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-rw-r--r--tools/perf/util/callchain.h6
-rw-r--r--tools/perf/util/dwarf-aux.c663
-rw-r--r--tools/perf/util/dwarf-aux.h100
-rw-r--r--tools/perf/util/evsel.c1
-rw-r--r--tools/perf/util/evsel.h1
-rw-r--r--tools/perf/util/header.c5
-rw-r--r--tools/perf/util/hist.c6
-rw-r--r--tools/perf/util/parse-events.c39
-rw-r--r--tools/perf/util/parse-events.h6
-rw-r--r--tools/perf/util/probe-event.c165
-rw-r--r--tools/perf/util/probe-event.h1
-rw-r--r--tools/perf/util/probe-finder.c752
-rw-r--r--tools/perf/util/probe-finder.h43
-rw-r--r--tools/perf/util/python.c17
-rw-r--r--tools/perf/util/session.c132
-rw-r--r--tools/perf/util/session.h9
-rw-r--r--tools/perf/util/sort.c223
-rw-r--r--tools/perf/util/sort.h14
-rw-r--r--tools/perf/util/string.c19
-rw-r--r--tools/perf/util/trace-event-info.c120
-rw-r--r--tools/perf/util/util.h1
21 files changed, 1333 insertions, 990 deletions
diff --git a/tools/perf/util/callchain.h b/tools/perf/util/callchain.h
index 1a79df9f739..9b4ff16cac9 100644
--- a/tools/perf/util/callchain.h
+++ b/tools/perf/util/callchain.h
@@ -14,6 +14,11 @@ enum chain_mode {
CHAIN_GRAPH_REL
};
+enum chain_order {
+ ORDER_CALLER,
+ ORDER_CALLEE
+};
+
struct callchain_node {
struct callchain_node *parent;
struct list_head siblings;
@@ -41,6 +46,7 @@ struct callchain_param {
u32 print_limit;
double min_percent;
sort_chain_func_t sort;
+ enum chain_order order;
};
struct callchain_list {
diff --git a/tools/perf/util/dwarf-aux.c b/tools/perf/util/dwarf-aux.c
new file mode 100644
index 00000000000..fddf40f30d3
--- /dev/null
+++ b/tools/perf/util/dwarf-aux.c
@@ -0,0 +1,663 @@
+/*
+ * dwarf-aux.c : libdw auxiliary interfaces
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <stdbool.h>
+#include "util.h"
+#include "debug.h"
+#include "dwarf-aux.h"
+
+/**
+ * cu_find_realpath - Find the realpath of the target file
+ * @cu_die: A DIE(dwarf information entry) of CU(compilation Unit)
+ * @fname: The tail filename of the target file
+ *
+ * Find the real(long) path of @fname in @cu_die.
+ */
+const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname)
+{
+ Dwarf_Files *files;
+ size_t nfiles, i;
+ const char *src = NULL;
+ int ret;
+
+ if (!fname)
+ return NULL;
+
+ ret = dwarf_getsrcfiles(cu_die, &files, &nfiles);
+ if (ret != 0)
+ return NULL;
+
+ for (i = 0; i < nfiles; i++) {
+ src = dwarf_filesrc(files, i, NULL, NULL);
+ if (strtailcmp(src, fname) == 0)
+ break;
+ }
+ if (i == nfiles)
+ return NULL;
+ return src;
+}
+
+/**
+ * cu_get_comp_dir - Get the path of compilation directory
+ * @cu_die: a CU DIE
+ *
+ * Get the path of compilation directory of given @cu_die.
+ * Since this depends on DW_AT_comp_dir, older gcc will not
+ * embedded it. In that case, this returns NULL.
+ */
+const char *cu_get_comp_dir(Dwarf_Die *cu_die)
+{
+ Dwarf_Attribute attr;
+ if (dwarf_attr(cu_die, DW_AT_comp_dir, &attr) == NULL)
+ return NULL;
+ return dwarf_formstring(&attr);
+}
+
+/**
+ * cu_find_lineinfo - Get a line number and file name for given address
+ * @cu_die: a CU DIE
+ * @addr: An address
+ * @fname: a pointer which returns the file name string
+ * @lineno: a pointer which returns the line number
+ *
+ * Find a line number and file name for @addr in @cu_die.
+ */
+int cu_find_lineinfo(Dwarf_Die *cu_die, unsigned long addr,
+ const char **fname, int *lineno)
+{
+ Dwarf_Line *line;
+ Dwarf_Addr laddr;
+
+ line = dwarf_getsrc_die(cu_die, (Dwarf_Addr)addr);
+ if (line && dwarf_lineaddr(line, &laddr) == 0 &&
+ addr == (unsigned long)laddr && dwarf_lineno(line, lineno) == 0) {
+ *fname = dwarf_linesrc(line, NULL, NULL);
+ if (!*fname)
+ /* line number is useless without filename */
+ *lineno = 0;
+ }
+
+ return *lineno ?: -ENOENT;
+}
+
+/**
+ * die_compare_name - Compare diename and tname
+ * @dw_die: a DIE
+ * @tname: a string of target name
+ *
+ * Compare the name of @dw_die and @tname. Return false if @dw_die has no name.
+ */
+bool die_compare_name(Dwarf_Die *dw_die, const char *tname)
+{
+ const char *name;
+ name = dwarf_diename(dw_die);
+ return name ? (strcmp(tname, name) == 0) : false;
+}
+
+/**
+ * die_get_call_lineno - Get callsite line number of inline-function instance
+ * @in_die: a DIE of an inlined function instance
+ *
+ * Get call-site line number of @in_die. This means from where the inline
+ * function is called.
+ */
+int die_get_call_lineno(Dwarf_Die *in_die)
+{
+ Dwarf_Attribute attr;
+ Dwarf_Word ret;
+
+ if (!dwarf_attr(in_die, DW_AT_call_line, &attr))
+ return -ENOENT;
+
+ dwarf_formudata(&attr, &ret);
+ return (int)ret;
+}
+
+/**
+ * die_get_type - Get type DIE
+ * @vr_die: a DIE of a variable
+ * @die_mem: where to store a type DIE
+ *
+ * Get a DIE of the type of given variable (@vr_die), and store
+ * it to die_mem. Return NULL if fails to get a type DIE.
+ */
+Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
+{
+ Dwarf_Attribute attr;
+
+ if (dwarf_attr_integrate(vr_die, DW_AT_type, &attr) &&
+ dwarf_formref_die(&attr, die_mem))
+ return die_mem;
+ else
+ return NULL;
+}
+
+/* Get a type die, but skip qualifiers */
+static Dwarf_Die *__die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
+{
+ int tag;
+
+ do {
+ vr_die = die_get_type(vr_die, die_mem);
+ if (!vr_die)
+ break;
+ tag = dwarf_tag(vr_die);
+ } while (tag == DW_TAG_const_type ||
+ tag == DW_TAG_restrict_type ||
+ tag == DW_TAG_volatile_type ||
+ tag == DW_TAG_shared_type);
+
+ return vr_die;
+}
+
+/**
+ * die_get_real_type - Get a type die, but skip qualifiers and typedef
+ * @vr_die: a DIE of a variable
+ * @die_mem: where to store a type DIE
+ *
+ * Get a DIE of the type of given variable (@vr_die), and store
+ * it to die_mem. Return NULL if fails to get a type DIE.
+ * If the type is qualifiers (e.g. const) or typedef, this skips it
+ * and tries to find real type (structure or basic types, e.g. int).
+ */
+Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
+{
+ do {
+ vr_die = __die_get_real_type(vr_die, die_mem);
+ } while (vr_die && dwarf_tag(vr_die) == DW_TAG_typedef);
+
+ return vr_die;
+}
+
+/* Get attribute and translate it as a udata */
+static int die_get_attr_udata(Dwarf_Die *tp_die, unsigned int attr_name,
+ Dwarf_Word *result)
+{
+ Dwarf_Attribute attr;
+
+ if (dwarf_attr(tp_die, attr_name, &attr) == NULL ||
+ dwarf_formudata(&attr, result) != 0)
+ return -ENOENT;
+
+ return 0;
+}
+
+/**
+ * die_is_signed_type - Check whether a type DIE is signed or not
+ * @tp_die: a DIE of a type
+ *
+ * Get the encoding of @tp_die and return true if the encoding
+ * is signed.
+ */
+bool die_is_signed_type(Dwarf_Die *tp_die)
+{
+ Dwarf_Word ret;
+
+ if (die_get_attr_udata(tp_die, DW_AT_encoding, &ret))
+ return false;
+
+ return (ret == DW_ATE_signed_char || ret == DW_ATE_signed ||
+ ret == DW_ATE_signed_fixed);
+}
+
+/**
+ * die_get_data_member_location - Get the data-member offset
+ * @mb_die: a DIE of a member of a data structure
+ * @offs: The offset of the member in the data structure
+ *
+ * Get the offset of @mb_die in the data structure including @mb_die, and
+ * stores result offset to @offs. If any error occurs this returns errno.
+ */
+int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs)
+{
+ Dwarf_Attribute attr;
+ Dwarf_Op *expr;
+ size_t nexpr;
+ int ret;
+
+ if (dwarf_attr(mb_die, DW_AT_data_member_location, &attr) == NULL)
+ return -ENOENT;
+
+ if (dwarf_formudata(&attr, offs) != 0) {
+ /* DW_AT_data_member_location should be DW_OP_plus_uconst */
+ ret = dwarf_getlocation(&attr, &expr, &nexpr);
+ if (ret < 0 || nexpr == 0)
+ return -ENOENT;
+
+ if (expr[0].atom != DW_OP_plus_uconst || nexpr != 1) {
+ pr_debug("Unable to get offset:Unexpected OP %x (%zd)\n",
+ expr[0].atom, nexpr);
+ return -ENOTSUP;
+ }
+ *offs = (Dwarf_Word)expr[0].number;
+ }
+ return 0;
+}
+
+/**
+ * die_find_child - Generic DIE search function in DIE tree
+ * @rt_die: a root DIE
+ * @callback: a callback function
+ * @data: a user data passed to the callback function
+ * @die_mem: a buffer for result DIE
+ *
+ * Trace DIE tree from @rt_die and call @callback for each child DIE.
+ * If @callback returns DIE_FIND_CB_END, this stores the DIE into
+ * @die_mem and returns it. If @callback returns DIE_FIND_CB_CONTINUE,
+ * this continues to trace the tree. Optionally, @callback can return
+ * DIE_FIND_CB_CHILD and DIE_FIND_CB_SIBLING, those means trace only
+ * the children and trace only the siblings respectively.
+ * Returns NULL if @callback can't find any appropriate DIE.
+ */
+Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
+ int (*callback)(Dwarf_Die *, void *),
+ void *data, Dwarf_Die *die_mem)
+{
+ Dwarf_Die child_die;
+ int ret;
+
+ ret = dwarf_child(rt_die, die_mem);
+ if (ret != 0)
+ return NULL;
+
+ do {
+ ret = callback(die_mem, data);
+ if (ret == DIE_FIND_CB_END)
+ return die_mem;
+
+ if ((ret & DIE_FIND_CB_CHILD) &&
+ die_find_child(die_mem, callback, data, &child_die)) {
+ memcpy(die_mem, &child_die, sizeof(Dwarf_Die));
+ return die_mem;
+ }
+ } while ((ret & DIE_FIND_CB_SIBLING) &&
+ dwarf_siblingof(die_mem, die_mem) == 0);
+
+ return NULL;
+}
+
+struct __addr_die_search_param {
+ Dwarf_Addr addr;
+ Dwarf_Die *die_mem;
+};
+
+/* die_find callback for non-inlined function search */
+static int __die_search_func_cb(Dwarf_Die *fn_die, void *data)
+{
+ struct __addr_die_search_param *ad = data;
+
+ if (dwarf_tag(fn_die) == DW_TAG_subprogram &&
+ dwarf_haspc(fn_die, ad->addr)) {
+ memcpy(ad->die_mem, fn_die, sizeof(Dwarf_Die));
+ return DWARF_CB_ABORT;
+ }
+ return DWARF_CB_OK;
+}
+
+/**
+ * die_find_realfunc - Search a non-inlined function at given address
+ * @cu_die: a CU DIE which including @addr
+ * @addr: target address
+ * @die_mem: a buffer for result DIE
+ *
+ * Search a non-inlined function DIE which includes @addr. Stores the
+ * DIE to @die_mem and returns it if found. Returns NULl if failed.
+ */
+Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
+ Dwarf_Die *die_mem)
+{
+ struct __addr_die_search_param ad;
+ ad.addr = addr;
+ ad.die_mem = die_mem;
+ /* dwarf_getscopes can't find subprogram. */
+ if (!dwarf_getfuncs(cu_die, __die_search_func_cb, &ad, 0))
+ return NULL;
+ else
+ return die_mem;
+}
+
+/* die_find callback for inline function search */
+static int __die_find_inline_cb(Dwarf_Die *die_mem, void *data)
+{
+ Dwarf_Addr *addr = data;
+
+ if (dwarf_tag(die_mem) == DW_TAG_inlined_subroutine &&
+ dwarf_haspc(die_mem, *addr))
+ return DIE_FIND_CB_END;
+
+ return DIE_FIND_CB_CONTINUE;
+}
+
+/**
+ * die_find_inlinefunc - Search an inlined function at given address
+ * @cu_die: a CU DIE which including @addr
+ * @addr: target address
+ * @die_mem: a buffer for result DIE
+ *
+ * Search an inlined function DIE which includes @addr. Stores the
+ * DIE to @die_mem and returns it if found. Returns NULl if failed.
+ * If several inlined functions are expanded recursively, this trace
+ * it and returns deepest one.
+ */
+Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
+ Dwarf_Die *die_mem)
+{
+ Dwarf_Die tmp_die;
+
+ sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr, &tmp_die);
+ if (!sp_die)
+ return NULL;
+
+ /* Inlined function could be recursive. Trace it until fail */
+ while (sp_die) {
+ memcpy(die_mem, sp_die, sizeof(Dwarf_Die));
+ sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr,
+ &tmp_die);
+ }
+
+ return die_mem;
+}
+
+/* Line walker internal parameters */
+struct __line_walk_param {
+ const char *fname;
+ line_walk_callback_t callback;
+ void *data;
+ int retval;
+};
+
+static int __die_walk_funclines_cb(Dwarf_Die *in_die, void *data)
+{
+ struct __line_walk_param *lw = data;
+ Dwarf_Addr addr;
+ int lineno;
+
+ if (dwarf_tag(in_die) == DW_TAG_inlined_subroutine) {
+ lineno = die_get_call_lineno(in_die);
+ if (lineno > 0 && dwarf_entrypc(in_die, &addr) == 0) {
+ lw->retval = lw->callback(lw->fname, lineno, addr,
+ lw->data);
+ if (lw->retval != 0)
+ return DIE_FIND_CB_END;
+ }
+ }
+ return DIE_FIND_CB_SIBLING;
+}
+
+/* Walk on lines of blocks included in given DIE */
+static int __die_walk_funclines(Dwarf_Die *sp_die,
+ line_walk_callback_t callback, void *data)
+{
+ struct __line_walk_param lw = {
+ .callback = callback,
+ .data = data,
+ .retval = 0,
+ };
+ Dwarf_Die die_mem;
+ Dwarf_Addr addr;
+ int lineno;
+
+ /* Handle function declaration line */
+ lw.fname = dwarf_decl_file(sp_die);
+ if (lw.fname && dwarf_decl_line(sp_die, &lineno) == 0 &&
+ dwarf_entrypc(sp_die, &addr) == 0) {
+ lw.retval = callback(lw.fname, lineno, addr, data);
+ if (lw.retval != 0)
+ goto done;
+ }
+ die_find_child(sp_die, __die_walk_funclines_cb, &lw, &die_mem);
+done:
+ return lw.retval;
+}
+
+static int __die_walk_culines_cb(Dwarf_Die *sp_die, void *data)
+{
+ struct __line_walk_param *lw = data;
+
+ lw->retval = __die_walk_funclines(sp_die, lw->callback, lw->data);
+ if (lw->retval != 0)
+ return DWARF_CB_ABORT;
+
+ return DWARF_CB_OK;
+}
+
+/**
+ * die_walk_lines - Walk on lines inside given DIE
+ * @rt_die: a root DIE (CU or subprogram)
+ * @callback: callback routine
+ * @data: user data
+ *
+ * Walk on all lines inside given @rt_die and call @callback on each line.
+ * If the @rt_die is a function, walk only on the lines inside the function,
+ * otherwise @rt_die must be a CU DIE.
+ * Note that this walks not only dwarf line list, but also function entries
+ * and inline call-site.
+ */
+int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback, void *data)
+{
+ Dwarf_Lines *lines;
+ Dwarf_Line *line;
+ Dwarf_Addr addr;
+ const char *fname;
+ int lineno, ret = 0;
+ Dwarf_Die die_mem, *cu_die;
+ size_t nlines, i;
+
+ /* Get the CU die */
+ if (dwarf_tag(rt_die) == DW_TAG_subprogram)
+ cu_die = dwarf_diecu(rt_die, &die_mem, NULL, NULL);
+ else
+ cu_die = rt_die;
+ if (!cu_die) {
+ pr_debug2("Failed to get CU from subprogram\n");
+ return -EINVAL;
+ }
+
+ /* Get lines list in the CU */
+ if (dwarf_getsrclines(cu_die, &lines, &nlines) != 0) {
+ pr_debug2("Failed to get source lines on this CU.\n");
+ return -ENOENT;
+ }
+ pr_debug2("Get %zd lines from this CU\n", nlines);
+
+ /* Walk on the lines on lines list */
+ for (i = 0; i < nlines; i++) {
+ line = dwarf_onesrcline(lines, i);
+ if (line == NULL ||
+ dwarf_lineno(line, &lineno) != 0 ||
+ dwarf_lineaddr(line, &addr) != 0) {
+ pr_debug2("Failed to get line info. "
+ "Possible error in debuginfo.\n");
+ continue;
+ }
+ /* Filter lines based on address */
+ if (rt_die != cu_die)
+ /*
+ * Address filtering
+ * The line is included in given function, and
+ * no inline block includes it.
+ */
+ if (!dwarf_haspc(rt_die, addr) ||
+ die_find_inlinefunc(rt_die, addr, &die_mem))
+ continue;
+ /* Get source line */
+ fname = dwarf_linesrc(line, NULL, NULL);
+
+ ret = callback(fname, lineno, addr, data);
+ if (ret != 0)
+ return ret;
+ }
+
+ /*
+ * Dwarf lines doesn't include function declarations and inlined
+ * subroutines. We have to check functions list or given function.
+ */
+ if (rt_die != cu_die)
+ ret = __die_walk_funclines(rt_die, callback, data);
+ else {
+ struct __line_walk_param param = {
+ .callback = callback,
+ .data = data,
+ .retval = 0,
+ };
+ dwarf_getfuncs(cu_die, __die_walk_culines_cb, &param, 0);
+ ret = param.retval;
+ }
+
+ return ret;
+}
+
+struct __find_variable_param {
+ const char *name;
+ Dwarf_Addr addr;
+};
+
+static int __die_find_variable_cb(Dwarf_Die *die_mem, void *data)
+{
+ struct __find_variable_param *fvp = data;
+ int tag;
+
+ tag = dwarf_tag(die_mem);
+ if ((tag == DW_TAG_formal_parameter ||
+ tag == DW_TAG_variable) &&
+ die_compare_name(die_mem, fvp->name))
+ return DIE_FIND_CB_END;
+
+ if (dwarf_haspc(die_mem, fvp->addr))
+ return DIE_FIND_CB_CONTINUE;
+ else
+ return DIE_FIND_CB_SIBLING;
+}
+
+/**
+ * die_find_variable_at - Find a given name variable at given address
+ * @sp_die: a function DIE
+ * @name: variable name
+ * @addr: address
+ * @die_mem: a buffer for result DIE
+ *
+ * Find a variable DIE called @name at @addr in @sp_die.
+ */
+Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
+ Dwarf_Addr addr, Dwarf_Die *die_mem)
+{
+ struct __find_variable_param fvp = { .name = name, .addr = addr};
+
+ return die_find_child(sp_die, __die_find_variable_cb, (void *)&fvp,
+ die_mem);
+}
+
+static int __die_find_member_cb(Dwarf_Die *die_mem, void *data)
+{
+ const char *name = data;
+
+ if ((dwarf_tag(die_mem) == DW_TAG_member) &&
+ die_compare_name(die_mem, name))
+ return DIE_FIND_CB_END;
+
+ return DIE_FIND_CB_SIBLING;
+}
+
+/**
+ * die_find_member - Find a given name member in a data structure
+ * @st_die: a data structure type DIE
+ * @name: member name
+ * @die_mem: a buffer for result DIE
+ *
+ * Find a member DIE called @name in @st_die.
+ */
+Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
+ Dwarf_Die *die_mem)
+{
+ return die_find_child(st_die, __die_find_member_cb, (void *)name,
+ die_mem);
+}
+
+/**
+ * die_get_typename - Get the name of given variable DIE
+ * @vr_die: a variable DIE
+ * @buf: a buffer for result type name
+ * @len: a max-length of @buf
+ *
+ * Get the name of @vr_die and stores it to @buf. Return the actual length
+ * of type name if succeeded. Return -E2BIG if @len is not enough long, and
+ * Return -ENOENT if failed to find type name.
+ * Note that the result will stores typedef name if possible, and stores
+ * "*(function_type)" if the type is a function pointer.
+ */
+int die_get_typename(Dwarf_Die *vr_die, char *buf, int len)
+{
+ Dwarf_Die type;
+ int tag, ret, ret2;
+ const char *tmp = "";
+
+ if (__die_get_real_type(vr_die, &type) == NULL)
+ return -ENOENT;
+
+ tag = dwarf_tag(&type);
+ if (tag == DW_TAG_array_type || tag == DW_TAG_pointer_type)
+ tmp = "*";
+ else if (tag == DW_TAG_subroutine_type) {
+ /* Function pointer */
+ ret = snprintf(buf, len, "(function_type)");
+ return (ret >= len) ? -E2BIG : ret;
+ } else {
+ if (!dwarf_diename(&type))
+ return -ENOENT;
+ if (tag == DW_TAG_union_type)
+ tmp = "union ";
+ else if (tag == DW_TAG_structure_type)
+ tmp = "struct ";
+ /* Write a base name */
+ ret = snprintf(buf, len, "%s%s", tmp, dwarf_diename(&type));
+ return (ret >= len) ? -E2BIG : ret;
+ }
+ ret = die_get_typename(&type, buf, len);
+ if (ret > 0) {
+ ret2 = snprintf(buf + ret, len - ret, "%s", tmp);
+ ret = (ret2 >= len - ret) ? -E2BIG : ret2 + ret;
+ }
+ return ret;
+}
+
+/**
+ * die_get_varname - Get the name and type of given variable DIE
+ * @vr_die: a variable DIE
+ * @buf: a buffer for type and variable name
+ * @len: the max-length of @buf
+ *
+ * Get the name and type of @vr_die and stores it in @buf as "type\tname".
+ */
+int die_get_varname(Dwarf_Die *vr_die, char *buf, int len)
+{
+ int ret, ret2;
+
+ ret = die_get_typename(vr_die, buf, len);
+ if (ret < 0) {
+ pr_debug("Failed to get type, make it unknown.\n");
+ ret = snprintf(buf, len, "(unknown_type)");
+ }
+ if (ret > 0) {
+ ret2 = snprintf(buf + ret, len - ret, "\t%s",
+ dwarf_diename(vr_die));
+ ret = (ret2 >= len - ret) ? -E2BIG : ret2 + ret;
+ }
+ return ret;
+}
+
diff --git a/tools/perf/util/dwarf-aux.h b/tools/perf/util/dwarf-aux.h
new file mode 100644
index 00000000000..bc3b21167e7
--- /dev/null
+++ b/tools/perf/util/dwarf-aux.h
@@ -0,0 +1,100 @@
+#ifndef _DWARF_AUX_H
+#define _DWARF_AUX_H
+/*
+ * dwarf-aux.h : libdw auxiliary interfaces
+ *
+ * This program is free software; you can redistribute it and/or modify
+ * it under the terms of the GNU General Public License as published by
+ * the Free Software Foundation; either version 2 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+ * GNU General Public License for more details.
+ *
+ * You should have received a copy of the GNU General Public License
+ * along with this program; if not, write to the Free Software
+ * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
+ *
+ */
+
+#include <dwarf.h>
+#include <elfutils/libdw.h>
+#include <elfutils/libdwfl.h>
+#include <elfutils/version.h>
+
+/* Find the realpath of the target file */
+extern const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname);
+
+/* Get DW_AT_comp_dir (should be NULL with older gcc) */
+extern const char *cu_get_comp_dir(Dwarf_Die *cu_die);
+
+/* Get a line number and file name for given address */
+extern int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
+ const char **fname, int *lineno);
+
+/* Compare diename and tname */
+extern bool die_compare_name(Dwarf_Die *dw_die, const char *tname);
+
+/* Get callsite line number of inline-function instance */
+extern int die_get_call_lineno(Dwarf_Die *in_die);
+
+/* Get type die */
+extern Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
+
+/* Get a type die, but skip qualifiers and typedef */
+extern Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem);
+
+/* Check whether the DIE is signed or not */
+extern bool die_is_signed_type(Dwarf_Die *tp_die);
+
+/* Get data_member_location offset */
+extern int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs);
+
+/* Return values for die_find_child() callbacks */
+enum {
+ DIE_FIND_CB_END = 0, /* End of Search */
+ DIE_FIND_CB_CHILD = 1, /* Search only children */
+ DIE_FIND_CB_SIBLING = 2, /* Search only siblings */
+ DIE_FIND_CB_CONTINUE = 3, /* Search children and siblings */
+};
+
+/* Search child DIEs */
+extern Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
+ int (*callback)(Dwarf_Die *, void *),
+ void *data, Dwarf_Die *die_mem);
+
+/* Search a non-inlined function including given address */
+extern Dwarf_Die *die_find_realfunc(Dwarf_Die *cu_die, Dwarf_Addr addr,
+ Dwarf_Die *die_mem);
+
+/* Search an inlined function including given address */
+extern Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
+ Dwarf_Die *die_mem);
+
+/* Walker on lines (Note: line number will not be sorted) */
+typedef int (* line_walk_callback_t) (const char *fname, int lineno,
+ Dwarf_Addr addr, void *data);
+
+/*
+ * Walk on lines inside given DIE. If the DIE is a subprogram, walk only on
+ * the lines inside the subprogram, otherwise the DIE must be a CU DIE.
+ */
+extern int die_walk_lines(Dwarf_Die *rt_die, line_walk_callback_t callback,
+ void *data);
+
+/* Find a variable called 'name' at given address */
+extern Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
+ Dwarf_Addr addr, Dwarf_Die *die_mem);
+
+/* Find a member called 'name' */
+extern Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
+ Dwarf_Die *die_mem);
+
+/* Get the name of given variable DIE */
+extern int die_get_typename(Dwarf_Die *vr_die, char *buf, int len);
+
+/* Get the name and type of given variable DIE, stored as "type\tname" */
+extern int die_get_varname(Dwarf_Die *vr_die, char *buf, int len);
+#endif
diff --git a/tools/perf/util/evsel.c b/tools/perf/util/evsel.c
index 0239eb87b23..a03a36b7908 100644
--- a/tools/perf/util/evsel.c
+++ b/tools/perf/util/evsel.c
@@ -377,6 +377,7 @@ int perf_event__parse_sample(const union perf_event *event, u64 type,
array++;
}
+ data->addr = 0;
if (type & PERF_SAMPLE_ADDR) {
data->addr = *array;
array++;
diff --git a/tools/perf/util/evsel.h b/tools/perf/util/evsel.h
index 7e9366e4490..e9a31554e26 100644
--- a/tools/perf/util/evsel.h
+++ b/tools/perf/util/evsel.h
@@ -61,6 +61,7 @@ struct perf_evsel {
off_t id_offset;
};
struct cgroup_sel *cgrp;
+ bool supported;
};
struct cpu_map;
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index afb0849fe53..cb2959a3fb4 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -877,9 +877,12 @@ int perf_session__read_header(struct perf_session *session, int fd)
struct perf_evsel *evsel;
off_t tmp;
- if (perf_header__getbuffer64(header, fd, &f_attr, sizeof(f_attr)))
+ if (readn(fd, &f_attr, sizeof(f_attr)) <= 0)
goto out_errno;
+ if (header->needs_swap)
+ perf_event__attr_swap(&f_attr.attr);
+
tmp = lseek(fd, 0, SEEK_CUR);
evsel = perf_evsel__new(&f_attr.attr, i);
diff --git a/tools/perf/util/hist.c b/tools/perf/util/hist.c
index 627a02e03c5..677e1da6bb3 100644
--- a/tools/perf/util/hist.c
+++ b/tools/perf/util/hist.c
@@ -14,7 +14,8 @@ enum hist_filter {
struct callchain_param callchain_param = {
.mode = CHAIN_GRAPH_REL,
- .min_percent = 0.5
+ .min_percent = 0.5,
+ .order = ORDER_CALLEE
};
u16 hists__col_len(struct hists *self, enum hist_column col)
@@ -846,6 +847,9 @@ print_entries:
for (nd = rb_first(&self->entries); nd; nd = rb_next(nd)) {
struct hist_entry *h = rb_entry(nd, struct hist_entry, rb_node);
+ if (h->filtered)
+ continue;
+
if (show_displacement) {
if (h->pair != NULL)
displacement = ((long)h->pair->position -
diff --git a/tools/perf/util/parse-events.c b/tools/perf/util/parse-events.c
index 41982c373fa..4ea7e19f525 100644
--- a/tools/perf/util/parse-events.c
+++ b/tools/perf/util/parse-events.c
@@ -86,22 +86,24 @@ static const char *sw_event_names[PERF_COUNT_SW_MAX] = {
#define MAX_ALIASES 8
-static const char *hw_cache[][MAX_ALIASES] = {
+static const char *hw_cache[PERF_COUNT_HW_CACHE_MAX][MAX_ALIASES] = {
{ "L1-dcache", "l1-d", "l1d", "L1-data", },
{ "L1-icache", "l1-i", "l1i", "L1-instruction", },
- { "LLC", "L2" },
+ { "LLC", "L2", },
{ "dTLB", "d-tlb", "Data-TLB", },
{ "iTLB", "i-tlb", "Instruction-TLB", },
{ "branch", "branches", "bpu", "btb", "bpc", },
+ { "node", },
};
-static const char *hw_cache_op[][MAX_ALIASES] = {
+static const char *hw_cache_op[PERF_COUNT_HW_CACHE_OP_MAX][MAX_ALIASES] = {
{ "load", "loads", "read", },
{ "store", "stores", "write", },
{ "prefetch", "prefetches", "speculative-read", "speculative-load", },
};
-static const char *hw_cache_result[][MAX_ALIASES] = {
+static const char *hw_cache_result[PERF_COUNT_HW_CACHE_RESULT_MAX]
+ [MAX_ALIASES] = {
{ "refs", "Reference", "ops", "access", },
{ "misses", "miss", },
};
@@ -124,6 +126,7 @@ static unsigned long hw_cache_stat[C(MAX)] = {
[C(DTLB)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
[C(ITLB)] = (CACHE_READ),
[C(BPU)] = (CACHE_READ),
+ [C(NODE)] = (CACHE_READ | CACHE_WRITE | CACHE_PREFETCH),
};
#define for_each_subsystem(sys_dir, sys_dirent, sys_next) \
@@ -393,7 +396,7 @@ parse_generic_hw_event(const char **str, struct perf_event_attr *attr)
PERF_COUNT_HW_CACHE_OP_MAX);
if (cache_op >= 0) {
if (!is_cache_op_valid(cache_type, cache_op))
- return 0;
+ return EVT_FAILED;
continue;
}
}
@@ -475,7 +478,7 @@ parse_single_tracepoint_event(char *sys_name,
/* sys + ':' + event + ':' + flags*/
#define MAX_EVOPT_LEN (MAX_EVENT_LENGTH * 2 + 2 + 128)
static enum event_result
-parse_multiple_tracepoint_event(const struct option *opt, char *sys_name,
+parse_multiple_tracepoint_event(struct perf_evlist *evlist, char *sys_name,
const char *evt_exp, char *flags)
{
char evt_path[MAXPATHLEN];
@@ -509,7 +512,7 @@ parse_multiple_tracepoint_event(const struct option *opt, char *sys_name,
if (len < 0)
return EVT_FAILED;
- if (parse_events(opt, event_opt, 0))
+ if (parse_events(evlist, event_opt, 0))
return EVT_FAILED;
}
@@ -517,7 +520,7 @@ parse_multiple_tracepoint_event(const struct option *opt, char *sys_name,
}
static enum event_result
-parse_tracepoint_event(const struct option *opt, const char **strp,
+parse_tracepoint_event(struct perf_evlist *evlist, const char **strp,
struct perf_event_attr *attr)
{
const char *evt_name;
@@ -557,8 +560,8 @@ parse_tracepoint_event(const struct option *opt, const char **strp,
return EVT_FAILED;
if (strpbrk(evt_name, "*?")) {
*strp += strlen(sys_name) + evt_length + 1; /* 1 == the ':' */
- return parse_multiple_tracepoint_event(opt, sys_name, evt_name,
- flags);
+ return parse_multiple_tracepoint_event(evlist, sys_name,
+ evt_name, flags);
} else {
return parse_single_tracepoint_event(sys_name, evt_name,
evt_length, attr, strp);
@@ -778,12 +781,12 @@ parse_event_modifier(const char **strp, struct perf_event_attr *attr)
* Symbolic names are (almost) exactly matched.
*/
static enum event_result
-parse_event_symbols(const struct option *opt, const char **str,
+parse_event_symbols(struct perf_evlist *evlist, const char **str,
struct perf_event_attr *attr)
{
enum event_result ret;
- ret = parse_tracepoint_event(opt, str, attr);
+ ret = parse_tracepoint_event(evlist, str, attr);
if (ret != EVT_FAILED)
goto modifier;
@@ -822,9 +825,8 @@ modifier:
return ret;
}
-int parse_events(const struct option *opt, const char *str, int unset __used)
+int parse_events(struct perf_evlist *evlist , const char *str, int unset __used)
{
- struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
struct perf_event_attr attr;
enum event_result ret;
const char *ostr;
@@ -832,7 +834,7 @@ int parse_events(const struct option *opt, const char *str, int unset __used)
for (;;) {
ostr = str;
memset(&attr, 0, sizeof(attr));
- ret = parse_event_symbols(opt, &str, &attr);
+ ret = parse_event_symbols(evlist, &str, &attr);
if (ret == EVT_FAILED)
return -1;
@@ -863,6 +865,13 @@ int parse_events(const struct option *opt, const char *str, int unset __used)
return 0;
}
+int parse_events_option(const struct option *opt, const char *str,
+ int unset __used)
+{
+ struct perf_evlist *evlist = *(struct perf_evlist **)opt->value;
+ return parse_events(evlist, str, unset);
+}
+
int parse_filter(const struct option *opt, const char *str,
int unset __used)
{
diff --git a/tools/perf/util/parse-events.h b/tools/perf/util/parse-events.h
index 746d3fcbfc2..2f8e375e038 100644
--- a/tools/perf/util/parse-events.h
+++ b/tools/perf/util/parse-events.h
@@ -8,6 +8,7 @@
struct list_head;
struct perf_evsel;
+struct perf_evlist;
struct option;
@@ -24,7 +25,10 @@ const char *event_type(int type);
const char *event_name(struct perf_evsel *event);
extern const char *__event_name(int type, u64 config);
-extern int parse_events(const struct option *opt, const char *str, int unset);
+extern int parse_events_option(const struct option *opt, const char *str,
+ int unset);
+extern int parse_events(struct perf_evlist *evlist, const char *str,
+ int unset);
extern int parse_filter(const struct option *opt, const char *str, int unset);
#define EVENTS_HELP_MAX (128*1024)
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index f0223166e76..b82d54fa2c5 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -117,6 +117,10 @@ static struct map *kernel_get_module_map(const char *module)
struct rb_node *nd;
struct map_groups *grp = &machine.kmaps;
+ /* A file path -- this is an offline module */
+ if (module && strchr(module, '/'))
+ return machine__new_module(&machine, 0, module);
+
if (!module)
module = "kernel";
@@ -170,16 +174,24 @@ const char *kernel_get_module_path(const char *module)
}
#ifdef DWARF_SUPPORT
-static int open_vmlinux(const char *module)
+/* Open new debuginfo of given module */
+static struct debuginfo *open_debuginfo(const char *module)
{
- const char *path = kernel_get_module_path(module);
- if (!path) {
- pr_err("Failed to find path of %s module.\n",
- module ?: "kernel");
- return -ENOENT;
+ const char *path;
+
+ /* A file path -- this is an offline module */
+ if (module && strchr(module, '/'))
+ path = module;
+ else {
+ path = kernel_get_module_path(module);
+
+ if (!path) {
+ pr_err("Failed to find path of %s module.\n",
+ module ?: "kernel");
+ return NULL;
+ }
}
- pr_debug("Try to open %s\n", path);
- return open(path, O_RDONLY);
+ return debuginfo__new(path);
}
/*
@@ -193,13 +205,24 @@ static int kprobe_convert_to_perf_probe(struct probe_trace_point *tp,
struct map *map;
u64 addr;
int ret = -ENOENT;
+ struct debuginfo *dinfo;
sym = __find_kernel_function_by_name(tp->symbol, &map);
if (sym) {
addr = map->unmap_ip(map, sym->start + tp->offset);
pr_debug("try to find %s+%ld@%" PRIx64 "\n", tp->symbol,
tp->offset, addr);
- ret = find_perf_probe_point((unsigned long)addr, pp);
+
+ dinfo = debuginfo__new_online_kernel(addr);
+ if (dinfo) {
+ ret = debuginfo__find_probe_point(dinfo,
+ (unsigned long)addr, pp);
+ debuginfo__delete(dinfo);
+ } else {
+ pr_debug("Failed to open debuginfo at 0x%" PRIx64 "\n",
+ addr);
+ ret = -ENOENT;
+ }
}
if (ret <= 0) {
pr_debug("Failed to find corresponding probes from "
@@ -214,30 +237,70 @@ static int kprobe_convert_to_perf_probe(struct probe_trace_point *tp,
return 0;
}
+static int add_module_to_probe_trace_events(struct probe_trace_event *tevs,
+ int ntevs, const char *module)
+{
+ int i, ret = 0;
+ char *tmp;
+
+ if (!module)
+ return 0;
+
+ tmp = strrchr(module, '/');
+ if (tmp) {
+ /* This is a module path -- get the module name */
+ module = strdup(tmp + 1);
+ if (!module)
+ return -ENOMEM;
+ tmp = strchr(module, '.');
+ if (tmp)
+ *tmp = '\0';
+ tmp = (char *)module; /* For free() */
+ }
+
+ for (i = 0; i < ntevs; i++) {
+ tevs[i].point.module = strdup(module);
+ if (!tevs[i].point.module) {
+ ret = -ENOMEM;
+ break;
+ }
+ }
+
+ if (tmp)
+ free(tmp);
+
+ return ret;
+}
+
/* Try to find perf_probe_event with debuginfo */
static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
- struct probe_trace_event **tevs,
- int max_tevs, const char *module)
+ struct probe_trace_event **tevs,
+ int max_tevs, const char *module)
{
bool need_dwarf = perf_probe_event_need_dwarf(pev);
- int fd, ntevs;
+ struct debuginfo *dinfo = open_debuginfo(module);
+ int ntevs, ret = 0;
- fd = open_vmlinux(module);
- if (fd < 0) {
+ if (!dinfo) {
if (need_dwarf) {
pr_warning("Failed to open debuginfo file.\n");
- return fd;
+ return -ENOENT;
}
- pr_debug("Could not open vmlinux. Try to use symbols.\n");
+ pr_debug("Could not open debuginfo. Try to use symbols.\n");
return 0;
}
- /* Searching trace events corresponding to probe event */
- ntevs = find_probe_trace_events(fd, pev, tevs, max_tevs);
+ /* Searching trace events corresponding to a probe event */
+ ntevs = debuginfo__find_trace_events(dinfo, pev, tevs, max_tevs);
+
+ debuginfo__delete(dinfo);
if (ntevs > 0) { /* Succeeded to find trace events */
pr_debug("find %d probe_trace_events.\n", ntevs);
- return ntevs;
+ if (module)
+ ret = add_module_to_probe_trace_events(*tevs, ntevs,
+ module);
+ return ret < 0 ? ret : ntevs;
}
if (ntevs == 0) { /* No error but failed to find probe point. */
@@ -371,8 +434,9 @@ int show_line_range(struct line_range *lr, const char *module)
{
int l = 1;
struct line_node *ln;
+ struct debuginfo *dinfo;
FILE *fp;
- int fd, ret;
+ int ret;
char *tmp;
/* Search a line range */
@@ -380,13 +444,14 @@ int show_line_range(struct line_range *lr, const char *module)
if (ret < 0)
return ret;
- fd = open_vmlinux(module);
- if (fd < 0) {
+ dinfo = open_debuginfo(module);
+ if (!dinfo) {
pr_warning("Failed to open debuginfo file.\n");
- return fd;
+ return -ENOENT;
}
- ret = find_line_range(fd, lr);
+ ret = debuginfo__find_line_range(dinfo, lr);
+ debuginfo__delete(dinfo);
if (ret == 0) {
pr_warning("Specified source line is not found.\n");
return -ENOENT;
@@ -448,7 +513,8 @@ end:
return ret;
}
-static int show_available_vars_at(int fd, struct perf_probe_event *pev,
+static int show_available_vars_at(struct debuginfo *dinfo,
+ struct perf_probe_event *pev,
int max_vls, struct strfilter *_filter,
bool externs)
{
@@ -463,7 +529,8 @@ static int show_available_vars_at(int fd, struct perf_probe_event *pev,
return -EINVAL;
pr_debug("Searching variables at %s\n", buf);
- ret = find_available_vars_at(fd, pev, &vls, max_vls, externs);
+ ret = debuginfo__find_available_vars_at(dinfo, pev, &vls,
+ max_vls, externs);
if (ret <= 0) {
pr_err("Failed to find variables at %s (%d)\n", buf, ret);
goto end;
@@ -504,24 +571,26 @@ int show_available_vars(struct perf_probe_event *pevs, int npevs,
int max_vls, const char *module,
struct strfilter *_filter, bool externs)
{
- int i, fd, ret = 0;
+ int i, ret = 0;
+ struct debuginfo *dinfo;
ret = init_vmlinux();
if (ret < 0)
return ret;
+ dinfo = open_debuginfo(module);
+ if (!dinfo) {
+ pr_warning("Failed to open debuginfo file.\n");
+ return -ENOENT;
+ }
+
setup_pager();
- for (i = 0; i < npevs && ret >= 0; i++) {
- fd = open_vmlinux(module);
- if (fd < 0) {
- pr_warning("Failed to open debug information file.\n");
- ret = fd;
- break;
- }
- ret = show_available_vars_at(fd, &pevs[i], max_vls, _filter,
+ for (i = 0; i < npevs && ret >= 0; i++)
+ ret = show_available_vars_at(dinfo, &pevs[i], max_vls, _filter,
externs);
- }
+
+ debuginfo__delete(dinfo);
return ret;
}
@@ -990,7 +1059,7 @@ bool perf_probe_event_need_dwarf(struct perf_probe_event *pev)
/* Parse probe_events event into struct probe_point */
static int parse_probe_trace_command(const char *cmd,
- struct probe_trace_event *tev)
+ struct probe_trace_event *tev)
{
struct probe_trace_point *tp = &tev->point;
char pr;
@@ -1023,8 +1092,14 @@ static int parse_probe_trace_command(const char *cmd,
tp->retprobe = (pr == 'r');
- /* Scan function name and offset */
- ret = sscanf(argv[1], "%a[^+]+%lu", (float *)(void *)&tp->symbol,
+ /* Scan module name(if there), function name and offset */
+ p = strchr(argv[1], ':');
+ if (p) {
+ tp->module = strndup(argv[1], p - argv[1]);
+ p++;
+ } else
+ p = argv[1];
+ ret = sscanf(p, "%a[^+]+%lu", (float *)(void *)&tp->symbol,
&tp->offset);
if (ret == 1)
tp->offset = 0;
@@ -1269,9 +1344,10 @@ char *synthesize_probe_trace_command(struct probe_trace_event *tev)
if (buf == NULL)
return NULL;
- len = e_snprintf(buf, MAX_CMDLEN, "%c:%s/%s %s+%lu",
+ len = e_snprintf(buf, MAX_CMDLEN, "%c:%s/%s %s%s%s+%lu",
tp->retprobe ? 'r' : 'p',
tev->group, tev->event,
+ tp->module ?: "", tp->module ? ":" : "",
tp->symbol, tp->offset);
if (len <= 0)
goto error;
@@ -1378,6 +1454,8 @@ static void clear_probe_trace_event(struct probe_trace_event *tev)
free(tev->group);
if (tev->point.symbol)
free(tev->point.symbol);
+ if (tev->point.module)
+ free(tev->point.module);
for (i = 0; i < tev->nargs; i++) {
if (tev->args[i].name)
free(tev->args[i].name);
@@ -1729,7 +1807,7 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
/* Convert perf_probe_event with debuginfo */
ret = try_to_find_probe_trace_events(pev, tevs, max_tevs, module);
if (ret != 0)
- return ret;
+ return ret; /* Found in debuginfo or got an error */
/* Allocate trace event buffer */
tev = *tevs = zalloc(sizeof(struct probe_trace_event));
@@ -1742,6 +1820,11 @@ static int convert_to_probe_trace_events(struct perf_probe_event *pev,
ret = -ENOMEM;
goto error;
}
+ tev->point.module = strdup(module);
+ if (tev->point.module == NULL) {
+ ret = -ENOMEM;
+ goto error;
+ }
tev->point.offset = pev->point.offset;
tev->point.retprobe = pev->point.retprobe;
tev->nargs = pev->nargs;
diff --git a/tools/perf/util/probe-event.h b/tools/perf/util/probe-event.h
index 3434fc9d79d..a7dee835f49 100644
--- a/tools/perf/util/probe-event.h
+++ b/tools/perf/util/probe-event.h
@@ -10,6 +10,7 @@ extern bool probe_event_dry_run;
/* kprobe-tracer tracing point */
struct probe_trace_point {
char *symbol; /* Base symbol */
+ char *module; /* Module name */
unsigned long offset; /* Offset from symbol */
bool retprobe; /* Return probe flag */
};
diff --git a/tools/perf/util/probe-finder.c b/tools/perf/util/probe-finder.c
index 3b9d0b800d5..3e44a3e3651 100644
--- a/tools/perf/util/probe-finder.c
+++ b/tools/perf/util/probe-finder.c
@@ -43,21 +43,6 @@
/* Kprobe tracer basic type is up to u64 */
#define MAX_BASIC_TYPE_BITS 64
-/*
- * Compare the tail of two strings.
- * Return 0 if whole of either string is same as another's tail part.
- */
-static int strtailcmp(const char *s1, const char *s2)
-{
- int i1 = strlen(s1);
- int i2 = strlen(s2);
- while (--i1 >= 0 && --i2 >= 0) {
- if (s1[i1] != s2[i2])
- return s1[i1] - s2[i2];
- }
- return 0;
-}
-
/* Line number list operations */
/* Add a line to line number list */
@@ -131,29 +116,37 @@ static const Dwfl_Callbacks offline_callbacks = {
};
/* Get a Dwarf from offline image */
-static Dwarf *dwfl_init_offline_dwarf(int fd, Dwfl **dwflp, Dwarf_Addr *bias)
+static int debuginfo__init_offline_dwarf(struct debuginfo *self,
+ const char *path)
{
Dwfl_Module *mod;
- Dwarf *dbg = NULL;
+ int fd;
- if (!dwflp)
- return NULL;
+ fd = open(path, O_RDONLY);
+ if (fd < 0)
+ return fd;
- *dwflp = dwfl_begin(&offline_callbacks);
- if (!*dwflp)
- return NULL;
+ self->dwfl = dwfl_begin(&offline_callbacks);
+ if (!self->dwfl)
+ goto error;
- mod = dwfl_report_offline(*dwflp, "", "", fd);
+ mod = dwfl_report_offline(self->dwfl, "", "", fd);
if (!mod)
goto error;
- dbg = dwfl_module_getdwarf(mod, bias);
- if (!dbg) {
+ self->dbg = dwfl_module_getdwarf(mod, &self->bias);
+ if (!self->dbg)
+ goto error;
+
+ return 0;
error:
- dwfl_end(*dwflp);
- *dwflp = NULL;
- }
- return dbg;
+ if (self->dwfl)
+ dwfl_end(self->dwfl);
+ else
+ close(fd);
+ memset(self, 0, sizeof(*self));
+
+ return -ENOENT;
}
#if _ELFUTILS_PREREQ(0, 148)
@@ -189,597 +182,81 @@ static const Dwfl_Callbacks kernel_callbacks = {
};
/* Get a Dwarf from live kernel image */
-static Dwarf *dwfl_init_live_kernel_dwarf(Dwarf_Addr addr, Dwfl **dwflp,
- Dwarf_Addr *bias)
+static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
+ Dwarf_Addr addr)
{
- Dwarf *dbg;
-
- if (!dwflp)
- return NULL;
-
- *dwflp = dwfl_begin(&kernel_callbacks);
- if (!*dwflp)
- return NULL;
+ self->dwfl = dwfl_begin(&kernel_callbacks);
+ if (!self->dwfl)
+ return -EINVAL;
/* Load the kernel dwarves: Don't care the result here */
- dwfl_linux_kernel_report_kernel(*dwflp);
- dwfl_linux_kernel_report_modules(*dwflp);
+ dwfl_linux_kernel_report_kernel(self->dwfl);
+ dwfl_linux_kernel_report_modules(self->dwfl);
- dbg = dwfl_addrdwarf(*dwflp, addr, bias);
+ self->dbg = dwfl_addrdwarf(self->dwfl, addr, &self->bias);
/* Here, check whether we could get a real dwarf */
- if (!dbg) {
+ if (!self->dbg) {
pr_debug("Failed to find kernel dwarf at %lx\n",
(unsigned long)addr);
- dwfl_end(*dwflp);
- *dwflp = NULL;
+ dwfl_end(self->dwfl);
+ memset(self, 0, sizeof(*self));
+ return -ENOENT;
}
- return dbg;
+
+ return 0;
}
#else
/* With older elfutils, this just support kernel module... */
-static Dwarf *dwfl_init_live_kernel_dwarf(Dwarf_Addr addr __used, Dwfl **dwflp,
- Dwarf_Addr *bias)
+static int debuginfo__init_online_kernel_dwarf(struct debuginfo *self,
+ Dwarf_Addr addr __used)
{
- int fd;
const char *path = kernel_get_module_path("kernel");
if (!path) {
pr_err("Failed to find vmlinux path\n");
- return NULL;
+ return -ENOENT;
}
pr_debug2("Use file %s for debuginfo\n", path);
- fd = open(path, O_RDONLY);
- if (fd < 0)
- return NULL;
-
- return dwfl_init_offline_dwarf(fd, dwflp, bias);
+ return debuginfo__init_offline_dwarf(self, path);
}
#endif
-/* Dwarf wrappers */
-
-/* Find the realpath of the target file. */
-static const char *cu_find_realpath(Dwarf_Die *cu_die, const char *fname)
-{
- Dwarf_Files *files;
- size_t nfiles, i;
- const char *src = NULL;
- int ret;
-
- if (!fname)
- return NULL;
-
- ret = dwarf_getsrcfiles(cu_die, &files, &nfiles);
- if (ret != 0)
- return NULL;
-
- for (i = 0; i < nfiles; i++) {
- src = dwarf_filesrc(files, i, NULL, NULL);
- if (strtailcmp(src, fname) == 0)
- break;
- }
- if (i == nfiles)
- return NULL;
- return src;
-}
-
-/* Get DW_AT_comp_dir (should be NULL with older gcc) */
-static const char *cu_get_comp_dir(Dwarf_Die *cu_die)
-{
- Dwarf_Attribute attr;
- if (dwarf_attr(cu_die, DW_AT_comp_dir, &attr) == NULL)
- return NULL;
- return dwarf_formstring(&attr);
-}
-
-/* Get a line number and file name for given address */
-static int cu_find_lineinfo(Dwarf_Die *cudie, unsigned long addr,
- const char **fname, int *lineno)
-{
- Dwarf_Line *line;
- Dwarf_Addr laddr;
-
- line = dwarf_getsrc_die(cudie, (Dwarf_Addr)addr);
- if (line && dwarf_lineaddr(line, &laddr) == 0 &&
- addr == (unsigned long)laddr && dwarf_lineno(line, lineno) == 0) {
- *fname = dwarf_linesrc(line, NULL, NULL);
- if (!*fname)
- /* line number is useless without filename */
- *lineno = 0;
- }
-
- return *lineno ?: -ENOENT;
-}
-
-/* Compare diename and tname */
-static bool die_compare_name(Dwarf_Die *dw_die, const char *tname)
-{
- const char *name;
- name = dwarf_diename(dw_die);
- return name ? (strcmp(tname, name) == 0) : false;
-}
-
-/* Get callsite line number of inline-function instance */
-static int die_get_call_lineno(Dwarf_Die *in_die)
-{
- Dwarf_Attribute attr;
- Dwarf_Word ret;
-
- if (!dwarf_attr(in_die, DW_AT_call_line, &attr))
- return -ENOENT;
-
- dwarf_formudata(&attr, &ret);
- return (int)ret;
-}
-
-/* Get type die */
-static Dwarf_Die *die_get_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
-{
- Dwarf_Attribute attr;
-
- if (dwarf_attr_integrate(vr_die, DW_AT_type, &attr) &&
- dwarf_formref_die(&attr, die_mem))
- return die_mem;
- else
- return NULL;
-}
-
-/* Get a type die, but skip qualifiers */
-static Dwarf_Die *__die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
-{
- int tag;
-
- do {
- vr_die = die_get_type(vr_die, die_mem);
- if (!vr_die)
- break;
- tag = dwarf_tag(vr_die);
- } while (tag == DW_TAG_const_type ||
- tag == DW_TAG_restrict_type ||
- tag == DW_TAG_volatile_type ||
- tag == DW_TAG_shared_type);
-
- return vr_die;
-}
-
-/* Get a type die, but skip qualifiers and typedef */
-static Dwarf_Die *die_get_real_type(Dwarf_Die *vr_die, Dwarf_Die *die_mem)
-{
- do {
- vr_die = __die_get_real_type(vr_die, die_mem);
- } while (vr_die && dwarf_tag(vr_die) == DW_TAG_typedef);
-
- return vr_die;
-}
-
-static int die_get_attr_udata(Dwarf_Die *tp_die, unsigned int attr_name,
- Dwarf_Word *result)
-{
- Dwarf_Attribute attr;
-
- if (dwarf_attr(tp_die, attr_name, &attr) == NULL ||
- dwarf_formudata(&attr, result) != 0)
- return -ENOENT;
-
- return 0;
-}
-
-static bool die_is_signed_type(Dwarf_Die *tp_die)
-{
- Dwarf_Word ret;
-
- if (die_get_attr_udata(tp_die, DW_AT_encoding, &ret))
- return false;
-
- return (ret == DW_ATE_signed_char || ret == DW_ATE_signed ||
- ret == DW_ATE_signed_fixed);
-}
-
-static int die_get_byte_size(Dwarf_Die *tp_die)
-{
- Dwarf_Word ret;
-
- if (die_get_attr_udata(tp_die, DW_AT_byte_size, &ret))
- return 0;
-
- return (int)ret;
-}
-
-static int die_get_bit_size(Dwarf_Die *tp_die)
-{
- Dwarf_Word ret;
-
- if (die_get_attr_udata(tp_die, DW_AT_bit_size, &ret))
- return 0;
-
- return (int)ret;
-}
-
-static int die_get_bit_offset(Dwarf_Die *tp_die)
-{
- Dwarf_Word ret;
-
- if (die_get_attr_udata(tp_die, DW_AT_bit_offset, &ret))
- return 0;
-
- return (int)ret;
-}
-
-/* Get data_member_location offset */
-static int die_get_data_member_location(Dwarf_Die *mb_die, Dwarf_Word *offs)
-{
- Dwarf_Attribute attr;
- Dwarf_Op *expr;
- size_t nexpr;
- int ret;
-
- if (dwarf_attr(mb_die, DW_AT_data_member_location, &attr) == NULL)
- return -ENOENT;
-
- if (dwarf_formudata(&attr, offs) != 0) {
- /* DW_AT_data_member_location should be DW_OP_plus_uconst */
- ret = dwarf_getlocation(&attr, &expr, &nexpr);
- if (ret < 0 || nexpr == 0)
- return -ENOENT;
-
- if (expr[0].atom != DW_OP_plus_uconst || nexpr != 1) {
- pr_debug("Unable to get offset:Unexpected OP %x (%zd)\n",
- expr[0].atom, nexpr);
- return -ENOTSUP;
- }
- *offs = (Dwarf_Word)expr[0].number;
- }
- return 0;
-}
-
-/* Return values for die_find callbacks */
-enum {
- DIE_FIND_CB_FOUND = 0, /* End of Search */
- DIE_FIND_CB_CHILD = 1, /* Search only children */
- DIE_FIND_CB_SIBLING = 2, /* Search only siblings */
- DIE_FIND_CB_CONTINUE = 3, /* Search children and siblings */
-};
-
-/* Search a child die */
-static Dwarf_Die *die_find_child(Dwarf_Die *rt_die,
- int (*callback)(Dwarf_Die *, void *),
- void *data, Dwarf_Die *die_mem)
+struct debuginfo *debuginfo__new(const char *path)
{
- Dwarf_Die child_die;
- int ret;
-
- ret = dwarf_child(rt_die, die_mem);
- if (ret != 0)
+ struct debuginfo *self = zalloc(sizeof(struct debuginfo));
+ if (!self)
return NULL;
- do {
- ret = callback(die_mem, data);
- if (ret == DIE_FIND_CB_FOUND)
- return die_mem;
-
- if ((ret & DIE_FIND_CB_CHILD) &&
- die_find_child(die_mem, callback, data, &child_die)) {
- memcpy(die_mem, &child_die, sizeof(Dwarf_Die));
- return die_mem;
- }
- } while ((ret & DIE_FIND_CB_SIBLING) &&
- dwarf_siblingof(die_mem, die_mem) == 0);
-
- return NULL;
-}
-
-struct __addr_die_search_param {
- Dwarf_Addr addr;
- Dwarf_Die *die_mem;
-};
-
-static int __die_search_func_cb(Dwarf_Die *fn_die, void *data)
-{
- struct __addr_die_search_param *ad = data;
-
- if (dwarf_tag(fn_die) == DW_TAG_subprogram &&
- dwarf_haspc(fn_die, ad->addr)) {
- memcpy(ad->die_mem, fn_die, sizeof(Dwarf_Die));
- return DWARF_CB_ABORT;
+ if (debuginfo__init_offline_dwarf(self, path) < 0) {
+ free(self);
+ self = NULL;
}
- return DWARF_CB_OK;
-}
-
-/* Search a real subprogram including this line, */
-static Dwarf_Die *die_find_real_subprogram(Dwarf_Die *cu_die, Dwarf_Addr addr,
- Dwarf_Die *die_mem)
-{
- struct __addr_die_search_param ad;
- ad.addr = addr;
- ad.die_mem = die_mem;
- /* dwarf_getscopes can't find subprogram. */
- if (!dwarf_getfuncs(cu_die, __die_search_func_cb, &ad, 0))
- return NULL;
- else
- return die_mem;
-}
-
-/* die_find callback for inline function search */
-static int __die_find_inline_cb(Dwarf_Die *die_mem, void *data)
-{
- Dwarf_Addr *addr = data;
-
- if (dwarf_tag(die_mem) == DW_TAG_inlined_subroutine &&
- dwarf_haspc(die_mem, *addr))
- return DIE_FIND_CB_FOUND;
- return DIE_FIND_CB_CONTINUE;
+ return self;
}
-/* Similar to dwarf_getfuncs, but returns inlined_subroutine if exists. */
-static Dwarf_Die *die_find_inlinefunc(Dwarf_Die *sp_die, Dwarf_Addr addr,
- Dwarf_Die *die_mem)
+struct debuginfo *debuginfo__new_online_kernel(unsigned long addr)
{
- Dwarf_Die tmp_die;
-
- sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr, &tmp_die);
- if (!sp_die)
+ struct debuginfo *self = zalloc(sizeof(struct debuginfo));
+ if (!self)
return NULL;
- /* Inlined function could be recursive. Trace it until fail */
- while (sp_die) {
- memcpy(die_mem, sp_die, sizeof(Dwarf_Die));
- sp_die = die_find_child(sp_die, __die_find_inline_cb, &addr,
- &tmp_die);
- }
-
- return die_mem;
-}
-
-/* Walker on lines (Note: line number will not be sorted) */
-typedef int (* line_walk_handler_t) (const char *fname, int lineno,
- Dwarf_Addr addr, void *data);
-
-struct __line_walk_param {
- const char *fname;
- line_walk_handler_t handler;
- void *data;
- int retval;
-};
-
-static int __die_walk_funclines_cb(Dwarf_Die *in_die, void *data)
-{
- struct __line_walk_param *lw = data;
- Dwarf_Addr addr;
- int lineno;
-
- if (dwarf_tag(in_die) == DW_TAG_inlined_subroutine) {
- lineno = die_get_call_lineno(in_die);
- if (lineno > 0 && dwarf_entrypc(in_die, &addr) == 0) {
- lw->retval = lw->handler(lw->fname, lineno, addr,
- lw->data);
- if (lw->retval != 0)
- return DIE_FIND_CB_FOUND;
- }
- }
- return DIE_FIND_CB_SIBLING;
-}
-
-/* Walk on lines of blocks included in given DIE */
-static int __die_walk_funclines(Dwarf_Die *sp_die,
- line_walk_handler_t handler, void *data)
-{
- struct __line_walk_param lw = {
- .handler = handler,
- .data = data,
- .retval = 0,
- };
- Dwarf_Die die_mem;
- Dwarf_Addr addr;
- int lineno;
-
- /* Handle function declaration line */
- lw.fname = dwarf_decl_file(sp_die);
- if (lw.fname && dwarf_decl_line(sp_die, &lineno) == 0 &&
- dwarf_entrypc(sp_die, &addr) == 0) {
- lw.retval = handler(lw.fname, lineno, addr, data);
- if (lw.retval != 0)
- goto done;
- }
- die_find_child(sp_die, __die_walk_funclines_cb, &lw, &die_mem);
-done:
- return lw.retval;
-}
-
-static int __die_walk_culines_cb(Dwarf_Die *sp_die, void *data)
-{
- struct __line_walk_param *lw = data;
-
- lw->retval = __die_walk_funclines(sp_die, lw->handler, lw->data);
- if (lw->retval != 0)
- return DWARF_CB_ABORT;
-
- return DWARF_CB_OK;
-}
-
-/*
- * Walk on lines inside given PDIE. If the PDIE is subprogram, walk only on
- * the lines inside the subprogram, otherwise PDIE must be a CU DIE.
- */
-static int die_walk_lines(Dwarf_Die *pdie, line_walk_handler_t handler,
- void *data)
-{
- Dwarf_Lines *lines;
- Dwarf_Line *line;
- Dwarf_Addr addr;
- const char *fname;
- int lineno, ret = 0;
- Dwarf_Die die_mem, *cu_die;
- size_t nlines, i;
-
- /* Get the CU die */
- if (dwarf_tag(pdie) == DW_TAG_subprogram)
- cu_die = dwarf_diecu(pdie, &die_mem, NULL, NULL);
- else
- cu_die = pdie;
- if (!cu_die) {
- pr_debug2("Failed to get CU from subprogram\n");
- return -EINVAL;
- }
-
- /* Get lines list in the CU */
- if (dwarf_getsrclines(cu_die, &lines, &nlines) != 0) {
- pr_debug2("Failed to get source lines on this CU.\n");
- return -ENOENT;
- }
- pr_debug2("Get %zd lines from this CU\n", nlines);
-
- /* Walk on the lines on lines list */
- for (i = 0; i < nlines; i++) {
- line = dwarf_onesrcline(lines, i);
- if (line == NULL ||
- dwarf_lineno(line, &lineno) != 0 ||
- dwarf_lineaddr(line, &addr) != 0) {
- pr_debug2("Failed to get line info. "
- "Possible error in debuginfo.\n");
- continue;
- }
- /* Filter lines based on address */
- if (pdie != cu_die)
- /*
- * Address filtering
- * The line is included in given function, and
- * no inline block includes it.
- */
- if (!dwarf_haspc(pdie, addr) ||
- die_find_inlinefunc(pdie, addr, &die_mem))
- continue;
- /* Get source line */
- fname = dwarf_linesrc(line, NULL, NULL);
-
- ret = handler(fname, lineno, addr, data);
- if (ret != 0)
- return ret;
- }
-
- /*
- * Dwarf lines doesn't include function declarations and inlined
- * subroutines. We have to check functions list or given function.
- */
- if (pdie != cu_die)
- ret = __die_walk_funclines(pdie, handler, data);
- else {
- struct __line_walk_param param = {
- .handler = handler,
- .data = data,
- .retval = 0,
- };
- dwarf_getfuncs(cu_die, __die_walk_culines_cb, &param, 0);
- ret = param.retval;
+ if (debuginfo__init_online_kernel_dwarf(self, (Dwarf_Addr)addr) < 0) {
+ free(self);
+ self = NULL;
}
- return ret;
-}
-
-struct __find_variable_param {
- const char *name;
- Dwarf_Addr addr;
-};
-
-static int __die_find_variable_cb(Dwarf_Die *die_mem, void *data)
-{
- struct __find_variable_param *fvp = data;
- int tag;
-
- tag = dwarf_tag(die_mem);
- if ((tag == DW_TAG_formal_parameter ||
- tag == DW_TAG_variable) &&
- die_compare_name(die_mem, fvp->name))
- return DIE_FIND_CB_FOUND;
-
- if (dwarf_haspc(die_mem, fvp->addr))
- return DIE_FIND_CB_CONTINUE;
- else
- return DIE_FIND_CB_SIBLING;
-}
-
-/* Find a variable called 'name' at given address */
-static Dwarf_Die *die_find_variable_at(Dwarf_Die *sp_die, const char *name,
- Dwarf_Addr addr, Dwarf_Die *die_mem)
-{
- struct __find_variable_param fvp = { .name = name, .addr = addr};
-
- return die_find_child(sp_die, __die_find_variable_cb, (void *)&fvp,
- die_mem);
-}
-
-static int __die_find_member_cb(Dwarf_Die *die_mem, void *data)
-{
- const char *name = data;
-
- if ((dwarf_tag(die_mem) == DW_TAG_member) &&
- die_compare_name(die_mem, name))
- return DIE_FIND_CB_FOUND;
-
- return DIE_FIND_CB_SIBLING;
-}
-
-/* Find a member called 'name' */
-static Dwarf_Die *die_find_member(Dwarf_Die *st_die, const char *name,
- Dwarf_Die *die_mem)
-{
- return die_find_child(st_die, __die_find_member_cb, (void *)name,
- die_mem);
-}
-
-/* Get the name of given variable DIE */
-static int die_get_typename(Dwarf_Die *vr_die, char *buf, int len)
-{
- Dwarf_Die type;
- int tag, ret, ret2;
- const char *tmp = "";
-
- if (__die_get_real_type(vr_die, &type) == NULL)
- return -ENOENT;
-
- tag = dwarf_tag(&type);
- if (tag == DW_TAG_array_type || tag == DW_TAG_pointer_type)
- tmp = "*";
- else if (tag == DW_TAG_subroutine_type) {
- /* Function pointer */
- ret = snprintf(buf, len, "(function_type)");
- return (ret >= len) ? -E2BIG : ret;
- } else {
- if (!dwarf_diename(&type))
- return -ENOENT;
- if (tag == DW_TAG_union_type)
- tmp = "union ";
- else if (tag == DW_TAG_structure_type)
- tmp = "struct ";
- /* Write a base name */
- ret = snprintf(buf, len, "%s%s", tmp, dwarf_diename(&type));
- return (ret >= len) ? -E2BIG : ret;
- }
- ret = die_get_typename(&type, buf, len);
- if (ret > 0) {
- ret2 = snprintf(buf + ret, len - ret, "%s", tmp);
- ret = (ret2 >= len - ret) ? -E2BIG : ret2 + ret;
- }
- return ret;
+ return self;
}
-/* Get the name and type of given variable DIE, stored as "type\tname" */
-static int die_get_varname(Dwarf_Die *vr_die, char *buf, int len)
+void debuginfo__delete(struct debuginfo *self)
{
- int ret, ret2;
-
- ret = die_get_typename(vr_die, buf, len);
- if (ret < 0) {
- pr_debug("Failed to get type, make it unknown.\n");
- ret = snprintf(buf, len, "(unknown_type)");
+ if (self) {
+ if (self->dwfl)
+ dwfl_end(self->dwfl);
+ free(self);
}
- if (ret > 0) {
- ret2 = snprintf(buf + ret, len - ret, "\t%s",
- dwarf_diename(vr_die));
- ret = (ret2 >= len - ret) ? -E2BIG : ret2 + ret;
- }
- return ret;
}
/*
@@ -897,6 +374,7 @@ static int convert_variable_type(Dwarf_Die *vr_die,
struct probe_trace_arg_ref **ref_ptr = &tvar->ref;
Dwarf_Die type;
char buf[16];
+ int bsize, boffs, total;
int ret;
/* TODO: check all types */
@@ -906,11 +384,15 @@ static int convert_variable_type(Dwarf_Die *vr_die,
return (tvar->type == NULL) ? -ENOMEM : 0;
}
- if (die_get_bit_size(vr_die) != 0) {
+ bsize = dwarf_bitsize(vr_die);
+ if (bsize > 0) {
/* This is a bitfield */
- ret = snprintf(buf, 16, "b%d@%d/%zd", die_get_bit_size(vr_die),
- die_get_bit_offset(vr_die),
- BYTES_TO_BITS(die_get_byte_size(vr_die)));
+ boffs = dwarf_bitoffset(vr_die);
+ total = dwarf_bytesize(vr_die);
+ if (boffs < 0 || total < 0)
+ return -ENOENT;
+ ret = snprintf(buf, 16, "b%d@%d/%zd", bsize, boffs,
+ BYTES_TO_BITS(total));
goto formatted;
}
@@ -958,10 +440,11 @@ static int convert_variable_type(Dwarf_Die *vr_die,
return (tvar->type == NULL) ? -ENOMEM : 0;
}
- ret = BYTES_TO_BITS(die_get_byte_size(&type));
- if (!ret)
+ ret = dwarf_bytesize(&type);
+ if (ret <= 0)
/* No size ... try to use default type */
return 0;
+ ret = BYTES_TO_BITS(ret);
/* Check the bitwidth */
if (ret > MAX_BASIC_TYPE_BITS) {
@@ -1025,7 +508,7 @@ static int convert_variable_fields(Dwarf_Die *vr_die, const char *varname,
else
*ref_ptr = ref;
}
- ref->offset += die_get_byte_size(&type) * field->index;
+ ref->offset += dwarf_bytesize(&type) * field->index;
if (!field->next)
/* Save vr_die for converting types */
memcpy(die_mem, vr_die, sizeof(*die_mem));
@@ -1245,8 +728,7 @@ static int call_probe_finder(Dwarf_Die *sp_die, struct probe_finder *pf)
/* If no real subprogram, find a real one */
if (!sp_die || dwarf_tag(sp_die) != DW_TAG_subprogram) {
- sp_die = die_find_real_subprogram(&pf->cu_die,
- pf->addr, &die_mem);
+ sp_die = die_find_realfunc(&pf->cu_die, pf->addr, &die_mem);
if (!sp_die) {
pr_warning("Failed to find probe point in any "
"functions.\n");
@@ -1504,28 +986,18 @@ static int pubname_search_cb(Dwarf *dbg, Dwarf_Global *gl, void *data)
}
/* Find probe points from debuginfo */
-static int find_probes(int fd, struct probe_finder *pf)
+static int debuginfo__find_probes(struct debuginfo *self,
+ struct probe_finder *pf)
{
struct perf_probe_point *pp = &pf->pev->point;
Dwarf_Off off, noff;
size_t cuhl;
Dwarf_Die *diep;
- Dwarf *dbg = NULL;
- Dwfl *dwfl;
- Dwarf_Addr bias; /* Currently ignored */
int ret = 0;
- dbg = dwfl_init_offline_dwarf(fd, &dwfl, &bias);
- if (!dbg) {
- pr_warning("No debug information found in the vmlinux - "
- "please rebuild with CONFIG_DEBUG_INFO=y.\n");
- close(fd); /* Without dwfl_end(), fd isn't closed. */
- return -EBADF;
- }
-
#if _ELFUTILS_PREREQ(0, 142)
/* Get the call frame information from this dwarf */
- pf->cfi = dwarf_getcfi(dbg);
+ pf->cfi = dwarf_getcfi(self->dbg);
#endif
off = 0;
@@ -1544,7 +1016,8 @@ static int find_probes(int fd, struct probe_finder *pf)
.data = pf,
};
- dwarf_getpubnames(dbg, pubname_search_cb, &pubname_param, 0);
+ dwarf_getpubnames(self->dbg, pubname_search_cb,
+ &pubname_param, 0);
if (pubname_param.found) {
ret = probe_point_search_cb(&pf->sp_die, &probe_param);
if (ret)
@@ -1553,9 +1026,9 @@ static int find_probes(int fd, struct probe_finder *pf)
}
/* Loop on CUs (Compilation Unit) */
- while (!dwarf_nextcu(dbg, off, &noff, &cuhl, NULL, NULL, NULL)) {
+ while (!dwarf_nextcu(self->dbg, off, &noff, &cuhl, NULL, NULL, NULL)) {
/* Get the DIE(Debugging Information Entry) of this CU */
- diep = dwarf_offdie(dbg, off + cuhl, &pf->cu_die);
+ diep = dwarf_offdie(self->dbg, off + cuhl, &pf->cu_die);
if (!diep)
continue;
@@ -1582,8 +1055,6 @@ static int find_probes(int fd, struct probe_finder *pf)
found:
line_list__free(&pf->lcache);
- if (dwfl)
- dwfl_end(dwfl);
return ret;
}
@@ -1629,8 +1100,9 @@ static int add_probe_trace_event(Dwarf_Die *sp_die, struct probe_finder *pf)
}
/* Find probe_trace_events specified by perf_probe_event from debuginfo */
-int find_probe_trace_events(int fd, struct perf_probe_event *pev,
- struct probe_trace_event **tevs, int max_tevs)
+int debuginfo__find_trace_events(struct debuginfo *self,
+ struct perf_probe_event *pev,
+ struct probe_trace_event **tevs, int max_tevs)
{
struct trace_event_finder tf = {
.pf = {.pev = pev, .callback = add_probe_trace_event},
@@ -1645,7 +1117,7 @@ int find_probe_trace_events(int fd, struct perf_probe_event *pev,
tf.tevs = *tevs;
tf.ntevs = 0;
- ret = find_probes(fd, &tf.pf);
+ ret = debuginfo__find_probes(self, &tf.pf);
if (ret < 0) {
free(*tevs);
*tevs = NULL;
@@ -1739,9 +1211,10 @@ out:
}
/* Find available variables at given probe point */
-int find_available_vars_at(int fd, struct perf_probe_event *pev,
- struct variable_list **vls, int max_vls,
- bool externs)
+int debuginfo__find_available_vars_at(struct debuginfo *self,
+ struct perf_probe_event *pev,
+ struct variable_list **vls,
+ int max_vls, bool externs)
{
struct available_var_finder af = {
.pf = {.pev = pev, .callback = add_available_vars},
@@ -1756,7 +1229,7 @@ int find_available_vars_at(int fd, struct perf_probe_event *pev,
af.vls = *vls;
af.nvls = 0;
- ret = find_probes(fd, &af.pf);
+ ret = debuginfo__find_probes(self, &af.pf);
if (ret < 0) {
/* Free vlist for error */
while (af.nvls--) {
@@ -1774,28 +1247,19 @@ int find_available_vars_at(int fd, struct perf_probe_event *pev,
}
/* Reverse search */
-int find_perf_probe_point(unsigned long addr, struct perf_probe_point *ppt)
+int debuginfo__find_probe_point(struct debuginfo *self, unsigned long addr,
+ struct perf_probe_point *ppt)
{
Dwarf_Die cudie, spdie, indie;
- Dwarf *dbg = NULL;
- Dwfl *dwfl = NULL;
- Dwarf_Addr _addr, baseaddr, bias = 0;
+ Dwarf_Addr _addr, baseaddr;
const char *fname = NULL, *func = NULL, *tmp;
int baseline = 0, lineno = 0, ret = 0;
- /* Open the live linux kernel */
- dbg = dwfl_init_live_kernel_dwarf(addr, &dwfl, &bias);
- if (!dbg) {
- pr_warning("No debug information found in the vmlinux - "
- "please rebuild with CONFIG_DEBUG_INFO=y.\n");
- ret = -EINVAL;
- goto end;
- }
-
/* Adjust address with bias */
- addr += bias;
+ addr += self->bias;
+
/* Find cu die */
- if (!dwarf_addrdie(dbg, (Dwarf_Addr)addr - bias, &cudie)) {
+ if (!dwarf_addrdie(self->dbg, (Dwarf_Addr)addr - self->bias, &cudie)) {
pr_warning("Failed to find debug information for address %lx\n",
addr);
ret = -EINVAL;
@@ -1807,7 +1271,7 @@ int find_perf_probe_point(unsigned long addr, struct perf_probe_point *ppt)
/* Don't care whether it failed or not */
/* Find a corresponding function (name, baseline and baseaddr) */
- if (die_find_real_subprogram(&cudie, (Dwarf_Addr)addr, &spdie)) {
+ if (die_find_realfunc(&cudie, (Dwarf_Addr)addr, &spdie)) {
/* Get function entry information */
tmp = dwarf_diename(&spdie);
if (!tmp ||
@@ -1871,8 +1335,6 @@ post:
}
}
end:
- if (dwfl)
- dwfl_end(dwfl);
if (ret == 0 && (fname || func))
ret = 1; /* Found a point */
return ret;
@@ -1982,26 +1444,15 @@ static int find_line_range_by_func(struct line_finder *lf)
return param.retval;
}
-int find_line_range(int fd, struct line_range *lr)
+int debuginfo__find_line_range(struct debuginfo *self, struct line_range *lr)
{
struct line_finder lf = {.lr = lr, .found = 0};
int ret = 0;
Dwarf_Off off = 0, noff;
size_t cuhl;
Dwarf_Die *diep;
- Dwarf *dbg = NULL;
- Dwfl *dwfl;
- Dwarf_Addr bias; /* Currently ignored */
const char *comp_dir;
- dbg = dwfl_init_offline_dwarf(fd, &dwfl, &bias);
- if (!dbg) {
- pr_warning("No debug information found in the vmlinux - "
- "please rebuild with CONFIG_DEBUG_INFO=y.\n");
- close(fd); /* Without dwfl_end(), fd isn't closed. */
- return -EBADF;
- }
-
/* Fastpath: lookup by function name from .debug_pubnames section */
if (lr->function) {
struct pubname_callback_param pubname_param = {
@@ -2010,7 +1461,8 @@ int find_line_range(int fd, struct line_range *lr)
struct dwarf_callback_param line_range_param = {
.data = (void *)&lf, .retval = 0};
- dwarf_getpubnames(dbg, pubname_search_cb, &pubname_param, 0);
+ dwarf_getpubnames(self->dbg, pubname_search_cb,
+ &pubname_param, 0);
if (pubname_param.found) {
line_range_search_cb(&lf.sp_die, &line_range_param);
if (lf.found)
@@ -2020,11 +1472,12 @@ int find_line_range(int fd, struct line_range *lr)
/* Loop on CUs (Compilation Unit) */
while (!lf.found && ret >= 0) {
- if (dwarf_nextcu(dbg, off, &noff, &cuhl, NULL, NULL, NULL) != 0)
+ if (dwarf_nextcu(self->dbg, off, &noff, &cuhl,
+ NULL, NULL, NULL) != 0)
break;
/* Get the DIE(Debugging Information Entry) of this CU */
- diep = dwarf_offdie(dbg, off + cuhl, &lf.cu_die);
+ diep = dwarf_offdie(self->dbg, off + cuhl, &lf.cu_die);
if (!diep)
continue;
@@ -2058,7 +1511,6 @@ found:
}
pr_debug("path: %s\n", lr->path);
- dwfl_end(dwfl);
return (ret < 0) ? ret : lf.found;
}
diff --git a/tools/perf/util/probe-finder.h b/tools/perf/util/probe-finder.h
index 605730a366d..c478b42a247 100644
--- a/tools/perf/util/probe-finder.h
+++ b/tools/perf/util/probe-finder.h
@@ -16,27 +16,42 @@ static inline int is_c_varname(const char *name)
}
#ifdef DWARF_SUPPORT
+
+#include "dwarf-aux.h"
+
+/* TODO: export debuginfo data structure even if no dwarf support */
+
+/* debug information structure */
+struct debuginfo {
+ Dwarf *dbg;
+ Dwfl *dwfl;
+ Dwarf_Addr bias;
+};
+
+extern struct debuginfo *debuginfo__new(const char *path);
+extern struct debuginfo *debuginfo__new_online_kernel(unsigned long addr);
+extern void debuginfo__delete(struct debuginfo *self);
+
/* Find probe_trace_events specified by perf_probe_event from debuginfo */
-extern int find_probe_trace_events(int fd, struct perf_probe_event *pev,
- struct probe_trace_event **tevs,
- int max_tevs);
+extern int debuginfo__find_trace_events(struct debuginfo *self,
+ struct perf_probe_event *pev,
+ struct probe_trace_event **tevs,
+ int max_tevs);
/* Find a perf_probe_point from debuginfo */
-extern int find_perf_probe_point(unsigned long addr,
- struct perf_probe_point *ppt);
+extern int debuginfo__find_probe_point(struct debuginfo *self,
+ unsigned long addr,
+ struct perf_probe_point *ppt);
/* Find a line range */
-extern int find_line_range(int fd, struct line_range *lr);
+extern int debuginfo__find_line_range(struct debuginfo *self,
+ struct line_range *lr);
/* Find available variables */
-extern int find_available_vars_at(int fd, struct perf_probe_event *pev,
- struct variable_list **vls, int max_points,
- bool externs);
-
-#include <dwarf.h>
-#include <elfutils/libdw.h>
-#include <elfutils/libdwfl.h>
-#include <elfutils/version.h>
+extern int debuginfo__find_available_vars_at(struct debuginfo *self,
+ struct perf_probe_event *pev,
+ struct variable_list **vls,
+ int max_points, bool externs);
struct probe_finder {
struct perf_probe_event *pev; /* Target probe event */
diff --git a/tools/perf/util/python.c b/tools/perf/util/python.c
index a9ac0504aab..8e0b5a39d8a 100644
--- a/tools/perf/util/python.c
+++ b/tools/perf/util/python.c
@@ -247,7 +247,7 @@ struct pyrf_cpu_map {
static int pyrf_cpu_map__init(struct pyrf_cpu_map *pcpus,
PyObject *args, PyObject *kwargs)
{
- static char *kwlist[] = { "cpustr", NULL, NULL, };
+ static char *kwlist[] = { "cpustr", NULL };
char *cpustr = NULL;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|s",
@@ -316,7 +316,7 @@ struct pyrf_thread_map {
static int pyrf_thread_map__init(struct pyrf_thread_map *pthreads,
PyObject *args, PyObject *kwargs)
{
- static char *kwlist[] = { "pid", "tid", NULL, NULL, };
+ static char *kwlist[] = { "pid", "tid", NULL };
int pid = -1, tid = -1;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii",
@@ -418,7 +418,9 @@ static int pyrf_evsel__init(struct pyrf_evsel *pevsel,
"wakeup_events",
"bp_type",
"bp_addr",
- "bp_len", NULL, NULL, };
+ "bp_len",
+ NULL
+ };
u64 sample_period = 0;
u32 disabled = 0,
inherit = 0,
@@ -499,7 +501,7 @@ static PyObject *pyrf_evsel__open(struct pyrf_evsel *pevsel,
struct thread_map *threads = NULL;
PyObject *pcpus = NULL, *pthreads = NULL;
int group = 0, inherit = 0;
- static char *kwlist[] = {"cpus", "threads", "group", "inherit", NULL, NULL};
+ static char *kwlist[] = { "cpus", "threads", "group", "inherit", NULL };
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|OOii", kwlist,
&pcpus, &pthreads, &group, &inherit))
@@ -582,8 +584,7 @@ static PyObject *pyrf_evlist__mmap(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs)
{
struct perf_evlist *evlist = &pevlist->evlist;
- static char *kwlist[] = {"pages", "overwrite",
- NULL, NULL};
+ static char *kwlist[] = { "pages", "overwrite", NULL };
int pages = 128, overwrite = false;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|ii", kwlist,
@@ -603,7 +604,7 @@ static PyObject *pyrf_evlist__poll(struct pyrf_evlist *pevlist,
PyObject *args, PyObject *kwargs)
{
struct perf_evlist *evlist = &pevlist->evlist;
- static char *kwlist[] = {"timeout", NULL, NULL};
+ static char *kwlist[] = { "timeout", NULL };
int timeout = -1, n;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "|i", kwlist, &timeout))
@@ -674,7 +675,7 @@ static PyObject *pyrf_evlist__read_on_cpu(struct pyrf_evlist *pevlist,
struct perf_evlist *evlist = &pevlist->evlist;
union perf_event *event;
int sample_id_all = 1, cpu;
- static char *kwlist[] = {"cpu", "sample_id_all", NULL, NULL};
+ static char *kwlist[] = { "cpu", "sample_id_all", NULL };
int err;
if (!PyArg_ParseTupleAndKeywords(args, kwargs, "i|i", kwlist,
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index f5a8fbdd3f7..72458d9da5b 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -12,6 +12,7 @@
#include "session.h"
#include "sort.h"
#include "util.h"
+#include "cpumap.h"
static int perf_session__open(struct perf_session *self, bool force)
{
@@ -247,9 +248,14 @@ int perf_session__resolve_callchain(struct perf_session *self,
callchain_cursor_reset(&self->callchain_cursor);
for (i = 0; i < chain->nr; i++) {
- u64 ip = chain->ips[i];
+ u64 ip;
struct addr_location al;
+ if (callchain_param.order == ORDER_CALLEE)
+ ip = chain->ips[i];
+ else
+ ip = chain->ips[chain->nr - i - 1];
+
if (ip >= PERF_CONTEXT_MAX) {
switch (ip) {
case PERF_CONTEXT_HV:
@@ -407,20 +413,26 @@ static void perf_event__read_swap(union perf_event *event)
event->read.id = bswap_64(event->read.id);
}
-static void perf_event__attr_swap(union perf_event *event)
+/* exported for swapping attributes in file header */
+void perf_event__attr_swap(struct perf_event_attr *attr)
+{
+ attr->type = bswap_32(attr->type);
+ attr->size = bswap_32(attr->size);
+ attr->config = bswap_64(attr->config);
+ attr->sample_period = bswap_64(attr->sample_period);
+ attr->sample_type = bswap_64(attr->sample_type);
+ attr->read_format = bswap_64(attr->read_format);
+ attr->wakeup_events = bswap_32(attr->wakeup_events);
+ attr->bp_type = bswap_32(attr->bp_type);
+ attr->bp_addr = bswap_64(attr->bp_addr);
+ attr->bp_len = bswap_64(attr->bp_len);
+}
+
+static void perf_event__hdr_attr_swap(union perf_event *event)
{
size_t size;
- event->attr.attr.type = bswap_32(event->attr.attr.type);
- event->attr.attr.size = bswap_32(event->attr.attr.size);
- event->attr.attr.config = bswap_64(event->attr.attr.config);
- event->attr.attr.sample_period = bswap_64(event->attr.attr.sample_period);
- event->attr.attr.sample_type = bswap_64(event->attr.attr.sample_type);
- event->attr.attr.read_format = bswap_64(event->attr.attr.read_format);
- event->attr.attr.wakeup_events = bswap_32(event->attr.attr.wakeup_events);
- event->attr.attr.bp_type = bswap_32(event->attr.attr.bp_type);
- event->attr.attr.bp_addr = bswap_64(event->attr.attr.bp_addr);
- event->attr.attr.bp_len = bswap_64(event->attr.attr.bp_len);
+ perf_event__attr_swap(&event->attr.attr);
size = event->header.size;
size -= (void *)&event->attr.id - (void *)event;
@@ -448,7 +460,7 @@ static perf_event__swap_op perf_event__swap_ops[] = {
[PERF_RECORD_LOST] = perf_event__all64_swap,
[PERF_RECORD_READ] = perf_event__read_swap,
[PERF_RECORD_SAMPLE] = perf_event__all64_swap,
- [PERF_RECORD_HEADER_ATTR] = perf_event__attr_swap,
+ [PERF_RECORD_HEADER_ATTR] = perf_event__hdr_attr_swap,
[PERF_RECORD_HEADER_EVENT_TYPE] = perf_event__event_type_swap,
[PERF_RECORD_HEADER_TRACING_DATA] = perf_event__tracing_data_swap,
[PERF_RECORD_HEADER_BUILD_ID] = NULL,
@@ -708,9 +720,9 @@ static void dump_sample(struct perf_session *session, union perf_event *event,
if (!dump_trace)
return;
- printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 "\n",
+ printf("(IP, %d): %d/%d: %#" PRIx64 " period: %" PRIu64 " addr: %#" PRIx64 "\n",
event->header.misc, sample->pid, sample->tid, sample->ip,
- sample->period);
+ sample->period, sample->addr);
if (session->sample_type & PERF_SAMPLE_CALLCHAIN)
callchain__printf(sample);
@@ -1202,9 +1214,10 @@ struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
return NULL;
}
-void perf_session__print_symbols(union perf_event *event,
- struct perf_sample *sample,
- struct perf_session *session)
+void perf_session__print_ip(union perf_event *event,
+ struct perf_sample *sample,
+ struct perf_session *session,
+ int print_sym, int print_dso)
{
struct addr_location al;
const char *symname, *dsoname;
@@ -1233,32 +1246,83 @@ void perf_session__print_symbols(union perf_event *event,
if (!node)
break;
- if (node->sym && node->sym->name)
- symname = node->sym->name;
+ printf("\t%16" PRIx64, node->ip);
+ if (print_sym) {
+ if (node->sym && node->sym->name)
+ symname = node->sym->name;
+ else
+ symname = "";
+
+ printf(" %s", symname);
+ }
+ if (print_dso) {
+ if (node->map && node->map->dso && node->map->dso->name)
+ dsoname = node->map->dso->name;
+ else
+ dsoname = "";
+
+ printf(" (%s)", dsoname);
+ }
+ printf("\n");
+
+ callchain_cursor_advance(cursor);
+ }
+
+ } else {
+ printf("%16" PRIx64, sample->ip);
+ if (print_sym) {
+ if (al.sym && al.sym->name)
+ symname = al.sym->name;
else
symname = "";
- if (node->map && node->map->dso && node->map->dso->name)
- dsoname = node->map->dso->name;
+ printf(" %s", symname);
+ }
+
+ if (print_dso) {
+ if (al.map && al.map->dso && al.map->dso->name)
+ dsoname = al.map->dso->name;
else
dsoname = "";
- printf("\t%16" PRIx64 " %s (%s)\n", node->ip, symname, dsoname);
+ printf(" (%s)", dsoname);
+ }
+ }
+}
- callchain_cursor_advance(cursor);
+int perf_session__cpu_bitmap(struct perf_session *session,
+ const char *cpu_list, unsigned long *cpu_bitmap)
+{
+ int i;
+ struct cpu_map *map;
+
+ for (i = 0; i < PERF_TYPE_MAX; ++i) {
+ struct perf_evsel *evsel;
+
+ evsel = perf_session__find_first_evtype(session, i);
+ if (!evsel)
+ continue;
+
+ if (!(evsel->attr.sample_type & PERF_SAMPLE_CPU)) {
+ pr_err("File does not contain CPU events. "
+ "Remove -c option to proceed.\n");
+ return -1;
}
+ }
- } else {
- if (al.sym && al.sym->name)
- symname = al.sym->name;
- else
- symname = "";
+ map = cpu_map__new(cpu_list);
- if (al.map && al.map->dso && al.map->dso->name)
- dsoname = al.map->dso->name;
- else
- dsoname = "";
+ for (i = 0; i < map->nr; i++) {
+ int cpu = map->map[i];
+
+ if (cpu >= MAX_NR_CPUS) {
+ pr_err("Requested CPU %d too large. "
+ "Consider raising MAX_NR_CPUS\n", cpu);
+ return -1;
+ }
- printf("%16" PRIx64 " %s (%s)", al.addr, symname, dsoname);
+ set_bit(cpu, cpu_bitmap);
}
+
+ return 0;
}
diff --git a/tools/perf/util/session.h b/tools/perf/util/session.h
index 66d4e149087..170601e67d6 100644
--- a/tools/perf/util/session.h
+++ b/tools/perf/util/session.h
@@ -112,6 +112,7 @@ int perf_session__set_kallsyms_ref_reloc_sym(struct map **maps,
u64 addr);
void mem_bswap_64(void *src, int byte_size);
+void perf_event__attr_swap(struct perf_event_attr *attr);
int perf_session__create_kernel_maps(struct perf_session *self);
@@ -167,8 +168,12 @@ static inline int perf_session__parse_sample(struct perf_session *session,
struct perf_evsel *perf_session__find_first_evtype(struct perf_session *session,
unsigned int type);
-void perf_session__print_symbols(union perf_event *event,
+void perf_session__print_ip(union perf_event *event,
struct perf_sample *sample,
- struct perf_session *session);
+ struct perf_session *session,
+ int print_sym, int print_dso);
+
+int perf_session__cpu_bitmap(struct perf_session *session,
+ const char *cpu_list, unsigned long *cpu_bitmap);
#endif /* __PERF_SESSION_H */
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index f44fa541d56..401e220566f 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -15,95 +15,6 @@ char * field_sep;
LIST_HEAD(hist_entry__sort_list);
-static int hist_entry__thread_snprintf(struct hist_entry *self, char *bf,
- size_t size, unsigned int width);
-static int hist_entry__comm_snprintf(struct hist_entry *self, char *bf,
- size_t size, unsigned int width);
-static int hist_entry__dso_snprintf(struct hist_entry *self, char *bf,
- size_t size, unsigned int width);
-static int hist_entry__sym_snprintf(struct hist_entry *self, char *bf,
- size_t size, unsigned int width);
-static int hist_entry__parent_snprintf(struct hist_entry *self, char *bf,
- size_t size, unsigned int width);
-static int hist_entry__cpu_snprintf(struct hist_entry *self, char *bf,
- size_t size, unsigned int width);
-
-struct sort_entry sort_thread = {
- .se_header = "Command: Pid",
- .se_cmp = sort__thread_cmp,
- .se_snprintf = hist_entry__thread_snprintf,
- .se_width_idx = HISTC_THREAD,
-};
-
-struct sort_entry sort_comm = {
- .se_header = "Command",
- .se_cmp = sort__comm_cmp,
- .se_collapse = sort__comm_collapse,
- .se_snprintf = hist_entry__comm_snprintf,
- .se_width_idx = HISTC_COMM,
-};
-
-struct sort_entry sort_dso = {
- .se_header = "Shared Object",
- .se_cmp = sort__dso_cmp,
- .se_snprintf = hist_entry__dso_snprintf,
- .se_width_idx = HISTC_DSO,
-};
-
-struct sort_entry sort_sym = {
- .se_header = "Symbol",
- .se_cmp = sort__sym_cmp,
- .se_snprintf = hist_entry__sym_snprintf,
- .se_width_idx = HISTC_SYMBOL,
-};
-
-struct sort_entry sort_parent = {
- .se_header = "Parent symbol",
- .se_cmp = sort__parent_cmp,
- .se_snprintf = hist_entry__parent_snprintf,
- .se_width_idx = HISTC_PARENT,
-};
-
-struct sort_entry sort_cpu = {
- .se_header = "CPU",
- .se_cmp = sort__cpu_cmp,
- .se_snprintf = hist_entry__cpu_snprintf,
- .se_width_idx = HISTC_CPU,
-};
-
-struct sort_dimension {
- const char *name;
- struct sort_entry *entry;
- int taken;
-};
-
-static struct sort_dimension sort_dimensions[] = {
- { .name = "pid", .entry = &sort_thread, },
- { .name = "comm", .entry = &sort_comm, },
- { .name = "dso", .entry = &sort_dso, },
- { .name = "symbol", .entry = &sort_sym, },
- { .name = "parent", .entry = &sort_parent, },
- { .name = "cpu", .entry = &sort_cpu, },
-};
-
-int64_t cmp_null(void *l, void *r)
-{
- if (!l && !r)
- return 0;
- else if (!l)
- return -1;
- else
- return 1;
-}
-
-/* --sort pid */
-
-int64_t
-sort__thread_cmp(struct hist_entry *left, struct hist_entry *right)
-{
- return right->thread->pid - left->thread->pid;
-}
-
static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
{
int n;
@@ -125,6 +36,24 @@ static int repsep_snprintf(char *bf, size_t size, const char *fmt, ...)
return n;
}
+static int64_t cmp_null(void *l, void *r)
+{
+ if (!l && !r)
+ return 0;
+ else if (!l)
+ return -1;
+ else
+ return 1;
+}
+
+/* --sort pid */
+
+static int64_t
+sort__thread_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ return right->thread->pid - left->thread->pid;
+}
+
static int hist_entry__thread_snprintf(struct hist_entry *self, char *bf,
size_t size, unsigned int width)
{
@@ -132,15 +61,50 @@ static int hist_entry__thread_snprintf(struct hist_entry *self, char *bf,
self->thread->comm ?: "", self->thread->pid);
}
+struct sort_entry sort_thread = {
+ .se_header = "Command: Pid",
+ .se_cmp = sort__thread_cmp,
+ .se_snprintf = hist_entry__thread_snprintf,
+ .se_width_idx = HISTC_THREAD,
+};
+
+/* --sort comm */
+
+static int64_t
+sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
+{
+ return right->thread->pid - left->thread->pid;
+}
+
+static int64_t
+sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
+{
+ char *comm_l = left->thread->comm;
+ char *comm_r = right->thread->comm;
+
+ if (!comm_l || !comm_r)
+ return cmp_null(comm_l, comm_r);
+
+ return strcmp(comm_l, comm_r);
+}
+
static int hist_entry__comm_snprintf(struct hist_entry *self, char *bf,
size_t size, unsigned int width)
{
return repsep_snprintf(bf, size, "%*s", width, self->thread->comm);
}
+struct sort_entry sort_comm = {
+ .se_header = "Command",
+ .se_cmp = sort__comm_cmp,
+ .se_collapse = sort__comm_collapse,
+ .se_snprintf = hist_entry__comm_snprintf,
+ .se_width_idx = HISTC_COMM,
+};
+
/* --sort dso */
-int64_t
+static int64_t
sort__dso_cmp(struct hist_entry *left, struct hist_entry *right)
{
struct dso *dso_l = left->ms.map ? left->ms.map->dso : NULL;
@@ -173,9 +137,16 @@ static int hist_entry__dso_snprintf(struct hist_entry *self, char *bf,
return repsep_snprintf(bf, size, "%-*s", width, "[unknown]");
}
+struct sort_entry sort_dso = {
+ .se_header = "Shared Object",
+ .se_cmp = sort__dso_cmp,
+ .se_snprintf = hist_entry__dso_snprintf,
+ .se_width_idx = HISTC_DSO,
+};
+
/* --sort symbol */
-int64_t
+static int64_t
sort__sym_cmp(struct hist_entry *left, struct hist_entry *right)
{
u64 ip_l, ip_r;
@@ -211,29 +182,16 @@ static int hist_entry__sym_snprintf(struct hist_entry *self, char *bf,
return ret;
}
-/* --sort comm */
-
-int64_t
-sort__comm_cmp(struct hist_entry *left, struct hist_entry *right)
-{
- return right->thread->pid - left->thread->pid;
-}
-
-int64_t
-sort__comm_collapse(struct hist_entry *left, struct hist_entry *right)
-{
- char *comm_l = left->thread->comm;
- char *comm_r = right->thread->comm;
-
- if (!comm_l || !comm_r)
- return cmp_null(comm_l, comm_r);
-
- return strcmp(comm_l, comm_r);
-}
+struct sort_entry sort_sym = {
+ .se_header = "Symbol",
+ .se_cmp = sort__sym_cmp,
+ .se_snprintf = hist_entry__sym_snprintf,
+ .se_width_idx = HISTC_SYMBOL,
+};
/* --sort parent */
-int64_t
+static int64_t
sort__parent_cmp(struct hist_entry *left, struct hist_entry *right)
{
struct symbol *sym_l = left->parent;
@@ -252,9 +210,16 @@ static int hist_entry__parent_snprintf(struct hist_entry *self, char *bf,
self->parent ? self->parent->name : "[other]");
}
+struct sort_entry sort_parent = {
+ .se_header = "Parent symbol",
+ .se_cmp = sort__parent_cmp,
+ .se_snprintf = hist_entry__parent_snprintf,
+ .se_width_idx = HISTC_PARENT,
+};
+
/* --sort cpu */
-int64_t
+static int64_t
sort__cpu_cmp(struct hist_entry *left, struct hist_entry *right)
{
return right->cpu - left->cpu;
@@ -266,6 +231,28 @@ static int hist_entry__cpu_snprintf(struct hist_entry *self, char *bf,
return repsep_snprintf(bf, size, "%-*d", width, self->cpu);
}
+struct sort_entry sort_cpu = {
+ .se_header = "CPU",
+ .se_cmp = sort__cpu_cmp,
+ .se_snprintf = hist_entry__cpu_snprintf,
+ .se_width_idx = HISTC_CPU,
+};
+
+struct sort_dimension {
+ const char *name;
+ struct sort_entry *entry;
+ int taken;
+};
+
+static struct sort_dimension sort_dimensions[] = {
+ { .name = "pid", .entry = &sort_thread, },
+ { .name = "comm", .entry = &sort_comm, },
+ { .name = "dso", .entry = &sort_dso, },
+ { .name = "symbol", .entry = &sort_sym, },
+ { .name = "parent", .entry = &sort_parent, },
+ { .name = "cpu", .entry = &sort_cpu, },
+};
+
int sort_dimension__add(const char *tok)
{
unsigned int i;
@@ -273,15 +260,9 @@ int sort_dimension__add(const char *tok)
for (i = 0; i < ARRAY_SIZE(sort_dimensions); i++) {
struct sort_dimension *sd = &sort_dimensions[i];
- if (sd->taken)
- continue;
-
if (strncasecmp(tok, sd->name, strlen(tok)))
continue;
- if (sd->entry->se_collapse)
- sort__need_collapse = 1;
-
if (sd->entry == &sort_parent) {
int ret = regcomp(&parent_regex, parent_pattern, REG_EXTENDED);
if (ret) {
@@ -294,6 +275,12 @@ int sort_dimension__add(const char *tok)
sort__has_parent = 1;
}
+ if (sd->taken)
+ return 0;
+
+ if (sd->entry->se_collapse)
+ sort__need_collapse = 1;
+
if (list_empty(&hist_entry__sort_list)) {
if (!strcmp(sd->name, "pid"))
sort__first_dimension = SORT_PID;
diff --git a/tools/perf/util/sort.h b/tools/perf/util/sort.h
index 0b91053a7d1..77d0388ad41 100644
--- a/tools/perf/util/sort.h
+++ b/tools/perf/util/sort.h
@@ -103,20 +103,6 @@ extern struct sort_entry sort_thread;
extern struct list_head hist_entry__sort_list;
void setup_sorting(const char * const usagestr[], const struct option *opts);
-
-extern size_t sort__thread_print(FILE *, struct hist_entry *, unsigned int);
-extern size_t sort__comm_print(FILE *, struct hist_entry *, unsigned int);
-extern size_t sort__dso_print(FILE *, struct hist_entry *, unsigned int);
-extern size_t sort__sym_print(FILE *, struct hist_entry *, unsigned int __used);
-extern int64_t cmp_null(void *, void *);
-extern int64_t sort__thread_cmp(struct hist_entry *, struct hist_entry *);
-extern int64_t sort__comm_cmp(struct hist_entry *, struct hist_entry *);
-extern int64_t sort__comm_collapse(struct hist_entry *, struct hist_entry *);
-extern int64_t sort__dso_cmp(struct hist_entry *, struct hist_entry *);
-extern int64_t sort__sym_cmp(struct hist_entry *, struct hist_entry *);
-extern int64_t sort__parent_cmp(struct hist_entry *, struct hist_entry *);
-int64_t sort__cpu_cmp(struct hist_entry *left, struct hist_entry *right);
-extern size_t sort__parent_print(FILE *, struct hist_entry *, unsigned int);
extern int sort_dimension__add(const char *);
void sort_entry__setup_elide(struct sort_entry *self, struct strlist *list,
const char *list_name, FILE *fp);
diff --git a/tools/perf/util/string.c b/tools/perf/util/string.c
index b9a985dadd0..d5836382ff2 100644
--- a/tools/perf/util/string.c
+++ b/tools/perf/util/string.c
@@ -294,3 +294,22 @@ bool strlazymatch(const char *str, const char *pat)
{
return __match_glob(str, pat, true);
}
+
+/**
+ * strtailcmp - Compare the tail of two strings
+ * @s1: 1st string to be compared
+ * @s2: 2nd string to be compared
+ *
+ * Return 0 if whole of either string is same as another's tail part.
+ */
+int strtailcmp(const char *s1, const char *s2)
+{
+ int i1 = strlen(s1);
+ int i2 = strlen(s2);
+ while (--i1 >= 0 && --i2 >= 0) {
+ if (s1[i1] != s2[i2])
+ return s1[i1] - s2[i2];
+ }
+ return 0;
+}
+
diff --git a/tools/perf/util/trace-event-info.c b/tools/perf/util/trace-event-info.c
index 35729f4c40c..3403f814ad7 100644
--- a/tools/perf/util/trace-event-info.c
+++ b/tools/perf/util/trace-event-info.c
@@ -183,106 +183,59 @@ int bigendian(void)
return *ptr == 0x01020304;
}
-static unsigned long long copy_file_fd(int fd)
+/* unfortunately, you can not stat debugfs or proc files for size */
+static void record_file(const char *file, size_t hdr_sz)
{
unsigned long long size = 0;
- char buf[BUFSIZ];
- int r;
-
- do {
- r = read(fd, buf, BUFSIZ);
- if (r > 0) {
- size += r;
- write_or_die(buf, r);
- }
- } while (r > 0);
-
- return size;
-}
-
-static unsigned long long copy_file(const char *file)
-{
- unsigned long long size = 0;
- int fd;
+ char buf[BUFSIZ], *sizep;
+ off_t hdr_pos = lseek(output_fd, 0, SEEK_CUR);
+ int r, fd;
fd = open(file, O_RDONLY);
if (fd < 0)
die("Can't read '%s'", file);
- size = copy_file_fd(fd);
- close(fd);
- return size;
-}
-
-static unsigned long get_size_fd(int fd)
-{
- unsigned long long size = 0;
- char buf[BUFSIZ];
- int r;
+ /* put in zeros for file size, then fill true size later */
+ write_or_die(&size, hdr_sz);
do {
r = read(fd, buf, BUFSIZ);
- if (r > 0)
+ if (r > 0) {
size += r;
+ write_or_die(buf, r);
+ }
} while (r > 0);
-
- lseek(fd, 0, SEEK_SET);
-
- return size;
-}
-
-static unsigned long get_size(const char *file)
-{
- unsigned long long size = 0;
- int fd;
-
- fd = open(file, O_RDONLY);
- if (fd < 0)
- die("Can't read '%s'", file);
- size = get_size_fd(fd);
close(fd);
- return size;
+ /* ugh, handle big-endian hdr_size == 4 */
+ sizep = (char*)&size;
+ if (bigendian())
+ sizep += sizeof(u64) - hdr_sz;
+
+ if (pwrite(output_fd, sizep, hdr_sz, hdr_pos) < 0)
+ die("writing to %s", output_file);
}
static void read_header_files(void)
{
- unsigned long long size, check_size;
char *path;
- int fd;
+ struct stat st;
path = get_tracing_file("events/header_page");
- fd = open(path, O_RDONLY);
- if (fd < 0)
+ if (stat(path, &st) < 0)
die("can't read '%s'", path);
- /* unfortunately, you can not stat debugfs files for size */
- size = get_size_fd(fd);
-
write_or_die("header_page", 12);
- write_or_die(&size, 8);
- check_size = copy_file_fd(fd);
- close(fd);
-
- if (size != check_size)
- die("wrong size for '%s' size=%lld read=%lld",
- path, size, check_size);
+ record_file(path, 8);
put_tracing_file(path);
path = get_tracing_file("events/header_event");
- fd = open(path, O_RDONLY);
- if (fd < 0)
+ if (stat(path, &st) < 0)
die("can't read '%s'", path);
- size = get_size_fd(fd);
-
write_or_die("header_event", 13);
- write_or_die(&size, 8);
- check_size = copy_file_fd(fd);
- if (size != check_size)
- die("wrong size for '%s'", path);
+ record_file(path, 8);
put_tracing_file(path);
- close(fd);
}
static bool name_in_tp_list(char *sys, struct tracepoint_path *tps)
@@ -298,7 +251,6 @@ static bool name_in_tp_list(char *sys, struct tracepoint_path *tps)
static void copy_event_system(const char *sys, struct tracepoint_path *tps)
{
- unsigned long long size, check_size;
struct dirent *dent;
struct stat st;
char *format;
@@ -338,14 +290,8 @@ static void copy_event_system(const char *sys, struct tracepoint_path *tps)
sprintf(format, "%s/%s/format", sys, dent->d_name);
ret = stat(format, &st);
- if (ret >= 0) {
- /* unfortunately, you can not stat debugfs files for size */
- size = get_size(format);
- write_or_die(&size, 8);
- check_size = copy_file(format);
- if (size != check_size)
- die("error in size of file '%s'", format);
- }
+ if (ret >= 0)
+ record_file(format, 8);
free(format);
}
@@ -426,7 +372,7 @@ static void read_event_files(struct tracepoint_path *tps)
static void read_proc_kallsyms(void)
{
- unsigned int size, check_size;
+ unsigned int size;
const char *path = "/proc/kallsyms";
struct stat st;
int ret;
@@ -438,17 +384,12 @@ static void read_proc_kallsyms(void)
write_or_die(&size, 4);
return;
}
- size = get_size(path);
- write_or_die(&size, 4);
- check_size = copy_file(path);
- if (size != check_size)
- die("error in size of file '%s'", path);
-
+ record_file(path, 4);
}
static void read_ftrace_printk(void)
{
- unsigned int size, check_size;
+ unsigned int size;
char *path;
struct stat st;
int ret;
@@ -461,11 +402,8 @@ static void read_ftrace_printk(void)
write_or_die(&size, 4);
goto out;
}
- size = get_size(path);
- write_or_die(&size, 4);
- check_size = copy_file(path);
- if (size != check_size)
- die("error in size of file '%s'", path);
+ record_file(path, 4);
+
out:
put_tracing_file(path);
}
diff --git a/tools/perf/util/util.h b/tools/perf/util/util.h
index fc784284ac8..0128906bac8 100644
--- a/tools/perf/util/util.h
+++ b/tools/perf/util/util.h
@@ -238,6 +238,7 @@ char **argv_split(const char *str, int *argcp);
void argv_free(char **argv);
bool strglobmatch(const char *str, const char *pat);
bool strlazymatch(const char *str, const char *pat);
+int strtailcmp(const char *s1, const char *s2);
unsigned long convert_unit(unsigned long value, char *unit);
int readn(int fd, void *buf, size_t size);