From feacfcacaac9f7e62f467a33c4ae54c56501ed18 Mon Sep 17 00:00:00 2001 From: Simon Marchi Date: Thu, 13 Feb 2020 16:27:51 -0500 Subject: gdbserver: rename source files to .cc For the same reasons outlined in the previous patch, this patch renames gdbserver source files to .cc. I have moved the "-x c++" switch to only those rules that require it. gdbserver/ChangeLog: * Makefile.in: Rename source files from .c to .cc. * %.c: Rename to %.cc. * configure.ac: Rename server.c to server.cc. * configure: Re-generate. --- gdbserver/linux-sh-low.cc | 189 ++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 189 insertions(+) create mode 100644 gdbserver/linux-sh-low.cc (limited to 'gdbserver/linux-sh-low.cc') diff --git a/gdbserver/linux-sh-low.cc b/gdbserver/linux-sh-low.cc new file mode 100644 index 0000000..abe71ff --- /dev/null +++ b/gdbserver/linux-sh-low.cc @@ -0,0 +1,189 @@ +/* GNU/Linux/SH specific low level interface, for the remote server for GDB. + Copyright (C) 1995-2020 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 . */ + +#include "server.h" +#include "linux-low.h" + +/* Defined in auto-generated file reg-sh.c. */ +void init_registers_sh (void); +extern const struct target_desc *tdesc_sh; + +#ifdef HAVE_SYS_REG_H +#include +#endif + +#include + +#define sh_num_regs 41 + +/* Currently, don't check/send MQ. */ +static int sh_regmap[] = { + 0, 4, 8, 12, 16, 20, 24, 28, + 32, 36, 40, 44, 48, 52, 56, 60, + + REG_PC*4, REG_PR*4, REG_GBR*4, -1, + REG_MACH*4, REG_MACL*4, REG_SR*4, + REG_FPUL*4, REG_FPSCR*4, + + REG_FPREG0*4+0, REG_FPREG0*4+4, REG_FPREG0*4+8, REG_FPREG0*4+12, + REG_FPREG0*4+16, REG_FPREG0*4+20, REG_FPREG0*4+24, REG_FPREG0*4+28, + REG_FPREG0*4+32, REG_FPREG0*4+36, REG_FPREG0*4+40, REG_FPREG0*4+44, + REG_FPREG0*4+48, REG_FPREG0*4+52, REG_FPREG0*4+56, REG_FPREG0*4+60, +}; + +static int +sh_cannot_store_register (int regno) +{ + return 0; +} + +static int +sh_cannot_fetch_register (int regno) +{ + return 0; +} + +/* Correct in either endianness, obviously. */ +static const unsigned short sh_breakpoint = 0xc3c3; +#define sh_breakpoint_len 2 + +/* Implementation of linux_target_ops method "sw_breakpoint_from_kind". */ + +static const gdb_byte * +sh_sw_breakpoint_from_kind (int kind, int *size) +{ + *size = sh_breakpoint_len; + return (const gdb_byte *) &sh_breakpoint; +} + +static int +sh_breakpoint_at (CORE_ADDR where) +{ + unsigned short insn; + + (*the_target->read_memory) (where, (unsigned char *) &insn, 2); + if (insn == sh_breakpoint) + return 1; + + /* If necessary, recognize more trap instructions here. GDB only uses the + one. */ + return 0; +} + +/* Support for hardware single step. */ + +static int +sh_supports_hardware_single_step (void) +{ + return 1; +} + +/* Provide only a fill function for the general register set. ps_lgetregs + will use this for NPTL support. */ + +static void sh_fill_gregset (struct regcache *regcache, void *buf) +{ + int i; + + for (i = 0; i < 23; i++) + if (sh_regmap[i] != -1) + collect_register (regcache, i, (char *) buf + sh_regmap[i]); +} + +static struct regset_info sh_regsets[] = { + { 0, 0, 0, 0, GENERAL_REGS, sh_fill_gregset, NULL }, + NULL_REGSET +}; + +static struct regsets_info sh_regsets_info = + { + sh_regsets, /* regsets */ + 0, /* num_regsets */ + NULL, /* disabled_regsets */ + }; + +static struct usrregs_info sh_usrregs_info = + { + sh_num_regs, + sh_regmap, + }; + +static struct regs_info regs_info = + { + NULL, /* regset_bitmap */ + &sh_usrregs_info, + &sh_regsets_info + }; + +static const struct regs_info * +sh_regs_info (void) +{ + return ®s_info; +} + +static void +sh_arch_setup (void) +{ + current_process ()->tdesc = tdesc_sh; +} + +struct linux_target_ops the_low_target = { + sh_arch_setup, + sh_regs_info, + sh_cannot_fetch_register, + sh_cannot_store_register, + NULL, /* fetch_register */ + linux_get_pc_32bit, + linux_set_pc_32bit, + NULL, /* breakpoint_kind_from_pc */ + sh_sw_breakpoint_from_kind, + NULL, + 0, + sh_breakpoint_at, + NULL, /* supports_z_point_type */ + NULL, /* insert_point */ + NULL, /* remove_point */ + NULL, /* stopped_by_watchpoint */ + NULL, /* stopped_data_address */ + NULL, /* collect_ptrace_register */ + NULL, /* supply_ptrace_register */ + NULL, /* siginfo_fixup */ + NULL, /* new_process */ + NULL, /* delete_process */ + NULL, /* new_thread */ + NULL, /* delete_thread */ + NULL, /* new_fork */ + NULL, /* prepare_to_resume */ + NULL, /* process_qsupported */ + NULL, /* supports_tracepoints */ + NULL, /* get_thread_area */ + NULL, /* install_fast_tracepoint_jump_pad */ + NULL, /* emit_ops */ + NULL, /* get_min_fast_tracepoint_insn_len */ + NULL, /* supports_range_stepping */ + NULL, /* breakpoint_kind_from_current_state */ + sh_supports_hardware_single_step, +}; + +void +initialize_low_arch (void) +{ + init_registers_sh (); + + initialize_regsets_info (&sh_regsets_info); +} -- cgit v1.1