diff options
Diffstat (limited to 'tools')
-rw-r--r-- | tools/perf/util/data-convert-bt.c | 41 | ||||
-rw-r--r-- | tools/perf/util/event.c | 2 | ||||
-rw-r--r-- | tools/perf/util/symbol.c | 16 | ||||
-rw-r--r-- | tools/testing/selftests/net/reuseport_bpf.c | 10 |
4 files changed, 54 insertions, 15 deletions
diff --git a/tools/perf/util/data-convert-bt.c b/tools/perf/util/data-convert-bt.c index bbf69d248ec5..9f53020c3269 100644 --- a/tools/perf/util/data-convert-bt.c +++ b/tools/perf/util/data-convert-bt.c @@ -204,6 +204,44 @@ static unsigned long long adjust_signedness(unsigned long long value_int, int si return (value_int & value_mask) | ~value_mask; } +static int string_set_value(struct bt_ctf_field *field, const char *string) +{ + char *buffer = NULL; + size_t len = strlen(string), i, p; + int err; + + for (i = p = 0; i < len; i++, p++) { + if (isprint(string[i])) { + if (!buffer) + continue; + buffer[p] = string[i]; + } else { + char numstr[5]; + + snprintf(numstr, sizeof(numstr), "\\x%02x", + (unsigned int)(string[i]) & 0xff); + + if (!buffer) { + buffer = zalloc(i + (len - i) * 4 + 2); + if (!buffer) { + pr_err("failed to set unprintable string '%s'\n", string); + return bt_ctf_field_string_set_value(field, "UNPRINTABLE-STRING"); + } + if (i > 0) + strncpy(buffer, string, i); + } + strncat(buffer + p, numstr, 4); + p += 3; + } + } + + if (!buffer) + return bt_ctf_field_string_set_value(field, string); + err = bt_ctf_field_string_set_value(field, buffer); + free(buffer); + return err; +} + static int add_tracepoint_field_value(struct ctf_writer *cw, struct bt_ctf_event_class *event_class, struct bt_ctf_event *event, @@ -270,8 +308,7 @@ static int add_tracepoint_field_value(struct ctf_writer *cw, } if (flags & FIELD_IS_STRING) - ret = bt_ctf_field_string_set_value(field, - data + offset + i * len); + ret = string_set_value(field, data + offset + i * len); else { unsigned long long value_int; diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c index f6fcc6832949..9b141f12329e 100644 --- a/tools/perf/util/event.c +++ b/tools/perf/util/event.c @@ -673,6 +673,8 @@ int perf_event__synthesize_kernel_mmap(struct perf_tool *tool, int err; union perf_event *event; + if (symbol_conf.kptr_restrict) + return -1; if (map == NULL) return -1; diff --git a/tools/perf/util/symbol.c b/tools/perf/util/symbol.c index 20f9cb32b703..54c4ff2b1cee 100644 --- a/tools/perf/util/symbol.c +++ b/tools/perf/util/symbol.c @@ -1933,17 +1933,17 @@ int setup_intlist(struct intlist **list, const char *list_str, static bool symbol__read_kptr_restrict(void) { bool value = false; + FILE *fp = fopen("/proc/sys/kernel/kptr_restrict", "r"); - if (geteuid() != 0) { - FILE *fp = fopen("/proc/sys/kernel/kptr_restrict", "r"); - if (fp != NULL) { - char line[8]; + if (fp != NULL) { + char line[8]; - if (fgets(line, sizeof(line), fp) != NULL) - value = atoi(line) != 0; + if (fgets(line, sizeof(line), fp) != NULL) + value = (geteuid() != 0) ? + (atoi(line) != 0) : + (atoi(line) == 2); - fclose(fp); - } + fclose(fp); } return value; diff --git a/tools/testing/selftests/net/reuseport_bpf.c b/tools/testing/selftests/net/reuseport_bpf.c index 96ba386b1b7b..4a8217448f20 100644 --- a/tools/testing/selftests/net/reuseport_bpf.c +++ b/tools/testing/selftests/net/reuseport_bpf.c @@ -111,9 +111,9 @@ static void attach_ebpf(int fd, uint16_t mod) memset(&attr, 0, sizeof(attr)); attr.prog_type = BPF_PROG_TYPE_SOCKET_FILTER; attr.insn_cnt = ARRAY_SIZE(prog); - attr.insns = (uint64_t)prog; - attr.license = (uint64_t)bpf_license; - attr.log_buf = (uint64_t)bpf_log_buf; + attr.insns = (unsigned long) &prog; + attr.license = (unsigned long) &bpf_license; + attr.log_buf = (unsigned long) &bpf_log_buf; attr.log_size = sizeof(bpf_log_buf); attr.log_level = 1; attr.kern_version = 0; @@ -351,8 +351,8 @@ static void test_filter_no_reuseport(const struct test_params p) memset(&eprog, 0, sizeof(eprog)); eprog.prog_type = BPF_PROG_TYPE_SOCKET_FILTER; eprog.insn_cnt = ARRAY_SIZE(ecode); - eprog.insns = (uint64_t)ecode; - eprog.license = (uint64_t)bpf_license; + eprog.insns = (unsigned long) &ecode; + eprog.license = (unsigned long) &bpf_license; eprog.kern_version = 0; memset(&cprog, 0, sizeof(cprog)); |