[Feature]add MT2731_MP2_MR2_SVN388 baseline version
Change-Id: Ief04314834b31e27effab435d3ca8ba33b499059
diff --git a/src/kernel/linux/v4.14/tools/perf/util/srcline.c b/src/kernel/linux/v4.14/tools/perf/util/srcline.c
new file mode 100644
index 0000000..4105682
--- /dev/null
+++ b/src/kernel/linux/v4.14/tools/perf/util/srcline.c
@@ -0,0 +1,527 @@
+// SPDX-License-Identifier: GPL-2.0
+#include <inttypes.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <linux/kernel.h>
+
+#include "util/dso.h"
+#include "util/util.h"
+#include "util/debug.h"
+#include "util/callchain.h"
+#include "srcline.h"
+
+#include "symbol.h"
+
+bool srcline_full_filename;
+
+static const char *dso__name(struct dso *dso)
+{
+ const char *dso_name;
+
+ if (dso->symsrc_filename)
+ dso_name = dso->symsrc_filename;
+ else
+ dso_name = dso->long_name;
+
+ if (dso_name[0] == '[')
+ return NULL;
+
+ if (!strncmp(dso_name, "/tmp/perf-", 10))
+ return NULL;
+
+ return dso_name;
+}
+
+static int inline_list__append(char *filename, char *funcname, int line_nr,
+ struct inline_node *node, struct dso *dso)
+{
+ struct inline_list *ilist;
+ char *demangled;
+
+ ilist = zalloc(sizeof(*ilist));
+ if (ilist == NULL)
+ return -1;
+
+ ilist->filename = filename;
+ ilist->line_nr = line_nr;
+
+ if (dso != NULL) {
+ demangled = dso__demangle_sym(dso, 0, funcname);
+ if (demangled == NULL) {
+ ilist->funcname = funcname;
+ } else {
+ ilist->funcname = demangled;
+ free(funcname);
+ }
+ }
+
+ if (callchain_param.order == ORDER_CALLEE)
+ list_add_tail(&ilist->list, &node->val);
+ else
+ list_add(&ilist->list, &node->val);
+
+ return 0;
+}
+
+#ifdef HAVE_LIBBFD_SUPPORT
+
+/*
+ * Implement addr2line using libbfd.
+ */
+#define PACKAGE "perf"
+#include <bfd.h>
+
+struct a2l_data {
+ const char *input;
+ u64 addr;
+
+ bool found;
+ const char *filename;
+ const char *funcname;
+ unsigned line;
+
+ bfd *abfd;
+ asymbol **syms;
+};
+
+static int bfd_error(const char *string)
+{
+ const char *errmsg;
+
+ errmsg = bfd_errmsg(bfd_get_error());
+ fflush(stdout);
+
+ if (string)
+ pr_debug("%s: %s\n", string, errmsg);
+ else
+ pr_debug("%s\n", errmsg);
+
+ return -1;
+}
+
+static int slurp_symtab(bfd *abfd, struct a2l_data *a2l)
+{
+ long storage;
+ long symcount;
+ asymbol **syms;
+ bfd_boolean dynamic = FALSE;
+
+ if ((bfd_get_file_flags(abfd) & HAS_SYMS) == 0)
+ return bfd_error(bfd_get_filename(abfd));
+
+ storage = bfd_get_symtab_upper_bound(abfd);
+ if (storage == 0L) {
+ storage = bfd_get_dynamic_symtab_upper_bound(abfd);
+ dynamic = TRUE;
+ }
+ if (storage < 0L)
+ return bfd_error(bfd_get_filename(abfd));
+
+ syms = malloc(storage);
+ if (dynamic)
+ symcount = bfd_canonicalize_dynamic_symtab(abfd, syms);
+ else
+ symcount = bfd_canonicalize_symtab(abfd, syms);
+
+ if (symcount < 0) {
+ free(syms);
+ return bfd_error(bfd_get_filename(abfd));
+ }
+
+ a2l->syms = syms;
+ return 0;
+}
+
+static void find_address_in_section(bfd *abfd, asection *section, void *data)
+{
+ bfd_vma pc, vma;
+ bfd_size_type size;
+ struct a2l_data *a2l = data;
+
+ if (a2l->found)
+ return;
+
+ if ((bfd_get_section_flags(abfd, section) & SEC_ALLOC) == 0)
+ return;
+
+ pc = a2l->addr;
+ vma = bfd_get_section_vma(abfd, section);
+ size = bfd_get_section_size(section);
+
+ if (pc < vma || pc >= vma + size)
+ return;
+
+ a2l->found = bfd_find_nearest_line(abfd, section, a2l->syms, pc - vma,
+ &a2l->filename, &a2l->funcname,
+ &a2l->line);
+
+ if (a2l->filename && !strlen(a2l->filename))
+ a2l->filename = NULL;
+}
+
+static struct a2l_data *addr2line_init(const char *path)
+{
+ bfd *abfd;
+ struct a2l_data *a2l = NULL;
+
+ abfd = bfd_openr(path, NULL);
+ if (abfd == NULL)
+ return NULL;
+
+ if (!bfd_check_format(abfd, bfd_object))
+ goto out;
+
+ a2l = zalloc(sizeof(*a2l));
+ if (a2l == NULL)
+ goto out;
+
+ a2l->abfd = abfd;
+ a2l->input = strdup(path);
+ if (a2l->input == NULL)
+ goto out;
+
+ if (slurp_symtab(abfd, a2l))
+ goto out;
+
+ return a2l;
+
+out:
+ if (a2l) {
+ zfree((char **)&a2l->input);
+ free(a2l);
+ }
+ bfd_close(abfd);
+ return NULL;
+}
+
+static void addr2line_cleanup(struct a2l_data *a2l)
+{
+ if (a2l->abfd)
+ bfd_close(a2l->abfd);
+ zfree((char **)&a2l->input);
+ zfree(&a2l->syms);
+ free(a2l);
+}
+
+#define MAX_INLINE_NEST 1024
+
+static int inline_list__append_dso_a2l(struct dso *dso,
+ struct inline_node *node)
+{
+ struct a2l_data *a2l = dso->a2l;
+ char *funcname = a2l->funcname ? strdup(a2l->funcname) : NULL;
+ char *filename = a2l->filename ? strdup(a2l->filename) : NULL;
+
+ return inline_list__append(filename, funcname, a2l->line, node, dso);
+}
+
+static int addr2line(const char *dso_name, u64 addr,
+ char **file, unsigned int *line, struct dso *dso,
+ bool unwind_inlines, struct inline_node *node)
+{
+ int ret = 0;
+ struct a2l_data *a2l = dso->a2l;
+
+ if (!a2l) {
+ dso->a2l = addr2line_init(dso_name);
+ a2l = dso->a2l;
+ }
+
+ if (a2l == NULL) {
+ pr_warning("addr2line_init failed for %s\n", dso_name);
+ return 0;
+ }
+
+ a2l->addr = addr;
+ a2l->found = false;
+
+ bfd_map_over_sections(a2l->abfd, find_address_in_section, a2l);
+
+ if (!a2l->found)
+ return 0;
+
+ if (unwind_inlines) {
+ int cnt = 0;
+
+ if (node && inline_list__append_dso_a2l(dso, node))
+ return 0;
+
+ while (bfd_find_inliner_info(a2l->abfd, &a2l->filename,
+ &a2l->funcname, &a2l->line) &&
+ cnt++ < MAX_INLINE_NEST) {
+
+ if (a2l->filename && !strlen(a2l->filename))
+ a2l->filename = NULL;
+
+ if (node != NULL) {
+ if (inline_list__append_dso_a2l(dso, node))
+ return 0;
+ // found at least one inline frame
+ ret = 1;
+ }
+ }
+ }
+
+ if (file) {
+ *file = a2l->filename ? strdup(a2l->filename) : NULL;
+ ret = *file ? 1 : 0;
+ }
+
+ if (line)
+ *line = a2l->line;
+
+ return ret;
+}
+
+void dso__free_a2l(struct dso *dso)
+{
+ struct a2l_data *a2l = dso->a2l;
+
+ if (!a2l)
+ return;
+
+ addr2line_cleanup(a2l);
+
+ dso->a2l = NULL;
+}
+
+static struct inline_node *addr2inlines(const char *dso_name, u64 addr,
+ struct dso *dso)
+{
+ struct inline_node *node;
+
+ node = zalloc(sizeof(*node));
+ if (node == NULL) {
+ perror("not enough memory for the inline node");
+ return NULL;
+ }
+
+ INIT_LIST_HEAD(&node->val);
+ node->addr = addr;
+
+ if (!addr2line(dso_name, addr, NULL, NULL, dso, TRUE, node))
+ goto out_free_inline_node;
+
+ if (list_empty(&node->val))
+ goto out_free_inline_node;
+
+ return node;
+
+out_free_inline_node:
+ inline_node__delete(node);
+ return NULL;
+}
+
+#else /* HAVE_LIBBFD_SUPPORT */
+
+static int filename_split(char *filename, unsigned int *line_nr)
+{
+ char *sep;
+
+ sep = strchr(filename, '\n');
+ if (sep)
+ *sep = '\0';
+
+ if (!strcmp(filename, "??:0"))
+ return 0;
+
+ sep = strchr(filename, ':');
+ if (sep) {
+ *sep++ = '\0';
+ *line_nr = strtoul(sep, NULL, 0);
+ return 1;
+ }
+
+ return 0;
+}
+
+static int addr2line(const char *dso_name, u64 addr,
+ char **file, unsigned int *line_nr,
+ struct dso *dso __maybe_unused,
+ bool unwind_inlines __maybe_unused,
+ struct inline_node *node __maybe_unused)
+{
+ FILE *fp;
+ char cmd[PATH_MAX];
+ char *filename = NULL;
+ size_t len;
+ int ret = 0;
+
+ scnprintf(cmd, sizeof(cmd), "addr2line -e %s %016"PRIx64,
+ dso_name, addr);
+
+ fp = popen(cmd, "r");
+ if (fp == NULL) {
+ pr_warning("popen failed for %s\n", dso_name);
+ return 0;
+ }
+
+ if (getline(&filename, &len, fp) < 0 || !len) {
+ pr_warning("addr2line has no output for %s\n", dso_name);
+ goto out;
+ }
+
+ ret = filename_split(filename, line_nr);
+ if (ret != 1) {
+ free(filename);
+ goto out;
+ }
+
+ *file = filename;
+
+out:
+ pclose(fp);
+ return ret;
+}
+
+void dso__free_a2l(struct dso *dso __maybe_unused)
+{
+}
+
+static struct inline_node *addr2inlines(const char *dso_name, u64 addr,
+ struct dso *dso __maybe_unused)
+{
+ FILE *fp;
+ char cmd[PATH_MAX];
+ struct inline_node *node;
+ char *filename = NULL;
+ size_t len;
+ unsigned int line_nr = 0;
+
+ scnprintf(cmd, sizeof(cmd), "addr2line -e %s -i %016"PRIx64,
+ dso_name, addr);
+
+ fp = popen(cmd, "r");
+ if (fp == NULL) {
+ pr_err("popen failed for %s\n", dso_name);
+ return NULL;
+ }
+
+ node = zalloc(sizeof(*node));
+ if (node == NULL) {
+ perror("not enough memory for the inline node");
+ goto out;
+ }
+
+ INIT_LIST_HEAD(&node->val);
+ node->addr = addr;
+
+ while (getline(&filename, &len, fp) != -1) {
+ if (filename_split(filename, &line_nr) != 1) {
+ free(filename);
+ goto out;
+ }
+
+ if (inline_list__append(filename, NULL, line_nr, node,
+ NULL) != 0)
+ goto out;
+
+ filename = NULL;
+ }
+
+out:
+ pclose(fp);
+
+ if (list_empty(&node->val)) {
+ inline_node__delete(node);
+ return NULL;
+ }
+
+ return node;
+}
+
+#endif /* HAVE_LIBBFD_SUPPORT */
+
+/*
+ * Number of addr2line failures (without success) before disabling it for that
+ * dso.
+ */
+#define A2L_FAIL_LIMIT 123
+
+char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
+ bool show_sym, bool show_addr, bool unwind_inlines)
+{
+ char *file = NULL;
+ unsigned line = 0;
+ char *srcline;
+ const char *dso_name;
+
+ if (!dso->has_srcline)
+ goto out;
+
+ dso_name = dso__name(dso);
+ if (dso_name == NULL)
+ goto out;
+
+ if (!addr2line(dso_name, addr, &file, &line, dso, unwind_inlines, NULL))
+ goto out;
+
+ if (asprintf(&srcline, "%s:%u",
+ srcline_full_filename ? file : basename(file),
+ line) < 0) {
+ free(file);
+ goto out;
+ }
+
+ dso->a2l_fails = 0;
+
+ free(file);
+ return srcline;
+
+out:
+ if (dso->a2l_fails && ++dso->a2l_fails > A2L_FAIL_LIMIT) {
+ dso->has_srcline = 0;
+ dso__free_a2l(dso);
+ }
+
+ if (!show_addr)
+ return (show_sym && sym) ?
+ strndup(sym->name, sym->namelen) : NULL;
+
+ if (sym) {
+ if (asprintf(&srcline, "%s+%" PRIu64, show_sym ? sym->name : "",
+ addr - sym->start) < 0)
+ return SRCLINE_UNKNOWN;
+ } else if (asprintf(&srcline, "%s[%" PRIx64 "]", dso->short_name, addr) < 0)
+ return SRCLINE_UNKNOWN;
+ return srcline;
+}
+
+void free_srcline(char *srcline)
+{
+ if (srcline && strcmp(srcline, SRCLINE_UNKNOWN) != 0)
+ free(srcline);
+}
+
+char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
+ bool show_sym, bool show_addr)
+{
+ return __get_srcline(dso, addr, sym, show_sym, show_addr, false);
+}
+
+struct inline_node *dso__parse_addr_inlines(struct dso *dso, u64 addr)
+{
+ const char *dso_name;
+
+ dso_name = dso__name(dso);
+ if (dso_name == NULL)
+ return NULL;
+
+ return addr2inlines(dso_name, addr, dso);
+}
+
+void inline_node__delete(struct inline_node *node)
+{
+ struct inline_list *ilist, *tmp;
+
+ list_for_each_entry_safe(ilist, tmp, &node->val, list) {
+ list_del_init(&ilist->list);
+ zfree(&ilist->filename);
+ zfree(&ilist->funcname);
+ free(ilist);
+ }
+
+ free(node);
+}