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Wed, 21 Jan 2026 23:31:37 -0800 (PST) Date: Wed, 21 Jan 2026 23:31:20 -0800 In-Reply-To: <20260122073127.375139-1-irogers@google.com> Mime-Version: 1.0 References: <20260122073127.375139-1-irogers@google.com> X-Mailer: git-send-email 2.52.0.457.g6b5491de43-goog Message-ID: <20260122073127.375139-5-irogers@google.com> Subject: [PATCH v1 04/11] perf disasm: Constify use of struct ins_op From: Ian Rogers To: Peter Zijlstra , Ingo Molnar , Arnaldo Carvalho de Melo , Namhyung Kim , Alexander Shishkin , Jiri Olsa , Ian Rogers , Adrian Hunter , James Clark , John Garry , Will Deacon , Leo Yan , Guo Ren , Paul Walmsley , Palmer Dabbelt , Albert Ou , Alexandre Ghiti , Nathan Chancellor , Nick Desaulniers , Bill Wendling , Justin Stitt , Zecheng Li , Tianyou Li , Thomas Falcon , Julia Lawall , Suchit Karunakaran , Athira Rajeev , Aditya Bodkhe , Howard Chu , "=?UTF-8?q?Krzysztof=20=C5=81opatowski?=" , "Dr. David Alan Gilbert" , Shimin Guo , Sergei Trofimovich , linux-kernel@vger.kernel.org, linux-perf-users@vger.kernel.org, linux-arm-kernel@lists.infradead.org, linux-csky@vger.kernel.org, linux-riscv@lists.infradead.org Content-Type: text/plain; charset="UTF-8" X-CRM114-Version: 20100106-BlameMichelson ( TRE 0.8.0 (BSD) ) MR-646709E3 X-CRM114-CacheID: sfid-20260121_233139_402698_6650224D X-CRM114-Status: GOOD ( 17.56 ) X-BeenThere: linux-arm-kernel@lists.infradead.org X-Mailman-Version: 2.1.34 Precedence: list List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: "linux-arm-kernel" Errors-To: linux-arm-kernel-bounces+linux-arm-kernel=archiver.kernel.org@lists.infradead.org The struct ins_op holds variables to function pointers that are read but not written. Change uses to be for a "const struct ins_op *" version to capture this immutability. Signed-off-by: Ian Rogers --- tools/perf/arch/arm/annotate/instructions.c | 4 +- tools/perf/arch/arm64/annotate/instructions.c | 6 +-- tools/perf/arch/csky/annotate/instructions.c | 6 +-- .../arch/loongarch/annotate/instructions.c | 8 ++-- tools/perf/arch/mips/annotate/instructions.c | 4 +- .../perf/arch/powerpc/annotate/instructions.c | 6 +-- .../perf/arch/riscv64/annotate/instructions.c | 4 +- tools/perf/arch/s390/annotate/instructions.c | 8 ++-- tools/perf/arch/sparc/annotate/instructions.c | 4 +- tools/perf/util/disasm.c | 46 +++++++++---------- tools/perf/util/disasm.h | 6 +-- 11 files changed, 51 insertions(+), 51 deletions(-) diff --git a/tools/perf/arch/arm/annotate/instructions.c b/tools/perf/arch/arm/annotate/instructions.c index 5e667b0f5512..b997d127fedd 100644 --- a/tools/perf/arch/arm/annotate/instructions.c +++ b/tools/perf/arch/arm/annotate/instructions.c @@ -11,10 +11,10 @@ struct arm_annotate { jump_insn; }; -static struct ins_ops *arm__associate_instruction_ops(struct arch *arch, const char *name) +static const struct ins_ops *arm__associate_instruction_ops(struct arch *arch, const char *name) { struct arm_annotate *arm = arch->priv; - struct ins_ops *ops; + const struct ins_ops *ops; regmatch_t match[2]; if (!regexec(&arm->call_insn, name, 2, match, 0)) diff --git a/tools/perf/arch/arm64/annotate/instructions.c b/tools/perf/arch/arm64/annotate/instructions.c index 5099fa36180d..363af2f55122 100644 --- a/tools/perf/arch/arm64/annotate/instructions.c +++ b/tools/perf/arch/arm64/annotate/instructions.c @@ -63,15 +63,15 @@ static int arm64_mov__parse(const struct arch *arch __maybe_unused, static int mov__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops, int max_ins_name); -static struct ins_ops arm64_mov_ops = { +static const struct ins_ops arm64_mov_ops = { .parse = arm64_mov__parse, .scnprintf = mov__scnprintf, }; -static struct ins_ops *arm64__associate_instruction_ops(struct arch *arch, const char *name) +static const struct ins_ops *arm64__associate_instruction_ops(struct arch *arch, const char *name) { struct arm64_annotate *arm = arch->priv; - struct ins_ops *ops; + const struct ins_ops *ops; regmatch_t match[2]; if (!regexec(&arm->jump_insn, name, 2, match, 0)) diff --git a/tools/perf/arch/csky/annotate/instructions.c b/tools/perf/arch/csky/annotate/instructions.c index 14270311d215..4a55c84a320a 100644 --- a/tools/perf/arch/csky/annotate/instructions.c +++ b/tools/perf/arch/csky/annotate/instructions.c @@ -3,10 +3,10 @@ #include -static struct ins_ops *csky__associate_ins_ops(struct arch *arch, - const char *name) +static const struct ins_ops *csky__associate_ins_ops(struct arch *arch, + const char *name) { - struct ins_ops *ops = NULL; + const struct ins_ops *ops = NULL; /* catch all kind of jumps */ if (!strcmp(name, "bt") || diff --git a/tools/perf/arch/loongarch/annotate/instructions.c b/tools/perf/arch/loongarch/annotate/instructions.c index 4ca4fb6bbcf9..ee360faad420 100644 --- a/tools/perf/arch/loongarch/annotate/instructions.c +++ b/tools/perf/arch/loongarch/annotate/instructions.c @@ -49,7 +49,7 @@ static int loongarch_call__parse(const struct arch *arch, struct ins_operands *o return 0; } -static struct ins_ops loongarch_call_ops = { +static const struct ins_ops loongarch_call_ops = { .parse = loongarch_call__parse, .scnprintf = call__scnprintf, }; @@ -98,15 +98,15 @@ static int loongarch_jump__parse(const struct arch *arch, struct ins_operands *o return 0; } -static struct ins_ops loongarch_jump_ops = { +static const struct ins_ops loongarch_jump_ops = { .parse = loongarch_jump__parse, .scnprintf = jump__scnprintf, }; static -struct ins_ops *loongarch__associate_ins_ops(struct arch *arch, const char *name) +const struct ins_ops *loongarch__associate_ins_ops(struct arch *arch, const char *name) { - struct ins_ops *ops = NULL; + const struct ins_ops *ops = NULL; if (!strcmp(name, "bl")) ops = &loongarch_call_ops; diff --git a/tools/perf/arch/mips/annotate/instructions.c b/tools/perf/arch/mips/annotate/instructions.c index b50b46c613d6..0fbe0a7df95a 100644 --- a/tools/perf/arch/mips/annotate/instructions.c +++ b/tools/perf/arch/mips/annotate/instructions.c @@ -1,9 +1,9 @@ // SPDX-License-Identifier: GPL-2.0 static -struct ins_ops *mips__associate_ins_ops(struct arch *arch, const char *name) +const struct ins_ops *mips__associate_ins_ops(struct arch *arch, const char *name) { - struct ins_ops *ops = NULL; + const struct ins_ops *ops = NULL; if (!strncmp(name, "bal", 3) || !strncmp(name, "bgezal", 6) || diff --git a/tools/perf/arch/powerpc/annotate/instructions.c b/tools/perf/arch/powerpc/annotate/instructions.c index ca567cfdcbdb..d1be55425e35 100644 --- a/tools/perf/arch/powerpc/annotate/instructions.c +++ b/tools/perf/arch/powerpc/annotate/instructions.c @@ -1,10 +1,10 @@ // SPDX-License-Identifier: GPL-2.0 #include -static struct ins_ops *powerpc__associate_instruction_ops(struct arch *arch, const char *name) +static const struct ins_ops *powerpc__associate_instruction_ops(struct arch *arch, const char *name) { int i; - struct ins_ops *ops; + const struct ins_ops *ops; /* * - Interested only if instruction starts with 'b'. @@ -189,7 +189,7 @@ static int cmp_offset(const void *a, const void *b) return (val1->value - val2->value); } -static struct ins_ops *check_ppc_insn(struct disasm_line *dl) +static const struct ins_ops *check_ppc_insn(struct disasm_line *dl) { int raw_insn = dl->raw.raw_insn; int opcode = PPC_OP(raw_insn); diff --git a/tools/perf/arch/riscv64/annotate/instructions.c b/tools/perf/arch/riscv64/annotate/instructions.c index 55cf911633f8..a34798864fab 100644 --- a/tools/perf/arch/riscv64/annotate/instructions.c +++ b/tools/perf/arch/riscv64/annotate/instructions.c @@ -1,9 +1,9 @@ // SPDX-License-Identifier: GPL-2.0 static -struct ins_ops *riscv64__associate_ins_ops(struct arch *arch, const char *name) +const struct ins_ops *riscv64__associate_ins_ops(struct arch *arch, const char *name) { - struct ins_ops *ops = NULL; + const struct ins_ops *ops = NULL; if (!strncmp(name, "jal", 3) || !strncmp(name, "jr", 2) || diff --git a/tools/perf/arch/s390/annotate/instructions.c b/tools/perf/arch/s390/annotate/instructions.c index 8d66c0ea3810..38f7e918ebf8 100644 --- a/tools/perf/arch/s390/annotate/instructions.c +++ b/tools/perf/arch/s390/annotate/instructions.c @@ -46,7 +46,7 @@ static int s390_call__parse(const struct arch *arch, struct ins_operands *ops, return 0; } -static struct ins_ops s390_call_ops = { +static const struct ins_ops s390_call_ops = { .parse = s390_call__parse, .scnprintf = call__scnprintf, }; @@ -100,14 +100,14 @@ static int s390_mov__parse(const struct arch *arch __maybe_unused, } -static struct ins_ops s390_mov_ops = { +static const struct ins_ops s390_mov_ops = { .parse = s390_mov__parse, .scnprintf = mov__scnprintf, }; -static struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *name) +static const struct ins_ops *s390__associate_ins_ops(struct arch *arch, const char *name) { - struct ins_ops *ops = NULL; + const struct ins_ops *ops = NULL; /* catch all kind of jumps */ if (strchr(name, 'j') || diff --git a/tools/perf/arch/sparc/annotate/instructions.c b/tools/perf/arch/sparc/annotate/instructions.c index 68c31580ccfc..a08d8734c883 100644 --- a/tools/perf/arch/sparc/annotate/instructions.c +++ b/tools/perf/arch/sparc/annotate/instructions.c @@ -117,9 +117,9 @@ static int is_branch_float_cond(const char *cond) return 0; } -static struct ins_ops *sparc__associate_instruction_ops(struct arch *arch, const char *name) +static const struct ins_ops *sparc__associate_instruction_ops(struct arch *arch, const char *name) { - struct ins_ops *ops = NULL; + const struct ins_ops *ops = NULL; if (!strcmp(name, "call") || !strcmp(name, "jmp") || diff --git a/tools/perf/util/disasm.c b/tools/perf/util/disasm.c index d41a0f96a6f6..dbeb89047fd1 100644 --- a/tools/perf/util/disasm.c +++ b/tools/perf/util/disasm.c @@ -33,15 +33,15 @@ static regex_t file_lineno; /* These can be referred from the arch-dependent code */ -static struct ins_ops call_ops; -static struct ins_ops dec_ops; -static struct ins_ops jump_ops; -static struct ins_ops mov_ops; -static struct ins_ops nop_ops; -static struct ins_ops lock_ops; -static struct ins_ops ret_ops; -static struct ins_ops load_store_ops; -static struct ins_ops arithmetic_ops; +static const struct ins_ops call_ops; +static const struct ins_ops dec_ops; +static const struct ins_ops jump_ops; +static const struct ins_ops mov_ops; +static const struct ins_ops nop_ops; +static const struct ins_ops lock_ops; +static const struct ins_ops ret_ops; +static const struct ins_ops load_store_ops; +static const struct ins_ops arithmetic_ops; static int jump__scnprintf(struct ins *ins, char *bf, size_t size, struct ins_operands *ops, int max_ins_name); @@ -85,7 +85,7 @@ static int arch__grow_instructions(struct arch *arch) goto out_update_instructions; } -static int arch__associate_ins_ops(struct arch* arch, const char *name, struct ins_ops *ops) +static int arch__associate_ins_ops(struct arch *arch, const char *name, const struct ins_ops *ops) { struct ins *ins; @@ -334,7 +334,7 @@ static int call__scnprintf(struct ins *ins, char *bf, size_t size, return scnprintf(bf, size, "%-*s *%" PRIx64, max_ins_name, ins->name, ops->target.addr); } -static struct ins_ops call_ops = { +static const struct ins_ops call_ops = { .parse = call__parse, .scnprintf = call__scnprintf, }; @@ -487,7 +487,7 @@ static void jump__delete(struct ins_operands *ops __maybe_unused) */ } -static struct ins_ops jump_ops = { +static const struct ins_ops jump_ops = { .free = jump__delete, .parse = jump__parse, .scnprintf = jump__scnprintf, @@ -579,7 +579,7 @@ static void lock__delete(struct ins_operands *ops) zfree(&ops->target.name); } -static struct ins_ops lock_ops = { +static const struct ins_ops lock_ops = { .free = lock__delete, .parse = lock__parse, .scnprintf = lock__scnprintf, @@ -688,7 +688,7 @@ static int mov__scnprintf(struct ins *ins, char *bf, size_t size, ops->target.name ?: ops->target.raw); } -static struct ins_ops mov_ops = { +static const struct ins_ops mov_ops = { .parse = mov__parse, .scnprintf = mov__scnprintf, }; @@ -738,7 +738,7 @@ static int arithmetic__parse(const struct arch *arch __maybe_unused, struct ins_ return 0; } -static struct ins_ops arithmetic_ops = { +static const struct ins_ops arithmetic_ops = { .parse = arithmetic__parse, .scnprintf = arithmetic__scnprintf, }; @@ -772,7 +772,7 @@ static int load_store__parse(const struct arch *arch __maybe_unused, struct ins_ return 0; } -static struct ins_ops load_store_ops = { +static const struct ins_ops load_store_ops = { .parse = load_store__parse, .scnprintf = load_store__scnprintf, }; @@ -813,7 +813,7 @@ static int dec__scnprintf(struct ins *ins, char *bf, size_t size, ops->target.name ?: ops->target.raw); } -static struct ins_ops dec_ops = { +static const struct ins_ops dec_ops = { .parse = dec__parse, .scnprintf = dec__scnprintf, }; @@ -824,11 +824,11 @@ static int nop__scnprintf(struct ins *ins __maybe_unused, char *bf, size_t size, return scnprintf(bf, size, "%-*s", max_ins_name, "nop"); } -static struct ins_ops nop_ops = { +static const struct ins_ops nop_ops = { .scnprintf = nop__scnprintf, }; -static struct ins_ops ret_ops = { +static const struct ins_ops ret_ops = { .scnprintf = ins__raw_scnprintf, }; @@ -869,7 +869,7 @@ static void ins__sort(struct arch *arch) qsort(arch->instructions, nmemb, sizeof(struct ins), ins__cmp); } -static struct ins_ops *__ins__find(const struct arch *arch, const char *name, +static const struct ins_ops *__ins__find(const struct arch *arch, const char *name, struct disasm_line *dl) { struct ins *ins; @@ -880,7 +880,7 @@ static struct ins_ops *__ins__find(const struct arch *arch, const char *name, * For powerpc, identify the instruction ops * from the opcode using raw_insn. */ - struct ins_ops *ops; + const struct ins_ops *ops; ops = check_ppc_insn(dl); if (ops) @@ -916,9 +916,9 @@ static struct ins_ops *__ins__find(const struct arch *arch, const char *name, return ins ? ins->ops : NULL; } -struct ins_ops *ins__find(const struct arch *arch, const char *name, struct disasm_line *dl) +const struct ins_ops *ins__find(const struct arch *arch, const char *name, struct disasm_line *dl) { - struct ins_ops *ops = __ins__find(arch, name, dl); + const struct ins_ops *ops = __ins__find(arch, name, dl); if (!ops && arch->associate_instruction_ops) ops = arch->associate_instruction_ops((struct arch *)arch, name); diff --git a/tools/perf/util/disasm.h b/tools/perf/util/disasm.h index 273a9c906514..dc5233f2a773 100644 --- a/tools/perf/util/disasm.h +++ b/tools/perf/util/disasm.h @@ -22,7 +22,7 @@ struct arch { struct ins *instructions; size_t nr_instructions; size_t nr_instructions_allocated; - struct ins_ops *(*associate_instruction_ops)(struct arch *arch, const char *name); + const struct ins_ops *(*associate_instruction_ops)(struct arch *arch, const char *name); bool sorted_instructions; bool initialized; const char *insn_suffix; @@ -52,7 +52,7 @@ struct arch { struct ins { const char *name; - struct ins_ops *ops; + const struct ins_ops *ops; }; struct ins_operands { @@ -108,7 +108,7 @@ struct annotate_args { const struct arch *arch__find(const char *name); bool arch__is(const struct arch *arch, const char *name); -struct ins_ops *ins__find(const struct arch *arch, const char *name, struct disasm_line *dl); +const struct ins_ops *ins__find(const struct arch *arch, const char *name, struct disasm_line *dl); bool ins__is_call(const struct ins *ins); bool ins__is_jump(const struct ins *ins); -- 2.52.0.457.g6b5491de43-goog