Linux Perf
dwarf-regs.c
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1 /*
2  * Mapping of DWARF debug register numbers into register names.
3  *
4  * Copyright (C) 2010 Will Deacon, ARM Ltd.
5  *
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.
9  */
10 
11 #include <stddef.h>
12 #include <linux/stringify.h>
13 #include <dwarf-regs.h>
14 
16  const char *name;
17  unsigned int dwarfnum;
18 };
19 
20 #define REG_DWARFNUM_NAME(r, num) {.name = r, .dwarfnum = num}
21 #define GPR_DWARFNUM_NAME(num) \
22  {.name = __stringify(%r##num), .dwarfnum = num}
23 #define REG_DWARFNUM_END {.name = NULL, .dwarfnum = 0}
24 
25 /*
26  * Reference:
27  * http://infocenter.arm.com/help/topic/com.arm.doc.ihi0040a/IHI0040A_aadwarf.pdf
28  */
29 static const struct pt_regs_dwarfnum regdwarfnum_table[] = {
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),
47 };
48 
57 const char *get_arch_regstr(unsigned int n)
58 {
59  const struct pt_regs_dwarfnum *roff;
60  for (roff = regdwarfnum_table; roff->name != NULL; roff++)
61  if (roff->dwarfnum == n)
62  return roff->name;
63  return NULL;
64 }
unsigned int dwarfnum
Definition: dwarf-regs.c:17
#define REG_DWARFNUM_NAME(r, num)
Definition: dwarf-regs.c:20
const char * name
Definition: dwarf-regs.c:16
#define REG_DWARFNUM_END
Definition: dwarf-regs.c:23
#define GPR_DWARFNUM_NAME(num)
Definition: dwarf-regs.c:21
static const struct pt_regs_dwarfnum regdwarfnum_table[]
Definition: dwarf-regs.c:29
const char * get_arch_regstr(unsigned int n)
Definition: dwarf-regs.c:57