mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git
synced 2026-05-09 21:42:09 +02:00
Ian Rogers
406b51a9a5
Despite an unused function declaration, there was no unwind-libdw for MIPS but there is a perf_regs.h and a libdw implementation. Fill in the pieces so hopefully MIPS unwinding with libdw works. Signed-off-by: Ian Rogers <irogers@google.com> Cc: Aditya Bodkhe <aditya.b1@linux.ibm.com> Cc: Adrian Hunter <adrian.hunter@intel.com> Cc: Albert Ou <aou@eecs.berkeley.edu> Cc: Alexandre Ghiti <alex@ghiti.fr> Cc: Andi Kleen <ak@linux.intel.com> Cc: Athira Rajeev <atrajeev@linux.ibm.com> Cc: Chun-Tse Shao <ctshao@google.com> Cc: Dmitriy Vyukov <dvyukov@google.com> Cc: Dr. David Alan Gilbert <linux@treblig.org> Cc: Guo Ren <guoren@kernel.org> Cc: Haibo Xu <haibo1.xu@intel.com> Cc: Howard Chu <howardchu95@gmail.com> Cc: Ingo Molnar <mingo@redhat.com> Cc: James Clark <james.clark@linaro.org> Cc: Jiri Olsa <jolsa@kernel.org> Cc: John Garry <john.g.garry@oracle.com> Cc: Krzysztof Łopatowski <krzysztof.m.lopatowski@gmail.com> Cc: Leo Yan <leo.yan@linux.dev> Cc: Mark Wielaard <mark@klomp.org> Cc: Namhyung Kim <namhyung@kernel.org> Cc: Palmer Dabbelt <palmer@dabbelt.com> Cc: Paul Walmsley <pjw@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Sergei Trofimovich <slyich@gmail.com> Cc: Shimin Guo <shimin.guo@skydio.com> Cc: Stephen Brennan <stephen.s.brennan@oracle.com> Cc: Thomas Falcon <thomas.falcon@intel.com> Cc: Will Deacon <will@kernel.org> Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
150 lines
4.2 KiB
C
150 lines
4.2 KiB
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _PERF_DWARF_REGS_H_
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#define _PERF_DWARF_REGS_H_
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#include "annotate.h"
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#include <elf.h>
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#ifndef EM_AARCH64
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#define EM_AARCH64 183 /* ARM 64 bit */
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#endif
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#ifndef EM_CSKY
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#define EM_CSKY 252 /* C-SKY */
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#endif
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#ifndef EF_CSKY_ABIV1
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#define EF_CSKY_ABIV1 0X10000000
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#endif
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#ifndef EF_CSKY_ABIV2
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#define EF_CSKY_ABIV2 0X20000000
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#endif
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#ifndef EM_LOONGARCH
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#define EM_LOONGARCH 258 /* LoongArch */
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#endif
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/* EM_HOST gives the ELF machine for host, EF_HOST gives additional flags. */
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#if defined(__x86_64__)
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#define EM_HOST EM_X86_64
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#elif defined(__i386__)
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#define EM_HOST EM_386
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#elif defined(__aarch64__)
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#define EM_HOST EM_AARCH64
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#elif defined(__arm__)
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#define EM_HOST EM_ARM
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#elif defined(__alpha__)
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#define EM_HOST EM_ALPHA
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#elif defined(__arc__)
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#define EM_HOST EM_ARC
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#elif defined(__AVR__)
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#define EM_HOST EM_AVR
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#elif defined(__AVR32__)
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#define EM_HOST EM_AVR32
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#elif defined(__bfin__)
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#define EM_HOST EM_BLACKFIN
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#elif defined(__csky__)
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#define EM_HOST EM_CSKY
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#if defined(__CSKYABIV2__)
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#define EF_HOST EF_CSKY_ABIV2
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#else
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#define EF_HOST EF_CSKY_ABIV1
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#endif
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#elif defined(__cris__)
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#define EM_HOST EM_CRIS
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#elif defined(__hppa__) // HP PA-RISC
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#define EM_HOST EM_PARISC
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#elif defined(__loongarch__)
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#define EM_HOST EM_LOONGARCH
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#elif defined(__mips__)
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#define EM_HOST EM_MIPS
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#elif defined(__m32r__)
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#define EM_HOST EM_M32R
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#elif defined(__microblaze__)
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#define EM_HOST EM_MICROBLAZE
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#elif defined(__MSP430__)
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#define EM_HOST EM_MSP430
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#elif defined(__powerpc64__)
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#define EM_HOST EM_PPC64
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#elif defined(__powerpc__)
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#define EM_HOST EM_PPC
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#elif defined(__riscv)
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#define EM_HOST EM_RISCV
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#elif defined(__s390x__)
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#define EM_HOST EM_S390
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#elif defined(__sh__)
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#define EM_HOST EM_SH
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#elif defined(__sparc64__) || defined(__sparc__)
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#define EM_HOST EM_SPARC
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#elif defined(__xtensa__)
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#define EM_HOST EM_XTENSA
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#else
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/* Unknown host ELF machine type. */
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#define EM_HOST EM_NONE
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#endif
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#if !defined(EF_HOST)
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#define EF_HOST 0
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#endif
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#define DWARF_REG_PC 0xd3af9c /* random number */
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#define DWARF_REG_FB 0xd3affb /* random number */
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#ifdef HAVE_LIBDW_SUPPORT
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/**
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* get_dwarf_regstr() - Returns ftrace register string from DWARF regnum.
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* @n: DWARF register number.
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* @machine: ELF machine signature (EM_*).
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* @flags: ELF flags for things like ABI differences.
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*/
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const char *get_dwarf_regstr(unsigned int n, unsigned int machine, unsigned int flags);
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const char *__get_csky_regstr(unsigned int n, unsigned int flags);
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int __get_csky_regnum(const char *name, unsigned int flags);
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int __get_dwarf_regnum_i386(const char *name);
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int __get_dwarf_regnum_x86_64(const char *name);
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int __get_dwarf_regnum_for_perf_regnum_i386(int perf_regnum);
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int __get_dwarf_regnum_for_perf_regnum_x86_64(int perf_regnum);
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int __get_dwarf_regnum_for_perf_regnum_arm(int perf_regnum);
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int __get_dwarf_regnum_for_perf_regnum_arm64(int perf_regnum);
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int __get_dwarf_regnum_for_perf_regnum_csky(int perf_regnum, unsigned int flags);
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int __get_dwarf_regnum_for_perf_regnum_loongarch(int perf_regnum);
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int __get_dwarf_regnum_for_perf_regnum_powerpc(int perf_regnum);
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int __get_dwarf_regnum_for_perf_regnum_riscv(int perf_regnum);
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int __get_dwarf_regnum_for_perf_regnum_s390(int perf_regnum);
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int __get_dwarf_regnum_for_perf_regnum_mips(int perf_regnum);
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/*
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* get_dwarf_regnum - Returns DWARF regnum from register name
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* name: architecture register name
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* machine: ELF machine signature (EM_*)
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*/
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int get_dwarf_regnum(const char *name, unsigned int machine, unsigned int flags);
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/*
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* get_dwarf_regnum - Returns DWARF regnum from perf register number.
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*/
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int get_dwarf_regnum_for_perf_regnum(int perf_regnum, unsigned int machine, unsigned int flags,
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bool only_libdw_supported);
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void get_powerpc_regs(u32 raw_insn, int is_source, struct annotated_op_loc *op_loc);
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#else /* HAVE_LIBDW_SUPPORT */
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static inline int get_dwarf_regnum(const char *name __maybe_unused,
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unsigned int machine __maybe_unused,
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unsigned int flags __maybe_unused)
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{
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return -1;
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}
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static inline void get_powerpc_regs(u32 raw_insn __maybe_unused, int is_source __maybe_unused,
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struct annotated_op_loc *op_loc __maybe_unused)
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{
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return;
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}
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#endif
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#endif
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