index 0941202d51a6b6ebf17baf2896a8bc3cb49e10ec..cc9c3474da0c321db792d28041ccf4079e741867 100644 (file)
* SUCH DAMAGE.
*/
-/*
- * machine/setjmp.h: machine dependent setjmp-related information.
- */
-
/* _JBLEN is the size of a jmp_buf in longs.
* Do not modify this value or you will break the ABI !
*
* that was replaced by this one.
*/
#define _JBLEN 64
-
-/* According to the ARM AAPCS document, we only need to save
- * the following registers:
- *
- * Core r4-r14
- *
- * VFP d8-d15 (see section 5.1.2.1)
- *
- * Registers s16-s31 (d8-d15, q4-q7) must be preserved across subroutine
- * calls; registers s0-s15 (d0-d7, q0-q3) do not need to be preserved
- * (and can be used for passing arguments or returning results in standard
- * procedure-call variants). Registers d16-d31 (q8-q15), if present, do
- * not need to be preserved.
- *
- * FPSCR saved because GLibc does saves it too.
- *
- */
-
-/* The internal structure of a jmp_buf is totally private.
- * Current layout (may change in the future):
- *
- * word name description
- * 0 magic magic number
- * 1 sigmask signal mask (not used with _setjmp / _longjmp)
- * 2 float_base base of float registers (d8 to d15)
- * 18 float_state floating-point status and control register
- * 19 core_base base of core registers (r4 to r14)
- * 30 reserved reserved entries (room to grow)
- * 64
- *
- * NOTE: float_base must be at an even word index, since the
- * FP registers will be loaded/stored with instructions
- * that expect 8-byte alignment.
- */
-
-#define _JB_MAGIC 0
-#define _JB_SIGMASK (_JB_MAGIC+1)
-#define _JB_FLOAT_BASE (_JB_SIGMASK+1)
-#define _JB_FLOAT_STATE (_JB_FLOAT_BASE + (15-8+1)*2)
-#define _JB_CORE_BASE (_JB_FLOAT_STATE+1)
-
-#define _JB_MAGIC__SETJMP 0x4278f500
-#define _JB_MAGIC_SETJMP 0x4278f501