#include <linux/swap.h>
#include <linux/wait.h>
#include <linux/mutex.h>
+#include <linux/device.h>
#include "lttng-events.h"
#include "lttng-tracer.h"
#include "wrapper/nsproxy.h"
#include "wrapper/irq.h"
#include "wrapper/tracepoint.h"
+#include "wrapper/genhd.h"
#ifdef CONFIG_LTTNG_HAS_LIST_IRQ
#include <linux/irq.h>
#define TRACE_INCLUDE_FILE lttng-statedump
#include "instrumentation/events/lttng-module/lttng-statedump.h"
+DEFINE_TRACE(lttng_statedump_block_device);
+DEFINE_TRACE(lttng_statedump_end);
+DEFINE_TRACE(lttng_statedump_interrupt);
+DEFINE_TRACE(lttng_statedump_file_descriptor);
+DEFINE_TRACE(lttng_statedump_start);
+DEFINE_TRACE(lttng_statedump_process_state);
+DEFINE_TRACE(lttng_statedump_network_interface);
+
struct lttng_fd_ctx {
char *page;
struct lttng_session *session;
struct task_struct *p;
+ struct fdtable *fdt;
};
/*
LTTNG_DEAD = 7,
};
+static
+int lttng_enumerate_block_devices(struct lttng_session *session)
+{
+ struct class *ptr_block_class;
+ struct device_type *ptr_disk_type;
+ struct class_dev_iter iter;
+ struct device *dev;
+
+ ptr_block_class = wrapper_get_block_class();
+ if (!ptr_block_class)
+ return -ENOSYS;
+ ptr_disk_type = wrapper_get_disk_type();
+ if (!ptr_disk_type) {
+ return -ENOSYS;
+ }
+ class_dev_iter_init(&iter, ptr_block_class, NULL, ptr_disk_type);
+ while ((dev = class_dev_iter_next(&iter))) {
+ struct disk_part_iter piter;
+ struct gendisk *disk = dev_to_disk(dev);
+ struct hd_struct *part;
+
+ /*
+ * Don't show empty devices or things that have been
+ * suppressed
+ */
+ if (get_capacity(disk) == 0 ||
+ (disk->flags & GENHD_FL_SUPPRESS_PARTITION_INFO))
+ continue;
+
+ disk_part_iter_init(&piter, disk, DISK_PITER_INCL_PART0);
+ while ((part = disk_part_iter_next(&piter))) {
+ char name_buf[BDEVNAME_SIZE];
+ char *p;
+
+ p = wrapper_disk_name(disk, part->partno, name_buf);
+ if (!p) {
+ disk_part_iter_exit(&piter);
+ class_dev_iter_exit(&iter);
+ return -ENOSYS;
+ }
+ trace_lttng_statedump_block_device(session,
+ part_devt(part), name_buf);
+ }
+ disk_part_iter_exit(&piter);
+ }
+ class_dev_iter_exit(&iter);
+ return 0;
+}
+
#ifdef CONFIG_INET
+
static
void lttng_enumerate_device(struct lttng_session *session,
struct net_device *dev)
{
const struct lttng_fd_ctx *ctx = p;
const char *s = d_path(&file->f_path, ctx->page, PAGE_SIZE);
+ unsigned int flags = file->f_flags;
+ /*
+ * We don't expose kernel internal flags, only userspace-visible
+ * flags.
+ */
+ flags &= ~FMODE_NONOTIFY;
+ if (test_bit(fd, ctx->fdt->close_on_exec))
+ flags |= O_CLOEXEC;
if (IS_ERR(s)) {
struct dentry *dentry = file->f_path.dentry;
/* Make sure we give at least some info */
spin_lock(&dentry->d_lock);
trace_lttng_statedump_file_descriptor(ctx->session, ctx->p, fd,
- dentry->d_name.name);
+ dentry->d_name.name, flags, file->f_mode);
spin_unlock(&dentry->d_lock);
goto end;
}
- trace_lttng_statedump_file_descriptor(ctx->session, ctx->p, fd, s);
+ trace_lttng_statedump_file_descriptor(ctx->session, ctx->p, fd, s,
+ flags, file->f_mode);
end:
return 0;
}
struct lttng_fd_ctx ctx = { .page = tmp, .session = session, .p = p };
task_lock(p);
+ ctx.fdt = files_fdtable(p->files);
lttng_iterate_fd(p->files, 0, lttng_dump_one_fd, &ctx);
task_unlock(p);
}
/* FIXME lttng_enumerate_vm_maps(session); */
lttng_list_interrupts(session);
lttng_enumerate_network_ip_interface(session);
+ lttng_enumerate_block_devices(session);
/* TODO lttng_dump_idt_table(session); */
/* TODO lttng_dump_softirq_vec(session); */