1/* libunwind - a platform-independent unwind library
2   Copyright (C) 2006-2007 IBM
3   Contributed by
4     Corey Ashford <cjashfor@us.ibm.com>
5     Jose Flavio Aguilar Paulino <jflavio@br.ibm.com> <joseflavio@gmail.com>
6
7This file is part of libunwind.
8
9Permission is hereby granted, free of charge, to any person obtaining
10a copy of this software and associated documentation files (the
11"Software"), to deal in the Software without restriction, including
12without limitation the rights to use, copy, modify, merge, publish,
13distribute, sublicense, and/or sell copies of the Software, and to
14permit persons to whom the Software is furnished to do so, subject to
15the following conditions:
16
17The above copyright notice and this permission notice shall be
18included in all copies or substantial portions of the Software.
19
20THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
21EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
22MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
23NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
24LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
25OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
26WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.  */
27
28#include "unwind_i.h"
29#include "dwarf_i.h"
30
31HIDDEN define_lock (ppc32_lock);
32HIDDEN int tdep_init_done;
33
34/* The API register numbers are exactly the same as the .eh_frame
35   registers, for now at least.  */
36HIDDEN const uint8_t dwarf_to_unw_regnum_map[DWARF_REGNUM_MAP_LENGTH] =
37  {
38	[UNW_PPC32_R0]=UNW_PPC32_R0,
39	[UNW_PPC32_R1]=UNW_PPC32_R1,
40	[UNW_PPC32_R2]=UNW_PPC32_R2,
41	[UNW_PPC32_R3]=UNW_PPC32_R3,
42	[UNW_PPC32_R4]=UNW_PPC32_R4,
43	[UNW_PPC32_R5]=UNW_PPC32_R5,
44	[UNW_PPC32_R6]=UNW_PPC32_R6,
45	[UNW_PPC32_R7]=UNW_PPC32_R7,
46	[UNW_PPC32_R8]=UNW_PPC32_R8,
47	[UNW_PPC32_R9]=UNW_PPC32_R9,
48	[UNW_PPC32_R10]=UNW_PPC32_R10,
49	[UNW_PPC32_R11]=UNW_PPC32_R11,
50	[UNW_PPC32_R12]=UNW_PPC32_R12,
51	[UNW_PPC32_R13]=UNW_PPC32_R13,
52	[UNW_PPC32_R14]=UNW_PPC32_R14,
53	[UNW_PPC32_R15]=UNW_PPC32_R15,
54	[UNW_PPC32_R16]=UNW_PPC32_R16,
55	[UNW_PPC32_R17]=UNW_PPC32_R17,
56	[UNW_PPC32_R18]=UNW_PPC32_R18,
57	[UNW_PPC32_R19]=UNW_PPC32_R19,
58	[UNW_PPC32_R20]=UNW_PPC32_R20,
59	[UNW_PPC32_R21]=UNW_PPC32_R21,
60	[UNW_PPC32_R22]=UNW_PPC32_R22,
61	[UNW_PPC32_R23]=UNW_PPC32_R23,
62	[UNW_PPC32_R24]=UNW_PPC32_R24,
63	[UNW_PPC32_R25]=UNW_PPC32_R25,
64	[UNW_PPC32_R26]=UNW_PPC32_R26,
65	[UNW_PPC32_R27]=UNW_PPC32_R27,
66	[UNW_PPC32_R28]=UNW_PPC32_R28,
67	[UNW_PPC32_R29]=UNW_PPC32_R29,
68	[UNW_PPC32_R30]=UNW_PPC32_R30,
69	[UNW_PPC32_R31]=UNW_PPC32_R31,
70
71	[UNW_PPC32_CTR]=UNW_PPC32_CTR,
72	[UNW_PPC32_XER]=UNW_PPC32_XER,
73	[UNW_PPC32_CCR]=UNW_PPC32_CCR,
74	[UNW_PPC32_LR]=UNW_PPC32_LR,
75	[UNW_PPC32_FPSCR]=UNW_PPC32_FPSCR,
76
77	[UNW_PPC32_F0]=UNW_PPC32_F0,
78	[UNW_PPC32_F1]=UNW_PPC32_F1,
79	[UNW_PPC32_F2]=UNW_PPC32_F2,
80	[UNW_PPC32_F3]=UNW_PPC32_F3,
81	[UNW_PPC32_F4]=UNW_PPC32_F4,
82	[UNW_PPC32_F5]=UNW_PPC32_F5,
83	[UNW_PPC32_F6]=UNW_PPC32_F6,
84	[UNW_PPC32_F7]=UNW_PPC32_F7,
85	[UNW_PPC32_F8]=UNW_PPC32_F8,
86	[UNW_PPC32_F9]=UNW_PPC32_F9,
87	[UNW_PPC32_F10]=UNW_PPC32_F10,
88	[UNW_PPC32_F11]=UNW_PPC32_F11,
89	[UNW_PPC32_F12]=UNW_PPC32_F12,
90	[UNW_PPC32_F13]=UNW_PPC32_F13,
91	[UNW_PPC32_F14]=UNW_PPC32_F14,
92	[UNW_PPC32_F15]=UNW_PPC32_F15,
93	[UNW_PPC32_F16]=UNW_PPC32_F16,
94	[UNW_PPC32_F17]=UNW_PPC32_F17,
95	[UNW_PPC32_F18]=UNW_PPC32_F18,
96	[UNW_PPC32_F19]=UNW_PPC32_F19,
97	[UNW_PPC32_F20]=UNW_PPC32_F20,
98	[UNW_PPC32_F21]=UNW_PPC32_F21,
99	[UNW_PPC32_F22]=UNW_PPC32_F22,
100	[UNW_PPC32_F23]=UNW_PPC32_F23,
101	[UNW_PPC32_F24]=UNW_PPC32_F24,
102	[UNW_PPC32_F25]=UNW_PPC32_F25,
103	[UNW_PPC32_F26]=UNW_PPC32_F26,
104	[UNW_PPC32_F27]=UNW_PPC32_F27,
105	[UNW_PPC32_F28]=UNW_PPC32_F28,
106	[UNW_PPC32_F29]=UNW_PPC32_F29,
107	[UNW_PPC32_F30]=UNW_PPC32_F30,
108	[UNW_PPC32_F31]=UNW_PPC32_F31,
109};
110
111HIDDEN void
112tdep_init (void)
113{
114  intrmask_t saved_mask;
115
116  sigfillset (&unwi_full_mask);
117
118  lock_acquire (&ppc32_lock, saved_mask);
119  {
120    if (tdep_init_done)
121      /* another thread else beat us to it... */
122      goto out;
123
124    mi_init ();
125
126    dwarf_init ();
127
128#ifndef UNW_REMOTE_ONLY
129    ppc32_local_addr_space_init ();
130#endif
131    tdep_init_done = 1;	/* signal that we're initialized... */
132  }
133 out:
134  lock_release (&ppc32_lock, saved_mask);
135}
136