diff options
Diffstat (limited to '')
| -rw-r--r-- | tools/perf/util/dwarf-regs.c | 70 |
1 files changed, 63 insertions, 7 deletions
diff --git a/tools/perf/util/dwarf-regs.c b/tools/perf/util/dwarf-regs.c index 1b49ecee5aff..28a1cfdf26d4 100644 --- a/tools/perf/util/dwarf-regs.c +++ b/tools/perf/util/dwarf-regs.c @@ -5,15 +5,14 @@ * Written by: Masami Hiramatsu <mhiramat@kernel.org> */ +#include <stdlib.h> +#include <string.h> #include <debug.h> #include <dwarf-regs.h> #include <elf.h> +#include <errno.h> #include <linux/kernel.h> -#ifndef EM_AARCH64 -#define EM_AARCH64 183 /* ARM 64 bit */ -#endif - /* Define const char * {arch}_register_tbl[] */ #define DEFINE_DWARF_REGSTR_TABLE #include "../arch/x86/include/dwarf-regs-table.h" @@ -21,18 +20,23 @@ #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/riscv/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" +#include "../arch/mips/include/dwarf-regs-table.h" +#include "../arch/loongarch/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) +const char *get_dwarf_regstr(unsigned int n, unsigned int machine, unsigned int flags) { + if (machine == EM_NONE) { + /* Generic arch - use host arch */ + machine = EM_HOST; + } 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: @@ -41,6 +45,8 @@ const char *get_dwarf_regstr(unsigned int n, unsigned int machine) return __get_dwarf_regstr(arm_regstr_tbl, n); case EM_AARCH64: return __get_dwarf_regstr(aarch64_regstr_tbl, n); + case EM_CSKY: + return get_csky_regstr(n, flags); case EM_SH: return __get_dwarf_regstr(sh_regstr_tbl, n); case EM_S390: @@ -48,13 +54,63 @@ const char *get_dwarf_regstr(unsigned int n, unsigned int machine) case EM_PPC: case EM_PPC64: return __get_dwarf_regstr(powerpc_regstr_tbl, n); + case EM_RISCV: + return __get_dwarf_regstr(riscv_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); + case EM_MIPS: + return __get_dwarf_regstr(mips_regstr_tbl, n); + case EM_LOONGARCH: + return __get_dwarf_regstr(loongarch_regstr_tbl, n); default: pr_err("ELF MACHINE %x is not supported.\n", machine); } return NULL; } + +#if EM_HOST != EM_X86_64 && EM_HOST != EM_386 +__weak int get_arch_regnum(const char *name __maybe_unused) +{ + return -ENOTSUP; +} +#endif + +/* Return DWARF register number from architecture register name */ +int get_dwarf_regnum(const char *name, unsigned int machine, unsigned int flags __maybe_unused) +{ + char *regname = strdup(name); + int reg = -1; + char *p; + + if (regname == NULL) + return -EINVAL; + + /* For convenience, remove trailing characters */ + p = strpbrk(regname, " ,)"); + if (p) + *p = '\0'; + + if (machine == EM_NONE) { + /* Generic arch - use host arch */ + machine = EM_HOST; + } + switch (machine) { +#if EM_HOST != EM_X86_64 && EM_HOST != EM_386 + case EM_HOST: + reg = get_arch_regnum(regname); + break; +#endif + case EM_X86_64: + fallthrough; + case EM_386: + reg = get_x86_regnum(regname); + break; + default: + pr_err("ELF MACHINE %x is not supported.\n", machine); + } + free(regname); + return reg; +} |