diff options
Diffstat (limited to 'gdb/m68k-tdep.c')
| -rw-r--r-- | gdb/m68k-tdep.c | 57 |
1 files changed, 44 insertions, 13 deletions
diff --git a/gdb/m68k-tdep.c b/gdb/m68k-tdep.c index 1c4bc4d4d1f..05a3e50fdec 100644 --- a/gdb/m68k-tdep.c +++ b/gdb/m68k-tdep.c @@ -81,11 +81,11 @@ delta68_frame_args_address (struct frame_info *frame_info) return frame_info->frame + 12; else if (frameless_look_for_prologue (frame_info)) { - /* Check for an interrupted system call */ - if (frame_info->next && frame_info->next->signal_handler_caller) - return frame_info->next->frame + 16; - else - return frame_info->frame + 4; + /* Check for an interrupted system call */ + if (frame_info->next && frame_info->next->signal_handler_caller) + return frame_info->next->frame + 16; + else + return frame_info->frame + 4; } else return frame_info->frame; @@ -226,7 +226,8 @@ m68k_pop_frame (void) } if (fsr.regs[PS_REGNUM]) { - write_register (PS_REGNUM, read_memory_integer (fsr.regs[PS_REGNUM], 4)); + write_register (PS_REGNUM, + read_memory_integer (fsr.regs[PS_REGNUM], 4)); } write_register (FP_REGNUM, read_memory_integer (fp, 4)); write_register (PC_REGNUM, read_memory_integer (fp + 4, 4)); @@ -278,7 +279,7 @@ m68k_skip_prologue (CORE_ADDR ip) If so, ensure we don't go past it. If not, assume "infinity". */ sal = find_pc_line (ip, 0); - limit = (sal.end) ? sal.end : (CORE_ADDR) ~ 0; + limit = (sal.end) ? sal.end : (CORE_ADDR) ~0; while (ip < limit) { @@ -298,7 +299,7 @@ m68k_skip_prologue (CORE_ADDR ip) else if (op == P_FMOVM) ip += 10; /* Skip fmovm */ else - break; /* Found unknown code, bail out. */ + break; /* Found unknown code, bail out. */ } return (ip); } @@ -314,7 +315,7 @@ m68k_find_saved_regs (struct frame_info *frame_info, /* First possible address for a pc in a call dummy for this frame. */ CORE_ADDR possible_call_dummy_start = - (frame_info)->frame - CALL_DUMMY_LENGTH - FP_REGNUM * 4 - 4 - 8 * 12; + (frame_info)->frame - CALL_DUMMY_LENGTH - FP_REGNUM * 4 - 4 - 8 * 12; int nextinsn; memset (saved_regs, 0, sizeof (*saved_regs)); @@ -367,7 +368,7 @@ m68k_find_saved_regs (struct frame_info *frame_info, next_addr += read_memory_integer (pc += 2, 4), pc += 4; } - for ( ; ; ) + for (;;) { nextinsn = 0xffff & read_memory_integer (pc, 2); regmask = read_memory_integer (pc + 2, 2); @@ -636,9 +637,8 @@ m68k_get_longjmp_target (CORE_ADDR *pc) buf = alloca (TARGET_PTR_BIT / TARGET_CHAR_BIT); sp = read_register (SP_REGNUM); - if (target_read_memory (sp + SP_ARG0, /* Offset of first arg on stack */ - buf, - TARGET_PTR_BIT / TARGET_CHAR_BIT)) + if (target_read_memory (sp + SP_ARG0, /* Offset of first arg on stack */ + buf, TARGET_PTR_BIT / TARGET_CHAR_BIT)) return 0; jb_addr = extract_address (buf, TARGET_PTR_BIT / TARGET_CHAR_BIT); @@ -677,9 +677,40 @@ m68k_saved_pc_after_call (struct frame_info *frame) return read_memory_integer (read_register (SP_REGNUM), 4); } +/* Function: m68k_gdbarch_init + Initializer function for the m68k gdbarch vector. + Called by gdbarch. Sets up the gdbarch vector(s) for this target. */ + +static struct gdbarch * +m68k_gdbarch_init (struct gdbarch_info info, struct gdbarch_list *arches) +{ + struct gdbarch_tdep *tdep = NULL; + struct gdbarch *gdbarch; + + /* find a candidate among the list of pre-declared architectures. */ + arches = gdbarch_list_lookup_by_info (arches, &info); + if (arches != NULL) + return (arches->gdbarch); + +#if 0 + tdep = (struct gdbarch_tdep *) xmalloc (sizeof (struct gdbarch_tdep)); +#endif + + gdbarch = gdbarch_alloc (&info, 0); + + return gdbarch; +} + + +static void +m68k_dump_tdep (struct gdbarch *current_gdbarch, struct ui_file *file) +{ + +} void _initialize_m68k_tdep (void) { + gdbarch_register (bfd_arch_m68k, m68k_gdbarch_init, m68k_dump_tdep); tm_print_insn = print_insn_m68k; } |