X-Git-Url: http://git.efficios.com/?a=blobdiff_plain;f=gdbserver%2Flinux-sh-low.cc;h=a6d3fc600470177ea0b723410fe0e274d28a275c;hb=73944e9f6317fa826044d79a6c15ea4448270ee8;hp=abe71ff4766b9898097bad88e7ab08c67147fd5a;hpb=feacfcacaac9f7e62f467a33c4ae54c56501ed18;p=deliverable%2Fbinutils-gdb.git diff --git a/gdbserver/linux-sh-low.cc b/gdbserver/linux-sh-low.cc index abe71ff476..a6d3fc6004 100644 --- a/gdbserver/linux-sh-low.cc +++ b/gdbserver/linux-sh-low.cc @@ -19,6 +19,55 @@ #include "server.h" #include "linux-low.h" +/* Linux target op definitions for the SH architecture. */ + +class sh_target : public linux_process_target +{ +public: + + const regs_info *get_regs_info () override; + + const gdb_byte *sw_breakpoint_from_kind (int kind, int *size) override; + +protected: + + void low_arch_setup () override; + + bool low_cannot_fetch_register (int regno) override; + + bool low_cannot_store_register (int regno) override; + + bool low_supports_breakpoints () override; + + CORE_ADDR low_get_pc (regcache *regcache) override; + + void low_set_pc (regcache *regcache, CORE_ADDR newpc) override; + + bool low_breakpoint_at (CORE_ADDR pc) override; +}; + +/* The singleton target ops object. */ + +static sh_target the_sh_target; + +bool +sh_target::low_supports_breakpoints () +{ + return true; +} + +CORE_ADDR +sh_target::low_get_pc (regcache *regcache) +{ + return linux_get_pc_32bit (regcache); +} + +void +sh_target::low_set_pc (regcache *regcache, CORE_ADDR pc) +{ + linux_set_pc_32bit (regcache, pc); +} + /* Defined in auto-generated file reg-sh.c. */ void init_registers_sh (void); extern const struct target_desc *tdesc_sh; @@ -46,51 +95,43 @@ static int sh_regmap[] = { REG_FPREG0*4+48, REG_FPREG0*4+52, REG_FPREG0*4+56, REG_FPREG0*4+60, }; -static int -sh_cannot_store_register (int regno) +bool +sh_target::low_cannot_store_register (int regno) { - return 0; + return false; } -static int -sh_cannot_fetch_register (int regno) +bool +sh_target::low_cannot_fetch_register (int regno) { - return 0; + return false; } /* 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". */ +/* Implementation of target ops method "sw_breakpoint_from_kind". */ -static const gdb_byte * -sh_sw_breakpoint_from_kind (int kind, int *size) +const gdb_byte * +sh_target::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) +bool +sh_target::low_breakpoint_at (CORE_ADDR where) { unsigned short insn; - (*the_target->read_memory) (where, (unsigned char *) &insn, 2); + read_memory (where, (unsigned char *) &insn, 2); if (insn == sh_breakpoint) - return 1; + return true; /* 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; + return false; } /* Provide only a fill function for the general register set. ps_lgetregs @@ -123,62 +164,28 @@ static struct usrregs_info sh_usrregs_info = sh_regmap, }; -static struct regs_info regs_info = +static struct regs_info myregs_info = { NULL, /* regset_bitmap */ &sh_usrregs_info, &sh_regsets_info }; -static const struct regs_info * -sh_regs_info (void) +const regs_info * +sh_target::get_regs_info () { - return ®s_info; + return &myregs_info; } -static void -sh_arch_setup (void) +void +sh_target::low_arch_setup () { 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, -}; +/* The linux target ops object. */ + +linux_process_target *the_linux_target = &the_sh_target; void initialize_low_arch (void)