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| <h3 class="section">G.3 Predefined Target Types</h3> |
| |
| <p><a name="index-target-descriptions_002c-predefined-types-3655"></a> |
| 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 <span class="sc">gdb</span> for the fundamental |
| types. The currently supported types are: |
| |
| <dl> |
| <dt><code>bool</code><dd>Boolean type, occupying a single bit. |
| |
| <br><dt><code>int8</code><dt><code>int16</code><dt><code>int24</code><dt><code>int32</code><dt><code>int64</code><dt><code>int128</code><dd>Signed integer types holding the specified number of bits. |
| |
| <br><dt><code>uint8</code><dt><code>uint16</code><dt><code>uint24</code><dt><code>uint32</code><dt><code>uint64</code><dt><code>uint128</code><dd>Unsigned integer types holding the specified number of bits. |
| |
| <br><dt><code>code_ptr</code><dt><code>data_ptr</code><dd>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. |
| |
| <br><dt><code>ieee_single</code><dd>Single precision IEEE floating point. |
| |
| <br><dt><code>ieee_double</code><dd>Double precision IEEE floating point. |
| |
| <br><dt><code>arm_fpa_ext</code><dd>The 12-byte extended precision format used by ARM FPA registers. |
| |
| <br><dt><code>i387_ext</code><dd>The 10-byte extended precision format used by x87 registers. |
| |
| <br><dt><code>i386_eflags</code><dd>32bit <span class="sc">eflags</span> register used by x86. |
| |
| <br><dt><code>i386_mxcsr</code><dd>32bit <span class="sc">mxcsr</span> register used by x86. |
| |
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