blob: 8d4c7caa5a3ee433be7cb710c7f0e2e5e9af83b7 (
plain)
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
|
/* Target-dependent code for GNU/Linux x86.
Copyright (C) 2002-2017 Free Software Foundation, Inc.
This file is part of GDB.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>. */
#ifndef I386_LINUX_TDEP_H
#define I386_LINUX_TDEP_H
/* The Linux kernel pretends there is an additional "orig_eax"
register. Since GDB needs access to that register to be able to
properly restart system calls when necessary (see
i386-linux-tdep.c) we need our own versions of a number of
functions that deal with GDB's register cache. */
/* Register number for the "orig_eax" pseudo-register. If this
pseudo-register contains a value >= 0 it is interpreted as the
system call number that the kernel is supposed to restart. */
#define I386_LINUX_ORIG_EAX_REGNUM (I386_PKRU_REGNUM + 1)
/* Total number of registers for GNU/Linux. */
#define I386_LINUX_NUM_REGS (I386_LINUX_ORIG_EAX_REGNUM + 1)
/* Get XSAVE extended state xcr0 from core dump. */
extern uint64_t i386_linux_core_read_xcr0 (bfd *abfd);
/* Handle and display information related to the MPX bound violation
to the user. */
extern void i386_linux_handle_segmentation_fault (struct gdbarch *gdbarch,
struct ui_out *uiout);
/* Linux target description. */
extern struct target_desc *tdesc_i386_linux;
extern struct target_desc *tdesc_i386_mmx_linux;
extern struct target_desc *tdesc_i386_avx_linux;
extern struct target_desc *tdesc_i386_mpx_linux;
extern struct target_desc *tdesc_i386_avx_mpx_linux;
extern struct target_desc *tdesc_i386_avx_avx512_linux;
extern struct target_desc *tdesc_i386_avx_mpx_avx512_pku_linux;
/* Format of XSAVE extended state is:
struct
{
fxsave_bytes[0..463]
sw_usable_bytes[464..511]
xstate_hdr_bytes[512..575]
avx_bytes[576..831]
mpx_bytes [960..1032]
avx512_k_regs[1088..1152]
avx512_zmmh_regs0-7[1153..1407]
avx512_zmmh_regs8-15[1408..1663]
avx512_zmm_regs16-31[1664..2687]
pkru[2688..2752]
future_state etc
};
Same memory layout will be used for the coredump NT_X86_XSTATE
representing the XSAVE extended state registers.
The first 8 bytes of the sw_usable_bytes[464..467] is the OS enabled
extended state mask, which is the same as the extended control register
0 (the XFEATURE_ENABLED_MASK register), XCR0. We can use this mask
together with the mask saved in the xstate_hdr_bytes to determine what
states the processor/OS supports and what state, used or initialized,
the process/thread is in. */
#define I386_LINUX_XSAVE_XCR0_OFFSET 464
extern int i386_linux_gregset_reg_offset[];
/* Return x86 siginfo type. */
extern struct type *x86_linux_get_siginfo_type (struct gdbarch *gdbarch);
#endif /* i386-linux-tdep.h */
|
