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ppc-linux.h
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1 /* Copyright (C) 1995-2018 Free Software Foundation, Inc.
2
3 This file is part of GDB.
4
5 This program is free software; you can redistribute it and/or modify
6 it under the terms of the GNU General Public License as published by
7 the Free Software Foundation; either version 3 of the License, or
8 (at your option) any later version.
9
10 This program is distributed in the hope that it will be useful,
11 but WITHOUT ANY WARRANTY; without even the implied warranty of
12 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
13 GNU General Public License for more details.
14
15 You should have received a copy of the GNU General Public License
16 along with this program. If not, see <http://www.gnu.org/licenses/>. */
17
18 #ifndef PPC_LINUX_H
19 #define PPC_LINUX_H 1
20
21 #include <asm/ptrace.h>
22 #include <asm/cputable.h>
23
24 /* This sometimes isn't defined. */
25 #ifndef PT_ORIG_R3
26 #define PT_ORIG_R3 34
27 #endif
28 #ifndef PT_TRAP
29 #define PT_TRAP 40
30 #endif
31
32 /* The PPC_FEATURE_* defines should be provided by <asm/cputable.h>.
33 If they aren't, we can provide them ourselves (their values are fixed
34 because they are part of the kernel ABI). They are used in the AT_HWCAP
35 entry of the AUXV. */
36 #ifndef PPC_FEATURE_CELL
37 #define PPC_FEATURE_CELL 0x00010000
38 #endif
39 #ifndef PPC_FEATURE_BOOKE
40 #define PPC_FEATURE_BOOKE 0x00008000
41 #endif
42 #ifndef PPC_FEATURE_HAS_DFP
43 #define PPC_FEATURE_HAS_DFP 0x00000400 /* Decimal Floating Point. */
44 #endif
45 #ifndef PPC_FEATURE_HAS_VSX
46 #define PPC_FEATURE_HAS_VSX 0x00000080
47 #endif
48 #ifndef PPC_FEATURE_HAS_ALTIVEC
49 #define PPC_FEATURE_HAS_ALTIVEC 0x10000000
50 #endif
51 #ifndef PPC_FEATURE_HAS_SPE
52 #define PPC_FEATURE_HAS_SPE 0x00800000
53 #endif
54
55 /* Glibc's headers don't define PTRACE_GETVRREGS so we cannot use a
56 configure time check. Some older glibc's (for instance 2.2.1)
57 don't have a specific powerpc version of ptrace.h, and fall back on
58 a generic one. In such cases, sys/ptrace.h defines
59 PTRACE_GETFPXREGS and PTRACE_SETFPXREGS to the same numbers that
60 ppc kernel's asm/ptrace.h defines PTRACE_GETVRREGS and
61 PTRACE_SETVRREGS to be. This also makes a configury check pretty
62 much useless. */
63
64 /* These definitions should really come from the glibc header files,
65 but Glibc doesn't know about the vrregs yet. */
66 #ifndef PTRACE_GETVRREGS
67 #define PTRACE_GETVRREGS 18
68 #define PTRACE_SETVRREGS 19
69 #endif
70
71 /* PTRACE requests for POWER7 VSX registers. */
72 #ifndef PTRACE_GETVSXREGS
73 #define PTRACE_GETVSXREGS 27
74 #define PTRACE_SETVSXREGS 28
75 #endif
76
77 /* Similarly for the ptrace requests for getting / setting the SPE
78 registers (ev0 -- ev31, acc, and spefscr). See the description of
79 gdb_evrregset_t for details. */
80 #ifndef PTRACE_GETEVRREGS
81 #define PTRACE_GETEVRREGS 20
82 #define PTRACE_SETEVRREGS 21
83 #endif
84
85 #ifdef __powerpc64__
86 /* Return whether the inferior is 64bit or not by checking certain bit
87 in MSR. */
88 int ppc64_64bit_inferior_p (long msr);
89 #endif
90
91 #endif