regnum, fld) do { \ + supply_register (regcache, regnum, &r->regs[_REG_##fld]); \ + } while(0) + + netbsd_x86_64_supply_gp (AMD64_RAX_REGNUM, RAX); + netbsd_x86_64_supply_gp (AMD64_RBX_REGNUM, RBX); + netbsd_x86_64_supply_gp (AMD64_RCX_REGNUM, RCX); + netbsd_x86_64_supply_gp (AMD64_RDX_REGNUM, RDX); + netbsd_x86_64_supply_gp (AMD64_RSI_REGNUM, RSI); + netbsd_x86_64_supply_gp (AMD64_RDI_REGNUM, RDI); + netbsd_x86_64_supply_gp (AMD64_RBP_REGNUM, RBP); + netbsd_x86_64_supply_gp (AMD64_RSP_REGNUM, RSP); + netbsd_x86_64_supply_gp (AMD64_R8_REGNUM, R8); + netbsd_x86_64_supply_gp (AMD64_R9_REGNUM, R9); + netbsd_x86_64_supply_gp (AMD64_R10_REGNUM, R10); + netbsd_x86_64_supply_gp (AMD64_R11_REGNUM, R11); + netbsd_x86_64_supply_gp (AMD64_R12_REGNUM, R12); + netbsd_x86_64_supply_gp (AMD64_R13_REGNUM, R13); + netbsd_x86_64_supply_gp (AMD64_R14_REGNUM, R14); + netbsd_x86_64_supply_gp (AMD64_R15_REGNUM, R15); + netbsd_x86_64_supply_gp (AMD64_RIP_REGNUM, RIP); + netbsd_x86_64_supply_gp (AMD64_EFLAGS_REGNUM, RFLAGS); + netbsd_x86_64_supply_gp (AMD64_CS_REGNUM, CS); + netbsd_x86_64_supply_gp (AMD64_SS_REGNUM, SS); + netbsd_x86_64_supply_gp (AMD64_DS_REGNUM, DS); + netbsd_x86_64_supply_gp (AMD64_ES_REGNUM, ES); + netbsd_x86_64_supply_gp (AMD64_FS_REGNUM, FS); + netbsd_x86_64_supply_gp (AMD64_GS_REGNUM, GS); +} + +/* Implements the netbsd_target_ops.arch_setup routine. */ + +static void +netbsd_x86_64_arch_setup (void) +{ + struct target_desc *tdesc + = amd64_create_target_description (X86_XSTATE_SSE_MASK, false, false, false); + + init_target_desc (tdesc, amd64_expedite_regs); + + netbsd_tdesc = tdesc; +} + +/* Description of all the x86-netbsd register sets. */ + +struct netbsd_regset_info netbsd_target_regsets[] = +{ + /* General Purpose Registers. */ + {PT_GETREGS, PT_SETREGS, sizeof (struct reg), + netbsd_x86_64_fill_gregset, netbsd_x86_64_store_gregset}, + /* End of list marker. */ + {0, 0, -1, NULL, NULL } +}; + +/* The netbsd_target_ops vector for x86-netbsd. */ + +struct netbsd_target_ops the_low_target = +{ + netbsd_x86_64_arch_setup, +}; |