1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
|
#define __ASSEMBLY
#include "psr.h"
#include "asm/asi.h"
.text
.align 4
#define STACKFRAME_SZ 0x60
/* These are just handy. */
#define _SV save %sp, -STACKFRAME_SZ, %sp
#define _RS restore
#define FLUSH_ALL_KERNEL_WINDOWS \
_SV; _SV; _SV; _SV; _SV; _SV; _SV; \
_RS; _RS; _RS; _RS; _RS; _RS; _RS;
/* Macro for romvec handlers */
#define ROMVEC_HANDLER(type) \
\
.globl type##_handler; \
\
type##_handler: \
\
FLUSH_ALL_KERNEL_WINDOWS; \
\
save %sp, -STACKFRAME_SZ - 0x20, %sp; \
\
st %g1, [ %sp + STACKFRAME_SZ + 0x0]; \
st %g2, [ %sp + STACKFRAME_SZ + 0x4]; \
st %g3, [ %sp + STACKFRAME_SZ + 0x8]; \
st %g4, [ %sp + STACKFRAME_SZ + 0xc]; \
st %g5, [ %sp + STACKFRAME_SZ + 0x10]; \
st %g6, [ %sp + STACKFRAME_SZ + 0x14]; \
st %g7, [ %sp + STACKFRAME_SZ + 0x18]; \
\
mov %i0, %o0; \
mov %i1, %o1; \
mov %i2, %o2; \
mov %i3, %o3; \
mov %i4, %o4; \
mov %i5, %o5; \
\
call type; \
nop; \
\
mov %o0, %i0; \
\
ld [ %sp + STACKFRAME_SZ + 0x0], %g1; \
ld [ %sp + STACKFRAME_SZ + 0x4], %g2; \
ld [ %sp + STACKFRAME_SZ + 0x8], %g3; \
ld [ %sp + STACKFRAME_SZ + 0xc], %g4; \
ld [ %sp + STACKFRAME_SZ + 0x10], %g5; \
ld [ %sp + STACKFRAME_SZ + 0x14], %g6; \
ld [ %sp + STACKFRAME_SZ + 0x18], %g7; \
\
ret; \
restore; \
/* Generate handlers which are proxy functions to the
real C functions that correctly save the globals
and stack */
ROMVEC_HANDLER(obp_devopen)
ROMVEC_HANDLER(obp_devclose)
ROMVEC_HANDLER(obp_rdblkdev)
ROMVEC_HANDLER(obp_nbgetchar)
ROMVEC_HANDLER(obp_nbputchar)
ROMVEC_HANDLER(obp_putstr)
ROMVEC_HANDLER(obp_printf)
ROMVEC_HANDLER(obp_reboot)
ROMVEC_HANDLER(obp_abort)
ROMVEC_HANDLER(obp_halt)
ROMVEC_HANDLER(obp_fortheval_v2)
ROMVEC_HANDLER(obp_inst2pkg)
ROMVEC_HANDLER(obp_dumb_memalloc)
ROMVEC_HANDLER(obp_dumb_memfree)
ROMVEC_HANDLER(obp_dumb_mmap)
ROMVEC_HANDLER(obp_dumb_munmap)
ROMVEC_HANDLER(obp_devread)
ROMVEC_HANDLER(obp_devwrite)
ROMVEC_HANDLER(obp_devseek)
ROMVEC_HANDLER(obp_cpustart)
ROMVEC_HANDLER(obp_cpustop)
ROMVEC_HANDLER(obp_cpuidle)
ROMVEC_HANDLER(obp_cpuresume)
ROMVEC_HANDLER(obp_nextnode)
ROMVEC_HANDLER(obp_child)
ROMVEC_HANDLER(obp_proplen)
ROMVEC_HANDLER(obp_getprop)
ROMVEC_HANDLER(obp_setprop)
ROMVEC_HANDLER(obp_nextprop)
ROMVEC_HANDLER(obp_memalloc)
|
