Subversion Repositories HelenOS-historic

Rev

Rev 1137 | Go to most recent revision | Show entire file | Ignore whitespace | Details | Blame | Last modification | View Log | RSS feed

Rev 1137 Rev 1138
Line 34... Line 34...
34
#include <typedefs.h>
34
#include <typedefs.h>
35
#include <align.h>
35
#include <align.h>
36
#include <arch/stack.h>
36
#include <arch/stack.h>
37
 
37
 
38
/*
38
/*
39
 * context_save() and context_restore() are both leaf procedures.
39
 * context_save_arch() and context_restore_arch() are both leaf procedures.
40
 * No need to allocate scratch area.
40
 * No need to allocate scratch area.
41
 *
41
 *
42
 * One item is put onto the stack to support get_stack_base().
42
 * One item is put onto the stack to support get_stack_base().
43
 */
43
 */
44
#define SP_DELTA    (0+ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
44
#define SP_DELTA    (0+ALIGN_UP(STACK_ITEM_SIZE, STACK_ALIGNMENT))
45
 
45
 
46
#ifdef context_set
46
#ifdef context_set
47
#undef context_set
47
#undef context_set
48
#endif
48
#endif
49
 
49
 
50
/*RSE stack should begin under bottom of stack @ kernel*/
50
/* RSE stack starts at the bottom of memory stack. */
51
#define context_set(c, _pc, stack, size)                                \
51
#define context_set(c, _pc, stack, size)                                \
-
 
52
    do {                                                \
52
    (c)->pc = (__address) _pc;                                  \
53
        (c)->pc = (__address) _pc;                              \
53
    (c)->bsp = ((__address) stack) + ALIGN_UP((size), STACK_ALIGNMENT) ;    \
54
        (c)->bsp = ((__address) stack) + ALIGN_UP((size), REGISTER_STACK_ALIGNMENT);        \
54
    (c)->ar_pfs &= PFM_MASK;                                    \
55
        (c)->ar_pfs &= PFM_MASK;                                \
55
    (c)->sp = ((__address) stack) + ALIGN_UP((size), STACK_ALIGNMENT) - SP_DELTA;
56
        (c)->sp = ((__address) stack) + ALIGN_UP((size), STACK_ALIGNMENT) - SP_DELTA;       \
-
 
57
    } while (0);
56
 
58
 
57
/*
59
/*
58
 * Only save registers that must be preserved across
60
 * Only save registers that must be preserved across
59
 * function calls.
61
 * function calls.
60
 */
62
 */
Line 120... Line 122...
120
    __r128 f31;
122
    __r128 f31;
121
   
123
   
122
    ipl_t ipl;
124
    ipl_t ipl;
123
};
125
};
124
 
126
 
125
 
-
 
126
 
-
 
127
#endif
127
#endif