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author | Irina Tirdea <irina.tirdea@intel.com> | 2012-10-16 02:33:38 +0300 |
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committer | Arnaldo Carvalho de Melo <acme@redhat.com> | 2012-10-24 14:20:11 -0200 |
commit | 68e94f4eb56d92ccb617a98fcac5e575702ec4fd (patch) | |
tree | e032cf52fc4cc66c845a1985bd5c58706e869706 /tools | |
parent | feb8ada4ea5540ee986b23abd95597118729704c (diff) | |
download | op-kernel-dev-68e94f4eb56d92ccb617a98fcac5e575702ec4fd.zip op-kernel-dev-68e94f4eb56d92ccb617a98fcac5e575702ec4fd.tar.gz |
perf tools: Try to find cross-built objdump path
As we have architecture information of saved perf.data file, we can try
to find cross-built objdump path.
The triplets include support for Android (arm, x86 and mips
architectures).
Signed-off-by: Irina Tirdea <irina.tirdea@intel.com>
Originally-by: Namhyung Kim <namhyung@kernel.org>
Acked-by: Namhyung Kim <namhyung@kernel.org>
Cc: David Ahern <dsahern@gmail.com>
Cc: Ingo Molnar <mingo@kernel.org>
Cc: Jiri Olsa <jolsa@redhat.com>
Cc: Namhyung Kim <namhyung.kim@lge.com>
Cc: Paul Mackerras <paulus@samba.org>
Cc: Pekka Enberg <penberg@kernel.org>
Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
Cc: Steven Rostedt <rostedt@goodmis.org>
Link: http://lkml.kernel.org/r/1350344020-8071-5-git-send-email-irina.tirdea@gmail.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Diffstat (limited to 'tools')
-rw-r--r-- | tools/perf/Makefile | 2 | ||||
-rw-r--r-- | tools/perf/arch/common.c | 178 | ||||
-rw-r--r-- | tools/perf/arch/common.h | 10 | ||||
-rw-r--r-- | tools/perf/builtin-annotate.c | 7 | ||||
-rw-r--r-- | tools/perf/builtin-report.c | 7 | ||||
-rw-r--r-- | tools/perf/util/annotate.h | 1 |
6 files changed, 204 insertions, 1 deletions
diff --git a/tools/perf/Makefile b/tools/perf/Makefile index 6790cb4..78a81ed 100644 --- a/tools/perf/Makefile +++ b/tools/perf/Makefile @@ -426,6 +426,8 @@ LIB_OBJS += $(OUTPUT)ui/helpline.o LIB_OBJS += $(OUTPUT)ui/hist.o LIB_OBJS += $(OUTPUT)ui/stdio/hist.o +LIB_OBJS += $(OUTPUT)arch/common.o + BUILTIN_OBJS += $(OUTPUT)builtin-annotate.o BUILTIN_OBJS += $(OUTPUT)builtin-bench.o # Benchmark modules diff --git a/tools/perf/arch/common.c b/tools/perf/arch/common.c new file mode 100644 index 0000000..2367b25 --- /dev/null +++ b/tools/perf/arch/common.c @@ -0,0 +1,178 @@ +#include <stdio.h> +#include <sys/utsname.h> +#include "common.h" +#include "../util/debug.h" + +const char *const arm_triplets[] = { + "arm-eabi-", + "arm-linux-androideabi-", + "arm-unknown-linux-", + "arm-unknown-linux-gnu-", + "arm-unknown-linux-gnueabi-", + NULL +}; + +const char *const powerpc_triplets[] = { + "powerpc-unknown-linux-gnu-", + "powerpc64-unknown-linux-gnu-", + NULL +}; + +const char *const s390_triplets[] = { + "s390-ibm-linux-", + NULL +}; + +const char *const sh_triplets[] = { + "sh-unknown-linux-gnu-", + "sh64-unknown-linux-gnu-", + NULL +}; + +const char *const sparc_triplets[] = { + "sparc-unknown-linux-gnu-", + "sparc64-unknown-linux-gnu-", + NULL +}; + +const char *const x86_triplets[] = { + "x86_64-pc-linux-gnu-", + "x86_64-unknown-linux-gnu-", + "i686-pc-linux-gnu-", + "i586-pc-linux-gnu-", + "i486-pc-linux-gnu-", + "i386-pc-linux-gnu-", + "i686-linux-android-", + "i686-android-linux-", + NULL +}; + +const char *const mips_triplets[] = { + "mips-unknown-linux-gnu-", + "mipsel-linux-android-", + NULL +}; + +static bool lookup_path(char *name) +{ + bool found = false; + char *path, *tmp; + char buf[PATH_MAX]; + char *env = getenv("PATH"); + + if (!env) + return false; + + env = strdup(env); + if (!env) + return false; + + path = strtok_r(env, ":", &tmp); + while (path) { + scnprintf(buf, sizeof(buf), "%s/%s", path, name); + if (access(buf, F_OK) == 0) { + found = true; + break; + } + path = strtok_r(NULL, ":", &tmp); + } + free(env); + return found; +} + +static int lookup_triplets(const char *const *triplets, const char *name) +{ + int i; + char buf[PATH_MAX]; + + for (i = 0; triplets[i] != NULL; i++) { + scnprintf(buf, sizeof(buf), "%s%s", triplets[i], name); + if (lookup_path(buf)) + return i; + } + return -1; +} + +static int perf_session_env__lookup_binutils_path(struct perf_session_env *env, + const char *name, + const char **path) +{ + int idx; + char *arch, *cross_env; + struct utsname uts; + const char *const *path_list; + char *buf = NULL; + + if (uname(&uts) < 0) + goto out; + + /* + * We don't need to try to find objdump path for native system. + * Just use default binutils path (e.g.: "objdump"). + */ + if (!strcmp(uts.machine, env->arch)) + goto out; + + cross_env = getenv("CROSS_COMPILE"); + if (cross_env) { + if (asprintf(&buf, "%s%s", cross_env, name) < 0) + goto out_error; + if (buf[0] == '/') { + if (access(buf, F_OK) == 0) + goto out; + goto out_error; + } + if (lookup_path(buf)) + goto out; + free(buf); + } + + arch = env->arch; + + if (!strcmp(arch, "arm")) + path_list = arm_triplets; + else if (!strcmp(arch, "powerpc")) + path_list = powerpc_triplets; + else if (!strcmp(arch, "sh")) + path_list = sh_triplets; + else if (!strcmp(arch, "s390")) + path_list = s390_triplets; + else if (!strcmp(arch, "sparc")) + path_list = sparc_triplets; + else if (!strcmp(arch, "x86") || !strcmp(arch, "i386") || + !strcmp(arch, "i486") || !strcmp(arch, "i586") || + !strcmp(arch, "i686")) + path_list = x86_triplets; + else if (!strcmp(arch, "mips")) + path_list = mips_triplets; + else { + ui__error("binutils for %s not supported.\n", arch); + goto out_error; + } + + idx = lookup_triplets(path_list, name); + if (idx < 0) { + ui__error("Please install %s for %s.\n" + "You can add it to PATH, set CROSS_COMPILE or " + "override the default using --%s.\n", + name, arch, name); + goto out_error; + } + + if (asprintf(&buf, "%s%s", path_list[idx], name) < 0) + goto out_error; + +out: + *path = buf; + return 0; +out_error: + free(buf); + *path = NULL; + return -1; +} + +int perf_session_env__lookup_objdump(struct perf_session_env *env) +{ + return perf_session_env__lookup_binutils_path(env, "objdump", + &objdump_path); +} diff --git a/tools/perf/arch/common.h b/tools/perf/arch/common.h new file mode 100644 index 0000000..ede246e --- /dev/null +++ b/tools/perf/arch/common.h @@ -0,0 +1,10 @@ +#ifndef ARCH_PERF_COMMON_H +#define ARCH_PERF_COMMON_H + +#include "../util/session.h" + +extern const char *objdump_path; + +int perf_session_env__lookup_objdump(struct perf_session_env *env); + +#endif /* ARCH_PERF_COMMON_H */ diff --git a/tools/perf/builtin-annotate.c b/tools/perf/builtin-annotate.c index 690fa9a..c4bb645 100644 --- a/tools/perf/builtin-annotate.c +++ b/tools/perf/builtin-annotate.c @@ -28,6 +28,7 @@ #include "util/hist.h" #include "util/session.h" #include "util/tool.h" +#include "arch/common.h" #include <linux/bitmap.h> @@ -186,6 +187,12 @@ static int __cmd_annotate(struct perf_annotate *ann) goto out_delete; } + if (!objdump_path) { + ret = perf_session_env__lookup_objdump(&session->header.env); + if (ret) + goto out_delete; + } + ret = perf_session__process_events(session, &ann->tool); if (ret) goto out_delete; diff --git a/tools/perf/builtin-report.c b/tools/perf/builtin-report.c index 5104a40..90d1162 100644 --- a/tools/perf/builtin-report.c +++ b/tools/perf/builtin-report.c @@ -33,6 +33,7 @@ #include "util/thread.h" #include "util/sort.h" #include "util/hist.h" +#include "arch/common.h" #include <linux/bitmap.h> @@ -672,6 +673,12 @@ int cmd_report(int argc, const char **argv, const char *prefix __maybe_unused) has_br_stack = perf_header__has_feat(&session->header, HEADER_BRANCH_STACK); + if (!objdump_path) { + ret = perf_session_env__lookup_objdump(&session->header.env); + if (ret) + goto error; + } + if (sort__branch_mode == -1 && has_br_stack) sort__branch_mode = 1; diff --git a/tools/perf/util/annotate.h b/tools/perf/util/annotate.h index 39242dc..a4dd25a 100644 --- a/tools/perf/util/annotate.h +++ b/tools/perf/util/annotate.h @@ -154,6 +154,5 @@ static inline int symbol__tui_annotate(struct symbol *sym __maybe_unused, #endif extern const char *disassembler_style; -extern const char *objdump_path; #endif /* __PERF_ANNOTATE_H */ |