2 * Mapping of DWARF debug register numbers into register names.
4 * Copyright (C) 2010 Will Deacon, ARM Ltd.
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License version 2 as
8 * published by the Free Software Foundation.
12 #include <dwarf-regs.h>
14 struct pt_regs_dwarfnum
{
16 unsigned int dwarfnum
;
20 #define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num}
21 #define GPR_DWARFNUM_NAME(num) \
22 {.name = STR(%x##num), .dwarfnum = num}
23 #define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0}
27 * http://infocenter.arm.com/help/topic/com.arm.doc.ihi0057b/IHI0057B_aadwarf64.pdf
29 static const struct pt_regs_dwarfnum regdwarfnum_table
[] = {
40 GPR_DWARFNUM_NAME(10),
41 GPR_DWARFNUM_NAME(11),
42 GPR_DWARFNUM_NAME(12),
43 GPR_DWARFNUM_NAME(13),
44 GPR_DWARFNUM_NAME(14),
45 GPR_DWARFNUM_NAME(15),
46 GPR_DWARFNUM_NAME(16),
47 GPR_DWARFNUM_NAME(17),
48 GPR_DWARFNUM_NAME(18),
49 GPR_DWARFNUM_NAME(19),
50 GPR_DWARFNUM_NAME(20),
51 GPR_DWARFNUM_NAME(21),
52 GPR_DWARFNUM_NAME(22),
53 GPR_DWARFNUM_NAME(23),
54 GPR_DWARFNUM_NAME(24),
55 GPR_DWARFNUM_NAME(25),
56 GPR_DWARFNUM_NAME(26),
57 GPR_DWARFNUM_NAME(27),
58 GPR_DWARFNUM_NAME(28),
59 GPR_DWARFNUM_NAME(29),
60 REG_DWARFNUM_NAME("%lr", 30),
61 REG_DWARFNUM_NAME("%sp", 31),
66 * get_arch_regstr() - lookup register name from it's DWARF register number
67 * @n: the DWARF register number
69 * get_arch_regstr() returns the name of the register in struct
70 * regdwarfnum_table from it's DWARF register number. If the register is not
71 * found in the table, this returns NULL;
73 const char *get_arch_regstr(unsigned int n
)
75 const struct pt_regs_dwarfnum
*roff
;
76 for (roff
= regdwarfnum_table
; roff
->name
!= NULL
; roff
++)
77 if (roff
->dwarfnum
== n
)