From: Ian Rogers <irogers@google.com>
Date: Mon, 29 Sep 2025 19:07:55 +0000 (-0700)
Subject: perf capstone: Remove open_capstone_handle
X-Git-Tag: v6.18-rc1~35^2~31
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=2836ed1748ccc567fddd51d4544a35f1e0f43136;p=thirdparty%2Fkernel%2Flinux.git

perf capstone: Remove open_capstone_handle

open_capstone_handle is similar to capstone_init and used only by
symbol__disassemble_capstone. symbol__disassemble_capstone_powerpc
already uses capstone_init, transition symbol__disassemble_capstone
and eliminate open_capstone_handle.

Signed-off-by: Ian Rogers <irogers@google.com>
Cc: Adrian Hunter <adrian.hunter@intel.com>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Alexandre Ghiti <alexghiti@rivosinc.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Athira Rajeev <atrajeev@linux.ibm.com>
Cc: Bill Wendling <morbo@google.com>
Cc: Charlie Jenkins <charlie@rivosinc.com>
Cc: Collin Funk <collin.funk1@gmail.com>
Cc: Dmitriy Vyukov <dvyukov@google.com>
Cc: Dr. David Alan Gilbert <linux@treblig.org>
Cc: Eric Biggers <ebiggers@kernel.org>
Cc: Haibo Xu <haibo1.xu@intel.com>
Cc: Ingo Molnar <mingo@redhat.com>
Cc: James Clark <james.clark@linaro.org>
Cc: Jiri Olsa <jolsa@kernel.org>
Cc: Justin Stitt <justinstitt@google.com>
Cc: Li Huafei <lihuafei1@huawei.com>
Cc: Mark Rutland <mark.rutland@arm.com>
Cc: Masami Hiramatsu <mhiramat@kernel.org>
Cc: Namhyung Kim <namhyung@kernel.org>
Cc: Nathan Chancellor <nathan@kernel.org>
Cc: Nick Desaulniers <nick.desaulniers+lkml@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Song Liu <song@kernel.org>
Cc: Stephen Brennan <stephen.s.brennan@oracle.com>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
---

diff --git a/tools/perf/util/capstone.c b/tools/perf/util/capstone.c
index dd58e574aa52d..01e47d5c8e3ea 100644
--- a/tools/perf/util/capstone.c
+++ b/tools/perf/util/capstone.c
@@ -137,33 +137,6 @@ ssize_t capstone__fprintf_insn_asm(struct machine *machine __maybe_unused,
 #endif
 }
 
-#ifdef HAVE_LIBCAPSTONE_SUPPORT
-static int open_capstone_handle(struct annotate_args *args, bool is_64bit, csh *handle)
-{
-	struct annotation_options *opt = args->options;
-	cs_mode mode = is_64bit ? CS_MODE_64 : CS_MODE_32;
-
-	/* TODO: support more architectures */
-	if (!arch__is(args->arch, "x86"))
-		return -1;
-
-	if (cs_open(CS_ARCH_X86, mode, handle) != CS_ERR_OK)
-		return -1;
-
-	if (!opt->disassembler_style ||
-	    !strcmp(opt->disassembler_style, "att"))
-		cs_option(*handle, CS_OPT_SYNTAX, CS_OPT_SYNTAX_ATT);
-
-	/*
-	 * Resolving address operands to symbols is implemented
-	 * on x86 by investigating instruction details.
-	 */
-	cs_option(*handle, CS_OPT_DETAIL, CS_OPT_ON);
-
-	return 0;
-}
-#endif
-
 #ifdef HAVE_LIBCAPSTONE_SUPPORT
 static void print_capstone_detail(cs_insn *insn, char *buf, size_t len,
 				  struct annotate_args *args, u64 addr)
@@ -309,6 +282,7 @@ int symbol__disassemble_capstone(const char *filename __maybe_unused,
 	cs_insn *insn = NULL;
 	char disasm_buf[512];
 	struct disasm_line *dl;
+	bool disassembler_style = false;
 
 	if (args->options->objdump_path)
 		return -1;
@@ -333,7 +307,11 @@ int symbol__disassemble_capstone(const char *filename __maybe_unused,
 
 	annotation_line__add(&dl->al, &notes->src->source);
 
-	if (open_capstone_handle(args, is_64bit, &handle) < 0)
+	if (!args->options->disassembler_style ||
+	    !strcmp(args->options->disassembler_style, "att"))
+		disassembler_style = true;
+
+	if (capstone_init(maps__machine(args->ms.maps), &handle, is_64bit, disassembler_style) < 0)
 		goto err;
 
 	needs_cs_close = true;