mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2024-12-29 17:25:38 +00:00
3ef6b89a12
get_arch_regstr no longer exists so remove declaration. Associated ifs and switches are made unconditional. Reviewed-by: Masami Hiramatsu (Google) <mhiramat@kernel.org> Signed-off-by: Ian Rogers <irogers@google.com> Cc: Anup Patel <anup@brainfault.org> Cc: Yang Jihong <yangjihong@bytedance.com> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: David S. Miller <davem@davemloft.net> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Shenlin Liang <liangshenlin@eswincomputing.com> Cc: Nick Terrell <terrelln@fb.com> Cc: Guilherme Amadio <amadio@gentoo.org> Cc: Steinar H. Gunderson <sesse@google.com> Cc: Changbin Du <changbin.du@huawei.com> Cc: Alexander Lobakin <aleksander.lobakin@intel.com> Cc: Przemek Kitszel <przemyslaw.kitszel@intel.com> Cc: Huacai Chen <chenhuacai@kernel.org> Cc: Guo Ren <guoren@kernel.org> Cc: Masahiro Yamada <masahiroy@kernel.org> Cc: Will Deacon <will@kernel.org> Cc: James Clark <james.clark@linaro.org> Cc: Mike Leach <mike.leach@linaro.org> Cc: Chen Pei <cp0613@linux.alibaba.com> Cc: Leo Yan <leo.yan@linux.dev> Cc: Oliver Upton <oliver.upton@linux.dev> Cc: Aditya Gupta <adityag@linux.ibm.com> Cc: Kajol Jain <kjain@linux.ibm.com> Cc: Athira Rajeev <atrajeev@linux.vnet.ibm.com> Cc: linux-arm-kernel@lists.infradead.org Cc: linux-riscv@lists.infradead.org Cc: Bibo Mao <maobibo@loongson.cn> Cc: John Garry <john.g.garry@oracle.com> Cc: Atish Patra <atishp@rivosinc.com> Cc: Dima Kogan <dima@secretsauce.net> Cc: Paul Walmsley <paul.walmsley@sifive.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: linux-csky@vger.kernel.org Link: https://lore.kernel.org/r/20241108234606.429459-20-irogers@google.com Signed-off-by: Namhyung Kim <namhyung@kernel.org>
117 lines
3.1 KiB
C
117 lines
3.1 KiB
C
// SPDX-License-Identifier: GPL-2.0
|
|
/*
|
|
* dwarf-regs.c : Mapping of DWARF debug register numbers into register names.
|
|
*
|
|
* 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>
|
|
|
|
/* Define const char * {arch}_register_tbl[] */
|
|
#define DEFINE_DWARF_REGSTR_TABLE
|
|
#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/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, unsigned int flags)
|
|
{
|
|
if (machine == EM_NONE) {
|
|
/* Generic arch - use host arch */
|
|
machine = EM_HOST;
|
|
}
|
|
switch (machine) {
|
|
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_CSKY:
|
|
return get_csky_regstr(n, flags);
|
|
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_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;
|
|
}
|