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-rw-r--r--tools/perf/builtin-probe.c6
-rw-r--r--tools/perf/builtin-trace.c4
-rw-r--r--tools/perf/tests/code-reading.c20
-rw-r--r--tools/perf/tests/kmod-path.c2
-rw-r--r--tools/perf/util/event.c4
-rw-r--r--tools/perf/util/header.c12
-rw-r--r--tools/perf/util/ordered-events.c3
-rw-r--r--tools/perf/util/probe-event.c8
-rw-r--r--tools/perf/util/session.c17
-rw-r--r--tools/perf/util/sort.c5
-rw-r--r--tools/perf/util/unwind-libdw.c8
-rw-r--r--tools/perf/util/util.c2
-rwxr-xr-xtools/testing/selftests/firmware/fw_filesystem.sh5
-rw-r--r--tools/testing/selftests/powerpc/tm/tm-resched-dscr.c2
-rwxr-xr-xtools/testing/selftests/rcutorture/bin/configinit.sh2
-rw-r--r--tools/testing/selftests/x86/entry_from_vm86.c117
-rw-r--r--tools/usb/usbip/src/usbipd.c2
17 files changed, 199 insertions, 20 deletions
diff --git a/tools/perf/builtin-probe.c b/tools/perf/builtin-probe.c
index 132afc97676c..9d4ac90ca87e 100644
--- a/tools/perf/builtin-probe.c
+++ b/tools/perf/builtin-probe.c
@@ -405,9 +405,9 @@ static int perf_del_probe_events(struct strfilter *filter)
}
if (ret == -ENOENT && ret2 == -ENOENT)
- pr_debug("\"%s\" does not hit any event.\n", str);
- /* Note that this is silently ignored */
- ret = 0;
+ pr_warning("\"%s\" does not hit any event.\n", str);
+ else
+ ret = 0;
error:
if (kfd >= 0)
diff --git a/tools/perf/builtin-trace.c b/tools/perf/builtin-trace.c
index ebe7115c751a..da8afc121118 100644
--- a/tools/perf/builtin-trace.c
+++ b/tools/perf/builtin-trace.c
@@ -1152,6 +1152,10 @@ static struct syscall_fmt {
{ .name = "mlockall", .errmsg = true,
.arg_scnprintf = { [0] = SCA_HEX, /* addr */ }, },
{ .name = "mmap", .hexret = true,
+/* The standard mmap maps to old_mmap on s390x */
+#if defined(__s390x__)
+ .alias = "old_mmap",
+#endif
.arg_scnprintf = { [0] = SCA_HEX, /* addr */
[2] = SCA_MMAP_PROT, /* prot */
[3] = SCA_MMAP_FLAGS, /* flags */
diff --git a/tools/perf/tests/code-reading.c b/tools/perf/tests/code-reading.c
index a767a6400c5c..6ea4fcfaab36 100644
--- a/tools/perf/tests/code-reading.c
+++ b/tools/perf/tests/code-reading.c
@@ -182,6 +182,8 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode,
unsigned char buf2[BUFSZ];
size_t ret_len;
u64 objdump_addr;
+ const char *objdump_name;
+ char decomp_name[KMOD_DECOMP_LEN];
int ret;
pr_debug("Reading object code for memory address: %#"PRIx64"\n", addr);
@@ -242,9 +244,25 @@ static int read_object_code(u64 addr, size_t len, u8 cpumode,
state->done[state->done_cnt++] = al.map->start;
}
+ objdump_name = al.map->dso->long_name;
+ if (dso__needs_decompress(al.map->dso)) {
+ if (dso__decompress_kmodule_path(al.map->dso, objdump_name,
+ decomp_name,
+ sizeof(decomp_name)) < 0) {
+ pr_debug("decompression failed\n");
+ return -1;
+ }
+
+ objdump_name = decomp_name;
+ }
+
/* Read the object code using objdump */
objdump_addr = map__rip_2objdump(al.map, al.addr);
- ret = read_via_objdump(al.map->dso->long_name, objdump_addr, buf2, len);
+ ret = read_via_objdump(objdump_name, objdump_addr, buf2, len);
+
+ if (dso__needs_decompress(al.map->dso))
+ unlink(objdump_name);
+
if (ret > 0) {
/*
* The kernel maps are inaccurate - assume objdump is right in
diff --git a/tools/perf/tests/kmod-path.c b/tools/perf/tests/kmod-path.c
index 08c433b4bf4f..25e80c02230b 100644
--- a/tools/perf/tests/kmod-path.c
+++ b/tools/perf/tests/kmod-path.c
@@ -60,6 +60,7 @@ int test__kmod_path__parse(void)
M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_KERNEL, true);
M("/xxxx/xxxx/x-x.ko", PERF_RECORD_MISC_USER, false);
+#ifdef HAVE_ZLIB_SUPPORT
/* path alloc_name alloc_ext kmod comp name ext */
T("/xxxx/xxxx/x.ko.gz", true , true , true, true, "[x]", "gz");
T("/xxxx/xxxx/x.ko.gz", false , true , true, true, NULL , "gz");
@@ -95,6 +96,7 @@ int test__kmod_path__parse(void)
M("x.ko.gz", PERF_RECORD_MISC_CPUMODE_UNKNOWN, true);
M("x.ko.gz", PERF_RECORD_MISC_KERNEL, true);
M("x.ko.gz", PERF_RECORD_MISC_USER, false);
+#endif
/* path alloc_name alloc_ext kmod comp name ext */
T("[test_module]", true , true , true, false, "[test_module]", NULL);
diff --git a/tools/perf/util/event.c b/tools/perf/util/event.c
index 26cba64345e3..46af9dde11e2 100644
--- a/tools/perf/util/event.c
+++ b/tools/perf/util/event.c
@@ -234,8 +234,8 @@ int perf_event__synthesize_mmap_events(struct perf_tool *tool,
if (machine__is_default_guest(machine))
return 0;
- snprintf(filename, sizeof(filename), "%s/proc/%d/maps",
- machine->root_dir, pid);
+ snprintf(filename, sizeof(filename), "%s/proc/%d/task/%d/maps",
+ machine->root_dir, pid, pid);
fp = fopen(filename, "r");
if (fp == NULL) {
diff --git a/tools/perf/util/header.c b/tools/perf/util/header.c
index 43838003c1a1..304f5d710143 100644
--- a/tools/perf/util/header.c
+++ b/tools/perf/util/header.c
@@ -1258,8 +1258,16 @@ static int __event_process_build_id(struct build_id_event *bev,
dso__set_build_id(dso, &bev->build_id);
- if (!is_kernel_module(filename, cpumode))
- dso->kernel = dso_type;
+ if (dso_type != DSO_TYPE_USER) {
+ struct kmod_path m = { .name = NULL, };
+
+ if (!kmod_path__parse_name(&m, filename) && m.kmod)
+ dso__set_short_name(dso, strdup(m.name), true);
+ else
+ dso->kernel = dso_type;
+
+ free(m.name);
+ }
build_id__sprintf(dso->build_id, sizeof(dso->build_id),
sbuild_id);
diff --git a/tools/perf/util/ordered-events.c b/tools/perf/util/ordered-events.c
index b1b9e2385f4b..5e58149c4df2 100644
--- a/tools/perf/util/ordered-events.c
+++ b/tools/perf/util/ordered-events.c
@@ -79,7 +79,7 @@ static union perf_event *dup_event(struct ordered_events *oe,
static void free_dup_event(struct ordered_events *oe, union perf_event *event)
{
- if (oe->copy_on_queue) {
+ if (event && oe->copy_on_queue) {
oe->cur_alloc_size -= event->header.size;
free(event);
}
@@ -150,6 +150,7 @@ void ordered_events__delete(struct ordered_events *oe, struct ordered_event *eve
list_move(&event->list, &oe->cache);
oe->nr_events--;
free_dup_event(oe, event->event);
+ event->event = NULL;
}
int ordered_events__queue(struct ordered_events *oe, union perf_event *event,
diff --git a/tools/perf/util/probe-event.c b/tools/perf/util/probe-event.c
index 03875f9154e7..0195b7e8c54a 100644
--- a/tools/perf/util/probe-event.c
+++ b/tools/perf/util/probe-event.c
@@ -2349,6 +2349,14 @@ static int get_new_event_name(char *buf, size_t len, const char *base,
out:
free(nbase);
+
+ /* Final validation */
+ if (ret >= 0 && !is_c_func_name(buf)) {
+ pr_warning("Internal error: \"%s\" is an invalid event name.\n",
+ buf);
+ ret = -EINVAL;
+ }
+
return ret;
}
diff --git a/tools/perf/util/session.c b/tools/perf/util/session.c
index 010ff659b82f..4596496f6c0f 100644
--- a/tools/perf/util/session.c
+++ b/tools/perf/util/session.c
@@ -135,8 +135,14 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
if (perf_session__open(session) < 0)
goto out_close;
- perf_session__set_id_hdr_size(session);
- perf_session__set_comm_exec(session);
+ /*
+ * set session attributes that are present in perf.data
+ * but not in pipe-mode.
+ */
+ if (!file->is_pipe) {
+ perf_session__set_id_hdr_size(session);
+ perf_session__set_comm_exec(session);
+ }
}
} else {
session->machines.host.env = &perf_env;
@@ -151,7 +157,11 @@ struct perf_session *perf_session__new(struct perf_data_file *file,
pr_warning("Cannot read kernel map\n");
}
- if (tool && tool->ordering_requires_timestamps &&
+ /*
+ * In pipe-mode, evlist is empty until PERF_RECORD_HEADER_ATTR is
+ * processed, so perf_evlist__sample_id_all is not meaningful here.
+ */
+ if ((!file || !file->is_pipe) && tool && tool->ordering_requires_timestamps &&
tool->ordered_events && !perf_evlist__sample_id_all(session->evlist)) {
dump_printf("WARNING: No sample_id_all support, falling back to unordered processing\n");
tool->ordered_events = false;
@@ -1411,6 +1421,7 @@ static int __perf_session__process_pipe_events(struct perf_session *session)
buf = malloc(cur_size);
if (!buf)
return -errno;
+ ordered_events__set_copy_on_queue(oe, true);
more:
event = buf;
err = readn(fd, event, sizeof(struct perf_event_header));
diff --git a/tools/perf/util/sort.c b/tools/perf/util/sort.c
index 2d8ccd4d9e1b..87312056f75d 100644
--- a/tools/perf/util/sort.c
+++ b/tools/perf/util/sort.c
@@ -604,6 +604,9 @@ static int hist_entry__mispredict_snprintf(struct hist_entry *he, char *bf,
static int64_t
sort__cycles_cmp(struct hist_entry *left, struct hist_entry *right)
{
+ if (!left->branch_info || !right->branch_info)
+ return cmp_null(left->branch_info, right->branch_info);
+
return left->branch_info->flags.cycles -
right->branch_info->flags.cycles;
}
@@ -611,6 +614,8 @@ sort__cycles_cmp(struct hist_entry *left, struct hist_entry *right)
static int hist_entry__cycles_snprintf(struct hist_entry *he, char *bf,
size_t size, unsigned int width)
{
+ if (!he->branch_info)
+ return scnprintf(bf, size, "%-.*s", width, "N/A");
if (he->branch_info->flags.cycles == 0)
return repsep_snprintf(bf, size, "%-*s", width, "-");
return repsep_snprintf(bf, size, "%-*hd", width,
diff --git a/tools/perf/util/unwind-libdw.c b/tools/perf/util/unwind-libdw.c
index 2dcfe9a7c8d0..60edec383281 100644
--- a/tools/perf/util/unwind-libdw.c
+++ b/tools/perf/util/unwind-libdw.c
@@ -37,6 +37,14 @@ static int __report_module(struct addr_location *al, u64 ip,
return 0;
mod = dwfl_addrmodule(ui->dwfl, ip);
+ if (mod) {
+ Dwarf_Addr s;
+
+ dwfl_module_info(mod, NULL, &s, NULL, NULL, NULL, NULL, NULL);
+ if (s != al->map->start)
+ mod = 0;
+ }
+
if (!mod)
mod = dwfl_report_elf(ui->dwfl, dso->short_name,
dso->long_name, -1, al->map->start,
diff --git a/tools/perf/util/util.c b/tools/perf/util/util.c
index 47b1e36c7ea0..9adc9af8b048 100644
--- a/tools/perf/util/util.c
+++ b/tools/perf/util/util.c
@@ -162,7 +162,7 @@ int copyfile_offset(int ifd, loff_t off_in, int ofd, loff_t off_out, u64 size)
size -= ret;
off_in += ret;
- off_out -= ret;
+ off_out += ret;
}
munmap(ptr, off_in + size);
diff --git a/tools/testing/selftests/firmware/fw_filesystem.sh b/tools/testing/selftests/firmware/fw_filesystem.sh
index 856a1f327b3f..61f9b1dbbd9b 100755
--- a/tools/testing/selftests/firmware/fw_filesystem.sh
+++ b/tools/testing/selftests/firmware/fw_filesystem.sh
@@ -28,7 +28,10 @@ test_finish()
if [ "$HAS_FW_LOADER_USER_HELPER" = "yes" ]; then
echo "$OLD_TIMEOUT" >/sys/class/firmware/timeout
fi
- echo -n "$OLD_PATH" >/sys/module/firmware_class/parameters/path
+ if [ "$OLD_FWPATH" = "" ]; then
+ OLD_FWPATH=" "
+ fi
+ echo -n "$OLD_FWPATH" >/sys/module/firmware_class/parameters/path
rm -f "$FW"
rmdir "$FWPATH"
}
diff --git a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
index 42d4c8caad81..de8dc82e2567 100644
--- a/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
+++ b/tools/testing/selftests/powerpc/tm/tm-resched-dscr.c
@@ -45,12 +45,12 @@ int test_body(void)
printf("Check DSCR TM context switch: ");
fflush(stdout);
for (;;) {
- rv = 1;
asm __volatile__ (
/* set a known value into the DSCR */
"ld 3, %[dscr1];"
"mtspr %[sprn_dscr], 3;"
+ "li %[rv], 1;"
/* start and suspend a transaction */
TBEGIN
"beq 1f;"
diff --git a/tools/testing/selftests/rcutorture/bin/configinit.sh b/tools/testing/selftests/rcutorture/bin/configinit.sh
index 3f81a1095206..50a6371b2b2e 100755
--- a/tools/testing/selftests/rcutorture/bin/configinit.sh
+++ b/tools/testing/selftests/rcutorture/bin/configinit.sh
@@ -51,7 +51,7 @@ then
mkdir $builddir
fi
else
- echo Bad build directory: \"$builddir\"
+ echo Bad build directory: \"$buildloc\"
exit 2
fi
fi
diff --git a/tools/testing/selftests/x86/entry_from_vm86.c b/tools/testing/selftests/x86/entry_from_vm86.c
index d075ea0e5ca1..ade443a88421 100644
--- a/tools/testing/selftests/x86/entry_from_vm86.c
+++ b/tools/testing/selftests/x86/entry_from_vm86.c
@@ -95,6 +95,31 @@ asm (
"int3\n\t"
"vmcode_int80:\n\t"
"int $0x80\n\t"
+ "vmcode_popf_hlt:\n\t"
+ "push %ax\n\t"
+ "popf\n\t"
+ "hlt\n\t"
+ "vmcode_umip:\n\t"
+ /* addressing via displacements */
+ "smsw (2052)\n\t"
+ "sidt (2054)\n\t"
+ "sgdt (2060)\n\t"
+ /* addressing via registers */
+ "mov $2066, %bx\n\t"
+ "smsw (%bx)\n\t"
+ "mov $2068, %bx\n\t"
+ "sidt (%bx)\n\t"
+ "mov $2074, %bx\n\t"
+ "sgdt (%bx)\n\t"
+ /* register operands, only for smsw */
+ "smsw %ax\n\t"
+ "mov %ax, (2080)\n\t"
+ "int3\n\t"
+ "vmcode_umip_str:\n\t"
+ "str %eax\n\t"
+ "vmcode_umip_sldt:\n\t"
+ "sldt %eax\n\t"
+ "int3\n\t"
".size vmcode, . - vmcode\n\t"
"end_vmcode:\n\t"
".code32\n\t"
@@ -103,7 +128,8 @@ asm (
extern unsigned char vmcode[], end_vmcode[];
extern unsigned char vmcode_bound[], vmcode_sysenter[], vmcode_syscall[],
- vmcode_sti[], vmcode_int3[], vmcode_int80[];
+ vmcode_sti[], vmcode_int3[], vmcode_int80[], vmcode_popf_hlt[],
+ vmcode_umip[], vmcode_umip_str[], vmcode_umip_sldt[];
/* Returns false if the test was skipped. */
static bool do_test(struct vm86plus_struct *v86, unsigned long eip,
@@ -153,13 +179,75 @@ static bool do_test(struct vm86plus_struct *v86, unsigned long eip,
(VM86_TYPE(ret) == rettype && VM86_ARG(ret) == retarg)) {
printf("[OK]\tReturned correctly\n");
} else {
- printf("[FAIL]\tIncorrect return reason\n");
+ printf("[FAIL]\tIncorrect return reason (started at eip = 0x%lx, ended at eip = 0x%lx)\n", eip, v86->regs.eip);
nerrs++;
}
return true;
}
+void do_umip_tests(struct vm86plus_struct *vm86, unsigned char *test_mem)
+{
+ struct table_desc {
+ unsigned short limit;
+ unsigned long base;
+ } __attribute__((packed));
+
+ /* Initialize variables with arbitrary values */
+ struct table_desc gdt1 = { .base = 0x3c3c3c3c, .limit = 0x9999 };
+ struct table_desc gdt2 = { .base = 0x1a1a1a1a, .limit = 0xaeae };
+ struct table_desc idt1 = { .base = 0x7b7b7b7b, .limit = 0xf1f1 };
+ struct table_desc idt2 = { .base = 0x89898989, .limit = 0x1313 };
+ unsigned short msw1 = 0x1414, msw2 = 0x2525, msw3 = 3737;
+
+ /* UMIP -- exit with INT3 unless kernel emulation did not trap #GP */
+ do_test(vm86, vmcode_umip - vmcode, VM86_TRAP, 3, "UMIP tests");
+
+ /* Results from displacement-only addressing */
+ msw1 = *(unsigned short *)(test_mem + 2052);
+ memcpy(&idt1, test_mem + 2054, sizeof(idt1));
+ memcpy(&gdt1, test_mem + 2060, sizeof(gdt1));
+
+ /* Results from register-indirect addressing */
+ msw2 = *(unsigned short *)(test_mem + 2066);
+ memcpy(&idt2, test_mem + 2068, sizeof(idt2));
+ memcpy(&gdt2, test_mem + 2074, sizeof(gdt2));
+
+ /* Results when using register operands */
+ msw3 = *(unsigned short *)(test_mem + 2080);
+
+ printf("[INFO]\tResult from SMSW:[0x%04x]\n", msw1);
+ printf("[INFO]\tResult from SIDT: limit[0x%04x]base[0x%08lx]\n",
+ idt1.limit, idt1.base);
+ printf("[INFO]\tResult from SGDT: limit[0x%04x]base[0x%08lx]\n",
+ gdt1.limit, gdt1.base);
+
+ if (msw1 != msw2 || msw1 != msw3)
+ printf("[FAIL]\tAll the results of SMSW should be the same.\n");
+ else
+ printf("[PASS]\tAll the results from SMSW are identical.\n");
+
+ if (memcmp(&gdt1, &gdt2, sizeof(gdt1)))
+ printf("[FAIL]\tAll the results of SGDT should be the same.\n");
+ else
+ printf("[PASS]\tAll the results from SGDT are identical.\n");
+
+ if (memcmp(&idt1, &idt2, sizeof(idt1)))
+ printf("[FAIL]\tAll the results of SIDT should be the same.\n");
+ else
+ printf("[PASS]\tAll the results from SIDT are identical.\n");
+
+ sethandler(SIGILL, sighandler, 0);
+ do_test(vm86, vmcode_umip_str - vmcode, VM86_SIGNAL, 0,
+ "STR instruction");
+ clearhandler(SIGILL);
+
+ sethandler(SIGILL, sighandler, 0);
+ do_test(vm86, vmcode_umip_sldt - vmcode, VM86_SIGNAL, 0,
+ "SLDT instruction");
+ clearhandler(SIGILL);
+}
+
int main(void)
{
struct vm86plus_struct v86;
@@ -180,6 +268,9 @@ int main(void)
v86.regs.ds = load_addr / 16;
v86.regs.es = load_addr / 16;
+ /* Use the end of the page as our stack. */
+ v86.regs.esp = 4096;
+
assert((v86.regs.cs & 3) == 0); /* Looks like RPL = 0 */
/* #BR -- should deliver SIG??? */
@@ -211,6 +302,23 @@ int main(void)
v86.regs.eflags &= ~X86_EFLAGS_IF;
do_test(&v86, vmcode_sti - vmcode, VM86_STI, 0, "STI with VIP set");
+ /* POPF with VIP set but IF clear: should not trap */
+ v86.regs.eflags = X86_EFLAGS_VIP;
+ v86.regs.eax = 0;
+ do_test(&v86, vmcode_popf_hlt - vmcode, VM86_UNKNOWN, 0, "POPF with VIP set and IF clear");
+
+ /* POPF with VIP set and IF set: should trap */
+ v86.regs.eflags = X86_EFLAGS_VIP;
+ v86.regs.eax = X86_EFLAGS_IF;
+ do_test(&v86, vmcode_popf_hlt - vmcode, VM86_STI, 0, "POPF with VIP and IF set");
+
+ /* POPF with VIP clear and IF set: should not trap */
+ v86.regs.eflags = 0;
+ v86.regs.eax = X86_EFLAGS_IF;
+ do_test(&v86, vmcode_popf_hlt - vmcode, VM86_UNKNOWN, 0, "POPF with VIP clear and IF set");
+
+ v86.regs.eflags = 0;
+
/* INT3 -- should cause #BP */
do_test(&v86, vmcode_int3 - vmcode, VM86_TRAP, 3, "INT3");
@@ -218,6 +326,9 @@ int main(void)
v86.regs.eax = (unsigned int)-1;
do_test(&v86, vmcode_int80 - vmcode, VM86_INTx, 0x80, "int80");
+ /* UMIP -- should exit with INTx 0x80 unless UMIP was not disabled */
+ do_umip_tests(&v86, addr);
+
/* Execute a null pointer */
v86.regs.cs = 0;
v86.regs.ss = 0;
@@ -231,7 +342,7 @@ int main(void)
clearhandler(SIGSEGV);
/* Make sure nothing explodes if we fork. */
- if (fork() > 0)
+ if (fork() == 0)
return 0;
return (nerrs == 0 ? 0 : 1);
diff --git a/tools/usb/usbip/src/usbipd.c b/tools/usb/usbip/src/usbipd.c
index 2a7cd2b8d966..8c5b0faba229 100644
--- a/tools/usb/usbip/src/usbipd.c
+++ b/tools/usb/usbip/src/usbipd.c
@@ -451,7 +451,7 @@ static void set_signal(void)
sigaction(SIGTERM, &act, NULL);
sigaction(SIGINT, &act, NULL);
act.sa_handler = SIG_IGN;
- sigaction(SIGCLD, &act, NULL);
+ sigaction(SIGCHLD, &act, NULL);
}
static const char *pid_file;
generated by cgit v1.2.3 (git 2.25.1) at 2025-12-25 23:26:11 +0000