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6d99a79cb4
Introduce basic 'perf annotate' support for ARC to be able to use anotation via stdio interface. Signed-off-by: Eugeniy Paltsev <Eugeniy.Paltsev@synopsys.com> Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com> Cc: Alexey Brodkin <alexey.brodkin@synopsys.com> Cc: Jiri Olsa <jolsa@redhat.com> Cc: linux-snps-arc@lists.infradead.org Cc: Namhyung Kim <namhyung@kernel.org> Cc: Peter Zijlstra <peterz@infradead.org> Cc: Vineet Gupta <vineet.gupta1@synopsys.com> Link: http://lkml.kernel.org/r/20181204175118.25232-1-Eugeniy.Paltsev@synopsys.com Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
222 lines
4.5 KiB
C
222 lines
4.5 KiB
C
// SPDX-License-Identifier: GPL-2.0
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#include <stdio.h>
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#include "common.h"
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#include "../util/env.h"
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#include "../util/util.h"
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#include "../util/debug.h"
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const char *const arc_triplets[] = {
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"arc-linux-",
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"arc-snps-linux-uclibc-",
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"arc-snps-linux-gnu-",
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NULL
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};
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const char *const arm_triplets[] = {
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"arm-eabi-",
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"arm-linux-androideabi-",
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"arm-unknown-linux-",
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"arm-unknown-linux-gnu-",
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"arm-unknown-linux-gnueabi-",
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"arm-linux-gnu-",
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"arm-linux-gnueabihf-",
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"arm-none-eabi-",
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NULL
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};
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const char *const arm64_triplets[] = {
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"aarch64-linux-android-",
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"aarch64-linux-gnu-",
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NULL
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};
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const char *const powerpc_triplets[] = {
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"powerpc-unknown-linux-gnu-",
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"powerpc-linux-gnu-",
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"powerpc64-unknown-linux-gnu-",
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"powerpc64-linux-gnu-",
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"powerpc64le-linux-gnu-",
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NULL
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};
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const char *const s390_triplets[] = {
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"s390-ibm-linux-",
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"s390x-linux-gnu-",
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NULL
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};
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const char *const sh_triplets[] = {
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"sh-unknown-linux-gnu-",
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"sh64-unknown-linux-gnu-",
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"sh-linux-gnu-",
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"sh64-linux-gnu-",
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NULL
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};
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const char *const sparc_triplets[] = {
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"sparc-unknown-linux-gnu-",
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"sparc64-unknown-linux-gnu-",
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"sparc64-linux-gnu-",
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NULL
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};
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const char *const x86_triplets[] = {
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"x86_64-pc-linux-gnu-",
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"x86_64-unknown-linux-gnu-",
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"i686-pc-linux-gnu-",
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"i586-pc-linux-gnu-",
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"i486-pc-linux-gnu-",
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"i386-pc-linux-gnu-",
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"i686-linux-android-",
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"i686-android-linux-",
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"x86_64-linux-gnu-",
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"i586-linux-gnu-",
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NULL
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};
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const char *const mips_triplets[] = {
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"mips-unknown-linux-gnu-",
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"mipsel-linux-android-",
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"mips-linux-gnu-",
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"mips64-linux-gnu-",
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"mips64el-linux-gnuabi64-",
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"mips64-linux-gnuabi64-",
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"mipsel-linux-gnu-",
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NULL
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};
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static bool lookup_path(char *name)
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{
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bool found = false;
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char *path, *tmp = NULL;
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char buf[PATH_MAX];
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char *env = getenv("PATH");
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if (!env)
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return false;
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env = strdup(env);
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if (!env)
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return false;
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path = strtok_r(env, ":", &tmp);
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while (path) {
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scnprintf(buf, sizeof(buf), "%s/%s", path, name);
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if (access(buf, F_OK) == 0) {
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found = true;
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break;
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}
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path = strtok_r(NULL, ":", &tmp);
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}
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free(env);
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return found;
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}
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static int lookup_triplets(const char *const *triplets, const char *name)
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{
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int i;
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char buf[PATH_MAX];
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for (i = 0; triplets[i] != NULL; i++) {
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scnprintf(buf, sizeof(buf), "%s%s", triplets[i], name);
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if (lookup_path(buf))
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return i;
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}
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return -1;
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}
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static int perf_env__lookup_binutils_path(struct perf_env *env,
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const char *name, const char **path)
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{
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int idx;
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const char *arch = perf_env__arch(env), *cross_env;
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const char *const *path_list;
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char *buf = NULL;
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/*
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* We don't need to try to find objdump path for native system.
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* Just use default binutils path (e.g.: "objdump").
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*/
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if (!strcmp(perf_env__arch(NULL), arch))
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goto out;
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cross_env = getenv("CROSS_COMPILE");
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if (cross_env) {
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if (asprintf(&buf, "%s%s", cross_env, name) < 0)
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goto out_error;
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if (buf[0] == '/') {
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if (access(buf, F_OK) == 0)
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goto out;
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goto out_error;
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}
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if (lookup_path(buf))
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goto out;
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zfree(&buf);
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}
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if (!strcmp(arch, "arc"))
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path_list = arc_triplets;
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else if (!strcmp(arch, "arm"))
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path_list = arm_triplets;
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else if (!strcmp(arch, "arm64"))
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path_list = arm64_triplets;
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else if (!strcmp(arch, "powerpc"))
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path_list = powerpc_triplets;
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else if (!strcmp(arch, "sh"))
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path_list = sh_triplets;
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else if (!strcmp(arch, "s390"))
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path_list = s390_triplets;
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else if (!strcmp(arch, "sparc"))
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path_list = sparc_triplets;
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else if (!strcmp(arch, "x86"))
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path_list = x86_triplets;
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else if (!strcmp(arch, "mips"))
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path_list = mips_triplets;
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else {
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ui__error("binutils for %s not supported.\n", arch);
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goto out_error;
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}
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idx = lookup_triplets(path_list, name);
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if (idx < 0) {
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ui__error("Please install %s for %s.\n"
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"You can add it to PATH, set CROSS_COMPILE or "
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"override the default using --%s.\n",
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name, arch, name);
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goto out_error;
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}
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if (asprintf(&buf, "%s%s", path_list[idx], name) < 0)
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goto out_error;
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out:
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*path = buf;
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return 0;
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out_error:
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free(buf);
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*path = NULL;
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return -1;
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}
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int perf_env__lookup_objdump(struct perf_env *env, const char **path)
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{
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/*
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* For live mode, env->arch will be NULL and we can use
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* the native objdump tool.
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*/
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if (env->arch == NULL)
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return 0;
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return perf_env__lookup_binutils_path(env, "objdump", path);
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}
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/*
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* Some architectures have a single address space for kernel and user addresses,
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* which makes it possible to determine if an address is in kernel space or user
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* space.
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*/
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bool perf_env__single_address_space(struct perf_env *env)
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{
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return strcmp(perf_env__arch(env), "sparc");
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}
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