You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
64 lines
1.7 KiB
64 lines
1.7 KiB
/*
|
|
* Mapping of DWARF debug register numbers into register names.
|
|
*
|
|
* Copyright (C) 2010 Will Deacon, ARM Ltd.
|
|
*
|
|
* This program is free software; you can redistribute it and/or modify
|
|
* it under the terms of the GNU General Public License version 2 as
|
|
* published by the Free Software Foundation.
|
|
*/
|
|
|
|
#include <stddef.h>
|
|
#include <linux/stringify.h>
|
|
#include <dwarf-regs.h>
|
|
|
|
struct pt_regs_dwarfnum {
|
|
const char *name;
|
|
unsigned int dwarfnum;
|
|
};
|
|
|
|
#define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num}
|
|
#define GPR_DWARFNUM_NAME(num) \
|
|
{.name = __stringify(%r##num), .dwarfnum = num}
|
|
#define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0}
|
|
|
|
/*
|
|
* Reference:
|
|
* http://infocenter.arm.com/help/topic/com.arm.doc.ihi0040a/IHI0040A_aadwarf.pdf
|
|
*/
|
|
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),
|
|
REG_DWARFNUM_NAME("%fp", 11),
|
|
REG_DWARFNUM_NAME("%ip", 12),
|
|
REG_DWARFNUM_NAME("%sp", 13),
|
|
REG_DWARFNUM_NAME("%lr", 14),
|
|
REG_DWARFNUM_NAME("%pc", 15),
|
|
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;
|
|
}
|
|
|