G.3 Predefined Target Types
Type definitions in the self-description can build up composite types
from basic building blocks, but can not define fundamental types. Instead,
standard identifiers are provided by gdb for the fundamental
types. The currently supported types are:
- Boolean type, occupying a single bit.
- Signed integer types holding the specified number of bits.
- Unsigned integer types holding the specified number of bits.
- Pointers to unspecified code and data. The program counter and
any dedicated return address register may be marked as code
pointers; printing a code pointer converts it into a symbolic
address. The stack pointer and any dedicated address registers
may be marked as data pointers.
- Single precision IEEE floating point.
- Double precision IEEE floating point.
- The 12-byte extended precision format used by ARM FPA registers.
- The 10-byte extended precision format used by x87 registers.
- 32bit eflags register used by x86.
- 32bit mxcsr register used by x86.