/* Dynamic architecture support for GDB, the GNU debugger.
- Copyright (C) 1998-2015 Free Software Foundation, Inc.
+ Copyright (C) 1998-2016 Free Software Foundation, Inc.
This file is part of GDB.
return 0;
}
+int
+default_code_of_frame_writable (struct gdbarch *gdbarch,
+ struct frame_info *frame)
+{
+ return 1;
+}
+
/* Helper functions for gdbarch_inner_than */
int
*frame_offset = 0;
}
+/* Return a floating-point format for a floating-point variable of
+ length LEN in bits. If non-NULL, NAME is the name of its type.
+ If no suitable type is found, return NULL. */
+
+const struct floatformat **
+default_floatformat_for_type (struct gdbarch *gdbarch,
+ const char *name, int len)
+{
+ const struct floatformat **format = NULL;
+
+ if (len == gdbarch_half_bit (gdbarch))
+ format = gdbarch_half_format (gdbarch);
+ else if (len == gdbarch_float_bit (gdbarch))
+ format = gdbarch_float_format (gdbarch);
+ else if (len == gdbarch_double_bit (gdbarch))
+ format = gdbarch_double_format (gdbarch);
+ else if (len == gdbarch_long_double_bit (gdbarch))
+ format = gdbarch_long_double_format (gdbarch);
+ /* On i386 the 'long double' type takes 96 bits,
+ while the real number of used bits is only 80,
+ both in processor and in memory.
+ The code below accepts the real bit size. */
+ else if (gdbarch_long_double_format (gdbarch) != NULL
+ && len == gdbarch_long_double_format (gdbarch)[0]->totalsize)
+ format = gdbarch_long_double_format (gdbarch);
+
+ return format;
+}
\f
int
generic_convert_register_p (struct gdbarch *gdbarch, int regnum,
{
struct gdbarch *gdbarch = get_regcache_arch (regcache);
CORE_ADDR current_pc = regcache_read_pc (regcache);
- const gdb_byte *bp_insn;
int bp_len;
- bp_insn = gdbarch_breakpoint_from_pc (gdbarch, ¤t_pc, &bp_len);
+ gdbarch_breakpoint_from_pc (gdbarch, ¤t_pc, &bp_len);
current_pc += bp_len;
regcache_write_pc (regcache, current_pc);
}
return 1;
}
+void
+default_guess_tracepoint_registers (struct gdbarch *gdbarch,
+ struct regcache *regcache,
+ CORE_ADDR addr)
+{
+ int pc_regno = gdbarch_pc_regnum (gdbarch);
+ gdb_byte *regs;
+
+ /* This guessing code below only works if the PC register isn't
+ a pseudo-register. The value of a pseudo-register isn't stored
+ in the (non-readonly) regcache -- instead it's recomputed
+ (probably from some other cached raw register) whenever the
+ register is read. In this case, a custom method implementation
+ should be used by the architecture. */
+ if (pc_regno < 0 || pc_regno >= gdbarch_num_regs (gdbarch))
+ return;
+
+ regs = (gdb_byte *) alloca (register_size (gdbarch, pc_regno));
+ store_unsigned_integer (regs, register_size (gdbarch, pc_regno),
+ gdbarch_byte_order (gdbarch), addr);
+ regcache_raw_supply (regcache, pc_regno, regs);
+}
+
/* -Wmissing-prototypes */
extern initialize_file_ftype _initialize_gdbarch_utils;