diff options
Diffstat (limited to 'gdb/frv-tdep.c')
| -rw-r--r-- | gdb/frv-tdep.c | 235 |
1 files changed, 107 insertions, 128 deletions
diff --git a/gdb/frv-tdep.c b/gdb/frv-tdep.c index 1a709b9..d1009e4 100644 --- a/gdb/frv-tdep.c +++ b/gdb/frv-tdep.c @@ -29,7 +29,7 @@ #include "dis-asm.h" #include "sim-regno.h" #include "sim/sim-frv.h" -#include "opcodes/frv-desc.h" /* for the H_SPR_... enums */ +#include "opcodes/frv-desc.h" /* for the H_SPR_... enums */ #include "symtab.h" #include "elf-bfd.h" #include "elf/frv.h" @@ -40,18 +40,18 @@ #include "objfiles.h" #include "gdbarch.h" -struct frv_unwind_cache /* was struct frame_extra_info */ - { - /* The previous frame's inner-most stack address. Used as this +struct frv_unwind_cache /* was struct frame_extra_info */ +{ + /* The previous frame's inner-most stack address. Used as this frame ID's stack_addr. */ - CORE_ADDR prev_sp; + CORE_ADDR prev_sp; - /* The frame's base, optionally used by the high-level debug info. */ - CORE_ADDR base; + /* The frame's base, optionally used by the high-level debug info. */ + CORE_ADDR base; - /* Table indicating the location of each and every register. */ - trad_frame_saved_reg *saved_regs; - }; + /* Table indicating the location of each and every register. */ + trad_frame_saved_reg *saved_regs; +}; /* A structure describing a particular variant of the FRV. We allocate and initialize one of these structures when we create @@ -71,7 +71,9 @@ struct frv_unwind_cache /* was struct frame_extra_info */ struct frv_gdbarch_tdep : gdbarch_tdep_base { /* Which ABI is in use? */ - enum frv_abi frv_abi {}; + enum frv_abi frv_abi + { + }; /* How many general-purpose registers does this variant have? */ int num_gprs = 0; @@ -115,15 +117,15 @@ frv_fdpic_loadmap_addresses (struct gdbarch *gdbarch, CORE_ADDR *interp_addr, if (interp_addr != NULL) { ULONGEST val; - regcache_cooked_read_unsigned (regcache, - fdpic_loadmap_interp_regnum, &val); + regcache_cooked_read_unsigned (regcache, fdpic_loadmap_interp_regnum, + &val); *interp_addr = val; } if (exec_addr != NULL) { ULONGEST val; - regcache_cooked_read_unsigned (regcache, - fdpic_loadmap_exec_regnum, &val); + regcache_cooked_read_unsigned (regcache, fdpic_loadmap_exec_regnum, + &val); *exec_addr = val; } return 0; @@ -147,7 +149,7 @@ new_variant () /* By default, don't supply any general-purpose or floating-point register names. */ - var->register_names + var->register_names = (const char **) xmalloc ((frv_num_regs + frv_num_pseudo_regs) * sizeof (const char *)); for (r = 0; r < frv_num_regs + frv_num_pseudo_regs; r++) @@ -159,7 +161,7 @@ new_variant () var->register_names[pc_regnum] = "pc"; var->register_names[lr_regnum] = "lr"; var->register_names[lcr_regnum] = "lcr"; - + var->register_names[psr_regnum] = "psr"; var->register_names[ccr_regnum] = "ccr"; var->register_names[cccr_regnum] = "cccr"; @@ -185,8 +187,7 @@ new_variant () in the G packet. If we need more in the future, we'll add them elsewhere. */ for (r = acc0_regnum; r <= acc7_regnum; r++) - var->register_names[r] - = xstrprintf ("acc%d", r - acc0_regnum).release (); + var->register_names[r] = xstrprintf ("acc%d", r - acc0_regnum).release (); /* accg0 - accg7: These are one byte registers. The remote protocol provides the raw values packed four into a slot. accg0123 and @@ -212,7 +213,6 @@ new_variant () return var; } - /* Indicate that the variant VAR has NUM_GPRS general-purpose registers, and fill in the names array appropriately. */ static void @@ -231,7 +231,6 @@ set_variant_num_gprs (frv_gdbarch_tdep *var, int num_gprs) } } - /* Indicate that the variant VAR has NUM_FPRS floating-point registers, and fill in the names array appropriately. */ static void @@ -275,7 +274,6 @@ frv_register_name (struct gdbarch *gdbarch, int reg) return tdep->register_names[reg]; } - static struct type * frv_register_type (struct gdbarch *gdbarch, int reg) { @@ -326,7 +324,7 @@ frv_pseudo_register_read (struct gdbarch *gdbarch, readable_regcache *regcache, static void frv_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, - int reg, const gdb_byte *buffer) + int reg, const gdb_byte *buffer) { if (reg == iacc0_regnum) { @@ -351,47 +349,46 @@ frv_pseudo_register_write (struct gdbarch *gdbarch, struct regcache *regcache, static int frv_register_sim_regno (struct gdbarch *gdbarch, int reg) { - static const int spr_map[] = - { - H_SPR_PSR, /* psr_regnum */ - H_SPR_CCR, /* ccr_regnum */ - H_SPR_CCCR, /* cccr_regnum */ - -1, /* fdpic_loadmap_exec_regnum */ - -1, /* fdpic_loadmap_interp_regnum */ - -1, /* 134 */ - H_SPR_TBR, /* tbr_regnum */ - H_SPR_BRR, /* brr_regnum */ - H_SPR_DBAR0, /* dbar0_regnum */ - H_SPR_DBAR1, /* dbar1_regnum */ - H_SPR_DBAR2, /* dbar2_regnum */ - H_SPR_DBAR3, /* dbar3_regnum */ - H_SPR_SCR0, /* scr0_regnum */ - H_SPR_SCR1, /* scr1_regnum */ - H_SPR_SCR2, /* scr2_regnum */ - H_SPR_SCR3, /* scr3_regnum */ - H_SPR_LR, /* lr_regnum */ - H_SPR_LCR, /* lcr_regnum */ - H_SPR_IACC0H, /* iacc0h_regnum */ - H_SPR_IACC0L, /* iacc0l_regnum */ - H_SPR_FSR0, /* fsr0_regnum */ - /* FIXME: Add infrastructure for fetching/setting ACC and ACCG regs. */ - -1, /* acc0_regnum */ - -1, /* acc1_regnum */ - -1, /* acc2_regnum */ - -1, /* acc3_regnum */ - -1, /* acc4_regnum */ - -1, /* acc5_regnum */ - -1, /* acc6_regnum */ - -1, /* acc7_regnum */ - -1, /* acc0123_regnum */ - -1, /* acc4567_regnum */ - H_SPR_MSR0, /* msr0_regnum */ - H_SPR_MSR1, /* msr1_regnum */ - H_SPR_GNER0, /* gner0_regnum */ - H_SPR_GNER1, /* gner1_regnum */ - H_SPR_FNER0, /* fner0_regnum */ - H_SPR_FNER1, /* fner1_regnum */ - }; + static const int spr_map[] = { + H_SPR_PSR, /* psr_regnum */ + H_SPR_CCR, /* ccr_regnum */ + H_SPR_CCCR, /* cccr_regnum */ + -1, /* fdpic_loadmap_exec_regnum */ + -1, /* fdpic_loadmap_interp_regnum */ + -1, /* 134 */ + H_SPR_TBR, /* tbr_regnum */ + H_SPR_BRR, /* brr_regnum */ + H_SPR_DBAR0, /* dbar0_regnum */ + H_SPR_DBAR1, /* dbar1_regnum */ + H_SPR_DBAR2, /* dbar2_regnum */ + H_SPR_DBAR3, /* dbar3_regnum */ + H_SPR_SCR0, /* scr0_regnum */ + H_SPR_SCR1, /* scr1_regnum */ + H_SPR_SCR2, /* scr2_regnum */ + H_SPR_SCR3, /* scr3_regnum */ + H_SPR_LR, /* lr_regnum */ + H_SPR_LCR, /* lcr_regnum */ + H_SPR_IACC0H, /* iacc0h_regnum */ + H_SPR_IACC0L, /* iacc0l_regnum */ + H_SPR_FSR0, /* fsr0_regnum */ + /* FIXME: Add infrastructure for fetching/setting ACC and ACCG regs. */ + -1, /* acc0_regnum */ + -1, /* acc1_regnum */ + -1, /* acc2_regnum */ + -1, /* acc3_regnum */ + -1, /* acc4_regnum */ + -1, /* acc5_regnum */ + -1, /* acc6_regnum */ + -1, /* acc7_regnum */ + -1, /* acc0123_regnum */ + -1, /* acc4567_regnum */ + H_SPR_MSR0, /* msr0_regnum */ + H_SPR_MSR1, /* msr1_regnum */ + H_SPR_GNER0, /* gner0_regnum */ + H_SPR_GNER1, /* gner1_regnum */ + H_SPR_FNER0, /* fner0_regnum */ + H_SPR_FNER1, /* fner1_regnum */ + }; gdb_assert (reg >= 0 && reg < gdbarch_num_regs (gdbarch)); @@ -412,10 +409,10 @@ frv_register_sim_regno (struct gdbarch *gdbarch, int reg) return SIM_FRV_SPR0_REGNUM + spr_reg_offset; } - internal_error (_("Bad register number %d"), reg); + internal_error (_ ("Bad register number %d"), reg); } -constexpr gdb_byte frv_break_insn[] = {0xc0, 0x70, 0x00, 0x01}; +constexpr gdb_byte frv_break_insn[] = { 0xc0, 0x70, 0x00, 0x01 }; typedef BP_MANIPULATION (frv_break_insn) frv_breakpoint; @@ -464,27 +461,22 @@ frv_adjust_breakpoint_address (struct gdbarch *gdbarch, CORE_ADDR bpaddr) return bpaddr; } - /* Return true if REG is a caller-saves ("scratch") register, false otherwise. */ static int is_caller_saves_reg (int reg) { - return ((4 <= reg && reg <= 7) - || (14 <= reg && reg <= 15) + return ((4 <= reg && reg <= 7) || (14 <= reg && reg <= 15) || (32 <= reg && reg <= 47)); } - /* Return true if REG is a callee-saves register, false otherwise. */ static int is_callee_saves_reg (int reg) { - return ((16 <= reg && reg <= 31) - || (48 <= reg && reg <= 63)); + return ((16 <= reg && reg <= 31) || (48 <= reg && reg <= 63)); } - /* Return true if REG is an argument register, false otherwise. */ static int is_argument_reg (int reg) @@ -506,8 +498,7 @@ is_argument_reg (int reg) prologue analysis. */ static CORE_ADDR frv_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, - frame_info_ptr this_frame, - struct frv_unwind_cache *info) + frame_info_ptr this_frame, struct frv_unwind_cache *info) { enum bfd_endian byte_order = gdbarch_byte_order (gdbarch); @@ -696,10 +687,10 @@ frv_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, We treat this as part of the prologue, and record the register's saved address in the frame structure. */ else if ((op & 0x01ffffff) == 0x000c10c0 - || (op & 0x01ffffff) == 0x000c1100) + || (op & 0x01ffffff) == 0x000c1100) { int gr_k = ((op >> 25) & 0x3f); - int ope = ((op >> 6) & 0x3f); + int ope = ((op >> 6) & 0x3f); int count; int i; @@ -797,7 +788,7 @@ frv_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, . . . . . . . . We check that GRk is really an argument register, and treat all such as part of the prologue. */ - else if ( (op & 0x01fff000) == 0x01442000 + else if ((op & 0x01fff000) == 0x01442000 || (op & 0x01fff000) == 0x01402000) { int gr_k = ((op >> 25) & 0x3f); @@ -822,7 +813,7 @@ frv_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, We treat this as part of the prologue, and record the register's saved address in the frame structure. */ else if ((op & 0x01fff000) == 0x014c1000 - || (op & 0x01fff000) == 0x01501000) + || (op & 0x01fff000) == 0x01501000) { int gr_k = ((op >> 25) & 0x3f); int count; @@ -865,7 +856,7 @@ frv_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, instructions fall into this pattern, so let's decode the instruction once, and then work at a higher level. */ else if (((op & 0x01fc0fff) == 0x000c0080) - || ((op & 0x01fc0000) == 0x01480000)) + || ((op & 0x01fc0000) == 0x01480000)) { int gr_k = ((op >> 25) & 0x3f); int gr_i = ((op >> 12) & 0x3f); @@ -895,8 +886,7 @@ frv_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, /* Saving callee-saves register(s) on the stack, relative to the SP. */ - else if (gr_i == sp_regnum - && is_callee_saves_reg (gr_k)) + else if (gr_i == sp_regnum && is_callee_saves_reg (gr_k)) { gr_saved[gr_k] = 1; if (gr_i == sp_regnum) @@ -907,8 +897,7 @@ frv_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, } /* Saving the scratch register holding the return address. */ - else if (lr_save_reg != -1 - && gr_k == lr_save_reg) + else if (lr_save_reg != -1 && gr_k == lr_save_reg) { lr_saved_on_stack = 1; if (gr_i == sp_regnum) @@ -966,7 +955,6 @@ frv_analyze_prologue (struct gdbarch *gdbarch, CORE_ADDR pc, return last_prologue_pc; } - static CORE_ADDR frv_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) { @@ -998,7 +986,6 @@ frv_skip_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) return new_pc; } - /* Examine the instruction pointed to by PC. If it corresponds to a call to __main, return the address of the next instruction. Otherwise, return PC. */ @@ -1067,8 +1054,7 @@ frv_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) call_dest = pc + 4 * displ; s = lookup_minimal_symbol_by_pc (call_dest); - if (s.minsym != NULL - && s.minsym->linkage_name () != NULL + if (s.minsym != NULL && s.minsym->linkage_name () != NULL && strcmp (s.minsym->linkage_name (), "__main") == 0) { pc += 4; @@ -1078,10 +1064,8 @@ frv_skip_main_prologue (struct gdbarch *gdbarch, CORE_ADDR pc) return orig_pc; } - static struct frv_unwind_cache * -frv_frame_unwind_cache (frame_info_ptr this_frame, - void **this_prologue_cache) +frv_frame_unwind_cache (frame_info_ptr this_frame, void **this_prologue_cache) { struct gdbarch *gdbarch = get_frame_arch (this_frame); struct frv_unwind_cache *info; @@ -1094,8 +1078,8 @@ frv_frame_unwind_cache (frame_info_ptr this_frame, info->saved_regs = trad_frame_alloc_saved_regs (this_frame); /* Prologue analysis does the rest... */ - frv_analyze_prologue (gdbarch, - get_frame_func (this_frame), this_frame, info); + frv_analyze_prologue (gdbarch, get_frame_func (this_frame), this_frame, + info); return info; } @@ -1124,7 +1108,7 @@ frv_extract_return_value (struct type *type, struct regcache *regcache, store_unsigned_integer ((bfd_byte *) valbuf + 4, 4, byte_order, regval); } else - internal_error (_("Illegal return value length: %d"), len); + internal_error (_ ("Illegal return value length: %d"), len); } static CORE_ADDR @@ -1184,8 +1168,8 @@ frv_convert_from_func_ptr_addr (struct gdbarch *gdbarch, CORE_ADDR addr, static CORE_ADDR frv_push_dummy_call (struct gdbarch *gdbarch, struct value *function, - struct regcache *regcache, CORE_ADDR bp_addr, - int nargs, struct value **args, CORE_ADDR sp, + struct regcache *regcache, CORE_ADDR bp_addr, int nargs, + struct value **args, CORE_ADDR sp, function_call_return_method return_method, CORE_ADDR struct_addr) { @@ -1237,21 +1221,19 @@ frv_push_dummy_call (struct gdbarch *gdbarch, struct value *function, if (typecode == TYPE_CODE_STRUCT || typecode == TYPE_CODE_UNION) { - store_unsigned_integer (valbuf, 4, byte_order, - value_address (arg)); + store_unsigned_integer (valbuf, 4, byte_order, value_address (arg)); typecode = TYPE_CODE_PTR; len = 4; val = valbuf; } - else if (abi == FRV_ABI_FDPIC - && len == 4 - && typecode == TYPE_CODE_PTR + else if (abi == FRV_ABI_FDPIC && len == 4 && typecode == TYPE_CODE_PTR && arg_type->target_type ()->code () == TYPE_CODE_FUNC) { /* The FDPIC ABI requires function descriptors to be passed instead of entry points. */ - CORE_ADDR addr = extract_unsigned_integer - (value_contents (arg).data (), 4, byte_order); + CORE_ADDR addr + = extract_unsigned_integer (value_contents (arg).data (), 4, + byte_order); addr = find_func_descr (gdbarch, addr); store_unsigned_integer (valbuf, 4, byte_order, addr); typecode = TYPE_CODE_PTR; @@ -1299,9 +1281,9 @@ frv_push_dummy_call (struct gdbarch *gdbarch, struct value *function, if (abi == FRV_ABI_FDPIC) { /* Set the GOT register for the FDPIC ABI. */ - regcache_cooked_write_unsigned - (regcache, first_gpr_regnum + 15, - frv_fdpic_find_global_pointer (func_addr)); + regcache_cooked_write_unsigned ( + regcache, first_gpr_regnum + 15, + frv_fdpic_find_global_pointer (func_addr)); } /* Finally, update the SP register. */ @@ -1329,7 +1311,7 @@ frv_store_return_value (struct type *type, struct regcache *regcache, regcache->cooked_write (9, (bfd_byte *) valbuf + 4); } else - internal_error (_("Don't know how to return a %d-byte value."), len); + internal_error (_ ("Don't know how to return a %d-byte value."), len); } static enum return_value_convention @@ -1363,8 +1345,8 @@ frv_return_value (struct gdbarch *gdbarch, struct value *function, frame. This will be used to create a new GDB frame struct. */ static void -frv_frame_this_id (frame_info_ptr this_frame, - void **this_prologue_cache, struct frame_id *this_id) +frv_frame_this_id (frame_info_ptr this_frame, void **this_prologue_cache, + struct frame_id *this_id) { struct frv_unwind_cache *info = frv_frame_unwind_cache (this_frame, this_prologue_cache); @@ -1393,23 +1375,22 @@ frv_frame_this_id (frame_info_ptr this_frame, } static struct value * -frv_frame_prev_register (frame_info_ptr this_frame, - void **this_prologue_cache, int regnum) +frv_frame_prev_register (frame_info_ptr this_frame, void **this_prologue_cache, + int regnum) { struct frv_unwind_cache *info = frv_frame_unwind_cache (this_frame, this_prologue_cache); return trad_frame_get_prev_register (this_frame, info->saved_regs, regnum); } -static const struct frame_unwind frv_frame_unwind = { - "frv prologue", - NORMAL_FRAME, - default_frame_unwind_stop_reason, - frv_frame_this_id, - frv_frame_prev_register, - NULL, - default_frame_sniffer -}; +static const struct frame_unwind frv_frame_unwind + = { "frv prologue", + NORMAL_FRAME, + default_frame_unwind_stop_reason, + frv_frame_this_id, + frv_frame_prev_register, + NULL, + default_frame_sniffer }; static CORE_ADDR frv_frame_base_address (frame_info_ptr this_frame, void **this_cache) @@ -1419,12 +1400,9 @@ frv_frame_base_address (frame_info_ptr this_frame, void **this_cache) return info->base; } -static const struct frame_base frv_frame_base = { - &frv_frame_unwind, - frv_frame_base_address, - frv_frame_base_address, - frv_frame_base_address -}; +static const struct frame_base frv_frame_base + = { &frv_frame_unwind, frv_frame_base_address, frv_frame_base_address, + frv_frame_base_address }; static struct gdbarch * frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) @@ -1501,8 +1479,8 @@ frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) set_gdbarch_skip_main_prologue (gdbarch, frv_skip_main_prologue); set_gdbarch_breakpoint_kind_from_pc (gdbarch, frv_breakpoint::kind_from_pc); set_gdbarch_sw_breakpoint_from_kind (gdbarch, frv_breakpoint::bp_from_kind); - set_gdbarch_adjust_breakpoint_address - (gdbarch, frv_adjust_breakpoint_address); + set_gdbarch_adjust_breakpoint_address (gdbarch, + frv_adjust_breakpoint_address); set_gdbarch_return_value (gdbarch, frv_return_value); @@ -1565,6 +1543,7 @@ frv_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) } void _initialize_frv_tdep (); + void _initialize_frv_tdep () { |