diff options
Diffstat (limited to 'tools/perf/util/env.c')
| -rw-r--r-- | tools/perf/util/env.c | 26 |
1 files changed, 24 insertions, 2 deletions
diff --git a/tools/perf/util/env.c b/tools/perf/util/env.c index cec2e6cad8aa..8f7ff0035c41 100644 --- a/tools/perf/util/env.c +++ b/tools/perf/util/env.c @@ -219,13 +219,35 @@ void perf_env__exit(struct perf_env *env) zfree(&env->hybrid_cpc_nodes); } -void perf_env__init(struct perf_env *env __maybe_unused) +void perf_env__init(struct perf_env *env) { #ifdef HAVE_LIBBPF_SUPPORT env->bpf_progs.infos = RB_ROOT; env->bpf_progs.btfs = RB_ROOT; init_rwsem(&env->bpf_progs.lock); #endif + env->kernel_is_64_bit = -1; +} + +static void perf_env__init_kernel_mode(struct perf_env *env) +{ + const char *arch = perf_env__raw_arch(env); + + if (!strncmp(arch, "x86_64", 6) || !strncmp(arch, "aarch64", 7) || + !strncmp(arch, "arm64", 5) || !strncmp(arch, "mips64", 6) || + !strncmp(arch, "parisc64", 8) || !strncmp(arch, "riscv64", 7) || + !strncmp(arch, "s390x", 5) || !strncmp(arch, "sparc64", 7)) + env->kernel_is_64_bit = 1; + else + env->kernel_is_64_bit = 0; +} + +int perf_env__kernel_is_64_bit(struct perf_env *env) +{ + if (env->kernel_is_64_bit == -1) + perf_env__init_kernel_mode(env); + + return env->kernel_is_64_bit; } int perf_env__set_cmdline(struct perf_env *env, int argc, const char *argv[]) @@ -349,7 +371,7 @@ static const char *normalize_arch(char *arch) return "x86"; if (!strcmp(arch, "sun4u") || !strncmp(arch, "sparc", 5)) return "sparc"; - if (!strcmp(arch, "aarch64") || !strcmp(arch, "arm64")) + if (!strncmp(arch, "aarch64", 7) || !strncmp(arch, "arm64", 5)) return "arm64"; if (!strncmp(arch, "arm", 3) || !strcmp(arch, "sa110")) return "arm"; |