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-rw-r--r--tools/perf/util/annotate.c307
1 files changed, 189 insertions, 118 deletions
diff --git a/tools/perf/util/annotate.c b/tools/perf/util/annotate.c
index e42bf572358c..f5e77ed237e8 100644
--- a/tools/perf/util/annotate.c
+++ b/tools/perf/util/annotate.c
@@ -23,7 +23,7 @@
#include "dso.h"
#include "env.h"
#include "map.h"
-#include "map_groups.h"
+#include "maps.h"
#include "symbol.h"
#include "srcline.h"
#include "units.h"
@@ -43,6 +43,7 @@
#include <linux/string.h>
#include <bpf/libbpf.h>
#include <subcmd/parse-options.h>
+#include <subcmd/run-command.h>
/* FIXME: For the HE_COLORSET */
#include "ui/browser.h"
@@ -242,7 +243,7 @@ static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_s
char *endptr, *tok, *name;
struct map *map = ms->map;
struct addr_map_symbol target = {
- .map = map,
+ .ms = { .map = map, },
};
ops->target.addr = strtoull(ops->raw, &endptr, 16);
@@ -270,9 +271,9 @@ static int call__parse(struct arch *arch, struct ins_operands *ops, struct map_s
find_target:
target.addr = map__objdump_2mem(map, ops->target.addr);
- if (map_groups__find_ams(&target) == 0 &&
- map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr)
- ops->target.sym = target.sym;
+ if (maps__find_ams(ms->maps, &target) == 0 &&
+ map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
+ ops->target.sym = target.ms.sym;
return 0;
@@ -331,7 +332,7 @@ static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_s
struct map *map = ms->map;
struct symbol *sym = ms->sym;
struct addr_map_symbol target = {
- .map = map,
+ .ms = { .map = map, },
};
const char *c = strchr(ops->raw, ',');
u64 start, end;
@@ -390,9 +391,9 @@ static int jump__parse(struct arch *arch, struct ins_operands *ops, struct map_s
* Actual navigation will come next, with further understanding of how
* the symbol searching and disassembly should be done.
*/
- if (map_groups__find_ams(&target) == 0 &&
- map__rip_2objdump(target.map, map->map_ip(target.map, target.addr)) == ops->target.addr)
- ops->target.sym = target.sym;
+ if (maps__find_ams(ms->maps, &target) == 0 &&
+ map__rip_2objdump(target.ms.map, map->map_ip(target.ms.map, target.addr)) == ops->target.addr)
+ ops->target.sym = target.ms.sym;
if (!ops->target.outside) {
ops->target.offset = target.addr - start;
@@ -853,6 +854,10 @@ static int __symbol__account_cycles(struct cyc_hist *ch,
ch[offset].start < start)
return 0;
}
+
+ if (ch[offset].num < NUM_SPARKS)
+ ch[offset].cycles_spark[ch[offset].num] = cycles;
+
ch[offset].have_start = have_start;
ch[offset].start = start;
ch[offset].cycles += cycles;
@@ -860,14 +865,15 @@ static int __symbol__account_cycles(struct cyc_hist *ch,
return 0;
}
-static int __symbol__inc_addr_samples(struct symbol *sym, struct map *map,
+static int __symbol__inc_addr_samples(struct map_symbol *ms,
struct annotated_source *src, int evidx, u64 addr,
struct perf_sample *sample)
{
+ struct symbol *sym = ms->sym;
unsigned offset;
struct sym_hist *h;
- pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, map->unmap_ip(map, addr));
+ pr_debug3("%s: addr=%#" PRIx64 "\n", __func__, ms->map->unmap_ip(ms->map, addr));
if ((addr < sym->start || addr >= sym->end) &&
(addr != sym->end || sym->start != sym->end)) {
@@ -934,17 +940,17 @@ alloc_histograms:
return notes->src;
}
-static int symbol__inc_addr_samples(struct symbol *sym, struct map *map,
+static int symbol__inc_addr_samples(struct map_symbol *ms,
struct evsel *evsel, u64 addr,
struct perf_sample *sample)
{
+ struct symbol *sym = ms->sym;
struct annotated_source *src;
if (sym == NULL)
return 0;
src = symbol__hists(sym, evsel->evlist->core.nr_entries);
- return (src) ? __symbol__inc_addr_samples(sym, map, src, evsel->idx,
- addr, sample) : 0;
+ return src ? __symbol__inc_addr_samples(ms, src, evsel->idx, addr, sample) : 0;
}
static int symbol__account_cycles(u64 addr, u64 start,
@@ -992,17 +998,17 @@ int addr_map_symbol__account_cycles(struct addr_map_symbol *ams,
* it starts on the function start.
*/
if (start &&
- (start->sym == ams->sym ||
- (ams->sym &&
- start->addr == ams->sym->start + ams->map->start)))
+ (start->ms.sym == ams->ms.sym ||
+ (ams->ms.sym &&
+ start->addr == ams->ms.sym->start + ams->ms.map->start)))
saddr = start->al_addr;
if (saddr == 0)
pr_debug2("BB with bad start: addr %"PRIx64" start %"PRIx64" sym %"PRIx64" saddr %"PRIx64"\n",
ams->addr,
start ? start->addr : 0,
- ams->sym ? ams->sym->start + ams->map->start : 0,
+ ams->ms.sym ? ams->ms.sym->start + ams->ms.map->start : 0,
saddr);
- err = symbol__account_cycles(ams->al_addr, saddr, ams->sym, cycles);
+ err = symbol__account_cycles(ams->al_addr, saddr, ams->ms.sym, cycles);
if (err)
pr_debug2("account_cycles failed %d\n", err);
return err;
@@ -1088,13 +1094,13 @@ void annotation__compute_ipc(struct annotation *notes, size_t size)
int addr_map_symbol__inc_samples(struct addr_map_symbol *ams, struct perf_sample *sample,
struct evsel *evsel)
{
- return symbol__inc_addr_samples(ams->sym, ams->map, evsel, ams->al_addr, sample);
+ return symbol__inc_addr_samples(&ams->ms, evsel, ams->al_addr, sample);
}
int hist_entry__inc_addr_samples(struct hist_entry *he, struct perf_sample *sample,
struct evsel *evsel, u64 ip)
{
- return symbol__inc_addr_samples(he->ms.sym, he->ms.map, evsel, ip, sample);
+ return symbol__inc_addr_samples(&he->ms, evsel, ip, sample);
}
static void disasm_line__init_ins(struct disasm_line *dl, struct arch *arch, struct map_symbol *ms)
@@ -1485,44 +1491,26 @@ annotation_line__print(struct annotation_line *al, struct symbol *sym, u64 start
* means that it's not a disassembly line so should be treated differently.
* The ops.raw part will be parsed further according to type of the instruction.
*/
-static int symbol__parse_objdump_line(struct symbol *sym, FILE *file,
+static int symbol__parse_objdump_line(struct symbol *sym,
struct annotate_args *args,
- int *line_nr)
+ char *parsed_line, int *line_nr)
{
struct map *map = args->ms.map;
struct annotation *notes = symbol__annotation(sym);
struct disasm_line *dl;
- char *line = NULL, *parsed_line, *tmp, *tmp2;
- size_t line_len;
+ char *tmp;
s64 line_ip, offset = -1;
regmatch_t match[2];
- if (getline(&line, &line_len, file) < 0)
- return -1;
-
- if (!line)
- return -1;
-
- line_ip = -1;
- parsed_line = strim(line);
-
/* /filename:linenr ? Save line number and ignore. */
if (regexec(&file_lineno, parsed_line, 2, match, 0) == 0) {
*line_nr = atoi(parsed_line + match[1].rm_so);
return 0;
}
- tmp = skip_spaces(parsed_line);
- if (*tmp) {
- /*
- * Parse hexa addresses followed by ':'
- */
- line_ip = strtoull(tmp, &tmp2, 16);
- if (*tmp2 != ':' || tmp == tmp2 || tmp2[1] == '\0')
- line_ip = -1;
- }
-
- if (line_ip != -1) {
+ /* Process hex address followed by ':'. */
+ line_ip = strtoull(parsed_line, &tmp, 16);
+ if (parsed_line != tmp && tmp[0] == ':' && tmp[1] != '\0') {
u64 start = map__rip_2objdump(map, sym->start),
end = map__rip_2objdump(map, sym->end);
@@ -1530,7 +1518,7 @@ static int symbol__parse_objdump_line(struct symbol *sym, FILE *file,
if ((u64)line_ip < start || (u64)line_ip >= end)
offset = -1;
else
- parsed_line = tmp2 + 1;
+ parsed_line = tmp + 1;
}
args->offset = offset;
@@ -1539,7 +1527,6 @@ static int symbol__parse_objdump_line(struct symbol *sym, FILE *file,
args->ms.sym = sym;
dl = disasm_line__new(args);
- free(line);
(*line_nr)++;
if (dl == NULL)
@@ -1554,13 +1541,13 @@ static int symbol__parse_objdump_line(struct symbol *sym, FILE *file,
/* kcore has no symbols, so add the call target symbol */
if (dl->ins.ops && ins__is_call(&dl->ins) && !dl->ops.target.sym) {
struct addr_map_symbol target = {
- .map = map,
.addr = dl->ops.target.addr,
+ .ms = { .map = map, },
};
- if (!map_groups__find_ams(&target) &&
- target.sym->start == target.al_addr)
- dl->ops.target.sym = target.sym;
+ if (!maps__find_ams(args->ms.maps, &target) &&
+ target.ms.sym->start == target.al_addr)
+ dl->ops.target.sym = target.ms.sym;
}
annotation_line__add(&dl->al, &notes->src->source);
@@ -1597,10 +1584,9 @@ static void delete_last_nop(struct symbol *sym)
}
}
-int symbol__strerror_disassemble(struct symbol *sym __maybe_unused, struct map *map,
- int errnum, char *buf, size_t buflen)
+int symbol__strerror_disassemble(struct map_symbol *ms, int errnum, char *buf, size_t buflen)
{
- struct dso *dso = map->dso;
+ struct dso *dso = ms->map->dso;
BUG_ON(buflen == 0);
@@ -1857,6 +1843,67 @@ static int symbol__disassemble_bpf(struct symbol *sym __maybe_unused,
}
#endif // defined(HAVE_LIBBFD_SUPPORT) && defined(HAVE_LIBBPF_SUPPORT)
+/*
+ * Possibly create a new version of line with tabs expanded. Returns the
+ * existing or new line, storage is updated if a new line is allocated. If
+ * allocation fails then NULL is returned.
+ */
+static char *expand_tabs(char *line, char **storage, size_t *storage_len)
+{
+ size_t i, src, dst, len, new_storage_len, num_tabs;
+ char *new_line;
+ size_t line_len = strlen(line);
+
+ for (num_tabs = 0, i = 0; i < line_len; i++)
+ if (line[i] == '\t')
+ num_tabs++;
+
+ if (num_tabs == 0)
+ return line;
+
+ /*
+ * Space for the line and '\0', less the leading and trailing
+ * spaces. Each tab may introduce 7 additional spaces.
+ */
+ new_storage_len = line_len + 1 + (num_tabs * 7);
+
+ new_line = malloc(new_storage_len);
+ if (new_line == NULL) {
+ pr_err("Failure allocating memory for tab expansion\n");
+ return NULL;
+ }
+
+ /*
+ * Copy regions starting at src and expand tabs. If there are two
+ * adjacent tabs then 'src == i', the memcpy is of size 0 and the spaces
+ * are inserted.
+ */
+ for (i = 0, src = 0, dst = 0; i < line_len && num_tabs; i++) {
+ if (line[i] == '\t') {
+ len = i - src;
+ memcpy(&new_line[dst], &line[src], len);
+ dst += len;
+ new_line[dst++] = ' ';
+ while (dst % 8 != 0)
+ new_line[dst++] = ' ';
+ src = i + 1;
+ num_tabs--;
+ }
+ }
+
+ /* Expand the last region. */
+ len = line_len - src;
+ memcpy(&new_line[dst], &line[src], len);
+ dst += len;
+ new_line[dst] = '\0';
+
+ free(*storage);
+ *storage = new_line;
+ *storage_len = new_storage_len;
+ return new_line;
+
+}
+
static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
{
struct annotation_options *opts = args->options;
@@ -1868,10 +1915,19 @@ static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
struct kcore_extract kce;
bool delete_extract = false;
bool decomp = false;
- int stdout_fd[2];
int lineno = 0;
int nline;
- pid_t pid;
+ char *line;
+ size_t line_len;
+ const char *objdump_argv[] = {
+ "/bin/sh",
+ "-c",
+ NULL, /* Will be the objdump command to run. */
+ "--",
+ NULL, /* Will be the symfs path. */
+ NULL,
+ };
+ struct child_process objdump_process;
int err = dso__disassemble_filename(dso, symfs_filename, sizeof(symfs_filename));
if (err)
@@ -1901,7 +1957,7 @@ static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
if (dso__decompress_kmodule_path(dso, symfs_filename,
tmp, sizeof(tmp)) < 0)
- goto out;
+ return -1;
decomp = true;
strcpy(symfs_filename, tmp);
@@ -1910,13 +1966,13 @@ static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
err = asprintf(&command,
"%s %s%s --start-address=0x%016" PRIx64
" --stop-address=0x%016" PRIx64
- " -l -d %s %s -C \"$1\" 2>/dev/null|grep -v \"$1:\"|expand",
+ " -l -d %s %s -C \"$1\"",
opts->objdump_path ?: "objdump",
opts->disassembler_style ? "-M " : "",
opts->disassembler_style ?: "",
map__rip_2objdump(map, sym->start),
map__rip_2objdump(map, sym->end),
- opts->show_asm_raw ? "" : "--no-show-raw",
+ opts->show_asm_raw ? "" : "--no-show-raw-insn",
opts->annotate_src ? "-S" : "");
if (err < 0) {
@@ -1926,55 +1982,73 @@ static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
pr_debug("Executing: %s\n", command);
- err = -1;
- if (pipe(stdout_fd) < 0) {
- pr_err("Failure creating the pipe to run %s\n", command);
- goto out_free_command;
- }
-
- pid = fork();
- if (pid < 0) {
- pr_err("Failure forking to run %s\n", command);
- goto out_close_stdout;
- }
+ objdump_argv[2] = command;
+ objdump_argv[4] = symfs_filename;
- if (pid == 0) {
- close(stdout_fd[0]);
- dup2(stdout_fd[1], 1);
- close(stdout_fd[1]);
- execl("/bin/sh", "sh", "-c", command, "--", symfs_filename,
- NULL);
- perror(command);
- exit(-1);
+ /* Create a pipe to read from for stdout */
+ memset(&objdump_process, 0, sizeof(objdump_process));
+ objdump_process.argv = objdump_argv;
+ objdump_process.out = -1;
+ if (start_command(&objdump_process)) {
+ pr_err("Failure starting to run %s\n", command);
+ err = -1;
+ goto out_free_command;
}
- close(stdout_fd[1]);
-
- file = fdopen(stdout_fd[0], "r");
+ file = fdopen(objdump_process.out, "r");
if (!file) {
pr_err("Failure creating FILE stream for %s\n", command);
/*
* If we were using debug info should retry with
* original binary.
*/
- goto out_free_command;
+ err = -1;
+ goto out_close_stdout;
}
+ /* Storage for getline. */
+ line = NULL;
+ line_len = 0;
+
nline = 0;
while (!feof(file)) {
+ const char *match;
+ char *expanded_line;
+
+ if (getline(&line, &line_len, file) < 0 || !line)
+ break;
+
+ /* Skip lines containing "filename:" */
+ match = strstr(line, symfs_filename);
+ if (match && match[strlen(symfs_filename)] == ':')
+ continue;
+
+ expanded_line = strim(line);
+ expanded_line = expand_tabs(expanded_line, &line, &line_len);
+ if (!expanded_line)
+ break;
+
/*
* The source code line number (lineno) needs to be kept in
* across calls to symbol__parse_objdump_line(), so that it
* can associate it with the instructions till the next one.
* See disasm_line__new() and struct disasm_line::line_nr.
*/
- if (symbol__parse_objdump_line(sym, file, args, &lineno) < 0)
+ if (symbol__parse_objdump_line(sym, args, expanded_line,
+ &lineno) < 0)
break;
nline++;
}
+ free(line);
+
+ err = finish_command(&objdump_process);
+ if (err)
+ pr_err("Error running %s\n", command);
- if (nline == 0)
+ if (nline == 0) {
+ err = -1;
pr_err("No output from %s\n", command);
+ }
/*
* kallsyms does not have symbol sizes so there may a nop at the end.
@@ -1984,23 +2058,21 @@ static int symbol__disassemble(struct symbol *sym, struct annotate_args *args)
delete_last_nop(sym);
fclose(file);
- err = 0;
+
+out_close_stdout:
+ close(objdump_process.out);
+
out_free_command:
free(command);
-out_remove_tmp:
- close(stdout_fd[0]);
+out_remove_tmp:
if (decomp)
unlink(symfs_filename);
if (delete_extract)
kcore_extract__delete(&kce);
-out:
- return err;
-out_close_stdout:
- close(stdout_fd[1]);
- goto out_free_command;
+ return err;
}
static void calc_percent(struct sym_hist *sym_hist,
@@ -2071,11 +2143,10 @@ void symbol__calc_percent(struct symbol *sym, struct evsel *evsel)
annotation__calc_percent(notes, evsel, symbol__size(sym));
}
-int symbol__annotate(struct symbol *sym, struct map *map,
- struct evsel *evsel, size_t privsize,
- struct annotation_options *options,
- struct arch **parch)
+int symbol__annotate(struct map_symbol *ms, struct evsel *evsel, size_t privsize,
+ struct annotation_options *options, struct arch **parch)
{
+ struct symbol *sym = ms->sym;
struct annotation *notes = symbol__annotation(sym);
struct annotate_args args = {
.privsize = privsize,
@@ -2105,9 +2176,8 @@ int symbol__annotate(struct symbol *sym, struct map *map,
}
}
- args.ms.map = map;
- args.ms.sym = sym;
- notes->start = map__rip_2objdump(map, sym->start);
+ args.ms = *ms;
+ notes->start = map__rip_2objdump(ms->map, sym->start);
return symbol__disassemble(sym, &args);
}
@@ -2263,10 +2333,11 @@ static int annotated_source__addr_fmt_width(struct list_head *lines, u64 start)
return 0;
}
-int symbol__annotate_printf(struct symbol *sym, struct map *map,
- struct evsel *evsel,
+int symbol__annotate_printf(struct map_symbol *ms, struct evsel *evsel,
struct annotation_options *opts)
{
+ struct map *map = ms->map;
+ struct symbol *sym = ms->sym;
struct dso *dso = map->dso;
char *filename;
const char *d_filename;
@@ -2670,30 +2741,29 @@ static void annotation__calc_lines(struct annotation *notes, struct map *map,
resort_source_line(root, &tmp_root);
}
-static void symbol__calc_lines(struct symbol *sym, struct map *map,
- struct rb_root *root,
+static void symbol__calc_lines(struct map_symbol *ms, struct rb_root *root,
struct annotation_options *opts)
{
- struct annotation *notes = symbol__annotation(sym);
+ struct annotation *notes = symbol__annotation(ms->sym);
- annotation__calc_lines(notes, map, root, opts);
+ annotation__calc_lines(notes, ms->map, root, opts);
}
-int symbol__tty_annotate2(struct symbol *sym, struct map *map,
- struct evsel *evsel,
+int symbol__tty_annotate2(struct map_symbol *ms, struct evsel *evsel,
struct annotation_options *opts)
{
- struct dso *dso = map->dso;
+ struct dso *dso = ms->map->dso;
+ struct symbol *sym = ms->sym;
struct rb_root source_line = RB_ROOT;
struct hists *hists = evsel__hists(evsel);
char buf[1024];
- if (symbol__annotate2(sym, map, evsel, opts, NULL) < 0)
+ if (symbol__annotate2(ms, evsel, opts, NULL) < 0)
return -1;
if (opts->print_lines) {
srcline_full_filename = opts->full_path;
- symbol__calc_lines(sym, map, &source_line, opts);
+ symbol__calc_lines(ms, &source_line, opts);
print_summary(&source_line, dso->long_name);
}
@@ -2707,25 +2777,25 @@ int symbol__tty_annotate2(struct symbol *sym, struct map *map,
return 0;
}
-int symbol__tty_annotate(struct symbol *sym, struct map *map,
- struct evsel *evsel,
+int symbol__tty_annotate(struct map_symbol *ms, struct evsel *evsel,
struct annotation_options *opts)
{
- struct dso *dso = map->dso;
+ struct dso *dso = ms->map->dso;
+ struct symbol *sym = ms->sym;
struct rb_root source_line = RB_ROOT;
- if (symbol__annotate(sym, map, evsel, 0, opts, NULL) < 0)
+ if (symbol__annotate(ms, evsel, 0, opts, NULL) < 0)
return -1;
symbol__calc_percent(sym, evsel);
if (opts->print_lines) {
srcline_full_filename = opts->full_path;
- symbol__calc_lines(sym, map, &source_line, opts);
+ symbol__calc_lines(ms, &source_line, opts);
print_summary(&source_line, dso->long_name);
}
- symbol__annotate_printf(sym, map, evsel, opts);
+ symbol__annotate_printf(ms, evsel, opts);
annotated_source__purge(symbol__annotation(sym)->src);
@@ -2979,9 +3049,10 @@ void annotation_line__write(struct annotation_line *al, struct annotation *notes
wops->write_graph);
}
-int symbol__annotate2(struct symbol *sym, struct map *map, struct evsel *evsel,
+int symbol__annotate2(struct map_symbol *ms, struct evsel *evsel,
struct annotation_options *options, struct arch **parch)
{
+ struct symbol *sym = ms->sym;
struct annotation *notes = symbol__annotation(sym);
size_t size = symbol__size(sym);
int nr_pcnt = 1, err;
@@ -2993,7 +3064,7 @@ int symbol__annotate2(struct symbol *sym, struct map *map, struct evsel *evsel,
if (perf_evsel__is_group_event(evsel))
nr_pcnt = evsel->core.nr_members;
- err = symbol__annotate(sym, map, evsel, 0, options, parch);
+ err = symbol__annotate(ms, evsel, 0, options, parch);
if (err)
goto out_free_offsets;
generated by cgit v1.2.3-70-g09d2 (git 2.51.1) at 2025-11-04 09:00:28 +0000