cregit-Linux how code gets into the kernel

Release 4.10 tools/perf/util/dwarf-regs.c

Directory: tools/perf/util
 * dwarf-regs.c : Mapping of DWARF debug register numbers into register names.
 * Written by: Masami Hiramatsu <>

#include <util.h>
#include <debug.h>
#include <dwarf-regs.h>
#include <elf.h>

#ifndef EM_AARCH64

#define EM_AARCH64	183  
/* ARM 64 bit */

/* Define const char * {arch}_register_tbl[] */

#include "../arch/x86/include/dwarf-regs-table.h"
#include "../arch/arm/include/dwarf-regs-table.h"
#include "../arch/arm64/include/dwarf-regs-table.h"
#include "../arch/sh/include/dwarf-regs-table.h"
#include "../arch/powerpc/include/dwarf-regs-table.h"
#include "../arch/s390/include/dwarf-regs-table.h"
#include "../arch/sparc/include/dwarf-regs-table.h"
#include "../arch/xtensa/include/dwarf-regs-table.h"

#define __get_dwarf_regstr(tbl, n) (((n) < ARRAY_SIZE(tbl)) ? (tbl)[(n)] : NULL)

/* Return architecture dependent register string (for kprobe-tracer) */

const char *get_dwarf_regstr(unsigned int n, unsigned int machine) { switch (machine) { case EM_NONE: /* Generic arch - use host arch */ return get_arch_regstr(n); case EM_386: return __get_dwarf_regstr(x86_32_regstr_tbl, n); case EM_X86_64: return __get_dwarf_regstr(x86_64_regstr_tbl, n); case EM_ARM: return __get_dwarf_regstr(arm_regstr_tbl, n); case EM_AARCH64: return __get_dwarf_regstr(aarch64_regstr_tbl, n); case EM_SH: return __get_dwarf_regstr(sh_regstr_tbl, n); case EM_S390: return __get_dwarf_regstr(s390_regstr_tbl, n); case EM_PPC: case EM_PPC64: return __get_dwarf_regstr(powerpc_regstr_tbl, n); case EM_SPARC: case EM_SPARCV9: return __get_dwarf_regstr(sparc_regstr_tbl, n); case EM_XTENSA: return __get_dwarf_regstr(xtensa_regstr_tbl, n); default: pr_err("ELF MACHINE %x is not supported.\n", machine); } return NULL; }


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Directory: tools/perf/util
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