2 * probe-event.c : perf-probe definition to probe_events format converter
4 * Written by Masami Hiramatsu <mhiramat@redhat.com>
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation; either version 2 of the License, or
9 * (at your option) any later version.
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
22 #include <sys/utsname.h>
23 #include <sys/types.h>
43 #include <api/fs/debugfs.h>
44 #include "trace-event.h" /* For __maybe_unused */
45 #include "probe-event.h"
46 #include "probe-finder.h"
49 #define MAX_CMDLEN 256
50 #define PERFPROBE_GROUP "probe"
52 bool probe_event_dry_run; /* Dry run flag */
54 #define semantic_error(msg ...) pr_err("Semantic error :" msg)
56 /* If there is no space to write, returns -E2BIG. */
57 static int e_snprintf(char *str, size_t size, const char *format, ...)
58 __attribute__((format(printf, 3, 4)));
60 static int e_snprintf(char *str, size_t size, const char *format, ...)
65 ret = vsnprintf(str, size, format, ap);
72 static char *synthesize_perf_probe_point(struct perf_probe_point *pp);
73 static int convert_name_to_addr(struct perf_probe_event *pev,
75 static void clear_probe_trace_event(struct probe_trace_event *tev);
76 static struct machine *host_machine;
78 /* Initialize symbol maps and path of vmlinux/modules */
79 static int init_symbol_maps(bool user_only)
83 symbol_conf.sort_by_name = true;
86 pr_debug("Failed to init symbol map.\n");
90 if (host_machine || user_only) /* already initialized */
93 if (symbol_conf.vmlinux_name)
94 pr_debug("Use vmlinux: %s\n", symbol_conf.vmlinux_name);
96 host_machine = machine__new_host();
98 pr_debug("machine__new_host() failed.\n");
104 pr_warning("Failed to init vmlinux path.\n");
108 static void exit_symbol_maps(void)
111 machine__delete(host_machine);
117 static struct symbol *__find_kernel_function_by_name(const char *name,
120 return machine__find_kernel_function_by_name(host_machine, name, mapp,
124 static struct map *kernel_get_module_map(const char *module)
127 struct map_groups *grp = &host_machine->kmaps;
129 /* A file path -- this is an offline module */
130 if (module && strchr(module, '/'))
131 return machine__new_module(host_machine, 0, module);
136 for (nd = rb_first(&grp->maps[MAP__FUNCTION]); nd; nd = rb_next(nd)) {
137 struct map *pos = rb_entry(nd, struct map, rb_node);
138 if (strncmp(pos->dso->short_name + 1, module,
139 pos->dso->short_name_len - 2) == 0) {
146 static struct dso *kernel_get_module_dso(const char *module)
150 const char *vmlinux_name;
153 list_for_each_entry(dso, &host_machine->kernel_dsos, node) {
154 if (strncmp(dso->short_name + 1, module,
155 dso->short_name_len - 2) == 0)
158 pr_debug("Failed to find module %s.\n", module);
162 map = host_machine->vmlinux_maps[MAP__FUNCTION];
165 vmlinux_name = symbol_conf.vmlinux_name;
167 if (dso__load_vmlinux(dso, map, vmlinux_name, false, NULL) <= 0)
170 if (dso__load_vmlinux_path(dso, map, NULL) <= 0) {
171 pr_debug("Failed to load kernel map.\n");
179 const char *kernel_get_module_path(const char *module)
181 struct dso *dso = kernel_get_module_dso(module);
182 return (dso) ? dso->long_name : NULL;
185 static int convert_exec_to_group(const char *exec, char **result)
187 char *ptr1, *ptr2, *exec_copy;
191 exec_copy = strdup(exec);
195 ptr1 = basename(exec_copy);
201 ptr2 = strpbrk(ptr1, "-._");
204 ret = e_snprintf(buf, 64, "%s_%s", PERFPROBE_GROUP, ptr1);
208 *result = strdup(buf);
209 ret = *result ? 0 : -ENOMEM;
216 static int convert_to_perf_probe_point(struct probe_trace_point *tp,
217 struct perf_probe_point *pp)
219 pp->function = strdup(tp->symbol);
221 if (pp->function == NULL)
224 pp->offset = tp->offset;
225 pp->retprobe = tp->retprobe;
230 #ifdef HAVE_DWARF_SUPPORT
231 /* Open new debuginfo of given module */
232 static struct debuginfo *open_debuginfo(const char *module)
236 /* A file path -- this is an offline module */
237 if (module && strchr(module, '/'))
240 path = kernel_get_module_path(module);
243 pr_err("Failed to find path of %s module.\n",
248 return debuginfo__new(path);
252 * Convert trace point to probe point with debuginfo
253 * Currently only handles kprobes.
255 static int kprobe_convert_to_perf_probe(struct probe_trace_point *tp,
256 struct perf_probe_point *pp)
262 struct debuginfo *dinfo;
264 sym = __find_kernel_function_by_name(tp->symbol, &map);
266 addr = map->unmap_ip(map, sym->start + tp->offset);
267 pr_debug("try to find %s+%ld@%" PRIx64 "\n", tp->symbol,
270 dinfo = debuginfo__new_online_kernel(addr);
272 ret = debuginfo__find_probe_point(dinfo,
273 (unsigned long)addr, pp);
274 debuginfo__delete(dinfo);
276 pr_debug("Failed to open debuginfo at 0x%" PRIx64 "\n",
282 pr_debug("Failed to find corresponding probes from "
283 "debuginfo. Use kprobe event information.\n");
284 return convert_to_perf_probe_point(tp, pp);
286 pp->retprobe = tp->retprobe;
291 static int get_text_start_address(const char *exec, unsigned long *address)
296 int fd, ret = -ENOENT;
298 fd = open(exec, O_RDONLY);
302 elf = elf_begin(fd, PERF_ELF_C_READ_MMAP, NULL);
306 if (gelf_getehdr(elf, &ehdr) == NULL)
309 if (!elf_section_by_name(elf, &ehdr, &shdr, ".text", NULL))
312 *address = shdr.sh_addr - shdr.sh_offset;
319 static int add_exec_to_probe_trace_events(struct probe_trace_event *tevs,
320 int ntevs, const char *exec)
323 unsigned long offset, stext = 0;
329 ret = get_text_start_address(exec, &stext);
333 for (i = 0; i < ntevs && ret >= 0; i++) {
334 /* point.address is the addres of point.symbol + point.offset */
335 offset = tevs[i].point.address - stext;
336 tevs[i].point.offset = 0;
337 zfree(&tevs[i].point.symbol);
338 ret = e_snprintf(buf, 32, "0x%lx", offset);
341 tevs[i].point.module = strdup(exec);
342 tevs[i].point.symbol = strdup(buf);
343 if (!tevs[i].point.symbol || !tevs[i].point.module) {
347 tevs[i].uprobes = true;
353 static int add_module_to_probe_trace_events(struct probe_trace_event *tevs,
354 int ntevs, const char *module)
362 tmp = strrchr(module, '/');
364 /* This is a module path -- get the module name */
365 module = strdup(tmp + 1);
368 tmp = strchr(module, '.');
371 tmp = (char *)module; /* For free() */
374 for (i = 0; i < ntevs; i++) {
375 tevs[i].point.module = strdup(module);
376 if (!tevs[i].point.module) {
386 static void clear_probe_trace_events(struct probe_trace_event *tevs, int ntevs)
390 for (i = 0; i < ntevs; i++)
391 clear_probe_trace_event(tevs + i);
394 /* Try to find perf_probe_event with debuginfo */
395 static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
396 struct probe_trace_event **tevs,
397 int max_tevs, const char *target)
399 bool need_dwarf = perf_probe_event_need_dwarf(pev);
400 struct debuginfo *dinfo;
403 dinfo = open_debuginfo(target);
407 pr_warning("Failed to open debuginfo file.\n");
410 pr_debug("Could not open debuginfo. Try to use symbols.\n");
414 /* Searching trace events corresponding to a probe event */
415 ntevs = debuginfo__find_trace_events(dinfo, pev, tevs, max_tevs);
417 debuginfo__delete(dinfo);
419 if (ntevs > 0) { /* Succeeded to find trace events */
420 pr_debug("find %d probe_trace_events.\n", ntevs);
423 ret = add_exec_to_probe_trace_events(*tevs,
426 ret = add_module_to_probe_trace_events(*tevs,
430 clear_probe_trace_events(*tevs, ntevs);
433 return ret < 0 ? ret : ntevs;
436 if (ntevs == 0) { /* No error but failed to find probe point. */
437 pr_warning("Probe point '%s' not found.\n",
438 synthesize_perf_probe_point(&pev->point));
441 /* Error path : ntevs < 0 */
442 pr_debug("An error occurred in debuginfo analysis (%d).\n", ntevs);
443 if (ntevs == -EBADF) {
444 pr_warning("Warning: No dwarf info found in the vmlinux - "
445 "please rebuild kernel with CONFIG_DEBUG_INFO=y.\n");
447 pr_debug("Trying to use symbols.\n");
455 * Find a src file from a DWARF tag path. Prepend optional source path prefix
456 * and chop off leading directories that do not exist. Result is passed back as
457 * a newly allocated path on success.
458 * Return 0 if file was found and readable, -errno otherwise.
460 static int get_real_path(const char *raw_path, const char *comp_dir,
463 const char *prefix = symbol_conf.source_prefix;
466 if (raw_path[0] != '/' && comp_dir)
467 /* If not an absolute path, try to use comp_dir */
470 if (access(raw_path, R_OK) == 0) {
471 *new_path = strdup(raw_path);
478 *new_path = malloc((strlen(prefix) + strlen(raw_path) + 2));
483 sprintf(*new_path, "%s/%s", prefix, raw_path);
485 if (access(*new_path, R_OK) == 0)
488 if (!symbol_conf.source_prefix)
489 /* In case of searching comp_dir, don't retry */
497 raw_path = strchr(++raw_path, '/');
511 #define LINEBUF_SIZE 256
512 #define NR_ADDITIONAL_LINES 2
514 static int __show_one_line(FILE *fp, int l, bool skip, bool show_num)
516 char buf[LINEBUF_SIZE];
517 const char *color = show_num ? "" : PERF_COLOR_BLUE;
518 const char *prefix = NULL;
521 if (fgets(buf, LINEBUF_SIZE, fp) == NULL)
526 prefix = show_num ? "%7d " : " ";
527 color_fprintf(stdout, color, prefix, l);
529 color_fprintf(stdout, color, "%s", buf);
531 } while (strchr(buf, '\n') == NULL);
536 pr_warning("File read error: %s\n", strerror(errno));
542 static int _show_one_line(FILE *fp, int l, bool skip, bool show_num)
544 int rv = __show_one_line(fp, l, skip, show_num);
546 pr_warning("Source file is shorter than expected.\n");
552 #define show_one_line_with_num(f,l) _show_one_line(f,l,false,true)
553 #define show_one_line(f,l) _show_one_line(f,l,false,false)
554 #define skip_one_line(f,l) _show_one_line(f,l,true,false)
555 #define show_one_line_or_eof(f,l) __show_one_line(f,l,false,false)
558 * Show line-range always requires debuginfo to find source file and
561 static int __show_line_range(struct line_range *lr, const char *module)
565 struct debuginfo *dinfo;
570 /* Search a line range */
571 dinfo = open_debuginfo(module);
573 pr_warning("Failed to open debuginfo file.\n");
577 ret = debuginfo__find_line_range(dinfo, lr);
578 debuginfo__delete(dinfo);
580 pr_warning("Specified source line is not found.\n");
582 } else if (ret < 0) {
583 pr_warning("Debuginfo analysis failed. (%d)\n", ret);
587 /* Convert source file path */
589 ret = get_real_path(tmp, lr->comp_dir, &lr->path);
590 free(tmp); /* Free old path */
592 pr_warning("Failed to find source file. (%d)\n", ret);
599 fprintf(stdout, "<%s@%s:%d>\n", lr->function, lr->path,
600 lr->start - lr->offset);
602 fprintf(stdout, "<%s:%d>\n", lr->path, lr->start);
604 fp = fopen(lr->path, "r");
606 pr_warning("Failed to open %s: %s\n", lr->path,
610 /* Skip to starting line number */
611 while (l < lr->start) {
612 ret = skip_one_line(fp, l++);
617 intlist__for_each(ln, lr->line_list) {
618 for (; ln->i > l; l++) {
619 ret = show_one_line(fp, l - lr->offset);
623 ret = show_one_line_with_num(fp, l++ - lr->offset);
628 if (lr->end == INT_MAX)
629 lr->end = l + NR_ADDITIONAL_LINES;
630 while (l <= lr->end) {
631 ret = show_one_line_or_eof(fp, l++ - lr->offset);
640 int show_line_range(struct line_range *lr, const char *module)
644 ret = init_symbol_maps(false);
647 ret = __show_line_range(lr, module);
653 static int show_available_vars_at(struct debuginfo *dinfo,
654 struct perf_probe_event *pev,
655 int max_vls, struct strfilter *_filter,
660 struct str_node *node;
661 struct variable_list *vls = NULL, *vl;
664 buf = synthesize_perf_probe_point(&pev->point);
667 pr_debug("Searching variables at %s\n", buf);
669 ret = debuginfo__find_available_vars_at(dinfo, pev, &vls,
672 pr_err("Failed to find variables at %s (%d)\n", buf, ret);
675 /* Some variables are found */
676 fprintf(stdout, "Available variables at %s\n", buf);
677 for (i = 0; i < ret; i++) {
680 * A probe point might be converted to
681 * several trace points.
683 fprintf(stdout, "\t@<%s+%lu>\n", vl->point.symbol,
685 zfree(&vl->point.symbol);
688 strlist__for_each(node, vl->vars) {
689 var = strchr(node->s, '\t') + 1;
690 if (strfilter__compare(_filter, var)) {
691 fprintf(stdout, "\t\t%s\n", node->s);
695 strlist__delete(vl->vars);
698 fprintf(stdout, "\t\t(No matched variables)\n");
706 /* Show available variables on given probe point */
707 int show_available_vars(struct perf_probe_event *pevs, int npevs,
708 int max_vls, const char *module,
709 struct strfilter *_filter, bool externs)
712 struct debuginfo *dinfo;
714 ret = init_symbol_maps(false);
718 dinfo = open_debuginfo(module);
720 pr_warning("Failed to open debuginfo file.\n");
727 for (i = 0; i < npevs && ret >= 0; i++)
728 ret = show_available_vars_at(dinfo, &pevs[i], max_vls, _filter,
731 debuginfo__delete(dinfo);
737 #else /* !HAVE_DWARF_SUPPORT */
739 static int kprobe_convert_to_perf_probe(struct probe_trace_point *tp,
740 struct perf_probe_point *pp)
742 return convert_to_perf_probe_point(tp, pp);
745 static int try_to_find_probe_trace_events(struct perf_probe_event *pev,
746 struct probe_trace_event **tevs __maybe_unused,
747 int max_tevs __maybe_unused,
748 const char *target __maybe_unused)
750 if (perf_probe_event_need_dwarf(pev)) {
751 pr_warning("Debuginfo-analysis is not supported.\n");
758 int show_line_range(struct line_range *lr __maybe_unused,
759 const char *module __maybe_unused)
761 pr_warning("Debuginfo-analysis is not supported.\n");
765 int show_available_vars(struct perf_probe_event *pevs __maybe_unused,
766 int npevs __maybe_unused, int max_vls __maybe_unused,
767 const char *module __maybe_unused,
768 struct strfilter *filter __maybe_unused,
769 bool externs __maybe_unused)
771 pr_warning("Debuginfo-analysis is not supported.\n");
776 void line_range__clear(struct line_range *lr)
782 intlist__delete(lr->line_list);
783 memset(lr, 0, sizeof(*lr));
786 int line_range__init(struct line_range *lr)
788 memset(lr, 0, sizeof(*lr));
789 lr->line_list = intlist__new(NULL);
796 static int parse_line_num(char **ptr, int *val, const char *what)
798 const char *start = *ptr;
801 *val = strtol(*ptr, ptr, 0);
802 if (errno || *ptr == start) {
803 semantic_error("'%s' is not a valid number.\n", what);
810 * Stuff 'lr' according to the line range described by 'arg'.
811 * The line range syntax is described by:
813 * SRC[:SLN[+NUM|-ELN]]
814 * FNC[@SRC][:SLN[+NUM|-ELN]]
816 int parse_line_range_desc(const char *arg, struct line_range *lr)
818 char *range, *file, *name = strdup(arg);
827 range = strchr(name, ':');
831 err = parse_line_num(&range, &lr->start, "start line");
835 if (*range == '+' || *range == '-') {
836 const char c = *range++;
838 err = parse_line_num(&range, &lr->end, "end line");
843 lr->end += lr->start;
845 * Adjust the number of lines here.
846 * If the number of lines == 1, the
847 * the end of line should be equal to
854 pr_debug("Line range is %d to %d\n", lr->start, lr->end);
857 if (lr->start > lr->end) {
858 semantic_error("Start line must be smaller"
859 " than end line.\n");
862 if (*range != '\0') {
863 semantic_error("Tailing with invalid str '%s'.\n", range);
868 file = strchr(name, '@');
871 lr->file = strdup(++file);
872 if (lr->file == NULL) {
877 } else if (strchr(name, '.'))
888 /* Check the name is good for event/group */
889 static bool check_event_name(const char *name)
891 if (!isalpha(*name) && *name != '_')
893 while (*++name != '\0') {
894 if (!isalpha(*name) && !isdigit(*name) && *name != '_')
900 /* Parse probepoint definition. */
901 static int parse_perf_probe_point(char *arg, struct perf_probe_event *pev)
903 struct perf_probe_point *pp = &pev->point;
908 * perf probe [EVENT=]SRC[:LN|;PTN]
909 * perf probe [EVENT=]FUNC[@SRC][+OFFS|%return|:LN|;PAT]
911 * TODO:Group name support
914 ptr = strpbrk(arg, ";=@+%");
915 if (ptr && *ptr == '=') { /* Event name */
918 if (strchr(arg, ':')) {
919 semantic_error("Group name is not supported yet.\n");
922 if (!check_event_name(arg)) {
923 semantic_error("%s is bad for event name -it must "
924 "follow C symbol-naming rule.\n", arg);
927 pev->event = strdup(arg);
928 if (pev->event == NULL)
934 ptr = strpbrk(arg, ";:+@%");
944 /* Check arg is function or file and copy it */
945 if (strchr(tmp, '.')) /* File */
950 /* Parse other options */
954 if (c == ';') { /* Lazy pattern must be the last part */
955 pp->lazy_line = strdup(arg);
956 if (pp->lazy_line == NULL)
960 ptr = strpbrk(arg, ";:+@%");
966 case ':': /* Line number */
967 pp->line = strtoul(arg, &tmp, 0);
969 semantic_error("There is non-digit char"
970 " in line number.\n");
974 case '+': /* Byte offset from a symbol */
975 pp->offset = strtoul(arg, &tmp, 0);
977 semantic_error("There is non-digit character"
982 case '@': /* File name */
984 semantic_error("SRC@SRC is not allowed.\n");
987 pp->file = strdup(arg);
988 if (pp->file == NULL)
991 case '%': /* Probe places */
992 if (strcmp(arg, "return") == 0) {
994 } else { /* Others not supported yet */
995 semantic_error("%%%s is not supported.\n", arg);
999 default: /* Buggy case */
1000 pr_err("This program has a bug at %s:%d.\n",
1001 __FILE__, __LINE__);
1007 /* Exclusion check */
1008 if (pp->lazy_line && pp->line) {
1009 semantic_error("Lazy pattern can't be used with"
1014 if (pp->lazy_line && pp->offset) {
1015 semantic_error("Lazy pattern can't be used with offset.\n");
1019 if (pp->line && pp->offset) {
1020 semantic_error("Offset can't be used with line number.\n");
1024 if (!pp->line && !pp->lazy_line && pp->file && !pp->function) {
1025 semantic_error("File always requires line number or "
1030 if (pp->offset && !pp->function) {
1031 semantic_error("Offset requires an entry function.\n");
1035 if (pp->retprobe && !pp->function) {
1036 semantic_error("Return probe requires an entry function.\n");
1040 if ((pp->offset || pp->line || pp->lazy_line) && pp->retprobe) {
1041 semantic_error("Offset/Line/Lazy pattern can't be used with "
1046 pr_debug("symbol:%s file:%s line:%d offset:%lu return:%d lazy:%s\n",
1047 pp->function, pp->file, pp->line, pp->offset, pp->retprobe,
1052 /* Parse perf-probe event argument */
1053 static int parse_perf_probe_arg(char *str, struct perf_probe_arg *arg)
1055 char *tmp, *goodname;
1056 struct perf_probe_arg_field **fieldp;
1058 pr_debug("parsing arg: %s into ", str);
1060 tmp = strchr(str, '=');
1062 arg->name = strndup(str, tmp - str);
1063 if (arg->name == NULL)
1065 pr_debug("name:%s ", arg->name);
1069 tmp = strchr(str, ':');
1070 if (tmp) { /* Type setting */
1072 arg->type = strdup(tmp + 1);
1073 if (arg->type == NULL)
1075 pr_debug("type:%s ", arg->type);
1078 tmp = strpbrk(str, "-.[");
1079 if (!is_c_varname(str) || !tmp) {
1080 /* A variable, register, symbol or special value */
1081 arg->var = strdup(str);
1082 if (arg->var == NULL)
1084 pr_debug("%s\n", arg->var);
1088 /* Structure fields or array element */
1089 arg->var = strndup(str, tmp - str);
1090 if (arg->var == NULL)
1092 goodname = arg->var;
1093 pr_debug("%s, ", arg->var);
1094 fieldp = &arg->field;
1097 *fieldp = zalloc(sizeof(struct perf_probe_arg_field));
1098 if (*fieldp == NULL)
1100 if (*tmp == '[') { /* Array */
1102 (*fieldp)->index = strtol(str + 1, &tmp, 0);
1103 (*fieldp)->ref = true;
1104 if (*tmp != ']' || tmp == str + 1) {
1105 semantic_error("Array index must be a"
1112 } else { /* Structure */
1115 (*fieldp)->ref = false;
1116 } else if (tmp[1] == '>') {
1118 (*fieldp)->ref = true;
1120 semantic_error("Argument parse error: %s\n",
1124 tmp = strpbrk(str, "-.[");
1127 (*fieldp)->name = strndup(str, tmp - str);
1128 if ((*fieldp)->name == NULL)
1131 goodname = (*fieldp)->name;
1132 pr_debug("%s(%d), ", (*fieldp)->name, (*fieldp)->ref);
1133 fieldp = &(*fieldp)->next;
1136 (*fieldp)->name = strdup(str);
1137 if ((*fieldp)->name == NULL)
1140 goodname = (*fieldp)->name;
1141 pr_debug("%s(%d)\n", (*fieldp)->name, (*fieldp)->ref);
1143 /* If no name is specified, set the last field name (not array index)*/
1145 arg->name = strdup(goodname);
1146 if (arg->name == NULL)
1152 /* Parse perf-probe event command */
1153 int parse_perf_probe_command(const char *cmd, struct perf_probe_event *pev)
1156 int argc, i, ret = 0;
1158 argv = argv_split(cmd, &argc);
1160 pr_debug("Failed to split arguments.\n");
1163 if (argc - 1 > MAX_PROBE_ARGS) {
1164 semantic_error("Too many probe arguments (%d).\n", argc - 1);
1168 /* Parse probe point */
1169 ret = parse_perf_probe_point(argv[0], pev);
1173 /* Copy arguments and ensure return probe has no C argument */
1174 pev->nargs = argc - 1;
1175 pev->args = zalloc(sizeof(struct perf_probe_arg) * pev->nargs);
1176 if (pev->args == NULL) {
1180 for (i = 0; i < pev->nargs && ret >= 0; i++) {
1181 ret = parse_perf_probe_arg(argv[i + 1], &pev->args[i]);
1183 is_c_varname(pev->args[i].var) && pev->point.retprobe) {
1184 semantic_error("You can't specify local variable for"
1195 /* Return true if this perf_probe_event requires debuginfo */
1196 bool perf_probe_event_need_dwarf(struct perf_probe_event *pev)
1200 if (pev->point.file || pev->point.line || pev->point.lazy_line)
1203 for (i = 0; i < pev->nargs; i++)
1204 if (is_c_varname(pev->args[i].var))
1210 /* Parse probe_events event into struct probe_point */
1211 static int parse_probe_trace_command(const char *cmd,
1212 struct probe_trace_event *tev)
1214 struct probe_trace_point *tp = &tev->point;
1217 char *argv0_str = NULL, *fmt, *fmt1_str, *fmt2_str, *fmt3_str;
1221 pr_debug("Parsing probe_events: %s\n", cmd);
1222 argv = argv_split(cmd, &argc);
1224 pr_debug("Failed to split arguments.\n");
1228 semantic_error("Too few probe arguments.\n");
1233 /* Scan event and group name. */
1234 argv0_str = strdup(argv[0]);
1235 if (argv0_str == NULL) {
1239 fmt1_str = strtok_r(argv0_str, ":", &fmt);
1240 fmt2_str = strtok_r(NULL, "/", &fmt);
1241 fmt3_str = strtok_r(NULL, " \t", &fmt);
1242 if (fmt1_str == NULL || strlen(fmt1_str) != 1 || fmt2_str == NULL
1243 || fmt3_str == NULL) {
1244 semantic_error("Failed to parse event name: %s\n", argv[0]);
1249 tev->group = strdup(fmt2_str);
1250 tev->event = strdup(fmt3_str);
1251 if (tev->group == NULL || tev->event == NULL) {
1255 pr_debug("Group:%s Event:%s probe:%c\n", tev->group, tev->event, pr);
1257 tp->retprobe = (pr == 'r');
1259 /* Scan module name(if there), function name and offset */
1260 p = strchr(argv[1], ':');
1262 tp->module = strndup(argv[1], p - argv[1]);
1266 fmt1_str = strtok_r(p, "+", &fmt);
1267 tp->symbol = strdup(fmt1_str);
1268 if (tp->symbol == NULL) {
1272 fmt2_str = strtok_r(NULL, "", &fmt);
1273 if (fmt2_str == NULL)
1276 tp->offset = strtoul(fmt2_str, NULL, 10);
1278 tev->nargs = argc - 2;
1279 tev->args = zalloc(sizeof(struct probe_trace_arg) * tev->nargs);
1280 if (tev->args == NULL) {
1284 for (i = 0; i < tev->nargs; i++) {
1285 p = strchr(argv[i + 2], '=');
1286 if (p) /* We don't need which register is assigned. */
1290 tev->args[i].name = strdup(argv[i + 2]);
1291 /* TODO: parse regs and offset */
1292 tev->args[i].value = strdup(p);
1293 if (tev->args[i].name == NULL || tev->args[i].value == NULL) {
1305 /* Compose only probe arg */
1306 int synthesize_perf_probe_arg(struct perf_probe_arg *pa, char *buf, size_t len)
1308 struct perf_probe_arg_field *field = pa->field;
1312 if (pa->name && pa->var)
1313 ret = e_snprintf(tmp, len, "%s=%s", pa->name, pa->var);
1315 ret = e_snprintf(tmp, len, "%s", pa->name ? pa->name : pa->var);
1322 if (field->name[0] == '[')
1323 ret = e_snprintf(tmp, len, "%s", field->name);
1325 ret = e_snprintf(tmp, len, "%s%s",
1326 field->ref ? "->" : ".", field->name);
1331 field = field->next;
1335 ret = e_snprintf(tmp, len, ":%s", pa->type);
1344 pr_debug("Failed to synthesize perf probe argument: %s\n",
1349 /* Compose only probe point (not argument) */
1350 static char *synthesize_perf_probe_point(struct perf_probe_point *pp)
1353 char offs[32] = "", line[32] = "", file[32] = "";
1356 buf = zalloc(MAX_CMDLEN);
1362 ret = e_snprintf(offs, 32, "+%lu", pp->offset);
1367 ret = e_snprintf(line, 32, ":%d", pp->line);
1375 tmp = strchr(pp->file + len - 30, '/');
1376 tmp = tmp ? tmp + 1 : pp->file + len - 30;
1378 ret = e_snprintf(file, 32, "@%s", tmp);
1384 ret = e_snprintf(buf, MAX_CMDLEN, "%s%s%s%s%s", pp->function,
1385 offs, pp->retprobe ? "%return" : "", line,
1388 ret = e_snprintf(buf, MAX_CMDLEN, "%s%s", file, line);
1394 pr_debug("Failed to synthesize perf probe point: %s\n",
1401 char *synthesize_perf_probe_command(struct perf_probe_event *pev)
1406 buf = synthesize_perf_probe_point(&pev->point);
1411 for (i = 0; i < pev->nargs; i++) {
1412 ret = e_snprintf(&buf[len], MAX_CMDLEN - len, " %s",
1425 static int __synthesize_probe_trace_arg_ref(struct probe_trace_arg_ref *ref,
1426 char **buf, size_t *buflen,
1431 depth = __synthesize_probe_trace_arg_ref(ref->next, buf,
1437 ret = e_snprintf(*buf, *buflen, "%+ld(", ref->offset);
1449 static int synthesize_probe_trace_arg(struct probe_trace_arg *arg,
1450 char *buf, size_t buflen)
1452 struct probe_trace_arg_ref *ref = arg->ref;
1456 /* Argument name or separator */
1458 ret = e_snprintf(buf, buflen, " %s=", arg->name);
1460 ret = e_snprintf(buf, buflen, " ");
1466 /* Special case: @XXX */
1467 if (arg->value[0] == '@' && arg->ref)
1470 /* Dereferencing arguments */
1472 depth = __synthesize_probe_trace_arg_ref(ref, &buf,
1478 /* Print argument value */
1479 if (arg->value[0] == '@' && arg->ref)
1480 ret = e_snprintf(buf, buflen, "%s%+ld", arg->value,
1483 ret = e_snprintf(buf, buflen, "%s", arg->value);
1491 ret = e_snprintf(buf, buflen, ")");
1497 /* Print argument type */
1499 ret = e_snprintf(buf, buflen, ":%s", arg->type);
1508 char *synthesize_probe_trace_command(struct probe_trace_event *tev)
1510 struct probe_trace_point *tp = &tev->point;
1514 buf = zalloc(MAX_CMDLEN);
1519 len = e_snprintf(buf, MAX_CMDLEN, "%c:%s/%s %s:%s",
1520 tp->retprobe ? 'r' : 'p',
1521 tev->group, tev->event,
1522 tp->module, tp->symbol);
1524 len = e_snprintf(buf, MAX_CMDLEN, "%c:%s/%s %s%s%s+%lu",
1525 tp->retprobe ? 'r' : 'p',
1526 tev->group, tev->event,
1527 tp->module ?: "", tp->module ? ":" : "",
1528 tp->symbol, tp->offset);
1533 for (i = 0; i < tev->nargs; i++) {
1534 ret = synthesize_probe_trace_arg(&tev->args[i], buf + len,
1547 static int convert_to_perf_probe_event(struct probe_trace_event *tev,
1548 struct perf_probe_event *pev, bool is_kprobe)
1553 /* Convert event/group name */
1554 pev->event = strdup(tev->event);
1555 pev->group = strdup(tev->group);
1556 if (pev->event == NULL || pev->group == NULL)
1559 /* Convert trace_point to probe_point */
1561 ret = kprobe_convert_to_perf_probe(&tev->point, &pev->point);
1563 ret = convert_to_perf_probe_point(&tev->point, &pev->point);
1568 /* Convert trace_arg to probe_arg */
1569 pev->nargs = tev->nargs;
1570 pev->args = zalloc(sizeof(struct perf_probe_arg) * pev->nargs);
1571 if (pev->args == NULL)
1573 for (i = 0; i < tev->nargs && ret >= 0; i++) {
1574 if (tev->args[i].name)
1575 pev->args[i].name = strdup(tev->args[i].name);
1577 ret = synthesize_probe_trace_arg(&tev->args[i],
1579 pev->args[i].name = strdup(buf);
1581 if (pev->args[i].name == NULL && ret >= 0)
1586 clear_perf_probe_event(pev);
1591 void clear_perf_probe_event(struct perf_probe_event *pev)
1593 struct perf_probe_point *pp = &pev->point;
1594 struct perf_probe_arg_field *field, *next;
1601 free(pp->lazy_line);
1603 for (i = 0; i < pev->nargs; i++) {
1604 free(pev->args[i].name);
1605 free(pev->args[i].var);
1606 free(pev->args[i].type);
1607 field = pev->args[i].field;
1610 zfree(&field->name);
1616 memset(pev, 0, sizeof(*pev));
1619 static void clear_probe_trace_event(struct probe_trace_event *tev)
1621 struct probe_trace_arg_ref *ref, *next;
1626 free(tev->point.symbol);
1627 free(tev->point.module);
1628 for (i = 0; i < tev->nargs; i++) {
1629 free(tev->args[i].name);
1630 free(tev->args[i].value);
1631 free(tev->args[i].type);
1632 ref = tev->args[i].ref;
1640 memset(tev, 0, sizeof(*tev));
1643 static void print_warn_msg(const char *file, bool is_kprobe)
1646 if (errno == ENOENT) {
1650 config = "CONFIG_UPROBE_EVENTS";
1652 config = "CONFIG_KPROBE_EVENTS";
1654 pr_warning("%s file does not exist - please rebuild kernel"
1655 " with %s.\n", file, config);
1657 pr_warning("Failed to open %s file: %s\n", file,
1661 static int open_probe_events(const char *trace_file, bool readwrite,
1665 const char *__debugfs;
1668 __debugfs = debugfs_find_mountpoint();
1669 if (__debugfs == NULL) {
1670 pr_warning("Debugfs is not mounted.\n");
1674 ret = e_snprintf(buf, PATH_MAX, "%s/%s", __debugfs, trace_file);
1676 pr_debug("Opening %s write=%d\n", buf, readwrite);
1677 if (readwrite && !probe_event_dry_run)
1678 ret = open(buf, O_RDWR, O_APPEND);
1680 ret = open(buf, O_RDONLY, 0);
1683 print_warn_msg(buf, is_kprobe);
1688 static int open_kprobe_events(bool readwrite)
1690 return open_probe_events("tracing/kprobe_events", readwrite, true);
1693 static int open_uprobe_events(bool readwrite)
1695 return open_probe_events("tracing/uprobe_events", readwrite, false);
1698 /* Get raw string list of current kprobe_events or uprobe_events */
1699 static struct strlist *get_probe_trace_command_rawlist(int fd)
1703 char buf[MAX_CMDLEN];
1707 sl = strlist__new(true, NULL);
1709 fp = fdopen(dup(fd), "r");
1711 p = fgets(buf, MAX_CMDLEN, fp);
1715 idx = strlen(p) - 1;
1718 ret = strlist__add(sl, buf);
1720 pr_debug("strlist__add failed: %s\n", strerror(-ret));
1721 strlist__delete(sl);
1731 static int show_perf_probe_event(struct perf_probe_event *pev)
1737 /* Synthesize only event probe point */
1738 place = synthesize_perf_probe_point(&pev->point);
1742 ret = e_snprintf(buf, 128, "%s:%s", pev->group, pev->event);
1746 printf(" %-20s (on %s", buf, place);
1748 if (pev->nargs > 0) {
1750 for (i = 0; i < pev->nargs; i++) {
1751 ret = synthesize_perf_probe_arg(&pev->args[i],
1763 static int __show_perf_probe_events(int fd, bool is_kprobe)
1766 struct probe_trace_event tev;
1767 struct perf_probe_event pev;
1768 struct strlist *rawlist;
1769 struct str_node *ent;
1771 memset(&tev, 0, sizeof(tev));
1772 memset(&pev, 0, sizeof(pev));
1774 rawlist = get_probe_trace_command_rawlist(fd);
1778 strlist__for_each(ent, rawlist) {
1779 ret = parse_probe_trace_command(ent->s, &tev);
1781 ret = convert_to_perf_probe_event(&tev, &pev,
1784 ret = show_perf_probe_event(&pev);
1786 clear_perf_probe_event(&pev);
1787 clear_probe_trace_event(&tev);
1791 strlist__delete(rawlist);
1796 /* List up current perf-probe events */
1797 int show_perf_probe_events(void)
1802 fd = open_kprobe_events(false);
1807 ret = init_symbol_maps(false);
1811 ret = __show_perf_probe_events(fd, true);
1814 fd = open_uprobe_events(false);
1816 ret = __show_perf_probe_events(fd, false);
1824 /* Get current perf-probe event names */
1825 static struct strlist *get_probe_trace_event_names(int fd, bool include_group)
1828 struct strlist *sl, *rawlist;
1829 struct str_node *ent;
1830 struct probe_trace_event tev;
1833 memset(&tev, 0, sizeof(tev));
1834 rawlist = get_probe_trace_command_rawlist(fd);
1835 sl = strlist__new(true, NULL);
1836 strlist__for_each(ent, rawlist) {
1837 ret = parse_probe_trace_command(ent->s, &tev);
1840 if (include_group) {
1841 ret = e_snprintf(buf, 128, "%s:%s", tev.group,
1844 ret = strlist__add(sl, buf);
1846 ret = strlist__add(sl, tev.event);
1847 clear_probe_trace_event(&tev);
1851 strlist__delete(rawlist);
1854 strlist__delete(sl);
1860 static int write_probe_trace_event(int fd, struct probe_trace_event *tev)
1863 char *buf = synthesize_probe_trace_command(tev);
1866 pr_debug("Failed to synthesize probe trace event.\n");
1870 pr_debug("Writing event: %s\n", buf);
1871 if (!probe_event_dry_run) {
1872 ret = write(fd, buf, strlen(buf));
1874 pr_warning("Failed to write event: %s\n",
1881 static int get_new_event_name(char *buf, size_t len, const char *base,
1882 struct strlist *namelist, bool allow_suffix)
1887 ret = e_snprintf(buf, len, "%s", base);
1889 pr_debug("snprintf() failed: %s\n", strerror(-ret));
1892 if (!strlist__has_entry(namelist, buf))
1895 if (!allow_suffix) {
1896 pr_warning("Error: event \"%s\" already exists. "
1897 "(Use -f to force duplicates.)\n", base);
1901 /* Try to add suffix */
1902 for (i = 1; i < MAX_EVENT_INDEX; i++) {
1903 ret = e_snprintf(buf, len, "%s_%d", base, i);
1905 pr_debug("snprintf() failed: %s\n", strerror(-ret));
1908 if (!strlist__has_entry(namelist, buf))
1911 if (i == MAX_EVENT_INDEX) {
1912 pr_warning("Too many events are on the same function.\n");
1919 static int __add_probe_trace_events(struct perf_probe_event *pev,
1920 struct probe_trace_event *tevs,
1921 int ntevs, bool allow_suffix)
1924 struct probe_trace_event *tev = NULL;
1926 const char *event, *group;
1927 struct strlist *namelist;
1930 fd = open_uprobe_events(true);
1932 fd = open_kprobe_events(true);
1936 /* Get current event names */
1937 namelist = get_probe_trace_event_names(fd, false);
1939 pr_debug("Failed to get current event list.\n");
1944 printf("Added new event%s\n", (ntevs > 1) ? "s:" : ":");
1945 for (i = 0; i < ntevs; i++) {
1950 if (pev->point.function)
1951 event = pev->point.function;
1953 event = tev->point.symbol;
1957 group = PERFPROBE_GROUP;
1959 /* Get an unused new event name */
1960 ret = get_new_event_name(buf, 64, event,
1961 namelist, allow_suffix);
1966 tev->event = strdup(event);
1967 tev->group = strdup(group);
1968 if (tev->event == NULL || tev->group == NULL) {
1972 ret = write_probe_trace_event(fd, tev);
1975 /* Add added event name to namelist */
1976 strlist__add(namelist, event);
1978 /* Trick here - save current event/group */
1981 pev->event = tev->event;
1982 pev->group = tev->group;
1983 show_perf_probe_event(pev);
1984 /* Trick here - restore current event/group */
1985 pev->event = (char *)event;
1986 pev->group = (char *)group;
1989 * Probes after the first probe which comes from same
1990 * user input are always allowed to add suffix, because
1991 * there might be several addresses corresponding to
1994 allow_suffix = true;
1998 /* Show how to use the event. */
1999 printf("\nYou can now use it in all perf tools, such as:\n\n");
2000 printf("\tperf record -e %s:%s -aR sleep 1\n\n", tev->group,
2004 strlist__delete(namelist);
2009 static int convert_to_probe_trace_events(struct perf_probe_event *pev,
2010 struct probe_trace_event **tevs,
2011 int max_tevs, const char *target)
2015 struct probe_trace_event *tev;
2017 if (pev->uprobes && !pev->group) {
2018 /* Replace group name if not given */
2019 ret = convert_exec_to_group(target, &pev->group);
2021 pr_warning("Failed to make a group name.\n");
2026 /* Convert perf_probe_event with debuginfo */
2027 ret = try_to_find_probe_trace_events(pev, tevs, max_tevs, target);
2029 return ret; /* Found in debuginfo or got an error */
2032 ret = convert_name_to_addr(pev, target);
2037 /* Allocate trace event buffer */
2038 tev = *tevs = zalloc(sizeof(struct probe_trace_event));
2042 /* Copy parameters */
2043 tev->point.symbol = strdup(pev->point.function);
2044 if (tev->point.symbol == NULL) {
2050 tev->point.module = strdup(target);
2051 if (tev->point.module == NULL) {
2057 tev->point.offset = pev->point.offset;
2058 tev->point.retprobe = pev->point.retprobe;
2059 tev->nargs = pev->nargs;
2060 tev->uprobes = pev->uprobes;
2063 tev->args = zalloc(sizeof(struct probe_trace_arg)
2065 if (tev->args == NULL) {
2069 for (i = 0; i < tev->nargs; i++) {
2070 if (pev->args[i].name) {
2071 tev->args[i].name = strdup(pev->args[i].name);
2072 if (tev->args[i].name == NULL) {
2077 tev->args[i].value = strdup(pev->args[i].var);
2078 if (tev->args[i].value == NULL) {
2082 if (pev->args[i].type) {
2083 tev->args[i].type = strdup(pev->args[i].type);
2084 if (tev->args[i].type == NULL) {
2095 /* Currently just checking function name from symbol map */
2096 sym = __find_kernel_function_by_name(tev->point.symbol, NULL);
2098 pr_warning("Kernel symbol \'%s\' not found.\n",
2102 } else if (tev->point.offset > sym->end - sym->start) {
2103 pr_warning("Offset specified is greater than size of %s\n",
2112 clear_probe_trace_event(tev);
2118 struct __event_package {
2119 struct perf_probe_event *pev;
2120 struct probe_trace_event *tevs;
2124 int add_perf_probe_events(struct perf_probe_event *pevs, int npevs,
2125 int max_tevs, const char *target, bool force_add)
2128 struct __event_package *pkgs;
2131 pkgs = zalloc(sizeof(struct __event_package) * npevs);
2136 ret = init_symbol_maps(pevs->uprobes);
2142 /* Loop 1: convert all events */
2143 for (i = 0; i < npevs; i++) {
2144 pkgs[i].pev = &pevs[i];
2145 /* Convert with or without debuginfo */
2146 ret = convert_to_probe_trace_events(pkgs[i].pev,
2152 pkgs[i].ntevs = ret;
2155 /* Loop 2: add all events */
2156 for (i = 0; i < npevs; i++) {
2157 ret = __add_probe_trace_events(pkgs[i].pev, pkgs[i].tevs,
2158 pkgs[i].ntevs, force_add);
2163 /* Loop 3: cleanup and free trace events */
2164 for (i = 0; i < npevs; i++) {
2165 for (j = 0; j < pkgs[i].ntevs; j++)
2166 clear_probe_trace_event(&pkgs[i].tevs[j]);
2167 zfree(&pkgs[i].tevs);
2175 static int __del_trace_probe_event(int fd, struct str_node *ent)
2181 /* Convert from perf-probe event to trace-probe event */
2182 ret = e_snprintf(buf, 128, "-:%s", ent->s);
2186 p = strchr(buf + 2, ':');
2188 pr_debug("Internal error: %s should have ':' but not.\n",
2195 pr_debug("Writing event: %s\n", buf);
2196 ret = write(fd, buf, strlen(buf));
2202 printf("Removed event: %s\n", ent->s);
2205 pr_warning("Failed to delete event: %s\n", strerror(-ret));
2209 static int del_trace_probe_event(int fd, const char *buf,
2210 struct strlist *namelist)
2212 struct str_node *ent, *n;
2215 if (strpbrk(buf, "*?")) { /* Glob-exp */
2216 strlist__for_each_safe(ent, n, namelist)
2217 if (strglobmatch(ent->s, buf)) {
2218 ret = __del_trace_probe_event(fd, ent);
2221 strlist__remove(namelist, ent);
2224 ent = strlist__find(namelist, buf);
2226 ret = __del_trace_probe_event(fd, ent);
2228 strlist__remove(namelist, ent);
2235 int del_perf_probe_events(struct strlist *dellist)
2237 int ret = -1, ufd = -1, kfd = -1;
2239 const char *group, *event;
2241 struct str_node *ent;
2242 struct strlist *namelist = NULL, *unamelist = NULL;
2244 /* Get current event names */
2245 kfd = open_kprobe_events(true);
2249 namelist = get_probe_trace_event_names(kfd, true);
2250 ufd = open_uprobe_events(true);
2253 unamelist = get_probe_trace_event_names(ufd, true);
2255 if (namelist == NULL && unamelist == NULL)
2258 strlist__for_each(ent, dellist) {
2259 str = strdup(ent->s);
2264 pr_debug("Parsing: %s\n", str);
2265 p = strchr(str, ':');
2275 ret = e_snprintf(buf, 128, "%s:%s", group, event);
2277 pr_err("Failed to copy event.");
2282 pr_debug("Group: %s, Event: %s\n", group, event);
2285 ret = del_trace_probe_event(kfd, buf, namelist);
2287 if (unamelist && ret != 0)
2288 ret = del_trace_probe_event(ufd, buf, unamelist);
2291 pr_info("Info: Event \"%s\" does not exist.\n", buf);
2298 strlist__delete(namelist);
2303 strlist__delete(unamelist);
2310 /* TODO: don't use a global variable for filter ... */
2311 static struct strfilter *available_func_filter;
2314 * If a symbol corresponds to a function with global binding and
2315 * matches filter return 0. For all others return 1.
2317 static int filter_available_functions(struct map *map __maybe_unused,
2320 if (sym->binding == STB_GLOBAL &&
2321 strfilter__compare(available_func_filter, sym->name))
2326 int show_available_funcs(const char *target, struct strfilter *_filter,
2332 ret = init_symbol_maps(user);
2336 /* Get a symbol map */
2338 map = dso__new_map(target);
2340 map = kernel_get_module_map(target);
2342 pr_err("Failed to get a map for %s\n", (target) ? : "kernel");
2346 /* Load symbols with given filter */
2347 available_func_filter = _filter;
2348 if (map__load(map, filter_available_functions)) {
2349 pr_err("Failed to load symbols in %s\n", (target) ? : "kernel");
2352 if (!dso__sorted_by_name(map->dso, map->type))
2353 dso__sort_by_name(map->dso, map->type);
2355 /* Show all (filtered) symbols */
2357 dso__fprintf_symbols_by_name(map->dso, map->type, stdout);
2360 dso__delete(map->dso);
2369 * uprobe_events only accepts address:
2370 * Convert function and any offset to address
2372 static int convert_name_to_addr(struct perf_probe_event *pev, const char *exec)
2374 struct perf_probe_point *pp = &pev->point;
2376 struct map *map = NULL;
2377 char *function = NULL;
2379 unsigned long long vaddr = 0;
2381 if (!pp->function) {
2382 pr_warning("No function specified for uprobes");
2386 function = strdup(pp->function);
2388 pr_warning("Failed to allocate memory by strdup.\n");
2393 map = dso__new_map(exec);
2395 pr_warning("Cannot find appropriate DSO for %s.\n", exec);
2398 available_func_filter = strfilter__new(function, NULL);
2399 if (map__load(map, filter_available_functions)) {
2400 pr_err("Failed to load map.\n");
2404 sym = map__find_symbol_by_name(map, function, NULL);
2406 pr_warning("Cannot find %s in DSO %s\n", function, exec);
2410 if (map->start > sym->start)
2412 vaddr += sym->start + pp->offset + map->pgoff;
2416 pev->event = function;
2420 char *ptr1, *ptr2, *exec_copy;
2422 pev->group = zalloc(sizeof(char *) * 64);
2423 exec_copy = strdup(exec);
2426 pr_warning("Failed to copy exec string.\n");
2430 ptr1 = strdup(basename(exec_copy));
2432 ptr2 = strpbrk(ptr1, "-._");
2435 e_snprintf(pev->group, 64, "%s_%s", PERFPROBE_GROUP,
2442 pp->function = zalloc(sizeof(char *) * MAX_PROBE_ARGS);
2443 if (!pp->function) {
2445 pr_warning("Failed to allocate memory by zalloc.\n");
2448 e_snprintf(pp->function, MAX_PROBE_ARGS, "0x%llx", vaddr);
2453 dso__delete(map->dso);