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(%r##num), .dwarfnum = num}
23 #define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0}
27 * http://infocenter.arm.com/help/topic/com.arm.doc.ihi0040a/IHI0040A_aadwarf.pdf
29 static const struct pt_regs_dwarfnum regdwarfnum_table
[] = {
40 GPR_DWARFNUM_NAME(10),
41 REG_DWARFNUM_NAME("%fp", 11),
42 REG_DWARFNUM_NAME("%ip", 12),
43 REG_DWARFNUM_NAME("%sp", 13),
44 REG_DWARFNUM_NAME("%lr", 14),
45 REG_DWARFNUM_NAME("%pc", 15),
50 * get_arch_regstr() - lookup register name from it's DWARF register number
51 * @n: the DWARF register number
53 * get_arch_regstr() returns the name of the register in struct
54 * regdwarfnum_table from it's DWARF register number. If the register is not
55 * found in the table, this returns NULL;
57 const char *get_arch_regstr(unsigned int n
)
59 const struct pt_regs_dwarfnum
*roff
;
60 for (roff
= regdwarfnum_table
; roff
->name
!= NULL
; roff
++)
61 if (roff
->dwarfnum
== n
)