89 lines
2.3 KiB
C
89 lines
2.3 KiB
C
/*
|
|
* Mapping of DWARF debug register numbers into register names.
|
|
*
|
|
* Copyright (C) 2010 Ian Munsie, IBM Corporation.
|
|
*
|
|
* 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
|
|
* 2 of the License, or (at your option) any later version.
|
|
*/
|
|
|
|
#include <libio.h>
|
|
#include <dwarf-regs.h>
|
|
|
|
|
|
struct pt_regs_dwarfnum {
|
|
const char *name;
|
|
unsigned int dwarfnum;
|
|
};
|
|
|
|
#define STR(s) #s
|
|
#define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num}
|
|
#define GPR_DWARFNUM_NAME(num) \
|
|
{.name = STR(%gpr##num), .dwarfnum = num}
|
|
#define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0}
|
|
|
|
/*
|
|
* Reference:
|
|
* http://refspecs.linuxfoundation.org/ELF/ppc64/PPC-elf64abi-1.9.html
|
|
*/
|
|
static const struct pt_regs_dwarfnum regdwarfnum_table[] = {
|
|
GPR_DWARFNUM_NAME(0),
|
|
GPR_DWARFNUM_NAME(1),
|
|
GPR_DWARFNUM_NAME(2),
|
|
GPR_DWARFNUM_NAME(3),
|
|
GPR_DWARFNUM_NAME(4),
|
|
GPR_DWARFNUM_NAME(5),
|
|
GPR_DWARFNUM_NAME(6),
|
|
GPR_DWARFNUM_NAME(7),
|
|
GPR_DWARFNUM_NAME(8),
|
|
GPR_DWARFNUM_NAME(9),
|
|
GPR_DWARFNUM_NAME(10),
|
|
GPR_DWARFNUM_NAME(11),
|
|
GPR_DWARFNUM_NAME(12),
|
|
GPR_DWARFNUM_NAME(13),
|
|
GPR_DWARFNUM_NAME(14),
|
|
GPR_DWARFNUM_NAME(15),
|
|
GPR_DWARFNUM_NAME(16),
|
|
GPR_DWARFNUM_NAME(17),
|
|
GPR_DWARFNUM_NAME(18),
|
|
GPR_DWARFNUM_NAME(19),
|
|
GPR_DWARFNUM_NAME(20),
|
|
GPR_DWARFNUM_NAME(21),
|
|
GPR_DWARFNUM_NAME(22),
|
|
GPR_DWARFNUM_NAME(23),
|
|
GPR_DWARFNUM_NAME(24),
|
|
GPR_DWARFNUM_NAME(25),
|
|
GPR_DWARFNUM_NAME(26),
|
|
GPR_DWARFNUM_NAME(27),
|
|
GPR_DWARFNUM_NAME(28),
|
|
GPR_DWARFNUM_NAME(29),
|
|
GPR_DWARFNUM_NAME(30),
|
|
GPR_DWARFNUM_NAME(31),
|
|
REG_DWARFNUM_NAME("%msr", 66),
|
|
REG_DWARFNUM_NAME("%ctr", 109),
|
|
REG_DWARFNUM_NAME("%link", 108),
|
|
REG_DWARFNUM_NAME("%xer", 101),
|
|
REG_DWARFNUM_NAME("%dar", 119),
|
|
REG_DWARFNUM_NAME("%dsisr", 118),
|
|
REG_DWARFNUM_END,
|
|
};
|
|
|
|
/**
|
|
* get_arch_regstr() - lookup register name from it's DWARF register number
|
|
* @n: the DWARF register number
|
|
*
|
|
* get_arch_regstr() returns the name of the register in struct
|
|
* regdwarfnum_table from it's DWARF register number. If the register is not
|
|
* found in the table, this returns NULL;
|
|
*/
|
|
const char *get_arch_regstr(unsigned int n)
|
|
{
|
|
const struct pt_regs_dwarfnum *roff;
|
|
for (roff = regdwarfnum_table; roff->name != NULL; roff++)
|
|
if (roff->dwarfnum == n)
|
|
return roff->name;
|
|
return NULL;
|
|
}
|