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Auto sync2gitlab import of crash-trace-command-2.0-18.el8.src.rpm

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This commit is contained in:
James Antill 2022-05-26 01:15:26 -04:00
parent 7baa96c0a0
commit 3d0d681b3b
20 changed files with 1948 additions and 1 deletions
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1
.gitignore vendored Normal file
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@ -0,0 +1 @@
/crash-trace-command-2.0.tar.gz

121
0001-Fixes-for-the-trace.so-extension-module.patch Normal file
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@ -0,0 +1,121 @@
From 2ed07609b2a8ed19ce3dda7a50b18373a6a8bd5c Mon Sep 17 00:00:00 2001
From: Dave Anderson <anderson@redhat.com>
Date: Mon, 25 Mar 2019 11:48:39 -0400
Subject: [PATCH 1/3] Fixes for the "trace.so" extension module: (1) The
reader_page can be empty if it was never read, do not record it if it is
empty. Better yet, do not record any page that is empty. The struct
buffer_page "real_end" is not available in older kernels, so it needs to
be tested if it exists before we can use it. (2) In newer kernels, the
sp->type of kernel module symbols does not contain the symbol type
character unless the module's debuginfo data has been loaded into the
crash session. Writing a garbage type to the kallsyms file for trace-cmd
to read causes it to crash, so just always write an 'm'. (3) Add the
"trace dump -t <trace.dat>" option to the SYNOPSIS line of the help page.
(rostedt@goodmis.org)
---
trace.c | 32 +++++++++++++++++++++++++++++---
1 file changed, 29 insertions(+), 3 deletions(-)
diff --git a/trace.c b/trace.c
index ad71951e8740..c26b6c7ec475 100644
--- a/trace.c
+++ b/trace.c
@@ -43,6 +43,11 @@ static int max_buffer_available;
*/
static int multiple_instances_available;
+/*
+ * buffer_page has "real_end"
+ */
+static int buffer_page_real_end_available;
+
#define koffset(struct, member) struct##_##member##_offset
static int koffset(trace_array, current_trace);
@@ -70,6 +75,7 @@ static int koffset(ring_buffer_per_cpu, entries);
static int koffset(buffer_page, read);
static int koffset(buffer_page, list);
static int koffset(buffer_page, page);
+static int koffset(buffer_page, real_end);
static int koffset(list_head, next);
@@ -229,6 +235,7 @@ static int init_offsets(void)
init_offset(buffer_page, read);
init_offset(buffer_page, list);
init_offset(buffer_page, page);
+ init_offset(buffer_page, real_end);
init_offset(list_head, next);
@@ -281,6 +288,7 @@ static void print_offsets(void)
print_offset(buffer_page, read);
print_offset(buffer_page, list);
print_offset(buffer_page, page);
+ print_offset(buffer_page, real_end);
print_offset(list_head, next);
@@ -295,6 +303,20 @@ static void print_offsets(void)
#undef print_offset
}
+static int buffer_page_has_data(ulong page)
+{
+ uint end;
+
+ if (!buffer_page_real_end_available)
+ return 1;
+
+ /* Only write pages with data in it */
+ read_value(end, page, buffer_page, real_end);
+ return end;
+out_fail:
+ return 0;
+}
+
static int ftrace_init_pages(struct ring_buffer_per_cpu *cpu_buffer,
unsigned nr_pages)
{
@@ -361,7 +383,8 @@ static int ftrace_init_pages(struct ring_buffer_per_cpu *cpu_buffer,
/* Setup linear pages */
- cpu_buffer->linear_pages[count++] = cpu_buffer->reader_page;
+ if (buffer_page_has_data(cpu_buffer->reader_page))
+ cpu_buffer->linear_pages[count++] = cpu_buffer->reader_page;
if (cpu_buffer->reader_page == cpu_buffer->commit_page)
goto done;
@@ -647,6 +670,8 @@ static int ftrace_init(void)
ftrace_trace_arrays = sym_ftrace_trace_arrays->value;
}
+ if (MEMBER_EXISTS("buffer_page", "real_end"))
+ buffer_page_real_end_available = 1;
if (MEMBER_EXISTS("trace_array", "current_trace")) {
encapsulated_current_trace = 1;
@@ -1809,7 +1834,7 @@ static void cmd_ftrace(void)
static char *help_ftrace[] = {
"trace",
"show or dump the tracing info",
-"[ <show [-c <cpulist>] [-f [no]<flagname>]> | <dump [-sm] <dest-dir>> ]",
+"[ <show [-c <cpulist>] [-f [no]<flagname>]> | <dump [-sm] <dest-dir>> ] | <dump -t <trace.dat> ]",
"trace",
" shows the current tracer and other informations.",
"",
@@ -2184,7 +2209,8 @@ static int save_proc_kallsyms(int fd)
if (!strncmp(sp->name, "_MODULE_", strlen("_MODULE_")))
continue;
- tmp_fprintf("%lx %c %s\t[%s]\n", sp->value, sp->type,
+ /* Currently sp->type for modules is not trusted */
+ tmp_fprintf("%lx %c %s\t[%s]\n", sp->value, 'm',
sp->name, lm->mod_name);
}
}
--
2.17.1

139
0002-extensions-trace-Rename-trace_buffer-to-array_buffer.patch Normal file
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@ -0,0 +1,139 @@
From c4cdbe3c18bca496dc6b4af17e2637379528ad02 Mon Sep 17 00:00:00 2001
From: Valentin Schneider <valentin.schneider@arm.com>
Date: Thu, 3 Sep 2020 21:28:46 +0100
Subject: [PATCH 2/3] extensions/trace: Rename trace_buffer to array_buffer
This renaming is present from Linux v5.6 upwards, and was introduced by
commit:
1c5eb4481e01 ("tracing: Rename trace_buffer to array_buffer")
Rename the internal references from trace_buffer to array_buffer. Backwards
compatibility with older kernels is provided by checking whether struct
trace_array has an array_buffer field - should that not be the case, the
old naming scheme is used instead.
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
---
trace.c | 53 +++++++++++++++++++++++++++++++++++------------------
1 file changed, 35 insertions(+), 18 deletions(-)
diff --git a/trace.c b/trace.c
index c26b6c7ec475..2cea5b2d650a 100644
--- a/trace.c
+++ b/trace.c
@@ -31,9 +31,9 @@ static int per_cpu_buffer_sizes;
*/
static int encapsulated_current_trace;
/*
- * trace_buffer is supported
+ * array_buffer (trace_buffer pre v5.6) is supported
*/
-static int trace_buffer_available;
+static int array_buffer_available;
/*
* max_buffer is supported
*/
@@ -51,9 +51,9 @@ static int buffer_page_real_end_available;
#define koffset(struct, member) struct##_##member##_offset
static int koffset(trace_array, current_trace);
-static int koffset(trace_array, trace_buffer);
+static int koffset(trace_array, array_buffer);
static int koffset(trace_array, max_buffer);
-static int koffset(trace_buffer, buffer);
+static int koffset(array_buffer, buffer);
static int koffset(trace_array, buffer);
static int koffset(tracer, name);
@@ -117,7 +117,7 @@ static ulong max_tr_trace;
struct trace_instance {
char name[NAME_MAX + 1];
- ulong trace_buffer;
+ ulong array_buffer;
ulong max_buffer;
ulong ring_buffer;
unsigned pages;
@@ -174,8 +174,7 @@ static int write_and_check(int fd, void *data, size_t size)
static int init_offsets(void)
{
-#define init_offset(struct, member) do { \
- koffset(struct, member) = MEMBER_OFFSET(#struct, #member);\
+#define check_offset(struct, member) do { \
if (koffset(struct, member) < 0) { \
fprintf(fp, "failed to init the offset, struct:"\
#struct ", member:" #member); \
@@ -184,12 +183,29 @@ static int init_offsets(void)
} \
} while (0)
+#define init_offset(struct, member) do { \
+ koffset(struct, member) = MEMBER_OFFSET(#struct, #member); \
+ check_offset(struct, member); \
+ } while (0)
+
+#define init_offset_alternative(struct, member, alt_struct, alt_member) do { \
+ koffset(struct, member) = MEMBER_OFFSET(#alt_struct, #alt_member); \
+ check_offset(struct, member); \
+ } while (0)
+
if (encapsulated_current_trace)
init_offset(trace_array, current_trace);
- if (trace_buffer_available) {
- init_offset(trace_array, trace_buffer);
- init_offset(trace_buffer, buffer);
+ if (array_buffer_available) {
+ if (MEMBER_EXISTS("trace_array", "array_buffer")) {
+ init_offset(trace_array, array_buffer);
+ init_offset(array_buffer, buffer);
+ } else {
+ init_offset_alternative(trace_array, array_buffer,
+ trace_array, trace_buffer);
+ init_offset_alternative(array_buffer, buffer,
+ trace_buffer, buffer);
+ }
if (max_buffer_available)
init_offset(trace_array, max_buffer);
@@ -486,17 +502,17 @@ out_fail:
static int ftrace_init_trace(struct trace_instance *ti, ulong instance_addr)
{
- if (trace_buffer_available) {
- ti->trace_buffer = instance_addr +
- koffset(trace_array, trace_buffer);
- read_value(ti->ring_buffer, ti->trace_buffer,
- trace_buffer, buffer);
+ if (array_buffer_available) {
+ ti->array_buffer = instance_addr +
+ koffset(trace_array, array_buffer);
+ read_value(ti->ring_buffer, ti->array_buffer,
+ array_buffer, buffer);
if (max_buffer_available) {
ti->max_buffer = instance_addr +
koffset(trace_array, max_buffer);
read_value(ti->max_tr_ring_buffer, ti->max_buffer,
- trace_buffer, buffer);
+ array_buffer, buffer);
}
} else {
read_value(ti->ring_buffer, instance_addr, trace_array, buffer);
@@ -683,8 +699,9 @@ static int ftrace_init(void)
current_trace = sym_current_trace->value;
}
- if (MEMBER_EXISTS("trace_array", "trace_buffer")) {
- trace_buffer_available = 1;
+ if (MEMBER_EXISTS("trace_array", "array_buffer") ||
+ MEMBER_EXISTS("trace_array", "trace_buffer")) {
+ array_buffer_available = 1;
if (MEMBER_EXISTS("trace_array", "max_buffer"))
max_buffer_available = 1;
--
2.17.1

139
0003-extensions-trace-Rename-ring_buffer-to-trace_buffer.patch Normal file
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@ -0,0 +1,139 @@
From 1d4357ba0e0e1ec8267c32855aec5fe5abbcfec8 Mon Sep 17 00:00:00 2001
From: Valentin Schneider <valentin.schneider@arm.com>
Date: Thu, 3 Sep 2020 21:28:47 +0100
Subject: [PATCH 3/3] extensions/trace: Rename ring_buffer to trace_buffer
This renaming is present from Linux v5.6 upwards, and was introduced by
commit:
13292494379f ("tracing: Make struct ring_buffer less ambiguous")
Rename the internal references from ring_buffer to trace_buffer. Backwards
compatibility with older kernels is provided by checking whether struct
trace_buffer has a buffer field of type struct ring buffer - should that
not be the case, the newer naming scheme is used instead.
Signed-off-by: Valentin Schneider <valentin.schneider@arm.com>
---
trace.c | 50 +++++++++++++++++++++++++++++---------------------
1 file changed, 29 insertions(+), 21 deletions(-)
diff --git a/trace.c b/trace.c
index 2cea5b2d650a..c33907f98b00 100644
--- a/trace.c
+++ b/trace.c
@@ -57,10 +57,10 @@ static int koffset(array_buffer, buffer);
static int koffset(trace_array, buffer);
static int koffset(tracer, name);
-static int koffset(ring_buffer, pages);
-static int koffset(ring_buffer, flags);
-static int koffset(ring_buffer, cpus);
-static int koffset(ring_buffer, buffers);
+static int koffset(trace_buffer, pages);
+static int koffset(trace_buffer, flags);
+static int koffset(trace_buffer, cpus);
+static int koffset(trace_buffer, buffers);
static int koffset(ring_buffer_per_cpu, cpu);
static int koffset(ring_buffer_per_cpu, pages);
@@ -119,7 +119,7 @@ struct trace_instance {
char name[NAME_MAX + 1];
ulong array_buffer;
ulong max_buffer;
- ulong ring_buffer;
+ ulong trace_buffer;
unsigned pages;
struct ring_buffer_per_cpu *buffers;
@@ -225,11 +225,19 @@ static int init_offsets(void)
else if (kernel_symbol_exists("ring_buffer_read"))
gdb_set_crash_scope(symbol_value("ring_buffer_read"), "ring_buffer_read");
- if (!per_cpu_buffer_sizes)
- init_offset(ring_buffer, pages);
- init_offset(ring_buffer, flags);
- init_offset(ring_buffer, cpus);
- init_offset(ring_buffer, buffers);
+ if (STREQ(MEMBER_TYPE_NAME("trace_buffer", "buffer"), "ring_buffer")) {
+ if (!per_cpu_buffer_sizes)
+ init_offset_alternative(trace_buffer, pages, ring_buffer, pages);
+ init_offset_alternative(trace_buffer, flags, ring_buffer, flags);
+ init_offset_alternative(trace_buffer, cpus, ring_buffer, cpus);
+ init_offset_alternative(trace_buffer, buffers, ring_buffer, buffers);
+ } else {
+ if (!per_cpu_buffer_sizes)
+ init_offset(trace_buffer, pages);
+ init_offset(trace_buffer, flags);
+ init_offset(trace_buffer, cpus);
+ init_offset(trace_buffer, buffers);
+ }
if (MEMBER_SIZE("ring_buffer_per_cpu", "pages") == sizeof(ulong)) {
lockless_ring_buffer = 1;
@@ -287,10 +295,10 @@ static void print_offsets(void)
print_offset(trace_array, buffer);
print_offset(tracer, name);
- print_offset(ring_buffer, pages);
- print_offset(ring_buffer, flags);
- print_offset(ring_buffer, cpus);
- print_offset(ring_buffer, buffers);
+ print_offset(trace_buffer, pages);
+ print_offset(trace_buffer, flags);
+ print_offset(trace_buffer, cpus);
+ print_offset(trace_buffer, buffers);
print_offset(ring_buffer_per_cpu, cpu);
print_offset(ring_buffer_per_cpu, pages);
@@ -445,12 +453,12 @@ static void ftrace_destroy_buffers(struct ring_buffer_per_cpu *buffers)
}
static int ftrace_init_buffers(struct ring_buffer_per_cpu *buffers,
- ulong ring_buffer, unsigned pages)
+ ulong trace_buffer, unsigned pages)
{
int i;
ulong buffers_array;
- read_value(buffers_array, ring_buffer, ring_buffer, buffers);
+ read_value(buffers_array, trace_buffer, trace_buffer, buffers);
for (i = 0; i < nr_cpu_ids; i++) {
if (!readmem(buffers_array + sizeof(ulong) * i, KVADDR,
@@ -505,7 +513,7 @@ static int ftrace_init_trace(struct trace_instance *ti, ulong instance_addr)
if (array_buffer_available) {
ti->array_buffer = instance_addr +
koffset(trace_array, array_buffer);
- read_value(ti->ring_buffer, ti->array_buffer,
+ read_value(ti->trace_buffer, ti->array_buffer,
array_buffer, buffer);
if (max_buffer_available) {
@@ -515,19 +523,19 @@ static int ftrace_init_trace(struct trace_instance *ti, ulong instance_addr)
array_buffer, buffer);
}
} else {
- read_value(ti->ring_buffer, instance_addr, trace_array, buffer);
- read_value(ti->pages, ti->ring_buffer, ring_buffer, pages);
+ read_value(ti->trace_buffer, instance_addr, trace_array, buffer);
+ read_value(ti->pages, ti->trace_buffer, trace_buffer, pages);
read_value(ti->max_tr_ring_buffer, max_tr_trace, trace_array, buffer);
if (ti->max_tr_ring_buffer)
- read_value(ti->max_tr_pages, ti->max_tr_ring_buffer, ring_buffer, pages);
+ read_value(ti->max_tr_pages, ti->max_tr_ring_buffer, trace_buffer, pages);
}
ti->buffers = calloc(sizeof(*ti->buffers), nr_cpu_ids);
if (ti->buffers == NULL)
goto out_fail;
- if (ftrace_init_buffers(ti->buffers, ti->ring_buffer,
+ if (ftrace_init_buffers(ti->buffers, ti->trace_buffer,
ti->pages) < 0)
goto out_fail;
--
2.17.1

13
ARM64.patch Normal file
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@ -0,0 +1,13 @@
--- crash-trace-command-2.0/Makefile.orig
+++ crash-trace-command-2.0/Makefile
@@ -22,6 +22,10 @@ ifeq ($(shell arch), s390)
TARGET=S390
TARGET_CFLAGS=
endif
+ifeq ($(shell arch), aarch64)
+ TARGET=ARM64
+ TARGET_CFLAGS=
+endif
INCDIR=/usr/include/crash

1
EMPTY
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@ -1 +0,0 @@

743
TRACE_EVENT_FL_TRACEPOINT_flag.patch Normal file
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@ -0,0 +1,743 @@
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -38,6 +38,10 @@ static int trace_buffer_available;
* max_buffer is supported
*/
static int max_buffer_available;
+/*
+ * multiple trace instances are supported
+ */
+static int multiple_instances_available;
#define koffset(struct, member) struct##_##member##_offset
@@ -78,6 +82,8 @@ static int koffset(ftrace_event_field, o
static int koffset(ftrace_event_field, size);
static int koffset(ftrace_event_field, is_signed);
+static int koffset(trace_array, name);
+
static int koffset(POINTER_SYM, POINTER) = 0;
struct ring_buffer_per_cpu {
@@ -101,16 +107,25 @@ struct ring_buffer_per_cpu {
};
static ulong global_trace;
-static ulong global_trace_buffer;
-static ulong global_max_buffer;
-static ulong global_ring_buffer;
-static unsigned global_pages;
-static struct ring_buffer_per_cpu *global_buffers;
-
static ulong max_tr_trace;
-static ulong max_tr_ring_buffer;
-static unsigned max_tr_pages;
-static struct ring_buffer_per_cpu *max_tr_buffers;
+
+struct trace_instance {
+ char name[NAME_MAX + 1];
+ ulong trace_buffer;
+ ulong max_buffer;
+ ulong ring_buffer;
+ unsigned pages;
+ struct ring_buffer_per_cpu *buffers;
+
+ ulong max_tr_ring_buffer;
+ unsigned max_tr_pages;
+ struct ring_buffer_per_cpu *max_tr_buffers;
+};
+
+static ulong ftrace_trace_arrays;
+static struct trace_instance global_trace_instance;
+static struct trace_instance *trace_instances = NULL;
+static int instance_count;
static ulong ftrace_events;
static ulong current_trace;
@@ -229,6 +244,9 @@ static int init_offsets(void)
init_offset(ftrace_event_field, size);
init_offset(ftrace_event_field, is_signed);
+ if (MEMBER_EXISTS("trace_array", "name"))
+ init_offset(trace_array, name);
+
return 0;
#undef init_offset
}
@@ -435,61 +453,140 @@ out_fail:
return -1;
}
-static int ftrace_int_global_trace(void)
+static int ftrace_init_trace(struct trace_instance *ti, ulong instance_addr)
{
if (trace_buffer_available) {
- global_trace_buffer = global_trace + koffset(trace_array, trace_buffer);
- read_value(global_ring_buffer, global_trace_buffer, trace_buffer, buffer);
+ ti->trace_buffer = instance_addr +
+ koffset(trace_array, trace_buffer);
+ read_value(ti->ring_buffer, ti->trace_buffer,
+ trace_buffer, buffer);
+
+ if (max_buffer_available) {
+ ti->max_buffer = instance_addr +
+ koffset(trace_array, max_buffer);
+ read_value(ti->max_tr_ring_buffer, ti->max_buffer,
+ trace_buffer, buffer);
+ }
} else {
- read_value(global_ring_buffer, global_trace, trace_array, buffer);
- read_value(global_pages, global_ring_buffer, ring_buffer, pages);
+ read_value(ti->ring_buffer, instance_addr, trace_array, buffer);
+ read_value(ti->pages, ti->ring_buffer, ring_buffer, pages);
+
+ read_value(ti->max_tr_ring_buffer, max_tr_trace, trace_array, buffer);
+ if (ti->max_tr_ring_buffer)
+ read_value(ti->max_tr_pages, ti->max_tr_ring_buffer, ring_buffer, pages);
}
- global_buffers = calloc(sizeof(*global_buffers), nr_cpu_ids);
- if (global_buffers == NULL)
+ ti->buffers = calloc(sizeof(*ti->buffers), nr_cpu_ids);
+ if (ti->buffers == NULL)
+ goto out_fail;
+
+ if (ftrace_init_buffers(ti->buffers, ti->ring_buffer,
+ ti->pages) < 0)
+ goto out_fail;
+
+ if (!ti->max_tr_ring_buffer)
+ return 0;
+
+ ti->max_tr_buffers = calloc(sizeof(*ti->max_tr_buffers), nr_cpu_ids);
+ if (ti->max_tr_buffers == NULL)
goto out_fail;
- if (ftrace_init_buffers(global_buffers, global_ring_buffer,
- global_pages) < 0)
+ if (ftrace_init_buffers(ti->max_tr_buffers, ti->max_tr_ring_buffer,
+ ti->max_tr_pages) < 0)
goto out_fail;
return 0;
out_fail:
- free(global_buffers);
+ free(ti->max_tr_buffers);
+ free(ti->buffers);
return -1;
}
-static int ftrace_int_max_tr_trace(void)
+static void ftrace_destroy_all_instance_buffers()
{
- if (trace_buffer_available) {
- if (!max_buffer_available)
- return 0;
+ int i;
- global_max_buffer = global_trace + koffset(trace_array, max_buffer);
- read_value(max_tr_ring_buffer, global_max_buffer, trace_buffer, buffer);
- } else {
- read_value(max_tr_ring_buffer, max_tr_trace, trace_array, buffer);
+ for (i = 0; i < instance_count; i++)
+ {
+ struct trace_instance *ti = &trace_instances[i];
- if (!max_tr_ring_buffer)
- return 0;
+ if (ti->max_tr_ring_buffer) {
+ ftrace_destroy_buffers(ti->max_tr_buffers);
+ free(ti->max_tr_buffers);
+ }
- read_value(max_tr_pages, max_tr_ring_buffer, ring_buffer, pages);
+ ftrace_destroy_buffers(ti->buffers);
+ free(ti->buffers);
}
+}
- max_tr_buffers = calloc(sizeof(*max_tr_buffers), nr_cpu_ids);
- if (max_tr_buffers == NULL)
- goto out_fail;
+static void ftrace_destroy_instances()
+{
+ ftrace_destroy_all_instance_buffers();
+ free(trace_instances);
+}
- if (ftrace_init_buffers(max_tr_buffers, max_tr_ring_buffer,
- max_tr_pages) < 0)
- goto out_fail;
+static int ftrace_init_instances()
+{
+ int i;
+ struct trace_instance *ti;
+ struct list_data list_data;
+ struct list_data *ld = &list_data;
+
+ if (!multiple_instances_available)
+ return 0;
+
+ BZERO(ld, sizeof(struct list_data));
+ ld->start = ftrace_trace_arrays;
+ ld->end = global_trace;
+ ld->flags = LIST_ALLOCATE;
+ instance_count = do_list(ld);
+
+ /* The do_list count includes the list_head, which is not a
+ * proper instance */
+ instance_count--;
+ if (instance_count <= 0)
+ return 0;
+
+ trace_instances = calloc(sizeof(struct trace_instance), instance_count);
+
+ /* We start i at 1 to skip over the list_head and continue to the last
+ * instance, which lies at index instance_count */
+ for (i = 1; i <= instance_count; i++)
+ {
+ ulong instance_ptr;
+ ulong name_addr;
+ int ret;
+
+ ti = &trace_instances[i-1];
+ instance_ptr = ld->list_ptr[i];
+ read_value(name_addr, instance_ptr, trace_array, name);
+ if (!name_addr)
+ {
+ console("Instance name is NULL\n");
+ }
+ else if (!read_string(name_addr, ti->name, sizeof(ti->name)))
+ {
+ console("Failed to read instance name at address %p\n", (void*)name_addr);
+ goto out_fail;
+ }
+
+ ret = ftrace_init_trace(ti, instance_ptr);
+ if (ret < 0)
+ goto out_fail;
+ }
+ FREEBUF(ld->list_ptr);
return 0;
out_fail:
- free(max_tr_buffers);
- max_tr_ring_buffer = 0;
+ /* We've already freed the current instance's trace buffer info, so
+ * we'll clear that out to avoid double freeing in
+ * ftrace_destroy_instances() */
+ BZERO(ti, sizeof(struct trace_instance));
+ ftrace_destroy_instances();
+
return -1;
}
@@ -504,7 +601,7 @@ static int ftrace_init_current_tracer(vo
} else {
read_value(addr, current_trace, POINTER_SYM, POINTER);
}
-
+
read_value(addr, addr, tracer, name);
read_string(addr, tmp, 128);
@@ -524,9 +621,11 @@ static int ftrace_init(void)
struct syment *sym_max_tr_trace;
struct syment *sym_ftrace_events;
struct syment *sym_current_trace;
+ struct syment *sym_ftrace_trace_arrays;
sym_global_trace = symbol_search("global_trace");
sym_ftrace_events = symbol_search("ftrace_events");
+ sym_ftrace_trace_arrays = symbol_search("ftrace_trace_arrays");
if (sym_global_trace == NULL || sym_ftrace_events == NULL)
return -1;
@@ -534,6 +633,13 @@ static int ftrace_init(void)
global_trace = sym_global_trace->value;
ftrace_events = sym_ftrace_events->value;
+ if (sym_ftrace_trace_arrays)
+ {
+ multiple_instances_available = 1;
+ ftrace_trace_arrays = sym_ftrace_trace_arrays->value;
+ }
+
+
if (MEMBER_EXISTS("trace_array", "current_trace")) {
encapsulated_current_trace = 1;
} else {
@@ -564,28 +670,31 @@ static int ftrace_init(void)
return -1;
print_offsets();
- if (ftrace_int_global_trace() < 0)
+ if (ftrace_init_trace(&global_trace_instance, global_trace) < 0)
goto out_0;
- ftrace_int_max_tr_trace();
+ if (ftrace_init_instances() < 0)
+ goto out_1;
if (ftrace_init_event_types() < 0)
- goto out_1;
+ goto out_2;
if (ftrace_init_current_tracer() < 0)
- goto out_2;
+ goto out_3;
return 0;
-out_2:
+out_3:
ftrace_destroy_event_types();
+out_2:
+ ftrace_destroy_instances();
out_1:
- if (max_tr_ring_buffer) {
- ftrace_destroy_buffers(max_tr_buffers);
- free(max_tr_buffers);
+ if (global_trace_instance.max_tr_ring_buffer) {
+ ftrace_destroy_buffers(global_trace_instance.max_tr_buffers);
+ free(global_trace_instance.max_tr_buffers);
}
- ftrace_destroy_buffers(global_buffers);
- free(global_buffers);
+ ftrace_destroy_buffers(global_trace_instance.buffers);
+ free(global_trace_instance.buffers);
out_0:
return -1;
}
@@ -595,13 +704,15 @@ static void ftrace_destroy(void)
free(current_tracer_name);
ftrace_destroy_event_types();
- if (max_tr_ring_buffer) {
- ftrace_destroy_buffers(max_tr_buffers);
- free(max_tr_buffers);
+ ftrace_destroy_instances();
+
+ if (global_trace_instance.max_tr_ring_buffer) {
+ ftrace_destroy_buffers(global_trace_instance.max_tr_buffers);
+ free(global_trace_instance.max_tr_buffers);
}
- ftrace_destroy_buffers(global_buffers);
- free(global_buffers);
+ ftrace_destroy_buffers(global_trace_instance.buffers);
+ free(global_trace_instance.buffers);
}
static int ftrace_dump_page(int fd, ulong page, void *page_tmp)
@@ -652,7 +763,8 @@ static int try_mkdir(const char *pathnam
return 0;
}
-static int ftrace_dump_buffers(const char *per_cpu_path)
+static int ftrace_dump_buffers(const char *per_cpu_path,
+ struct trace_instance *ti)
{
int i;
void *page_tmp;
@@ -664,7 +776,7 @@ static int ftrace_dump_buffers(const cha
return -1;
for (i = 0; i < nr_cpu_ids; i++) {
- struct ring_buffer_per_cpu *cpu_buffer = &global_buffers[i];
+ struct ring_buffer_per_cpu *cpu_buffer = &ti->buffers[i];
if (!cpu_buffer->kaddr)
continue;
@@ -679,7 +791,7 @@ static int ftrace_dump_buffers(const cha
if (fd < 0)
goto out_fail;
- ftrace_dump_buffer(fd, cpu_buffer, global_pages, page_tmp);
+ ftrace_dump_buffer(fd, cpu_buffer, ti->pages, page_tmp);
close(fd);
}
@@ -1015,8 +1127,6 @@ static void ftrace_destroy_event_types(v
free(ftrace_common_fields);
}
-#define TRACE_EVENT_FL_TRACEPOINT 0x40
-
static
int ftrace_get_event_type_name(ulong call, char *name, int len)
{
@@ -1024,34 +1134,35 @@ int ftrace_get_event_type_name(ulong cal
static int name_offset;
static int flags_offset;
static int tp_name_offset;
- uint flags;
+ static long tracepoint_flag;
+ uint flags;
ulong name_addr;
if (inited)
goto work;
- inited = 1;
- name_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "name"),
- MEMBER_OFFSET("trace_event_call", "name"));
- if (name_offset >= 0)
- goto work;
-
- name_offset = MAX(ANON_MEMBER_OFFSET("ftrace_event_call", "name"),
- ANON_MEMBER_OFFSET("trace_event_call", "name"));
- if (name_offset < 0)
- return -1;
+ name_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "tp"),
+ MEMBER_OFFSET("trace_event_call", "tp"));
+ if (name_offset >= 0) {
+ flags_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "flags"),
+ MEMBER_OFFSET("trace_event_call", "flags"));
+ if (flags_offset < 0)
+ return -1;
- flags_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "flags"),
- MEMBER_OFFSET("trace_event_call", "flags"));
- if (flags_offset < 0)
- return -1;
+ tp_name_offset = MEMBER_OFFSET("tracepoint", "name");
+ if (tp_name_offset < 0)
+ return -1;
- tp_name_offset = MEMBER_OFFSET("tracepoint", "name");
- if (tp_name_offset < 0)
- return -1;
+ if (!enumerator_value("TRACE_EVENT_FL_TRACEPOINT", &tracepoint_flag))
+ return -1;
- inited = 2;
+ inited = 2;
+ } else {
+ name_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "name"),
+ MEMBER_OFFSET("trace_event_call", "name"));
+ inited = 1;
+ }
work:
if (name_offset < 0)
@@ -1067,7 +1178,7 @@ work:
RETURN_ON_ERROR))
return -1;
- if (flags & TRACE_EVENT_FL_TRACEPOINT) {
+ if (flags & (uint)tracepoint_flag) {
if (!readmem(name_addr + tp_name_offset, KVADDR,
&name_addr, sizeof(name_addr),
"read tracepoint name", RETURN_ON_ERROR))
@@ -1476,26 +1587,72 @@ static int dump_kallsyms(const char *dum
static int trace_cmd_data_output(int fd);
+#define FTRACE_DUMP_SYMBOLS (1 << 0)
+#define FTRACE_DUMP_META_DATA (1 << 1)
+
+static int populate_ftrace_dir_tree(struct trace_instance *ti,
+ char *root, uint flags)
+{
+ char path[PATH_MAX];
+ int ret;
+
+ ret = mkdir(root, 0755);
+ if (ret < 0) {
+ if (errno == EEXIST)
+ error(INFO, "mkdir: %s exists\n", root);
+ return FALSE;
+ }
+
+ snprintf(path, sizeof(path), "%s/per_cpu", root);
+ if (try_mkdir(path, 0755) < 0)
+ return FALSE;
+
+ if (ftrace_dump_buffers(path, ti) < 0)
+ return FALSE;
+
+ if (flags & FTRACE_DUMP_META_DATA) {
+ /* Dump event types */
+ snprintf(path, sizeof(path), "%s/events", root);
+ if (try_mkdir(path, 0755) < 0)
+ return FALSE;
+
+ if (ftrace_dump_event_types(path) < 0)
+ return FALSE;
+
+ /* Dump pids with corresponding cmdlines */
+ if (dump_saved_cmdlines(root) < 0)
+ return FALSE;
+ }
+
+ if (flags & FTRACE_DUMP_SYMBOLS) {
+ /* Dump all symbols of the kernel */
+ dump_kallsyms(root);
+ }
+
+ return TRUE;
+}
+
static void ftrace_dump(int argc, char *argv[])
{
int c;
- int dump_meta_data = 0;
- int dump_symbols = 0;
+ int i;
+ uint flags = 0;
char *dump_tracing_dir;
- char path[PATH_MAX];
- int ret;
+ char instance_path[PATH_MAX];
while ((c = getopt(argc, argv, "smt")) != EOF) {
switch(c)
{
case 's':
- dump_symbols = 1;
+ flags |= FTRACE_DUMP_SYMBOLS;
break;
case 'm':
- dump_meta_data = 1;
+ flags |= FTRACE_DUMP_META_DATA;
break;
case 't':
- if (dump_symbols || dump_meta_data || argc - optind > 1)
+ if (flags & FTRACE_DUMP_SYMBOLS ||
+ flags & FTRACE_DUMP_META_DATA ||
+ argc - optind > 1)
cmd_usage(pc->curcmd, SYNOPSIS);
else {
char *trace_dat = "trace.dat";
@@ -1526,38 +1683,34 @@ static void ftrace_dump(int argc, char *
return;
}
- ret = mkdir(dump_tracing_dir, 0755);
- if (ret < 0) {
- if (errno == EEXIST)
- error(INFO, "mkdir: %s exists\n", dump_tracing_dir);
+ if (!populate_ftrace_dir_tree(&global_trace_instance, dump_tracing_dir, flags))
return;
- }
- snprintf(path, sizeof(path), "%s/per_cpu", dump_tracing_dir);
- if (try_mkdir(path, 0755) < 0)
+ if (!multiple_instances_available || instance_count == 0)
return;
- if (ftrace_dump_buffers(path) < 0)
+ /* Create an instances directory, and dump instance data in there */
+ snprintf(instance_path, sizeof(instance_path),
+ "%s/instances", dump_tracing_dir);
+ if (try_mkdir(instance_path, 0755) < 0)
return;
- if (dump_meta_data) {
- /* Dump event types */
- snprintf(path, sizeof(path), "%s/events", dump_tracing_dir);
- if (try_mkdir(path, 0755) < 0)
- return;
+ /* Don't care about the flags anymore */
+ flags = 0;
- if (ftrace_dump_event_types(path) < 0)
- return;
+ for (i = 0; i < instance_count; i++)
+ {
+ struct trace_instance *ti = &trace_instances[i];
+
+ snprintf(instance_path, sizeof(instance_path),
+ "%s/instances/%s", dump_tracing_dir,
+ ti->name);
- /* Dump pids with corresponding cmdlines */
- if (dump_saved_cmdlines(dump_tracing_dir) < 0)
- return;
+ if (populate_ftrace_dir_tree(ti, instance_path, flags) < 0)
+ break;
}
- if (dump_symbols) {
- /* Dump all symbols of the kernel */
- dump_kallsyms(dump_tracing_dir);
- }
+ return;
}
static void ftrace_show(int argc, char *argv[])
@@ -2161,26 +2314,69 @@ static int save_ftrace_cmdlines(int fd)
return tmp_file_flush(fd);
}
-static int save_res_data(int fd, int nr_cpu_buffers)
+/* From trace-cmd.h */
+enum {
+ TRACECMD_OPTION_DONE, /* 0 */
+ TRACECMD_OPTION_DATE, /* 1 */
+ TRACECMD_OPTION_CPUSTAT, /* 2 */
+ TRACECMD_OPTION_BUFFER, /* 3 */
+ TRACECMD_OPTION_TRACECLOCK, /* 4 */
+ TRACECMD_OPTION_UNAME, /* 5 */
+ TRACECMD_OPTION_HOOK, /* 6 */
+};
+
+static int write_options(int fd, unsigned long long *buffer_offsets)
{
- unsigned short option = 0;
+ int i;
+ unsigned short option;
- if (write_and_check(fd, &nr_cpu_buffers, 4))
- return -1;
+ if (!multiple_instances_available)
+ return 0;
if (write_and_check(fd, "options ", 10))
return -1;
+ option = TRACECMD_OPTION_BUFFER;
+ for (i = 0; i < instance_count; i++)
+ {
+ char *name = trace_instances[i].name;
+ size_t name_size = strlen(name) + 1; /* Name length + '\0' */
+ unsigned long long option_size = 8 + name_size;
+ unsigned long long offset;
+
+ offset = buffer_offsets ? buffer_offsets[i] : 0;
+ if (write_and_check(fd, &option, 2))
+ return -1;
+ if (write_and_check(fd, &option_size, 4))
+ return -1;
+ if (write_and_check(fd, &offset, 8))
+ return -1;
+ if (write_and_check(fd, name, name_size))
+ return -1;
+ }
+
+ option = TRACECMD_OPTION_DONE;
if (write_and_check(fd, &option, 2))
return -1;
+ return 0;
+}
+
+static int save_res_data(int fd, int nr_cpu_buffers, unsigned long long *buffer_offsets)
+{
+ if (write_and_check(fd, &nr_cpu_buffers, 4))
+ return -1;
+
+ if (write_options(fd, buffer_offsets))
+ return -1;
+
if (write_and_check(fd, "flyrecord", 10))
return -1;
return 0;
}
-static int save_record_data(int fd, int nr_cpu_buffers)
+static int save_record_data(int fd, int nr_cpu_buffers, struct trace_instance *ti)
{
int i, j;
unsigned long long offset, buffer_offset;
@@ -2192,7 +2388,7 @@ static int save_record_data(int fd, int
buffer_offset = offset;
for (i = 0; i < nr_cpu_ids; i++) {
- struct ring_buffer_per_cpu *cpu_buffer = &global_buffers[i];
+ struct ring_buffer_per_cpu *cpu_buffer = &ti->buffers[i];
unsigned long long buffer_size;
if (!cpu_buffer->kaddr)
@@ -2212,7 +2408,7 @@ static int save_record_data(int fd, int
lseek(fd, offset, SEEK_SET);
for (i = 0; i < nr_cpu_ids; i++) {
- struct ring_buffer_per_cpu *cpu_buffer = &global_buffers[i];
+ struct ring_buffer_per_cpu *cpu_buffer = &ti->buffers[i];
if (!cpu_buffer->kaddr)
continue;
@@ -2231,13 +2427,13 @@ static int save_record_data(int fd, int
return 0;
}
-static int __trace_cmd_data_output(int fd)
+static int get_nr_cpu_buffers(struct trace_instance *ti)
{
int i;
int nr_cpu_buffers = 0;
for (i = 0; i < nr_cpu_ids; i++) {
- struct ring_buffer_per_cpu *cpu_buffer = &global_buffers[i];
+ struct ring_buffer_per_cpu *cpu_buffer = &ti->buffers[i];
if (!cpu_buffer->kaddr)
continue;
@@ -2245,6 +2441,19 @@ static int __trace_cmd_data_output(int f
nr_cpu_buffers++;
}
+ return nr_cpu_buffers;
+}
+
+static int __trace_cmd_data_output(int fd)
+{
+ int nr_cpu_buffers;
+ unsigned long long global_res_data_offset;
+ unsigned long long *instance_offsets;
+
+ instance_offsets = calloc(sizeof(unsigned long long), instance_count);
+
+ nr_cpu_buffers = get_nr_cpu_buffers(&global_trace_instance);
+
if (save_initial_data(fd))
return -1;
if (save_header_files(fd))
@@ -2257,9 +2466,38 @@ static int __trace_cmd_data_output(int f
return -1;
if (save_ftrace_cmdlines(fd))
return -1;
- if (save_res_data(fd, nr_cpu_buffers))
+
+ /* We don't have the instance buffer offsets yet, so we'll write in 0s
+ * for now, and fix it up after we have that information available */
+ global_res_data_offset = lseek(fd, 0, SEEK_CUR);
+ if (save_res_data(fd, nr_cpu_buffers, NULL))
return -1;
- if (save_record_data(fd, nr_cpu_buffers))
+ if (save_record_data(fd, nr_cpu_buffers, &global_trace_instance))
+ return -1;
+
+ if (multiple_instances_available)
+ {
+ int i;
+
+ for (i = 0; i < instance_count; i++)
+ {
+ struct trace_instance *ti = &trace_instances[i];
+ nr_cpu_buffers = get_nr_cpu_buffers(ti);
+
+ /* Save off the instance offset for fixup later */
+ instance_offsets[i] = lseek(fd, 0, SEEK_CUR);
+
+ if (write_and_check(fd, "flyrecord", 10))
+ return -1;
+ if (save_record_data(fd, nr_cpu_buffers, ti))
+ return -1;
+ }
+ }
+
+ /* Fix up the global trace's options header with the instance offsets */
+ lseek(fd, global_res_data_offset, SEEK_SET);
+ nr_cpu_buffers = get_nr_cpu_buffers(&global_trace_instance);
+ if (save_res_data(fd, nr_cpu_buffers, instance_offsets))
return -1;
return 0;

26
big_endian_nr_pages.patch Normal file
View File

@ -0,0 +1,26 @@
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -96,7 +96,7 @@ struct ring_buffer_per_cpu {
ulong real_head_page;
int head_page_index;
- unsigned int nr_pages;
+ unsigned long nr_pages;
ulong *pages;
ulong *linear_pages;
@@ -430,7 +432,13 @@ static int ftrace_init_buffers(struct ri
buffer_read_value(overrun);
buffer_read_value(entries);
if (per_cpu_buffer_sizes) {
- buffer_read_value(nr_pages);
+ if (MEMBER_SIZE("ring_buffer_per_cpu", "nr_pages") == sizeof(unsigned int)) {
+ unsigned int tmp_nr_pages;
+ read_value(tmp_nr_pages, buffers[i].kaddr, ring_buffer_per_cpu, nr_pages);
+ buffers[i].nr_pages = (unsigned long) tmp_nr_pages;
+ } else {
+ buffer_read_value(nr_pages);
+ }
pages = buffers[i].nr_pages;
} else
buffers[i].nr_pages = pages;

172
crash-trace-command.spec Normal file
View File

@ -0,0 +1,172 @@
#
# crash core analysis suite
#
Summary: Trace extension module for the crash utility
Name: crash-trace-command
Version: 2.0
Release: 18%{?dist}
License: GPLv2
Group: Development/Debuggers
Source: https://github.com/crash-utility/crash-extensions/blob/master/%{name}-%{version}.tar.gz
URL: https://crash-utility.github.io/extensions.html
# Vendor: Fujitsu Limited
# Packager: Qiao Nuohan <qiaonuohan@cn.fujitsu.com>
ExclusiveOS: Linux
ExclusiveArch: x86_64 %{ix86} ppc64 ia64 s390 s390x aarch64 ppc64le
Buildroot: %{_tmppath}/%{name}-root
BuildRequires: zlib-devel lzo-devel snappy-devel
BuildRequires: crash-devel >= 7.2.0-2
Requires: trace-cmd
Requires: crash >= 7.2.0-2
Patch0: trace_compiler_warnings.patch
Patch1: replace_obsolete_init_and_fini.patch
Patch2: sigsegv_on_calloc_failure.patch
Patch3: initialize_trace_dat.patch
Patch4: ARM64.patch
Patch5: linux_3.10_support.patch
Patch6: ppc64le.patch
Patch7: linux_4.2_support.patch
Patch8: TRACE_EVENT_FL_TRACEPOINT_flag.patch
Patch9: big_endian_nr_pages.patch
Patch10: ppc64_ring_buffer_read.patch
Patch11: rhel8_build.patch
Patch12: ftrace_event_call_rh_data.patch
Patch13: 0001-Fixes-for-the-trace.so-extension-module.patch
Patch14: 0002-extensions-trace-Rename-trace_buffer-to-array_buffer.patch
Patch15: 0003-extensions-trace-Rename-ring_buffer-to-trace_buffer.patch
%description
Command for reading ftrace data from a dumpfile.
%prep
%setup -q -n %{name}-%{version}
%patch0 -p1 -b trace_compiler_warnings.patch
%patch1 -p1 -b replace_obsolete_init_and_fini.patch
%patch2 -p1 -b sigsegv_on_calloc_failure.patch
%patch3 -p1 -b initialize_trace_dat.patch
%patch4 -p1 -b ARM64.patch
%patch5 -p1 -b linux_3.10_support.patch
%patch6 -p1 -b ppc64le.patch
%patch7 -p1 -b linux_4.2_support.patch
%patch8 -p1 -b TRACE_EVENT_FL_TRACEPOINT_flag.patch
%patch9 -p1 -b big_endian_nr_pages.patch
%patch10 -p1 -b ppc64_ring_buffer_read.patch
%patch11 -p1 -b rhel8_build.patch
%patch12 -p1 -b ftrace_event_call_rh_data.patch
%patch13 -p1
%patch14 -p1
%patch15 -p1
%build
make
%install
mkdir -p %{buildroot}%{_libdir}/crash/extensions/
cp %{_builddir}/%{name}-%{version}/trace.so %{buildroot}%{_libdir}/crash/extensions/
%clean
rm -rf %{buildroot}
%files
%defattr(-,root,root)
%{_libdir}/crash/extensions/trace.so
%doc COPYING
%changelog
* Mon Feb 08 2021 Lianbo Jiang <lijiang@redhat.com> - 2.0-18
- Rename trace_buffer to array_buffer
- Rename ring_buffer to trace_buffer
Resolves: rhbz#1925907
* Mon Jul 27 2020 Bhupesh Sharma <bhsharma@redhat.com> - 2.0-17
- Chnage Source/URL to point to the latest github location
Resolves: rhbz#1851746
* Tue Apr 28 2019 Dave Anderson <anderson@redhat.com> - 2.0-16
- Fix for RHEL7 ftrace_event_call data structure change
Resolves: rhbz#1827734
* Wed Sep 19 2018 Dave Anderson <anderson@redhat.com> - 2.0-15
- annocheck: link with -Wl,-z,now
Resolves: rhbz#1630558
* Mon Aug 13 2018 Dave Anderson <anderson@redhat.com> - 2.0-14
- Bump release for mass rebuild
Resolves: rhbz#1615511
* Wed Dec 6 2017 Dave Anderson <anderson@redhat.com> - 2.0.13
- Build requires crash-devel-7.2.0-2 and usage requires crash-7.2.0-2
because of load_module structure change.
Resolves: rhbz#1520825
* Sun Apr 16 2017 Dave Anderson <anderson@redhat.com> - 2.0.12
- Differentiate ppc64 .ring_buffer_read text symbol from ring_buffer_read data symbol
- Fix for ring_buffer_per_cpu.nr_pages size change on big-endian systems
- Fix for Linux 4.7 change to the TRACE_EVENT_FL_TRACEPOINT flag
Resolves: rhbz#1441914
Resolves: rhbz#1440726
* Thu Feb 25 2016 Dave Anderson <anderson@redhat.com> - 2.0-10
- Fix for ftrace symbol name changes in Linux 4.2
Resolves: rhbz#1265553
* Tue Sep 02 2014 Dave Anderson <anderson@redhat.com> - 2.0-9
- Add ppc64le support.
Resolves: rhbz#1123995
* Fri Jan 24 2014 Daniel Mach <dmach@redhat.com> - 2.0-8
- Mass rebuild 2014-01-24
* Fri Dec 27 2013 Daniel Mach <dmach@redhat.com> - 2.0-7
- Mass rebuild 2013-12-27
* Thu Dec 5 2013 Dave Anderson <anderson@redhat.com> - 2.0-6
- Add Linux 3.10 support.
Resolves: rhbz#863833
* Tue Nov 12 2013 Dave Anderson <anderson@redhat.com> - 2.0-5
- Add ARM64 support.
Resolves: rhbz#1028580
* Tue Aug 20 2013 Dave Anderson <anderson@redhat.com> - 2.0-4
- crash utility has added LZO and snappy compression in addition to zlib
* Wed May 29 2013 Dave Anderson <anderson@redhat.com> - 2.0-3
- Replace obsolete _init() and _fini() functions.
- Fix possible segmentation violation on calloc() failure.
- Initialize trace_dat to avoid compiler warning.
* Mon Nov 26 2012 Dave Anderson <anderson@redhat.com> - 2.0-2
- trace-cmd package required
- rpmlint cleanups to this file
- fix compiler warnings for trace.c
* Wed Nov 21 2012 Qiao Nuohan <qiaonuohan@cn.fujitsu.com> - 2.0-1
- update code
Resolves: rhbz#863833
* Wed Feb 8 2012 Dave Anderson <anderson@redhat.com> - 1.0-4
- Build with RPM_OPT_FLAGS.
Resolves: rhbz#729018
* Wed Jun 9 2010 Dave Anderson <anderson@redhat.com> - 1.0-3
- Remove trace_dump.patch, which requires a kernel later than
the RHEL6 base of 2.6.32.
Resolves: rbhz#601536
* Mon May 24 2010 Dave Anderson <anderson@redhat.com> - 1.0-2
- Fix for segmentation violation with "trace show -c cpu" command,
and add "trace dump -t" command.
Resolves: rbhz#592887
* Wed Dec 09 2009 Dave Anderson <anderson@redhat.com> - 1.0-1.2
- fix Makefile to account for s390 build
- change exclusive arch entry from i386 to {ix86}
- Resolves: rbhz#545564
* Tue Dec 08 2009 Dennis Gregorovic <dgregor@redhat.com> - 1.0-1.1
- Rebuilt for RHEL 6
* Fri Sep 25 2009 Dave Anderson <anderson@redhat.com>
- Initial crash-trace-command package

43
ftrace_event_call_rh_data.patch Normal file
View File

@ -0,0 +1,43 @@
Fix the extension trace.so for RHEL7.6, which moved
ftrace_event_call.data into an anonymous union, and the
previous offset has changed, so the trace.so extension
module fails to load, indicating "no commands registered:
shared object unloaded".
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -853,8 +853,18 @@ static int syscall_get_enter_fields(ulon
inited = 1;
data_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "data"),
MEMBER_OFFSET("trace_event_call", "data"));
- if (data_offset < 0)
- return -1;
+ if (data_offset < 0) {
+ /*
+ * rhel-7.6 moved the .data member into an anonymous union.
+ */
+ if (MEMBER_EXISTS("ftrace_event_call", "rh_data") &&
+ MEMBER_EXISTS("ftrace_event_data", "data")) {
+ data_offset = MEMBER_OFFSET("ftrace_event_call", "rh_data") +
+ MEMBER_OFFSET("ftrace_event_data", "data");
+ inited = 2;
+ } else
+ return -1;
+ }
enter_fields_offset = MEMBER_OFFSET("syscall_metadata", "enter_fields");
if (enter_fields_offset < 0)
@@ -868,6 +878,12 @@ work:
"read ftrace_event_call data", RETURN_ON_ERROR))
return -1;
+ if (inited == 2) {
+ if (!readmem(metadata, KVADDR, &metadata, sizeof(metadata),
+ "read ftrace_event_call data (indirect rh_data)", RETURN_ON_ERROR))
+ return -1;
+ }
+
*fields = metadata + enter_fields_offset;
return 0;
}

11
initialize_trace_dat.patch Normal file
View File

@ -0,0 +1,11 @@
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -1373,7 +1373,7 @@ static void ftrace_dump(int argc, char *
if (dump_symbols || dump_meta_data || argc - optind > 1)
cmd_usage(pc->curcmd, SYNOPSIS);
else {
- char *trace_dat;
+ char *trace_dat = "trace.dat";
int fd;
if (argc - optind == 0)

152
linux_3.10_support.patch Normal file
View File

@ -0,0 +1,152 @@
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -26,9 +26,21 @@ static int nr_cpu_ids;
*/
static int lockless_ring_buffer;
static int per_cpu_buffer_sizes;
+/*
+ * global and encapsulated current_trace are both supported
+ */
+static int encapsulated_current_trace;
+/*
+ * trace_buffer is supported
+ */
+static int trace_buffer_available;
#define koffset(struct, member) struct##_##member##_offset
+static int koffset(trace_array, current_trace);
+static int koffset(trace_array, trace_buffer);
+static int koffset(trace_array, max_buffer);
+static int koffset(trace_buffer, buffer);
static int koffset(trace_array, buffer);
static int koffset(tracer, name);
@@ -85,6 +97,8 @@ struct ring_buffer_per_cpu {
};
static ulong global_trace;
+static ulong global_trace_buffer;
+static ulong global_max_buffer;
static ulong global_ring_buffer;
static unsigned global_pages;
static struct ring_buffer_per_cpu *global_buffers;
@@ -144,8 +158,16 @@ static int init_offsets(void)
} \
} while (0)
+ if (encapsulated_current_trace)
+ init_offset(trace_array, current_trace);
- init_offset(trace_array, buffer);
+ if (trace_buffer_available) {
+ init_offset(trace_array, trace_buffer);
+ init_offset(trace_array, max_buffer);
+ init_offset(trace_buffer, buffer);
+ } else {
+ init_offset(trace_array, buffer);
+ }
init_offset(tracer, name);
if (MEMBER_EXISTS("ring_buffer_per_cpu", "nr_pages")) {
@@ -400,8 +422,13 @@ out_fail:
static int ftrace_int_global_trace(void)
{
- read_value(global_ring_buffer, global_trace, trace_array, buffer);
- read_value(global_pages, global_ring_buffer, ring_buffer, pages);
+ if (trace_buffer_available) {
+ global_trace_buffer = global_trace + koffset(trace_array, trace_buffer);
+ read_value(global_ring_buffer, global_trace_buffer, trace_buffer, buffer);
+ } else {
+ read_value(global_ring_buffer, global_trace, trace_array, buffer);
+ read_value(global_pages, global_ring_buffer, ring_buffer, pages);
+ }
global_buffers = calloc(sizeof(*global_buffers), nr_cpu_ids);
if (global_buffers == NULL)
@@ -420,12 +447,17 @@ out_fail:
static int ftrace_int_max_tr_trace(void)
{
- read_value(max_tr_ring_buffer, max_tr_trace, trace_array, buffer);
+ if (trace_buffer_available) {
+ global_max_buffer = global_trace + koffset(trace_array, max_buffer);
+ read_value(max_tr_ring_buffer, global_max_buffer, trace_buffer, buffer);
+ } else {
+ read_value(max_tr_ring_buffer, max_tr_trace, trace_array, buffer);
- if (!max_tr_ring_buffer)
- return 0;
+ if (!max_tr_ring_buffer)
+ return 0;
- read_value(max_tr_pages, max_tr_ring_buffer, ring_buffer, pages);
+ read_value(max_tr_pages, max_tr_ring_buffer, ring_buffer, pages);
+ }
max_tr_buffers = calloc(sizeof(*max_tr_buffers), nr_cpu_ids);
if (max_tr_buffers == NULL)
@@ -449,7 +481,12 @@ static int ftrace_init_current_tracer(vo
char tmp[128];
/* Get current tracer name */
- read_value(addr, current_trace, POINTER_SYM, POINTER);
+ if (encapsulated_current_trace) {
+ read_value(addr, global_trace, trace_array, current_trace);
+ } else {
+ read_value(addr, current_trace, POINTER_SYM, POINTER);
+ }
+
read_value(addr, addr, tracer, name);
read_string(addr, tmp, 128);
@@ -471,19 +508,33 @@ static int ftrace_init(void)
struct syment *sym_current_trace;
sym_global_trace = symbol_search("global_trace");
- sym_max_tr_trace = symbol_search("max_tr");
sym_ftrace_events = symbol_search("ftrace_events");
- sym_current_trace = symbol_search("current_trace");
- if (sym_global_trace == NULL || sym_max_tr_trace == NULL
- || sym_ftrace_events == NULL
- || sym_current_trace == NULL)
+ if (sym_global_trace == NULL || sym_ftrace_events == NULL)
return -1;
global_trace = sym_global_trace->value;
- max_tr_trace = sym_max_tr_trace->value;
ftrace_events = sym_ftrace_events->value;
- current_trace = sym_current_trace->value;
+
+ if (MEMBER_EXISTS("trace_array", "current_trace")) {
+ encapsulated_current_trace = 1;
+ } else {
+ sym_current_trace = symbol_search("current_trace");
+ if (sym_current_trace == NULL)
+ return -1;
+
+ current_trace = sym_current_trace->value;
+ }
+
+ if (MEMBER_EXISTS("trace_array", "trace_buffer")) {
+ trace_buffer_available = 1;
+ } else {
+ sym_max_tr_trace = symbol_search("max_tr");
+ if (sym_max_tr_trace == NULL)
+ return -1;
+
+ max_tr_trace = sym_max_tr_trace->value;
+ }
if (!try_get_symbol_data("nr_cpu_ids", sizeof(int), &nr_cpu_ids))
nr_cpu_ids = 1;
@@ -1453,6 +1504,7 @@ static void ftrace_show(int argc, char *
if ((file = popen(trace_cmd, "r"))) {
ret = fread(buf, 1, sizeof(buf), file);
buf[ret] = 0;
+ pclose(file);
}
if (!strstr(buf, "trace-cmd version")) {
if (env_trace_cmd)

265
linux_4.2_support.patch Normal file
View File

@ -0,0 +1,265 @@
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -34,6 +34,10 @@ static int encapsulated_current_trace;
* trace_buffer is supported
*/
static int trace_buffer_available;
+/*
+ * max_buffer is supported
+ */
+static int max_buffer_available;
#define koffset(struct, member) struct##_##member##_offset
@@ -154,6 +158,7 @@ static int init_offsets(void)
if (koffset(struct, member) < 0) { \
fprintf(fp, "failed to init the offset, struct:"\
#struct ", member:" #member); \
+ fprintf(fp, "\n"); \
return -1; \
} \
} while (0)
@@ -163,8 +168,10 @@ static int init_offsets(void)
if (trace_buffer_available) {
init_offset(trace_array, trace_buffer);
- init_offset(trace_array, max_buffer);
init_offset(trace_buffer, buffer);
+
+ if (max_buffer_available)
+ init_offset(trace_array, max_buffer);
} else {
init_offset(trace_array, buffer);
}
@@ -176,6 +183,9 @@ static int init_offsets(void)
fprintf(fp, "per cpu buffer sizes\n");
}
+ if (kernel_symbol_exists("ring_buffer_read"))
+ gdb_set_crash_scope(symbol_value("ring_buffer_read"), "ring_buffer_read");
+
if (!per_cpu_buffer_sizes)
init_offset(ring_buffer, pages);
init_offset(ring_buffer, flags);
@@ -205,7 +215,12 @@ static int init_offsets(void)
init_offset(list_head, next);
- init_offset(ftrace_event_call, list);
+ koffset(ftrace_event_call, list) = MAX(MEMBER_OFFSET("ftrace_event_call", "list"),
+ MEMBER_OFFSET("trace_event_call", "list"));
+ if (koffset(ftrace_event_call, list) < 0) {
+ fprintf(fp, "failed to init the offset, struct:[f]trace_event_call member:list)\n");
+ return -1; \
+ }
init_offset(ftrace_event_field, link);
init_offset(ftrace_event_field, name);
@@ -448,6 +463,9 @@ out_fail:
static int ftrace_int_max_tr_trace(void)
{
if (trace_buffer_available) {
+ if (!max_buffer_available)
+ return 0;
+
global_max_buffer = global_trace + koffset(trace_array, max_buffer);
read_value(max_tr_ring_buffer, global_max_buffer, trace_buffer, buffer);
} else {
@@ -528,6 +546,9 @@ static int ftrace_init(void)
if (MEMBER_EXISTS("trace_array", "trace_buffer")) {
trace_buffer_available = 1;
+
+ if (MEMBER_EXISTS("trace_array", "max_buffer"))
+ max_buffer_available = 1;
} else {
sym_max_tr_trace = symbol_search("max_tr");
if (sym_max_tr_trace == NULL)
@@ -710,7 +731,8 @@ static int syscall_get_enter_fields(ulon
goto work;
inited = 1;
- data_offset = MEMBER_OFFSET("ftrace_event_call", "data");
+ data_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "data"),
+ MEMBER_OFFSET("trace_event_call", "data"));
if (data_offset < 0)
return -1;
@@ -742,7 +764,8 @@ static int syscall_get_exit_fields_old(u
goto work;
inited = 1;
- data_offset = MEMBER_OFFSET("ftrace_event_call", "data");
+ data_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "data"),
+ MEMBER_OFFSET("trace_event_call", "data"));
if (data_offset < 0)
return -1;
@@ -803,18 +826,22 @@ int ftrace_get_event_type_fields(ulong c
goto work;
inited = 1;
- fields_offset = MEMBER_OFFSET("ftrace_event_call", "fields");
+ fields_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "fields"),
+ MEMBER_OFFSET("trace_event_call", "fields"));
- class_offset = MEMBER_OFFSET("ftrace_event_call", "class");
+ class_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "class"),
+ MEMBER_OFFSET("trace_event_call", "class"));
if (class_offset < 0)
goto work;
inited = 2;
- fields_offset = MEMBER_OFFSET("ftrace_event_class", "fields");
+ fields_offset = MAX(MEMBER_OFFSET("ftrace_event_class", "fields"),
+ MEMBER_OFFSET("trace_event_class", "fields"));
if (fields_offset < 0)
return -1;
- get_fields_offset = MEMBER_OFFSET("ftrace_event_class", "get_fields");
+ get_fields_offset = MAX(MEMBER_OFFSET("ftrace_event_class", "get_fields"),
+ MEMBER_OFFSET("trace_event_class", "get_fields"));
if ((sp = symbol_search("syscall_get_enter_fields")) != NULL)
syscall_get_enter_fields_value = sp->value;
if ((sp = symbol_search("syscall_get_exit_fields")) != NULL)
@@ -988,19 +1015,45 @@ static void ftrace_destroy_event_types(v
free(ftrace_common_fields);
}
+#define TRACE_EVENT_FL_TRACEPOINT 0x40
+
static
int ftrace_get_event_type_name(ulong call, char *name, int len)
{
static int inited;
static int name_offset;
+ static int flags_offset;
+ static int tp_name_offset;
+ uint flags;
ulong name_addr;
- if (!inited) {
- inited = 1;
- name_offset = MEMBER_OFFSET("ftrace_event_call", "name");
- }
+ if (inited)
+ goto work;
+ inited = 1;
+ name_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "name"),
+ MEMBER_OFFSET("trace_event_call", "name"));
+ if (name_offset >= 0)
+ goto work;
+
+ name_offset = MAX(ANON_MEMBER_OFFSET("ftrace_event_call", "name"),
+ ANON_MEMBER_OFFSET("trace_event_call", "name"));
+ if (name_offset < 0)
+ return -1;
+
+ flags_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "flags"),
+ MEMBER_OFFSET("trace_event_call", "flags"));
+ if (flags_offset < 0)
+ return -1;
+
+ tp_name_offset = MEMBER_OFFSET("tracepoint", "name");
+ if (tp_name_offset < 0)
+ return -1;
+
+ inited = 2;
+
+work:
if (name_offset < 0)
return -1;
@@ -1008,6 +1061,21 @@ int ftrace_get_event_type_name(ulong cal
"read ftrace_event_call name_addr", RETURN_ON_ERROR))
return -1;
+ if (inited == 2) {
+ if (!readmem(call + flags_offset, KVADDR, &flags,
+ sizeof(flags), "read ftrace_event_call flags",
+ RETURN_ON_ERROR))
+ return -1;
+
+ if (flags & TRACE_EVENT_FL_TRACEPOINT) {
+ if (!readmem(name_addr + tp_name_offset, KVADDR,
+ &name_addr, sizeof(name_addr),
+ "read tracepoint name", RETURN_ON_ERROR))
+ return -1;
+ }
+
+ }
+
if (!read_string(name_addr, name, len))
return -1;
@@ -1028,16 +1096,19 @@ int ftrace_get_event_type_system(ulong c
goto work;
inited = 1;
- sys_offset = MEMBER_OFFSET("ftrace_event_call", "system");
+ sys_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "system"),
+ MEMBER_OFFSET("trace_event_call", "system"));
if (sys_offset >= 0)
goto work;
- class_offset = MEMBER_OFFSET("ftrace_event_call", "class");
+ class_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "class"),
+ MEMBER_OFFSET("trace_event_call", "class"));
if (class_offset < 0)
return -1;
- sys_offset = MEMBER_OFFSET("ftrace_event_class", "system");
+ sys_offset = MAX(MEMBER_OFFSET("ftrace_event_class", "system"),
+ MEMBER_OFFSET("trace_event_class", "system"));
inited = 2;
work:
@@ -1109,7 +1180,8 @@ int ftrace_get_event_type_print_fmt(ulon
if (!inited) {
inited = 1;
- fmt_offset = MEMBER_OFFSET("ftrace_event_call", "print_fmt");
+ fmt_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "print_fmt"),
+ MEMBER_OFFSET("trace_event_call", "print_fmt"));
}
if (fmt_offset < 0) {
@@ -1132,11 +1204,13 @@ int ftrace_get_event_type_id(ulong call,
if (!inited) {
inited = 1;
- id_offset = MEMBER_OFFSET("ftrace_event_call", "id");
+ id_offset = MAX(MEMBER_OFFSET("ftrace_event_call", "id"),
+ MEMBER_OFFSET("trace_event_call", "id"));
if (id_offset < 0) {
/* id = call->event.type */
- int f1 = MEMBER_OFFSET("ftrace_event_call", "event");
+ int f1 = MAX(MEMBER_OFFSET("ftrace_event_call", "event"),
+ MEMBER_OFFSET("trace_event_call", "event"));
int f2 = MEMBER_OFFSET("trace_event", "type");
if (f1 >= 0 && f2 >= 0)
@@ -1495,7 +1569,6 @@ static void ftrace_show(int argc, char *
FILE *file;
size_t ret;
size_t nitems __attribute__ ((__unused__));
- char *unused __attribute__ ((__unused__));
/* check trace-cmd */
if (env_trace_cmd)
@@ -1519,8 +1592,9 @@ static void ftrace_show(int argc, char *
}
/* dump trace.dat to the temp file */
- unused = mktemp(tmp);
- fd = open(tmp, O_WRONLY | O_CREAT | O_TRUNC, 0644);
+ fd = mkstemp(tmp);
+ if (fd < 0)
+ return;
if (trace_cmd_data_output(fd) < 0)
goto out;

13
ppc64_ring_buffer_read.patch Normal file
View File

@ -0,0 +1,13 @@
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -198,7 +198,9 @@ static int init_offsets(void)
fprintf(fp, "per cpu buffer sizes\n");
}
- if (kernel_symbol_exists("ring_buffer_read"))
+ if (machine_type("PPC64") && kernel_symbol_exists(".ring_buffer_read"))
+ gdb_set_crash_scope(symbol_value(".ring_buffer_read"), ".ring_buffer_read");
+ else if (kernel_symbol_exists("ring_buffer_read"))
gdb_set_crash_scope(symbol_value("ring_buffer_read"), "ring_buffer_read");
if (!per_cpu_buffer_sizes)

13
ppc64le.patch Normal file
View File

@ -0,0 +1,13 @@
--- crash-trace-command-2.0/Makefile.orig
+++ crash-trace-command-2.0/Makefile
@@ -6,6 +6,10 @@ ifeq ($(shell arch), ppc64)
TARGET=PPC64
TARGET_CFLAGS=-m64
endif
+ifeq ($(shell arch), ppc64le)
+ TARGET=PPC64
+ TARGET_CFLAGS=-m64
+endif
ifeq ($(shell arch), ia64)
TARGET=IA64
TARGET_CFLAGS=

31
replace_obsolete_init_and_fini.patch Normal file
View File

@ -0,0 +1,31 @@
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -1536,23 +1535,21 @@ static struct command_table_entry comman
static int ftrace_initialized;
-int _init(void)
+void __attribute__((constructor))
+trace_init(void)
{
if (ftrace_init() < 0)
- return 0;
+ return;
ftrace_initialized = 1;
register_extension(command_table);
-
- return 1;
}
-int _fini(void)
+void __attribute__((destructor))
+trace_fini(void)
{
if (ftrace_initialized)
ftrace_destroy();
-
- return 1;
}
#define TRACE_CMD_FILE_VERSION_STRING "6"

9
rhel8_build.patch Normal file
View File

@ -0,0 +1,9 @@
diff -up crash-trace-command-2.0/Makefile.orig crash-trace-command-2.0/Makefile
--- crash-trace-command-2.0/Makefile.orig 2018-09-19 15:46:23.812160803 -0400
+++ crash-trace-command-2.0/Makefile 2018-09-19 15:47:12.489890130 -0400
@@ -36,4 +36,4 @@ INCDIR=/usr/include/crash
all: trace.so
trace.so: $(INCDIR)/defs.h trace.c
- gcc $(RPM_OPT_FLAGS) -Wall -I$(INCDIR) -nostartfiles -shared -rdynamic -o trace.so trace.c -fPIC -D$(TARGET) $(TARGET_CFLAGS)
+ gcc $(RPM_OPT_FLAGS) -Wall -I$(INCDIR) -nostartfiles -shared -rdynamic -o trace.so trace.c -fPIC -D$(TARGET) $(TARGET_CFLAGS) -Wl,-z,now

10
sigsegv_on_calloc_failure.patch Normal file
View File

@ -0,0 +1,10 @@
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -251,7 +251,6 @@ static int ftrace_init_pages(struct ring
cpu_buffer->linear_pages = calloc(sizeof(ulong), nr_pages + 1);
if (cpu_buffer->linear_pages == NULL) {
- free(cpu_buffer->pages);
return -1;
}

1
sources Normal file
View File

@ -0,0 +1 @@
SHA512 (crash-trace-command-2.0.tar.gz) = 992e98e1415f28aea76d6baa990ae0cf32054ab6deda7314392ddc356137903e6e0005a572573bc1c9fa921fabb502ae20a3b360fb2165be8523ebe014dc5ad2

46
trace_compiler_warnings.patch Normal file
View File

@ -0,0 +1,46 @@
--- crash-trace-command-2.0/trace.c.orig
+++ crash-trace-command-2.0/trace.c
@@ -15,6 +15,7 @@
#include <stdio.h>
#include <ctype.h>
#include <setjmp.h>
+#include <stdlib.h>
static int verbose = 0;
@@ -892,7 +893,7 @@ out_fail:
static int ftrace_init_event_type(ulong call, struct event_type *aevent_type)
{
- ulong fields_head;
+ ulong fields_head = 0;
if (ftrace_get_event_type_fields(call, &fields_head) < 0)
return -1;
@@ -1443,6 +1444,8 @@ static void ftrace_show(int argc, char *
int fd;
FILE *file;
size_t ret;
+ size_t nitems __attribute__ ((__unused__));
+ char *unused __attribute__ ((__unused__));
/* check trace-cmd */
if (env_trace_cmd)
@@ -1465,7 +1468,7 @@ static void ftrace_show(int argc, char *
}
/* dump trace.dat to the temp file */
- mktemp(tmp);
+ unused = mktemp(tmp);
fd = open(tmp, O_WRONLY | O_CREAT | O_TRUNC, 0644);
if (trace_cmd_data_output(fd) < 0)
goto out;
@@ -1478,7 +1481,7 @@ static void ftrace_show(int argc, char *
ret = fread(buf, 1, sizeof(buf), file);
if (ret == 0)
break;
- fwrite(buf, 1, ret, fp);
+ nitems = fwrite(buf, 1, ret, fp);
}
pclose(file);
out: