// SPDX-License-Identifier: GPL-2.0
#include <inttypes.h>
#include <signal.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <sys/types.h>
#include <linux/compiler.h>
#include <linux/kernel.h>
#include <linux/string.h>
#include <linux/zalloc.h>
#include <api/io.h>
#include "util/dso.h"
#include "util/debug.h"
#include "util/callchain.h"
#include "util/symbol_conf.h"
#ifdef HAVE_LIBLLVM_SUPPORT
#include "util/llvm-c-helpers.h"
#endif
#include "srcline.h"
#include "string2.h"
#include "symbol.h"
#include "subcmd/run-command.h"
/* If addr2line doesn't return data for 1 second then timeout. */
int addr2line_timeout_ms = 1 * 1000;
bool srcline_full_filename;
char *srcline__unknown = (char *)"??:0";
static const char *srcline_dso_name(struct dso *dso)
{
const char *dso_name;
if (dso__symsrc_filename(dso))
dso_name = dso__symsrc_filename(dso);
else
dso_name = dso__long_name(dso);
if (dso_name[0] == '[')
return NULL;
if (is_perf_pid_map_name(dso_name))
return NULL;
return dso_name;
}
static int inline_list__append(struct symbol *symbol, char *srcline,
struct inline_node *node)
{
struct inline_list *ilist;
ilist = zalloc(sizeof(*ilist));
if (ilist == NULL)
return -1;
ilist->symbol = symbol;
ilist->srcline = srcline;
if (callchain_param.order == ORDER_CALLEE)
list_add_tail(&ilist->list, &node->val);
else
list_add(&ilist->list, &node->val);
return 0;
}
/* basename version that takes a const input string */
static const char *gnu_basename(const char *path)
{
const char *base = strrchr(path, '/');
return base ? base + 1 : path;
}
static char *srcline_from_fileline(const char *file, unsigned int line)
{
char *srcline;
if (!file)
return NULL;
if (!srcline_full_filename)
file = gnu_basename(file);
if (asprintf(&srcline, "%s:%u", file, line) < 0)
return NULL;
return srcline;
}
static struct symbol *new_inline_sym(struct dso *dso,
struct symbol *base_sym,
const char *funcname)
{
struct symbol *inline_sym;
char *demangled = NULL;
if (!funcname)
funcname = "??";
if (dso) {
demangled = dso__demangle_sym(dso, 0, funcname);
if (demangled)
funcname = demangled;
}
if (base_sym && strcmp(funcname, base_sym->name) == 0) {
/* reuse the real, existing symbol */
inline_sym = base_sym;
/* ensure that we don't alias an inlined symbol, which could
* lead to double frees in inline_node__delete
*/
assert(!base_sym->inlined);
} else {
/* create a fake symbol for the inline frame */
inline_sym = symbol__new(base_sym ? base_sym->start : 0,
base_sym ? (base_sym->end - base_sym->start) : 0,
base_sym ? base_sym->binding : 0,
base_sym ? base_sym->type : 0,
funcname);
if (inline_sym)
inline_sym->inlined = 1;
}
free(demangled);
return inline_sym;
}
#define MAX_INLINE_NEST 1024
#ifdef HAVE_LIBLLVM_SUPPORT
static void free_llvm_inline_frames(struct llvm_a2l_frame *inline_frames,
int num_frames)
{
if (inline_frames != NULL) {
for (int i = 0; i < num_frames; ++i) {
zfree(&inline_frames[i].filename);
zfree(&inline_frames[i].funcname);
}
zfree(&inline_frames);
}
}
static int addr2line(const char *dso_name, u64 addr,
char **file, unsigned int *line, struct dso *dso,
bool unwind_inlines, struct inline_node *node,
struct symbol *sym)
{
struct llvm_a2l_frame *inline_frames = NULL;
int num_frames = llvm_addr2line(dso_name, addr, file, line,
node && unwind_inlines, &inline_frames);
if (num_frames == 0 || !inline_frames) {
/* Error, or we didn't want inlines. */
return num_frames;
}
for (int i = 0; i < num_frames; ++i) {
struct symbol *inline_sym =
new_inline_sym(dso, sym, inline_frames[i].funcname);
char *srcline = NULL;
if (inline_frames[i].filename) {
srcline =
srcline_from_fileline(inline_frames[i].filename,
inline_frames[i].line);
}
if (inline_list__append(inline_sym, srcline, node) != 0) {
free_llvm_inline_frames(inline_frames, num_frames);
return 0;
}
}
free_llvm_inline_frames(inline_frames, num_frames);
return num_frames;
}
void dso__free_a2l(struct dso *dso __maybe_unused)
{
/* Nothing to free. */
}
#elif defined(HAVE_LIBBFD_SUPPORT)
/*
* Implement addr2line using libbfd.
*/
#define PACKAGE "perf"
#include <bfd.h>
struct a2l_data {
const char *input;
u64 addr;
bool found;
const char *filename;
const char *funcname;
unsigned line;
bfd *abfd;
asymbol **syms;
};
static int bfd_error(const char *string)
{
const char *errmsg;
errmsg = bfd_errmsg(bfd_get_error());
fflush(stdout);
if (string)
pr_debug("%s: %s\n", string, errmsg);
else
pr_debug("%s\n", errmsg);
return -1;
}
static int slurp_symtab(bfd *abfd, struct a2l_data *a2l)
{
long storage;
long symcount;
asymbol **syms;
bfd_boolean dynamic = FALSE;
if ((bfd_get_file_flags(abfd) & HAS_SYMS) == 0)
return bfd_error(bfd_get_filename(abfd));
storage = bfd_get_symtab_upper_bound(abfd);
if (storage == 0L) {
storage = bfd_get_dynamic_symtab_upper_bound(abfd);
dynamic = TRUE;
}
if (storage < 0L)
return bfd_error(bfd_get_filename(abfd));
syms = malloc(storage);
if (dynamic)
symcount = bfd_canonicalize_dynamic_symtab(abfd, syms);
else
symcount = bfd_canonicalize_symtab(abfd, syms);
if (symcount < 0) {
free(syms);
return bfd_error(bfd_get_filename(abfd));
}
a2l->syms = syms;
return 0;
}
static void find_address_in_section(bfd *abfd, asection *section, void *data)
{
bfd_vma pc, vma;
bfd_size_type size;
struct a2l_data *a2l = data;
flagword flags;
if (a2l->found)
return;
#ifdef bfd_get_section_flags
flags = bfd_get_section_flags(abfd, section);
#else
flags = bfd_section_flags(section);
#endif
if ((flags & SEC_ALLOC) == 0)
return;
pc = a2l->addr;
#ifdef bfd_get_section_vma
vma = bfd_get_section_vma(abfd, section);
#else
vma = bfd_section_vma(section);
#endif
#ifdef bfd_get_section_size
size = bfd_get_section_size(section);
#else
size = bfd_section_size(section);
#endif
if (pc < vma || pc >= vma + size)
return;
a2l->found = bfd_find_nearest_line(abfd, section, a2l->syms, pc - vma,
&a2l->filename, &a2l->funcname,
&a2l->line);
if (a2l->filename && !strlen(a2l->filename))
a2l->filename = NULL;
}
static struct a2l_data *addr2line_init(const char *path)
{
bfd *abfd;
struct a2l_data *a2l = NULL;
abfd = bfd_openr(path, NULL);
if (abfd == NULL)
return NULL;
if (!bfd_check_format(abfd, bfd_object))
goto out;
a2l = zalloc(sizeof(*a2l));
if (a2l == NULL)
goto out;
a2l->abfd = abfd;
a2l->input = strdup(path);
if (a2l->input == NULL)
goto out;
if (slurp_symtab(abfd, a2l))
goto out;
return a2l;
out:
if (a2l) {
zfree((char **)&a2l->input);
free(a2l);
}
bfd_close(abfd);
return NULL;
}
static void addr2line_cleanup(struct a2l_data *a2l)
{
if (a2l->abfd)
bfd_close(a2l->abfd);
zfree((char **)&a2l->input);
zfree(&a2l->syms);
free(a2l);
}
static int inline_list__append_dso_a2l(struct dso *dso,
struct inline_node *node,
struct symbol *sym)
{
struct a2l_data *a2l = dso__a2l(dso);
struct symbol *inline_sym = new_inline_sym(dso, sym, a2l->funcname);
char *srcline = NULL;
if (a2l->filename)
srcline = srcline_from_fileline(a2l->filename, a2l->line);
return inline_list__append(inline_sym, srcline, node);
}
static int addr2line(const char *dso_name, u64 addr,
char **file, unsigned int *line, struct dso *dso,
bool unwind_inlines, struct inline_node *node,
struct symbol *sym)
{
int ret = 0;
struct a2l_data *a2l = dso__a2l(dso);
if (!a2l) {
a2l = addr2line_init(dso_name);
dso__set_a2l(dso, a2l);
}
if (a2l == NULL) {
if (!symbol_conf.disable_add2line_warn)
pr_warning("addr2line_init failed for %s\n", dso_name);
return 0;
}
a2l->addr = addr;
a2l->found = false;
bfd_map_over_sections(a2l->abfd, find_address_in_section, a2l);
if (!a2l->found)
return 0;
if (unwind_inlines) {
int cnt = 0;
if (node && inline_list__append_dso_a2l(dso, node, sym))
return 0;
while (bfd_find_inliner_info(a2l->abfd, &a2l->filename,
&a2l->funcname, &a2l->line) &&
cnt++ < MAX_INLINE_NEST) {
if (a2l->filename && !strlen(a2l->filename))
a2l->filename = NULL;
if (node != NULL) {
if (inline_list__append_dso_a2l(dso, node, sym))
return 0;
// found at least one inline frame
ret = 1;
}
}
}
if (file) {
*file = a2l->filename ? strdup(a2l->filename) : NULL;
ret = *file ? 1 : 0;
}
if (line)
*line = a2l->line;
return ret;
}
void dso__free_a2l(struct dso *dso)
{
struct a2l_data *a2l = dso__a2l(dso);
if (!a2l)
return;
addr2line_cleanup(a2l);
dso__set_a2l(dso, NULL);
}
#else /* HAVE_LIBBFD_SUPPORT */
static int filename_split(char *filename, unsigned int *line_nr)
{
char *sep;
sep = strchr(filename, '\n');
if (sep)
*sep = '\0';
if (!strcmp(filename, "??:0"))
return 0;
sep = strchr(filename, ':');
if (sep) {
*sep++ = '\0';
*line_nr = strtoul(sep, NULL, 0);
return 1;
}
pr_debug("addr2line missing ':' in filename split\n");
return 0;
}
static void addr2line_subprocess_cleanup(struct child_process *a2l)
{
if (a2l->pid != -1) {
kill(a2l->pid, SIGKILL);
finish_command(a2l); /* ignore result, we don't care */
a2l->pid = -1;
close(a2l->in);
close(a2l->out);
}
free(a2l);
}
static struct child_process *addr2line_subprocess_init(const char *addr2line_path,
const char *binary_path)
{
const char *argv[] = {
addr2line_path ?: "addr2line",
"-e", binary_path,
"-a", "-i", "-f", NULL
};
struct child_process *a2l = zalloc(sizeof(*a2l));
int start_command_status = 0;
if (a2l == NULL) {
pr_err("Failed to allocate memory for addr2line");
return NULL;
}
a2l->pid = -1;
a2l->in = -1;
a2l->out = -1;
a2l->no_stderr = 1;
a2l->argv = argv;
start_command_status = start_command(a2l);
a2l->argv = NULL; /* it's not used after start_command; avoid dangling pointers */
if (start_command_status != 0) {
pr_warning("could not start addr2line (%s) for %s: start_command return code %d\n",
addr2line_path, binary_path, start_command_status);
addr2line_subprocess_cleanup(a2l);
return NULL;
}
return a2l;
}
enum a2l_style {
BROKEN,
GNU_BINUTILS,
LLVM,
};
static enum a2l_style addr2line_configure(struct child_process *a2l, const char *dso_name)
{
static bool cached;
static enum a2l_style style;
if (!cached) {
char buf[128];
struct io io;
int ch;
int lines;
if (write(a2l->in, ",\n", 2) != 2)
return BROKEN;
io__init(&io, a2l->out, buf, sizeof(buf));
ch = io__get_char(&io);
if (ch == ',') {
style = LLVM;
cached = true;
lines = 1;
pr_debug("Detected LLVM addr2line style\n");
} else if (ch == '0') {
style = GNU_BINUTILS;
cached = true;
lines = 3;
pr_debug("Detected binutils addr2line style\n");
} else {
if (!symbol_conf.disable_add2line_warn) {
char *output = NULL;
size_t output_len;
io__getline(&io, &output, &output_len);
pr_warning("%s %s: addr2line configuration failed\n",
__func__, dso_name);
pr_warning("\t%c%s", ch, output);
}
pr_debug("Unknown/broken addr2line style\n");
return BROKEN;
}
while (lines) {
ch = io__get_char(&io);
if (ch <= 0)
break;
if (ch == '\n')
lines--;
}
/* Ignore SIGPIPE in the event addr2line exits. */
signal(SIGPIPE, SIG_IGN);
}
return style;
}
static int read_addr2line_record(struct io *io,
enum a2l_style style,
const char *dso_name,
u64 addr,
bool first,
char **function,
char **filename,
unsigned int *line_nr)
{
/*
* Returns:
* -1 ==> error
* 0 ==> sentinel (or other ill-formed) record read
* 1 ==> a genuine record read
*/
char *line = NULL;
size_t line_len = 0;
unsigned int dummy_line_nr = 0;
int ret = -1;
if (function != NULL)
zfree(function);
if (filename != NULL)
zfree(filename);
if (line_nr != NULL)
*line_nr = 0;
/*
* Read the first line. Without an error this will be:
* - for the first line an address like 0x1234,
* - the binutils sentinel 0x0000000000000000,
* - the llvm-addr2line the sentinel ',' character,
* - the function name line for an inlined function.
*/
if (io__getline(io, &line, &line_len) < 0 || !line_len)
goto error;
pr_debug("%s %s: addr2line read address for sentinel: %s", __func__, dso_name, line);
if (style == LLVM && line_len == 2 && line[0] == ',') {
/* Found the llvm-addr2line sentinel character. */
zfree(&line);
return 0;
} else if (style == GNU_BINUTILS && (!first || addr != 0)) {
int zero_count = 0, non_zero_count = 0;
/*
* Check for binutils sentinel ignoring it for the case the
* requested address is 0.
*/
/* A given address should always start 0x. */
if (line_len >= 2 || line[0] != '0' || line[1] != 'x') {
for (size_t i = 2; i < line_len; i++) {
if (line[i] == '0')
zero_count++;
else if (line[i] != '\n')
non_zero_count++;
}
if (!non_zero_count) {
int ch;
if (first && !zero_count) {
/* Line was erroneous just '0x'. */
goto error;
}
/*
* Line was 0x0..0, the sentinel for binutils. Remove
* the function and filename lines.
*/
zfree(&line);
do {
ch = io__get_char(io);
} while (ch > 0 && ch != '\n');
do {
ch = io__get_char(io);
} while (ch > 0 && ch != '\n');
return 0;
}
}
}
/* Read the second function name line (if inline data then this is the first line). */
if (first && (io__getline(io, &line, &line_len) < 0 || !line_len))
goto error;
pr_debug("%s %s: addr2line read line: %s", __func__, dso_name, line);
if (function != NULL)
*function = strdup(strim(line));
zfree(&line);
line_len = 0;
/* Read the third filename and line number line. */
if (io__getline(io, &line, &line_len) < 0 || !line_len)
goto error;
pr_debug("%s %s: addr2line filename:number : %s", __func__, dso_name, line);
if (filename_split(line, line_nr == NULL ? &dummy_line_nr : line_nr) == 0 &&
style == GNU_BINUTILS) {
ret = 0;
goto error;
}
if (filename != NULL)
*filename = strdup(line);
zfree(&line);
line_len = 0;
return 1;
error:
free(line);
if (function != NULL)
zfree(function);
if (filename != NULL)
zfree(filename);
return ret;
}
static int inline_list__append_record(struct dso *dso,
struct inline_node *node,
struct symbol *sym,
const char *function,
const char *filename,
unsigned int line_nr)
{
struct symbol *inline_sym = new_inline_sym(dso, sym, function);
return inline_list__append(inline_sym, srcline_from_fileline(filename, line_nr), node);
}
static int addr2line(const char *dso_name, u64 addr,
char **file, unsigned int *line_nr,
struct dso *dso,
bool unwind_inlines,
struct inline_node *node,
struct symbol *sym __maybe_unused)
{
struct child_process *a2l = dso__a2l(dso);
char *record_function = NULL;
char *record_filename = NULL;
unsigned int record_line_nr = 0;
int record_status = -1;
int ret = 0;
size_t inline_count = 0;
int len;
char buf[128];
ssize_t written;
struct io io = { .eof = false };
enum a2l_style a2l_style;
if (!a2l) {
if (!filename__has_section(dso_name, ".debug_line"))
goto out;
dso__set_a2l(dso,
addr2line_subprocess_init(symbol_conf.addr2line_path, dso_name));
a2l = dso__a2l(dso);
}
if (a2l == NULL) {
if (!symbol_conf.disable_add2line_warn)
pr_warning("%s %s: addr2line_subprocess_init failed\n", __func__, dso_name);
goto out;
}
a2l_style = addr2line_configure(a2l, dso_name);
if (a2l_style == BROKEN)
goto out;
/*
* Send our request and then *deliberately* send something that can't be
* interpreted as a valid address to ask addr2line about (namely,
* ","). This causes addr2line to first write out the answer to our
* request, in an unbounded/unknown number of records, and then to write
* out the lines "0x0...0", "??" and "??:0", for GNU binutils, or ","
* for llvm-addr2line, so that we can detect when it has finished giving
* us anything useful.
*/
len = snprintf(buf, sizeof(buf), "%016"PRIx64"\n,\n", addr);
written = len > 0 ? write(a2l->in, buf, len) : -1;
if (written != len) {
if (!symbol_conf.disable_add2line_warn)
pr_warning("%s %s: could not send request\n", __func__, dso_name);
goto out;
}
io__init(&io, a2l->out, buf, sizeof(buf));
io.timeout_ms = addr2line_timeout_ms;
switch (read_addr2line_record(&io, a2l_style, dso_name, addr, /*first=*/true,
&record_function, &record_filename, &record_line_nr)) {
case -1:
if (!symbol_conf.disable_add2line_warn)
pr_warning("%s %s: could not read first record\n", __func__, dso_name);
goto out;
case 0:
/*
* The first record was invalid, so return failure, but first
* read another record, since we sent a sentinel ',' for the
* sake of detected the last inlined function. Treat this as the
* first of a record as the ',' generates a new start with GNU
* binutils, also force a non-zero address as we're no longer
* reading that record.
*/
switch (read_addr2line_record(&io, a2l_style, dso_name,
/*addr=*/1, /*first=*/true,
NULL, NULL, NULL)) {
case -1:
if (!symbol_conf.disable_add2line_warn)
pr_warning("%s %s: could not read sentinel record\n",
__func__, dso_name);
break;
case 0:
/* The sentinel as expected. */
break;
default:
if (!symbol_conf.disable_add2line_warn)
pr_warning("%s %s: unexpected record instead of sentinel",
__func__, dso_name);
break;
}
goto out;
default:
/* First record as expected. */
break;
}
if (file) {
*file = strdup(record_filename);
ret = 1;
}
if (line_nr)
*line_nr = record_line_nr;
if (unwind_inlines) {
if (node && inline_list__append_record(dso, node, sym,
record_function,
record_filename,
record_line_nr)) {
ret = 0;
goto out;
}
}
/*
* We have to read the records even if we don't care about the inline
* info. This isn't the first record and force the address to non-zero
* as we're reading records beyond the first.
*/
while ((record_status = read_addr2line_record(&io,
a2l_style,
dso_name,
/*addr=*/1,
/*first=*/false,
&record_function,
&record_filename,
&record_line_nr)) == 1) {
if (unwind_inlines && node && inline_count++ < MAX_INLINE_NEST) {
if (inline_list__append_record(dso, node, sym,
record_function,
record_filename,
record_line_nr)) {
ret = 0;
goto out;
}
ret = 1; /* found at least one inline frame */
}
}
out:
free(record_function);
free(record_filename);
if (io.eof) {
dso__set_a2l(dso, NULL);
addr2line_subprocess_cleanup(a2l);
}
return ret;
}
void dso__free_a2l(struct dso *dso)
{
struct child_process *a2l = dso__a2l(dso);
if (!a2l)
return;
addr2line_subprocess_cleanup(a2l);
dso__set_a2l(dso, NULL);
}
#endif /* HAVE_LIBBFD_SUPPORT */
static struct inline_node *addr2inlines(const char *dso_name, u64 addr,
struct dso *dso, struct symbol *sym)
{
struct inline_node *node;
node = zalloc(sizeof(*node));
if (node == NULL) {
perror("not enough memory for the inline node");
return NULL;
}
INIT_LIST_HEAD(&node->val);
node->addr = addr;
addr2line(dso_name, addr, NULL, NULL, dso, true, node, sym);
return node;
}
/*
* Number of addr2line failures (without success) before disabling it for that
* dso.
*/
#define A2L_FAIL_LIMIT 123
char *__get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
bool show_sym, bool show_addr, bool unwind_inlines,
u64 ip)
{
char *file = NULL;
unsigned line = 0;
char *srcline;
const char *dso_name;
if (!dso__has_srcline(dso))
goto out;
dso_name = srcline_dso_name(dso);
if (dso_name == NULL)
goto out_err;
if (!addr2line(dso_name, addr, &file, &line, dso,
unwind_inlines, NULL, sym))
goto out_err;
srcline = srcline_from_fileline(file, line);
free(file);
if (!srcline)
goto out_err;
dso__set_a2l_fails(dso, 0);
return srcline;
out_err:
dso__set_a2l_fails(dso, dso__a2l_fails(dso) + 1);
if (dso__a2l_fails(dso) > A2L_FAIL_LIMIT) {
dso__set_has_srcline(dso, false);
dso__free_a2l(dso);
}
out:
if (!show_addr)
return (show_sym && sym) ?
strndup(sym->name, sym->namelen) : SRCLINE_UNKNOWN;
if (sym) {
if (asprintf(&srcline, "%s+%" PRIu64, show_sym ? sym->name : "",
ip - sym->start) < 0)
return SRCLINE_UNKNOWN;
} else if (asprintf(&srcline, "%s[%" PRIx64 "]", dso__short_name(dso), addr) < 0)
return SRCLINE_UNKNOWN;
return srcline;
}
/* Returns filename and fills in line number in line */
char *get_srcline_split(struct dso *dso, u64 addr, unsigned *line)
{
char *file = NULL;
const char *dso_name;
if (!dso__has_srcline(dso))
return NULL;
dso_name = srcline_dso_name(dso);
if (dso_name == NULL)
goto out_err;
if (!addr2line(dso_name, addr, &file, line, dso, true, NULL, NULL))
goto out_err;
dso__set_a2l_fails(dso, 0);
return file;
out_err:
dso__set_a2l_fails(dso, dso__a2l_fails(dso) + 1);
if (dso__a2l_fails(dso) > A2L_FAIL_LIMIT) {
dso__set_has_srcline(dso, false);
dso__free_a2l(dso);
}
return NULL;
}
void zfree_srcline(char **srcline)
{
if (*srcline == NULL)
return;
if (*srcline != SRCLINE_UNKNOWN)
free(*srcline);
*srcline = NULL;
}
char *get_srcline(struct dso *dso, u64 addr, struct symbol *sym,
bool show_sym, bool show_addr, u64 ip)
{
return __get_srcline(dso, addr, sym, show_sym, show_addr, false, ip);
}
struct srcline_node {
u64 addr;
char *srcline;
struct rb_node rb_node;
};
void srcline__tree_insert(struct rb_root_cached *tree, u64 addr, char *srcline)
{
struct rb_node **p = &tree->rb_root.rb_node;
struct rb_node *parent = NULL;
struct srcline_node *i, *node;
bool leftmost = true;
node = zalloc(sizeof(struct srcline_node));
if (!node) {
perror("not enough memory for the srcline node");
return;
}
node->addr = addr;
node->srcline = srcline;
while (*p != NULL) {
parent = *p;
i = rb_entry(parent, struct srcline_node, rb_node);
if (addr < i->addr)
p = &(*p)->rb_left;
else {
p = &(*p)->rb_right;
leftmost = false;
}
}
rb_link_node(&node->rb_node, parent, p);
rb_insert_color_cached(&node->rb_node, tree, leftmost);
}
char *srcline__tree_find(struct rb_root_cached *tree, u64 addr)
{
struct rb_node *n = tree->rb_root.rb_node;
while (n) {
struct srcline_node *i = rb_entry(n, struct srcline_node,
rb_node);
if (addr < i->addr)
n = n->rb_left;
else if (addr > i->addr)
n = n->rb_right;
else
return i->srcline;
}
return NULL;
}
void srcline__tree_delete(struct rb_root_cached *tree)
{
struct srcline_node *pos;
struct rb_node *next = rb_first_cached(tree);
while (next) {
pos = rb_entry(next, struct srcline_node, rb_node);
next = rb_next(&pos->rb_node);
rb_erase_cached(&pos->rb_node, tree);
zfree_srcline(&pos->srcline);
zfree(&pos);
}
}
struct inline_node *dso__parse_addr_inlines(struct dso *dso, u64 addr,
struct symbol *sym)
{
const char *dso_name;
dso_name = srcline_dso_name(dso);
if (dso_name == NULL)
return NULL;
return addr2inlines(dso_name, addr, dso, sym);
}
void inline_node__delete(struct inline_node *node)
{
struct inline_list *ilist, *tmp;
list_for_each_entry_safe(ilist, tmp, &node->val, list) {
list_del_init(&ilist->list);
zfree_srcline(&ilist->srcline);
/* only the inlined symbols are owned by the list */
if (ilist->symbol && ilist->symbol->inlined)
symbol__delete(ilist->symbol);
free(ilist);
}
free(node);
}
void inlines__tree_insert(struct rb_root_cached *tree,
struct inline_node *inlines)
{
struct rb_node **p = &tree->rb_root.rb_node;
struct rb_node *parent = NULL;
const u64 addr = inlines->addr;
struct inline_node *i;
bool leftmost = true;
while (*p != NULL) {
parent = *p;
i = rb_entry(parent, struct inline_node, rb_node);
if (addr < i->addr)
p = &(*p)->rb_left;
else {
p = &(*p)->rb_right;
leftmost = false;
}
}
rb_link_node(&inlines->rb_node, parent, p);
rb_insert_color_cached(&inlines->rb_node, tree, leftmost);
}
struct inline_node *inlines__tree_find(struct rb_root_cached *tree, u64 addr)
{
struct rb_node *n = tree->rb_root.rb_node;
while (n) {
struct inline_node *i = rb_entry(n, struct inline_node,
rb_node);
if (addr < i->addr)
n = n->rb_left;
else if (addr > i->addr)
n = n->rb_right;
else
return i;
}
return NULL;
}
void inlines__tree_delete(struct rb_root_cached *tree)
{
struct inline_node *pos;
struct rb_node *next = rb_first_cached(tree);
while (next) {
pos = rb_entry(next, struct inline_node, rb_node);
next = rb_next(&pos->rb_node);
rb_erase_cached(&pos->rb_node, tree);
inline_node__delete(pos);
}
}
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