Contributors: 5
| Author |
Tokens |
Token Proportion |
Commits |
Commit Proportion |
| Will Deacon |
188 |
95.43% |
1 |
20.00% |
| Arnaldo Carvalho de Melo |
4 |
2.03% |
1 |
20.00% |
| Thomas Gleixner |
2 |
1.02% |
1 |
20.00% |
| Florian Fainelli |
2 |
1.02% |
1 |
20.00% |
| Cody P Schafer |
1 |
0.51% |
1 |
20.00% |
| Total |
197 |
|
5 |
|
// SPDX-License-Identifier: GPL-2.0-only
/*
* Mapping of DWARF debug register numbers into register names.
*
* Copyright (C) 2010 Will Deacon, ARM Ltd.
*/
#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;
}