diff options
Diffstat (limited to 'tools/perf/util/llvm.c')
| -rw-r--r-- | tools/perf/util/llvm.c | 33 |
1 files changed, 21 insertions, 12 deletions
diff --git a/tools/perf/util/llvm.c b/tools/perf/util/llvm.c index ddc737194692..b71649d616e3 100644 --- a/tools/perf/util/llvm.c +++ b/tools/perf/util/llvm.c @@ -74,8 +74,19 @@ void dso__free_a2l_llvm(struct dso *dso __maybe_unused) /* Nothing to free. */ } +#ifdef HAVE_LIBLLVM_SUPPORT +static void init_llvm(void) +{ + static bool init; + + if (!init) { + LLVMInitializeAllTargetInfos(); + LLVMInitializeAllTargetMCs(); + LLVMInitializeAllDisassemblers(); + init = true; + } +} -#if defined(HAVE_LIBLLVM_SUPPORT) struct find_file_offset_data { u64 ip; u64 offset; @@ -184,7 +195,6 @@ int symbol__disassemble_llvm(const char *filename, struct symbol *sym, u64 len; u64 pc; bool is_64bit; - char triplet[64]; char disasm_buf[2048]; size_t disasm_len; struct disasm_line *dl; @@ -197,26 +207,25 @@ int symbol__disassemble_llvm(const char *filename, struct symbol *sym, if (args->options->objdump_path) return -1; - LLVMInitializeAllTargetInfos(); - LLVMInitializeAllTargetMCs(); - LLVMInitializeAllDisassemblers(); - buf = read_symbol(filename, map, sym, &len, &is_64bit); if (buf == NULL) return -1; + init_llvm(); if (arch__is(args->arch, "x86")) { - if (is_64bit) - scnprintf(triplet, sizeof(triplet), "x86_64-pc-linux"); - else - scnprintf(triplet, sizeof(triplet), "i686-pc-linux"); + const char *triplet = is_64bit ? "x86_64-pc-linux" : "i686-pc-linux"; + + disasm = LLVMCreateDisasm(triplet, &storage, /*tag_type=*/0, + /*get_op_info=*/NULL, symbol_lookup_callback); } else { + char triplet[64]; + scnprintf(triplet, sizeof(triplet), "%s-linux-gnu", args->arch->name); + disasm = LLVMCreateDisasm(triplet, &storage, /*tag_type=*/0, + /*get_op_info=*/NULL, symbol_lookup_callback); } - disasm = LLVMCreateDisasm(triplet, &storage, 0, NULL, - symbol_lookup_callback); if (disasm == NULL) goto err; |