diff options
Diffstat (limited to 'gdb/m68hc11-tdep.c')
| -rw-r--r-- | gdb/m68hc11-tdep.c | 125 |
1 files changed, 99 insertions, 26 deletions
diff --git a/gdb/m68hc11-tdep.c b/gdb/m68hc11-tdep.c index 69c54d1..6af823e 100644 --- a/gdb/m68hc11-tdep.c +++ b/gdb/m68hc11-tdep.c @@ -33,6 +33,7 @@ Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA. */ #include "objfiles.h" #include "arch-utils.h" #include "regcache.h" +#include "reggroups.h" #include "target.h" #include "opcode/m68hc11.h" @@ -441,7 +442,7 @@ m68hc11_pop_frame (void) else { fp = get_frame_base (frame); - FRAME_INIT_SAVED_REGS (frame); + DEPRECATED_FRAME_INIT_SAVED_REGS (frame); /* Copy regs from where they were saved in the frame. */ for (regnum = 0; regnum < M68HC11_ALL_REGS; regnum++) @@ -464,24 +465,27 @@ m68hc11_pop_frame (void) /* 68HC11 opcodes. */ #undef M6811_OP_PAGE2 -#define M6811_OP_PAGE2 (0x18) -#define M6811_OP_LDX (0xde) -#define M6811_OP_PSHX (0x3c) -#define M6811_OP_STS (0x9f) -#define M6811_OP_TSX (0x30) -#define M6811_OP_XGDX (0x8f) -#define M6811_OP_ADDD (0xc3) -#define M6811_OP_TXS (0x35) -#define M6811_OP_DES (0x34) +#define M6811_OP_PAGE2 (0x18) +#define M6811_OP_LDX (0xde) +#define M6811_OP_LDX_EXT (0xfe) +#define M6811_OP_PSHX (0x3c) +#define M6811_OP_STS (0x9f) +#define M6811_OP_STS_EXT (0xbf) +#define M6811_OP_TSX (0x30) +#define M6811_OP_XGDX (0x8f) +#define M6811_OP_ADDD (0xc3) +#define M6811_OP_TXS (0x35) +#define M6811_OP_DES (0x34) /* 68HC12 opcodes. */ -#define M6812_OP_PAGE2 (0x18) -#define M6812_OP_MOVW (0x01) -#define M6812_PB_PSHW (0xae) -#define M6812_OP_STS (0x7f) -#define M6812_OP_LEAS (0x1b) -#define M6812_OP_PSHX (0x34) -#define M6812_OP_PSHY (0x35) +#define M6812_OP_PAGE2 (0x18) +#define M6812_OP_MOVW (0x01) +#define M6812_PB_PSHW (0xae) +#define M6812_OP_STS (0x5f) +#define M6812_OP_STS_EXT (0x7f) +#define M6812_OP_LEAS (0x1b) +#define M6812_OP_PSHX (0x34) +#define M6812_OP_PSHY (0x35) /* Operand extraction. */ #define OP_DIRECT (0x100) /* 8-byte direct addressing. */ @@ -513,6 +517,10 @@ static struct insn_sequence m6811_prologue[] = { M6811_OP_PSHX } }, { P_SAVE_REG, 5, { M6811_OP_PAGE2, M6811_OP_LDX, OP_DIRECT, M6811_OP_PAGE2, M6811_OP_PSHX } }, + { P_SAVE_REG, 4, { M6811_OP_LDX_EXT, OP_IMM_HIGH, OP_IMM_LOW, + M6811_OP_PSHX } }, + { P_SAVE_REG, 6, { M6811_OP_PAGE2, M6811_OP_LDX_EXT, OP_IMM_HIGH, OP_IMM_LOW, + M6811_OP_PAGE2, M6811_OP_PSHX } }, /* Sequences to allocate local variables. */ { P_LOCAL_N, 7, { M6811_OP_TSX, @@ -531,6 +539,7 @@ static struct insn_sequence m6811_prologue[] = { /* Initialize the frame pointer. */ { P_SET_FRAME, 2, { M6811_OP_STS, OP_DIRECT } }, + { P_SET_FRAME, 3, { M6811_OP_STS_EXT, OP_IMM_HIGH, OP_IMM_LOW } }, { P_LAST, 0, { 0 } } }; @@ -539,7 +548,8 @@ static struct insn_sequence m6811_prologue[] = { static struct insn_sequence m6812_prologue[] = { { P_SAVE_REG, 5, { M6812_OP_PAGE2, M6812_OP_MOVW, M6812_PB_PSHW, OP_IMM_HIGH, OP_IMM_LOW } }, - { P_SET_FRAME, 3, { M6812_OP_STS, OP_IMM_HIGH, OP_IMM_LOW } }, + { P_SET_FRAME, 2, { M6812_OP_STS, OP_DIRECT } }, + { P_SET_FRAME, 3, { M6812_OP_STS_EXT, OP_IMM_HIGH, OP_IMM_LOW } }, { P_LOCAL_N, 2, { M6812_OP_LEAS, OP_PBYTE } }, { P_LOCAL_2, 1, { M6812_OP_PSHX } }, { P_LOCAL_2, 1, { M6812_OP_PSHY } }, @@ -806,8 +816,8 @@ m68hc11_skip_prologue (CORE_ADDR pc) /* Given a GDB frame, determine the address of the calling function's frame. This will be used to create a new GDB frame struct, and - then INIT_EXTRA_FRAME_INFO and DEPRECATED_INIT_FRAME_PC will be - called for the new frame. */ + then DEPRECATED_INIT_EXTRA_FRAME_INFO and DEPRECATED_INIT_FRAME_PC + will be called for the new frame. */ static CORE_ADDR m68hc11_frame_chain (struct frame_info *frame) @@ -1205,6 +1215,66 @@ gdb_print_insn_m68hc11 (bfd_vma memaddr, disassemble_info *info) return print_insn_m68hc12 (memaddr, info); } + + +/* 68HC11/68HC12 register groups. + Identify real hard registers and soft registers used by gcc. */ + +static struct reggroup *m68hc11_soft_reggroup; +static struct reggroup *m68hc11_hard_reggroup; + +static void +m68hc11_init_reggroups (void) +{ + m68hc11_hard_reggroup = reggroup_new ("hard", USER_REGGROUP); + m68hc11_soft_reggroup = reggroup_new ("soft", USER_REGGROUP); +} + +static void +m68hc11_add_reggroups (struct gdbarch *gdbarch) +{ + reggroup_add (gdbarch, m68hc11_hard_reggroup); + reggroup_add (gdbarch, m68hc11_soft_reggroup); + reggroup_add (gdbarch, general_reggroup); + reggroup_add (gdbarch, float_reggroup); + reggroup_add (gdbarch, all_reggroup); + reggroup_add (gdbarch, save_reggroup); + reggroup_add (gdbarch, restore_reggroup); + reggroup_add (gdbarch, vector_reggroup); + reggroup_add (gdbarch, system_reggroup); +} + +static int +m68hc11_register_reggroup_p (struct gdbarch *gdbarch, int regnum, + struct reggroup *group) +{ + /* We must save the real hard register as well as gcc + soft registers including the frame pointer. */ + if (group == save_reggroup || group == restore_reggroup) + { + return (regnum <= gdbarch_num_regs (gdbarch) + || ((regnum == SOFT_FP_REGNUM + || regnum == SOFT_TMP_REGNUM + || regnum == SOFT_ZS_REGNUM + || regnum == SOFT_XY_REGNUM) + && m68hc11_register_name (regnum))); + } + + /* Group to identify gcc soft registers (d1..dN). */ + if (group == m68hc11_soft_reggroup) + { + return regnum >= SOFT_D1_REGNUM && m68hc11_register_name (regnum); + } + + if (group == m68hc11_hard_reggroup) + { + return regnum == HARD_PC_REGNUM || regnum == HARD_SP_REGNUM + || regnum == HARD_X_REGNUM || regnum == HARD_D_REGNUM + || regnum == HARD_Y_REGNUM || regnum == HARD_CCR_REGNUM; + } + return default_register_reggroup_p (gdbarch, regnum, group); +} + static struct gdbarch * m68hc11_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) @@ -1283,16 +1353,16 @@ m68hc11_gdbarch_init (struct gdbarch_info info, set_gdbarch_int_bit (gdbarch, elf_flags & E_M68HC11_I32 ? 32 : 16); set_gdbarch_float_bit (gdbarch, 32); set_gdbarch_double_bit (gdbarch, elf_flags & E_M68HC11_F64 ? 64 : 32); - set_gdbarch_long_double_bit (gdbarch, elf_flags & E_M68HC11_F64 ? 64 : 32); + set_gdbarch_long_double_bit (gdbarch, 64); set_gdbarch_long_bit (gdbarch, 32); set_gdbarch_ptr_bit (gdbarch, 16); set_gdbarch_long_long_bit (gdbarch, 64); /* Set register info. */ set_gdbarch_fp0_regnum (gdbarch, -1); - set_gdbarch_max_register_raw_size (gdbarch, 2); - set_gdbarch_max_register_virtual_size (gdbarch, 2); - set_gdbarch_frame_init_saved_regs (gdbarch, m68hc11_frame_init_saved_regs); + set_gdbarch_deprecated_max_register_raw_size (gdbarch, 2); + set_gdbarch_deprecated_max_register_virtual_size (gdbarch, 2); + set_gdbarch_deprecated_frame_init_saved_regs (gdbarch, m68hc11_frame_init_saved_regs); set_gdbarch_frame_args_skip (gdbarch, 0); set_gdbarch_read_pc (gdbarch, generic_target_read_pc); @@ -1324,7 +1394,6 @@ m68hc11_gdbarch_init (struct gdbarch_info info, set_gdbarch_fix_call_dummy (gdbarch, generic_fix_call_dummy); set_gdbarch_deprecated_extract_return_value (gdbarch, m68hc11_extract_return_value); set_gdbarch_push_arguments (gdbarch, m68hc11_push_arguments); - set_gdbarch_push_dummy_frame (gdbarch, generic_push_dummy_frame); set_gdbarch_push_return_address (gdbarch, m68hc11_push_return_address); set_gdbarch_return_value_on_stack (gdbarch, m68hc11_return_value_on_stack); @@ -1348,7 +1417,7 @@ m68hc11_gdbarch_init (struct gdbarch_info info, set_gdbarch_deprecated_extract_struct_value_address (gdbarch, m68hc11_extract_struct_value_address); set_gdbarch_use_struct_convention (gdbarch, m68hc11_use_struct_convention); - set_gdbarch_init_extra_frame_info (gdbarch, m68hc11_init_extra_frame_info); + set_gdbarch_deprecated_init_extra_frame_info (gdbarch, m68hc11_init_extra_frame_info); set_gdbarch_pop_frame (gdbarch, m68hc11_pop_frame); set_gdbarch_skip_prologue (gdbarch, m68hc11_skip_prologue); set_gdbarch_inner_than (gdbarch, core_addr_lessthan); @@ -1358,6 +1427,9 @@ m68hc11_gdbarch_init (struct gdbarch_info info, set_gdbarch_stack_align (gdbarch, m68hc11_stack_align); set_gdbarch_print_insn (gdbarch, gdb_print_insn_m68hc11); + m68hc11_add_reggroups (gdbarch); + set_gdbarch_register_reggroup_p (gdbarch, m68hc11_register_reggroup_p); + /* Minsymbol frobbing. */ set_gdbarch_elf_make_msymbol_special (gdbarch, m68hc11_elf_make_msymbol_special); @@ -1372,6 +1444,7 @@ _initialize_m68hc11_tdep (void) { register_gdbarch_init (bfd_arch_m68hc11, m68hc11_gdbarch_init); register_gdbarch_init (bfd_arch_m68hc12, m68hc11_gdbarch_init); + m68hc11_init_reggroups (); add_com ("regs", class_vars, show_regs, "Print all registers"); } |