#include <linux/mutex.h>
#include "lttng-events.h"
+#include "lttng-tracer.h"
#include "wrapper/irqdesc.h"
#include "wrapper/spinlock.h"
#include "wrapper/fdtable.h"
#include "wrapper/nsproxy.h"
+#include "wrapper/irq.h"
+#include "wrapper/tracepoint.h"
-#ifdef CONFIG_GENERIC_HARDIRQS
+#ifdef CONFIG_LTTNG_HAS_LIST_IRQ
#include <linux/irq.h>
#endif
int lttng_enumerate_file_descriptors(struct lttng_session *session)
{
struct task_struct *p;
- char *tmp = (char *) __get_free_page(GFP_KERNEL);
+ char *tmp;
+
+ tmp = (char *) __get_free_page(GFP_KERNEL);
+ if (!tmp)
+ return -ENOMEM;
/* Enumerate active file descriptors */
rcu_read_lock();
}
#endif
-#ifdef CONFIG_GENERIC_HARDIRQS
+#ifdef CONFIG_LTTNG_HAS_LIST_IRQ
#if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39))
#define irq_desc_get_chip(desc) get_irq_desc_chip(desc)
#endif
static
-void lttng_list_interrupts(struct lttng_session *session)
+int lttng_list_interrupts(struct lttng_session *session)
{
unsigned int irq;
unsigned long flags = 0;
wrapper_desc_spin_unlock(&desc->lock);
local_irq_restore(flags);
}
+ return 0;
#undef irq_to_desc
}
#else
static inline
-void lttng_list_interrupts(struct lttng_session *session)
+int lttng_list_interrupts(struct lttng_session *session)
{
+ return 0;
}
#endif
static
int do_lttng_statedump(struct lttng_session *session)
{
- int cpu;
+ int cpu, ret;
trace_lttng_statedump_start(session);
- lttng_enumerate_process_states(session);
- lttng_enumerate_file_descriptors(session);
- /* FIXME lttng_enumerate_vm_maps(session); */
- lttng_list_interrupts(session);
- lttng_enumerate_network_ip_interface(session);
+ ret = lttng_enumerate_process_states(session);
+ if (ret)
+ return ret;
+ ret = lttng_enumerate_file_descriptors(session);
+ if (ret)
+ return ret;
+ /*
+ * FIXME
+ * ret = lttng_enumerate_vm_maps(session);
+ * if (ret)
+ * return ret;
+ */
+ ret = lttng_list_interrupts(session);
+ if (ret)
+ return ret;
+ ret = lttng_enumerate_network_ip_interface(session);
+ if (ret)
+ return ret;
/* TODO lttng_dump_idt_table(session); */
/* TODO lttng_dump_softirq_vec(session); */
}
EXPORT_SYMBOL_GPL(lttng_statedump_start);
+static
+int __init lttng_statedump_init(void)
+{
+ /*
+ * Allow module to load even if the fixup cannot be done. This
+ * will allow seemless transition when the underlying issue fix
+ * is merged into the Linux kernel, and when tracepoint.c
+ * "tracepoint_module_notify" is turned into a static function.
+ */
+ (void) wrapper_lttng_fixup_sig(THIS_MODULE);
+ return 0;
+}
+
+module_init(lttng_statedump_init);
+
+static
+void __exit lttng_statedump_exit(void)
+{
+}
+
+module_exit(lttng_statedump_exit);
+
MODULE_LICENSE("GPL and additional rights");
MODULE_AUTHOR("Jean-Hugues Deschenes");
MODULE_DESCRIPTION("Linux Trace Toolkit Next Generation Statedump");
+MODULE_VERSION(__stringify(LTTNG_MODULES_MAJOR_VERSION) "."
+ __stringify(LTTNG_MODULES_MINOR_VERSION) "."
+ __stringify(LTTNG_MODULES_PATCHLEVEL_VERSION)
+ LTTNG_MODULES_EXTRAVERSION);