]> git.karo-electronics.de Git - karo-tx-linux.git/blobdiff - tools/perf/util/srcline.c
perf tools: Move srcline definitions to separate header
[karo-tx-linux.git] / tools / perf / util / srcline.c
index b4db3f48e3b09784f00d610c8cbffea8c26e38c6..df051a52393c1de8e85f46d43f567755888133e7 100644 (file)
@@ -1,3 +1,4 @@
+#include <inttypes.h>
 #include <stdio.h>
 #include <stdlib.h>
 #include <string.h>
@@ -7,11 +8,59 @@
 #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);
+               }
+       }
+
+       list_add_tail(&ilist->list, &node->val);
+
+       return 0;
+}
+
 #ifdef HAVE_LIBBFD_SUPPORT
 
 /*
@@ -151,9 +200,17 @@ static void addr2line_cleanup(struct a2l_data *a2l)
 
 #define MAX_INLINE_NEST 1024
 
+static void inline_list__reverse(struct inline_node *node)
+{
+       struct inline_list *ilist, *n;
+
+       list_for_each_entry_safe_reverse(ilist, n, &node->val, list)
+               list_move_tail(&ilist->list, &node->val);
+}
+
 static int addr2line(const char *dso_name, u64 addr,
                     char **file, unsigned int *line, struct dso *dso,
-                    bool unwind_inlines)
+                    bool unwind_inlines, struct inline_node *node)
 {
        int ret = 0;
        struct a2l_data *a2l = dso->a2l;
@@ -178,8 +235,21 @@ static int addr2line(const char *dso_name, u64 addr,
 
                while (bfd_find_inliner_info(a2l->abfd, &a2l->filename,
                                             &a2l->funcname, &a2l->line) &&
-                      cnt++ < MAX_INLINE_NEST)
-                       ;
+                      cnt++ < MAX_INLINE_NEST) {
+
+                       if (node != NULL) {
+                               if (inline_list__append(strdup(a2l->filename),
+                                                       strdup(a2l->funcname),
+                                                       a2l->line, node,
+                                                       dso) != 0)
+                                       return 0;
+                       }
+               }
+
+               if ((node != NULL) &&
+                   (callchain_param.order != ORDER_CALLEE)) {
+                       inline_list__reverse(node);
+               }
        }
 
        if (a2l->found && a2l->filename) {
@@ -205,18 +275,68 @@ void dso__free_a2l(struct dso *dso)
        dso->a2l = NULL;
 }
 
+static struct inline_node *addr2inlines(const char *dso_name, u64 addr,
+       struct dso *dso)
+{
+       char *file = NULL;
+       unsigned int line = 0;
+       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, &file, &line, 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)
+                    bool unwind_inlines __maybe_unused,
+                    struct inline_node *node __maybe_unused)
 {
        FILE *fp;
        char cmd[PATH_MAX];
        char *filename = NULL;
        size_t len;
-       char *sep;
        int ret = 0;
 
        scnprintf(cmd, sizeof(cmd), "addr2line -e %s %016"PRIx64,
@@ -233,23 +353,14 @@ static int addr2line(const char *dso_name, u64 addr,
                goto out;
        }
 
-       sep = strchr(filename, '\n');
-       if (sep)
-               *sep = '\0';
-
-       if (!strcmp(filename, "??:0")) {
-               pr_debug("no debugging info in %s\n", dso_name);
+       ret = filename_split(filename, line_nr);
+       if (ret != 1) {
                free(filename);
                goto out;
        }
 
-       sep = strchr(filename, ':');
-       if (sep) {
-               *sep++ = '\0';
-               *file = filename;
-               *line_nr = strtoul(sep, NULL, 0);
-               ret = 1;
-       }
+       *file = filename;
+
 out:
        pclose(fp);
        return ret;
@@ -259,6 +370,58 @@ 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 */
 
 /*
@@ -268,7 +431,7 @@ void dso__free_a2l(struct dso *dso __maybe_unused)
 #define A2L_FAIL_LIMIT 123
 
 char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
-                 bool show_sym, bool unwind_inlines)
+                 bool show_sym, bool show_addr, bool unwind_inlines)
 {
        char *file = NULL;
        unsigned line = 0;
@@ -278,18 +441,11 @@ char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
        if (!dso->has_srcline)
                goto out;
 
-       if (dso->symsrc_filename)
-               dso_name = dso->symsrc_filename;
-       else
-               dso_name = dso->long_name;
-
-       if (dso_name[0] == '[')
-               goto out;
-
-       if (!strncmp(dso_name, "/tmp/perf-", 10))
+       dso_name = dso__name(dso);
+       if (dso_name == NULL)
                goto out;
 
-       if (!addr2line(dso_name, addr, &file, &line, dso, unwind_inlines))
+       if (!addr2line(dso_name, addr, &file, &line, dso, unwind_inlines, NULL))
                goto out;
 
        if (asprintf(&srcline, "%s:%u",
@@ -309,6 +465,11 @@ out:
                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)
@@ -325,7 +486,32 @@ void free_srcline(char *srcline)
 }
 
 char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
-                 bool show_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)
 {
-       return __get_srcline(dso, addr, sym, show_sym, false);
+       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);
 }